author | Matthew Ahrens <Matthew.Ahrens@Sun.COM> |
Fri, 22 Aug 2008 10:29:35 -0700 | |
changeset 7390 | 6d408f0a5fbd |
parent 7385 | f69ff8507427 |
child 7525 | d29843e8f8a1 |
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 2008 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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27 |
#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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33 |
#include <sys/arc.h> |
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34 |
#include <sys/zio.h> |
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35 |
#include <sys/zap.h> |
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36 |
#include <sys/unique.h> |
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37 |
#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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static char *dsl_reaper = "the grim reaper"; |
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static dsl_checkfunc_t dsl_dataset_destroy_begin_check; |
46 |
static dsl_syncfunc_t dsl_dataset_destroy_begin_sync; |
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47 |
static dsl_checkfunc_t dsl_dataset_rollback_check; |
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static dsl_syncfunc_t dsl_dataset_rollback_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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} |
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void |
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79 |
dsl_dataset_block_born(dsl_dataset_t *ds, blkptr_t *bp, dmu_tx_t *tx) |
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80 |
{ |
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int used = bp_get_dasize(tx->tx_pool->dp_spa, bp); |
789 | 82 |
int compressed = BP_GET_PSIZE(bp); |
83 |
int uncompressed = BP_GET_UCSIZE(bp); |
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int64_t delta; |
789 | 85 |
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dprintf_bp(bp, "born, ds=%p\n", ds); |
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88 |
ASSERT(dmu_tx_is_syncing(tx)); |
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89 |
/* It could have been compressed away to nothing */ |
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if (BP_IS_HOLE(bp)) |
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return; |
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92 |
ASSERT(BP_GET_TYPE(bp) != DMU_OT_NONE); |
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ASSERT3U(BP_GET_TYPE(bp), <, DMU_OT_NUMTYPES); |
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94 |
if (ds == NULL) { |
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/* |
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* Account for the meta-objset space in its placeholder |
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* dsl_dir. |
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*/ |
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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 | 101 |
used, compressed, uncompressed, tx); |
102 |
dsl_dir_dirty(tx->tx_pool->dp_mos_dir, tx); |
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103 |
return; |
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104 |
} |
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105 |
dmu_buf_will_dirty(ds->ds_dbuf, tx); |
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mutex_enter(&ds->ds_lock); |
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delta = parent_delta(ds, used); |
789 | 108 |
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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111 |
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); |
789 | 117 |
} |
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6992 | 119 |
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 | 122 |
{ |
2082 | 123 |
int used = bp_get_dasize(tx->tx_pool->dp_spa, bp); |
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int compressed = BP_GET_PSIZE(bp); |
125 |
int uncompressed = BP_GET_UCSIZE(bp); |
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126 |
||
127 |
ASSERT(dmu_tx_is_syncing(tx)); |
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/* No block pointer => nothing to free */ |
789 | 129 |
if (BP_IS_HOLE(bp)) |
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return (0); |
789 | 131 |
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132 |
ASSERT(used > 0); |
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if (ds == NULL) { |
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int err; |
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/* |
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* 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, pio ? ARC_NOWAIT: ARC_WAIT); |
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ASSERT(err == 0); |
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dsl_dir_diduse_space(tx->tx_pool->dp_mos_dir, DD_USED_HEAD, |
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-used, -compressed, -uncompressed, tx); |
145 |
dsl_dir_dirty(tx->tx_pool->dp_mos_dir, tx); |
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6992 | 146 |
return (used); |
789 | 147 |
} |
148 |
ASSERT3P(tx->tx_pool, ==, ds->ds_dir->dd_pool); |
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ASSERT(!dsl_dataset_is_snapshot(ds)); |
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dmu_buf_will_dirty(ds->ds_dbuf, tx); |
152 |
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153 |
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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156 |
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789 | 157 |
dprintf_bp(bp, "freeing: %s", ""); |
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158 |
err = dsl_free(pio, tx->tx_pool, |
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tx->tx_txg, bp, NULL, NULL, pio ? ARC_NOWAIT : ARC_WAIT); |
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160 |
ASSERT(err == 0); |
789 | 161 |
|
162 |
mutex_enter(&ds->ds_lock); |
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ASSERT(ds->ds_phys->ds_unique_bytes >= used || |
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164 |
!DS_UNIQUE_IS_ACCURATE(ds)); |
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165 |
delta = parent_delta(ds, -used); |
789 | 166 |
ds->ds_phys->ds_unique_bytes -= used; |
167 |
mutex_exit(&ds->ds_lock); |
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168 |
dsl_dir_diduse_space(ds->ds_dir, DD_USED_HEAD, |
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delta, -compressed, -uncompressed, tx); |
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dsl_dir_transfer_space(ds->ds_dir, -used - delta, |
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171 |
DD_USED_REFRSRV, DD_USED_HEAD, tx); |
789 | 172 |
} else { |
173 |
dprintf_bp(bp, "putting on dead list: %s", ""); |
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1544 | 174 |
VERIFY(0 == bplist_enqueue(&ds->ds_deadlist, bp, tx)); |
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ASSERT3U(ds->ds_prev->ds_object, ==, |
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ds->ds_phys->ds_prev_snap_obj); |
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177 |
ASSERT(ds->ds_prev->ds_phys->ds_num_children > 0); |
789 | 178 |
/* if (bp->blk_birth > prev prev snap txg) prev unique += bs */ |
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if (ds->ds_prev->ds_phys->ds_next_snap_obj == |
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ds->ds_object && bp->blk_birth > |
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ds->ds_prev->ds_phys->ds_prev_snap_txg) { |
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dmu_buf_will_dirty(ds->ds_prev->ds_dbuf, tx); |
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183 |
mutex_enter(&ds->ds_prev->ds_lock); |
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ds->ds_prev->ds_phys->ds_unique_bytes += used; |
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185 |
mutex_exit(&ds->ds_prev->ds_lock); |
789 | 186 |
} |
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if (bp->blk_birth > ds->ds_origin_txg) { |
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dsl_dir_transfer_space(ds->ds_dir, used, |
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DD_USED_HEAD, DD_USED_SNAP, tx); |
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190 |
} |
789 | 191 |
} |
192 |
mutex_enter(&ds->ds_lock); |
|
193 |
ASSERT3U(ds->ds_phys->ds_used_bytes, >=, used); |
|
194 |
ds->ds_phys->ds_used_bytes -= used; |
|
195 |
ASSERT3U(ds->ds_phys->ds_compressed_bytes, >=, compressed); |
|
196 |
ds->ds_phys->ds_compressed_bytes -= compressed; |
|
197 |
ASSERT3U(ds->ds_phys->ds_uncompressed_bytes, >=, uncompressed); |
|
198 |
ds->ds_phys->ds_uncompressed_bytes -= uncompressed; |
|
199 |
mutex_exit(&ds->ds_lock); |
|
6992 | 200 |
|
201 |
return (used); |
|
789 | 202 |
} |
203 |
||
1544 | 204 |
uint64_t |
205 |
dsl_dataset_prev_snap_txg(dsl_dataset_t *ds) |
|
789 | 206 |
{ |
2885 | 207 |
uint64_t trysnap = 0; |
208 |
||
789 | 209 |
if (ds == NULL) |
1544 | 210 |
return (0); |
789 | 211 |
/* |
212 |
* The snapshot creation could fail, but that would cause an |
|
213 |
* incorrect FALSE return, which would only result in an |
|
214 |
* overestimation of the amount of space that an operation would |
|
215 |
* consume, which is OK. |
|
216 |
* |
|
217 |
* There's also a small window where we could miss a pending |
|
218 |
* snapshot, because we could set the sync task in the quiescing |
|
219 |
* phase. So this should only be used as a guess. |
|
220 |
*/ |
|
2885 | 221 |
if (ds->ds_trysnap_txg > |
222 |
spa_last_synced_txg(ds->ds_dir->dd_pool->dp_spa)) |
|
223 |
trysnap = ds->ds_trysnap_txg; |
|
224 |
return (MAX(ds->ds_phys->ds_prev_snap_txg, trysnap)); |
|
1544 | 225 |
} |
226 |
||
227 |
int |
|
228 |
dsl_dataset_block_freeable(dsl_dataset_t *ds, uint64_t blk_birth) |
|
229 |
{ |
|
230 |
return (blk_birth > dsl_dataset_prev_snap_txg(ds)); |
|
789 | 231 |
} |
232 |
||
233 |
/* ARGSUSED */ |
|
234 |
static void |
|
235 |
dsl_dataset_evict(dmu_buf_t *db, void *dsv) |
|
236 |
{ |
|
237 |
dsl_dataset_t *ds = dsv; |
|
238 |
||
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|
239 |
ASSERT(ds->ds_owner == NULL || DSL_DATASET_IS_DESTROYED(ds)); |
789 | 240 |
|
241 |
dprintf_ds(ds, "evicting %s\n", ""); |
|
242 |
||
4787 | 243 |
unique_remove(ds->ds_fsid_guid); |
789 | 244 |
|
245 |
if (ds->ds_user_ptr != NULL) |
|
246 |
ds->ds_user_evict_func(ds, ds->ds_user_ptr); |
|
247 |
||
248 |
if (ds->ds_prev) { |
|
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|
249 |
dsl_dataset_drop_ref(ds->ds_prev, ds); |
789 | 250 |
ds->ds_prev = NULL; |
251 |
} |
|
252 |
||
253 |
bplist_close(&ds->ds_deadlist); |
|
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|
254 |
if (ds->ds_dir) |
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|
255 |
dsl_dir_close(ds->ds_dir, ds); |
789 | 256 |
|
4787 | 257 |
ASSERT(!list_link_active(&ds->ds_synced_link)); |
789 | 258 |
|
2856 | 259 |
mutex_destroy(&ds->ds_lock); |
4787 | 260 |
mutex_destroy(&ds->ds_opening_lock); |
2856 | 261 |
mutex_destroy(&ds->ds_deadlist.bpl_lock); |
6689
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|
262 |
rw_destroy(&ds->ds_rwlock); |
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|
263 |
cv_destroy(&ds->ds_exclusive_cv); |
2856 | 264 |
|
789 | 265 |
kmem_free(ds, sizeof (dsl_dataset_t)); |
266 |
} |
|
267 |
||
1544 | 268 |
static int |
789 | 269 |
dsl_dataset_get_snapname(dsl_dataset_t *ds) |
270 |
{ |
|
271 |
dsl_dataset_phys_t *headphys; |
|
272 |
int err; |
|
273 |
dmu_buf_t *headdbuf; |
|
274 |
dsl_pool_t *dp = ds->ds_dir->dd_pool; |
|
275 |
objset_t *mos = dp->dp_meta_objset; |
|
276 |
||
277 |
if (ds->ds_snapname[0]) |
|
1544 | 278 |
return (0); |
789 | 279 |
if (ds->ds_phys->ds_next_snap_obj == 0) |
1544 | 280 |
return (0); |
789 | 281 |
|
1544 | 282 |
err = dmu_bonus_hold(mos, ds->ds_dir->dd_phys->dd_head_dataset_obj, |
283 |
FTAG, &headdbuf); |
|
284 |
if (err) |
|
285 |
return (err); |
|
789 | 286 |
headphys = headdbuf->db_data; |
287 |
err = zap_value_search(dp->dp_meta_objset, |
|
4577 | 288 |
headphys->ds_snapnames_zapobj, ds->ds_object, 0, ds->ds_snapname); |
1544 | 289 |
dmu_buf_rele(headdbuf, FTAG); |
290 |
return (err); |
|
789 | 291 |
} |
292 |
||
6492
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|
293 |
static int |
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|
294 |
dsl_dataset_snap_lookup(dsl_dataset_t *ds, const char *name, uint64_t *value) |
6492
903545192033
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|
295 |
{ |
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|
296 |
objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; |
47572a2f5e73
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|
297 |
uint64_t snapobj = ds->ds_phys->ds_snapnames_zapobj; |
6492
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|
298 |
matchtype_t mt; |
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|
299 |
int err; |
903545192033
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changeset
|
300 |
|
6689
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changeset
|
301 |
if (ds->ds_phys->ds_flags & DS_FLAG_CI_DATASET) |
6492
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|
302 |
mt = MT_FIRST; |
903545192033
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diff
changeset
|
303 |
else |
903545192033
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diff
changeset
|
304 |
mt = MT_EXACT; |
903545192033
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timh
parents:
6047
diff
changeset
|
305 |
|
6689
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diff
changeset
|
306 |
err = zap_lookup_norm(mos, snapobj, name, 8, 1, |
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
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parents:
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diff
changeset
|
307 |
value, mt, NULL, 0, NULL); |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
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parents:
6047
diff
changeset
|
308 |
if (err == ENOTSUP && mt == MT_FIRST) |
6689
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diff
changeset
|
309 |
err = zap_lookup(mos, snapobj, name, 8, 1, value); |
6492
903545192033
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parents:
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diff
changeset
|
310 |
return (err); |
903545192033
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timh
parents:
6047
diff
changeset
|
311 |
} |
903545192033
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timh
parents:
6047
diff
changeset
|
312 |
|
903545192033
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parents:
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diff
changeset
|
313 |
static int |
6689
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diff
changeset
|
314 |
dsl_dataset_snap_remove(dsl_dataset_t *ds, char *name, dmu_tx_t *tx) |
6492
903545192033
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timh
parents:
6047
diff
changeset
|
315 |
{ |
6689
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parents:
6643
diff
changeset
|
316 |
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
|
317 |
uint64_t snapobj = ds->ds_phys->ds_snapnames_zapobj; |
6492
903545192033
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timh
parents:
6047
diff
changeset
|
318 |
matchtype_t mt; |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
319 |
int err; |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
320 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
321 |
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
|
322 |
mt = MT_FIRST; |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
323 |
else |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
324 |
mt = MT_EXACT; |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
325 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
326 |
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
|
327 |
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
|
328 |
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
|
329 |
return (err); |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
330 |
} |
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
331 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
332 |
static int |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
333 |
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
|
334 |
dsl_dataset_t **dsp) |
789 | 335 |
{ |
336 |
objset_t *mos = dp->dp_meta_objset; |
|
337 |
dmu_buf_t *dbuf; |
|
338 |
dsl_dataset_t *ds; |
|
1544 | 339 |
int err; |
789 | 340 |
|
341 |
ASSERT(RW_LOCK_HELD(&dp->dp_config_rwlock) || |
|
342 |
dsl_pool_sync_context(dp)); |
|
343 |
||
1544 | 344 |
err = dmu_bonus_hold(mos, dsobj, tag, &dbuf); |
345 |
if (err) |
|
346 |
return (err); |
|
789 | 347 |
ds = dmu_buf_get_user(dbuf); |
348 |
if (ds == NULL) { |
|
349 |
dsl_dataset_t *winner; |
|
350 |
||
351 |
ds = kmem_zalloc(sizeof (dsl_dataset_t), KM_SLEEP); |
|
352 |
ds->ds_dbuf = dbuf; |
|
353 |
ds->ds_object = dsobj; |
|
354 |
ds->ds_phys = dbuf->db_data; |
|
355 |
||
2856 | 356 |
mutex_init(&ds->ds_lock, NULL, MUTEX_DEFAULT, NULL); |
4787 | 357 |
mutex_init(&ds->ds_opening_lock, NULL, MUTEX_DEFAULT, NULL); |
2856 | 358 |
mutex_init(&ds->ds_deadlist.bpl_lock, NULL, MUTEX_DEFAULT, |
359 |
NULL); |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
360 |
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
|
361 |
cv_init(&ds->ds_exclusive_cv, NULL, CV_DEFAULT, NULL); |
2856 | 362 |
|
1544 | 363 |
err = bplist_open(&ds->ds_deadlist, |
789 | 364 |
mos, ds->ds_phys->ds_deadlist_obj); |
1544 | 365 |
if (err == 0) { |
366 |
err = dsl_dir_open_obj(dp, |
|
367 |
ds->ds_phys->ds_dir_obj, NULL, ds, &ds->ds_dir); |
|
368 |
} |
|
369 |
if (err) { |
|
370 |
/* |
|
371 |
* we don't really need to close the blist if we |
|
372 |
* just opened it. |
|
373 |
*/ |
|
2856 | 374 |
mutex_destroy(&ds->ds_lock); |
4787 | 375 |
mutex_destroy(&ds->ds_opening_lock); |
2856 | 376 |
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
|
377 |
rw_destroy(&ds->ds_rwlock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
378 |
cv_destroy(&ds->ds_exclusive_cv); |
1544 | 379 |
kmem_free(ds, sizeof (dsl_dataset_t)); |
380 |
dmu_buf_rele(dbuf, tag); |
|
381 |
return (err); |
|
382 |
} |
|
789 | 383 |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
384 |
if (!dsl_dataset_is_snapshot(ds)) { |
789 | 385 |
ds->ds_snapname[0] = '\0'; |
386 |
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
|
387 |
err = dsl_dataset_get_ref(dp, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
388 |
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
|
389 |
ds, &ds->ds_prev); |
789 | 390 |
} |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
391 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
392 |
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
|
393 |
dsl_dataset_t *origin; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
394 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
395 |
err = dsl_dataset_hold_obj(dp, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
396 |
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
|
397 |
FTAG, &origin); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
398 |
if (err == 0) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
399 |
ds->ds_origin_txg = |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
400 |
origin->ds_phys->ds_creation_txg; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
401 |
dsl_dataset_rele(origin, FTAG); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
402 |
} |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
403 |
} |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
404 |
} else if (zfs_flags & ZFS_DEBUG_SNAPNAMES) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
405 |
err = dsl_dataset_get_snapname(ds); |
789 | 406 |
} |
407 |
||
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
408 |
if (err == 0 && !dsl_dataset_is_snapshot(ds)) { |
5569
d3caac36d311
6634062 dsl_dataset_open_obj misuses RW_LOCK_HELD
ck153898
parents:
5518
diff
changeset
|
409 |
/* |
d3caac36d311
6634062 dsl_dataset_open_obj misuses RW_LOCK_HELD
ck153898
parents:
5518
diff
changeset
|
410 |
* 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
|
411 |
* 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
|
412 |
* we're always called with the read lock held. |
d3caac36d311
6634062 dsl_dataset_open_obj misuses RW_LOCK_HELD
ck153898
parents:
5518
diff
changeset
|
413 |
*/ |
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
|
414 |
boolean_t need_lock = |
5569
d3caac36d311
6634062 dsl_dataset_open_obj misuses RW_LOCK_HELD
ck153898
parents:
5518
diff
changeset
|
415 |
!RW_WRITE_HELD(&dp->dp_config_rwlock) && |
d3caac36d311
6634062 dsl_dataset_open_obj misuses RW_LOCK_HELD
ck153898
parents:
5518
diff
changeset
|
416 |
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
|
417 |
|
e140313199cc
6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d
ck153898
parents:
5446
diff
changeset
|
418 |
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
|
419 |
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
|
420 |
|
7265 | 421 |
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
|
422 |
"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
|
423 |
&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
|
424 |
if (err == 0) { |
7265 | 425 |
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
|
426 |
"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
|
427 |
&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
|
428 |
} |
e140313199cc
6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d
ck153898
parents:
5446
diff
changeset
|
429 |
|
e140313199cc
6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d
ck153898
parents:
5446
diff
changeset
|
430 |
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
|
431 |
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
|
432 |
} 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
|
433 |
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
|
434 |
} |
e140313199cc
6626338 assertion failed: 0 == dsl_prop_get_ds_locked(ds->ds_dir, "refreservation", sizeof (uint64_t), 1, &d
ck153898
parents:
5446
diff
changeset
|
435 |
|
1544 | 436 |
if (err == 0) { |
437 |
winner = dmu_buf_set_user_ie(dbuf, ds, &ds->ds_phys, |
|
438 |
dsl_dataset_evict); |
|
439 |
} |
|
440 |
if (err || winner) { |
|
789 | 441 |
bplist_close(&ds->ds_deadlist); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
442 |
if (ds->ds_prev) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
443 |
dsl_dataset_drop_ref(ds->ds_prev, ds); |
789 | 444 |
dsl_dir_close(ds->ds_dir, ds); |
2856 | 445 |
mutex_destroy(&ds->ds_lock); |
4787 | 446 |
mutex_destroy(&ds->ds_opening_lock); |
2856 | 447 |
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
|
448 |
rw_destroy(&ds->ds_rwlock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
449 |
cv_destroy(&ds->ds_exclusive_cv); |
789 | 450 |
kmem_free(ds, sizeof (dsl_dataset_t)); |
1544 | 451 |
if (err) { |
452 |
dmu_buf_rele(dbuf, tag); |
|
453 |
return (err); |
|
454 |
} |
|
789 | 455 |
ds = winner; |
456 |
} else { |
|
4787 | 457 |
ds->ds_fsid_guid = |
789 | 458 |
unique_insert(ds->ds_phys->ds_fsid_guid); |
459 |
} |
|
460 |
} |
|
461 |
ASSERT3P(ds->ds_dbuf, ==, dbuf); |
|
462 |
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
|
463 |
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
|
464 |
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
|
465 |
dp->dp_origin_snap == NULL || ds == dp->dp_origin_snap); |
789 | 466 |
mutex_enter(&ds->ds_lock); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
467 |
if (!dsl_pool_sync_context(dp) && DSL_DATASET_IS_DESTROYED(ds)) { |
789 | 468 |
mutex_exit(&ds->ds_lock); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
469 |
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
|
470 |
return (ENOENT); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
471 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
472 |
mutex_exit(&ds->ds_lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
473 |
*dsp = ds; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
474 |
return (0); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
475 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
476 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
477 |
static int |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
478 |
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
|
479 |
{ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
480 |
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
|
481 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
482 |
/* |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
483 |
* 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
|
484 |
* 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
|
485 |
* 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
|
486 |
* 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
|
487 |
* doing anything while we are active. |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
488 |
*/ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
489 |
if (dsl_pool_sync_context(dp)) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
490 |
ASSERT(!DSL_DATASET_IS_DESTROYED(ds)); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
491 |
return (0); |
789 | 492 |
} |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
493 |
|
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 |
* 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
|
496 |
* 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
|
497 |
* 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
|
498 |
* |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
499 |
* 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
|
500 |
* 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
|
501 |
* 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
|
502 |
* 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
|
503 |
* 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
|
504 |
* the dataset is determined. |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
505 |
*/ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
506 |
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
|
507 |
mutex_enter(&ds->ds_lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
508 |
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
|
509 |
rw_exit(&dp->dp_config_rwlock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
510 |
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
|
511 |
if (DSL_DATASET_IS_DESTROYED(ds)) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
512 |
mutex_exit(&ds->ds_lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
513 |
dsl_dataset_drop_ref(ds, tag); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
514 |
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
|
515 |
return (ENOENT); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
516 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
517 |
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
|
518 |
} |
789 | 519 |
mutex_exit(&ds->ds_lock); |
1544 | 520 |
return (0); |
789 | 521 |
} |
522 |
||
523 |
int |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
524 |
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
|
525 |
dsl_dataset_t **dsp) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
526 |
{ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
527 |
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
|
528 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
529 |
if (err) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
530 |
return (err); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
531 |
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
|
532 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
533 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
534 |
int |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
535 |
dsl_dataset_own_obj(dsl_pool_t *dp, uint64_t dsobj, int flags, void *owner, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
536 |
dsl_dataset_t **dsp) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
537 |
{ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
538 |
int err = dsl_dataset_hold_obj(dp, dsobj, owner, dsp); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
539 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
540 |
ASSERT(DS_MODE_TYPE(flags) != DS_MODE_USER); |
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 |
if (err) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
543 |
return (err); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
544 |
if (!dsl_dataset_tryown(*dsp, DS_MODE_IS_INCONSISTENT(flags), owner)) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
545 |
dsl_dataset_rele(*dsp, owner); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
546 |
return (EBUSY); |
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 |
return (0); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
549 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
550 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
551 |
int |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
552 |
dsl_dataset_hold(const char *name, void *tag, dsl_dataset_t **dsp) |
789 | 553 |
{ |
554 |
dsl_dir_t *dd; |
|
555 |
dsl_pool_t *dp; |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
556 |
const char *snapname; |
789 | 557 |
uint64_t obj; |
558 |
int err = 0; |
|
559 |
||
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
560 |
err = dsl_dir_open_spa(NULL, name, FTAG, &dd, &snapname); |
1544 | 561 |
if (err) |
562 |
return (err); |
|
789 | 563 |
|
564 |
dp = dd->dd_pool; |
|
565 |
obj = dd->dd_phys->dd_head_dataset_obj; |
|
566 |
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
|
567 |
if (obj) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
568 |
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
|
569 |
else |
789 | 570 |
err = ENOENT; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
571 |
if (err) |
789 | 572 |
goto out; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
573 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
574 |
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
|
575 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
576 |
/* 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
|
577 |
if (err == 0 && snapname != NULL) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
578 |
dsl_dataset_t *ds = NULL; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
579 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
580 |
if (*snapname++ != '@') { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
581 |
dsl_dataset_rele(*dsp, tag); |
789 | 582 |
err = ENOENT; |
583 |
goto out; |
|
584 |
} |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
585 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
586 |
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
|
587 |
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
|
588 |
if (err == 0) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
589 |
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
|
590 |
dsl_dataset_rele(*dsp, tag); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
591 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
592 |
ASSERT3U((err == 0), ==, (ds != NULL)); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
593 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
594 |
if (ds) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
595 |
mutex_enter(&ds->ds_lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
596 |
if (ds->ds_snapname[0] == 0) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
597 |
(void) strlcpy(ds->ds_snapname, snapname, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
598 |
sizeof (ds->ds_snapname)); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
599 |
mutex_exit(&ds->ds_lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
600 |
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
|
601 |
*dsp = err ? NULL : ds; |
789 | 602 |
} |
603 |
} |
|
604 |
out: |
|
605 |
rw_exit(&dp->dp_config_rwlock); |
|
606 |
dsl_dir_close(dd, FTAG); |
|
607 |
return (err); |
|
608 |
} |
|
609 |
||
610 |
int |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
611 |
dsl_dataset_own(const char *name, int flags, void *owner, dsl_dataset_t **dsp) |
789 | 612 |
{ |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
613 |
int err = dsl_dataset_hold(name, owner, dsp); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
614 |
if (err) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
615 |
return (err); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
616 |
if ((*dsp)->ds_phys->ds_num_children > 0 && |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
617 |
!DS_MODE_IS_READONLY(flags)) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
618 |
dsl_dataset_rele(*dsp, owner); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
619 |
return (EROFS); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
620 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
621 |
if (!dsl_dataset_tryown(*dsp, DS_MODE_IS_INCONSISTENT(flags), owner)) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
622 |
dsl_dataset_rele(*dsp, owner); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
623 |
return (EBUSY); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
624 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
625 |
return (0); |
789 | 626 |
} |
627 |
||
628 |
void |
|
629 |
dsl_dataset_name(dsl_dataset_t *ds, char *name) |
|
630 |
{ |
|
631 |
if (ds == NULL) { |
|
632 |
(void) strcpy(name, "mos"); |
|
633 |
} else { |
|
634 |
dsl_dir_name(ds->ds_dir, name); |
|
1544 | 635 |
VERIFY(0 == dsl_dataset_get_snapname(ds)); |
789 | 636 |
if (ds->ds_snapname[0]) { |
637 |
(void) strcat(name, "@"); |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
638 |
/* |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
639 |
* 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
|
640 |
* 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
|
641 |
*/ |
789 | 642 |
if (!MUTEX_HELD(&ds->ds_lock)) { |
643 |
mutex_enter(&ds->ds_lock); |
|
644 |
(void) strcat(name, ds->ds_snapname); |
|
645 |
mutex_exit(&ds->ds_lock); |
|
646 |
} else { |
|
647 |
(void) strcat(name, ds->ds_snapname); |
|
648 |
} |
|
649 |
} |
|
650 |
} |
|
651 |
} |
|
652 |
||
3978
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
653 |
static int |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
654 |
dsl_dataset_namelen(dsl_dataset_t *ds) |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
655 |
{ |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
656 |
int result; |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
657 |
|
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
658 |
if (ds == NULL) { |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
659 |
result = 3; /* "mos" */ |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
660 |
} else { |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
661 |
result = dsl_dir_namelen(ds->ds_dir); |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
662 |
VERIFY(0 == dsl_dataset_get_snapname(ds)); |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
663 |
if (ds->ds_snapname[0]) { |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
664 |
++result; /* adding one for the @-sign */ |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
665 |
if (!MUTEX_HELD(&ds->ds_lock)) { |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
666 |
mutex_enter(&ds->ds_lock); |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
667 |
result += strlen(ds->ds_snapname); |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
668 |
mutex_exit(&ds->ds_lock); |
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 += strlen(ds->ds_snapname); |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
671 |
} |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
672 |
} |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
673 |
} |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
674 |
|
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
675 |
return (result); |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
676 |
} |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
677 |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
678 |
void |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
679 |
dsl_dataset_drop_ref(dsl_dataset_t *ds, void *tag) |
789 | 680 |
{ |
1544 | 681 |
dmu_buf_rele(ds->ds_dbuf, tag); |
789 | 682 |
} |
683 |
||
684 |
void |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
685 |
dsl_dataset_rele(dsl_dataset_t *ds, void *tag) |
5367 | 686 |
{ |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
687 |
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
|
688 |
rw_exit(&ds->ds_rwlock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
689 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
690 |
dsl_dataset_drop_ref(ds, tag); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
691 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
692 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
693 |
void |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
694 |
dsl_dataset_disown(dsl_dataset_t *ds, void *owner) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
695 |
{ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
696 |
ASSERT((ds->ds_owner == owner && ds->ds_dbuf) || |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
697 |
(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
|
698 |
|
5367 | 699 |
mutex_enter(&ds->ds_lock); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
700 |
ds->ds_owner = NULL; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
701 |
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
|
702 |
rw_exit(&ds->ds_rwlock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
703 |
cv_broadcast(&ds->ds_exclusive_cv); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
704 |
} |
5367 | 705 |
mutex_exit(&ds->ds_lock); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
706 |
if (ds->ds_dbuf) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
707 |
dsl_dataset_drop_ref(ds, owner); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
708 |
else |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
709 |
dsl_dataset_evict(ds->ds_dbuf, ds); |
5367 | 710 |
} |
711 |
||
712 |
boolean_t |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
713 |
dsl_dataset_tryown(dsl_dataset_t *ds, boolean_t inconsistentok, void *owner) |
5367 | 714 |
{ |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
715 |
boolean_t gotit = FALSE; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
716 |
|
5367 | 717 |
mutex_enter(&ds->ds_lock); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
718 |
if (ds->ds_owner == NULL && |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
719 |
(!DS_IS_INCONSISTENT(ds) || inconsistentok)) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
720 |
ds->ds_owner = owner; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
721 |
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
|
722 |
rw_exit(&ds->ds_rwlock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
723 |
gotit = TRUE; |
5367 | 724 |
} |
725 |
mutex_exit(&ds->ds_lock); |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
726 |
return (gotit); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
727 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
728 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
729 |
void |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
730 |
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
|
731 |
{ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
732 |
ASSERT3P(owner, ==, ds->ds_owner); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
733 |
if (!RW_WRITE_HELD(&ds->ds_rwlock)) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
734 |
rw_enter(&ds->ds_rwlock, RW_WRITER); |
5367 | 735 |
} |
736 |
||
2199 | 737 |
uint64_t |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
738 |
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
|
739 |
uint64_t flags, dmu_tx_t *tx) |
789 | 740 |
{ |
5367 | 741 |
dsl_pool_t *dp = dd->dd_pool; |
789 | 742 |
dmu_buf_t *dbuf; |
743 |
dsl_dataset_phys_t *dsphys; |
|
5367 | 744 |
uint64_t dsobj; |
789 | 745 |
objset_t *mos = dp->dp_meta_objset; |
746 |
||
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
747 |
if (origin == NULL) |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
748 |
origin = dp->dp_origin_snap; |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
749 |
|
5367 | 750 |
ASSERT(origin == NULL || origin->ds_dir->dd_pool == dp); |
751 |
ASSERT(origin == NULL || origin->ds_phys->ds_num_children > 0); |
|
789 | 752 |
ASSERT(dmu_tx_is_syncing(tx)); |
5367 | 753 |
ASSERT(dd->dd_phys->dd_head_dataset_obj == 0); |
789 | 754 |
|
928
36d72fe4da29
6349314 dmu_object_type names incorrect for DSL Directories and DSL Datasets
tabriz
parents:
885
diff
changeset
|
755 |
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
|
756 |
DMU_OT_DSL_DATASET, sizeof (dsl_dataset_phys_t), tx); |
1544 | 757 |
VERIFY(0 == dmu_bonus_hold(mos, dsobj, FTAG, &dbuf)); |
789 | 758 |
dmu_buf_will_dirty(dbuf, tx); |
759 |
dsphys = dbuf->db_data; |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
760 |
bzero(dsphys, sizeof (dsl_dataset_phys_t)); |
789 | 761 |
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
|
762 |
dsphys->ds_flags = flags; |
789 | 763 |
dsphys->ds_fsid_guid = unique_create(); |
764 |
(void) random_get_pseudo_bytes((void*)&dsphys->ds_guid, |
|
765 |
sizeof (dsphys->ds_guid)); |
|
766 |
dsphys->ds_snapnames_zapobj = |
|
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
767 |
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
|
768 |
DMU_OT_NONE, 0, tx); |
789 | 769 |
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
|
770 |
dsphys->ds_creation_txg = tx->tx_txg == TXG_INITIAL ? 1 : tx->tx_txg; |
789 | 771 |
dsphys->ds_deadlist_obj = |
772 |
bplist_create(mos, DSL_DEADLIST_BLOCKSIZE, tx); |
|
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
773 |
|
5367 | 774 |
if (origin) { |
775 |
dsphys->ds_prev_snap_obj = origin->ds_object; |
|
789 | 776 |
dsphys->ds_prev_snap_txg = |
5367 | 777 |
origin->ds_phys->ds_creation_txg; |
789 | 778 |
dsphys->ds_used_bytes = |
5367 | 779 |
origin->ds_phys->ds_used_bytes; |
789 | 780 |
dsphys->ds_compressed_bytes = |
5367 | 781 |
origin->ds_phys->ds_compressed_bytes; |
789 | 782 |
dsphys->ds_uncompressed_bytes = |
5367 | 783 |
origin->ds_phys->ds_uncompressed_bytes; |
784 |
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
|
785 |
dsphys->ds_flags |= origin->ds_phys->ds_flags; |
789 | 786 |
|
5367 | 787 |
dmu_buf_will_dirty(origin->ds_dbuf, tx); |
788 |
origin->ds_phys->ds_num_children++; |
|
789 | 789 |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
790 |
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
|
791 |
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
|
792 |
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
|
793 |
zap_create(mos, |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
794 |
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
|
795 |
} |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
796 |
VERIFY(0 == zap_add_int(mos, |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
797 |
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
|
798 |
dsobj, tx)); |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
799 |
} |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
800 |
|
789 | 801 |
dmu_buf_will_dirty(dd->dd_dbuf, tx); |
5367 | 802 |
dd->dd_phys->dd_origin_obj = origin->ds_object; |
789 | 803 |
} |
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
804 |
|
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
805 |
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
|
806 |
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
|
807 |
|
1544 | 808 |
dmu_buf_rele(dbuf, FTAG); |
789 | 809 |
|
810 |
dmu_buf_will_dirty(dd->dd_dbuf, tx); |
|
811 |
dd->dd_phys->dd_head_dataset_obj = dsobj; |
|
5367 | 812 |
|
813 |
return (dsobj); |
|
814 |
} |
|
815 |
||
816 |
uint64_t |
|
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
817 |
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
|
818 |
dsl_dataset_t *origin, uint64_t flags, cred_t *cr, dmu_tx_t *tx) |
5367 | 819 |
{ |
820 |
dsl_pool_t *dp = pdd->dd_pool; |
|
821 |
uint64_t dsobj, ddobj; |
|
822 |
dsl_dir_t *dd; |
|
823 |
||
824 |
ASSERT(lastname[0] != '@'); |
|
825 |
||
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
826 |
ddobj = dsl_dir_create_sync(dp, pdd, lastname, tx); |
5367 | 827 |
VERIFY(0 == dsl_dir_open_obj(dp, ddobj, lastname, FTAG, &dd)); |
828 |
||
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
829 |
dsobj = dsl_dataset_create_sync_dd(dd, origin, flags, tx); |
5367 | 830 |
|
831 |
dsl_deleg_set_create_perms(dd, tx, cr); |
|
832 |
||
789 | 833 |
dsl_dir_close(dd, FTAG); |
834 |
||
2199 | 835 |
return (dsobj); |
836 |
} |
|
837 |
||
838 |
struct destroyarg { |
|
839 |
dsl_sync_task_group_t *dstg; |
|
840 |
char *snapname; |
|
841 |
char *failed; |
|
842 |
}; |
|
843 |
||
844 |
static int |
|
845 |
dsl_snapshot_destroy_one(char *name, void *arg) |
|
846 |
{ |
|
847 |
struct destroyarg *da = arg; |
|
848 |
dsl_dataset_t *ds; |
|
849 |
char *cp; |
|
850 |
int err; |
|
851 |
||
852 |
(void) strcat(name, "@"); |
|
853 |
(void) strcat(name, da->snapname); |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
854 |
err = dsl_dataset_own(name, DS_MODE_READONLY | DS_MODE_INCONSISTENT, |
4007 | 855 |
da->dstg, &ds); |
2199 | 856 |
cp = strchr(name, '@'); |
857 |
*cp = '\0'; |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
858 |
if (err == 0) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
859 |
dsl_dataset_make_exclusive(ds, da->dstg); |
7237
f47d41541b14
PSARC 2008/393 zfs primarycache and secondarycache properties
ek110237
parents:
7077
diff
changeset
|
860 |
if (ds->ds_user_ptr) { |
f47d41541b14
PSARC 2008/393 zfs primarycache and secondarycache properties
ek110237
parents:
7077
diff
changeset
|
861 |
ds->ds_user_evict_func(ds, ds->ds_user_ptr); |
f47d41541b14
PSARC 2008/393 zfs primarycache and secondarycache properties
ek110237
parents:
7077
diff
changeset
|
862 |
ds->ds_user_ptr = NULL; |
f47d41541b14
PSARC 2008/393 zfs primarycache and secondarycache properties
ek110237
parents:
7077
diff
changeset
|
863 |
} |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
864 |
dsl_sync_task_create(da->dstg, dsl_dataset_destroy_check, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
865 |
dsl_dataset_destroy_sync, ds, da->dstg, 0); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
866 |
} else if (err == ENOENT) { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
867 |
err = 0; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
868 |
} else { |
2199 | 869 |
(void) strcpy(da->failed, name); |
870 |
} |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
871 |
return (err); |
789 | 872 |
} |
873 |
||
2199 | 874 |
/* |
875 |
* Destroy 'snapname' in all descendants of 'fsname'. |
|
876 |
*/ |
|
877 |
#pragma weak dmu_snapshots_destroy = dsl_snapshots_destroy |
|
878 |
int |
|
879 |
dsl_snapshots_destroy(char *fsname, char *snapname) |
|
880 |
{ |
|
881 |
int err; |
|
882 |
struct destroyarg da; |
|
883 |
dsl_sync_task_t *dst; |
|
884 |
spa_t *spa; |
|
885 |
||
4603
c7840c367d00
6494569 zfs recv -d pool/<doesn't exist> core dumps for top-level filesystem backups
ahrens
parents:
4577
diff
changeset
|
886 |
err = spa_open(fsname, &spa, FTAG); |
2199 | 887 |
if (err) |
888 |
return (err); |
|
889 |
da.dstg = dsl_sync_task_group_create(spa_get_dsl(spa)); |
|
890 |
da.snapname = snapname; |
|
891 |
da.failed = fsname; |
|
892 |
||
893 |
err = dmu_objset_find(fsname, |
|
2417 | 894 |
dsl_snapshot_destroy_one, &da, DS_FIND_CHILDREN); |
2199 | 895 |
|
896 |
if (err == 0) |
|
897 |
err = dsl_sync_task_group_wait(da.dstg); |
|
898 |
||
899 |
for (dst = list_head(&da.dstg->dstg_tasks); dst; |
|
900 |
dst = list_next(&da.dstg->dstg_tasks, dst)) { |
|
901 |
dsl_dataset_t *ds = dst->dst_arg1; |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
902 |
/* |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
903 |
* 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
|
904 |
*/ |
2199 | 905 |
if (dst->dst_err) { |
906 |
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
|
907 |
*strchr(fsname, '@') = '\0'; |
2199 | 908 |
} |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
909 |
dsl_dataset_disown(ds, da.dstg); |
2199 | 910 |
} |
911 |
||
912 |
dsl_sync_task_group_destroy(da.dstg); |
|
913 |
spa_close(spa, FTAG); |
|
914 |
return (err); |
|
915 |
} |
|
916 |
||
5367 | 917 |
/* |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
918 |
* 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
|
919 |
* ds will be closed and caller can no longer dereference it. |
5367 | 920 |
*/ |
789 | 921 |
int |
5367 | 922 |
dsl_dataset_destroy(dsl_dataset_t *ds, void *tag) |
789 | 923 |
{ |
924 |
int err; |
|
2199 | 925 |
dsl_sync_task_group_t *dstg; |
926 |
objset_t *os; |
|
789 | 927 |
dsl_dir_t *dd; |
2199 | 928 |
uint64_t obj; |
929 |
||
5367 | 930 |
if (dsl_dataset_is_snapshot(ds)) { |
2199 | 931 |
/* Destroying a snapshot is simpler */ |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
932 |
dsl_dataset_make_exclusive(ds, tag); |
7237
f47d41541b14
PSARC 2008/393 zfs primarycache and secondarycache properties
ek110237
parents:
7077
diff
changeset
|
933 |
|
f47d41541b14
PSARC 2008/393 zfs primarycache and secondarycache properties
ek110237
parents:
7077
diff
changeset
|
934 |
if (ds->ds_user_ptr) { |
f47d41541b14
PSARC 2008/393 zfs primarycache and secondarycache properties
ek110237
parents:
7077
diff
changeset
|
935 |
ds->ds_user_evict_func(ds, ds->ds_user_ptr); |
f47d41541b14
PSARC 2008/393 zfs primarycache and secondarycache properties
ek110237
parents:
7077
diff
changeset
|
936 |
ds->ds_user_ptr = NULL; |
f47d41541b14
PSARC 2008/393 zfs primarycache and secondarycache properties
ek110237
parents:
7077
diff
changeset
|
937 |
} |
2199 | 938 |
err = dsl_sync_task_do(ds->ds_dir->dd_pool, |
939 |
dsl_dataset_destroy_check, dsl_dataset_destroy_sync, |
|
5367 | 940 |
ds, tag, 0); |
941 |
goto out; |
|
2199 | 942 |
} |
943 |
||
944 |
dd = ds->ds_dir; |
|
789 | 945 |
|
2199 | 946 |
/* |
947 |
* Check for errors and mark this ds as inconsistent, in |
|
948 |
* case we crash while freeing the objects. |
|
949 |
*/ |
|
950 |
err = dsl_sync_task_do(dd->dd_pool, dsl_dataset_destroy_begin_check, |
|
951 |
dsl_dataset_destroy_begin_sync, ds, NULL, 0); |
|
5367 | 952 |
if (err) |
953 |
goto out; |
|
954 |
||
955 |
err = dmu_objset_open_ds(ds, DMU_OST_ANY, &os); |
|
956 |
if (err) |
|
957 |
goto out; |
|
2199 | 958 |
|
959 |
/* |
|
960 |
* remove the objects in open context, so that we won't |
|
961 |
* have too much to do in syncing context. |
|
962 |
*/ |
|
3025
4e5ee8301d84
6424466 "panic: data after EOF" when unmounting abused pool
ahrens
parents:
2885
diff
changeset
|
963 |
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
|
964 |
ds->ds_phys->ds_prev_snap_txg)) { |
6992 | 965 |
/* |
966 |
* Ignore errors, if there is not enough disk space |
|
967 |
* we will deal with it in dsl_dataset_destroy_sync(). |
|
968 |
*/ |
|
969 |
(void) dmu_free_object(os, obj); |
|
2199 | 970 |
} |
971 |
||
972 |
dmu_objset_close(os); |
|
973 |
if (err != ESRCH) |
|
5367 | 974 |
goto out; |
2199 | 975 |
|
6975
c511f317869e
6717522 panic in dmu_objset_stats() due to freed objset_impl_t
maybee
parents:
6689
diff
changeset
|
976 |
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
|
977 |
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
|
978 |
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
|
979 |
|
c511f317869e
6717522 panic in dmu_objset_stats() due to freed objset_impl_t
maybee
parents:
6689
diff
changeset
|
980 |
if (err) |
c511f317869e
6717522 panic in dmu_objset_stats() due to freed objset_impl_t
maybee
parents:
6689
diff
changeset
|
981 |
goto out; |
c511f317869e
6717522 panic in dmu_objset_stats() due to freed objset_impl_t
maybee
parents:
6689
diff
changeset
|
982 |
|
5367 | 983 |
if (ds->ds_user_ptr) { |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
984 |
/* |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
985 |
* 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
|
986 |
* 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
|
987 |
* 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
|
988 |
*/ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
989 |
txg_wait_synced(dd->dd_pool, 0); |
5367 | 990 |
} |
991 |
||
2199 | 992 |
/* |
993 |
* Blow away the dsl_dir + head dataset. |
|
994 |
*/ |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
995 |
dsl_dataset_make_exclusive(ds, tag); |
6975
c511f317869e
6717522 panic in dmu_objset_stats() due to freed objset_impl_t
maybee
parents:
6689
diff
changeset
|
996 |
if (ds->ds_user_ptr) { |
c511f317869e
6717522 panic in dmu_objset_stats() due to freed objset_impl_t
maybee
parents:
6689
diff
changeset
|
997 |
ds->ds_user_evict_func(ds, ds->ds_user_ptr); |
c511f317869e
6717522 panic in dmu_objset_stats() due to freed objset_impl_t
maybee
parents:
6689
diff
changeset
|
998 |
ds->ds_user_ptr = NULL; |
c511f317869e
6717522 panic in dmu_objset_stats() due to freed objset_impl_t
maybee
parents:
6689
diff
changeset
|
999 |
} |
2199 | 1000 |
dstg = dsl_sync_task_group_create(ds->ds_dir->dd_pool); |
1001 |
dsl_sync_task_create(dstg, dsl_dataset_destroy_check, |
|
5367 | 1002 |
dsl_dataset_destroy_sync, ds, tag, 0); |
2199 | 1003 |
dsl_sync_task_create(dstg, dsl_dir_destroy_check, |
1004 |
dsl_dir_destroy_sync, dd, FTAG, 0); |
|
1005 |
err = dsl_sync_task_group_wait(dstg); |
|
1006 |
dsl_sync_task_group_destroy(dstg); |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1007 |
/* if it is successful, dsl_dir_destroy_sync will close the dd */ |
5367 | 1008 |
if (err) |
2199 | 1009 |
dsl_dir_close(dd, FTAG); |
5367 | 1010 |
out: |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1011 |
dsl_dataset_disown(ds, tag); |
789 | 1012 |
return (err); |
1013 |
} |
|
1014 |
||
1015 |
int |
|
5367 | 1016 |
dsl_dataset_rollback(dsl_dataset_t *ds, dmu_objset_type_t ost) |
789 | 1017 |
{ |
7385
f69ff8507427
6727817 ZFS assertion failure (zero length arc_buf_alloc) during NFS I/O
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
7312
diff
changeset
|
1018 |
int err; |
f69ff8507427
6727817 ZFS assertion failure (zero length arc_buf_alloc) during NFS I/O
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
7312
diff
changeset
|
1019 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1020 |
ASSERT(ds->ds_owner); |
5367 | 1021 |
|
7385
f69ff8507427
6727817 ZFS assertion failure (zero length arc_buf_alloc) during NFS I/O
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
7312
diff
changeset
|
1022 |
dsl_dataset_make_exclusive(ds, ds->ds_owner); |
f69ff8507427
6727817 ZFS assertion failure (zero length arc_buf_alloc) during NFS I/O
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
7312
diff
changeset
|
1023 |
err = dsl_sync_task_do(ds->ds_dir->dd_pool, |
2199 | 1024 |
dsl_dataset_rollback_check, dsl_dataset_rollback_sync, |
7385
f69ff8507427
6727817 ZFS assertion failure (zero length arc_buf_alloc) during NFS I/O
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
7312
diff
changeset
|
1025 |
ds, &ost, 0); |
f69ff8507427
6727817 ZFS assertion failure (zero length arc_buf_alloc) during NFS I/O
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
7312
diff
changeset
|
1026 |
/* drop exclusive access */ |
f69ff8507427
6727817 ZFS assertion failure (zero length arc_buf_alloc) during NFS I/O
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
7312
diff
changeset
|
1027 |
mutex_enter(&ds->ds_lock); |
f69ff8507427
6727817 ZFS assertion failure (zero length arc_buf_alloc) during NFS I/O
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
7312
diff
changeset
|
1028 |
rw_exit(&ds->ds_rwlock); |
f69ff8507427
6727817 ZFS assertion failure (zero length arc_buf_alloc) during NFS I/O
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
7312
diff
changeset
|
1029 |
cv_broadcast(&ds->ds_exclusive_cv); |
f69ff8507427
6727817 ZFS assertion failure (zero length arc_buf_alloc) during NFS I/O
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
7312
diff
changeset
|
1030 |
mutex_exit(&ds->ds_lock); |
f69ff8507427
6727817 ZFS assertion failure (zero length arc_buf_alloc) during NFS I/O
Mark Maybee <Mark.Maybee@Sun.COM>
parents:
7312
diff
changeset
|
1031 |
return (err); |
789 | 1032 |
} |
1033 |
||
1034 |
void * |
|
1035 |
dsl_dataset_set_user_ptr(dsl_dataset_t *ds, |
|
1036 |
void *p, dsl_dataset_evict_func_t func) |
|
1037 |
{ |
|
1038 |
void *old; |
|
1039 |
||
1040 |
mutex_enter(&ds->ds_lock); |
|
1041 |
old = ds->ds_user_ptr; |
|
1042 |
if (old == NULL) { |
|
1043 |
ds->ds_user_ptr = p; |
|
1044 |
ds->ds_user_evict_func = func; |
|
1045 |
} |
|
1046 |
mutex_exit(&ds->ds_lock); |
|
1047 |
return (old); |
|
1048 |
} |
|
1049 |
||
1050 |
void * |
|
1051 |
dsl_dataset_get_user_ptr(dsl_dataset_t *ds) |
|
1052 |
{ |
|
1053 |
return (ds->ds_user_ptr); |
|
1054 |
} |
|
1055 |
||
1056 |
||
3547
e396e0a440b1
6512391 DMU should leverage ZIO dependencies to achieve greater parallelism
maybee
parents:
3444
diff
changeset
|
1057 |
blkptr_t * |
e396e0a440b1
6512391 DMU should leverage ZIO dependencies to achieve greater parallelism
maybee
parents:
3444
diff
changeset
|
1058 |
dsl_dataset_get_blkptr(dsl_dataset_t *ds) |
789 | 1059 |
{ |
3547
e396e0a440b1
6512391 DMU should leverage ZIO dependencies to achieve greater parallelism
maybee
parents:
3444
diff
changeset
|
1060 |
return (&ds->ds_phys->ds_bp); |
789 | 1061 |
} |
1062 |
||
1063 |
void |
|
1064 |
dsl_dataset_set_blkptr(dsl_dataset_t *ds, blkptr_t *bp, dmu_tx_t *tx) |
|
1065 |
{ |
|
1066 |
ASSERT(dmu_tx_is_syncing(tx)); |
|
1067 |
/* If it's the meta-objset, set dp_meta_rootbp */ |
|
1068 |
if (ds == NULL) { |
|
1069 |
tx->tx_pool->dp_meta_rootbp = *bp; |
|
1070 |
} else { |
|
1071 |
dmu_buf_will_dirty(ds->ds_dbuf, tx); |
|
1072 |
ds->ds_phys->ds_bp = *bp; |
|
1073 |
} |
|
1074 |
} |
|
1075 |
||
1076 |
spa_t * |
|
1077 |
dsl_dataset_get_spa(dsl_dataset_t *ds) |
|
1078 |
{ |
|
1079 |
return (ds->ds_dir->dd_pool->dp_spa); |
|
1080 |
} |
|
1081 |
||
1082 |
void |
|
1083 |
dsl_dataset_dirty(dsl_dataset_t *ds, dmu_tx_t *tx) |
|
1084 |
{ |
|
1085 |
dsl_pool_t *dp; |
|
1086 |
||
1087 |
if (ds == NULL) /* this is the meta-objset */ |
|
1088 |
return; |
|
1089 |
||
1090 |
ASSERT(ds->ds_user_ptr != NULL); |
|
2885 | 1091 |
|
1092 |
if (ds->ds_phys->ds_next_snap_obj != 0) |
|
1093 |
panic("dirtying snapshot!"); |
|
789 | 1094 |
|
1095 |
dp = ds->ds_dir->dd_pool; |
|
1096 |
||
1097 |
if (txg_list_add(&dp->dp_dirty_datasets, ds, tx->tx_txg) == 0) { |
|
1098 |
/* up the hold count until we can be written out */ |
|
1099 |
dmu_buf_add_ref(ds->ds_dbuf, ds); |
|
1100 |
} |
|
1101 |
} |
|
1102 |
||
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1103 |
/* |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1104 |
* 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
|
1105 |
* 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
|
1106 |
* 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
|
1107 |
* 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
|
1108 |
* 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
|
1109 |
* has been freed up since the snapshot was taken. |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1110 |
*/ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1111 |
static void |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1112 |
dsl_dataset_recalc_head_uniq(dsl_dataset_t *ds) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1113 |
{ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1114 |
uint64_t mrs_used; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1115 |
uint64_t dlused, dlcomp, dluncomp; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1116 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1117 |
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
|
1118 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1119 |
if (ds->ds_phys->ds_prev_snap_obj != 0) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1120 |
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
|
1121 |
else |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1122 |
mrs_used = 0; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1123 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1124 |
VERIFY(0 == bplist_space(&ds->ds_deadlist, &dlused, &dlcomp, |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1125 |
&dluncomp)); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1126 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1127 |
ASSERT3U(dlused, <=, mrs_used); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1128 |
ds->ds_phys->ds_unique_bytes = |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1129 |
ds->ds_phys->ds_used_bytes - (mrs_used - dlused); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1130 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1131 |
if (!DS_UNIQUE_IS_ACCURATE(ds) && |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1132 |
spa_version(ds->ds_dir->dd_pool->dp_spa) >= |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1133 |
SPA_VERSION_UNIQUE_ACCURATE) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1134 |
ds->ds_phys->ds_flags |= DS_FLAG_UNIQUE_ACCURATE; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1135 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1136 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1137 |
static uint64_t |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1138 |
dsl_dataset_unique(dsl_dataset_t *ds) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1139 |
{ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1140 |
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
|
1141 |
dsl_dataset_recalc_head_uniq(ds); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1142 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1143 |
return (ds->ds_phys->ds_unique_bytes); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1144 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1145 |
|
789 | 1146 |
struct killarg { |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1147 |
dsl_dataset_t *ds; |
789 | 1148 |
zio_t *zio; |
1149 |
dmu_tx_t *tx; |
|
1150 |
}; |
|
1151 |
||
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1152 |
/* ARGSUSED */ |
789 | 1153 |
static int |
1154 |
kill_blkptr(traverse_blk_cache_t *bc, spa_t *spa, void *arg) |
|
1155 |
{ |
|
1156 |
struct killarg *ka = arg; |
|
1157 |
blkptr_t *bp = &bc->bc_blkptr; |
|
1158 |
||
1159 |
ASSERT3U(bc->bc_errno, ==, 0); |
|
1160 |
||
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1161 |
ASSERT3U(bp->blk_birth, >, ka->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
|
1162 |
(void) dsl_dataset_block_kill(ka->ds, bp, ka->zio, ka->tx); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1163 |
|
789 | 1164 |
return (0); |
1165 |
} |
|
1166 |
||
1167 |
/* ARGSUSED */ |
|
2199 | 1168 |
static int |
1169 |
dsl_dataset_rollback_check(void *arg1, void *arg2, dmu_tx_t *tx) |
|
789 | 1170 |
{ |
2199 | 1171 |
dsl_dataset_t *ds = arg1; |
5367 | 1172 |
dmu_objset_type_t *ost = arg2; |
789 | 1173 |
|
2199 | 1174 |
/* |
5367 | 1175 |
* We can only roll back to emptyness if it is a ZPL objset. |
2199 | 1176 |
*/ |
5367 | 1177 |
if (*ost != DMU_OST_ZFS && ds->ds_phys->ds_prev_snap_txg == 0) |
789 | 1178 |
return (EINVAL); |
1179 |
||
2199 | 1180 |
/* |
1181 |
* This must not be a snapshot. |
|
1182 |
*/ |
|
1183 |
if (ds->ds_phys->ds_next_snap_obj != 0) |
|
1184 |
return (EINVAL); |
|
789 | 1185 |
|
1186 |
/* |
|
1187 |
* If we made changes this txg, traverse_dsl_dataset won't find |
|
1188 |
* them. Try again. |
|
1189 |
*/ |
|
2199 | 1190 |
if (ds->ds_phys->ds_bp.blk_birth >= tx->tx_txg) |
789 | 1191 |
return (EAGAIN); |
2199 | 1192 |
|
1193 |
return (0); |
|
1194 |
} |
|
789 | 1195 |
|
2199 | 1196 |
/* ARGSUSED */ |
1197 |
static void |
|
4543 | 1198 |
dsl_dataset_rollback_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) |
2199 | 1199 |
{ |
1200 |
dsl_dataset_t *ds = arg1; |
|
5367 | 1201 |
dmu_objset_type_t *ost = arg2; |
2199 | 1202 |
objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; |
789 | 1203 |
|
1204 |
dmu_buf_will_dirty(ds->ds_dbuf, tx); |
|
1205 |
||
4967
8d0de61ff354
6597381 BAD TRAP: type=e (#pf Page fault) rp=ffffff00043a48f0 addr=28 occurred in module "<unknown>" due to
perrin
parents:
4935
diff
changeset
|
1206 |
/* |
8d0de61ff354
6597381 BAD TRAP: type=e (#pf Page fault) rp=ffffff00043a48f0 addr=28 occurred in module "<unknown>" due to
perrin
parents:
4935
diff
changeset
|
1207 |
* Before the roll back destroy the zil. |
8d0de61ff354
6597381 BAD TRAP: type=e (#pf Page fault) rp=ffffff00043a48f0 addr=28 occurred in module "<unknown>" due to
perrin
parents:
4935
diff
changeset
|
1208 |
*/ |
8d0de61ff354
6597381 BAD TRAP: type=e (#pf Page fault) rp=ffffff00043a48f0 addr=28 occurred in module "<unknown>" due to
perrin
parents:
4935
diff
changeset
|
1209 |
if (ds->ds_user_ptr != NULL) { |
8d0de61ff354
6597381 BAD TRAP: type=e (#pf Page fault) rp=ffffff00043a48f0 addr=28 occurred in module "<unknown>" due to
perrin
parents:
4935
diff
changeset
|
1210 |
zil_rollback_destroy( |
8d0de61ff354
6597381 BAD TRAP: type=e (#pf Page fault) rp=ffffff00043a48f0 addr=28 occurred in module "<unknown>" due to
perrin
parents:
4935
diff
changeset
|
1211 |
((objset_impl_t *)ds->ds_user_ptr)->os_zil, tx); |
5367 | 1212 |
|
1213 |
/* |
|
1214 |
* We need to make sure that the objset_impl_t is reopened after |
|
1215 |
* we do the rollback, otherwise it will have the wrong |
|
1216 |
* objset_phys_t. Normally this would happen when this |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1217 |
* dataset-open is closed, thus causing the |
5367 | 1218 |
* dataset to be immediately evicted. But when doing "zfs recv |
1219 |
* -F", we reopen the objset before that, so that there is no |
|
1220 |
* window where the dataset is closed and inconsistent. |
|
1221 |
*/ |
|
1222 |
ds->ds_user_evict_func(ds, ds->ds_user_ptr); |
|
1223 |
ds->ds_user_ptr = NULL; |
|
4967
8d0de61ff354
6597381 BAD TRAP: type=e (#pf Page fault) rp=ffffff00043a48f0 addr=28 occurred in module "<unknown>" due to
perrin
parents:
4935
diff
changeset
|
1224 |
} |
4935
c80bf0e6f4aa
6534949 Stale need for range locking comment in zvol.c
perrin
parents:
4787
diff
changeset
|
1225 |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1226 |
/* Transfer space that was freed since last snap back to the head. */ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1227 |
{ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1228 |
uint64_t used; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1229 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1230 |
VERIFY(0 == bplist_space_birthrange(&ds->ds_deadlist, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1231 |
ds->ds_origin_txg, UINT64_MAX, &used)); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1232 |
dsl_dir_transfer_space(ds->ds_dir, used, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1233 |
DD_USED_SNAP, DD_USED_HEAD, tx); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1234 |
} |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1235 |
|
789 | 1236 |
/* Zero out the deadlist. */ |
1237 |
bplist_close(&ds->ds_deadlist); |
|
1238 |
bplist_destroy(mos, ds->ds_phys->ds_deadlist_obj, tx); |
|
1239 |
ds->ds_phys->ds_deadlist_obj = |
|
1240 |
bplist_create(mos, DSL_DEADLIST_BLOCKSIZE, tx); |
|
1544 | 1241 |
VERIFY(0 == bplist_open(&ds->ds_deadlist, mos, |
1242 |
ds->ds_phys->ds_deadlist_obj)); |
|
789 | 1243 |
|
1244 |
{ |
|
1245 |
/* Free blkptrs that we gave birth to */ |
|
1246 |
zio_t *zio; |
|
1247 |
struct killarg ka; |
|
1248 |
||
1249 |
zio = zio_root(tx->tx_pool->dp_spa, NULL, NULL, |
|
1250 |
ZIO_FLAG_MUSTSUCCEED); |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1251 |
ka.ds = ds; |
789 | 1252 |
ka.zio = zio; |
1253 |
ka.tx = tx; |
|
1254 |
(void) traverse_dsl_dataset(ds, ds->ds_phys->ds_prev_snap_txg, |
|
1255 |
ADVANCE_POST, kill_blkptr, &ka); |
|
1256 |
(void) zio_wait(zio); |
|
1257 |
} |
|
1258 |
||
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1259 |
ASSERT(!(ds->ds_phys->ds_flags & DS_FLAG_UNIQUE_ACCURATE) || |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1260 |
ds->ds_phys->ds_unique_bytes == 0); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1261 |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1262 |
if (ds->ds_prev && ds->ds_prev != ds->ds_dir->dd_pool->dp_origin_snap) { |
5367 | 1263 |
/* Change our contents to that of the prev snapshot */ |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1264 |
|
5367 | 1265 |
ASSERT3U(ds->ds_prev->ds_object, ==, |
1266 |
ds->ds_phys->ds_prev_snap_obj); |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1267 |
ASSERT3U(ds->ds_phys->ds_used_bytes, <=, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1268 |
ds->ds_prev->ds_phys->ds_used_bytes); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1269 |
|
5367 | 1270 |
ds->ds_phys->ds_bp = ds->ds_prev->ds_phys->ds_bp; |
1271 |
ds->ds_phys->ds_used_bytes = |
|
1272 |
ds->ds_prev->ds_phys->ds_used_bytes; |
|
1273 |
ds->ds_phys->ds_compressed_bytes = |
|
1274 |
ds->ds_prev->ds_phys->ds_compressed_bytes; |
|
1275 |
ds->ds_phys->ds_uncompressed_bytes = |
|
1276 |
ds->ds_prev->ds_phys->ds_uncompressed_bytes; |
|
1277 |
ds->ds_phys->ds_flags = ds->ds_prev->ds_phys->ds_flags; |
|
789 | 1278 |
|
5367 | 1279 |
if (ds->ds_prev->ds_phys->ds_next_snap_obj == ds->ds_object) { |
1280 |
dmu_buf_will_dirty(ds->ds_prev->ds_dbuf, tx); |
|
1281 |
ds->ds_prev->ds_phys->ds_unique_bytes = 0; |
|
1282 |
} |
|
1283 |
} else { |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1284 |
objset_impl_t *osi; |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1285 |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1286 |
ASSERT3U(ds->ds_phys->ds_used_bytes, ==, 0); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1287 |
ASSERT3U(ds->ds_phys->ds_compressed_bytes, ==, 0); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1288 |
ASSERT3U(ds->ds_phys->ds_uncompressed_bytes, ==, 0); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1289 |
|
5367 | 1290 |
bzero(&ds->ds_phys->ds_bp, sizeof (blkptr_t)); |
1291 |
ds->ds_phys->ds_flags = 0; |
|
1292 |
ds->ds_phys->ds_unique_bytes = 0; |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1293 |
if (spa_version(ds->ds_dir->dd_pool->dp_spa) >= |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1294 |
SPA_VERSION_UNIQUE_ACCURATE) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1295 |
ds->ds_phys->ds_flags |= DS_FLAG_UNIQUE_ACCURATE; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1296 |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1297 |
osi = dmu_objset_create_impl(ds->ds_dir->dd_pool->dp_spa, ds, |
5367 | 1298 |
&ds->ds_phys->ds_bp, *ost, tx); |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1299 |
#ifdef _KERNEL |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1300 |
zfs_create_fs(&osi->os, kcred, NULL, tx); |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1301 |
#endif |
2532
752725c22841
6448999 panic: used == ds->ds_phys->ds_unique_bytes
ahrens
parents:
2417
diff
changeset
|
1302 |
} |
4543 | 1303 |
|
1304 |
spa_history_internal_log(LOG_DS_ROLLBACK, ds->ds_dir->dd_pool->dp_spa, |
|
1305 |
tx, cr, "dataset = %llu", ds->ds_object); |
|
789 | 1306 |
} |
1307 |
||
1731
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1308 |
/* ARGSUSED */ |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1309 |
static int |
2199 | 1310 |
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
|
1311 |
{ |
2199 | 1312 |
dsl_dataset_t *ds = arg1; |
5367 | 1313 |
objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; |
1314 |
uint64_t count; |
|
1315 |
int err; |
|
1731
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1316 |
|
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1317 |
/* |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1318 |
* 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
|
1319 |
* (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
|
1320 |
* from.) |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1321 |
*/ |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1322 |
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
|
1323 |
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
|
1324 |
return (EINVAL); |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1325 |
|
5367 | 1326 |
/* |
1327 |
* This is really a dsl_dir thing, but check it here so that |
|
1328 |
* we'll be less likely to leave this dataset inconsistent & |
|
1329 |
* nearly destroyed. |
|
1330 |
*/ |
|
1331 |
err = zap_count(mos, ds->ds_dir->dd_phys->dd_child_dir_zapobj, &count); |
|
1332 |
if (err) |
|
1333 |
return (err); |
|
1334 |
if (count != 0) |
|
1335 |
return (EEXIST); |
|
1336 |
||
1731
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1337 |
return (0); |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1338 |
} |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1339 |
|
2199 | 1340 |
/* ARGSUSED */ |
1341 |
static void |
|
4543 | 1342 |
dsl_dataset_destroy_begin_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) |
789 | 1343 |
{ |
2199 | 1344 |
dsl_dataset_t *ds = arg1; |
4543 | 1345 |
dsl_pool_t *dp = ds->ds_dir->dd_pool; |
789 | 1346 |
|
2199 | 1347 |
/* Mark it as inconsistent on-disk, in case we crash */ |
1348 |
dmu_buf_will_dirty(ds->ds_dbuf, tx); |
|
1349 |
ds->ds_phys->ds_flags |= DS_FLAG_INCONSISTENT; |
|
4543 | 1350 |
|
1351 |
spa_history_internal_log(LOG_DS_DESTROY_BEGIN, dp->dp_spa, tx, |
|
1352 |
cr, "dataset = %llu", ds->ds_object); |
|
2199 | 1353 |
} |
789 | 1354 |
|
2199 | 1355 |
/* ARGSUSED */ |
5367 | 1356 |
int |
2199 | 1357 |
dsl_dataset_destroy_check(void *arg1, void *arg2, dmu_tx_t *tx) |
1358 |
{ |
|
1359 |
dsl_dataset_t *ds = arg1; |
|
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 |
|
789 | 1364 |
/* Can't delete a branch point. */ |
2199 | 1365 |
if (ds->ds_phys->ds_num_children > 1) |
1366 |
return (EEXIST); |
|
789 | 1367 |
|
1368 |
/* |
|
1369 |
* Can't delete a head dataset if there are snapshots of it. |
|
1370 |
* (Except if the only snapshots are from the branch we cloned |
|
1371 |
* from.) |
|
1372 |
*/ |
|
1373 |
if (ds->ds_prev != NULL && |
|
2199 | 1374 |
ds->ds_prev->ds_phys->ds_next_snap_obj == ds->ds_object) |
789 | 1375 |
return (EINVAL); |
1376 |
||
1377 |
/* |
|
1378 |
* If we made changes this txg, traverse_dsl_dataset won't find |
|
1379 |
* them. Try again. |
|
1380 |
*/ |
|
2199 | 1381 |
if (ds->ds_phys->ds_bp.blk_birth >= tx->tx_txg) |
789 | 1382 |
return (EAGAIN); |
2199 | 1383 |
|
1384 |
/* XXX we should do some i/o error checking... */ |
|
1385 |
return (0); |
|
1386 |
} |
|
1387 |
||
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1388 |
struct refsarg { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1389 |
kmutex_t lock; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1390 |
boolean_t gone; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1391 |
kcondvar_t cv; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1392 |
}; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1393 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1394 |
/* ARGSUSED */ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1395 |
static void |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1396 |
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
|
1397 |
{ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1398 |
struct refsarg *arg = argv; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1399 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1400 |
mutex_enter(&arg->lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1401 |
arg->gone = TRUE; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1402 |
cv_signal(&arg->cv); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1403 |
mutex_exit(&arg->lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1404 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1405 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1406 |
static void |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1407 |
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
|
1408 |
{ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1409 |
struct refsarg arg; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1410 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1411 |
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
|
1412 |
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
|
1413 |
arg.gone = FALSE; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1414 |
(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
|
1415 |
dsl_dataset_refs_gone); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1416 |
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
|
1417 |
mutex_enter(&arg.lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1418 |
while (!arg.gone) |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1419 |
cv_wait(&arg.cv, &arg.lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1420 |
ASSERT(arg.gone); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1421 |
mutex_exit(&arg.lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1422 |
ds->ds_dbuf = NULL; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1423 |
ds->ds_phys = NULL; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1424 |
mutex_destroy(&arg.lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1425 |
cv_destroy(&arg.cv); |
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 |
|
5367 | 1428 |
void |
4543 | 1429 |
dsl_dataset_destroy_sync(void *arg1, void *tag, cred_t *cr, dmu_tx_t *tx) |
2199 | 1430 |
{ |
1431 |
dsl_dataset_t *ds = arg1; |
|
1432 |
zio_t *zio; |
|
1433 |
int err; |
|
1434 |
int after_branch_point = FALSE; |
|
1435 |
dsl_pool_t *dp = ds->ds_dir->dd_pool; |
|
1436 |
objset_t *mos = dp->dp_meta_objset; |
|
1437 |
dsl_dataset_t *ds_prev = NULL; |
|
1438 |
uint64_t obj; |
|
1439 |
||
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1440 |
ASSERT(ds->ds_owner); |
2199 | 1441 |
ASSERT3U(ds->ds_phys->ds_num_children, <=, 1); |
1442 |
ASSERT(ds->ds_prev == NULL || |
|
1443 |
ds->ds_prev->ds_phys->ds_next_snap_obj != ds->ds_object); |
|
1444 |
ASSERT3U(ds->ds_phys->ds_bp.blk_birth, <=, tx->tx_txg); |
|
1445 |
||
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1446 |
/* 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
|
1447 |
mutex_enter(&ds->ds_lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1448 |
ds->ds_owner = dsl_reaper; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1449 |
cv_broadcast(&ds->ds_exclusive_cv); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1450 |
mutex_exit(&ds->ds_lock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1451 |
|
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1452 |
/* Remove our reservation */ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1453 |
if (ds->ds_reserved != 0) { |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1454 |
uint64_t val = 0; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1455 |
dsl_dataset_set_reservation_sync(ds, &val, cr, tx); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1456 |
ASSERT3U(ds->ds_reserved, ==, 0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1457 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1458 |
|
2199 | 1459 |
ASSERT(RW_WRITE_HELD(&dp->dp_config_rwlock)); |
1460 |
||
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1461 |
dsl_pool_ds_destroyed(ds, tx); |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1462 |
|
2199 | 1463 |
obj = ds->ds_object; |
789 | 1464 |
|
1465 |
if (ds->ds_phys->ds_prev_snap_obj != 0) { |
|
1466 |
if (ds->ds_prev) { |
|
1467 |
ds_prev = ds->ds_prev; |
|
1468 |
} else { |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1469 |
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
|
1470 |
ds->ds_phys->ds_prev_snap_obj, FTAG, &ds_prev)); |
789 | 1471 |
} |
1472 |
after_branch_point = |
|
1473 |
(ds_prev->ds_phys->ds_next_snap_obj != obj); |
|
1474 |
||
1475 |
dmu_buf_will_dirty(ds_prev->ds_dbuf, tx); |
|
1476 |
if (after_branch_point && |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1477 |
ds_prev->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
|
1478 |
VERIFY(0 == zap_remove_int(mos, |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1479 |
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
|
1480 |
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
|
1481 |
VERIFY(0 == zap_add_int(mos, |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1482 |
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
|
1483 |
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
|
1484 |
} |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1485 |
} |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1486 |
if (after_branch_point && |
789 | 1487 |
ds->ds_phys->ds_next_snap_obj == 0) { |
1488 |
/* This clone is toast. */ |
|
1489 |
ASSERT(ds_prev->ds_phys->ds_num_children > 1); |
|
1490 |
ds_prev->ds_phys->ds_num_children--; |
|
1491 |
} else if (!after_branch_point) { |
|
1492 |
ds_prev->ds_phys->ds_next_snap_obj = |
|
1493 |
ds->ds_phys->ds_next_snap_obj; |
|
1494 |
} |
|
1495 |
} |
|
1496 |
||
1497 |
zio = zio_root(dp->dp_spa, NULL, NULL, ZIO_FLAG_MUSTSUCCEED); |
|
1498 |
||
1499 |
if (ds->ds_phys->ds_next_snap_obj != 0) { |
|
2199 | 1500 |
blkptr_t bp; |
789 | 1501 |
dsl_dataset_t *ds_next; |
1502 |
uint64_t itor = 0; |
|
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1503 |
uint64_t old_unique; |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1504 |
int64_t used = 0, compressed = 0, uncompressed = 0; |
789 | 1505 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1506 |
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
|
1507 |
ds->ds_phys->ds_next_snap_obj, FTAG, &ds_next)); |
789 | 1508 |
ASSERT3U(ds_next->ds_phys->ds_prev_snap_obj, ==, obj); |
1509 |
||
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1510 |
old_unique = dsl_dataset_unique(ds_next); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1511 |
|
789 | 1512 |
dmu_buf_will_dirty(ds_next->ds_dbuf, tx); |
1513 |
ds_next->ds_phys->ds_prev_snap_obj = |
|
1514 |
ds->ds_phys->ds_prev_snap_obj; |
|
1515 |
ds_next->ds_phys->ds_prev_snap_txg = |
|
1516 |
ds->ds_phys->ds_prev_snap_txg; |
|
1517 |
ASSERT3U(ds->ds_phys->ds_prev_snap_txg, ==, |
|
1518 |
ds_prev ? ds_prev->ds_phys->ds_creation_txg : 0); |
|
1519 |
||
1520 |
/* |
|
1521 |
* Transfer to our deadlist (which will become next's |
|
1522 |
* new deadlist) any entries from next's current |
|
1523 |
* deadlist which were born before prev, and free the |
|
1524 |
* other entries. |
|
1525 |
* |
|
1526 |
* XXX we're doing this long task with the config lock held |
|
1527 |
*/ |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1528 |
while (bplist_iterate(&ds_next->ds_deadlist, &itor, &bp) == 0) { |
789 | 1529 |
if (bp.blk_birth <= ds->ds_phys->ds_prev_snap_txg) { |
1544 | 1530 |
VERIFY(0 == bplist_enqueue(&ds->ds_deadlist, |
1531 |
&bp, tx)); |
|
789 | 1532 |
if (ds_prev && !after_branch_point && |
1533 |
bp.blk_birth > |
|
1534 |
ds_prev->ds_phys->ds_prev_snap_txg) { |
|
1535 |
ds_prev->ds_phys->ds_unique_bytes += |
|
2082 | 1536 |
bp_get_dasize(dp->dp_spa, &bp); |
789 | 1537 |
} |
1538 |
} else { |
|
2082 | 1539 |
used += bp_get_dasize(dp->dp_spa, &bp); |
789 | 1540 |
compressed += BP_GET_PSIZE(&bp); |
1541 |
uncompressed += BP_GET_UCSIZE(&bp); |
|
1542 |
/* XXX check return value? */ |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1543 |
(void) dsl_free(zio, dp, tx->tx_txg, |
789 | 1544 |
&bp, NULL, NULL, ARC_NOWAIT); |
1545 |
} |
|
1546 |
} |
|
1547 |
||
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1548 |
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
|
1549 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1550 |
/* change snapused */ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1551 |
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
|
1552 |
-used, -compressed, -uncompressed, tx); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1553 |
|
789 | 1554 |
/* free next's deadlist */ |
1555 |
bplist_close(&ds_next->ds_deadlist); |
|
1556 |
bplist_destroy(mos, ds_next->ds_phys->ds_deadlist_obj, tx); |
|
1557 |
||
1558 |
/* 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
|
1559 |
bplist_close(&ds->ds_deadlist); |
789 | 1560 |
ds_next->ds_phys->ds_deadlist_obj = |
1561 |
ds->ds_phys->ds_deadlist_obj; |
|
1544 | 1562 |
VERIFY(0 == bplist_open(&ds_next->ds_deadlist, mos, |
1563 |
ds_next->ds_phys->ds_deadlist_obj)); |
|
789 | 1564 |
ds->ds_phys->ds_deadlist_obj = 0; |
1565 |
||
1566 |
if (ds_next->ds_phys->ds_next_snap_obj != 0) { |
|
1567 |
/* |
|
1568 |
* Update next's unique to include blocks which |
|
1569 |
* were previously shared by only this snapshot |
|
1570 |
* and it. Those blocks will be born after the |
|
1571 |
* prev snap and before this snap, and will have |
|
1572 |
* died after the next snap and before the one |
|
1573 |
* after that (ie. be on the snap after next's |
|
1574 |
* deadlist). |
|
1575 |
* |
|
1576 |
* XXX we're doing this long task with the |
|
1577 |
* config lock held |
|
1578 |
*/ |
|
1579 |
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
|
1580 |
uint64_t space; |
789 | 1581 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1582 |
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
|
1583 |
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
|
1584 |
FTAG, &ds_after_next)); |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1585 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1586 |
VERIFY(0 == |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1587 |
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
|
1588 |
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
|
1589 |
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
|
1590 |
ds_next->ds_phys->ds_unique_bytes += space; |
789 | 1591 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1592 |
dsl_dataset_rele(ds_after_next, FTAG); |
789 | 1593 |
ASSERT3P(ds_next->ds_prev, ==, NULL); |
1594 |
} else { |
|
1595 |
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
|
1596 |
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
|
1597 |
ds_next->ds_prev = NULL; |
789 | 1598 |
if (ds_prev) { |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1599 |
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
|
1600 |
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
|
1601 |
ds_next, &ds_next->ds_prev)); |
789 | 1602 |
} |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1603 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1604 |
dsl_dataset_recalc_head_uniq(ds_next); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1605 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1606 |
/* |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1607 |
* Reduce the amount of our unconsmed refreservation |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1608 |
* being charged to our parent by the amount of |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1609 |
* new unique data we have gained. |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1610 |
*/ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1611 |
if (old_unique < ds_next->ds_reserved) { |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1612 |
int64_t mrsdelta; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1613 |
uint64_t new_unique = |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1614 |
ds_next->ds_phys->ds_unique_bytes; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1615 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1616 |
ASSERT(old_unique <= new_unique); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1617 |
mrsdelta = MIN(new_unique - old_unique, |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1618 |
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
|
1619 |
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
|
1620 |
DD_USED_REFRSRV, -mrsdelta, 0, 0, tx); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1621 |
} |
789 | 1622 |
} |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1623 |
dsl_dataset_rele(ds_next, FTAG); |
789 | 1624 |
} else { |
1625 |
/* |
|
1626 |
* There's no next snapshot, so this is a head dataset. |
|
1627 |
* Destroy the deadlist. Unless it's a clone, the |
|
1628 |
* deadlist should be empty. (If it's a clone, it's |
|
1629 |
* safe to ignore the deadlist contents.) |
|
1630 |
*/ |
|
1631 |
struct killarg ka; |
|
1632 |
||
1633 |
ASSERT(after_branch_point || bplist_empty(&ds->ds_deadlist)); |
|
1634 |
bplist_close(&ds->ds_deadlist); |
|
1635 |
bplist_destroy(mos, ds->ds_phys->ds_deadlist_obj, tx); |
|
1636 |
ds->ds_phys->ds_deadlist_obj = 0; |
|
1637 |
||
1638 |
/* |
|
1639 |
* Free everything that we point to (that's born after |
|
1640 |
* the previous snapshot, if we are a clone) |
|
1641 |
* |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1642 |
* 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
|
1643 |
* freed all the objects in open context. |
789 | 1644 |
*/ |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1645 |
ka.ds = ds; |
789 | 1646 |
ka.zio = zio; |
1647 |
ka.tx = tx; |
|
1648 |
err = traverse_dsl_dataset(ds, ds->ds_phys->ds_prev_snap_txg, |
|
1649 |
ADVANCE_POST, kill_blkptr, &ka); |
|
1650 |
ASSERT3U(err, ==, 0); |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1651 |
ASSERT(spa_version(dp->dp_spa) < SPA_VERSION_UNIQUE_ACCURATE || |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1652 |
ds->ds_phys->ds_unique_bytes == 0); |
789 | 1653 |
} |
1654 |
||
1655 |
err = zio_wait(zio); |
|
1656 |
ASSERT3U(err, ==, 0); |
|
1657 |
||
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1658 |
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
|
1659 |
/* Erase the link in the dir */ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1660 |
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
|
1661 |
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
|
1662 |
ASSERT(ds->ds_phys->ds_snapnames_zapobj != 0); |
789 | 1663 |
err = zap_destroy(mos, ds->ds_phys->ds_snapnames_zapobj, tx); |
1664 |
ASSERT(err == 0); |
|
1665 |
} else { |
|
1666 |
/* remove from snapshot namespace */ |
|
1667 |
dsl_dataset_t *ds_head; |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1668 |
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
|
1669 |
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
|
1670 |
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
|
1671 |
VERIFY(0 == dsl_dataset_get_snapname(ds)); |
789 | 1672 |
#ifdef ZFS_DEBUG |
1673 |
{ |
|
1674 |
uint64_t val; |
|
6492
903545192033
6654808 FIGNORECASE lookups in a zfs xattr dir don't provide 'realname' data
timh
parents:
6047
diff
changeset
|
1675 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1676 |
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
|
1677 |
ds->ds_snapname, &val); |
789 | 1678 |
ASSERT3U(err, ==, 0); |
1679 |
ASSERT3U(val, ==, obj); |
|
1680 |
} |
|
1681 |
#endif |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1682 |
err = dsl_dataset_snap_remove(ds_head, ds->ds_snapname, tx); |
789 | 1683 |
ASSERT(err == 0); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1684 |
dsl_dataset_rele(ds_head, FTAG); |
789 | 1685 |
} |
1686 |
||
1687 |
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
|
1688 |
dsl_dataset_rele(ds_prev, FTAG); |
789 | 1689 |
|
5094 | 1690 |
spa_prop_clear_bootfs(dp->dp_spa, ds->ds_object, tx); |
4543 | 1691 |
spa_history_internal_log(LOG_DS_DESTROY, dp->dp_spa, tx, |
1692 |
cr, "dataset = %llu", ds->ds_object); |
|
1693 |
||
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1694 |
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
|
1695 |
uint64_t count; |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1696 |
ASSERT(0 == zap_count(mos, |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1697 |
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
|
1698 |
VERIFY(0 == dmu_object_free(mos, |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1699 |
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
|
1700 |
} |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1701 |
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
|
1702 |
VERIFY(0 == zap_destroy(mos, ds->ds_phys->ds_props_obj, tx)); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1703 |
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
|
1704 |
ds->ds_dir = NULL; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1705 |
dsl_dataset_drain_refs(ds, tag); |
2199 | 1706 |
VERIFY(0 == dmu_object_free(mos, obj, tx)); |
1707 |
} |
|
1708 |
||
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1709 |
static int |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1710 |
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
|
1711 |
{ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1712 |
uint64_t asize; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1713 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1714 |
if (!dmu_tx_is_syncing(tx)) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1715 |
return (0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1716 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1717 |
/* |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1718 |
* 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
|
1719 |
* 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
|
1720 |
* outside of the reservation. |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1721 |
*/ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1722 |
asize = MIN(dsl_dataset_unique(ds), ds->ds_reserved); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1723 |
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
|
1724 |
return (ENOSPC); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1725 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1726 |
/* |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1727 |
* Propogate any reserved space for this snapshot to other |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1728 |
* snapshot checks in this sync group. |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1729 |
*/ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1730 |
if (asize > 0) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1731 |
dsl_dir_willuse_space(ds->ds_dir, asize, tx); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1732 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1733 |
return (0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1734 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1735 |
|
2199 | 1736 |
/* ARGSUSED */ |
1737 |
int |
|
1738 |
dsl_dataset_snapshot_check(void *arg1, void *arg2, dmu_tx_t *tx) |
|
1739 |
{ |
|
5367 | 1740 |
dsl_dataset_t *ds = arg1; |
2199 | 1741 |
const char *snapname = arg2; |
1742 |
int err; |
|
1743 |
uint64_t value; |
|
789 | 1744 |
|
1745 |
/* |
|
2199 | 1746 |
* We don't allow multiple snapshots of the same txg. If there |
1747 |
* is already one, try again. |
|
1748 |
*/ |
|
1749 |
if (ds->ds_phys->ds_prev_snap_txg >= tx->tx_txg) |
|
1750 |
return (EAGAIN); |
|
1751 |
||
1752 |
/* |
|
1753 |
* Check for conflicting name snapshot name. |
|
789 | 1754 |
*/ |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1755 |
err = dsl_dataset_snap_lookup(ds, snapname, &value); |
2199 | 1756 |
if (err == 0) |
1757 |
return (EEXIST); |
|
1758 |
if (err != ENOENT) |
|
1759 |
return (err); |
|
789 | 1760 |
|
3978
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
1761 |
/* |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
1762 |
* 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
|
1763 |
* 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
|
1764 |
*/ |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
1765 |
if (dsl_dataset_namelen(ds) + 1 + strlen(snapname) >= MAXNAMELEN) |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
1766 |
return (ENAMETOOLONG); |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
parents:
3912
diff
changeset
|
1767 |
|
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1768 |
err = dsl_dataset_snapshot_reserve_space(ds, tx); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1769 |
if (err) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1770 |
return (err); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1771 |
|
2199 | 1772 |
ds->ds_trysnap_txg = tx->tx_txg; |
789 | 1773 |
return (0); |
1774 |
} |
|
1775 |
||
2199 | 1776 |
void |
4543 | 1777 |
dsl_dataset_snapshot_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) |
789 | 1778 |
{ |
5367 | 1779 |
dsl_dataset_t *ds = arg1; |
2199 | 1780 |
const char *snapname = arg2; |
1781 |
dsl_pool_t *dp = ds->ds_dir->dd_pool; |
|
789 | 1782 |
dmu_buf_t *dbuf; |
1783 |
dsl_dataset_phys_t *dsphys; |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1784 |
uint64_t dsobj, crtxg; |
789 | 1785 |
objset_t *mos = dp->dp_meta_objset; |
1786 |
int err; |
|
1787 |
||
2199 | 1788 |
ASSERT(RW_WRITE_HELD(&dp->dp_config_rwlock)); |
789 | 1789 |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1790 |
/* |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1791 |
* 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
|
1792 |
*/ |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1793 |
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
|
1794 |
crtxg = 1; |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1795 |
else |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1796 |
crtxg = tx->tx_txg; |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1797 |
|
928
36d72fe4da29
6349314 dmu_object_type names incorrect for DSL Directories and DSL Datasets
tabriz
parents:
885
diff
changeset
|
1798 |
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
|
1799 |
DMU_OT_DSL_DATASET, sizeof (dsl_dataset_phys_t), tx); |
1544 | 1800 |
VERIFY(0 == dmu_bonus_hold(mos, dsobj, FTAG, &dbuf)); |
789 | 1801 |
dmu_buf_will_dirty(dbuf, tx); |
1802 |
dsphys = dbuf->db_data; |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1803 |
bzero(dsphys, sizeof (dsl_dataset_phys_t)); |
2199 | 1804 |
dsphys->ds_dir_obj = ds->ds_dir->dd_object; |
789 | 1805 |
dsphys->ds_fsid_guid = unique_create(); |
1806 |
(void) random_get_pseudo_bytes((void*)&dsphys->ds_guid, |
|
1807 |
sizeof (dsphys->ds_guid)); |
|
1808 |
dsphys->ds_prev_snap_obj = ds->ds_phys->ds_prev_snap_obj; |
|
1809 |
dsphys->ds_prev_snap_txg = ds->ds_phys->ds_prev_snap_txg; |
|
1810 |
dsphys->ds_next_snap_obj = ds->ds_object; |
|
1811 |
dsphys->ds_num_children = 1; |
|
1812 |
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
|
1813 |
dsphys->ds_creation_txg = crtxg; |
789 | 1814 |
dsphys->ds_deadlist_obj = ds->ds_phys->ds_deadlist_obj; |
1815 |
dsphys->ds_used_bytes = ds->ds_phys->ds_used_bytes; |
|
1816 |
dsphys->ds_compressed_bytes = ds->ds_phys->ds_compressed_bytes; |
|
1817 |
dsphys->ds_uncompressed_bytes = ds->ds_phys->ds_uncompressed_bytes; |
|
2082 | 1818 |
dsphys->ds_flags = ds->ds_phys->ds_flags; |
789 | 1819 |
dsphys->ds_bp = ds->ds_phys->ds_bp; |
1544 | 1820 |
dmu_buf_rele(dbuf, FTAG); |
789 | 1821 |
|
2199 | 1822 |
ASSERT3U(ds->ds_prev != 0, ==, ds->ds_phys->ds_prev_snap_obj != 0); |
1823 |
if (ds->ds_prev) { |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1824 |
uint64_t next_clones_obj = |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1825 |
ds->ds_prev->ds_phys->ds_next_clones_obj; |
2199 | 1826 |
ASSERT(ds->ds_prev->ds_phys->ds_next_snap_obj == |
789 | 1827 |
ds->ds_object || |
2199 | 1828 |
ds->ds_prev->ds_phys->ds_num_children > 1); |
1829 |
if (ds->ds_prev->ds_phys->ds_next_snap_obj == ds->ds_object) { |
|
1830 |
dmu_buf_will_dirty(ds->ds_prev->ds_dbuf, tx); |
|
789 | 1831 |
ASSERT3U(ds->ds_phys->ds_prev_snap_txg, ==, |
2199 | 1832 |
ds->ds_prev->ds_phys->ds_creation_txg); |
1833 |
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
|
1834 |
} else if (next_clones_obj != 0) { |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1835 |
VERIFY3U(0, ==, zap_remove_int(mos, |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1836 |
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
|
1837 |
VERIFY3U(0, ==, zap_add_int(mos, |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1838 |
next_clones_obj, dsobj, tx)); |
789 | 1839 |
} |
1840 |
} |
|
1841 |
||
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1842 |
/* |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1843 |
* 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
|
1844 |
* need to increase the amount of refreservation being charged |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1845 |
* since our unique space is going to zero. |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1846 |
*/ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1847 |
if (ds->ds_reserved) { |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1848 |
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
|
1849 |
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
|
1850 |
add, 0, 0, tx); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1851 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1852 |
|
789 | 1853 |
bplist_close(&ds->ds_deadlist); |
1854 |
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
|
1855 |
ASSERT3U(ds->ds_phys->ds_prev_snap_txg, <, tx->tx_txg); |
789 | 1856 |
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
|
1857 |
ds->ds_phys->ds_prev_snap_txg = crtxg; |
789 | 1858 |
ds->ds_phys->ds_unique_bytes = 0; |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1859 |
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
|
1860 |
ds->ds_phys->ds_flags |= DS_FLAG_UNIQUE_ACCURATE; |
789 | 1861 |
ds->ds_phys->ds_deadlist_obj = |
1862 |
bplist_create(mos, DSL_DEADLIST_BLOCKSIZE, tx); |
|
1544 | 1863 |
VERIFY(0 == bplist_open(&ds->ds_deadlist, mos, |
1864 |
ds->ds_phys->ds_deadlist_obj)); |
|
789 | 1865 |
|
1866 |
dprintf("snap '%s' -> obj %llu\n", snapname, dsobj); |
|
1867 |
err = zap_add(mos, ds->ds_phys->ds_snapnames_zapobj, |
|
1868 |
snapname, 8, 1, &dsobj, tx); |
|
1869 |
ASSERT(err == 0); |
|
1870 |
||
1871 |
if (ds->ds_prev) |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1872 |
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
|
1873 |
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
|
1874 |
ds->ds_phys->ds_prev_snap_obj, ds, &ds->ds_prev)); |
4543 | 1875 |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1876 |
dsl_pool_ds_snapshotted(ds, tx); |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1877 |
|
4543 | 1878 |
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
|
1879 |
"dataset = %llu", dsobj); |
789 | 1880 |
} |
1881 |
||
1882 |
void |
|
3547
e396e0a440b1
6512391 DMU should leverage ZIO dependencies to achieve greater parallelism
maybee
parents:
3444
diff
changeset
|
1883 |
dsl_dataset_sync(dsl_dataset_t *ds, zio_t *zio, dmu_tx_t *tx) |
789 | 1884 |
{ |
1885 |
ASSERT(dmu_tx_is_syncing(tx)); |
|
1886 |
ASSERT(ds->ds_user_ptr != NULL); |
|
1887 |
ASSERT(ds->ds_phys->ds_next_snap_obj == 0); |
|
1888 |
||
4787 | 1889 |
/* |
1890 |
* in case we had to change ds_fsid_guid when we opened it, |
|
1891 |
* sync it out now. |
|
1892 |
*/ |
|
1893 |
dmu_buf_will_dirty(ds->ds_dbuf, tx); |
|
1894 |
ds->ds_phys->ds_fsid_guid = ds->ds_fsid_guid; |
|
1895 |
||
789 | 1896 |
dsl_dir_dirty(ds->ds_dir, tx); |
3547
e396e0a440b1
6512391 DMU should leverage ZIO dependencies to achieve greater parallelism
maybee
parents:
3444
diff
changeset
|
1897 |
dmu_objset_sync(ds->ds_user_ptr, zio, tx); |
789 | 1898 |
} |
1899 |
||
1900 |
void |
|
2885 | 1901 |
dsl_dataset_stats(dsl_dataset_t *ds, nvlist_t *nv) |
789 | 1902 |
{ |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1903 |
uint64_t refd, avail, uobjs, aobjs; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1904 |
|
2885 | 1905 |
dsl_dir_stats(ds->ds_dir, nv); |
789 | 1906 |
|
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1907 |
dsl_dataset_space(ds, &refd, &avail, &uobjs, &aobjs); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1908 |
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
|
1909 |
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
|
1910 |
|
2885 | 1911 |
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_CREATION, |
1912 |
ds->ds_phys->ds_creation_time); |
|
1913 |
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_CREATETXG, |
|
1914 |
ds->ds_phys->ds_creation_txg); |
|
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1915 |
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_REFQUOTA, |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1916 |
ds->ds_quota); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1917 |
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_REFRESERVATION, |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1918 |
ds->ds_reserved); |
6643
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6502
diff
changeset
|
1919 |
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
|
1920 |
ds->ds_phys->ds_guid); |
789 | 1921 |
|
1922 |
if (ds->ds_phys->ds_next_snap_obj) { |
|
1923 |
/* |
|
1924 |
* This is a snapshot; override the dd's space used with |
|
2885 | 1925 |
* our unique space and compression ratio. |
789 | 1926 |
*/ |
2885 | 1927 |
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_USED, |
1928 |
ds->ds_phys->ds_unique_bytes); |
|
1929 |
dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_COMPRESSRATIO, |
|
1930 |
ds->ds_phys->ds_compressed_bytes == 0 ? 100 : |
|
1931 |
(ds->ds_phys->ds_uncompressed_bytes * 100 / |
|
1932 |
ds->ds_phys->ds_compressed_bytes)); |
|
789 | 1933 |
} |
1934 |
} |
|
1935 |
||
2885 | 1936 |
void |
1937 |
dsl_dataset_fast_stat(dsl_dataset_t *ds, dmu_objset_stats_t *stat) |
|
789 | 1938 |
{ |
2885 | 1939 |
stat->dds_creation_txg = ds->ds_phys->ds_creation_txg; |
1940 |
stat->dds_inconsistent = ds->ds_phys->ds_flags & DS_FLAG_INCONSISTENT; |
|
5367 | 1941 |
stat->dds_guid = ds->ds_phys->ds_guid; |
2885 | 1942 |
if (ds->ds_phys->ds_next_snap_obj) { |
1943 |
stat->dds_is_snapshot = B_TRUE; |
|
1944 |
stat->dds_num_clones = ds->ds_phys->ds_num_children - 1; |
|
1945 |
} |
|
1946 |
||
1947 |
/* clone origin is really a dsl_dir thing... */ |
|
5446 | 1948 |
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
|
1949 |
if (dsl_dir_is_clone(ds->ds_dir)) { |
2885 | 1950 |
dsl_dataset_t *ods; |
1951 |
||
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1952 |
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
|
1953 |
ds->ds_dir->dd_phys->dd_origin_obj, FTAG, &ods)); |
5367 | 1954 |
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
|
1955 |
dsl_dataset_drop_ref(ods, FTAG); |
2885 | 1956 |
} |
5446 | 1957 |
rw_exit(&ds->ds_dir->dd_pool->dp_config_rwlock); |
2885 | 1958 |
} |
1959 |
||
1960 |
uint64_t |
|
1961 |
dsl_dataset_fsid_guid(dsl_dataset_t *ds) |
|
1962 |
{ |
|
4787 | 1963 |
return (ds->ds_fsid_guid); |
2885 | 1964 |
} |
1965 |
||
1966 |
void |
|
1967 |
dsl_dataset_space(dsl_dataset_t *ds, |
|
1968 |
uint64_t *refdbytesp, uint64_t *availbytesp, |
|
1969 |
uint64_t *usedobjsp, uint64_t *availobjsp) |
|
1970 |
{ |
|
1971 |
*refdbytesp = ds->ds_phys->ds_used_bytes; |
|
1972 |
*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
|
1973 |
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
|
1974 |
*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
|
1975 |
if (ds->ds_quota != 0) { |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1976 |
/* |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1977 |
* Adjust available bytes according to refquota |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1978 |
*/ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1979 |
if (*refdbytesp < ds->ds_quota) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1980 |
*availbytesp = MIN(*availbytesp, |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1981 |
ds->ds_quota - *refdbytesp); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1982 |
else |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1983 |
*availbytesp = 0; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1984 |
} |
2885 | 1985 |
*usedobjsp = ds->ds_phys->ds_bp.blk_fill; |
1986 |
*availobjsp = DN_MAX_OBJECT - *usedobjsp; |
|
789 | 1987 |
} |
1988 |
||
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
1989 |
boolean_t |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
1990 |
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
|
1991 |
{ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
1992 |
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
|
1993 |
|
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
1994 |
ASSERT(RW_LOCK_HELD(&dp->dp_config_rwlock) || |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
1995 |
dsl_pool_sync_context(dp)); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
1996 |
if (ds->ds_prev == NULL) |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
1997 |
return (B_FALSE); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
1998 |
if (ds->ds_phys->ds_bp.blk_birth > |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
1999 |
ds->ds_prev->ds_phys->ds_creation_txg) |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2000 |
return (B_TRUE); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2001 |
return (B_FALSE); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2002 |
} |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2003 |
|
2199 | 2004 |
/* ARGSUSED */ |
789 | 2005 |
static int |
2199 | 2006 |
dsl_dataset_snapshot_rename_check(void *arg1, void *arg2, dmu_tx_t *tx) |
789 | 2007 |
{ |
2199 | 2008 |
dsl_dataset_t *ds = arg1; |
2009 |
char *newsnapname = arg2; |
|
2010 |
dsl_dir_t *dd = ds->ds_dir; |
|
2011 |
dsl_dataset_t *hds; |
|
2012 |
uint64_t val; |
|
789 | 2013 |
int err; |
2014 |
||
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2015 |
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
|
2016 |
dd->dd_phys->dd_head_dataset_obj, FTAG, &hds); |
789 | 2017 |
if (err) |
2018 |
return (err); |
|
2019 |
||
2199 | 2020 |
/* 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
|
2021 |
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
|
2022 |
dsl_dataset_rele(hds, FTAG); |
789 | 2023 |
|
2199 | 2024 |
if (err == 0) |
2025 |
err = EEXIST; |
|
2026 |
else if (err == ENOENT) |
|
2027 |
err = 0; |
|
4007 | 2028 |
|
2029 |
/* dataset name + 1 for the "@" + the new snapshot name must fit */ |
|
2030 |
if (dsl_dir_namelen(ds->ds_dir) + 1 + strlen(newsnapname) >= MAXNAMELEN) |
|
2031 |
err = ENAMETOOLONG; |
|
2032 |
||
2199 | 2033 |
return (err); |
2034 |
} |
|
789 | 2035 |
|
2199 | 2036 |
static void |
4543 | 2037 |
dsl_dataset_snapshot_rename_sync(void *arg1, void *arg2, |
2038 |
cred_t *cr, dmu_tx_t *tx) |
|
2199 | 2039 |
{ |
2040 |
dsl_dataset_t *ds = arg1; |
|
4543 | 2041 |
const char *newsnapname = arg2; |
2199 | 2042 |
dsl_dir_t *dd = ds->ds_dir; |
2043 |
objset_t *mos = dd->dd_pool->dp_meta_objset; |
|
2044 |
dsl_dataset_t *hds; |
|
2045 |
int err; |
|
789 | 2046 |
|
2199 | 2047 |
ASSERT(ds->ds_phys->ds_next_snap_obj != 0); |
789 | 2048 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2049 |
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
|
2050 |
dd->dd_phys->dd_head_dataset_obj, FTAG, &hds)); |
789 | 2051 |
|
2199 | 2052 |
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
|
2053 |
err = dsl_dataset_snap_remove(hds, ds->ds_snapname, tx); |
789 | 2054 |
ASSERT3U(err, ==, 0); |
2199 | 2055 |
mutex_enter(&ds->ds_lock); |
2056 |
(void) strcpy(ds->ds_snapname, newsnapname); |
|
2057 |
mutex_exit(&ds->ds_lock); |
|
2058 |
err = zap_add(mos, hds->ds_phys->ds_snapnames_zapobj, |
|
2059 |
ds->ds_snapname, 8, 1, &ds->ds_object, tx); |
|
789 | 2060 |
ASSERT3U(err, ==, 0); |
2061 |
||
4543 | 2062 |
spa_history_internal_log(LOG_DS_RENAME, dd->dd_pool->dp_spa, tx, |
2063 |
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
|
2064 |
dsl_dataset_rele(hds, FTAG); |
789 | 2065 |
} |
2066 |
||
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2067 |
struct renamesnaparg { |
4007 | 2068 |
dsl_sync_task_group_t *dstg; |
2069 |
char failed[MAXPATHLEN]; |
|
2070 |
char *oldsnap; |
|
2071 |
char *newsnap; |
|
2072 |
}; |
|
2073 |
||
2074 |
static int |
|
2075 |
dsl_snapshot_rename_one(char *name, void *arg) |
|
2076 |
{ |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2077 |
struct renamesnaparg *ra = arg; |
4007 | 2078 |
dsl_dataset_t *ds = NULL; |
2079 |
char *cp; |
|
2080 |
int err; |
|
2081 |
||
2082 |
cp = name + strlen(name); |
|
2083 |
*cp = '@'; |
|
2084 |
(void) strcpy(cp + 1, ra->oldsnap); |
|
4543 | 2085 |
|
2086 |
/* |
|
2087 |
* For recursive snapshot renames the parent won't be changing |
|
2088 |
* so we just pass name for both the to/from argument. |
|
2089 |
*/ |
|
7312
3992f9a413c2
6736061 recursive rename of snapshot fails if child snapshot doesn't exist
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7265
diff
changeset
|
2090 |
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
|
2091 |
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
|
2092 |
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
|
2093 |
} else if (err) { |
4543 | 2094 |
(void) strcpy(ra->failed, name); |
2095 |
return (err); |
|
2096 |
} |
|
2097 |
||
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2098 |
#ifdef _KERNEL |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2099 |
/* |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2100 |
* 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
|
2101 |
*/ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2102 |
(void) zfs_unmount_snap(name, NULL); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2103 |
#endif |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2104 |
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
|
2105 |
*cp = '\0'; |
4007 | 2106 |
if (err == ENOENT) { |
2107 |
return (0); |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2108 |
} else if (err) { |
4007 | 2109 |
(void) strcpy(ra->failed, name); |
2110 |
return (err); |
|
2111 |
} |
|
2112 |
||
2113 |
dsl_sync_task_create(ra->dstg, dsl_dataset_snapshot_rename_check, |
|
2114 |
dsl_dataset_snapshot_rename_sync, ds, ra->newsnap, 0); |
|
2115 |
||
2116 |
return (0); |
|
2117 |
} |
|
2118 |
||
2119 |
static int |
|
2120 |
dsl_recursive_rename(char *oldname, const char *newname) |
|
2121 |
{ |
|
2122 |
int err; |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2123 |
struct renamesnaparg *ra; |
4007 | 2124 |
dsl_sync_task_t *dst; |
2125 |
spa_t *spa; |
|
2126 |
char *cp, *fsname = spa_strdup(oldname); |
|
2127 |
int len = strlen(oldname); |
|
2128 |
||
2129 |
/* truncate the snapshot name to get the fsname */ |
|
2130 |
cp = strchr(fsname, '@'); |
|
2131 |
*cp = '\0'; |
|
2132 |
||
4603
c7840c367d00
6494569 zfs recv -d pool/<doesn't exist> core dumps for top-level filesystem backups
ahrens
parents:
4577
diff
changeset
|
2133 |
err = spa_open(fsname, &spa, FTAG); |
4007 | 2134 |
if (err) { |
2135 |
kmem_free(fsname, len + 1); |
|
2136 |
return (err); |
|
2137 |
} |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2138 |
ra = kmem_alloc(sizeof (struct renamesnaparg), KM_SLEEP); |
4007 | 2139 |
ra->dstg = dsl_sync_task_group_create(spa_get_dsl(spa)); |
2140 |
||
2141 |
ra->oldsnap = strchr(oldname, '@') + 1; |
|
2142 |
ra->newsnap = strchr(newname, '@') + 1; |
|
2143 |
*ra->failed = '\0'; |
|
2144 |
||
2145 |
err = dmu_objset_find(fsname, dsl_snapshot_rename_one, ra, |
|
2146 |
DS_FIND_CHILDREN); |
|
2147 |
kmem_free(fsname, len + 1); |
|
2148 |
||
2149 |
if (err == 0) { |
|
2150 |
err = dsl_sync_task_group_wait(ra->dstg); |
|
2151 |
} |
|
2152 |
||
2153 |
for (dst = list_head(&ra->dstg->dstg_tasks); dst; |
|
2154 |
dst = list_next(&ra->dstg->dstg_tasks, dst)) { |
|
2155 |
dsl_dataset_t *ds = dst->dst_arg1; |
|
2156 |
if (dst->dst_err) { |
|
2157 |
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
|
2158 |
(void) strcat(ra->failed, "@"); |
1a9b4fbc0d2a
6479884 want 'zfs rename -r' to recursively rename snapshots (fix lint)
mmusante
parents:
4007
diff
changeset
|
2159 |
(void) strcat(ra->failed, ra->newsnap); |
4007 | 2160 |
} |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2161 |
dsl_dataset_rele(ds, ra->dstg); |
4007 | 2162 |
} |
2163 |
||
4543 | 2164 |
if (err) |
2165 |
(void) strcpy(oldname, ra->failed); |
|
4007 | 2166 |
|
2167 |
dsl_sync_task_group_destroy(ra->dstg); |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2168 |
kmem_free(ra, sizeof (struct renamesnaparg)); |
4007 | 2169 |
spa_close(spa, FTAG); |
2170 |
return (err); |
|
2171 |
} |
|
2172 |
||
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
|
2173 |
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
|
2174 |
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
|
2175 |
{ |
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2176 |
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
|
2177 |
|
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2178 |
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
|
2179 |
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
|
2180 |
|
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2181 |
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
|
2182 |
} |
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2183 |
|
789 | 2184 |
#pragma weak dmu_objset_rename = dsl_dataset_rename |
2185 |
int |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2186 |
dsl_dataset_rename(char *oldname, const char *newname, boolean_t recursive) |
789 | 2187 |
{ |
2188 |
dsl_dir_t *dd; |
|
2199 | 2189 |
dsl_dataset_t *ds; |
789 | 2190 |
const char *tail; |
2191 |
int err; |
|
2192 |
||
2199 | 2193 |
err = dsl_dir_open(oldname, FTAG, &dd, &tail); |
1544 | 2194 |
if (err) |
2195 |
return (err); |
|
789 | 2196 |
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
|
2197 |
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
|
2198 |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2199 |
/* 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
|
2200 |
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
|
2201 |
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
|
2202 |
&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
|
2203 |
|
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2204 |
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
|
2205 |
err = dsl_dir_rename(dd, newname); |
789 | 2206 |
dsl_dir_close(dd, FTAG); |
2207 |
return (err); |
|
2208 |
} |
|
2209 |
if (tail[0] != '@') { |
|
2210 |
/* the name ended in a nonexistant component */ |
|
2211 |
dsl_dir_close(dd, FTAG); |
|
2212 |
return (ENOENT); |
|
2213 |
} |
|
2214 |
||
2199 | 2215 |
dsl_dir_close(dd, FTAG); |
2216 |
||
2217 |
/* new name must be snapshot in same filesystem */ |
|
2218 |
tail = strchr(newname, '@'); |
|
2219 |
if (tail == NULL) |
|
2220 |
return (EINVAL); |
|
2221 |
tail++; |
|
2222 |
if (strncmp(oldname, newname, tail - newname) != 0) |
|
2223 |
return (EXDEV); |
|
789 | 2224 |
|
4007 | 2225 |
if (recursive) { |
2226 |
err = dsl_recursive_rename(oldname, newname); |
|
2227 |
} else { |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2228 |
err = dsl_dataset_hold(oldname, FTAG, &ds); |
4007 | 2229 |
if (err) |
2230 |
return (err); |
|
2199 | 2231 |
|
4007 | 2232 |
err = dsl_sync_task_do(ds->ds_dir->dd_pool, |
2233 |
dsl_dataset_snapshot_rename_check, |
|
2234 |
dsl_dataset_snapshot_rename_sync, ds, (char *)tail, 1); |
|
2199 | 2235 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2236 |
dsl_dataset_rele(ds, FTAG); |
4007 | 2237 |
} |
2199 | 2238 |
|
789 | 2239 |
return (err); |
2240 |
} |
|
2082 | 2241 |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2242 |
struct promotenode { |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2243 |
list_node_t link; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2244 |
dsl_dataset_t *ds; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2245 |
}; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2246 |
|
2199 | 2247 |
struct promotearg { |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2248 |
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
|
2249 |
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
|
2250 |
uint64_t used, comp, uncomp, unique, cloneusedsnap, originusedsnap; |
2199 | 2251 |
}; |
2252 |
||
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2253 |
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
|
2254 |
|
4543 | 2255 |
/* ARGSUSED */ |
2082 | 2256 |
static int |
2199 | 2257 |
dsl_dataset_promote_check(void *arg1, void *arg2, dmu_tx_t *tx) |
2082 | 2258 |
{ |
2199 | 2259 |
dsl_dataset_t *hds = arg1; |
2260 |
struct promotearg *pa = arg2; |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2261 |
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
|
2262 |
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
|
2263 |
int err; |
2199 | 2264 |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2265 |
/* 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
|
2266 |
if (!dsl_dir_is_clone(hds->ds_dir)) |
2082 | 2267 |
return (EINVAL); |
2268 |
||
2199 | 2269 |
/* Since this is so expensive, don't do the preliminary check */ |
2270 |
if (!dmu_tx_is_syncing(tx)) |
|
2271 |
return (0); |
|
2272 |
||
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2273 |
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
|
2274 |
return (EXDEV); |
2082 | 2275 |
|
5367 | 2276 |
/* 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
|
2277 |
snap = list_tail(&pa->clone_snaps); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2278 |
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
|
2279 |
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
|
2280 |
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
|
2281 |
if (err) |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2282 |
return (err); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2283 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2284 |
/* |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2285 |
* 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
|
2286 |
* |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2287 |
* 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
|
2288 |
* to used for each snapshot: |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2289 |
* (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
|
2290 |
* So each snapshot gave birth to: |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2291 |
* (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
|
2292 |
* 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
|
2293 |
* (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
|
2294 |
* Which simplifies to: |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2295 |
* 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
|
2296 |
* 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
|
2297 |
* 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
|
2298 |
*/ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2299 |
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
|
2300 |
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
|
2301 |
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
|
2302 |
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
|
2303 |
snap = list_next(&pa->shared_snaps, snap)) { |
2082 | 2304 |
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
|
2305 |
dsl_dataset_t *ds = snap->ds; |
2082 | 2306 |
|
2307 |
/* 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
|
2308 |
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
|
2309 |
err = dsl_dataset_snap_lookup(hds, ds->ds_snapname, &val); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2310 |
if (err == 0) |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2311 |
return (EEXIST); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2312 |
if (err != ENOENT) |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2313 |
return (err); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2314 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2315 |
/* 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
|
2316 |
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
|
2317 |
continue; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2318 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2319 |
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
|
2320 |
&dlused, &dlcomp, &dluncomp)) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2321 |
return (err); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2322 |
pa->used += dlused; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2323 |
pa->comp += dlcomp; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2324 |
pa->uncomp += dluncomp; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2325 |
} |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2326 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2327 |
/* |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2328 |
* 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
|
2329 |
* 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
|
2330 |
*/ |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2331 |
if (pa->origin_origin) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2332 |
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
|
2333 |
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
|
2334 |
pa->uncomp -= pa->origin_origin->ds_phys->ds_uncompressed_bytes; |
2082 | 2335 |
} |
2336 |
||
2337 |
/* 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
|
2338 |
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
|
2339 |
pa->used); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2340 |
if (err) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2341 |
return (err); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2342 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2343 |
/* |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2344 |
* 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
|
2345 |
* 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
|
2346 |
* 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
|
2347 |
* 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
|
2348 |
*/ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2349 |
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
|
2350 |
uint64_t space; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2351 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2352 |
/* |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2353 |
* 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
|
2354 |
* 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
|
2355 |
* these snaplist_space() -> bplist_space_birthrange() |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2356 |
* 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
|
2357 |
* iterate over all bps. |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2358 |
*/ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2359 |
snap = list_head(&pa->origin_snaps); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2360 |
err = snaplist_space(&pa->shared_snaps, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2361 |
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
|
2362 |
if (err) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2363 |
return (err); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2364 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2365 |
err = snaplist_space(&pa->clone_snaps, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2366 |
snap->ds->ds_origin_txg, &space); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2367 |
if (err) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2368 |
return (err); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2369 |
pa->cloneusedsnap += space; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2370 |
} |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2371 |
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
|
2372 |
err = snaplist_space(&pa->origin_snaps, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2373 |
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
|
2374 |
if (err) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2375 |
return (err); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2376 |
} |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2377 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2378 |
return (0); |
2199 | 2379 |
} |
2082 | 2380 |
|
2199 | 2381 |
static void |
4543 | 2382 |
dsl_dataset_promote_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) |
2199 | 2383 |
{ |
2384 |
dsl_dataset_t *hds = arg1; |
|
2385 |
struct promotearg *pa = arg2; |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2386 |
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
|
2387 |
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
|
2388 |
dsl_dataset_t *origin_head; |
2199 | 2389 |
dsl_dir_t *dd = hds->ds_dir; |
2390 |
dsl_pool_t *dp = hds->ds_dir->dd_pool; |
|
5367 | 2391 |
dsl_dir_t *odd = NULL; |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2392 |
uint64_t oldnext_obj; |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2393 |
int64_t delta; |
2199 | 2394 |
|
2395 |
ASSERT(0 == (hds->ds_phys->ds_flags & DS_FLAG_NOPROMOTE)); |
|
2396 |
||
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2397 |
snap = list_head(&pa->origin_snaps); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2398 |
origin_head = snap->ds; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2399 |
|
2417 | 2400 |
/* |
5367 | 2401 |
* We need to explicitly open odd, since origin_ds's dd will be |
2417 | 2402 |
* changing. |
2403 |
*/ |
|
5367 | 2404 |
VERIFY(0 == dsl_dir_open_obj(dp, origin_ds->ds_dir->dd_object, |
2405 |
NULL, FTAG, &odd)); |
|
2082 | 2406 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2407 |
/* change origin's next snap */ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2408 |
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
|
2409 |
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
|
2410 |
snap = list_tail(&pa->clone_snaps); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2411 |
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
|
2412 |
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
|
2413 |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2414 |
/* change the origin's next clone */ |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2415 |
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
|
2416 |
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
|
2417 |
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
|
2418 |
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
|
2419 |
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
|
2420 |
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
|
2421 |
oldnext_obj, tx)); |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2422 |
} |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2423 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2424 |
/* change origin */ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2425 |
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
|
2426 |
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
|
2427 |
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
|
2428 |
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
|
2429 |
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
|
2430 |
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
|
2431 |
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
|
2432 |
|
2082 | 2433 |
/* move snapshots to this dir */ |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2434 |
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
|
2435 |
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
|
2436 |
dsl_dataset_t *ds = snap->ds; |
2082 | 2437 |
|
7237
f47d41541b14
PSARC 2008/393 zfs primarycache and secondarycache properties
ek110237
parents:
7077
diff
changeset
|
2438 |
/* unregister props as dsl_dir is changing */ |
f47d41541b14
PSARC 2008/393 zfs primarycache and secondarycache properties
ek110237
parents:
7077
diff
changeset
|
2439 |
if (ds->ds_user_ptr) { |
f47d41541b14
PSARC 2008/393 zfs primarycache and secondarycache properties
ek110237
parents:
7077
diff
changeset
|
2440 |
ds->ds_user_evict_func(ds, ds->ds_user_ptr); |
f47d41541b14
PSARC 2008/393 zfs primarycache and secondarycache properties
ek110237
parents:
7077
diff
changeset
|
2441 |
ds->ds_user_ptr = NULL; |
f47d41541b14
PSARC 2008/393 zfs primarycache and secondarycache properties
ek110237
parents:
7077
diff
changeset
|
2442 |
} |
2082 | 2443 |
/* move snap name entry */ |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2444 |
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
|
2445 |
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
|
2446 |
ds->ds_snapname, tx)); |
2199 | 2447 |
VERIFY(0 == zap_add(dp->dp_meta_objset, |
2082 | 2448 |
hds->ds_phys->ds_snapnames_zapobj, ds->ds_snapname, |
2449 |
8, 1, &ds->ds_object, tx)); |
|
2450 |
/* change containing dsl_dir */ |
|
2451 |
dmu_buf_will_dirty(ds->ds_dbuf, tx); |
|
5367 | 2452 |
ASSERT3U(ds->ds_phys->ds_dir_obj, ==, odd->dd_object); |
2082 | 2453 |
ds->ds_phys->ds_dir_obj = dd->dd_object; |
5367 | 2454 |
ASSERT3P(ds->ds_dir, ==, odd); |
2082 | 2455 |
dsl_dir_close(ds->ds_dir, ds); |
2199 | 2456 |
VERIFY(0 == dsl_dir_open_obj(dp, dd->dd_object, |
2082 | 2457 |
NULL, ds, &ds->ds_dir)); |
2458 |
||
2459 |
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
|
2460 |
} |
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 |
/* |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2463 |
* Change space accounting. |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2464 |
* 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
|
2465 |
* 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
|
2466 |
* 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
|
2467 |
*/ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2468 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2469 |
delta = pa->cloneusedsnap - |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2470 |
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
|
2471 |
ASSERT3S(delta, >=, 0); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2472 |
ASSERT3U(pa->used, >=, delta); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2473 |
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
|
2474 |
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
|
2475 |
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
|
2476 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2477 |
delta = pa->originusedsnap - |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2478 |
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
|
2479 |
ASSERT3S(delta, <=, 0); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2480 |
ASSERT3U(pa->used, >=, -delta); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2481 |
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
|
2482 |
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
|
2483 |
-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
|
2484 |
|
5367 | 2485 |
origin_ds->ds_phys->ds_unique_bytes = pa->unique; |
2082 | 2486 |
|
4543 | 2487 |
/* log history record */ |
2488 |
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
|
2489 |
cr, "dataset = %llu", hds->ds_object); |
4543 | 2490 |
|
5367 | 2491 |
dsl_dir_close(odd, FTAG); |
2082 | 2492 |
} |
2493 |
||
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2494 |
static char *snaplist_tag = "snaplist"; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2495 |
/* |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2496 |
* 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
|
2497 |
* (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
|
2498 |
* 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
|
2499 |
* 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
|
2500 |
*/ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2501 |
static int |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2502 |
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
|
2503 |
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
|
2504 |
{ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2505 |
uint64_t obj = last_obj; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2506 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2507 |
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
|
2508 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2509 |
list_create(l, sizeof (struct promotenode), |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2510 |
offsetof(struct promotenode, link)); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2511 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2512 |
while (obj != first_obj) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2513 |
dsl_dataset_t *ds; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2514 |
struct promotenode *snap; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2515 |
int err; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2516 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2517 |
if (own) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2518 |
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
|
2519 |
0, snaplist_tag, &ds); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2520 |
if (err == 0) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2521 |
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
|
2522 |
} else { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2523 |
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
|
2524 |
} |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2525 |
if (err == ENOENT) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2526 |
/* lost race with snapshot destroy */ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2527 |
struct promotenode *last = list_tail(l); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2528 |
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
|
2529 |
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
|
2530 |
continue; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2531 |
} else if (err) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2532 |
return (err); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2533 |
} |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2534 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2535 |
if (first_obj == 0) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2536 |
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
|
2537 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2538 |
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
|
2539 |
snap->ds = ds; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2540 |
list_insert_tail(l, snap); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2541 |
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
|
2542 |
} |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2543 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2544 |
return (0); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2545 |
} |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2546 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2547 |
static int |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2548 |
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
|
2549 |
{ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2550 |
struct promotenode *snap; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2551 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2552 |
*spacep = 0; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2553 |
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
|
2554 |
uint64_t used; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2555 |
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
|
2556 |
mintxg, UINT64_MAX, &used); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2557 |
if (err) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2558 |
return (err); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2559 |
*spacep += used; |
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 |
return (0); |
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 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2564 |
static void |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2565 |
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
|
2566 |
{ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2567 |
struct promotenode *snap; |
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 |
if (!list_link_active(&l->list_head)) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2570 |
return; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2571 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2572 |
while ((snap = list_tail(l)) != NULL) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2573 |
list_remove(l, snap); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2574 |
if (own) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2575 |
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
|
2576 |
else |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2577 |
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
|
2578 |
kmem_free(snap, sizeof (struct promotenode)); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2579 |
} |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2580 |
list_destroy(l); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2581 |
} |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2582 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2583 |
/* |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2584 |
* Promote a clone. Nomenclature note: |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2585 |
* "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
|
2586 |
* "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
|
2587 |
* "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
|
2588 |
* (filesystem/volume) for the origin |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2589 |
* "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
|
2590 |
* 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
|
2591 |
*/ |
2082 | 2592 |
int |
2593 |
dsl_dataset_promote(const char *name) |
|
2594 |
{ |
|
2595 |
dsl_dataset_t *ds; |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2596 |
dsl_dir_t *dd; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2597 |
dsl_pool_t *dp; |
2082 | 2598 |
dmu_object_info_t doi; |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2599 |
struct promotearg pa = { 0 }; |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2600 |
struct promotenode *snap; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2601 |
int err; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2602 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2603 |
err = dsl_dataset_hold(name, FTAG, &ds); |
2082 | 2604 |
if (err) |
2605 |
return (err); |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2606 |
dd = ds->ds_dir; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2607 |
dp = dd->dd_pool; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2608 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2609 |
err = dmu_object_info(dp->dp_meta_objset, |
2082 | 2610 |
ds->ds_phys->ds_snapnames_zapobj, &doi); |
2611 |
if (err) { |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2612 |
dsl_dataset_rele(ds, FTAG); |
2082 | 2613 |
return (err); |
2614 |
} |
|
2615 |
||
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2616 |
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
|
2617 |
dsl_dataset_rele(ds, FTAG); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2618 |
return (EINVAL); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2619 |
} |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2620 |
|
2082 | 2621 |
/* |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2622 |
* 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
|
2623 |
* 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
|
2624 |
* 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
|
2625 |
* namespace. |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2626 |
*/ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2627 |
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
|
2628 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2629 |
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
|
2630 |
&pa.shared_snaps); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2631 |
if (err != 0) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2632 |
goto out; |
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 |
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
|
2635 |
if (err != 0) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2636 |
goto out; |
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 = list_head(&pa.shared_snaps); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2639 |
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
|
2640 |
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
|
2641 |
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
|
2642 |
if (err != 0) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2643 |
goto out; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2644 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2645 |
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
|
2646 |
err = dsl_dataset_own_obj(dp, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2647 |
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
|
2648 |
0, FTAG, &pa.origin_origin); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2649 |
if (err != 0) |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2650 |
goto out; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2651 |
} |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2652 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2653 |
out: |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2654 |
rw_exit(&dp->dp_config_rwlock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2655 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2656 |
/* |
2082 | 2657 |
* Add in 128x the snapnames zapobj size, since we will be moving |
2658 |
* a bunch of snapnames to the promoted ds, and dirtying their |
|
2659 |
* bonus buffers. |
|
2660 |
*/ |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2661 |
if (err == 0) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2662 |
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
|
2663 |
dsl_dataset_promote_sync, ds, &pa, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2664 |
2 + 2 * doi.doi_physical_blks); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2665 |
} |
7390
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 |
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
|
2668 |
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
|
2669 |
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
|
2670 |
if (pa.origin_origin) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2671 |
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
|
2672 |
dsl_dataset_rele(ds, FTAG); |
2082 | 2673 |
return (err); |
2674 |
} |
|
3912 | 2675 |
|
5367 | 2676 |
struct cloneswaparg { |
2677 |
dsl_dataset_t *cds; /* clone dataset */ |
|
2678 |
dsl_dataset_t *ohds; /* origin's head dataset */ |
|
2679 |
boolean_t force; |
|
5481
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2680 |
int64_t unused_refres_delta; /* change in unconsumed refreservation */ |
5367 | 2681 |
}; |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2682 |
|
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2683 |
/* ARGSUSED */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2684 |
static int |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2685 |
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
|
2686 |
{ |
5367 | 2687 |
struct cloneswaparg *csa = arg1; |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2688 |
|
5367 | 2689 |
/* they should both be heads */ |
2690 |
if (dsl_dataset_is_snapshot(csa->cds) || |
|
2691 |
dsl_dataset_is_snapshot(csa->ohds)) |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2692 |
return (EINVAL); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2693 |
|
5367 | 2694 |
/* the branch point should be just before them */ |
2695 |
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
|
2696 |
return (EINVAL); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2697 |
|
5367 | 2698 |
/* cds should be the clone */ |
2699 |
if (csa->cds->ds_prev->ds_phys->ds_next_snap_obj != |
|
2700 |
csa->ohds->ds_object) |
|
2701 |
return (EINVAL); |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2702 |
|
5367 | 2703 |
/* the clone should be a child of the origin */ |
2704 |
if (csa->cds->ds_dir->dd_parent != csa->ohds->ds_dir) |
|
2705 |
return (EINVAL); |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2706 |
|
5367 | 2707 |
/* ohds shouldn't be modified unless 'force' */ |
2708 |
if (!csa->force && dsl_dataset_modified_since_lastsnap(csa->ohds)) |
|
2709 |
return (ETXTBSY); |
|
5481
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2710 |
|
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2711 |
/* adjust amount of any unconsumed refreservation */ |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2712 |
csa->unused_refres_delta = |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2713 |
(int64_t)MIN(csa->ohds->ds_reserved, |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2714 |
csa->ohds->ds_phys->ds_unique_bytes) - |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2715 |
(int64_t)MIN(csa->ohds->ds_reserved, |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2716 |
csa->cds->ds_phys->ds_unique_bytes); |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2717 |
|
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2718 |
if (csa->unused_refres_delta > 0 && |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2719 |
csa->unused_refres_delta > |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2720 |
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
|
2721 |
return (ENOSPC); |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2722 |
|
5367 | 2723 |
return (0); |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2724 |
} |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2725 |
|
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2726 |
/* ARGSUSED */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2727 |
static void |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2728 |
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
|
2729 |
{ |
5367 | 2730 |
struct cloneswaparg *csa = arg1; |
2731 |
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
|
2732 |
|
5481
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2733 |
ASSERT(csa->cds->ds_reserved == 0); |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2734 |
ASSERT(csa->cds->ds_quota == csa->ohds->ds_quota); |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2735 |
|
5367 | 2736 |
dmu_buf_will_dirty(csa->cds->ds_dbuf, tx); |
2737 |
dmu_buf_will_dirty(csa->ohds->ds_dbuf, tx); |
|
2738 |
dmu_buf_will_dirty(csa->cds->ds_prev->ds_dbuf, tx); |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2739 |
|
5367 | 2740 |
if (csa->cds->ds_user_ptr != NULL) { |
2741 |
csa->cds->ds_user_evict_func(csa->cds, csa->cds->ds_user_ptr); |
|
2742 |
csa->cds->ds_user_ptr = NULL; |
|
2743 |
} |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2744 |
|
5367 | 2745 |
if (csa->ohds->ds_user_ptr != NULL) { |
2746 |
csa->ohds->ds_user_evict_func(csa->ohds, |
|
2747 |
csa->ohds->ds_user_ptr); |
|
2748 |
csa->ohds->ds_user_ptr = NULL; |
|
2749 |
} |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2750 |
|
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2751 |
/* reset origin's unique bytes */ |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2752 |
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
|
2753 |
csa->cds->ds_prev->ds_phys->ds_prev_snap_txg, UINT64_MAX, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2754 |
&csa->cds->ds_prev->ds_phys->ds_unique_bytes)); |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2755 |
|
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2756 |
/* swap blkptrs */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2757 |
{ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2758 |
blkptr_t tmp; |
5367 | 2759 |
tmp = csa->ohds->ds_phys->ds_bp; |
2760 |
csa->ohds->ds_phys->ds_bp = csa->cds->ds_phys->ds_bp; |
|
2761 |
csa->cds->ds_phys->ds_bp = tmp; |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2762 |
} |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2763 |
|
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2764 |
/* set dd_*_bytes */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2765 |
{ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2766 |
int64_t dused, dcomp, duncomp; |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2767 |
uint64_t cdl_used, cdl_comp, cdl_uncomp; |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2768 |
uint64_t odl_used, odl_comp, odl_uncomp; |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2769 |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2770 |
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
|
2771 |
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
|
2772 |
|
5367 | 2773 |
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
|
2774 |
&cdl_comp, &cdl_uncomp)); |
5367 | 2775 |
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
|
2776 |
&odl_comp, &odl_uncomp)); |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2777 |
|
5367 | 2778 |
dused = csa->cds->ds_phys->ds_used_bytes + cdl_used - |
2779 |
(csa->ohds->ds_phys->ds_used_bytes + odl_used); |
|
2780 |
dcomp = csa->cds->ds_phys->ds_compressed_bytes + cdl_comp - |
|
2781 |
(csa->ohds->ds_phys->ds_compressed_bytes + odl_comp); |
|
2782 |
duncomp = csa->cds->ds_phys->ds_uncompressed_bytes + |
|
2783 |
cdl_uncomp - |
|
2784 |
(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
|
2785 |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2786 |
dsl_dir_diduse_space(csa->ohds->ds_dir, DD_USED_HEAD, |
5367 | 2787 |
dused, dcomp, duncomp, tx); |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2788 |
dsl_dir_diduse_space(csa->cds->ds_dir, DD_USED_HEAD, |
5367 | 2789 |
-dused, -dcomp, -duncomp, tx); |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2790 |
|
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2791 |
/* |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2792 |
* 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
|
2793 |
* 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
|
2794 |
* 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
|
2795 |
* changing that affects the snapused). |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2796 |
*/ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2797 |
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
|
2798 |
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
|
2799 |
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
|
2800 |
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
|
2801 |
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
|
2802 |
DD_USED_HEAD, DD_USED_SNAP, tx); |
5367 | 2803 |
} |
2804 |
||
2805 |
#define SWITCH64(x, y) \ |
|
2806 |
{ \ |
|
2807 |
uint64_t __tmp = (x); \ |
|
2808 |
(x) = (y); \ |
|
2809 |
(y) = __tmp; \ |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2810 |
} |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2811 |
|
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2812 |
/* swap ds_*_bytes */ |
5367 | 2813 |
SWITCH64(csa->ohds->ds_phys->ds_used_bytes, |
2814 |
csa->cds->ds_phys->ds_used_bytes); |
|
2815 |
SWITCH64(csa->ohds->ds_phys->ds_compressed_bytes, |
|
2816 |
csa->cds->ds_phys->ds_compressed_bytes); |
|
2817 |
SWITCH64(csa->ohds->ds_phys->ds_uncompressed_bytes, |
|
2818 |
csa->cds->ds_phys->ds_uncompressed_bytes); |
|
5481
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2819 |
SWITCH64(csa->ohds->ds_phys->ds_unique_bytes, |
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 |
/* 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
|
2823 |
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
|
2824 |
csa->unused_refres_delta, 0, 0, tx); |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2825 |
|
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2826 |
/* swap deadlists */ |
5367 | 2827 |
bplist_close(&csa->cds->ds_deadlist); |
2828 |
bplist_close(&csa->ohds->ds_deadlist); |
|
2829 |
SWITCH64(csa->ohds->ds_phys->ds_deadlist_obj, |
|
2830 |
csa->cds->ds_phys->ds_deadlist_obj); |
|
2831 |
VERIFY(0 == bplist_open(&csa->cds->ds_deadlist, dp->dp_meta_objset, |
|
2832 |
csa->cds->ds_phys->ds_deadlist_obj)); |
|
2833 |
VERIFY(0 == bplist_open(&csa->ohds->ds_deadlist, dp->dp_meta_objset, |
|
2834 |
csa->ohds->ds_phys->ds_deadlist_obj)); |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2835 |
} |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2836 |
|
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2837 |
/* |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2838 |
* Swap 'clone' with its origin head file system. Used at the end |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2839 |
* of "online recv" to swizzle the file system to the new version. |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2840 |
*/ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2841 |
int |
5367 | 2842 |
dsl_dataset_clone_swap(dsl_dataset_t *clone, dsl_dataset_t *origin_head, |
2843 |
boolean_t force) |
|
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2844 |
{ |
5367 | 2845 |
struct cloneswaparg csa; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2846 |
int error; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2847 |
|
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2848 |
ASSERT(clone->ds_owner); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2849 |
ASSERT(origin_head->ds_owner); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2850 |
retry: |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2851 |
/* Need exclusive access for the swap */ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2852 |
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
|
2853 |
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
|
2854 |
rw_exit(&clone->ds_rwlock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2855 |
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
|
2856 |
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
|
2857 |
rw_exit(&origin_head->ds_rwlock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2858 |
goto retry; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2859 |
} |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2860 |
} |
5367 | 2861 |
csa.cds = clone; |
2862 |
csa.ohds = origin_head; |
|
2863 |
csa.force = force; |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2864 |
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
|
2865 |
dsl_dataset_clone_swap_check, |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2866 |
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
|
2867 |
return (error); |
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 |
|
3912 | 2870 |
/* |
2871 |
* Given a pool name and a dataset object number in that pool, |
|
2872 |
* return the name of that dataset. |
|
2873 |
*/ |
|
2874 |
int |
|
2875 |
dsl_dsobj_to_dsname(char *pname, uint64_t obj, char *buf) |
|
2876 |
{ |
|
2877 |
spa_t *spa; |
|
2878 |
dsl_pool_t *dp; |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2879 |
dsl_dataset_t *ds; |
3912 | 2880 |
int error; |
2881 |
||
2882 |
if ((error = spa_open(pname, &spa, FTAG)) != 0) |
|
2883 |
return (error); |
|
2884 |
dp = spa_get_dsl(spa); |
|
2885 |
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
|
2886 |
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
|
2887 |
dsl_dataset_name(ds, buf); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2888 |
dsl_dataset_rele(ds, FTAG); |
3912 | 2889 |
} |
2890 |
rw_exit(&dp->dp_config_rwlock); |
|
2891 |
spa_close(spa, FTAG); |
|
2892 |
||
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2893 |
return (error); |
3912 | 2894 |
} |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2895 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2896 |
int |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2897 |
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
|
2898 |
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
|
2899 |
{ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2900 |
int error = 0; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2901 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2902 |
ASSERT3S(asize, >, 0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2903 |
|
5831
48655d6b290b
6630761 In sub-filesystem, available space is less than refreservation space
ck153898
parents:
5712
diff
changeset
|
2904 |
/* |
48655d6b290b
6630761 In sub-filesystem, available space is less than refreservation space
ck153898
parents:
5712
diff
changeset
|
2905 |
* *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
|
2906 |
* unconsumed refreservation space. |
48655d6b290b
6630761 In sub-filesystem, available space is less than refreservation space
ck153898
parents:
5712
diff
changeset
|
2907 |
*/ |
48655d6b290b
6630761 In sub-filesystem, available space is less than refreservation space
ck153898
parents:
5712
diff
changeset
|
2908 |
*ref_rsrv = 0; |
48655d6b290b
6630761 In sub-filesystem, available space is less than refreservation space
ck153898
parents:
5712
diff
changeset
|
2909 |
|
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2910 |
mutex_enter(&ds->ds_lock); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2911 |
/* |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2912 |
* Make a space adjustment for reserved bytes. |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2913 |
*/ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2914 |
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
|
2915 |
ASSERT3U(*used, >=, |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2916 |
ds->ds_reserved - ds->ds_phys->ds_unique_bytes); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2917 |
*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
|
2918 |
*ref_rsrv = |
48655d6b290b
6630761 In sub-filesystem, available space is less than refreservation space
ck153898
parents:
5712
diff
changeset
|
2919 |
asize - MIN(asize, parent_delta(ds, asize + inflight)); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2920 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2921 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2922 |
if (!check_quota || ds->ds_quota == 0) { |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2923 |
mutex_exit(&ds->ds_lock); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2924 |
return (0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2925 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2926 |
/* |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2927 |
* 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
|
2928 |
* 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
|
2929 |
* 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
|
2930 |
* may free up space for us). |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2931 |
*/ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2932 |
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
|
2933 |
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
|
2934 |
error = ERESTART; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2935 |
else |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2936 |
error = EDQUOT; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2937 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2938 |
mutex_exit(&ds->ds_lock); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2939 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2940 |
return (error); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2941 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2942 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2943 |
/* ARGSUSED */ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2944 |
static int |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2945 |
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
|
2946 |
{ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2947 |
dsl_dataset_t *ds = arg1; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2948 |
uint64_t *quotap = arg2; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2949 |
uint64_t new_quota = *quotap; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2950 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2951 |
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
|
2952 |
return (ENOTSUP); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2953 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2954 |
if (new_quota == 0) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2955 |
return (0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2956 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2957 |
if (new_quota < ds->ds_phys->ds_used_bytes || |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2958 |
new_quota < ds->ds_reserved) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2959 |
return (ENOSPC); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2960 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2961 |
return (0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2962 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2963 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2964 |
/* ARGSUSED */ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2965 |
void |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2966 |
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
|
2967 |
{ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2968 |
dsl_dataset_t *ds = arg1; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2969 |
uint64_t *quotap = arg2; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2970 |
uint64_t new_quota = *quotap; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2971 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2972 |
dmu_buf_will_dirty(ds->ds_dbuf, tx); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2973 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2974 |
ds->ds_quota = new_quota; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2975 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2976 |
dsl_prop_set_uint64_sync(ds->ds_dir, "refquota", new_quota, cr, tx); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2977 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2978 |
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
|
2979 |
tx, cr, "%lld dataset = %llu ", |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2980 |
(longlong_t)new_quota, ds->ds_object); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2981 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2982 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2983 |
int |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2984 |
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
|
2985 |
{ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2986 |
dsl_dataset_t *ds; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2987 |
int err; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2988 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2989 |
err = dsl_dataset_hold(dsname, FTAG, &ds); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2990 |
if (err) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2991 |
return (err); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
2992 |
|
5481
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2993 |
if (quota != ds->ds_quota) { |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2994 |
/* |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2995 |
* 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
|
2996 |
* want to make sure the file freeing takes effect. |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2997 |
*/ |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2998 |
txg_wait_open(ds->ds_dir->dd_pool, 0); |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2999 |
|
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3000 |
err = dsl_sync_task_do(ds->ds_dir->dd_pool, |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3001 |
dsl_dataset_set_quota_check, dsl_dataset_set_quota_sync, |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3002 |
ds, "a, 0); |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3003 |
} |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3004 |
dsl_dataset_rele(ds, FTAG); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3005 |
return (err); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3006 |
} |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3007 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3008 |
static int |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3009 |
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
|
3010 |
{ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3011 |
dsl_dataset_t *ds = arg1; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3012 |
uint64_t *reservationp = arg2; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3013 |
uint64_t new_reservation = *reservationp; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3014 |
int64_t delta; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3015 |
uint64_t unique; |
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 |
if (new_reservation > INT64_MAX) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3018 |
return (EOVERFLOW); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3019 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3020 |
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
|
3021 |
SPA_VERSION_REFRESERVATION) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3022 |
return (ENOTSUP); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3023 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3024 |
if (dsl_dataset_is_snapshot(ds)) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3025 |
return (EINVAL); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3026 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3027 |
/* |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3028 |
* 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
|
3029 |
* space estimates may be inaccurate. |
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 (!dmu_tx_is_syncing(tx)) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3032 |
return (0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3033 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3034 |
mutex_enter(&ds->ds_lock); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3035 |
unique = dsl_dataset_unique(ds); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3036 |
delta = MAX(unique, new_reservation) - MAX(unique, ds->ds_reserved); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3037 |
mutex_exit(&ds->ds_lock); |
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 (delta > 0 && |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3040 |
delta > dsl_dir_space_available(ds->ds_dir, NULL, 0, TRUE)) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3041 |
return (ENOSPC); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3042 |
if (delta > 0 && ds->ds_quota > 0 && |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3043 |
new_reservation > ds->ds_quota) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3044 |
return (ENOSPC); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3045 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3046 |
return (0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3047 |
} |
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 |
/* ARGSUSED */ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3050 |
static void |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3051 |
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
|
3052 |
dmu_tx_t *tx) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3053 |
{ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3054 |
dsl_dataset_t *ds = arg1; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3055 |
uint64_t *reservationp = arg2; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3056 |
uint64_t new_reservation = *reservationp; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3057 |
uint64_t unique; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3058 |
int64_t delta; |
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 |
dmu_buf_will_dirty(ds->ds_dbuf, tx); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3061 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3062 |
mutex_enter(&ds->ds_lock); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3063 |
unique = dsl_dataset_unique(ds); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3064 |
delta = MAX(0, (int64_t)(new_reservation - unique)) - |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3065 |
MAX(0, (int64_t)(ds->ds_reserved - unique)); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3066 |
ds->ds_reserved = new_reservation; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3067 |
mutex_exit(&ds->ds_lock); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3068 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3069 |
dsl_prop_set_uint64_sync(ds->ds_dir, "refreservation", |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3070 |
new_reservation, cr, tx); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3071 |
|
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
3072 |
dsl_dir_diduse_space(ds->ds_dir, DD_USED_REFRSRV, delta, 0, 0, tx); |
5378
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 |
spa_history_internal_log(LOG_DS_REFRESERV, |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3075 |
ds->ds_dir->dd_pool->dp_spa, tx, cr, "%lld dataset = %llu", |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3076 |
(longlong_t)new_reservation, |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3077 |
ds->ds_dir->dd_phys->dd_head_dataset_obj); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3078 |
} |
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 |
int |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3081 |
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
|
3082 |
{ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3083 |
dsl_dataset_t *ds; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3084 |
int err; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3085 |
|
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3086 |
err = dsl_dataset_hold(dsname, FTAG, &ds); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3087 |
if (err) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3088 |
return (err); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3089 |
|
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3090 |
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
|
3091 |
dsl_dataset_set_reservation_check, |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3092 |
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
|
3093 |
dsl_dataset_rele(ds, FTAG); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3094 |
return (err); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3095 |
} |