illumos/illumos-gate: usr/src/uts/common/fs/zfs/dmu.c annotate

annotate usr/src/uts/common/fs/zfs/dmu.c @ 13776:cd512c80fd75

3086 unnecessarily setting DS_FLAG_INCONSISTENT on async destroyed datasets Reviewed by: Christopher Siden <chris.siden@delphix.com> Approved by: Eric Schrock <Eric.Schrock@delphix.com>

author	Matthew Ahrens <mahrens@delphix.com>
date	Tue, 21 Aug 2012 04:36:41 -0700
parents	2889e2596bd6
children	196932ec9e6a

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: 789 diff changeset	5 * Common Development and Distribution License (the "License").
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 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 /*
12123 bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
13700 2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	23 * Copyright (c) 2012 by Delphix. All rights reserved.
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	24 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	25
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	26 #include <sys/dmu.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	27 #include <sys/dmu_impl.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	28 #include <sys/dmu_tx.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	29 #include <sys/dbuf.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	30 #include <sys/dnode.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	31 #include <sys/zfs_context.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	32 #include <sys/dmu_objset.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	33 #include <sys/dmu_traverse.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	34 #include <sys/dsl_dataset.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	35 #include <sys/dsl_dir.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	36 #include <sys/dsl_pool.h>
2199 712a788c2dfd PSARC 2006/388 snapshot -r ahrens parents: 2082 diff changeset	37 #include <sys/dsl_synctask.h>
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2743 diff changeset	38 #include <sys/dsl_prop.h>
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	39 #include <sys/dmu_zfetch.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	40 #include <sys/zfs_ioctl.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	41 #include <sys/zap.h>
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	42 #include <sys/zio_checksum.h>
11935 538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	43 #include <sys/sa.h>
2688 12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	44 #ifdef _KERNEL
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	45 #include <sys/vmsystm.h>
7315 cdba25672122 6735592 "zio" vmem arenas are confusing, not reported separately Jonathan W Adams <Jonathan.Adams@Sun.COM> parents: 7237 diff changeset	46 #include <sys/zfs_znode.h>
2688 12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	47 #endif
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	48
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	49 const dmu_object_type_info_t dmu_ot[DMU_OT_NUMTYPES] = {
13700 2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	50 { DMU_BSWAP_UINT8, TRUE, "unallocated" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	51 { DMU_BSWAP_ZAP, TRUE, "object directory" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	52 { DMU_BSWAP_UINT64, TRUE, "object array" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	53 { DMU_BSWAP_UINT8, TRUE, "packed nvlist" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	54 { DMU_BSWAP_UINT64, TRUE, "packed nvlist size" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	55 { DMU_BSWAP_UINT64, TRUE, "bpobj" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	56 { DMU_BSWAP_UINT64, TRUE, "bpobj header" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	57 { DMU_BSWAP_UINT64, TRUE, "SPA space map header" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	58 { DMU_BSWAP_UINT64, TRUE, "SPA space map" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	59 { DMU_BSWAP_UINT64, TRUE, "ZIL intent log" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	60 { DMU_BSWAP_DNODE, TRUE, "DMU dnode" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	61 { DMU_BSWAP_OBJSET, TRUE, "DMU objset" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	62 { DMU_BSWAP_UINT64, TRUE, "DSL directory" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	63 { DMU_BSWAP_ZAP, TRUE, "DSL directory child map"},
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	64 { DMU_BSWAP_ZAP, TRUE, "DSL dataset snap map" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	65 { DMU_BSWAP_ZAP, TRUE, "DSL props" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	66 { DMU_BSWAP_UINT64, TRUE, "DSL dataset" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	67 { DMU_BSWAP_ZNODE, TRUE, "ZFS znode" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	68 { DMU_BSWAP_OLDACL, TRUE, "ZFS V0 ACL" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	69 { DMU_BSWAP_UINT8, FALSE, "ZFS plain file" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	70 { DMU_BSWAP_ZAP, TRUE, "ZFS directory" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	71 { DMU_BSWAP_ZAP, TRUE, "ZFS master node" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	72 { DMU_BSWAP_ZAP, TRUE, "ZFS delete queue" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	73 { DMU_BSWAP_UINT8, FALSE, "zvol object" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	74 { DMU_BSWAP_ZAP, TRUE, "zvol prop" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	75 { DMU_BSWAP_UINT8, FALSE, "other uint8[]" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	76 { DMU_BSWAP_UINT64, FALSE, "other uint64[]" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	77 { DMU_BSWAP_ZAP, TRUE, "other ZAP" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	78 { DMU_BSWAP_ZAP, TRUE, "persistent error log" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	79 { DMU_BSWAP_UINT8, TRUE, "SPA history" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	80 { DMU_BSWAP_UINT64, TRUE, "SPA history offsets" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	81 { DMU_BSWAP_ZAP, TRUE, "Pool properties" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	82 { DMU_BSWAP_ZAP, TRUE, "DSL permissions" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	83 { DMU_BSWAP_ACL, TRUE, "ZFS ACL" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	84 { DMU_BSWAP_UINT8, TRUE, "ZFS SYSACL" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	85 { DMU_BSWAP_UINT8, TRUE, "FUID table" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	86 { DMU_BSWAP_UINT64, TRUE, "FUID table size" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	87 { DMU_BSWAP_ZAP, TRUE, "DSL dataset next clones"},
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	88 { DMU_BSWAP_ZAP, TRUE, "scan work queue" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	89 { DMU_BSWAP_ZAP, TRUE, "ZFS user/group used" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	90 { DMU_BSWAP_ZAP, TRUE, "ZFS user/group quota" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	91 { DMU_BSWAP_ZAP, TRUE, "snapshot refcount tags"},
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	92 { DMU_BSWAP_ZAP, TRUE, "DDT ZAP algorithm" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	93 { DMU_BSWAP_ZAP, TRUE, "DDT statistics" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	94 { DMU_BSWAP_UINT8, TRUE, "System attributes" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	95 { DMU_BSWAP_ZAP, TRUE, "SA master node" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	96 { DMU_BSWAP_ZAP, TRUE, "SA attr registration" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	97 { DMU_BSWAP_ZAP, TRUE, "SA attr layouts" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	98 { DMU_BSWAP_ZAP, TRUE, "scan translations" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	99 { DMU_BSWAP_UINT8, FALSE, "deduplicated block" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	100 { DMU_BSWAP_ZAP, TRUE, "DSL deadlist map" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	101 { DMU_BSWAP_UINT64, TRUE, "DSL deadlist map hdr" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	102 { DMU_BSWAP_ZAP, TRUE, "DSL dir clones" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	103 { DMU_BSWAP_UINT64, TRUE, "bpobj subobj" }
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	104 };
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	105
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	106 const dmu_object_byteswap_info_t dmu_ot_byteswap[DMU_BSWAP_NUMFUNCS] = {
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	107 { byteswap_uint8_array, "uint8" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	108 { byteswap_uint16_array, "uint16" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	109 { byteswap_uint32_array, "uint32" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	110 { byteswap_uint64_array, "uint64" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	111 { zap_byteswap, "zap" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	112 { dnode_buf_byteswap, "dnode" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	113 { dmu_objset_byteswap, "objset" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	114 { zfs_znode_byteswap, "znode" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	115 { zfs_oldacl_byteswap, "oldacl" },
2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	116 { zfs_acl_byteswap, "acl" }
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12285 diff changeset	117 };
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	118
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	119 int
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	120 dmu_buf_hold(objset_t *os, uint64_t object, uint64_t offset,
12285 d736d62dcca2 6944833 Avoid prefetching dbufs in dmu_sync() path Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 12178 diff changeset	121 void tag, dmu_buf_t *dbp, int flags)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	122 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	123 dnode_t *dn;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	124 uint64_t blkid;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	125 dmu_buf_impl_t *db;
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	126 int err;
12285 d736d62dcca2 6944833 Avoid prefetching dbufs in dmu_sync() path Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 12178 diff changeset	127 int db_flags = DB_RF_CANFAIL;
d736d62dcca2 6944833 Avoid prefetching dbufs in dmu_sync() path Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 12178 diff changeset	128
d736d62dcca2 6944833 Avoid prefetching dbufs in dmu_sync() path Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 12178 diff changeset	129 if (flags & DMU_READ_NO_PREFETCH)
d736d62dcca2 6944833 Avoid prefetching dbufs in dmu_sync() path Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 12178 diff changeset	130 db_flags \|= DB_RF_NOPREFETCH;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	131
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10242 diff changeset	132 err = dnode_hold(os, object, FTAG, &dn);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	133 if (err)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	134 return (err);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	135 blkid = dbuf_whichblock(dn, offset);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	136 rw_enter(&dn->dn_struct_rwlock, RW_READER);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	137 db = dbuf_hold(dn, blkid, tag);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	138 rw_exit(&dn->dn_struct_rwlock);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	139 if (db == NULL) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	140 err = EIO;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	141 } else {
12285 d736d62dcca2 6944833 Avoid prefetching dbufs in dmu_sync() path Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 12178 diff changeset	142 err = dbuf_read(db, NULL, db_flags);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	143 if (err) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	144 dbuf_rele(db, tag);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	145 db = NULL;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	146 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	147 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	148
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	149 dnode_rele(dn, FTAG);
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	150 dbp = &db->db; / NULL db plus first field offset is NULL */
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	151 return (err);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	152 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	153
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	154 int
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	155 dmu_bonus_max(void)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	156 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	157 return (DN_MAX_BONUSLEN);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	158 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	159
4944 96d96f8de974 6569719 panic dangling dbufs (dn=ffffffff28814d30, dbuf=ffffffff20756008) maybee parents: 4543 diff changeset	160 int
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	161 dmu_set_bonus(dmu_buf_t db_fake, int newsize, dmu_tx_t tx)
4944 96d96f8de974 6569719 panic dangling dbufs (dn=ffffffff28814d30, dbuf=ffffffff20756008) maybee parents: 4543 diff changeset	162 {
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	163 dmu_buf_impl_t db = (dmu_buf_impl_t )db_fake;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	164 dnode_t *dn;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	165 int error;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	166
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	167 DB_DNODE_ENTER(db);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	168 dn = DB_DNODE(db);
4944 96d96f8de974 6569719 panic dangling dbufs (dn=ffffffff28814d30, dbuf=ffffffff20756008) maybee parents: 4543 diff changeset	169
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	170 if (dn->dn_bonus != db) {
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	171 error = EINVAL;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	172 } else if (newsize < 0 \|\| newsize > db_fake->db_size) {
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	173 error = EINVAL;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	174 } else {
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	175 dnode_setbonuslen(dn, newsize, tx);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	176 error = 0;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	177 }
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	178
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	179 DB_DNODE_EXIT(db);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	180 return (error);
4944 96d96f8de974 6569719 panic dangling dbufs (dn=ffffffff28814d30, dbuf=ffffffff20756008) maybee parents: 4543 diff changeset	181 }
96d96f8de974 6569719 panic dangling dbufs (dn=ffffffff28814d30, dbuf=ffffffff20756008) maybee parents: 4543 diff changeset	182
11935 538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	183 int
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	184 dmu_set_bonustype(dmu_buf_t db_fake, dmu_object_type_t type, dmu_tx_t tx)
11935 538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	185 {
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	186 dmu_buf_impl_t db = (dmu_buf_impl_t )db_fake;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	187 dnode_t *dn;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	188 int error;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	189
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	190 DB_DNODE_ENTER(db);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	191 dn = DB_DNODE(db);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	192
13700 2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	193 if (!DMU_OT_IS_VALID(type)) {
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	194 error = EINVAL;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	195 } else if (dn->dn_bonus != db) {
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	196 error = EINVAL;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	197 } else {
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	198 dnode_setbonus_type(dn, type, tx);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	199 error = 0;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	200 }
11935 538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	201
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	202 DB_DNODE_EXIT(db);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	203 return (error);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	204 }
11935 538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	205
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	206 dmu_object_type_t
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	207 dmu_get_bonustype(dmu_buf_t *db_fake)
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	208 {
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	209 dmu_buf_impl_t db = (dmu_buf_impl_t )db_fake;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	210 dnode_t *dn;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	211 dmu_object_type_t type;
11935 538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	212
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	213 DB_DNODE_ENTER(db);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	214 dn = DB_DNODE(db);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	215 type = dn->dn_bonustype;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	216 DB_DNODE_EXIT(db);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	217
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	218 return (type);
11935 538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	219 }
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	220
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	221 int
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	222 dmu_rm_spill(objset_t os, uint64_t object, dmu_tx_t tx)
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	223 {
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	224 dnode_t *dn;
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	225 int error;
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	226
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	227 error = dnode_hold(os, object, FTAG, &dn);
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	228 dbuf_rm_spill(dn, tx);
12178 93ec1371f750 6939983 assertion failed: zap_count(os, DMU_USERUSED_OBJECT, &count) != 0\|\|count == 0, in dsl_dataset.c Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 12123 diff changeset	229 rw_enter(&dn->dn_struct_rwlock, RW_WRITER);
93ec1371f750 6939983 assertion failed: zap_count(os, DMU_USERUSED_OBJECT, &count) != 0\|\|count == 0, in dsl_dataset.c Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 12123 diff changeset	230 dnode_rm_spill(dn, tx);
93ec1371f750 6939983 assertion failed: zap_count(os, DMU_USERUSED_OBJECT, &count) != 0\|\|count == 0, in dsl_dataset.c Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 12123 diff changeset	231 rw_exit(&dn->dn_struct_rwlock);
11935 538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	232 dnode_rele(dn, FTAG);
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	233 return (error);
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	234 }
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	235
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	236 /*
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	237 * returns ENOENT, EIO, or 0.
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	238 */
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	239 int
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	240 dmu_bonus_hold(objset_t os, uint64_t object, void tag, dmu_buf_t **dbp)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	241 {
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	242 dnode_t *dn;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	243 dmu_buf_impl_t *db;
4944 96d96f8de974 6569719 panic dangling dbufs (dn=ffffffff28814d30, dbuf=ffffffff20756008) maybee parents: 4543 diff changeset	244 int error;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	245
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10242 diff changeset	246 error = dnode_hold(os, object, FTAG, &dn);
4944 96d96f8de974 6569719 panic dangling dbufs (dn=ffffffff28814d30, dbuf=ffffffff20756008) maybee parents: 4543 diff changeset	247 if (error)
96d96f8de974 6569719 panic dangling dbufs (dn=ffffffff28814d30, dbuf=ffffffff20756008) maybee parents: 4543 diff changeset	248 return (error);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	249
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	250 rw_enter(&dn->dn_struct_rwlock, RW_READER);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	251 if (dn->dn_bonus == NULL) {
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	252 rw_exit(&dn->dn_struct_rwlock);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	253 rw_enter(&dn->dn_struct_rwlock, RW_WRITER);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	254 if (dn->dn_bonus == NULL)
4944 96d96f8de974 6569719 panic dangling dbufs (dn=ffffffff28814d30, dbuf=ffffffff20756008) maybee parents: 4543 diff changeset	255 dbuf_create_bonus(dn);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	256 }
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	257 db = dn->dn_bonus;
4944 96d96f8de974 6569719 panic dangling dbufs (dn=ffffffff28814d30, dbuf=ffffffff20756008) maybee parents: 4543 diff changeset	258
96d96f8de974 6569719 panic dangling dbufs (dn=ffffffff28814d30, dbuf=ffffffff20756008) maybee parents: 4543 diff changeset	259 /* as long as the bonus buf is held, the dnode will be held */
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	260 if (refcount_add(&db->db_holds, tag) == 1) {
4944 96d96f8de974 6569719 panic dangling dbufs (dn=ffffffff28814d30, dbuf=ffffffff20756008) maybee parents: 4543 diff changeset	261 VERIFY(dnode_add_ref(dn, db));
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	262 (void) atomic_inc_32_nv(&dn->dn_dbufs_count);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	263 }
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	264
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	265 /*
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	266 * Wait to drop dn_struct_rwlock until after adding the bonus dbuf's
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	267 * hold and incrementing the dbuf count to ensure that dnode_move() sees
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	268 * a dnode hold for every dbuf.
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	269 */
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	270 rw_exit(&dn->dn_struct_rwlock);
4944 96d96f8de974 6569719 panic dangling dbufs (dn=ffffffff28814d30, dbuf=ffffffff20756008) maybee parents: 4543 diff changeset	271
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	272 dnode_rele(dn, FTAG);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	273
12285 d736d62dcca2 6944833 Avoid prefetching dbufs in dmu_sync() path Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 12178 diff changeset	274 VERIFY(0 == dbuf_read(db, NULL, DB_RF_MUST_SUCCEED \| DB_RF_NOPREFETCH));
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	275
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	276 *dbp = &db->db;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	277 return (0);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	278 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	279
2391 2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	280 /*
11935 538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	281 * returns ENOENT, EIO, or 0.
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	282 *
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	283 * This interface will allocate a blank spill dbuf when a spill blk
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	284 * doesn't already exist on the dnode.
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	285 *
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	286 * if you only want to find an already existing spill db, then
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	287 * dmu_spill_hold_existing() should be used.
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	288 */
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	289 int
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	290 dmu_spill_hold_by_dnode(dnode_t dn, uint32_t flags, void tag, dmu_buf_t **dbp)
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	291 {
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	292 dmu_buf_impl_t *db = NULL;
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	293 int err;
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	294
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	295 if ((flags & DB_RF_HAVESTRUCT) == 0)
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	296 rw_enter(&dn->dn_struct_rwlock, RW_READER);
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	297
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	298 db = dbuf_hold(dn, DMU_SPILL_BLKID, tag);
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	299
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	300 if ((flags & DB_RF_HAVESTRUCT) == 0)
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	301 rw_exit(&dn->dn_struct_rwlock);
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	302
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	303 ASSERT(db != NULL);
12493 89ce40422cea 6952177 SA handling of on-disk corruption can be improved Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM> parents: 12470 diff changeset	304 err = dbuf_read(db, NULL, flags);
89ce40422cea 6952177 SA handling of on-disk corruption can be improved Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM> parents: 12470 diff changeset	305 if (err == 0)
89ce40422cea 6952177 SA handling of on-disk corruption can be improved Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM> parents: 12470 diff changeset	306 *dbp = &db->db;
89ce40422cea 6952177 SA handling of on-disk corruption can be improved Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM> parents: 12470 diff changeset	307 else
89ce40422cea 6952177 SA handling of on-disk corruption can be improved Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM> parents: 12470 diff changeset	308 dbuf_rele(db, tag);
11935 538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	309 return (err);
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	310 }
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	311
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	312 int
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	313 dmu_spill_hold_existing(dmu_buf_t bonus, void tag, dmu_buf_t **dbp)
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	314 {
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	315 dmu_buf_impl_t db = (dmu_buf_impl_t )bonus;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	316 dnode_t *dn;
11935 538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	317 int err;
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	318
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	319 DB_DNODE_ENTER(db);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	320 dn = DB_DNODE(db);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	321
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	322 if (spa_version(dn->dn_objset->os_spa) < SPA_VERSION_SA) {
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	323 err = EINVAL;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	324 } else {
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	325 rw_enter(&dn->dn_struct_rwlock, RW_READER);
11935 538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	326
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	327 if (!dn->dn_have_spill) {
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	328 err = ENOENT;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	329 } else {
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	330 err = dmu_spill_hold_by_dnode(dn,
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	331 DB_RF_HAVESTRUCT \| DB_RF_CANFAIL, tag, dbp);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	332 }
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	333
11935 538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	334 rw_exit(&dn->dn_struct_rwlock);
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	335 }
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	336
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	337 DB_DNODE_EXIT(db);
11935 538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	338 return (err);
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	339 }
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	340
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	341 int
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	342 dmu_spill_hold_by_bonus(dmu_buf_t bonus, void tag, dmu_buf_t **dbp)
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	343 {
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	344 dmu_buf_impl_t db = (dmu_buf_impl_t )bonus;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	345 dnode_t *dn;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	346 int err;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	347
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	348 DB_DNODE_ENTER(db);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	349 dn = DB_DNODE(db);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	350 err = dmu_spill_hold_by_dnode(dn, DB_RF_CANFAIL, tag, dbp);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	351 DB_DNODE_EXIT(db);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	352
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	353 return (err);
11935 538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	354 }
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	355
538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	356 /*
2391 2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	357 * Note: longer-term, we should modify all of the dmu_buf_*() interfaces
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	358 * to take a held dnode rather than <os, object> -- the lookup is wasteful,
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	359 * and can induce severe lock contention when writing to several files
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	360 * whose dnodes are in the same block.
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	361 */
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	362 static int
9512 64cafcbcc337 6801810 Commit of aligned streaming rewrites to ZIL device causes unwanted disk reads Neil Perrin <Neil.Perrin@Sun.COM> parents: 9412 diff changeset	363 dmu_buf_hold_array_by_dnode(dnode_t *dn, uint64_t offset, uint64_t length,
64cafcbcc337 6801810 Commit of aligned streaming rewrites to ZIL device causes unwanted disk reads Neil Perrin <Neil.Perrin@Sun.COM> parents: 9412 diff changeset	364 int read, void tag, int numbufsp, dmu_buf_t ***dbpp, uint32_t flags)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	365 {
7468 23915842aa09 6687412 zfs stuck issuing small txg Mark Maybee <Mark.Maybee@Sun.COM> parents: 7385 diff changeset	366 dsl_pool_t *dp = NULL;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	367 dmu_buf_t **dbp;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	368 uint64_t blkid, nblks, i;
9512 64cafcbcc337 6801810 Commit of aligned streaming rewrites to ZIL device causes unwanted disk reads Neil Perrin <Neil.Perrin@Sun.COM> parents: 9412 diff changeset	369 uint32_t dbuf_flags;
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	370 int err;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	371 zio_t *zio;
7468 23915842aa09 6687412 zfs stuck issuing small txg Mark Maybee <Mark.Maybee@Sun.COM> parents: 7385 diff changeset	372 hrtime_t start;
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	373
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	374 ASSERT(length <= DMU_MAX_ACCESS);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	375
10209 91f47f0e7728 6830541 zfs_get_data trips on a verify Mark J Musante <Mark.Musante@Sun.COM> parents: 9951 diff changeset	376 dbuf_flags = DB_RF_CANFAIL \| DB_RF_NEVERWAIT \| DB_RF_HAVESTRUCT;
9512 64cafcbcc337 6801810 Commit of aligned streaming rewrites to ZIL device causes unwanted disk reads Neil Perrin <Neil.Perrin@Sun.COM> parents: 9412 diff changeset	377 if (flags & DMU_READ_NO_PREFETCH \|\| length > zfetch_array_rd_sz)
64cafcbcc337 6801810 Commit of aligned streaming rewrites to ZIL device causes unwanted disk reads Neil Perrin <Neil.Perrin@Sun.COM> parents: 9412 diff changeset	378 dbuf_flags \|= DB_RF_NOPREFETCH;
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	379
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	380 rw_enter(&dn->dn_struct_rwlock, RW_READER);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	381 if (dn->dn_datablkshift) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	382 int blkshift = dn->dn_datablkshift;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	383 nblks = (P2ROUNDUP(offset+length, 1ULL<<blkshift) -
3912 f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3835 diff changeset	384 P2ALIGN(offset, 1ULL<<blkshift)) >> blkshift;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	385 } else {
3713 00e75dc8b749 6527325 want more assertions in space map code ahrens parents: 3689 diff changeset	386 if (offset + length > dn->dn_datablksz) {
00e75dc8b749 6527325 want more assertions in space map code ahrens parents: 3689 diff changeset	387 zfs_panic_recover("zfs: accessing past end of object "
00e75dc8b749 6527325 want more assertions in space map code ahrens parents: 3689 diff changeset	388 "%llx/%llx (size=%u access=%llu+%llu)",
00e75dc8b749 6527325 want more assertions in space map code ahrens parents: 3689 diff changeset	389 (longlong_t)dn->dn_objset->
00e75dc8b749 6527325 want more assertions in space map code ahrens parents: 3689 diff changeset	390 os_dsl_dataset->ds_object,
00e75dc8b749 6527325 want more assertions in space map code ahrens parents: 3689 diff changeset	391 (longlong_t)dn->dn_object, dn->dn_datablksz,
00e75dc8b749 6527325 want more assertions in space map code ahrens parents: 3689 diff changeset	392 (longlong_t)offset, (longlong_t)length);
10209 91f47f0e7728 6830541 zfs_get_data trips on a verify Mark J Musante <Mark.Musante@Sun.COM> parents: 9951 diff changeset	393 rw_exit(&dn->dn_struct_rwlock);
3713 00e75dc8b749 6527325 want more assertions in space map code ahrens parents: 3689 diff changeset	394 return (EIO);
00e75dc8b749 6527325 want more assertions in space map code ahrens parents: 3689 diff changeset	395 }
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	396 nblks = 1;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	397 }
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	398 dbp = kmem_zalloc(sizeof (dmu_buf_t ) nblks, KM_SLEEP);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	399
7468 23915842aa09 6687412 zfs stuck issuing small txg Mark Maybee <Mark.Maybee@Sun.COM> parents: 7385 diff changeset	400 if (dn->dn_objset->os_dsl_dataset)
23915842aa09 6687412 zfs stuck issuing small txg Mark Maybee <Mark.Maybee@Sun.COM> parents: 7385 diff changeset	401 dp = dn->dn_objset->os_dsl_dataset->ds_dir->dd_pool;
23915842aa09 6687412 zfs stuck issuing small txg Mark Maybee <Mark.Maybee@Sun.COM> parents: 7385 diff changeset	402 if (dp && dsl_pool_sync_context(dp))
23915842aa09 6687412 zfs stuck issuing small txg Mark Maybee <Mark.Maybee@Sun.COM> parents: 7385 diff changeset	403 start = gethrtime();
7754 b80e4842ad54 6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 7468 diff changeset	404 zio = zio_root(dn->dn_objset->os_spa, NULL, NULL, ZIO_FLAG_CANFAIL);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	405 blkid = dbuf_whichblock(dn, offset);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	406 for (i = 0; i < nblks; i++) {
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	407 dmu_buf_impl_t *db = dbuf_hold(dn, blkid+i, tag);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	408 if (db == NULL) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	409 rw_exit(&dn->dn_struct_rwlock);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	410 dmu_buf_rele_array(dbp, nblks, tag);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	411 zio_nowait(zio);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	412 return (EIO);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	413 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	414 /* initiate async i/o */
2391 2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	415 if (read) {
9512 64cafcbcc337 6801810 Commit of aligned streaming rewrites to ZIL device causes unwanted disk reads Neil Perrin <Neil.Perrin@Sun.COM> parents: 9412 diff changeset	416 (void) dbuf_read(db, zio, dbuf_flags);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	417 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	418 dbp[i] = &db->db;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	419 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	420 rw_exit(&dn->dn_struct_rwlock);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	421
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	422 /* wait for async i/o */
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	423 err = zio_wait(zio);
7468 23915842aa09 6687412 zfs stuck issuing small txg Mark Maybee <Mark.Maybee@Sun.COM> parents: 7385 diff changeset	424 /* track read overhead when we are in sync context */
23915842aa09 6687412 zfs stuck issuing small txg Mark Maybee <Mark.Maybee@Sun.COM> parents: 7385 diff changeset	425 if (dp && dsl_pool_sync_context(dp))
23915842aa09 6687412 zfs stuck issuing small txg Mark Maybee <Mark.Maybee@Sun.COM> parents: 7385 diff changeset	426 dp->dp_read_overhead += gethrtime() - start;
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	427 if (err) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	428 dmu_buf_rele_array(dbp, nblks, tag);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	429 return (err);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	430 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	431
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	432 /* wait for other io to complete */
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	433 if (read) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	434 for (i = 0; i < nblks; i++) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	435 dmu_buf_impl_t db = (dmu_buf_impl_t )dbp[i];
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	436 mutex_enter(&db->db_mtx);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	437 while (db->db_state == DB_READ \|\|
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	438 db->db_state == DB_FILL)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	439 cv_wait(&db->db_changed, &db->db_mtx);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	440 if (db->db_state == DB_UNCACHED)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	441 err = EIO;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	442 mutex_exit(&db->db_mtx);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	443 if (err) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	444 dmu_buf_rele_array(dbp, nblks, tag);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	445 return (err);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	446 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	447 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	448 }
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	449
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	450 *numbufsp = nblks;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	451 *dbpp = dbp;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	452 return (0);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	453 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	454
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2743 diff changeset	455 static int
2391 2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	456 dmu_buf_hold_array(objset_t *os, uint64_t object, uint64_t offset,
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	457 uint64_t length, int read, void tag, int numbufsp, dmu_buf_t ***dbpp)
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	458 {
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	459 dnode_t *dn;
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	460 int err;
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	461
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10242 diff changeset	462 err = dnode_hold(os, object, FTAG, &dn);
2391 2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	463 if (err)
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	464 return (err);
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	465
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	466 err = dmu_buf_hold_array_by_dnode(dn, offset, length, read, tag,
9512 64cafcbcc337 6801810 Commit of aligned streaming rewrites to ZIL device causes unwanted disk reads Neil Perrin <Neil.Perrin@Sun.COM> parents: 9412 diff changeset	467 numbufsp, dbpp, DMU_READ_PREFETCH);
2391 2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	468
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	469 dnode_rele(dn, FTAG);
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	470
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	471 return (err);
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	472 }
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	473
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	474 int
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	475 dmu_buf_hold_array_by_bonus(dmu_buf_t *db_fake, uint64_t offset,
2391 2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	476 uint64_t length, int read, void tag, int numbufsp, dmu_buf_t ***dbpp)
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	477 {
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	478 dmu_buf_impl_t db = (dmu_buf_impl_t )db_fake;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	479 dnode_t *dn;
2391 2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	480 int err;
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	481
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	482 DB_DNODE_ENTER(db);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	483 dn = DB_DNODE(db);
2391 2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	484 err = dmu_buf_hold_array_by_dnode(dn, offset, length, read, tag,
9512 64cafcbcc337 6801810 Commit of aligned streaming rewrites to ZIL device causes unwanted disk reads Neil Perrin <Neil.Perrin@Sun.COM> parents: 9412 diff changeset	485 numbufsp, dbpp, DMU_READ_PREFETCH);
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	486 DB_DNODE_EXIT(db);
2391 2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	487
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	488 return (err);
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	489 }
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	490
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	491 void
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	492 dmu_buf_rele_array(dmu_buf_t *dbp_fake, int numbufs, void tag)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	493 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	494 int i;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	495 dmu_buf_impl_t dbp = (dmu_buf_impl_t )dbp_fake;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	496
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	497 if (numbufs == 0)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	498 return;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	499
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	500 for (i = 0; i < numbufs; i++) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	501 if (dbp[i])
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	502 dbuf_rele(dbp[i], tag);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	503 }
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	504
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	505 kmem_free(dbp, sizeof (dmu_buf_t ) numbufs);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	506 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	507
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	508 void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	509 dmu_prefetch(objset_t *os, uint64_t object, uint64_t offset, uint64_t len)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	510 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	511 dnode_t *dn;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	512 uint64_t blkid;
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	513 int nblks, i, err;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	514
2986 c782fcf7a319 6485204 more tuneable tweakin ek110237 parents: 2926 diff changeset	515 if (zfs_prefetch_disable)
c782fcf7a319 6485204 more tuneable tweakin ek110237 parents: 2926 diff changeset	516 return;
c782fcf7a319 6485204 more tuneable tweakin ek110237 parents: 2926 diff changeset	517
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	518 if (len == 0) { /* they're interested in the bonus buffer */
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	519 dn = DMU_META_DNODE(os);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	520
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	521 if (object == 0 \|\| object >= DN_MAX_OBJECT)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	522 return;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	523
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	524 rw_enter(&dn->dn_struct_rwlock, RW_READER);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	525 blkid = dbuf_whichblock(dn, object * sizeof (dnode_phys_t));
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	526 dbuf_prefetch(dn, blkid);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	527 rw_exit(&dn->dn_struct_rwlock);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	528 return;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	529 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	530
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	531 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	532 * XXX - Note, if the dnode for the requested object is not
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	533 * already cached, we will do a synchronous read in the
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	534 * dnode_hold() call. The same is true for any indirects.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	535 */
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10242 diff changeset	536 err = dnode_hold(os, object, FTAG, &dn);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	537 if (err != 0)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	538 return;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	539
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	540 rw_enter(&dn->dn_struct_rwlock, RW_READER);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	541 if (dn->dn_datablkshift) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	542 int blkshift = dn->dn_datablkshift;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	543 nblks = (P2ROUNDUP(offset+len, 1<<blkshift) -
3912 f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3835 diff changeset	544 P2ALIGN(offset, 1<<blkshift)) >> blkshift;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	545 } else {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	546 nblks = (offset < dn->dn_datablksz);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	547 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	548
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	549 if (nblks != 0) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	550 blkid = dbuf_whichblock(dn, offset);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	551 for (i = 0; i < nblks; i++)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	552 dbuf_prefetch(dn, blkid+i);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	553 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	554
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	555 rw_exit(&dn->dn_struct_rwlock);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	556
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	557 dnode_rele(dn, FTAG);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	558 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	559
9950 78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	560 /*
78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	561 * Get the next "chunk" of file data to free. We traverse the file from
78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	562 * the end so that the file gets shorter over time (if we crashes in the
78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	563 * middle, this will leave us in a better state). We find allocated file
78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	564 * data by simply searching the allocated level 1 indirects.
78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	565 */
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	566 static int
9950 78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	567 get_next_chunk(dnode_t dn, uint64_t start, uint64_t limit)
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	568 {
9950 78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	569 uint64_t len = *start - limit;
78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	570 uint64_t blkcnt = 0;
78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	571 uint64_t maxblks = DMU_MAX_ACCESS / (1ULL << (dn->dn_indblkshift + 1));
78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	572 uint64_t iblkrange =
7385 f69ff8507427 6727817 ZFS assertion failure (zero length arc_buf_alloc) during NFS I/O Mark Maybee <Mark.Maybee@Sun.COM> parents: 7315 diff changeset	573 dn->dn_datablksz * EPB(dn->dn_indblkshift, SPA_BLKPTRSHIFT);
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	574
9950 78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	575 ASSERT(limit <= *start);
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	576
9950 78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	577 if (len <= iblkrange * maxblks) {
78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	578 *start = limit;
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	579 return (0);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	580 }
9950 78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	581 ASSERT(ISP2(iblkrange));
7385 f69ff8507427 6727817 ZFS assertion failure (zero length arc_buf_alloc) during NFS I/O Mark Maybee <Mark.Maybee@Sun.COM> parents: 7315 diff changeset	582
9950 78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	583 while (*start > limit && blkcnt < maxblks) {
7385 f69ff8507427 6727817 ZFS assertion failure (zero length arc_buf_alloc) during NFS I/O Mark Maybee <Mark.Maybee@Sun.COM> parents: 7315 diff changeset	584 int err;
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	585
9950 78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	586 /* find next allocated L1 indirect */
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	587 err = dnode_next_offset(dn,
9950 78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	588 DNODE_FIND_BACKWARDS, start, 2, 1, 0);
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	589
9950 78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	590 /* if there are no more, then we are done */
78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	591 if (err == ESRCH) {
78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	592 *start = limit;
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	593 return (0);
9950 78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	594 } else if (err) {
78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	595 return (err);
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	596 }
9950 78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	597 blkcnt += 1;
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	598
9950 78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	599 /* reset offset to end of "next" block back */
78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	600 start = P2ALIGN(start, iblkrange);
78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	601 if (*start <= limit)
78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	602 *start = limit;
78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	603 else
78fc41aa9bc5 6792701 Removing large holey file does not free space Mark Maybee <Mark.Maybee@Sun.COM> parents: 9512 diff changeset	604 *start -= 1;
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	605 }
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	606 return (0);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	607 }
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	608
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	609 static int
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	610 dmu_free_long_range_impl(objset_t os, dnode_t dn, uint64_t offset,
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	611 uint64_t length, boolean_t free_dnode)
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	612 {
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	613 dmu_tx_t *tx;
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	614 uint64_t object_size, start, end, len;
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	615 boolean_t trunc = (length == DMU_OBJECT_END);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	616 int align, err;
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	617
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	618 align = 1 << dn->dn_datablkshift;
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	619 ASSERT(align > 0);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	620 object_size = align == 1 ? dn->dn_datablksz :
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	621 (dn->dn_maxblkid + 1) << dn->dn_datablkshift;
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	622
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7872 diff changeset	623 end = offset + length;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7872 diff changeset	624 if (trunc \|\| end > object_size)
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	625 end = object_size;
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	626 if (end <= offset)
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	627 return (0);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	628 length = end - offset;
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	629
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	630 while (length) {
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	631 start = end;
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 7872 diff changeset	632 /* assert(offset <= start) */
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	633 err = get_next_chunk(dn, &start, offset);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	634 if (err)
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	635 return (err);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	636 len = trunc ? DMU_OBJECT_END : end - start;
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	637
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	638 tx = dmu_tx_create(os);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	639 dmu_tx_hold_free(tx, dn->dn_object, start, len);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	640 err = dmu_tx_assign(tx, TXG_WAIT);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	641 if (err) {
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	642 dmu_tx_abort(tx);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	643 return (err);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	644 }
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	645
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	646 dnode_free_range(dn, start, trunc ? -1 : len, tx);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	647
7385 f69ff8507427 6727817 ZFS assertion failure (zero length arc_buf_alloc) during NFS I/O Mark Maybee <Mark.Maybee@Sun.COM> parents: 7315 diff changeset	648 if (start == 0 && free_dnode) {
f69ff8507427 6727817 ZFS assertion failure (zero length arc_buf_alloc) during NFS I/O Mark Maybee <Mark.Maybee@Sun.COM> parents: 7315 diff changeset	649 ASSERT(trunc);
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	650 dnode_free(dn, tx);
7385 f69ff8507427 6727817 ZFS assertion failure (zero length arc_buf_alloc) during NFS I/O Mark Maybee <Mark.Maybee@Sun.COM> parents: 7315 diff changeset	651 }
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	652
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	653 length -= end - start;
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	654
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	655 dmu_tx_commit(tx);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	656 end = start;
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	657 }
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	658 return (0);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	659 }
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	660
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	661 int
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	662 dmu_free_long_range(objset_t *os, uint64_t object,
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	663 uint64_t offset, uint64_t length)
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	664 {
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	665 dnode_t *dn;
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	666 int err;
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	667
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10242 diff changeset	668 err = dnode_hold(os, object, FTAG, &dn);
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	669 if (err != 0)
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	670 return (err);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	671 err = dmu_free_long_range_impl(os, dn, offset, length, FALSE);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	672 dnode_rele(dn, FTAG);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	673 return (err);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	674 }
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	675
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	676 int
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	677 dmu_free_object(objset_t *os, uint64_t object)
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	678 {
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	679 dnode_t *dn;
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	680 dmu_tx_t *tx;
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	681 int err;
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	682
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10242 diff changeset	683 err = dnode_hold_impl(os, object, DNODE_MUST_BE_ALLOCATED,
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	684 FTAG, &dn);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	685 if (err != 0)
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	686 return (err);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	687 if (dn->dn_nlevels == 1) {
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	688 tx = dmu_tx_create(os);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	689 dmu_tx_hold_bonus(tx, object);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	690 dmu_tx_hold_free(tx, dn->dn_object, 0, DMU_OBJECT_END);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	691 err = dmu_tx_assign(tx, TXG_WAIT);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	692 if (err == 0) {
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	693 dnode_free_range(dn, 0, DMU_OBJECT_END, tx);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	694 dnode_free(dn, tx);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	695 dmu_tx_commit(tx);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	696 } else {
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	697 dmu_tx_abort(tx);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	698 }
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	699 } else {
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	700 err = dmu_free_long_range_impl(os, dn, 0, DMU_OBJECT_END, TRUE);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	701 }
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	702 dnode_rele(dn, FTAG);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	703 return (err);
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	704 }
20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	705
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	706 int
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	707 dmu_free_range(objset_t *os, uint64_t object, uint64_t offset,
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	708 uint64_t size, dmu_tx_t *tx)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	709 {
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	710 dnode_t *dn;
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10242 diff changeset	711 int err = dnode_hold(os, object, FTAG, &dn);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	712 if (err)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	713 return (err);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	714 ASSERT(offset < UINT64_MAX);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	715 ASSERT(size == -1ULL \|\| size <= UINT64_MAX - offset);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	716 dnode_free_range(dn, offset, size, tx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	717 dnode_rele(dn, FTAG);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	718 return (0);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	719 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	720
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	721 int
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	722 dmu_read(objset_t *os, uint64_t object, uint64_t offset, uint64_t size,
9512 64cafcbcc337 6801810 Commit of aligned streaming rewrites to ZIL device causes unwanted disk reads Neil Perrin <Neil.Perrin@Sun.COM> parents: 9412 diff changeset	723 void *buf, uint32_t flags)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	724 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	725 dnode_t *dn;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	726 dmu_buf_t **dbp;
10209 91f47f0e7728 6830541 zfs_get_data trips on a verify Mark J Musante <Mark.Musante@Sun.COM> parents: 9951 diff changeset	727 int numbufs, err;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	728
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10242 diff changeset	729 err = dnode_hold(os, object, FTAG, &dn);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	730 if (err)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	731 return (err);
3638 6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	732
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	733 /*
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	734 * Deal with odd block sizes, where there can't be data past the first
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	735 * block. If we ever do the tail block optimization, we will need to
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	736 * handle that here as well.
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	737 */
10209 91f47f0e7728 6830541 zfs_get_data trips on a verify Mark J Musante <Mark.Musante@Sun.COM> parents: 9951 diff changeset	738 if (dn->dn_maxblkid == 0) {
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	739 int newsz = offset > dn->dn_datablksz ? 0 :
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	740 MIN(size, dn->dn_datablksz - offset);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	741 bzero((char *)buf + newsz, size - newsz);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	742 size = newsz;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	743 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	744
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	745 while (size > 0) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	746 uint64_t mylen = MIN(size, DMU_MAX_ACCESS / 2);
10209 91f47f0e7728 6830541 zfs_get_data trips on a verify Mark J Musante <Mark.Musante@Sun.COM> parents: 9951 diff changeset	747 int i;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	748
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	749 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	750 * NB: we could do this block-at-a-time, but it's nice
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	751 * to be reading in parallel.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	752 */
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2743 diff changeset	753 err = dmu_buf_hold_array_by_dnode(dn, offset, mylen,
9512 64cafcbcc337 6801810 Commit of aligned streaming rewrites to ZIL device causes unwanted disk reads Neil Perrin <Neil.Perrin@Sun.COM> parents: 9412 diff changeset	754 TRUE, FTAG, &numbufs, &dbp, flags);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	755 if (err)
4944 96d96f8de974 6569719 panic dangling dbufs (dn=ffffffff28814d30, dbuf=ffffffff20756008) maybee parents: 4543 diff changeset	756 break;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	757
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	758 for (i = 0; i < numbufs; i++) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	759 int tocpy;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	760 int bufoff;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	761 dmu_buf_t *db = dbp[i];
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	762
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	763 ASSERT(size > 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	764
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	765 bufoff = offset - db->db_offset;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	766 tocpy = (int)MIN(db->db_size - bufoff, size);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	767
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	768 bcopy((char *)db->db_data + bufoff, buf, tocpy);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	769
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	770 offset += tocpy;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	771 size -= tocpy;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	772 buf = (char *)buf + tocpy;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	773 }
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	774 dmu_buf_rele_array(dbp, numbufs, FTAG);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	775 }
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2743 diff changeset	776 dnode_rele(dn, FTAG);
4944 96d96f8de974 6569719 panic dangling dbufs (dn=ffffffff28814d30, dbuf=ffffffff20756008) maybee parents: 4543 diff changeset	777 return (err);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	778 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	779
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	780 void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	781 dmu_write(objset_t *os, uint64_t object, uint64_t offset, uint64_t size,
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	782 const void buf, dmu_tx_t tx)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	783 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	784 dmu_buf_t **dbp;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	785 int numbufs, i;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	786
2391 2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	787 if (size == 0)
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	788 return;
2fa3fd1db808 6447377 ZFS prefetch is inconsistant maybee parents: 2237 diff changeset	789
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	790 VERIFY(0 == dmu_buf_hold_array(os, object, offset, size,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	791 FALSE, FTAG, &numbufs, &dbp));
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	792
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	793 for (i = 0; i < numbufs; i++) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	794 int tocpy;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	795 int bufoff;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	796 dmu_buf_t *db = dbp[i];
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	797
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	798 ASSERT(size > 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	799
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	800 bufoff = offset - db->db_offset;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	801 tocpy = (int)MIN(db->db_size - bufoff, size);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	802
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	803 ASSERT(i == 0 \|\| i == numbufs-1 \|\| tocpy == db->db_size);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	804
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	805 if (tocpy == db->db_size)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	806 dmu_buf_will_fill(db, tx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	807 else
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	808 dmu_buf_will_dirty(db, tx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	809
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	810 bcopy(buf, (char *)db->db_data + bufoff, tocpy);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	811
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	812 if (tocpy == db->db_size)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	813 dmu_buf_fill_done(db, tx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	814
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	815 offset += tocpy;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	816 size -= tocpy;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	817 buf = (char *)buf + tocpy;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	818 }
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	819 dmu_buf_rele_array(dbp, numbufs, FTAG);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	820 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	821
7872 40a9434212f6 6646775 Speed up the dumpifying process for zvols Tim Haley <Tim.Haley@Sun.COM> parents: 7754 diff changeset	822 void
40a9434212f6 6646775 Speed up the dumpifying process for zvols Tim Haley <Tim.Haley@Sun.COM> parents: 7754 diff changeset	823 dmu_prealloc(objset_t *os, uint64_t object, uint64_t offset, uint64_t size,
40a9434212f6 6646775 Speed up the dumpifying process for zvols Tim Haley <Tim.Haley@Sun.COM> parents: 7754 diff changeset	824 dmu_tx_t *tx)
40a9434212f6 6646775 Speed up the dumpifying process for zvols Tim Haley <Tim.Haley@Sun.COM> parents: 7754 diff changeset	825 {
40a9434212f6 6646775 Speed up the dumpifying process for zvols Tim Haley <Tim.Haley@Sun.COM> parents: 7754 diff changeset	826 dmu_buf_t **dbp;
40a9434212f6 6646775 Speed up the dumpifying process for zvols Tim Haley <Tim.Haley@Sun.COM> parents: 7754 diff changeset	827 int numbufs, i;
40a9434212f6 6646775 Speed up the dumpifying process for zvols Tim Haley <Tim.Haley@Sun.COM> parents: 7754 diff changeset	828
40a9434212f6 6646775 Speed up the dumpifying process for zvols Tim Haley <Tim.Haley@Sun.COM> parents: 7754 diff changeset	829 if (size == 0)
40a9434212f6 6646775 Speed up the dumpifying process for zvols Tim Haley <Tim.Haley@Sun.COM> parents: 7754 diff changeset	830 return;
40a9434212f6 6646775 Speed up the dumpifying process for zvols Tim Haley <Tim.Haley@Sun.COM> parents: 7754 diff changeset	831
40a9434212f6 6646775 Speed up the dumpifying process for zvols Tim Haley <Tim.Haley@Sun.COM> parents: 7754 diff changeset	832 VERIFY(0 == dmu_buf_hold_array(os, object, offset, size,
40a9434212f6 6646775 Speed up the dumpifying process for zvols Tim Haley <Tim.Haley@Sun.COM> parents: 7754 diff changeset	833 FALSE, FTAG, &numbufs, &dbp));
40a9434212f6 6646775 Speed up the dumpifying process for zvols Tim Haley <Tim.Haley@Sun.COM> parents: 7754 diff changeset	834
40a9434212f6 6646775 Speed up the dumpifying process for zvols Tim Haley <Tim.Haley@Sun.COM> parents: 7754 diff changeset	835 for (i = 0; i < numbufs; i++) {
40a9434212f6 6646775 Speed up the dumpifying process for zvols Tim Haley <Tim.Haley@Sun.COM> parents: 7754 diff changeset	836 dmu_buf_t *db = dbp[i];
40a9434212f6 6646775 Speed up the dumpifying process for zvols Tim Haley <Tim.Haley@Sun.COM> parents: 7754 diff changeset	837
40a9434212f6 6646775 Speed up the dumpifying process for zvols Tim Haley <Tim.Haley@Sun.COM> parents: 7754 diff changeset	838 dmu_buf_will_not_fill(db, tx);
40a9434212f6 6646775 Speed up the dumpifying process for zvols Tim Haley <Tim.Haley@Sun.COM> parents: 7754 diff changeset	839 }
40a9434212f6 6646775 Speed up the dumpifying process for zvols Tim Haley <Tim.Haley@Sun.COM> parents: 7754 diff changeset	840 dmu_buf_rele_array(dbp, numbufs, FTAG);
40a9434212f6 6646775 Speed up the dumpifying process for zvols Tim Haley <Tim.Haley@Sun.COM> parents: 7754 diff changeset	841 }
40a9434212f6 6646775 Speed up the dumpifying process for zvols Tim Haley <Tim.Haley@Sun.COM> parents: 7754 diff changeset	842
11539 10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	843 /*
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	844 * DMU support for xuio
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	845 */
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	846 kstat_t *xuio_ksp = NULL;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	847
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	848 int
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	849 dmu_xuio_init(xuio_t *xuio, int nblk)
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	850 {
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	851 dmu_xuio_t *priv;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	852 uio_t *uio = &xuio->xu_uio;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	853
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	854 uio->uio_iovcnt = nblk;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	855 uio->uio_iov = kmem_zalloc(nblk * sizeof (iovec_t), KM_SLEEP);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	856
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	857 priv = kmem_zalloc(sizeof (dmu_xuio_t), KM_SLEEP);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	858 priv->cnt = nblk;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	859 priv->bufs = kmem_zalloc(nblk * sizeof (arc_buf_t *), KM_SLEEP);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	860 priv->iovp = uio->uio_iov;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	861 XUIO_XUZC_PRIV(xuio) = priv;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	862
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	863 if (XUIO_XUZC_RW(xuio) == UIO_READ)
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	864 XUIOSTAT_INCR(xuiostat_onloan_rbuf, nblk);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	865 else
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	866 XUIOSTAT_INCR(xuiostat_onloan_wbuf, nblk);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	867
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	868 return (0);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	869 }
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	870
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	871 void
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	872 dmu_xuio_fini(xuio_t *xuio)
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	873 {
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	874 dmu_xuio_t *priv = XUIO_XUZC_PRIV(xuio);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	875 int nblk = priv->cnt;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	876
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	877 kmem_free(priv->iovp, nblk * sizeof (iovec_t));
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	878 kmem_free(priv->bufs, nblk * sizeof (arc_buf_t *));
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	879 kmem_free(priv, sizeof (dmu_xuio_t));
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	880
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	881 if (XUIO_XUZC_RW(xuio) == UIO_READ)
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	882 XUIOSTAT_INCR(xuiostat_onloan_rbuf, -nblk);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	883 else
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	884 XUIOSTAT_INCR(xuiostat_onloan_wbuf, -nblk);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	885 }
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	886
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	887 /*
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	888 * Initialize iov[priv->next] and priv->bufs[priv->next] with { off, n, abuf }
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	889 * and increase priv->next by 1.
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	890 */
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	891 int
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	892 dmu_xuio_add(xuio_t xuio, arc_buf_t abuf, offset_t off, size_t n)
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	893 {
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	894 struct iovec *iov;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	895 uio_t *uio = &xuio->xu_uio;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	896 dmu_xuio_t *priv = XUIO_XUZC_PRIV(xuio);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	897 int i = priv->next++;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	898
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	899 ASSERT(i < priv->cnt);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	900 ASSERT(off + n <= arc_buf_size(abuf));
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	901 iov = uio->uio_iov + i;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	902 iov->iov_base = (char *)abuf->b_data + off;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	903 iov->iov_len = n;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	904 priv->bufs[i] = abuf;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	905 return (0);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	906 }
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	907
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	908 int
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	909 dmu_xuio_cnt(xuio_t *xuio)
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	910 {
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	911 dmu_xuio_t *priv = XUIO_XUZC_PRIV(xuio);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	912 return (priv->cnt);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	913 }
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	914
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	915 arc_buf_t *
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	916 dmu_xuio_arcbuf(xuio_t *xuio, int i)
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	917 {
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	918 dmu_xuio_t *priv = XUIO_XUZC_PRIV(xuio);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	919
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	920 ASSERT(i < priv->cnt);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	921 return (priv->bufs[i]);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	922 }
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	923
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	924 void
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	925 dmu_xuio_clear(xuio_t *xuio, int i)
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	926 {
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	927 dmu_xuio_t *priv = XUIO_XUZC_PRIV(xuio);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	928
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	929 ASSERT(i < priv->cnt);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	930 priv->bufs[i] = NULL;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	931 }
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	932
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	933 static void
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	934 xuio_stat_init(void)
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	935 {
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	936 xuio_ksp = kstat_create("zfs", 0, "xuio_stats", "misc",
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	937 KSTAT_TYPE_NAMED, sizeof (xuio_stats) / sizeof (kstat_named_t),
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	938 KSTAT_FLAG_VIRTUAL);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	939 if (xuio_ksp != NULL) {
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	940 xuio_ksp->ks_data = &xuio_stats;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	941 kstat_install(xuio_ksp);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	942 }
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	943 }
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	944
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	945 static void
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	946 xuio_stat_fini(void)
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	947 {
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	948 if (xuio_ksp != NULL) {
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	949 kstat_delete(xuio_ksp);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	950 xuio_ksp = NULL;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	951 }
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	952 }
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	953
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	954 void
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	955 xuio_stat_wbuf_copied()
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	956 {
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	957 XUIOSTAT_BUMP(xuiostat_wbuf_copied);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	958 }
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	959
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	960 void
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	961 xuio_stat_wbuf_nocopy()
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	962 {
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	963 XUIOSTAT_BUMP(xuiostat_wbuf_nocopy);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	964 }
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	965
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	966 #ifdef _KERNEL
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	967 int
3638 6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	968 dmu_read_uio(objset_t os, uint64_t object, uio_t uio, uint64_t size)
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	969 {
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	970 dmu_buf_t **dbp;
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	971 int numbufs, i, err;
11539 10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	972 xuio_t *xuio = NULL;
3638 6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	973
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	974 /*
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	975 * NB: we could do this block-at-a-time, but it's nice
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	976 * to be reading in parallel.
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	977 */
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	978 err = dmu_buf_hold_array(os, object, uio->uio_loffset, size, TRUE, FTAG,
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	979 &numbufs, &dbp);
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	980 if (err)
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	981 return (err);
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	982
11539 10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	983 if (uio->uio_extflg == UIO_XUIO)
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	984 xuio = (xuio_t *)uio;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	985
3638 6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	986 for (i = 0; i < numbufs; i++) {
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	987 int tocpy;
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	988 int bufoff;
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	989 dmu_buf_t *db = dbp[i];
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	990
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	991 ASSERT(size > 0);
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	992
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	993 bufoff = uio->uio_loffset - db->db_offset;
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	994 tocpy = (int)MIN(db->db_size - bufoff, size);
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	995
11539 10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	996 if (xuio) {
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	997 dmu_buf_impl_t dbi = (dmu_buf_impl_t )db;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	998 arc_buf_t *dbuf_abuf = dbi->db_buf;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	999 arc_buf_t *abuf = dbuf_loan_arcbuf(dbi);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	1000 err = dmu_xuio_add(xuio, abuf, bufoff, tocpy);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	1001 if (!err) {
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	1002 uio->uio_resid -= tocpy;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	1003 uio->uio_loffset += tocpy;
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	1004 }
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	1005
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	1006 if (abuf == dbuf_abuf)
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	1007 XUIOSTAT_BUMP(xuiostat_rbuf_nocopy);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	1008 else
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	1009 XUIOSTAT_BUMP(xuiostat_rbuf_copied);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	1010 } else {
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	1011 err = uiomove((char *)db->db_data + bufoff, tocpy,
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	1012 UIO_READ, uio);
10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	1013 }
3638 6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	1014 if (err)
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	1015 break;
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	1016
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	1017 size -= tocpy;
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	1018 }
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	1019 dmu_buf_rele_array(dbp, numbufs, FTAG);
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	1020
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	1021 return (err);
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	1022 }
6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	1023
12123 bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1024 static int
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1025 dmu_write_uio_dnode(dnode_t dn, uio_t uio, uint64_t size, dmu_tx_t *tx)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1026 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1027 dmu_buf_t **dbp;
12123 bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1028 int numbufs;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1029 int err = 0;
12123 bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1030 int i;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1031
12123 bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1032 err = dmu_buf_hold_array_by_dnode(dn, uio->uio_loffset, size,
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1033 FALSE, FTAG, &numbufs, &dbp, DMU_READ_PREFETCH);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1034 if (err)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1035 return (err);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1036
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1037 for (i = 0; i < numbufs; i++) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1038 int tocpy;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1039 int bufoff;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1040 dmu_buf_t *db = dbp[i];
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1041
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1042 ASSERT(size > 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1043
3638 6b28ebc717aa 6496357 spec_fsync() is useless on devices that do write caching billm parents: 3547 diff changeset	1044 bufoff = uio->uio_loffset - db->db_offset;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1045 tocpy = (int)MIN(db->db_size - bufoff, size);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1046
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1047 ASSERT(i == 0 \|\| i == numbufs-1 \|\| tocpy == db->db_size);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1048
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1049 if (tocpy == db->db_size)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1050 dmu_buf_will_fill(db, tx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1051 else
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1052 dmu_buf_will_dirty(db, tx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1053
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1054 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1055 * XXX uiomove could block forever (eg. nfs-backed
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1056 * pages). There needs to be a uiolockdown() function
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1057 * to lock the pages in memory, so that uiomove won't
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1058 * block.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1059 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1060 err = uiomove((char *)db->db_data + bufoff, tocpy,
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1061 UIO_WRITE, uio);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1062
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1063 if (tocpy == db->db_size)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1064 dmu_buf_fill_done(db, tx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1065
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1066 if (err)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1067 break;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1068
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1069 size -= tocpy;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1070 }
12123 bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1071
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1072 dmu_buf_rele_array(dbp, numbufs, FTAG);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1073 return (err);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1074 }
2688 12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1075
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1076 int
12123 bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1077 dmu_write_uio_dbuf(dmu_buf_t zdb, uio_t uio, uint64_t size,
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1078 dmu_tx_t *tx)
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1079 {
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1080 dmu_buf_impl_t db = (dmu_buf_impl_t )zdb;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1081 dnode_t *dn;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1082 int err;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1083
12123 bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1084 if (size == 0)
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1085 return (0);
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1086
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1087 DB_DNODE_ENTER(db);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1088 dn = DB_DNODE(db);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1089 err = dmu_write_uio_dnode(dn, uio, size, tx);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1090 DB_DNODE_EXIT(db);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1091
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1092 return (err);
12123 bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1093 }
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1094
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1095 int
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1096 dmu_write_uio(objset_t os, uint64_t object, uio_t uio, uint64_t size,
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1097 dmu_tx_t *tx)
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1098 {
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1099 dnode_t *dn;
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1100 int err;
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1101
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1102 if (size == 0)
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1103 return (0);
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1104
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1105 err = dnode_hold(os, object, FTAG, &dn);
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1106 if (err)
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1107 return (err);
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1108
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1109 err = dmu_write_uio_dnode(dn, uio, size, tx);
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1110
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1111 dnode_rele(dn, FTAG);
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1112
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1113 return (err);
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1114 }
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1115
bb40732a982e 6572591 meta dnode lookup causes bucket lock contention in dbuf hash Tim Haley <Tim.Haley@Sun.COM> parents: 11935 diff changeset	1116 int
2688 12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1117 dmu_write_pages(objset_t *os, uint64_t object, uint64_t offset, uint64_t size,
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1118 page_t pp, dmu_tx_t tx)
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1119 {
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1120 dmu_buf_t **dbp;
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1121 int numbufs, i;
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1122 int err;
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1123
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1124 if (size == 0)
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1125 return (0);
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1126
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1127 err = dmu_buf_hold_array(os, object, offset, size,
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1128 FALSE, FTAG, &numbufs, &dbp);
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1129 if (err)
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1130 return (err);
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1131
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1132 for (i = 0; i < numbufs; i++) {
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1133 int tocpy, copied, thiscpy;
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1134 int bufoff;
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1135 dmu_buf_t *db = dbp[i];
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1136 caddr_t va;
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1137
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1138 ASSERT(size > 0);
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1139 ASSERT3U(db->db_size, >=, PAGESIZE);
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1140
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1141 bufoff = offset - db->db_offset;
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1142 tocpy = (int)MIN(db->db_size - bufoff, size);
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1143
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1144 ASSERT(i == 0 \|\| i == numbufs-1 \|\| tocpy == db->db_size);
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1145
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1146 if (tocpy == db->db_size)
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1147 dmu_buf_will_fill(db, tx);
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1148 else
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1149 dmu_buf_will_dirty(db, tx);
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1150
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1151 for (copied = 0; copied < tocpy; copied += PAGESIZE) {
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1152 ASSERT3U(pp->p_offset, ==, db->db_offset + bufoff);
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1153 thiscpy = MIN(PAGESIZE, tocpy - copied);
7315 cdba25672122 6735592 "zio" vmem arenas are confusing, not reported separately Jonathan W Adams <Jonathan.Adams@Sun.COM> parents: 7237 diff changeset	1154 va = zfs_map_page(pp, S_READ);
2688 12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1155 bcopy(va, (char *)db->db_data + bufoff, thiscpy);
7315 cdba25672122 6735592 "zio" vmem arenas are confusing, not reported separately Jonathan W Adams <Jonathan.Adams@Sun.COM> parents: 7237 diff changeset	1156 zfs_unmap_page(pp, va);
2688 12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1157 pp = pp->p_next;
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1158 bufoff += PAGESIZE;
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1159 }
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1160
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1161 if (tocpy == db->db_size)
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1162 dmu_buf_fill_done(db, tx);
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1163
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1164 offset += tocpy;
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1165 size -= tocpy;
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1166 }
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1167 dmu_buf_rele_array(dbp, numbufs, FTAG);
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1168 return (err);
12e2ad22b970 6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store maybee parents: 2676 diff changeset	1169 }
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1170 #endif
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1171
9412 4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1172 /*
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1173 * Allocate a loaned anonymous arc buffer.
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1174 */
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1175 arc_buf_t *
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1176 dmu_request_arcbuf(dmu_buf_t *handle, int size)
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1177 {
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1178 dmu_buf_impl_t db = (dmu_buf_impl_t )handle;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1179 spa_t *spa;
9412 4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1180
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1181 DB_GET_SPA(&spa, db);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1182 return (arc_loan_buf(spa, size));
9412 4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1183 }
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1184
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1185 /*
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1186 * Free a loaned arc buffer.
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1187 */
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1188 void
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1189 dmu_return_arcbuf(arc_buf_t *buf)
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1190 {
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1191 arc_return_buf(buf, FTAG);
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1192 VERIFY(arc_buf_remove_ref(buf, FTAG) == 1);
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1193 }
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1194
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1195 /*
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1196 * When possible directly assign passed loaned arc buffer to a dbuf.
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1197 * If this is not possible copy the contents of passed arc buf via
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1198 * dmu_write().
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1199 */
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1200 void
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1201 dmu_assign_arcbuf(dmu_buf_t handle, uint64_t offset, arc_buf_t buf,
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1202 dmu_tx_t *tx)
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1203 {
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1204 dmu_buf_impl_t dbuf = (dmu_buf_impl_t )handle;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1205 dnode_t *dn;
9412 4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1206 dmu_buf_impl_t *db;
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1207 uint32_t blksz = (uint32_t)arc_buf_size(buf);
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1208 uint64_t blkid;
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1209
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1210 DB_DNODE_ENTER(dbuf);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1211 dn = DB_DNODE(dbuf);
9412 4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1212 rw_enter(&dn->dn_struct_rwlock, RW_READER);
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1213 blkid = dbuf_whichblock(dn, offset);
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1214 VERIFY((db = dbuf_hold(dn, blkid, FTAG)) != NULL);
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1215 rw_exit(&dn->dn_struct_rwlock);
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1216 DB_DNODE_EXIT(dbuf);
9412 4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1217
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1218 if (offset == db->db.db_offset && blksz == db->db.db_size) {
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1219 dbuf_assign_arcbuf(db, buf, tx);
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1220 dbuf_rele(db, FTAG);
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1221 } else {
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1222 objset_t *os;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1223 uint64_t object;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1224
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1225 DB_DNODE_ENTER(dbuf);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1226 dn = DB_DNODE(dbuf);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1227 os = dn->dn_objset;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1228 object = dn->dn_object;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1229 DB_DNODE_EXIT(dbuf);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1230
9412 4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1231 dbuf_rele(db, FTAG);
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1232 dmu_write(os, object, offset, blksz, buf->b_data, tx);
9412 4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1233 dmu_return_arcbuf(buf);
11539 10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	1234 XUIOSTAT_BUMP(xuiostat_wbuf_copied);
9412 4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1235 }
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1236 }
4aefd8704ce0 6717022 ZFS DMU needs zero-copy support Aleksandr Guzovskiy <Aleksandr.Guzovskiy@Sun.COM> parents: 9396 diff changeset	1237
2237 45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1238 typedef struct {
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1239 dbuf_dirty_record_t *dsa_dr;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1240 dmu_sync_cb_t *dsa_done;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1241 zgd_t *dsa_zgd;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1242 dmu_tx_t *dsa_tx;
3547 e396e0a440b1 6512391 DMU should leverage ZIO dependencies to achieve greater parallelism maybee parents: 3444 diff changeset	1243 } dmu_sync_arg_t;
2237 45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1244
45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1245 /* ARGSUSED */
45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1246 static void
7754 b80e4842ad54 6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 7468 diff changeset	1247 dmu_sync_ready(zio_t zio, arc_buf_t buf, void *varg)
b80e4842ad54 6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 7468 diff changeset	1248 {
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1249 dmu_sync_arg_t *dsa = varg;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1250 dmu_buf_t *db = dsa->dsa_zgd->zgd_db;
7754 b80e4842ad54 6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 7468 diff changeset	1251 blkptr_t *bp = zio->io_bp;
10800 469478b180d9 6880764 fsync on zfs is broken if writes are greater than 32kb on a hard crash and no log attached Neil Perrin <Neil.Perrin@Sun.COM> parents: 10474 diff changeset	1252
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1253 if (zio->io_error == 0) {
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1254 if (BP_IS_HOLE(bp)) {
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1255 /*
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1256 * A block of zeros may compress to a hole, but the
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1257 * block size still needs to be known for replay.
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1258 */
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1259 BP_SET_LSIZE(bp, db->db_size);
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1260 } else {
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1261 ASSERT(BP_GET_LEVEL(bp) == 0);
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1262 bp->blk_fill = 1;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1263 }
7754 b80e4842ad54 6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 7468 diff changeset	1264 }
b80e4842ad54 6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 7468 diff changeset	1265 }
b80e4842ad54 6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 7468 diff changeset	1266
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1267 static void
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1268 dmu_sync_late_arrival_ready(zio_t *zio)
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1269 {
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1270 dmu_sync_ready(zio, NULL, zio->io_private);
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1271 }
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1272
7754 b80e4842ad54 6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 7468 diff changeset	1273 /* ARGSUSED */
b80e4842ad54 6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 7468 diff changeset	1274 static void
2237 45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1275 dmu_sync_done(zio_t zio, arc_buf_t buf, void *varg)
45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1276 {
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1277 dmu_sync_arg_t *dsa = varg;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1278 dbuf_dirty_record_t *dr = dsa->dsa_dr;
3547 e396e0a440b1 6512391 DMU should leverage ZIO dependencies to achieve greater parallelism maybee parents: 3444 diff changeset	1279 dmu_buf_impl_t *db = dr->dr_dbuf;
2237 45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1280
10810 b6b161a6ae4a 6892298 buf->b_hdr->b_state != arc_anon, file: ../../common/fs/zfs/arc.c, line: 2849 Neil Perrin <Neil.Perrin@Sun.COM> parents: 10800 diff changeset	1281 mutex_enter(&db->db_mtx);
b6b161a6ae4a 6892298 buf->b_hdr->b_state != arc_anon, file: ../../common/fs/zfs/arc.c, line: 2849 Neil Perrin <Neil.Perrin@Sun.COM> parents: 10800 diff changeset	1282 ASSERT(dr->dt.dl.dr_override_state == DR_IN_DMU_SYNC);
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1283 if (zio->io_error == 0) {
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1284 dr->dt.dl.dr_overridden_by = *zio->io_bp;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1285 dr->dt.dl.dr_override_state = DR_OVERRIDDEN;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1286 dr->dt.dl.dr_copies = zio->io_prop.zp_copies;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1287 if (BP_IS_HOLE(&dr->dt.dl.dr_overridden_by))
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1288 BP_ZERO(&dr->dt.dl.dr_overridden_by);
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1289 } else {
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1290 dr->dt.dl.dr_override_state = DR_NOT_OVERRIDDEN;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1291 }
2237 45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1292 cv_broadcast(&db->db_changed);
10810 b6b161a6ae4a 6892298 buf->b_hdr->b_state != arc_anon, file: ../../common/fs/zfs/arc.c, line: 2849 Neil Perrin <Neil.Perrin@Sun.COM> parents: 10800 diff changeset	1293 mutex_exit(&db->db_mtx);
b6b161a6ae4a 6892298 buf->b_hdr->b_state != arc_anon, file: ../../common/fs/zfs/arc.c, line: 2849 Neil Perrin <Neil.Perrin@Sun.COM> parents: 10800 diff changeset	1294
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1295 dsa->dsa_done(dsa->dsa_zgd, zio->io_error);
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1296
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1297 kmem_free(dsa, sizeof (*dsa));
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1298 }
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1299
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1300 static void
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1301 dmu_sync_late_arrival_done(zio_t *zio)
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1302 {
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1303 blkptr_t *bp = zio->io_bp;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1304 dmu_sync_arg_t *dsa = zio->io_private;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1305
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1306 if (zio->io_error == 0 && !BP_IS_HOLE(bp)) {
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1307 ASSERT(zio->io_bp->blk_birth == zio->io_txg);
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1308 ASSERT(zio->io_txg > spa_syncing_txg(zio->io_spa));
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1309 zio_free(zio->io_spa, zio->io_txg, zio->io_bp);
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1310 }
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1311
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1312 dmu_tx_commit(dsa->dsa_tx);
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1313
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1314 dsa->dsa_done(dsa->dsa_zgd, zio->io_error);
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1315
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1316 kmem_free(dsa, sizeof (*dsa));
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1317 }
3547 e396e0a440b1 6512391 DMU should leverage ZIO dependencies to achieve greater parallelism maybee parents: 3444 diff changeset	1318
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1319 static int
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1320 dmu_sync_late_arrival(zio_t pio, objset_t os, dmu_sync_cb_t done, zgd_t zgd,
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1321 zio_prop_t zp, zbookmark_t zb)
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1322 {
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1323 dmu_sync_arg_t *dsa;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1324 dmu_tx_t *tx;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1325
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1326 tx = dmu_tx_create(os);
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1327 dmu_tx_hold_space(tx, zgd->zgd_db->db_size);
11670 1d964fb5d948 6595532 ZIL is too talkative Neil Perrin <Neil.Perrin@Sun.COM> parents: 11539 diff changeset	1328 if (dmu_tx_assign(tx, TXG_WAIT) != 0) {
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1329 dmu_tx_abort(tx);
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1330 return (EIO); /* Make zl_get_data do txg_waited_synced() */
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1331 }
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1332
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1333 dsa = kmem_alloc(sizeof (dmu_sync_arg_t), KM_SLEEP);
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1334 dsa->dsa_dr = NULL;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1335 dsa->dsa_done = done;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1336 dsa->dsa_zgd = zgd;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1337 dsa->dsa_tx = tx;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1338
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1339 zio_nowait(zio_write(pio, os->os_spa, dmu_tx_get_txg(tx), zgd->zgd_bp,
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1340 zgd->zgd_db->db_data, zgd->zgd_db->db_size, zp,
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1341 dmu_sync_late_arrival_ready, dmu_sync_late_arrival_done, dsa,
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1342 ZIO_PRIORITY_SYNC_WRITE, ZIO_FLAG_CANFAIL, zb));
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1343
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1344 return (0);
2237 45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1345 }
45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1346
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1347 /*
2237 45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1348 * Intent log support: sync the block associated with db to disk.
45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1349 * N.B. and XXX: the caller is responsible for making sure that the
45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1350 * data isn't changing while dmu_sync() is writing it.
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1351 *
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1352 * Return values:
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1353 *
2237 45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1354 * EEXIST: this txg has already been synced, so there's nothing to to.
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1355 * The caller should not log the write.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1356 *
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1357 * ENOENT: the block was dbuf_free_range()'d, so there's nothing to do.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1358 * The caller should not log the write.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1359 *
2237 45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1360 * EALREADY: this block is already in the process of being synced.
45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1361 * The caller should track its progress (somehow).
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1362 *
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1363 * EIO: could not do the I/O.
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1364 * The caller should do a txg_wait_synced().
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1365 *
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1366 * 0: the I/O has been initiated.
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1367 * The caller should log this blkptr in the done callback.
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1368 * It is possible that the I/O will fail, in which case
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1369 * the error will be reported to the done callback and
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1370 * propagated to pio from zio_done().
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1371 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1372 int
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1373 dmu_sync(zio_t pio, uint64_t txg, dmu_sync_cb_t done, zgd_t *zgd)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1374 {
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1375 blkptr_t *bp = zgd->zgd_bp;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1376 dmu_buf_impl_t db = (dmu_buf_impl_t )zgd->zgd_db;
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10242 diff changeset	1377 objset_t *os = db->db_objset;
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1378 dsl_dataset_t *ds = os->os_dsl_dataset;
3547 e396e0a440b1 6512391 DMU should leverage ZIO dependencies to achieve greater parallelism maybee parents: 3444 diff changeset	1379 dbuf_dirty_record_t *dr;
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1380 dmu_sync_arg_t *dsa;
2237 45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1381 zbookmark_t zb;
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1382 zio_prop_t zp;
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1383 dnode_t *dn;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1384
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1385 ASSERT(pio != NULL);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1386 ASSERT(BP_IS_HOLE(bp));
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1387 ASSERT(txg != 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1388
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1389 SET_BOOKMARK(&zb, ds->ds_object,
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1390 db->db.db_object, db->db_level, db->db_blkid);
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1391
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1392 DB_DNODE_ENTER(db);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1393 dn = DB_DNODE(db);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1394 dmu_write_policy(os, dn, db->db_level, WP_DMU_SYNC, &zp);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1395 DB_DNODE_EXIT(db);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1396
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1397 /*
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1398 * If we're frozen (running ziltest), we always need to generate a bp.
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1399 */
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1400 if (txg > spa_freeze_txg(os->os_spa))
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1401 return (dmu_sync_late_arrival(pio, os, done, zgd, &zp, &zb));
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1402
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1403 /*
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1404 * Grabbing db_mtx now provides a barrier between dbuf_sync_leaf()
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1405 * and us. If we determine that this txg is not yet syncing,
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1406 * but it begins to sync a moment later, that's OK because the
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1407 * sync thread will block in dbuf_sync_leaf() until we drop db_mtx.
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1408 */
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1409 mutex_enter(&db->db_mtx);
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1410
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1411 if (txg <= spa_last_synced_txg(os->os_spa)) {
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1412 /*
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1413 * This txg has already synced. There's nothing to do.
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1414 */
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1415 mutex_exit(&db->db_mtx);
2237 45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1416 return (EEXIST);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1417 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1418
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1419 if (txg <= spa_syncing_txg(os->os_spa)) {
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1420 /*
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1421 * This txg is currently syncing, so we can't mess with
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1422 * the dirty record anymore; just write a new log block.
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1423 */
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1424 mutex_exit(&db->db_mtx);
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1425 return (dmu_sync_late_arrival(pio, os, done, zgd, &zp, &zb));
2237 45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1426 }
45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1427
3547 e396e0a440b1 6512391 DMU should leverage ZIO dependencies to achieve greater parallelism maybee parents: 3444 diff changeset	1428 dr = db->db_last_dirty;
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1429 while (dr && dr->dr_txg != txg)
3547 e396e0a440b1 6512391 DMU should leverage ZIO dependencies to achieve greater parallelism maybee parents: 3444 diff changeset	1430 dr = dr->dr_next;
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1431
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1432 if (dr == NULL) {
2237 45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1433 /*
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1434 * There's no dr for this dbuf, so it must have been freed.
2237 45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1435 * There's no need to log writes to freed blocks, so we're done.
45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1436 */
45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1437 mutex_exit(&db->db_mtx);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1438 return (ENOENT);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1439 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1440
3547 e396e0a440b1 6512391 DMU should leverage ZIO dependencies to achieve greater parallelism maybee parents: 3444 diff changeset	1441 ASSERT(dr->dr_txg == txg);
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1442 if (dr->dt.dl.dr_override_state == DR_IN_DMU_SYNC \|\|
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1443 dr->dt.dl.dr_override_state == DR_OVERRIDDEN) {
3547 e396e0a440b1 6512391 DMU should leverage ZIO dependencies to achieve greater parallelism maybee parents: 3444 diff changeset	1444 /*
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1445 * We have already issued a sync write for this buffer,
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1446 * or this buffer has already been synced. It could not
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1447 * have been dirtied since, or we would have cleared the state.
3547 e396e0a440b1 6512391 DMU should leverage ZIO dependencies to achieve greater parallelism maybee parents: 3444 diff changeset	1448 */
e396e0a440b1 6512391 DMU should leverage ZIO dependencies to achieve greater parallelism maybee parents: 3444 diff changeset	1449 mutex_exit(&db->db_mtx);
e396e0a440b1 6512391 DMU should leverage ZIO dependencies to achieve greater parallelism maybee parents: 3444 diff changeset	1450 return (EALREADY);
e396e0a440b1 6512391 DMU should leverage ZIO dependencies to achieve greater parallelism maybee parents: 3444 diff changeset	1451 }
e396e0a440b1 6512391 DMU should leverage ZIO dependencies to achieve greater parallelism maybee parents: 3444 diff changeset	1452
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1453 ASSERT(dr->dt.dl.dr_override_state == DR_NOT_OVERRIDDEN);
3547 e396e0a440b1 6512391 DMU should leverage ZIO dependencies to achieve greater parallelism maybee parents: 3444 diff changeset	1454 dr->dt.dl.dr_override_state = DR_IN_DMU_SYNC;
2237 45affe88ed99 6416482 filebench oltp workload hangs in zfs maybee parents: 2199 diff changeset	1455 mutex_exit(&db->db_mtx);
7754 b80e4842ad54 6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 7468 diff changeset	1456
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1457 dsa = kmem_alloc(sizeof (dmu_sync_arg_t), KM_SLEEP);
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1458 dsa->dsa_dr = dr;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1459 dsa->dsa_done = done;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1460 dsa->dsa_zgd = zgd;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1461 dsa->dsa_tx = NULL;
7754 b80e4842ad54 6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 7468 diff changeset	1462
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1463 zio_nowait(arc_write(pio, os->os_spa, txg,
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1464 bp, dr->dt.dl.dr_data, DBUF_IS_L2CACHEABLE(db), &zp,
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1465 dmu_sync_ready, dmu_sync_done, dsa,
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1466 ZIO_PRIORITY_SYNC_WRITE, ZIO_FLAG_CANFAIL, &zb));
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1467
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1468 return (0);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1469 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1470
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1471 int
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1472 dmu_object_set_blocksize(objset_t *os, uint64_t object, uint64_t size, int ibs,
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1473 dmu_tx_t *tx)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1474 {
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1475 dnode_t *dn;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1476 int err;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1477
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10242 diff changeset	1478 err = dnode_hold(os, object, FTAG, &dn);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1479 if (err)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1480 return (err);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1481 err = dnode_set_blksz(dn, size, ibs, tx);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1482 dnode_rele(dn, FTAG);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1483 return (err);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1484 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1485
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1486 void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1487 dmu_object_set_checksum(objset_t *os, uint64_t object, uint8_t checksum,
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1488 dmu_tx_t *tx)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1489 {
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1490 dnode_t *dn;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1491
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1492 /* XXX assumes dnode_hold will not get an i/o error */
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10242 diff changeset	1493 (void) dnode_hold(os, object, FTAG, &dn);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1494 ASSERT(checksum < ZIO_CHECKSUM_FUNCTIONS);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1495 dn->dn_checksum = checksum;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1496 dnode_setdirty(dn, tx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1497 dnode_rele(dn, FTAG);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1498 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1499
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1500 void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1501 dmu_object_set_compress(objset_t *os, uint64_t object, uint8_t compress,
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1502 dmu_tx_t *tx)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1503 {
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1504 dnode_t *dn;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1505
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1506 /* XXX assumes dnode_hold will not get an i/o error */
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10242 diff changeset	1507 (void) dnode_hold(os, object, FTAG, &dn);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1508 ASSERT(compress < ZIO_COMPRESS_FUNCTIONS);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1509 dn->dn_compress = compress;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1510 dnode_setdirty(dn, tx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1511 dnode_rele(dn, FTAG);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1512 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1513
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1514 int zfs_mdcomp_disable = 0;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1515
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1516 void
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1517 dmu_write_policy(objset_t os, dnode_t dn, int level, int wp, zio_prop_t *zp)
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1518 {
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1519 dmu_object_type_t type = dn ? dn->dn_type : DMU_OT_OBJSET;
13700 2889e2596bd6 2619 asynchronous destruction of ZFS file systems Christopher Siden <chris.siden@delphix.com> parents: 12684 diff changeset	1520 boolean_t ismd = (level > 0 \|\| DMU_OT_IS_METADATA(type) \|\|
12493 89ce40422cea 6952177 SA handling of on-disk corruption can be improved Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM> parents: 12470 diff changeset	1521 (wp & WP_SPILL));
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1522 enum zio_checksum checksum = os->os_checksum;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1523 enum zio_compress compress = os->os_compress;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1524 enum zio_checksum dedup_checksum = os->os_dedup_checksum;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1525 boolean_t dedup;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1526 boolean_t dedup_verify = os->os_dedup_verify;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1527 int copies = os->os_copies;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1528
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1529 /*
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1530 * Determine checksum setting.
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1531 */
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1532 if (ismd) {
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1533 /*
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1534 * Metadata always gets checksummed. If the data
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1535 * checksum is multi-bit correctable, and it's not a
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1536 * ZBT-style checksum, then it's suitable for metadata
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1537 * as well. Otherwise, the metadata checksum defaults
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1538 * to fletcher4.
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1539 */
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1540 if (zio_checksum_table[checksum].ci_correctable < 1 \|\|
11670 1d964fb5d948 6595532 ZIL is too talkative Neil Perrin <Neil.Perrin@Sun.COM> parents: 11539 diff changeset	1541 zio_checksum_table[checksum].ci_eck)
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1542 checksum = ZIO_CHECKSUM_FLETCHER_4;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1543 } else {
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1544 checksum = zio_checksum_select(dn->dn_checksum, checksum);
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1545 }
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1546
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1547 /*
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1548 * Determine compression setting.
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1549 */
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1550 if (ismd) {
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1551 /*
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1552 * XXX -- we should design a compression algorithm
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1553 * that specializes in arrays of bps.
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1554 */
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1555 compress = zfs_mdcomp_disable ? ZIO_COMPRESS_EMPTY :
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1556 ZIO_COMPRESS_LZJB;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1557 } else {
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1558 compress = zio_compress_select(dn->dn_compress, compress);
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1559 }
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1560
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1561 /*
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1562 * Determine dedup setting. If we are in dmu_sync(), we won't
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1563 * actually dedup now because that's all done in syncing context;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1564 * but we do want to use the dedup checkum. If the checksum is not
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1565 * strong enough to ensure unique signatures, force dedup_verify.
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1566 */
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1567 dedup = (!ismd && dedup_checksum != ZIO_CHECKSUM_OFF);
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1568 if (dedup) {
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1569 checksum = dedup_checksum;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1570 if (!zio_checksum_table[checksum].ci_dedup)
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1571 dedup_verify = 1;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1572 }
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1573
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1574 if (wp & WP_DMU_SYNC)
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1575 dedup = 0;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1576
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1577 if (wp & WP_NOFILL) {
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1578 ASSERT(!ismd && level == 0);
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1579 checksum = ZIO_CHECKSUM_OFF;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1580 compress = ZIO_COMPRESS_OFF;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1581 dedup = B_FALSE;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1582 }
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1583
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1584 zp->zp_checksum = checksum;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1585 zp->zp_compress = compress;
11935 538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	1586 zp->zp_type = (wp & WP_SPILL) ? dn->dn_bonustype : type;
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1587 zp->zp_level = level;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1588 zp->zp_copies = MIN(copies + ismd, spa_max_replication(os->os_spa));
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1589 zp->zp_dedup = dedup;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1590 zp->zp_dedup_verify = dedup && dedup_verify;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1591 }
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1592
1775 e51e26b432c0 6410698 ZFS metadata needs to be more highly replicated (ditto blocks) billm parents: 1731 diff changeset	1593 int
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1594 dmu_offset_next(objset_t os, uint64_t object, boolean_t hole, uint64_t off)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1595 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1596 dnode_t *dn;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1597 int i, err;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1598
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10242 diff changeset	1599 err = dnode_hold(os, object, FTAG, &dn);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1600 if (err)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1601 return (err);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1602 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1603 * Sync any current changes before
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1604 * we go trundling through the block pointers.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1605 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1606 for (i = 0; i < TXG_SIZE; i++) {
1596 2e2377ccbf85 6395371 ASSERT in dmu_tx_count_free: blkid + i < dn->dn_phys->dn_nblkptr ahrens parents: 1544 diff changeset	1607 if (list_link_active(&dn->dn_dirty_link[i]))
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1608 break;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1609 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1610 if (i != TXG_SIZE) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1611 dnode_rele(dn, FTAG);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1612 txg_wait_synced(dmu_objset_pool(os), 0);
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10242 diff changeset	1613 err = dnode_hold(os, object, FTAG, &dn);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1614 if (err)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1615 return (err);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1616 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1617
6992 20c04e18c58c 6573681 deleting a very large file can be slow maybee parents: 5450 diff changeset	1618 err = dnode_next_offset(dn, (hole ? DNODE_FIND_HOLE : 0), off, 1, 1, 0);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1619 dnode_rele(dn, FTAG);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1620
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1621 return (err);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1622 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1623
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1624 void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1625 dmu_object_info_from_dnode(dnode_t dn, dmu_object_info_t doi)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1626 {
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1627 dnode_phys_t *dnp;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1628
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1629 rw_enter(&dn->dn_struct_rwlock, RW_READER);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1630 mutex_enter(&dn->dn_mtx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1631
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1632 dnp = dn->dn_phys;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1633
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1634 doi->doi_data_block_size = dn->dn_datablksz;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1635 doi->doi_metadata_block_size = dn->dn_indblkshift ?
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1636 1ULL << dn->dn_indblkshift : 0;
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1637 doi->doi_type = dn->dn_type;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1638 doi->doi_bonus_type = dn->dn_bonustype;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1639 doi->doi_bonus_size = dn->dn_bonuslen;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1640 doi->doi_indirection = dn->dn_nlevels;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1641 doi->doi_checksum = dn->dn_checksum;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1642 doi->doi_compress = dn->dn_compress;
10922 e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1643 doi->doi_physical_blocks_512 = (DN_USED_BYTES(dnp) + 256) >> 9;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1644 doi->doi_max_offset = (dnp->dn_maxblkid + 1) * dn->dn_datablksz;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1645 doi->doi_fill_count = 0;
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1646 for (int i = 0; i < dnp->dn_nblkptr; i++)
e2081f502306 PSARC 2009/571 ZFS Deduplication Properties Jeff Bonwick <Jeff.Bonwick@Sun.COM> parents: 10810 diff changeset	1647 doi->doi_fill_count += dnp->dn_blkptr[i].blk_fill;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1648
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1649 mutex_exit(&dn->dn_mtx);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1650 rw_exit(&dn->dn_struct_rwlock);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1651 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1652
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1653 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1654 * Get information on a DMU object.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1655 * If doi is NULL, just indicates whether the object exists.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1656 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1657 int
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1658 dmu_object_info(objset_t os, uint64_t object, dmu_object_info_t doi)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1659 {
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1660 dnode_t *dn;
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10242 diff changeset	1661 int err = dnode_hold(os, object, FTAG, &dn);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1662
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1663 if (err)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 789 diff changeset	1664 return (err);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1665
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1666 if (doi != NULL)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1667 dmu_object_info_from_dnode(dn, doi);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1668
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1669 dnode_rele(dn, FTAG);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1670 return (0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1671 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1672
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1673 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1674 * As above, but faster; can be used when you have a held dbuf in hand.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1675 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1676 void
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1677 dmu_object_info_from_db(dmu_buf_t db_fake, dmu_object_info_t doi)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1678 {
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1679 dmu_buf_impl_t db = (dmu_buf_impl_t )db_fake;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1680
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1681 DB_DNODE_ENTER(db);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1682 dmu_object_info_from_dnode(DB_DNODE(db), doi);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1683 DB_DNODE_EXIT(db);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1684 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1685
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1686 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1687 * Faster still when you only care about the size.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1688 * This is specifically optimized for zfs_getattr().
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1689 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1690 void
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1691 dmu_object_size_from_db(dmu_buf_t db_fake, uint32_t blksize,
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1692 u_longlong_t *nblk512)
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1693 {
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1694 dmu_buf_impl_t db = (dmu_buf_impl_t )db_fake;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1695 dnode_t *dn;
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1696
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1697 DB_DNODE_ENTER(db);
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1698 dn = DB_DNODE(db);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1699
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1700 *blksize = dn->dn_datablksz;
2082 76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1775 diff changeset	1701 /* add 1 for dnode space */
76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1775 diff changeset	1702 *nblk512 = ((DN_USED_BYTES(dn->dn_phys) + SPA_MINBLOCKSIZE/2) >>
76b439ec3ac1 PSARC 2006/223 ZFS Hot Spares eschrock parents: 1775 diff changeset	1703 SPA_MINBLOCKSHIFT) + 1;
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1704 DB_DNODE_EXIT(db);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1705 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1706
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1707 void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1708 byteswap_uint64_array(void *vbuf, size_t size)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1709 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1710 uint64_t *buf = vbuf;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1711 size_t count = size >> 3;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1712 int i;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1713
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1714 ASSERT((size & 7) == 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1715
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1716 for (i = 0; i < count; i++)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1717 buf[i] = BSWAP_64(buf[i]);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1718 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1719
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1720 void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1721 byteswap_uint32_array(void *vbuf, size_t size)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1722 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1723 uint32_t *buf = vbuf;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1724 size_t count = size >> 2;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1725 int i;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1726
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1727 ASSERT((size & 3) == 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1728
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1729 for (i = 0; i < count; i++)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1730 buf[i] = BSWAP_32(buf[i]);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1731 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1732
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1733 void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1734 byteswap_uint16_array(void *vbuf, size_t size)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1735 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1736 uint16_t *buf = vbuf;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1737 size_t count = size >> 1;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1738 int i;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1739
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1740 ASSERT((size & 1) == 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1741
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1742 for (i = 0; i < count; i++)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1743 buf[i] = BSWAP_16(buf[i]);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1744 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1745
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1746 /* ARGSUSED */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1747 void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1748 byteswap_uint8_array(void *vbuf, size_t size)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1749 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1750 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1751
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1752 void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1753 dmu_init(void)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1754 {
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12285 diff changeset	1755 zfs_dbgmsg_init();
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1756 sa_cache_init();
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1757 xuio_stat_init();
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1758 dmu_objset_init();
397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1759 dnode_init();
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1760 dbuf_init();
10474 0e96dd3b905a 6859997 zfs caching performance problem Rich Morris <Richard.Morris@Sun.COM> parents: 10298 diff changeset	1761 zfetch_init();
13776 cd512c80fd75 3086 unnecessarily setting DS_FLAG_INCONSISTENT on async destroyed datasets Matthew Ahrens <mahrens@delphix.com> parents: 13700 diff changeset	1762 l2arc_init();
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1763 arc_init();
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1764 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1765
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1766 void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1767 dmu_fini(void)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1768 {
13776 cd512c80fd75 3086 unnecessarily setting DS_FLAG_INCONSISTENT on async destroyed datasets Matthew Ahrens <mahrens@delphix.com> parents: 13700 diff changeset	1769 arc_fini();
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1770 l2arc_fini();
10474 0e96dd3b905a 6859997 zfs caching performance problem Rich Morris <Richard.Morris@Sun.COM> parents: 10298 diff changeset	1771 zfetch_fini();
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1772 dbuf_fini();
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1773 dnode_fini();
12684 397e44ebb8a9 6710343 dnode cache should register a dnode_move() callback to limit fragmentation Tom Erickson <Tom.Erickson@Sun.COM> parents: 12493 diff changeset	1774 dmu_objset_fini();
11539 10d35fc3d7fd 6873106 Need a mechanism to share buffers between fs modules chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM> parents: 10922 diff changeset	1775 xuio_stat_fini();
11935 538c866aaac6 6716117 ZFS needs native system attribute infrastructure Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 11670 diff changeset	1776 sa_cache_fini();
12296 7cf402a7f374 6675946 'zpool status' should show the progress of resilvering for individual disk. Lin Ling <Lin.Ling@Sun.COM> parents: 12285 diff changeset	1777 zfs_dbgmsg_fini();
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1778 }

Mercurial > illumos > illumos-gate

annotate usr/src/uts/common/fs/zfs/dmu.c @ 13776:cd512c80fd75