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

annotate usr/src/uts/common/fs/zfs/dsl_deadlist.c @ 13765:9410cf539b11

backout 3006: causes 3046 (panics after mounting root)

author	Richard Lowe <richlowe@richlowe.net>
date	Wed, 01 Aug 2012 16:40:39 -0400
parents	38b4aca480b3
children	8f78aae28a63

rev	line source
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	1 /*
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	2 * CDDL HEADER START
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	3 *
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	4 * The contents of this file are subject to the terms of the
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	5 * Common Development and Distribution License (the "License").
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	6 * You may not use this file except in compliance with the License.
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	7 *
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	9 * or http://www.opensolaris.org/os/licensing.
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	10 * See the License for the specific language governing permissions
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	11 * and limitations under the License.
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	12 *
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	13 * When distributing Covered Code, include this CDDL HEADER in each
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	15 * If applicable, add the following below this CDDL HEADER, with the
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	16 * fields enclosed by brackets "[]" replaced with your own identifying
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	17 * information: Portions Copyright [yyyy] [name of copyright owner]
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	18 *
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	19 * CDDL HEADER END
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	20 */
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	21 /*
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	22 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
13765 9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	23 * Copyright (c) 2011 by Delphix. All rights reserved.
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	24 */
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	25
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	26 #include <sys/dsl_dataset.h>
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	27 #include <sys/dmu.h>
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	28 #include <sys/refcount.h>
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	29 #include <sys/zap.h>
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	30 #include <sys/zfs_context.h>
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	31 #include <sys/dsl_pool.h>
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	32
13524 f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	33 /*
f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	34 * Deadlist concurrency:
f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	35 *
f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	36 * Deadlists can only be modified from the syncing thread.
f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	37 *
f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	38 * Except for dsl_deadlist_insert(), it can only be modified with the
f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	39 * dp_config_rwlock held with RW_WRITER.
f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	40 *
f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	41 * The accessors (dsl_deadlist_space() and dsl_deadlist_space_range()) can
f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	42 * be called concurrently, from open context, with the dl_config_rwlock held
f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	43 * with RW_READER.
f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	44 *
f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	45 * Therefore, we only need to provide locking between dsl_deadlist_insert() and
f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	46 * the accessors, protecting:
f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	47 * dl_phys->dl_used,comp,uncomp
f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	48 * and protecting the dl_tree from being loaded.
f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	49 * The locking is provided by dl_lock. Note that locking on the bpobj_t
f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	50 * provides its own locking, and dl_oldfmt is immutable.
f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	51 */
f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	52
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	53 static int
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	54 dsl_deadlist_compare(const void arg1, const void arg2)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	55 {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	56 const dsl_deadlist_entry_t *dle1 = arg1;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	57 const dsl_deadlist_entry_t *dle2 = arg2;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	58
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	59 if (dle1->dle_mintxg < dle2->dle_mintxg)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	60 return (-1);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	61 else if (dle1->dle_mintxg > dle2->dle_mintxg)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	62 return (+1);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	63 else
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	64 return (0);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	65 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	66
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	67 static void
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	68 dsl_deadlist_load_tree(dsl_deadlist_t *dl)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	69 {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	70 zap_cursor_t zc;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	71 zap_attribute_t za;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	72
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	73 ASSERT(!dl->dl_oldfmt);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	74 if (dl->dl_havetree)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	75 return;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	76
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	77 avl_create(&dl->dl_tree, dsl_deadlist_compare,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	78 sizeof (dsl_deadlist_entry_t),
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	79 offsetof(dsl_deadlist_entry_t, dle_node));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	80 for (zap_cursor_init(&zc, dl->dl_os, dl->dl_object);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	81 zap_cursor_retrieve(&zc, &za) == 0;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	82 zap_cursor_advance(&zc)) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	83 dsl_deadlist_entry_t dle = kmem_alloc(sizeof (dle), KM_SLEEP);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	84 dle->dle_mintxg = strtonum(za.za_name, NULL);
13765 9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	85 VERIFY3U(0, ==, bpobj_open(&dle->dle_bpobj, dl->dl_os,
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	86 za.za_first_integer));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	87 avl_add(&dl->dl_tree, dle);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	88 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	89 zap_cursor_fini(&zc);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	90 dl->dl_havetree = B_TRUE;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	91 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	92
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	93 void
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	94 dsl_deadlist_open(dsl_deadlist_t dl, objset_t os, uint64_t object)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	95 {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	96 dmu_object_info_t doi;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	97
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	98 mutex_init(&dl->dl_lock, NULL, MUTEX_DEFAULT, NULL);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	99 dl->dl_os = os;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	100 dl->dl_object = object;
13765 9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	101 VERIFY3U(0, ==, dmu_bonus_hold(os, object, dl, &dl->dl_dbuf));
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	102 dmu_object_info_from_db(dl->dl_dbuf, &doi);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	103 if (doi.doi_type == DMU_OT_BPOBJ) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	104 dmu_buf_rele(dl->dl_dbuf, dl);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	105 dl->dl_dbuf = NULL;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	106 dl->dl_oldfmt = B_TRUE;
13765 9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	107 VERIFY3U(0, ==, bpobj_open(&dl->dl_bpobj, os, object));
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	108 return;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	109 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	110
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	111 dl->dl_oldfmt = B_FALSE;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	112 dl->dl_phys = dl->dl_dbuf->db_data;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	113 dl->dl_havetree = B_FALSE;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	114 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	115
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	116 void
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	117 dsl_deadlist_close(dsl_deadlist_t *dl)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	118 {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	119 void *cookie = NULL;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	120 dsl_deadlist_entry_t *dle;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	121
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	122 if (dl->dl_oldfmt) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	123 dl->dl_oldfmt = B_FALSE;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	124 bpobj_close(&dl->dl_bpobj);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	125 return;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	126 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	127
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	128 if (dl->dl_havetree) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	129 while ((dle = avl_destroy_nodes(&dl->dl_tree, &cookie))
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	130 != NULL) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	131 bpobj_close(&dle->dle_bpobj);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	132 kmem_free(dle, sizeof (*dle));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	133 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	134 avl_destroy(&dl->dl_tree);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	135 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	136 dmu_buf_rele(dl->dl_dbuf, dl);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	137 mutex_destroy(&dl->dl_lock);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	138 dl->dl_dbuf = NULL;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	139 dl->dl_phys = NULL;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	140 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	141
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	142 uint64_t
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	143 dsl_deadlist_alloc(objset_t os, dmu_tx_t tx)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	144 {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	145 if (spa_version(dmu_objset_spa(os)) < SPA_VERSION_DEADLISTS)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	146 return (bpobj_alloc(os, SPA_MAXBLOCKSIZE, tx));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	147 return (zap_create(os, DMU_OT_DEADLIST, DMU_OT_DEADLIST_HDR,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	148 sizeof (dsl_deadlist_phys_t), tx));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	149 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	150
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	151 void
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	152 dsl_deadlist_free(objset_t os, uint64_t dlobj, dmu_tx_t tx)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	153 {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	154 dmu_object_info_t doi;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	155 zap_cursor_t zc;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	156 zap_attribute_t za;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	157
13765 9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	158 VERIFY3U(0, ==, dmu_object_info(os, dlobj, &doi));
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	159 if (doi.doi_type == DMU_OT_BPOBJ) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	160 bpobj_free(os, dlobj, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	161 return;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	162 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	163
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	164 for (zap_cursor_init(&zc, os, dlobj);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	165 zap_cursor_retrieve(&zc, &za) == 0;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	166 zap_cursor_advance(&zc))
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	167 bpobj_free(os, za.za_first_integer, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	168 zap_cursor_fini(&zc);
13765 9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	169 VERIFY3U(0, ==, dmu_object_free(os, dlobj, tx));
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	170 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	171
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	172 void
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	173 dsl_deadlist_insert(dsl_deadlist_t dl, 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: diff changeset	174 {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	175 dsl_deadlist_entry_t dle_tofind;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	176 dsl_deadlist_entry_t *dle;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	177 avl_index_t where;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	178
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	179 if (dl->dl_oldfmt) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	180 bpobj_enqueue(&dl->dl_bpobj, bp, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	181 return;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	182 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	183
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	184 dsl_deadlist_load_tree(dl);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	185
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	186 dmu_buf_will_dirty(dl->dl_dbuf, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	187 mutex_enter(&dl->dl_lock);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	188 dl->dl_phys->dl_used +=
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	189 bp_get_dsize_sync(dmu_objset_spa(dl->dl_os), bp);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	190 dl->dl_phys->dl_comp += BP_GET_PSIZE(bp);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	191 dl->dl_phys->dl_uncomp += BP_GET_UCSIZE(bp);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	192 mutex_exit(&dl->dl_lock);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	193
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	194 dle_tofind.dle_mintxg = bp->blk_birth;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	195 dle = avl_find(&dl->dl_tree, &dle_tofind, &where);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	196 if (dle == NULL)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	197 dle = avl_nearest(&dl->dl_tree, where, AVL_BEFORE);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	198 else
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	199 dle = AVL_PREV(&dl->dl_tree, dle);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	200 bpobj_enqueue(&dle->dle_bpobj, bp, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	201 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	202
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	203 /*
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	204 * Insert new key in deadlist, which must be > all current entries.
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	205 * mintxg is not inclusive.
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	206 */
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	207 void
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	208 dsl_deadlist_add_key(dsl_deadlist_t dl, 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: diff changeset	209 {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	210 uint64_t obj;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	211 dsl_deadlist_entry_t *dle;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	212
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	213 if (dl->dl_oldfmt)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	214 return;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	215
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	216 dsl_deadlist_load_tree(dl);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	217
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	218 dle = kmem_alloc(sizeof (*dle), KM_SLEEP);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	219 dle->dle_mintxg = mintxg;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	220 obj = bpobj_alloc(dl->dl_os, SPA_MAXBLOCKSIZE, tx);
13765 9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	221 VERIFY3U(0, ==, bpobj_open(&dle->dle_bpobj, dl->dl_os, obj));
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	222 avl_add(&dl->dl_tree, dle);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	223
13765 9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	224 VERIFY3U(0, ==, zap_add_int_key(dl->dl_os, dl->dl_object,
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	225 mintxg, obj, tx));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	226 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	227
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	228 /*
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	229 * Remove this key, merging its entries into the previous key.
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	230 */
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	231 void
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	232 dsl_deadlist_remove_key(dsl_deadlist_t dl, 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: diff changeset	233 {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	234 dsl_deadlist_entry_t dle_tofind;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	235 dsl_deadlist_entry_t dle, dle_prev;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	236
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	237 if (dl->dl_oldfmt)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	238 return;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	239
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	240 dsl_deadlist_load_tree(dl);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	241
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	242 dle_tofind.dle_mintxg = mintxg;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	243 dle = avl_find(&dl->dl_tree, &dle_tofind, NULL);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	244 dle_prev = AVL_PREV(&dl->dl_tree, dle);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	245
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	246 bpobj_enqueue_subobj(&dle_prev->dle_bpobj,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	247 dle->dle_bpobj.bpo_object, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	248
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	249 avl_remove(&dl->dl_tree, dle);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	250 bpobj_close(&dle->dle_bpobj);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	251 kmem_free(dle, sizeof (*dle));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	252
13765 9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	253 VERIFY3U(0, ==, zap_remove_int(dl->dl_os, dl->dl_object, mintxg, tx));
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	254 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	255
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	256 /*
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	257 * Walk ds's snapshots to regenerate generate ZAP & AVL.
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	258 */
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	259 static void
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	260 dsl_deadlist_regenerate(objset_t *os, uint64_t dlobj,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	261 uint64_t mrs_obj, dmu_tx_t *tx)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	262 {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	263 dsl_deadlist_t dl;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	264 dsl_pool_t *dp = dmu_objset_pool(os);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	265
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	266 dsl_deadlist_open(&dl, os, dlobj);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	267 if (dl.dl_oldfmt) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	268 dsl_deadlist_close(&dl);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	269 return;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	270 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	271
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	272 while (mrs_obj != 0) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	273 dsl_dataset_t *ds;
13765 9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	274 VERIFY3U(0, ==, dsl_dataset_hold_obj(dp, mrs_obj, FTAG, &ds));
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	275 dsl_deadlist_add_key(&dl, 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: diff changeset	276 mrs_obj = ds->ds_phys->ds_prev_snap_obj;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	277 dsl_dataset_rele(ds, FTAG);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	278 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	279 dsl_deadlist_close(&dl);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	280 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	281
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	282 uint64_t
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	283 dsl_deadlist_clone(dsl_deadlist_t *dl, uint64_t maxtxg,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	284 uint64_t mrs_obj, dmu_tx_t *tx)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	285 {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	286 dsl_deadlist_entry_t *dle;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	287 uint64_t newobj;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	288
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	289 newobj = dsl_deadlist_alloc(dl->dl_os, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	290
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	291 if (dl->dl_oldfmt) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	292 dsl_deadlist_regenerate(dl->dl_os, newobj, mrs_obj, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	293 return (newobj);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	294 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	295
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	296 dsl_deadlist_load_tree(dl);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	297
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	298 for (dle = avl_first(&dl->dl_tree); dle;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	299 dle = AVL_NEXT(&dl->dl_tree, dle)) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	300 uint64_t obj;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	301
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	302 if (dle->dle_mintxg >= maxtxg)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	303 break;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	304
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	305 obj = bpobj_alloc(dl->dl_os, SPA_MAXBLOCKSIZE, tx);
13765 9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	306 VERIFY3U(0, ==, zap_add_int_key(dl->dl_os, newobj,
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	307 dle->dle_mintxg, obj, tx));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	308 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	309 return (newobj);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	310 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	311
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	312 void
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	313 dsl_deadlist_space(dsl_deadlist_t *dl,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	314 uint64_t usedp, uint64_t compp, uint64_t *uncompp)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	315 {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	316 if (dl->dl_oldfmt) {
13765 9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	317 VERIFY3U(0, ==, bpobj_space(&dl->dl_bpobj,
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	318 usedp, compp, uncompp));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	319 return;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	320 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	321
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	322 mutex_enter(&dl->dl_lock);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	323 *usedp = dl->dl_phys->dl_used;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	324 *compp = dl->dl_phys->dl_comp;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	325 *uncompp = dl->dl_phys->dl_uncomp;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	326 mutex_exit(&dl->dl_lock);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	327 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	328
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	329 /*
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	330 * return space used in the range (mintxg, maxtxg].
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	331 * Includes maxtxg, does not include mintxg.
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	332 * mintxg and maxtxg must both be keys in the deadlist (unless maxtxg is
13524 f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	333 * larger than any bp in the deadlist (eg. UINT64_MAX)).
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	334 */
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	335 void
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	336 dsl_deadlist_space_range(dsl_deadlist_t *dl, uint64_t mintxg, uint64_t maxtxg,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	337 uint64_t usedp, uint64_t compp, uint64_t *uncompp)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	338 {
13524 f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	339 dsl_deadlist_entry_t *dle;
13512 060607df0c9d backout 1644/1645/1646/1647/1708: Breaks 'zfs snapshot', boot environments Richard Lowe <richlowe@richlowe.net> parents: 13509 diff changeset	340 dsl_deadlist_entry_t dle_tofind;
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	341 avl_index_t where;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	342
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	343 if (dl->dl_oldfmt) {
13765 9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	344 VERIFY3U(0, ==, bpobj_space_range(&dl->dl_bpobj,
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	345 mintxg, maxtxg, usedp, compp, uncompp));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	346 return;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	347 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	348
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	349 usedp = compp = *uncompp = 0;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	350
13524 f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	351 mutex_enter(&dl->dl_lock);
f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	352 dsl_deadlist_load_tree(dl);
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	353 dle_tofind.dle_mintxg = mintxg;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	354 dle = avl_find(&dl->dl_tree, &dle_tofind, &where);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	355 /*
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	356 * If we don't find this mintxg, there shouldn't be anything
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	357 * after it either.
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	358 */
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	359 ASSERT(dle != NULL \|\|
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	360 avl_nearest(&dl->dl_tree, where, AVL_AFTER) == NULL);
13524 f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	361
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	362 for (; dle && dle->dle_mintxg < maxtxg;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	363 dle = AVL_NEXT(&dl->dl_tree, dle)) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	364 uint64_t used, comp, uncomp;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	365
13765 9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	366 VERIFY3U(0, ==, bpobj_space(&dle->dle_bpobj,
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	367 &used, &comp, &uncomp));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	368
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	369 *usedp += used;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	370 *compp += comp;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	371 *uncompp += uncomp;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	372 }
13524 f0e12b33f77c 1644 add ZFS "clones" property Matthew Ahrens <matt@delphix.com> parents: 13512 diff changeset	373 mutex_exit(&dl->dl_lock);
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	374 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	375
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	376 static void
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	377 dsl_deadlist_insert_bpobj(dsl_deadlist_t *dl, uint64_t obj, uint64_t birth,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	378 dmu_tx_t *tx)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	379 {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	380 dsl_deadlist_entry_t dle_tofind;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	381 dsl_deadlist_entry_t *dle;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	382 avl_index_t where;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	383 uint64_t used, comp, uncomp;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	384 bpobj_t bpo;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	385
13765 9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	386 VERIFY3U(0, ==, bpobj_open(&bpo, dl->dl_os, obj));
9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	387 VERIFY3U(0, ==, bpobj_space(&bpo, &used, &comp, &uncomp));
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	388 bpobj_close(&bpo);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	389
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	390 dsl_deadlist_load_tree(dl);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	391
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	392 dmu_buf_will_dirty(dl->dl_dbuf, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	393 mutex_enter(&dl->dl_lock);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	394 dl->dl_phys->dl_used += used;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	395 dl->dl_phys->dl_comp += comp;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	396 dl->dl_phys->dl_uncomp += uncomp;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	397 mutex_exit(&dl->dl_lock);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	398
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	399 dle_tofind.dle_mintxg = birth;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	400 dle = avl_find(&dl->dl_tree, &dle_tofind, &where);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	401 if (dle == NULL)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	402 dle = avl_nearest(&dl->dl_tree, where, AVL_BEFORE);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	403 bpobj_enqueue_subobj(&dle->dle_bpobj, obj, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	404 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	405
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	406 static int
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	407 dsl_deadlist_insert_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: diff changeset	408 {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	409 dsl_deadlist_t *dl = arg;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	410 dsl_deadlist_insert(dl, bp, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	411 return (0);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	412 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	413
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	414 /*
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	415 * Merge the deadlist pointed to by 'obj' into dl. obj will be left as
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	416 * an empty deadlist.
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	417 */
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	418 void
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	419 dsl_deadlist_merge(dsl_deadlist_t dl, uint64_t obj, dmu_tx_t tx)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	420 {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	421 zap_cursor_t zc;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	422 zap_attribute_t za;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	423 dmu_buf_t *bonus;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	424 dsl_deadlist_phys_t *dlp;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	425 dmu_object_info_t doi;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	426
13765 9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	427 VERIFY3U(0, ==, dmu_object_info(dl->dl_os, obj, &doi));
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	428 if (doi.doi_type == DMU_OT_BPOBJ) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	429 bpobj_t bpo;
13765 9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	430 VERIFY3U(0, ==, bpobj_open(&bpo, dl->dl_os, obj));
9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	431 VERIFY3U(0, ==, bpobj_iterate(&bpo,
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	432 dsl_deadlist_insert_cb, dl, tx));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	433 bpobj_close(&bpo);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	434 return;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	435 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	436
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	437 for (zap_cursor_init(&zc, dl->dl_os, obj);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	438 zap_cursor_retrieve(&zc, &za) == 0;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	439 zap_cursor_advance(&zc)) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	440 uint64_t mintxg = strtonum(za.za_name, NULL);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	441 dsl_deadlist_insert_bpobj(dl, za.za_first_integer, mintxg, tx);
13765 9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	442 VERIFY3U(0, ==, zap_remove_int(dl->dl_os, obj, mintxg, tx));
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	443 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	444 zap_cursor_fini(&zc);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	445
13765 9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	446 VERIFY3U(0, ==, dmu_bonus_hold(dl->dl_os, obj, FTAG, &bonus));
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	447 dlp = bonus->db_data;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	448 dmu_buf_will_dirty(bonus, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	449 bzero(dlp, sizeof (*dlp));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	450 dmu_buf_rele(bonus, FTAG);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	451 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	452
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	453 /*
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	454 * Remove entries on dl that are >= mintxg, and put them on the bpobj.
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	455 */
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	456 void
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	457 dsl_deadlist_move_bpobj(dsl_deadlist_t dl, bpobj_t bpo, uint64_t mintxg,
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	458 dmu_tx_t *tx)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	459 {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	460 dsl_deadlist_entry_t dle_tofind;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	461 dsl_deadlist_entry_t *dle;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	462 avl_index_t where;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	463
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	464 ASSERT(!dl->dl_oldfmt);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	465 dmu_buf_will_dirty(dl->dl_dbuf, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	466 dsl_deadlist_load_tree(dl);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	467
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	468 dle_tofind.dle_mintxg = mintxg;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	469 dle = avl_find(&dl->dl_tree, &dle_tofind, &where);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	470 if (dle == NULL)
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	471 dle = avl_nearest(&dl->dl_tree, where, AVL_AFTER);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	472 while (dle) {
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	473 uint64_t used, comp, uncomp;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	474 dsl_deadlist_entry_t *dle_next;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	475
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	476 bpobj_enqueue_subobj(bpo, dle->dle_bpobj.bpo_object, tx);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	477
13765 9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	478 VERIFY3U(0, ==, bpobj_space(&dle->dle_bpobj,
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	479 &used, &comp, &uncomp));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	480 mutex_enter(&dl->dl_lock);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	481 ASSERT3U(dl->dl_phys->dl_used, >=, used);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	482 ASSERT3U(dl->dl_phys->dl_comp, >=, comp);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	483 ASSERT3U(dl->dl_phys->dl_uncomp, >=, uncomp);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	484 dl->dl_phys->dl_used -= used;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	485 dl->dl_phys->dl_comp -= comp;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	486 dl->dl_phys->dl_uncomp -= uncomp;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	487 mutex_exit(&dl->dl_lock);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	488
13765 9410cf539b11 backout 3006: causes 3046 (panics after mounting root) Richard Lowe <richlowe@richlowe.net> parents: 13764 diff changeset	489 VERIFY3U(0, ==, zap_remove_int(dl->dl_os, dl->dl_object,
12470 54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	490 dle->dle_mintxg, tx));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	491
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	492 dle_next = AVL_NEXT(&dl->dl_tree, dle);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	493 avl_remove(&dl->dl_tree, dle);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	494 bpobj_close(&dle->dle_bpobj);
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	495 kmem_free(dle, sizeof (*dle));
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	496 dle = dle_next;
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	497 }
54258108784b 6948890 snapshot deletion can induce pathologically long spa_sync() times Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: diff changeset	498 }

Mercurial > illumos > illumos-gate

annotate usr/src/uts/common/fs/zfs/dsl_deadlist.c @ 13765:9410cf539b11