Mercurial > illumos > illumos-gate
annotate usr/src/uts/common/fs/zfs/dsl_dataset.c @ 12470:54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
author | Matthew Ahrens <Matthew.Ahrens@Sun.COM> |
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date | Fri, 21 May 2010 17:29:22 -0700 |
parents | c77e20e4e046 |
children | 693dd2cad55f |
rev | line source |
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789 | 1 /* |
2 * CDDL HEADER START | |
3 * | |
4 * The contents of this file are subject to the terms of the | |
1544 | 5 * Common Development and Distribution License (the "License"). |
6 * You may not use this file except in compliance with the License. | |
789 | 7 * |
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 * or http://www.opensolaris.org/os/licensing. | |
10 * See the License for the specific language governing permissions | |
11 * and limitations under the License. | |
12 * | |
13 * When distributing Covered Code, include this CDDL HEADER in each | |
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 * If applicable, add the following below this CDDL HEADER, with the | |
16 * fields enclosed by brackets "[]" replaced with your own identifying | |
17 * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 * | |
19 * CDDL HEADER END | |
20 */ | |
21 /* | |
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22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
789 | 23 */ |
24 | |
25 #include <sys/dmu_objset.h> | |
26 #include <sys/dsl_dataset.h> | |
27 #include <sys/dsl_dir.h> | |
2082 | 28 #include <sys/dsl_prop.h> |
2199 | 29 #include <sys/dsl_synctask.h> |
789 | 30 #include <sys/dmu_traverse.h> |
31 #include <sys/dmu_tx.h> | |
32 #include <sys/arc.h> | |
33 #include <sys/zio.h> | |
34 #include <sys/zap.h> | |
35 #include <sys/unique.h> | |
36 #include <sys/zfs_context.h> | |
4007 | 37 #include <sys/zfs_ioctl.h> |
4543 | 38 #include <sys/spa.h> |
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39 #include <sys/zfs_znode.h> |
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40 #include <sys/zvol.h> |
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41 #include <sys/dsl_scan.h> |
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42 #include <sys/dsl_deadlist.h> |
789 | 43 |
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44 /* |
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45 * Enable/disable prefetching of dedup-ed blocks which are going to be freed. |
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46 */ |
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47 int zfs_dedup_prefetch = 1; |
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48 |
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49 static char *dsl_reaper = "the grim reaper"; |
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50 |
2199 | 51 static dsl_checkfunc_t dsl_dataset_destroy_begin_check; |
52 static dsl_syncfunc_t dsl_dataset_destroy_begin_sync; | |
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53 static dsl_syncfunc_t dsl_dataset_set_reservation_sync; |
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54 |
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55 #define SWITCH64(x, y) \ |
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56 { \ |
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57 uint64_t __tmp = (x); \ |
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58 (x) = (y); \ |
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59 (y) = __tmp; \ |
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60 } |
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61 |
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62 #define DS_REF_MAX (1ULL << 62) |
789 | 63 |
64 #define DSL_DEADLIST_BLOCKSIZE SPA_MAXBLOCKSIZE | |
65 | |
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66 #define DSL_DATASET_IS_DESTROYED(ds) ((ds)->ds_owner == dsl_reaper) |
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67 |
789 | 68 |
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69 /* |
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70 * Figure out how much of this delta should be propogated to the dsl_dir |
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71 * layer. If there's a refreservation, that space has already been |
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72 * partially accounted for in our ancestors. |
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73 */ |
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74 static int64_t |
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75 parent_delta(dsl_dataset_t *ds, int64_t delta) |
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76 { |
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77 uint64_t old_bytes, new_bytes; |
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78 |
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79 if (ds->ds_reserved == 0) |
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80 return (delta); |
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81 |
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82 old_bytes = MAX(ds->ds_phys->ds_unique_bytes, ds->ds_reserved); |
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83 new_bytes = MAX(ds->ds_phys->ds_unique_bytes + delta, ds->ds_reserved); |
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84 |
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85 ASSERT3U(ABS((int64_t)(new_bytes - old_bytes)), <=, ABS(delta)); |
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86 return (new_bytes - old_bytes); |
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87 } |
789 | 88 |
89 void | |
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90 dsl_dataset_block_born(dsl_dataset_t *ds, const blkptr_t *bp, dmu_tx_t *tx) |
789 | 91 { |
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92 int used = bp_get_dsize_sync(tx->tx_pool->dp_spa, bp); |
789 | 93 int compressed = BP_GET_PSIZE(bp); |
94 int uncompressed = BP_GET_UCSIZE(bp); | |
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95 int64_t delta; |
789 | 96 |
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97 dprintf_bp(bp, "ds=%p", ds); |
789 | 98 |
99 ASSERT(dmu_tx_is_syncing(tx)); | |
100 /* It could have been compressed away to nothing */ | |
101 if (BP_IS_HOLE(bp)) | |
102 return; | |
103 ASSERT(BP_GET_TYPE(bp) != DMU_OT_NONE); | |
104 ASSERT3U(BP_GET_TYPE(bp), <, DMU_OT_NUMTYPES); | |
105 if (ds == NULL) { | |
106 /* | |
107 * Account for the meta-objset space in its placeholder | |
108 * dsl_dir. | |
109 */ | |
110 ASSERT3U(compressed, ==, uncompressed); /* it's all metadata */ | |
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111 dsl_dir_diduse_space(tx->tx_pool->dp_mos_dir, DD_USED_HEAD, |
789 | 112 used, compressed, uncompressed, tx); |
113 dsl_dir_dirty(tx->tx_pool->dp_mos_dir, tx); | |
114 return; | |
115 } | |
116 dmu_buf_will_dirty(ds->ds_dbuf, tx); | |
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117 |
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118 mutex_enter(&ds->ds_dir->dd_lock); |
789 | 119 mutex_enter(&ds->ds_lock); |
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120 delta = parent_delta(ds, used); |
789 | 121 ds->ds_phys->ds_used_bytes += used; |
122 ds->ds_phys->ds_compressed_bytes += compressed; | |
123 ds->ds_phys->ds_uncompressed_bytes += uncompressed; | |
124 ds->ds_phys->ds_unique_bytes += used; | |
125 mutex_exit(&ds->ds_lock); | |
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126 dsl_dir_diduse_space(ds->ds_dir, DD_USED_HEAD, delta, |
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127 compressed, uncompressed, tx); |
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128 dsl_dir_transfer_space(ds->ds_dir, used - delta, |
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129 DD_USED_REFRSRV, DD_USED_HEAD, tx); |
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130 mutex_exit(&ds->ds_dir->dd_lock); |
789 | 131 } |
132 | |
6992 | 133 int |
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134 dsl_dataset_block_kill(dsl_dataset_t *ds, const blkptr_t *bp, dmu_tx_t *tx, |
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135 boolean_t async) |
789 | 136 { |
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137 if (BP_IS_HOLE(bp)) |
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138 return (0); |
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139 |
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140 ASSERT(dmu_tx_is_syncing(tx)); |
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141 ASSERT(bp->blk_birth <= tx->tx_txg); |
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142 |
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143 int used = bp_get_dsize_sync(tx->tx_pool->dp_spa, bp); |
789 | 144 int compressed = BP_GET_PSIZE(bp); |
145 int uncompressed = BP_GET_UCSIZE(bp); | |
146 | |
147 ASSERT(used > 0); | |
148 if (ds == NULL) { | |
149 /* | |
150 * Account for the meta-objset space in its placeholder | |
151 * dataset. | |
152 */ | |
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153 dsl_free(tx->tx_pool, tx->tx_txg, bp); |
789 | 154 |
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155 dsl_dir_diduse_space(tx->tx_pool->dp_mos_dir, DD_USED_HEAD, |
789 | 156 -used, -compressed, -uncompressed, tx); |
157 dsl_dir_dirty(tx->tx_pool->dp_mos_dir, tx); | |
6992 | 158 return (used); |
789 | 159 } |
160 ASSERT3P(tx->tx_pool, ==, ds->ds_dir->dd_pool); | |
161 | |
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162 ASSERT(!dsl_dataset_is_snapshot(ds)); |
789 | 163 dmu_buf_will_dirty(ds->ds_dbuf, tx); |
164 | |
165 if (bp->blk_birth > ds->ds_phys->ds_prev_snap_txg) { | |
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166 int64_t delta; |
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167 |
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168 dprintf_bp(bp, "freeing ds=%llu", ds->ds_object); |
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169 dsl_free(tx->tx_pool, tx->tx_txg, bp); |
789 | 170 |
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171 mutex_enter(&ds->ds_dir->dd_lock); |
789 | 172 mutex_enter(&ds->ds_lock); |
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173 ASSERT(ds->ds_phys->ds_unique_bytes >= used || |
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174 !DS_UNIQUE_IS_ACCURATE(ds)); |
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175 delta = parent_delta(ds, -used); |
789 | 176 ds->ds_phys->ds_unique_bytes -= used; |
177 mutex_exit(&ds->ds_lock); | |
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178 dsl_dir_diduse_space(ds->ds_dir, DD_USED_HEAD, |
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179 delta, -compressed, -uncompressed, tx); |
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180 dsl_dir_transfer_space(ds->ds_dir, -used - delta, |
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181 DD_USED_REFRSRV, DD_USED_HEAD, tx); |
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182 mutex_exit(&ds->ds_dir->dd_lock); |
789 | 183 } else { |
184 dprintf_bp(bp, "putting on dead list: %s", ""); | |
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185 if (async) { |
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186 /* |
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187 * We are here as part of zio's write done callback, |
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188 * which means we're a zio interrupt thread. We can't |
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189 * call dsl_deadlist_insert() now because it may block |
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190 * waiting for I/O. Instead, put bp on the deferred |
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191 * queue and let dsl_pool_sync() finish the job. |
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192 */ |
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193 bplist_append(&ds->ds_pending_deadlist, bp); |
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194 } else { |
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195 dsl_deadlist_insert(&ds->ds_deadlist, bp, tx); |
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196 } |
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197 ASSERT3U(ds->ds_prev->ds_object, ==, |
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198 ds->ds_phys->ds_prev_snap_obj); |
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199 ASSERT(ds->ds_prev->ds_phys->ds_num_children > 0); |
789 | 200 /* if (bp->blk_birth > prev prev snap txg) prev unique += bs */ |
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201 if (ds->ds_prev->ds_phys->ds_next_snap_obj == |
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202 ds->ds_object && bp->blk_birth > |
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203 ds->ds_prev->ds_phys->ds_prev_snap_txg) { |
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204 dmu_buf_will_dirty(ds->ds_prev->ds_dbuf, tx); |
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205 mutex_enter(&ds->ds_prev->ds_lock); |
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206 ds->ds_prev->ds_phys->ds_unique_bytes += used; |
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207 mutex_exit(&ds->ds_prev->ds_lock); |
789 | 208 } |
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209 if (bp->blk_birth > ds->ds_dir->dd_origin_txg) { |
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210 dsl_dir_transfer_space(ds->ds_dir, used, |
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211 DD_USED_HEAD, DD_USED_SNAP, tx); |
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212 } |
789 | 213 } |
214 mutex_enter(&ds->ds_lock); | |
215 ASSERT3U(ds->ds_phys->ds_used_bytes, >=, used); | |
216 ds->ds_phys->ds_used_bytes -= used; | |
217 ASSERT3U(ds->ds_phys->ds_compressed_bytes, >=, compressed); | |
218 ds->ds_phys->ds_compressed_bytes -= compressed; | |
219 ASSERT3U(ds->ds_phys->ds_uncompressed_bytes, >=, uncompressed); | |
220 ds->ds_phys->ds_uncompressed_bytes -= uncompressed; | |
221 mutex_exit(&ds->ds_lock); | |
6992 | 222 |
223 return (used); | |
789 | 224 } |
225 | |
1544 | 226 uint64_t |
227 dsl_dataset_prev_snap_txg(dsl_dataset_t *ds) | |
789 | 228 { |
2885 | 229 uint64_t trysnap = 0; |
230 | |
789 | 231 if (ds == NULL) |
1544 | 232 return (0); |
789 | 233 /* |
234 * The snapshot creation could fail, but that would cause an | |
235 * incorrect FALSE return, which would only result in an | |
236 * overestimation of the amount of space that an operation would | |
237 * consume, which is OK. | |
238 * | |
239 * There's also a small window where we could miss a pending | |
240 * snapshot, because we could set the sync task in the quiescing | |
241 * phase. So this should only be used as a guess. | |
242 */ | |
2885 | 243 if (ds->ds_trysnap_txg > |
244 spa_last_synced_txg(ds->ds_dir->dd_pool->dp_spa)) | |
245 trysnap = ds->ds_trysnap_txg; | |
246 return (MAX(ds->ds_phys->ds_prev_snap_txg, trysnap)); | |
1544 | 247 } |
248 | |
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249 boolean_t |
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250 dsl_dataset_block_freeable(dsl_dataset_t *ds, const blkptr_t *bp, |
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251 uint64_t blk_birth) |
1544 | 252 { |
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253 if (blk_birth <= dsl_dataset_prev_snap_txg(ds)) |
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254 return (B_FALSE); |
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255 |
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256 if (zfs_dedup_prefetch && bp && BP_GET_DEDUP(bp)) |
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257 ddt_prefetch(dsl_dataset_get_spa(ds), bp); |
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258 |
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259 return (B_TRUE); |
789 | 260 } |
261 | |
262 /* ARGSUSED */ | |
263 static void | |
264 dsl_dataset_evict(dmu_buf_t *db, void *dsv) | |
265 { | |
266 dsl_dataset_t *ds = dsv; | |
267 | |
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268 ASSERT(ds->ds_owner == NULL || DSL_DATASET_IS_DESTROYED(ds)); |
789 | 269 |
4787 | 270 unique_remove(ds->ds_fsid_guid); |
789 | 271 |
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272 if (ds->ds_objset != NULL) |
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273 dmu_objset_evict(ds->ds_objset); |
789 | 274 |
275 if (ds->ds_prev) { | |
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276 dsl_dataset_drop_ref(ds->ds_prev, ds); |
789 | 277 ds->ds_prev = NULL; |
278 } | |
279 | |
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280 bplist_destroy(&ds->ds_pending_deadlist); |
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281 if (db != NULL) { |
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282 dsl_deadlist_close(&ds->ds_deadlist); |
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283 } else { |
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284 ASSERT(ds->ds_deadlist.dl_dbuf == NULL); |
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285 ASSERT(!ds->ds_deadlist.dl_oldfmt); |
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286 } |
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287 if (ds->ds_dir) |
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288 dsl_dir_close(ds->ds_dir, ds); |
789 | 289 |
4787 | 290 ASSERT(!list_link_active(&ds->ds_synced_link)); |
789 | 291 |
2856 | 292 mutex_destroy(&ds->ds_lock); |
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293 mutex_destroy(&ds->ds_recvlock); |
4787 | 294 mutex_destroy(&ds->ds_opening_lock); |
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295 rw_destroy(&ds->ds_rwlock); |
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296 cv_destroy(&ds->ds_exclusive_cv); |
2856 | 297 |
789 | 298 kmem_free(ds, sizeof (dsl_dataset_t)); |
299 } | |
300 | |
1544 | 301 static int |
789 | 302 dsl_dataset_get_snapname(dsl_dataset_t *ds) |
303 { | |
304 dsl_dataset_phys_t *headphys; | |
305 int err; | |
306 dmu_buf_t *headdbuf; | |
307 dsl_pool_t *dp = ds->ds_dir->dd_pool; | |
308 objset_t *mos = dp->dp_meta_objset; | |
309 | |
310 if (ds->ds_snapname[0]) | |
1544 | 311 return (0); |
789 | 312 if (ds->ds_phys->ds_next_snap_obj == 0) |
1544 | 313 return (0); |
789 | 314 |
1544 | 315 err = dmu_bonus_hold(mos, ds->ds_dir->dd_phys->dd_head_dataset_obj, |
316 FTAG, &headdbuf); | |
317 if (err) | |
318 return (err); | |
789 | 319 headphys = headdbuf->db_data; |
320 err = zap_value_search(dp->dp_meta_objset, | |
4577 | 321 headphys->ds_snapnames_zapobj, ds->ds_object, 0, ds->ds_snapname); |
1544 | 322 dmu_buf_rele(headdbuf, FTAG); |
323 return (err); | |
789 | 324 } |
325 | |
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326 static int |
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327 dsl_dataset_snap_lookup(dsl_dataset_t *ds, const char *name, uint64_t *value) |
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328 { |
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329 objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; |
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330 uint64_t snapobj = ds->ds_phys->ds_snapnames_zapobj; |
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331 matchtype_t mt; |
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332 int err; |
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333 |
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334 if (ds->ds_phys->ds_flags & DS_FLAG_CI_DATASET) |
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335 mt = MT_FIRST; |
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336 else |
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337 mt = MT_EXACT; |
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338 |
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339 err = zap_lookup_norm(mos, snapobj, name, 8, 1, |
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340 value, mt, NULL, 0, NULL); |
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341 if (err == ENOTSUP && mt == MT_FIRST) |
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342 err = zap_lookup(mos, snapobj, name, 8, 1, value); |
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343 return (err); |
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344 } |
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345 |
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346 static int |
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347 dsl_dataset_snap_remove(dsl_dataset_t *ds, char *name, dmu_tx_t *tx) |
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348 { |
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349 objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; |
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350 uint64_t snapobj = ds->ds_phys->ds_snapnames_zapobj; |
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351 matchtype_t mt; |
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352 int err; |
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353 |
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354 dsl_dir_snap_cmtime_update(ds->ds_dir); |
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355 |
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356 if (ds->ds_phys->ds_flags & DS_FLAG_CI_DATASET) |
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357 mt = MT_FIRST; |
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358 else |
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359 mt = MT_EXACT; |
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360 |
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361 err = zap_remove_norm(mos, snapobj, name, mt, tx); |
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362 if (err == ENOTSUP && mt == MT_FIRST) |
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363 err = zap_remove(mos, snapobj, name, tx); |
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364 return (err); |
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365 } |
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366 |
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367 static int |
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368 dsl_dataset_get_ref(dsl_pool_t *dp, uint64_t dsobj, void *tag, |
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369 dsl_dataset_t **dsp) |
789 | 370 { |
371 objset_t *mos = dp->dp_meta_objset; | |
372 dmu_buf_t *dbuf; | |
373 dsl_dataset_t *ds; | |
1544 | 374 int err; |
789 | 375 |
376 ASSERT(RW_LOCK_HELD(&dp->dp_config_rwlock) || | |
377 dsl_pool_sync_context(dp)); | |
378 | |
1544 | 379 err = dmu_bonus_hold(mos, dsobj, tag, &dbuf); |
380 if (err) | |
381 return (err); | |
789 | 382 ds = dmu_buf_get_user(dbuf); |
383 if (ds == NULL) { | |
384 dsl_dataset_t *winner; | |
385 | |
386 ds = kmem_zalloc(sizeof (dsl_dataset_t), KM_SLEEP); | |
387 ds->ds_dbuf = dbuf; | |
388 ds->ds_object = dsobj; | |
389 ds->ds_phys = dbuf->db_data; | |
390 | |
2856 | 391 mutex_init(&ds->ds_lock, NULL, MUTEX_DEFAULT, NULL); |
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392 mutex_init(&ds->ds_recvlock, NULL, MUTEX_DEFAULT, NULL); |
4787 | 393 mutex_init(&ds->ds_opening_lock, NULL, MUTEX_DEFAULT, NULL); |
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394 rw_init(&ds->ds_rwlock, 0, 0, 0); |
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395 cv_init(&ds->ds_exclusive_cv, NULL, CV_DEFAULT, NULL); |
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396 |
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397 bplist_create(&ds->ds_pending_deadlist); |
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398 dsl_deadlist_open(&ds->ds_deadlist, |
789 | 399 mos, ds->ds_phys->ds_deadlist_obj); |
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400 |
1544 | 401 if (err == 0) { |
402 err = dsl_dir_open_obj(dp, | |
403 ds->ds_phys->ds_dir_obj, NULL, ds, &ds->ds_dir); | |
404 } | |
405 if (err) { | |
2856 | 406 mutex_destroy(&ds->ds_lock); |
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407 mutex_destroy(&ds->ds_recvlock); |
4787 | 408 mutex_destroy(&ds->ds_opening_lock); |
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409 rw_destroy(&ds->ds_rwlock); |
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410 cv_destroy(&ds->ds_exclusive_cv); |
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411 bplist_destroy(&ds->ds_pending_deadlist); |
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412 dsl_deadlist_close(&ds->ds_deadlist); |
1544 | 413 kmem_free(ds, sizeof (dsl_dataset_t)); |
414 dmu_buf_rele(dbuf, tag); | |
415 return (err); | |
416 } | |
789 | 417 |
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418 if (!dsl_dataset_is_snapshot(ds)) { |
789 | 419 ds->ds_snapname[0] = '\0'; |
420 if (ds->ds_phys->ds_prev_snap_obj) { | |
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421 err = dsl_dataset_get_ref(dp, |
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422 ds->ds_phys->ds_prev_snap_obj, |
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423 ds, &ds->ds_prev); |
789 | 424 } |
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425 } else { |
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426 if (zfs_flags & ZFS_DEBUG_SNAPNAMES) |
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427 err = dsl_dataset_get_snapname(ds); |
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428 if (err == 0 && ds->ds_phys->ds_userrefs_obj != 0) { |
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429 err = zap_count( |
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430 ds->ds_dir->dd_pool->dp_meta_objset, |
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431 ds->ds_phys->ds_userrefs_obj, |
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432 &ds->ds_userrefs); |
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433 } |
789 | 434 } |
435 | |
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436 if (err == 0 && !dsl_dataset_is_snapshot(ds)) { |
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437 /* |
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438 * In sync context, we're called with either no lock |
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439 * or with the write lock. If we're not syncing, |
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440 * we're always called with the read lock held. |
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441 */ |
5475
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442 boolean_t need_lock = |
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443 !RW_WRITE_HELD(&dp->dp_config_rwlock) && |
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444 dsl_pool_sync_context(dp); |
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445 |
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446 if (need_lock) |
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447 rw_enter(&dp->dp_config_rwlock, RW_READER); |
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448 |
7265 | 449 err = dsl_prop_get_ds(ds, |
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450 "refreservation", sizeof (uint64_t), 1, |
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451 &ds->ds_reserved, NULL); |
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452 if (err == 0) { |
7265 | 453 err = dsl_prop_get_ds(ds, |
5475
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454 "refquota", sizeof (uint64_t), 1, |
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455 &ds->ds_quota, NULL); |
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456 } |
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457 |
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458 if (need_lock) |
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459 rw_exit(&dp->dp_config_rwlock); |
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460 } else { |
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461 ds->ds_reserved = ds->ds_quota = 0; |
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462 } |
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463 |
1544 | 464 if (err == 0) { |
465 winner = dmu_buf_set_user_ie(dbuf, ds, &ds->ds_phys, | |
466 dsl_dataset_evict); | |
467 } | |
468 if (err || winner) { | |
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469 bplist_destroy(&ds->ds_pending_deadlist); |
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470 dsl_deadlist_close(&ds->ds_deadlist); |
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471 if (ds->ds_prev) |
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472 dsl_dataset_drop_ref(ds->ds_prev, ds); |
789 | 473 dsl_dir_close(ds->ds_dir, ds); |
2856 | 474 mutex_destroy(&ds->ds_lock); |
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475 mutex_destroy(&ds->ds_recvlock); |
4787 | 476 mutex_destroy(&ds->ds_opening_lock); |
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477 rw_destroy(&ds->ds_rwlock); |
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478 cv_destroy(&ds->ds_exclusive_cv); |
789 | 479 kmem_free(ds, sizeof (dsl_dataset_t)); |
1544 | 480 if (err) { |
481 dmu_buf_rele(dbuf, tag); | |
482 return (err); | |
483 } | |
789 | 484 ds = winner; |
485 } else { | |
4787 | 486 ds->ds_fsid_guid = |
789 | 487 unique_insert(ds->ds_phys->ds_fsid_guid); |
488 } | |
489 } | |
490 ASSERT3P(ds->ds_dbuf, ==, dbuf); | |
491 ASSERT3P(ds->ds_phys, ==, dbuf->db_data); | |
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6343667 scrub/resilver has to start over when a snapshot is taken
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492 ASSERT(ds->ds_phys->ds_prev_snap_obj != 0 || |
7061
524fec1acf1c
6723703 zpool upgrade -> assertion failed: ds->ds_phys->ds_prev_snap_obj != 0 || ...
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493 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 ...
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494 dp->dp_origin_snap == NULL || ds == dp->dp_origin_snap); |
789 | 495 mutex_enter(&ds->ds_lock); |
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496 if (!dsl_pool_sync_context(dp) && DSL_DATASET_IS_DESTROYED(ds)) { |
789 | 497 mutex_exit(&ds->ds_lock); |
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498 dmu_buf_rele(ds->ds_dbuf, tag); |
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499 return (ENOENT); |
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500 } |
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501 mutex_exit(&ds->ds_lock); |
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502 *dsp = ds; |
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503 return (0); |
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504 } |
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505 |
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506 static int |
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507 dsl_dataset_hold_ref(dsl_dataset_t *ds, void *tag) |
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508 { |
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509 dsl_pool_t *dp = ds->ds_dir->dd_pool; |
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510 |
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511 /* |
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512 * In syncing context we don't want the rwlock lock: there |
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513 * may be an existing writer waiting for sync phase to |
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514 * finish. We don't need to worry about such writers, since |
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515 * sync phase is single-threaded, so the writer can't be |
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516 * doing anything while we are active. |
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517 */ |
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518 if (dsl_pool_sync_context(dp)) { |
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519 ASSERT(!DSL_DATASET_IS_DESTROYED(ds)); |
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520 return (0); |
789 | 521 } |
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522 |
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523 /* |
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524 * Normal users will hold the ds_rwlock as a READER until they |
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525 * are finished (i.e., call dsl_dataset_rele()). "Owners" will |
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526 * drop their READER lock after they set the ds_owner field. |
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527 * |
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528 * If the dataset is being destroyed, the destroy thread will |
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529 * obtain a WRITER lock for exclusive access after it's done its |
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530 * open-context work and then change the ds_owner to |
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531 * dsl_reaper once destruction is assured. So threads |
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532 * may block here temporarily, until the "destructability" of |
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533 * the dataset is determined. |
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534 */ |
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535 ASSERT(!RW_WRITE_HELD(&dp->dp_config_rwlock)); |
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536 mutex_enter(&ds->ds_lock); |
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537 while (!rw_tryenter(&ds->ds_rwlock, RW_READER)) { |
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|
538 rw_exit(&dp->dp_config_rwlock); |
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539 cv_wait(&ds->ds_exclusive_cv, &ds->ds_lock); |
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540 if (DSL_DATASET_IS_DESTROYED(ds)) { |
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541 mutex_exit(&ds->ds_lock); |
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542 dsl_dataset_drop_ref(ds, tag); |
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543 rw_enter(&dp->dp_config_rwlock, RW_READER); |
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544 return (ENOENT); |
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545 } |
11546
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546 /* |
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547 * The dp_config_rwlock lives above the ds_lock. And |
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548 * we need to check DSL_DATASET_IS_DESTROYED() while |
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549 * holding the ds_lock, so we have to drop and reacquire |
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550 * the ds_lock here. |
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551 */ |
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552 mutex_exit(&ds->ds_lock); |
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553 rw_enter(&dp->dp_config_rwlock, RW_READER); |
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554 mutex_enter(&ds->ds_lock); |
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555 } |
789 | 556 mutex_exit(&ds->ds_lock); |
1544 | 557 return (0); |
789 | 558 } |
559 | |
560 int | |
6689
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561 dsl_dataset_hold_obj(dsl_pool_t *dp, uint64_t dsobj, void *tag, |
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562 dsl_dataset_t **dsp) |
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563 { |
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564 int err = dsl_dataset_get_ref(dp, dsobj, tag, dsp); |
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565 |
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566 if (err) |
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567 return (err); |
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568 return (dsl_dataset_hold_ref(*dsp, tag)); |
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569 } |
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570 |
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571 int |
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572 dsl_dataset_own_obj(dsl_pool_t *dp, uint64_t dsobj, boolean_t inconsistentok, |
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573 void *tag, dsl_dataset_t **dsp) |
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574 { |
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575 int err = dsl_dataset_hold_obj(dp, dsobj, tag, dsp); |
6689
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576 if (err) |
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577 return (err); |
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578 if (!dsl_dataset_tryown(*dsp, inconsistentok, tag)) { |
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|
579 dsl_dataset_rele(*dsp, tag); |
8779
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6784924 panic while ludelete (zfs destroy)
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|
580 *dsp = NULL; |
6689
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581 return (EBUSY); |
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|
582 } |
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|
583 return (0); |
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|
584 } |
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|
585 |
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|
586 int |
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|
587 dsl_dataset_hold(const char *name, void *tag, dsl_dataset_t **dsp) |
789 | 588 { |
589 dsl_dir_t *dd; | |
590 dsl_pool_t *dp; | |
6689
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591 const char *snapname; |
789 | 592 uint64_t obj; |
593 int err = 0; | |
594 | |
6689
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595 err = dsl_dir_open_spa(NULL, name, FTAG, &dd, &snapname); |
1544 | 596 if (err) |
597 return (err); | |
789 | 598 |
599 dp = dd->dd_pool; | |
600 obj = dd->dd_phys->dd_head_dataset_obj; | |
601 rw_enter(&dp->dp_config_rwlock, RW_READER); | |
6689
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|
602 if (obj) |
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603 err = dsl_dataset_get_ref(dp, obj, tag, dsp); |
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604 else |
789 | 605 err = ENOENT; |
6689
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606 if (err) |
789 | 607 goto out; |
6689
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|
608 |
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609 err = dsl_dataset_hold_ref(*dsp, tag); |
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|
610 |
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|
611 /* we may be looking for a snapshot */ |
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612 if (err == 0 && snapname != NULL) { |
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|
613 dsl_dataset_t *ds = NULL; |
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|
614 |
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|
615 if (*snapname++ != '@') { |
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|
616 dsl_dataset_rele(*dsp, tag); |
789 | 617 err = ENOENT; |
618 goto out; | |
619 } | |
6689
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|
620 |
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|
621 dprintf("looking for snapshot '%s'\n", snapname); |
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622 err = dsl_dataset_snap_lookup(*dsp, snapname, &obj); |
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|
623 if (err == 0) |
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|
624 err = dsl_dataset_get_ref(dp, obj, tag, &ds); |
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|
625 dsl_dataset_rele(*dsp, tag); |
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|
626 |
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|
627 ASSERT3U((err == 0), ==, (ds != NULL)); |
47572a2f5e73
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diff
changeset
|
628 |
47572a2f5e73
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|
629 if (ds) { |
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|
630 mutex_enter(&ds->ds_lock); |
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|
631 if (ds->ds_snapname[0] == 0) |
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|
632 (void) strlcpy(ds->ds_snapname, snapname, |
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|
633 sizeof (ds->ds_snapname)); |
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|
634 mutex_exit(&ds->ds_lock); |
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|
635 err = dsl_dataset_hold_ref(ds, tag); |
47572a2f5e73
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|
636 *dsp = err ? NULL : ds; |
789 | 637 } |
638 } | |
639 out: | |
640 rw_exit(&dp->dp_config_rwlock); | |
641 dsl_dir_close(dd, FTAG); | |
642 return (err); | |
643 } | |
644 | |
645 int | |
10298
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|
646 dsl_dataset_own(const char *name, boolean_t inconsistentok, |
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|
647 void *tag, dsl_dataset_t **dsp) |
789 | 648 { |
10298
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|
649 int err = dsl_dataset_hold(name, tag, dsp); |
6689
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|
650 if (err) |
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|
651 return (err); |
10298
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|
652 if (!dsl_dataset_tryown(*dsp, inconsistentok, tag)) { |
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|
653 dsl_dataset_rele(*dsp, tag); |
6689
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|
654 return (EBUSY); |
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|
655 } |
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|
656 return (0); |
789 | 657 } |
658 | |
659 void | |
660 dsl_dataset_name(dsl_dataset_t *ds, char *name) | |
661 { | |
662 if (ds == NULL) { | |
663 (void) strcpy(name, "mos"); | |
664 } else { | |
665 dsl_dir_name(ds->ds_dir, name); | |
1544 | 666 VERIFY(0 == dsl_dataset_get_snapname(ds)); |
789 | 667 if (ds->ds_snapname[0]) { |
668 (void) strcat(name, "@"); | |
6689
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|
669 /* |
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|
670 * We use a "recursive" mutex so that we |
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|
671 * can call dprintf_ds() with ds_lock held. |
47572a2f5e73
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|
672 */ |
789 | 673 if (!MUTEX_HELD(&ds->ds_lock)) { |
674 mutex_enter(&ds->ds_lock); | |
675 (void) strcat(name, ds->ds_snapname); | |
676 mutex_exit(&ds->ds_lock); | |
677 } else { | |
678 (void) strcat(name, ds->ds_snapname); | |
679 } | |
680 } | |
681 } | |
682 } | |
683 | |
3978
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
mmusante
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|
684 static int |
2dd668007b7a
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|
685 dsl_dataset_namelen(dsl_dataset_t *ds) |
2dd668007b7a
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|
686 { |
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|
687 int result; |
2dd668007b7a
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diff
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|
688 |
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|
689 if (ds == NULL) { |
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|
690 result = 3; /* "mos" */ |
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diff
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|
691 } else { |
2dd668007b7a
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diff
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|
692 result = dsl_dir_namelen(ds->ds_dir); |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
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|
693 VERIFY(0 == dsl_dataset_get_snapname(ds)); |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
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|
694 if (ds->ds_snapname[0]) { |
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diff
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|
695 ++result; /* adding one for the @-sign */ |
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|
696 if (!MUTEX_HELD(&ds->ds_lock)) { |
2dd668007b7a
6533813 recursive snapshotting resulted in a bad stack overflow
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|
697 mutex_enter(&ds->ds_lock); |
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|
698 result += strlen(ds->ds_snapname); |
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|
699 mutex_exit(&ds->ds_lock); |
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|
700 } else { |
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|
701 result += strlen(ds->ds_snapname); |
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702 } |
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703 } |
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704 } |
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|
705 |
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|
706 return (result); |
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|
707 } |
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|
708 |
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709 void |
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710 dsl_dataset_drop_ref(dsl_dataset_t *ds, void *tag) |
789 | 711 { |
1544 | 712 dmu_buf_rele(ds->ds_dbuf, tag); |
789 | 713 } |
714 | |
715 void | |
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716 dsl_dataset_rele(dsl_dataset_t *ds, void *tag) |
5367 | 717 { |
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718 if (!dsl_pool_sync_context(ds->ds_dir->dd_pool)) { |
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719 rw_exit(&ds->ds_rwlock); |
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720 } |
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721 dsl_dataset_drop_ref(ds, tag); |
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722 } |
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723 |
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724 void |
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725 dsl_dataset_disown(dsl_dataset_t *ds, void *tag) |
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726 { |
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727 ASSERT((ds->ds_owner == tag && ds->ds_dbuf) || |
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728 (DSL_DATASET_IS_DESTROYED(ds) && ds->ds_dbuf == NULL)); |
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729 |
5367 | 730 mutex_enter(&ds->ds_lock); |
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731 ds->ds_owner = NULL; |
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732 if (RW_WRITE_HELD(&ds->ds_rwlock)) { |
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733 rw_exit(&ds->ds_rwlock); |
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734 cv_broadcast(&ds->ds_exclusive_cv); |
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735 } |
5367 | 736 mutex_exit(&ds->ds_lock); |
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737 if (ds->ds_dbuf) |
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738 dsl_dataset_drop_ref(ds, tag); |
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739 else |
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740 dsl_dataset_evict(NULL, ds); |
5367 | 741 } |
742 | |
743 boolean_t | |
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744 dsl_dataset_tryown(dsl_dataset_t *ds, boolean_t inconsistentok, void *tag) |
5367 | 745 { |
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746 boolean_t gotit = FALSE; |
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747 |
5367 | 748 mutex_enter(&ds->ds_lock); |
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749 if (ds->ds_owner == NULL && |
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750 (!DS_IS_INCONSISTENT(ds) || inconsistentok)) { |
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751 ds->ds_owner = tag; |
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752 if (!dsl_pool_sync_context(ds->ds_dir->dd_pool)) |
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753 rw_exit(&ds->ds_rwlock); |
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754 gotit = TRUE; |
5367 | 755 } |
756 mutex_exit(&ds->ds_lock); | |
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757 return (gotit); |
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758 } |
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759 |
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760 void |
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761 dsl_dataset_make_exclusive(dsl_dataset_t *ds, void *owner) |
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762 { |
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763 ASSERT3P(owner, ==, ds->ds_owner); |
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764 if (!RW_WRITE_HELD(&ds->ds_rwlock)) |
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765 rw_enter(&ds->ds_rwlock, RW_WRITER); |
5367 | 766 } |
767 | |
2199 | 768 uint64_t |
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769 dsl_dataset_create_sync_dd(dsl_dir_t *dd, dsl_dataset_t *origin, |
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770 uint64_t flags, dmu_tx_t *tx) |
789 | 771 { |
5367 | 772 dsl_pool_t *dp = dd->dd_pool; |
789 | 773 dmu_buf_t *dbuf; |
774 dsl_dataset_phys_t *dsphys; | |
5367 | 775 uint64_t dsobj; |
789 | 776 objset_t *mos = dp->dp_meta_objset; |
777 | |
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778 if (origin == NULL) |
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779 origin = dp->dp_origin_snap; |
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780 |
5367 | 781 ASSERT(origin == NULL || origin->ds_dir->dd_pool == dp); |
782 ASSERT(origin == NULL || origin->ds_phys->ds_num_children > 0); | |
789 | 783 ASSERT(dmu_tx_is_syncing(tx)); |
5367 | 784 ASSERT(dd->dd_phys->dd_head_dataset_obj == 0); |
789 | 785 |
928
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diff
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|
786 dsobj = dmu_object_alloc(mos, DMU_OT_DSL_DATASET, 0, |
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diff
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|
787 DMU_OT_DSL_DATASET, sizeof (dsl_dataset_phys_t), tx); |
1544 | 788 VERIFY(0 == dmu_bonus_hold(mos, dsobj, FTAG, &dbuf)); |
789 | 789 dmu_buf_will_dirty(dbuf, tx); |
790 dsphys = dbuf->db_data; | |
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791 bzero(dsphys, sizeof (dsl_dataset_phys_t)); |
789 | 792 dsphys->ds_dir_obj = dd->dd_object; |
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793 dsphys->ds_flags = flags; |
789 | 794 dsphys->ds_fsid_guid = unique_create(); |
795 (void) random_get_pseudo_bytes((void*)&dsphys->ds_guid, | |
796 sizeof (dsphys->ds_guid)); | |
797 dsphys->ds_snapnames_zapobj = | |
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798 zap_create_norm(mos, U8_TEXTPREP_TOUPPER, DMU_OT_DSL_DS_SNAP_MAP, |
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799 DMU_OT_NONE, 0, tx); |
789 | 800 dsphys->ds_creation_time = gethrestime_sec(); |
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801 dsphys->ds_creation_txg = tx->tx_txg == TXG_INITIAL ? 1 : tx->tx_txg; |
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802 |
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803 if (origin == NULL) { |
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804 dsphys->ds_deadlist_obj = dsl_deadlist_alloc(mos, tx); |
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805 } else { |
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806 dsl_dataset_t *ohds; |
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807 |
5367 | 808 dsphys->ds_prev_snap_obj = origin->ds_object; |
789 | 809 dsphys->ds_prev_snap_txg = |
5367 | 810 origin->ds_phys->ds_creation_txg; |
789 | 811 dsphys->ds_used_bytes = |
5367 | 812 origin->ds_phys->ds_used_bytes; |
789 | 813 dsphys->ds_compressed_bytes = |
5367 | 814 origin->ds_phys->ds_compressed_bytes; |
789 | 815 dsphys->ds_uncompressed_bytes = |
5367 | 816 origin->ds_phys->ds_uncompressed_bytes; |
817 dsphys->ds_bp = origin->ds_phys->ds_bp; | |
6502
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818 dsphys->ds_flags |= origin->ds_phys->ds_flags; |
789 | 819 |
5367 | 820 dmu_buf_will_dirty(origin->ds_dbuf, tx); |
821 origin->ds_phys->ds_num_children++; | |
789 | 822 |
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823 VERIFY3U(0, ==, dsl_dataset_hold_obj(dp, |
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824 origin->ds_dir->dd_phys->dd_head_dataset_obj, FTAG, &ohds)); |
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825 dsphys->ds_deadlist_obj = dsl_deadlist_clone(&ohds->ds_deadlist, |
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826 dsphys->ds_prev_snap_txg, dsphys->ds_prev_snap_obj, tx); |
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827 dsl_dataset_rele(ohds, FTAG); |
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828 |
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829 if (spa_version(dp->dp_spa) >= SPA_VERSION_NEXT_CLONES) { |
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830 if (origin->ds_phys->ds_next_clones_obj == 0) { |
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831 origin->ds_phys->ds_next_clones_obj = |
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832 zap_create(mos, |
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833 DMU_OT_NEXT_CLONES, DMU_OT_NONE, 0, tx); |
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834 } |
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835 VERIFY(0 == zap_add_int(mos, |
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836 origin->ds_phys->ds_next_clones_obj, |
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837 dsobj, tx)); |
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838 } |
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839 |
789 | 840 dmu_buf_will_dirty(dd->dd_dbuf, tx); |
5367 | 841 dd->dd_phys->dd_origin_obj = origin->ds_object; |
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842 if (spa_version(dp->dp_spa) >= SPA_VERSION_DIR_CLONES) { |
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843 if (origin->ds_dir->dd_phys->dd_clones == 0) { |
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844 dmu_buf_will_dirty(origin->ds_dir->dd_dbuf, tx); |
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845 origin->ds_dir->dd_phys->dd_clones = |
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846 zap_create(mos, |
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847 DMU_OT_DSL_CLONES, DMU_OT_NONE, 0, tx); |
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848 } |
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|
849 VERIFY3U(0, ==, zap_add_int(mos, |
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850 origin->ds_dir->dd_phys->dd_clones, dsobj, tx)); |
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851 } |
789 | 852 } |
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853 |
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854 if (spa_version(dp->dp_spa) >= SPA_VERSION_UNIQUE_ACCURATE) |
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855 dsphys->ds_flags |= DS_FLAG_UNIQUE_ACCURATE; |
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|
856 |
1544 | 857 dmu_buf_rele(dbuf, FTAG); |
789 | 858 |
859 dmu_buf_will_dirty(dd->dd_dbuf, tx); | |
860 dd->dd_phys->dd_head_dataset_obj = dsobj; | |
5367 | 861 |
862 return (dsobj); | |
863 } | |
864 | |
865 uint64_t | |
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866 dsl_dataset_create_sync(dsl_dir_t *pdd, const char *lastname, |
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867 dsl_dataset_t *origin, uint64_t flags, cred_t *cr, dmu_tx_t *tx) |
5367 | 868 { |
869 dsl_pool_t *dp = pdd->dd_pool; | |
870 uint64_t dsobj, ddobj; | |
871 dsl_dir_t *dd; | |
872 | |
873 ASSERT(lastname[0] != '@'); | |
874 | |
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875 ddobj = dsl_dir_create_sync(dp, pdd, lastname, tx); |
5367 | 876 VERIFY(0 == dsl_dir_open_obj(dp, ddobj, lastname, FTAG, &dd)); |
877 | |
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878 dsobj = dsl_dataset_create_sync_dd(dd, origin, flags, tx); |
5367 | 879 |
880 dsl_deleg_set_create_perms(dd, tx, cr); | |
881 | |
789 | 882 dsl_dir_close(dd, FTAG); |
883 | |
2199 | 884 return (dsobj); |
885 } | |
886 | |
887 struct destroyarg { | |
888 dsl_sync_task_group_t *dstg; | |
889 char *snapname; | |
890 char *failed; | |
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891 boolean_t defer; |
2199 | 892 }; |
893 | |
894 static int | |
11209
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895 dsl_snapshot_destroy_one(const char *name, void *arg) |
2199 | 896 { |
897 struct destroyarg *da = arg; | |
898 dsl_dataset_t *ds; | |
899 int err; | |
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900 char *dsname; |
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901 |
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902 dsname = kmem_asprintf("%s@%s", name, da->snapname); |
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|
903 err = dsl_dataset_own(dsname, B_TRUE, da->dstg, &ds); |
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|
904 strfree(dsname); |
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905 if (err == 0) { |
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906 struct dsl_ds_destroyarg *dsda; |
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907 |
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|
908 dsl_dataset_make_exclusive(ds, da->dstg); |
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909 dsda = kmem_zalloc(sizeof (struct dsl_ds_destroyarg), KM_SLEEP); |
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910 dsda->ds = ds; |
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911 dsda->defer = da->defer; |
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912 dsl_sync_task_create(da->dstg, dsl_dataset_destroy_check, |
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913 dsl_dataset_destroy_sync, dsda, da->dstg, 0); |
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|
914 } else if (err == ENOENT) { |
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915 err = 0; |
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|
916 } else { |
2199 | 917 (void) strcpy(da->failed, name); |
918 } | |
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919 return (err); |
789 | 920 } |
921 | |
2199 | 922 /* |
923 * Destroy 'snapname' in all descendants of 'fsname'. | |
924 */ | |
925 #pragma weak dmu_snapshots_destroy = dsl_snapshots_destroy | |
926 int | |
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927 dsl_snapshots_destroy(char *fsname, char *snapname, boolean_t defer) |
2199 | 928 { |
929 int err; | |
930 struct destroyarg da; | |
931 dsl_sync_task_t *dst; | |
932 spa_t *spa; | |
933 | |
4603
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934 err = spa_open(fsname, &spa, FTAG); |
2199 | 935 if (err) |
936 return (err); | |
937 da.dstg = dsl_sync_task_group_create(spa_get_dsl(spa)); | |
938 da.snapname = snapname; | |
939 da.failed = fsname; | |
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940 da.defer = defer; |
2199 | 941 |
942 err = dmu_objset_find(fsname, | |
2417 | 943 dsl_snapshot_destroy_one, &da, DS_FIND_CHILDREN); |
2199 | 944 |
945 if (err == 0) | |
946 err = dsl_sync_task_group_wait(da.dstg); | |
947 | |
948 for (dst = list_head(&da.dstg->dstg_tasks); dst; | |
949 dst = list_next(&da.dstg->dstg_tasks, dst)) { | |
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950 struct dsl_ds_destroyarg *dsda = dst->dst_arg1; |
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951 dsl_dataset_t *ds = dsda->ds; |
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952 |
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|
953 /* |
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954 * Return the file system name that triggered the error |
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|
955 */ |
2199 | 956 if (dst->dst_err) { |
957 dsl_dataset_name(ds, fsname); | |
4603
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|
958 *strchr(fsname, '@') = '\0'; |
2199 | 959 } |
10242
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960 ASSERT3P(dsda->rm_origin, ==, NULL); |
6689
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961 dsl_dataset_disown(ds, da.dstg); |
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|
962 kmem_free(dsda, sizeof (struct dsl_ds_destroyarg)); |
2199 | 963 } |
964 | |
965 dsl_sync_task_group_destroy(da.dstg); | |
966 spa_close(spa, FTAG); | |
967 return (err); | |
968 } | |
969 | |
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970 static boolean_t |
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971 dsl_dataset_might_destroy_origin(dsl_dataset_t *ds) |
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972 { |
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973 boolean_t might_destroy = B_FALSE; |
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974 |
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975 mutex_enter(&ds->ds_lock); |
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976 if (ds->ds_phys->ds_num_children == 2 && ds->ds_userrefs == 0 && |
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977 DS_IS_DEFER_DESTROY(ds)) |
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978 might_destroy = B_TRUE; |
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979 mutex_exit(&ds->ds_lock); |
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980 |
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981 return (might_destroy); |
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982 } |
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983 |
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984 /* |
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985 * If we're removing a clone, and these three conditions are true: |
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|
986 * 1) the clone's origin has no other children |
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987 * 2) the clone's origin has no user references |
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988 * 3) the clone's origin has been marked for deferred destruction |
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989 * Then, prepare to remove the origin as part of this sync task group. |
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990 */ |
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991 static int |
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992 dsl_dataset_origin_rm_prep(struct dsl_ds_destroyarg *dsda, void *tag) |
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993 { |
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994 dsl_dataset_t *ds = dsda->ds; |
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995 dsl_dataset_t *origin = ds->ds_prev; |
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996 |
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997 if (dsl_dataset_might_destroy_origin(origin)) { |
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998 char *name; |
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999 int namelen; |
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|
1000 int error; |
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|
1001 |
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1002 namelen = dsl_dataset_namelen(origin) + 1; |
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1003 name = kmem_alloc(namelen, KM_SLEEP); |
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1004 dsl_dataset_name(origin, name); |
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1005 #ifdef _KERNEL |
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1006 error = zfs_unmount_snap(name, NULL); |
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1007 if (error) { |
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1008 kmem_free(name, namelen); |
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1009 return (error); |
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1010 } |
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1011 #endif |
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|
1012 error = dsl_dataset_own(name, B_TRUE, tag, &origin); |
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1013 kmem_free(name, namelen); |
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1014 if (error) |
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1015 return (error); |
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1016 dsda->rm_origin = origin; |
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1017 dsl_dataset_make_exclusive(origin, tag); |
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1018 } |
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1019 |
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1020 return (0); |
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1021 } |
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1022 |
5367 | 1023 /* |
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1024 * ds must be opened as OWNER. On return (whether successful or not), |
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1025 * ds will be closed and caller can no longer dereference it. |
5367 | 1026 */ |
789 | 1027 int |
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1028 dsl_dataset_destroy(dsl_dataset_t *ds, void *tag, boolean_t defer) |
789 | 1029 { |
1030 int err; | |
2199 | 1031 dsl_sync_task_group_t *dstg; |
1032 objset_t *os; | |
789 | 1033 dsl_dir_t *dd; |
2199 | 1034 uint64_t obj; |
11022
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|
1035 struct dsl_ds_destroyarg dsda = { 0 }; |
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1036 dsl_dataset_t dummy_ds = { 0 }; |
10242
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1037 |
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1038 dsda.ds = ds; |
2199 | 1039 |
5367 | 1040 if (dsl_dataset_is_snapshot(ds)) { |
2199 | 1041 /* Destroying a snapshot is simpler */ |
6689
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1042 dsl_dataset_make_exclusive(ds, tag); |
7237
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1043 |
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|
1044 dsda.defer = defer; |
2199 | 1045 err = dsl_sync_task_do(ds->ds_dir->dd_pool, |
1046 dsl_dataset_destroy_check, dsl_dataset_destroy_sync, | |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1047 &dsda, tag, 0); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1048 ASSERT3P(dsda.rm_origin, ==, NULL); |
5367 | 1049 goto out; |
10385
21cb6e67d108
6873727 zfs destroy -d <fs> should fail more gracefully when children are present
Chris Kirby <chris.kirby@sun.com>
parents:
10373
diff
changeset
|
1050 } else if (defer) { |
21cb6e67d108
6873727 zfs destroy -d <fs> should fail more gracefully when children are present
Chris Kirby <chris.kirby@sun.com>
parents:
10373
diff
changeset
|
1051 err = EINVAL; |
21cb6e67d108
6873727 zfs destroy -d <fs> should fail more gracefully when children are present
Chris Kirby <chris.kirby@sun.com>
parents:
10373
diff
changeset
|
1052 goto out; |
2199 | 1053 } |
1054 | |
1055 dd = ds->ds_dir; | |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
1056 dummy_ds.ds_dir = dd; |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
1057 dummy_ds.ds_object = ds->ds_object; |
789 | 1058 |
2199 | 1059 /* |
1060 * Check for errors and mark this ds as inconsistent, in | |
1061 * case we crash while freeing the objects. | |
1062 */ | |
1063 err = dsl_sync_task_do(dd->dd_pool, dsl_dataset_destroy_begin_check, | |
1064 dsl_dataset_destroy_begin_sync, ds, NULL, 0); | |
5367 | 1065 if (err) |
1066 goto out; | |
1067 | |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
1068 err = dmu_objset_from_ds(ds, &os); |
5367 | 1069 if (err) |
1070 goto out; | |
2199 | 1071 |
1072 /* | |
1073 * remove the objects in open context, so that we won't | |
1074 * have too much to do in syncing context. | |
1075 */ | |
3025
4e5ee8301d84
6424466 "panic: data after EOF" when unmounting abused pool
ahrens
parents:
2885
diff
changeset
|
1076 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
|
1077 ds->ds_phys->ds_prev_snap_txg)) { |
6992 | 1078 /* |
1079 * Ignore errors, if there is not enough disk space | |
1080 * we will deal with it in dsl_dataset_destroy_sync(). | |
1081 */ | |
1082 (void) dmu_free_object(os, obj); | |
2199 | 1083 } |
1084 | |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1085 /* |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1086 * We need to sync out all in-flight IO before we try to evict |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1087 * (the dataset evict func is trying to clear the cached entries |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1088 * for this dataset in the ARC). |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1089 */ |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1090 txg_wait_synced(dd->dd_pool, 0); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1091 |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1092 /* |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1093 * If we managed to free all the objects in open |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1094 * context, the user space accounting should be zero. |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1095 */ |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1096 if (ds->ds_phys->ds_bp.blk_fill == 0 && |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
1097 dmu_objset_userused_enabled(os)) { |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1098 uint64_t count; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1099 |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1100 ASSERT(zap_count(os, DMU_USERUSED_OBJECT, &count) != 0 || |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1101 count == 0); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1102 ASSERT(zap_count(os, DMU_GROUPUSED_OBJECT, &count) != 0 || |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1103 count == 0); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1104 } |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9390
diff
changeset
|
1105 |
2199 | 1106 if (err != ESRCH) |
5367 | 1107 goto out; |
2199 | 1108 |
6975
c511f317869e
6717522 panic in dmu_objset_stats() due to freed objset_impl_t
maybee
parents:
6689
diff
changeset
|
1109 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
|
1110 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
|
1111 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
|
1112 |
c511f317869e
6717522 panic in dmu_objset_stats() due to freed objset_impl_t
maybee
parents:
6689
diff
changeset
|
1113 if (err) |
c511f317869e
6717522 panic in dmu_objset_stats() due to freed objset_impl_t
maybee
parents:
6689
diff
changeset
|
1114 goto out; |
c511f317869e
6717522 panic in dmu_objset_stats() due to freed objset_impl_t
maybee
parents:
6689
diff
changeset
|
1115 |
2199 | 1116 /* |
1117 * Blow away the dsl_dir + head dataset. | |
1118 */ | |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1119 dsl_dataset_make_exclusive(ds, tag); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1120 /* |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1121 * If we're removing a clone, we might also need to remove its |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1122 * origin. |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1123 */ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1124 do { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1125 dsda.need_prep = B_FALSE; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1126 if (dsl_dir_is_clone(dd)) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1127 err = dsl_dataset_origin_rm_prep(&dsda, tag); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1128 if (err) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1129 dsl_dir_close(dd, FTAG); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1130 goto out; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1131 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1132 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1133 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1134 dstg = dsl_sync_task_group_create(ds->ds_dir->dd_pool); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1135 dsl_sync_task_create(dstg, dsl_dataset_destroy_check, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1136 dsl_dataset_destroy_sync, &dsda, tag, 0); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1137 dsl_sync_task_create(dstg, dsl_dir_destroy_check, |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
1138 dsl_dir_destroy_sync, &dummy_ds, FTAG, 0); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1139 err = dsl_sync_task_group_wait(dstg); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1140 dsl_sync_task_group_destroy(dstg); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1141 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1142 /* |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1143 * We could be racing against 'zfs release' or 'zfs destroy -d' |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1144 * on the origin snap, in which case we can get EBUSY if we |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1145 * needed to destroy the origin snap but were not ready to |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1146 * do so. |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1147 */ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1148 if (dsda.need_prep) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1149 ASSERT(err == EBUSY); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1150 ASSERT(dsl_dir_is_clone(dd)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1151 ASSERT(dsda.rm_origin == NULL); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1152 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1153 } while (dsda.need_prep); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1154 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1155 if (dsda.rm_origin != NULL) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1156 dsl_dataset_disown(dsda.rm_origin, tag); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1157 |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1158 /* if it is successful, dsl_dir_destroy_sync will close the dd */ |
5367 | 1159 if (err) |
2199 | 1160 dsl_dir_close(dd, FTAG); |
5367 | 1161 out: |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1162 dsl_dataset_disown(ds, tag); |
789 | 1163 return (err); |
1164 } | |
1165 | |
3547
e396e0a440b1
6512391 DMU should leverage ZIO dependencies to achieve greater parallelism
maybee
parents:
3444
diff
changeset
|
1166 blkptr_t * |
e396e0a440b1
6512391 DMU should leverage ZIO dependencies to achieve greater parallelism
maybee
parents:
3444
diff
changeset
|
1167 dsl_dataset_get_blkptr(dsl_dataset_t *ds) |
789 | 1168 { |
3547
e396e0a440b1
6512391 DMU should leverage ZIO dependencies to achieve greater parallelism
maybee
parents:
3444
diff
changeset
|
1169 return (&ds->ds_phys->ds_bp); |
789 | 1170 } |
1171 | |
1172 void | |
1173 dsl_dataset_set_blkptr(dsl_dataset_t *ds, blkptr_t *bp, dmu_tx_t *tx) | |
1174 { | |
1175 ASSERT(dmu_tx_is_syncing(tx)); | |
1176 /* If it's the meta-objset, set dp_meta_rootbp */ | |
1177 if (ds == NULL) { | |
1178 tx->tx_pool->dp_meta_rootbp = *bp; | |
1179 } else { | |
1180 dmu_buf_will_dirty(ds->ds_dbuf, tx); | |
1181 ds->ds_phys->ds_bp = *bp; | |
1182 } | |
1183 } | |
1184 | |
1185 spa_t * | |
1186 dsl_dataset_get_spa(dsl_dataset_t *ds) | |
1187 { | |
1188 return (ds->ds_dir->dd_pool->dp_spa); | |
1189 } | |
1190 | |
1191 void | |
1192 dsl_dataset_dirty(dsl_dataset_t *ds, dmu_tx_t *tx) | |
1193 { | |
1194 dsl_pool_t *dp; | |
1195 | |
1196 if (ds == NULL) /* this is the meta-objset */ | |
1197 return; | |
1198 | |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
1199 ASSERT(ds->ds_objset != NULL); |
2885 | 1200 |
1201 if (ds->ds_phys->ds_next_snap_obj != 0) | |
1202 panic("dirtying snapshot!"); | |
789 | 1203 |
1204 dp = ds->ds_dir->dd_pool; | |
1205 | |
1206 if (txg_list_add(&dp->dp_dirty_datasets, ds, tx->tx_txg) == 0) { | |
1207 /* up the hold count until we can be written out */ | |
1208 dmu_buf_add_ref(ds->ds_dbuf, ds); | |
1209 } | |
1210 } | |
1211 | |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1212 /* |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1213 * 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
|
1214 * 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
|
1215 * 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
|
1216 * 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
|
1217 * 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
|
1218 * has been freed up since the snapshot was taken. |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1219 */ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1220 static void |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1221 dsl_dataset_recalc_head_uniq(dsl_dataset_t *ds) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1222 { |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1223 uint64_t mrs_used; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1224 uint64_t dlused, dlcomp, dluncomp; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1225 |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
1226 ASSERT(!dsl_dataset_is_snapshot(ds)); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1227 |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1228 if (ds->ds_phys->ds_prev_snap_obj != 0) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1229 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
|
1230 else |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1231 mrs_used = 0; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1232 |
12470
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
1233 dsl_deadlist_space(&ds->ds_deadlist, &dlused, &dlcomp, &dluncomp); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1234 |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1235 ASSERT3U(dlused, <=, mrs_used); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1236 ds->ds_phys->ds_unique_bytes = |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1237 ds->ds_phys->ds_used_bytes - (mrs_used - dlused); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1238 |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
1239 if (spa_version(ds->ds_dir->dd_pool->dp_spa) >= |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1240 SPA_VERSION_UNIQUE_ACCURATE) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1241 ds->ds_phys->ds_flags |= DS_FLAG_UNIQUE_ACCURATE; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1242 } |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
1243 |
789 | 1244 struct killarg { |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1245 dsl_dataset_t *ds; |
789 | 1246 dmu_tx_t *tx; |
1247 }; | |
1248 | |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1249 /* ARGSUSED */ |
789 | 1250 static int |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
1251 kill_blkptr(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, arc_buf_t *pbuf, |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10816
diff
changeset
|
1252 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) |
789 | 1253 { |
1254 struct killarg *ka = arg; | |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10816
diff
changeset
|
1255 dmu_tx_t *tx = ka->tx; |
7837
001de5627df3
6333409 traversal code should be able to issue multiple reads in parallel
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7754
diff
changeset
|
1256 |
001de5627df3
6333409 traversal code should be able to issue multiple reads in parallel
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7754
diff
changeset
|
1257 if (bp == NULL) |
001de5627df3
6333409 traversal code should be able to issue multiple reads in parallel
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7754
diff
changeset
|
1258 return (0); |
789 | 1259 |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10816
diff
changeset
|
1260 if (zb->zb_level == ZB_ZIL_LEVEL) { |
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10816
diff
changeset
|
1261 ASSERT(zilog != NULL); |
8746
e1d96ca6808c
6796377 panic on rollback in space_map_add()
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
8525
diff
changeset
|
1262 /* |
e1d96ca6808c
6796377 panic on rollback in space_map_add()
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
8525
diff
changeset
|
1263 * It's a block in the intent log. It has no |
e1d96ca6808c
6796377 panic on rollback in space_map_add()
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
8525
diff
changeset
|
1264 * accounting, so just free it. |
e1d96ca6808c
6796377 panic on rollback in space_map_add()
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
8525
diff
changeset
|
1265 */ |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10816
diff
changeset
|
1266 dsl_free(ka->tx->tx_pool, ka->tx->tx_txg, bp); |
8746
e1d96ca6808c
6796377 panic on rollback in space_map_add()
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
8525
diff
changeset
|
1267 } else { |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10816
diff
changeset
|
1268 ASSERT(zilog == NULL); |
8746
e1d96ca6808c
6796377 panic on rollback in space_map_add()
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
8525
diff
changeset
|
1269 ASSERT3U(bp->blk_birth, >, ka->ds->ds_phys->ds_prev_snap_txg); |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10816
diff
changeset
|
1270 (void) dsl_dataset_block_kill(ka->ds, bp, tx, B_FALSE); |
8746
e1d96ca6808c
6796377 panic on rollback in space_map_add()
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
8525
diff
changeset
|
1271 } |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1272 |
789 | 1273 return (0); |
1274 } | |
1275 | |
1276 /* ARGSUSED */ | |
2199 | 1277 static int |
1278 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
|
1279 { |
2199 | 1280 dsl_dataset_t *ds = arg1; |
5367 | 1281 objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; |
1282 uint64_t count; | |
1283 int err; | |
1731
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1284 |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1285 /* |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1286 * 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
|
1287 * (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
|
1288 * from.) |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1289 */ |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1290 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
|
1291 ds->ds_prev->ds_phys->ds_next_snap_obj == ds->ds_object) |
10816
731471f04028
6482588 zfs destroy -r aborts and dumps core when destroying a file system (while snapshotting is going on)
vitezslav batrla - Sun Microsystems - Prague Czech Republic <Vitezslav.Batrla@Sun.COM>
parents:
10801
diff
changeset
|
1292 return (EBUSY); |
1731
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1293 |
5367 | 1294 /* |
1295 * This is really a dsl_dir thing, but check it here so that | |
1296 * we'll be less likely to leave this dataset inconsistent & | |
1297 * nearly destroyed. | |
1298 */ | |
1299 err = zap_count(mos, ds->ds_dir->dd_phys->dd_child_dir_zapobj, &count); | |
1300 if (err) | |
1301 return (err); | |
1302 if (count != 0) | |
1303 return (EEXIST); | |
1304 | |
1731
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1305 return (0); |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1306 } |
1efa8b3d1296
6402598 'zfs destroy <fs>' can take a long time, stopping up the txg train
bonwick
parents:
1544
diff
changeset
|
1307 |
2199 | 1308 /* ARGSUSED */ |
1309 static void | |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
1310 dsl_dataset_destroy_begin_sync(void *arg1, void *arg2, dmu_tx_t *tx) |
789 | 1311 { |
2199 | 1312 dsl_dataset_t *ds = arg1; |
4543 | 1313 dsl_pool_t *dp = ds->ds_dir->dd_pool; |
789 | 1314 |
2199 | 1315 /* Mark it as inconsistent on-disk, in case we crash */ |
1316 dmu_buf_will_dirty(ds->ds_dbuf, tx); | |
1317 ds->ds_phys->ds_flags |= DS_FLAG_INCONSISTENT; | |
4543 | 1318 |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
1319 spa_history_log_internal(LOG_DS_DESTROY_BEGIN, dp->dp_spa, tx, |
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
1320 "dataset = %llu", ds->ds_object); |
2199 | 1321 } |
789 | 1322 |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1323 static int |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1324 dsl_dataset_origin_check(struct dsl_ds_destroyarg *dsda, void *tag, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1325 dmu_tx_t *tx) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1326 { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1327 dsl_dataset_t *ds = dsda->ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1328 dsl_dataset_t *ds_prev = ds->ds_prev; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1329 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1330 if (dsl_dataset_might_destroy_origin(ds_prev)) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1331 struct dsl_ds_destroyarg ndsda = {0}; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1332 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1333 /* |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1334 * If we're not prepared to remove the origin, don't remove |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1335 * the clone either. |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1336 */ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1337 if (dsda->rm_origin == NULL) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1338 dsda->need_prep = B_TRUE; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1339 return (EBUSY); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1340 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1341 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1342 ndsda.ds = ds_prev; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1343 ndsda.is_origin_rm = B_TRUE; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1344 return (dsl_dataset_destroy_check(&ndsda, tag, tx)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1345 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1346 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1347 /* |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1348 * If we're not going to remove the origin after all, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1349 * undo the open context setup. |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1350 */ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1351 if (dsda->rm_origin != NULL) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1352 dsl_dataset_disown(dsda->rm_origin, tag); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1353 dsda->rm_origin = NULL; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1354 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1355 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1356 return (0); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1357 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1358 |
2199 | 1359 /* ARGSUSED */ |
5367 | 1360 int |
2199 | 1361 dsl_dataset_destroy_check(void *arg1, void *arg2, dmu_tx_t *tx) |
1362 { | |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1363 struct dsl_ds_destroyarg *dsda = arg1; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1364 dsl_dataset_t *ds = dsda->ds; |
789 | 1365 |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1366 /* 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
|
1367 ASSERT(!DSL_DATASET_IS_DESTROYED(ds)); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
1368 |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1369 /* |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1370 * Only allow deferred destroy on pools that support it. |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1371 * NOTE: deferred destroy is only supported on snapshots. |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1372 */ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1373 if (dsda->defer) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1374 if (spa_version(ds->ds_dir->dd_pool->dp_spa) < |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1375 SPA_VERSION_USERREFS) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1376 return (ENOTSUP); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1377 ASSERT(dsl_dataset_is_snapshot(ds)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1378 return (0); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
1379 } |
789 | 1380 |
1381 /* | |
1382 * Can't delete a head dataset if there are snapshots of it. | |
1383 * (Except if the only snapshots are from the branch we cloned | |
1384 * from.) | |
1385 */ | |
1386 if (ds->ds_prev != NULL && | |
2199 | 1387 ds->ds_prev->ds_phys->ds_next_snap_obj == ds->ds_object) |
10816
731471f04028
6482588 zfs destroy -r aborts and dumps core when destroying a file system (while snapshotting is going on)
vitezslav batrla - Sun Microsystems - Prague Czech Republic <Vitezslav.Batrla@Sun.COM>
parents:
10801
diff
changeset
|
1388 return (EBUSY); |
789 | 1389 |
1390 /* | |
1391 * If we made changes this txg, traverse_dsl_dataset won't find | |
1392 * them. Try again. | |
1393 */ | |
2199 | 1394 if (ds->ds_phys->ds_bp.blk_birth >= tx->tx_txg) |
789 | 1395 return (EAGAIN); |
2199 | 1396 |
10242
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10204
diff
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|
1397 if (dsl_dataset_is_snapshot(ds)) { |
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10204
diff
changeset
|
1398 /* |
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parents:
10204
diff
changeset
|
1399 * If this snapshot has an elevated user reference count, |
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PSARC/2009/297 zfs snapshot holds
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diff
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|
1400 * we can't destroy it yet. |
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PSARC/2009/297 zfs snapshot holds
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diff
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|
1401 */ |
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diff
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|
1402 if (ds->ds_userrefs > 0 && !dsda->releasing) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
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diff
changeset
|
1403 return (EBUSY); |
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PSARC/2009/297 zfs snapshot holds
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diff
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|
1404 |
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|
1405 mutex_enter(&ds->ds_lock); |
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diff
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|
1406 /* |
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diff
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|
1407 * Can't delete a branch point. However, if we're destroying |
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PSARC/2009/297 zfs snapshot holds
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diff
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|
1408 * a clone and removing its origin due to it having a user |
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PSARC/2009/297 zfs snapshot holds
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diff
changeset
|
1409 * hold count of 0 and having been marked for deferred destroy, |
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diff
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|
1410 * it's OK for the origin to have a single clone. |
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diff
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|
1411 */ |
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|
1412 if (ds->ds_phys->ds_num_children > |
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PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
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|
1413 (dsda->is_origin_rm ? 2 : 1)) { |
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|
1414 mutex_exit(&ds->ds_lock); |
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PSARC/2009/297 zfs snapshot holds
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|
1415 return (EEXIST); |
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|
1416 } |
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|
1417 mutex_exit(&ds->ds_lock); |
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|
1418 } else if (dsl_dir_is_clone(ds->ds_dir)) { |
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|
1419 return (dsl_dataset_origin_check(dsda, arg2, tx)); |
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|
1420 } |
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|
1421 |
2199 | 1422 /* XXX we should do some i/o error checking... */ |
1423 return (0); | |
1424 } | |
1425 | |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
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|
1426 struct refsarg { |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
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diff
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|
1427 kmutex_t lock; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
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diff
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|
1428 boolean_t gone; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
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diff
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|
1429 kcondvar_t cv; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
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diff
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|
1430 }; |
47572a2f5e73
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|
1431 |
47572a2f5e73
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|
1432 /* ARGSUSED */ |
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|
1433 static void |
47572a2f5e73
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diff
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|
1434 dsl_dataset_refs_gone(dmu_buf_t *db, void *argv) |
47572a2f5e73
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|
1435 { |
47572a2f5e73
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diff
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|
1436 struct refsarg *arg = argv; |
47572a2f5e73
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diff
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|
1437 |
47572a2f5e73
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|
1438 mutex_enter(&arg->lock); |
47572a2f5e73
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diff
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|
1439 arg->gone = TRUE; |
47572a2f5e73
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diff
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|
1440 cv_signal(&arg->cv); |
47572a2f5e73
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|
1441 mutex_exit(&arg->lock); |
47572a2f5e73
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|
1442 } |
47572a2f5e73
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|
1443 |
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|
1444 static void |
47572a2f5e73
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diff
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|
1445 dsl_dataset_drain_refs(dsl_dataset_t *ds, void *tag) |
47572a2f5e73
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|
1446 { |
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|
1447 struct refsarg arg; |
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|
1448 |
47572a2f5e73
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|
1449 mutex_init(&arg.lock, NULL, MUTEX_DEFAULT, NULL); |
47572a2f5e73
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|
1450 cv_init(&arg.cv, NULL, CV_DEFAULT, NULL); |
47572a2f5e73
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|
1451 arg.gone = FALSE; |
47572a2f5e73
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|
1452 (void) dmu_buf_update_user(ds->ds_dbuf, ds, &arg, &ds->ds_phys, |
47572a2f5e73
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|
1453 dsl_dataset_refs_gone); |
47572a2f5e73
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|
1454 dmu_buf_rele(ds->ds_dbuf, tag); |
47572a2f5e73
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|
1455 mutex_enter(&arg.lock); |
47572a2f5e73
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|
1456 while (!arg.gone) |
47572a2f5e73
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|
1457 cv_wait(&arg.cv, &arg.lock); |
47572a2f5e73
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|
1458 ASSERT(arg.gone); |
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|
1459 mutex_exit(&arg.lock); |
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|
1460 ds->ds_dbuf = NULL; |
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|
1461 ds->ds_phys = NULL; |
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|
1462 mutex_destroy(&arg.lock); |
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|
1463 cv_destroy(&arg.cv); |
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|
1464 } |
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|
1465 |
10801
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|
1466 static void |
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diff
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|
1467 remove_from_next_clones(dsl_dataset_t *ds, uint64_t obj, dmu_tx_t *tx) |
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|
1468 { |
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|
1469 objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; |
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|
1470 uint64_t count; |
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|
1471 int err; |
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|
1472 |
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|
1473 ASSERT(ds->ds_phys->ds_num_children >= 2); |
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|
1474 err = zap_remove_int(mos, ds->ds_phys->ds_next_clones_obj, obj, tx); |
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|
1475 /* |
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diff
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|
1476 * The err should not be ENOENT, but a bug in a previous version |
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|
1477 * of the code could cause upgrade_clones_cb() to not set |
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|
1478 * ds_next_snap_obj when it should, leading to a missing entry. |
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|
1479 * If we knew that the pool was created after |
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|
1480 * SPA_VERSION_NEXT_CLONES, we could assert that it isn't |
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|
1481 * ENOENT. However, at least we can check that we don't have |
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|
1482 * too many entries in the next_clones_obj even after failing to |
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|
1483 * remove this one. |
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|
1484 */ |
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|
1485 if (err != ENOENT) { |
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|
1486 VERIFY3U(err, ==, 0); |
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|
1487 } |
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|
1488 ASSERT3U(0, ==, zap_count(mos, ds->ds_phys->ds_next_clones_obj, |
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|
1489 &count)); |
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|
1490 ASSERT3U(count, <=, ds->ds_phys->ds_num_children - 2); |
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|
1491 } |
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|
1492 |
12470
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|
1493 static void |
54258108784b
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|
1494 dsl_dataset_remove_clones_key(dsl_dataset_t *ds, uint64_t mintxg, dmu_tx_t *tx) |
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|
1495 { |
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|
1496 objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; |
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|
1497 zap_cursor_t zc; |
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|
1498 zap_attribute_t za; |
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|
1499 |
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|
1500 /* |
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|
1501 * If it is the old version, dd_clones doesn't exist so we can't |
54258108784b
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|
1502 * find the clones, but deadlist_remove_key() is a no-op so it |
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|
1503 * doesn't matter. |
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|
1504 */ |
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|
1505 if (ds->ds_dir->dd_phys->dd_clones == 0) |
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|
1506 return; |
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1507 |
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1508 for (zap_cursor_init(&zc, mos, ds->ds_dir->dd_phys->dd_clones); |
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1509 zap_cursor_retrieve(&zc, &za) == 0; |
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1510 zap_cursor_advance(&zc)) { |
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1511 dsl_dataset_t *clone; |
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1512 |
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1513 VERIFY3U(0, ==, dsl_dataset_hold_obj(ds->ds_dir->dd_pool, |
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1514 za.za_first_integer, FTAG, &clone)); |
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1515 if (clone->ds_dir->dd_origin_txg > mintxg) { |
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1516 dsl_deadlist_remove_key(&clone->ds_deadlist, |
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1517 mintxg, tx); |
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1518 dsl_dataset_remove_clones_key(clone, mintxg, tx); |
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1519 } |
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1520 dsl_dataset_rele(clone, FTAG); |
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1521 } |
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1522 zap_cursor_fini(&zc); |
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1523 } |
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1524 |
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1525 struct process_old_arg { |
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1526 dsl_dataset_t *ds; |
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1527 dsl_dataset_t *ds_prev; |
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1528 boolean_t after_branch_point; |
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1529 zio_t *pio; |
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1530 uint64_t used, comp, uncomp; |
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1531 }; |
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1532 |
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1533 static int |
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1534 process_old_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) |
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1535 { |
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1536 struct process_old_arg *poa = arg; |
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1537 dsl_pool_t *dp = poa->ds->ds_dir->dd_pool; |
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1538 |
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1539 if (bp->blk_birth <= poa->ds->ds_phys->ds_prev_snap_txg) { |
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1540 dsl_deadlist_insert(&poa->ds->ds_deadlist, bp, tx); |
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1541 if (poa->ds_prev && !poa->after_branch_point && |
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1542 bp->blk_birth > |
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1543 poa->ds_prev->ds_phys->ds_prev_snap_txg) { |
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1544 poa->ds_prev->ds_phys->ds_unique_bytes += |
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1545 bp_get_dsize_sync(dp->dp_spa, bp); |
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1546 } |
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1547 } else { |
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1548 poa->used += bp_get_dsize_sync(dp->dp_spa, bp); |
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1549 poa->comp += BP_GET_PSIZE(bp); |
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1550 poa->uncomp += BP_GET_UCSIZE(bp); |
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1551 dsl_free_sync(poa->pio, dp, tx->tx_txg, bp); |
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1552 } |
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1553 return (0); |
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1554 } |
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1555 |
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1556 static void |
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1557 process_old_deadlist(dsl_dataset_t *ds, dsl_dataset_t *ds_prev, |
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1558 dsl_dataset_t *ds_next, boolean_t after_branch_point, dmu_tx_t *tx) |
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1559 { |
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1560 struct process_old_arg poa = { 0 }; |
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1561 dsl_pool_t *dp = ds->ds_dir->dd_pool; |
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1562 objset_t *mos = dp->dp_meta_objset; |
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1563 |
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1564 ASSERT(ds->ds_deadlist.dl_oldfmt); |
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1565 ASSERT(ds_next->ds_deadlist.dl_oldfmt); |
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1566 |
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1567 poa.ds = ds; |
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1568 poa.ds_prev = ds_prev; |
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1569 poa.after_branch_point = after_branch_point; |
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1570 poa.pio = zio_root(dp->dp_spa, NULL, NULL, ZIO_FLAG_MUSTSUCCEED); |
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1571 VERIFY3U(0, ==, bpobj_iterate(&ds_next->ds_deadlist.dl_bpobj, |
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1572 process_old_cb, &poa, tx)); |
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1573 VERIFY3U(zio_wait(poa.pio), ==, 0); |
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1574 ASSERT3U(poa.used, ==, ds->ds_phys->ds_unique_bytes); |
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1575 |
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1576 /* change snapused */ |
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1577 dsl_dir_diduse_space(ds->ds_dir, DD_USED_SNAP, |
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1578 -poa.used, -poa.comp, -poa.uncomp, tx); |
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1579 |
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1580 /* swap next's deadlist to our deadlist */ |
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1581 dsl_deadlist_close(&ds->ds_deadlist); |
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1582 dsl_deadlist_close(&ds_next->ds_deadlist); |
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1583 SWITCH64(ds_next->ds_phys->ds_deadlist_obj, |
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1584 ds->ds_phys->ds_deadlist_obj); |
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1585 dsl_deadlist_open(&ds->ds_deadlist, mos, ds->ds_phys->ds_deadlist_obj); |
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1586 dsl_deadlist_open(&ds_next->ds_deadlist, mos, |
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1587 ds_next->ds_phys->ds_deadlist_obj); |
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1588 } |
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1589 |
5367 | 1590 void |
12296
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1591 dsl_dataset_destroy_sync(void *arg1, void *tag, dmu_tx_t *tx) |
2199 | 1592 { |
10242
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1593 struct dsl_ds_destroyarg *dsda = arg1; |
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1594 dsl_dataset_t *ds = dsda->ds; |
2199 | 1595 int err; |
1596 int after_branch_point = FALSE; | |
1597 dsl_pool_t *dp = ds->ds_dir->dd_pool; | |
1598 objset_t *mos = dp->dp_meta_objset; | |
1599 dsl_dataset_t *ds_prev = NULL; | |
1600 uint64_t obj; | |
1601 | |
6689
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1602 ASSERT(ds->ds_owner); |
10242
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1603 ASSERT(dsda->defer || ds->ds_phys->ds_num_children <= 1); |
2199 | 1604 ASSERT(ds->ds_prev == NULL || |
1605 ds->ds_prev->ds_phys->ds_next_snap_obj != ds->ds_object); | |
1606 ASSERT3U(ds->ds_phys->ds_bp.blk_birth, <=, tx->tx_txg); | |
1607 | |
10242
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1608 if (dsda->defer) { |
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1609 ASSERT(spa_version(dp->dp_spa) >= SPA_VERSION_USERREFS); |
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1610 if (ds->ds_userrefs > 0 || ds->ds_phys->ds_num_children > 1) { |
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1611 dmu_buf_will_dirty(ds->ds_dbuf, tx); |
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1612 ds->ds_phys->ds_flags |= DS_FLAG_DEFER_DESTROY; |
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1613 return; |
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1614 } |
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1615 } |
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1616 |
6689
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1617 /* signal any waiters that this dataset is going away */ |
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1618 mutex_enter(&ds->ds_lock); |
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1619 ds->ds_owner = dsl_reaper; |
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1620 cv_broadcast(&ds->ds_exclusive_cv); |
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1621 mutex_exit(&ds->ds_lock); |
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1622 |
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1623 if (ds->ds_objset) { |
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1624 dmu_objset_evict(ds->ds_objset); |
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|
1625 ds->ds_objset = NULL; |
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1626 } |
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1627 |
5378
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|
1628 /* Remove our reservation */ |
111aa1baa84a
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|
1629 if (ds->ds_reserved != 0) { |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
1630 dsl_prop_setarg_t psa; |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
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10951
diff
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|
1631 uint64_t value = 0; |
63ab26072e41
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Tom Erickson <Tom.Erickson@Sun.COM>
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10951
diff
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|
1632 |
63ab26072e41
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Tom Erickson <Tom.Erickson@Sun.COM>
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10951
diff
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|
1633 dsl_prop_setarg_init_uint64(&psa, "refreservation", |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
1634 (ZPROP_SRC_NONE | ZPROP_SRC_LOCAL | ZPROP_SRC_RECEIVED), |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
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10951
diff
changeset
|
1635 &value); |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
1636 psa.psa_effective_value = 0; /* predict default value */ |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
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|
1637 |
12296
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|
1638 dsl_dataset_set_reservation_sync(ds, &psa, tx); |
5378
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PSARC 2007/555 zfs fs-only quotas and reservations
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|
1639 ASSERT3U(ds->ds_reserved, ==, 0); |
111aa1baa84a
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diff
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|
1640 } |
111aa1baa84a
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|
1641 |
2199 | 1642 ASSERT(RW_WRITE_HELD(&dp->dp_config_rwlock)); |
1643 | |
12296
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6675946 'zpool status' should show the progress of resilvering for individual disk.
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|
1644 dsl_scan_ds_destroyed(ds, tx); |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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diff
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|
1645 |
2199 | 1646 obj = ds->ds_object; |
789 | 1647 |
1648 if (ds->ds_phys->ds_prev_snap_obj != 0) { | |
1649 if (ds->ds_prev) { | |
1650 ds_prev = ds->ds_prev; | |
1651 } else { | |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
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diff
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|
1652 VERIFY(0 == dsl_dataset_hold_obj(dp, |
47572a2f5e73
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diff
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|
1653 ds->ds_phys->ds_prev_snap_obj, FTAG, &ds_prev)); |
789 | 1654 } |
1655 after_branch_point = | |
1656 (ds_prev->ds_phys->ds_next_snap_obj != obj); | |
1657 | |
1658 dmu_buf_will_dirty(ds_prev->ds_dbuf, tx); | |
1659 if (after_branch_point && | |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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parents:
6992
diff
changeset
|
1660 ds_prev->ds_phys->ds_next_clones_obj != 0) { |
10801
e0bf032e8673
6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10799
diff
changeset
|
1661 remove_from_next_clones(ds_prev, obj, tx); |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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parents:
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diff
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|
1662 if (ds->ds_phys->ds_next_snap_obj != 0) { |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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parents:
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diff
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|
1663 VERIFY(0 == zap_add_int(mos, |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
1664 ds_prev->ds_phys->ds_next_clones_obj, |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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parents:
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diff
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|
1665 ds->ds_phys->ds_next_snap_obj, tx)); |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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diff
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|
1666 } |
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ahrens
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diff
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|
1667 } |
361307ae060d
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diff
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|
1668 if (after_branch_point && |
789 | 1669 ds->ds_phys->ds_next_snap_obj == 0) { |
1670 /* This clone is toast. */ | |
1671 ASSERT(ds_prev->ds_phys->ds_num_children > 1); | |
1672 ds_prev->ds_phys->ds_num_children--; | |
10242
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diff
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|
1673 |
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|
1674 /* |
c40d075fbca6
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diff
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|
1675 * If the clone's origin has no other clones, no |
c40d075fbca6
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parents:
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diff
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|
1676 * user holds, and has been marked for deferred |
c40d075fbca6
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Chris Kirby <chris.kirby@sun.com>
parents:
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diff
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|
1677 * deletion, then we should have done the necessary |
c40d075fbca6
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Chris Kirby <chris.kirby@sun.com>
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diff
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|
1678 * destroy setup for it. |
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|
1679 */ |
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diff
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|
1680 if (ds_prev->ds_phys->ds_num_children == 1 && |
c40d075fbca6
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diff
changeset
|
1681 ds_prev->ds_userrefs == 0 && |
c40d075fbca6
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diff
changeset
|
1682 DS_IS_DEFER_DESTROY(ds_prev)) { |
c40d075fbca6
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Chris Kirby <chris.kirby@sun.com>
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diff
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|
1683 ASSERT3P(dsda->rm_origin, !=, NULL); |
c40d075fbca6
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diff
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|
1684 } else { |
c40d075fbca6
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Chris Kirby <chris.kirby@sun.com>
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diff
changeset
|
1685 ASSERT3P(dsda->rm_origin, ==, NULL); |
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diff
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|
1686 } |
789 | 1687 } else if (!after_branch_point) { |
1688 ds_prev->ds_phys->ds_next_snap_obj = | |
1689 ds->ds_phys->ds_next_snap_obj; | |
1690 } | |
1691 } | |
1692 | |
12296
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Lin Ling <Lin.Ling@Sun.COM>
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diff
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|
1693 if (dsl_dataset_is_snapshot(ds)) { |
789 | 1694 dsl_dataset_t *ds_next; |
5378
111aa1baa84a
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diff
changeset
|
1695 uint64_t old_unique; |
12470
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Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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diff
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|
1696 uint64_t used = 0, comp = 0, uncomp = 0; |
789 | 1697 |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
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parents:
6643
diff
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|
1698 VERIFY(0 == dsl_dataset_hold_obj(dp, |
47572a2f5e73
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6643
diff
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|
1699 ds->ds_phys->ds_next_snap_obj, FTAG, &ds_next)); |
789 | 1700 ASSERT3U(ds_next->ds_phys->ds_prev_snap_obj, ==, obj); |
1701 | |
12296
7cf402a7f374
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Lin Ling <Lin.Ling@Sun.COM>
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diff
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|
1702 old_unique = ds_next->ds_phys->ds_unique_bytes; |
5378
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diff
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|
1703 |
789 | 1704 dmu_buf_will_dirty(ds_next->ds_dbuf, tx); |
1705 ds_next->ds_phys->ds_prev_snap_obj = | |
1706 ds->ds_phys->ds_prev_snap_obj; | |
1707 ds_next->ds_phys->ds_prev_snap_txg = | |
1708 ds->ds_phys->ds_prev_snap_txg; | |
1709 ASSERT3U(ds->ds_phys->ds_prev_snap_txg, ==, | |
1710 ds_prev ? ds_prev->ds_phys->ds_creation_txg : 0); | |
1711 | |
12470
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|
1712 |
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diff
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|
1713 if (ds_next->ds_deadlist.dl_oldfmt) { |
54258108784b
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diff
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|
1714 process_old_deadlist(ds, ds_prev, ds_next, |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
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|
1715 after_branch_point, tx); |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
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diff
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|
1716 } else { |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
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diff
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|
1717 /* Adjust prev's unique space. */ |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
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diff
changeset
|
1718 if (ds_prev && !after_branch_point) { |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
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diff
changeset
|
1719 dsl_deadlist_space_range(&ds_next->ds_deadlist, |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
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diff
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|
1720 ds_prev->ds_phys->ds_prev_snap_txg, |
54258108784b
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diff
changeset
|
1721 ds->ds_phys->ds_prev_snap_txg, |
54258108784b
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diff
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|
1722 &used, &comp, &uncomp); |
54258108784b
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diff
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|
1723 ds_prev->ds_phys->ds_unique_bytes += used; |
789 | 1724 } |
12470
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
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diff
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|
1725 |
54258108784b
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12450
diff
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|
1726 /* Adjust snapused. */ |
54258108784b
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diff
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|
1727 dsl_deadlist_space_range(&ds_next->ds_deadlist, |
54258108784b
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diff
changeset
|
1728 ds->ds_phys->ds_prev_snap_txg, UINT64_MAX, |
54258108784b
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diff
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|
1729 &used, &comp, &uncomp); |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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12450
diff
changeset
|
1730 dsl_dir_diduse_space(ds->ds_dir, DD_USED_SNAP, |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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12450
diff
changeset
|
1731 -used, -comp, -uncomp, tx); |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
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diff
changeset
|
1732 |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
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diff
changeset
|
1733 /* Move blocks to be freed to pool's free list. */ |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
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changeset
|
1734 dsl_deadlist_move_bpobj(&ds_next->ds_deadlist, |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
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diff
changeset
|
1735 &dp->dp_free_bpobj, ds->ds_phys->ds_prev_snap_txg, |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
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diff
changeset
|
1736 tx); |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
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diff
changeset
|
1737 dsl_dir_diduse_space(tx->tx_pool->dp_free_dir, |
54258108784b
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|
1738 DD_USED_HEAD, used, comp, uncomp, tx); |
54258108784b
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diff
changeset
|
1739 dsl_dir_dirty(tx->tx_pool->dp_free_dir, tx); |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
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|
1740 |
54258108784b
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diff
changeset
|
1741 /* Merge our deadlist into next's and free it. */ |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
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changeset
|
1742 dsl_deadlist_merge(&ds_next->ds_deadlist, |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
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changeset
|
1743 ds->ds_phys->ds_deadlist_obj, tx); |
789 | 1744 } |
12470
54258108784b
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|
1745 dsl_deadlist_close(&ds->ds_deadlist); |
54258108784b
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changeset
|
1746 dsl_deadlist_free(mos, ds->ds_phys->ds_deadlist_obj, tx); |
54258108784b
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changeset
|
1747 |
54258108784b
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|
1748 /* Collapse range in clone heads */ |
54258108784b
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diff
changeset
|
1749 dsl_dataset_remove_clones_key(ds, |
54258108784b
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diff
changeset
|
1750 ds->ds_phys->ds_creation_txg, tx); |
789 | 1751 |
12296
7cf402a7f374
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|
1752 if (dsl_dataset_is_snapshot(ds_next)) { |
12470
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|
1753 dsl_dataset_t *ds_nextnext; |
54258108784b
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|
1754 |
789 | 1755 /* |
1756 * Update next's unique to include blocks which | |
1757 * were previously shared by only this snapshot | |
1758 * and it. Those blocks will be born after the | |
1759 * prev snap and before this snap, and will have | |
1760 * died after the next snap and before the one | |
1761 * after that (ie. be on the snap after next's | |
1762 * deadlist). | |
1763 */ | |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
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diff
changeset
|
1764 VERIFY(0 == dsl_dataset_hold_obj(dp, |
47572a2f5e73
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diff
changeset
|
1765 ds_next->ds_phys->ds_next_snap_obj, |
12470
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|
1766 FTAG, &ds_nextnext)); |
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changeset
|
1767 dsl_deadlist_space_range(&ds_nextnext->ds_deadlist, |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
1768 ds->ds_phys->ds_prev_snap_txg, |
12470
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|
1769 ds->ds_phys->ds_creation_txg, |
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|
1770 &used, &comp, &uncomp); |
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|
1771 ds_next->ds_phys->ds_unique_bytes += used; |
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|
1772 dsl_dataset_rele(ds_nextnext, FTAG); |
789 | 1773 ASSERT3P(ds_next->ds_prev, ==, NULL); |
12470
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|
1774 |
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1775 /* Collapse range in this head. */ |
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1776 dsl_dataset_t *hds; |
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1777 VERIFY3U(0, ==, dsl_dataset_hold_obj(dp, |
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1778 ds->ds_dir->dd_phys->dd_head_dataset_obj, |
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1779 FTAG, &hds)); |
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1780 dsl_deadlist_remove_key(&hds->ds_deadlist, |
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1781 ds->ds_phys->ds_creation_txg, tx); |
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1782 dsl_dataset_rele(hds, FTAG); |
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1783 |
789 | 1784 } else { |
1785 ASSERT3P(ds_next->ds_prev, ==, ds); | |
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1786 dsl_dataset_drop_ref(ds_next->ds_prev, ds_next); |
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1787 ds_next->ds_prev = NULL; |
789 | 1788 if (ds_prev) { |
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1789 VERIFY(0 == dsl_dataset_get_ref(dp, |
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1790 ds->ds_phys->ds_prev_snap_obj, |
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1791 ds_next, &ds_next->ds_prev)); |
789 | 1792 } |
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1793 |
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1794 dsl_dataset_recalc_head_uniq(ds_next); |
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1795 |
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1796 /* |
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1797 * Reduce the amount of our unconsmed refreservation |
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1798 * being charged to our parent by the amount of |
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1799 * new unique data we have gained. |
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1800 */ |
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1801 if (old_unique < ds_next->ds_reserved) { |
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1802 int64_t mrsdelta; |
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1803 uint64_t new_unique = |
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1804 ds_next->ds_phys->ds_unique_bytes; |
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1805 |
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1806 ASSERT(old_unique <= new_unique); |
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1807 mrsdelta = MIN(new_unique - old_unique, |
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1808 ds_next->ds_reserved - old_unique); |
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1809 dsl_dir_diduse_space(ds->ds_dir, |
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1810 DD_USED_REFRSRV, -mrsdelta, 0, 0, tx); |
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1811 } |
789 | 1812 } |
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1813 dsl_dataset_rele(ds_next, FTAG); |
789 | 1814 } else { |
1815 /* | |
1816 * There's no next snapshot, so this is a head dataset. | |
1817 * Destroy the deadlist. Unless it's a clone, the | |
1818 * deadlist should be empty. (If it's a clone, it's | |
1819 * safe to ignore the deadlist contents.) | |
1820 */ | |
1821 struct killarg ka; | |
1822 | |
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1823 dsl_deadlist_close(&ds->ds_deadlist); |
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1824 dsl_deadlist_free(mos, ds->ds_phys->ds_deadlist_obj, tx); |
789 | 1825 ds->ds_phys->ds_deadlist_obj = 0; |
1826 | |
1827 /* | |
1828 * Free everything that we point to (that's born after | |
1829 * the previous snapshot, if we are a clone) | |
1830 * | |
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1831 * NB: this should be very quick, because we already |
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1832 * freed all the objects in open context. |
789 | 1833 */ |
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1834 ka.ds = ds; |
789 | 1835 ka.tx = tx; |
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1836 err = traverse_dataset(ds, ds->ds_phys->ds_prev_snap_txg, |
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1837 TRAVERSE_POST, kill_blkptr, &ka); |
789 | 1838 ASSERT3U(err, ==, 0); |
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1839 ASSERT(!DS_UNIQUE_IS_ACCURATE(ds) || |
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1840 ds->ds_phys->ds_unique_bytes == 0); |
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1841 |
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1842 if (ds->ds_prev != NULL) { |
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1843 if (spa_version(dp->dp_spa) >= SPA_VERSION_DIR_CLONES) { |
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1844 VERIFY3U(0, ==, zap_remove_int(mos, |
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1845 ds->ds_prev->ds_dir->dd_phys->dd_clones, |
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1846 ds->ds_object, tx)); |
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1847 } |
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1848 dsl_dataset_rele(ds->ds_prev, ds); |
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1849 ds->ds_prev = ds_prev = NULL; |
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1850 } |
789 | 1851 } |
1852 | |
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1853 if (ds->ds_dir->dd_phys->dd_head_dataset_obj == ds->ds_object) { |
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1854 /* Erase the link in the dir */ |
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1855 dmu_buf_will_dirty(ds->ds_dir->dd_dbuf, tx); |
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1856 ds->ds_dir->dd_phys->dd_head_dataset_obj = 0; |
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1857 ASSERT(ds->ds_phys->ds_snapnames_zapobj != 0); |
789 | 1858 err = zap_destroy(mos, ds->ds_phys->ds_snapnames_zapobj, tx); |
1859 ASSERT(err == 0); | |
1860 } else { | |
1861 /* remove from snapshot namespace */ | |
1862 dsl_dataset_t *ds_head; | |
6689
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1863 ASSERT(ds->ds_phys->ds_snapnames_zapobj == 0); |
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1864 VERIFY(0 == dsl_dataset_hold_obj(dp, |
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1865 ds->ds_dir->dd_phys->dd_head_dataset_obj, FTAG, &ds_head)); |
2207
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6439370 assertion failures possible in dsl_dataset_destroy_sync()
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|
1866 VERIFY(0 == dsl_dataset_get_snapname(ds)); |
789 | 1867 #ifdef ZFS_DEBUG |
1868 { | |
1869 uint64_t val; | |
6492
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|
1870 |
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1871 err = dsl_dataset_snap_lookup(ds_head, |
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1872 ds->ds_snapname, &val); |
789 | 1873 ASSERT3U(err, ==, 0); |
1874 ASSERT3U(val, ==, obj); | |
1875 } | |
1876 #endif | |
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1877 err = dsl_dataset_snap_remove(ds_head, ds->ds_snapname, tx); |
789 | 1878 ASSERT(err == 0); |
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1879 dsl_dataset_rele(ds_head, FTAG); |
789 | 1880 } |
1881 | |
1882 if (ds_prev && ds->ds_prev != ds_prev) | |
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1883 dsl_dataset_rele(ds_prev, FTAG); |
789 | 1884 |
5094 | 1885 spa_prop_clear_bootfs(dp->dp_spa, ds->ds_object, tx); |
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1886 spa_history_log_internal(LOG_DS_DESTROY, dp->dp_spa, tx, |
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1887 "dataset = %llu", ds->ds_object); |
4543 | 1888 |
7046
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1889 if (ds->ds_phys->ds_next_clones_obj != 0) { |
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1890 uint64_t count; |
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1891 ASSERT(0 == zap_count(mos, |
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1892 ds->ds_phys->ds_next_clones_obj, &count) && count == 0); |
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1893 VERIFY(0 == dmu_object_free(mos, |
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1894 ds->ds_phys->ds_next_clones_obj, tx)); |
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1895 } |
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1896 if (ds->ds_phys->ds_props_obj != 0) |
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1897 VERIFY(0 == zap_destroy(mos, ds->ds_phys->ds_props_obj, tx)); |
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1898 if (ds->ds_phys->ds_userrefs_obj != 0) |
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1899 VERIFY(0 == zap_destroy(mos, ds->ds_phys->ds_userrefs_obj, tx)); |
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1900 dsl_dir_close(ds->ds_dir, ds); |
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1901 ds->ds_dir = NULL; |
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1902 dsl_dataset_drain_refs(ds, tag); |
2199 | 1903 VERIFY(0 == dmu_object_free(mos, obj, tx)); |
10242
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1904 |
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1905 if (dsda->rm_origin) { |
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1906 /* |
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1907 * Remove the origin of the clone we just destroyed. |
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1908 */ |
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1909 struct dsl_ds_destroyarg ndsda = {0}; |
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1910 |
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1911 ndsda.ds = dsda->rm_origin; |
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1912 dsl_dataset_destroy_sync(&ndsda, tag, tx); |
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1913 } |
2199 | 1914 } |
1915 | |
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1916 static int |
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1917 dsl_dataset_snapshot_reserve_space(dsl_dataset_t *ds, dmu_tx_t *tx) |
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1918 { |
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1919 uint64_t asize; |
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1920 |
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1921 if (!dmu_tx_is_syncing(tx)) |
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1922 return (0); |
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1923 |
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1924 /* |
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1925 * If there's an fs-only reservation, any blocks that might become |
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1926 * owned by the snapshot dataset must be accommodated by space |
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1927 * outside of the reservation. |
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1928 */ |
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1929 ASSERT(ds->ds_reserved == 0 || DS_UNIQUE_IS_ACCURATE(ds)); |
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1930 asize = MIN(ds->ds_phys->ds_unique_bytes, ds->ds_reserved); |
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1931 if (asize > dsl_dir_space_available(ds->ds_dir, NULL, 0, FALSE)) |
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1932 return (ENOSPC); |
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1933 |
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1934 /* |
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1935 * Propogate any reserved space for this snapshot to other |
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1936 * snapshot checks in this sync group. |
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1937 */ |
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1938 if (asize > 0) |
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1939 dsl_dir_willuse_space(ds->ds_dir, asize, tx); |
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1940 |
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1941 return (0); |
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1942 } |
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1943 |
2199 | 1944 int |
1945 dsl_dataset_snapshot_check(void *arg1, void *arg2, dmu_tx_t *tx) | |
1946 { | |
5367 | 1947 dsl_dataset_t *ds = arg1; |
2199 | 1948 const char *snapname = arg2; |
1949 int err; | |
1950 uint64_t value; | |
789 | 1951 |
1952 /* | |
2199 | 1953 * We don't allow multiple snapshots of the same txg. If there |
1954 * is already one, try again. | |
1955 */ | |
1956 if (ds->ds_phys->ds_prev_snap_txg >= tx->tx_txg) | |
1957 return (EAGAIN); | |
1958 | |
1959 /* | |
1960 * Check for conflicting name snapshot name. | |
789 | 1961 */ |
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1962 err = dsl_dataset_snap_lookup(ds, snapname, &value); |
2199 | 1963 if (err == 0) |
1964 return (EEXIST); | |
1965 if (err != ENOENT) | |
1966 return (err); | |
789 | 1967 |
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1968 /* |
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1969 * Check that the dataset's name is not too long. Name consists |
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1970 * of the dataset's length + 1 for the @-sign + snapshot name's length |
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1971 */ |
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1972 if (dsl_dataset_namelen(ds) + 1 + strlen(snapname) >= MAXNAMELEN) |
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1973 return (ENAMETOOLONG); |
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1974 |
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1975 err = dsl_dataset_snapshot_reserve_space(ds, tx); |
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1976 if (err) |
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1977 return (err); |
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1978 |
2199 | 1979 ds->ds_trysnap_txg = tx->tx_txg; |
789 | 1980 return (0); |
1981 } | |
1982 | |
2199 | 1983 void |
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1984 dsl_dataset_snapshot_sync(void *arg1, void *arg2, dmu_tx_t *tx) |
789 | 1985 { |
5367 | 1986 dsl_dataset_t *ds = arg1; |
2199 | 1987 const char *snapname = arg2; |
1988 dsl_pool_t *dp = ds->ds_dir->dd_pool; | |
789 | 1989 dmu_buf_t *dbuf; |
1990 dsl_dataset_phys_t *dsphys; | |
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1991 uint64_t dsobj, crtxg; |
789 | 1992 objset_t *mos = dp->dp_meta_objset; |
1993 int err; | |
1994 | |
2199 | 1995 ASSERT(RW_WRITE_HELD(&dp->dp_config_rwlock)); |
789 | 1996 |
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1997 /* |
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1998 * The origin's ds_creation_txg has to be < TXG_INITIAL |
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1999 */ |
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2000 if (strcmp(snapname, ORIGIN_DIR_NAME) == 0) |
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2001 crtxg = 1; |
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2002 else |
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2003 crtxg = tx->tx_txg; |
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2004 |
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2005 dsobj = dmu_object_alloc(mos, DMU_OT_DSL_DATASET, 0, |
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2006 DMU_OT_DSL_DATASET, sizeof (dsl_dataset_phys_t), tx); |
1544 | 2007 VERIFY(0 == dmu_bonus_hold(mos, dsobj, FTAG, &dbuf)); |
789 | 2008 dmu_buf_will_dirty(dbuf, tx); |
2009 dsphys = dbuf->db_data; | |
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2010 bzero(dsphys, sizeof (dsl_dataset_phys_t)); |
2199 | 2011 dsphys->ds_dir_obj = ds->ds_dir->dd_object; |
789 | 2012 dsphys->ds_fsid_guid = unique_create(); |
2013 (void) random_get_pseudo_bytes((void*)&dsphys->ds_guid, | |
2014 sizeof (dsphys->ds_guid)); | |
2015 dsphys->ds_prev_snap_obj = ds->ds_phys->ds_prev_snap_obj; | |
2016 dsphys->ds_prev_snap_txg = ds->ds_phys->ds_prev_snap_txg; | |
2017 dsphys->ds_next_snap_obj = ds->ds_object; | |
2018 dsphys->ds_num_children = 1; | |
2019 dsphys->ds_creation_time = gethrestime_sec(); | |
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2020 dsphys->ds_creation_txg = crtxg; |
789 | 2021 dsphys->ds_deadlist_obj = ds->ds_phys->ds_deadlist_obj; |
2022 dsphys->ds_used_bytes = ds->ds_phys->ds_used_bytes; | |
2023 dsphys->ds_compressed_bytes = ds->ds_phys->ds_compressed_bytes; | |
2024 dsphys->ds_uncompressed_bytes = ds->ds_phys->ds_uncompressed_bytes; | |
2082 | 2025 dsphys->ds_flags = ds->ds_phys->ds_flags; |
789 | 2026 dsphys->ds_bp = ds->ds_phys->ds_bp; |
1544 | 2027 dmu_buf_rele(dbuf, FTAG); |
789 | 2028 |
2199 | 2029 ASSERT3U(ds->ds_prev != 0, ==, ds->ds_phys->ds_prev_snap_obj != 0); |
2030 if (ds->ds_prev) { | |
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2031 uint64_t next_clones_obj = |
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2032 ds->ds_prev->ds_phys->ds_next_clones_obj; |
2199 | 2033 ASSERT(ds->ds_prev->ds_phys->ds_next_snap_obj == |
789 | 2034 ds->ds_object || |
2199 | 2035 ds->ds_prev->ds_phys->ds_num_children > 1); |
2036 if (ds->ds_prev->ds_phys->ds_next_snap_obj == ds->ds_object) { | |
2037 dmu_buf_will_dirty(ds->ds_prev->ds_dbuf, tx); | |
789 | 2038 ASSERT3U(ds->ds_phys->ds_prev_snap_txg, ==, |
2199 | 2039 ds->ds_prev->ds_phys->ds_creation_txg); |
2040 ds->ds_prev->ds_phys->ds_next_snap_obj = dsobj; | |
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2041 } else if (next_clones_obj != 0) { |
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2042 remove_from_next_clones(ds->ds_prev, |
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2043 dsphys->ds_next_snap_obj, tx); |
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2044 VERIFY3U(0, ==, zap_add_int(mos, |
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2045 next_clones_obj, dsobj, tx)); |
789 | 2046 } |
2047 } | |
2048 | |
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2049 /* |
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2050 * If we have a reference-reservation on this dataset, we will |
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2051 * need to increase the amount of refreservation being charged |
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2052 * since our unique space is going to zero. |
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2053 */ |
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2054 if (ds->ds_reserved) { |
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2055 int64_t delta; |
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2056 ASSERT(DS_UNIQUE_IS_ACCURATE(ds)); |
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2057 delta = MIN(ds->ds_phys->ds_unique_bytes, ds->ds_reserved); |
7390
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2058 dsl_dir_diduse_space(ds->ds_dir, DD_USED_REFRSRV, |
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2059 delta, 0, 0, tx); |
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2060 } |
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2061 |
789 | 2062 dmu_buf_will_dirty(ds->ds_dbuf, tx); |
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2063 zfs_dbgmsg("taking snapshot %s@%s/%llu; newkey=%llu", |
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2064 ds->ds_dir->dd_myname, snapname, dsobj, |
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2065 ds->ds_phys->ds_prev_snap_txg); |
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2066 ds->ds_phys->ds_deadlist_obj = dsl_deadlist_clone(&ds->ds_deadlist, |
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2067 UINT64_MAX, ds->ds_phys->ds_prev_snap_obj, tx); |
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2068 dsl_deadlist_close(&ds->ds_deadlist); |
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2069 dsl_deadlist_open(&ds->ds_deadlist, mos, ds->ds_phys->ds_deadlist_obj); |
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2070 dsl_deadlist_add_key(&ds->ds_deadlist, |
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2071 ds->ds_phys->ds_prev_snap_txg, tx); |
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2072 |
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2073 ASSERT3U(ds->ds_phys->ds_prev_snap_txg, <, tx->tx_txg); |
789 | 2074 ds->ds_phys->ds_prev_snap_obj = dsobj; |
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2075 ds->ds_phys->ds_prev_snap_txg = crtxg; |
789 | 2076 ds->ds_phys->ds_unique_bytes = 0; |
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2077 if (spa_version(dp->dp_spa) >= SPA_VERSION_UNIQUE_ACCURATE) |
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2078 ds->ds_phys->ds_flags |= DS_FLAG_UNIQUE_ACCURATE; |
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2079 |
789 | 2080 err = zap_add(mos, ds->ds_phys->ds_snapnames_zapobj, |
2081 snapname, 8, 1, &dsobj, tx); | |
2082 ASSERT(err == 0); | |
2083 | |
2084 if (ds->ds_prev) | |
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2085 dsl_dataset_drop_ref(ds->ds_prev, ds); |
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2086 VERIFY(0 == dsl_dataset_get_ref(dp, |
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2087 ds->ds_phys->ds_prev_snap_obj, ds, &ds->ds_prev)); |
4543 | 2088 |
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2089 dsl_scan_ds_snapshotted(ds, tx); |
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2090 |
10373
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2091 dsl_dir_snap_cmtime_update(ds->ds_dir); |
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2092 |
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2093 spa_history_log_internal(LOG_DS_SNAPSHOT, dp->dp_spa, tx, |
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2094 "dataset = %llu", dsobj); |
789 | 2095 } |
2096 | |
2097 void | |
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2098 dsl_dataset_sync(dsl_dataset_t *ds, zio_t *zio, dmu_tx_t *tx) |
789 | 2099 { |
2100 ASSERT(dmu_tx_is_syncing(tx)); | |
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2101 ASSERT(ds->ds_objset != NULL); |
789 | 2102 ASSERT(ds->ds_phys->ds_next_snap_obj == 0); |
2103 | |
4787 | 2104 /* |
2105 * in case we had to change ds_fsid_guid when we opened it, | |
2106 * sync it out now. | |
2107 */ | |
2108 dmu_buf_will_dirty(ds->ds_dbuf, tx); | |
2109 ds->ds_phys->ds_fsid_guid = ds->ds_fsid_guid; | |
2110 | |
789 | 2111 dsl_dir_dirty(ds->ds_dir, tx); |
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2112 dmu_objset_sync(ds->ds_objset, zio, tx); |
789 | 2113 } |
2114 | |
2115 void | |
2885 | 2116 dsl_dataset_stats(dsl_dataset_t *ds, nvlist_t *nv) |
789 | 2117 { |
5378
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|
2118 uint64_t refd, avail, uobjs, aobjs; |
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|
2119 |
2885 | 2120 dsl_dir_stats(ds->ds_dir, nv); |
789 | 2121 |
5378
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|
2122 dsl_dataset_space(ds, &refd, &avail, &uobjs, &aobjs); |
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|
2123 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_AVAILABLE, avail); |
111aa1baa84a
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|
2124 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_REFERENCED, refd); |
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|
2125 |
2885 | 2126 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_CREATION, |
2127 ds->ds_phys->ds_creation_time); | |
2128 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_CREATETXG, | |
2129 ds->ds_phys->ds_creation_txg); | |
5378
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|
2130 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_REFQUOTA, |
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|
2131 ds->ds_quota); |
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|
2132 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_REFRESERVATION, |
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PSARC 2007/555 zfs fs-only quotas and reservations
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diff
changeset
|
2133 ds->ds_reserved); |
6643
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
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6502
diff
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|
2134 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
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|
2135 ds->ds_phys->ds_guid); |
10575
2a8816c5173b
6882196 resource.* events shouldn't be posted during spa_tryimport()
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
10385
diff
changeset
|
2136 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_UNIQUE, |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
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|
2137 ds->ds_phys->ds_unique_bytes); |
10575
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6882196 resource.* events shouldn't be posted during spa_tryimport()
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|
2138 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_OBJSETID, |
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6882196 resource.* events shouldn't be posted during spa_tryimport()
Eric Schrock <Eric.Schrock@Sun.COM>
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10385
diff
changeset
|
2139 ds->ds_object); |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
2140 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_USERREFS, |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
2141 ds->ds_userrefs); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
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10204
diff
changeset
|
2142 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_DEFER_DESTROY, |
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|
2143 DS_IS_DEFER_DESTROY(ds) ? 1 : 0); |
789 | 2144 |
2145 if (ds->ds_phys->ds_next_snap_obj) { | |
2146 /* | |
2147 * This is a snapshot; override the dd's space used with | |
2885 | 2148 * our unique space and compression ratio. |
789 | 2149 */ |
2885 | 2150 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_USED, |
2151 ds->ds_phys->ds_unique_bytes); | |
2152 dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_COMPRESSRATIO, | |
2153 ds->ds_phys->ds_compressed_bytes == 0 ? 100 : | |
2154 (ds->ds_phys->ds_uncompressed_bytes * 100 / | |
2155 ds->ds_phys->ds_compressed_bytes)); | |
789 | 2156 } |
2157 } | |
2158 | |
2885 | 2159 void |
2160 dsl_dataset_fast_stat(dsl_dataset_t *ds, dmu_objset_stats_t *stat) | |
789 | 2161 { |
2885 | 2162 stat->dds_creation_txg = ds->ds_phys->ds_creation_txg; |
2163 stat->dds_inconsistent = ds->ds_phys->ds_flags & DS_FLAG_INCONSISTENT; | |
5367 | 2164 stat->dds_guid = ds->ds_phys->ds_guid; |
2885 | 2165 if (ds->ds_phys->ds_next_snap_obj) { |
2166 stat->dds_is_snapshot = B_TRUE; | |
2167 stat->dds_num_clones = ds->ds_phys->ds_num_children - 1; | |
8228
51e9ca9ee3a5
6572357 libzfs should do more to avoid mnttab lookups
Eric Taylor <Eric.Taylor@Sun.COM>
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diff
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|
2168 } else { |
51e9ca9ee3a5
6572357 libzfs should do more to avoid mnttab lookups
Eric Taylor <Eric.Taylor@Sun.COM>
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|
2169 stat->dds_is_snapshot = B_FALSE; |
51e9ca9ee3a5
6572357 libzfs should do more to avoid mnttab lookups
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parents:
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|
2170 stat->dds_num_clones = 0; |
2885 | 2171 } |
2172 | |
2173 /* clone origin is really a dsl_dir thing... */ | |
5446 | 2174 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
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6992
diff
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|
2175 if (dsl_dir_is_clone(ds->ds_dir)) { |
2885 | 2176 dsl_dataset_t *ods; |
2177 | |
6689
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|
2178 VERIFY(0 == dsl_dataset_get_ref(ds->ds_dir->dd_pool, |
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|
2179 ds->ds_dir->dd_phys->dd_origin_obj, FTAG, &ods)); |
5367 | 2180 dsl_dataset_name(ods, stat->dds_origin); |
6689
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|
2181 dsl_dataset_drop_ref(ods, FTAG); |
8228
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|
2182 } else { |
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|
2183 stat->dds_origin[0] = '\0'; |
2885 | 2184 } |
5446 | 2185 rw_exit(&ds->ds_dir->dd_pool->dp_config_rwlock); |
2885 | 2186 } |
2187 | |
2188 uint64_t | |
2189 dsl_dataset_fsid_guid(dsl_dataset_t *ds) | |
2190 { | |
4787 | 2191 return (ds->ds_fsid_guid); |
2885 | 2192 } |
2193 | |
2194 void | |
2195 dsl_dataset_space(dsl_dataset_t *ds, | |
2196 uint64_t *refdbytesp, uint64_t *availbytesp, | |
2197 uint64_t *usedobjsp, uint64_t *availobjsp) | |
2198 { | |
2199 *refdbytesp = ds->ds_phys->ds_used_bytes; | |
2200 *availbytesp = dsl_dir_space_available(ds->ds_dir, NULL, 0, TRUE); | |
5378
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2201 if (ds->ds_reserved > ds->ds_phys->ds_unique_bytes) |
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2202 *availbytesp += ds->ds_reserved - ds->ds_phys->ds_unique_bytes; |
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|
2203 if (ds->ds_quota != 0) { |
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PSARC 2007/555 zfs fs-only quotas and reservations
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|
2204 /* |
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PSARC 2007/555 zfs fs-only quotas and reservations
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|
2205 * Adjust available bytes according to refquota |
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PSARC 2007/555 zfs fs-only quotas and reservations
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|
2206 */ |
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PSARC 2007/555 zfs fs-only quotas and reservations
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|
2207 if (*refdbytesp < ds->ds_quota) |
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PSARC 2007/555 zfs fs-only quotas and reservations
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|
2208 *availbytesp = MIN(*availbytesp, |
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|
2209 ds->ds_quota - *refdbytesp); |
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PSARC 2007/555 zfs fs-only quotas and reservations
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diff
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|
2210 else |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
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diff
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|
2211 *availbytesp = 0; |
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PSARC 2007/555 zfs fs-only quotas and reservations
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|
2212 } |
2885 | 2213 *usedobjsp = ds->ds_phys->ds_bp.blk_fill; |
2214 *availobjsp = DN_MAX_OBJECT - *usedobjsp; | |
789 | 2215 } |
2216 | |
5326
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6425096 want online 'zfs recv' (read only and read/write)
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|
2217 boolean_t |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
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|
2218 dsl_dataset_modified_since_lastsnap(dsl_dataset_t *ds) |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
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diff
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|
2219 { |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
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5094
diff
changeset
|
2220 dsl_pool_t *dp = ds->ds_dir->dd_pool; |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
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diff
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|
2221 |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
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diff
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|
2222 ASSERT(RW_LOCK_HELD(&dp->dp_config_rwlock) || |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
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5094
diff
changeset
|
2223 dsl_pool_sync_context(dp)); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
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5094
diff
changeset
|
2224 if (ds->ds_prev == NULL) |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
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5094
diff
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|
2225 return (B_FALSE); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
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diff
changeset
|
2226 if (ds->ds_phys->ds_bp.blk_birth > |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
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5094
diff
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|
2227 ds->ds_prev->ds_phys->ds_creation_txg) |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
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5094
diff
changeset
|
2228 return (B_TRUE); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2229 return (B_FALSE); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2230 } |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
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diff
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|
2231 |
2199 | 2232 /* ARGSUSED */ |
789 | 2233 static int |
2199 | 2234 dsl_dataset_snapshot_rename_check(void *arg1, void *arg2, dmu_tx_t *tx) |
789 | 2235 { |
2199 | 2236 dsl_dataset_t *ds = arg1; |
2237 char *newsnapname = arg2; | |
2238 dsl_dir_t *dd = ds->ds_dir; | |
2239 dsl_dataset_t *hds; | |
2240 uint64_t val; | |
789 | 2241 int err; |
2242 | |
6689
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6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
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6643
diff
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|
2243 err = dsl_dataset_hold_obj(dd->dd_pool, |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
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6643
diff
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|
2244 dd->dd_phys->dd_head_dataset_obj, FTAG, &hds); |
789 | 2245 if (err) |
2246 return (err); | |
2247 | |
2199 | 2248 /* new name better not be in use */ |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
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6643
diff
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|
2249 err = dsl_dataset_snap_lookup(hds, newsnapname, &val); |
47572a2f5e73
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6643
diff
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|
2250 dsl_dataset_rele(hds, FTAG); |
789 | 2251 |
2199 | 2252 if (err == 0) |
2253 err = EEXIST; | |
2254 else if (err == ENOENT) | |
2255 err = 0; | |
4007 | 2256 |
2257 /* dataset name + 1 for the "@" + the new snapshot name must fit */ | |
2258 if (dsl_dir_namelen(ds->ds_dir) + 1 + strlen(newsnapname) >= MAXNAMELEN) | |
2259 err = ENAMETOOLONG; | |
2260 | |
2199 | 2261 return (err); |
2262 } | |
789 | 2263 |
2199 | 2264 static void |
12296
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6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
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|
2265 dsl_dataset_snapshot_rename_sync(void *arg1, void *arg2, dmu_tx_t *tx) |
2199 | 2266 { |
2267 dsl_dataset_t *ds = arg1; | |
4543 | 2268 const char *newsnapname = arg2; |
2199 | 2269 dsl_dir_t *dd = ds->ds_dir; |
2270 objset_t *mos = dd->dd_pool->dp_meta_objset; | |
2271 dsl_dataset_t *hds; | |
2272 int err; | |
789 | 2273 |
2199 | 2274 ASSERT(ds->ds_phys->ds_next_snap_obj != 0); |
789 | 2275 |
6689
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|
2276 VERIFY(0 == dsl_dataset_hold_obj(dd->dd_pool, |
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|
2277 dd->dd_phys->dd_head_dataset_obj, FTAG, &hds)); |
789 | 2278 |
2199 | 2279 VERIFY(0 == dsl_dataset_get_snapname(ds)); |
6689
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|
2280 err = dsl_dataset_snap_remove(hds, ds->ds_snapname, tx); |
789 | 2281 ASSERT3U(err, ==, 0); |
2199 | 2282 mutex_enter(&ds->ds_lock); |
2283 (void) strcpy(ds->ds_snapname, newsnapname); | |
2284 mutex_exit(&ds->ds_lock); | |
2285 err = zap_add(mos, hds->ds_phys->ds_snapnames_zapobj, | |
2286 ds->ds_snapname, 8, 1, &ds->ds_object, tx); | |
789 | 2287 ASSERT3U(err, ==, 0); |
2288 | |
12296
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6675946 'zpool status' should show the progress of resilvering for individual disk.
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2289 spa_history_log_internal(LOG_DS_RENAME, dd->dd_pool->dp_spa, tx, |
7cf402a7f374
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2290 "dataset = %llu", ds->ds_object); |
6689
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2291 dsl_dataset_rele(hds, FTAG); |
789 | 2292 } |
2293 | |
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|
2294 struct renamesnaparg { |
4007 | 2295 dsl_sync_task_group_t *dstg; |
2296 char failed[MAXPATHLEN]; | |
2297 char *oldsnap; | |
2298 char *newsnap; | |
2299 }; | |
2300 | |
2301 static int | |
11209
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changeset
|
2302 dsl_snapshot_rename_one(const char *name, void *arg) |
4007 | 2303 { |
5326
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|
2304 struct renamesnaparg *ra = arg; |
4007 | 2305 dsl_dataset_t *ds = NULL; |
11209
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|
2306 char *snapname; |
4007 | 2307 int err; |
2308 | |
11209
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|
2309 snapname = kmem_asprintf("%s@%s", name, ra->oldsnap); |
462283cb4096
6905188 panic: kernel heap corruption when doing "zfs rename -r"
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changeset
|
2310 (void) strlcpy(ra->failed, snapname, sizeof (ra->failed)); |
4543 | 2311 |
2312 /* | |
2313 * For recursive snapshot renames the parent won't be changing | |
2314 * so we just pass name for both the to/from argument. | |
2315 */ | |
11209
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Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
11022
diff
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|
2316 err = zfs_secpolicy_rename_perms(snapname, snapname, CRED()); |
462283cb4096
6905188 panic: kernel heap corruption when doing "zfs rename -r"
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|
2317 if (err != 0) { |
462283cb4096
6905188 panic: kernel heap corruption when doing "zfs rename -r"
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|
2318 strfree(snapname); |
462283cb4096
6905188 panic: kernel heap corruption when doing "zfs rename -r"
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|
2319 return (err == ENOENT ? 0 : err); |
4543 | 2320 } |
2321 | |
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|
2322 #ifdef _KERNEL |
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|
2323 /* |
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|
2324 * For all filesystems undergoing rename, we'll need to unmount it. |
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|
2325 */ |
11209
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|
2326 (void) zfs_unmount_snap(snapname, NULL); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2327 #endif |
11209
462283cb4096
6905188 panic: kernel heap corruption when doing "zfs rename -r"
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
11022
diff
changeset
|
2328 err = dsl_dataset_hold(snapname, ra->dstg, &ds); |
11609
3b5da7ebb54d
6920880 assertion failure in dbuf_write_ready()
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
11546
diff
changeset
|
2329 strfree(snapname); |
3b5da7ebb54d
6920880 assertion failure in dbuf_write_ready()
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
11546
diff
changeset
|
2330 if (err != 0) |
11209
462283cb4096
6905188 panic: kernel heap corruption when doing "zfs rename -r"
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
11022
diff
changeset
|
2331 return (err == ENOENT ? 0 : err); |
4007 | 2332 |
2333 dsl_sync_task_create(ra->dstg, dsl_dataset_snapshot_rename_check, | |
2334 dsl_dataset_snapshot_rename_sync, ds, ra->newsnap, 0); | |
2335 | |
2336 return (0); | |
2337 } | |
2338 | |
2339 static int | |
2340 dsl_recursive_rename(char *oldname, const char *newname) | |
2341 { | |
2342 int err; | |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2343 struct renamesnaparg *ra; |
4007 | 2344 dsl_sync_task_t *dst; |
2345 spa_t *spa; | |
2346 char *cp, *fsname = spa_strdup(oldname); | |
11209
462283cb4096
6905188 panic: kernel heap corruption when doing "zfs rename -r"
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
11022
diff
changeset
|
2347 int len = strlen(oldname) + 1; |
4007 | 2348 |
2349 /* truncate the snapshot name to get the fsname */ | |
2350 cp = strchr(fsname, '@'); | |
2351 *cp = '\0'; | |
2352 | |
4603
c7840c367d00
6494569 zfs recv -d pool/<doesn't exist> core dumps for top-level filesystem backups
ahrens
parents:
4577
diff
changeset
|
2353 err = spa_open(fsname, &spa, FTAG); |
4007 | 2354 if (err) { |
11209
462283cb4096
6905188 panic: kernel heap corruption when doing "zfs rename -r"
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
11022
diff
changeset
|
2355 kmem_free(fsname, len); |
4007 | 2356 return (err); |
2357 } | |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2358 ra = kmem_alloc(sizeof (struct renamesnaparg), KM_SLEEP); |
4007 | 2359 ra->dstg = dsl_sync_task_group_create(spa_get_dsl(spa)); |
2360 | |
2361 ra->oldsnap = strchr(oldname, '@') + 1; | |
2362 ra->newsnap = strchr(newname, '@') + 1; | |
2363 *ra->failed = '\0'; | |
2364 | |
2365 err = dmu_objset_find(fsname, dsl_snapshot_rename_one, ra, | |
2366 DS_FIND_CHILDREN); | |
11209
462283cb4096
6905188 panic: kernel heap corruption when doing "zfs rename -r"
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
11022
diff
changeset
|
2367 kmem_free(fsname, len); |
4007 | 2368 |
2369 if (err == 0) { | |
2370 err = dsl_sync_task_group_wait(ra->dstg); | |
2371 } | |
2372 | |
2373 for (dst = list_head(&ra->dstg->dstg_tasks); dst; | |
2374 dst = list_next(&ra->dstg->dstg_tasks, dst)) { | |
2375 dsl_dataset_t *ds = dst->dst_arg1; | |
2376 if (dst->dst_err) { | |
2377 dsl_dir_name(ds->ds_dir, ra->failed); | |
11209
462283cb4096
6905188 panic: kernel heap corruption when doing "zfs rename -r"
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
11022
diff
changeset
|
2378 (void) strlcat(ra->failed, "@", sizeof (ra->failed)); |
462283cb4096
6905188 panic: kernel heap corruption when doing "zfs rename -r"
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
11022
diff
changeset
|
2379 (void) strlcat(ra->failed, ra->newsnap, |
462283cb4096
6905188 panic: kernel heap corruption when doing "zfs rename -r"
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
11022
diff
changeset
|
2380 sizeof (ra->failed)); |
4007 | 2381 } |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2382 dsl_dataset_rele(ds, ra->dstg); |
4007 | 2383 } |
2384 | |
4543 | 2385 if (err) |
11209
462283cb4096
6905188 panic: kernel heap corruption when doing "zfs rename -r"
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
11022
diff
changeset
|
2386 (void) strlcpy(oldname, ra->failed, sizeof (ra->failed)); |
4007 | 2387 |
2388 dsl_sync_task_group_destroy(ra->dstg); | |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2389 kmem_free(ra, sizeof (struct renamesnaparg)); |
4007 | 2390 spa_close(spa, FTAG); |
2391 return (err); | |
2392 } | |
2393 | |
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
|
2394 static int |
11209
462283cb4096
6905188 panic: kernel heap corruption when doing "zfs rename -r"
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
11022
diff
changeset
|
2395 dsl_valid_rename(const char *oldname, void *arg) |
4569
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2396 { |
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2397 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
|
2398 |
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2399 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
|
2400 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
|
2401 |
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2402 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
|
2403 } |
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2404 |
789 | 2405 #pragma weak dmu_objset_rename = dsl_dataset_rename |
2406 int | |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2407 dsl_dataset_rename(char *oldname, const char *newname, boolean_t recursive) |
789 | 2408 { |
2409 dsl_dir_t *dd; | |
2199 | 2410 dsl_dataset_t *ds; |
789 | 2411 const char *tail; |
2412 int err; | |
2413 | |
2199 | 2414 err = dsl_dir_open(oldname, FTAG, &dd, &tail); |
1544 | 2415 if (err) |
2416 return (err); | |
11701
6f890435df16
6915532 snapshot related activity causes akd to hang
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11609
diff
changeset
|
2417 |
789 | 2418 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
|
2419 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
|
2420 |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2421 /* 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
|
2422 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
|
2423 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
|
2424 &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
|
2425 |
11823
c756cd80d532
6930022 zfs rename of non-shapshot is slower than necessary
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
11701
diff
changeset
|
2426 if (err == 0) |
4569
e80d40447f27
6355623 zfs rename to a valid dataset name, but its snapshot name becomes too long, panics the system
mmusante
parents:
4543
diff
changeset
|
2427 err = dsl_dir_rename(dd, newname); |
789 | 2428 dsl_dir_close(dd, FTAG); |
2429 return (err); | |
2430 } | |
11701
6f890435df16
6915532 snapshot related activity causes akd to hang
Sanjeev Bagewadi <Sanjeev.Bagewadi@Sun.COM>
parents:
11609
diff
changeset
|
2431 |
789 | 2432 if (tail[0] != '@') { |
10588
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2433 /* the name ended in a nonexistent component */ |
789 | 2434 dsl_dir_close(dd, FTAG); |
2435 return (ENOENT); | |
2436 } | |
2437 | |
2199 | 2438 dsl_dir_close(dd, FTAG); |
2439 | |
2440 /* new name must be snapshot in same filesystem */ | |
2441 tail = strchr(newname, '@'); | |
2442 if (tail == NULL) | |
2443 return (EINVAL); | |
2444 tail++; | |
2445 if (strncmp(oldname, newname, tail - newname) != 0) | |
2446 return (EXDEV); | |
789 | 2447 |
4007 | 2448 if (recursive) { |
2449 err = dsl_recursive_rename(oldname, newname); | |
2450 } else { | |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2451 err = dsl_dataset_hold(oldname, FTAG, &ds); |
4007 | 2452 if (err) |
2453 return (err); | |
2199 | 2454 |
4007 | 2455 err = dsl_sync_task_do(ds->ds_dir->dd_pool, |
2456 dsl_dataset_snapshot_rename_check, | |
2457 dsl_dataset_snapshot_rename_sync, ds, (char *)tail, 1); | |
2199 | 2458 |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2459 dsl_dataset_rele(ds, FTAG); |
4007 | 2460 } |
2199 | 2461 |
789 | 2462 return (err); |
2463 } | |
2082 | 2464 |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2465 struct promotenode { |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2466 list_node_t link; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2467 dsl_dataset_t *ds; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2468 }; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2469 |
2199 | 2470 struct promotearg { |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2471 list_t shared_snaps, origin_snaps, clone_snaps; |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
2472 dsl_dataset_t *origin_origin; |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2473 uint64_t used, comp, uncomp, unique, cloneusedsnap, originusedsnap; |
10588
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2474 char *err_ds; |
2199 | 2475 }; |
2476 | |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2477 static int snaplist_space(list_t *l, uint64_t mintxg, uint64_t *spacep); |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
2478 static boolean_t snaplist_unstable(list_t *l); |
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
2479 |
2082 | 2480 static int |
2199 | 2481 dsl_dataset_promote_check(void *arg1, void *arg2, dmu_tx_t *tx) |
2082 | 2482 { |
2199 | 2483 dsl_dataset_t *hds = arg1; |
2484 struct promotearg *pa = arg2; | |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2485 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
|
2486 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
|
2487 int err; |
12470
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
2488 uint64_t unused; |
2199 | 2489 |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2490 /* 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
|
2491 if (!dsl_dir_is_clone(hds->ds_dir)) |
2082 | 2492 return (EINVAL); |
2493 | |
2199 | 2494 /* Since this is so expensive, don't do the preliminary check */ |
2495 if (!dmu_tx_is_syncing(tx)) | |
2496 return (0); | |
2497 | |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2498 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
|
2499 return (EXDEV); |
2082 | 2500 |
5367 | 2501 /* 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
|
2502 snap = list_tail(&pa->clone_snaps); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2503 ASSERT3U(snap->ds->ds_phys->ds_prev_snap_obj, ==, origin_ds->ds_object); |
12470
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
2504 dsl_deadlist_space_range(&snap->ds->ds_deadlist, |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
2505 origin_ds->ds_phys->ds_prev_snap_txg, UINT64_MAX, |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
2506 &pa->unique, &unused, &unused); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2507 |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2508 /* |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2509 * 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
|
2510 * |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2511 * 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
|
2512 * to used for each snapshot: |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2513 * (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
|
2514 * So each snapshot gave birth to: |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2515 * (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
|
2516 * 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
|
2517 * (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
|
2518 * Which simplifies to: |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2519 * 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
|
2520 * 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
|
2521 * 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
|
2522 */ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2523 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
|
2524 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
|
2525 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
|
2526 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
|
2527 snap = list_next(&pa->shared_snaps, snap)) { |
2082 | 2528 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
|
2529 dsl_dataset_t *ds = snap->ds; |
2082 | 2530 |
2531 /* 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
|
2532 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
|
2533 err = dsl_dataset_snap_lookup(hds, ds->ds_snapname, &val); |
10588
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2534 if (err == 0) { |
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2535 err = EEXIST; |
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2536 goto out; |
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2537 } |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2538 if (err != ENOENT) |
10588
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2539 goto out; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2540 |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2541 /* 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
|
2542 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
|
2543 continue; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2544 |
12470
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
2545 dsl_deadlist_space(&ds->ds_deadlist, |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
2546 &dlused, &dlcomp, &dluncomp); |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2547 pa->used += dlused; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2548 pa->comp += dlcomp; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2549 pa->uncomp += dluncomp; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2550 } |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2551 |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2552 /* |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2553 * 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
|
2554 * 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
|
2555 */ |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2556 if (pa->origin_origin) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2557 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
|
2558 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
|
2559 pa->uncomp -= pa->origin_origin->ds_phys->ds_uncompressed_bytes; |
2082 | 2560 } |
2561 | |
2562 /* 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
|
2563 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
|
2564 pa->used); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2565 if (err) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2566 return (err); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2567 |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2568 /* |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2569 * 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
|
2570 * 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
|
2571 * 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
|
2572 * 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
|
2573 */ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2574 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
|
2575 uint64_t space; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2576 |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2577 /* |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2578 * Note, typically this will not be a clone of a clone, |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
2579 * so dd_origin_txg will be < TXG_INITIAL, so |
12470
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
2580 * these snaplist_space() -> dsl_deadlist_space_range() |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2581 * 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
|
2582 * iterate over all bps. |
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 snap = list_head(&pa->origin_snaps); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2585 err = snaplist_space(&pa->shared_snaps, |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
2586 snap->ds->ds_dir->dd_origin_txg, &pa->cloneusedsnap); |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2587 if (err) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2588 return (err); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2589 |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2590 err = snaplist_space(&pa->clone_snaps, |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
2591 snap->ds->ds_dir->dd_origin_txg, &space); |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2592 if (err) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2593 return (err); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2594 pa->cloneusedsnap += space; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2595 } |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2596 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
|
2597 err = snaplist_space(&pa->origin_snaps, |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2598 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
|
2599 if (err) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2600 return (err); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2601 } |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2602 |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2603 return (0); |
10588
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2604 out: |
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2605 pa->err_ds = snap->ds->ds_snapname; |
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2606 return (err); |
2199 | 2607 } |
2082 | 2608 |
2199 | 2609 static void |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
2610 dsl_dataset_promote_sync(void *arg1, void *arg2, dmu_tx_t *tx) |
2199 | 2611 { |
2612 dsl_dataset_t *hds = arg1; | |
2613 struct promotearg *pa = arg2; | |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2614 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
|
2615 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
|
2616 dsl_dataset_t *origin_head; |
2199 | 2617 dsl_dir_t *dd = hds->ds_dir; |
2618 dsl_pool_t *dp = hds->ds_dir->dd_pool; | |
5367 | 2619 dsl_dir_t *odd = NULL; |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2620 uint64_t oldnext_obj; |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2621 int64_t delta; |
2199 | 2622 |
2623 ASSERT(0 == (hds->ds_phys->ds_flags & DS_FLAG_NOPROMOTE)); | |
2624 | |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2625 snap = list_head(&pa->origin_snaps); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2626 origin_head = snap->ds; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2627 |
2417 | 2628 /* |
5367 | 2629 * We need to explicitly open odd, since origin_ds's dd will be |
2417 | 2630 * changing. |
2631 */ | |
5367 | 2632 VERIFY(0 == dsl_dir_open_obj(dp, origin_ds->ds_dir->dd_object, |
2633 NULL, FTAG, &odd)); | |
2082 | 2634 |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2635 /* change origin's next snap */ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2636 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
|
2637 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
|
2638 snap = list_tail(&pa->clone_snaps); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2639 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
|
2640 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
|
2641 |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2642 /* change the origin's next clone */ |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2643 if (origin_ds->ds_phys->ds_next_clones_obj) { |
10801
e0bf032e8673
6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10799
diff
changeset
|
2644 remove_from_next_clones(origin_ds, snap->ds->ds_object, tx); |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2645 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
|
2646 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
|
2647 oldnext_obj, tx)); |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2648 } |
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2649 |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2650 /* change origin */ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2651 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
|
2652 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
|
2653 dd->dd_phys->dd_origin_obj = odd->dd_phys->dd_origin_obj; |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
2654 dd->dd_origin_txg = origin_head->ds_dir->dd_origin_txg; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2655 dmu_buf_will_dirty(odd->dd_dbuf, tx); |
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parents:
6643
diff
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|
2656 odd->dd_phys->dd_origin_obj = origin_ds->ds_object; |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
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diff
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|
2657 origin_head->ds_dir->dd_origin_txg = |
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
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diff
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|
2658 origin_ds->ds_phys->ds_creation_txg; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
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parents:
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diff
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|
2659 |
12470
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|
2660 /* change dd_clone entries */ |
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|
2661 if (spa_version(dp->dp_spa) >= SPA_VERSION_DIR_CLONES) { |
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|
2662 VERIFY3U(0, ==, zap_remove_int(dp->dp_meta_objset, |
54258108784b
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|
2663 odd->dd_phys->dd_clones, hds->ds_object, tx)); |
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Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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diff
changeset
|
2664 VERIFY3U(0, ==, zap_add_int(dp->dp_meta_objset, |
54258108784b
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|
2665 pa->origin_origin->ds_dir->dd_phys->dd_clones, |
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diff
changeset
|
2666 hds->ds_object, tx)); |
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|
2667 |
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|
2668 VERIFY3U(0, ==, zap_remove_int(dp->dp_meta_objset, |
54258108784b
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|
2669 pa->origin_origin->ds_dir->dd_phys->dd_clones, |
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|
2670 origin_head->ds_object, tx)); |
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Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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diff
changeset
|
2671 if (dd->dd_phys->dd_clones == 0) { |
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diff
changeset
|
2672 dd->dd_phys->dd_clones = zap_create(dp->dp_meta_objset, |
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Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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diff
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|
2673 DMU_OT_DSL_CLONES, DMU_OT_NONE, 0, tx); |
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diff
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|
2674 } |
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diff
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|
2675 VERIFY3U(0, ==, zap_add_int(dp->dp_meta_objset, |
54258108784b
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|
2676 dd->dd_phys->dd_clones, origin_head->ds_object, tx)); |
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|
2677 |
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Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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diff
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|
2678 } |
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diff
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|
2679 |
2082 | 2680 /* move snapshots to this dir */ |
7390
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diff
changeset
|
2681 for (snap = list_head(&pa->shared_snaps); snap; |
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Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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diff
changeset
|
2682 snap = list_next(&pa->shared_snaps, snap)) { |
6689
47572a2f5e73
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diff
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|
2683 dsl_dataset_t *ds = snap->ds; |
2082 | 2684 |
7237
f47d41541b14
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ek110237
parents:
7077
diff
changeset
|
2685 /* unregister props as dsl_dir is changing */ |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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10272
diff
changeset
|
2686 if (ds->ds_objset) { |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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diff
changeset
|
2687 dmu_objset_evict(ds->ds_objset); |
a0d52501437c
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diff
changeset
|
2688 ds->ds_objset = NULL; |
7237
f47d41541b14
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diff
changeset
|
2689 } |
2082 | 2690 /* move snap name entry */ |
7390
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diff
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|
2691 VERIFY(0 == dsl_dataset_get_snapname(ds)); |
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diff
changeset
|
2692 VERIFY(0 == dsl_dataset_snap_remove(origin_head, |
6689
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diff
changeset
|
2693 ds->ds_snapname, tx)); |
2199 | 2694 VERIFY(0 == zap_add(dp->dp_meta_objset, |
2082 | 2695 hds->ds_phys->ds_snapnames_zapobj, ds->ds_snapname, |
2696 8, 1, &ds->ds_object, tx)); | |
12470
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diff
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|
2697 |
2082 | 2698 /* change containing dsl_dir */ |
2699 dmu_buf_will_dirty(ds->ds_dbuf, tx); | |
5367 | 2700 ASSERT3U(ds->ds_phys->ds_dir_obj, ==, odd->dd_object); |
2082 | 2701 ds->ds_phys->ds_dir_obj = dd->dd_object; |
5367 | 2702 ASSERT3P(ds->ds_dir, ==, odd); |
2082 | 2703 dsl_dir_close(ds->ds_dir, ds); |
2199 | 2704 VERIFY(0 == dsl_dir_open_obj(dp, dd->dd_object, |
2082 | 2705 NULL, ds, &ds->ds_dir)); |
2706 | |
12470
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diff
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|
2707 /* move any clone references */ |
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diff
changeset
|
2708 if (ds->ds_phys->ds_next_clones_obj && |
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diff
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|
2709 spa_version(dp->dp_spa) >= SPA_VERSION_DIR_CLONES) { |
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diff
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|
2710 zap_cursor_t zc; |
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diff
changeset
|
2711 zap_attribute_t za; |
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diff
changeset
|
2712 |
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diff
changeset
|
2713 for (zap_cursor_init(&zc, dp->dp_meta_objset, |
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diff
changeset
|
2714 ds->ds_phys->ds_next_clones_obj); |
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Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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diff
changeset
|
2715 zap_cursor_retrieve(&zc, &za) == 0; |
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diff
changeset
|
2716 zap_cursor_advance(&zc)) { |
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diff
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|
2717 dsl_dataset_t *cnds; |
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diff
changeset
|
2718 uint64_t o; |
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diff
changeset
|
2719 |
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diff
changeset
|
2720 if (za.za_first_integer == oldnext_obj) { |
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parents:
12450
diff
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|
2721 /* |
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parents:
12450
diff
changeset
|
2722 * We've already moved the |
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parents:
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diff
changeset
|
2723 * origin's reference. |
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diff
changeset
|
2724 */ |
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diff
changeset
|
2725 continue; |
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diff
changeset
|
2726 } |
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diff
changeset
|
2727 |
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diff
changeset
|
2728 VERIFY3U(0, ==, dsl_dataset_hold_obj(dp, |
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diff
changeset
|
2729 za.za_first_integer, FTAG, &cnds)); |
54258108784b
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Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
2730 o = cnds->ds_dir->dd_phys->dd_head_dataset_obj; |
54258108784b
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12450
diff
changeset
|
2731 |
54258108784b
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parents:
12450
diff
changeset
|
2732 VERIFY3U(zap_remove_int(dp->dp_meta_objset, |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
2733 odd->dd_phys->dd_clones, o, tx), ==, 0); |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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diff
changeset
|
2734 VERIFY3U(zap_add_int(dp->dp_meta_objset, |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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12450
diff
changeset
|
2735 dd->dd_phys->dd_clones, o, tx), ==, 0); |
54258108784b
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Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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diff
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|
2736 dsl_dataset_rele(cnds, FTAG); |
54258108784b
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diff
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|
2737 } |
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diff
changeset
|
2738 zap_cursor_fini(&zc); |
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diff
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|
2739 } |
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diff
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|
2740 |
2082 | 2741 ASSERT3U(dsl_prop_numcb(ds), ==, 0); |
7390
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Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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diff
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|
2742 } |
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diff
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|
2743 |
6d408f0a5fbd
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7385
diff
changeset
|
2744 /* |
6d408f0a5fbd
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7385
diff
changeset
|
2745 * Change space accounting. |
6d408f0a5fbd
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diff
changeset
|
2746 * Note, pa->*usedsnap and dd_used_breakdown[SNAP] will either |
6d408f0a5fbd
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diff
changeset
|
2747 * both be valid, or both be 0 (resulting in delta == 0). This |
6d408f0a5fbd
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changeset
|
2748 * is true for each of {clone,origin} independently. |
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diff
changeset
|
2749 */ |
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7385
diff
changeset
|
2750 |
6d408f0a5fbd
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parents:
7385
diff
changeset
|
2751 delta = pa->cloneusedsnap - |
6d408f0a5fbd
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diff
changeset
|
2752 dd->dd_phys->dd_used_breakdown[DD_USED_SNAP]; |
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diff
changeset
|
2753 ASSERT3S(delta, >=, 0); |
6d408f0a5fbd
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7385
diff
changeset
|
2754 ASSERT3U(pa->used, >=, delta); |
6d408f0a5fbd
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7385
diff
changeset
|
2755 dsl_dir_diduse_space(dd, DD_USED_SNAP, delta, 0, 0, tx); |
6d408f0a5fbd
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Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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7385
diff
changeset
|
2756 dsl_dir_diduse_space(dd, DD_USED_HEAD, |
6d408f0a5fbd
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Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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7385
diff
changeset
|
2757 pa->used - delta, pa->comp, pa->uncomp, tx); |
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diff
changeset
|
2758 |
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parents:
7385
diff
changeset
|
2759 delta = pa->originusedsnap - |
6d408f0a5fbd
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diff
changeset
|
2760 odd->dd_phys->dd_used_breakdown[DD_USED_SNAP]; |
6d408f0a5fbd
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7385
diff
changeset
|
2761 ASSERT3S(delta, <=, 0); |
6d408f0a5fbd
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7385
diff
changeset
|
2762 ASSERT3U(pa->used, >=, -delta); |
6d408f0a5fbd
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Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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7385
diff
changeset
|
2763 dsl_dir_diduse_space(odd, DD_USED_SNAP, delta, 0, 0, tx); |
6d408f0a5fbd
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7385
diff
changeset
|
2764 dsl_dir_diduse_space(odd, DD_USED_HEAD, |
6d408f0a5fbd
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Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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7385
diff
changeset
|
2765 -pa->used - delta, -pa->comp, -pa->uncomp, tx); |
6d408f0a5fbd
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Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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diff
changeset
|
2766 |
5367 | 2767 origin_ds->ds_phys->ds_unique_bytes = pa->unique; |
2082 | 2768 |
4543 | 2769 /* log history record */ |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
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12295
diff
changeset
|
2770 spa_history_log_internal(LOG_DS_PROMOTE, dd->dd_pool->dp_spa, tx, |
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
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12295
diff
changeset
|
2771 "dataset = %llu", hds->ds_object); |
4543 | 2772 |
5367 | 2773 dsl_dir_close(odd, FTAG); |
2082 | 2774 } |
2775 | |
7390
6d408f0a5fbd
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7385
diff
changeset
|
2776 static char *snaplist_tag = "snaplist"; |
6d408f0a5fbd
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7385
diff
changeset
|
2777 /* |
6d408f0a5fbd
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7385
diff
changeset
|
2778 * Make a list of dsl_dataset_t's for the snapshots between first_obj |
6d408f0a5fbd
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7385
diff
changeset
|
2779 * (exclusive) and last_obj (inclusive). The list will be in reverse |
6d408f0a5fbd
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7385
diff
changeset
|
2780 * order (last_obj will be the list_head()). If first_obj == 0, do all |
6d408f0a5fbd
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changeset
|
2781 * 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
|
2782 */ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2783 static int |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2784 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
|
2785 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
|
2786 { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2787 uint64_t obj = last_obj; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2788 |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2789 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
|
2790 |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2791 list_create(l, sizeof (struct promotenode), |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2792 offsetof(struct promotenode, link)); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2793 |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2794 while (obj != first_obj) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2795 dsl_dataset_t *ds; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2796 struct promotenode *snap; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2797 int err; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2798 |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2799 if (own) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2800 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
|
2801 0, snaplist_tag, &ds); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2802 if (err == 0) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2803 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
|
2804 } else { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2805 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
|
2806 } |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2807 if (err == ENOENT) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2808 /* lost race with snapshot destroy */ |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2809 struct promotenode *last = list_tail(l); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2810 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
|
2811 obj = last->ds->ds_phys->ds_prev_snap_obj; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2812 continue; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2813 } else if (err) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2814 return (err); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2815 } |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2816 |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2817 if (first_obj == 0) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2818 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
|
2819 |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2820 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
|
2821 snap->ds = ds; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2822 list_insert_tail(l, snap); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2823 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
|
2824 } |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2825 |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2826 return (0); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2827 } |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2828 |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2829 static int |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2830 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
|
2831 { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2832 struct promotenode *snap; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2833 |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2834 *spacep = 0; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2835 for (snap = list_head(l); snap; snap = list_next(l, snap)) { |
12470
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
2836 uint64_t used, comp, uncomp; |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
2837 dsl_deadlist_space_range(&snap->ds->ds_deadlist, |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
2838 mintxg, UINT64_MAX, &used, &comp, &uncomp); |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2839 *spacep += used; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2840 } |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2841 return (0); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2842 } |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2843 |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2844 static void |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2845 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
|
2846 { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2847 struct promotenode *snap; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2848 |
8779
f164e0e90508
6784924 panic while ludelete (zfs destroy)
Mark J Musante <Mark.Musante@Sun.COM>
parents:
8746
diff
changeset
|
2849 if (!l || !list_link_active(&l->list_head)) |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2850 return; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2851 |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2852 while ((snap = list_tail(l)) != NULL) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2853 list_remove(l, snap); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2854 if (own) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2855 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
|
2856 else |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2857 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
|
2858 kmem_free(snap, sizeof (struct promotenode)); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2859 } |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2860 list_destroy(l); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2861 } |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2862 |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2863 /* |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2864 * Promote a clone. Nomenclature note: |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2865 * "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
|
2866 * "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
|
2867 * "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
|
2868 * (filesystem/volume) for the origin |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2869 * "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
|
2870 * 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
|
2871 */ |
2082 | 2872 int |
10588
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2873 dsl_dataset_promote(const char *name, char *conflsnap) |
2082 | 2874 { |
2875 dsl_dataset_t *ds; | |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2876 dsl_dir_t *dd; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2877 dsl_pool_t *dp; |
2082 | 2878 dmu_object_info_t doi; |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2879 struct promotearg pa = { 0 }; |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6992
diff
changeset
|
2880 struct promotenode *snap; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2881 int err; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2882 |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2883 err = dsl_dataset_hold(name, FTAG, &ds); |
2082 | 2884 if (err) |
2885 return (err); | |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2886 dd = ds->ds_dir; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2887 dp = dd->dd_pool; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2888 |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2889 err = dmu_object_info(dp->dp_meta_objset, |
2082 | 2890 ds->ds_phys->ds_snapnames_zapobj, &doi); |
2891 if (err) { | |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2892 dsl_dataset_rele(ds, FTAG); |
2082 | 2893 return (err); |
2894 } | |
2895 | |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2896 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
|
2897 dsl_dataset_rele(ds, FTAG); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2898 return (EINVAL); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2899 } |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2900 |
2082 | 2901 /* |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2902 * 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
|
2903 * 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
|
2904 * 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
|
2905 * namespace. |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2906 */ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2907 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
|
2908 |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2909 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
|
2910 &pa.shared_snaps); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2911 if (err != 0) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2912 goto out; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2913 |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2914 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
|
2915 if (err != 0) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2916 goto out; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2917 |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2918 snap = list_head(&pa.shared_snaps); |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2919 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
|
2920 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
|
2921 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
|
2922 if (err != 0) |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2923 goto out; |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2924 |
12470
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
2925 if (snap->ds->ds_dir->dd_phys->dd_origin_obj != 0) { |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
2926 err = dsl_dataset_hold_obj(dp, |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2927 snap->ds->ds_dir->dd_phys->dd_origin_obj, |
12470
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
2928 FTAG, &pa.origin_origin); |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2929 if (err != 0) |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2930 goto out; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2931 } |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2932 |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2933 out: |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2934 rw_exit(&dp->dp_config_rwlock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2935 |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2936 /* |
2082 | 2937 * Add in 128x the snapnames zapobj size, since we will be moving |
2938 * a bunch of snapnames to the promoted ds, and dirtying their | |
2939 * bonus buffers. | |
2940 */ | |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2941 if (err == 0) { |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2942 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
|
2943 dsl_dataset_promote_sync, ds, &pa, |
10922
e2081f502306
PSARC 2009/571 ZFS Deduplication Properties
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
10816
diff
changeset
|
2944 2 + 2 * doi.doi_physical_blocks_512); |
10588
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2945 if (err && pa.err_ds && conflsnap) |
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
10575
diff
changeset
|
2946 (void) strncpy(conflsnap, pa.err_ds, MAXNAMELEN); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2947 } |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2948 |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
2949 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
|
2950 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
|
2951 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
|
2952 if (pa.origin_origin) |
12470
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
2953 dsl_dataset_rele(pa.origin_origin, FTAG); |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
2954 dsl_dataset_rele(ds, FTAG); |
2082 | 2955 return (err); |
2956 } | |
3912 | 2957 |
5367 | 2958 struct cloneswaparg { |
2959 dsl_dataset_t *cds; /* clone dataset */ | |
2960 dsl_dataset_t *ohds; /* origin's head dataset */ | |
2961 boolean_t force; | |
5481
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2962 int64_t unused_refres_delta; /* change in unconsumed refreservation */ |
5367 | 2963 }; |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2964 |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2965 /* ARGSUSED */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2966 static int |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2967 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
|
2968 { |
5367 | 2969 struct cloneswaparg *csa = arg1; |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2970 |
5367 | 2971 /* they should both be heads */ |
2972 if (dsl_dataset_is_snapshot(csa->cds) || | |
2973 dsl_dataset_is_snapshot(csa->ohds)) | |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2974 return (EINVAL); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2975 |
5367 | 2976 /* the branch point should be just before them */ |
2977 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
|
2978 return (EINVAL); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2979 |
10272
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2980 /* cds should be the clone (unless they are unrelated) */ |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2981 if (csa->cds->ds_prev != NULL && |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2982 csa->cds->ds_prev != csa->cds->ds_dir->dd_pool->dp_origin_snap && |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2983 csa->ohds->ds_object != |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
2984 csa->cds->ds_prev->ds_phys->ds_next_snap_obj) |
5367 | 2985 return (EINVAL); |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2986 |
5367 | 2987 /* the clone should be a child of the origin */ |
2988 if (csa->cds->ds_dir->dd_parent != csa->ohds->ds_dir) | |
2989 return (EINVAL); | |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
2990 |
5367 | 2991 /* ohds shouldn't be modified unless 'force' */ |
2992 if (!csa->force && dsl_dataset_modified_since_lastsnap(csa->ohds)) | |
2993 return (ETXTBSY); | |
5481
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 /* adjust amount of any unconsumed refreservation */ |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2996 csa->unused_refres_delta = |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2997 (int64_t)MIN(csa->ohds->ds_reserved, |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2998 csa->ohds->ds_phys->ds_unique_bytes) - |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
2999 (int64_t)MIN(csa->ohds->ds_reserved, |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3000 csa->cds->ds_phys->ds_unique_bytes); |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3001 |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3002 if (csa->unused_refres_delta > 0 && |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3003 csa->unused_refres_delta > |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3004 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
|
3005 return (ENOSPC); |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3006 |
10799
395576ddfea9
6881321 zfs test rsend_012_pos panics when running daily.0807 archives
Chris Kirby <Chris.Kirby@sun.com>
parents:
10588
diff
changeset
|
3007 if (csa->ohds->ds_quota != 0 && |
395576ddfea9
6881321 zfs test rsend_012_pos panics when running daily.0807 archives
Chris Kirby <Chris.Kirby@sun.com>
parents:
10588
diff
changeset
|
3008 csa->cds->ds_phys->ds_unique_bytes > csa->ohds->ds_quota) |
395576ddfea9
6881321 zfs test rsend_012_pos panics when running daily.0807 archives
Chris Kirby <Chris.Kirby@sun.com>
parents:
10588
diff
changeset
|
3009 return (EDQUOT); |
395576ddfea9
6881321 zfs test rsend_012_pos panics when running daily.0807 archives
Chris Kirby <Chris.Kirby@sun.com>
parents:
10588
diff
changeset
|
3010 |
5367 | 3011 return (0); |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3012 } |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3013 |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3014 /* ARGSUSED */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3015 static void |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3016 dsl_dataset_clone_swap_sync(void *arg1, void *arg2, dmu_tx_t *tx) |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3017 { |
5367 | 3018 struct cloneswaparg *csa = arg1; |
3019 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
|
3020 |
5481
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3021 ASSERT(csa->cds->ds_reserved == 0); |
10799
395576ddfea9
6881321 zfs test rsend_012_pos panics when running daily.0807 archives
Chris Kirby <Chris.Kirby@sun.com>
parents:
10588
diff
changeset
|
3022 ASSERT(csa->ohds->ds_quota == 0 || |
395576ddfea9
6881321 zfs test rsend_012_pos panics when running daily.0807 archives
Chris Kirby <Chris.Kirby@sun.com>
parents:
10588
diff
changeset
|
3023 csa->cds->ds_phys->ds_unique_bytes <= csa->ohds->ds_quota); |
5481
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3024 |
5367 | 3025 dmu_buf_will_dirty(csa->cds->ds_dbuf, tx); |
3026 dmu_buf_will_dirty(csa->ohds->ds_dbuf, tx); | |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3027 |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3028 if (csa->cds->ds_objset != NULL) { |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3029 dmu_objset_evict(csa->cds->ds_objset); |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3030 csa->cds->ds_objset = NULL; |
5367 | 3031 } |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3032 |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3033 if (csa->ohds->ds_objset != NULL) { |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3034 dmu_objset_evict(csa->ohds->ds_objset); |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3035 csa->ohds->ds_objset = NULL; |
5367 | 3036 } |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3037 |
10272
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
3038 /* |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
3039 * Reset origin's unique bytes, if it exists. |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
3040 */ |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
3041 if (csa->cds->ds_prev) { |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
3042 dsl_dataset_t *origin = csa->cds->ds_prev; |
12470
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
3043 uint64_t comp, uncomp; |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
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diff
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|
3044 |
10272
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
3045 dmu_buf_will_dirty(origin->ds_dbuf, tx); |
12470
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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12450
diff
changeset
|
3046 dsl_deadlist_space_range(&csa->cds->ds_deadlist, |
10272
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
3047 origin->ds_phys->ds_prev_snap_txg, UINT64_MAX, |
12470
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
3048 &origin->ds_phys->ds_unique_bytes, &comp, &uncomp); |
10272
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
3049 } |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3050 |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3051 /* swap blkptrs */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3052 { |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3053 blkptr_t tmp; |
5367 | 3054 tmp = csa->ohds->ds_phys->ds_bp; |
3055 csa->ohds->ds_phys->ds_bp = csa->cds->ds_phys->ds_bp; | |
3056 csa->cds->ds_phys->ds_bp = tmp; | |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3057 } |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3058 |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3059 /* set dd_*_bytes */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3060 { |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3061 int64_t dused, dcomp, duncomp; |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3062 uint64_t cdl_used, cdl_comp, cdl_uncomp; |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3063 uint64_t odl_used, odl_comp, odl_uncomp; |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3064 |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
3065 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
|
3066 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
|
3067 |
12470
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
3068 dsl_deadlist_space(&csa->cds->ds_deadlist, |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
3069 &cdl_used, &cdl_comp, &cdl_uncomp); |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
3070 dsl_deadlist_space(&csa->ohds->ds_deadlist, |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
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parents:
12450
diff
changeset
|
3071 &odl_used, &odl_comp, &odl_uncomp); |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
3072 |
5367 | 3073 dused = csa->cds->ds_phys->ds_used_bytes + cdl_used - |
3074 (csa->ohds->ds_phys->ds_used_bytes + odl_used); | |
3075 dcomp = csa->cds->ds_phys->ds_compressed_bytes + cdl_comp - | |
3076 (csa->ohds->ds_phys->ds_compressed_bytes + odl_comp); | |
3077 duncomp = csa->cds->ds_phys->ds_uncompressed_bytes + | |
3078 cdl_uncomp - | |
3079 (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
|
3080 |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
3081 dsl_dir_diduse_space(csa->ohds->ds_dir, DD_USED_HEAD, |
5367 | 3082 dused, dcomp, duncomp, tx); |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
3083 dsl_dir_diduse_space(csa->cds->ds_dir, DD_USED_HEAD, |
5367 | 3084 -dused, -dcomp, -duncomp, tx); |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
3085 |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
3086 /* |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
3087 * 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
|
3088 * 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
|
3089 * 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
|
3090 * changing that affects the snapused). |
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
3091 */ |
12470
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
3092 dsl_deadlist_space_range(&csa->cds->ds_deadlist, |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
3093 csa->ohds->ds_dir->dd_origin_txg, UINT64_MAX, |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
3094 &cdl_used, &cdl_comp, &cdl_uncomp); |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
3095 dsl_deadlist_space_range(&csa->ohds->ds_deadlist, |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
3096 csa->ohds->ds_dir->dd_origin_txg, UINT64_MAX, |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
3097 &odl_used, &odl_comp, &odl_uncomp); |
7390
6d408f0a5fbd
PSARC/2008/518 ZFS space accounting enhancements
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7385
diff
changeset
|
3098 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
|
3099 DD_USED_HEAD, DD_USED_SNAP, tx); |
5367 | 3100 } |
3101 | |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3102 /* swap ds_*_bytes */ |
5367 | 3103 SWITCH64(csa->ohds->ds_phys->ds_used_bytes, |
3104 csa->cds->ds_phys->ds_used_bytes); | |
3105 SWITCH64(csa->ohds->ds_phys->ds_compressed_bytes, | |
3106 csa->cds->ds_phys->ds_compressed_bytes); | |
3107 SWITCH64(csa->ohds->ds_phys->ds_uncompressed_bytes, | |
3108 csa->cds->ds_phys->ds_uncompressed_bytes); | |
5481
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3109 SWITCH64(csa->ohds->ds_phys->ds_unique_bytes, |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3110 csa->cds->ds_phys->ds_unique_bytes); |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3111 |
1364fb7de75d
6619182 new non-sparse zvols should get refreservations
ck153898
parents:
5475
diff
changeset
|
3112 /* 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
|
3113 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
|
3114 csa->unused_refres_delta, 0, 0, tx); |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3115 |
12470
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
3116 /* |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
3117 * Swap deadlists. |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
3118 */ |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
3119 dsl_deadlist_close(&csa->cds->ds_deadlist); |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
3120 dsl_deadlist_close(&csa->ohds->ds_deadlist); |
5367 | 3121 SWITCH64(csa->ohds->ds_phys->ds_deadlist_obj, |
3122 csa->cds->ds_phys->ds_deadlist_obj); | |
12470
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
3123 dsl_deadlist_open(&csa->cds->ds_deadlist, dp->dp_meta_objset, |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
3124 csa->cds->ds_phys->ds_deadlist_obj); |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
3125 dsl_deadlist_open(&csa->ohds->ds_deadlist, dp->dp_meta_objset, |
54258108784b
6948890 snapshot deletion can induce pathologically long spa_sync() times
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
12450
diff
changeset
|
3126 csa->ohds->ds_phys->ds_deadlist_obj); |
7837
001de5627df3
6333409 traversal code should be able to issue multiple reads in parallel
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7754
diff
changeset
|
3127 |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3128 dsl_scan_ds_clone_swapped(csa->ohds, csa->cds, tx); |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3129 } |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3130 |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3131 /* |
10272
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
3132 * Swap 'clone' with its origin head datasets. Used at the end of "zfs |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
3133 * recv" into an existing fs to swizzle the file system to the new |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
3134 * version, and by "zfs rollback". Can also be used to swap two |
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
3135 * independent head datasets if neither has any snapshots. |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3136 */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3137 int |
5367 | 3138 dsl_dataset_clone_swap(dsl_dataset_t *clone, dsl_dataset_t *origin_head, |
3139 boolean_t force) | |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3140 { |
5367 | 3141 struct cloneswaparg csa; |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3142 int error; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3143 |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3144 ASSERT(clone->ds_owner); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3145 ASSERT(origin_head->ds_owner); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3146 retry: |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3147 /* Need exclusive access for the swap */ |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3148 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
|
3149 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
|
3150 rw_exit(&clone->ds_rwlock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3151 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
|
3152 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
|
3153 rw_exit(&origin_head->ds_rwlock); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3154 goto retry; |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3155 } |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3156 } |
5367 | 3157 csa.cds = clone; |
3158 csa.ohds = origin_head; | |
3159 csa.force = force; | |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3160 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
|
3161 dsl_dataset_clone_swap_check, |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3162 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
|
3163 return (error); |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3164 } |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5094
diff
changeset
|
3165 |
3912 | 3166 /* |
3167 * Given a pool name and a dataset object number in that pool, | |
3168 * return the name of that dataset. | |
3169 */ | |
3170 int | |
3171 dsl_dsobj_to_dsname(char *pname, uint64_t obj, char *buf) | |
3172 { | |
3173 spa_t *spa; | |
3174 dsl_pool_t *dp; | |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3175 dsl_dataset_t *ds; |
3912 | 3176 int error; |
3177 | |
3178 if ((error = spa_open(pname, &spa, FTAG)) != 0) | |
3179 return (error); | |
3180 dp = spa_get_dsl(spa); | |
3181 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
|
3182 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
|
3183 dsl_dataset_name(ds, buf); |
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3184 dsl_dataset_rele(ds, FTAG); |
3912 | 3185 } |
3186 rw_exit(&dp->dp_config_rwlock); | |
3187 spa_close(spa, FTAG); | |
3188 | |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3189 return (error); |
3912 | 3190 } |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3191 |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3192 int |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3193 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
|
3194 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
|
3195 { |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3196 int error = 0; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3197 |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3198 ASSERT3S(asize, >, 0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3199 |
5831
48655d6b290b
6630761 In sub-filesystem, available space is less than refreservation space
ck153898
parents:
5712
diff
changeset
|
3200 /* |
48655d6b290b
6630761 In sub-filesystem, available space is less than refreservation space
ck153898
parents:
5712
diff
changeset
|
3201 * *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
|
3202 * unconsumed refreservation space. |
48655d6b290b
6630761 In sub-filesystem, available space is less than refreservation space
ck153898
parents:
5712
diff
changeset
|
3203 */ |
48655d6b290b
6630761 In sub-filesystem, available space is less than refreservation space
ck153898
parents:
5712
diff
changeset
|
3204 *ref_rsrv = 0; |
48655d6b290b
6630761 In sub-filesystem, available space is less than refreservation space
ck153898
parents:
5712
diff
changeset
|
3205 |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3206 mutex_enter(&ds->ds_lock); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3207 /* |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3208 * Make a space adjustment for reserved bytes. |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3209 */ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3210 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
|
3211 ASSERT3U(*used, >=, |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3212 ds->ds_reserved - ds->ds_phys->ds_unique_bytes); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3213 *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
|
3214 *ref_rsrv = |
48655d6b290b
6630761 In sub-filesystem, available space is less than refreservation space
ck153898
parents:
5712
diff
changeset
|
3215 asize - MIN(asize, parent_delta(ds, asize + inflight)); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3216 } |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3217 |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3218 if (!check_quota || ds->ds_quota == 0) { |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3219 mutex_exit(&ds->ds_lock); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3220 return (0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3221 } |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3222 /* |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3223 * 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
|
3224 * 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
|
3225 * 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
|
3226 * may free up space for us). |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3227 */ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3228 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
|
3229 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
|
3230 error = ERESTART; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3231 else |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3232 error = EDQUOT; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3233 } |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3234 mutex_exit(&ds->ds_lock); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3235 |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3236 return (error); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3237 } |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3238 |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3239 /* ARGSUSED */ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3240 static int |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3241 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
|
3242 { |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3243 dsl_dataset_t *ds = arg1; |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3244 dsl_prop_setarg_t *psa = arg2; |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3245 int err; |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3246 |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3247 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
|
3248 return (ENOTSUP); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3249 |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3250 if ((err = dsl_prop_predict_sync(ds->ds_dir, psa)) != 0) |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3251 return (err); |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3252 |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3253 if (psa->psa_effective_value == 0) |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3254 return (0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3255 |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3256 if (psa->psa_effective_value < ds->ds_phys->ds_used_bytes || |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3257 psa->psa_effective_value < ds->ds_reserved) |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3258 return (ENOSPC); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3259 |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3260 return (0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3261 } |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3262 |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3263 extern void dsl_prop_set_sync(void *, void *, dmu_tx_t *); |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3264 |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3265 void |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3266 dsl_dataset_set_quota_sync(void *arg1, void *arg2, dmu_tx_t *tx) |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3267 { |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3268 dsl_dataset_t *ds = arg1; |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3269 dsl_prop_setarg_t *psa = arg2; |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3270 uint64_t effective_value = psa->psa_effective_value; |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3271 |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3272 dsl_prop_set_sync(ds, psa, tx); |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3273 DSL_PROP_CHECK_PREDICTION(ds->ds_dir, psa); |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3274 |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3275 if (ds->ds_quota != effective_value) { |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3276 dmu_buf_will_dirty(ds->ds_dbuf, tx); |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3277 ds->ds_quota = effective_value; |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3278 |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3279 spa_history_log_internal(LOG_DS_REFQUOTA, |
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3280 ds->ds_dir->dd_pool->dp_spa, tx, "%lld dataset = %llu ", |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3281 (longlong_t)ds->ds_quota, ds->ds_object); |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3282 } |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3283 } |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3284 |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3285 int |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3286 dsl_dataset_set_quota(const char *dsname, zprop_source_t source, uint64_t quota) |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3287 { |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3288 dsl_dataset_t *ds; |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3289 dsl_prop_setarg_t psa; |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3290 int err; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3291 |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3292 dsl_prop_setarg_init_uint64(&psa, "refquota", source, "a); |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3293 |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3294 err = dsl_dataset_hold(dsname, FTAG, &ds); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3295 if (err) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3296 return (err); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3297 |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3298 /* |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3299 * If someone removes a file, then tries to set the quota, we |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3300 * want to make sure the file freeing takes effect. |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3301 */ |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3302 txg_wait_open(ds->ds_dir->dd_pool, 0); |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3303 |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3304 err = dsl_sync_task_do(ds->ds_dir->dd_pool, |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3305 dsl_dataset_set_quota_check, dsl_dataset_set_quota_sync, |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3306 ds, &psa, 0); |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3307 |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3308 dsl_dataset_rele(ds, FTAG); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3309 return (err); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3310 } |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3311 |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3312 static int |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3313 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
|
3314 { |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3315 dsl_dataset_t *ds = arg1; |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3316 dsl_prop_setarg_t *psa = arg2; |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3317 uint64_t effective_value; |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3318 uint64_t unique; |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3319 int err; |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3320 |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3321 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
|
3322 SPA_VERSION_REFRESERVATION) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3323 return (ENOTSUP); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3324 |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3325 if (dsl_dataset_is_snapshot(ds)) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3326 return (EINVAL); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3327 |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3328 if ((err = dsl_prop_predict_sync(ds->ds_dir, psa)) != 0) |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3329 return (err); |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3330 |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3331 effective_value = psa->psa_effective_value; |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3332 |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3333 /* |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3334 * 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
|
3335 * space estimates may be inaccurate. |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3336 */ |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3337 if (!dmu_tx_is_syncing(tx)) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3338 return (0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3339 |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3340 mutex_enter(&ds->ds_lock); |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3341 if (!DS_UNIQUE_IS_ACCURATE(ds)) |
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3342 dsl_dataset_recalc_head_uniq(ds); |
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3343 unique = ds->ds_phys->ds_unique_bytes; |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3344 mutex_exit(&ds->ds_lock); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3345 |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3346 if (MAX(unique, effective_value) > MAX(unique, ds->ds_reserved)) { |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3347 uint64_t delta = MAX(unique, effective_value) - |
8525
e0e0e525d0f8
6788830 set large value to reservation cause core dump
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
8517
diff
changeset
|
3348 MAX(unique, ds->ds_reserved); |
e0e0e525d0f8
6788830 set large value to reservation cause core dump
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
8517
diff
changeset
|
3349 |
e0e0e525d0f8
6788830 set large value to reservation cause core dump
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
8517
diff
changeset
|
3350 if (delta > dsl_dir_space_available(ds->ds_dir, NULL, 0, TRUE)) |
e0e0e525d0f8
6788830 set large value to reservation cause core dump
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
8517
diff
changeset
|
3351 return (ENOSPC); |
e0e0e525d0f8
6788830 set large value to reservation cause core dump
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
8517
diff
changeset
|
3352 if (ds->ds_quota > 0 && |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3353 effective_value > ds->ds_quota) |
8525
e0e0e525d0f8
6788830 set large value to reservation cause core dump
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
8517
diff
changeset
|
3354 return (ENOSPC); |
e0e0e525d0f8
6788830 set large value to reservation cause core dump
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
8517
diff
changeset
|
3355 } |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3356 |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3357 return (0); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3358 } |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3359 |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3360 static void |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3361 dsl_dataset_set_reservation_sync(void *arg1, void *arg2, dmu_tx_t *tx) |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3362 { |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3363 dsl_dataset_t *ds = arg1; |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3364 dsl_prop_setarg_t *psa = arg2; |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3365 uint64_t effective_value = psa->psa_effective_value; |
7595
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3366 uint64_t unique; |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3367 int64_t delta; |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3368 |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3369 dsl_prop_set_sync(ds, psa, tx); |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3370 DSL_PROP_CHECK_PREDICTION(ds->ds_dir, psa); |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3371 |
7595
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3372 dmu_buf_will_dirty(ds->ds_dbuf, tx); |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3373 |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3374 mutex_enter(&ds->ds_dir->dd_lock); |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3375 mutex_enter(&ds->ds_lock); |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3376 ASSERT(DS_UNIQUE_IS_ACCURATE(ds)); |
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3377 unique = ds->ds_phys->ds_unique_bytes; |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3378 delta = MAX(0, (int64_t)(effective_value - unique)) - |
7595
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3379 MAX(0, (int64_t)(ds->ds_reserved - unique)); |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3380 ds->ds_reserved = effective_value; |
7595
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3381 mutex_exit(&ds->ds_lock); |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3382 |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3383 dsl_dir_diduse_space(ds->ds_dir, DD_USED_REFRSRV, delta, 0, 0, tx); |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3384 mutex_exit(&ds->ds_dir->dd_lock); |
2ff5700c7efc
6747355 finish closing race condition when setting refreservation
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
7525
diff
changeset
|
3385 |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3386 spa_history_log_internal(LOG_DS_REFRESERV, |
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3387 ds->ds_dir->dd_pool->dp_spa, tx, "%lld dataset = %llu", |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3388 (longlong_t)effective_value, ds->ds_object); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3389 } |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3390 |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3391 int |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3392 dsl_dataset_set_reservation(const char *dsname, zprop_source_t source, |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3393 uint64_t reservation) |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3394 { |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3395 dsl_dataset_t *ds; |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3396 dsl_prop_setarg_t psa; |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3397 int err; |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3398 |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3399 dsl_prop_setarg_init_uint64(&psa, "refreservation", source, |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3400 &reservation); |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3401 |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3402 err = dsl_dataset_hold(dsname, FTAG, &ds); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3403 if (err) |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3404 return (err); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3405 |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3406 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
|
3407 dsl_dataset_set_reservation_check, |
11022
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3408 dsl_dataset_set_reservation_sync, ds, &psa, 0); |
63ab26072e41
PSARC 2009/510 ZFS received properties
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
10951
diff
changeset
|
3409 |
6689
47572a2f5e73
6610506 Eliminate or improve retry logic from callers of dmu_objset_open()
maybee
parents:
6643
diff
changeset
|
3410 dsl_dataset_rele(ds, FTAG); |
5378
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3411 return (err); |
111aa1baa84a
PSARC 2007/555 zfs fs-only quotas and reservations
ck153898
parents:
5367
diff
changeset
|
3412 } |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3413 |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3414 struct dsl_ds_holdarg { |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3415 dsl_sync_task_group_t *dstg; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3416 char *htag; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3417 char *snapname; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3418 boolean_t recursive; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3419 boolean_t gotone; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3420 boolean_t temphold; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3421 char failed[MAXPATHLEN]; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3422 }; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3423 |
10951
56fd5475e8fe
6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx)
Chris Kirby <Chris.Kirby@sun.com>
parents:
10922
diff
changeset
|
3424 /* |
56fd5475e8fe
6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx)
Chris Kirby <Chris.Kirby@sun.com>
parents:
10922
diff
changeset
|
3425 * The max length of a temporary tag prefix is the number of hex digits |
56fd5475e8fe
6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx)
Chris Kirby <Chris.Kirby@sun.com>
parents:
10922
diff
changeset
|
3426 * required to express UINT64_MAX plus one for the hyphen. |
56fd5475e8fe
6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx)
Chris Kirby <Chris.Kirby@sun.com>
parents:
10922
diff
changeset
|
3427 */ |
56fd5475e8fe
6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx)
Chris Kirby <Chris.Kirby@sun.com>
parents:
10922
diff
changeset
|
3428 #define MAX_TAG_PREFIX_LEN 17 |
56fd5475e8fe
6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx)
Chris Kirby <Chris.Kirby@sun.com>
parents:
10922
diff
changeset
|
3429 |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3430 static int |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3431 dsl_dataset_user_hold_check(void *arg1, void *arg2, dmu_tx_t *tx) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3432 { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3433 dsl_dataset_t *ds = arg1; |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3434 struct dsl_ds_holdarg *ha = arg2; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3435 char *htag = ha->htag; |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3436 objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3437 int error = 0; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3438 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3439 if (spa_version(ds->ds_dir->dd_pool->dp_spa) < SPA_VERSION_USERREFS) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3440 return (ENOTSUP); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3441 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3442 if (!dsl_dataset_is_snapshot(ds)) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3443 return (EINVAL); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3444 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3445 /* tags must be unique */ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3446 mutex_enter(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3447 if (ds->ds_phys->ds_userrefs_obj) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3448 error = zap_lookup(mos, ds->ds_phys->ds_userrefs_obj, htag, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3449 8, 1, tx); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3450 if (error == 0) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3451 error = EEXIST; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3452 else if (error == ENOENT) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3453 error = 0; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3454 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3455 mutex_exit(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3456 |
10951
56fd5475e8fe
6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx)
Chris Kirby <Chris.Kirby@sun.com>
parents:
10922
diff
changeset
|
3457 if (error == 0 && ha->temphold && |
56fd5475e8fe
6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx)
Chris Kirby <Chris.Kirby@sun.com>
parents:
10922
diff
changeset
|
3458 strlen(htag) + MAX_TAG_PREFIX_LEN >= MAXNAMELEN) |
56fd5475e8fe
6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx)
Chris Kirby <Chris.Kirby@sun.com>
parents:
10922
diff
changeset
|
3459 error = E2BIG; |
56fd5475e8fe
6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx)
Chris Kirby <Chris.Kirby@sun.com>
parents:
10922
diff
changeset
|
3460 |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3461 return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3462 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3463 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3464 static void |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3465 dsl_dataset_user_hold_sync(void *arg1, void *arg2, dmu_tx_t *tx) |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3466 { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3467 dsl_dataset_t *ds = arg1; |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3468 struct dsl_ds_holdarg *ha = arg2; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3469 char *htag = ha->htag; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3470 dsl_pool_t *dp = ds->ds_dir->dd_pool; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3471 objset_t *mos = dp->dp_meta_objset; |
10951
56fd5475e8fe
6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx)
Chris Kirby <Chris.Kirby@sun.com>
parents:
10922
diff
changeset
|
3472 uint64_t now = gethrestime_sec(); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3473 uint64_t zapobj; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3474 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3475 mutex_enter(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3476 if (ds->ds_phys->ds_userrefs_obj == 0) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3477 /* |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3478 * This is the first user hold for this dataset. Create |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3479 * the userrefs zap object. |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3480 */ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3481 dmu_buf_will_dirty(ds->ds_dbuf, tx); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3482 zapobj = ds->ds_phys->ds_userrefs_obj = |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3483 zap_create(mos, DMU_OT_USERREFS, DMU_OT_NONE, 0, tx); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3484 } else { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3485 zapobj = ds->ds_phys->ds_userrefs_obj; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3486 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3487 ds->ds_userrefs++; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3488 mutex_exit(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3489 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3490 VERIFY(0 == zap_add(mos, zapobj, htag, 8, 1, &now, tx)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3491 |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3492 if (ha->temphold) { |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3493 VERIFY(0 == dsl_pool_user_hold(dp, ds->ds_object, |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3494 htag, &now, tx)); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3495 } |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3496 |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3497 spa_history_log_internal(LOG_DS_USER_HOLD, |
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3498 dp->dp_spa, tx, "<%s> temp = %d dataset = %llu", htag, |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3499 (int)ha->temphold, ds->ds_object); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3500 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3501 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3502 static int |
11209
462283cb4096
6905188 panic: kernel heap corruption when doing "zfs rename -r"
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
11022
diff
changeset
|
3503 dsl_dataset_user_hold_one(const char *dsname, void *arg) |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3504 { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3505 struct dsl_ds_holdarg *ha = arg; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3506 dsl_dataset_t *ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3507 int error; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3508 char *name; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3509 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3510 /* alloc a buffer to hold dsname@snapname plus terminating NULL */ |
10272
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
3511 name = kmem_asprintf("%s@%s", dsname, ha->snapname); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3512 error = dsl_dataset_hold(name, ha->dstg, &ds); |
10272
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
3513 strfree(name); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3514 if (error == 0) { |
10268
cb380b2e9410
6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot
Chris Kirby <chris.kirby@sun.com>
parents:
10242
diff
changeset
|
3515 ha->gotone = B_TRUE; |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3516 dsl_sync_task_create(ha->dstg, dsl_dataset_user_hold_check, |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3517 dsl_dataset_user_hold_sync, ds, ha, 0); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3518 } else if (error == ENOENT && ha->recursive) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3519 error = 0; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3520 } else { |
11209
462283cb4096
6905188 panic: kernel heap corruption when doing "zfs rename -r"
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
11022
diff
changeset
|
3521 (void) strlcpy(ha->failed, dsname, sizeof (ha->failed)); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3522 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3523 return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3524 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3525 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3526 int |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3527 dsl_dataset_user_hold(char *dsname, char *snapname, char *htag, |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3528 boolean_t recursive, boolean_t temphold) |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3529 { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3530 struct dsl_ds_holdarg *ha; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3531 dsl_sync_task_t *dst; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3532 spa_t *spa; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3533 int error; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3534 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3535 ha = kmem_zalloc(sizeof (struct dsl_ds_holdarg), KM_SLEEP); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3536 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3537 (void) strlcpy(ha->failed, dsname, sizeof (ha->failed)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3538 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3539 error = spa_open(dsname, &spa, FTAG); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3540 if (error) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3541 kmem_free(ha, sizeof (struct dsl_ds_holdarg)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3542 return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3543 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3544 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3545 ha->dstg = dsl_sync_task_group_create(spa_get_dsl(spa)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3546 ha->htag = htag; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3547 ha->snapname = snapname; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3548 ha->recursive = recursive; |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3549 ha->temphold = temphold; |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3550 if (recursive) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3551 error = dmu_objset_find(dsname, dsl_dataset_user_hold_one, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3552 ha, DS_FIND_CHILDREN); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3553 } else { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3554 error = dsl_dataset_user_hold_one(dsname, ha); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3555 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3556 if (error == 0) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3557 error = dsl_sync_task_group_wait(ha->dstg); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3558 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3559 for (dst = list_head(&ha->dstg->dstg_tasks); dst; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3560 dst = list_next(&ha->dstg->dstg_tasks, dst)) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3561 dsl_dataset_t *ds = dst->dst_arg1; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3562 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3563 if (dst->dst_err) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3564 dsl_dataset_name(ds, ha->failed); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3565 *strchr(ha->failed, '@') = '\0'; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3566 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3567 dsl_dataset_rele(ds, ha->dstg); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3568 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3569 |
10268
cb380b2e9410
6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot
Chris Kirby <chris.kirby@sun.com>
parents:
10242
diff
changeset
|
3570 if (error == 0 && recursive && !ha->gotone) |
cb380b2e9410
6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot
Chris Kirby <chris.kirby@sun.com>
parents:
10242
diff
changeset
|
3571 error = ENOENT; |
cb380b2e9410
6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot
Chris Kirby <chris.kirby@sun.com>
parents:
10242
diff
changeset
|
3572 |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3573 if (error) |
11209
462283cb4096
6905188 panic: kernel heap corruption when doing "zfs rename -r"
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
11022
diff
changeset
|
3574 (void) strlcpy(dsname, ha->failed, sizeof (ha->failed)); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3575 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3576 dsl_sync_task_group_destroy(ha->dstg); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3577 kmem_free(ha, sizeof (struct dsl_ds_holdarg)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3578 spa_close(spa, FTAG); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3579 return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3580 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3581 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3582 struct dsl_ds_releasearg { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3583 dsl_dataset_t *ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3584 const char *htag; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3585 boolean_t own; /* do we own or just hold ds? */ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3586 }; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3587 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3588 static int |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3589 dsl_dataset_release_might_destroy(dsl_dataset_t *ds, const char *htag, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3590 boolean_t *might_destroy) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3591 { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3592 objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3593 uint64_t zapobj; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3594 uint64_t tmp; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3595 int error; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3596 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3597 *might_destroy = B_FALSE; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3598 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3599 mutex_enter(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3600 zapobj = ds->ds_phys->ds_userrefs_obj; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3601 if (zapobj == 0) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3602 /* The tag can't possibly exist */ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3603 mutex_exit(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3604 return (ESRCH); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3605 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3606 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3607 /* Make sure the tag exists */ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3608 error = zap_lookup(mos, zapobj, htag, 8, 1, &tmp); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3609 if (error) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3610 mutex_exit(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3611 if (error == ENOENT) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3612 error = ESRCH; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3613 return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3614 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3615 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3616 if (ds->ds_userrefs == 1 && ds->ds_phys->ds_num_children == 1 && |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3617 DS_IS_DEFER_DESTROY(ds)) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3618 *might_destroy = B_TRUE; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3619 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3620 mutex_exit(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3621 return (0); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3622 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3623 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3624 static int |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3625 dsl_dataset_user_release_check(void *arg1, void *tag, dmu_tx_t *tx) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3626 { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3627 struct dsl_ds_releasearg *ra = arg1; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3628 dsl_dataset_t *ds = ra->ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3629 boolean_t might_destroy; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3630 int error; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3631 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3632 if (spa_version(ds->ds_dir->dd_pool->dp_spa) < SPA_VERSION_USERREFS) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3633 return (ENOTSUP); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3634 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3635 error = dsl_dataset_release_might_destroy(ds, ra->htag, &might_destroy); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3636 if (error) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3637 return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3638 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3639 if (might_destroy) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3640 struct dsl_ds_destroyarg dsda = {0}; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3641 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3642 if (dmu_tx_is_syncing(tx)) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3643 /* |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3644 * If we're not prepared to remove the snapshot, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3645 * we can't allow the release to happen right now. |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3646 */ |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3647 if (!ra->own) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3648 return (EBUSY); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3649 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3650 dsda.ds = ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3651 dsda.releasing = B_TRUE; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3652 return (dsl_dataset_destroy_check(&dsda, tag, tx)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3653 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3654 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3655 return (0); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3656 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3657 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3658 static void |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3659 dsl_dataset_user_release_sync(void *arg1, void *tag, dmu_tx_t *tx) |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3660 { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3661 struct dsl_ds_releasearg *ra = arg1; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3662 dsl_dataset_t *ds = ra->ds; |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3663 dsl_pool_t *dp = ds->ds_dir->dd_pool; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3664 objset_t *mos = dp->dp_meta_objset; |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3665 uint64_t zapobj; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3666 uint64_t dsobj = ds->ds_object; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3667 uint64_t refs; |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3668 int error; |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3669 |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3670 if (ds->ds_objset) { |
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3671 dmu_objset_evict(ds->ds_objset); |
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3672 ds->ds_objset = NULL; |
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3673 } |
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3674 |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3675 mutex_enter(&ds->ds_lock); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3676 ds->ds_userrefs--; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3677 refs = ds->ds_userrefs; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3678 mutex_exit(&ds->ds_lock); |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3679 error = dsl_pool_user_release(dp, ds->ds_object, ra->htag, tx); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3680 VERIFY(error == 0 || error == ENOENT); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3681 zapobj = ds->ds_phys->ds_userrefs_obj; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3682 VERIFY(0 == zap_remove(mos, zapobj, ra->htag, tx)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3683 if (ds->ds_userrefs == 0 && ds->ds_phys->ds_num_children == 1 && |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3684 DS_IS_DEFER_DESTROY(ds)) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3685 struct dsl_ds_destroyarg dsda = {0}; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3686 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3687 ASSERT(ra->own); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3688 dsda.ds = ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3689 dsda.releasing = B_TRUE; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3690 /* We already did the destroy_check */ |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3691 dsl_dataset_destroy_sync(&dsda, tag, tx); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3692 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3693 |
12296
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3694 spa_history_log_internal(LOG_DS_USER_RELEASE, |
7cf402a7f374
6675946 'zpool status' should show the progress of resilvering for individual disk.
Lin Ling <Lin.Ling@Sun.COM>
parents:
12295
diff
changeset
|
3695 dp->dp_spa, tx, "<%s> %lld dataset = %llu", |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3696 ra->htag, (longlong_t)refs, dsobj); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3697 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3698 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3699 static int |
11209
462283cb4096
6905188 panic: kernel heap corruption when doing "zfs rename -r"
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
11022
diff
changeset
|
3700 dsl_dataset_user_release_one(const char *dsname, void *arg) |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3701 { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3702 struct dsl_ds_holdarg *ha = arg; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3703 struct dsl_ds_releasearg *ra; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3704 dsl_dataset_t *ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3705 int error; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3706 void *dtag = ha->dstg; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3707 char *name; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3708 boolean_t own = B_FALSE; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3709 boolean_t might_destroy; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3710 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3711 /* alloc a buffer to hold dsname@snapname, plus the terminating NULL */ |
10272
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
3712 name = kmem_asprintf("%s@%s", dsname, ha->snapname); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3713 error = dsl_dataset_hold(name, dtag, &ds); |
10272
a0669934e974
6861581 ZFS frees in synching context during rollback
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10268
diff
changeset
|
3714 strfree(name); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3715 if (error == ENOENT && ha->recursive) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3716 return (0); |
11209
462283cb4096
6905188 panic: kernel heap corruption when doing "zfs rename -r"
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
11022
diff
changeset
|
3717 (void) strlcpy(ha->failed, dsname, sizeof (ha->failed)); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3718 if (error) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3719 return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3720 |
10268
cb380b2e9410
6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot
Chris Kirby <chris.kirby@sun.com>
parents:
10242
diff
changeset
|
3721 ha->gotone = B_TRUE; |
cb380b2e9410
6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot
Chris Kirby <chris.kirby@sun.com>
parents:
10242
diff
changeset
|
3722 |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3723 ASSERT(dsl_dataset_is_snapshot(ds)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3724 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3725 error = dsl_dataset_release_might_destroy(ds, ha->htag, &might_destroy); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3726 if (error) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3727 dsl_dataset_rele(ds, dtag); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3728 return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3729 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3730 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3731 if (might_destroy) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3732 #ifdef _KERNEL |
12115
3655f38d3bea
6942295 use-after-free panic in dsl_dataset_user_release_one
Chris Kirby <Chris.Kirby@oracle.com>
parents:
11823
diff
changeset
|
3733 name = kmem_asprintf("%s@%s", dsname, ha->snapname); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3734 error = zfs_unmount_snap(name, NULL); |
12115
3655f38d3bea
6942295 use-after-free panic in dsl_dataset_user_release_one
Chris Kirby <Chris.Kirby@oracle.com>
parents:
11823
diff
changeset
|
3735 strfree(name); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3736 if (error) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3737 dsl_dataset_rele(ds, dtag); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3738 return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3739 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3740 #endif |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10272
diff
changeset
|
3741 if (!dsl_dataset_tryown(ds, B_TRUE, dtag)) { |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3742 dsl_dataset_rele(ds, dtag); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3743 return (EBUSY); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3744 } else { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3745 own = B_TRUE; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3746 dsl_dataset_make_exclusive(ds, dtag); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3747 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3748 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3749 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3750 ra = kmem_alloc(sizeof (struct dsl_ds_releasearg), KM_SLEEP); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3751 ra->ds = ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3752 ra->htag = ha->htag; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3753 ra->own = own; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3754 dsl_sync_task_create(ha->dstg, dsl_dataset_user_release_check, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3755 dsl_dataset_user_release_sync, ra, dtag, 0); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3756 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3757 return (0); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3758 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3759 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3760 int |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3761 dsl_dataset_user_release(char *dsname, char *snapname, char *htag, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3762 boolean_t recursive) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3763 { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3764 struct dsl_ds_holdarg *ha; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3765 dsl_sync_task_t *dst; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3766 spa_t *spa; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3767 int error; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3768 |
11546
42ea6be8961b
6915111 zfs_iter_snapshots() can miss snapshots
Chris Kirby <Chris.Kirby@sun.com>
parents:
11209
diff
changeset
|
3769 top: |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3770 ha = kmem_zalloc(sizeof (struct dsl_ds_holdarg), KM_SLEEP); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3771 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3772 (void) strlcpy(ha->failed, dsname, sizeof (ha->failed)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3773 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3774 error = spa_open(dsname, &spa, FTAG); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3775 if (error) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3776 kmem_free(ha, sizeof (struct dsl_ds_holdarg)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3777 return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3778 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3779 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3780 ha->dstg = dsl_sync_task_group_create(spa_get_dsl(spa)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3781 ha->htag = htag; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3782 ha->snapname = snapname; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3783 ha->recursive = recursive; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3784 if (recursive) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3785 error = dmu_objset_find(dsname, dsl_dataset_user_release_one, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3786 ha, DS_FIND_CHILDREN); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3787 } else { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3788 error = dsl_dataset_user_release_one(dsname, ha); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3789 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3790 if (error == 0) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3791 error = dsl_sync_task_group_wait(ha->dstg); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3792 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3793 for (dst = list_head(&ha->dstg->dstg_tasks); dst; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3794 dst = list_next(&ha->dstg->dstg_tasks, dst)) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3795 struct dsl_ds_releasearg *ra = dst->dst_arg1; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3796 dsl_dataset_t *ds = ra->ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3797 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3798 if (dst->dst_err) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3799 dsl_dataset_name(ds, ha->failed); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3800 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3801 if (ra->own) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3802 dsl_dataset_disown(ds, ha->dstg); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3803 else |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3804 dsl_dataset_rele(ds, ha->dstg); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3805 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3806 kmem_free(ra, sizeof (struct dsl_ds_releasearg)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3807 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3808 |
10268
cb380b2e9410
6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot
Chris Kirby <chris.kirby@sun.com>
parents:
10242
diff
changeset
|
3809 if (error == 0 && recursive && !ha->gotone) |
cb380b2e9410
6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot
Chris Kirby <chris.kirby@sun.com>
parents:
10242
diff
changeset
|
3810 error = ENOENT; |
cb380b2e9410
6868130 ZFS hold/release "zfs hold -r tag snapshot" failed to check the existence of snapshot
Chris Kirby <chris.kirby@sun.com>
parents:
10242
diff
changeset
|
3811 |
11546
42ea6be8961b
6915111 zfs_iter_snapshots() can miss snapshots
Chris Kirby <Chris.Kirby@sun.com>
parents:
11209
diff
changeset
|
3812 if (error && error != EBUSY) |
11209
462283cb4096
6905188 panic: kernel heap corruption when doing "zfs rename -r"
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
11022
diff
changeset
|
3813 (void) strlcpy(dsname, ha->failed, sizeof (ha->failed)); |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3814 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3815 dsl_sync_task_group_destroy(ha->dstg); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3816 kmem_free(ha, sizeof (struct dsl_ds_holdarg)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3817 spa_close(spa, FTAG); |
11546
42ea6be8961b
6915111 zfs_iter_snapshots() can miss snapshots
Chris Kirby <Chris.Kirby@sun.com>
parents:
11209
diff
changeset
|
3818 |
42ea6be8961b
6915111 zfs_iter_snapshots() can miss snapshots
Chris Kirby <Chris.Kirby@sun.com>
parents:
11209
diff
changeset
|
3819 /* |
42ea6be8961b
6915111 zfs_iter_snapshots() can miss snapshots
Chris Kirby <Chris.Kirby@sun.com>
parents:
11209
diff
changeset
|
3820 * We can get EBUSY if we were racing with deferred destroy and |
42ea6be8961b
6915111 zfs_iter_snapshots() can miss snapshots
Chris Kirby <Chris.Kirby@sun.com>
parents:
11209
diff
changeset
|
3821 * dsl_dataset_user_release_check() hadn't done the necessary |
42ea6be8961b
6915111 zfs_iter_snapshots() can miss snapshots
Chris Kirby <Chris.Kirby@sun.com>
parents:
11209
diff
changeset
|
3822 * open context setup. We can also get EBUSY if we're racing |
42ea6be8961b
6915111 zfs_iter_snapshots() can miss snapshots
Chris Kirby <Chris.Kirby@sun.com>
parents:
11209
diff
changeset
|
3823 * with destroy and that thread is the ds_owner. Either way |
42ea6be8961b
6915111 zfs_iter_snapshots() can miss snapshots
Chris Kirby <Chris.Kirby@sun.com>
parents:
11209
diff
changeset
|
3824 * the busy condition should be transient, and we should retry |
42ea6be8961b
6915111 zfs_iter_snapshots() can miss snapshots
Chris Kirby <Chris.Kirby@sun.com>
parents:
11209
diff
changeset
|
3825 * the release operation. |
42ea6be8961b
6915111 zfs_iter_snapshots() can miss snapshots
Chris Kirby <Chris.Kirby@sun.com>
parents:
11209
diff
changeset
|
3826 */ |
42ea6be8961b
6915111 zfs_iter_snapshots() can miss snapshots
Chris Kirby <Chris.Kirby@sun.com>
parents:
11209
diff
changeset
|
3827 if (error == EBUSY) |
42ea6be8961b
6915111 zfs_iter_snapshots() can miss snapshots
Chris Kirby <Chris.Kirby@sun.com>
parents:
11209
diff
changeset
|
3828 goto top; |
42ea6be8961b
6915111 zfs_iter_snapshots() can miss snapshots
Chris Kirby <Chris.Kirby@sun.com>
parents:
11209
diff
changeset
|
3829 |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3830 return (error); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3831 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3832 |
10342
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3833 /* |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3834 * Called at spa_load time to release a stale temporary user hold. |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3835 */ |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3836 int |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3837 dsl_dataset_user_release_tmp(dsl_pool_t *dp, uint64_t dsobj, char *htag) |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3838 { |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3839 dsl_dataset_t *ds; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3840 char *snap; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3841 char *name; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3842 int namelen; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3843 int error; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3844 |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3845 rw_enter(&dp->dp_config_rwlock, RW_READER); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3846 error = dsl_dataset_hold_obj(dp, dsobj, FTAG, &ds); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3847 rw_exit(&dp->dp_config_rwlock); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3848 if (error) |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3849 return (error); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3850 namelen = dsl_dataset_namelen(ds)+1; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3851 name = kmem_alloc(namelen, KM_SLEEP); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3852 dsl_dataset_name(ds, name); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3853 dsl_dataset_rele(ds, FTAG); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3854 |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3855 snap = strchr(name, '@'); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3856 *snap = '\0'; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3857 ++snap; |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3858 return (dsl_dataset_user_release(name, snap, htag, B_FALSE)); |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3859 } |
108f0058f837
6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures
Chris Kirby <chris.kirby@sun.com>
parents:
10298
diff
changeset
|
3860 |
10242
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3861 int |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3862 dsl_dataset_get_holds(const char *dsname, nvlist_t **nvp) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3863 { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3864 dsl_dataset_t *ds; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3865 int err; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3866 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3867 err = dsl_dataset_hold(dsname, FTAG, &ds); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3868 if (err) |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3869 return (err); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3870 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3871 VERIFY(0 == nvlist_alloc(nvp, NV_UNIQUE_NAME, KM_SLEEP)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3872 if (ds->ds_phys->ds_userrefs_obj != 0) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3873 zap_attribute_t *za; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3874 zap_cursor_t zc; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3875 |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3876 za = kmem_alloc(sizeof (zap_attribute_t), KM_SLEEP); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3877 for (zap_cursor_init(&zc, ds->ds_dir->dd_pool->dp_meta_objset, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3878 ds->ds_phys->ds_userrefs_obj); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3879 zap_cursor_retrieve(&zc, za) == 0; |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3880 zap_cursor_advance(&zc)) { |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3881 VERIFY(0 == nvlist_add_uint64(*nvp, za->za_name, |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3882 za->za_first_integer)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3883 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3884 zap_cursor_fini(&zc); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3885 kmem_free(za, sizeof (zap_attribute_t)); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3886 } |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3887 dsl_dataset_rele(ds, FTAG); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3888 return (0); |
c40d075fbca6
PSARC/2009/297 zfs snapshot holds
Chris Kirby <chris.kirby@sun.com>
parents:
10204
diff
changeset
|
3889 } |
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3890 |
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3891 /* |
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3892 * Note, this fuction is used as the callback for dmu_objset_find(). We |
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3893 * always return 0 so that we will continue to find and process |
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3894 * inconsistent datasets, even if we encounter an error trying to |
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3895 * process one of them. |
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3896 */ |
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3897 /* ARGSUSED */ |
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3898 int |
11209
462283cb4096
6905188 panic: kernel heap corruption when doing "zfs rename -r"
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3899 dsl_destroy_inconsistent(const char *dsname, void *arg) |
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3900 { |
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3901 dsl_dataset_t *ds; |
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3902 |
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3903 if (dsl_dataset_own(dsname, B_TRUE, FTAG, &ds) == 0) { |
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3904 if (DS_IS_INCONSISTENT(ds)) |
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3905 (void) dsl_dataset_destroy(ds, FTAG, B_FALSE); |
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3906 else |
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3907 dsl_dataset_disown(ds, FTAG); |
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3908 } |
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3909 return (0); |
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3910 } |