illumos/illumos-gate: usr/src/uts/common/fs/zfs/dsl

annotate usr/src/uts/common/fs/zfs/dsl_dataset.c @ 12527:693dd2cad55f

6884007 zfs_send() can leave temporary holds around 6954429 ZFS_IOC_VDEV_SPLIT missing from truss/codes.c

author	Chris Kirby <Chris.Kirby@oracle.com>
date	Tue, 01 Jun 2010 17:04:42 -0600
parents	54258108784b
children	16aef3d16470

rev	line source
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2 * CDDL HEADER START
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	3 *
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	4 * The contents of this file are subject to the terms of the
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	5 * Common Development and Distribution License (the "License").
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	6 * You may not use this file except in compliance with the License.
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	7 *
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	9 * or http://www.opensolaris.org/os/licensing.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	10 * See the License for the specific language governing permissions
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	11 * and limitations under the License.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	12 *
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	13 * When distributing Covered Code, include this CDDL HEADER in each
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	15 * If applicable, add the following below this CDDL HEADER, with the
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	16 * fields enclosed by brackets "[]" replaced with your own identifying
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	17 * information: Portions Copyright [yyyy] [name of copyright owner]
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	18 *
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	19 * CDDL HEADER END
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	20 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	21 /*
12115 3655f38d3bea 6942295 use-after-free panic in dsl_dataset_user_release_one Chris Kirby <Chris.Kirby@oracle.com> parents: 11823 diff changeset	22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	23 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	24
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	25 #include <sys/dmu_objset.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	26 #include <sys/dsl_dataset.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	27 #include <sys/dsl_dir.h>
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	28 #include <sys/dsl_prop.h>
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	29 #include <sys/dsl_synctask.h>
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	30 #include <sys/dmu_traverse.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	31 #include <sys/dmu_tx.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	32 #include <sys/arc.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	33 #include <sys/zio.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	34 #include <sys/zap.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	35 #include <sys/unique.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	36 #include <sys/zfs_context.h>
4007 c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	37 #include <sys/zfs_ioctl.h>
4543 12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4009 diff changeset	38 #include <sys/spa.h>
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	39 #include <sys/zfs_znode.h>
12527 693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	40 #include <sys/zfs_onexit.h>
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	41 #include <sys/zvol.h>
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	42 #include <sys/dsl_scan.h>
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	43 #include <sys/dsl_deadlist.h>
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	44
12450 c77e20e4e046 6938089 dedup-induced latency causes FC initiator logouts/FC port resets George Wilson <George.Wilson@Sun.COM> parents: 12296 diff changeset	45 /*
c77e20e4e046 6938089 dedup-induced latency causes FC initiator logouts/FC port resets George Wilson <George.Wilson@Sun.COM> parents: 12296 diff changeset	46 * Enable/disable prefetching of dedup-ed blocks which are going to be freed.
c77e20e4e046 6938089 dedup-induced latency causes FC initiator logouts/FC port resets George Wilson <George.Wilson@Sun.COM> parents: 12296 diff changeset	47 */
c77e20e4e046 6938089 dedup-induced latency causes FC initiator logouts/FC port resets George Wilson <George.Wilson@Sun.COM> parents: 12296 diff changeset	48 int zfs_dedup_prefetch = 1;
c77e20e4e046 6938089 dedup-induced latency causes FC initiator logouts/FC port resets George Wilson <George.Wilson@Sun.COM> parents: 12296 diff changeset	49
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	50 static char *dsl_reaper = "the grim reaper";
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	51
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	52 static dsl_checkfunc_t dsl_dataset_destroy_begin_check;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	53 static dsl_syncfunc_t dsl_dataset_destroy_begin_sync;
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	54 static dsl_syncfunc_t dsl_dataset_set_reservation_sync;
1731 1efa8b3d1296 6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train bonwick parents: 1544 diff changeset	55
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	56 #define SWITCH64(x, y) \
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	57 { \
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	58 uint64_t __tmp = (x); \
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	59 (x) = (y); \
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	60 (y) = __tmp; \
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	61 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	62
3444 dc160a70a50d 6410433 'zpool status -v' would be more useful with filenames ek110237 parents: 3025 diff changeset	63 #define DS_REF_MAX (1ULL << 62)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	64
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	65 #define DSL_DEADLIST_BLOCKSIZE SPA_MAXBLOCKSIZE
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	66
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	67 #define DSL_DATASET_IS_DESTROYED(ds) ((ds)->ds_owner == dsl_reaper)
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	68
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	69
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	70 /*
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	71 * Figure out how much of this delta should be propogated to the dsl_dir
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	72 * layer. If there's a refreservation, that space has already been
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	73 * partially accounted for in our ancestors.
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	74 */
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	75 static int64_t
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	76 parent_delta(dsl_dataset_t *ds, int64_t delta)
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	77 {
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	78 uint64_t old_bytes, new_bytes;
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	79
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	80 if (ds->ds_reserved == 0)
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	81 return (delta);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	82
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	83 old_bytes = MAX(ds->ds_phys->ds_unique_bytes, ds->ds_reserved);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	84 new_bytes = MAX(ds->ds_phys->ds_unique_bytes + delta, ds->ds_reserved);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	85
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	86 ASSERT3U(ABS((int64_t)(new_bytes - old_bytes)), <=, ABS(delta));
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	87 return (new_bytes - old_bytes);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	88 }
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	89
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	90 void
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	91 dsl_dataset_block_born(dsl_dataset_t ds, const blkptr_t bp, dmu_tx_t *tx)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	92 {
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	93 int used = bp_get_dsize_sync(tx->tx_pool->dp_spa, bp);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	94 int compressed = BP_GET_PSIZE(bp);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	95 int uncompressed = BP_GET_UCSIZE(bp);
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	96 int64_t delta;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	97
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	98 dprintf_bp(bp, "ds=%p", ds);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	99
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	100 ASSERT(dmu_tx_is_syncing(tx));
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	101 /* It could have been compressed away to nothing */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	102 if (BP_IS_HOLE(bp))
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	103 return;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	104 ASSERT(BP_GET_TYPE(bp) != DMU_OT_NONE);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	105 ASSERT3U(BP_GET_TYPE(bp), <, DMU_OT_NUMTYPES);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	106 if (ds == NULL) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	107 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	108 * Account for the meta-objset space in its placeholder
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	109 * dsl_dir.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	110 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	111 ASSERT3U(compressed, ==, uncompressed); /* it's all metadata */
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	112 dsl_dir_diduse_space(tx->tx_pool->dp_mos_dir, DD_USED_HEAD,
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	113 used, compressed, uncompressed, tx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	114 dsl_dir_dirty(tx->tx_pool->dp_mos_dir, tx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	115 return;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	116 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	117 dmu_buf_will_dirty(ds->ds_dbuf, tx);
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	118
7595 2ff5700c7efc 6747355 finish closing race condition when setting refreservation Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7525 diff changeset	119 mutex_enter(&ds->ds_dir->dd_lock);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	120 mutex_enter(&ds->ds_lock);
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	121 delta = parent_delta(ds, used);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	122 ds->ds_phys->ds_used_bytes += used;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	123 ds->ds_phys->ds_compressed_bytes += compressed;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	124 ds->ds_phys->ds_uncompressed_bytes += uncompressed;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	125 ds->ds_phys->ds_unique_bytes += used;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	126 mutex_exit(&ds->ds_lock);
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	127 dsl_dir_diduse_space(ds->ds_dir, DD_USED_HEAD, delta,
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	128 compressed, uncompressed, tx);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	129 dsl_dir_transfer_space(ds->ds_dir, used - delta,
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	130 DD_USED_REFRSRV, DD_USED_HEAD, tx);
7595 2ff5700c7efc 6747355 finish closing race condition when setting refreservation Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7525 diff changeset	131 mutex_exit(&ds->ds_dir->dd_lock);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	132 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	133
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 6975 diff changeset	134 int
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	135 dsl_dataset_block_kill(dsl_dataset_t ds, const blkptr_t bp, dmu_tx_t *tx,
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	136 boolean_t async)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	137 {
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	138 if (BP_IS_HOLE(bp))
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	139 return (0);
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	140
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	141 ASSERT(dmu_tx_is_syncing(tx));
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	142 ASSERT(bp->blk_birth <= tx->tx_txg);
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	143
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	144 int used = bp_get_dsize_sync(tx->tx_pool->dp_spa, bp);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	145 int compressed = BP_GET_PSIZE(bp);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	146 int uncompressed = BP_GET_UCSIZE(bp);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	147
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	148 ASSERT(used > 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	149 if (ds == NULL) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	150 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	151 * Account for the meta-objset space in its placeholder
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	152 * dataset.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	153 */
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	154 dsl_free(tx->tx_pool, tx->tx_txg, bp);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	155
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	156 dsl_dir_diduse_space(tx->tx_pool->dp_mos_dir, DD_USED_HEAD,
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	157 -used, -compressed, -uncompressed, tx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	158 dsl_dir_dirty(tx->tx_pool->dp_mos_dir, tx);
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 6975 diff changeset	159 return (used);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	160 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	161 ASSERT3P(tx->tx_pool, ==, ds->ds_dir->dd_pool);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	162
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	163 ASSERT(!dsl_dataset_is_snapshot(ds));
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	164 dmu_buf_will_dirty(ds->ds_dbuf, tx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	165
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	166 if (bp->blk_birth > ds->ds_phys->ds_prev_snap_txg) {
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	167 int64_t delta;
3547 e396e0a440b1 6512391 DMU should leverage ZIO dependencies to achieve greater parallelism maybee parents: 3444 diff changeset	168
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	169 dprintf_bp(bp, "freeing ds=%llu", ds->ds_object);
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	170 dsl_free(tx->tx_pool, tx->tx_txg, bp);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	171
7595 2ff5700c7efc 6747355 finish closing race condition when setting refreservation Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7525 diff changeset	172 mutex_enter(&ds->ds_dir->dd_lock);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	173 mutex_enter(&ds->ds_lock);
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	174 ASSERT(ds->ds_phys->ds_unique_bytes >= used \|\|
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	175 !DS_UNIQUE_IS_ACCURATE(ds));
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	176 delta = parent_delta(ds, -used);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	177 ds->ds_phys->ds_unique_bytes -= used;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	178 mutex_exit(&ds->ds_lock);
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	179 dsl_dir_diduse_space(ds->ds_dir, DD_USED_HEAD,
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	180 delta, -compressed, -uncompressed, tx);
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	181 dsl_dir_transfer_space(ds->ds_dir, -used - delta,
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	182 DD_USED_REFRSRV, DD_USED_HEAD, tx);
7595 2ff5700c7efc 6747355 finish closing race condition when setting refreservation Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7525 diff changeset	183 mutex_exit(&ds->ds_dir->dd_lock);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	184 } else {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	185 dprintf_bp(bp, "putting on dead list: %s", "");
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	186 if (async) {
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	187 /*
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	188 * We are here as part of zio's write done callback,
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	189 * which means we're a zio interrupt thread. We can't
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	190 * call dsl_deadlist_insert() now because it may block
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	191 * waiting for I/O. Instead, put bp on the deferred
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	192 * queue and let dsl_pool_sync() finish the job.
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	193 */
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	194 bplist_append(&ds->ds_pending_deadlist, bp);
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	195 } else {
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	196 dsl_deadlist_insert(&ds->ds_deadlist, bp, tx);
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	197 }
5712 81f1af42bafc 6628232 zfs snapshot -r is very slow, causes systemic slowdown ahrens parents: 5569 diff changeset	198 ASSERT3U(ds->ds_prev->ds_object, ==,
81f1af42bafc 6628232 zfs snapshot -r is very slow, causes systemic slowdown ahrens parents: 5569 diff changeset	199 ds->ds_phys->ds_prev_snap_obj);
81f1af42bafc 6628232 zfs snapshot -r is very slow, causes systemic slowdown ahrens parents: 5569 diff changeset	200 ASSERT(ds->ds_prev->ds_phys->ds_num_children > 0);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	201 /* if (bp->blk_birth > prev prev snap txg) prev unique += bs */
5712 81f1af42bafc 6628232 zfs snapshot -r is very slow, causes systemic slowdown ahrens parents: 5569 diff changeset	202 if (ds->ds_prev->ds_phys->ds_next_snap_obj ==
81f1af42bafc 6628232 zfs snapshot -r is very slow, causes systemic slowdown ahrens parents: 5569 diff changeset	203 ds->ds_object && bp->blk_birth >
81f1af42bafc 6628232 zfs snapshot -r is very slow, causes systemic slowdown ahrens parents: 5569 diff changeset	204 ds->ds_prev->ds_phys->ds_prev_snap_txg) {
81f1af42bafc 6628232 zfs snapshot -r is very slow, causes systemic slowdown ahrens parents: 5569 diff changeset	205 dmu_buf_will_dirty(ds->ds_prev->ds_dbuf, tx);
81f1af42bafc 6628232 zfs snapshot -r is very slow, causes systemic slowdown ahrens parents: 5569 diff changeset	206 mutex_enter(&ds->ds_prev->ds_lock);
81f1af42bafc 6628232 zfs snapshot -r is very slow, causes systemic slowdown ahrens parents: 5569 diff changeset	207 ds->ds_prev->ds_phys->ds_unique_bytes += used;
81f1af42bafc 6628232 zfs snapshot -r is very slow, causes systemic slowdown ahrens parents: 5569 diff changeset	208 mutex_exit(&ds->ds_prev->ds_lock);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	209 }
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	210 if (bp->blk_birth > ds->ds_dir->dd_origin_txg) {
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	211 dsl_dir_transfer_space(ds->ds_dir, used,
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	212 DD_USED_HEAD, DD_USED_SNAP, tx);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	213 }
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	214 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	215 mutex_enter(&ds->ds_lock);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	216 ASSERT3U(ds->ds_phys->ds_used_bytes, >=, used);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	217 ds->ds_phys->ds_used_bytes -= used;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	218 ASSERT3U(ds->ds_phys->ds_compressed_bytes, >=, compressed);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	219 ds->ds_phys->ds_compressed_bytes -= compressed;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	220 ASSERT3U(ds->ds_phys->ds_uncompressed_bytes, >=, uncompressed);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	221 ds->ds_phys->ds_uncompressed_bytes -= uncompressed;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	222 mutex_exit(&ds->ds_lock);
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 6975 diff changeset	223
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 6975 diff changeset	224 return (used);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	225 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	226
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	227 uint64_t
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	228 dsl_dataset_prev_snap_txg(dsl_dataset_t *ds)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	229 {
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	230 uint64_t trysnap = 0;
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	231
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	232 if (ds == NULL)
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	233 return (0);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	234 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	235 * The snapshot creation could fail, but that would cause an
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	236 * incorrect FALSE return, which would only result in an
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	237 * overestimation of the amount of space that an operation would
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	238 * consume, which is OK.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	239 *
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	240 * There's also a small window where we could miss a pending
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	241 * snapshot, because we could set the sync task in the quiescing
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	242 * phase. So this should only be used as a guess.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	243 */
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	244 if (ds->ds_trysnap_txg >
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	245 spa_last_synced_txg(ds->ds_dir->dd_pool->dp_spa))
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	246 trysnap = ds->ds_trysnap_txg;
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	247 return (MAX(ds->ds_phys->ds_prev_snap_txg, trysnap));
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	248 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	249
9653 a70048a304d1 6664765 Unable to remove files when using fat-zap and quota exceeded on ZFS filesystem Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM> parents: 9396 diff changeset	250 boolean_t
12450 c77e20e4e046 6938089 dedup-induced latency causes FC initiator logouts/FC port resets George Wilson <George.Wilson@Sun.COM> parents: 12296 diff changeset	251 dsl_dataset_block_freeable(dsl_dataset_t ds, const blkptr_t bp,
c77e20e4e046 6938089 dedup-induced latency causes FC initiator logouts/FC port resets George Wilson <George.Wilson@Sun.COM> parents: 12296 diff changeset	252 uint64_t blk_birth)
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	253 {
12450 c77e20e4e046 6938089 dedup-induced latency causes FC initiator logouts/FC port resets George Wilson <George.Wilson@Sun.COM> parents: 12296 diff changeset	254 if (blk_birth <= dsl_dataset_prev_snap_txg(ds))
c77e20e4e046 6938089 dedup-induced latency causes FC initiator logouts/FC port resets George Wilson <George.Wilson@Sun.COM> parents: 12296 diff changeset	255 return (B_FALSE);
c77e20e4e046 6938089 dedup-induced latency causes FC initiator logouts/FC port resets George Wilson <George.Wilson@Sun.COM> parents: 12296 diff changeset	256
c77e20e4e046 6938089 dedup-induced latency causes FC initiator logouts/FC port resets George Wilson <George.Wilson@Sun.COM> parents: 12296 diff changeset	257 if (zfs_dedup_prefetch && bp && BP_GET_DEDUP(bp))
c77e20e4e046 6938089 dedup-induced latency causes FC initiator logouts/FC port resets George Wilson <George.Wilson@Sun.COM> parents: 12296 diff changeset	258 ddt_prefetch(dsl_dataset_get_spa(ds), bp);
c77e20e4e046 6938089 dedup-induced latency causes FC initiator logouts/FC port resets George Wilson <George.Wilson@Sun.COM> parents: 12296 diff changeset	259
c77e20e4e046 6938089 dedup-induced latency causes FC initiator logouts/FC port resets George Wilson <George.Wilson@Sun.COM> parents: 12296 diff changeset	260 return (B_TRUE);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	261 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	262
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	263 /* ARGSUSED */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	264 static void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	265 dsl_dataset_evict(dmu_buf_t db, void dsv)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	266 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	267 dsl_dataset_t *ds = dsv;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	268
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	269 ASSERT(ds->ds_owner == NULL \|\| DSL_DATASET_IS_DESTROYED(ds));
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	270
4787 602d3f97842c 6393351 unique_* could be improved ahrens parents: 4603 diff changeset	271 unique_remove(ds->ds_fsid_guid);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	272
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	273 if (ds->ds_objset != NULL)
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	274 dmu_objset_evict(ds->ds_objset);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	275
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	276 if (ds->ds_prev) {
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	277 dsl_dataset_drop_ref(ds->ds_prev, ds);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	278 ds->ds_prev = NULL;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	279 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	280
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	281 bplist_destroy(&ds->ds_pending_deadlist);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	282 if (db != NULL) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	283 dsl_deadlist_close(&ds->ds_deadlist);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	284 } else {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	285 ASSERT(ds->ds_deadlist.dl_dbuf == NULL);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	286 ASSERT(!ds->ds_deadlist.dl_oldfmt);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	287 }
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	288 if (ds->ds_dir)
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	289 dsl_dir_close(ds->ds_dir, ds);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	290
4787 602d3f97842c 6393351 unique_* could be improved ahrens parents: 4603 diff changeset	291 ASSERT(!list_link_active(&ds->ds_synced_link));
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	292
2856 6f4d5ee1906a 6463348 ZFS code could be more portable nd150628 parents: 2532 diff changeset	293 mutex_destroy(&ds->ds_lock);
10204 83c3a84aecef 6760420 zfs unmount -f causes recv to fail Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10002 diff changeset	294 mutex_destroy(&ds->ds_recvlock);
4787 602d3f97842c 6393351 unique_* could be improved ahrens parents: 4603 diff changeset	295 mutex_destroy(&ds->ds_opening_lock);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	296 rw_destroy(&ds->ds_rwlock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	297 cv_destroy(&ds->ds_exclusive_cv);
2856 6f4d5ee1906a 6463348 ZFS code could be more portable nd150628 parents: 2532 diff changeset	298
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	299 kmem_free(ds, sizeof (dsl_dataset_t));
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	300 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	301
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	302 static int
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	303 dsl_dataset_get_snapname(dsl_dataset_t *ds)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	304 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	305 dsl_dataset_phys_t *headphys;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	306 int err;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	307 dmu_buf_t *headdbuf;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	308 dsl_pool_t *dp = ds->ds_dir->dd_pool;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	309 objset_t *mos = dp->dp_meta_objset;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	310
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	311 if (ds->ds_snapname[0])
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	312 return (0);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	313 if (ds->ds_phys->ds_next_snap_obj == 0)
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	314 return (0);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	315
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	316 err = dmu_bonus_hold(mos, ds->ds_dir->dd_phys->dd_head_dataset_obj,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	317 FTAG, &headdbuf);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	318 if (err)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	319 return (err);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	320 headphys = headdbuf->db_data;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	321 err = zap_value_search(dp->dp_meta_objset,
4577 ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4569 diff changeset	322 headphys->ds_snapnames_zapobj, ds->ds_object, 0, ds->ds_snapname);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	323 dmu_buf_rele(headdbuf, FTAG);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	324 return (err);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	325 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	326
6492 903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	327 static int
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	328 dsl_dataset_snap_lookup(dsl_dataset_t ds, const char name, uint64_t *value)
6492 903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	329 {
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	330 objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	331 uint64_t snapobj = ds->ds_phys->ds_snapnames_zapobj;
6492 903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	332 matchtype_t mt;
903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	333 int err;
903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	334
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	335 if (ds->ds_phys->ds_flags & DS_FLAG_CI_DATASET)
6492 903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	336 mt = MT_FIRST;
903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	337 else
903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	338 mt = MT_EXACT;
903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	339
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	340 err = zap_lookup_norm(mos, snapobj, name, 8, 1,
6492 903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	341 value, mt, NULL, 0, NULL);
903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	342 if (err == ENOTSUP && mt == MT_FIRST)
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	343 err = zap_lookup(mos, snapobj, name, 8, 1, value);
6492 903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	344 return (err);
903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	345 }
903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	346
903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	347 static int
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	348 dsl_dataset_snap_remove(dsl_dataset_t ds, char name, dmu_tx_t *tx)
6492 903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	349 {
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	350 objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	351 uint64_t snapobj = ds->ds_phys->ds_snapnames_zapobj;
6492 903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	352 matchtype_t mt;
903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	353 int err;
903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	354
10373 bcf97ee54990 6395956 snapshot dir needs real c/mtime Chris Kirby <chris.kirby@sun.com> parents: 10342 diff changeset	355 dsl_dir_snap_cmtime_update(ds->ds_dir);
bcf97ee54990 6395956 snapshot dir needs real c/mtime Chris Kirby <chris.kirby@sun.com> parents: 10342 diff changeset	356
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	357 if (ds->ds_phys->ds_flags & DS_FLAG_CI_DATASET)
6492 903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	358 mt = MT_FIRST;
903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	359 else
903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	360 mt = MT_EXACT;
903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	361
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	362 err = zap_remove_norm(mos, snapobj, name, mt, tx);
6492 903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	363 if (err == ENOTSUP && mt == MT_FIRST)
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	364 err = zap_remove(mos, snapobj, name, tx);
6492 903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	365 return (err);
903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	366 }
903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	367
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	368 static int
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	369 dsl_dataset_get_ref(dsl_pool_t dp, uint64_t dsobj, void tag,
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	370 dsl_dataset_t **dsp)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	371 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	372 objset_t *mos = dp->dp_meta_objset;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	373 dmu_buf_t *dbuf;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	374 dsl_dataset_t *ds;
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	375 int err;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	376
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	377 ASSERT(RW_LOCK_HELD(&dp->dp_config_rwlock) \|\|
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	378 dsl_pool_sync_context(dp));
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	379
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	380 err = dmu_bonus_hold(mos, dsobj, tag, &dbuf);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	381 if (err)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	382 return (err);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	383 ds = dmu_buf_get_user(dbuf);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	384 if (ds == NULL) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	385 dsl_dataset_t *winner;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	386
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	387 ds = kmem_zalloc(sizeof (dsl_dataset_t), KM_SLEEP);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	388 ds->ds_dbuf = dbuf;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	389 ds->ds_object = dsobj;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	390 ds->ds_phys = dbuf->db_data;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	391
2856 6f4d5ee1906a 6463348 ZFS code could be more portable nd150628 parents: 2532 diff changeset	392 mutex_init(&ds->ds_lock, NULL, MUTEX_DEFAULT, NULL);
10204 83c3a84aecef 6760420 zfs unmount -f causes recv to fail Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10002 diff changeset	393 mutex_init(&ds->ds_recvlock, NULL, MUTEX_DEFAULT, NULL);
4787 602d3f97842c 6393351 unique_* could be improved ahrens parents: 4603 diff changeset	394 mutex_init(&ds->ds_opening_lock, NULL, MUTEX_DEFAULT, NULL);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	395 rw_init(&ds->ds_rwlock, 0, 0, 0);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	396 cv_init(&ds->ds_exclusive_cv, NULL, CV_DEFAULT, NULL);
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	397
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	398 bplist_create(&ds->ds_pending_deadlist);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	399 dsl_deadlist_open(&ds->ds_deadlist,
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	400 mos, ds->ds_phys->ds_deadlist_obj);
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	401
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	402 if (err == 0) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	403 err = dsl_dir_open_obj(dp,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	404 ds->ds_phys->ds_dir_obj, NULL, ds, &ds->ds_dir);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	405 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	406 if (err) {
2856 6f4d5ee1906a 6463348 ZFS code could be more portable nd150628 parents: 2532 diff changeset	407 mutex_destroy(&ds->ds_lock);
10204 83c3a84aecef 6760420 zfs unmount -f causes recv to fail Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10002 diff changeset	408 mutex_destroy(&ds->ds_recvlock);
4787 602d3f97842c 6393351 unique_* could be improved ahrens parents: 4603 diff changeset	409 mutex_destroy(&ds->ds_opening_lock);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	410 rw_destroy(&ds->ds_rwlock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	411 cv_destroy(&ds->ds_exclusive_cv);
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	412 bplist_destroy(&ds->ds_pending_deadlist);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	413 dsl_deadlist_close(&ds->ds_deadlist);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	414 kmem_free(ds, sizeof (dsl_dataset_t));
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	415 dmu_buf_rele(dbuf, tag);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	416 return (err);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	417 }
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	418
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	419 if (!dsl_dataset_is_snapshot(ds)) {
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	420 ds->ds_snapname[0] = '\0';
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	421 if (ds->ds_phys->ds_prev_snap_obj) {
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	422 err = dsl_dataset_get_ref(dp,
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	423 ds->ds_phys->ds_prev_snap_obj,
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	424 ds, &ds->ds_prev);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	425 }
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	426 } else {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	427 if (zfs_flags & ZFS_DEBUG_SNAPNAMES)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	428 err = dsl_dataset_get_snapname(ds);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	429 if (err == 0 && ds->ds_phys->ds_userrefs_obj != 0) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	430 err = zap_count(
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	431 ds->ds_dir->dd_pool->dp_meta_objset,
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	432 ds->ds_phys->ds_userrefs_obj,
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	433 &ds->ds_userrefs);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	434 }
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	435 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	436
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	437 if (err == 0 && !dsl_dataset_is_snapshot(ds)) {
5569 d3caac36d311 6634062 dsl_dataset_open_obj misuses RW_LOCK_HELD ck153898 parents: 5518 diff changeset	438 /*
d3caac36d311 6634062 dsl_dataset_open_obj misuses RW_LOCK_HELD ck153898 parents: 5518 diff changeset	439 * In sync context, we're called with either no lock
d3caac36d311 6634062 dsl_dataset_open_obj misuses RW_LOCK_HELD ck153898 parents: 5518 diff changeset	440 * or with the write lock. If we're not syncing,
d3caac36d311 6634062 dsl_dataset_open_obj misuses RW_LOCK_HELD ck153898 parents: 5518 diff changeset	441 * we're always called with the read lock held.
d3caac36d311 6634062 dsl_dataset_open_obj misuses RW_LOCK_HELD ck153898 parents: 5518 diff changeset	442 */
5475 e140313199cc 6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d ck153898 parents: 5446 diff changeset	443 boolean_t need_lock =
5569 d3caac36d311 6634062 dsl_dataset_open_obj misuses RW_LOCK_HELD ck153898 parents: 5518 diff changeset	444 !RW_WRITE_HELD(&dp->dp_config_rwlock) &&
d3caac36d311 6634062 dsl_dataset_open_obj misuses RW_LOCK_HELD ck153898 parents: 5518 diff changeset	445 dsl_pool_sync_context(dp);
5475 e140313199cc 6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d ck153898 parents: 5446 diff changeset	446
e140313199cc 6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d ck153898 parents: 5446 diff changeset	447 if (need_lock)
e140313199cc 6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d ck153898 parents: 5446 diff changeset	448 rw_enter(&dp->dp_config_rwlock, RW_READER);
e140313199cc 6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d ck153898 parents: 5446 diff changeset	449
7265 cc18862247da PSARC/2008/483 ZFS clone -o ahrens parents: 7237 diff changeset	450 err = dsl_prop_get_ds(ds,
5475 e140313199cc 6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d ck153898 parents: 5446 diff changeset	451 "refreservation", sizeof (uint64_t), 1,
e140313199cc 6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d ck153898 parents: 5446 diff changeset	452 &ds->ds_reserved, NULL);
e140313199cc 6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d ck153898 parents: 5446 diff changeset	453 if (err == 0) {
7265 cc18862247da PSARC/2008/483 ZFS clone -o ahrens parents: 7237 diff changeset	454 err = dsl_prop_get_ds(ds,
5475 e140313199cc 6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d ck153898 parents: 5446 diff changeset	455 "refquota", sizeof (uint64_t), 1,
e140313199cc 6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d ck153898 parents: 5446 diff changeset	456 &ds->ds_quota, NULL);
e140313199cc 6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d ck153898 parents: 5446 diff changeset	457 }
e140313199cc 6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d ck153898 parents: 5446 diff changeset	458
e140313199cc 6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d ck153898 parents: 5446 diff changeset	459 if (need_lock)
e140313199cc 6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d ck153898 parents: 5446 diff changeset	460 rw_exit(&dp->dp_config_rwlock);
e140313199cc 6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d ck153898 parents: 5446 diff changeset	461 } else {
e140313199cc 6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d ck153898 parents: 5446 diff changeset	462 ds->ds_reserved = ds->ds_quota = 0;
e140313199cc 6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d ck153898 parents: 5446 diff changeset	463 }
e140313199cc 6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d ck153898 parents: 5446 diff changeset	464
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	465 if (err == 0) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	466 winner = dmu_buf_set_user_ie(dbuf, ds, &ds->ds_phys,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	467 dsl_dataset_evict);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	468 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	469 if (err \|\| winner) {
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	470 bplist_destroy(&ds->ds_pending_deadlist);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	471 dsl_deadlist_close(&ds->ds_deadlist);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	472 if (ds->ds_prev)
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	473 dsl_dataset_drop_ref(ds->ds_prev, ds);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	474 dsl_dir_close(ds->ds_dir, ds);
2856 6f4d5ee1906a 6463348 ZFS code could be more portable nd150628 parents: 2532 diff changeset	475 mutex_destroy(&ds->ds_lock);
10204 83c3a84aecef 6760420 zfs unmount -f causes recv to fail Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10002 diff changeset	476 mutex_destroy(&ds->ds_recvlock);
4787 602d3f97842c 6393351 unique_* could be improved ahrens parents: 4603 diff changeset	477 mutex_destroy(&ds->ds_opening_lock);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	478 rw_destroy(&ds->ds_rwlock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	479 cv_destroy(&ds->ds_exclusive_cv);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	480 kmem_free(ds, sizeof (dsl_dataset_t));
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	481 if (err) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	482 dmu_buf_rele(dbuf, tag);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	483 return (err);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	484 }
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	485 ds = winner;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	486 } else {
4787 602d3f97842c 6393351 unique_* could be improved ahrens parents: 4603 diff changeset	487 ds->ds_fsid_guid =
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	488 unique_insert(ds->ds_phys->ds_fsid_guid);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	489 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	490 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	491 ASSERT3P(ds->ds_dbuf, ==, dbuf);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	492 ASSERT3P(ds->ds_phys, ==, dbuf->db_data);
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	493 ASSERT(ds->ds_phys->ds_prev_snap_obj != 0 \|\|
7061 524fec1acf1c 6723703 zpool upgrade -> assertion failed: ds->ds_phys->ds_prev_snap_obj != 0 \|\| ... ahrens parents: 7046 diff changeset	494 spa_version(dp->dp_spa) < SPA_VERSION_ORIGIN \|\|
7077 a63bdc0b8352 6724675 assertion failed in dsl_dataset_get_ref(): ds->ds_phys->ds_prev_snap_obj != 0 ... ahrens parents: 7061 diff changeset	495 dp->dp_origin_snap == NULL \|\| ds == dp->dp_origin_snap);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	496 mutex_enter(&ds->ds_lock);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	497 if (!dsl_pool_sync_context(dp) && DSL_DATASET_IS_DESTROYED(ds)) {
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	498 mutex_exit(&ds->ds_lock);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	499 dmu_buf_rele(ds->ds_dbuf, tag);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	500 return (ENOENT);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	501 }
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	502 mutex_exit(&ds->ds_lock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	503 *dsp = ds;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	504 return (0);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	505 }
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	506
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	507 static int
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	508 dsl_dataset_hold_ref(dsl_dataset_t ds, void tag)
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	509 {
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	510 dsl_pool_t *dp = ds->ds_dir->dd_pool;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	511
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	512 /*
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	513 * In syncing context we don't want the rwlock lock: there
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	514 * may be an existing writer waiting for sync phase to
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	515 * finish. We don't need to worry about such writers, since
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	516 * sync phase is single-threaded, so the writer can't be
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	517 * doing anything while we are active.
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	518 */
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	519 if (dsl_pool_sync_context(dp)) {
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	520 ASSERT(!DSL_DATASET_IS_DESTROYED(ds));
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	521 return (0);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	522 }
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	523
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	524 /*
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	525 * Normal users will hold the ds_rwlock as a READER until they
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	526 * are finished (i.e., call dsl_dataset_rele()). "Owners" will
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	527 * drop their READER lock after they set the ds_owner field.
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	528 *
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	529 * If the dataset is being destroyed, the destroy thread will
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	530 * obtain a WRITER lock for exclusive access after it's done its
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	531 * open-context work and then change the ds_owner to
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	532 * dsl_reaper once destruction is assured. So threads
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	533 * may block here temporarily, until the "destructability" of
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	534 * the dataset is determined.
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	535 */
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	536 ASSERT(!RW_WRITE_HELD(&dp->dp_config_rwlock));
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	537 mutex_enter(&ds->ds_lock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	538 while (!rw_tryenter(&ds->ds_rwlock, RW_READER)) {
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	539 rw_exit(&dp->dp_config_rwlock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	540 cv_wait(&ds->ds_exclusive_cv, &ds->ds_lock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	541 if (DSL_DATASET_IS_DESTROYED(ds)) {
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	542 mutex_exit(&ds->ds_lock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	543 dsl_dataset_drop_ref(ds, tag);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	544 rw_enter(&dp->dp_config_rwlock, RW_READER);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	545 return (ENOENT);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	546 }
11546 42ea6be8961b 6915111 zfs_iter_snapshots() can miss snapshots Chris Kirby <Chris.Kirby@sun.com> parents: 11209 diff changeset	547 /*
42ea6be8961b 6915111 zfs_iter_snapshots() can miss snapshots Chris Kirby <Chris.Kirby@sun.com> parents: 11209 diff changeset	548 * The dp_config_rwlock lives above the ds_lock. And
42ea6be8961b 6915111 zfs_iter_snapshots() can miss snapshots Chris Kirby <Chris.Kirby@sun.com> parents: 11209 diff changeset	549 * we need to check DSL_DATASET_IS_DESTROYED() while
42ea6be8961b 6915111 zfs_iter_snapshots() can miss snapshots Chris Kirby <Chris.Kirby@sun.com> parents: 11209 diff changeset	550 * holding the ds_lock, so we have to drop and reacquire
42ea6be8961b 6915111 zfs_iter_snapshots() can miss snapshots Chris Kirby <Chris.Kirby@sun.com> parents: 11209 diff changeset	551 * the ds_lock here.
42ea6be8961b 6915111 zfs_iter_snapshots() can miss snapshots Chris Kirby <Chris.Kirby@sun.com> parents: 11209 diff changeset	552 */
42ea6be8961b 6915111 zfs_iter_snapshots() can miss snapshots Chris Kirby <Chris.Kirby@sun.com> parents: 11209 diff changeset	553 mutex_exit(&ds->ds_lock);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	554 rw_enter(&dp->dp_config_rwlock, RW_READER);
11546 42ea6be8961b 6915111 zfs_iter_snapshots() can miss snapshots Chris Kirby <Chris.Kirby@sun.com> parents: 11209 diff changeset	555 mutex_enter(&ds->ds_lock);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	556 }
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	557 mutex_exit(&ds->ds_lock);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	558 return (0);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	559 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	560
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	561 int
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	562 dsl_dataset_hold_obj(dsl_pool_t dp, uint64_t dsobj, void tag,
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	563 dsl_dataset_t **dsp)
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	564 {
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	565 int err = dsl_dataset_get_ref(dp, dsobj, tag, dsp);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	566
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	567 if (err)
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	568 return (err);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	569 return (dsl_dataset_hold_ref(*dsp, tag));
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	570 }
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	571
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	572 int
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	573 dsl_dataset_own_obj(dsl_pool_t *dp, uint64_t dsobj, boolean_t inconsistentok,
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	574 void tag, dsl_dataset_t *dsp)
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	575 {
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	576 int err = dsl_dataset_hold_obj(dp, dsobj, tag, dsp);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	577 if (err)
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	578 return (err);
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	579 if (!dsl_dataset_tryown(*dsp, inconsistentok, tag)) {
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	580 dsl_dataset_rele(*dsp, tag);
8779 f164e0e90508 6784924 panic while ludelete (zfs destroy) Mark J Musante <Mark.Musante@Sun.COM> parents: 8746 diff changeset	581 *dsp = NULL;
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	582 return (EBUSY);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	583 }
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	584 return (0);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	585 }
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	586
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	587 int
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	588 dsl_dataset_hold(const char name, void tag, dsl_dataset_t **dsp)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	589 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	590 dsl_dir_t *dd;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	591 dsl_pool_t *dp;
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	592 const char *snapname;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	593 uint64_t obj;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	594 int err = 0;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	595
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	596 err = dsl_dir_open_spa(NULL, name, FTAG, &dd, &snapname);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	597 if (err)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	598 return (err);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	599
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	600 dp = dd->dd_pool;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	601 obj = dd->dd_phys->dd_head_dataset_obj;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	602 rw_enter(&dp->dp_config_rwlock, RW_READER);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	603 if (obj)
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	604 err = dsl_dataset_get_ref(dp, obj, tag, dsp);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	605 else
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	606 err = ENOENT;
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	607 if (err)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	608 goto out;
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	609
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	610 err = dsl_dataset_hold_ref(*dsp, tag);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	611
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	612 /* we may be looking for a snapshot */
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	613 if (err == 0 && snapname != NULL) {
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	614 dsl_dataset_t *ds = NULL;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	615
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	616 if (*snapname++ != '@') {
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	617 dsl_dataset_rele(*dsp, tag);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	618 err = ENOENT;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	619 goto out;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	620 }
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	621
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	622 dprintf("looking for snapshot '%s'\n", snapname);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	623 err = dsl_dataset_snap_lookup(*dsp, snapname, &obj);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	624 if (err == 0)
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	625 err = dsl_dataset_get_ref(dp, obj, tag, &ds);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	626 dsl_dataset_rele(*dsp, tag);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	627
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	628 ASSERT3U((err == 0), ==, (ds != NULL));
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	629
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	630 if (ds) {
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	631 mutex_enter(&ds->ds_lock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	632 if (ds->ds_snapname[0] == 0)
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	633 (void) strlcpy(ds->ds_snapname, snapname,
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	634 sizeof (ds->ds_snapname));
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	635 mutex_exit(&ds->ds_lock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	636 err = dsl_dataset_hold_ref(ds, tag);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	637 *dsp = err ? NULL : ds;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	638 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	639 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	640 out:
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	641 rw_exit(&dp->dp_config_rwlock);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	642 dsl_dir_close(dd, FTAG);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	643 return (err);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	644 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	645
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	646 int
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	647 dsl_dataset_own(const char *name, boolean_t inconsistentok,
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	648 void tag, dsl_dataset_t *dsp)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	649 {
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	650 int err = dsl_dataset_hold(name, tag, dsp);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	651 if (err)
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	652 return (err);
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	653 if (!dsl_dataset_tryown(*dsp, inconsistentok, tag)) {
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	654 dsl_dataset_rele(*dsp, tag);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	655 return (EBUSY);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	656 }
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	657 return (0);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	658 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	659
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	660 void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	661 dsl_dataset_name(dsl_dataset_t ds, char name)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	662 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	663 if (ds == NULL) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	664 (void) strcpy(name, "mos");
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	665 } else {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	666 dsl_dir_name(ds->ds_dir, name);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	667 VERIFY(0 == dsl_dataset_get_snapname(ds));
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	668 if (ds->ds_snapname[0]) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	669 (void) strcat(name, "@");
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	670 /*
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	671 * We use a "recursive" mutex so that we
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	672 * can call dprintf_ds() with ds_lock held.
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	673 */
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	674 if (!MUTEX_HELD(&ds->ds_lock)) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	675 mutex_enter(&ds->ds_lock);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	676 (void) strcat(name, ds->ds_snapname);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	677 mutex_exit(&ds->ds_lock);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	678 } else {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	679 (void) strcat(name, ds->ds_snapname);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	680 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	681 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	682 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	683 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	684
3978 2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	685 static int
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	686 dsl_dataset_namelen(dsl_dataset_t *ds)
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	687 {
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	688 int result;
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	689
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	690 if (ds == NULL) {
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	691 result = 3; /* "mos" */
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	692 } else {
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	693 result = dsl_dir_namelen(ds->ds_dir);
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	694 VERIFY(0 == dsl_dataset_get_snapname(ds));
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	695 if (ds->ds_snapname[0]) {
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	696 ++result; /* adding one for the @-sign */
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	697 if (!MUTEX_HELD(&ds->ds_lock)) {
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	698 mutex_enter(&ds->ds_lock);
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	699 result += strlen(ds->ds_snapname);
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	700 mutex_exit(&ds->ds_lock);
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	701 } else {
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	702 result += strlen(ds->ds_snapname);
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	703 }
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	704 }
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	705 }
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	706
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	707 return (result);
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	708 }
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	709
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	710 void
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	711 dsl_dataset_drop_ref(dsl_dataset_t ds, void tag)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	712 {
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	713 dmu_buf_rele(ds->ds_dbuf, tag);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	714 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	715
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	716 void
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	717 dsl_dataset_rele(dsl_dataset_t ds, void tag)
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	718 {
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	719 if (!dsl_pool_sync_context(ds->ds_dir->dd_pool)) {
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	720 rw_exit(&ds->ds_rwlock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	721 }
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	722 dsl_dataset_drop_ref(ds, tag);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	723 }
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	724
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	725 void
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	726 dsl_dataset_disown(dsl_dataset_t ds, void tag)
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	727 {
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	728 ASSERT((ds->ds_owner == tag && ds->ds_dbuf) \|\|
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	729 (DSL_DATASET_IS_DESTROYED(ds) && ds->ds_dbuf == NULL));
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	730
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	731 mutex_enter(&ds->ds_lock);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	732 ds->ds_owner = NULL;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	733 if (RW_WRITE_HELD(&ds->ds_rwlock)) {
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	734 rw_exit(&ds->ds_rwlock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	735 cv_broadcast(&ds->ds_exclusive_cv);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	736 }
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	737 mutex_exit(&ds->ds_lock);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	738 if (ds->ds_dbuf)
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	739 dsl_dataset_drop_ref(ds, tag);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	740 else
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	741 dsl_dataset_evict(NULL, ds);
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	742 }
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	743
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	744 boolean_t
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	745 dsl_dataset_tryown(dsl_dataset_t ds, boolean_t inconsistentok, void tag)
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	746 {
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	747 boolean_t gotit = FALSE;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	748
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	749 mutex_enter(&ds->ds_lock);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	750 if (ds->ds_owner == NULL &&
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	751 (!DS_IS_INCONSISTENT(ds) \|\| inconsistentok)) {
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	752 ds->ds_owner = tag;
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	753 if (!dsl_pool_sync_context(ds->ds_dir->dd_pool))
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	754 rw_exit(&ds->ds_rwlock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	755 gotit = TRUE;
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	756 }
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	757 mutex_exit(&ds->ds_lock);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	758 return (gotit);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	759 }
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	760
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	761 void
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	762 dsl_dataset_make_exclusive(dsl_dataset_t ds, void owner)
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	763 {
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	764 ASSERT3P(owner, ==, ds->ds_owner);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	765 if (!RW_WRITE_HELD(&ds->ds_rwlock))
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	766 rw_enter(&ds->ds_rwlock, RW_WRITER);
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	767 }
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	768
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	769 uint64_t
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	770 dsl_dataset_create_sync_dd(dsl_dir_t dd, dsl_dataset_t origin,
6492 903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	771 uint64_t flags, dmu_tx_t *tx)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	772 {
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	773 dsl_pool_t *dp = dd->dd_pool;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	774 dmu_buf_t *dbuf;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	775 dsl_dataset_phys_t *dsphys;
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	776 uint64_t dsobj;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	777 objset_t *mos = dp->dp_meta_objset;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	778
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	779 if (origin == NULL)
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	780 origin = dp->dp_origin_snap;
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	781
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	782 ASSERT(origin == NULL \|\| origin->ds_dir->dd_pool == dp);
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	783 ASSERT(origin == NULL \|\| origin->ds_phys->ds_num_children > 0);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	784 ASSERT(dmu_tx_is_syncing(tx));
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	785 ASSERT(dd->dd_phys->dd_head_dataset_obj == 0);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	786
928 36d72fe4da29 6349314 dmu_object_type names incorrect for DSL Directories and DSL Datasets tabriz parents: 885 diff changeset	787 dsobj = dmu_object_alloc(mos, DMU_OT_DSL_DATASET, 0,
36d72fe4da29 6349314 dmu_object_type names incorrect for DSL Directories and DSL Datasets tabriz parents: 885 diff changeset	788 DMU_OT_DSL_DATASET, sizeof (dsl_dataset_phys_t), tx);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	789 VERIFY(0 == dmu_bonus_hold(mos, dsobj, FTAG, &dbuf));
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	790 dmu_buf_will_dirty(dbuf, tx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	791 dsphys = dbuf->db_data;
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	792 bzero(dsphys, sizeof (dsl_dataset_phys_t));
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	793 dsphys->ds_dir_obj = dd->dd_object;
6492 903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	794 dsphys->ds_flags = flags;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	795 dsphys->ds_fsid_guid = unique_create();
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	796 (void) random_get_pseudo_bytes((void*)&dsphys->ds_guid,
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	797 sizeof (dsphys->ds_guid));
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	798 dsphys->ds_snapnames_zapobj =
6492 903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	799 zap_create_norm(mos, U8_TEXTPREP_TOUPPER, DMU_OT_DSL_DS_SNAP_MAP,
903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	800 DMU_OT_NONE, 0, tx);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	801 dsphys->ds_creation_time = gethrestime_sec();
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	802 dsphys->ds_creation_txg = tx->tx_txg == TXG_INITIAL ? 1 : tx->tx_txg;
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	803
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	804 if (origin == NULL) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	805 dsphys->ds_deadlist_obj = dsl_deadlist_alloc(mos, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	806 } else {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	807 dsl_dataset_t *ohds;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	808
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	809 dsphys->ds_prev_snap_obj = origin->ds_object;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	810 dsphys->ds_prev_snap_txg =
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	811 origin->ds_phys->ds_creation_txg;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	812 dsphys->ds_used_bytes =
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	813 origin->ds_phys->ds_used_bytes;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	814 dsphys->ds_compressed_bytes =
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	815 origin->ds_phys->ds_compressed_bytes;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	816 dsphys->ds_uncompressed_bytes =
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	817 origin->ds_phys->ds_uncompressed_bytes;
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	818 dsphys->ds_bp = origin->ds_phys->ds_bp;
6502 66aef5f20377 6694731 drc->drc_real_ds->ds_phys->ds_flags & (1ULL<<0), file: ../../common/fs/zfs/dmu_send.c, line: 1069 timh parents: 6492 diff changeset	819 dsphys->ds_flags \|= origin->ds_phys->ds_flags;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	820
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	821 dmu_buf_will_dirty(origin->ds_dbuf, tx);
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	822 origin->ds_phys->ds_num_children++;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	823
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	824 VERIFY3U(0, ==, dsl_dataset_hold_obj(dp,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	825 origin->ds_dir->dd_phys->dd_head_dataset_obj, FTAG, &ohds));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	826 dsphys->ds_deadlist_obj = dsl_deadlist_clone(&ohds->ds_deadlist,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	827 dsphys->ds_prev_snap_txg, dsphys->ds_prev_snap_obj, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	828 dsl_dataset_rele(ohds, FTAG);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	829
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	830 if (spa_version(dp->dp_spa) >= SPA_VERSION_NEXT_CLONES) {
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	831 if (origin->ds_phys->ds_next_clones_obj == 0) {
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	832 origin->ds_phys->ds_next_clones_obj =
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	833 zap_create(mos,
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	834 DMU_OT_NEXT_CLONES, DMU_OT_NONE, 0, tx);
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	835 }
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	836 VERIFY(0 == zap_add_int(mos,
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	837 origin->ds_phys->ds_next_clones_obj,
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	838 dsobj, tx));
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	839 }
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	840
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	841 dmu_buf_will_dirty(dd->dd_dbuf, tx);
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	842 dd->dd_phys->dd_origin_obj = origin->ds_object;
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	843 if (spa_version(dp->dp_spa) >= SPA_VERSION_DIR_CLONES) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	844 if (origin->ds_dir->dd_phys->dd_clones == 0) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	845 dmu_buf_will_dirty(origin->ds_dir->dd_dbuf, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	846 origin->ds_dir->dd_phys->dd_clones =
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	847 zap_create(mos,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	848 DMU_OT_DSL_CLONES, DMU_OT_NONE, 0, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	849 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	850 VERIFY3U(0, ==, zap_add_int(mos,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	851 origin->ds_dir->dd_phys->dd_clones, dsobj, tx));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	852 }
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	853 }
6492 903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	854
903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	855 if (spa_version(dp->dp_spa) >= SPA_VERSION_UNIQUE_ACCURATE)
903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	856 dsphys->ds_flags \|= DS_FLAG_UNIQUE_ACCURATE;
903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	857
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	858 dmu_buf_rele(dbuf, FTAG);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	859
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	860 dmu_buf_will_dirty(dd->dd_dbuf, tx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	861 dd->dd_phys->dd_head_dataset_obj = dsobj;
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	862
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	863 return (dsobj);
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	864 }
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	865
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	866 uint64_t
6492 903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	867 dsl_dataset_create_sync(dsl_dir_t pdd, const char lastname,
903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	868 dsl_dataset_t origin, uint64_t flags, cred_t cr, dmu_tx_t *tx)
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	869 {
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	870 dsl_pool_t *dp = pdd->dd_pool;
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	871 uint64_t dsobj, ddobj;
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	872 dsl_dir_t *dd;
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	873
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	874 ASSERT(lastname[0] != '@');
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	875
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	876 ddobj = dsl_dir_create_sync(dp, pdd, lastname, tx);
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	877 VERIFY(0 == dsl_dir_open_obj(dp, ddobj, lastname, FTAG, &dd));
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	878
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	879 dsobj = dsl_dataset_create_sync_dd(dd, origin, flags, tx);
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	880
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	881 dsl_deleg_set_create_perms(dd, tx, cr);
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	882
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	883 dsl_dir_close(dd, FTAG);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	884
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	885 return (dsobj);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	886 }
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	887
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	888 struct destroyarg {
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	889 dsl_sync_task_group_t *dstg;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	890 char *snapname;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	891 char *failed;
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	892 boolean_t defer;
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	893 };
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	894
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	895 static int
11209 462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	896 dsl_snapshot_destroy_one(const char name, void arg)
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	897 {
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	898 struct destroyarg *da = arg;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	899 dsl_dataset_t *ds;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	900 int err;
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	901 char *dsname;
10272 a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	902
a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	903 dsname = kmem_asprintf("%s@%s", name, da->snapname);
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	904 err = dsl_dataset_own(dsname, B_TRUE, da->dstg, &ds);
10272 a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	905 strfree(dsname);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	906 if (err == 0) {
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	907 struct dsl_ds_destroyarg *dsda;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	908
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	909 dsl_dataset_make_exclusive(ds, da->dstg);
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	910 dsda = kmem_zalloc(sizeof (struct dsl_ds_destroyarg), KM_SLEEP);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	911 dsda->ds = ds;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	912 dsda->defer = da->defer;
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	913 dsl_sync_task_create(da->dstg, dsl_dataset_destroy_check,
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	914 dsl_dataset_destroy_sync, dsda, da->dstg, 0);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	915 } else if (err == ENOENT) {
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	916 err = 0;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	917 } else {
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	918 (void) strcpy(da->failed, name);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	919 }
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	920 return (err);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	921 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	922
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	923 /*
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	924 * Destroy 'snapname' in all descendants of 'fsname'.
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	925 */
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	926 #pragma weak dmu_snapshots_destroy = dsl_snapshots_destroy
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	927 int
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	928 dsl_snapshots_destroy(char fsname, char snapname, boolean_t defer)
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	929 {
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	930 int err;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	931 struct destroyarg da;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	932 dsl_sync_task_t *dst;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	933 spa_t *spa;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	934
4603 c7840c367d00 6494569 zfs recv -d pool/<doesn't exist> core dumps for top-level filesystem backups ahrens parents: 4577 diff changeset	935 err = spa_open(fsname, &spa, FTAG);
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	936 if (err)
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	937 return (err);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	938 da.dstg = dsl_sync_task_group_create(spa_get_dsl(spa));
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	939 da.snapname = snapname;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	940 da.failed = fsname;
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	941 da.defer = defer;
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	942
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	943 err = dmu_objset_find(fsname,
2417 694d5de97348 6444346 zfs promote fails in zone ahrens parents: 2207 diff changeset	944 dsl_snapshot_destroy_one, &da, DS_FIND_CHILDREN);
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	945
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	946 if (err == 0)
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	947 err = dsl_sync_task_group_wait(da.dstg);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	948
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	949 for (dst = list_head(&da.dstg->dstg_tasks); dst;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	950 dst = list_next(&da.dstg->dstg_tasks, dst)) {
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	951 struct dsl_ds_destroyarg *dsda = dst->dst_arg1;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	952 dsl_dataset_t *ds = dsda->ds;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	953
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	954 /*
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	955 * Return the file system name that triggered the error
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	956 */
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	957 if (dst->dst_err) {
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	958 dsl_dataset_name(ds, fsname);
4603 c7840c367d00 6494569 zfs recv -d pool/<doesn't exist> core dumps for top-level filesystem backups ahrens parents: 4577 diff changeset	959 *strchr(fsname, '@') = '\0';
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	960 }
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	961 ASSERT3P(dsda->rm_origin, ==, NULL);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	962 dsl_dataset_disown(ds, da.dstg);
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	963 kmem_free(dsda, sizeof (struct dsl_ds_destroyarg));
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	964 }
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	965
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	966 dsl_sync_task_group_destroy(da.dstg);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	967 spa_close(spa, FTAG);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	968 return (err);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	969 }
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	970
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	971 static boolean_t
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	972 dsl_dataset_might_destroy_origin(dsl_dataset_t *ds)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	973 {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	974 boolean_t might_destroy = B_FALSE;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	975
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	976 mutex_enter(&ds->ds_lock);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	977 if (ds->ds_phys->ds_num_children == 2 && ds->ds_userrefs == 0 &&
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	978 DS_IS_DEFER_DESTROY(ds))
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	979 might_destroy = B_TRUE;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	980 mutex_exit(&ds->ds_lock);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	981
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	982 return (might_destroy);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	983 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	984
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	985 /*
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	986 * If we're removing a clone, and these three conditions are true:
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	987 * 1) the clone's origin has no other children
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	988 * 2) the clone's origin has no user references
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	989 * 3) the clone's origin has been marked for deferred destruction
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	990 * Then, prepare to remove the origin as part of this sync task group.
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	991 */
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	992 static int
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	993 dsl_dataset_origin_rm_prep(struct dsl_ds_destroyarg dsda, void tag)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	994 {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	995 dsl_dataset_t *ds = dsda->ds;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	996 dsl_dataset_t *origin = ds->ds_prev;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	997
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	998 if (dsl_dataset_might_destroy_origin(origin)) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	999 char *name;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1000 int namelen;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1001 int error;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1002
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1003 namelen = dsl_dataset_namelen(origin) + 1;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1004 name = kmem_alloc(namelen, KM_SLEEP);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1005 dsl_dataset_name(origin, name);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1006 #ifdef _KERNEL
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1007 error = zfs_unmount_snap(name, NULL);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1008 if (error) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1009 kmem_free(name, namelen);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1010 return (error);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1011 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1012 #endif
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	1013 error = dsl_dataset_own(name, B_TRUE, tag, &origin);
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1014 kmem_free(name, namelen);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1015 if (error)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1016 return (error);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1017 dsda->rm_origin = origin;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1018 dsl_dataset_make_exclusive(origin, tag);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1019 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1020
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1021 return (0);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1022 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1023
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1024 /*
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1025 * ds must be opened as OWNER. On return (whether successful or not),
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1026 * ds will be closed and caller can no longer dereference it.
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1027 */
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1028 int
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1029 dsl_dataset_destroy(dsl_dataset_t ds, void tag, boolean_t defer)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1030 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1031 int err;
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1032 dsl_sync_task_group_t *dstg;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1033 objset_t *os;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1034 dsl_dir_t *dd;
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1035 uint64_t obj;
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	1036 struct dsl_ds_destroyarg dsda = { 0 };
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	1037 dsl_dataset_t dummy_ds = { 0 };
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1038
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1039 dsda.ds = ds;
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1040
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1041 if (dsl_dataset_is_snapshot(ds)) {
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1042 /* Destroying a snapshot is simpler */
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1043 dsl_dataset_make_exclusive(ds, tag);
7237 f47d41541b14 PSARC 2008/393 zfs primarycache and secondarycache properties ek110237 parents: 7077 diff changeset	1044
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1045 dsda.defer = defer;
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1046 err = dsl_sync_task_do(ds->ds_dir->dd_pool,
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1047 dsl_dataset_destroy_check, dsl_dataset_destroy_sync,
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1048 &dsda, tag, 0);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1049 ASSERT3P(dsda.rm_origin, ==, NULL);
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1050 goto out;
10385 21cb6e67d108 6873727 zfs destroy -d <fs> should fail more gracefully when children are present Chris Kirby <chris.kirby@sun.com> parents: 10373 diff changeset	1051 } else if (defer) {
21cb6e67d108 6873727 zfs destroy -d <fs> should fail more gracefully when children are present Chris Kirby <chris.kirby@sun.com> parents: 10373 diff changeset	1052 err = EINVAL;
21cb6e67d108 6873727 zfs destroy -d <fs> should fail more gracefully when children are present Chris Kirby <chris.kirby@sun.com> parents: 10373 diff changeset	1053 goto out;
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1054 }
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1055
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1056 dd = ds->ds_dir;
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	1057 dummy_ds.ds_dir = dd;
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	1058 dummy_ds.ds_object = ds->ds_object;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1059
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1060 /*
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1061 * Check for errors and mark this ds as inconsistent, in
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1062 * case we crash while freeing the objects.
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1063 */
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1064 err = dsl_sync_task_do(dd->dd_pool, dsl_dataset_destroy_begin_check,
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1065 dsl_dataset_destroy_begin_sync, ds, NULL, 0);
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1066 if (err)
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1067 goto out;
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1068
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	1069 err = dmu_objset_from_ds(ds, &os);
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1070 if (err)
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1071 goto out;
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1072
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1073 /*
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1074 * remove the objects in open context, so that we won't
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1075 * have too much to do in syncing context.
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1076 */
3025 4e5ee8301d84 6424466 "panic: data after EOF" when unmounting abused pool ahrens parents: 2885 diff changeset	1077 for (obj = 0; err == 0; err = dmu_object_next(os, &obj, FALSE,
4e5ee8301d84 6424466 "panic: data after EOF" when unmounting abused pool ahrens parents: 2885 diff changeset	1078 ds->ds_phys->ds_prev_snap_txg)) {
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 6975 diff changeset	1079 /*
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 6975 diff changeset	1080 * Ignore errors, if there is not enough disk space
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 6975 diff changeset	1081 * we will deal with it in dsl_dataset_destroy_sync().
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 6975 diff changeset	1082 */
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 6975 diff changeset	1083 (void) dmu_free_object(os, obj);
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1084 }
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1085
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9390 diff changeset	1086 /*
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9390 diff changeset	1087 * We need to sync out all in-flight IO before we try to evict
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9390 diff changeset	1088 * (the dataset evict func is trying to clear the cached entries
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9390 diff changeset	1089 * for this dataset in the ARC).
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9390 diff changeset	1090 */
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9390 diff changeset	1091 txg_wait_synced(dd->dd_pool, 0);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9390 diff changeset	1092
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9390 diff changeset	1093 /*
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9390 diff changeset	1094 * If we managed to free all the objects in open
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9390 diff changeset	1095 * context, the user space accounting should be zero.
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9390 diff changeset	1096 */
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9390 diff changeset	1097 if (ds->ds_phys->ds_bp.blk_fill == 0 &&
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	1098 dmu_objset_userused_enabled(os)) {
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9390 diff changeset	1099 uint64_t count;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9390 diff changeset	1100
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9390 diff changeset	1101 ASSERT(zap_count(os, DMU_USERUSED_OBJECT, &count) != 0 \|\|
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9390 diff changeset	1102 count == 0);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9390 diff changeset	1103 ASSERT(zap_count(os, DMU_GROUPUSED_OBJECT, &count) != 0 \|\|
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9390 diff changeset	1104 count == 0);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9390 diff changeset	1105 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9390 diff changeset	1106
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1107 if (err != ESRCH)
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1108 goto out;
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1109
6975 c511f317869e 6717522 panic in dmu_objset_stats() due to freed objset_impl_t maybee parents: 6689 diff changeset	1110 rw_enter(&dd->dd_pool->dp_config_rwlock, RW_READER);
c511f317869e 6717522 panic in dmu_objset_stats() due to freed objset_impl_t maybee parents: 6689 diff changeset	1111 err = dsl_dir_open_obj(dd->dd_pool, dd->dd_object, NULL, FTAG, &dd);
c511f317869e 6717522 panic in dmu_objset_stats() due to freed objset_impl_t maybee parents: 6689 diff changeset	1112 rw_exit(&dd->dd_pool->dp_config_rwlock);
c511f317869e 6717522 panic in dmu_objset_stats() due to freed objset_impl_t maybee parents: 6689 diff changeset	1113
c511f317869e 6717522 panic in dmu_objset_stats() due to freed objset_impl_t maybee parents: 6689 diff changeset	1114 if (err)
c511f317869e 6717522 panic in dmu_objset_stats() due to freed objset_impl_t maybee parents: 6689 diff changeset	1115 goto out;
c511f317869e 6717522 panic in dmu_objset_stats() due to freed objset_impl_t maybee parents: 6689 diff changeset	1116
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1117 /*
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1118 * Blow away the dsl_dir + head dataset.
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1119 */
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1120 dsl_dataset_make_exclusive(ds, tag);
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1121 /*
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1122 * If we're removing a clone, we might also need to remove its
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1123 * origin.
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1124 */
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1125 do {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1126 dsda.need_prep = B_FALSE;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1127 if (dsl_dir_is_clone(dd)) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1128 err = dsl_dataset_origin_rm_prep(&dsda, tag);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1129 if (err) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1130 dsl_dir_close(dd, FTAG);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1131 goto out;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1132 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1133 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1134
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1135 dstg = dsl_sync_task_group_create(ds->ds_dir->dd_pool);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1136 dsl_sync_task_create(dstg, dsl_dataset_destroy_check,
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1137 dsl_dataset_destroy_sync, &dsda, tag, 0);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1138 dsl_sync_task_create(dstg, dsl_dir_destroy_check,
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	1139 dsl_dir_destroy_sync, &dummy_ds, FTAG, 0);
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1140 err = dsl_sync_task_group_wait(dstg);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1141 dsl_sync_task_group_destroy(dstg);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1142
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1143 /*
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1144 * We could be racing against 'zfs release' or 'zfs destroy -d'
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1145 * on the origin snap, in which case we can get EBUSY if we
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1146 * needed to destroy the origin snap but were not ready to
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1147 * do so.
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1148 */
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1149 if (dsda.need_prep) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1150 ASSERT(err == EBUSY);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1151 ASSERT(dsl_dir_is_clone(dd));
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1152 ASSERT(dsda.rm_origin == NULL);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1153 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1154 } while (dsda.need_prep);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1155
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1156 if (dsda.rm_origin != NULL)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1157 dsl_dataset_disown(dsda.rm_origin, tag);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1158
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1159 /* if it is successful, dsl_dir_destroy_sync will close the dd */
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1160 if (err)
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1161 dsl_dir_close(dd, FTAG);
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1162 out:
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1163 dsl_dataset_disown(ds, tag);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1164 return (err);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1165 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1166
3547 e396e0a440b1 6512391 DMU should leverage ZIO dependencies to achieve greater parallelism maybee parents: 3444 diff changeset	1167 blkptr_t *
e396e0a440b1 6512391 DMU should leverage ZIO dependencies to achieve greater parallelism maybee parents: 3444 diff changeset	1168 dsl_dataset_get_blkptr(dsl_dataset_t *ds)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1169 {
3547 e396e0a440b1 6512391 DMU should leverage ZIO dependencies to achieve greater parallelism maybee parents: 3444 diff changeset	1170 return (&ds->ds_phys->ds_bp);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1171 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1172
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1173 void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1174 dsl_dataset_set_blkptr(dsl_dataset_t ds, blkptr_t bp, dmu_tx_t *tx)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1175 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1176 ASSERT(dmu_tx_is_syncing(tx));
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1177 /* If it's the meta-objset, set dp_meta_rootbp */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1178 if (ds == NULL) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1179 tx->tx_pool->dp_meta_rootbp = *bp;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1180 } else {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1181 dmu_buf_will_dirty(ds->ds_dbuf, tx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1182 ds->ds_phys->ds_bp = *bp;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1183 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1184 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1185
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1186 spa_t *
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1187 dsl_dataset_get_spa(dsl_dataset_t *ds)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1188 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1189 return (ds->ds_dir->dd_pool->dp_spa);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1190 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1191
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1192 void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1193 dsl_dataset_dirty(dsl_dataset_t ds, dmu_tx_t tx)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1194 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1195 dsl_pool_t *dp;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1196
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1197 if (ds == NULL) /* this is the meta-objset */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1198 return;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1199
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	1200 ASSERT(ds->ds_objset != NULL);
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	1201
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	1202 if (ds->ds_phys->ds_next_snap_obj != 0)
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	1203 panic("dirtying snapshot!");
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1204
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1205 dp = ds->ds_dir->dd_pool;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1206
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1207 if (txg_list_add(&dp->dp_dirty_datasets, ds, tx->tx_txg) == 0) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1208 /* up the hold count until we can be written out */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1209 dmu_buf_add_ref(ds->ds_dbuf, ds);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1210 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1211 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1212
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1213 /*
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1214 * The unique space in the head dataset can be calculated by subtracting
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1215 * the space used in the most recent snapshot, that is still being used
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1216 * in this file system, from the space currently in use. To figure out
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1217 * the space in the most recent snapshot still in use, we need to take
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1218 * the total space used in the snapshot and subtract out the space that
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1219 * has been freed up since the snapshot was taken.
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1220 */
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1221 static void
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1222 dsl_dataset_recalc_head_uniq(dsl_dataset_t *ds)
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1223 {
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1224 uint64_t mrs_used;
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1225 uint64_t dlused, dlcomp, dluncomp;
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1226
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1227 ASSERT(!dsl_dataset_is_snapshot(ds));
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1228
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1229 if (ds->ds_phys->ds_prev_snap_obj != 0)
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1230 mrs_used = ds->ds_prev->ds_phys->ds_used_bytes;
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1231 else
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1232 mrs_used = 0;
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1233
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1234 dsl_deadlist_space(&ds->ds_deadlist, &dlused, &dlcomp, &dluncomp);
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1235
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1236 ASSERT3U(dlused, <=, mrs_used);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1237 ds->ds_phys->ds_unique_bytes =
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1238 ds->ds_phys->ds_used_bytes - (mrs_used - dlused);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1239
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1240 if (spa_version(ds->ds_dir->dd_pool->dp_spa) >=
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1241 SPA_VERSION_UNIQUE_ACCURATE)
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1242 ds->ds_phys->ds_flags \|= DS_FLAG_UNIQUE_ACCURATE;
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1243 }
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1244
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1245 struct killarg {
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	1246 dsl_dataset_t *ds;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1247 dmu_tx_t *tx;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1248 };
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1249
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	1250 /* ARGSUSED */
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1251 static int
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1252 kill_blkptr(spa_t spa, zilog_t zilog, const blkptr_t bp, arc_buf_t pbuf,
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	1253 const zbookmark_t zb, const dnode_phys_t dnp, void *arg)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1254 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1255 struct killarg *ka = arg;
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	1256 dmu_tx_t *tx = ka->tx;
7837 001de5627df3 6333409 traversal code should be able to issue multiple reads in parallel Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7754 diff changeset	1257
001de5627df3 6333409 traversal code should be able to issue multiple reads in parallel Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7754 diff changeset	1258 if (bp == NULL)
001de5627df3 6333409 traversal code should be able to issue multiple reads in parallel Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7754 diff changeset	1259 return (0);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1260
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	1261 if (zb->zb_level == ZB_ZIL_LEVEL) {
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	1262 ASSERT(zilog != NULL);
8746 e1d96ca6808c 6796377 panic on rollback in space_map_add() Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 8525 diff changeset	1263 /*
e1d96ca6808c 6796377 panic on rollback in space_map_add() Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 8525 diff changeset	1264 * It's a block in the intent log. It has no
e1d96ca6808c 6796377 panic on rollback in space_map_add() Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 8525 diff changeset	1265 * accounting, so just free it.
e1d96ca6808c 6796377 panic on rollback in space_map_add() Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 8525 diff changeset	1266 */
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	1267 dsl_free(ka->tx->tx_pool, ka->tx->tx_txg, bp);
8746 e1d96ca6808c 6796377 panic on rollback in space_map_add() Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 8525 diff changeset	1268 } else {
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	1269 ASSERT(zilog == NULL);
8746 e1d96ca6808c 6796377 panic on rollback in space_map_add() Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 8525 diff changeset	1270 ASSERT3U(bp->blk_birth, >, ka->ds->ds_phys->ds_prev_snap_txg);
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	1271 (void) dsl_dataset_block_kill(ka->ds, bp, tx, B_FALSE);
8746 e1d96ca6808c 6796377 panic on rollback in space_map_add() Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 8525 diff changeset	1272 }
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	1273
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1274 return (0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1275 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1276
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1277 /* ARGSUSED */
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1278 static int
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1279 dsl_dataset_destroy_begin_check(void arg1, void arg2, dmu_tx_t *tx)
1731 1efa8b3d1296 6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train bonwick parents: 1544 diff changeset	1280 {
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1281 dsl_dataset_t *ds = arg1;
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1282 objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset;
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1283 uint64_t count;
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1284 int err;
1731 1efa8b3d1296 6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train bonwick parents: 1544 diff changeset	1285
1efa8b3d1296 6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train bonwick parents: 1544 diff changeset	1286 /*
1efa8b3d1296 6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train bonwick parents: 1544 diff changeset	1287 * Can't delete a head dataset if there are snapshots of it.
1efa8b3d1296 6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train bonwick parents: 1544 diff changeset	1288 * (Except if the only snapshots are from the branch we cloned
1efa8b3d1296 6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train bonwick parents: 1544 diff changeset	1289 * from.)
1efa8b3d1296 6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train bonwick parents: 1544 diff changeset	1290 */
1efa8b3d1296 6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train bonwick parents: 1544 diff changeset	1291 if (ds->ds_prev != NULL &&
1efa8b3d1296 6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train bonwick parents: 1544 diff changeset	1292 ds->ds_prev->ds_phys->ds_next_snap_obj == ds->ds_object)
10816 731471f04028 6482588 zfs destroy -r aborts and dumps core when destroying a file system (while snapshotting is going on) vitezslav batrla - Sun Microsystems - Prague Czech Republic <Vitezslav.Batrla@Sun.COM> parents: 10801 diff changeset	1293 return (EBUSY);
1731 1efa8b3d1296 6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train bonwick parents: 1544 diff changeset	1294
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1295 /*
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1296 * This is really a dsl_dir thing, but check it here so that
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1297 * we'll be less likely to leave this dataset inconsistent &
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1298 * nearly destroyed.
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1299 */
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1300 err = zap_count(mos, ds->ds_dir->dd_phys->dd_child_dir_zapobj, &count);
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1301 if (err)
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1302 return (err);
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1303 if (count != 0)
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1304 return (EEXIST);
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1305
1731 1efa8b3d1296 6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train bonwick parents: 1544 diff changeset	1306 return (0);
1efa8b3d1296 6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train bonwick parents: 1544 diff changeset	1307 }
1efa8b3d1296 6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train bonwick parents: 1544 diff changeset	1308
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1309 /* ARGSUSED */
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1310 static void
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1311 dsl_dataset_destroy_begin_sync(void arg1, void arg2, dmu_tx_t *tx)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1312 {
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1313 dsl_dataset_t *ds = arg1;
4543 12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4009 diff changeset	1314 dsl_pool_t *dp = ds->ds_dir->dd_pool;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1315
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1316 /* Mark it as inconsistent on-disk, in case we crash */
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1317 dmu_buf_will_dirty(ds->ds_dbuf, tx);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1318 ds->ds_phys->ds_flags \|= DS_FLAG_INCONSISTENT;
4543 12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4009 diff changeset	1319
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1320 spa_history_log_internal(LOG_DS_DESTROY_BEGIN, dp->dp_spa, tx,
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1321 "dataset = %llu", ds->ds_object);
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1322 }
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1323
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1324 static int
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1325 dsl_dataset_origin_check(struct dsl_ds_destroyarg dsda, void tag,
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1326 dmu_tx_t *tx)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1327 {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1328 dsl_dataset_t *ds = dsda->ds;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1329 dsl_dataset_t *ds_prev = ds->ds_prev;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1330
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1331 if (dsl_dataset_might_destroy_origin(ds_prev)) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1332 struct dsl_ds_destroyarg ndsda = {0};
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1333
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1334 /*
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1335 * If we're not prepared to remove the origin, don't remove
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1336 * the clone either.
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1337 */
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1338 if (dsda->rm_origin == NULL) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1339 dsda->need_prep = B_TRUE;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1340 return (EBUSY);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1341 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1342
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1343 ndsda.ds = ds_prev;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1344 ndsda.is_origin_rm = B_TRUE;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1345 return (dsl_dataset_destroy_check(&ndsda, tag, tx));
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1346 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1347
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1348 /*
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1349 * If we're not going to remove the origin after all,
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1350 * undo the open context setup.
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1351 */
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1352 if (dsda->rm_origin != NULL) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1353 dsl_dataset_disown(dsda->rm_origin, tag);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1354 dsda->rm_origin = NULL;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1355 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1356
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1357 return (0);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1358 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1359
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1360 /* ARGSUSED */
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1361 int
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1362 dsl_dataset_destroy_check(void arg1, void arg2, dmu_tx_t *tx)
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1363 {
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1364 struct dsl_ds_destroyarg *dsda = arg1;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1365 dsl_dataset_t *ds = dsda->ds;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1366
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1367 /* we have an owner hold, so noone else can destroy us */
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1368 ASSERT(!DSL_DATASET_IS_DESTROYED(ds));
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1369
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1370 /*
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1371 * Only allow deferred destroy on pools that support it.
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1372 * NOTE: deferred destroy is only supported on snapshots.
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1373 */
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1374 if (dsda->defer) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1375 if (spa_version(ds->ds_dir->dd_pool->dp_spa) <
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1376 SPA_VERSION_USERREFS)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1377 return (ENOTSUP);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1378 ASSERT(dsl_dataset_is_snapshot(ds));
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1379 return (0);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1380 }
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1381
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1382 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1383 * Can't delete a head dataset if there are snapshots of it.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1384 * (Except if the only snapshots are from the branch we cloned
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1385 * from.)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1386 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1387 if (ds->ds_prev != NULL &&
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1388 ds->ds_prev->ds_phys->ds_next_snap_obj == ds->ds_object)
10816 731471f04028 6482588 zfs destroy -r aborts and dumps core when destroying a file system (while snapshotting is going on) vitezslav batrla - Sun Microsystems - Prague Czech Republic <Vitezslav.Batrla@Sun.COM> parents: 10801 diff changeset	1389 return (EBUSY);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1390
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1391 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1392 * If we made changes this txg, traverse_dsl_dataset won't find
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1393 * them. Try again.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1394 */
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1395 if (ds->ds_phys->ds_bp.blk_birth >= tx->tx_txg)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1396 return (EAGAIN);
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1397
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1398 if (dsl_dataset_is_snapshot(ds)) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1399 /*
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1400 * If this snapshot has an elevated user reference count,
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1401 * we can't destroy it yet.
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1402 */
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1403 if (ds->ds_userrefs > 0 && !dsda->releasing)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1404 return (EBUSY);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1405
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1406 mutex_enter(&ds->ds_lock);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1407 /*
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1408 * Can't delete a branch point. However, if we're destroying
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1409 * a clone and removing its origin due to it having a user
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1410 * hold count of 0 and having been marked for deferred destroy,
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1411 * it's OK for the origin to have a single clone.
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1412 */
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1413 if (ds->ds_phys->ds_num_children >
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1414 (dsda->is_origin_rm ? 2 : 1)) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1415 mutex_exit(&ds->ds_lock);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1416 return (EEXIST);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1417 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1418 mutex_exit(&ds->ds_lock);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1419 } else if (dsl_dir_is_clone(ds->ds_dir)) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1420 return (dsl_dataset_origin_check(dsda, arg2, tx));
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1421 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1422
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1423 /* XXX we should do some i/o error checking... */
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1424 return (0);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1425 }
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1426
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1427 struct refsarg {
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1428 kmutex_t lock;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1429 boolean_t gone;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1430 kcondvar_t cv;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1431 };
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1432
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1433 /* ARGSUSED */
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1434 static void
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1435 dsl_dataset_refs_gone(dmu_buf_t db, void argv)
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1436 {
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1437 struct refsarg *arg = argv;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1438
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1439 mutex_enter(&arg->lock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1440 arg->gone = TRUE;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1441 cv_signal(&arg->cv);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1442 mutex_exit(&arg->lock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1443 }
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1444
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1445 static void
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1446 dsl_dataset_drain_refs(dsl_dataset_t ds, void tag)
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1447 {
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1448 struct refsarg arg;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1449
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1450 mutex_init(&arg.lock, NULL, MUTEX_DEFAULT, NULL);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1451 cv_init(&arg.cv, NULL, CV_DEFAULT, NULL);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1452 arg.gone = FALSE;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1453 (void) dmu_buf_update_user(ds->ds_dbuf, ds, &arg, &ds->ds_phys,
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1454 dsl_dataset_refs_gone);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1455 dmu_buf_rele(ds->ds_dbuf, tag);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1456 mutex_enter(&arg.lock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1457 while (!arg.gone)
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1458 cv_wait(&arg.cv, &arg.lock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1459 ASSERT(arg.gone);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1460 mutex_exit(&arg.lock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1461 ds->ds_dbuf = NULL;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1462 ds->ds_phys = NULL;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1463 mutex_destroy(&arg.lock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1464 cv_destroy(&arg.cv);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1465 }
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1466
10801 e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1467 static void
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1468 remove_from_next_clones(dsl_dataset_t ds, uint64_t obj, dmu_tx_t tx)
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1469 {
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1470 objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset;
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1471 uint64_t count;
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1472 int err;
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1473
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1474 ASSERT(ds->ds_phys->ds_num_children >= 2);
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1475 err = zap_remove_int(mos, ds->ds_phys->ds_next_clones_obj, obj, tx);
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1476 /*
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1477 * The err should not be ENOENT, but a bug in a previous version
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1478 * of the code could cause upgrade_clones_cb() to not set
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1479 * ds_next_snap_obj when it should, leading to a missing entry.
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1480 * If we knew that the pool was created after
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1481 * SPA_VERSION_NEXT_CLONES, we could assert that it isn't
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1482 * ENOENT. However, at least we can check that we don't have
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1483 * too many entries in the next_clones_obj even after failing to
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1484 * remove this one.
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1485 */
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1486 if (err != ENOENT) {
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1487 VERIFY3U(err, ==, 0);
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1488 }
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1489 ASSERT3U(0, ==, zap_count(mos, ds->ds_phys->ds_next_clones_obj,
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1490 &count));
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1491 ASSERT3U(count, <=, ds->ds_phys->ds_num_children - 2);
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1492 }
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1493
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1494 static void
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1495 dsl_dataset_remove_clones_key(dsl_dataset_t ds, uint64_t mintxg, dmu_tx_t tx)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1496 {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1497 objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1498 zap_cursor_t zc;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1499 zap_attribute_t za;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1500
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1501 /*
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1502 * If it is the old version, dd_clones doesn't exist so we can't
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1503 * find the clones, but deadlist_remove_key() is a no-op so it
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1504 * doesn't matter.
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1505 */
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1506 if (ds->ds_dir->dd_phys->dd_clones == 0)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1507 return;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1508
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1509 for (zap_cursor_init(&zc, mos, ds->ds_dir->dd_phys->dd_clones);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1510 zap_cursor_retrieve(&zc, &za) == 0;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1511 zap_cursor_advance(&zc)) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1512 dsl_dataset_t *clone;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1513
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1514 VERIFY3U(0, ==, dsl_dataset_hold_obj(ds->ds_dir->dd_pool,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1515 za.za_first_integer, FTAG, &clone));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1516 if (clone->ds_dir->dd_origin_txg > mintxg) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1517 dsl_deadlist_remove_key(&clone->ds_deadlist,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1518 mintxg, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1519 dsl_dataset_remove_clones_key(clone, mintxg, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1520 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1521 dsl_dataset_rele(clone, FTAG);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1522 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1523 zap_cursor_fini(&zc);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1524 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1525
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1526 struct process_old_arg {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1527 dsl_dataset_t *ds;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1528 dsl_dataset_t *ds_prev;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1529 boolean_t after_branch_point;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1530 zio_t *pio;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1531 uint64_t used, comp, uncomp;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1532 };
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1533
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1534 static int
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1535 process_old_cb(void arg, const blkptr_t bp, dmu_tx_t *tx)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1536 {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1537 struct process_old_arg *poa = arg;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1538 dsl_pool_t *dp = poa->ds->ds_dir->dd_pool;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1539
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1540 if (bp->blk_birth <= poa->ds->ds_phys->ds_prev_snap_txg) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1541 dsl_deadlist_insert(&poa->ds->ds_deadlist, bp, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1542 if (poa->ds_prev && !poa->after_branch_point &&
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1543 bp->blk_birth >
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1544 poa->ds_prev->ds_phys->ds_prev_snap_txg) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1545 poa->ds_prev->ds_phys->ds_unique_bytes +=
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1546 bp_get_dsize_sync(dp->dp_spa, bp);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1547 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1548 } else {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1549 poa->used += bp_get_dsize_sync(dp->dp_spa, bp);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1550 poa->comp += BP_GET_PSIZE(bp);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1551 poa->uncomp += BP_GET_UCSIZE(bp);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1552 dsl_free_sync(poa->pio, dp, tx->tx_txg, bp);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1553 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1554 return (0);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1555 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1556
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1557 static void
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1558 process_old_deadlist(dsl_dataset_t ds, dsl_dataset_t ds_prev,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1559 dsl_dataset_t ds_next, boolean_t after_branch_point, dmu_tx_t tx)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1560 {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1561 struct process_old_arg poa = { 0 };
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1562 dsl_pool_t *dp = ds->ds_dir->dd_pool;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1563 objset_t *mos = dp->dp_meta_objset;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1564
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1565 ASSERT(ds->ds_deadlist.dl_oldfmt);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1566 ASSERT(ds_next->ds_deadlist.dl_oldfmt);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1567
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1568 poa.ds = ds;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1569 poa.ds_prev = ds_prev;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1570 poa.after_branch_point = after_branch_point;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1571 poa.pio = zio_root(dp->dp_spa, NULL, NULL, ZIO_FLAG_MUSTSUCCEED);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1572 VERIFY3U(0, ==, bpobj_iterate(&ds_next->ds_deadlist.dl_bpobj,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1573 process_old_cb, &poa, tx));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1574 VERIFY3U(zio_wait(poa.pio), ==, 0);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1575 ASSERT3U(poa.used, ==, ds->ds_phys->ds_unique_bytes);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1576
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1577 /* change snapused */
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1578 dsl_dir_diduse_space(ds->ds_dir, DD_USED_SNAP,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1579 -poa.used, -poa.comp, -poa.uncomp, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1580
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1581 /* swap next's deadlist to our deadlist */
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1582 dsl_deadlist_close(&ds->ds_deadlist);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1583 dsl_deadlist_close(&ds_next->ds_deadlist);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1584 SWITCH64(ds_next->ds_phys->ds_deadlist_obj,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1585 ds->ds_phys->ds_deadlist_obj);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1586 dsl_deadlist_open(&ds->ds_deadlist, mos, ds->ds_phys->ds_deadlist_obj);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1587 dsl_deadlist_open(&ds_next->ds_deadlist, mos,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1588 ds_next->ds_phys->ds_deadlist_obj);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1589 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1590
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1591 void
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1592 dsl_dataset_destroy_sync(void arg1, void tag, dmu_tx_t *tx)
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1593 {
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1594 struct dsl_ds_destroyarg *dsda = arg1;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1595 dsl_dataset_t *ds = dsda->ds;
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1596 int err;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1597 int after_branch_point = FALSE;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1598 dsl_pool_t *dp = ds->ds_dir->dd_pool;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1599 objset_t *mos = dp->dp_meta_objset;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1600 dsl_dataset_t *ds_prev = NULL;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1601 uint64_t obj;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1602
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1603 ASSERT(ds->ds_owner);
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1604 ASSERT(dsda->defer \|\| ds->ds_phys->ds_num_children <= 1);
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1605 ASSERT(ds->ds_prev == NULL \|\|
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1606 ds->ds_prev->ds_phys->ds_next_snap_obj != ds->ds_object);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1607 ASSERT3U(ds->ds_phys->ds_bp.blk_birth, <=, tx->tx_txg);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1608
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1609 if (dsda->defer) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1610 ASSERT(spa_version(dp->dp_spa) >= SPA_VERSION_USERREFS);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1611 if (ds->ds_userrefs > 0 \|\| ds->ds_phys->ds_num_children > 1) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1612 dmu_buf_will_dirty(ds->ds_dbuf, tx);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1613 ds->ds_phys->ds_flags \|= DS_FLAG_DEFER_DESTROY;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1614 return;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1615 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1616 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1617
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1618 /* signal any waiters that this dataset is going away */
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1619 mutex_enter(&ds->ds_lock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1620 ds->ds_owner = dsl_reaper;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1621 cv_broadcast(&ds->ds_exclusive_cv);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1622 mutex_exit(&ds->ds_lock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1623
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1624 if (ds->ds_objset) {
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1625 dmu_objset_evict(ds->ds_objset);
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1626 ds->ds_objset = NULL;
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1627 }
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1628
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1629 /* Remove our reservation */
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1630 if (ds->ds_reserved != 0) {
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	1631 dsl_prop_setarg_t psa;
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	1632 uint64_t value = 0;
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	1633
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	1634 dsl_prop_setarg_init_uint64(&psa, "refreservation",
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	1635 (ZPROP_SRC_NONE \| ZPROP_SRC_LOCAL \| ZPROP_SRC_RECEIVED),
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	1636 &value);
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	1637 psa.psa_effective_value = 0; /* predict default value */
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	1638
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1639 dsl_dataset_set_reservation_sync(ds, &psa, tx);
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1640 ASSERT3U(ds->ds_reserved, ==, 0);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1641 }
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1642
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1643 ASSERT(RW_WRITE_HELD(&dp->dp_config_rwlock));
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1644
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1645 dsl_scan_ds_destroyed(ds, tx);
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	1646
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1647 obj = ds->ds_object;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1648
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1649 if (ds->ds_phys->ds_prev_snap_obj != 0) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1650 if (ds->ds_prev) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1651 ds_prev = ds->ds_prev;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1652 } else {
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1653 VERIFY(0 == dsl_dataset_hold_obj(dp,
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1654 ds->ds_phys->ds_prev_snap_obj, FTAG, &ds_prev));
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1655 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1656 after_branch_point =
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1657 (ds_prev->ds_phys->ds_next_snap_obj != obj);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1658
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1659 dmu_buf_will_dirty(ds_prev->ds_dbuf, tx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1660 if (after_branch_point &&
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	1661 ds_prev->ds_phys->ds_next_clones_obj != 0) {
10801 e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	1662 remove_from_next_clones(ds_prev, obj, tx);
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	1663 if (ds->ds_phys->ds_next_snap_obj != 0) {
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	1664 VERIFY(0 == zap_add_int(mos,
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	1665 ds_prev->ds_phys->ds_next_clones_obj,
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	1666 ds->ds_phys->ds_next_snap_obj, tx));
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	1667 }
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	1668 }
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	1669 if (after_branch_point &&
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1670 ds->ds_phys->ds_next_snap_obj == 0) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1671 /* This clone is toast. */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1672 ASSERT(ds_prev->ds_phys->ds_num_children > 1);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1673 ds_prev->ds_phys->ds_num_children--;
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1674
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1675 /*
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1676 * If the clone's origin has no other clones, no
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1677 * user holds, and has been marked for deferred
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1678 * deletion, then we should have done the necessary
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1679 * destroy setup for it.
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1680 */
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1681 if (ds_prev->ds_phys->ds_num_children == 1 &&
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1682 ds_prev->ds_userrefs == 0 &&
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1683 DS_IS_DEFER_DESTROY(ds_prev)) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1684 ASSERT3P(dsda->rm_origin, !=, NULL);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1685 } else {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1686 ASSERT3P(dsda->rm_origin, ==, NULL);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1687 }
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1688 } else if (!after_branch_point) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1689 ds_prev->ds_phys->ds_next_snap_obj =
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1690 ds->ds_phys->ds_next_snap_obj;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1691 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1692 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1693
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1694 if (dsl_dataset_is_snapshot(ds)) {
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1695 dsl_dataset_t *ds_next;
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1696 uint64_t old_unique;
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1697 uint64_t used = 0, comp = 0, uncomp = 0;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1698
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1699 VERIFY(0 == dsl_dataset_hold_obj(dp,
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1700 ds->ds_phys->ds_next_snap_obj, FTAG, &ds_next));
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1701 ASSERT3U(ds_next->ds_phys->ds_prev_snap_obj, ==, obj);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1702
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1703 old_unique = ds_next->ds_phys->ds_unique_bytes;
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1704
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1705 dmu_buf_will_dirty(ds_next->ds_dbuf, tx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1706 ds_next->ds_phys->ds_prev_snap_obj =
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1707 ds->ds_phys->ds_prev_snap_obj;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1708 ds_next->ds_phys->ds_prev_snap_txg =
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1709 ds->ds_phys->ds_prev_snap_txg;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1710 ASSERT3U(ds->ds_phys->ds_prev_snap_txg, ==,
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1711 ds_prev ? ds_prev->ds_phys->ds_creation_txg : 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1712
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1713
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1714 if (ds_next->ds_deadlist.dl_oldfmt) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1715 process_old_deadlist(ds, ds_prev, ds_next,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1716 after_branch_point, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1717 } else {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1718 /* Adjust prev's unique space. */
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1719 if (ds_prev && !after_branch_point) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1720 dsl_deadlist_space_range(&ds_next->ds_deadlist,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1721 ds_prev->ds_phys->ds_prev_snap_txg,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1722 ds->ds_phys->ds_prev_snap_txg,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1723 &used, &comp, &uncomp);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1724 ds_prev->ds_phys->ds_unique_bytes += used;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1725 }
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1726
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1727 /* Adjust snapused. */
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1728 dsl_deadlist_space_range(&ds_next->ds_deadlist,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1729 ds->ds_phys->ds_prev_snap_txg, UINT64_MAX,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1730 &used, &comp, &uncomp);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1731 dsl_dir_diduse_space(ds->ds_dir, DD_USED_SNAP,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1732 -used, -comp, -uncomp, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1733
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1734 /* Move blocks to be freed to pool's free list. */
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1735 dsl_deadlist_move_bpobj(&ds_next->ds_deadlist,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1736 &dp->dp_free_bpobj, ds->ds_phys->ds_prev_snap_txg,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1737 tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1738 dsl_dir_diduse_space(tx->tx_pool->dp_free_dir,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1739 DD_USED_HEAD, used, comp, uncomp, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1740 dsl_dir_dirty(tx->tx_pool->dp_free_dir, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1741
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1742 /* Merge our deadlist into next's and free it. */
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1743 dsl_deadlist_merge(&ds_next->ds_deadlist,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1744 ds->ds_phys->ds_deadlist_obj, tx);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1745 }
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1746 dsl_deadlist_close(&ds->ds_deadlist);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1747 dsl_deadlist_free(mos, ds->ds_phys->ds_deadlist_obj, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1748
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1749 /* Collapse range in clone heads */
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1750 dsl_dataset_remove_clones_key(ds,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1751 ds->ds_phys->ds_creation_txg, tx);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1752
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1753 if (dsl_dataset_is_snapshot(ds_next)) {
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1754 dsl_dataset_t *ds_nextnext;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1755
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1756 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1757 * Update next's unique to include blocks which
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1758 * were previously shared by only this snapshot
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1759 * and it. Those blocks will be born after the
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1760 * prev snap and before this snap, and will have
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1761 * died after the next snap and before the one
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1762 * after that (ie. be on the snap after next's
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1763 * deadlist).
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1764 */
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1765 VERIFY(0 == dsl_dataset_hold_obj(dp,
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1766 ds_next->ds_phys->ds_next_snap_obj,
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1767 FTAG, &ds_nextnext));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1768 dsl_deadlist_space_range(&ds_nextnext->ds_deadlist,
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	1769 ds->ds_phys->ds_prev_snap_txg,
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1770 ds->ds_phys->ds_creation_txg,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1771 &used, &comp, &uncomp);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1772 ds_next->ds_phys->ds_unique_bytes += used;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1773 dsl_dataset_rele(ds_nextnext, FTAG);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1774 ASSERT3P(ds_next->ds_prev, ==, NULL);
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1775
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1776 /* Collapse range in this head. */
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1777 dsl_dataset_t *hds;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1778 VERIFY3U(0, ==, dsl_dataset_hold_obj(dp,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1779 ds->ds_dir->dd_phys->dd_head_dataset_obj,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1780 FTAG, &hds));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1781 dsl_deadlist_remove_key(&hds->ds_deadlist,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1782 ds->ds_phys->ds_creation_txg, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1783 dsl_dataset_rele(hds, FTAG);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1784
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1785 } else {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1786 ASSERT3P(ds_next->ds_prev, ==, ds);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1787 dsl_dataset_drop_ref(ds_next->ds_prev, ds_next);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1788 ds_next->ds_prev = NULL;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1789 if (ds_prev) {
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1790 VERIFY(0 == dsl_dataset_get_ref(dp,
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1791 ds->ds_phys->ds_prev_snap_obj,
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1792 ds_next, &ds_next->ds_prev));
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1793 }
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1794
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1795 dsl_dataset_recalc_head_uniq(ds_next);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1796
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1797 /*
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1798 * Reduce the amount of our unconsmed refreservation
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1799 * being charged to our parent by the amount of
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1800 * new unique data we have gained.
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1801 */
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1802 if (old_unique < ds_next->ds_reserved) {
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1803 int64_t mrsdelta;
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1804 uint64_t new_unique =
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1805 ds_next->ds_phys->ds_unique_bytes;
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1806
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1807 ASSERT(old_unique <= new_unique);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1808 mrsdelta = MIN(new_unique - old_unique,
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1809 ds_next->ds_reserved - old_unique);
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	1810 dsl_dir_diduse_space(ds->ds_dir,
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	1811 DD_USED_REFRSRV, -mrsdelta, 0, 0, tx);
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1812 }
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1813 }
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1814 dsl_dataset_rele(ds_next, FTAG);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1815 } else {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1816 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1817 * There's no next snapshot, so this is a head dataset.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1818 * Destroy the deadlist. Unless it's a clone, the
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1819 * deadlist should be empty. (If it's a clone, it's
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1820 * safe to ignore the deadlist contents.)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1821 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1822 struct killarg ka;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1823
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1824 dsl_deadlist_close(&ds->ds_deadlist);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1825 dsl_deadlist_free(mos, ds->ds_phys->ds_deadlist_obj, tx);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1826 ds->ds_phys->ds_deadlist_obj = 0;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1827
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1828 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1829 * Free everything that we point to (that's born after
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1830 * the previous snapshot, if we are a clone)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1831 *
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	1832 * NB: this should be very quick, because we already
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	1833 * freed all the objects in open context.
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1834 */
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	1835 ka.ds = ds;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1836 ka.tx = tx;
7837 001de5627df3 6333409 traversal code should be able to issue multiple reads in parallel Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7754 diff changeset	1837 err = traverse_dataset(ds, ds->ds_phys->ds_prev_snap_txg,
001de5627df3 6333409 traversal code should be able to issue multiple reads in parallel Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7754 diff changeset	1838 TRAVERSE_POST, kill_blkptr, &ka);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1839 ASSERT3U(err, ==, 0);
9390 887948510f80 6826861 assertion failed in dsl_dataset_destroy_sync when "zfs destroy" old fs Chris Kirby <chris.kirby@sun.com> parents: 8779 diff changeset	1840 ASSERT(!DS_UNIQUE_IS_ACCURATE(ds) \|\|
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	1841 ds->ds_phys->ds_unique_bytes == 0);
10342 108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	1842
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	1843 if (ds->ds_prev != NULL) {
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1844 if (spa_version(dp->dp_spa) >= SPA_VERSION_DIR_CLONES) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1845 VERIFY3U(0, ==, zap_remove_int(mos,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1846 ds->ds_prev->ds_dir->dd_phys->dd_clones,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1847 ds->ds_object, tx));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	1848 }
10342 108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	1849 dsl_dataset_rele(ds->ds_prev, ds);
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	1850 ds->ds_prev = ds_prev = NULL;
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	1851 }
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1852 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1853
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1854 if (ds->ds_dir->dd_phys->dd_head_dataset_obj == ds->ds_object) {
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1855 /* Erase the link in the dir */
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1856 dmu_buf_will_dirty(ds->ds_dir->dd_dbuf, tx);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1857 ds->ds_dir->dd_phys->dd_head_dataset_obj = 0;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1858 ASSERT(ds->ds_phys->ds_snapnames_zapobj != 0);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1859 err = zap_destroy(mos, ds->ds_phys->ds_snapnames_zapobj, tx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1860 ASSERT(err == 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1861 } else {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1862 /* remove from snapshot namespace */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1863 dsl_dataset_t *ds_head;
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1864 ASSERT(ds->ds_phys->ds_snapnames_zapobj == 0);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1865 VERIFY(0 == dsl_dataset_hold_obj(dp,
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1866 ds->ds_dir->dd_phys->dd_head_dataset_obj, FTAG, &ds_head));
2207 47efcb3433a7 6439370 assertion failures possible in dsl_dataset_destroy_sync() ahrens parents: 2199 diff changeset	1867 VERIFY(0 == dsl_dataset_get_snapname(ds));
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1868 #ifdef ZFS_DEBUG
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1869 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1870 uint64_t val;
6492 903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	1871
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1872 err = dsl_dataset_snap_lookup(ds_head,
6492 903545192033 6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data timh parents: 6047 diff changeset	1873 ds->ds_snapname, &val);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1874 ASSERT3U(err, ==, 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1875 ASSERT3U(val, ==, obj);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1876 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1877 #endif
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1878 err = dsl_dataset_snap_remove(ds_head, ds->ds_snapname, tx);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1879 ASSERT(err == 0);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1880 dsl_dataset_rele(ds_head, FTAG);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1881 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1882
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1883 if (ds_prev && ds->ds_prev != ds_prev)
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1884 dsl_dataset_rele(ds_prev, FTAG);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1885
5094 71a3e95fb9e2 PSARC 2007/342 Enhanced ZFS Pool Properties lling parents: 4967 diff changeset	1886 spa_prop_clear_bootfs(dp->dp_spa, ds->ds_object, tx);
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1887 spa_history_log_internal(LOG_DS_DESTROY, dp->dp_spa, tx,
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1888 "dataset = %llu", ds->ds_object);
4543 12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4009 diff changeset	1889
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	1890 if (ds->ds_phys->ds_next_clones_obj != 0) {
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	1891 uint64_t count;
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	1892 ASSERT(0 == zap_count(mos,
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	1893 ds->ds_phys->ds_next_clones_obj, &count) && count == 0);
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	1894 VERIFY(0 == dmu_object_free(mos,
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	1895 ds->ds_phys->ds_next_clones_obj, tx));
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	1896 }
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	1897 if (ds->ds_phys->ds_props_obj != 0)
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	1898 VERIFY(0 == zap_destroy(mos, ds->ds_phys->ds_props_obj, tx));
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1899 if (ds->ds_phys->ds_userrefs_obj != 0)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1900 VERIFY(0 == zap_destroy(mos, ds->ds_phys->ds_userrefs_obj, tx));
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1901 dsl_dir_close(ds->ds_dir, ds);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1902 ds->ds_dir = NULL;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1903 dsl_dataset_drain_refs(ds, tag);
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1904 VERIFY(0 == dmu_object_free(mos, obj, tx));
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1905
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1906 if (dsda->rm_origin) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1907 /*
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1908 * Remove the origin of the clone we just destroyed.
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1909 */
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1910 struct dsl_ds_destroyarg ndsda = {0};
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1911
10342 108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	1912 ndsda.ds = dsda->rm_origin;
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1913 dsl_dataset_destroy_sync(&ndsda, tag, tx);
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	1914 }
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1915 }
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1916
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1917 static int
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1918 dsl_dataset_snapshot_reserve_space(dsl_dataset_t ds, dmu_tx_t tx)
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1919 {
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1920 uint64_t asize;
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1921
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1922 if (!dmu_tx_is_syncing(tx))
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1923 return (0);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1924
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1925 /*
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1926 * If there's an fs-only reservation, any blocks that might become
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1927 * owned by the snapshot dataset must be accommodated by space
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1928 * outside of the reservation.
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1929 */
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1930 ASSERT(ds->ds_reserved == 0 \|\| DS_UNIQUE_IS_ACCURATE(ds));
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1931 asize = MIN(ds->ds_phys->ds_unique_bytes, ds->ds_reserved);
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1932 if (asize > dsl_dir_space_available(ds->ds_dir, NULL, 0, FALSE))
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1933 return (ENOSPC);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1934
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1935 /*
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1936 * Propogate any reserved space for this snapshot to other
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1937 * snapshot checks in this sync group.
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1938 */
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1939 if (asize > 0)
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1940 dsl_dir_willuse_space(ds->ds_dir, asize, tx);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1941
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1942 return (0);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1943 }
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1944
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1945 int
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1946 dsl_dataset_snapshot_check(void arg1, void arg2, dmu_tx_t *tx)
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1947 {
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1948 dsl_dataset_t *ds = arg1;
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1949 const char *snapname = arg2;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1950 int err;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1951 uint64_t value;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1952
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1953 /*
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1954 * We don't allow multiple snapshots of the same txg. If there
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1955 * is already one, try again.
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1956 */
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1957 if (ds->ds_phys->ds_prev_snap_txg >= tx->tx_txg)
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1958 return (EAGAIN);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1959
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1960 /*
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1961 * Check for conflicting name snapshot name.
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1962 */
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	1963 err = dsl_dataset_snap_lookup(ds, snapname, &value);
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1964 if (err == 0)
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1965 return (EEXIST);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1966 if (err != ENOENT)
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1967 return (err);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1968
3978 2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	1969 /*
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	1970 * Check that the dataset's name is not too long. Name consists
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	1971 * of the dataset's length + 1 for the @-sign + snapshot name's length
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	1972 */
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	1973 if (dsl_dataset_namelen(ds) + 1 + strlen(snapname) >= MAXNAMELEN)
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	1974 return (ENAMETOOLONG);
2dd668007b7a 6533813 recursive snapshotting resulted in a bad stack overflow mmusante parents: 3912 diff changeset	1975
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1976 err = dsl_dataset_snapshot_reserve_space(ds, tx);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1977 if (err)
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1978 return (err);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	1979
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1980 ds->ds_trysnap_txg = tx->tx_txg;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1981 return (0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1982 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1983
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1984 void
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	1985 dsl_dataset_snapshot_sync(void arg1, void arg2, dmu_tx_t *tx)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1986 {
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	1987 dsl_dataset_t *ds = arg1;
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1988 const char *snapname = arg2;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1989 dsl_pool_t *dp = ds->ds_dir->dd_pool;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1990 dmu_buf_t *dbuf;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1991 dsl_dataset_phys_t *dsphys;
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	1992 uint64_t dsobj, crtxg;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1993 objset_t *mos = dp->dp_meta_objset;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1994 int err;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1995
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	1996 ASSERT(RW_WRITE_HELD(&dp->dp_config_rwlock));
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1997
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	1998 /*
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	1999 * The origin's ds_creation_txg has to be < TXG_INITIAL
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2000 */
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2001 if (strcmp(snapname, ORIGIN_DIR_NAME) == 0)
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2002 crtxg = 1;
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2003 else
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2004 crtxg = tx->tx_txg;
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2005
928 36d72fe4da29 6349314 dmu_object_type names incorrect for DSL Directories and DSL Datasets tabriz parents: 885 diff changeset	2006 dsobj = dmu_object_alloc(mos, DMU_OT_DSL_DATASET, 0,
36d72fe4da29 6349314 dmu_object_type names incorrect for DSL Directories and DSL Datasets tabriz parents: 885 diff changeset	2007 DMU_OT_DSL_DATASET, sizeof (dsl_dataset_phys_t), tx);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	2008 VERIFY(0 == dmu_bonus_hold(mos, dsobj, FTAG, &dbuf));
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2009 dmu_buf_will_dirty(dbuf, tx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2010 dsphys = dbuf->db_data;
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2011 bzero(dsphys, sizeof (dsl_dataset_phys_t));
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2012 dsphys->ds_dir_obj = ds->ds_dir->dd_object;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2013 dsphys->ds_fsid_guid = unique_create();
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2014 (void) random_get_pseudo_bytes((void*)&dsphys->ds_guid,
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2015 sizeof (dsphys->ds_guid));
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2016 dsphys->ds_prev_snap_obj = ds->ds_phys->ds_prev_snap_obj;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2017 dsphys->ds_prev_snap_txg = ds->ds_phys->ds_prev_snap_txg;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2018 dsphys->ds_next_snap_obj = ds->ds_object;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2019 dsphys->ds_num_children = 1;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2020 dsphys->ds_creation_time = gethrestime_sec();
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2021 dsphys->ds_creation_txg = crtxg;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2022 dsphys->ds_deadlist_obj = ds->ds_phys->ds_deadlist_obj;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2023 dsphys->ds_used_bytes = ds->ds_phys->ds_used_bytes;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2024 dsphys->ds_compressed_bytes = ds->ds_phys->ds_compressed_bytes;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2025 dsphys->ds_uncompressed_bytes = ds->ds_phys->ds_uncompressed_bytes;
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2026 dsphys->ds_flags = ds->ds_phys->ds_flags;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2027 dsphys->ds_bp = ds->ds_phys->ds_bp;
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	2028 dmu_buf_rele(dbuf, FTAG);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2029
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2030 ASSERT3U(ds->ds_prev != 0, ==, ds->ds_phys->ds_prev_snap_obj != 0);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2031 if (ds->ds_prev) {
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2032 uint64_t next_clones_obj =
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2033 ds->ds_prev->ds_phys->ds_next_clones_obj;
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2034 ASSERT(ds->ds_prev->ds_phys->ds_next_snap_obj ==
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2035 ds->ds_object \|\|
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2036 ds->ds_prev->ds_phys->ds_num_children > 1);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2037 if (ds->ds_prev->ds_phys->ds_next_snap_obj == ds->ds_object) {
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2038 dmu_buf_will_dirty(ds->ds_prev->ds_dbuf, tx);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2039 ASSERT3U(ds->ds_phys->ds_prev_snap_txg, ==,
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2040 ds->ds_prev->ds_phys->ds_creation_txg);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2041 ds->ds_prev->ds_phys->ds_next_snap_obj = dsobj;
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2042 } else if (next_clones_obj != 0) {
10801 e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	2043 remove_from_next_clones(ds->ds_prev,
e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	2044 dsphys->ds_next_snap_obj, tx);
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2045 VERIFY3U(0, ==, zap_add_int(mos,
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2046 next_clones_obj, dsobj, tx));
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2047 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2048 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2049
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2050 /*
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2051 * If we have a reference-reservation on this dataset, we will
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2052 * need to increase the amount of refreservation being charged
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2053 * since our unique space is going to zero.
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2054 */
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2055 if (ds->ds_reserved) {
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	2056 int64_t delta;
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	2057 ASSERT(DS_UNIQUE_IS_ACCURATE(ds));
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	2058 delta = MIN(ds->ds_phys->ds_unique_bytes, ds->ds_reserved);
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2059 dsl_dir_diduse_space(ds->ds_dir, DD_USED_REFRSRV,
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	2060 delta, 0, 0, tx);
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2061 }
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2062
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2063 dmu_buf_will_dirty(ds->ds_dbuf, tx);
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2064 zfs_dbgmsg("taking snapshot %s@%s/%llu; newkey=%llu",
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2065 ds->ds_dir->dd_myname, snapname, dsobj,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2066 ds->ds_phys->ds_prev_snap_txg);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2067 ds->ds_phys->ds_deadlist_obj = dsl_deadlist_clone(&ds->ds_deadlist,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2068 UINT64_MAX, ds->ds_phys->ds_prev_snap_obj, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2069 dsl_deadlist_close(&ds->ds_deadlist);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2070 dsl_deadlist_open(&ds->ds_deadlist, mos, ds->ds_phys->ds_deadlist_obj);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2071 dsl_deadlist_add_key(&ds->ds_deadlist,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2072 ds->ds_phys->ds_prev_snap_txg, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2073
5712 81f1af42bafc 6628232 zfs snapshot -r is very slow, causes systemic slowdown ahrens parents: 5569 diff changeset	2074 ASSERT3U(ds->ds_phys->ds_prev_snap_txg, <, tx->tx_txg);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2075 ds->ds_phys->ds_prev_snap_obj = dsobj;
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2076 ds->ds_phys->ds_prev_snap_txg = crtxg;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2077 ds->ds_phys->ds_unique_bytes = 0;
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2078 if (spa_version(dp->dp_spa) >= SPA_VERSION_UNIQUE_ACCURATE)
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2079 ds->ds_phys->ds_flags \|= DS_FLAG_UNIQUE_ACCURATE;
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2080
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2081 err = zap_add(mos, ds->ds_phys->ds_snapnames_zapobj,
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2082 snapname, 8, 1, &dsobj, tx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2083 ASSERT(err == 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2084
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2085 if (ds->ds_prev)
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2086 dsl_dataset_drop_ref(ds->ds_prev, ds);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2087 VERIFY(0 == dsl_dataset_get_ref(dp,
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2088 ds->ds_phys->ds_prev_snap_obj, ds, &ds->ds_prev));
4543 12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4009 diff changeset	2089
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	2090 dsl_scan_ds_snapshotted(ds, tx);
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2091
10373 bcf97ee54990 6395956 snapshot dir needs real c/mtime Chris Kirby <chris.kirby@sun.com> parents: 10342 diff changeset	2092 dsl_dir_snap_cmtime_update(ds->ds_dir);
bcf97ee54990 6395956 snapshot dir needs real c/mtime Chris Kirby <chris.kirby@sun.com> parents: 10342 diff changeset	2093
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	2094 spa_history_log_internal(LOG_DS_SNAPSHOT, dp->dp_spa, tx,
4603 c7840c367d00 6494569 zfs recv -d pool/<doesn't exist> core dumps for top-level filesystem backups ahrens parents: 4577 diff changeset	2095 "dataset = %llu", dsobj);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2096 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2097
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2098 void
3547 e396e0a440b1 6512391 DMU should leverage ZIO dependencies to achieve greater parallelism maybee parents: 3444 diff changeset	2099 dsl_dataset_sync(dsl_dataset_t ds, zio_t zio, dmu_tx_t *tx)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2100 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2101 ASSERT(dmu_tx_is_syncing(tx));
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	2102 ASSERT(ds->ds_objset != NULL);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2103 ASSERT(ds->ds_phys->ds_next_snap_obj == 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2104
4787 602d3f97842c 6393351 unique_* could be improved ahrens parents: 4603 diff changeset	2105 /*
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4603 diff changeset	2106 * in case we had to change ds_fsid_guid when we opened it,
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4603 diff changeset	2107 * sync it out now.
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4603 diff changeset	2108 */
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4603 diff changeset	2109 dmu_buf_will_dirty(ds->ds_dbuf, tx);
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4603 diff changeset	2110 ds->ds_phys->ds_fsid_guid = ds->ds_fsid_guid;
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4603 diff changeset	2111
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2112 dsl_dir_dirty(ds->ds_dir, tx);
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	2113 dmu_objset_sync(ds->ds_objset, zio, tx);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2114 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2115
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2116 void
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2117 dsl_dataset_stats(dsl_dataset_t ds, nvlist_t nv)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2118 {
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2119 uint64_t refd, avail, uobjs, aobjs;
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2120
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2121 dsl_dir_stats(ds->ds_dir, nv);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2122
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2123 dsl_dataset_space(ds, &refd, &avail, &uobjs, &aobjs);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2124 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_AVAILABLE, avail);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2125 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_REFERENCED, refd);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2126
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2127 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_CREATION,
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2128 ds->ds_phys->ds_creation_time);
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2129 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_CREATETXG,
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2130 ds->ds_phys->ds_creation_txg);
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2131 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_REFQUOTA,
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2132 ds->ds_quota);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2133 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_REFRESERVATION,
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2134 ds->ds_reserved);
6643 3a34b0dbb107 6625086 changing cachefile doesn't remove old cache on last user eschrock parents: 6502 diff changeset	2135 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_GUID,
3a34b0dbb107 6625086 changing cachefile doesn't remove old cache on last user eschrock parents: 6502 diff changeset	2136 ds->ds_phys->ds_guid);
10575 2a8816c5173b 6882196 resource.* events shouldn't be posted during spa_tryimport() Eric Schrock <Eric.Schrock@Sun.COM> parents: 10385 diff changeset	2137 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_UNIQUE,
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	2138 ds->ds_phys->ds_unique_bytes);
10575 2a8816c5173b 6882196 resource.* events shouldn't be posted during spa_tryimport() Eric Schrock <Eric.Schrock@Sun.COM> parents: 10385 diff changeset	2139 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_OBJSETID,
2a8816c5173b 6882196 resource.* events shouldn't be posted during spa_tryimport() Eric Schrock <Eric.Schrock@Sun.COM> parents: 10385 diff changeset	2140 ds->ds_object);
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	2141 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_USERREFS,
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	2142 ds->ds_userrefs);
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	2143 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_DEFER_DESTROY,
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	2144 DS_IS_DEFER_DESTROY(ds) ? 1 : 0);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2145
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2146 if (ds->ds_phys->ds_next_snap_obj) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2147 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2148 * This is a snapshot; override the dd's space used with
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2149 * our unique space and compression ratio.
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2150 */
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2151 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_USED,
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2152 ds->ds_phys->ds_unique_bytes);
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2153 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_COMPRESSRATIO,
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2154 ds->ds_phys->ds_compressed_bytes == 0 ? 100 :
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2155 (ds->ds_phys->ds_uncompressed_bytes * 100 /
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2156 ds->ds_phys->ds_compressed_bytes));
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2157 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2158 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2159
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2160 void
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2161 dsl_dataset_fast_stat(dsl_dataset_t ds, dmu_objset_stats_t stat)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2162 {
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2163 stat->dds_creation_txg = ds->ds_phys->ds_creation_txg;
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2164 stat->dds_inconsistent = ds->ds_phys->ds_flags & DS_FLAG_INCONSISTENT;
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2165 stat->dds_guid = ds->ds_phys->ds_guid;
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2166 if (ds->ds_phys->ds_next_snap_obj) {
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2167 stat->dds_is_snapshot = B_TRUE;
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2168 stat->dds_num_clones = ds->ds_phys->ds_num_children - 1;
8228 51e9ca9ee3a5 6572357 libzfs should do more to avoid mnttab lookups Eric Taylor <Eric.Taylor@Sun.COM> parents: 7837 diff changeset	2169 } else {
51e9ca9ee3a5 6572357 libzfs should do more to avoid mnttab lookups Eric Taylor <Eric.Taylor@Sun.COM> parents: 7837 diff changeset	2170 stat->dds_is_snapshot = B_FALSE;
51e9ca9ee3a5 6572357 libzfs should do more to avoid mnttab lookups Eric Taylor <Eric.Taylor@Sun.COM> parents: 7837 diff changeset	2171 stat->dds_num_clones = 0;
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2172 }
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2173
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2174 /* clone origin is really a dsl_dir thing... */
5446 51fbc14b301d 6421210 zfs rollback without unmounting ahrens parents: 5383 diff changeset	2175 rw_enter(&ds->ds_dir->dd_pool->dp_config_rwlock, RW_READER);
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2176 if (dsl_dir_is_clone(ds->ds_dir)) {
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2177 dsl_dataset_t *ods;
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2178
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2179 VERIFY(0 == dsl_dataset_get_ref(ds->ds_dir->dd_pool,
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2180 ds->ds_dir->dd_phys->dd_origin_obj, FTAG, &ods));
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2181 dsl_dataset_name(ods, stat->dds_origin);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2182 dsl_dataset_drop_ref(ods, FTAG);
8228 51e9ca9ee3a5 6572357 libzfs should do more to avoid mnttab lookups Eric Taylor <Eric.Taylor@Sun.COM> parents: 7837 diff changeset	2183 } else {
51e9ca9ee3a5 6572357 libzfs should do more to avoid mnttab lookups Eric Taylor <Eric.Taylor@Sun.COM> parents: 7837 diff changeset	2184 stat->dds_origin[0] = '\0';
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2185 }
5446 51fbc14b301d 6421210 zfs rollback without unmounting ahrens parents: 5383 diff changeset	2186 rw_exit(&ds->ds_dir->dd_pool->dp_config_rwlock);
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2187 }
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2188
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2189 uint64_t
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2190 dsl_dataset_fsid_guid(dsl_dataset_t *ds)
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2191 {
4787 602d3f97842c 6393351 unique_* could be improved ahrens parents: 4603 diff changeset	2192 return (ds->ds_fsid_guid);
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2193 }
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2194
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2195 void
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2196 dsl_dataset_space(dsl_dataset_t *ds,
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2197 uint64_t refdbytesp, uint64_t availbytesp,
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2198 uint64_t usedobjsp, uint64_t availobjsp)
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2199 {
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2200 *refdbytesp = ds->ds_phys->ds_used_bytes;
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2201 *availbytesp = dsl_dir_space_available(ds->ds_dir, NULL, 0, TRUE);
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2202 if (ds->ds_reserved > ds->ds_phys->ds_unique_bytes)
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2203 *availbytesp += ds->ds_reserved - ds->ds_phys->ds_unique_bytes;
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2204 if (ds->ds_quota != 0) {
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2205 /*
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2206 * Adjust available bytes according to refquota
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2207 */
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2208 if (*refdbytesp < ds->ds_quota)
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2209 availbytesp = MIN(availbytesp,
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2210 ds->ds_quota - *refdbytesp);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2211 else
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2212 *availbytesp = 0;
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	2213 }
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2214 *usedobjsp = ds->ds_phys->ds_bp.blk_fill;
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2856 diff changeset	2215 availobjsp = DN_MAX_OBJECT - usedobjsp;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2216 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2217
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2218 boolean_t
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2219 dsl_dataset_modified_since_lastsnap(dsl_dataset_t *ds)
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2220 {
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2221 dsl_pool_t *dp = ds->ds_dir->dd_pool;
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2222
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2223 ASSERT(RW_LOCK_HELD(&dp->dp_config_rwlock) \|\|
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2224 dsl_pool_sync_context(dp));
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2225 if (ds->ds_prev == NULL)
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2226 return (B_FALSE);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2227 if (ds->ds_phys->ds_bp.blk_birth >
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2228 ds->ds_prev->ds_phys->ds_creation_txg)
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2229 return (B_TRUE);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2230 return (B_FALSE);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2231 }
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2232
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2233 /* ARGSUSED */
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2234 static int
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2235 dsl_dataset_snapshot_rename_check(void arg1, void arg2, dmu_tx_t *tx)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2236 {
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2237 dsl_dataset_t *ds = arg1;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2238 char *newsnapname = arg2;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2239 dsl_dir_t *dd = ds->ds_dir;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2240 dsl_dataset_t *hds;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2241 uint64_t val;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2242 int err;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2243
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2244 err = dsl_dataset_hold_obj(dd->dd_pool,
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2245 dd->dd_phys->dd_head_dataset_obj, FTAG, &hds);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2246 if (err)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2247 return (err);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2248
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2249 /* new name better not be in use */
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2250 err = dsl_dataset_snap_lookup(hds, newsnapname, &val);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2251 dsl_dataset_rele(hds, FTAG);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2252
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2253 if (err == 0)
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2254 err = EEXIST;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2255 else if (err == ENOENT)
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2256 err = 0;
4007 c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2257
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2258 /* dataset name + 1 for the "@" + the new snapshot name must fit */
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2259 if (dsl_dir_namelen(ds->ds_dir) + 1 + strlen(newsnapname) >= MAXNAMELEN)
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2260 err = ENAMETOOLONG;
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2261
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2262 return (err);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2263 }
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2264
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2265 static void
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	2266 dsl_dataset_snapshot_rename_sync(void arg1, void arg2, dmu_tx_t *tx)
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2267 {
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2268 dsl_dataset_t *ds = arg1;
4543 12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4009 diff changeset	2269 const char *newsnapname = arg2;
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2270 dsl_dir_t *dd = ds->ds_dir;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2271 objset_t *mos = dd->dd_pool->dp_meta_objset;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2272 dsl_dataset_t *hds;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2273 int err;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2274
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2275 ASSERT(ds->ds_phys->ds_next_snap_obj != 0);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2276
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2277 VERIFY(0 == dsl_dataset_hold_obj(dd->dd_pool,
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2278 dd->dd_phys->dd_head_dataset_obj, FTAG, &hds));
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2279
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2280 VERIFY(0 == dsl_dataset_get_snapname(ds));
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2281 err = dsl_dataset_snap_remove(hds, ds->ds_snapname, tx);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2282 ASSERT3U(err, ==, 0);
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2283 mutex_enter(&ds->ds_lock);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2284 (void) strcpy(ds->ds_snapname, newsnapname);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2285 mutex_exit(&ds->ds_lock);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2286 err = zap_add(mos, hds->ds_phys->ds_snapnames_zapobj,
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2287 ds->ds_snapname, 8, 1, &ds->ds_object, tx);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2288 ASSERT3U(err, ==, 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2289
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	2290 spa_history_log_internal(LOG_DS_RENAME, dd->dd_pool->dp_spa, tx,
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	2291 "dataset = %llu", ds->ds_object);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2292 dsl_dataset_rele(hds, FTAG);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2293 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2294
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2295 struct renamesnaparg {
4007 c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2296 dsl_sync_task_group_t *dstg;
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2297 char failed[MAXPATHLEN];
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2298 char *oldsnap;
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2299 char *newsnap;
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2300 };
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2301
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2302 static int
11209 462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	2303 dsl_snapshot_rename_one(const char name, void arg)
4007 c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2304 {
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2305 struct renamesnaparg *ra = arg;
4007 c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2306 dsl_dataset_t *ds = NULL;
11209 462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	2307 char *snapname;
4007 c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2308 int err;
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2309
11209 462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	2310 snapname = kmem_asprintf("%s@%s", name, ra->oldsnap);
462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	2311 (void) strlcpy(ra->failed, snapname, sizeof (ra->failed));
4543 12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4009 diff changeset	2312
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4009 diff changeset	2313 /*
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4009 diff changeset	2314 * For recursive snapshot renames the parent won't be changing
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4009 diff changeset	2315 * so we just pass name for both the to/from argument.
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4009 diff changeset	2316 */
11209 462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	2317 err = zfs_secpolicy_rename_perms(snapname, snapname, CRED());
462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	2318 if (err != 0) {
462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	2319 strfree(snapname);
462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	2320 return (err == ENOENT ? 0 : err);
4543 12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4009 diff changeset	2321 }
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4009 diff changeset	2322
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2323 #ifdef _KERNEL
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2324 /*
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2325 * For all filesystems undergoing rename, we'll need to unmount it.
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2326 */
11209 462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	2327 (void) zfs_unmount_snap(snapname, NULL);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2328 #endif
11209 462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	2329 err = dsl_dataset_hold(snapname, ra->dstg, &ds);
11609 3b5da7ebb54d 6920880 assertion failure in dbuf_write_ready() Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11546 diff changeset	2330 strfree(snapname);
3b5da7ebb54d 6920880 assertion failure in dbuf_write_ready() Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11546 diff changeset	2331 if (err != 0)
11209 462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	2332 return (err == ENOENT ? 0 : err);
4007 c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2333
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2334 dsl_sync_task_create(ra->dstg, dsl_dataset_snapshot_rename_check,
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2335 dsl_dataset_snapshot_rename_sync, ds, ra->newsnap, 0);
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2336
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2337 return (0);
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2338 }
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2339
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2340 static int
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2341 dsl_recursive_rename(char oldname, const char newname)
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2342 {
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2343 int err;
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2344 struct renamesnaparg *ra;
4007 c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2345 dsl_sync_task_t *dst;
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2346 spa_t *spa;
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2347 char cp, fsname = spa_strdup(oldname);
11209 462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	2348 int len = strlen(oldname) + 1;
4007 c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2349
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2350 /* truncate the snapshot name to get the fsname */
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2351 cp = strchr(fsname, '@');
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2352 *cp = '\0';
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2353
4603 c7840c367d00 6494569 zfs recv -d pool/<doesn't exist> core dumps for top-level filesystem backups ahrens parents: 4577 diff changeset	2354 err = spa_open(fsname, &spa, FTAG);
4007 c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2355 if (err) {
11209 462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	2356 kmem_free(fsname, len);
4007 c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2357 return (err);
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2358 }
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2359 ra = kmem_alloc(sizeof (struct renamesnaparg), KM_SLEEP);
4007 c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2360 ra->dstg = dsl_sync_task_group_create(spa_get_dsl(spa));
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2361
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2362 ra->oldsnap = strchr(oldname, '@') + 1;
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2363 ra->newsnap = strchr(newname, '@') + 1;
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2364 *ra->failed = '\0';
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2365
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2366 err = dmu_objset_find(fsname, dsl_snapshot_rename_one, ra,
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2367 DS_FIND_CHILDREN);
11209 462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	2368 kmem_free(fsname, len);
4007 c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2369
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2370 if (err == 0) {
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2371 err = dsl_sync_task_group_wait(ra->dstg);
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2372 }
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2373
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2374 for (dst = list_head(&ra->dstg->dstg_tasks); dst;
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2375 dst = list_next(&ra->dstg->dstg_tasks, dst)) {
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2376 dsl_dataset_t *ds = dst->dst_arg1;
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2377 if (dst->dst_err) {
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2378 dsl_dir_name(ds->ds_dir, ra->failed);
11209 462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	2379 (void) strlcat(ra->failed, "@", sizeof (ra->failed));
462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	2380 (void) strlcat(ra->failed, ra->newsnap,
462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	2381 sizeof (ra->failed));
4007 c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2382 }
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2383 dsl_dataset_rele(ds, ra->dstg);
4007 c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2384 }
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2385
4543 12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4009 diff changeset	2386 if (err)
11209 462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	2387 (void) strlcpy(oldname, ra->failed, sizeof (ra->failed));
4007 c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2388
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2389 dsl_sync_task_group_destroy(ra->dstg);
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2390 kmem_free(ra, sizeof (struct renamesnaparg));
4007 c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2391 spa_close(spa, FTAG);
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2392 return (err);
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2393 }
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2394
4569 e80d40447f27 6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system mmusante parents: 4543 diff changeset	2395 static int
11209 462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	2396 dsl_valid_rename(const char oldname, void arg)
4569 e80d40447f27 6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system mmusante parents: 4543 diff changeset	2397 {
e80d40447f27 6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system mmusante parents: 4543 diff changeset	2398 int delta = (int )arg;
e80d40447f27 6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system mmusante parents: 4543 diff changeset	2399
e80d40447f27 6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system mmusante parents: 4543 diff changeset	2400 if (strlen(oldname) + delta >= MAXNAMELEN)
e80d40447f27 6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system mmusante parents: 4543 diff changeset	2401 return (ENAMETOOLONG);
e80d40447f27 6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system mmusante parents: 4543 diff changeset	2402
e80d40447f27 6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system mmusante parents: 4543 diff changeset	2403 return (0);
e80d40447f27 6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system mmusante parents: 4543 diff changeset	2404 }
e80d40447f27 6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system mmusante parents: 4543 diff changeset	2405
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2406 #pragma weak dmu_objset_rename = dsl_dataset_rename
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2407 int
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2408 dsl_dataset_rename(char oldname, const char newname, boolean_t recursive)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2409 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2410 dsl_dir_t *dd;
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2411 dsl_dataset_t *ds;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2412 const char *tail;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2413 int err;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2414
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2415 err = dsl_dir_open(oldname, FTAG, &dd, &tail);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	2416 if (err)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 928 diff changeset	2417 return (err);
11701 6f890435df16 6915532 snapshot related activity causes akd to hang Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM> parents: 11609 diff changeset	2418
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2419 if (tail == NULL) {
4569 e80d40447f27 6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system mmusante parents: 4543 diff changeset	2420 int delta = strlen(newname) - strlen(oldname);
e80d40447f27 6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system mmusante parents: 4543 diff changeset	2421
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2422 /* if we're growing, validate child name lengths */
4569 e80d40447f27 6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system mmusante parents: 4543 diff changeset	2423 if (delta > 0)
e80d40447f27 6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system mmusante parents: 4543 diff changeset	2424 err = dmu_objset_find(oldname, dsl_valid_rename,
e80d40447f27 6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system mmusante parents: 4543 diff changeset	2425 &delta, DS_FIND_CHILDREN \| DS_FIND_SNAPSHOTS);
e80d40447f27 6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system mmusante parents: 4543 diff changeset	2426
11823 c756cd80d532 6930022 zfs rename of non-shapshot is slower than necessary Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11701 diff changeset	2427 if (err == 0)
4569 e80d40447f27 6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system mmusante parents: 4543 diff changeset	2428 err = dsl_dir_rename(dd, newname);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2429 dsl_dir_close(dd, FTAG);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2430 return (err);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2431 }
11701 6f890435df16 6915532 snapshot related activity causes akd to hang Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM> parents: 11609 diff changeset	2432
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2433 if (tail[0] != '@') {
10588 dc03f981ea18 6438937 if 'zfs destroy' fails, it can leave a zvol device link missing Eric Taylor <Eric.Taylor@Sun.COM> parents: 10575 diff changeset	2434 /* the name ended in a nonexistent component */
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2435 dsl_dir_close(dd, FTAG);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2436 return (ENOENT);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2437 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2438
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2439 dsl_dir_close(dd, FTAG);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2440
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2441 /* new name must be snapshot in same filesystem */
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2442 tail = strchr(newname, '@');
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2443 if (tail == NULL)
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2444 return (EINVAL);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2445 tail++;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2446 if (strncmp(oldname, newname, tail - newname) != 0)
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2447 return (EXDEV);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2448
4007 c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2449 if (recursive) {
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2450 err = dsl_recursive_rename(oldname, newname);
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2451 } else {
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2452 err = dsl_dataset_hold(oldname, FTAG, &ds);
4007 c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2453 if (err)
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2454 return (err);
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2455
4007 c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2456 err = dsl_sync_task_do(ds->ds_dir->dd_pool,
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2457 dsl_dataset_snapshot_rename_check,
c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2458 dsl_dataset_snapshot_rename_sync, ds, (char *)tail, 1);
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2459
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2460 dsl_dataset_rele(ds, FTAG);
4007 c6f5c6753018 PSARC 2007/142 zfs rename -r mmusante parents: 3978 diff changeset	2461 }
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2462
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2463 return (err);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2464 }
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2465
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2466 struct promotenode {
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2467 list_node_t link;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2468 dsl_dataset_t *ds;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2469 };
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2470
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2471 struct promotearg {
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2472 list_t shared_snaps, origin_snaps, clone_snaps;
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	2473 dsl_dataset_t *origin_origin;
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2474 uint64_t used, comp, uncomp, unique, cloneusedsnap, originusedsnap;
10588 dc03f981ea18 6438937 if 'zfs destroy' fails, it can leave a zvol device link missing Eric Taylor <Eric.Taylor@Sun.COM> parents: 10575 diff changeset	2475 char *err_ds;
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2476 };
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2477
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2478 static int snaplist_space(list_t l, uint64_t mintxg, uint64_t spacep);
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	2479 static boolean_t snaplist_unstable(list_t *l);
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	2480
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2481 static int
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2482 dsl_dataset_promote_check(void arg1, void arg2, dmu_tx_t *tx)
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2483 {
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2484 dsl_dataset_t *hds = arg1;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2485 struct promotearg *pa = arg2;
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2486 struct promotenode *snap = list_head(&pa->shared_snaps);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2487 dsl_dataset_t *origin_ds = snap->ds;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2488 int err;
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2489 uint64_t unused;
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2490
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2491 /* Check that it is a real clone */
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2492 if (!dsl_dir_is_clone(hds->ds_dir))
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2493 return (EINVAL);
76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2494
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2495 /* Since this is so expensive, don't do the preliminary check */
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2496 if (!dmu_tx_is_syncing(tx))
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2497 return (0);
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2498
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2499 if (hds->ds_phys->ds_flags & DS_FLAG_NOPROMOTE)
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2500 return (EXDEV);
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2501
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2502 /* compute origin's new unique space */
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2503 snap = list_tail(&pa->clone_snaps);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2504 ASSERT3U(snap->ds->ds_phys->ds_prev_snap_obj, ==, origin_ds->ds_object);
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2505 dsl_deadlist_space_range(&snap->ds->ds_deadlist,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2506 origin_ds->ds_phys->ds_prev_snap_txg, UINT64_MAX,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2507 &pa->unique, &unused, &unused);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2508
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2509 /*
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2510 * Walk the snapshots that we are moving
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2511 *
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2512 * Compute space to transfer. Consider the incremental changes
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2513 * to used for each snapshot:
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2514 * (my used) = (prev's used) + (blocks born) - (blocks killed)
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2515 * So each snapshot gave birth to:
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2516 * (blocks born) = (my used) - (prev's used) + (blocks killed)
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2517 * So a sequence would look like:
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2518 * (uN - u(N-1) + kN) + ... + (u1 - u0 + k1) + (u0 - 0 + k0)
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2519 * Which simplifies to:
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2520 * uN + kN + kN-1 + ... + k1 + k0
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2521 * Note however, if we stop before we reach the ORIGIN we get:
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2522 * uN + kN + kN-1 + ... + kM - uM-1
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2523 */
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2524 pa->used = origin_ds->ds_phys->ds_used_bytes;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2525 pa->comp = origin_ds->ds_phys->ds_compressed_bytes;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2526 pa->uncomp = origin_ds->ds_phys->ds_uncompressed_bytes;
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2527 for (snap = list_head(&pa->shared_snaps); snap;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2528 snap = list_next(&pa->shared_snaps, snap)) {
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2529 uint64_t val, dlused, dlcomp, dluncomp;
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2530 dsl_dataset_t *ds = snap->ds;
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2531
76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2532 /* Check that the snapshot name does not conflict */
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2533 VERIFY(0 == dsl_dataset_get_snapname(ds));
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2534 err = dsl_dataset_snap_lookup(hds, ds->ds_snapname, &val);
10588 dc03f981ea18 6438937 if 'zfs destroy' fails, it can leave a zvol device link missing Eric Taylor <Eric.Taylor@Sun.COM> parents: 10575 diff changeset	2535 if (err == 0) {
dc03f981ea18 6438937 if 'zfs destroy' fails, it can leave a zvol device link missing Eric Taylor <Eric.Taylor@Sun.COM> parents: 10575 diff changeset	2536 err = EEXIST;
dc03f981ea18 6438937 if 'zfs destroy' fails, it can leave a zvol device link missing Eric Taylor <Eric.Taylor@Sun.COM> parents: 10575 diff changeset	2537 goto out;
dc03f981ea18 6438937 if 'zfs destroy' fails, it can leave a zvol device link missing Eric Taylor <Eric.Taylor@Sun.COM> parents: 10575 diff changeset	2538 }
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2539 if (err != ENOENT)
10588 dc03f981ea18 6438937 if 'zfs destroy' fails, it can leave a zvol device link missing Eric Taylor <Eric.Taylor@Sun.COM> parents: 10575 diff changeset	2540 goto out;
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2541
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2542 /* The very first snapshot does not have a deadlist */
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2543 if (ds->ds_phys->ds_prev_snap_obj == 0)
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2544 continue;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2545
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2546 dsl_deadlist_space(&ds->ds_deadlist,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2547 &dlused, &dlcomp, &dluncomp);
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2548 pa->used += dlused;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2549 pa->comp += dlcomp;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2550 pa->uncomp += dluncomp;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2551 }
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2552
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2553 /*
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2554 * If we are a clone of a clone then we never reached ORIGIN,
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2555 * so we need to subtract out the clone origin's used space.
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2556 */
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2557 if (pa->origin_origin) {
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2558 pa->used -= pa->origin_origin->ds_phys->ds_used_bytes;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2559 pa->comp -= pa->origin_origin->ds_phys->ds_compressed_bytes;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2560 pa->uncomp -= pa->origin_origin->ds_phys->ds_uncompressed_bytes;
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2561 }
76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2562
76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2563 /* Check that there is enough space here */
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2564 err = dsl_dir_transfer_possible(origin_ds->ds_dir, hds->ds_dir,
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2565 pa->used);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2566 if (err)
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2567 return (err);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2568
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2569 /*
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2570 * Compute the amounts of space that will be used by snapshots
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2571 * after the promotion (for both origin and clone). For each,
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2572 * it is the amount of space that will be on all of their
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2573 * deadlists (that was not born before their new origin).
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2574 */
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2575 if (hds->ds_dir->dd_phys->dd_flags & DD_FLAG_USED_BREAKDOWN) {
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2576 uint64_t space;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2577
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2578 /*
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2579 * Note, typically this will not be a clone of a clone,
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	2580 * so dd_origin_txg will be < TXG_INITIAL, so
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2581 * these snaplist_space() -> dsl_deadlist_space_range()
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2582 * calls will be fast because they do not have to
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2583 * iterate over all bps.
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2584 */
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2585 snap = list_head(&pa->origin_snaps);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2586 err = snaplist_space(&pa->shared_snaps,
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	2587 snap->ds->ds_dir->dd_origin_txg, &pa->cloneusedsnap);
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2588 if (err)
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2589 return (err);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2590
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2591 err = snaplist_space(&pa->clone_snaps,
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	2592 snap->ds->ds_dir->dd_origin_txg, &space);
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2593 if (err)
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2594 return (err);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2595 pa->cloneusedsnap += space;
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2596 }
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2597 if (origin_ds->ds_dir->dd_phys->dd_flags & DD_FLAG_USED_BREAKDOWN) {
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2598 err = snaplist_space(&pa->origin_snaps,
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2599 origin_ds->ds_phys->ds_creation_txg, &pa->originusedsnap);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2600 if (err)
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2601 return (err);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2602 }
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2603
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2604 return (0);
10588 dc03f981ea18 6438937 if 'zfs destroy' fails, it can leave a zvol device link missing Eric Taylor <Eric.Taylor@Sun.COM> parents: 10575 diff changeset	2605 out:
dc03f981ea18 6438937 if 'zfs destroy' fails, it can leave a zvol device link missing Eric Taylor <Eric.Taylor@Sun.COM> parents: 10575 diff changeset	2606 pa->err_ds = snap->ds->ds_snapname;
dc03f981ea18 6438937 if 'zfs destroy' fails, it can leave a zvol device link missing Eric Taylor <Eric.Taylor@Sun.COM> parents: 10575 diff changeset	2607 return (err);
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2608 }
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2609
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2610 static void
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	2611 dsl_dataset_promote_sync(void arg1, void arg2, dmu_tx_t *tx)
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2612 {
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2613 dsl_dataset_t *hds = arg1;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2614 struct promotearg *pa = arg2;
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2615 struct promotenode *snap = list_head(&pa->shared_snaps);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2616 dsl_dataset_t *origin_ds = snap->ds;
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2617 dsl_dataset_t *origin_head;
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2618 dsl_dir_t *dd = hds->ds_dir;
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2619 dsl_pool_t *dp = hds->ds_dir->dd_pool;
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2620 dsl_dir_t *odd = NULL;
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2621 uint64_t oldnext_obj;
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2622 int64_t delta;
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2623
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2624 ASSERT(0 == (hds->ds_phys->ds_flags & DS_FLAG_NOPROMOTE));
712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2625
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2626 snap = list_head(&pa->origin_snaps);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2627 origin_head = snap->ds;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2628
2417 694d5de97348 6444346 zfs promote fails in zone ahrens parents: 2207 diff changeset	2629 /*
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2630 * We need to explicitly open odd, since origin_ds's dd will be
2417 694d5de97348 6444346 zfs promote fails in zone ahrens parents: 2207 diff changeset	2631 * changing.
694d5de97348 6444346 zfs promote fails in zone ahrens parents: 2207 diff changeset	2632 */
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2633 VERIFY(0 == dsl_dir_open_obj(dp, origin_ds->ds_dir->dd_object,
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2634 NULL, FTAG, &odd));
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2635
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2636 /* change origin's next snap */
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2637 dmu_buf_will_dirty(origin_ds->ds_dbuf, tx);
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2638 oldnext_obj = origin_ds->ds_phys->ds_next_snap_obj;
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2639 snap = list_tail(&pa->clone_snaps);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2640 ASSERT3U(snap->ds->ds_phys->ds_prev_snap_obj, ==, origin_ds->ds_object);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2641 origin_ds->ds_phys->ds_next_snap_obj = snap->ds->ds_object;
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2642
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2643 /* change the origin's next clone */
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2644 if (origin_ds->ds_phys->ds_next_clones_obj) {
10801 e0bf032e8673 6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10799 diff changeset	2645 remove_from_next_clones(origin_ds, snap->ds->ds_object, tx);
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2646 VERIFY3U(0, ==, zap_add_int(dp->dp_meta_objset,
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2647 origin_ds->ds_phys->ds_next_clones_obj,
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2648 oldnext_obj, tx));
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2649 }
361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2650
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2651 /* change origin */
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2652 dmu_buf_will_dirty(dd->dd_dbuf, tx);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2653 ASSERT3U(dd->dd_phys->dd_origin_obj, ==, origin_ds->ds_object);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2654 dd->dd_phys->dd_origin_obj = odd->dd_phys->dd_origin_obj;
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	2655 dd->dd_origin_txg = origin_head->ds_dir->dd_origin_txg;
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2656 dmu_buf_will_dirty(odd->dd_dbuf, tx);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2657 odd->dd_phys->dd_origin_obj = origin_ds->ds_object;
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	2658 origin_head->ds_dir->dd_origin_txg =
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	2659 origin_ds->ds_phys->ds_creation_txg;
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2660
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2661 /* change dd_clone entries */
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2662 if (spa_version(dp->dp_spa) >= SPA_VERSION_DIR_CLONES) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2663 VERIFY3U(0, ==, zap_remove_int(dp->dp_meta_objset,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2664 odd->dd_phys->dd_clones, hds->ds_object, tx));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2665 VERIFY3U(0, ==, zap_add_int(dp->dp_meta_objset,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2666 pa->origin_origin->ds_dir->dd_phys->dd_clones,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2667 hds->ds_object, tx));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2668
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2669 VERIFY3U(0, ==, zap_remove_int(dp->dp_meta_objset,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2670 pa->origin_origin->ds_dir->dd_phys->dd_clones,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2671 origin_head->ds_object, tx));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2672 if (dd->dd_phys->dd_clones == 0) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2673 dd->dd_phys->dd_clones = zap_create(dp->dp_meta_objset,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2674 DMU_OT_DSL_CLONES, DMU_OT_NONE, 0, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2675 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2676 VERIFY3U(0, ==, zap_add_int(dp->dp_meta_objset,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2677 dd->dd_phys->dd_clones, origin_head->ds_object, tx));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2678
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2679 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2680
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2681 /* move snapshots to this dir */
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2682 for (snap = list_head(&pa->shared_snaps); snap;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2683 snap = list_next(&pa->shared_snaps, snap)) {
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2684 dsl_dataset_t *ds = snap->ds;
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2685
7237 f47d41541b14 PSARC 2008/393 zfs primarycache and secondarycache properties ek110237 parents: 7077 diff changeset	2686 /* unregister props as dsl_dir is changing */
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	2687 if (ds->ds_objset) {
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	2688 dmu_objset_evict(ds->ds_objset);
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	2689 ds->ds_objset = NULL;
7237 f47d41541b14 PSARC 2008/393 zfs primarycache and secondarycache properties ek110237 parents: 7077 diff changeset	2690 }
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2691 /* move snap name entry */
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2692 VERIFY(0 == dsl_dataset_get_snapname(ds));
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2693 VERIFY(0 == dsl_dataset_snap_remove(origin_head,
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2694 ds->ds_snapname, tx));
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2695 VERIFY(0 == zap_add(dp->dp_meta_objset,
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2696 hds->ds_phys->ds_snapnames_zapobj, ds->ds_snapname,
76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2697 8, 1, &ds->ds_object, tx));
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2698
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2699 /* change containing dsl_dir */
76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2700 dmu_buf_will_dirty(ds->ds_dbuf, tx);
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2701 ASSERT3U(ds->ds_phys->ds_dir_obj, ==, odd->dd_object);
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2702 ds->ds_phys->ds_dir_obj = dd->dd_object;
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2703 ASSERT3P(ds->ds_dir, ==, odd);
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2704 dsl_dir_close(ds->ds_dir, ds);
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	2705 VERIFY(0 == dsl_dir_open_obj(dp, dd->dd_object,
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2706 NULL, ds, &ds->ds_dir));
76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2707
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2708 /* move any clone references */
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2709 if (ds->ds_phys->ds_next_clones_obj &&
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2710 spa_version(dp->dp_spa) >= SPA_VERSION_DIR_CLONES) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2711 zap_cursor_t zc;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2712 zap_attribute_t za;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2713
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2714 for (zap_cursor_init(&zc, dp->dp_meta_objset,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2715 ds->ds_phys->ds_next_clones_obj);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2716 zap_cursor_retrieve(&zc, &za) == 0;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2717 zap_cursor_advance(&zc)) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2718 dsl_dataset_t *cnds;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2719 uint64_t o;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2720
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2721 if (za.za_first_integer == oldnext_obj) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2722 /*
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2723 * We've already moved the
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2724 * origin's reference.
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2725 */
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2726 continue;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2727 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2728
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2729 VERIFY3U(0, ==, dsl_dataset_hold_obj(dp,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2730 za.za_first_integer, FTAG, &cnds));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2731 o = cnds->ds_dir->dd_phys->dd_head_dataset_obj;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2732
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2733 VERIFY3U(zap_remove_int(dp->dp_meta_objset,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2734 odd->dd_phys->dd_clones, o, tx), ==, 0);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2735 VERIFY3U(zap_add_int(dp->dp_meta_objset,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2736 dd->dd_phys->dd_clones, o, tx), ==, 0);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2737 dsl_dataset_rele(cnds, FTAG);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2738 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2739 zap_cursor_fini(&zc);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2740 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2741
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2742 ASSERT3U(dsl_prop_numcb(ds), ==, 0);
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2743 }
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2744
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2745 /*
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2746 * Change space accounting.
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2747 * Note, pa->*usedsnap and dd_used_breakdown[SNAP] will either
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2748 * both be valid, or both be 0 (resulting in delta == 0). This
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2749 * is true for each of {clone,origin} independently.
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2750 */
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2751
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2752 delta = pa->cloneusedsnap -
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2753 dd->dd_phys->dd_used_breakdown[DD_USED_SNAP];
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2754 ASSERT3S(delta, >=, 0);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2755 ASSERT3U(pa->used, >=, delta);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2756 dsl_dir_diduse_space(dd, DD_USED_SNAP, delta, 0, 0, tx);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2757 dsl_dir_diduse_space(dd, DD_USED_HEAD,
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2758 pa->used - delta, pa->comp, pa->uncomp, tx);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2759
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2760 delta = pa->originusedsnap -
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2761 odd->dd_phys->dd_used_breakdown[DD_USED_SNAP];
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2762 ASSERT3S(delta, <=, 0);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2763 ASSERT3U(pa->used, >=, -delta);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2764 dsl_dir_diduse_space(odd, DD_USED_SNAP, delta, 0, 0, tx);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2765 dsl_dir_diduse_space(odd, DD_USED_HEAD,
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2766 -pa->used - delta, -pa->comp, -pa->uncomp, tx);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2767
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2768 origin_ds->ds_phys->ds_unique_bytes = pa->unique;
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2769
4543 12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4009 diff changeset	2770 /* log history record */
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	2771 spa_history_log_internal(LOG_DS_PROMOTE, dd->dd_pool->dp_spa, tx,
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	2772 "dataset = %llu", hds->ds_object);
4543 12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4009 diff changeset	2773
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2774 dsl_dir_close(odd, FTAG);
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2775 }
76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2776
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2777 static char *snaplist_tag = "snaplist";
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2778 /*
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2779 * Make a list of dsl_dataset_t's for the snapshots between first_obj
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2780 * (exclusive) and last_obj (inclusive). The list will be in reverse
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2781 * order (last_obj will be the list_head()). If first_obj == 0, do all
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2782 * snapshots back to this dataset's origin.
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2783 */
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2784 static int
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2785 snaplist_make(dsl_pool_t *dp, boolean_t own,
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2786 uint64_t first_obj, uint64_t last_obj, list_t *l)
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2787 {
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2788 uint64_t obj = last_obj;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2789
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2790 ASSERT(RW_LOCK_HELD(&dp->dp_config_rwlock));
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2791
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2792 list_create(l, sizeof (struct promotenode),
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2793 offsetof(struct promotenode, link));
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2794
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2795 while (obj != first_obj) {
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2796 dsl_dataset_t *ds;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2797 struct promotenode *snap;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2798 int err;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2799
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2800 if (own) {
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2801 err = dsl_dataset_own_obj(dp, obj,
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2802 0, snaplist_tag, &ds);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2803 if (err == 0)
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2804 dsl_dataset_make_exclusive(ds, snaplist_tag);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2805 } else {
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2806 err = dsl_dataset_hold_obj(dp, obj, snaplist_tag, &ds);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2807 }
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2808 if (err == ENOENT) {
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2809 /* lost race with snapshot destroy */
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2810 struct promotenode *last = list_tail(l);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2811 ASSERT(obj != last->ds->ds_phys->ds_prev_snap_obj);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2812 obj = last->ds->ds_phys->ds_prev_snap_obj;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2813 continue;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2814 } else if (err) {
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2815 return (err);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2816 }
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2817
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2818 if (first_obj == 0)
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2819 first_obj = ds->ds_dir->dd_phys->dd_origin_obj;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2820
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2821 snap = kmem_alloc(sizeof (struct promotenode), KM_SLEEP);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2822 snap->ds = ds;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2823 list_insert_tail(l, snap);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2824 obj = ds->ds_phys->ds_prev_snap_obj;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2825 }
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2826
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2827 return (0);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2828 }
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2829
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2830 static int
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2831 snaplist_space(list_t l, uint64_t mintxg, uint64_t spacep)
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2832 {
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2833 struct promotenode *snap;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2834
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2835 *spacep = 0;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2836 for (snap = list_head(l); snap; snap = list_next(l, snap)) {
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2837 uint64_t used, comp, uncomp;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2838 dsl_deadlist_space_range(&snap->ds->ds_deadlist,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2839 mintxg, UINT64_MAX, &used, &comp, &uncomp);
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2840 *spacep += used;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2841 }
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2842 return (0);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2843 }
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2844
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2845 static void
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2846 snaplist_destroy(list_t *l, boolean_t own)
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2847 {
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2848 struct promotenode *snap;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2849
8779 f164e0e90508 6784924 panic while ludelete (zfs destroy) Mark J Musante <Mark.Musante@Sun.COM> parents: 8746 diff changeset	2850 if (!l \|\| !list_link_active(&l->list_head))
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2851 return;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2852
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2853 while ((snap = list_tail(l)) != NULL) {
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2854 list_remove(l, snap);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2855 if (own)
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2856 dsl_dataset_disown(snap->ds, snaplist_tag);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2857 else
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2858 dsl_dataset_rele(snap->ds, snaplist_tag);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2859 kmem_free(snap, sizeof (struct promotenode));
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2860 }
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2861 list_destroy(l);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2862 }
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2863
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2864 /*
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2865 * Promote a clone. Nomenclature note:
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2866 * "clone" or "cds": the original clone which is being promoted
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2867 * "origin" or "ods": the snapshot which is originally clone's origin
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2868 * "origin head" or "ohds": the dataset which is the head
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2869 * (filesystem/volume) for the origin
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2870 * "origin origin": the origin of the origin's filesystem (typically
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2871 * NULL, indicating that the clone is not a clone of a clone).
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2872 */
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2873 int
10588 dc03f981ea18 6438937 if 'zfs destroy' fails, it can leave a zvol device link missing Eric Taylor <Eric.Taylor@Sun.COM> parents: 10575 diff changeset	2874 dsl_dataset_promote(const char name, char conflsnap)
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2875 {
76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2876 dsl_dataset_t *ds;
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2877 dsl_dir_t *dd;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2878 dsl_pool_t *dp;
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2879 dmu_object_info_t doi;
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2880 struct promotearg pa = { 0 };
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6992 diff changeset	2881 struct promotenode *snap;
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2882 int err;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2883
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2884 err = dsl_dataset_hold(name, FTAG, &ds);
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2885 if (err)
76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2886 return (err);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2887 dd = ds->ds_dir;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2888 dp = dd->dd_pool;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2889
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2890 err = dmu_object_info(dp->dp_meta_objset,
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2891 ds->ds_phys->ds_snapnames_zapobj, &doi);
76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2892 if (err) {
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2893 dsl_dataset_rele(ds, FTAG);
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2894 return (err);
76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2895 }
76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2896
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2897 if (dsl_dataset_is_snapshot(ds) \|\| dd->dd_phys->dd_origin_obj == 0) {
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2898 dsl_dataset_rele(ds, FTAG);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2899 return (EINVAL);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2900 }
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2901
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2902 /*
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2903 * We are going to inherit all the snapshots taken before our
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2904 * origin (i.e., our new origin will be our parent's origin).
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2905 * Take ownership of them so that we can rename them into our
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2906 * namespace.
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2907 */
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2908 rw_enter(&dp->dp_config_rwlock, RW_READER);
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2909
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2910 err = snaplist_make(dp, B_TRUE, 0, dd->dd_phys->dd_origin_obj,
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2911 &pa.shared_snaps);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2912 if (err != 0)
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2913 goto out;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2914
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2915 err = snaplist_make(dp, B_FALSE, 0, ds->ds_object, &pa.clone_snaps);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2916 if (err != 0)
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2917 goto out;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2918
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2919 snap = list_head(&pa.shared_snaps);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2920 ASSERT3U(snap->ds->ds_object, ==, dd->dd_phys->dd_origin_obj);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2921 err = snaplist_make(dp, B_FALSE, dd->dd_phys->dd_origin_obj,
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2922 snap->ds->ds_dir->dd_phys->dd_head_dataset_obj, &pa.origin_snaps);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2923 if (err != 0)
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2924 goto out;
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2925
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2926 if (snap->ds->ds_dir->dd_phys->dd_origin_obj != 0) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2927 err = dsl_dataset_hold_obj(dp,
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2928 snap->ds->ds_dir->dd_phys->dd_origin_obj,
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2929 FTAG, &pa.origin_origin);
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2930 if (err != 0)
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2931 goto out;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2932 }
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2933
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2934 out:
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2935 rw_exit(&dp->dp_config_rwlock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2936
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2937 /*
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2938 * Add in 128x the snapnames zapobj size, since we will be moving
76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2939 * a bunch of snapnames to the promoted ds, and dirtying their
76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2940 * bonus buffers.
76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2941 */
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2942 if (err == 0) {
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2943 err = dsl_sync_task_do(dp, dsl_dataset_promote_check,
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2944 dsl_dataset_promote_sync, ds, &pa,
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10816 diff changeset	2945 2 + 2 * doi.doi_physical_blocks_512);
10588 dc03f981ea18 6438937 if 'zfs destroy' fails, it can leave a zvol device link missing Eric Taylor <Eric.Taylor@Sun.COM> parents: 10575 diff changeset	2946 if (err && pa.err_ds && conflsnap)
dc03f981ea18 6438937 if 'zfs destroy' fails, it can leave a zvol device link missing Eric Taylor <Eric.Taylor@Sun.COM> parents: 10575 diff changeset	2947 (void) strncpy(conflsnap, pa.err_ds, MAXNAMELEN);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2948 }
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2949
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2950 snaplist_destroy(&pa.shared_snaps, B_TRUE);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2951 snaplist_destroy(&pa.clone_snaps, B_FALSE);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2952 snaplist_destroy(&pa.origin_snaps, B_FALSE);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	2953 if (pa.origin_origin)
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	2954 dsl_dataset_rele(pa.origin_origin, FTAG);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	2955 dsl_dataset_rele(ds, FTAG);
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2956 return (err);
76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1758 diff changeset	2957 }
3912 f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3547 diff changeset	2958
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2959 struct cloneswaparg {
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2960 dsl_dataset_t cds; / clone dataset */
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2961 dsl_dataset_t ohds; / origin's head dataset */
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2962 boolean_t force;
5481 1364fb7de75d 6619182 new non-sparse zvols should get refreservations ck153898 parents: 5475 diff changeset	2963 int64_t unused_refres_delta; /* change in unconsumed refreservation */
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2964 };
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2965
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2966 /* ARGSUSED */
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2967 static int
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2968 dsl_dataset_clone_swap_check(void arg1, void arg2, dmu_tx_t *tx)
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2969 {
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2970 struct cloneswaparg *csa = arg1;
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2971
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2972 /* they should both be heads */
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2973 if (dsl_dataset_is_snapshot(csa->cds) \|\|
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2974 dsl_dataset_is_snapshot(csa->ohds))
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2975 return (EINVAL);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2976
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2977 /* the branch point should be just before them */
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2978 if (csa->cds->ds_prev != csa->ohds->ds_prev)
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2979 return (EINVAL);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2980
10272 a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	2981 /* cds should be the clone (unless they are unrelated) */
a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	2982 if (csa->cds->ds_prev != NULL &&
a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	2983 csa->cds->ds_prev != csa->cds->ds_dir->dd_pool->dp_origin_snap &&
a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	2984 csa->ohds->ds_object !=
a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	2985 csa->cds->ds_prev->ds_phys->ds_next_snap_obj)
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2986 return (EINVAL);
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2987
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2988 /* the clone should be a child of the origin */
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2989 if (csa->cds->ds_dir->dd_parent != csa->ohds->ds_dir)
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2990 return (EINVAL);
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	2991
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2992 /* ohds shouldn't be modified unless 'force' */
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2993 if (!csa->force && dsl_dataset_modified_since_lastsnap(csa->ohds))
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	2994 return (ETXTBSY);
5481 1364fb7de75d 6619182 new non-sparse zvols should get refreservations ck153898 parents: 5475 diff changeset	2995
1364fb7de75d 6619182 new non-sparse zvols should get refreservations ck153898 parents: 5475 diff changeset	2996 /* adjust amount of any unconsumed refreservation */
1364fb7de75d 6619182 new non-sparse zvols should get refreservations ck153898 parents: 5475 diff changeset	2997 csa->unused_refres_delta =
1364fb7de75d 6619182 new non-sparse zvols should get refreservations ck153898 parents: 5475 diff changeset	2998 (int64_t)MIN(csa->ohds->ds_reserved,
1364fb7de75d 6619182 new non-sparse zvols should get refreservations ck153898 parents: 5475 diff changeset	2999 csa->ohds->ds_phys->ds_unique_bytes) -
1364fb7de75d 6619182 new non-sparse zvols should get refreservations ck153898 parents: 5475 diff changeset	3000 (int64_t)MIN(csa->ohds->ds_reserved,
1364fb7de75d 6619182 new non-sparse zvols should get refreservations ck153898 parents: 5475 diff changeset	3001 csa->cds->ds_phys->ds_unique_bytes);
1364fb7de75d 6619182 new non-sparse zvols should get refreservations ck153898 parents: 5475 diff changeset	3002
1364fb7de75d 6619182 new non-sparse zvols should get refreservations ck153898 parents: 5475 diff changeset	3003 if (csa->unused_refres_delta > 0 &&
1364fb7de75d 6619182 new non-sparse zvols should get refreservations ck153898 parents: 5475 diff changeset	3004 csa->unused_refres_delta >
1364fb7de75d 6619182 new non-sparse zvols should get refreservations ck153898 parents: 5475 diff changeset	3005 dsl_dir_space_available(csa->ohds->ds_dir, NULL, 0, TRUE))
1364fb7de75d 6619182 new non-sparse zvols should get refreservations ck153898 parents: 5475 diff changeset	3006 return (ENOSPC);
1364fb7de75d 6619182 new non-sparse zvols should get refreservations ck153898 parents: 5475 diff changeset	3007
10799 395576ddfea9 6881321 zfs test rsend_012_pos panics when running daily.0807 archives Chris Kirby <Chris.Kirby@sun.com> parents: 10588 diff changeset	3008 if (csa->ohds->ds_quota != 0 &&
395576ddfea9 6881321 zfs test rsend_012_pos panics when running daily.0807 archives Chris Kirby <Chris.Kirby@sun.com> parents: 10588 diff changeset	3009 csa->cds->ds_phys->ds_unique_bytes > csa->ohds->ds_quota)
395576ddfea9 6881321 zfs test rsend_012_pos panics when running daily.0807 archives Chris Kirby <Chris.Kirby@sun.com> parents: 10588 diff changeset	3010 return (EDQUOT);
395576ddfea9 6881321 zfs test rsend_012_pos panics when running daily.0807 archives Chris Kirby <Chris.Kirby@sun.com> parents: 10588 diff changeset	3011
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3012 return (0);
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3013 }
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3014
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3015 /* ARGSUSED */
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3016 static void
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3017 dsl_dataset_clone_swap_sync(void arg1, void arg2, dmu_tx_t *tx)
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3018 {
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3019 struct cloneswaparg *csa = arg1;
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3020 dsl_pool_t *dp = csa->cds->ds_dir->dd_pool;
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3021
5481 1364fb7de75d 6619182 new non-sparse zvols should get refreservations ck153898 parents: 5475 diff changeset	3022 ASSERT(csa->cds->ds_reserved == 0);
10799 395576ddfea9 6881321 zfs test rsend_012_pos panics when running daily.0807 archives Chris Kirby <Chris.Kirby@sun.com> parents: 10588 diff changeset	3023 ASSERT(csa->ohds->ds_quota == 0 \|\|
395576ddfea9 6881321 zfs test rsend_012_pos panics when running daily.0807 archives Chris Kirby <Chris.Kirby@sun.com> parents: 10588 diff changeset	3024 csa->cds->ds_phys->ds_unique_bytes <= csa->ohds->ds_quota);
5481 1364fb7de75d 6619182 new non-sparse zvols should get refreservations ck153898 parents: 5475 diff changeset	3025
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3026 dmu_buf_will_dirty(csa->cds->ds_dbuf, tx);
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3027 dmu_buf_will_dirty(csa->ohds->ds_dbuf, tx);
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3028
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3029 if (csa->cds->ds_objset != NULL) {
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3030 dmu_objset_evict(csa->cds->ds_objset);
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3031 csa->cds->ds_objset = NULL;
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3032 }
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3033
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3034 if (csa->ohds->ds_objset != NULL) {
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3035 dmu_objset_evict(csa->ohds->ds_objset);
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3036 csa->ohds->ds_objset = NULL;
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3037 }
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3038
10272 a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	3039 /*
a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	3040 * Reset origin's unique bytes, if it exists.
a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	3041 */
a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	3042 if (csa->cds->ds_prev) {
a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	3043 dsl_dataset_t *origin = csa->cds->ds_prev;
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3044 uint64_t comp, uncomp;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3045
10272 a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	3046 dmu_buf_will_dirty(origin->ds_dbuf, tx);
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3047 dsl_deadlist_space_range(&csa->cds->ds_deadlist,
10272 a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	3048 origin->ds_phys->ds_prev_snap_txg, UINT64_MAX,
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3049 &origin->ds_phys->ds_unique_bytes, &comp, &uncomp);
10272 a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	3050 }
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3051
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3052 /* swap blkptrs */
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3053 {
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3054 blkptr_t tmp;
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3055 tmp = csa->ohds->ds_phys->ds_bp;
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3056 csa->ohds->ds_phys->ds_bp = csa->cds->ds_phys->ds_bp;
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3057 csa->cds->ds_phys->ds_bp = tmp;
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3058 }
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3059
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3060 /* set dd__bytes /
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3061 {
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3062 int64_t dused, dcomp, duncomp;
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3063 uint64_t cdl_used, cdl_comp, cdl_uncomp;
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3064 uint64_t odl_used, odl_comp, odl_uncomp;
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3065
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	3066 ASSERT3U(csa->cds->ds_dir->dd_phys->
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	3067 dd_used_breakdown[DD_USED_SNAP], ==, 0);
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	3068
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3069 dsl_deadlist_space(&csa->cds->ds_deadlist,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3070 &cdl_used, &cdl_comp, &cdl_uncomp);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3071 dsl_deadlist_space(&csa->ohds->ds_deadlist,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3072 &odl_used, &odl_comp, &odl_uncomp);
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	3073
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3074 dused = csa->cds->ds_phys->ds_used_bytes + cdl_used -
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3075 (csa->ohds->ds_phys->ds_used_bytes + odl_used);
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3076 dcomp = csa->cds->ds_phys->ds_compressed_bytes + cdl_comp -
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3077 (csa->ohds->ds_phys->ds_compressed_bytes + odl_comp);
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3078 duncomp = csa->cds->ds_phys->ds_uncompressed_bytes +
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3079 cdl_uncomp -
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3080 (csa->ohds->ds_phys->ds_uncompressed_bytes + odl_uncomp);
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3081
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	3082 dsl_dir_diduse_space(csa->ohds->ds_dir, DD_USED_HEAD,
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3083 dused, dcomp, duncomp, tx);
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	3084 dsl_dir_diduse_space(csa->cds->ds_dir, DD_USED_HEAD,
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3085 -dused, -dcomp, -duncomp, tx);
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	3086
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	3087 /*
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	3088 * The difference in the space used by snapshots is the
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	3089 * difference in snapshot space due to the head's
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	3090 * deadlist (since that's the only thing that's
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	3091 * changing that affects the snapused).
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	3092 */
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3093 dsl_deadlist_space_range(&csa->cds->ds_deadlist,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3094 csa->ohds->ds_dir->dd_origin_txg, UINT64_MAX,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3095 &cdl_used, &cdl_comp, &cdl_uncomp);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3096 dsl_deadlist_space_range(&csa->ohds->ds_deadlist,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3097 csa->ohds->ds_dir->dd_origin_txg, UINT64_MAX,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3098 &odl_used, &odl_comp, &odl_uncomp);
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	3099 dsl_dir_transfer_space(csa->ohds->ds_dir, cdl_used - odl_used,
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	3100 DD_USED_HEAD, DD_USED_SNAP, tx);
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3101 }
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3102
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3103 /* swap ds__bytes /
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3104 SWITCH64(csa->ohds->ds_phys->ds_used_bytes,
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3105 csa->cds->ds_phys->ds_used_bytes);
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3106 SWITCH64(csa->ohds->ds_phys->ds_compressed_bytes,
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3107 csa->cds->ds_phys->ds_compressed_bytes);
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3108 SWITCH64(csa->ohds->ds_phys->ds_uncompressed_bytes,
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3109 csa->cds->ds_phys->ds_uncompressed_bytes);
5481 1364fb7de75d 6619182 new non-sparse zvols should get refreservations ck153898 parents: 5475 diff changeset	3110 SWITCH64(csa->ohds->ds_phys->ds_unique_bytes,
1364fb7de75d 6619182 new non-sparse zvols should get refreservations ck153898 parents: 5475 diff changeset	3111 csa->cds->ds_phys->ds_unique_bytes);
1364fb7de75d 6619182 new non-sparse zvols should get refreservations ck153898 parents: 5475 diff changeset	3112
1364fb7de75d 6619182 new non-sparse zvols should get refreservations ck153898 parents: 5475 diff changeset	3113 /* apply any parent delta for change in unconsumed refreservation */
7390 6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	3114 dsl_dir_diduse_space(csa->ohds->ds_dir, DD_USED_REFRSRV,
6d408f0a5fbd PSARC/2008/518 ZFS space accounting enhancements Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7385 diff changeset	3115 csa->unused_refres_delta, 0, 0, tx);
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3116
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3117 /*
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3118 * Swap deadlists.
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3119 */
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3120 dsl_deadlist_close(&csa->cds->ds_deadlist);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3121 dsl_deadlist_close(&csa->ohds->ds_deadlist);
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3122 SWITCH64(csa->ohds->ds_phys->ds_deadlist_obj,
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3123 csa->cds->ds_phys->ds_deadlist_obj);
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3124 dsl_deadlist_open(&csa->cds->ds_deadlist, dp->dp_meta_objset,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3125 csa->cds->ds_phys->ds_deadlist_obj);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3126 dsl_deadlist_open(&csa->ohds->ds_deadlist, dp->dp_meta_objset,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 12450 diff changeset	3127 csa->ohds->ds_phys->ds_deadlist_obj);
7837 001de5627df3 6333409 traversal code should be able to issue multiple reads in parallel Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7754 diff changeset	3128
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3129 dsl_scan_ds_clone_swapped(csa->ohds, csa->cds, tx);
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3130 }
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3131
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3132 /*
10272 a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	3133 * Swap 'clone' with its origin head datasets. Used at the end of "zfs
a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	3134 * recv" into an existing fs to swizzle the file system to the new
a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	3135 * version, and by "zfs rollback". Can also be used to swap two
a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	3136 * independent head datasets if neither has any snapshots.
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3137 */
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3138 int
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3139 dsl_dataset_clone_swap(dsl_dataset_t clone, dsl_dataset_t origin_head,
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3140 boolean_t force)
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3141 {
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3142 struct cloneswaparg csa;
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3143 int error;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3144
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3145 ASSERT(clone->ds_owner);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3146 ASSERT(origin_head->ds_owner);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3147 retry:
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3148 /* Need exclusive access for the swap */
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3149 rw_enter(&clone->ds_rwlock, RW_WRITER);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3150 if (!rw_tryenter(&origin_head->ds_rwlock, RW_WRITER)) {
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3151 rw_exit(&clone->ds_rwlock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3152 rw_enter(&origin_head->ds_rwlock, RW_WRITER);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3153 if (!rw_tryenter(&clone->ds_rwlock, RW_WRITER)) {
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3154 rw_exit(&origin_head->ds_rwlock);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3155 goto retry;
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3156 }
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3157 }
5367 c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3158 csa.cds = clone;
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3159 csa.ohds = origin_head;
c40abbe796be PSARC/2007/574 zfs send -R ahrens parents: 5326 diff changeset	3160 csa.force = force;
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3161 error = dsl_sync_task_do(clone->ds_dir->dd_pool,
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3162 dsl_dataset_clone_swap_check,
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3163 dsl_dataset_clone_swap_sync, &csa, NULL, 9);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3164 return (error);
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3165 }
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5094 diff changeset	3166
3912 f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3547 diff changeset	3167 /*
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3547 diff changeset	3168 * Given a pool name and a dataset object number in that pool,
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3547 diff changeset	3169 * return the name of that dataset.
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3547 diff changeset	3170 */
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3547 diff changeset	3171 int
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3547 diff changeset	3172 dsl_dsobj_to_dsname(char pname, uint64_t obj, char buf)
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3547 diff changeset	3173 {
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3547 diff changeset	3174 spa_t *spa;
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3547 diff changeset	3175 dsl_pool_t *dp;
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3176 dsl_dataset_t *ds;
3912 f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3547 diff changeset	3177 int error;
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3547 diff changeset	3178
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3547 diff changeset	3179 if ((error = spa_open(pname, &spa, FTAG)) != 0)
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3547 diff changeset	3180 return (error);
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3547 diff changeset	3181 dp = spa_get_dsl(spa);
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3547 diff changeset	3182 rw_enter(&dp->dp_config_rwlock, RW_READER);
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3183 if ((error = dsl_dataset_hold_obj(dp, obj, FTAG, &ds)) == 0) {
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3184 dsl_dataset_name(ds, buf);
47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3185 dsl_dataset_rele(ds, FTAG);
3912 f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3547 diff changeset	3186 }
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3547 diff changeset	3187 rw_exit(&dp->dp_config_rwlock);
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3547 diff changeset	3188 spa_close(spa, FTAG);
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3547 diff changeset	3189
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3190 return (error);
3912 f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3547 diff changeset	3191 }
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3192
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3193 int
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3194 dsl_dataset_check_quota(dsl_dataset_t *ds, boolean_t check_quota,
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3195 uint64_t asize, uint64_t inflight, uint64_t used, uint64_t ref_rsrv)
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3196 {
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3197 int error = 0;
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3198
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3199 ASSERT3S(asize, >, 0);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3200
5831 48655d6b290b 6630761 In sub-filesystem, available space is less than refreservation space ck153898 parents: 5712 diff changeset	3201 /*
48655d6b290b 6630761 In sub-filesystem, available space is less than refreservation space ck153898 parents: 5712 diff changeset	3202 * *ref_rsrv is the portion of asize that will come from any
48655d6b290b 6630761 In sub-filesystem, available space is less than refreservation space ck153898 parents: 5712 diff changeset	3203 * unconsumed refreservation space.
48655d6b290b 6630761 In sub-filesystem, available space is less than refreservation space ck153898 parents: 5712 diff changeset	3204 */
48655d6b290b 6630761 In sub-filesystem, available space is less than refreservation space ck153898 parents: 5712 diff changeset	3205 *ref_rsrv = 0;
48655d6b290b 6630761 In sub-filesystem, available space is less than refreservation space ck153898 parents: 5712 diff changeset	3206
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3207 mutex_enter(&ds->ds_lock);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3208 /*
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3209 * Make a space adjustment for reserved bytes.
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3210 */
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3211 if (ds->ds_reserved > ds->ds_phys->ds_unique_bytes) {
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3212 ASSERT3U(*used, >=,
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3213 ds->ds_reserved - ds->ds_phys->ds_unique_bytes);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3214 *used -= (ds->ds_reserved - ds->ds_phys->ds_unique_bytes);
5831 48655d6b290b 6630761 In sub-filesystem, available space is less than refreservation space ck153898 parents: 5712 diff changeset	3215 *ref_rsrv =
48655d6b290b 6630761 In sub-filesystem, available space is less than refreservation space ck153898 parents: 5712 diff changeset	3216 asize - MIN(asize, parent_delta(ds, asize + inflight));
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3217 }
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3218
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3219 if (!check_quota \|\| ds->ds_quota == 0) {
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3220 mutex_exit(&ds->ds_lock);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3221 return (0);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3222 }
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3223 /*
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3224 * If they are requesting more space, and our current estimate
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3225 * is over quota, they get to try again unless the actual
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3226 * on-disk is over quota and there are no pending changes (which
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3227 * may free up space for us).
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3228 */
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3229 if (ds->ds_phys->ds_used_bytes + inflight >= ds->ds_quota) {
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3230 if (inflight > 0 \|\| ds->ds_phys->ds_used_bytes < ds->ds_quota)
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3231 error = ERESTART;
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3232 else
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3233 error = EDQUOT;
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3234 }
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3235 mutex_exit(&ds->ds_lock);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3236
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3237 return (error);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3238 }
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3239
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3240 /* ARGSUSED */
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3241 static int
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3242 dsl_dataset_set_quota_check(void arg1, void arg2, dmu_tx_t *tx)
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3243 {
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3244 dsl_dataset_t *ds = arg1;
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3245 dsl_prop_setarg_t *psa = arg2;
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3246 int err;
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3247
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3248 if (spa_version(ds->ds_dir->dd_pool->dp_spa) < SPA_VERSION_REFQUOTA)
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3249 return (ENOTSUP);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3250
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3251 if ((err = dsl_prop_predict_sync(ds->ds_dir, psa)) != 0)
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3252 return (err);
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3253
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3254 if (psa->psa_effective_value == 0)
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3255 return (0);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3256
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3257 if (psa->psa_effective_value < ds->ds_phys->ds_used_bytes \|\|
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3258 psa->psa_effective_value < ds->ds_reserved)
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3259 return (ENOSPC);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3260
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3261 return (0);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3262 }
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3263
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3264 extern void dsl_prop_set_sync(void , void , dmu_tx_t *);
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3265
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3266 void
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3267 dsl_dataset_set_quota_sync(void arg1, void arg2, dmu_tx_t *tx)
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3268 {
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3269 dsl_dataset_t *ds = arg1;
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3270 dsl_prop_setarg_t *psa = arg2;
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3271 uint64_t effective_value = psa->psa_effective_value;
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3272
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3273 dsl_prop_set_sync(ds, psa, tx);
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3274 DSL_PROP_CHECK_PREDICTION(ds->ds_dir, psa);
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3275
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3276 if (ds->ds_quota != effective_value) {
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3277 dmu_buf_will_dirty(ds->ds_dbuf, tx);
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3278 ds->ds_quota = effective_value;
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3279
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3280 spa_history_log_internal(LOG_DS_REFQUOTA,
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3281 ds->ds_dir->dd_pool->dp_spa, tx, "%lld dataset = %llu ",
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3282 (longlong_t)ds->ds_quota, ds->ds_object);
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3283 }
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3284 }
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3285
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3286 int
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3287 dsl_dataset_set_quota(const char *dsname, zprop_source_t source, uint64_t quota)
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3288 {
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3289 dsl_dataset_t *ds;
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3290 dsl_prop_setarg_t psa;
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3291 int err;
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3292
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3293 dsl_prop_setarg_init_uint64(&psa, "refquota", source, &quota);
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3294
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3295 err = dsl_dataset_hold(dsname, FTAG, &ds);
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3296 if (err)
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3297 return (err);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3298
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3299 /*
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3300 * If someone removes a file, then tries to set the quota, we
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3301 * want to make sure the file freeing takes effect.
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3302 */
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3303 txg_wait_open(ds->ds_dir->dd_pool, 0);
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3304
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3305 err = dsl_sync_task_do(ds->ds_dir->dd_pool,
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3306 dsl_dataset_set_quota_check, dsl_dataset_set_quota_sync,
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3307 ds, &psa, 0);
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3308
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3309 dsl_dataset_rele(ds, FTAG);
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3310 return (err);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3311 }
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3312
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3313 static int
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3314 dsl_dataset_set_reservation_check(void arg1, void arg2, dmu_tx_t *tx)
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3315 {
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3316 dsl_dataset_t *ds = arg1;
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3317 dsl_prop_setarg_t *psa = arg2;
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3318 uint64_t effective_value;
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3319 uint64_t unique;
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3320 int err;
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3321
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3322 if (spa_version(ds->ds_dir->dd_pool->dp_spa) <
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3323 SPA_VERSION_REFRESERVATION)
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3324 return (ENOTSUP);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3325
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3326 if (dsl_dataset_is_snapshot(ds))
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3327 return (EINVAL);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3328
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3329 if ((err = dsl_prop_predict_sync(ds->ds_dir, psa)) != 0)
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3330 return (err);
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3331
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3332 effective_value = psa->psa_effective_value;
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3333
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3334 /*
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3335 * If we are doing the preliminary check in open context, the
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3336 * space estimates may be inaccurate.
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3337 */
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3338 if (!dmu_tx_is_syncing(tx))
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3339 return (0);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3340
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3341 mutex_enter(&ds->ds_lock);
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3342 if (!DS_UNIQUE_IS_ACCURATE(ds))
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3343 dsl_dataset_recalc_head_uniq(ds);
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3344 unique = ds->ds_phys->ds_unique_bytes;
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3345 mutex_exit(&ds->ds_lock);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3346
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3347 if (MAX(unique, effective_value) > MAX(unique, ds->ds_reserved)) {
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3348 uint64_t delta = MAX(unique, effective_value) -
8525 e0e0e525d0f8 6788830 set large value to reservation cause core dump Eric Schrock <Eric.Schrock@Sun.COM> parents: 8517 diff changeset	3349 MAX(unique, ds->ds_reserved);
e0e0e525d0f8 6788830 set large value to reservation cause core dump Eric Schrock <Eric.Schrock@Sun.COM> parents: 8517 diff changeset	3350
e0e0e525d0f8 6788830 set large value to reservation cause core dump Eric Schrock <Eric.Schrock@Sun.COM> parents: 8517 diff changeset	3351 if (delta > dsl_dir_space_available(ds->ds_dir, NULL, 0, TRUE))
e0e0e525d0f8 6788830 set large value to reservation cause core dump Eric Schrock <Eric.Schrock@Sun.COM> parents: 8517 diff changeset	3352 return (ENOSPC);
e0e0e525d0f8 6788830 set large value to reservation cause core dump Eric Schrock <Eric.Schrock@Sun.COM> parents: 8517 diff changeset	3353 if (ds->ds_quota > 0 &&
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3354 effective_value > ds->ds_quota)
8525 e0e0e525d0f8 6788830 set large value to reservation cause core dump Eric Schrock <Eric.Schrock@Sun.COM> parents: 8517 diff changeset	3355 return (ENOSPC);
e0e0e525d0f8 6788830 set large value to reservation cause core dump Eric Schrock <Eric.Schrock@Sun.COM> parents: 8517 diff changeset	3356 }
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3357
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3358 return (0);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3359 }
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3360
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3361 static void
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3362 dsl_dataset_set_reservation_sync(void arg1, void arg2, dmu_tx_t *tx)
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3363 {
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3364 dsl_dataset_t *ds = arg1;
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3365 dsl_prop_setarg_t *psa = arg2;
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3366 uint64_t effective_value = psa->psa_effective_value;
7595 2ff5700c7efc 6747355 finish closing race condition when setting refreservation Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7525 diff changeset	3367 uint64_t unique;
2ff5700c7efc 6747355 finish closing race condition when setting refreservation Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7525 diff changeset	3368 int64_t delta;
2ff5700c7efc 6747355 finish closing race condition when setting refreservation Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7525 diff changeset	3369
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3370 dsl_prop_set_sync(ds, psa, tx);
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3371 DSL_PROP_CHECK_PREDICTION(ds->ds_dir, psa);
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3372
7595 2ff5700c7efc 6747355 finish closing race condition when setting refreservation Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7525 diff changeset	3373 dmu_buf_will_dirty(ds->ds_dbuf, tx);
2ff5700c7efc 6747355 finish closing race condition when setting refreservation Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7525 diff changeset	3374
2ff5700c7efc 6747355 finish closing race condition when setting refreservation Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7525 diff changeset	3375 mutex_enter(&ds->ds_dir->dd_lock);
2ff5700c7efc 6747355 finish closing race condition when setting refreservation Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7525 diff changeset	3376 mutex_enter(&ds->ds_lock);
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3377 ASSERT(DS_UNIQUE_IS_ACCURATE(ds));
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3378 unique = ds->ds_phys->ds_unique_bytes;
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3379 delta = MAX(0, (int64_t)(effective_value - unique)) -
7595 2ff5700c7efc 6747355 finish closing race condition when setting refreservation Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7525 diff changeset	3380 MAX(0, (int64_t)(ds->ds_reserved - unique));
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3381 ds->ds_reserved = effective_value;
7595 2ff5700c7efc 6747355 finish closing race condition when setting refreservation Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7525 diff changeset	3382 mutex_exit(&ds->ds_lock);
2ff5700c7efc 6747355 finish closing race condition when setting refreservation Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7525 diff changeset	3383
2ff5700c7efc 6747355 finish closing race condition when setting refreservation Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7525 diff changeset	3384 dsl_dir_diduse_space(ds->ds_dir, DD_USED_REFRSRV, delta, 0, 0, tx);
2ff5700c7efc 6747355 finish closing race condition when setting refreservation Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7525 diff changeset	3385 mutex_exit(&ds->ds_dir->dd_lock);
2ff5700c7efc 6747355 finish closing race condition when setting refreservation Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7525 diff changeset	3386
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3387 spa_history_log_internal(LOG_DS_REFRESERV,
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3388 ds->ds_dir->dd_pool->dp_spa, tx, "%lld dataset = %llu",
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3389 (longlong_t)effective_value, ds->ds_object);
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3390 }
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3391
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3392 int
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3393 dsl_dataset_set_reservation(const char *dsname, zprop_source_t source,
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3394 uint64_t reservation)
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3395 {
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3396 dsl_dataset_t *ds;
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3397 dsl_prop_setarg_t psa;
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3398 int err;
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3399
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3400 dsl_prop_setarg_init_uint64(&psa, "refreservation", source,
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3401 &reservation);
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3402
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3403 err = dsl_dataset_hold(dsname, FTAG, &ds);
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3404 if (err)
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3405 return (err);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3406
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3407 err = dsl_sync_task_do(ds->ds_dir->dd_pool,
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3408 dsl_dataset_set_reservation_check,
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3409 dsl_dataset_set_reservation_sync, ds, &psa, 0);
63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10951 diff changeset	3410
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6643 diff changeset	3411 dsl_dataset_rele(ds, FTAG);
5378 111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3412 return (err);
111aa1baa84a PSARC 2007/555 zfs fs-only quotas and reservations ck153898 parents: 5367 diff changeset	3413 }
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3414
10342 108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3415 struct dsl_ds_holdarg {
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3416 dsl_sync_task_group_t *dstg;
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3417 char *htag;
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3418 char *snapname;
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3419 boolean_t recursive;
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3420 boolean_t gotone;
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3421 boolean_t temphold;
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3422 char failed[MAXPATHLEN];
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3423 };
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3424
12527 693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3425 typedef struct zfs_hold_cleanup_arg {
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3426 char dsname[MAXNAMELEN];
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3427 char snapname[MAXNAMELEN];
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3428 char htag[MAXNAMELEN];
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3429 boolean_t recursive;
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3430 } zfs_hold_cleanup_arg_t;
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3431
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3432 static void
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3433 dsl_dataset_user_release_onexit(void *arg)
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3434 {
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3435 zfs_hold_cleanup_arg_t *ca = arg;
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3436
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3437 (void) dsl_dataset_user_release(ca->dsname, ca->snapname,
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3438 ca->htag, ca->recursive);
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3439 kmem_free(ca, sizeof (zfs_hold_cleanup_arg_t));
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3440 }
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3441
10951 56fd5475e8fe 6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx) Chris Kirby <Chris.Kirby@sun.com> parents: 10922 diff changeset	3442 /*
56fd5475e8fe 6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx) Chris Kirby <Chris.Kirby@sun.com> parents: 10922 diff changeset	3443 * The max length of a temporary tag prefix is the number of hex digits
56fd5475e8fe 6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx) Chris Kirby <Chris.Kirby@sun.com> parents: 10922 diff changeset	3444 * required to express UINT64_MAX plus one for the hyphen.
56fd5475e8fe 6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx) Chris Kirby <Chris.Kirby@sun.com> parents: 10922 diff changeset	3445 */
56fd5475e8fe 6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx) Chris Kirby <Chris.Kirby@sun.com> parents: 10922 diff changeset	3446 #define MAX_TAG_PREFIX_LEN 17
56fd5475e8fe 6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx) Chris Kirby <Chris.Kirby@sun.com> parents: 10922 diff changeset	3447
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3448 static int
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3449 dsl_dataset_user_hold_check(void arg1, void arg2, dmu_tx_t *tx)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3450 {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3451 dsl_dataset_t *ds = arg1;
10342 108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3452 struct dsl_ds_holdarg *ha = arg2;
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3453 char *htag = ha->htag;
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3454 objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3455 int error = 0;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3456
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3457 if (spa_version(ds->ds_dir->dd_pool->dp_spa) < SPA_VERSION_USERREFS)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3458 return (ENOTSUP);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3459
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3460 if (!dsl_dataset_is_snapshot(ds))
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3461 return (EINVAL);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3462
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3463 /* tags must be unique */
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3464 mutex_enter(&ds->ds_lock);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3465 if (ds->ds_phys->ds_userrefs_obj) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3466 error = zap_lookup(mos, ds->ds_phys->ds_userrefs_obj, htag,
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3467 8, 1, tx);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3468 if (error == 0)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3469 error = EEXIST;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3470 else if (error == ENOENT)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3471 error = 0;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3472 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3473 mutex_exit(&ds->ds_lock);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3474
10951 56fd5475e8fe 6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx) Chris Kirby <Chris.Kirby@sun.com> parents: 10922 diff changeset	3475 if (error == 0 && ha->temphold &&
56fd5475e8fe 6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx) Chris Kirby <Chris.Kirby@sun.com> parents: 10922 diff changeset	3476 strlen(htag) + MAX_TAG_PREFIX_LEN >= MAXNAMELEN)
56fd5475e8fe 6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx) Chris Kirby <Chris.Kirby@sun.com> parents: 10922 diff changeset	3477 error = E2BIG;
56fd5475e8fe 6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx) Chris Kirby <Chris.Kirby@sun.com> parents: 10922 diff changeset	3478
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3479 return (error);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3480 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3481
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3482 static void
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3483 dsl_dataset_user_hold_sync(void arg1, void arg2, dmu_tx_t *tx)
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3484 {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3485 dsl_dataset_t *ds = arg1;
10342 108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3486 struct dsl_ds_holdarg *ha = arg2;
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3487 char *htag = ha->htag;
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3488 dsl_pool_t *dp = ds->ds_dir->dd_pool;
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3489 objset_t *mos = dp->dp_meta_objset;
10951 56fd5475e8fe 6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx) Chris Kirby <Chris.Kirby@sun.com> parents: 10922 diff changeset	3490 uint64_t now = gethrestime_sec();
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3491 uint64_t zapobj;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3492
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3493 mutex_enter(&ds->ds_lock);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3494 if (ds->ds_phys->ds_userrefs_obj == 0) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3495 /*
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3496 * This is the first user hold for this dataset. Create
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3497 * the userrefs zap object.
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3498 */
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3499 dmu_buf_will_dirty(ds->ds_dbuf, tx);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3500 zapobj = ds->ds_phys->ds_userrefs_obj =
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3501 zap_create(mos, DMU_OT_USERREFS, DMU_OT_NONE, 0, tx);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3502 } else {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3503 zapobj = ds->ds_phys->ds_userrefs_obj;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3504 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3505 ds->ds_userrefs++;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3506 mutex_exit(&ds->ds_lock);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3507
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3508 VERIFY(0 == zap_add(mos, zapobj, htag, 8, 1, &now, tx));
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3509
10342 108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3510 if (ha->temphold) {
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3511 VERIFY(0 == dsl_pool_user_hold(dp, ds->ds_object,
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3512 htag, &now, tx));
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3513 }
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3514
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3515 spa_history_log_internal(LOG_DS_USER_HOLD,
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3516 dp->dp_spa, tx, "<%s> temp = %d dataset = %llu", htag,
10342 108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3517 (int)ha->temphold, ds->ds_object);
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3518 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3519
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3520 static int
11209 462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	3521 dsl_dataset_user_hold_one(const char dsname, void arg)
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3522 {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3523 struct dsl_ds_holdarg *ha = arg;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3524 dsl_dataset_t *ds;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3525 int error;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3526 char *name;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3527
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3528 /* alloc a buffer to hold dsname@snapname plus terminating NULL */
10272 a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	3529 name = kmem_asprintf("%s@%s", dsname, ha->snapname);
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3530 error = dsl_dataset_hold(name, ha->dstg, &ds);
10272 a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	3531 strfree(name);
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3532 if (error == 0) {
10268 cb380b2e9410 6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot Chris Kirby <chris.kirby@sun.com> parents: 10242 diff changeset	3533 ha->gotone = B_TRUE;
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3534 dsl_sync_task_create(ha->dstg, dsl_dataset_user_hold_check,
10342 108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3535 dsl_dataset_user_hold_sync, ds, ha, 0);
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3536 } else if (error == ENOENT && ha->recursive) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3537 error = 0;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3538 } else {
11209 462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	3539 (void) strlcpy(ha->failed, dsname, sizeof (ha->failed));
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3540 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3541 return (error);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3542 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3543
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3544 int
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3545 dsl_dataset_user_hold(char dsname, char snapname, char *htag,
12527 693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3546 boolean_t recursive, boolean_t temphold, int cleanup_fd)
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3547 {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3548 struct dsl_ds_holdarg *ha;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3549 dsl_sync_task_t *dst;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3550 spa_t *spa;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3551 int error;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3552
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3553 ha = kmem_zalloc(sizeof (struct dsl_ds_holdarg), KM_SLEEP);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3554
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3555 (void) strlcpy(ha->failed, dsname, sizeof (ha->failed));
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3556
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3557 error = spa_open(dsname, &spa, FTAG);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3558 if (error) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3559 kmem_free(ha, sizeof (struct dsl_ds_holdarg));
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3560 return (error);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3561 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3562
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3563 ha->dstg = dsl_sync_task_group_create(spa_get_dsl(spa));
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3564 ha->htag = htag;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3565 ha->snapname = snapname;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3566 ha->recursive = recursive;
10342 108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3567 ha->temphold = temphold;
12527 693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3568
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3569 if (recursive) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3570 error = dmu_objset_find(dsname, dsl_dataset_user_hold_one,
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3571 ha, DS_FIND_CHILDREN);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3572 } else {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3573 error = dsl_dataset_user_hold_one(dsname, ha);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3574 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3575 if (error == 0)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3576 error = dsl_sync_task_group_wait(ha->dstg);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3577
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3578 for (dst = list_head(&ha->dstg->dstg_tasks); dst;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3579 dst = list_next(&ha->dstg->dstg_tasks, dst)) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3580 dsl_dataset_t *ds = dst->dst_arg1;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3581
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3582 if (dst->dst_err) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3583 dsl_dataset_name(ds, ha->failed);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3584 *strchr(ha->failed, '@') = '\0';
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3585 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3586 dsl_dataset_rele(ds, ha->dstg);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3587 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3588
10268 cb380b2e9410 6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot Chris Kirby <chris.kirby@sun.com> parents: 10242 diff changeset	3589 if (error == 0 && recursive && !ha->gotone)
cb380b2e9410 6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot Chris Kirby <chris.kirby@sun.com> parents: 10242 diff changeset	3590 error = ENOENT;
cb380b2e9410 6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot Chris Kirby <chris.kirby@sun.com> parents: 10242 diff changeset	3591
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3592 if (error)
11209 462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	3593 (void) strlcpy(dsname, ha->failed, sizeof (ha->failed));
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3594
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3595 dsl_sync_task_group_destroy(ha->dstg);
12527 693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3596
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3597 /*
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3598 * If this set of temporary holds is to be removed upon process exit,
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3599 * register that action now.
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3600 */
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3601 if (error == 0 && cleanup_fd != -1 && temphold) {
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3602 zfs_hold_cleanup_arg_t *ca;
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3603 uint64_t action_handle;
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3604
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3605 ca = kmem_alloc(sizeof (zfs_hold_cleanup_arg_t), KM_SLEEP);
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3606 (void) strlcpy(ca->dsname, dsname, sizeof (ca->dsname));
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3607 (void) strlcpy(ca->snapname, snapname, sizeof (ca->snapname));
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3608 (void) strlcpy(ca->htag, htag, sizeof (ca->htag));
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3609 ca->recursive = recursive;
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3610 ASSERT3U(0, ==, zfs_onexit_add_cb(cleanup_fd,
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3611 dsl_dataset_user_release_onexit, ca, &action_handle));
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3612 }
693dd2cad55f 6884007 zfs_send() can leave temporary holds around Chris Kirby <Chris.Kirby@oracle.com> parents: 12470 diff changeset	3613
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3614 kmem_free(ha, sizeof (struct dsl_ds_holdarg));
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3615 spa_close(spa, FTAG);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3616 return (error);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3617 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3618
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3619 struct dsl_ds_releasearg {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3620 dsl_dataset_t *ds;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3621 const char *htag;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3622 boolean_t own; /* do we own or just hold ds? */
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3623 };
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3624
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3625 static int
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3626 dsl_dataset_release_might_destroy(dsl_dataset_t ds, const char htag,
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3627 boolean_t *might_destroy)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3628 {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3629 objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3630 uint64_t zapobj;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3631 uint64_t tmp;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3632 int error;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3633
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3634 *might_destroy = B_FALSE;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3635
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3636 mutex_enter(&ds->ds_lock);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3637 zapobj = ds->ds_phys->ds_userrefs_obj;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3638 if (zapobj == 0) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3639 /* The tag can't possibly exist */
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3640 mutex_exit(&ds->ds_lock);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3641 return (ESRCH);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3642 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3643
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3644 /* Make sure the tag exists */
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3645 error = zap_lookup(mos, zapobj, htag, 8, 1, &tmp);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3646 if (error) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3647 mutex_exit(&ds->ds_lock);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3648 if (error == ENOENT)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3649 error = ESRCH;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3650 return (error);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3651 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3652
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3653 if (ds->ds_userrefs == 1 && ds->ds_phys->ds_num_children == 1 &&
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3654 DS_IS_DEFER_DESTROY(ds))
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3655 *might_destroy = B_TRUE;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3656
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3657 mutex_exit(&ds->ds_lock);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3658 return (0);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3659 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3660
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3661 static int
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3662 dsl_dataset_user_release_check(void arg1, void tag, dmu_tx_t *tx)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3663 {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3664 struct dsl_ds_releasearg *ra = arg1;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3665 dsl_dataset_t *ds = ra->ds;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3666 boolean_t might_destroy;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3667 int error;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3668
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3669 if (spa_version(ds->ds_dir->dd_pool->dp_spa) < SPA_VERSION_USERREFS)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3670 return (ENOTSUP);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3671
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3672 error = dsl_dataset_release_might_destroy(ds, ra->htag, &might_destroy);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3673 if (error)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3674 return (error);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3675
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3676 if (might_destroy) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3677 struct dsl_ds_destroyarg dsda = {0};
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3678
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3679 if (dmu_tx_is_syncing(tx)) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3680 /*
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3681 * If we're not prepared to remove the snapshot,
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3682 * we can't allow the release to happen right now.
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3683 */
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3684 if (!ra->own)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3685 return (EBUSY);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3686 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3687 dsda.ds = ds;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3688 dsda.releasing = B_TRUE;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3689 return (dsl_dataset_destroy_check(&dsda, tag, tx));
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3690 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3691
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3692 return (0);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3693 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3694
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3695 static void
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3696 dsl_dataset_user_release_sync(void arg1, void tag, dmu_tx_t *tx)
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3697 {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3698 struct dsl_ds_releasearg *ra = arg1;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3699 dsl_dataset_t *ds = ra->ds;
10342 108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3700 dsl_pool_t *dp = ds->ds_dir->dd_pool;
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3701 objset_t *mos = dp->dp_meta_objset;
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3702 uint64_t zapobj;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3703 uint64_t dsobj = ds->ds_object;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3704 uint64_t refs;
10342 108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3705 int error;
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3706
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3707 if (ds->ds_objset) {
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3708 dmu_objset_evict(ds->ds_objset);
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3709 ds->ds_objset = NULL;
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3710 }
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3711
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3712 mutex_enter(&ds->ds_lock);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3713 ds->ds_userrefs--;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3714 refs = ds->ds_userrefs;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3715 mutex_exit(&ds->ds_lock);
10342 108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3716 error = dsl_pool_user_release(dp, ds->ds_object, ra->htag, tx);
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3717 VERIFY(error == 0 \|\| error == ENOENT);
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3718 zapobj = ds->ds_phys->ds_userrefs_obj;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3719 VERIFY(0 == zap_remove(mos, zapobj, ra->htag, tx));
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3720 if (ds->ds_userrefs == 0 && ds->ds_phys->ds_num_children == 1 &&
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3721 DS_IS_DEFER_DESTROY(ds)) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3722 struct dsl_ds_destroyarg dsda = {0};
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3723
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3724 ASSERT(ra->own);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3725 dsda.ds = ds;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3726 dsda.releasing = B_TRUE;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3727 /* We already did the destroy_check */
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3728 dsl_dataset_destroy_sync(&dsda, tag, tx);
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3729 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3730
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3731 spa_history_log_internal(LOG_DS_USER_RELEASE,
7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12295 diff changeset	3732 dp->dp_spa, tx, "<%s> %lld dataset = %llu",
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3733 ra->htag, (longlong_t)refs, dsobj);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3734 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3735
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3736 static int
11209 462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	3737 dsl_dataset_user_release_one(const char dsname, void arg)
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3738 {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3739 struct dsl_ds_holdarg *ha = arg;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3740 struct dsl_ds_releasearg *ra;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3741 dsl_dataset_t *ds;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3742 int error;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3743 void *dtag = ha->dstg;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3744 char *name;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3745 boolean_t own = B_FALSE;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3746 boolean_t might_destroy;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3747
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3748 /* alloc a buffer to hold dsname@snapname, plus the terminating NULL */
10272 a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	3749 name = kmem_asprintf("%s@%s", dsname, ha->snapname);
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3750 error = dsl_dataset_hold(name, dtag, &ds);
10272 a0669934e974 6861581 ZFS frees in synching context during rollback Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10268 diff changeset	3751 strfree(name);
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3752 if (error == ENOENT && ha->recursive)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3753 return (0);
11209 462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	3754 (void) strlcpy(ha->failed, dsname, sizeof (ha->failed));
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3755 if (error)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3756 return (error);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3757
10268 cb380b2e9410 6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot Chris Kirby <chris.kirby@sun.com> parents: 10242 diff changeset	3758 ha->gotone = B_TRUE;
cb380b2e9410 6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot Chris Kirby <chris.kirby@sun.com> parents: 10242 diff changeset	3759
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3760 ASSERT(dsl_dataset_is_snapshot(ds));
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3761
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3762 error = dsl_dataset_release_might_destroy(ds, ha->htag, &might_destroy);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3763 if (error) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3764 dsl_dataset_rele(ds, dtag);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3765 return (error);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3766 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3767
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3768 if (might_destroy) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3769 #ifdef _KERNEL
12115 3655f38d3bea 6942295 use-after-free panic in dsl_dataset_user_release_one Chris Kirby <Chris.Kirby@oracle.com> parents: 11823 diff changeset	3770 name = kmem_asprintf("%s@%s", dsname, ha->snapname);
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3771 error = zfs_unmount_snap(name, NULL);
12115 3655f38d3bea 6942295 use-after-free panic in dsl_dataset_user_release_one Chris Kirby <Chris.Kirby@oracle.com> parents: 11823 diff changeset	3772 strfree(name);
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3773 if (error) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3774 dsl_dataset_rele(ds, dtag);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3775 return (error);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3776 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3777 #endif
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3778 if (!dsl_dataset_tryown(ds, B_TRUE, dtag)) {
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3779 dsl_dataset_rele(ds, dtag);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3780 return (EBUSY);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3781 } else {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3782 own = B_TRUE;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3783 dsl_dataset_make_exclusive(ds, dtag);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3784 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3785 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3786
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3787 ra = kmem_alloc(sizeof (struct dsl_ds_releasearg), KM_SLEEP);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3788 ra->ds = ds;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3789 ra->htag = ha->htag;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3790 ra->own = own;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3791 dsl_sync_task_create(ha->dstg, dsl_dataset_user_release_check,
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3792 dsl_dataset_user_release_sync, ra, dtag, 0);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3793
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3794 return (0);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3795 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3796
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3797 int
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3798 dsl_dataset_user_release(char dsname, char snapname, char *htag,
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3799 boolean_t recursive)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3800 {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3801 struct dsl_ds_holdarg *ha;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3802 dsl_sync_task_t *dst;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3803 spa_t *spa;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3804 int error;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3805
11546 42ea6be8961b 6915111 zfs_iter_snapshots() can miss snapshots Chris Kirby <Chris.Kirby@sun.com> parents: 11209 diff changeset	3806 top:
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3807 ha = kmem_zalloc(sizeof (struct dsl_ds_holdarg), KM_SLEEP);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3808
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3809 (void) strlcpy(ha->failed, dsname, sizeof (ha->failed));
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3810
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3811 error = spa_open(dsname, &spa, FTAG);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3812 if (error) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3813 kmem_free(ha, sizeof (struct dsl_ds_holdarg));
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3814 return (error);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3815 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3816
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3817 ha->dstg = dsl_sync_task_group_create(spa_get_dsl(spa));
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3818 ha->htag = htag;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3819 ha->snapname = snapname;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3820 ha->recursive = recursive;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3821 if (recursive) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3822 error = dmu_objset_find(dsname, dsl_dataset_user_release_one,
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3823 ha, DS_FIND_CHILDREN);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3824 } else {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3825 error = dsl_dataset_user_release_one(dsname, ha);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3826 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3827 if (error == 0)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3828 error = dsl_sync_task_group_wait(ha->dstg);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3829
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3830 for (dst = list_head(&ha->dstg->dstg_tasks); dst;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3831 dst = list_next(&ha->dstg->dstg_tasks, dst)) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3832 struct dsl_ds_releasearg *ra = dst->dst_arg1;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3833 dsl_dataset_t *ds = ra->ds;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3834
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3835 if (dst->dst_err)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3836 dsl_dataset_name(ds, ha->failed);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3837
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3838 if (ra->own)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3839 dsl_dataset_disown(ds, ha->dstg);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3840 else
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3841 dsl_dataset_rele(ds, ha->dstg);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3842
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3843 kmem_free(ra, sizeof (struct dsl_ds_releasearg));
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3844 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3845
10268 cb380b2e9410 6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot Chris Kirby <chris.kirby@sun.com> parents: 10242 diff changeset	3846 if (error == 0 && recursive && !ha->gotone)
cb380b2e9410 6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot Chris Kirby <chris.kirby@sun.com> parents: 10242 diff changeset	3847 error = ENOENT;
cb380b2e9410 6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot Chris Kirby <chris.kirby@sun.com> parents: 10242 diff changeset	3848
11546 42ea6be8961b 6915111 zfs_iter_snapshots() can miss snapshots Chris Kirby <Chris.Kirby@sun.com> parents: 11209 diff changeset	3849 if (error && error != EBUSY)
11209 462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	3850 (void) strlcpy(dsname, ha->failed, sizeof (ha->failed));
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3851
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3852 dsl_sync_task_group_destroy(ha->dstg);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3853 kmem_free(ha, sizeof (struct dsl_ds_holdarg));
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3854 spa_close(spa, FTAG);
11546 42ea6be8961b 6915111 zfs_iter_snapshots() can miss snapshots Chris Kirby <Chris.Kirby@sun.com> parents: 11209 diff changeset	3855
42ea6be8961b 6915111 zfs_iter_snapshots() can miss snapshots Chris Kirby <Chris.Kirby@sun.com> parents: 11209 diff changeset	3856 /*
42ea6be8961b 6915111 zfs_iter_snapshots() can miss snapshots Chris Kirby <Chris.Kirby@sun.com> parents: 11209 diff changeset	3857 * We can get EBUSY if we were racing with deferred destroy and
42ea6be8961b 6915111 zfs_iter_snapshots() can miss snapshots Chris Kirby <Chris.Kirby@sun.com> parents: 11209 diff changeset	3858 * dsl_dataset_user_release_check() hadn't done the necessary
42ea6be8961b 6915111 zfs_iter_snapshots() can miss snapshots Chris Kirby <Chris.Kirby@sun.com> parents: 11209 diff changeset	3859 * open context setup. We can also get EBUSY if we're racing
42ea6be8961b 6915111 zfs_iter_snapshots() can miss snapshots Chris Kirby <Chris.Kirby@sun.com> parents: 11209 diff changeset	3860 * with destroy and that thread is the ds_owner. Either way
42ea6be8961b 6915111 zfs_iter_snapshots() can miss snapshots Chris Kirby <Chris.Kirby@sun.com> parents: 11209 diff changeset	3861 * the busy condition should be transient, and we should retry
42ea6be8961b 6915111 zfs_iter_snapshots() can miss snapshots Chris Kirby <Chris.Kirby@sun.com> parents: 11209 diff changeset	3862 * the release operation.
42ea6be8961b 6915111 zfs_iter_snapshots() can miss snapshots Chris Kirby <Chris.Kirby@sun.com> parents: 11209 diff changeset	3863 */
42ea6be8961b 6915111 zfs_iter_snapshots() can miss snapshots Chris Kirby <Chris.Kirby@sun.com> parents: 11209 diff changeset	3864 if (error == EBUSY)
42ea6be8961b 6915111 zfs_iter_snapshots() can miss snapshots Chris Kirby <Chris.Kirby@sun.com> parents: 11209 diff changeset	3865 goto top;
42ea6be8961b 6915111 zfs_iter_snapshots() can miss snapshots Chris Kirby <Chris.Kirby@sun.com> parents: 11209 diff changeset	3866
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3867 return (error);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3868 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3869
10342 108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3870 /*
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3871 * Called at spa_load time to release a stale temporary user hold.
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3872 */
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3873 int
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3874 dsl_dataset_user_release_tmp(dsl_pool_t dp, uint64_t dsobj, char htag)
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3875 {
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3876 dsl_dataset_t *ds;
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3877 char *snap;
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3878 char *name;
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3879 int namelen;
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3880 int error;
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3881
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3882 rw_enter(&dp->dp_config_rwlock, RW_READER);
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3883 error = dsl_dataset_hold_obj(dp, dsobj, FTAG, &ds);
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3884 rw_exit(&dp->dp_config_rwlock);
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3885 if (error)
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3886 return (error);
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3887 namelen = dsl_dataset_namelen(ds)+1;
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3888 name = kmem_alloc(namelen, KM_SLEEP);
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3889 dsl_dataset_name(ds, name);
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3890 dsl_dataset_rele(ds, FTAG);
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3891
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3892 snap = strchr(name, '@');
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3893 *snap = '\0';
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3894 ++snap;
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3895 return (dsl_dataset_user_release(name, snap, htag, B_FALSE));
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3896 }
108f0058f837 6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures Chris Kirby <chris.kirby@sun.com> parents: 10298 diff changeset	3897
10242 c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3898 int
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3899 dsl_dataset_get_holds(const char dsname, nvlist_t *nvp)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3900 {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3901 dsl_dataset_t *ds;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3902 int err;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3903
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3904 err = dsl_dataset_hold(dsname, FTAG, &ds);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3905 if (err)
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3906 return (err);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3907
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3908 VERIFY(0 == nvlist_alloc(nvp, NV_UNIQUE_NAME, KM_SLEEP));
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3909 if (ds->ds_phys->ds_userrefs_obj != 0) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3910 zap_attribute_t *za;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3911 zap_cursor_t zc;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3912
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3913 za = kmem_alloc(sizeof (zap_attribute_t), KM_SLEEP);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3914 for (zap_cursor_init(&zc, ds->ds_dir->dd_pool->dp_meta_objset,
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3915 ds->ds_phys->ds_userrefs_obj);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3916 zap_cursor_retrieve(&zc, za) == 0;
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3917 zap_cursor_advance(&zc)) {
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3918 VERIFY(0 == nvlist_add_uint64(*nvp, za->za_name,
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3919 za->za_first_integer));
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3920 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3921 zap_cursor_fini(&zc);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3922 kmem_free(za, sizeof (zap_attribute_t));
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3923 }
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3924 dsl_dataset_rele(ds, FTAG);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3925 return (0);
c40d075fbca6 PSARC/2009/297 zfs snapshot holds Chris Kirby <chris.kirby@sun.com> parents: 10204 diff changeset	3926 }
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3927
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3928 /*
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3929 * Note, this fuction is used as the callback for dmu_objset_find(). We
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3930 * always return 0 so that we will continue to find and process
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3931 * inconsistent datasets, even if we encounter an error trying to
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3932 * process one of them.
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3933 */
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3934 /* ARGSUSED */
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3935 int
11209 462283cb4096 6905188 panic: kernel heap corruption when doing "zfs rename -r" Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 11022 diff changeset	3936 dsl_destroy_inconsistent(const char dsname, void arg)
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3937 {
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3938 dsl_dataset_t *ds;
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3939
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3940 if (dsl_dataset_own(dsname, B_TRUE, FTAG, &ds) == 0) {
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3941 if (DS_IS_INCONSISTENT(ds))
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3942 (void) dsl_dataset_destroy(ds, FTAG, B_FALSE);
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3943 else
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3944 dsl_dataset_disown(ds, FTAG);
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3945 }
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3946 return (0);
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10272 diff changeset	3947 }

Mercurial > illumos > illumos-gate

annotate usr/src/uts/common/fs/zfs/dsl_dataset.c @ 12527:693dd2cad55f