author | Chris Kirby <Chris.Kirby@sun.com> |
Thu, 15 Oct 2009 07:09:05 -0600 | |
changeset 10799 | 395576ddfea9 |
parent 10588 | dc03f981ea18 |
child 10801 | e0bf032e8673 |
permissions | -rw-r--r-- |
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/* |
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* CDDL HEADER START |
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* |
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* The contents of this file are subject to the terms of the |
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* Common Development and Distribution License (the "License"). |
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* You may not use this file except in compliance with the License. |
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* |
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE |
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* or http://www.opensolaris.org/os/licensing. |
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* See the License for the specific language governing permissions |
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* and limitations under the License. |
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* |
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* When distributing Covered Code, include this CDDL HEADER in each |
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE. |
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* If applicable, add the following below this CDDL HEADER, with the |
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* fields enclosed by brackets "[]" replaced with your own identifying |
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* information: Portions Copyright [yyyy] [name of copyright owner] |
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* |
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* CDDL HEADER END |
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*/ |
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/* |
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* Copyright 2009 Sun Microsystems, Inc. All rights reserved. |
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* Use is subject to license terms. |
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*/ |
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||
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#include <sys/dmu_objset.h> |
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#include <sys/dsl_dataset.h> |
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28 |
#include <sys/dsl_dir.h> |
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#include <sys/dsl_prop.h> |
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#include <sys/dsl_synctask.h> |
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#include <sys/dmu_traverse.h> |
32 |
#include <sys/dmu_tx.h> |
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#include <sys/arc.h> |
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34 |
#include <sys/zio.h> |
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#include <sys/zap.h> |
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#include <sys/unique.h> |
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#include <sys/zfs_context.h> |
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#include <sys/zfs_ioctl.h> |
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#include <sys/spa.h> |
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#include <sys/zfs_znode.h> |
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#include <sys/sunddi.h> |
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#include <sys/zvol.h> |
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static char *dsl_reaper = "the grim reaper"; |
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static dsl_checkfunc_t dsl_dataset_destroy_begin_check; |
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static dsl_syncfunc_t dsl_dataset_destroy_begin_sync; |
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static dsl_syncfunc_t dsl_dataset_set_reservation_sync; |
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#define DS_REF_MAX (1ULL << 62) |
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#define DSL_DEADLIST_BLOCKSIZE SPA_MAXBLOCKSIZE |
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#define DSL_DATASET_IS_DESTROYED(ds) ((ds)->ds_owner == dsl_reaper) |
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/* |
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* Figure out how much of this delta should be propogated to the dsl_dir |
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* layer. If there's a refreservation, that space has already been |
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* partially accounted for in our ancestors. |
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*/ |
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static int64_t |
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parent_delta(dsl_dataset_t *ds, int64_t delta) |
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{ |
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uint64_t old_bytes, new_bytes; |
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if (ds->ds_reserved == 0) |
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return (delta); |
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old_bytes = MAX(ds->ds_phys->ds_unique_bytes, ds->ds_reserved); |
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new_bytes = MAX(ds->ds_phys->ds_unique_bytes + delta, ds->ds_reserved); |
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ASSERT3U(ABS((int64_t)(new_bytes - old_bytes)), <=, ABS(delta)); |
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return (new_bytes - old_bytes); |
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} |
789 | 76 |
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void |
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78 |
dsl_dataset_block_born(dsl_dataset_t *ds, blkptr_t *bp, dmu_tx_t *tx) |
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79 |
{ |
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int used = bp_get_dasize(tx->tx_pool->dp_spa, bp); |
789 | 81 |
int compressed = BP_GET_PSIZE(bp); |
82 |
int uncompressed = BP_GET_UCSIZE(bp); |
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int64_t delta; |
789 | 84 |
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dprintf_bp(bp, "born, ds=%p\n", ds); |
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86 |
||
87 |
ASSERT(dmu_tx_is_syncing(tx)); |
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/* It could have been compressed away to nothing */ |
|
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if (BP_IS_HOLE(bp)) |
|
90 |
return; |
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91 |
ASSERT(BP_GET_TYPE(bp) != DMU_OT_NONE); |
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92 |
ASSERT3U(BP_GET_TYPE(bp), <, DMU_OT_NUMTYPES); |
|
93 |
if (ds == NULL) { |
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94 |
/* |
|
95 |
* Account for the meta-objset space in its placeholder |
|
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* dsl_dir. |
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97 |
*/ |
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ASSERT3U(compressed, ==, uncompressed); /* it's all metadata */ |
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dsl_dir_diduse_space(tx->tx_pool->dp_mos_dir, DD_USED_HEAD, |
789 | 100 |
used, compressed, uncompressed, tx); |
101 |
dsl_dir_dirty(tx->tx_pool->dp_mos_dir, tx); |
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102 |
return; |
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103 |
} |
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104 |
dmu_buf_will_dirty(ds->ds_dbuf, tx); |
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mutex_enter(&ds->ds_dir->dd_lock); |
789 | 106 |
mutex_enter(&ds->ds_lock); |
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delta = parent_delta(ds, used); |
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ds->ds_phys->ds_used_bytes += used; |
109 |
ds->ds_phys->ds_compressed_bytes += compressed; |
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110 |
ds->ds_phys->ds_uncompressed_bytes += uncompressed; |
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ds->ds_phys->ds_unique_bytes += used; |
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mutex_exit(&ds->ds_lock); |
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dsl_dir_diduse_space(ds->ds_dir, DD_USED_HEAD, delta, |
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compressed, uncompressed, tx); |
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dsl_dir_transfer_space(ds->ds_dir, used - delta, |
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DD_USED_REFRSRV, DD_USED_HEAD, tx); |
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mutex_exit(&ds->ds_dir->dd_lock); |
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} |
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int |
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dsl_dataset_block_kill(dsl_dataset_t *ds, blkptr_t *bp, zio_t *pio, |
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dmu_tx_t *tx) |
789 | 123 |
{ |
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int used = bp_get_dasize(tx->tx_pool->dp_spa, bp); |
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int compressed = BP_GET_PSIZE(bp); |
126 |
int uncompressed = BP_GET_UCSIZE(bp); |
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ASSERT(pio != NULL); |
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ASSERT(dmu_tx_is_syncing(tx)); |
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/* No block pointer => nothing to free */ |
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if (BP_IS_HOLE(bp)) |
6992 | 132 |
return (0); |
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ASSERT(used > 0); |
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if (ds == NULL) { |
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int err; |
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/* |
138 |
* Account for the meta-objset space in its placeholder |
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* dataset. |
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*/ |
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err = dsl_free(pio, tx->tx_pool, |
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tx->tx_txg, bp, NULL, NULL, ARC_NOWAIT); |
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ASSERT(err == 0); |
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145 |
dsl_dir_diduse_space(tx->tx_pool->dp_mos_dir, DD_USED_HEAD, |
789 | 146 |
-used, -compressed, -uncompressed, tx); |
147 |
dsl_dir_dirty(tx->tx_pool->dp_mos_dir, tx); |
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6992 | 148 |
return (used); |
789 | 149 |
} |
150 |
ASSERT3P(tx->tx_pool, ==, ds->ds_dir->dd_pool); |
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151 |
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152 |
ASSERT(!dsl_dataset_is_snapshot(ds)); |
789 | 153 |
dmu_buf_will_dirty(ds->ds_dbuf, tx); |
154 |
||
155 |
if (bp->blk_birth > ds->ds_phys->ds_prev_snap_txg) { |
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int err; |
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int64_t delta; |
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158 |
|
789 | 159 |
dprintf_bp(bp, "freeing: %s", ""); |
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err = dsl_free(pio, tx->tx_pool, |
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tx->tx_txg, bp, NULL, NULL, ARC_NOWAIT); |
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162 |
ASSERT(err == 0); |
789 | 163 |
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164 |
mutex_enter(&ds->ds_dir->dd_lock); |
789 | 165 |
mutex_enter(&ds->ds_lock); |
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ASSERT(ds->ds_phys->ds_unique_bytes >= used || |
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167 |
!DS_UNIQUE_IS_ACCURATE(ds)); |
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168 |
delta = parent_delta(ds, -used); |
789 | 169 |
ds->ds_phys->ds_unique_bytes -= used; |
170 |
mutex_exit(&ds->ds_lock); |
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dsl_dir_diduse_space(ds->ds_dir, DD_USED_HEAD, |
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delta, -compressed, -uncompressed, tx); |
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173 |
dsl_dir_transfer_space(ds->ds_dir, -used - delta, |
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174 |
DD_USED_REFRSRV, DD_USED_HEAD, tx); |
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175 |
mutex_exit(&ds->ds_dir->dd_lock); |
789 | 176 |
} else { |
177 |
dprintf_bp(bp, "putting on dead list: %s", ""); |
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1544 | 178 |
VERIFY(0 == bplist_enqueue(&ds->ds_deadlist, bp, tx)); |
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ASSERT3U(ds->ds_prev->ds_object, ==, |
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180 |
ds->ds_phys->ds_prev_snap_obj); |
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181 |
ASSERT(ds->ds_prev->ds_phys->ds_num_children > 0); |
789 | 182 |
/* if (bp->blk_birth > prev prev snap txg) prev unique += bs */ |
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183 |
if (ds->ds_prev->ds_phys->ds_next_snap_obj == |
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184 |
ds->ds_object && bp->blk_birth > |
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185 |
ds->ds_prev->ds_phys->ds_prev_snap_txg) { |
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186 |
dmu_buf_will_dirty(ds->ds_prev->ds_dbuf, tx); |
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187 |
mutex_enter(&ds->ds_prev->ds_lock); |
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188 |
ds->ds_prev->ds_phys->ds_unique_bytes += used; |
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189 |
mutex_exit(&ds->ds_prev->ds_lock); |
789 | 190 |
} |
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191 |
if (bp->blk_birth > ds->ds_origin_txg) { |
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192 |
dsl_dir_transfer_space(ds->ds_dir, used, |
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193 |
DD_USED_HEAD, DD_USED_SNAP, tx); |
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194 |
} |
789 | 195 |
} |
196 |
mutex_enter(&ds->ds_lock); |
|
197 |
ASSERT3U(ds->ds_phys->ds_used_bytes, >=, used); |
|
198 |
ds->ds_phys->ds_used_bytes -= used; |
|
199 |
ASSERT3U(ds->ds_phys->ds_compressed_bytes, >=, compressed); |
|
200 |
ds->ds_phys->ds_compressed_bytes -= compressed; |
|
201 |
ASSERT3U(ds->ds_phys->ds_uncompressed_bytes, >=, uncompressed); |
|
202 |
ds->ds_phys->ds_uncompressed_bytes -= uncompressed; |
|
203 |
mutex_exit(&ds->ds_lock); |
|
6992 | 204 |
|
205 |
return (used); |
|
789 | 206 |
} |
207 |
||
1544 | 208 |
uint64_t |
209 |
dsl_dataset_prev_snap_txg(dsl_dataset_t *ds) |
|
789 | 210 |
{ |
2885 | 211 |
uint64_t trysnap = 0; |
212 |
||
789 | 213 |
if (ds == NULL) |
1544 | 214 |
return (0); |
789 | 215 |
/* |
216 |
* The snapshot creation could fail, but that would cause an |
|
217 |
* incorrect FALSE return, which would only result in an |
|
218 |
* overestimation of the amount of space that an operation would |
|
219 |
* consume, which is OK. |
|
220 |
* |
|
221 |
* There's also a small window where we could miss a pending |
|
222 |
* snapshot, because we could set the sync task in the quiescing |
|
223 |
* phase. So this should only be used as a guess. |
|
224 |
*/ |
|
2885 | 225 |
if (ds->ds_trysnap_txg > |
226 |
spa_last_synced_txg(ds->ds_dir->dd_pool->dp_spa)) |
|
227 |
trysnap = ds->ds_trysnap_txg; |
|
228 |
return (MAX(ds->ds_phys->ds_prev_snap_txg, trysnap)); |
|
1544 | 229 |
} |
230 |
||
9653
a70048a304d1
6664765 Unable to remove files when using fat-zap and quota exceeded on ZFS filesystem
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
9396
diff
changeset
|
231 |
boolean_t |
1544 | 232 |
dsl_dataset_block_freeable(dsl_dataset_t *ds, uint64_t blk_birth) |
233 |
{ |
|
234 |
return (blk_birth > dsl_dataset_prev_snap_txg(ds)); |
|
789 | 235 |
} |
236 |
||
237 |
/* ARGSUSED */ |
|
238 |
static void |
|
239 |
dsl_dataset_evict(dmu_buf_t *db, void *dsv) |
|
240 |
{ |
|
241 |
dsl_dataset_t *ds = dsv; |
|
242 |
||
6689
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diff
changeset
|
243 |
ASSERT(ds->ds_owner == NULL || DSL_DATASET_IS_DESTROYED(ds)); |
789 | 244 |
|
4787 | 245 |
unique_remove(ds->ds_fsid_guid); |
789 | 246 |
|
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
247 |
if (ds->ds_objset != NULL) |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
248 |
dmu_objset_evict(ds->ds_objset); |
789 | 249 |
|
250 |
if (ds->ds_prev) { |
|
6689
47572a2f5e73
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diff
changeset
|
251 |
dsl_dataset_drop_ref(ds->ds_prev, ds); |
789 | 252 |
ds->ds_prev = NULL; |
253 |
} |
|
254 |
||
255 |
bplist_close(&ds->ds_deadlist); |
|
6689
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parents:
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diff
changeset
|
256 |
if (ds->ds_dir) |
47572a2f5e73
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parents:
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diff
changeset
|
257 |
dsl_dir_close(ds->ds_dir, ds); |
789 | 258 |
|
4787 | 259 |
ASSERT(!list_link_active(&ds->ds_synced_link)); |
789 | 260 |
|
2856 | 261 |
mutex_destroy(&ds->ds_lock); |
10204
83c3a84aecef
6760420 zfs unmount -f causes recv to fail
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10002
diff
changeset
|
262 |
mutex_destroy(&ds->ds_recvlock); |
4787 | 263 |
mutex_destroy(&ds->ds_opening_lock); |
2856 | 264 |
mutex_destroy(&ds->ds_deadlist.bpl_lock); |
6689
47572a2f5e73
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parents:
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diff
changeset
|
265 |
rw_destroy(&ds->ds_rwlock); |
47572a2f5e73
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diff
changeset
|
266 |
cv_destroy(&ds->ds_exclusive_cv); |
2856 | 267 |
|
789 | 268 |
kmem_free(ds, sizeof (dsl_dataset_t)); |
269 |
} |
|
270 |
||
1544 | 271 |
static int |
789 | 272 |
dsl_dataset_get_snapname(dsl_dataset_t *ds) |
273 |
{ |
|
274 |
dsl_dataset_phys_t *headphys; |
|
275 |
int err; |
|
276 |
dmu_buf_t *headdbuf; |
|
277 |
dsl_pool_t *dp = ds->ds_dir->dd_pool; |
|
278 |
objset_t *mos = dp->dp_meta_objset; |
|
279 |
||
280 |
if (ds->ds_snapname[0]) |
|
1544 | 281 |
return (0); |
789 | 282 |
if (ds->ds_phys->ds_next_snap_obj == 0) |
1544 | 283 |
return (0); |
789 | 284 |
|
1544 | 285 |
err = dmu_bonus_hold(mos, ds->ds_dir->dd_phys->dd_head_dataset_obj, |
286 |
FTAG, &headdbuf); |
|
287 |
if (err) |
|
288 |
return (err); |
|
789 | 289 |
headphys = headdbuf->db_data; |
290 |
err = zap_value_search(dp->dp_meta_objset, |
|
4577 | 291 |
headphys->ds_snapnames_zapobj, ds->ds_object, 0, ds->ds_snapname); |
1544 | 292 |
dmu_buf_rele(headdbuf, FTAG); |
293 |
return (err); |
|
789 | 294 |
} |
295 |
||
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
296 |
static int |
6689
47572a2f5e73
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maybee
parents:
6643
diff
changeset
|
297 |
dsl_dataset_snap_lookup(dsl_dataset_t *ds, const char *name, uint64_t *value) |
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
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diff
changeset
|
298 |
{ |
6689
47572a2f5e73
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maybee
parents:
6643
diff
changeset
|
299 |
objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
300 |
uint64_t snapobj = ds->ds_phys->ds_snapnames_zapobj; |
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
301 |
matchtype_t mt; |
903545192033
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timh
parents:
6047
diff
changeset
|
302 |
int err; |
903545192033
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timh
parents:
6047
diff
changeset
|
303 |
|
6689
47572a2f5e73
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maybee
parents:
6643
diff
changeset
|
304 |
if (ds->ds_phys->ds_flags & DS_FLAG_CI_DATASET) |
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
305 |
mt = MT_FIRST; |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
306 |
else |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
307 |
mt = MT_EXACT; |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
308 |
|
6689
47572a2f5e73
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maybee
parents:
6643
diff
changeset
|
309 |
err = zap_lookup_norm(mos, snapobj, name, 8, 1, |
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
310 |
value, mt, NULL, 0, NULL); |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
311 |
if (err == ENOTSUP && mt == MT_FIRST) |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
312 |
err = zap_lookup(mos, snapobj, name, 8, 1, value); |
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
313 |
return (err); |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
314 |
} |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
315 |
|
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
316 |
static int |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
317 |
dsl_dataset_snap_remove(dsl_dataset_t *ds, char *name, dmu_tx_t *tx) |
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
318 |
{ |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
319 |
objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
320 |
uint64_t snapobj = ds->ds_phys->ds_snapnames_zapobj; |
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
321 |
matchtype_t mt; |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
322 |
int err; |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
323 |
|
10373
bcf97ee54990
6395956 snapshot dir needs real c/mtime
Chris Kirby <chris.kirby@sun.com>
parents:
10342
diff
changeset
|
324 |
dsl_dir_snap_cmtime_update(ds->ds_dir); |
bcf97ee54990
6395956 snapshot dir needs real c/mtime
Chris Kirby <chris.kirby@sun.com>
parents:
10342
diff
changeset
|
325 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
326 |
if (ds->ds_phys->ds_flags & DS_FLAG_CI_DATASET) |
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
327 |
mt = MT_FIRST; |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
328 |
else |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
329 |
mt = MT_EXACT; |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
330 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
331 |
err = zap_remove_norm(mos, snapobj, name, mt, tx); |
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
332 |
if (err == ENOTSUP && mt == MT_FIRST) |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
333 |
err = zap_remove(mos, snapobj, name, tx); |
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
334 |
return (err); |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
335 |
} |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
336 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
337 |
static int |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
338 |
dsl_dataset_get_ref(dsl_pool_t *dp, uint64_t dsobj, void *tag, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
339 |
dsl_dataset_t **dsp) |
789 | 340 |
{ |
341 |
objset_t *mos = dp->dp_meta_objset; |
|
342 |
dmu_buf_t *dbuf; |
|
343 |
dsl_dataset_t *ds; |
|
1544 | 344 |
int err; |
789 | 345 |
|
346 |
ASSERT(RW_LOCK_HELD(&dp->dp_config_rwlock) || |
|
347 |
dsl_pool_sync_context(dp)); |
|
348 |
||
1544 | 349 |
err = dmu_bonus_hold(mos, dsobj, tag, &dbuf); |
350 |
if (err) |
|
351 |
return (err); |
|
789 | 352 |
ds = dmu_buf_get_user(dbuf); |
353 |
if (ds == NULL) { |
|
354 |
dsl_dataset_t *winner; |
|
355 |
||
356 |
ds = kmem_zalloc(sizeof (dsl_dataset_t), KM_SLEEP); |
|
357 |
ds->ds_dbuf = dbuf; |
|
358 |
ds->ds_object = dsobj; |
|
359 |
ds->ds_phys = dbuf->db_data; |
|
360 |
||
2856 | 361 |
mutex_init(&ds->ds_lock, NULL, MUTEX_DEFAULT, NULL); |
10204
83c3a84aecef
6760420 zfs unmount -f causes recv to fail
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10002
diff
changeset
|
362 |
mutex_init(&ds->ds_recvlock, NULL, MUTEX_DEFAULT, NULL); |
4787 | 363 |
mutex_init(&ds->ds_opening_lock, NULL, MUTEX_DEFAULT, NULL); |
2856 | 364 |
mutex_init(&ds->ds_deadlist.bpl_lock, NULL, MUTEX_DEFAULT, |
365 |
NULL); |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
366 |
rw_init(&ds->ds_rwlock, 0, 0, 0); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
367 |
cv_init(&ds->ds_exclusive_cv, NULL, CV_DEFAULT, NULL); |
2856 | 368 |
|
1544 | 369 |
err = bplist_open(&ds->ds_deadlist, |
789 | 370 |
mos, ds->ds_phys->ds_deadlist_obj); |
1544 | 371 |
if (err == 0) { |
372 |
err = dsl_dir_open_obj(dp, |
|
373 |
ds->ds_phys->ds_dir_obj, NULL, ds, &ds->ds_dir); |
|
374 |
} |
|
375 |
if (err) { |
|
376 |
/* |
|
377 |
* we don't really need to close the blist if we |
|
378 |
* just opened it. |
|
379 |
*/ |
|
2856 | 380 |
mutex_destroy(&ds->ds_lock); |
10204
83c3a84aecef
6760420 zfs unmount -f causes recv to fail
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10002
diff
changeset
|
381 |
mutex_destroy(&ds->ds_recvlock); |
4787 | 382 |
mutex_destroy(&ds->ds_opening_lock); |
2856 | 383 |
mutex_destroy(&ds->ds_deadlist.bpl_lock); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
384 |
rw_destroy(&ds->ds_rwlock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
385 |
cv_destroy(&ds->ds_exclusive_cv); |
1544 | 386 |
kmem_free(ds, sizeof (dsl_dataset_t)); |
387 |
dmu_buf_rele(dbuf, tag); |
|
388 |
return (err); |
|
389 |
} |
|
789 | 390 |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
391 |
if (!dsl_dataset_is_snapshot(ds)) { |
789 | 392 |
ds->ds_snapname[0] = '\0'; |
393 |
if (ds->ds_phys->ds_prev_snap_obj) { |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
394 |
err = dsl_dataset_get_ref(dp, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
395 |
ds->ds_phys->ds_prev_snap_obj, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
396 |
ds, &ds->ds_prev); |
789 | 397 |
} |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
398 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
399 |
if (err == 0 && dsl_dir_is_clone(ds->ds_dir)) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
400 |
dsl_dataset_t *origin; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
401 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
402 |
err = dsl_dataset_hold_obj(dp, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
403 |
ds->ds_dir->dd_phys->dd_origin_obj, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
404 |
FTAG, &origin); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
405 |
if (err == 0) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
406 |
ds->ds_origin_txg = |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
407 |
origin->ds_phys->ds_creation_txg; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
408 |
dsl_dataset_rele(origin, FTAG); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
409 |
} |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
410 |
} |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
411 |
} else { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
412 |
if (zfs_flags & ZFS_DEBUG_SNAPNAMES) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
413 |
err = dsl_dataset_get_snapname(ds); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
414 |
if (err == 0 && ds->ds_phys->ds_userrefs_obj != 0) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
415 |
err = zap_count( |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
416 |
ds->ds_dir->dd_pool->dp_meta_objset, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
417 |
ds->ds_phys->ds_userrefs_obj, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
418 |
&ds->ds_userrefs); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
419 |
} |
789 | 420 |
} |
421 |
||
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
422 |
if (err == 0 && !dsl_dataset_is_snapshot(ds)) { |
5569
d3caac36d311
6634062 dsl_dataset_open_obj misuses RW_LOCK_HELD
ck153898
parents:
5518
diff
changeset
|
423 |
/* |
d3caac36d311
6634062 dsl_dataset_open_obj misuses RW_LOCK_HELD
ck153898
parents:
5518
diff
changeset
|
424 |
* In sync context, we're called with either no lock |
d3caac36d311
6634062 dsl_dataset_open_obj misuses RW_LOCK_HELD
ck153898
parents:
5518
diff
changeset
|
425 |
* or with the write lock. If we're not syncing, |
d3caac36d311
6634062 dsl_dataset_open_obj misuses RW_LOCK_HELD
ck153898
parents:
5518
diff
changeset
|
426 |
* we're always called with the read lock held. |
d3caac36d311
6634062 dsl_dataset_open_obj misuses RW_LOCK_HELD
ck153898
parents:
5518
diff
changeset
|
427 |
*/ |
5475
e140313199cc
6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d
ck153898
parents:
5446
diff
changeset
|
428 |
boolean_t need_lock = |
5569
d3caac36d311
6634062 dsl_dataset_open_obj misuses RW_LOCK_HELD
ck153898
parents:
5518
diff
changeset
|
429 |
!RW_WRITE_HELD(&dp->dp_config_rwlock) && |
d3caac36d311
6634062 dsl_dataset_open_obj misuses RW_LOCK_HELD
ck153898
parents:
5518
diff
changeset
|
430 |
dsl_pool_sync_context(dp); |
5475
e140313199cc
6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d
ck153898
parents:
5446
diff
changeset
|
431 |
|
e140313199cc
6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d
ck153898
parents:
5446
diff
changeset
|
432 |
if (need_lock) |
e140313199cc
6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d
ck153898
parents:
5446
diff
changeset
|
433 |
rw_enter(&dp->dp_config_rwlock, RW_READER); |
e140313199cc
6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d
ck153898
parents:
5446
diff
changeset
|
434 |
|
7265 | 435 |
err = dsl_prop_get_ds(ds, |
5475
e140313199cc
6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d
ck153898
parents:
5446
diff
changeset
|
436 |
"refreservation", sizeof (uint64_t), 1, |
e140313199cc
6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d
ck153898
parents:
5446
diff
changeset
|
437 |
&ds->ds_reserved, NULL); |
e140313199cc
6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d
ck153898
parents:
5446
diff
changeset
|
438 |
if (err == 0) { |
7265 | 439 |
err = dsl_prop_get_ds(ds, |
5475
e140313199cc
6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d
ck153898
parents:
5446
diff
changeset
|
440 |
"refquota", sizeof (uint64_t), 1, |
e140313199cc
6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d
ck153898
parents:
5446
diff
changeset
|
441 |
&ds->ds_quota, NULL); |
e140313199cc
6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d
ck153898
parents:
5446
diff
changeset
|
442 |
} |
e140313199cc
6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d
ck153898
parents:
5446
diff
changeset
|
443 |
|
e140313199cc
6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d
ck153898
parents:
5446
diff
changeset
|
444 |
if (need_lock) |
e140313199cc
6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d
ck153898
parents:
5446
diff
changeset
|
445 |
rw_exit(&dp->dp_config_rwlock); |
e140313199cc
6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d
ck153898
parents:
5446
diff
changeset
|
446 |
} else { |
e140313199cc
6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d
ck153898
parents:
5446
diff
changeset
|
447 |
ds->ds_reserved = ds->ds_quota = 0; |
e140313199cc
6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d
ck153898
parents:
5446
diff
changeset
|
448 |
} |
e140313199cc
6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d
ck153898
parents:
5446
diff
changeset
|
449 |
|
1544 | 450 |
if (err == 0) { |
451 |
winner = dmu_buf_set_user_ie(dbuf, ds, &ds->ds_phys, |
|
452 |
dsl_dataset_evict); |
|
453 |
} |
|
454 |
if (err || winner) { |
|
789 | 455 |
bplist_close(&ds->ds_deadlist); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
456 |
if (ds->ds_prev) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
457 |
dsl_dataset_drop_ref(ds->ds_prev, ds); |
789 | 458 |
dsl_dir_close(ds->ds_dir, ds); |
2856 | 459 |
mutex_destroy(&ds->ds_lock); |
10204
83c3a84aecef
6760420 zfs unmount -f causes recv to fail
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10002
diff
changeset
|
460 |
mutex_destroy(&ds->ds_recvlock); |
4787 | 461 |
mutex_destroy(&ds->ds_opening_lock); |
2856 | 462 |
mutex_destroy(&ds->ds_deadlist.bpl_lock); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
463 |
rw_destroy(&ds->ds_rwlock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
464 |
cv_destroy(&ds->ds_exclusive_cv); |
789 | 465 |
kmem_free(ds, sizeof (dsl_dataset_t)); |
1544 | 466 |
if (err) { |
467 |
dmu_buf_rele(dbuf, tag); |
|
468 |
return (err); |
|
469 |
} |
|
789 | 470 |
ds = winner; |
471 |
} else { |
|
4787 | 472 |
ds->ds_fsid_guid = |
789 | 473 |
unique_insert(ds->ds_phys->ds_fsid_guid); |
474 |
} |
|
475 |
} |
|
476 |
ASSERT3P(ds->ds_dbuf, ==, dbuf); |
|
477 |
ASSERT3P(ds->ds_phys, ==, dbuf->db_data); |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
478 |
ASSERT(ds->ds_phys->ds_prev_snap_obj != 0 || |
7061
524fec1acf1c
6723703 zpool upgrade -> assertion failed: ds->ds_phys->ds_prev_snap_obj != 0 || ...
ahrens
parents:
7046
diff
changeset
|
479 |
spa_version(dp->dp_spa) < SPA_VERSION_ORIGIN || |
7077
a63bdc0b8352
6724675 assertion failed in dsl_dataset_get_ref(): ds->ds_phys->ds_prev_snap_obj != 0 ...
ahrens
parents:
7061
diff
changeset
|
480 |
dp->dp_origin_snap == NULL || ds == dp->dp_origin_snap); |
789 | 481 |
mutex_enter(&ds->ds_lock); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
482 |
if (!dsl_pool_sync_context(dp) && DSL_DATASET_IS_DESTROYED(ds)) { |
789 | 483 |
mutex_exit(&ds->ds_lock); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
484 |
dmu_buf_rele(ds->ds_dbuf, tag); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
485 |
return (ENOENT); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
486 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
487 |
mutex_exit(&ds->ds_lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
488 |
*dsp = ds; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
489 |
return (0); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
490 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
491 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
492 |
static int |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
493 |
dsl_dataset_hold_ref(dsl_dataset_t *ds, void *tag) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
494 |
{ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
495 |
dsl_pool_t *dp = ds->ds_dir->dd_pool; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
496 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
497 |
/* |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
498 |
* In syncing context we don't want the rwlock lock: there |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
499 |
* may be an existing writer waiting for sync phase to |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
500 |
* finish. We don't need to worry about such writers, since |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
501 |
* sync phase is single-threaded, so the writer can't be |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
502 |
* doing anything while we are active. |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
503 |
*/ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
504 |
if (dsl_pool_sync_context(dp)) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
505 |
ASSERT(!DSL_DATASET_IS_DESTROYED(ds)); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
506 |
return (0); |
789 | 507 |
} |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
508 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
509 |
/* |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
510 |
* Normal users will hold the ds_rwlock as a READER until they |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
511 |
* are finished (i.e., call dsl_dataset_rele()). "Owners" will |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
512 |
* drop their READER lock after they set the ds_owner field. |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
513 |
* |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
514 |
* If the dataset is being destroyed, the destroy thread will |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
515 |
* obtain a WRITER lock for exclusive access after it's done its |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
516 |
* open-context work and then change the ds_owner to |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
517 |
* dsl_reaper once destruction is assured. So threads |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
518 |
* may block here temporarily, until the "destructability" of |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
519 |
* the dataset is determined. |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
520 |
*/ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
521 |
ASSERT(!RW_WRITE_HELD(&dp->dp_config_rwlock)); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
522 |
mutex_enter(&ds->ds_lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
523 |
while (!rw_tryenter(&ds->ds_rwlock, RW_READER)) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
524 |
rw_exit(&dp->dp_config_rwlock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
525 |
cv_wait(&ds->ds_exclusive_cv, &ds->ds_lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
526 |
if (DSL_DATASET_IS_DESTROYED(ds)) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
527 |
mutex_exit(&ds->ds_lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
528 |
dsl_dataset_drop_ref(ds, tag); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
529 |
rw_enter(&dp->dp_config_rwlock, RW_READER); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
530 |
return (ENOENT); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
531 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
532 |
rw_enter(&dp->dp_config_rwlock, RW_READER); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
533 |
} |
789 | 534 |
mutex_exit(&ds->ds_lock); |
1544 | 535 |
return (0); |
789 | 536 |
} |
537 |
||
538 |
int |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
539 |
dsl_dataset_hold_obj(dsl_pool_t *dp, uint64_t dsobj, void *tag, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
540 |
dsl_dataset_t **dsp) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
541 |
{ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
542 |
int err = dsl_dataset_get_ref(dp, dsobj, tag, dsp); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
543 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
544 |
if (err) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
545 |
return (err); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
546 |
return (dsl_dataset_hold_ref(*dsp, tag)); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
547 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
548 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
549 |
int |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
550 |
dsl_dataset_own_obj(dsl_pool_t *dp, uint64_t dsobj, boolean_t inconsistentok, |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
551 |
void *tag, dsl_dataset_t **dsp) |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
552 |
{ |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
553 |
int err = dsl_dataset_hold_obj(dp, dsobj, tag, dsp); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
554 |
if (err) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
555 |
return (err); |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
556 |
if (!dsl_dataset_tryown(*dsp, inconsistentok, tag)) { |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
557 |
dsl_dataset_rele(*dsp, tag); |
8779
f164e0e90508
6784924 panic while ludelete (zfs destroy)
Mark J Musante <Mark.Musante@Sun.COM>
parents:
8746
diff
changeset
|
558 |
*dsp = NULL; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
559 |
return (EBUSY); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
560 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
561 |
return (0); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
562 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
563 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
564 |
int |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
565 |
dsl_dataset_hold(const char *name, void *tag, dsl_dataset_t **dsp) |
789 | 566 |
{ |
567 |
dsl_dir_t *dd; |
|
568 |
dsl_pool_t *dp; |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
569 |
const char *snapname; |
789 | 570 |
uint64_t obj; |
571 |
int err = 0; |
|
572 |
||
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
573 |
err = dsl_dir_open_spa(NULL, name, FTAG, &dd, &snapname); |
1544 | 574 |
if (err) |
575 |
return (err); |
|
789 | 576 |
|
577 |
dp = dd->dd_pool; |
|
578 |
obj = dd->dd_phys->dd_head_dataset_obj; |
|
579 |
rw_enter(&dp->dp_config_rwlock, RW_READER); |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
580 |
if (obj) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
581 |
err = dsl_dataset_get_ref(dp, obj, tag, dsp); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
582 |
else |
789 | 583 |
err = ENOENT; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
584 |
if (err) |
789 | 585 |
goto out; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
586 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
587 |
err = dsl_dataset_hold_ref(*dsp, tag); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
588 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
589 |
/* we may be looking for a snapshot */ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
590 |
if (err == 0 && snapname != NULL) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
591 |
dsl_dataset_t *ds = NULL; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
592 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
593 |
if (*snapname++ != '@') { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
594 |
dsl_dataset_rele(*dsp, tag); |
789 | 595 |
err = ENOENT; |
596 |
goto out; |
|
597 |
} |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
598 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
599 |
dprintf("looking for snapshot '%s'\n", snapname); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
600 |
err = dsl_dataset_snap_lookup(*dsp, snapname, &obj); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
601 |
if (err == 0) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
602 |
err = dsl_dataset_get_ref(dp, obj, tag, &ds); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
603 |
dsl_dataset_rele(*dsp, tag); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
604 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
605 |
ASSERT3U((err == 0), ==, (ds != NULL)); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
606 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
607 |
if (ds) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
608 |
mutex_enter(&ds->ds_lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
609 |
if (ds->ds_snapname[0] == 0) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
610 |
(void) strlcpy(ds->ds_snapname, snapname, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
611 |
sizeof (ds->ds_snapname)); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
612 |
mutex_exit(&ds->ds_lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
613 |
err = dsl_dataset_hold_ref(ds, tag); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
614 |
*dsp = err ? NULL : ds; |
789 | 615 |
} |
616 |
} |
|
617 |
out: |
|
618 |
rw_exit(&dp->dp_config_rwlock); |
|
619 |
dsl_dir_close(dd, FTAG); |
|
620 |
return (err); |
|
621 |
} |
|
622 |
||
623 |
int |
|
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
624 |
dsl_dataset_own(const char *name, boolean_t inconsistentok, |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
625 |
void *tag, dsl_dataset_t **dsp) |
789 | 626 |
{ |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
627 |
int err = dsl_dataset_hold(name, tag, dsp); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
628 |
if (err) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
629 |
return (err); |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
630 |
if (!dsl_dataset_tryown(*dsp, inconsistentok, tag)) { |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
631 |
dsl_dataset_rele(*dsp, tag); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
632 |
return (EBUSY); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
633 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
634 |
return (0); |
789 | 635 |
} |
636 |
||
637 |
void |
|
638 |
dsl_dataset_name(dsl_dataset_t *ds, char *name) |
|
639 |
{ |
|
640 |
if (ds == NULL) { |
|
641 |
(void) strcpy(name, "mos"); |
|
642 |
} else { |
|
643 |
dsl_dir_name(ds->ds_dir, name); |
|
1544 | 644 |
VERIFY(0 == dsl_dataset_get_snapname(ds)); |
789 | 645 |
if (ds->ds_snapname[0]) { |
646 |
(void) strcat(name, "@"); |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
647 |
/* |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
648 |
* We use a "recursive" mutex so that we |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
649 |
* can call dprintf_ds() with ds_lock held. |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
650 |
*/ |
789 | 651 |
if (!MUTEX_HELD(&ds->ds_lock)) { |
652 |
mutex_enter(&ds->ds_lock); |
|
653 |
(void) strcat(name, ds->ds_snapname); |
|
654 |
mutex_exit(&ds->ds_lock); |
|
655 |
} else { |
|
656 |
(void) strcat(name, ds->ds_snapname); |
|
657 |
} |
|
658 |
} |
|
659 |
} |
|
660 |
} |
|
661 |
||
3978
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
662 |
static int |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
663 |
dsl_dataset_namelen(dsl_dataset_t *ds) |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
664 |
{ |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
665 |
int result; |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
666 |
|
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
667 |
if (ds == NULL) { |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
668 |
result = 3; /* "mos" */ |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
669 |
} else { |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
670 |
result = dsl_dir_namelen(ds->ds_dir); |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
671 |
VERIFY(0 == dsl_dataset_get_snapname(ds)); |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
672 |
if (ds->ds_snapname[0]) { |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
673 |
++result; /* adding one for the @-sign */ |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
674 |
if (!MUTEX_HELD(&ds->ds_lock)) { |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
675 |
mutex_enter(&ds->ds_lock); |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
676 |
result += strlen(ds->ds_snapname); |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
677 |
mutex_exit(&ds->ds_lock); |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
678 |
} else { |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
679 |
result += strlen(ds->ds_snapname); |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
680 |
} |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
681 |
} |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
682 |
} |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
683 |
|
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
684 |
return (result); |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
685 |
} |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
686 |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
687 |
void |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
688 |
dsl_dataset_drop_ref(dsl_dataset_t *ds, void *tag) |
789 | 689 |
{ |
1544 | 690 |
dmu_buf_rele(ds->ds_dbuf, tag); |
789 | 691 |
} |
692 |
||
693 |
void |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
694 |
dsl_dataset_rele(dsl_dataset_t *ds, void *tag) |
5367 | 695 |
{ |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
696 |
if (!dsl_pool_sync_context(ds->ds_dir->dd_pool)) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
697 |
rw_exit(&ds->ds_rwlock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
698 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
699 |
dsl_dataset_drop_ref(ds, tag); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
700 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
701 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
702 |
void |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
703 |
dsl_dataset_disown(dsl_dataset_t *ds, void *tag) |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
704 |
{ |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
705 |
ASSERT((ds->ds_owner == tag && ds->ds_dbuf) || |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
706 |
(DSL_DATASET_IS_DESTROYED(ds) && ds->ds_dbuf == NULL)); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
707 |
|
5367 | 708 |
mutex_enter(&ds->ds_lock); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
709 |
ds->ds_owner = NULL; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
710 |
if (RW_WRITE_HELD(&ds->ds_rwlock)) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
711 |
rw_exit(&ds->ds_rwlock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
712 |
cv_broadcast(&ds->ds_exclusive_cv); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
713 |
} |
5367 | 714 |
mutex_exit(&ds->ds_lock); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
715 |
if (ds->ds_dbuf) |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
716 |
dsl_dataset_drop_ref(ds, tag); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
717 |
else |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
718 |
dsl_dataset_evict(ds->ds_dbuf, ds); |
5367 | 719 |
} |
720 |
||
721 |
boolean_t |
|
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
722 |
dsl_dataset_tryown(dsl_dataset_t *ds, boolean_t inconsistentok, void *tag) |
5367 | 723 |
{ |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
724 |
boolean_t gotit = FALSE; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
725 |
|
5367 | 726 |
mutex_enter(&ds->ds_lock); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
727 |
if (ds->ds_owner == NULL && |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
728 |
(!DS_IS_INCONSISTENT(ds) || inconsistentok)) { |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
729 |
ds->ds_owner = tag; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
730 |
if (!dsl_pool_sync_context(ds->ds_dir->dd_pool)) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
731 |
rw_exit(&ds->ds_rwlock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
732 |
gotit = TRUE; |
5367 | 733 |
} |
734 |
mutex_exit(&ds->ds_lock); |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
735 |
return (gotit); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
736 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
737 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
738 |
void |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
739 |
dsl_dataset_make_exclusive(dsl_dataset_t *ds, void *owner) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
740 |
{ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
741 |
ASSERT3P(owner, ==, ds->ds_owner); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
742 |
if (!RW_WRITE_HELD(&ds->ds_rwlock)) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
743 |
rw_enter(&ds->ds_rwlock, RW_WRITER); |
5367 | 744 |
} |
745 |
||
2199 | 746 |
uint64_t |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
747 |
dsl_dataset_create_sync_dd(dsl_dir_t *dd, dsl_dataset_t *origin, |
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
748 |
uint64_t flags, dmu_tx_t *tx) |
789 | 749 |
{ |
5367 | 750 |
dsl_pool_t *dp = dd->dd_pool; |
789 | 751 |
dmu_buf_t *dbuf; |
752 |
dsl_dataset_phys_t *dsphys; |
|
5367 | 753 |
uint64_t dsobj; |
789 | 754 |
objset_t *mos = dp->dp_meta_objset; |
755 |
||
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
756 |
if (origin == NULL) |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
757 |
origin = dp->dp_origin_snap; |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
758 |
|
5367 | 759 |
ASSERT(origin == NULL || origin->ds_dir->dd_pool == dp); |
760 |
ASSERT(origin == NULL || origin->ds_phys->ds_num_children > 0); |
|
789 | 761 |
ASSERT(dmu_tx_is_syncing(tx)); |
5367 | 762 |
ASSERT(dd->dd_phys->dd_head_dataset_obj == 0); |
789 | 763 |
|
928
36d72fe4da29
6349314 dmu_object_type names incorrect for DSL Directories and DSL Datasets
tabriz
parents:
885
diff
changeset
|
764 |
dsobj = dmu_object_alloc(mos, DMU_OT_DSL_DATASET, 0, |
36d72fe4da29
6349314 dmu_object_type names incorrect for DSL Directories and DSL Datasets
tabriz
parents:
885
diff
changeset
|
765 |
DMU_OT_DSL_DATASET, sizeof (dsl_dataset_phys_t), tx); |
1544 | 766 |
VERIFY(0 == dmu_bonus_hold(mos, dsobj, FTAG, &dbuf)); |
789 | 767 |
dmu_buf_will_dirty(dbuf, tx); |
768 |
dsphys = dbuf->db_data; |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
769 |
bzero(dsphys, sizeof (dsl_dataset_phys_t)); |
789 | 770 |
dsphys->ds_dir_obj = dd->dd_object; |
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
771 |
dsphys->ds_flags = flags; |
789 | 772 |
dsphys->ds_fsid_guid = unique_create(); |
773 |
(void) random_get_pseudo_bytes((void*)&dsphys->ds_guid, |
|
774 |
sizeof (dsphys->ds_guid)); |
|
775 |
dsphys->ds_snapnames_zapobj = |
|
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
776 |
zap_create_norm(mos, U8_TEXTPREP_TOUPPER, DMU_OT_DSL_DS_SNAP_MAP, |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
777 |
DMU_OT_NONE, 0, tx); |
789 | 778 |
dsphys->ds_creation_time = gethrestime_sec(); |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
779 |
dsphys->ds_creation_txg = tx->tx_txg == TXG_INITIAL ? 1 : tx->tx_txg; |
789 | 780 |
dsphys->ds_deadlist_obj = |
781 |
bplist_create(mos, DSL_DEADLIST_BLOCKSIZE, tx); |
|
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
782 |
|
5367 | 783 |
if (origin) { |
784 |
dsphys->ds_prev_snap_obj = origin->ds_object; |
|
789 | 785 |
dsphys->ds_prev_snap_txg = |
5367 | 786 |
origin->ds_phys->ds_creation_txg; |
789 | 787 |
dsphys->ds_used_bytes = |
5367 | 788 |
origin->ds_phys->ds_used_bytes; |
789 | 789 |
dsphys->ds_compressed_bytes = |
5367 | 790 |
origin->ds_phys->ds_compressed_bytes; |
789 | 791 |
dsphys->ds_uncompressed_bytes = |
5367 | 792 |
origin->ds_phys->ds_uncompressed_bytes; |
793 |
dsphys->ds_bp = origin->ds_phys->ds_bp; |
|
6502
66aef5f20377
6694731 drc->drc_real_ds->ds_phys->ds_flags & (1ULL<<0), file: ../../common/fs/zfs/dmu_send.c, line: 1069
timh
parents:
6492
diff
changeset
|
794 |
dsphys->ds_flags |= origin->ds_phys->ds_flags; |
789 | 795 |
|
5367 | 796 |
dmu_buf_will_dirty(origin->ds_dbuf, tx); |
797 |
origin->ds_phys->ds_num_children++; |
|
789 | 798 |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
799 |
if (spa_version(dp->dp_spa) >= SPA_VERSION_NEXT_CLONES) { |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
800 |
if (origin->ds_phys->ds_next_clones_obj == 0) { |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
801 |
origin->ds_phys->ds_next_clones_obj = |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
802 |
zap_create(mos, |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
803 |
DMU_OT_NEXT_CLONES, DMU_OT_NONE, 0, tx); |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
804 |
} |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
805 |
VERIFY(0 == zap_add_int(mos, |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
806 |
origin->ds_phys->ds_next_clones_obj, |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
807 |
dsobj, tx)); |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
808 |
} |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
809 |
|
789 | 810 |
dmu_buf_will_dirty(dd->dd_dbuf, tx); |
5367 | 811 |
dd->dd_phys->dd_origin_obj = origin->ds_object; |
789 | 812 |
} |
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
813 |
|
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
814 |
if (spa_version(dp->dp_spa) >= SPA_VERSION_UNIQUE_ACCURATE) |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
815 |
dsphys->ds_flags |= DS_FLAG_UNIQUE_ACCURATE; |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
816 |
|
1544 | 817 |
dmu_buf_rele(dbuf, FTAG); |
789 | 818 |
|
819 |
dmu_buf_will_dirty(dd->dd_dbuf, tx); |
|
820 |
dd->dd_phys->dd_head_dataset_obj = dsobj; |
|
5367 | 821 |
|
822 |
return (dsobj); |
|
823 |
} |
|
824 |
||
825 |
uint64_t |
|
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
826 |
dsl_dataset_create_sync(dsl_dir_t *pdd, const char *lastname, |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
827 |
dsl_dataset_t *origin, uint64_t flags, cred_t *cr, dmu_tx_t *tx) |
5367 | 828 |
{ |
829 |
dsl_pool_t *dp = pdd->dd_pool; |
|
830 |
uint64_t dsobj, ddobj; |
|
831 |
dsl_dir_t *dd; |
|
832 |
||
833 |
ASSERT(lastname[0] != '@'); |
|
834 |
||
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
835 |
ddobj = dsl_dir_create_sync(dp, pdd, lastname, tx); |
5367 | 836 |
VERIFY(0 == dsl_dir_open_obj(dp, ddobj, lastname, FTAG, &dd)); |
837 |
||
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
838 |
dsobj = dsl_dataset_create_sync_dd(dd, origin, flags, tx); |
5367 | 839 |
|
840 |
dsl_deleg_set_create_perms(dd, tx, cr); |
|
841 |
||
789 | 842 |
dsl_dir_close(dd, FTAG); |
843 |
||
2199 | 844 |
return (dsobj); |
845 |
} |
|
846 |
||
847 |
struct destroyarg { |
|
848 |
dsl_sync_task_group_t *dstg; |
|
849 |
char *snapname; |
|
850 |
char *failed; |
|
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
851 |
boolean_t defer; |
2199 | 852 |
}; |
853 |
||
854 |
static int |
|
855 |
dsl_snapshot_destroy_one(char *name, void *arg) |
|
856 |
{ |
|
857 |
struct destroyarg *da = arg; |
|
858 |
dsl_dataset_t *ds; |
|
859 |
int err; |
|
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
860 |
char *dsname; |
10272
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
861 |
|
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
862 |
dsname = kmem_asprintf("%s@%s", name, da->snapname); |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
863 |
err = dsl_dataset_own(dsname, B_TRUE, da->dstg, &ds); |
10272
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
864 |
strfree(dsname); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
865 |
if (err == 0) { |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
866 |
struct dsl_ds_destroyarg *dsda; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
867 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
868 |
dsl_dataset_make_exclusive(ds, da->dstg); |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
869 |
if (ds->ds_objset != NULL) { |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
870 |
dmu_objset_evict(ds->ds_objset); |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
871 |
ds->ds_objset = NULL; |
7237
f47d41541b14
PSARC 2008/393 zfs primarycache and secondarycache properties
ek110237
parents:
7077
diff
changeset
|
872 |
} |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
873 |
dsda = kmem_zalloc(sizeof (struct dsl_ds_destroyarg), KM_SLEEP); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
874 |
dsda->ds = ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
875 |
dsda->defer = da->defer; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
876 |
dsl_sync_task_create(da->dstg, dsl_dataset_destroy_check, |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
877 |
dsl_dataset_destroy_sync, dsda, da->dstg, 0); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
878 |
} else if (err == ENOENT) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
879 |
err = 0; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
880 |
} else { |
2199 | 881 |
(void) strcpy(da->failed, name); |
882 |
} |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
883 |
return (err); |
789 | 884 |
} |
885 |
||
2199 | 886 |
/* |
887 |
* Destroy 'snapname' in all descendants of 'fsname'. |
|
888 |
*/ |
|
889 |
#pragma weak dmu_snapshots_destroy = dsl_snapshots_destroy |
|
890 |
int |
|
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
891 |
dsl_snapshots_destroy(char *fsname, char *snapname, boolean_t defer) |
2199 | 892 |
{ |
893 |
int err; |
|
894 |
struct destroyarg da; |
|
895 |
dsl_sync_task_t *dst; |
|
896 |
spa_t *spa; |
|
897 |
||
4603
c7840c367d00
6494569 zfs recv -d pool/<doesn't exist> core dumps for top-level filesystem backups
ahrens
parents:
4577
diff
changeset
|
898 |
err = spa_open(fsname, &spa, FTAG); |
2199 | 899 |
if (err) |
900 |
return (err); |
|
901 |
da.dstg = dsl_sync_task_group_create(spa_get_dsl(spa)); |
|
902 |
da.snapname = snapname; |
|
903 |
da.failed = fsname; |
|
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
904 |
da.defer = defer; |
2199 | 905 |
|
906 |
err = dmu_objset_find(fsname, |
|
2417 | 907 |
dsl_snapshot_destroy_one, &da, DS_FIND_CHILDREN); |
2199 | 908 |
|
909 |
if (err == 0) |
|
910 |
err = dsl_sync_task_group_wait(da.dstg); |
|
911 |
||
912 |
for (dst = list_head(&da.dstg->dstg_tasks); dst; |
|
913 |
dst = list_next(&da.dstg->dstg_tasks, dst)) { |
|
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
914 |
struct dsl_ds_destroyarg *dsda = dst->dst_arg1; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
915 |
dsl_dataset_t *ds = dsda->ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
916 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
917 |
/* |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
918 |
* Return the file system name that triggered the error |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
919 |
*/ |
2199 | 920 |
if (dst->dst_err) { |
921 |
dsl_dataset_name(ds, fsname); |
|
4603
c7840c367d00
6494569 zfs recv -d pool/<doesn't exist> core dumps for top-level filesystem backups
ahrens
parents:
4577
diff
changeset
|
922 |
*strchr(fsname, '@') = '\0'; |
2199 | 923 |
} |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
924 |
ASSERT3P(dsda->rm_origin, ==, NULL); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
925 |
dsl_dataset_disown(ds, da.dstg); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
926 |
kmem_free(dsda, sizeof (struct dsl_ds_destroyarg)); |
2199 | 927 |
} |
928 |
||
929 |
dsl_sync_task_group_destroy(da.dstg); |
|
930 |
spa_close(spa, FTAG); |
|
931 |
return (err); |
|
932 |
} |
|
933 |
||
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
934 |
static boolean_t |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
935 |
dsl_dataset_might_destroy_origin(dsl_dataset_t *ds) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
936 |
{ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
937 |
boolean_t might_destroy = B_FALSE; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
938 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
939 |
mutex_enter(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
940 |
if (ds->ds_phys->ds_num_children == 2 && ds->ds_userrefs == 0 && |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
941 |
DS_IS_DEFER_DESTROY(ds)) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
942 |
might_destroy = B_TRUE; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
943 |
mutex_exit(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
944 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
945 |
return (might_destroy); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
946 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
947 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
948 |
/* |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
949 |
* If we're removing a clone, and these three conditions are true: |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
950 |
* 1) the clone's origin has no other children |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
951 |
* 2) the clone's origin has no user references |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
952 |
* 3) the clone's origin has been marked for deferred destruction |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
953 |
* Then, prepare to remove the origin as part of this sync task group. |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
954 |
*/ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
955 |
static int |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
956 |
dsl_dataset_origin_rm_prep(struct dsl_ds_destroyarg *dsda, void *tag) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
957 |
{ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
958 |
dsl_dataset_t *ds = dsda->ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
959 |
dsl_dataset_t *origin = ds->ds_prev; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
960 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
961 |
if (dsl_dataset_might_destroy_origin(origin)) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
962 |
char *name; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
963 |
int namelen; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
964 |
int error; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
965 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
966 |
namelen = dsl_dataset_namelen(origin) + 1; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
967 |
name = kmem_alloc(namelen, KM_SLEEP); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
968 |
dsl_dataset_name(origin, name); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
969 |
#ifdef _KERNEL |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
970 |
error = zfs_unmount_snap(name, NULL); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
971 |
if (error) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
972 |
kmem_free(name, namelen); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
973 |
return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
974 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
975 |
#endif |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
976 |
error = dsl_dataset_own(name, B_TRUE, tag, &origin); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
977 |
kmem_free(name, namelen); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
978 |
if (error) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
979 |
return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
980 |
dsda->rm_origin = origin; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
981 |
dsl_dataset_make_exclusive(origin, tag); |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
982 |
|
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
983 |
if (origin->ds_objset != NULL) { |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
984 |
dmu_objset_evict(origin->ds_objset); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
985 |
origin->ds_objset = NULL; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
986 |
} |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
987 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
988 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
989 |
return (0); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
990 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
991 |
|
5367 | 992 |
/* |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
993 |
* ds must be opened as OWNER. On return (whether successful or not), |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
994 |
* ds will be closed and caller can no longer dereference it. |
5367 | 995 |
*/ |
789 | 996 |
int |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
997 |
dsl_dataset_destroy(dsl_dataset_t *ds, void *tag, boolean_t defer) |
789 | 998 |
{ |
999 |
int err; |
|
2199 | 1000 |
dsl_sync_task_group_t *dstg; |
1001 |
objset_t *os; |
|
789 | 1002 |
dsl_dir_t *dd; |
2199 | 1003 |
uint64_t obj; |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1004 |
struct dsl_ds_destroyarg dsda = {0}; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1005 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1006 |
dsda.ds = ds; |
2199 | 1007 |
|
5367 | 1008 |
if (dsl_dataset_is_snapshot(ds)) { |
2199 | 1009 |
/* Destroying a snapshot is simpler */ |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1010 |
dsl_dataset_make_exclusive(ds, tag); |
7237
f47d41541b14
PSARC 2008/393 zfs primarycache and secondarycache properties
ek110237
parents:
7077
diff
changeset
|
1011 |
|
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
1012 |
if (ds->ds_objset != NULL) { |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
1013 |
dmu_objset_evict(ds->ds_objset); |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
1014 |
ds->ds_objset = NULL; |
7237
f47d41541b14
PSARC 2008/393 zfs primarycache and secondarycache properties
ek110237
parents:
7077
diff
changeset
|
1015 |
} |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1016 |
dsda.defer = defer; |
2199 | 1017 |
err = dsl_sync_task_do(ds->ds_dir->dd_pool, |
1018 |
dsl_dataset_destroy_check, dsl_dataset_destroy_sync, |
|
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1019 |
&dsda, tag, 0); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1020 |
ASSERT3P(dsda.rm_origin, ==, NULL); |
5367 | 1021 |
goto out; |
10385
21cb6e67d108
6873727 zfs destroy -d <fs> should fail more gracefully when children are present
Chris Kirby <chris.kirby@sun.com>
parents:
10373
diff
changeset
|
1022 |
} else if (defer) { |
21cb6e67d108
6873727 zfs destroy -d <fs> should fail more gracefully when children are present
Chris Kirby <chris.kirby@sun.com>
parents:
10373
diff
changeset
|
1023 |
err = EINVAL; |
21cb6e67d108
6873727 zfs destroy -d <fs> should fail more gracefully when children are present
Chris Kirby <chris.kirby@sun.com>
parents:
10373
diff
changeset
|
1024 |
goto out; |
2199 | 1025 |
} |
1026 |
||
1027 |
dd = ds->ds_dir; |
|
789 | 1028 |
|
2199 | 1029 |
/* |
1030 |
* Check for errors and mark this ds as inconsistent, in |
|
1031 |
* case we crash while freeing the objects. |
|
1032 |
*/ |
|
1033 |
err = dsl_sync_task_do(dd->dd_pool, dsl_dataset_destroy_begin_check, |
|
1034 |
dsl_dataset_destroy_begin_sync, ds, NULL, 0); |
|
5367 | 1035 |
if (err) |
1036 |
goto out; |
|
1037 |
||
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
1038 |
err = dmu_objset_from_ds(ds, &os); |
5367 | 1039 |
if (err) |
1040 |
goto out; |
|
2199 | 1041 |
|
1042 |
/* |
|
1043 |
* remove the objects in open context, so that we won't |
|
1044 |
* have too much to do in syncing context. |
|
1045 |
*/ |
|
3025
4e5ee8301d84
6424466 "panic: data after EOF" when unmounting abused pool
ahrens
parents:
2885
diff
changeset
|
1046 |
for (obj = 0; err == 0; err = dmu_object_next(os, &obj, FALSE, |
4e5ee8301d84
6424466 "panic: data after EOF" when unmounting abused pool
ahrens
parents:
2885
diff
changeset
|
1047 |
ds->ds_phys->ds_prev_snap_txg)) { |
6992 | 1048 |
/* |
1049 |
* Ignore errors, if there is not enough disk space |
|
1050 |
* we will deal with it in dsl_dataset_destroy_sync(). |
|
1051 |
*/ |
|
1052 |
(void) dmu_free_object(os, obj); |
|
2199 | 1053 |
} |
1054 |
||
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1055 |
/* |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1056 |
* We need to sync out all in-flight IO before we try to evict |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1057 |
* (the dataset evict func is trying to clear the cached entries |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1058 |
* for this dataset in the ARC). |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1059 |
*/ |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1060 |
txg_wait_synced(dd->dd_pool, 0); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1061 |
|
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1062 |
/* |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1063 |
* If we managed to free all the objects in open |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1064 |
* context, the user space accounting should be zero. |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1065 |
*/ |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1066 |
if (ds->ds_phys->ds_bp.blk_fill == 0 && |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
1067 |
dmu_objset_userused_enabled(os)) { |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1068 |
uint64_t count; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1069 |
|
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1070 |
ASSERT(zap_count(os, DMU_USERUSED_OBJECT, &count) != 0 || |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1071 |
count == 0); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1072 |
ASSERT(zap_count(os, DMU_GROUPUSED_OBJECT, &count) != 0 || |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1073 |
count == 0); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1074 |
} |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1075 |
|
2199 | 1076 |
if (err != ESRCH) |
5367 | 1077 |
goto out; |
2199 | 1078 |
|
6975
c511f317869e
6717522 panic in dmu_objset_stats() due to freed objset_impl_t
maybee
parents:
6689
diff
changeset
|
1079 |
rw_enter(&dd->dd_pool->dp_config_rwlock, RW_READER); |
c511f317869e
6717522 panic in dmu_objset_stats() due to freed objset_impl_t
maybee
parents:
6689
diff
changeset
|
1080 |
err = dsl_dir_open_obj(dd->dd_pool, dd->dd_object, NULL, FTAG, &dd); |
c511f317869e
6717522 panic in dmu_objset_stats() due to freed objset_impl_t
maybee
parents:
6689
diff
changeset
|
1081 |
rw_exit(&dd->dd_pool->dp_config_rwlock); |
c511f317869e
6717522 panic in dmu_objset_stats() due to freed objset_impl_t
maybee
parents:
6689
diff
changeset
|
1082 |
|
c511f317869e
6717522 panic in dmu_objset_stats() due to freed objset_impl_t
maybee
parents:
6689
diff
changeset
|
1083 |
if (err) |
c511f317869e
6717522 panic in dmu_objset_stats() due to freed objset_impl_t
maybee
parents:
6689
diff
changeset
|
1084 |
goto out; |
c511f317869e
6717522 panic in dmu_objset_stats() due to freed objset_impl_t
maybee
parents:
6689
diff
changeset
|
1085 |
|
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
1086 |
if (ds->ds_objset) { |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1087 |
/* |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1088 |
* We need to sync out all in-flight IO before we try |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1089 |
* to evict (the dataset evict func is trying to clear |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1090 |
* the cached entries for this dataset in the ARC). |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1091 |
*/ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1092 |
txg_wait_synced(dd->dd_pool, 0); |
5367 | 1093 |
} |
1094 |
||
2199 | 1095 |
/* |
1096 |
* Blow away the dsl_dir + head dataset. |
|
1097 |
*/ |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1098 |
dsl_dataset_make_exclusive(ds, tag); |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
1099 |
if (ds->ds_objset) { |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
1100 |
dmu_objset_evict(ds->ds_objset); |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
1101 |
ds->ds_objset = NULL; |
6975
c511f317869e
6717522 panic in dmu_objset_stats() due to freed objset_impl_t
maybee
parents:
6689
diff
changeset
|
1102 |
} |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1103 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1104 |
/* |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1105 |
* If we're removing a clone, we might also need to remove its |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1106 |
* origin. |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1107 |
*/ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1108 |
do { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1109 |
dsda.need_prep = B_FALSE; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1110 |
if (dsl_dir_is_clone(dd)) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1111 |
err = dsl_dataset_origin_rm_prep(&dsda, tag); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1112 |
if (err) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1113 |
dsl_dir_close(dd, FTAG); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1114 |
goto out; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1115 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1116 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1117 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1118 |
dstg = dsl_sync_task_group_create(ds->ds_dir->dd_pool); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1119 |
dsl_sync_task_create(dstg, dsl_dataset_destroy_check, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1120 |
dsl_dataset_destroy_sync, &dsda, tag, 0); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1121 |
dsl_sync_task_create(dstg, dsl_dir_destroy_check, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1122 |
dsl_dir_destroy_sync, dd, FTAG, 0); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1123 |
err = dsl_sync_task_group_wait(dstg); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1124 |
dsl_sync_task_group_destroy(dstg); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1125 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1126 |
/* |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1127 |
* We could be racing against 'zfs release' or 'zfs destroy -d' |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1128 |
* on the origin snap, in which case we can get EBUSY if we |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1129 |
* needed to destroy the origin snap but were not ready to |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1130 |
* do so. |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1131 |
*/ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1132 |
if (dsda.need_prep) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1133 |
ASSERT(err == EBUSY); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1134 |
ASSERT(dsl_dir_is_clone(dd)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1135 |
ASSERT(dsda.rm_origin == NULL); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1136 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1137 |
} while (dsda.need_prep); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1138 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1139 |
if (dsda.rm_origin != NULL) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1140 |
dsl_dataset_disown(dsda.rm_origin, tag); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1141 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1142 |
/* if it is successful, dsl_dir_destroy_sync will close the dd */ |
5367 | 1143 |
if (err) |
2199 | 1144 |
dsl_dir_close(dd, FTAG); |
5367 | 1145 |
out: |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1146 |
dsl_dataset_disown(ds, tag); |
789 | 1147 |
return (err); |
1148 |
} |
|
1149 |
||
3547
e396e0a440b1
6512391 DMU should leverage ZIO dependencies to achieve greater parallelism
maybee
parents:
3444
diff
changeset
|
1150 |
blkptr_t * |
e396e0a440b1
6512391 DMU should leverage ZIO dependencies to achieve greater parallelism
maybee
parents:
3444
diff
changeset
|
1151 |
dsl_dataset_get_blkptr(dsl_dataset_t *ds) |
789 | 1152 |
{ |
3547
e396e0a440b1
6512391 DMU should leverage ZIO dependencies to achieve greater parallelism
maybee
parents:
3444
diff
changeset
|
1153 |
return (&ds->ds_phys->ds_bp); |
789 | 1154 |
} |
1155 |
||
1156 |
void |
|
1157 |
dsl_dataset_set_blkptr(dsl_dataset_t *ds, blkptr_t *bp, dmu_tx_t *tx) |
|
1158 |
{ |
|
1159 |
ASSERT(dmu_tx_is_syncing(tx)); |
|
1160 |
/* If it's the meta-objset, set dp_meta_rootbp */ |
|
1161 |
if (ds == NULL) { |
|
1162 |
tx->tx_pool->dp_meta_rootbp = *bp; |
|
1163 |
} else { |
|
1164 |
dmu_buf_will_dirty(ds->ds_dbuf, tx); |
|
1165 |
ds->ds_phys->ds_bp = *bp; |
|
1166 |
} |
|
1167 |
} |
|
1168 |
||
1169 |
spa_t * |
|
1170 |
dsl_dataset_get_spa(dsl_dataset_t *ds) |
|
1171 |
{ |
|
1172 |
return (ds->ds_dir->dd_pool->dp_spa); |
|
1173 |
} |
|
1174 |
||
1175 |
void |
|
1176 |
dsl_dataset_dirty(dsl_dataset_t *ds, dmu_tx_t *tx) |
|
1177 |
{ |
|
1178 |
dsl_pool_t *dp; |
|
1179 |
||
1180 |
if (ds == NULL) /* this is the meta-objset */ |
|
1181 |
return; |
|
1182 |
||
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
1183 |
ASSERT(ds->ds_objset != NULL); |
2885 | 1184 |
|
1185 |
if (ds->ds_phys->ds_next_snap_obj != 0) |
|
1186 |
panic("dirtying snapshot!"); |
|
789 | 1187 |
|
1188 |
dp = ds->ds_dir->dd_pool; |
|
1189 |
||
1190 |
if (txg_list_add(&dp->dp_dirty_datasets, ds, tx->tx_txg) == 0) { |
|
1191 |
/* up the hold count until we can be written out */ |
|
1192 |
dmu_buf_add_ref(ds->ds_dbuf, ds); |
|
1193 |
} |
|
1194 |
} |
|
1195 |
||
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1196 |
/* |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1197 |
* The unique space in the head dataset can be calculated by subtracting |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1198 |
* the space used in the most recent snapshot, that is still being used |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1199 |
* in this file system, from the space currently in use. To figure out |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1200 |
* the space in the most recent snapshot still in use, we need to take |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1201 |
* the total space used in the snapshot and subtract out the space that |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1202 |
* has been freed up since the snapshot was taken. |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1203 |
*/ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1204 |
static void |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1205 |
dsl_dataset_recalc_head_uniq(dsl_dataset_t *ds) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1206 |
{ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1207 |
uint64_t mrs_used; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1208 |
uint64_t dlused, dlcomp, dluncomp; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1209 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1210 |
ASSERT(ds->ds_object == ds->ds_dir->dd_phys->dd_head_dataset_obj); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1211 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1212 |
if (ds->ds_phys->ds_prev_snap_obj != 0) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1213 |
mrs_used = ds->ds_prev->ds_phys->ds_used_bytes; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1214 |
else |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1215 |
mrs_used = 0; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1216 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1217 |
VERIFY(0 == bplist_space(&ds->ds_deadlist, &dlused, &dlcomp, |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1218 |
&dluncomp)); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1219 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1220 |
ASSERT3U(dlused, <=, mrs_used); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1221 |
ds->ds_phys->ds_unique_bytes = |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1222 |
ds->ds_phys->ds_used_bytes - (mrs_used - dlused); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1223 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1224 |
if (!DS_UNIQUE_IS_ACCURATE(ds) && |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1225 |
spa_version(ds->ds_dir->dd_pool->dp_spa) >= |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1226 |
SPA_VERSION_UNIQUE_ACCURATE) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1227 |
ds->ds_phys->ds_flags |= DS_FLAG_UNIQUE_ACCURATE; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1228 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1229 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1230 |
static uint64_t |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1231 |
dsl_dataset_unique(dsl_dataset_t *ds) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1232 |
{ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1233 |
if (!DS_UNIQUE_IS_ACCURATE(ds) && !dsl_dataset_is_snapshot(ds)) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1234 |
dsl_dataset_recalc_head_uniq(ds); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1235 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1236 |
return (ds->ds_phys->ds_unique_bytes); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1237 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1238 |
|
789 | 1239 |
struct killarg { |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1240 |
dsl_dataset_t *ds; |
789 | 1241 |
zio_t *zio; |
1242 |
dmu_tx_t *tx; |
|
1243 |
}; |
|
1244 |
||
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1245 |
/* ARGSUSED */ |
789 | 1246 |
static int |
7837
001de5627df3
6333409 traversal code should be able to issue multiple reads in parallel
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7754
diff
changeset
|
1247 |
kill_blkptr(spa_t *spa, blkptr_t *bp, const zbookmark_t *zb, |
001de5627df3
6333409 traversal code should be able to issue multiple reads in parallel
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7754
diff
changeset
|
1248 |
const dnode_phys_t *dnp, void *arg) |
789 | 1249 |
{ |
1250 |
struct killarg *ka = arg; |
|
7837
001de5627df3
6333409 traversal code should be able to issue multiple reads in parallel
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7754
diff
changeset
|
1251 |
|
001de5627df3
6333409 traversal code should be able to issue multiple reads in parallel
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7754
diff
changeset
|
1252 |
if (bp == NULL) |
001de5627df3
6333409 traversal code should be able to issue multiple reads in parallel
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7754
diff
changeset
|
1253 |
return (0); |
789 | 1254 |
|
8746
e1d96ca6808c
6796377 panic on rollback in space_map_add()
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
8525
diff
changeset
|
1255 |
if ((zb->zb_level == -1ULL && zb->zb_blkid != 0) || |
e1d96ca6808c
6796377 panic on rollback in space_map_add()
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
8525
diff
changeset
|
1256 |
(zb->zb_object != 0 && dnp == NULL)) { |
e1d96ca6808c
6796377 panic on rollback in space_map_add()
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
8525
diff
changeset
|
1257 |
/* |
e1d96ca6808c
6796377 panic on rollback in space_map_add()
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
8525
diff
changeset
|
1258 |
* It's a block in the intent log. It has no |
e1d96ca6808c
6796377 panic on rollback in space_map_add()
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
8525
diff
changeset
|
1259 |
* accounting, so just free it. |
e1d96ca6808c
6796377 panic on rollback in space_map_add()
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
8525
diff
changeset
|
1260 |
*/ |
e1d96ca6808c
6796377 panic on rollback in space_map_add()
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
8525
diff
changeset
|
1261 |
VERIFY3U(0, ==, dsl_free(ka->zio, ka->tx->tx_pool, |
e1d96ca6808c
6796377 panic on rollback in space_map_add()
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
8525
diff
changeset
|
1262 |
ka->tx->tx_txg, bp, NULL, NULL, ARC_NOWAIT)); |
e1d96ca6808c
6796377 panic on rollback in space_map_add()
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
8525
diff
changeset
|
1263 |
} else { |
e1d96ca6808c
6796377 panic on rollback in space_map_add()
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
8525
diff
changeset
|
1264 |
ASSERT3U(bp->blk_birth, >, ka->ds->ds_phys->ds_prev_snap_txg); |
e1d96ca6808c
6796377 panic on rollback in space_map_add()
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
8525
diff
changeset
|
1265 |
(void) dsl_dataset_block_kill(ka->ds, bp, ka->zio, ka->tx); |
e1d96ca6808c
6796377 panic on rollback in space_map_add()
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
8525
diff
changeset
|
1266 |
} |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1267 |
|
789 | 1268 |
return (0); |
1269 |
} |
|
1270 |
||
1271 |
/* ARGSUSED */ |
|
2199 | 1272 |
static int |
1273 |
dsl_dataset_destroy_begin_check(void *arg1, void *arg2, dmu_tx_t *tx) |
|
1731
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1274 |
{ |
2199 | 1275 |
dsl_dataset_t *ds = arg1; |
5367 | 1276 |
objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; |
1277 |
uint64_t count; |
|
1278 |
int err; |
|
1731
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1279 |
|
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1280 |
/* |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1281 |
* Can't delete a head dataset if there are snapshots of it. |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1282 |
* (Except if the only snapshots are from the branch we cloned |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1283 |
* from.) |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1284 |
*/ |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1285 |
if (ds->ds_prev != NULL && |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1286 |
ds->ds_prev->ds_phys->ds_next_snap_obj == ds->ds_object) |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1287 |
return (EINVAL); |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1288 |
|
5367 | 1289 |
/* |
1290 |
* This is really a dsl_dir thing, but check it here so that |
|
1291 |
* we'll be less likely to leave this dataset inconsistent & |
|
1292 |
* nearly destroyed. |
|
1293 |
*/ |
|
1294 |
err = zap_count(mos, ds->ds_dir->dd_phys->dd_child_dir_zapobj, &count); |
|
1295 |
if (err) |
|
1296 |
return (err); |
|
1297 |
if (count != 0) |
|
1298 |
return (EEXIST); |
|
1299 |
||
1731
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1300 |
return (0); |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1301 |
} |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1302 |
|
2199 | 1303 |
/* ARGSUSED */ |
1304 |
static void |
|
4543 | 1305 |
dsl_dataset_destroy_begin_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) |
789 | 1306 |
{ |
2199 | 1307 |
dsl_dataset_t *ds = arg1; |
4543 | 1308 |
dsl_pool_t *dp = ds->ds_dir->dd_pool; |
789 | 1309 |
|
2199 | 1310 |
/* Mark it as inconsistent on-disk, in case we crash */ |
1311 |
dmu_buf_will_dirty(ds->ds_dbuf, tx); |
|
1312 |
ds->ds_phys->ds_flags |= DS_FLAG_INCONSISTENT; |
|
4543 | 1313 |
|
1314 |
spa_history_internal_log(LOG_DS_DESTROY_BEGIN, dp->dp_spa, tx, |
|
1315 |
cr, "dataset = %llu", ds->ds_object); |
|
2199 | 1316 |
} |
789 | 1317 |
|
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1318 |
static int |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1319 |
dsl_dataset_origin_check(struct dsl_ds_destroyarg *dsda, void *tag, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1320 |
dmu_tx_t *tx) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1321 |
{ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1322 |
dsl_dataset_t *ds = dsda->ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1323 |
dsl_dataset_t *ds_prev = ds->ds_prev; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1324 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1325 |
if (dsl_dataset_might_destroy_origin(ds_prev)) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1326 |
struct dsl_ds_destroyarg ndsda = {0}; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1327 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1328 |
/* |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1329 |
* If we're not prepared to remove the origin, don't remove |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1330 |
* the clone either. |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1331 |
*/ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1332 |
if (dsda->rm_origin == NULL) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1333 |
dsda->need_prep = B_TRUE; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1334 |
return (EBUSY); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1335 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1336 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1337 |
ndsda.ds = ds_prev; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1338 |
ndsda.is_origin_rm = B_TRUE; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1339 |
return (dsl_dataset_destroy_check(&ndsda, tag, tx)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1340 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1341 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1342 |
/* |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1343 |
* If we're not going to remove the origin after all, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1344 |
* undo the open context setup. |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1345 |
*/ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1346 |
if (dsda->rm_origin != NULL) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1347 |
dsl_dataset_disown(dsda->rm_origin, tag); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1348 |
dsda->rm_origin = NULL; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1349 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1350 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1351 |
return (0); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1352 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1353 |
|
2199 | 1354 |
/* ARGSUSED */ |
5367 | 1355 |
int |
2199 | 1356 |
dsl_dataset_destroy_check(void *arg1, void *arg2, dmu_tx_t *tx) |
1357 |
{ |
|
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1358 |
struct dsl_ds_destroyarg *dsda = arg1; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1359 |
dsl_dataset_t *ds = dsda->ds; |
789 | 1360 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1361 |
/* we have an owner hold, so noone else can destroy us */ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1362 |
ASSERT(!DSL_DATASET_IS_DESTROYED(ds)); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1363 |
|
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1364 |
/* |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1365 |
* Only allow deferred destroy on pools that support it. |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1366 |
* NOTE: deferred destroy is only supported on snapshots. |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1367 |
*/ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1368 |
if (dsda->defer) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1369 |
if (spa_version(ds->ds_dir->dd_pool->dp_spa) < |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1370 |
SPA_VERSION_USERREFS) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1371 |
return (ENOTSUP); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1372 |
ASSERT(dsl_dataset_is_snapshot(ds)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1373 |
return (0); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1374 |
} |
789 | 1375 |
|
1376 |
/* |
|
1377 |
* Can't delete a head dataset if there are snapshots of it. |
|
1378 |
* (Except if the only snapshots are from the branch we cloned |
|
1379 |
* from.) |
|
1380 |
*/ |
|
1381 |
if (ds->ds_prev != NULL && |
|
2199 | 1382 |
ds->ds_prev->ds_phys->ds_next_snap_obj == ds->ds_object) |
789 | 1383 |
return (EINVAL); |
1384 |
||
1385 |
/* |
|
1386 |
* If we made changes this txg, traverse_dsl_dataset won't find |
|
1387 |
* them. Try again. |
|
1388 |
*/ |
|
2199 | 1389 |
if (ds->ds_phys->ds_bp.blk_birth >= tx->tx_txg) |
789 | 1390 |
return (EAGAIN); |
2199 | 1391 |
|
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1392 |
if (dsl_dataset_is_snapshot(ds)) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1393 |
/* |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1394 |
* If this snapshot has an elevated user reference count, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1395 |
* we can't destroy it yet. |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1396 |
*/ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1397 |
if (ds->ds_userrefs > 0 && !dsda->releasing) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1398 |
return (EBUSY); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1399 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1400 |
mutex_enter(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1401 |
/* |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1402 |
* Can't delete a branch point. However, if we're destroying |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1403 |
* a clone and removing its origin due to it having a user |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1404 |
* hold count of 0 and having been marked for deferred destroy, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1405 |
* it's OK for the origin to have a single clone. |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1406 |
*/ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1407 |
if (ds->ds_phys->ds_num_children > |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1408 |
(dsda->is_origin_rm ? 2 : 1)) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1409 |
mutex_exit(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1410 |
return (EEXIST); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1411 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1412 |
mutex_exit(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1413 |
} else if (dsl_dir_is_clone(ds->ds_dir)) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1414 |
return (dsl_dataset_origin_check(dsda, arg2, tx)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1415 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1416 |
|
2199 | 1417 |
/* XXX we should do some i/o error checking... */ |
1418 |
return (0); |
|
1419 |
} |
|
1420 |
||
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1421 |
struct refsarg { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1422 |
kmutex_t lock; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1423 |
boolean_t gone; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1424 |
kcondvar_t cv; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1425 |
}; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1426 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1427 |
/* ARGSUSED */ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1428 |
static void |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1429 |
dsl_dataset_refs_gone(dmu_buf_t *db, void *argv) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1430 |
{ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1431 |
struct refsarg *arg = argv; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1432 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1433 |
mutex_enter(&arg->lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1434 |
arg->gone = TRUE; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1435 |
cv_signal(&arg->cv); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1436 |
mutex_exit(&arg->lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1437 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1438 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1439 |
static void |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1440 |
dsl_dataset_drain_refs(dsl_dataset_t *ds, void *tag) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1441 |
{ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1442 |
struct refsarg arg; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1443 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1444 |
mutex_init(&arg.lock, NULL, MUTEX_DEFAULT, NULL); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1445 |
cv_init(&arg.cv, NULL, CV_DEFAULT, NULL); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1446 |
arg.gone = FALSE; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1447 |
(void) dmu_buf_update_user(ds->ds_dbuf, ds, &arg, &ds->ds_phys, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1448 |
dsl_dataset_refs_gone); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1449 |
dmu_buf_rele(ds->ds_dbuf, tag); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1450 |
mutex_enter(&arg.lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1451 |
while (!arg.gone) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1452 |
cv_wait(&arg.cv, &arg.lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1453 |
ASSERT(arg.gone); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1454 |
mutex_exit(&arg.lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1455 |
ds->ds_dbuf = NULL; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1456 |
ds->ds_phys = NULL; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1457 |
mutex_destroy(&arg.lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1458 |
cv_destroy(&arg.cv); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1459 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1460 |
|
5367 | 1461 |
void |
4543 | 1462 |
dsl_dataset_destroy_sync(void *arg1, void *tag, cred_t *cr, dmu_tx_t *tx) |
2199 | 1463 |
{ |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1464 |
struct dsl_ds_destroyarg *dsda = arg1; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1465 |
dsl_dataset_t *ds = dsda->ds; |
2199 | 1466 |
zio_t *zio; |
1467 |
int err; |
|
1468 |
int after_branch_point = FALSE; |
|
1469 |
dsl_pool_t *dp = ds->ds_dir->dd_pool; |
|
1470 |
objset_t *mos = dp->dp_meta_objset; |
|
1471 |
dsl_dataset_t *ds_prev = NULL; |
|
1472 |
uint64_t obj; |
|
1473 |
||
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1474 |
ASSERT(ds->ds_owner); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1475 |
ASSERT(dsda->defer || ds->ds_phys->ds_num_children <= 1); |
2199 | 1476 |
ASSERT(ds->ds_prev == NULL || |
1477 |
ds->ds_prev->ds_phys->ds_next_snap_obj != ds->ds_object); |
|
1478 |
ASSERT3U(ds->ds_phys->ds_bp.blk_birth, <=, tx->tx_txg); |
|
1479 |
||
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1480 |
if (dsda->defer) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1481 |
ASSERT(spa_version(dp->dp_spa) >= SPA_VERSION_USERREFS); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1482 |
if (ds->ds_userrefs > 0 || ds->ds_phys->ds_num_children > 1) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1483 |
dmu_buf_will_dirty(ds->ds_dbuf, tx); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1484 |
ds->ds_phys->ds_flags |= DS_FLAG_DEFER_DESTROY; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1485 |
return; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1486 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1487 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1488 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1489 |
/* signal any waiters that this dataset is going away */ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1490 |
mutex_enter(&ds->ds_lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1491 |
ds->ds_owner = dsl_reaper; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1492 |
cv_broadcast(&ds->ds_exclusive_cv); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1493 |
mutex_exit(&ds->ds_lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1494 |
|
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1495 |
/* Remove our reservation */ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1496 |
if (ds->ds_reserved != 0) { |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1497 |
uint64_t val = 0; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1498 |
dsl_dataset_set_reservation_sync(ds, &val, cr, tx); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1499 |
ASSERT3U(ds->ds_reserved, ==, 0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1500 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1501 |
|
2199 | 1502 |
ASSERT(RW_WRITE_HELD(&dp->dp_config_rwlock)); |
1503 |
||
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1504 |
dsl_pool_ds_destroyed(ds, tx); |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1505 |
|
2199 | 1506 |
obj = ds->ds_object; |
789 | 1507 |
|
1508 |
if (ds->ds_phys->ds_prev_snap_obj != 0) { |
|
1509 |
if (ds->ds_prev) { |
|
1510 |
ds_prev = ds->ds_prev; |
|
1511 |
} else { |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1512 |
VERIFY(0 == dsl_dataset_hold_obj(dp, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1513 |
ds->ds_phys->ds_prev_snap_obj, FTAG, &ds_prev)); |
789 | 1514 |
} |
1515 |
after_branch_point = |
|
1516 |
(ds_prev->ds_phys->ds_next_snap_obj != obj); |
|
1517 |
||
1518 |
dmu_buf_will_dirty(ds_prev->ds_dbuf, tx); |
|
1519 |
if (after_branch_point && |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1520 |
ds_prev->ds_phys->ds_next_clones_obj != 0) { |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1521 |
VERIFY3U(0, ==, zap_remove_int(mos, |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1522 |
ds_prev->ds_phys->ds_next_clones_obj, obj, tx)); |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1523 |
if (ds->ds_phys->ds_next_snap_obj != 0) { |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1524 |
VERIFY(0 == zap_add_int(mos, |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1525 |
ds_prev->ds_phys->ds_next_clones_obj, |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1526 |
ds->ds_phys->ds_next_snap_obj, tx)); |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1527 |
} |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1528 |
} |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1529 |
if (after_branch_point && |
789 | 1530 |
ds->ds_phys->ds_next_snap_obj == 0) { |
1531 |
/* This clone is toast. */ |
|
1532 |
ASSERT(ds_prev->ds_phys->ds_num_children > 1); |
|
1533 |
ds_prev->ds_phys->ds_num_children--; |
|
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1534 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1535 |
/* |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1536 |
* If the clone's origin has no other clones, no |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1537 |
* user holds, and has been marked for deferred |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1538 |
* deletion, then we should have done the necessary |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1539 |
* destroy setup for it. |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1540 |
*/ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1541 |
if (ds_prev->ds_phys->ds_num_children == 1 && |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1542 |
ds_prev->ds_userrefs == 0 && |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1543 |
DS_IS_DEFER_DESTROY(ds_prev)) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1544 |
ASSERT3P(dsda->rm_origin, !=, NULL); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1545 |
} else { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1546 |
ASSERT3P(dsda->rm_origin, ==, NULL); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1547 |
} |
789 | 1548 |
} else if (!after_branch_point) { |
1549 |
ds_prev->ds_phys->ds_next_snap_obj = |
|
1550 |
ds->ds_phys->ds_next_snap_obj; |
|
1551 |
} |
|
1552 |
} |
|
1553 |
||
1554 |
zio = zio_root(dp->dp_spa, NULL, NULL, ZIO_FLAG_MUSTSUCCEED); |
|
1555 |
||
1556 |
if (ds->ds_phys->ds_next_snap_obj != 0) { |
|
2199 | 1557 |
blkptr_t bp; |
789 | 1558 |
dsl_dataset_t *ds_next; |
1559 |
uint64_t itor = 0; |
|
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1560 |
uint64_t old_unique; |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1561 |
int64_t used = 0, compressed = 0, uncompressed = 0; |
789 | 1562 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1563 |
VERIFY(0 == dsl_dataset_hold_obj(dp, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1564 |
ds->ds_phys->ds_next_snap_obj, FTAG, &ds_next)); |
789 | 1565 |
ASSERT3U(ds_next->ds_phys->ds_prev_snap_obj, ==, obj); |
1566 |
||
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1567 |
old_unique = dsl_dataset_unique(ds_next); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1568 |
|
789 | 1569 |
dmu_buf_will_dirty(ds_next->ds_dbuf, tx); |
1570 |
ds_next->ds_phys->ds_prev_snap_obj = |
|
1571 |
ds->ds_phys->ds_prev_snap_obj; |
|
1572 |
ds_next->ds_phys->ds_prev_snap_txg = |
|
1573 |
ds->ds_phys->ds_prev_snap_txg; |
|
1574 |
ASSERT3U(ds->ds_phys->ds_prev_snap_txg, ==, |
|
1575 |
ds_prev ? ds_prev->ds_phys->ds_creation_txg : 0); |
|
1576 |
||
1577 |
/* |
|
1578 |
* Transfer to our deadlist (which will become next's |
|
1579 |
* new deadlist) any entries from next's current |
|
1580 |
* deadlist which were born before prev, and free the |
|
1581 |
* other entries. |
|
1582 |
* |
|
1583 |
* XXX we're doing this long task with the config lock held |
|
1584 |
*/ |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1585 |
while (bplist_iterate(&ds_next->ds_deadlist, &itor, &bp) == 0) { |
789 | 1586 |
if (bp.blk_birth <= ds->ds_phys->ds_prev_snap_txg) { |
1544 | 1587 |
VERIFY(0 == bplist_enqueue(&ds->ds_deadlist, |
1588 |
&bp, tx)); |
|
789 | 1589 |
if (ds_prev && !after_branch_point && |
1590 |
bp.blk_birth > |
|
1591 |
ds_prev->ds_phys->ds_prev_snap_txg) { |
|
1592 |
ds_prev->ds_phys->ds_unique_bytes += |
|
2082 | 1593 |
bp_get_dasize(dp->dp_spa, &bp); |
789 | 1594 |
} |
1595 |
} else { |
|
2082 | 1596 |
used += bp_get_dasize(dp->dp_spa, &bp); |
789 | 1597 |
compressed += BP_GET_PSIZE(&bp); |
1598 |
uncompressed += BP_GET_UCSIZE(&bp); |
|
1599 |
/* XXX check return value? */ |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1600 |
(void) dsl_free(zio, dp, tx->tx_txg, |
789 | 1601 |
&bp, NULL, NULL, ARC_NOWAIT); |
1602 |
} |
|
1603 |
} |
|
1604 |
||
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1605 |
ASSERT3U(used, ==, ds->ds_phys->ds_unique_bytes); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1606 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1607 |
/* change snapused */ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1608 |
dsl_dir_diduse_space(ds->ds_dir, DD_USED_SNAP, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1609 |
-used, -compressed, -uncompressed, tx); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1610 |
|
789 | 1611 |
/* free next's deadlist */ |
1612 |
bplist_close(&ds_next->ds_deadlist); |
|
1613 |
bplist_destroy(mos, ds_next->ds_phys->ds_deadlist_obj, tx); |
|
1614 |
||
1615 |
/* set next's deadlist to our deadlist */ |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1616 |
bplist_close(&ds->ds_deadlist); |
789 | 1617 |
ds_next->ds_phys->ds_deadlist_obj = |
1618 |
ds->ds_phys->ds_deadlist_obj; |
|
1544 | 1619 |
VERIFY(0 == bplist_open(&ds_next->ds_deadlist, mos, |
1620 |
ds_next->ds_phys->ds_deadlist_obj)); |
|
789 | 1621 |
ds->ds_phys->ds_deadlist_obj = 0; |
1622 |
||
1623 |
if (ds_next->ds_phys->ds_next_snap_obj != 0) { |
|
1624 |
/* |
|
1625 |
* Update next's unique to include blocks which |
|
1626 |
* were previously shared by only this snapshot |
|
1627 |
* and it. Those blocks will be born after the |
|
1628 |
* prev snap and before this snap, and will have |
|
1629 |
* died after the next snap and before the one |
|
1630 |
* after that (ie. be on the snap after next's |
|
1631 |
* deadlist). |
|
1632 |
* |
|
1633 |
* XXX we're doing this long task with the |
|
1634 |
* config lock held |
|
1635 |
*/ |
|
1636 |
dsl_dataset_t *ds_after_next; |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1637 |
uint64_t space; |
789 | 1638 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1639 |
VERIFY(0 == dsl_dataset_hold_obj(dp, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1640 |
ds_next->ds_phys->ds_next_snap_obj, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1641 |
FTAG, &ds_after_next)); |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1642 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1643 |
VERIFY(0 == |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1644 |
bplist_space_birthrange(&ds_after_next->ds_deadlist, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1645 |
ds->ds_phys->ds_prev_snap_txg, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1646 |
ds->ds_phys->ds_creation_txg, &space)); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1647 |
ds_next->ds_phys->ds_unique_bytes += space; |
789 | 1648 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1649 |
dsl_dataset_rele(ds_after_next, FTAG); |
789 | 1650 |
ASSERT3P(ds_next->ds_prev, ==, NULL); |
1651 |
} else { |
|
1652 |
ASSERT3P(ds_next->ds_prev, ==, ds); |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1653 |
dsl_dataset_drop_ref(ds_next->ds_prev, ds_next); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1654 |
ds_next->ds_prev = NULL; |
789 | 1655 |
if (ds_prev) { |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1656 |
VERIFY(0 == dsl_dataset_get_ref(dp, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1657 |
ds->ds_phys->ds_prev_snap_obj, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1658 |
ds_next, &ds_next->ds_prev)); |
789 | 1659 |
} |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1660 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1661 |
dsl_dataset_recalc_head_uniq(ds_next); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1662 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1663 |
/* |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1664 |
* Reduce the amount of our unconsmed refreservation |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1665 |
* being charged to our parent by the amount of |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1666 |
* new unique data we have gained. |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1667 |
*/ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1668 |
if (old_unique < ds_next->ds_reserved) { |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1669 |
int64_t mrsdelta; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1670 |
uint64_t new_unique = |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1671 |
ds_next->ds_phys->ds_unique_bytes; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1672 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1673 |
ASSERT(old_unique <= new_unique); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1674 |
mrsdelta = MIN(new_unique - old_unique, |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1675 |
ds_next->ds_reserved - old_unique); |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1676 |
dsl_dir_diduse_space(ds->ds_dir, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1677 |
DD_USED_REFRSRV, -mrsdelta, 0, 0, tx); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1678 |
} |
789 | 1679 |
} |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1680 |
dsl_dataset_rele(ds_next, FTAG); |
789 | 1681 |
} else { |
1682 |
/* |
|
1683 |
* There's no next snapshot, so this is a head dataset. |
|
1684 |
* Destroy the deadlist. Unless it's a clone, the |
|
1685 |
* deadlist should be empty. (If it's a clone, it's |
|
1686 |
* safe to ignore the deadlist contents.) |
|
1687 |
*/ |
|
1688 |
struct killarg ka; |
|
1689 |
||
1690 |
ASSERT(after_branch_point || bplist_empty(&ds->ds_deadlist)); |
|
1691 |
bplist_close(&ds->ds_deadlist); |
|
1692 |
bplist_destroy(mos, ds->ds_phys->ds_deadlist_obj, tx); |
|
1693 |
ds->ds_phys->ds_deadlist_obj = 0; |
|
1694 |
||
1695 |
/* |
|
1696 |
* Free everything that we point to (that's born after |
|
1697 |
* the previous snapshot, if we are a clone) |
|
1698 |
* |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1699 |
* NB: this should be very quick, because we already |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1700 |
* freed all the objects in open context. |
789 | 1701 |
*/ |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1702 |
ka.ds = ds; |
789 | 1703 |
ka.zio = zio; |
1704 |
ka.tx = tx; |
|
7837
001de5627df3
6333409 traversal code should be able to issue multiple reads in parallel
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7754
diff
changeset
|
1705 |
err = traverse_dataset(ds, ds->ds_phys->ds_prev_snap_txg, |
001de5627df3
6333409 traversal code should be able to issue multiple reads in parallel
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7754
diff
changeset
|
1706 |
TRAVERSE_POST, kill_blkptr, &ka); |
789 | 1707 |
ASSERT3U(err, ==, 0); |
9390
887948510f80
6826861 assertion failed in dsl_dataset_destroy_sync when "zfs destroy" old fs
Chris Kirby <chris.kirby@sun.com>
parents:
8779
diff
changeset
|
1708 |
ASSERT(!DS_UNIQUE_IS_ACCURATE(ds) || |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1709 |
ds->ds_phys->ds_unique_bytes == 0); |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
1710 |
|
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
1711 |
if (ds->ds_prev != NULL) { |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
1712 |
dsl_dataset_rele(ds->ds_prev, ds); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
1713 |
ds->ds_prev = ds_prev = NULL; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
1714 |
} |
789 | 1715 |
} |
1716 |
||
1717 |
err = zio_wait(zio); |
|
1718 |
ASSERT3U(err, ==, 0); |
|
1719 |
||
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1720 |
if (ds->ds_dir->dd_phys->dd_head_dataset_obj == ds->ds_object) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1721 |
/* Erase the link in the dir */ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1722 |
dmu_buf_will_dirty(ds->ds_dir->dd_dbuf, tx); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1723 |
ds->ds_dir->dd_phys->dd_head_dataset_obj = 0; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1724 |
ASSERT(ds->ds_phys->ds_snapnames_zapobj != 0); |
789 | 1725 |
err = zap_destroy(mos, ds->ds_phys->ds_snapnames_zapobj, tx); |
1726 |
ASSERT(err == 0); |
|
1727 |
} else { |
|
1728 |
/* remove from snapshot namespace */ |
|
1729 |
dsl_dataset_t *ds_head; |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1730 |
ASSERT(ds->ds_phys->ds_snapnames_zapobj == 0); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1731 |
VERIFY(0 == dsl_dataset_hold_obj(dp, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1732 |
ds->ds_dir->dd_phys->dd_head_dataset_obj, FTAG, &ds_head)); |
2207
47efcb3433a7
6439370 assertion failures possible in dsl_dataset_destroy_sync()
ahrens
parents:
2199
diff
changeset
|
1733 |
VERIFY(0 == dsl_dataset_get_snapname(ds)); |
789 | 1734 |
#ifdef ZFS_DEBUG |
1735 |
{ |
|
1736 |
uint64_t val; |
|
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
1737 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1738 |
err = dsl_dataset_snap_lookup(ds_head, |
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
1739 |
ds->ds_snapname, &val); |
789 | 1740 |
ASSERT3U(err, ==, 0); |
1741 |
ASSERT3U(val, ==, obj); |
|
1742 |
} |
|
1743 |
#endif |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1744 |
err = dsl_dataset_snap_remove(ds_head, ds->ds_snapname, tx); |
789 | 1745 |
ASSERT(err == 0); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1746 |
dsl_dataset_rele(ds_head, FTAG); |
789 | 1747 |
} |
1748 |
||
1749 |
if (ds_prev && ds->ds_prev != ds_prev) |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1750 |
dsl_dataset_rele(ds_prev, FTAG); |
789 | 1751 |
|
5094 | 1752 |
spa_prop_clear_bootfs(dp->dp_spa, ds->ds_object, tx); |
4543 | 1753 |
spa_history_internal_log(LOG_DS_DESTROY, dp->dp_spa, tx, |
1754 |
cr, "dataset = %llu", ds->ds_object); |
|
1755 |
||
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1756 |
if (ds->ds_phys->ds_next_clones_obj != 0) { |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1757 |
uint64_t count; |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1758 |
ASSERT(0 == zap_count(mos, |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1759 |
ds->ds_phys->ds_next_clones_obj, &count) && count == 0); |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1760 |
VERIFY(0 == dmu_object_free(mos, |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1761 |
ds->ds_phys->ds_next_clones_obj, tx)); |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1762 |
} |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1763 |
if (ds->ds_phys->ds_props_obj != 0) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1764 |
VERIFY(0 == zap_destroy(mos, ds->ds_phys->ds_props_obj, tx)); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1765 |
if (ds->ds_phys->ds_userrefs_obj != 0) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1766 |
VERIFY(0 == zap_destroy(mos, ds->ds_phys->ds_userrefs_obj, tx)); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1767 |
dsl_dir_close(ds->ds_dir, ds); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1768 |
ds->ds_dir = NULL; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1769 |
dsl_dataset_drain_refs(ds, tag); |
2199 | 1770 |
VERIFY(0 == dmu_object_free(mos, obj, tx)); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1771 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1772 |
if (dsda->rm_origin) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1773 |
/* |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1774 |
* Remove the origin of the clone we just destroyed. |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1775 |
*/ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1776 |
struct dsl_ds_destroyarg ndsda = {0}; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1777 |
|
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
1778 |
ndsda.ds = dsda->rm_origin; |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1779 |
dsl_dataset_destroy_sync(&ndsda, tag, cr, tx); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1780 |
} |
2199 | 1781 |
} |
1782 |
||
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1783 |
static int |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1784 |
dsl_dataset_snapshot_reserve_space(dsl_dataset_t *ds, dmu_tx_t *tx) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1785 |
{ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1786 |
uint64_t asize; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1787 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1788 |
if (!dmu_tx_is_syncing(tx)) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1789 |
return (0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1790 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1791 |
/* |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1792 |
* If there's an fs-only reservation, any blocks that might become |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1793 |
* owned by the snapshot dataset must be accommodated by space |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1794 |
* outside of the reservation. |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1795 |
*/ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1796 |
asize = MIN(dsl_dataset_unique(ds), ds->ds_reserved); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1797 |
if (asize > dsl_dir_space_available(ds->ds_dir, NULL, 0, FALSE)) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1798 |
return (ENOSPC); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1799 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1800 |
/* |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1801 |
* Propogate any reserved space for this snapshot to other |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1802 |
* snapshot checks in this sync group. |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1803 |
*/ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1804 |
if (asize > 0) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1805 |
dsl_dir_willuse_space(ds->ds_dir, asize, tx); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1806 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1807 |
return (0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1808 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1809 |
|
2199 | 1810 |
/* ARGSUSED */ |
1811 |
int |
|
1812 |
dsl_dataset_snapshot_check(void *arg1, void *arg2, dmu_tx_t *tx) |
|
1813 |
{ |
|
5367 | 1814 |
dsl_dataset_t *ds = arg1; |
2199 | 1815 |
const char *snapname = arg2; |
1816 |
int err; |
|
1817 |
uint64_t value; |
|
789 | 1818 |
|
1819 |
/* |
|
2199 | 1820 |
* We don't allow multiple snapshots of the same txg. If there |
1821 |
* is already one, try again. |
|
1822 |
*/ |
|
1823 |
if (ds->ds_phys->ds_prev_snap_txg >= tx->tx_txg) |
|
1824 |
return (EAGAIN); |
|
1825 |
||
1826 |
/* |
|
1827 |
* Check for conflicting name snapshot name. |
|
789 | 1828 |
*/ |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1829 |
err = dsl_dataset_snap_lookup(ds, snapname, &value); |
2199 | 1830 |
if (err == 0) |
1831 |
return (EEXIST); |
|
1832 |
if (err != ENOENT) |
|
1833 |
return (err); |
|
789 | 1834 |
|
3978
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
1835 |
/* |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
1836 |
* Check that the dataset's name is not too long. Name consists |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
1837 |
* of the dataset's length + 1 for the @-sign + snapshot name's length |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
1838 |
*/ |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
1839 |
if (dsl_dataset_namelen(ds) + 1 + strlen(snapname) >= MAXNAMELEN) |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
1840 |
return (ENAMETOOLONG); |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
1841 |
|
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1842 |
err = dsl_dataset_snapshot_reserve_space(ds, tx); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1843 |
if (err) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1844 |
return (err); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
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diff
changeset
|
1845 |
|
2199 | 1846 |
ds->ds_trysnap_txg = tx->tx_txg; |
789 | 1847 |
return (0); |
1848 |
} |
|
1849 |
||
2199 | 1850 |
void |
4543 | 1851 |
dsl_dataset_snapshot_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) |
789 | 1852 |
{ |
5367 | 1853 |
dsl_dataset_t *ds = arg1; |
2199 | 1854 |
const char *snapname = arg2; |
1855 |
dsl_pool_t *dp = ds->ds_dir->dd_pool; |
|
789 | 1856 |
dmu_buf_t *dbuf; |
1857 |
dsl_dataset_phys_t *dsphys; |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1858 |
uint64_t dsobj, crtxg; |
789 | 1859 |
objset_t *mos = dp->dp_meta_objset; |
1860 |
int err; |
|
1861 |
||
2199 | 1862 |
ASSERT(RW_WRITE_HELD(&dp->dp_config_rwlock)); |
789 | 1863 |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1864 |
/* |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1865 |
* The origin's ds_creation_txg has to be < TXG_INITIAL |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1866 |
*/ |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1867 |
if (strcmp(snapname, ORIGIN_DIR_NAME) == 0) |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1868 |
crtxg = 1; |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1869 |
else |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1870 |
crtxg = tx->tx_txg; |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1871 |
|
928
36d72fe4da29
6349314 dmu_object_type names incorrect for DSL Directories and DSL Datasets
tabriz
parents:
885
diff
changeset
|
1872 |
dsobj = dmu_object_alloc(mos, DMU_OT_DSL_DATASET, 0, |
36d72fe4da29
6349314 dmu_object_type names incorrect for DSL Directories and DSL Datasets
tabriz
parents:
885
diff
changeset
|
1873 |
DMU_OT_DSL_DATASET, sizeof (dsl_dataset_phys_t), tx); |
1544 | 1874 |
VERIFY(0 == dmu_bonus_hold(mos, dsobj, FTAG, &dbuf)); |
789 | 1875 |
dmu_buf_will_dirty(dbuf, tx); |
1876 |
dsphys = dbuf->db_data; |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1877 |
bzero(dsphys, sizeof (dsl_dataset_phys_t)); |
2199 | 1878 |
dsphys->ds_dir_obj = ds->ds_dir->dd_object; |
789 | 1879 |
dsphys->ds_fsid_guid = unique_create(); |
1880 |
(void) random_get_pseudo_bytes((void*)&dsphys->ds_guid, |
|
1881 |
sizeof (dsphys->ds_guid)); |
|
1882 |
dsphys->ds_prev_snap_obj = ds->ds_phys->ds_prev_snap_obj; |
|
1883 |
dsphys->ds_prev_snap_txg = ds->ds_phys->ds_prev_snap_txg; |
|
1884 |
dsphys->ds_next_snap_obj = ds->ds_object; |
|
1885 |
dsphys->ds_num_children = 1; |
|
1886 |
dsphys->ds_creation_time = gethrestime_sec(); |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1887 |
dsphys->ds_creation_txg = crtxg; |
789 | 1888 |
dsphys->ds_deadlist_obj = ds->ds_phys->ds_deadlist_obj; |
1889 |
dsphys->ds_used_bytes = ds->ds_phys->ds_used_bytes; |
|
1890 |
dsphys->ds_compressed_bytes = ds->ds_phys->ds_compressed_bytes; |
|
1891 |
dsphys->ds_uncompressed_bytes = ds->ds_phys->ds_uncompressed_bytes; |
|
2082 | 1892 |
dsphys->ds_flags = ds->ds_phys->ds_flags; |
789 | 1893 |
dsphys->ds_bp = ds->ds_phys->ds_bp; |
1544 | 1894 |
dmu_buf_rele(dbuf, FTAG); |
789 | 1895 |
|
2199 | 1896 |
ASSERT3U(ds->ds_prev != 0, ==, ds->ds_phys->ds_prev_snap_obj != 0); |
1897 |
if (ds->ds_prev) { |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1898 |
uint64_t next_clones_obj = |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1899 |
ds->ds_prev->ds_phys->ds_next_clones_obj; |
2199 | 1900 |
ASSERT(ds->ds_prev->ds_phys->ds_next_snap_obj == |
789 | 1901 |
ds->ds_object || |
2199 | 1902 |
ds->ds_prev->ds_phys->ds_num_children > 1); |
1903 |
if (ds->ds_prev->ds_phys->ds_next_snap_obj == ds->ds_object) { |
|
1904 |
dmu_buf_will_dirty(ds->ds_prev->ds_dbuf, tx); |
|
789 | 1905 |
ASSERT3U(ds->ds_phys->ds_prev_snap_txg, ==, |
2199 | 1906 |
ds->ds_prev->ds_phys->ds_creation_txg); |
1907 |
ds->ds_prev->ds_phys->ds_next_snap_obj = dsobj; |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1908 |
} else if (next_clones_obj != 0) { |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1909 |
VERIFY3U(0, ==, zap_remove_int(mos, |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1910 |
next_clones_obj, dsphys->ds_next_snap_obj, tx)); |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1911 |
VERIFY3U(0, ==, zap_add_int(mos, |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1912 |
next_clones_obj, dsobj, tx)); |
789 | 1913 |
} |
1914 |
} |
|
1915 |
||
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1916 |
/* |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1917 |
* If we have a reference-reservation on this dataset, we will |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1918 |
* need to increase the amount of refreservation being charged |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1919 |
* since our unique space is going to zero. |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1920 |
*/ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1921 |
if (ds->ds_reserved) { |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1922 |
int64_t add = MIN(dsl_dataset_unique(ds), ds->ds_reserved); |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1923 |
dsl_dir_diduse_space(ds->ds_dir, DD_USED_REFRSRV, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1924 |
add, 0, 0, tx); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1925 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1926 |
|
789 | 1927 |
bplist_close(&ds->ds_deadlist); |
1928 |
dmu_buf_will_dirty(ds->ds_dbuf, tx); |
|
5712
81f1af42bafc
6628232 zfs snapshot -r is very slow, causes systemic slowdown
ahrens
parents:
5569
diff
changeset
|
1929 |
ASSERT3U(ds->ds_phys->ds_prev_snap_txg, <, tx->tx_txg); |
789 | 1930 |
ds->ds_phys->ds_prev_snap_obj = dsobj; |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1931 |
ds->ds_phys->ds_prev_snap_txg = crtxg; |
789 | 1932 |
ds->ds_phys->ds_unique_bytes = 0; |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1933 |
if (spa_version(dp->dp_spa) >= SPA_VERSION_UNIQUE_ACCURATE) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1934 |
ds->ds_phys->ds_flags |= DS_FLAG_UNIQUE_ACCURATE; |
789 | 1935 |
ds->ds_phys->ds_deadlist_obj = |
1936 |
bplist_create(mos, DSL_DEADLIST_BLOCKSIZE, tx); |
|
1544 | 1937 |
VERIFY(0 == bplist_open(&ds->ds_deadlist, mos, |
1938 |
ds->ds_phys->ds_deadlist_obj)); |
|
789 | 1939 |
|
1940 |
dprintf("snap '%s' -> obj %llu\n", snapname, dsobj); |
|
1941 |
err = zap_add(mos, ds->ds_phys->ds_snapnames_zapobj, |
|
1942 |
snapname, 8, 1, &dsobj, tx); |
|
1943 |
ASSERT(err == 0); |
|
1944 |
||
1945 |
if (ds->ds_prev) |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1946 |
dsl_dataset_drop_ref(ds->ds_prev, ds); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1947 |
VERIFY(0 == dsl_dataset_get_ref(dp, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1948 |
ds->ds_phys->ds_prev_snap_obj, ds, &ds->ds_prev)); |
4543 | 1949 |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1950 |
dsl_pool_ds_snapshotted(ds, tx); |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1951 |
|
10373
bcf97ee54990
6395956 snapshot dir needs real c/mtime
Chris Kirby <chris.kirby@sun.com>
parents:
10342
diff
changeset
|
1952 |
dsl_dir_snap_cmtime_update(ds->ds_dir); |
bcf97ee54990
6395956 snapshot dir needs real c/mtime
Chris Kirby <chris.kirby@sun.com>
parents:
10342
diff
changeset
|
1953 |
|
4543 | 1954 |
spa_history_internal_log(LOG_DS_SNAPSHOT, dp->dp_spa, tx, cr, |
4603
c7840c367d00
6494569 zfs recv -d pool/<doesn't exist> core dumps for top-level filesystem backups
ahrens
parents:
4577
diff
changeset
|
1955 |
"dataset = %llu", dsobj); |
789 | 1956 |
} |
1957 |
||
1958 |
void |
|
3547
e396e0a440b1
6512391 DMU should leverage ZIO dependencies to achieve greater parallelism
maybee
parents:
3444
diff
changeset
|
1959 |
dsl_dataset_sync(dsl_dataset_t *ds, zio_t *zio, dmu_tx_t *tx) |
789 | 1960 |
{ |
1961 |
ASSERT(dmu_tx_is_syncing(tx)); |
|
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
1962 |
ASSERT(ds->ds_objset != NULL); |
789 | 1963 |
ASSERT(ds->ds_phys->ds_next_snap_obj == 0); |
1964 |
||
4787 | 1965 |
/* |
1966 |
* in case we had to change ds_fsid_guid when we opened it, |
|
1967 |
* sync it out now. |
|
1968 |
*/ |
|
1969 |
dmu_buf_will_dirty(ds->ds_dbuf, tx); |
|
1970 |
ds->ds_phys->ds_fsid_guid = ds->ds_fsid_guid; |
|
1971 |
||
789 | 1972 |
dsl_dir_dirty(ds->ds_dir, tx); |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
1973 |
dmu_objset_sync(ds->ds_objset, zio, tx); |
789 | 1974 |
} |
1975 |
||
1976 |
void |
|
2885 | 1977 |
dsl_dataset_stats(dsl_dataset_t *ds, nvlist_t *nv) |
789 | 1978 |
{ |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1979 |
uint64_t refd, avail, uobjs, aobjs; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1980 |
|
2885 | 1981 |
dsl_dir_stats(ds->ds_dir, nv); |
789 | 1982 |
|
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1983 |
dsl_dataset_space(ds, &refd, &avail, &uobjs, &aobjs); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1984 |
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_AVAILABLE, avail); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1985 |
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_REFERENCED, refd); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1986 |
|
2885 | 1987 |
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_CREATION, |
1988 |
ds->ds_phys->ds_creation_time); |
|
1989 |
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_CREATETXG, |
|
1990 |
ds->ds_phys->ds_creation_txg); |
|
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1991 |
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_REFQUOTA, |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1992 |
ds->ds_quota); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1993 |
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_REFRESERVATION, |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1994 |
ds->ds_reserved); |
6643
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6502
diff
changeset
|
1995 |
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_GUID, |
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6502
diff
changeset
|
1996 |
ds->ds_phys->ds_guid); |
10575
2a8816c5173b
6882196 resource.* events shouldn't be posted during spa_tryimport()
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
10385
diff
changeset
|
1997 |
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_UNIQUE, |
2a8816c5173b
6882196 resource.* events shouldn't be posted during spa_tryimport()
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
10385
diff
changeset
|
1998 |
dsl_dataset_unique(ds)); |
2a8816c5173b
6882196 resource.* events shouldn't be posted during spa_tryimport()
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
10385
diff
changeset
|
1999 |
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_OBJSETID, |
2a8816c5173b
6882196 resource.* events shouldn't be posted during spa_tryimport()
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
10385
diff
changeset
|
2000 |
ds->ds_object); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
2001 |
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_USERREFS, ds->ds_userrefs); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
2002 |
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_DEFER_DESTROY, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
2003 |
DS_IS_DEFER_DESTROY(ds) ? 1 : 0); |
789 | 2004 |
|
2005 |
if (ds->ds_phys->ds_next_snap_obj) { |
|
2006 |
/* |
|
2007 |
* This is a snapshot; override the dd's space used with |
|
2885 | 2008 |
* our unique space and compression ratio. |
789 | 2009 |
*/ |
2885 | 2010 |
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_USED, |
2011 |
ds->ds_phys->ds_unique_bytes); |
|
2012 |
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_COMPRESSRATIO, |
|
2013 |
ds->ds_phys->ds_compressed_bytes == 0 ? 100 : |
|
2014 |
(ds->ds_phys->ds_uncompressed_bytes * 100 / |
|
2015 |
ds->ds_phys->ds_compressed_bytes)); |
|
789 | 2016 |
} |
2017 |
} |
|
2018 |
||
2885 | 2019 |
void |
2020 |
dsl_dataset_fast_stat(dsl_dataset_t *ds, dmu_objset_stats_t *stat) |
|
789 | 2021 |
{ |
2885 | 2022 |
stat->dds_creation_txg = ds->ds_phys->ds_creation_txg; |
2023 |
stat->dds_inconsistent = ds->ds_phys->ds_flags & DS_FLAG_INCONSISTENT; |
|
5367 | 2024 |
stat->dds_guid = ds->ds_phys->ds_guid; |
2885 | 2025 |
if (ds->ds_phys->ds_next_snap_obj) { |
2026 |
stat->dds_is_snapshot = B_TRUE; |
|
2027 |
stat->dds_num_clones = ds->ds_phys->ds_num_children - 1; |
|
8228
51e9ca9ee3a5
6572357 libzfs should do more to avoid mnttab lookups
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
7837
diff
changeset
|
2028 |
} else { |
51e9ca9ee3a5
6572357 libzfs should do more to avoid mnttab lookups
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
7837
diff
changeset
|
2029 |
stat->dds_is_snapshot = B_FALSE; |
51e9ca9ee3a5
6572357 libzfs should do more to avoid mnttab lookups
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
7837
diff
changeset
|
2030 |
stat->dds_num_clones = 0; |
2885 | 2031 |
} |
2032 |
||
2033 |
/* clone origin is really a dsl_dir thing... */ |
|
5446 | 2034 |
rw_enter(&ds->ds_dir->dd_pool->dp_config_rwlock, RW_READER); |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2035 |
if (dsl_dir_is_clone(ds->ds_dir)) { |
2885 | 2036 |
dsl_dataset_t *ods; |
2037 |
||
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2038 |
VERIFY(0 == dsl_dataset_get_ref(ds->ds_dir->dd_pool, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2039 |
ds->ds_dir->dd_phys->dd_origin_obj, FTAG, &ods)); |
5367 | 2040 |
dsl_dataset_name(ods, stat->dds_origin); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2041 |
dsl_dataset_drop_ref(ods, FTAG); |
8228
51e9ca9ee3a5
6572357 libzfs should do more to avoid mnttab lookups
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
7837
diff
changeset
|
2042 |
} else { |
51e9ca9ee3a5
6572357 libzfs should do more to avoid mnttab lookups
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
7837
diff
changeset
|
2043 |
stat->dds_origin[0] = '\0'; |
2885 | 2044 |
} |
5446 | 2045 |
rw_exit(&ds->ds_dir->dd_pool->dp_config_rwlock); |
2885 | 2046 |
} |
2047 |
||
2048 |
uint64_t |
|
2049 |
dsl_dataset_fsid_guid(dsl_dataset_t *ds) |
|
2050 |
{ |
|
4787 | 2051 |
return (ds->ds_fsid_guid); |
2885 | 2052 |
} |
2053 |
||
2054 |
void |
|
2055 |
dsl_dataset_space(dsl_dataset_t *ds, |
|
2056 |
uint64_t *refdbytesp, uint64_t *availbytesp, |
|
2057 |
uint64_t *usedobjsp, uint64_t *availobjsp) |
|
2058 |
{ |
|
2059 |
*refdbytesp = ds->ds_phys->ds_used_bytes; |
|
2060 |
*availbytesp = dsl_dir_space_available(ds->ds_dir, NULL, 0, TRUE); |
|
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2061 |
if (ds->ds_reserved > ds->ds_phys->ds_unique_bytes) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2062 |
*availbytesp += ds->ds_reserved - ds->ds_phys->ds_unique_bytes; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2063 |
if (ds->ds_quota != 0) { |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2064 |
/* |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2065 |
* Adjust available bytes according to refquota |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2066 |
*/ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2067 |
if (*refdbytesp < ds->ds_quota) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2068 |
*availbytesp = MIN(*availbytesp, |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2069 |
ds->ds_quota - *refdbytesp); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2070 |
else |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2071 |
*availbytesp = 0; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2072 |
} |
2885 | 2073 |
*usedobjsp = ds->ds_phys->ds_bp.blk_fill; |
2074 |
*availobjsp = DN_MAX_OBJECT - *usedobjsp; |
|
789 | 2075 |
} |
2076 |
||
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2077 |
boolean_t |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2078 |
dsl_dataset_modified_since_lastsnap(dsl_dataset_t *ds) |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2079 |
{ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2080 |
dsl_pool_t *dp = ds->ds_dir->dd_pool; |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2081 |
|
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2082 |
ASSERT(RW_LOCK_HELD(&dp->dp_config_rwlock) || |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2083 |
dsl_pool_sync_context(dp)); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2084 |
if (ds->ds_prev == NULL) |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2085 |
return (B_FALSE); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2086 |
if (ds->ds_phys->ds_bp.blk_birth > |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2087 |
ds->ds_prev->ds_phys->ds_creation_txg) |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2088 |
return (B_TRUE); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2089 |
return (B_FALSE); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2090 |
} |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2091 |
|
2199 | 2092 |
/* ARGSUSED */ |
789 | 2093 |
static int |
2199 | 2094 |
dsl_dataset_snapshot_rename_check(void *arg1, void *arg2, dmu_tx_t *tx) |
789 | 2095 |
{ |
2199 | 2096 |
dsl_dataset_t *ds = arg1; |
2097 |
char *newsnapname = arg2; |
|
2098 |
dsl_dir_t *dd = ds->ds_dir; |
|
2099 |
dsl_dataset_t *hds; |
|
2100 |
uint64_t val; |
|
789 | 2101 |
int err; |
2102 |
||
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2103 |
err = dsl_dataset_hold_obj(dd->dd_pool, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2104 |
dd->dd_phys->dd_head_dataset_obj, FTAG, &hds); |
789 | 2105 |
if (err) |
2106 |
return (err); |
|
2107 |
||
2199 | 2108 |
/* new name better not be in use */ |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2109 |
err = dsl_dataset_snap_lookup(hds, newsnapname, &val); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2110 |
dsl_dataset_rele(hds, FTAG); |
789 | 2111 |
|
2199 | 2112 |
if (err == 0) |
2113 |
err = EEXIST; |
|
2114 |
else if (err == ENOENT) |
|
2115 |
err = 0; |
|
4007 | 2116 |
|
2117 |
/* dataset name + 1 for the "@" + the new snapshot name must fit */ |
|
2118 |
if (dsl_dir_namelen(ds->ds_dir) + 1 + strlen(newsnapname) >= MAXNAMELEN) |
|
2119 |
err = ENAMETOOLONG; |
|
2120 |
||
2199 | 2121 |
return (err); |
2122 |
} |
|
789 | 2123 |
|
2199 | 2124 |
static void |
4543 | 2125 |
dsl_dataset_snapshot_rename_sync(void *arg1, void *arg2, |
2126 |
cred_t *cr, dmu_tx_t *tx) |
|
2199 | 2127 |
{ |
2128 |
dsl_dataset_t *ds = arg1; |
|
4543 | 2129 |
const char *newsnapname = arg2; |
2199 | 2130 |
dsl_dir_t *dd = ds->ds_dir; |
2131 |
objset_t *mos = dd->dd_pool->dp_meta_objset; |
|
2132 |
dsl_dataset_t *hds; |
|
2133 |
int err; |
|
789 | 2134 |
|
2199 | 2135 |
ASSERT(ds->ds_phys->ds_next_snap_obj != 0); |
789 | 2136 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2137 |
VERIFY(0 == dsl_dataset_hold_obj(dd->dd_pool, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2138 |
dd->dd_phys->dd_head_dataset_obj, FTAG, &hds)); |
789 | 2139 |
|
2199 | 2140 |
VERIFY(0 == dsl_dataset_get_snapname(ds)); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2141 |
err = dsl_dataset_snap_remove(hds, ds->ds_snapname, tx); |
789 | 2142 |
ASSERT3U(err, ==, 0); |
2199 | 2143 |
mutex_enter(&ds->ds_lock); |
2144 |
(void) strcpy(ds->ds_snapname, newsnapname); |
|
2145 |
mutex_exit(&ds->ds_lock); |
|
2146 |
err = zap_add(mos, hds->ds_phys->ds_snapnames_zapobj, |
|
2147 |
ds->ds_snapname, 8, 1, &ds->ds_object, tx); |
|
789 | 2148 |
ASSERT3U(err, ==, 0); |
2149 |
||
4543 | 2150 |
spa_history_internal_log(LOG_DS_RENAME, dd->dd_pool->dp_spa, tx, |
2151 |
cr, "dataset = %llu", ds->ds_object); |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2152 |
dsl_dataset_rele(hds, FTAG); |
789 | 2153 |
} |
2154 |
||
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2155 |
struct renamesnaparg { |
4007 | 2156 |
dsl_sync_task_group_t *dstg; |
2157 |
char failed[MAXPATHLEN]; |
|
2158 |
char *oldsnap; |
|
2159 |
char *newsnap; |
|
2160 |
}; |
|
2161 |
||
2162 |
static int |
|
2163 |
dsl_snapshot_rename_one(char *name, void *arg) |
|
2164 |
{ |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2165 |
struct renamesnaparg *ra = arg; |
4007 | 2166 |
dsl_dataset_t *ds = NULL; |
2167 |
char *cp; |
|
2168 |
int err; |
|
2169 |
||
2170 |
cp = name + strlen(name); |
|
2171 |
*cp = '@'; |
|
2172 |
(void) strcpy(cp + 1, ra->oldsnap); |
|
4543 | 2173 |
|
2174 |
/* |
|
2175 |
* For recursive snapshot renames the parent won't be changing |
|
2176 |
* so we just pass name for both the to/from argument. |
|
2177 |
*/ |
|
7312
3992f9a413c2
6736061 recursive rename of snapshot fails if child snapshot doesn't exist
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7265
diff
changeset
|
2178 |
err = zfs_secpolicy_rename_perms(name, name, CRED()); |
3992f9a413c2
6736061 recursive rename of snapshot fails if child snapshot doesn't exist
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7265
diff
changeset
|
2179 |
if (err == ENOENT) { |
3992f9a413c2
6736061 recursive rename of snapshot fails if child snapshot doesn't exist
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7265
diff
changeset
|
2180 |
return (0); |
3992f9a413c2
6736061 recursive rename of snapshot fails if child snapshot doesn't exist
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7265
diff
changeset
|
2181 |
} else if (err) { |
4543 | 2182 |
(void) strcpy(ra->failed, name); |
2183 |
return (err); |
|
2184 |
} |
|
2185 |
||
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2186 |
#ifdef _KERNEL |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2187 |
/* |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2188 |
* For all filesystems undergoing rename, we'll need to unmount it. |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2189 |
*/ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2190 |
(void) zfs_unmount_snap(name, NULL); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2191 |
#endif |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2192 |
err = dsl_dataset_hold(name, ra->dstg, &ds); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2193 |
*cp = '\0'; |
4007 | 2194 |
if (err == ENOENT) { |
2195 |
return (0); |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2196 |
} else if (err) { |
4007 | 2197 |
(void) strcpy(ra->failed, name); |
2198 |
return (err); |
|
2199 |
} |
|
2200 |
||
2201 |
dsl_sync_task_create(ra->dstg, dsl_dataset_snapshot_rename_check, |
|
2202 |
dsl_dataset_snapshot_rename_sync, ds, ra->newsnap, 0); |
|
2203 |
||
2204 |
return (0); |
|
2205 |
} |
|
2206 |
||
2207 |
static int |
|
2208 |
dsl_recursive_rename(char *oldname, const char *newname) |
|
2209 |
{ |
|
2210 |
int err; |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2211 |
struct renamesnaparg *ra; |
4007 | 2212 |
dsl_sync_task_t *dst; |
2213 |
spa_t *spa; |
|
2214 |
char *cp, *fsname = spa_strdup(oldname); |
|
2215 |
int len = strlen(oldname); |
|
2216 |
||
2217 |
/* truncate the snapshot name to get the fsname */ |
|
2218 |
cp = strchr(fsname, '@'); |
|
2219 |
*cp = '\0'; |
|
2220 |
||
4603
c7840c367d00
6494569 zfs recv -d pool/<doesn't exist> core dumps for top-level filesystem backups
ahrens
parents:
4577
diff
changeset
|
2221 |
err = spa_open(fsname, &spa, FTAG); |
4007 | 2222 |
if (err) { |
2223 |
kmem_free(fsname, len + 1); |
|
2224 |
return (err); |
|
2225 |
} |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2226 |
ra = kmem_alloc(sizeof (struct renamesnaparg), KM_SLEEP); |
4007 | 2227 |
ra->dstg = dsl_sync_task_group_create(spa_get_dsl(spa)); |
2228 |
||
2229 |
ra->oldsnap = strchr(oldname, '@') + 1; |
|
2230 |
ra->newsnap = strchr(newname, '@') + 1; |
|
2231 |
*ra->failed = '\0'; |
|
2232 |
||
2233 |
err = dmu_objset_find(fsname, dsl_snapshot_rename_one, ra, |
|
2234 |
DS_FIND_CHILDREN); |
|
2235 |
kmem_free(fsname, len + 1); |
|
2236 |
||
2237 |
if (err == 0) { |
|
2238 |
err = dsl_sync_task_group_wait(ra->dstg); |
|
2239 |
} |
|
2240 |
||
2241 |
for (dst = list_head(&ra->dstg->dstg_tasks); dst; |
|
2242 |
dst = list_next(&ra->dstg->dstg_tasks, dst)) { |
|
2243 |
dsl_dataset_t *ds = dst->dst_arg1; |
|
2244 |
if (dst->dst_err) { |
|
2245 |
dsl_dir_name(ds->ds_dir, ra->failed); |
|
4009
1a9b4fbc0d2a
6479884 want 'zfs rename -r' to recursively rename snapshots (fix lint)
mmusante
parents:
4007
diff
changeset
|
2246 |
(void) strcat(ra->failed, "@"); |
1a9b4fbc0d2a
6479884 want 'zfs rename -r' to recursively rename snapshots (fix lint)
mmusante
parents:
4007
diff
changeset
|
2247 |
(void) strcat(ra->failed, ra->newsnap); |
4007 | 2248 |
} |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2249 |
dsl_dataset_rele(ds, ra->dstg); |
4007 | 2250 |
} |
2251 |
||
4543 | 2252 |
if (err) |
2253 |
(void) strcpy(oldname, ra->failed); |
|
4007 | 2254 |
|
2255 |
dsl_sync_task_group_destroy(ra->dstg); |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2256 |
kmem_free(ra, sizeof (struct renamesnaparg)); |
4007 | 2257 |
spa_close(spa, FTAG); |
2258 |
return (err); |
|
2259 |
} |
|
2260 |
||
4569
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2261 |
static int |
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2262 |
dsl_valid_rename(char *oldname, void *arg) |
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2263 |
{ |
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2264 |
int delta = *(int *)arg; |
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2265 |
|
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2266 |
if (strlen(oldname) + delta >= MAXNAMELEN) |
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2267 |
return (ENAMETOOLONG); |
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2268 |
|
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2269 |
return (0); |
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2270 |
} |
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2271 |
|
789 | 2272 |
#pragma weak dmu_objset_rename = dsl_dataset_rename |
2273 |
int |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2274 |
dsl_dataset_rename(char *oldname, const char *newname, boolean_t recursive) |
789 | 2275 |
{ |
2276 |
dsl_dir_t *dd; |
|
2199 | 2277 |
dsl_dataset_t *ds; |
789 | 2278 |
const char *tail; |
2279 |
int err; |
|
2280 |
||
2199 | 2281 |
err = dsl_dir_open(oldname, FTAG, &dd, &tail); |
1544 | 2282 |
if (err) |
2283 |
return (err); |
|
8517
41a0783dde17
6784757 zfs rename occasionally fails with ebusy
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
8228
diff
changeset
|
2284 |
/* |
41a0783dde17
6784757 zfs rename occasionally fails with ebusy
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
8228
diff
changeset
|
2285 |
* If there are more than 2 references there may be holds |
41a0783dde17
6784757 zfs rename occasionally fails with ebusy
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
8228
diff
changeset
|
2286 |
* hanging around that haven't been cleared out yet. |
41a0783dde17
6784757 zfs rename occasionally fails with ebusy
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
8228
diff
changeset
|
2287 |
*/ |
41a0783dde17
6784757 zfs rename occasionally fails with ebusy
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
8228
diff
changeset
|
2288 |
if (dmu_buf_refcount(dd->dd_dbuf) > 2) |
41a0783dde17
6784757 zfs rename occasionally fails with ebusy
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
8228
diff
changeset
|
2289 |
txg_wait_synced(dd->dd_pool, 0); |
789 | 2290 |
if (tail == NULL) { |
4569
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2291 |
int delta = strlen(newname) - strlen(oldname); |
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2292 |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2293 |
/* if we're growing, validate child name lengths */ |
4569
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2294 |
if (delta > 0) |
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2295 |
err = dmu_objset_find(oldname, dsl_valid_rename, |
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2296 |
&delta, DS_FIND_CHILDREN | DS_FIND_SNAPSHOTS); |
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2297 |
|
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2298 |
if (!err) |
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2299 |
err = dsl_dir_rename(dd, newname); |
789 | 2300 |
dsl_dir_close(dd, FTAG); |
2301 |
return (err); |
|
2302 |
} |
|
2303 |
if (tail[0] != '@') { |
|
10588
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2304 |
/* the name ended in a nonexistent component */ |
789 | 2305 |
dsl_dir_close(dd, FTAG); |
2306 |
return (ENOENT); |
|
2307 |
} |
|
2308 |
||
2199 | 2309 |
dsl_dir_close(dd, FTAG); |
2310 |
||
2311 |
/* new name must be snapshot in same filesystem */ |
|
2312 |
tail = strchr(newname, '@'); |
|
2313 |
if (tail == NULL) |
|
2314 |
return (EINVAL); |
|
2315 |
tail++; |
|
2316 |
if (strncmp(oldname, newname, tail - newname) != 0) |
|
2317 |
return (EXDEV); |
|
789 | 2318 |
|
4007 | 2319 |
if (recursive) { |
2320 |
err = dsl_recursive_rename(oldname, newname); |
|
2321 |
} else { |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2322 |
err = dsl_dataset_hold(oldname, FTAG, &ds); |
4007 | 2323 |
if (err) |
2324 |
return (err); |
|
2199 | 2325 |
|
4007 | 2326 |
err = dsl_sync_task_do(ds->ds_dir->dd_pool, |
2327 |
dsl_dataset_snapshot_rename_check, |
|
2328 |
dsl_dataset_snapshot_rename_sync, ds, (char *)tail, 1); |
|
2199 | 2329 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2330 |
dsl_dataset_rele(ds, FTAG); |
4007 | 2331 |
} |
2199 | 2332 |
|
789 | 2333 |
return (err); |
2334 |
} |
|
2082 | 2335 |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2336 |
struct promotenode { |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2337 |
list_node_t link; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2338 |
dsl_dataset_t *ds; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2339 |
}; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2340 |
|
2199 | 2341 |
struct promotearg { |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2342 |
list_t shared_snaps, origin_snaps, clone_snaps; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2343 |
dsl_dataset_t *origin_origin, *origin_head; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2344 |
uint64_t used, comp, uncomp, unique, cloneusedsnap, originusedsnap; |
10588
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2345 |
char *err_ds; |
2199 | 2346 |
}; |
2347 |
||
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2348 |
static int snaplist_space(list_t *l, uint64_t mintxg, uint64_t *spacep); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2349 |
|
4543 | 2350 |
/* ARGSUSED */ |
2082 | 2351 |
static int |
2199 | 2352 |
dsl_dataset_promote_check(void *arg1, void *arg2, dmu_tx_t *tx) |
2082 | 2353 |
{ |
2199 | 2354 |
dsl_dataset_t *hds = arg1; |
2355 |
struct promotearg *pa = arg2; |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2356 |
struct promotenode *snap = list_head(&pa->shared_snaps); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2357 |
dsl_dataset_t *origin_ds = snap->ds; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2358 |
int err; |
2199 | 2359 |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2360 |
/* Check that it is a real clone */ |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2361 |
if (!dsl_dir_is_clone(hds->ds_dir)) |
2082 | 2362 |
return (EINVAL); |
2363 |
||
2199 | 2364 |
/* Since this is so expensive, don't do the preliminary check */ |
2365 |
if (!dmu_tx_is_syncing(tx)) |
|
2366 |
return (0); |
|
2367 |
||
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2368 |
if (hds->ds_phys->ds_flags & DS_FLAG_NOPROMOTE) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2369 |
return (EXDEV); |
2082 | 2370 |
|
5367 | 2371 |
/* compute origin's new unique space */ |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2372 |
snap = list_tail(&pa->clone_snaps); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2373 |
ASSERT3U(snap->ds->ds_phys->ds_prev_snap_obj, ==, origin_ds->ds_object); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2374 |
err = bplist_space_birthrange(&snap->ds->ds_deadlist, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2375 |
origin_ds->ds_phys->ds_prev_snap_txg, UINT64_MAX, &pa->unique); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2376 |
if (err) |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2377 |
return (err); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2378 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2379 |
/* |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2380 |
* Walk the snapshots that we are moving |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2381 |
* |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2382 |
* Compute space to transfer. Consider the incremental changes |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2383 |
* to used for each snapshot: |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2384 |
* (my used) = (prev's used) + (blocks born) - (blocks killed) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2385 |
* So each snapshot gave birth to: |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2386 |
* (blocks born) = (my used) - (prev's used) + (blocks killed) |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2387 |
* So a sequence would look like: |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2388 |
* (uN - u(N-1) + kN) + ... + (u1 - u0 + k1) + (u0 - 0 + k0) |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2389 |
* Which simplifies to: |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2390 |
* uN + kN + kN-1 + ... + k1 + k0 |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2391 |
* Note however, if we stop before we reach the ORIGIN we get: |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2392 |
* uN + kN + kN-1 + ... + kM - uM-1 |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2393 |
*/ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2394 |
pa->used = origin_ds->ds_phys->ds_used_bytes; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2395 |
pa->comp = origin_ds->ds_phys->ds_compressed_bytes; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2396 |
pa->uncomp = origin_ds->ds_phys->ds_uncompressed_bytes; |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2397 |
for (snap = list_head(&pa->shared_snaps); snap; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2398 |
snap = list_next(&pa->shared_snaps, snap)) { |
2082 | 2399 |
uint64_t val, dlused, dlcomp, dluncomp; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2400 |
dsl_dataset_t *ds = snap->ds; |
2082 | 2401 |
|
2402 |
/* Check that the snapshot name does not conflict */ |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2403 |
VERIFY(0 == dsl_dataset_get_snapname(ds)); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2404 |
err = dsl_dataset_snap_lookup(hds, ds->ds_snapname, &val); |
10588
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2405 |
if (err == 0) { |
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2406 |
err = EEXIST; |
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2407 |
goto out; |
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2408 |
} |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2409 |
if (err != ENOENT) |
10588
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2410 |
goto out; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2411 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2412 |
/* The very first snapshot does not have a deadlist */ |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2413 |
if (ds->ds_phys->ds_prev_snap_obj == 0) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2414 |
continue; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2415 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2416 |
if (err = bplist_space(&ds->ds_deadlist, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2417 |
&dlused, &dlcomp, &dluncomp)) |
10588
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2418 |
goto out; |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2419 |
pa->used += dlused; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2420 |
pa->comp += dlcomp; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2421 |
pa->uncomp += dluncomp; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2422 |
} |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2423 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2424 |
/* |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2425 |
* If we are a clone of a clone then we never reached ORIGIN, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2426 |
* so we need to subtract out the clone origin's used space. |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2427 |
*/ |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2428 |
if (pa->origin_origin) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2429 |
pa->used -= pa->origin_origin->ds_phys->ds_used_bytes; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2430 |
pa->comp -= pa->origin_origin->ds_phys->ds_compressed_bytes; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2431 |
pa->uncomp -= pa->origin_origin->ds_phys->ds_uncompressed_bytes; |
2082 | 2432 |
} |
2433 |
||
2434 |
/* Check that there is enough space here */ |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2435 |
err = dsl_dir_transfer_possible(origin_ds->ds_dir, hds->ds_dir, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2436 |
pa->used); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2437 |
if (err) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2438 |
return (err); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2439 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2440 |
/* |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2441 |
* Compute the amounts of space that will be used by snapshots |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2442 |
* after the promotion (for both origin and clone). For each, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2443 |
* it is the amount of space that will be on all of their |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2444 |
* deadlists (that was not born before their new origin). |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2445 |
*/ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2446 |
if (hds->ds_dir->dd_phys->dd_flags & DD_FLAG_USED_BREAKDOWN) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2447 |
uint64_t space; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2448 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2449 |
/* |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2450 |
* Note, typically this will not be a clone of a clone, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2451 |
* so snap->ds->ds_origin_txg will be < TXG_INITIAL, so |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2452 |
* these snaplist_space() -> bplist_space_birthrange() |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2453 |
* calls will be fast because they do not have to |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2454 |
* iterate over all bps. |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2455 |
*/ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2456 |
snap = list_head(&pa->origin_snaps); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2457 |
err = snaplist_space(&pa->shared_snaps, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2458 |
snap->ds->ds_origin_txg, &pa->cloneusedsnap); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2459 |
if (err) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2460 |
return (err); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2461 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2462 |
err = snaplist_space(&pa->clone_snaps, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2463 |
snap->ds->ds_origin_txg, &space); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2464 |
if (err) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2465 |
return (err); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2466 |
pa->cloneusedsnap += space; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2467 |
} |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2468 |
if (origin_ds->ds_dir->dd_phys->dd_flags & DD_FLAG_USED_BREAKDOWN) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2469 |
err = snaplist_space(&pa->origin_snaps, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2470 |
origin_ds->ds_phys->ds_creation_txg, &pa->originusedsnap); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2471 |
if (err) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2472 |
return (err); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2473 |
} |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2474 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2475 |
return (0); |
10588
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2476 |
out: |
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2477 |
pa->err_ds = snap->ds->ds_snapname; |
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2478 |
return (err); |
2199 | 2479 |
} |
2082 | 2480 |
|
2199 | 2481 |
static void |
4543 | 2482 |
dsl_dataset_promote_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) |
2199 | 2483 |
{ |
2484 |
dsl_dataset_t *hds = arg1; |
|
2485 |
struct promotearg *pa = arg2; |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2486 |
struct promotenode *snap = list_head(&pa->shared_snaps); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2487 |
dsl_dataset_t *origin_ds = snap->ds; |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2488 |
dsl_dataset_t *origin_head; |
2199 | 2489 |
dsl_dir_t *dd = hds->ds_dir; |
2490 |
dsl_pool_t *dp = hds->ds_dir->dd_pool; |
|
5367 | 2491 |
dsl_dir_t *odd = NULL; |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2492 |
uint64_t oldnext_obj; |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2493 |
int64_t delta; |
2199 | 2494 |
|
2495 |
ASSERT(0 == (hds->ds_phys->ds_flags & DS_FLAG_NOPROMOTE)); |
|
2496 |
||
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2497 |
snap = list_head(&pa->origin_snaps); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2498 |
origin_head = snap->ds; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2499 |
|
2417 | 2500 |
/* |
5367 | 2501 |
* We need to explicitly open odd, since origin_ds's dd will be |
2417 | 2502 |
* changing. |
2503 |
*/ |
|
5367 | 2504 |
VERIFY(0 == dsl_dir_open_obj(dp, origin_ds->ds_dir->dd_object, |
2505 |
NULL, FTAG, &odd)); |
|
2082 | 2506 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2507 |
/* change origin's next snap */ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2508 |
dmu_buf_will_dirty(origin_ds->ds_dbuf, tx); |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2509 |
oldnext_obj = origin_ds->ds_phys->ds_next_snap_obj; |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2510 |
snap = list_tail(&pa->clone_snaps); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2511 |
ASSERT3U(snap->ds->ds_phys->ds_prev_snap_obj, ==, origin_ds->ds_object); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2512 |
origin_ds->ds_phys->ds_next_snap_obj = snap->ds->ds_object; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2513 |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2514 |
/* change the origin's next clone */ |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2515 |
if (origin_ds->ds_phys->ds_next_clones_obj) { |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2516 |
VERIFY3U(0, ==, zap_remove_int(dp->dp_meta_objset, |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2517 |
origin_ds->ds_phys->ds_next_clones_obj, |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2518 |
origin_ds->ds_phys->ds_next_snap_obj, tx)); |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2519 |
VERIFY3U(0, ==, zap_add_int(dp->dp_meta_objset, |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2520 |
origin_ds->ds_phys->ds_next_clones_obj, |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2521 |
oldnext_obj, tx)); |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2522 |
} |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2523 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2524 |
/* change origin */ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2525 |
dmu_buf_will_dirty(dd->dd_dbuf, tx); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2526 |
ASSERT3U(dd->dd_phys->dd_origin_obj, ==, origin_ds->ds_object); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2527 |
dd->dd_phys->dd_origin_obj = odd->dd_phys->dd_origin_obj; |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2528 |
hds->ds_origin_txg = origin_head->ds_origin_txg; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2529 |
dmu_buf_will_dirty(odd->dd_dbuf, tx); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2530 |
odd->dd_phys->dd_origin_obj = origin_ds->ds_object; |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2531 |
origin_head->ds_origin_txg = origin_ds->ds_phys->ds_creation_txg; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2532 |
|
2082 | 2533 |
/* move snapshots to this dir */ |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2534 |
for (snap = list_head(&pa->shared_snaps); snap; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2535 |
snap = list_next(&pa->shared_snaps, snap)) { |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2536 |
dsl_dataset_t *ds = snap->ds; |
2082 | 2537 |
|
7237
f47d41541b14
PSARC 2008/393 zfs primarycache and secondarycache properties
ek110237
parents:
7077
diff
changeset
|
2538 |
/* unregister props as dsl_dir is changing */ |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
2539 |
if (ds->ds_objset) { |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
2540 |
dmu_objset_evict(ds->ds_objset); |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
2541 |
ds->ds_objset = NULL; |
7237
f47d41541b14
PSARC 2008/393 zfs primarycache and secondarycache properties
ek110237
parents:
7077
diff
changeset
|
2542 |
} |
2082 | 2543 |
/* move snap name entry */ |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2544 |
VERIFY(0 == dsl_dataset_get_snapname(ds)); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2545 |
VERIFY(0 == dsl_dataset_snap_remove(origin_head, |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2546 |
ds->ds_snapname, tx)); |
2199 | 2547 |
VERIFY(0 == zap_add(dp->dp_meta_objset, |
2082 | 2548 |
hds->ds_phys->ds_snapnames_zapobj, ds->ds_snapname, |
2549 |
8, 1, &ds->ds_object, tx)); |
|
2550 |
/* change containing dsl_dir */ |
|
2551 |
dmu_buf_will_dirty(ds->ds_dbuf, tx); |
|
5367 | 2552 |
ASSERT3U(ds->ds_phys->ds_dir_obj, ==, odd->dd_object); |
2082 | 2553 |
ds->ds_phys->ds_dir_obj = dd->dd_object; |
5367 | 2554 |
ASSERT3P(ds->ds_dir, ==, odd); |
2082 | 2555 |
dsl_dir_close(ds->ds_dir, ds); |
2199 | 2556 |
VERIFY(0 == dsl_dir_open_obj(dp, dd->dd_object, |
2082 | 2557 |
NULL, ds, &ds->ds_dir)); |
2558 |
||
2559 |
ASSERT3U(dsl_prop_numcb(ds), ==, 0); |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2560 |
} |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2561 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2562 |
/* |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2563 |
* Change space accounting. |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2564 |
* Note, pa->*usedsnap and dd_used_breakdown[SNAP] will either |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2565 |
* both be valid, or both be 0 (resulting in delta == 0). This |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2566 |
* is true for each of {clone,origin} independently. |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2567 |
*/ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2568 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2569 |
delta = pa->cloneusedsnap - |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2570 |
dd->dd_phys->dd_used_breakdown[DD_USED_SNAP]; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2571 |
ASSERT3S(delta, >=, 0); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2572 |
ASSERT3U(pa->used, >=, delta); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2573 |
dsl_dir_diduse_space(dd, DD_USED_SNAP, delta, 0, 0, tx); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2574 |
dsl_dir_diduse_space(dd, DD_USED_HEAD, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2575 |
pa->used - delta, pa->comp, pa->uncomp, tx); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2576 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2577 |
delta = pa->originusedsnap - |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2578 |
odd->dd_phys->dd_used_breakdown[DD_USED_SNAP]; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2579 |
ASSERT3S(delta, <=, 0); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2580 |
ASSERT3U(pa->used, >=, -delta); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2581 |
dsl_dir_diduse_space(odd, DD_USED_SNAP, delta, 0, 0, tx); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2582 |
dsl_dir_diduse_space(odd, DD_USED_HEAD, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2583 |
-pa->used - delta, -pa->comp, -pa->uncomp, tx); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2584 |
|
5367 | 2585 |
origin_ds->ds_phys->ds_unique_bytes = pa->unique; |
2082 | 2586 |
|
4543 | 2587 |
/* log history record */ |
2588 |
spa_history_internal_log(LOG_DS_PROMOTE, dd->dd_pool->dp_spa, tx, |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2589 |
cr, "dataset = %llu", hds->ds_object); |
4543 | 2590 |
|
5367 | 2591 |
dsl_dir_close(odd, FTAG); |
2082 | 2592 |
} |
2593 |
||
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2594 |
static char *snaplist_tag = "snaplist"; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2595 |
/* |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2596 |
* Make a list of dsl_dataset_t's for the snapshots between first_obj |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2597 |
* (exclusive) and last_obj (inclusive). The list will be in reverse |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2598 |
* order (last_obj will be the list_head()). If first_obj == 0, do all |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2599 |
* snapshots back to this dataset's origin. |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2600 |
*/ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2601 |
static int |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2602 |
snaplist_make(dsl_pool_t *dp, boolean_t own, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2603 |
uint64_t first_obj, uint64_t last_obj, list_t *l) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2604 |
{ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2605 |
uint64_t obj = last_obj; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2606 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2607 |
ASSERT(RW_LOCK_HELD(&dp->dp_config_rwlock)); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2608 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2609 |
list_create(l, sizeof (struct promotenode), |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2610 |
offsetof(struct promotenode, link)); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2611 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2612 |
while (obj != first_obj) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2613 |
dsl_dataset_t *ds; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2614 |
struct promotenode *snap; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2615 |
int err; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2616 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2617 |
if (own) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2618 |
err = dsl_dataset_own_obj(dp, obj, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2619 |
0, snaplist_tag, &ds); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2620 |
if (err == 0) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2621 |
dsl_dataset_make_exclusive(ds, snaplist_tag); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2622 |
} else { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2623 |
err = dsl_dataset_hold_obj(dp, obj, snaplist_tag, &ds); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2624 |
} |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2625 |
if (err == ENOENT) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2626 |
/* lost race with snapshot destroy */ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2627 |
struct promotenode *last = list_tail(l); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2628 |
ASSERT(obj != last->ds->ds_phys->ds_prev_snap_obj); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2629 |
obj = last->ds->ds_phys->ds_prev_snap_obj; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2630 |
continue; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2631 |
} else if (err) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2632 |
return (err); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2633 |
} |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2634 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2635 |
if (first_obj == 0) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2636 |
first_obj = ds->ds_dir->dd_phys->dd_origin_obj; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2637 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2638 |
snap = kmem_alloc(sizeof (struct promotenode), KM_SLEEP); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2639 |
snap->ds = ds; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2640 |
list_insert_tail(l, snap); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2641 |
obj = ds->ds_phys->ds_prev_snap_obj; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2642 |
} |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2643 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2644 |
return (0); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2645 |
} |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2646 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2647 |
static int |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2648 |
snaplist_space(list_t *l, uint64_t mintxg, uint64_t *spacep) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2649 |
{ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2650 |
struct promotenode *snap; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2651 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2652 |
*spacep = 0; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2653 |
for (snap = list_head(l); snap; snap = list_next(l, snap)) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2654 |
uint64_t used; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2655 |
int err = bplist_space_birthrange(&snap->ds->ds_deadlist, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2656 |
mintxg, UINT64_MAX, &used); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2657 |
if (err) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2658 |
return (err); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2659 |
*spacep += used; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2660 |
} |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2661 |
return (0); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2662 |
} |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2663 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2664 |
static void |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2665 |
snaplist_destroy(list_t *l, boolean_t own) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2666 |
{ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2667 |
struct promotenode *snap; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2668 |
|
8779
f164e0e90508
6784924 panic while ludelete (zfs destroy)
Mark J Musante <Mark.Musante@Sun.COM>
parents:
8746
diff
changeset
|
2669 |
if (!l || !list_link_active(&l->list_head)) |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2670 |
return; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2671 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2672 |
while ((snap = list_tail(l)) != NULL) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2673 |
list_remove(l, snap); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2674 |
if (own) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2675 |
dsl_dataset_disown(snap->ds, snaplist_tag); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2676 |
else |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2677 |
dsl_dataset_rele(snap->ds, snaplist_tag); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2678 |
kmem_free(snap, sizeof (struct promotenode)); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2679 |
} |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2680 |
list_destroy(l); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2681 |
} |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2682 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2683 |
/* |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2684 |
* Promote a clone. Nomenclature note: |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2685 |
* "clone" or "cds": the original clone which is being promoted |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2686 |
* "origin" or "ods": the snapshot which is originally clone's origin |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2687 |
* "origin head" or "ohds": the dataset which is the head |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2688 |
* (filesystem/volume) for the origin |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2689 |
* "origin origin": the origin of the origin's filesystem (typically |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2690 |
* NULL, indicating that the clone is not a clone of a clone). |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2691 |
*/ |
2082 | 2692 |
int |
10588
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2693 |
dsl_dataset_promote(const char *name, char *conflsnap) |
2082 | 2694 |
{ |
2695 |
dsl_dataset_t *ds; |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2696 |
dsl_dir_t *dd; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2697 |
dsl_pool_t *dp; |
2082 | 2698 |
dmu_object_info_t doi; |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2699 |
struct promotearg pa = { 0 }; |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2700 |
struct promotenode *snap; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2701 |
int err; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2702 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2703 |
err = dsl_dataset_hold(name, FTAG, &ds); |
2082 | 2704 |
if (err) |
2705 |
return (err); |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2706 |
dd = ds->ds_dir; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2707 |
dp = dd->dd_pool; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2708 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2709 |
err = dmu_object_info(dp->dp_meta_objset, |
2082 | 2710 |
ds->ds_phys->ds_snapnames_zapobj, &doi); |
2711 |
if (err) { |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2712 |
dsl_dataset_rele(ds, FTAG); |
2082 | 2713 |
return (err); |
2714 |
} |
|
2715 |
||
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2716 |
if (dsl_dataset_is_snapshot(ds) || dd->dd_phys->dd_origin_obj == 0) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2717 |
dsl_dataset_rele(ds, FTAG); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2718 |
return (EINVAL); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2719 |
} |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2720 |
|
2082 | 2721 |
/* |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2722 |
* We are going to inherit all the snapshots taken before our |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2723 |
* origin (i.e., our new origin will be our parent's origin). |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2724 |
* Take ownership of them so that we can rename them into our |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2725 |
* namespace. |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2726 |
*/ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2727 |
rw_enter(&dp->dp_config_rwlock, RW_READER); |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2728 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2729 |
err = snaplist_make(dp, B_TRUE, 0, dd->dd_phys->dd_origin_obj, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2730 |
&pa.shared_snaps); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2731 |
if (err != 0) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2732 |
goto out; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2733 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2734 |
err = snaplist_make(dp, B_FALSE, 0, ds->ds_object, &pa.clone_snaps); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2735 |
if (err != 0) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2736 |
goto out; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2737 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2738 |
snap = list_head(&pa.shared_snaps); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2739 |
ASSERT3U(snap->ds->ds_object, ==, dd->dd_phys->dd_origin_obj); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2740 |
err = snaplist_make(dp, B_FALSE, dd->dd_phys->dd_origin_obj, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2741 |
snap->ds->ds_dir->dd_phys->dd_head_dataset_obj, &pa.origin_snaps); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2742 |
if (err != 0) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2743 |
goto out; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2744 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2745 |
if (dsl_dir_is_clone(snap->ds->ds_dir)) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2746 |
err = dsl_dataset_own_obj(dp, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2747 |
snap->ds->ds_dir->dd_phys->dd_origin_obj, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2748 |
0, FTAG, &pa.origin_origin); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2749 |
if (err != 0) |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2750 |
goto out; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2751 |
} |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2752 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2753 |
out: |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2754 |
rw_exit(&dp->dp_config_rwlock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2755 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2756 |
/* |
2082 | 2757 |
* Add in 128x the snapnames zapobj size, since we will be moving |
2758 |
* a bunch of snapnames to the promoted ds, and dirtying their |
|
2759 |
* bonus buffers. |
|
2760 |
*/ |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2761 |
if (err == 0) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2762 |
err = dsl_sync_task_do(dp, dsl_dataset_promote_check, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2763 |
dsl_dataset_promote_sync, ds, &pa, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2764 |
2 + 2 * doi.doi_physical_blks); |
10588
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2765 |
if (err && pa.err_ds && conflsnap) |
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2766 |
(void) strncpy(conflsnap, pa.err_ds, MAXNAMELEN); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2767 |
} |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2768 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2769 |
snaplist_destroy(&pa.shared_snaps, B_TRUE); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2770 |
snaplist_destroy(&pa.clone_snaps, B_FALSE); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2771 |
snaplist_destroy(&pa.origin_snaps, B_FALSE); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2772 |
if (pa.origin_origin) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2773 |
dsl_dataset_disown(pa.origin_origin, FTAG); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2774 |
dsl_dataset_rele(ds, FTAG); |
2082 | 2775 |
return (err); |
2776 |
} |
|
3912 | 2777 |
|
5367 | 2778 |
struct cloneswaparg { |
2779 |
dsl_dataset_t *cds; /* clone dataset */ |
|
2780 |
dsl_dataset_t *ohds; /* origin's head dataset */ |
|
2781 |
boolean_t force; |
|
5481
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2782 |
int64_t unused_refres_delta; /* change in unconsumed refreservation */ |
5367 | 2783 |
}; |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2784 |
|
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2785 |
/* ARGSUSED */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2786 |
static int |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2787 |
dsl_dataset_clone_swap_check(void *arg1, void *arg2, dmu_tx_t *tx) |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2788 |
{ |
5367 | 2789 |
struct cloneswaparg *csa = arg1; |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2790 |
|
5367 | 2791 |
/* they should both be heads */ |
2792 |
if (dsl_dataset_is_snapshot(csa->cds) || |
|
2793 |
dsl_dataset_is_snapshot(csa->ohds)) |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2794 |
return (EINVAL); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2795 |
|
5367 | 2796 |
/* the branch point should be just before them */ |
2797 |
if (csa->cds->ds_prev != csa->ohds->ds_prev) |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2798 |
return (EINVAL); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2799 |
|
10272
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2800 |
/* cds should be the clone (unless they are unrelated) */ |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2801 |
if (csa->cds->ds_prev != NULL && |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2802 |
csa->cds->ds_prev != csa->cds->ds_dir->dd_pool->dp_origin_snap && |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2803 |
csa->ohds->ds_object != |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2804 |
csa->cds->ds_prev->ds_phys->ds_next_snap_obj) |
5367 | 2805 |
return (EINVAL); |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2806 |
|
5367 | 2807 |
/* the clone should be a child of the origin */ |
2808 |
if (csa->cds->ds_dir->dd_parent != csa->ohds->ds_dir) |
|
2809 |
return (EINVAL); |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2810 |
|
5367 | 2811 |
/* ohds shouldn't be modified unless 'force' */ |
2812 |
if (!csa->force && dsl_dataset_modified_since_lastsnap(csa->ohds)) |
|
2813 |
return (ETXTBSY); |
|
5481
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2814 |
|
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2815 |
/* adjust amount of any unconsumed refreservation */ |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2816 |
csa->unused_refres_delta = |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2817 |
(int64_t)MIN(csa->ohds->ds_reserved, |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2818 |
csa->ohds->ds_phys->ds_unique_bytes) - |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2819 |
(int64_t)MIN(csa->ohds->ds_reserved, |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2820 |
csa->cds->ds_phys->ds_unique_bytes); |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2821 |
|
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2822 |
if (csa->unused_refres_delta > 0 && |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2823 |
csa->unused_refres_delta > |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2824 |
dsl_dir_space_available(csa->ohds->ds_dir, NULL, 0, TRUE)) |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2825 |
return (ENOSPC); |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2826 |
|
10799
395576ddfea9
6881321 zfs test rsend_012_pos panics when running daily.0807 archives
Chris Kirby <Chris.Kirby@sun.com>
parents:
10588
diff
changeset
|
2827 |
if (csa->ohds->ds_quota != 0 && |
395576ddfea9
6881321 zfs test rsend_012_pos panics when running daily.0807 archives
Chris Kirby <Chris.Kirby@sun.com>
parents:
10588
diff
changeset
|
2828 |
csa->cds->ds_phys->ds_unique_bytes > csa->ohds->ds_quota) |
395576ddfea9
6881321 zfs test rsend_012_pos panics when running daily.0807 archives
Chris Kirby <Chris.Kirby@sun.com>
parents:
10588
diff
changeset
|
2829 |
return (EDQUOT); |
395576ddfea9
6881321 zfs test rsend_012_pos panics when running daily.0807 archives
Chris Kirby <Chris.Kirby@sun.com>
parents:
10588
diff
changeset
|
2830 |
|
5367 | 2831 |
return (0); |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2832 |
} |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2833 |
|
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2834 |
/* ARGSUSED */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2835 |
static void |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2836 |
dsl_dataset_clone_swap_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2837 |
{ |
5367 | 2838 |
struct cloneswaparg *csa = arg1; |
2839 |
dsl_pool_t *dp = csa->cds->ds_dir->dd_pool; |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2840 |
|
5481
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2841 |
ASSERT(csa->cds->ds_reserved == 0); |
10799
395576ddfea9
6881321 zfs test rsend_012_pos panics when running daily.0807 archives
Chris Kirby <Chris.Kirby@sun.com>
parents:
10588
diff
changeset
|
2842 |
ASSERT(csa->ohds->ds_quota == 0 || |
395576ddfea9
6881321 zfs test rsend_012_pos panics when running daily.0807 archives
Chris Kirby <Chris.Kirby@sun.com>
parents:
10588
diff
changeset
|
2843 |
csa->cds->ds_phys->ds_unique_bytes <= csa->ohds->ds_quota); |
5481
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2844 |
|
5367 | 2845 |
dmu_buf_will_dirty(csa->cds->ds_dbuf, tx); |
2846 |
dmu_buf_will_dirty(csa->ohds->ds_dbuf, tx); |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2847 |
|
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
2848 |
if (csa->cds->ds_objset != NULL) { |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
2849 |
dmu_objset_evict(csa->cds->ds_objset); |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
2850 |
csa->cds->ds_objset = NULL; |
5367 | 2851 |
} |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2852 |
|
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
2853 |
if (csa->ohds->ds_objset != NULL) { |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
2854 |
dmu_objset_evict(csa->ohds->ds_objset); |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
2855 |
csa->ohds->ds_objset = NULL; |
5367 | 2856 |
} |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2857 |
|
10272
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2858 |
/* |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2859 |
* Reset origin's unique bytes, if it exists. |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2860 |
*/ |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2861 |
if (csa->cds->ds_prev) { |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2862 |
dsl_dataset_t *origin = csa->cds->ds_prev; |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2863 |
dmu_buf_will_dirty(origin->ds_dbuf, tx); |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2864 |
VERIFY(0 == bplist_space_birthrange(&csa->cds->ds_deadlist, |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2865 |
origin->ds_phys->ds_prev_snap_txg, UINT64_MAX, |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2866 |
&origin->ds_phys->ds_unique_bytes)); |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2867 |
} |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2868 |
|
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2869 |
/* swap blkptrs */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2870 |
{ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2871 |
blkptr_t tmp; |
5367 | 2872 |
tmp = csa->ohds->ds_phys->ds_bp; |
2873 |
csa->ohds->ds_phys->ds_bp = csa->cds->ds_phys->ds_bp; |
|
2874 |
csa->cds->ds_phys->ds_bp = tmp; |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2875 |
} |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2876 |
|
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2877 |
/* set dd_*_bytes */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2878 |
{ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2879 |
int64_t dused, dcomp, duncomp; |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2880 |
uint64_t cdl_used, cdl_comp, cdl_uncomp; |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2881 |
uint64_t odl_used, odl_comp, odl_uncomp; |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2882 |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2883 |
ASSERT3U(csa->cds->ds_dir->dd_phys-> |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2884 |
dd_used_breakdown[DD_USED_SNAP], ==, 0); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2885 |
|
5367 | 2886 |
VERIFY(0 == bplist_space(&csa->cds->ds_deadlist, &cdl_used, |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2887 |
&cdl_comp, &cdl_uncomp)); |
5367 | 2888 |
VERIFY(0 == bplist_space(&csa->ohds->ds_deadlist, &odl_used, |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2889 |
&odl_comp, &odl_uncomp)); |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2890 |
|
5367 | 2891 |
dused = csa->cds->ds_phys->ds_used_bytes + cdl_used - |
2892 |
(csa->ohds->ds_phys->ds_used_bytes + odl_used); |
|
2893 |
dcomp = csa->cds->ds_phys->ds_compressed_bytes + cdl_comp - |
|
2894 |
(csa->ohds->ds_phys->ds_compressed_bytes + odl_comp); |
|
2895 |
duncomp = csa->cds->ds_phys->ds_uncompressed_bytes + |
|
2896 |
cdl_uncomp - |
|
2897 |
(csa->ohds->ds_phys->ds_uncompressed_bytes + odl_uncomp); |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2898 |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2899 |
dsl_dir_diduse_space(csa->ohds->ds_dir, DD_USED_HEAD, |
5367 | 2900 |
dused, dcomp, duncomp, tx); |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2901 |
dsl_dir_diduse_space(csa->cds->ds_dir, DD_USED_HEAD, |
5367 | 2902 |
-dused, -dcomp, -duncomp, tx); |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2903 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2904 |
/* |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2905 |
* The difference in the space used by snapshots is the |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2906 |
* difference in snapshot space due to the head's |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2907 |
* deadlist (since that's the only thing that's |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2908 |
* changing that affects the snapused). |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2909 |
*/ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2910 |
VERIFY(0 == bplist_space_birthrange(&csa->cds->ds_deadlist, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2911 |
csa->ohds->ds_origin_txg, UINT64_MAX, &cdl_used)); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2912 |
VERIFY(0 == bplist_space_birthrange(&csa->ohds->ds_deadlist, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2913 |
csa->ohds->ds_origin_txg, UINT64_MAX, &odl_used)); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2914 |
dsl_dir_transfer_space(csa->ohds->ds_dir, cdl_used - odl_used, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2915 |
DD_USED_HEAD, DD_USED_SNAP, tx); |
5367 | 2916 |
} |
2917 |
||
2918 |
#define SWITCH64(x, y) \ |
|
2919 |
{ \ |
|
2920 |
uint64_t __tmp = (x); \ |
|
2921 |
(x) = (y); \ |
|
2922 |
(y) = __tmp; \ |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2923 |
} |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2924 |
|
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2925 |
/* swap ds_*_bytes */ |
5367 | 2926 |
SWITCH64(csa->ohds->ds_phys->ds_used_bytes, |
2927 |
csa->cds->ds_phys->ds_used_bytes); |
|
2928 |
SWITCH64(csa->ohds->ds_phys->ds_compressed_bytes, |
|
2929 |
csa->cds->ds_phys->ds_compressed_bytes); |
|
2930 |
SWITCH64(csa->ohds->ds_phys->ds_uncompressed_bytes, |
|
2931 |
csa->cds->ds_phys->ds_uncompressed_bytes); |
|
5481
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2932 |
SWITCH64(csa->ohds->ds_phys->ds_unique_bytes, |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2933 |
csa->cds->ds_phys->ds_unique_bytes); |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2934 |
|
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2935 |
/* apply any parent delta for change in unconsumed refreservation */ |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2936 |
dsl_dir_diduse_space(csa->ohds->ds_dir, DD_USED_REFRSRV, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2937 |
csa->unused_refres_delta, 0, 0, tx); |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2938 |
|
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2939 |
/* swap deadlists */ |
5367 | 2940 |
bplist_close(&csa->cds->ds_deadlist); |
2941 |
bplist_close(&csa->ohds->ds_deadlist); |
|
2942 |
SWITCH64(csa->ohds->ds_phys->ds_deadlist_obj, |
|
2943 |
csa->cds->ds_phys->ds_deadlist_obj); |
|
2944 |
VERIFY(0 == bplist_open(&csa->cds->ds_deadlist, dp->dp_meta_objset, |
|
2945 |
csa->cds->ds_phys->ds_deadlist_obj)); |
|
2946 |
VERIFY(0 == bplist_open(&csa->ohds->ds_deadlist, dp->dp_meta_objset, |
|
2947 |
csa->ohds->ds_phys->ds_deadlist_obj)); |
|
7837
001de5627df3
6333409 traversal code should be able to issue multiple reads in parallel
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7754
diff
changeset
|
2948 |
|
001de5627df3
6333409 traversal code should be able to issue multiple reads in parallel
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7754
diff
changeset
|
2949 |
dsl_pool_ds_clone_swapped(csa->ohds, csa->cds, tx); |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2950 |
} |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2951 |
|
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2952 |
/* |
10272
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2953 |
* Swap 'clone' with its origin head datasets. Used at the end of "zfs |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2954 |
* recv" into an existing fs to swizzle the file system to the new |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2955 |
* version, and by "zfs rollback". Can also be used to swap two |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2956 |
* independent head datasets if neither has any snapshots. |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2957 |
*/ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2958 |
int |
5367 | 2959 |
dsl_dataset_clone_swap(dsl_dataset_t *clone, dsl_dataset_t *origin_head, |
2960 |
boolean_t force) |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2961 |
{ |
5367 | 2962 |
struct cloneswaparg csa; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2963 |
int error; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2964 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2965 |
ASSERT(clone->ds_owner); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2966 |
ASSERT(origin_head->ds_owner); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2967 |
retry: |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2968 |
/* Need exclusive access for the swap */ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2969 |
rw_enter(&clone->ds_rwlock, RW_WRITER); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2970 |
if (!rw_tryenter(&origin_head->ds_rwlock, RW_WRITER)) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2971 |
rw_exit(&clone->ds_rwlock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2972 |
rw_enter(&origin_head->ds_rwlock, RW_WRITER); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2973 |
if (!rw_tryenter(&clone->ds_rwlock, RW_WRITER)) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2974 |
rw_exit(&origin_head->ds_rwlock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2975 |
goto retry; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2976 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2977 |
} |
5367 | 2978 |
csa.cds = clone; |
2979 |
csa.ohds = origin_head; |
|
2980 |
csa.force = force; |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2981 |
error = dsl_sync_task_do(clone->ds_dir->dd_pool, |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2982 |
dsl_dataset_clone_swap_check, |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2983 |
dsl_dataset_clone_swap_sync, &csa, NULL, 9); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2984 |
return (error); |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2985 |
} |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2986 |
|
3912 | 2987 |
/* |
2988 |
* Given a pool name and a dataset object number in that pool, |
|
2989 |
* return the name of that dataset. |
|
2990 |
*/ |
|
2991 |
int |
|
2992 |
dsl_dsobj_to_dsname(char *pname, uint64_t obj, char *buf) |
|
2993 |
{ |
|
2994 |
spa_t *spa; |
|
2995 |
dsl_pool_t *dp; |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2996 |
dsl_dataset_t *ds; |
3912 | 2997 |
int error; |
2998 |
||
2999 |
if ((error = spa_open(pname, &spa, FTAG)) != 0) |
|
3000 |
return (error); |
|
3001 |
dp = spa_get_dsl(spa); |
|
3002 |
rw_enter(&dp->dp_config_rwlock, RW_READER); |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3003 |
if ((error = dsl_dataset_hold_obj(dp, obj, FTAG, &ds)) == 0) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3004 |
dsl_dataset_name(ds, buf); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3005 |
dsl_dataset_rele(ds, FTAG); |
3912 | 3006 |
} |
3007 |
rw_exit(&dp->dp_config_rwlock); |
|
3008 |
spa_close(spa, FTAG); |
|
3009 |
||
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3010 |
return (error); |
3912 | 3011 |
} |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3012 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3013 |
int |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3014 |
dsl_dataset_check_quota(dsl_dataset_t *ds, boolean_t check_quota, |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3015 |
uint64_t asize, uint64_t inflight, uint64_t *used, uint64_t *ref_rsrv) |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3016 |
{ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3017 |
int error = 0; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3018 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3019 |
ASSERT3S(asize, >, 0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3020 |
|
5831
48655d6b290b
6630761 In sub-filesystem, available space is less than refreservation space
ck153898
parents:
5712
diff
changeset
|
3021 |
/* |
48655d6b290b
6630761 In sub-filesystem, available space is less than refreservation space
ck153898
parents:
5712
diff
changeset
|
3022 |
* *ref_rsrv is the portion of asize that will come from any |
48655d6b290b
6630761 In sub-filesystem, available space is less than refreservation space
ck153898
parents:
5712
diff
changeset
|
3023 |
* unconsumed refreservation space. |
48655d6b290b
6630761 In sub-filesystem, available space is less than refreservation space
ck153898
parents:
5712
diff
changeset
|
3024 |
*/ |
48655d6b290b
6630761 In sub-filesystem, available space is less than refreservation space
ck153898
parents:
5712
diff
changeset
|
3025 |
*ref_rsrv = 0; |
48655d6b290b
6630761 In sub-filesystem, available space is less than refreservation space
ck153898
parents:
5712
diff
changeset
|
3026 |
|
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3027 |
mutex_enter(&ds->ds_lock); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3028 |
/* |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3029 |
* Make a space adjustment for reserved bytes. |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3030 |
*/ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3031 |
if (ds->ds_reserved > ds->ds_phys->ds_unique_bytes) { |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3032 |
ASSERT3U(*used, >=, |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3033 |
ds->ds_reserved - ds->ds_phys->ds_unique_bytes); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3034 |
*used -= (ds->ds_reserved - ds->ds_phys->ds_unique_bytes); |
5831
48655d6b290b
6630761 In sub-filesystem, available space is less than refreservation space
ck153898
parents:
5712
diff
changeset
|
3035 |
*ref_rsrv = |
48655d6b290b
6630761 In sub-filesystem, available space is less than refreservation space
ck153898
parents:
5712
diff
changeset
|
3036 |
asize - MIN(asize, parent_delta(ds, asize + inflight)); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3037 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3038 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3039 |
if (!check_quota || ds->ds_quota == 0) { |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3040 |
mutex_exit(&ds->ds_lock); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3041 |
return (0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3042 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3043 |
/* |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3044 |
* If they are requesting more space, and our current estimate |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3045 |
* is over quota, they get to try again unless the actual |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3046 |
* on-disk is over quota and there are no pending changes (which |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3047 |
* may free up space for us). |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3048 |
*/ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3049 |
if (ds->ds_phys->ds_used_bytes + inflight >= ds->ds_quota) { |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3050 |
if (inflight > 0 || ds->ds_phys->ds_used_bytes < ds->ds_quota) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3051 |
error = ERESTART; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3052 |
else |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3053 |
error = EDQUOT; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3054 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3055 |
mutex_exit(&ds->ds_lock); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3056 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3057 |
return (error); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3058 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3059 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3060 |
/* ARGSUSED */ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3061 |
static int |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3062 |
dsl_dataset_set_quota_check(void *arg1, void *arg2, dmu_tx_t *tx) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3063 |
{ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3064 |
dsl_dataset_t *ds = arg1; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3065 |
uint64_t *quotap = arg2; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3066 |
uint64_t new_quota = *quotap; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3067 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3068 |
if (spa_version(ds->ds_dir->dd_pool->dp_spa) < SPA_VERSION_REFQUOTA) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3069 |
return (ENOTSUP); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3070 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3071 |
if (new_quota == 0) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3072 |
return (0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3073 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3074 |
if (new_quota < ds->ds_phys->ds_used_bytes || |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3075 |
new_quota < ds->ds_reserved) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3076 |
return (ENOSPC); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3077 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3078 |
return (0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3079 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3080 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3081 |
/* ARGSUSED */ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3082 |
void |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3083 |
dsl_dataset_set_quota_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3084 |
{ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3085 |
dsl_dataset_t *ds = arg1; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3086 |
uint64_t *quotap = arg2; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3087 |
uint64_t new_quota = *quotap; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3088 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3089 |
dmu_buf_will_dirty(ds->ds_dbuf, tx); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3090 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3091 |
ds->ds_quota = new_quota; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3092 |
|
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3093 |
dsl_dir_prop_set_uint64_sync(ds->ds_dir, "refquota", new_quota, cr, tx); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3094 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3095 |
spa_history_internal_log(LOG_DS_REFQUOTA, ds->ds_dir->dd_pool->dp_spa, |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3096 |
tx, cr, "%lld dataset = %llu ", |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3097 |
(longlong_t)new_quota, ds->ds_object); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3098 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3099 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3100 |
int |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3101 |
dsl_dataset_set_quota(const char *dsname, uint64_t quota) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3102 |
{ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3103 |
dsl_dataset_t *ds; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3104 |
int err; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3105 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3106 |
err = dsl_dataset_hold(dsname, FTAG, &ds); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3107 |
if (err) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3108 |
return (err); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3109 |
|
5481
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3110 |
if (quota != ds->ds_quota) { |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3111 |
/* |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3112 |
* If someone removes a file, then tries to set the quota, we |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3113 |
* want to make sure the file freeing takes effect. |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3114 |
*/ |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3115 |
txg_wait_open(ds->ds_dir->dd_pool, 0); |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3116 |
|
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3117 |
err = dsl_sync_task_do(ds->ds_dir->dd_pool, |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3118 |
dsl_dataset_set_quota_check, dsl_dataset_set_quota_sync, |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3119 |
ds, "a, 0); |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3120 |
} |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3121 |
dsl_dataset_rele(ds, FTAG); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3122 |
return (err); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3123 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3124 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3125 |
static int |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3126 |
dsl_dataset_set_reservation_check(void *arg1, void *arg2, dmu_tx_t *tx) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3127 |
{ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3128 |
dsl_dataset_t *ds = arg1; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3129 |
uint64_t *reservationp = arg2; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3130 |
uint64_t new_reservation = *reservationp; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3131 |
uint64_t unique; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3132 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3133 |
if (spa_version(ds->ds_dir->dd_pool->dp_spa) < |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3134 |
SPA_VERSION_REFRESERVATION) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3135 |
return (ENOTSUP); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3136 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3137 |
if (dsl_dataset_is_snapshot(ds)) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3138 |
return (EINVAL); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3139 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3140 |
/* |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3141 |
* If we are doing the preliminary check in open context, the |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3142 |
* space estimates may be inaccurate. |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3143 |
*/ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3144 |
if (!dmu_tx_is_syncing(tx)) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3145 |
return (0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3146 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3147 |
mutex_enter(&ds->ds_lock); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3148 |
unique = dsl_dataset_unique(ds); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3149 |
mutex_exit(&ds->ds_lock); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3150 |
|
8525
e0e0e525d0f8
6788830 set large value to reservation cause core dump
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
8517
diff
changeset
|
3151 |
if (MAX(unique, new_reservation) > MAX(unique, ds->ds_reserved)) { |
e0e0e525d0f8
6788830 set large value to reservation cause core dump
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
8517
diff
changeset
|
3152 |
uint64_t delta = MAX(unique, new_reservation) - |
e0e0e525d0f8
6788830 set large value to reservation cause core dump
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
8517
diff
changeset
|
3153 |
MAX(unique, ds->ds_reserved); |
e0e0e525d0f8
6788830 set large value to reservation cause core dump
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
8517
diff
changeset
|
3154 |
|
e0e0e525d0f8
6788830 set large value to reservation cause core dump
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
8517
diff
changeset
|
3155 |
if (delta > dsl_dir_space_available(ds->ds_dir, NULL, 0, TRUE)) |
e0e0e525d0f8
6788830 set large value to reservation cause core dump
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
8517
diff
changeset
|
3156 |
return (ENOSPC); |
e0e0e525d0f8
6788830 set large value to reservation cause core dump
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
8517
diff
changeset
|
3157 |
if (ds->ds_quota > 0 && |
e0e0e525d0f8
6788830 set large value to reservation cause core dump
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
8517
diff
changeset
|
3158 |
new_reservation > ds->ds_quota) |
e0e0e525d0f8
6788830 set large value to reservation cause core dump
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
8517
diff
changeset
|
3159 |
return (ENOSPC); |
e0e0e525d0f8
6788830 set large value to reservation cause core dump
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
8517
diff
changeset
|
3160 |
} |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3161 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3162 |
return (0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3163 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3164 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3165 |
/* ARGSUSED */ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3166 |
static void |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3167 |
dsl_dataset_set_reservation_sync(void *arg1, void *arg2, cred_t *cr, |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3168 |
dmu_tx_t *tx) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3169 |
{ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3170 |
dsl_dataset_t *ds = arg1; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3171 |
uint64_t *reservationp = arg2; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3172 |
uint64_t new_reservation = *reservationp; |
7595
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3173 |
uint64_t unique; |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3174 |
int64_t delta; |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3175 |
|
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3176 |
dmu_buf_will_dirty(ds->ds_dbuf, tx); |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3177 |
|
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3178 |
mutex_enter(&ds->ds_dir->dd_lock); |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3179 |
mutex_enter(&ds->ds_lock); |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3180 |
unique = dsl_dataset_unique(ds); |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3181 |
delta = MAX(0, (int64_t)(new_reservation - unique)) - |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3182 |
MAX(0, (int64_t)(ds->ds_reserved - unique)); |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3183 |
ds->ds_reserved = new_reservation; |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3184 |
mutex_exit(&ds->ds_lock); |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3185 |
|
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3186 |
dsl_dir_diduse_space(ds->ds_dir, DD_USED_REFRSRV, delta, 0, 0, tx); |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3187 |
mutex_exit(&ds->ds_dir->dd_lock); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3188 |
dsl_dir_prop_set_uint64_sync(ds->ds_dir, "refreservation", |
7595
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3189 |
new_reservation, cr, tx); |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3190 |
|
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3191 |
spa_history_internal_log(LOG_DS_REFRESERV, |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3192 |
ds->ds_dir->dd_pool->dp_spa, tx, cr, "%lld dataset = %llu", |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3193 |
(longlong_t)new_reservation, ds->ds_object); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3194 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3195 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3196 |
int |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3197 |
dsl_dataset_set_reservation(const char *dsname, uint64_t reservation) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3198 |
{ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3199 |
dsl_dataset_t *ds; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3200 |
int err; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3201 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3202 |
err = dsl_dataset_hold(dsname, FTAG, &ds); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3203 |
if (err) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3204 |
return (err); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3205 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3206 |
err = dsl_sync_task_do(ds->ds_dir->dd_pool, |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3207 |
dsl_dataset_set_reservation_check, |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3208 |
dsl_dataset_set_reservation_sync, ds, &reservation, 0); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3209 |
dsl_dataset_rele(ds, FTAG); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3210 |
return (err); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3211 |
} |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3212 |
|
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3213 |
struct dsl_ds_holdarg { |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3214 |
dsl_sync_task_group_t *dstg; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3215 |
char *htag; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3216 |
char *snapname; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3217 |
boolean_t recursive; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3218 |
boolean_t gotone; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3219 |
boolean_t temphold; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3220 |
char failed[MAXPATHLEN]; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3221 |
}; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3222 |
|
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3223 |
static int |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3224 |
dsl_dataset_user_hold_check(void *arg1, void *arg2, dmu_tx_t *tx) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3225 |
{ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3226 |
dsl_dataset_t *ds = arg1; |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3227 |
struct dsl_ds_holdarg *ha = arg2; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3228 |
char *htag = ha->htag; |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3229 |
objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3230 |
int error = 0; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3231 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3232 |
if (spa_version(ds->ds_dir->dd_pool->dp_spa) < SPA_VERSION_USERREFS) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3233 |
return (ENOTSUP); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3234 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3235 |
if (!dsl_dataset_is_snapshot(ds)) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3236 |
return (EINVAL); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3237 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3238 |
/* tags must be unique */ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3239 |
mutex_enter(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3240 |
if (ds->ds_phys->ds_userrefs_obj) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3241 |
error = zap_lookup(mos, ds->ds_phys->ds_userrefs_obj, htag, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3242 |
8, 1, tx); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3243 |
if (error == 0) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3244 |
error = EEXIST; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3245 |
else if (error == ENOENT) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3246 |
error = 0; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3247 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3248 |
mutex_exit(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3249 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3250 |
return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3251 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3252 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3253 |
static void |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3254 |
dsl_dataset_user_hold_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3255 |
{ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3256 |
dsl_dataset_t *ds = arg1; |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3257 |
struct dsl_ds_holdarg *ha = arg2; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3258 |
char *htag = ha->htag; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3259 |
dsl_pool_t *dp = ds->ds_dir->dd_pool; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3260 |
objset_t *mos = dp->dp_meta_objset; |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3261 |
time_t now = gethrestime_sec(); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3262 |
uint64_t zapobj; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3263 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3264 |
mutex_enter(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3265 |
if (ds->ds_phys->ds_userrefs_obj == 0) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3266 |
/* |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3267 |
* This is the first user hold for this dataset. Create |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3268 |
* the userrefs zap object. |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3269 |
*/ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3270 |
dmu_buf_will_dirty(ds->ds_dbuf, tx); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3271 |
zapobj = ds->ds_phys->ds_userrefs_obj = |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3272 |
zap_create(mos, DMU_OT_USERREFS, DMU_OT_NONE, 0, tx); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3273 |
} else { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3274 |
zapobj = ds->ds_phys->ds_userrefs_obj; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3275 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3276 |
ds->ds_userrefs++; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3277 |
mutex_exit(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3278 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3279 |
VERIFY(0 == zap_add(mos, zapobj, htag, 8, 1, &now, tx)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3280 |
|
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3281 |
if (ha->temphold) { |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3282 |
VERIFY(0 == dsl_pool_user_hold(dp, ds->ds_object, |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3283 |
htag, &now, tx)); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3284 |
} |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3285 |
|
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3286 |
spa_history_internal_log(LOG_DS_USER_HOLD, |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3287 |
dp->dp_spa, tx, cr, "<%s> temp = %d dataset = %llu", htag, |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3288 |
(int)ha->temphold, ds->ds_object); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3289 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3290 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3291 |
static int |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3292 |
dsl_dataset_user_hold_one(char *dsname, void *arg) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3293 |
{ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3294 |
struct dsl_ds_holdarg *ha = arg; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3295 |
dsl_dataset_t *ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3296 |
int error; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3297 |
char *name; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3298 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3299 |
/* alloc a buffer to hold dsname@snapname plus terminating NULL */ |
10272
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
3300 |
name = kmem_asprintf("%s@%s", dsname, ha->snapname); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3301 |
error = dsl_dataset_hold(name, ha->dstg, &ds); |
10272
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
3302 |
strfree(name); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3303 |
if (error == 0) { |
10268
cb380b2e9410
6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot
Chris Kirby <chris.kirby@sun.com>
parents:
10242
diff
changeset
|
3304 |
ha->gotone = B_TRUE; |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3305 |
dsl_sync_task_create(ha->dstg, dsl_dataset_user_hold_check, |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3306 |
dsl_dataset_user_hold_sync, ds, ha, 0); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3307 |
} else if (error == ENOENT && ha->recursive) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3308 |
error = 0; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3309 |
} else { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3310 |
(void) strcpy(ha->failed, dsname); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3311 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3312 |
return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3313 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3314 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3315 |
int |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3316 |
dsl_dataset_user_hold(char *dsname, char *snapname, char *htag, |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3317 |
boolean_t recursive, boolean_t temphold) |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3318 |
{ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3319 |
struct dsl_ds_holdarg *ha; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3320 |
dsl_sync_task_t *dst; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3321 |
spa_t *spa; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3322 |
int error; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3323 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3324 |
ha = kmem_zalloc(sizeof (struct dsl_ds_holdarg), KM_SLEEP); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3325 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3326 |
(void) strlcpy(ha->failed, dsname, sizeof (ha->failed)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3327 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3328 |
error = spa_open(dsname, &spa, FTAG); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3329 |
if (error) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3330 |
kmem_free(ha, sizeof (struct dsl_ds_holdarg)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3331 |
return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3332 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3333 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3334 |
ha->dstg = dsl_sync_task_group_create(spa_get_dsl(spa)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3335 |
ha->htag = htag; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3336 |
ha->snapname = snapname; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3337 |
ha->recursive = recursive; |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3338 |
ha->temphold = temphold; |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3339 |
if (recursive) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3340 |
error = dmu_objset_find(dsname, dsl_dataset_user_hold_one, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3341 |
ha, DS_FIND_CHILDREN); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3342 |
} else { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3343 |
error = dsl_dataset_user_hold_one(dsname, ha); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3344 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3345 |
if (error == 0) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3346 |
error = dsl_sync_task_group_wait(ha->dstg); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3347 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3348 |
for (dst = list_head(&ha->dstg->dstg_tasks); dst; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3349 |
dst = list_next(&ha->dstg->dstg_tasks, dst)) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3350 |
dsl_dataset_t *ds = dst->dst_arg1; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3351 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3352 |
if (dst->dst_err) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3353 |
dsl_dataset_name(ds, ha->failed); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3354 |
*strchr(ha->failed, '@') = '\0'; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3355 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3356 |
dsl_dataset_rele(ds, ha->dstg); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3357 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3358 |
|
10268
cb380b2e9410
6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot
Chris Kirby <chris.kirby@sun.com>
parents:
10242
diff
changeset
|
3359 |
if (error == 0 && recursive && !ha->gotone) |
cb380b2e9410
6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot
Chris Kirby <chris.kirby@sun.com>
parents:
10242
diff
changeset
|
3360 |
error = ENOENT; |
cb380b2e9410
6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot
Chris Kirby <chris.kirby@sun.com>
parents:
10242
diff
changeset
|
3361 |
|
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3362 |
if (error) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3363 |
(void) strcpy(dsname, ha->failed); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3364 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3365 |
dsl_sync_task_group_destroy(ha->dstg); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3366 |
kmem_free(ha, sizeof (struct dsl_ds_holdarg)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3367 |
spa_close(spa, FTAG); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3368 |
return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3369 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3370 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3371 |
struct dsl_ds_releasearg { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3372 |
dsl_dataset_t *ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3373 |
const char *htag; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3374 |
boolean_t own; /* do we own or just hold ds? */ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3375 |
}; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3376 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3377 |
static int |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3378 |
dsl_dataset_release_might_destroy(dsl_dataset_t *ds, const char *htag, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3379 |
boolean_t *might_destroy) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3380 |
{ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3381 |
objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3382 |
uint64_t zapobj; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3383 |
uint64_t tmp; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3384 |
int error; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3385 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3386 |
*might_destroy = B_FALSE; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3387 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3388 |
mutex_enter(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3389 |
zapobj = ds->ds_phys->ds_userrefs_obj; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3390 |
if (zapobj == 0) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3391 |
/* The tag can't possibly exist */ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3392 |
mutex_exit(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3393 |
return (ESRCH); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3394 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3395 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3396 |
/* Make sure the tag exists */ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3397 |
error = zap_lookup(mos, zapobj, htag, 8, 1, &tmp); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3398 |
if (error) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3399 |
mutex_exit(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3400 |
if (error == ENOENT) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3401 |
error = ESRCH; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3402 |
return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3403 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3404 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3405 |
if (ds->ds_userrefs == 1 && ds->ds_phys->ds_num_children == 1 && |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3406 |
DS_IS_DEFER_DESTROY(ds)) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3407 |
*might_destroy = B_TRUE; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3408 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3409 |
mutex_exit(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3410 |
return (0); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3411 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3412 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3413 |
static int |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3414 |
dsl_dataset_user_release_check(void *arg1, void *tag, dmu_tx_t *tx) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3415 |
{ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3416 |
struct dsl_ds_releasearg *ra = arg1; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3417 |
dsl_dataset_t *ds = ra->ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3418 |
boolean_t might_destroy; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3419 |
int error; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3420 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3421 |
if (spa_version(ds->ds_dir->dd_pool->dp_spa) < SPA_VERSION_USERREFS) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3422 |
return (ENOTSUP); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3423 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3424 |
error = dsl_dataset_release_might_destroy(ds, ra->htag, &might_destroy); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3425 |
if (error) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3426 |
return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3427 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3428 |
if (might_destroy) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3429 |
struct dsl_ds_destroyarg dsda = {0}; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3430 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3431 |
if (dmu_tx_is_syncing(tx)) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3432 |
/* |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3433 |
* If we're not prepared to remove the snapshot, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3434 |
* we can't allow the release to happen right now. |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3435 |
*/ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3436 |
if (!ra->own) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3437 |
return (EBUSY); |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3438 |
if (ds->ds_objset) { |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3439 |
dmu_objset_evict(ds->ds_objset); |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3440 |
ds->ds_objset = NULL; |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3441 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3442 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3443 |
dsda.ds = ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3444 |
dsda.releasing = B_TRUE; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3445 |
return (dsl_dataset_destroy_check(&dsda, tag, tx)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3446 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3447 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3448 |
return (0); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3449 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3450 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3451 |
static void |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3452 |
dsl_dataset_user_release_sync(void *arg1, void *tag, cred_t *cr, dmu_tx_t *tx) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3453 |
{ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3454 |
struct dsl_ds_releasearg *ra = arg1; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3455 |
dsl_dataset_t *ds = ra->ds; |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3456 |
dsl_pool_t *dp = ds->ds_dir->dd_pool; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3457 |
objset_t *mos = dp->dp_meta_objset; |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3458 |
uint64_t zapobj; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3459 |
uint64_t dsobj = ds->ds_object; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3460 |
uint64_t refs; |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3461 |
int error; |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3462 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3463 |
mutex_enter(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3464 |
ds->ds_userrefs--; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3465 |
refs = ds->ds_userrefs; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3466 |
mutex_exit(&ds->ds_lock); |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3467 |
error = dsl_pool_user_release(dp, ds->ds_object, ra->htag, tx); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3468 |
VERIFY(error == 0 || error == ENOENT); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3469 |
zapobj = ds->ds_phys->ds_userrefs_obj; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3470 |
VERIFY(0 == zap_remove(mos, zapobj, ra->htag, tx)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3471 |
if (ds->ds_userrefs == 0 && ds->ds_phys->ds_num_children == 1 && |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3472 |
DS_IS_DEFER_DESTROY(ds)) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3473 |
struct dsl_ds_destroyarg dsda = {0}; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3474 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3475 |
ASSERT(ra->own); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3476 |
dsda.ds = ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3477 |
dsda.releasing = B_TRUE; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3478 |
/* We already did the destroy_check */ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3479 |
dsl_dataset_destroy_sync(&dsda, tag, cr, tx); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3480 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3481 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3482 |
spa_history_internal_log(LOG_DS_USER_RELEASE, |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3483 |
dp->dp_spa, tx, cr, "<%s> %lld dataset = %llu", |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3484 |
ra->htag, (longlong_t)refs, dsobj); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3485 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3486 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3487 |
static int |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3488 |
dsl_dataset_user_release_one(char *dsname, void *arg) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3489 |
{ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3490 |
struct dsl_ds_holdarg *ha = arg; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3491 |
struct dsl_ds_releasearg *ra; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3492 |
dsl_dataset_t *ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3493 |
int error; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3494 |
void *dtag = ha->dstg; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3495 |
char *name; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3496 |
boolean_t own = B_FALSE; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3497 |
boolean_t might_destroy; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3498 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3499 |
/* alloc a buffer to hold dsname@snapname, plus the terminating NULL */ |
10272
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
3500 |
name = kmem_asprintf("%s@%s", dsname, ha->snapname); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3501 |
error = dsl_dataset_hold(name, dtag, &ds); |
10272
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
3502 |
strfree(name); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3503 |
if (error == ENOENT && ha->recursive) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3504 |
return (0); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3505 |
(void) strcpy(ha->failed, dsname); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3506 |
if (error) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3507 |
return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3508 |
|
10268
cb380b2e9410
6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot
Chris Kirby <chris.kirby@sun.com>
parents:
10242
diff
changeset
|
3509 |
ha->gotone = B_TRUE; |
cb380b2e9410
6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot
Chris Kirby <chris.kirby@sun.com>
parents:
10242
diff
changeset
|
3510 |
|
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3511 |
ASSERT(dsl_dataset_is_snapshot(ds)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3512 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3513 |
error = dsl_dataset_release_might_destroy(ds, ha->htag, &might_destroy); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3514 |
if (error) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3515 |
dsl_dataset_rele(ds, dtag); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3516 |
return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3517 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3518 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3519 |
if (might_destroy) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3520 |
#ifdef _KERNEL |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3521 |
error = zfs_unmount_snap(name, NULL); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3522 |
if (error) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3523 |
dsl_dataset_rele(ds, dtag); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3524 |
return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3525 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3526 |
#endif |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3527 |
if (!dsl_dataset_tryown(ds, B_TRUE, dtag)) { |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3528 |
dsl_dataset_rele(ds, dtag); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3529 |
return (EBUSY); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3530 |
} else { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3531 |
own = B_TRUE; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3532 |
dsl_dataset_make_exclusive(ds, dtag); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3533 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3534 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3535 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3536 |
ra = kmem_alloc(sizeof (struct dsl_ds_releasearg), KM_SLEEP); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3537 |
ra->ds = ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3538 |
ra->htag = ha->htag; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3539 |
ra->own = own; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3540 |
dsl_sync_task_create(ha->dstg, dsl_dataset_user_release_check, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3541 |
dsl_dataset_user_release_sync, ra, dtag, 0); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3542 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3543 |
return (0); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3544 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3545 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3546 |
int |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3547 |
dsl_dataset_user_release(char *dsname, char *snapname, char *htag, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3548 |
boolean_t recursive) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3549 |
{ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3550 |
struct dsl_ds_holdarg *ha; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3551 |
dsl_sync_task_t *dst; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3552 |
spa_t *spa; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3553 |
int error; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3554 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3555 |
ha = kmem_zalloc(sizeof (struct dsl_ds_holdarg), KM_SLEEP); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3556 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3557 |
(void) strlcpy(ha->failed, dsname, sizeof (ha->failed)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3558 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3559 |
error = spa_open(dsname, &spa, FTAG); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3560 |
if (error) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3561 |
kmem_free(ha, sizeof (struct dsl_ds_holdarg)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3562 |
return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3563 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3564 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3565 |
ha->dstg = dsl_sync_task_group_create(spa_get_dsl(spa)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3566 |
ha->htag = htag; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3567 |
ha->snapname = snapname; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3568 |
ha->recursive = recursive; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3569 |
if (recursive) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3570 |
error = dmu_objset_find(dsname, dsl_dataset_user_release_one, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3571 |
ha, DS_FIND_CHILDREN); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3572 |
} else { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3573 |
error = dsl_dataset_user_release_one(dsname, ha); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3574 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3575 |
if (error == 0) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3576 |
error = dsl_sync_task_group_wait(ha->dstg); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3577 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3578 |
for (dst = list_head(&ha->dstg->dstg_tasks); dst; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3579 |
dst = list_next(&ha->dstg->dstg_tasks, dst)) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3580 |
struct dsl_ds_releasearg *ra = dst->dst_arg1; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3581 |
dsl_dataset_t *ds = ra->ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3582 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3583 |
if (dst->dst_err) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3584 |
dsl_dataset_name(ds, ha->failed); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3585 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3586 |
if (ra->own) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3587 |
dsl_dataset_disown(ds, ha->dstg); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3588 |
else |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3589 |
dsl_dataset_rele(ds, ha->dstg); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3590 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3591 |
kmem_free(ra, sizeof (struct dsl_ds_releasearg)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3592 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3593 |
|
10268
cb380b2e9410
6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot
Chris Kirby <chris.kirby@sun.com>
parents:
10242
diff
changeset
|
3594 |
if (error == 0 && recursive && !ha->gotone) |
cb380b2e9410
6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot
Chris Kirby <chris.kirby@sun.com>
parents:
10242
diff
changeset
|
3595 |
error = ENOENT; |
cb380b2e9410
6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot
Chris Kirby <chris.kirby@sun.com>
parents:
10242
diff
changeset
|
3596 |
|
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3597 |
if (error) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3598 |
(void) strcpy(dsname, ha->failed); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3599 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3600 |
dsl_sync_task_group_destroy(ha->dstg); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3601 |
kmem_free(ha, sizeof (struct dsl_ds_holdarg)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3602 |
spa_close(spa, FTAG); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3603 |
return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3604 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3605 |
|
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3606 |
/* |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3607 |
* Called at spa_load time to release a stale temporary user hold. |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3608 |
*/ |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3609 |
int |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3610 |
dsl_dataset_user_release_tmp(dsl_pool_t *dp, uint64_t dsobj, char *htag) |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3611 |
{ |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3612 |
dsl_dataset_t *ds; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3613 |
char *snap; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3614 |
char *name; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3615 |
int namelen; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3616 |
int error; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3617 |
|
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3618 |
rw_enter(&dp->dp_config_rwlock, RW_READER); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3619 |
error = dsl_dataset_hold_obj(dp, dsobj, FTAG, &ds); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3620 |
rw_exit(&dp->dp_config_rwlock); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3621 |
if (error) |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3622 |
return (error); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3623 |
namelen = dsl_dataset_namelen(ds)+1; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3624 |
name = kmem_alloc(namelen, KM_SLEEP); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3625 |
dsl_dataset_name(ds, name); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3626 |
dsl_dataset_rele(ds, FTAG); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3627 |
|
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3628 |
snap = strchr(name, '@'); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3629 |
*snap = '\0'; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3630 |
++snap; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3631 |
return (dsl_dataset_user_release(name, snap, htag, B_FALSE)); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3632 |
} |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3633 |
|
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3634 |
int |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3635 |
dsl_dataset_get_holds(const char *dsname, nvlist_t **nvp) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3636 |
{ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3637 |
dsl_dataset_t *ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3638 |
int err; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3639 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3640 |
err = dsl_dataset_hold(dsname, FTAG, &ds); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3641 |
if (err) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3642 |
return (err); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3643 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3644 |
VERIFY(0 == nvlist_alloc(nvp, NV_UNIQUE_NAME, KM_SLEEP)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3645 |
if (ds->ds_phys->ds_userrefs_obj != 0) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3646 |
zap_attribute_t *za; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3647 |
zap_cursor_t zc; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3648 |
|
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3649 |
za = kmem_alloc(sizeof (zap_attribute_t), KM_SLEEP); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3650 |
for (zap_cursor_init(&zc, ds->ds_dir->dd_pool->dp_meta_objset, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3651 |
ds->ds_phys->ds_userrefs_obj); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3652 |
zap_cursor_retrieve(&zc, za) == 0; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3653 |
zap_cursor_advance(&zc)) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3654 |
VERIFY(0 == nvlist_add_uint64(*nvp, za->za_name, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3655 |
za->za_first_integer)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3656 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3657 |
zap_cursor_fini(&zc); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3658 |
kmem_free(za, sizeof (zap_attribute_t)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3659 |
} |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3660 |
dsl_dataset_rele(ds, FTAG); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3661 |
return (0); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3662 |
} |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3663 |
|
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3664 |
/* |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3665 |
* Note, this fuction is used as the callback for dmu_objset_find(). We |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3666 |
* always return 0 so that we will continue to find and process |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3667 |
* inconsistent datasets, even if we encounter an error trying to |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3668 |
* process one of them. |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3669 |
*/ |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3670 |
/* ARGSUSED */ |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3671 |
int |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3672 |
dsl_destroy_inconsistent(char *dsname, void *arg) |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3673 |
{ |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3674 |
dsl_dataset_t *ds; |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3675 |
|
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3676 |
if (dsl_dataset_own(dsname, B_TRUE, FTAG, &ds) == 0) { |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3677 |
if (DS_IS_INCONSISTENT(ds)) |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3678 |
(void) dsl_dataset_destroy(ds, FTAG, B_FALSE); |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3679 |
else |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3680 |
dsl_dataset_disown(ds, FTAG); |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3681 |
} |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3682 |
return (0); |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3683 |
} |