Mercurial > illumos > illumos-gate
annotate usr/src/uts/common/fs/zfs/spa.c @ 4808:63629eaeb41a
6498144 ::kmastat could be even easier to read
6580855 spa_scrub() should be called with spa_namespace_lock held, not the config lock
| author | ek110237 |
|---|---|
| date | Mon, 06 Aug 2007 15:11:21 -0700 |
| parents | 602d3f97842c |
| children | 41ec732c6d9f |
| rev | line source |
|---|---|
| 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 */ | |
| 2082 | 21 |
| 789 | 22 /* |
|
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23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. |
| 789 | 24 * Use is subject to license terms. |
| 25 */ | |
| 26 | |
| 27 #pragma ident "%Z%%M% %I% %E% SMI" | |
| 28 | |
| 29 /* | |
| 30 * This file contains all the routines used when modifying on-disk SPA state. | |
| 31 * This includes opening, importing, destroying, exporting a pool, and syncing a | |
| 32 * pool. | |
| 33 */ | |
| 34 | |
| 35 #include <sys/zfs_context.h> | |
| 1544 | 36 #include <sys/fm/fs/zfs.h> |
| 789 | 37 #include <sys/spa_impl.h> |
| 38 #include <sys/zio.h> | |
| 39 #include <sys/zio_checksum.h> | |
| 40 #include <sys/zio_compress.h> | |
| 41 #include <sys/dmu.h> | |
| 42 #include <sys/dmu_tx.h> | |
| 43 #include <sys/zap.h> | |
| 44 #include <sys/zil.h> | |
| 45 #include <sys/vdev_impl.h> | |
| 46 #include <sys/metaslab.h> | |
| 47 #include <sys/uberblock_impl.h> | |
| 48 #include <sys/txg.h> | |
| 49 #include <sys/avl.h> | |
| 50 #include <sys/dmu_traverse.h> | |
| 3912 | 51 #include <sys/dmu_objset.h> |
| 789 | 52 #include <sys/unique.h> |
| 53 #include <sys/dsl_pool.h> | |
| 3912 | 54 #include <sys/dsl_dataset.h> |
| 789 | 55 #include <sys/dsl_dir.h> |
| 56 #include <sys/dsl_prop.h> | |
| 3912 | 57 #include <sys/dsl_synctask.h> |
| 789 | 58 #include <sys/fs/zfs.h> |
| 59 #include <sys/callb.h> | |
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60 #include <sys/systeminfo.h> |
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61 #include <sys/sunddi.h> |
| 789 | 62 |
| 2986 | 63 int zio_taskq_threads = 8; |
| 64 | |
| 789 | 65 /* |
| 66 * ========================================================================== | |
| 67 * SPA state manipulation (open/create/destroy/import/export) | |
| 68 * ========================================================================== | |
| 69 */ | |
| 70 | |
| 1544 | 71 static int |
| 72 spa_error_entry_compare(const void *a, const void *b) | |
| 73 { | |
| 74 spa_error_entry_t *sa = (spa_error_entry_t *)a; | |
| 75 spa_error_entry_t *sb = (spa_error_entry_t *)b; | |
| 76 int ret; | |
| 77 | |
| 78 ret = bcmp(&sa->se_bookmark, &sb->se_bookmark, | |
| 79 sizeof (zbookmark_t)); | |
| 80 | |
| 81 if (ret < 0) | |
| 82 return (-1); | |
| 83 else if (ret > 0) | |
| 84 return (1); | |
| 85 else | |
| 86 return (0); | |
| 87 } | |
| 88 | |
| 89 /* | |
| 90 * Utility function which retrieves copies of the current logs and | |
| 91 * re-initializes them in the process. | |
| 92 */ | |
| 93 void | |
| 94 spa_get_errlists(spa_t *spa, avl_tree_t *last, avl_tree_t *scrub) | |
| 95 { | |
| 96 ASSERT(MUTEX_HELD(&spa->spa_errlist_lock)); | |
| 97 | |
| 98 bcopy(&spa->spa_errlist_last, last, sizeof (avl_tree_t)); | |
| 99 bcopy(&spa->spa_errlist_scrub, scrub, sizeof (avl_tree_t)); | |
| 100 | |
| 101 avl_create(&spa->spa_errlist_scrub, | |
| 102 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
| 103 offsetof(spa_error_entry_t, se_avl)); | |
| 104 avl_create(&spa->spa_errlist_last, | |
| 105 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
| 106 offsetof(spa_error_entry_t, se_avl)); | |
| 107 } | |
| 108 | |
| 789 | 109 /* |
| 110 * Activate an uninitialized pool. | |
| 111 */ | |
| 112 static void | |
| 113 spa_activate(spa_t *spa) | |
| 114 { | |
| 115 int t; | |
| 116 | |
| 117 ASSERT(spa->spa_state == POOL_STATE_UNINITIALIZED); | |
| 118 | |
| 119 spa->spa_state = POOL_STATE_ACTIVE; | |
| 120 | |
| 121 spa->spa_normal_class = metaslab_class_create(); | |
| 4527 | 122 spa->spa_log_class = metaslab_class_create(); |
| 789 | 123 |
| 124 for (t = 0; t < ZIO_TYPES; t++) { | |
| 125 spa->spa_zio_issue_taskq[t] = taskq_create("spa_zio_issue", | |
| 2986 | 126 zio_taskq_threads, maxclsyspri, 50, INT_MAX, |
| 789 | 127 TASKQ_PREPOPULATE); |
| 128 spa->spa_zio_intr_taskq[t] = taskq_create("spa_zio_intr", | |
| 2986 | 129 zio_taskq_threads, maxclsyspri, 50, INT_MAX, |
| 789 | 130 TASKQ_PREPOPULATE); |
| 131 } | |
| 132 | |
| 133 rw_init(&spa->spa_traverse_lock, NULL, RW_DEFAULT, NULL); | |
| 134 | |
| 4787 | 135 rprw_init(&spa->spa_config_lock); |
| 136 | |
| 2856 | 137 mutex_init(&spa->spa_async_lock, NULL, MUTEX_DEFAULT, NULL); |
| 138 mutex_init(&spa->spa_config_cache_lock, NULL, MUTEX_DEFAULT, NULL); | |
| 139 mutex_init(&spa->spa_scrub_lock, NULL, MUTEX_DEFAULT, NULL); | |
| 140 mutex_init(&spa->spa_errlog_lock, NULL, MUTEX_DEFAULT, NULL); | |
| 141 mutex_init(&spa->spa_errlist_lock, NULL, MUTEX_DEFAULT, NULL); | |
| 142 mutex_init(&spa->spa_sync_bplist.bpl_lock, NULL, MUTEX_DEFAULT, NULL); | |
| 2926 | 143 mutex_init(&spa->spa_history_lock, NULL, MUTEX_DEFAULT, NULL); |
| 3912 | 144 mutex_init(&spa->spa_props_lock, NULL, MUTEX_DEFAULT, NULL); |
| 2856 | 145 |
| 789 | 146 list_create(&spa->spa_dirty_list, sizeof (vdev_t), |
| 147 offsetof(vdev_t, vdev_dirty_node)); | |
| 148 | |
| 149 txg_list_create(&spa->spa_vdev_txg_list, | |
| 150 offsetof(struct vdev, vdev_txg_node)); | |
| 1544 | 151 |
| 152 avl_create(&spa->spa_errlist_scrub, | |
| 153 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
| 154 offsetof(spa_error_entry_t, se_avl)); | |
| 155 avl_create(&spa->spa_errlist_last, | |
| 156 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
| 157 offsetof(spa_error_entry_t, se_avl)); | |
| 789 | 158 } |
| 159 | |
| 160 /* | |
| 161 * Opposite of spa_activate(). | |
| 162 */ | |
| 163 static void | |
| 164 spa_deactivate(spa_t *spa) | |
| 165 { | |
| 166 int t; | |
| 167 | |
| 168 ASSERT(spa->spa_sync_on == B_FALSE); | |
| 169 ASSERT(spa->spa_dsl_pool == NULL); | |
| 170 ASSERT(spa->spa_root_vdev == NULL); | |
| 171 | |
| 172 ASSERT(spa->spa_state != POOL_STATE_UNINITIALIZED); | |
| 173 | |
| 174 txg_list_destroy(&spa->spa_vdev_txg_list); | |
| 175 | |
| 176 list_destroy(&spa->spa_dirty_list); | |
| 177 | |
| 178 rw_destroy(&spa->spa_traverse_lock); | |
| 179 | |
| 180 for (t = 0; t < ZIO_TYPES; t++) { | |
| 181 taskq_destroy(spa->spa_zio_issue_taskq[t]); | |
| 182 taskq_destroy(spa->spa_zio_intr_taskq[t]); | |
| 183 spa->spa_zio_issue_taskq[t] = NULL; | |
| 184 spa->spa_zio_intr_taskq[t] = NULL; | |
| 185 } | |
| 186 | |
| 187 metaslab_class_destroy(spa->spa_normal_class); | |
| 188 spa->spa_normal_class = NULL; | |
| 189 | |
| 4527 | 190 metaslab_class_destroy(spa->spa_log_class); |
| 191 spa->spa_log_class = NULL; | |
| 192 | |
| 1544 | 193 /* |
| 194 * If this was part of an import or the open otherwise failed, we may | |
| 195 * still have errors left in the queues. Empty them just in case. | |
| 196 */ | |
| 197 spa_errlog_drain(spa); | |
| 198 | |
| 199 avl_destroy(&spa->spa_errlist_scrub); | |
| 200 avl_destroy(&spa->spa_errlist_last); | |
| 201 | |
| 789 | 202 spa->spa_state = POOL_STATE_UNINITIALIZED; |
| 203 } | |
| 204 | |
| 205 /* | |
| 206 * Verify a pool configuration, and construct the vdev tree appropriately. This | |
| 207 * will create all the necessary vdevs in the appropriate layout, with each vdev | |
| 208 * in the CLOSED state. This will prep the pool before open/creation/import. | |
| 209 * All vdev validation is done by the vdev_alloc() routine. | |
| 210 */ | |
| 2082 | 211 static int |
| 212 spa_config_parse(spa_t *spa, vdev_t **vdp, nvlist_t *nv, vdev_t *parent, | |
| 213 uint_t id, int atype) | |
| 789 | 214 { |
| 215 nvlist_t **child; | |
| 216 uint_t c, children; | |
| 2082 | 217 int error; |
| 218 | |
| 219 if ((error = vdev_alloc(spa, vdp, nv, parent, id, atype)) != 0) | |
| 220 return (error); | |
| 221 | |
| 222 if ((*vdp)->vdev_ops->vdev_op_leaf) | |
| 223 return (0); | |
| 789 | 224 |
| 225 if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, | |
| 226 &child, &children) != 0) { | |
| 2082 | 227 vdev_free(*vdp); |
| 228 *vdp = NULL; | |
| 229 return (EINVAL); | |
| 789 | 230 } |
| 231 | |
| 232 for (c = 0; c < children; c++) { | |
| 2082 | 233 vdev_t *vd; |
| 234 if ((error = spa_config_parse(spa, &vd, child[c], *vdp, c, | |
| 235 atype)) != 0) { | |
| 236 vdev_free(*vdp); | |
| 237 *vdp = NULL; | |
| 238 return (error); | |
| 789 | 239 } |
| 240 } | |
| 241 | |
| 2082 | 242 ASSERT(*vdp != NULL); |
| 243 | |
| 244 return (0); | |
| 789 | 245 } |
| 246 | |
| 247 /* | |
| 248 * Opposite of spa_load(). | |
| 249 */ | |
| 250 static void | |
| 251 spa_unload(spa_t *spa) | |
| 252 { | |
| 2082 | 253 int i; |
| 254 | |
| 789 | 255 /* |
| 1544 | 256 * Stop async tasks. |
| 257 */ | |
| 258 spa_async_suspend(spa); | |
| 259 | |
| 260 /* | |
| 789 | 261 * Stop syncing. |
| 262 */ | |
| 263 if (spa->spa_sync_on) { | |
| 264 txg_sync_stop(spa->spa_dsl_pool); | |
| 265 spa->spa_sync_on = B_FALSE; | |
| 266 } | |
| 267 | |
| 268 /* | |
| 269 * Wait for any outstanding prefetch I/O to complete. | |
| 270 */ | |
| 1544 | 271 spa_config_enter(spa, RW_WRITER, FTAG); |
| 272 spa_config_exit(spa, FTAG); | |
| 789 | 273 |
| 274 /* | |
| 275 * Close the dsl pool. | |
| 276 */ | |
| 277 if (spa->spa_dsl_pool) { | |
| 278 dsl_pool_close(spa->spa_dsl_pool); | |
| 279 spa->spa_dsl_pool = NULL; | |
| 280 } | |
| 281 | |
| 282 /* | |
| 283 * Close all vdevs. | |
| 284 */ | |
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285 if (spa->spa_root_vdev) |
| 789 | 286 vdev_free(spa->spa_root_vdev); |
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287 ASSERT(spa->spa_root_vdev == NULL); |
| 1544 | 288 |
| 2082 | 289 for (i = 0; i < spa->spa_nspares; i++) |
| 290 vdev_free(spa->spa_spares[i]); | |
| 291 if (spa->spa_spares) { | |
| 292 kmem_free(spa->spa_spares, spa->spa_nspares * sizeof (void *)); | |
| 293 spa->spa_spares = NULL; | |
| 294 } | |
| 295 if (spa->spa_sparelist) { | |
| 296 nvlist_free(spa->spa_sparelist); | |
| 297 spa->spa_sparelist = NULL; | |
| 298 } | |
| 299 | |
| 1544 | 300 spa->spa_async_suspended = 0; |
| 789 | 301 } |
| 302 | |
| 303 /* | |
| 2082 | 304 * Load (or re-load) the current list of vdevs describing the active spares for |
| 305 * this pool. When this is called, we have some form of basic information in | |
| 306 * 'spa_sparelist'. We parse this into vdevs, try to open them, and then | |
| 307 * re-generate a more complete list including status information. | |
| 308 */ | |
| 309 static void | |
| 310 spa_load_spares(spa_t *spa) | |
| 311 { | |
| 312 nvlist_t **spares; | |
| 313 uint_t nspares; | |
| 314 int i; | |
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315 vdev_t *vd, *tvd; |
| 2082 | 316 |
| 317 /* | |
| 318 * First, close and free any existing spare vdevs. | |
| 319 */ | |
| 320 for (i = 0; i < spa->spa_nspares; i++) { | |
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321 vd = spa->spa_spares[i]; |
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322 |
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323 /* Undo the call to spa_activate() below */ |
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324 if ((tvd = spa_lookup_by_guid(spa, vd->vdev_guid)) != NULL && |
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325 tvd->vdev_isspare) |
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326 spa_spare_remove(tvd); |
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327 vdev_close(vd); |
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328 vdev_free(vd); |
| 2082 | 329 } |
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330 |
| 2082 | 331 if (spa->spa_spares) |
| 332 kmem_free(spa->spa_spares, spa->spa_nspares * sizeof (void *)); | |
| 333 | |
| 334 if (spa->spa_sparelist == NULL) | |
| 335 nspares = 0; | |
| 336 else | |
| 337 VERIFY(nvlist_lookup_nvlist_array(spa->spa_sparelist, | |
| 338 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); | |
| 339 | |
| 340 spa->spa_nspares = (int)nspares; | |
| 341 spa->spa_spares = NULL; | |
| 342 | |
| 343 if (nspares == 0) | |
| 344 return; | |
| 345 | |
| 346 /* | |
| 347 * Construct the array of vdevs, opening them to get status in the | |
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348 * process. For each spare, there is potentially two different vdev_t |
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349 * structures associated with it: one in the list of spares (used only |
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350 * for basic validation purposes) and one in the active vdev |
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351 * configuration (if it's spared in). During this phase we open and |
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352 * validate each vdev on the spare list. If the vdev also exists in the |
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353 * active configuration, then we also mark this vdev as an active spare. |
| 2082 | 354 */ |
| 355 spa->spa_spares = kmem_alloc(nspares * sizeof (void *), KM_SLEEP); | |
| 356 for (i = 0; i < spa->spa_nspares; i++) { | |
| 357 VERIFY(spa_config_parse(spa, &vd, spares[i], NULL, 0, | |
| 358 VDEV_ALLOC_SPARE) == 0); | |
| 359 ASSERT(vd != NULL); | |
| 360 | |
| 361 spa->spa_spares[i] = vd; | |
| 362 | |
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363 if ((tvd = spa_lookup_by_guid(spa, vd->vdev_guid)) != NULL) { |
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364 if (!tvd->vdev_isspare) |
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365 spa_spare_add(tvd); |
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366 |
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367 /* |
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368 * We only mark the spare active if we were successfully |
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369 * able to load the vdev. Otherwise, importing a pool |
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370 * with a bad active spare would result in strange |
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371 * behavior, because multiple pool would think the spare |
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372 * is actively in use. |
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373 * |
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374 * There is a vulnerability here to an equally bizarre |
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375 * circumstance, where a dead active spare is later |
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376 * brought back to life (onlined or otherwise). Given |
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377 * the rarity of this scenario, and the extra complexity |
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378 * it adds, we ignore the possibility. |
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379 */ |
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380 if (!vdev_is_dead(tvd)) |
|
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|
381 spa_spare_activate(tvd); |
|
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|
382 } |
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|
383 |
| 2082 | 384 if (vdev_open(vd) != 0) |
| 385 continue; | |
| 386 | |
| 387 vd->vdev_top = vd; | |
| 388 (void) vdev_validate_spare(vd); | |
| 389 } | |
| 390 | |
| 391 /* | |
| 392 * Recompute the stashed list of spares, with status information | |
| 393 * this time. | |
| 394 */ | |
| 395 VERIFY(nvlist_remove(spa->spa_sparelist, ZPOOL_CONFIG_SPARES, | |
| 396 DATA_TYPE_NVLIST_ARRAY) == 0); | |
| 397 | |
| 398 spares = kmem_alloc(spa->spa_nspares * sizeof (void *), KM_SLEEP); | |
| 399 for (i = 0; i < spa->spa_nspares; i++) | |
| 400 spares[i] = vdev_config_generate(spa, spa->spa_spares[i], | |
| 401 B_TRUE, B_TRUE); | |
| 402 VERIFY(nvlist_add_nvlist_array(spa->spa_sparelist, ZPOOL_CONFIG_SPARES, | |
| 403 spares, spa->spa_nspares) == 0); | |
| 404 for (i = 0; i < spa->spa_nspares; i++) | |
| 405 nvlist_free(spares[i]); | |
| 406 kmem_free(spares, spa->spa_nspares * sizeof (void *)); | |
| 407 } | |
| 408 | |
| 409 static int | |
| 410 load_nvlist(spa_t *spa, uint64_t obj, nvlist_t **value) | |
| 411 { | |
| 412 dmu_buf_t *db; | |
| 413 char *packed = NULL; | |
| 414 size_t nvsize = 0; | |
| 415 int error; | |
| 416 *value = NULL; | |
| 417 | |
| 418 VERIFY(0 == dmu_bonus_hold(spa->spa_meta_objset, obj, FTAG, &db)); | |
| 419 nvsize = *(uint64_t *)db->db_data; | |
| 420 dmu_buf_rele(db, FTAG); | |
| 421 | |
| 422 packed = kmem_alloc(nvsize, KM_SLEEP); | |
| 423 error = dmu_read(spa->spa_meta_objset, obj, 0, nvsize, packed); | |
| 424 if (error == 0) | |
| 425 error = nvlist_unpack(packed, nvsize, value, 0); | |
| 426 kmem_free(packed, nvsize); | |
| 427 | |
| 428 return (error); | |
| 429 } | |
| 430 | |
| 431 /* | |
| 4451 | 432 * Checks to see if the given vdev could not be opened, in which case we post a |
| 433 * sysevent to notify the autoreplace code that the device has been removed. | |
| 434 */ | |
| 435 static void | |
| 436 spa_check_removed(vdev_t *vd) | |
| 437 { | |
| 438 int c; | |
| 439 | |
| 440 for (c = 0; c < vd->vdev_children; c++) | |
| 441 spa_check_removed(vd->vdev_child[c]); | |
| 442 | |
| 443 if (vd->vdev_ops->vdev_op_leaf && vdev_is_dead(vd)) { | |
| 444 zfs_post_autoreplace(vd->vdev_spa, vd); | |
| 445 spa_event_notify(vd->vdev_spa, vd, ESC_ZFS_VDEV_CHECK); | |
| 446 } | |
| 447 } | |
| 448 | |
| 449 /* | |
| 789 | 450 * Load an existing storage pool, using the pool's builtin spa_config as a |
| 1544 | 451 * source of configuration information. |
| 789 | 452 */ |
| 453 static int | |
| 1544 | 454 spa_load(spa_t *spa, nvlist_t *config, spa_load_state_t state, int mosconfig) |
| 789 | 455 { |
| 456 int error = 0; | |
| 457 nvlist_t *nvroot = NULL; | |
| 458 vdev_t *rvd; | |
| 459 uberblock_t *ub = &spa->spa_uberblock; | |
|
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460 uint64_t config_cache_txg = spa->spa_config_txg; |
| 789 | 461 uint64_t pool_guid; |
| 2082 | 462 uint64_t version; |
| 789 | 463 zio_t *zio; |
| 4451 | 464 uint64_t autoreplace = 0; |
| 789 | 465 |
| 1544 | 466 spa->spa_load_state = state; |
|
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|
467 |
| 789 | 468 if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvroot) || |
| 1733 | 469 nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &pool_guid)) { |
| 1544 | 470 error = EINVAL; |
| 471 goto out; | |
| 472 } | |
| 789 | 473 |
| 2082 | 474 /* |
| 475 * Versioning wasn't explicitly added to the label until later, so if | |
| 476 * it's not present treat it as the initial version. | |
| 477 */ | |
| 478 if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION, &version) != 0) | |
| 4577 | 479 version = SPA_VERSION_INITIAL; |
| 2082 | 480 |
| 1733 | 481 (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG, |
| 482 &spa->spa_config_txg); | |
| 483 | |
|
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484 if ((state == SPA_LOAD_IMPORT || state == SPA_LOAD_TRYIMPORT) && |
| 1544 | 485 spa_guid_exists(pool_guid, 0)) { |
| 486 error = EEXIST; | |
| 487 goto out; | |
| 488 } | |
| 789 | 489 |
|
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490 spa->spa_load_guid = pool_guid; |
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491 |
| 789 | 492 /* |
| 2082 | 493 * Parse the configuration into a vdev tree. We explicitly set the |
| 494 * value that will be returned by spa_version() since parsing the | |
| 495 * configuration requires knowing the version number. | |
| 789 | 496 */ |
| 1544 | 497 spa_config_enter(spa, RW_WRITER, FTAG); |
| 2082 | 498 spa->spa_ubsync.ub_version = version; |
| 499 error = spa_config_parse(spa, &rvd, nvroot, NULL, 0, VDEV_ALLOC_LOAD); | |
| 1544 | 500 spa_config_exit(spa, FTAG); |
| 789 | 501 |
| 2082 | 502 if (error != 0) |
| 1544 | 503 goto out; |
| 789 | 504 |
|
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505 ASSERT(spa->spa_root_vdev == rvd); |
| 789 | 506 ASSERT(spa_guid(spa) == pool_guid); |
| 507 | |
| 508 /* | |
| 509 * Try to open all vdevs, loading each label in the process. | |
| 510 */ | |
|
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511 error = vdev_open(rvd); |
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512 if (error != 0) |
| 1544 | 513 goto out; |
| 789 | 514 |
| 515 /* | |
|
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516 * Validate the labels for all leaf vdevs. We need to grab the config |
|
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517 * lock because all label I/O is done with the ZIO_FLAG_CONFIG_HELD |
|
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518 * flag. |
|
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519 */ |
|
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|
520 spa_config_enter(spa, RW_READER, FTAG); |
|
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521 error = vdev_validate(rvd); |
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|
522 spa_config_exit(spa, FTAG); |
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523 |
|
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524 if (error != 0) |
|
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525 goto out; |
|
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|
526 |
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527 if (rvd->vdev_state <= VDEV_STATE_CANT_OPEN) { |
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528 error = ENXIO; |
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529 goto out; |
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|
530 } |
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531 |
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|
532 /* |
| 789 | 533 * Find the best uberblock. |
| 534 */ | |
| 535 bzero(ub, sizeof (uberblock_t)); | |
| 536 | |
| 537 zio = zio_root(spa, NULL, NULL, | |
| 538 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE); | |
| 539 vdev_uberblock_load(zio, rvd, ub); | |
| 540 error = zio_wait(zio); | |
| 541 | |
| 542 /* | |
| 543 * If we weren't able to find a single valid uberblock, return failure. | |
| 544 */ | |
| 545 if (ub->ub_txg == 0) { | |
| 1760 | 546 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 547 VDEV_AUX_CORRUPT_DATA); | |
| 1544 | 548 error = ENXIO; |
| 549 goto out; | |
| 550 } | |
| 551 | |
| 552 /* | |
| 553 * If the pool is newer than the code, we can't open it. | |
| 554 */ | |
| 4577 | 555 if (ub->ub_version > SPA_VERSION) { |
| 1760 | 556 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 557 VDEV_AUX_VERSION_NEWER); | |
| 1544 | 558 error = ENOTSUP; |
| 559 goto out; | |
| 789 | 560 } |
| 561 | |
| 562 /* | |
| 563 * If the vdev guid sum doesn't match the uberblock, we have an | |
| 564 * incomplete configuration. | |
| 565 */ | |
| 1732 | 566 if (rvd->vdev_guid_sum != ub->ub_guid_sum && mosconfig) { |
| 1544 | 567 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 568 VDEV_AUX_BAD_GUID_SUM); | |
| 569 error = ENXIO; | |
| 570 goto out; | |
| 789 | 571 } |
| 572 | |
| 573 /* | |
| 574 * Initialize internal SPA structures. | |
| 575 */ | |
| 576 spa->spa_state = POOL_STATE_ACTIVE; | |
| 577 spa->spa_ubsync = spa->spa_uberblock; | |
| 578 spa->spa_first_txg = spa_last_synced_txg(spa) + 1; | |
| 1544 | 579 error = dsl_pool_open(spa, spa->spa_first_txg, &spa->spa_dsl_pool); |
| 580 if (error) { | |
| 581 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 582 VDEV_AUX_CORRUPT_DATA); | |
| 583 goto out; | |
| 584 } | |
| 789 | 585 spa->spa_meta_objset = spa->spa_dsl_pool->dp_meta_objset; |
| 586 | |
| 1544 | 587 if (zap_lookup(spa->spa_meta_objset, |
| 789 | 588 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CONFIG, |
| 1544 | 589 sizeof (uint64_t), 1, &spa->spa_config_object) != 0) { |
| 590 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 591 VDEV_AUX_CORRUPT_DATA); | |
| 592 error = EIO; | |
| 593 goto out; | |
| 594 } | |
| 789 | 595 |
| 596 if (!mosconfig) { | |
| 2082 | 597 nvlist_t *newconfig; |
|
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|
598 uint64_t hostid; |
| 2082 | 599 |
| 600 if (load_nvlist(spa, spa->spa_config_object, &newconfig) != 0) { | |
| 1544 | 601 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 602 VDEV_AUX_CORRUPT_DATA); | |
| 603 error = EIO; | |
| 604 goto out; | |
| 605 } | |
| 789 | 606 |
|
3975
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6282725 hostname/hostid should be stored in the label
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|
607 if (nvlist_lookup_uint64(newconfig, ZPOOL_CONFIG_HOSTID, |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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|
608 &hostid) == 0) { |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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|
609 char *hostname; |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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|
610 unsigned long myhostid = 0; |
|
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|
611 |
|
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|
612 VERIFY(nvlist_lookup_string(newconfig, |
|
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6282725 hostname/hostid should be stored in the label
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|
613 ZPOOL_CONFIG_HOSTNAME, &hostname) == 0); |
|
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6282725 hostname/hostid should be stored in the label
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|
614 |
|
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|
615 (void) ddi_strtoul(hw_serial, NULL, 10, &myhostid); |
|
4178
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6553537 zfs root fails to boot from a snv_63+zfsboot-pfinstall netinstall image
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diff
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|
616 if (hostid != 0 && myhostid != 0 && |
|
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|
617 (unsigned long)hostid != myhostid) { |
|
3975
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|
618 cmn_err(CE_WARN, "pool '%s' could not be " |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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diff
changeset
|
619 "loaded as it was last accessed by " |
|
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6282725 hostname/hostid should be stored in the label
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|
620 "another system (host: %s hostid: 0x%lx). " |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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|
621 "See: http://www.sun.com/msg/ZFS-8000-EY", |
|
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|
622 spa->spa_name, hostname, |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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|
623 (unsigned long)hostid); |
|
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|
624 error = EBADF; |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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|
625 goto out; |
|
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6282725 hostname/hostid should be stored in the label
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|
626 } |
|
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|
627 } |
|
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|
628 |
| 789 | 629 spa_config_set(spa, newconfig); |
| 630 spa_unload(spa); | |
| 631 spa_deactivate(spa); | |
| 632 spa_activate(spa); | |
| 633 | |
| 1544 | 634 return (spa_load(spa, newconfig, state, B_TRUE)); |
| 635 } | |
| 636 | |
| 637 if (zap_lookup(spa->spa_meta_objset, | |
| 638 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SYNC_BPLIST, | |
| 639 sizeof (uint64_t), 1, &spa->spa_sync_bplist_obj) != 0) { | |
| 640 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 641 VDEV_AUX_CORRUPT_DATA); | |
| 642 error = EIO; | |
| 643 goto out; | |
| 789 | 644 } |
| 645 | |
| 1544 | 646 /* |
| 2082 | 647 * Load the bit that tells us to use the new accounting function |
| 648 * (raid-z deflation). If we have an older pool, this will not | |
| 649 * be present. | |
| 650 */ | |
| 651 error = zap_lookup(spa->spa_meta_objset, | |
| 652 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
| 653 sizeof (uint64_t), 1, &spa->spa_deflate); | |
| 654 if (error != 0 && error != ENOENT) { | |
| 655 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 656 VDEV_AUX_CORRUPT_DATA); | |
| 657 error = EIO; | |
| 658 goto out; | |
| 659 } | |
| 660 | |
| 661 /* | |
| 1544 | 662 * Load the persistent error log. If we have an older pool, this will |
| 663 * not be present. | |
| 664 */ | |
| 665 error = zap_lookup(spa->spa_meta_objset, | |
| 666 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_ERRLOG_LAST, | |
| 667 sizeof (uint64_t), 1, &spa->spa_errlog_last); | |
|
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668 if (error != 0 && error != ENOENT) { |
| 1544 | 669 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 670 VDEV_AUX_CORRUPT_DATA); | |
| 671 error = EIO; | |
| 672 goto out; | |
| 673 } | |
| 674 | |
| 675 error = zap_lookup(spa->spa_meta_objset, | |
| 676 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_ERRLOG_SCRUB, | |
| 677 sizeof (uint64_t), 1, &spa->spa_errlog_scrub); | |
| 678 if (error != 0 && error != ENOENT) { | |
| 679 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 680 VDEV_AUX_CORRUPT_DATA); | |
| 681 error = EIO; | |
| 682 goto out; | |
| 683 } | |
| 789 | 684 |
| 685 /* | |
| 2926 | 686 * Load the history object. If we have an older pool, this |
| 687 * will not be present. | |
| 688 */ | |
| 689 error = zap_lookup(spa->spa_meta_objset, | |
| 690 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_HISTORY, | |
| 691 sizeof (uint64_t), 1, &spa->spa_history); | |
| 692 if (error != 0 && error != ENOENT) { | |
| 693 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 694 VDEV_AUX_CORRUPT_DATA); | |
| 695 error = EIO; | |
| 696 goto out; | |
| 697 } | |
| 698 | |
| 699 /* | |
| 2082 | 700 * Load any hot spares for this pool. |
| 701 */ | |
| 702 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, | |
| 703 DMU_POOL_SPARES, sizeof (uint64_t), 1, &spa->spa_spares_object); | |
| 704 if (error != 0 && error != ENOENT) { | |
| 705 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 706 VDEV_AUX_CORRUPT_DATA); | |
| 707 error = EIO; | |
| 708 goto out; | |
| 709 } | |
| 710 if (error == 0) { | |
| 4577 | 711 ASSERT(spa_version(spa) >= SPA_VERSION_SPARES); |
| 2082 | 712 if (load_nvlist(spa, spa->spa_spares_object, |
| 713 &spa->spa_sparelist) != 0) { | |
| 714 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 715 VDEV_AUX_CORRUPT_DATA); | |
| 716 error = EIO; | |
| 717 goto out; | |
| 718 } | |
| 719 | |
| 720 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 721 spa_load_spares(spa); | |
| 722 spa_config_exit(spa, FTAG); | |
| 723 } | |
| 724 | |
| 4543 | 725 spa->spa_delegation = zfs_prop_default_numeric(ZPOOL_PROP_DELEGATION); |
| 726 | |
| 3912 | 727 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, |
| 728 DMU_POOL_PROPS, sizeof (uint64_t), 1, &spa->spa_pool_props_object); | |
| 729 | |
| 730 if (error && error != ENOENT) { | |
| 731 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 732 VDEV_AUX_CORRUPT_DATA); | |
| 733 error = EIO; | |
| 734 goto out; | |
| 735 } | |
| 736 | |
| 737 if (error == 0) { | |
| 738 (void) zap_lookup(spa->spa_meta_objset, | |
| 739 spa->spa_pool_props_object, | |
| 4451 | 740 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), |
| 3912 | 741 sizeof (uint64_t), 1, &spa->spa_bootfs); |
| 4451 | 742 (void) zap_lookup(spa->spa_meta_objset, |
| 743 spa->spa_pool_props_object, | |
| 744 zpool_prop_to_name(ZPOOL_PROP_AUTOREPLACE), | |
| 745 sizeof (uint64_t), 1, &autoreplace); | |
| 4543 | 746 (void) zap_lookup(spa->spa_meta_objset, |
| 747 spa->spa_pool_props_object, | |
| 748 zpool_prop_to_name(ZPOOL_PROP_DELEGATION), | |
| 749 sizeof (uint64_t), 1, &spa->spa_delegation); | |
| 3912 | 750 } |
| 751 | |
| 2082 | 752 /* |
| 4451 | 753 * If the 'autoreplace' property is set, then post a resource notifying |
| 754 * the ZFS DE that it should not issue any faults for unopenable | |
| 755 * devices. We also iterate over the vdevs, and post a sysevent for any | |
| 756 * unopenable vdevs so that the normal autoreplace handler can take | |
| 757 * over. | |
| 758 */ | |
| 759 if (autoreplace) | |
| 760 spa_check_removed(spa->spa_root_vdev); | |
| 761 | |
| 762 /* | |
|
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763 * Load the vdev state for all toplevel vdevs. |
| 789 | 764 */ |
|
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765 vdev_load(rvd); |
| 789 | 766 |
| 767 /* | |
| 768 * Propagate the leaf DTLs we just loaded all the way up the tree. | |
| 769 */ | |
| 1544 | 770 spa_config_enter(spa, RW_WRITER, FTAG); |
| 789 | 771 vdev_dtl_reassess(rvd, 0, 0, B_FALSE); |
| 1544 | 772 spa_config_exit(spa, FTAG); |
| 789 | 773 |
| 774 /* | |
| 775 * Check the state of the root vdev. If it can't be opened, it | |
| 776 * indicates one or more toplevel vdevs are faulted. | |
| 777 */ | |
| 1544 | 778 if (rvd->vdev_state <= VDEV_STATE_CANT_OPEN) { |
| 779 error = ENXIO; | |
| 780 goto out; | |
| 781 } | |
| 789 | 782 |
| 1544 | 783 if ((spa_mode & FWRITE) && state != SPA_LOAD_TRYIMPORT) { |
|
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784 dmu_tx_t *tx; |
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785 int need_update = B_FALSE; |
|
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786 int c; |
|
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787 |
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788 /* |
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789 * Claim log blocks that haven't been committed yet. |
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790 * This must all happen in a single txg. |
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791 */ |
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792 tx = dmu_tx_create_assigned(spa_get_dsl(spa), |
| 789 | 793 spa_first_txg(spa)); |
| 2417 | 794 (void) dmu_objset_find(spa->spa_name, |
| 795 zil_claim, tx, DS_FIND_CHILDREN); | |
| 789 | 796 dmu_tx_commit(tx); |
| 797 | |
| 798 spa->spa_sync_on = B_TRUE; | |
| 799 txg_sync_start(spa->spa_dsl_pool); | |
| 800 | |
| 801 /* | |
| 802 * Wait for all claims to sync. | |
| 803 */ | |
| 804 txg_wait_synced(spa->spa_dsl_pool, 0); | |
|
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805 |
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806 /* |
|
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807 * If the config cache is stale, or we have uninitialized |
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808 * metaslabs (see spa_vdev_add()), then update the config. |
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809 */ |
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810 if (config_cache_txg != spa->spa_config_txg || |
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811 state == SPA_LOAD_IMPORT) |
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812 need_update = B_TRUE; |
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813 |
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814 for (c = 0; c < rvd->vdev_children; c++) |
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815 if (rvd->vdev_child[c]->vdev_ms_array == 0) |
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816 need_update = B_TRUE; |
|
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817 |
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818 /* |
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819 * Update the config cache asychronously in case we're the |
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820 * root pool, in which case the config cache isn't writable yet. |
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821 */ |
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822 if (need_update) |
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823 spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE); |
| 789 | 824 } |
| 825 | |
| 1544 | 826 error = 0; |
| 827 out: | |
| 2082 | 828 if (error && error != EBADF) |
| 1544 | 829 zfs_ereport_post(FM_EREPORT_ZFS_POOL, spa, NULL, NULL, 0, 0); |
| 830 spa->spa_load_state = SPA_LOAD_NONE; | |
| 831 spa->spa_ena = 0; | |
| 832 | |
| 833 return (error); | |
| 789 | 834 } |
| 835 | |
| 836 /* | |
| 837 * Pool Open/Import | |
| 838 * | |
| 839 * The import case is identical to an open except that the configuration is sent | |
| 840 * down from userland, instead of grabbed from the configuration cache. For the | |
| 841 * case of an open, the pool configuration will exist in the | |
| 4451 | 842 * POOL_STATE_UNINITIALIZED state. |
| 789 | 843 * |
| 844 * The stats information (gen/count/ustats) is used to gather vdev statistics at | |
| 845 * the same time open the pool, without having to keep around the spa_t in some | |
| 846 * ambiguous state. | |
| 847 */ | |
| 848 static int | |
| 849 spa_open_common(const char *pool, spa_t **spapp, void *tag, nvlist_t **config) | |
| 850 { | |
| 851 spa_t *spa; | |
| 852 int error; | |
| 853 int loaded = B_FALSE; | |
| 854 int locked = B_FALSE; | |
| 855 | |
| 856 *spapp = NULL; | |
| 857 | |
| 858 /* | |
| 859 * As disgusting as this is, we need to support recursive calls to this | |
| 860 * function because dsl_dir_open() is called during spa_load(), and ends | |
| 861 * up calling spa_open() again. The real fix is to figure out how to | |
| 862 * avoid dsl_dir_open() calling this in the first place. | |
| 863 */ | |
| 864 if (mutex_owner(&spa_namespace_lock) != curthread) { | |
| 865 mutex_enter(&spa_namespace_lock); | |
| 866 locked = B_TRUE; | |
| 867 } | |
| 868 | |
| 869 if ((spa = spa_lookup(pool)) == NULL) { | |
| 870 if (locked) | |
| 871 mutex_exit(&spa_namespace_lock); | |
| 872 return (ENOENT); | |
| 873 } | |
| 874 if (spa->spa_state == POOL_STATE_UNINITIALIZED) { | |
| 875 | |
| 876 spa_activate(spa); | |
| 877 | |
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878 error = spa_load(spa, spa->spa_config, SPA_LOAD_OPEN, B_FALSE); |
| 789 | 879 |
| 880 if (error == EBADF) { | |
| 881 /* | |
|
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882 * If vdev_validate() returns failure (indicated by |
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883 * EBADF), it indicates that one of the vdevs indicates |
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884 * that the pool has been exported or destroyed. If |
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885 * this is the case, the config cache is out of sync and |
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886 * we should remove the pool from the namespace. |
| 789 | 887 */ |
| 2082 | 888 zfs_post_ok(spa, NULL); |
| 789 | 889 spa_unload(spa); |
| 890 spa_deactivate(spa); | |
| 891 spa_remove(spa); | |
| 892 spa_config_sync(); | |
| 893 if (locked) | |
| 894 mutex_exit(&spa_namespace_lock); | |
| 895 return (ENOENT); | |
| 1544 | 896 } |
| 897 | |
| 898 if (error) { | |
| 789 | 899 /* |
| 900 * We can't open the pool, but we still have useful | |
| 901 * information: the state of each vdev after the | |
| 902 * attempted vdev_open(). Return this to the user. | |
| 903 */ | |
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904 if (config != NULL && spa->spa_root_vdev != NULL) { |
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905 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 906 *config = spa_config_generate(spa, NULL, -1ULL, |
| 907 B_TRUE); | |
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908 spa_config_exit(spa, FTAG); |
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909 } |
| 789 | 910 spa_unload(spa); |
| 911 spa_deactivate(spa); | |
| 1544 | 912 spa->spa_last_open_failed = B_TRUE; |
| 789 | 913 if (locked) |
| 914 mutex_exit(&spa_namespace_lock); | |
| 915 *spapp = NULL; | |
| 916 return (error); | |
| 1544 | 917 } else { |
| 918 zfs_post_ok(spa, NULL); | |
| 919 spa->spa_last_open_failed = B_FALSE; | |
| 789 | 920 } |
| 921 | |
| 922 loaded = B_TRUE; | |
| 923 } | |
| 924 | |
| 925 spa_open_ref(spa, tag); | |
| 4451 | 926 |
| 927 /* | |
| 928 * If we just loaded the pool, resilver anything that's out of date. | |
| 929 */ | |
| 930 if (loaded && (spa_mode & FWRITE)) | |
| 931 VERIFY(spa_scrub(spa, POOL_SCRUB_RESILVER, B_TRUE) == 0); | |
| 932 | |
| 789 | 933 if (locked) |
| 934 mutex_exit(&spa_namespace_lock); | |
| 935 | |
| 936 *spapp = spa; | |
| 937 | |
| 938 if (config != NULL) { | |
| 1544 | 939 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 940 *config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); |
| 1544 | 941 spa_config_exit(spa, FTAG); |
| 789 | 942 } |
| 943 | |
| 944 return (0); | |
| 945 } | |
| 946 | |
| 947 int | |
| 948 spa_open(const char *name, spa_t **spapp, void *tag) | |
| 949 { | |
| 950 return (spa_open_common(name, spapp, tag, NULL)); | |
| 951 } | |
| 952 | |
| 1544 | 953 /* |
| 954 * Lookup the given spa_t, incrementing the inject count in the process, | |
| 955 * preventing it from being exported or destroyed. | |
| 956 */ | |
| 957 spa_t * | |
| 958 spa_inject_addref(char *name) | |
| 959 { | |
| 960 spa_t *spa; | |
| 961 | |
| 962 mutex_enter(&spa_namespace_lock); | |
| 963 if ((spa = spa_lookup(name)) == NULL) { | |
| 964 mutex_exit(&spa_namespace_lock); | |
| 965 return (NULL); | |
| 966 } | |
| 967 spa->spa_inject_ref++; | |
| 968 mutex_exit(&spa_namespace_lock); | |
| 969 | |
| 970 return (spa); | |
| 971 } | |
| 972 | |
| 973 void | |
| 974 spa_inject_delref(spa_t *spa) | |
| 975 { | |
| 976 mutex_enter(&spa_namespace_lock); | |
| 977 spa->spa_inject_ref--; | |
| 978 mutex_exit(&spa_namespace_lock); | |
| 979 } | |
| 980 | |
| 2082 | 981 static void |
| 982 spa_add_spares(spa_t *spa, nvlist_t *config) | |
| 983 { | |
| 984 nvlist_t **spares; | |
| 985 uint_t i, nspares; | |
| 986 nvlist_t *nvroot; | |
| 987 uint64_t guid; | |
| 988 vdev_stat_t *vs; | |
| 989 uint_t vsc; | |
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990 uint64_t pool; |
| 2082 | 991 |
| 992 if (spa->spa_nspares == 0) | |
| 993 return; | |
| 994 | |
| 995 VERIFY(nvlist_lookup_nvlist(config, | |
| 996 ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); | |
| 997 VERIFY(nvlist_lookup_nvlist_array(spa->spa_sparelist, | |
| 998 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); | |
| 999 if (nspares != 0) { | |
| 1000 VERIFY(nvlist_add_nvlist_array(nvroot, | |
| 1001 ZPOOL_CONFIG_SPARES, spares, nspares) == 0); | |
| 1002 VERIFY(nvlist_lookup_nvlist_array(nvroot, | |
| 1003 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); | |
| 1004 | |
| 1005 /* | |
| 1006 * Go through and find any spares which have since been | |
| 1007 * repurposed as an active spare. If this is the case, update | |
| 1008 * their status appropriately. | |
| 1009 */ | |
| 1010 for (i = 0; i < nspares; i++) { | |
| 1011 VERIFY(nvlist_lookup_uint64(spares[i], | |
| 1012 ZPOOL_CONFIG_GUID, &guid) == 0); | |
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1013 if (spa_spare_exists(guid, &pool) && pool != 0ULL) { |
| 2082 | 1014 VERIFY(nvlist_lookup_uint64_array( |
| 1015 spares[i], ZPOOL_CONFIG_STATS, | |
| 1016 (uint64_t **)&vs, &vsc) == 0); | |
| 1017 vs->vs_state = VDEV_STATE_CANT_OPEN; | |
| 1018 vs->vs_aux = VDEV_AUX_SPARED; | |
| 1019 } | |
| 1020 } | |
| 1021 } | |
| 1022 } | |
| 1023 | |
| 789 | 1024 int |
| 1544 | 1025 spa_get_stats(const char *name, nvlist_t **config, char *altroot, size_t buflen) |
| 789 | 1026 { |
| 1027 int error; | |
| 1028 spa_t *spa; | |
| 1029 | |
| 1030 *config = NULL; | |
| 1031 error = spa_open_common(name, &spa, FTAG, config); | |
| 1032 | |
| 2082 | 1033 if (spa && *config != NULL) { |
| 1544 | 1034 VERIFY(nvlist_add_uint64(*config, ZPOOL_CONFIG_ERRCOUNT, |
| 1035 spa_get_errlog_size(spa)) == 0); | |
| 1036 | |
| 2082 | 1037 spa_add_spares(spa, *config); |
| 1038 } | |
| 1039 | |
| 1544 | 1040 /* |
| 1041 * We want to get the alternate root even for faulted pools, so we cheat | |
| 1042 * and call spa_lookup() directly. | |
| 1043 */ | |
| 1044 if (altroot) { | |
| 1045 if (spa == NULL) { | |
| 1046 mutex_enter(&spa_namespace_lock); | |
| 1047 spa = spa_lookup(name); | |
| 1048 if (spa) | |
| 1049 spa_altroot(spa, altroot, buflen); | |
| 1050 else | |
| 1051 altroot[0] = '\0'; | |
| 1052 spa = NULL; | |
| 1053 mutex_exit(&spa_namespace_lock); | |
| 1054 } else { | |
| 1055 spa_altroot(spa, altroot, buflen); | |
| 1056 } | |
| 1057 } | |
| 1058 | |
| 789 | 1059 if (spa != NULL) |
| 1060 spa_close(spa, FTAG); | |
| 1061 | |
| 1062 return (error); | |
| 1063 } | |
| 1064 | |
| 1065 /* | |
| 2082 | 1066 * Validate that the 'spares' array is well formed. We must have an array of |
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1067 * nvlists, each which describes a valid leaf vdev. If this is an import (mode |
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1068 * is VDEV_ALLOC_SPARE), then we allow corrupted spares to be specified, as long |
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1069 * as they are well-formed. |
| 2082 | 1070 */ |
| 1071 static int | |
| 1072 spa_validate_spares(spa_t *spa, nvlist_t *nvroot, uint64_t crtxg, int mode) | |
| 1073 { | |
| 1074 nvlist_t **spares; | |
| 1075 uint_t i, nspares; | |
| 1076 vdev_t *vd; | |
| 1077 int error; | |
| 1078 | |
| 1079 /* | |
| 1080 * It's acceptable to have no spares specified. | |
| 1081 */ | |
| 1082 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
| 1083 &spares, &nspares) != 0) | |
| 1084 return (0); | |
| 1085 | |
| 1086 if (nspares == 0) | |
| 1087 return (EINVAL); | |
| 1088 | |
| 1089 /* | |
| 1090 * Make sure the pool is formatted with a version that supports hot | |
| 1091 * spares. | |
| 1092 */ | |
| 4577 | 1093 if (spa_version(spa) < SPA_VERSION_SPARES) |
| 2082 | 1094 return (ENOTSUP); |
| 1095 | |
|
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1096 /* |
|
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1097 * Set the pending spare list so we correctly handle device in-use |
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1098 * checking. |
|
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1099 */ |
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1100 spa->spa_pending_spares = spares; |
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1101 spa->spa_pending_nspares = nspares; |
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1102 |
| 2082 | 1103 for (i = 0; i < nspares; i++) { |
| 1104 if ((error = spa_config_parse(spa, &vd, spares[i], NULL, 0, | |
| 1105 mode)) != 0) | |
|
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1106 goto out; |
| 2082 | 1107 |
| 1108 if (!vd->vdev_ops->vdev_op_leaf) { | |
| 1109 vdev_free(vd); | |
|
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1110 error = EINVAL; |
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1111 goto out; |
| 2082 | 1112 } |
| 1113 | |
| 1114 vd->vdev_top = vd; | |
|
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1115 |
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1116 if ((error = vdev_open(vd)) == 0 && |
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1117 (error = vdev_label_init(vd, crtxg, |
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1118 VDEV_LABEL_SPARE)) == 0) { |
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1119 VERIFY(nvlist_add_uint64(spares[i], ZPOOL_CONFIG_GUID, |
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1120 vd->vdev_guid) == 0); |
| 2082 | 1121 } |
| 1122 | |
| 1123 vdev_free(vd); | |
|
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1124 |
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1125 if (error && mode != VDEV_ALLOC_SPARE) |
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1126 goto out; |
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1127 else |
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1128 error = 0; |
| 2082 | 1129 } |
| 1130 | |
|
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1131 out: |
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1132 spa->spa_pending_spares = NULL; |
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1133 spa->spa_pending_nspares = 0; |
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1134 return (error); |
| 2082 | 1135 } |
| 1136 | |
| 1137 /* | |
| 789 | 1138 * Pool Creation |
| 1139 */ | |
| 1140 int | |
|
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1141 spa_create(const char *pool, nvlist_t *nvroot, const char *altroot, |
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1142 const char *history_str) |
| 789 | 1143 { |
| 1144 spa_t *spa; | |
|
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1145 vdev_t *rvd; |
| 789 | 1146 dsl_pool_t *dp; |
| 1147 dmu_tx_t *tx; | |
| 2082 | 1148 int c, error = 0; |
| 789 | 1149 uint64_t txg = TXG_INITIAL; |
| 2082 | 1150 nvlist_t **spares; |
| 1151 uint_t nspares; | |
| 789 | 1152 |
| 1153 /* | |
| 1154 * If this pool already exists, return failure. | |
| 1155 */ | |
| 1156 mutex_enter(&spa_namespace_lock); | |
| 1157 if (spa_lookup(pool) != NULL) { | |
| 1158 mutex_exit(&spa_namespace_lock); | |
| 1159 return (EEXIST); | |
| 1160 } | |
| 1161 | |
| 1162 /* | |
| 1163 * Allocate a new spa_t structure. | |
| 1164 */ | |
|
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1165 spa = spa_add(pool, altroot); |
| 789 | 1166 spa_activate(spa); |
| 1167 | |
| 1168 spa->spa_uberblock.ub_txg = txg - 1; | |
| 4577 | 1169 spa->spa_uberblock.ub_version = SPA_VERSION; |
| 789 | 1170 spa->spa_ubsync = spa->spa_uberblock; |
| 1171 | |
|
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1172 /* |
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1173 * Create the root vdev. |
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1174 */ |
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1175 spa_config_enter(spa, RW_WRITER, FTAG); |
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1176 |
| 2082 | 1177 error = spa_config_parse(spa, &rvd, nvroot, NULL, 0, VDEV_ALLOC_ADD); |
| 1178 | |
| 1179 ASSERT(error != 0 || rvd != NULL); | |
| 1180 ASSERT(error != 0 || spa->spa_root_vdev == rvd); | |
| 1181 | |
| 1182 if (error == 0 && rvd->vdev_children == 0) | |
|
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1183 error = EINVAL; |
| 2082 | 1184 |
| 1185 if (error == 0 && | |
| 1186 (error = vdev_create(rvd, txg, B_FALSE)) == 0 && | |
| 1187 (error = spa_validate_spares(spa, nvroot, txg, | |
| 1188 VDEV_ALLOC_ADD)) == 0) { | |
| 1189 for (c = 0; c < rvd->vdev_children; c++) | |
| 1190 vdev_init(rvd->vdev_child[c], txg); | |
| 1191 vdev_config_dirty(rvd); | |
|
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1192 } |
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1193 |
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1194 spa_config_exit(spa, FTAG); |
| 789 | 1195 |
| 2082 | 1196 if (error != 0) { |
| 789 | 1197 spa_unload(spa); |
| 1198 spa_deactivate(spa); | |
| 1199 spa_remove(spa); | |
| 1200 mutex_exit(&spa_namespace_lock); | |
| 1201 return (error); | |
| 1202 } | |
| 1203 | |
| 2082 | 1204 /* |
| 1205 * Get the list of spares, if specified. | |
| 1206 */ | |
| 1207 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
| 1208 &spares, &nspares) == 0) { | |
| 1209 VERIFY(nvlist_alloc(&spa->spa_sparelist, NV_UNIQUE_NAME, | |
| 1210 KM_SLEEP) == 0); | |
| 1211 VERIFY(nvlist_add_nvlist_array(spa->spa_sparelist, | |
| 1212 ZPOOL_CONFIG_SPARES, spares, nspares) == 0); | |
| 1213 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 1214 spa_load_spares(spa); | |
| 1215 spa_config_exit(spa, FTAG); | |
| 1216 spa->spa_sync_spares = B_TRUE; | |
| 1217 } | |
| 1218 | |
| 789 | 1219 spa->spa_dsl_pool = dp = dsl_pool_create(spa, txg); |
| 1220 spa->spa_meta_objset = dp->dp_meta_objset; | |
| 1221 | |
| 1222 tx = dmu_tx_create_assigned(dp, txg); | |
| 1223 | |
| 1224 /* | |
| 1225 * Create the pool config object. | |
| 1226 */ | |
| 1227 spa->spa_config_object = dmu_object_alloc(spa->spa_meta_objset, | |
| 1228 DMU_OT_PACKED_NVLIST, 1 << 14, | |
| 1229 DMU_OT_PACKED_NVLIST_SIZE, sizeof (uint64_t), tx); | |
| 1230 | |
| 1544 | 1231 if (zap_add(spa->spa_meta_objset, |
| 789 | 1232 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CONFIG, |
| 1544 | 1233 sizeof (uint64_t), 1, &spa->spa_config_object, tx) != 0) { |
| 1234 cmn_err(CE_PANIC, "failed to add pool config"); | |
| 1235 } | |
| 789 | 1236 |
| 2082 | 1237 /* Newly created pools are always deflated. */ |
| 1238 spa->spa_deflate = TRUE; | |
| 1239 if (zap_add(spa->spa_meta_objset, | |
| 1240 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
| 1241 sizeof (uint64_t), 1, &spa->spa_deflate, tx) != 0) { | |
| 1242 cmn_err(CE_PANIC, "failed to add deflate"); | |
| 1243 } | |
| 1244 | |
| 789 | 1245 /* |
| 1246 * Create the deferred-free bplist object. Turn off compression | |
| 1247 * because sync-to-convergence takes longer if the blocksize | |
| 1248 * keeps changing. | |
| 1249 */ | |
| 1250 spa->spa_sync_bplist_obj = bplist_create(spa->spa_meta_objset, | |
| 1251 1 << 14, tx); | |
| 1252 dmu_object_set_compress(spa->spa_meta_objset, spa->spa_sync_bplist_obj, | |
| 1253 ZIO_COMPRESS_OFF, tx); | |
| 1254 | |
| 1544 | 1255 if (zap_add(spa->spa_meta_objset, |
| 789 | 1256 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SYNC_BPLIST, |
| 1544 | 1257 sizeof (uint64_t), 1, &spa->spa_sync_bplist_obj, tx) != 0) { |
| 1258 cmn_err(CE_PANIC, "failed to add bplist"); | |
| 1259 } | |
| 789 | 1260 |
| 2926 | 1261 /* |
| 1262 * Create the pool's history object. | |
| 1263 */ | |
| 1264 spa_history_create_obj(spa, tx); | |
| 1265 | |
| 789 | 1266 dmu_tx_commit(tx); |
| 1267 | |
| 4451 | 1268 spa->spa_bootfs = zpool_prop_default_numeric(ZPOOL_PROP_BOOTFS); |
| 4543 | 1269 spa->spa_delegation = zfs_prop_default_numeric(ZPOOL_PROP_DELEGATION); |
| 789 | 1270 spa->spa_sync_on = B_TRUE; |
| 1271 txg_sync_start(spa->spa_dsl_pool); | |
| 1272 | |
| 1273 /* | |
| 1274 * We explicitly wait for the first transaction to complete so that our | |
| 1275 * bean counters are appropriately updated. | |
| 1276 */ | |
| 1277 txg_wait_synced(spa->spa_dsl_pool, txg); | |
| 1278 | |
| 1279 spa_config_sync(); | |
| 1280 | |
|
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1281 if (history_str != NULL) |
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1282 (void) spa_history_log(spa, history_str, LOG_CMD_POOL_CREATE); |
|
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1283 |
| 789 | 1284 mutex_exit(&spa_namespace_lock); |
| 1285 | |
| 1286 return (0); | |
| 1287 } | |
| 1288 | |
| 1289 /* | |
| 1290 * Import the given pool into the system. We set up the necessary spa_t and | |
| 1291 * then call spa_load() to do the dirty work. | |
| 1292 */ | |
| 1293 int | |
|
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1294 spa_import(const char *pool, nvlist_t *config, const char *altroot) |
| 789 | 1295 { |
| 1296 spa_t *spa; | |
| 1297 int error; | |
| 2082 | 1298 nvlist_t *nvroot; |
| 1299 nvlist_t **spares; | |
| 1300 uint_t nspares; | |
| 789 | 1301 |
| 1302 /* | |
| 1303 * If a pool with this name exists, return failure. | |
| 1304 */ | |
| 1305 mutex_enter(&spa_namespace_lock); | |
| 1306 if (spa_lookup(pool) != NULL) { | |
| 1307 mutex_exit(&spa_namespace_lock); | |
| 1308 return (EEXIST); | |
| 1309 } | |
| 1310 | |
| 1311 /* | |
|
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1312 * Create and initialize the spa structure. |
| 789 | 1313 */ |
|
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1314 spa = spa_add(pool, altroot); |
| 789 | 1315 spa_activate(spa); |
| 1316 | |
| 1317 /* | |
|
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1318 * Pass off the heavy lifting to spa_load(). |
| 1732 | 1319 * Pass TRUE for mosconfig because the user-supplied config |
| 1320 * is actually the one to trust when doing an import. | |
|
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1321 */ |
| 1732 | 1322 error = spa_load(spa, config, SPA_LOAD_IMPORT, B_TRUE); |
| 789 | 1323 |
| 2082 | 1324 spa_config_enter(spa, RW_WRITER, FTAG); |
| 1325 /* | |
| 1326 * Toss any existing sparelist, as it doesn't have any validity anymore, | |
| 1327 * and conflicts with spa_has_spare(). | |
| 1328 */ | |
| 1329 if (spa->spa_sparelist) { | |
| 1330 nvlist_free(spa->spa_sparelist); | |
| 1331 spa->spa_sparelist = NULL; | |
| 1332 spa_load_spares(spa); | |
| 1333 } | |
| 1334 | |
| 1335 VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, | |
| 1336 &nvroot) == 0); | |
| 1337 if (error == 0) | |
| 1338 error = spa_validate_spares(spa, nvroot, -1ULL, | |
| 1339 VDEV_ALLOC_SPARE); | |
| 1340 spa_config_exit(spa, FTAG); | |
| 1341 | |
| 1342 if (error != 0) { | |
| 789 | 1343 spa_unload(spa); |
| 1344 spa_deactivate(spa); | |
| 1345 spa_remove(spa); | |
| 1346 mutex_exit(&spa_namespace_lock); | |
| 1347 return (error); | |
| 1348 } | |
| 1349 | |
|
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1350 /* |
| 2082 | 1351 * Override any spares as specified by the user, as these may have |
| 1352 * correct device names/devids, etc. | |
| 1353 */ | |
| 1354 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
| 1355 &spares, &nspares) == 0) { | |
| 1356 if (spa->spa_sparelist) | |
| 1357 VERIFY(nvlist_remove(spa->spa_sparelist, | |
| 1358 ZPOOL_CONFIG_SPARES, DATA_TYPE_NVLIST_ARRAY) == 0); | |
| 1359 else | |
| 1360 VERIFY(nvlist_alloc(&spa->spa_sparelist, | |
| 1361 NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
| 1362 VERIFY(nvlist_add_nvlist_array(spa->spa_sparelist, | |
| 1363 ZPOOL_CONFIG_SPARES, spares, nspares) == 0); | |
| 1364 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 1365 spa_load_spares(spa); | |
| 1366 spa_config_exit(spa, FTAG); | |
| 1367 spa->spa_sync_spares = B_TRUE; | |
| 1368 } | |
| 1369 | |
| 1370 /* | |
|
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1371 * Update the config cache to include the newly-imported pool. |
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1372 */ |
|
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1373 if (spa_mode & FWRITE) |
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1374 spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); |
|
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1375 |
| 789 | 1376 /* |
| 1377 * Resilver anything that's out of date. | |
| 1378 */ | |
| 1379 if (spa_mode & FWRITE) | |
| 1380 VERIFY(spa_scrub(spa, POOL_SCRUB_RESILVER, B_TRUE) == 0); | |
| 1381 | |
| 4451 | 1382 mutex_exit(&spa_namespace_lock); |
| 1383 | |
| 789 | 1384 return (0); |
| 1385 } | |
| 1386 | |
| 1387 /* | |
| 1388 * This (illegal) pool name is used when temporarily importing a spa_t in order | |
| 1389 * to get the vdev stats associated with the imported devices. | |
| 1390 */ | |
| 1391 #define TRYIMPORT_NAME "$import" | |
| 1392 | |
| 1393 nvlist_t * | |
| 1394 spa_tryimport(nvlist_t *tryconfig) | |
| 1395 { | |
| 1396 nvlist_t *config = NULL; | |
| 1397 char *poolname; | |
| 1398 spa_t *spa; | |
| 1399 uint64_t state; | |
| 1400 | |
| 1401 if (nvlist_lookup_string(tryconfig, ZPOOL_CONFIG_POOL_NAME, &poolname)) | |
| 1402 return (NULL); | |
| 1403 | |
| 1404 if (nvlist_lookup_uint64(tryconfig, ZPOOL_CONFIG_POOL_STATE, &state)) | |
| 1405 return (NULL); | |
| 1406 | |
|
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1407 /* |
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1408 * Create and initialize the spa structure. |
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1409 */ |
| 789 | 1410 mutex_enter(&spa_namespace_lock); |
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1411 spa = spa_add(TRYIMPORT_NAME, NULL); |
| 789 | 1412 spa_activate(spa); |
| 1413 | |
| 1414 /* | |
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1415 * Pass off the heavy lifting to spa_load(). |
| 1732 | 1416 * Pass TRUE for mosconfig because the user-supplied config |
| 1417 * is actually the one to trust when doing an import. | |
| 789 | 1418 */ |
| 1732 | 1419 (void) spa_load(spa, tryconfig, SPA_LOAD_TRYIMPORT, B_TRUE); |
| 789 | 1420 |
| 1421 /* | |
| 1422 * If 'tryconfig' was at least parsable, return the current config. | |
| 1423 */ | |
| 1424 if (spa->spa_root_vdev != NULL) { | |
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1425 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 1426 config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); |
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1427 spa_config_exit(spa, FTAG); |
| 789 | 1428 VERIFY(nvlist_add_string(config, ZPOOL_CONFIG_POOL_NAME, |
| 1429 poolname) == 0); | |
| 1430 VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_POOL_STATE, | |
| 1431 state) == 0); | |
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1432 VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_TIMESTAMP, |
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1433 spa->spa_uberblock.ub_timestamp) == 0); |
| 2082 | 1434 |
| 1435 /* | |
| 1436 * Add the list of hot spares. | |
| 1437 */ | |
| 1438 spa_add_spares(spa, config); | |
| 789 | 1439 } |
| 1440 | |
| 1441 spa_unload(spa); | |
| 1442 spa_deactivate(spa); | |
| 1443 spa_remove(spa); | |
| 1444 mutex_exit(&spa_namespace_lock); | |
| 1445 | |
| 1446 return (config); | |
| 1447 } | |
| 1448 | |
| 1449 /* | |
| 1450 * Pool export/destroy | |
| 1451 * | |
| 1452 * The act of destroying or exporting a pool is very simple. We make sure there | |
| 1453 * is no more pending I/O and any references to the pool are gone. Then, we | |
| 1454 * update the pool state and sync all the labels to disk, removing the | |
| 1455 * configuration from the cache afterwards. | |
| 1456 */ | |
| 1457 static int | |
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1458 spa_export_common(char *pool, int new_state, nvlist_t **oldconfig) |
| 789 | 1459 { |
| 1460 spa_t *spa; | |
| 1461 | |
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1462 if (oldconfig) |
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1463 *oldconfig = NULL; |
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1464 |
| 789 | 1465 if (!(spa_mode & FWRITE)) |
| 1466 return (EROFS); | |
| 1467 | |
| 1468 mutex_enter(&spa_namespace_lock); | |
| 1469 if ((spa = spa_lookup(pool)) == NULL) { | |
| 1470 mutex_exit(&spa_namespace_lock); | |
| 1471 return (ENOENT); | |
| 1472 } | |
| 1473 | |
| 1474 /* | |
| 1544 | 1475 * Put a hold on the pool, drop the namespace lock, stop async tasks, |
| 1476 * reacquire the namespace lock, and see if we can export. | |
| 1477 */ | |
| 1478 spa_open_ref(spa, FTAG); | |
| 1479 mutex_exit(&spa_namespace_lock); | |
| 1480 spa_async_suspend(spa); | |
| 1481 mutex_enter(&spa_namespace_lock); | |
| 1482 spa_close(spa, FTAG); | |
| 1483 | |
| 1484 /* | |
| 789 | 1485 * The pool will be in core if it's openable, |
| 1486 * in which case we can modify its state. | |
| 1487 */ | |
| 1488 if (spa->spa_state != POOL_STATE_UNINITIALIZED && spa->spa_sync_on) { | |
| 1489 /* | |
| 1490 * Objsets may be open only because they're dirty, so we | |
| 1491 * have to force it to sync before checking spa_refcnt. | |
| 1492 */ | |
| 1493 spa_scrub_suspend(spa); | |
| 1494 txg_wait_synced(spa->spa_dsl_pool, 0); | |
| 1495 | |
| 1544 | 1496 /* |
| 1497 * A pool cannot be exported or destroyed if there are active | |
| 1498 * references. If we are resetting a pool, allow references by | |
| 1499 * fault injection handlers. | |
| 1500 */ | |
| 1501 if (!spa_refcount_zero(spa) || | |
| 1502 (spa->spa_inject_ref != 0 && | |
| 1503 new_state != POOL_STATE_UNINITIALIZED)) { | |
| 789 | 1504 spa_scrub_resume(spa); |
| 1544 | 1505 spa_async_resume(spa); |
| 789 | 1506 mutex_exit(&spa_namespace_lock); |
| 1507 return (EBUSY); | |
| 1508 } | |
| 1509 | |
| 1510 spa_scrub_resume(spa); | |
| 1511 VERIFY(spa_scrub(spa, POOL_SCRUB_NONE, B_TRUE) == 0); | |
| 1512 | |
| 1513 /* | |
| 1514 * We want this to be reflected on every label, | |
| 1515 * so mark them all dirty. spa_unload() will do the | |
| 1516 * final sync that pushes these changes out. | |
| 1517 */ | |
| 1544 | 1518 if (new_state != POOL_STATE_UNINITIALIZED) { |
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1519 spa_config_enter(spa, RW_WRITER, FTAG); |
| 1544 | 1520 spa->spa_state = new_state; |
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1521 spa->spa_final_txg = spa_last_synced_txg(spa) + 1; |
| 1544 | 1522 vdev_config_dirty(spa->spa_root_vdev); |
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1523 spa_config_exit(spa, FTAG); |
| 1544 | 1524 } |
| 789 | 1525 } |
| 1526 | |
| 4451 | 1527 spa_event_notify(spa, NULL, ESC_ZFS_POOL_DESTROY); |
| 1528 | |
| 789 | 1529 if (spa->spa_state != POOL_STATE_UNINITIALIZED) { |
| 1530 spa_unload(spa); | |
| 1531 spa_deactivate(spa); | |
| 1532 } | |
| 1533 | |
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1534 if (oldconfig && spa->spa_config) |
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1535 VERIFY(nvlist_dup(spa->spa_config, oldconfig, 0) == 0); |
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1536 |
| 1544 | 1537 if (new_state != POOL_STATE_UNINITIALIZED) { |
| 1538 spa_remove(spa); | |
| 1539 spa_config_sync(); | |
| 1540 } | |
| 789 | 1541 mutex_exit(&spa_namespace_lock); |
| 1542 | |
| 1543 return (0); | |
| 1544 } | |
| 1545 | |
| 1546 /* | |
| 1547 * Destroy a storage pool. | |
| 1548 */ | |
| 1549 int | |
| 1550 spa_destroy(char *pool) | |
| 1551 { | |
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1552 return (spa_export_common(pool, POOL_STATE_DESTROYED, NULL)); |
| 789 | 1553 } |
| 1554 | |
| 1555 /* | |
| 1556 * Export a storage pool. | |
| 1557 */ | |
| 1558 int | |
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1559 spa_export(char *pool, nvlist_t **oldconfig) |
| 789 | 1560 { |
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1561 return (spa_export_common(pool, POOL_STATE_EXPORTED, oldconfig)); |
| 789 | 1562 } |
| 1563 | |
| 1564 /* | |
| 1544 | 1565 * Similar to spa_export(), this unloads the spa_t without actually removing it |
| 1566 * from the namespace in any way. | |
| 1567 */ | |
| 1568 int | |
| 1569 spa_reset(char *pool) | |
| 1570 { | |
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1571 return (spa_export_common(pool, POOL_STATE_UNINITIALIZED, NULL)); |
| 1544 | 1572 } |
| 1573 | |
| 1574 | |
| 1575 /* | |
| 789 | 1576 * ========================================================================== |
| 1577 * Device manipulation | |
| 1578 * ========================================================================== | |
| 1579 */ | |
| 1580 | |
| 1581 /* | |
| 4527 | 1582 * Add a device to a storage pool. |
| 789 | 1583 */ |
| 1584 int | |
| 1585 spa_vdev_add(spa_t *spa, nvlist_t *nvroot) | |
| 1586 { | |
| 1587 uint64_t txg; | |
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1588 int c, error; |
| 789 | 1589 vdev_t *rvd = spa->spa_root_vdev; |
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1590 vdev_t *vd, *tvd; |
| 2082 | 1591 nvlist_t **spares; |
| 1592 uint_t i, nspares; | |
| 789 | 1593 |
| 1594 txg = spa_vdev_enter(spa); | |
| 1595 | |
| 2082 | 1596 if ((error = spa_config_parse(spa, &vd, nvroot, NULL, 0, |
| 1597 VDEV_ALLOC_ADD)) != 0) | |
| 1598 return (spa_vdev_exit(spa, NULL, txg, error)); | |
| 1599 | |
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1600 spa->spa_pending_vdev = vd; |
| 789 | 1601 |
| 2082 | 1602 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, |
| 1603 &spares, &nspares) != 0) | |
| 1604 nspares = 0; | |
| 1605 | |
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1606 if (vd->vdev_children == 0 && nspares == 0) { |
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1607 spa->spa_pending_vdev = NULL; |
| 2082 | 1608 return (spa_vdev_exit(spa, vd, txg, EINVAL)); |
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1609 } |
| 2082 | 1610 |
| 1611 if (vd->vdev_children != 0) { | |
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1612 if ((error = vdev_create(vd, txg, B_FALSE)) != 0) { |
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1613 spa->spa_pending_vdev = NULL; |
| 2082 | 1614 return (spa_vdev_exit(spa, vd, txg, error)); |
| 1615 } | |
| 1616 } | |
| 1617 | |
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1618 /* |
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1619 * We must validate the spares after checking the children. Otherwise, |
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1620 * vdev_inuse() will blindly overwrite the spare. |
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1621 */ |
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1622 if ((error = spa_validate_spares(spa, nvroot, txg, |
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1623 VDEV_ALLOC_ADD)) != 0) { |
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1624 spa->spa_pending_vdev = NULL; |
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1625 return (spa_vdev_exit(spa, vd, txg, error)); |
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1626 } |
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1627 |
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1628 spa->spa_pending_vdev = NULL; |
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1629 |
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1630 /* |
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1631 * Transfer each new top-level vdev from vd to rvd. |
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1632 */ |
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1633 for (c = 0; c < vd->vdev_children; c++) { |
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1634 tvd = vd->vdev_child[c]; |
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1635 vdev_remove_child(vd, tvd); |
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1636 tvd->vdev_id = rvd->vdev_children; |
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1637 vdev_add_child(rvd, tvd); |
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1638 vdev_config_dirty(tvd); |
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1639 } |
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1640 |
| 2082 | 1641 if (nspares != 0) { |
| 1642 if (spa->spa_sparelist != NULL) { | |
| 1643 nvlist_t **oldspares; | |
| 1644 uint_t oldnspares; | |
| 1645 nvlist_t **newspares; | |
| 1646 | |
| 1647 VERIFY(nvlist_lookup_nvlist_array(spa->spa_sparelist, | |
| 1648 ZPOOL_CONFIG_SPARES, &oldspares, &oldnspares) == 0); | |
| 1649 | |
| 1650 newspares = kmem_alloc(sizeof (void *) * | |
| 1651 (nspares + oldnspares), KM_SLEEP); | |
| 1652 for (i = 0; i < oldnspares; i++) | |
| 1653 VERIFY(nvlist_dup(oldspares[i], | |
| 1654 &newspares[i], KM_SLEEP) == 0); | |
| 1655 for (i = 0; i < nspares; i++) | |
| 1656 VERIFY(nvlist_dup(spares[i], | |
| 1657 &newspares[i + oldnspares], | |
| 1658 KM_SLEEP) == 0); | |
| 1659 | |
| 1660 VERIFY(nvlist_remove(spa->spa_sparelist, | |
| 1661 ZPOOL_CONFIG_SPARES, DATA_TYPE_NVLIST_ARRAY) == 0); | |
| 1662 | |
| 1663 VERIFY(nvlist_add_nvlist_array(spa->spa_sparelist, | |
| 1664 ZPOOL_CONFIG_SPARES, newspares, | |
| 1665 nspares + oldnspares) == 0); | |
| 1666 for (i = 0; i < oldnspares + nspares; i++) | |
| 1667 nvlist_free(newspares[i]); | |
| 1668 kmem_free(newspares, (oldnspares + nspares) * | |
| 1669 sizeof (void *)); | |
| 1670 } else { | |
| 1671 VERIFY(nvlist_alloc(&spa->spa_sparelist, | |
| 1672 NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
| 1673 VERIFY(nvlist_add_nvlist_array(spa->spa_sparelist, | |
| 1674 ZPOOL_CONFIG_SPARES, spares, nspares) == 0); | |
| 1675 } | |
| 1676 | |
| 1677 spa_load_spares(spa); | |
| 1678 spa->spa_sync_spares = B_TRUE; | |
| 789 | 1679 } |
| 1680 | |
| 1681 /* | |
|
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1682 * We have to be careful when adding new vdevs to an existing pool. |
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1683 * If other threads start allocating from these vdevs before we |
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1684 * sync the config cache, and we lose power, then upon reboot we may |
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1685 * fail to open the pool because there are DVAs that the config cache |
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1686 * can't translate. Therefore, we first add the vdevs without |
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1687 * initializing metaslabs; sync the config cache (via spa_vdev_exit()); |
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1688 * and then let spa_config_update() initialize the new metaslabs. |
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1689 * |
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1690 * spa_load() checks for added-but-not-initialized vdevs, so that |
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1691 * if we lose power at any point in this sequence, the remaining |
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1692 * steps will be completed the next time we load the pool. |
| 789 | 1693 */ |
|
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1694 (void) spa_vdev_exit(spa, vd, txg, 0); |
|
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1695 |
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1696 mutex_enter(&spa_namespace_lock); |
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1697 spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); |
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1698 mutex_exit(&spa_namespace_lock); |
| 789 | 1699 |
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1700 return (0); |
| 789 | 1701 } |
| 1702 | |
| 1703 /* | |
| 1704 * Attach a device to a mirror. The arguments are the path to any device | |
| 1705 * in the mirror, and the nvroot for the new device. If the path specifies | |
| 1706 * a device that is not mirrored, we automatically insert the mirror vdev. | |
| 1707 * | |
| 1708 * If 'replacing' is specified, the new device is intended to replace the | |
| 1709 * existing device; in this case the two devices are made into their own | |
| 4451 | 1710 * mirror using the 'replacing' vdev, which is functionally identical to |
| 789 | 1711 * the mirror vdev (it actually reuses all the same ops) but has a few |
| 1712 * extra rules: you can't attach to it after it's been created, and upon | |
| 1713 * completion of resilvering, the first disk (the one being replaced) | |
| 1714 * is automatically detached. | |
| 1715 */ | |
| 1716 int | |
| 1544 | 1717 spa_vdev_attach(spa_t *spa, uint64_t guid, nvlist_t *nvroot, int replacing) |
| 789 | 1718 { |
| 1719 uint64_t txg, open_txg; | |
| 1720 int error; | |
| 1721 vdev_t *rvd = spa->spa_root_vdev; | |
| 1722 vdev_t *oldvd, *newvd, *newrootvd, *pvd, *tvd; | |
| 2082 | 1723 vdev_ops_t *pvops; |
| 4527 | 1724 int is_log; |
| 789 | 1725 |
| 1726 txg = spa_vdev_enter(spa); | |
| 1727 | |
| 1544 | 1728 oldvd = vdev_lookup_by_guid(rvd, guid); |
| 789 | 1729 |
| 1730 if (oldvd == NULL) | |
| 1731 return (spa_vdev_exit(spa, NULL, txg, ENODEV)); | |
| 1732 | |
|
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1733 if (!oldvd->vdev_ops->vdev_op_leaf) |
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1734 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
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1735 |
| 789 | 1736 pvd = oldvd->vdev_parent; |
| 1737 | |
| 2082 | 1738 if ((error = spa_config_parse(spa, &newrootvd, nvroot, NULL, 0, |
| 4451 | 1739 VDEV_ALLOC_ADD)) != 0) |
| 1740 return (spa_vdev_exit(spa, NULL, txg, EINVAL)); | |
| 1741 | |
| 1742 if (newrootvd->vdev_children != 1) | |
| 789 | 1743 return (spa_vdev_exit(spa, newrootvd, txg, EINVAL)); |
| 1744 | |
| 1745 newvd = newrootvd->vdev_child[0]; | |
| 1746 | |
| 1747 if (!newvd->vdev_ops->vdev_op_leaf) | |
| 1748 return (spa_vdev_exit(spa, newrootvd, txg, EINVAL)); | |
| 1749 | |
| 2082 | 1750 if ((error = vdev_create(newrootvd, txg, replacing)) != 0) |
| 789 | 1751 return (spa_vdev_exit(spa, newrootvd, txg, error)); |
| 1752 | |
| 4527 | 1753 /* |
| 1754 * Spares can't replace logs | |
| 1755 */ | |
| 1756 is_log = oldvd->vdev_islog; | |
| 1757 if (is_log && newvd->vdev_isspare) | |
| 1758 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
| 1759 | |
| 2082 | 1760 if (!replacing) { |
| 1761 /* | |
| 1762 * For attach, the only allowable parent is a mirror or the root | |
| 1763 * vdev. | |
| 1764 */ | |
| 1765 if (pvd->vdev_ops != &vdev_mirror_ops && | |
| 1766 pvd->vdev_ops != &vdev_root_ops) | |
| 1767 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
| 1768 | |
| 1769 pvops = &vdev_mirror_ops; | |
| 1770 } else { | |
| 1771 /* | |
| 1772 * Active hot spares can only be replaced by inactive hot | |
| 1773 * spares. | |
| 1774 */ | |
| 1775 if (pvd->vdev_ops == &vdev_spare_ops && | |
| 1776 pvd->vdev_child[1] == oldvd && | |
| 1777 !spa_has_spare(spa, newvd->vdev_guid)) | |
| 1778 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
| 1779 | |
| 1780 /* | |
| 1781 * If the source is a hot spare, and the parent isn't already a | |
| 1782 * spare, then we want to create a new hot spare. Otherwise, we | |
|
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1783 * want to create a replacing vdev. The user is not allowed to |
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1784 * attach to a spared vdev child unless the 'isspare' state is |
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1785 * the same (spare replaces spare, non-spare replaces |
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1786 * non-spare). |
| 2082 | 1787 */ |
| 1788 if (pvd->vdev_ops == &vdev_replacing_ops) | |
| 1789 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
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1790 else if (pvd->vdev_ops == &vdev_spare_ops && |
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1791 newvd->vdev_isspare != oldvd->vdev_isspare) |
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1792 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
| 2082 | 1793 else if (pvd->vdev_ops != &vdev_spare_ops && |
| 1794 newvd->vdev_isspare) | |
| 1795 pvops = &vdev_spare_ops; | |
| 1796 else | |
| 1797 pvops = &vdev_replacing_ops; | |
| 1798 } | |
| 1799 | |
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1800 /* |
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1801 * Compare the new device size with the replaceable/attachable |
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1802 * device size. |
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1803 */ |
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1804 if (newvd->vdev_psize < vdev_get_rsize(oldvd)) |
| 789 | 1805 return (spa_vdev_exit(spa, newrootvd, txg, EOVERFLOW)); |
| 1806 | |
| 1732 | 1807 /* |
| 1808 * The new device cannot have a higher alignment requirement | |
| 1809 * than the top-level vdev. | |
| 1810 */ | |
| 1811 if (newvd->vdev_ashift > oldvd->vdev_top->vdev_ashift) | |
| 789 | 1812 return (spa_vdev_exit(spa, newrootvd, txg, EDOM)); |
| 1813 | |
| 1814 /* | |
| 1815 * If this is an in-place replacement, update oldvd's path and devid | |
| 1816 * to make it distinguishable from newvd, and unopenable from now on. | |
| 1817 */ | |
| 1818 if (strcmp(oldvd->vdev_path, newvd->vdev_path) == 0) { | |
| 1819 spa_strfree(oldvd->vdev_path); | |
| 1820 oldvd->vdev_path = kmem_alloc(strlen(newvd->vdev_path) + 5, | |
| 1821 KM_SLEEP); | |
| 1822 (void) sprintf(oldvd->vdev_path, "%s/%s", | |
| 1823 newvd->vdev_path, "old"); | |
| 1824 if (oldvd->vdev_devid != NULL) { | |
| 1825 spa_strfree(oldvd->vdev_devid); | |
| 1826 oldvd->vdev_devid = NULL; | |
| 1827 } | |
| 1828 } | |
| 1829 | |
| 1830 /* | |
| 2082 | 1831 * If the parent is not a mirror, or if we're replacing, insert the new |
| 1832 * mirror/replacing/spare vdev above oldvd. | |
| 789 | 1833 */ |
| 1834 if (pvd->vdev_ops != pvops) | |
| 1835 pvd = vdev_add_parent(oldvd, pvops); | |
| 1836 | |
| 1837 ASSERT(pvd->vdev_top->vdev_parent == rvd); | |
| 1838 ASSERT(pvd->vdev_ops == pvops); | |
| 1839 ASSERT(oldvd->vdev_parent == pvd); | |
| 1840 | |
| 1841 /* | |
| 1842 * Extract the new device from its root and add it to pvd. | |
| 1843 */ | |
| 1844 vdev_remove_child(newrootvd, newvd); | |
| 1845 newvd->vdev_id = pvd->vdev_children; | |
| 1846 vdev_add_child(pvd, newvd); | |
| 1847 | |
| 1544 | 1848 /* |
| 1849 * If newvd is smaller than oldvd, but larger than its rsize, | |
| 1850 * the addition of newvd may have decreased our parent's asize. | |
| 1851 */ | |
| 1852 pvd->vdev_asize = MIN(pvd->vdev_asize, newvd->vdev_asize); | |
| 1853 | |
| 789 | 1854 tvd = newvd->vdev_top; |
| 1855 ASSERT(pvd->vdev_top == tvd); | |
| 1856 ASSERT(tvd->vdev_parent == rvd); | |
| 1857 | |
| 1858 vdev_config_dirty(tvd); | |
| 1859 | |
| 1860 /* | |
| 1861 * Set newvd's DTL to [TXG_INITIAL, open_txg]. It will propagate | |
| 1862 * upward when spa_vdev_exit() calls vdev_dtl_reassess(). | |
| 1863 */ | |
| 1864 open_txg = txg + TXG_CONCURRENT_STATES - 1; | |
| 1865 | |
| 1866 mutex_enter(&newvd->vdev_dtl_lock); | |
| 1867 space_map_add(&newvd->vdev_dtl_map, TXG_INITIAL, | |
| 1868 open_txg - TXG_INITIAL + 1); | |
| 1869 mutex_exit(&newvd->vdev_dtl_lock); | |
| 1870 | |
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1871 if (newvd->vdev_isspare) |
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1872 spa_spare_activate(newvd); |
| 1544 | 1873 |
| 789 | 1874 /* |
| 1875 * Mark newvd's DTL dirty in this txg. | |
| 1876 */ | |
| 1732 | 1877 vdev_dirty(tvd, VDD_DTL, newvd, txg); |
| 789 | 1878 |
| 1879 (void) spa_vdev_exit(spa, newrootvd, open_txg, 0); | |
| 1880 | |
| 1881 /* | |
| 4451 | 1882 * Kick off a resilver to update newvd. We need to grab the namespace |
| 1883 * lock because spa_scrub() needs to post a sysevent with the pool name. | |
| 789 | 1884 */ |
| 4451 | 1885 mutex_enter(&spa_namespace_lock); |
| 789 | 1886 VERIFY(spa_scrub(spa, POOL_SCRUB_RESILVER, B_TRUE) == 0); |
| 4451 | 1887 mutex_exit(&spa_namespace_lock); |
| 789 | 1888 |
| 1889 return (0); | |
| 1890 } | |
| 1891 | |
| 1892 /* | |
| 1893 * Detach a device from a mirror or replacing vdev. | |
| 1894 * If 'replace_done' is specified, only detach if the parent | |
| 1895 * is a replacing vdev. | |
| 1896 */ | |
| 1897 int | |
| 1544 | 1898 spa_vdev_detach(spa_t *spa, uint64_t guid, int replace_done) |
| 789 | 1899 { |
| 1900 uint64_t txg; | |
| 1901 int c, t, error; | |
| 1902 vdev_t *rvd = spa->spa_root_vdev; | |
| 1903 vdev_t *vd, *pvd, *cvd, *tvd; | |
| 2082 | 1904 boolean_t unspare = B_FALSE; |
| 1905 uint64_t unspare_guid; | |
| 789 | 1906 |
| 1907 txg = spa_vdev_enter(spa); | |
| 1908 | |
| 1544 | 1909 vd = vdev_lookup_by_guid(rvd, guid); |
| 789 | 1910 |
| 1911 if (vd == NULL) | |
| 1912 return (spa_vdev_exit(spa, NULL, txg, ENODEV)); | |
| 1913 | |
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1914 if (!vd->vdev_ops->vdev_op_leaf) |
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1915 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
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1916 |
| 789 | 1917 pvd = vd->vdev_parent; |
| 1918 | |
| 1919 /* | |
| 1920 * If replace_done is specified, only remove this device if it's | |
| 2082 | 1921 * the first child of a replacing vdev. For the 'spare' vdev, either |
| 1922 * disk can be removed. | |
| 789 | 1923 */ |
| 2082 | 1924 if (replace_done) { |
| 1925 if (pvd->vdev_ops == &vdev_replacing_ops) { | |
| 1926 if (vd->vdev_id != 0) | |
| 1927 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
| 1928 } else if (pvd->vdev_ops != &vdev_spare_ops) { | |
| 1929 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
| 1930 } | |
| 1931 } | |
| 1932 | |
| 1933 ASSERT(pvd->vdev_ops != &vdev_spare_ops || | |
| 4577 | 1934 spa_version(spa) >= SPA_VERSION_SPARES); |
| 789 | 1935 |
| 1936 /* | |
| 2082 | 1937 * Only mirror, replacing, and spare vdevs support detach. |
| 789 | 1938 */ |
| 1939 if (pvd->vdev_ops != &vdev_replacing_ops && | |
| 2082 | 1940 pvd->vdev_ops != &vdev_mirror_ops && |
| 1941 pvd->vdev_ops != &vdev_spare_ops) | |
| 789 | 1942 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
| 1943 | |
| 1944 /* | |
| 1945 * If there's only one replica, you can't detach it. | |
| 1946 */ | |
| 1947 if (pvd->vdev_children <= 1) | |
| 1948 return (spa_vdev_exit(spa, NULL, txg, EBUSY)); | |
| 1949 | |
| 1950 /* | |
| 1951 * If all siblings have non-empty DTLs, this device may have the only | |
| 1952 * valid copy of the data, which means we cannot safely detach it. | |
| 1953 * | |
| 1954 * XXX -- as in the vdev_offline() case, we really want a more | |
| 1955 * precise DTL check. | |
| 1956 */ | |
| 1957 for (c = 0; c < pvd->vdev_children; c++) { | |
| 1958 uint64_t dirty; | |
| 1959 | |
| 1960 cvd = pvd->vdev_child[c]; | |
| 1961 if (cvd == vd) | |
| 1962 continue; | |
| 1963 if (vdev_is_dead(cvd)) | |
| 1964 continue; | |
| 1965 mutex_enter(&cvd->vdev_dtl_lock); | |
| 1966 dirty = cvd->vdev_dtl_map.sm_space | | |
| 1967 cvd->vdev_dtl_scrub.sm_space; | |
| 1968 mutex_exit(&cvd->vdev_dtl_lock); | |
| 1969 if (!dirty) | |
| 1970 break; | |
| 1971 } | |
| 2082 | 1972 |
| 1973 /* | |
| 1974 * If we are a replacing or spare vdev, then we can always detach the | |
| 1975 * latter child, as that is how one cancels the operation. | |
| 1976 */ | |
| 1977 if ((pvd->vdev_ops == &vdev_mirror_ops || vd->vdev_id != 1) && | |
| 1978 c == pvd->vdev_children) | |
| 789 | 1979 return (spa_vdev_exit(spa, NULL, txg, EBUSY)); |
| 1980 | |
| 1981 /* | |
| 2082 | 1982 * If we are detaching the original disk from a spare, then it implies |
| 1983 * that the spare should become a real disk, and be removed from the | |
| 1984 * active spare list for the pool. | |
| 1985 */ | |
| 1986 if (pvd->vdev_ops == &vdev_spare_ops && | |
| 1987 vd->vdev_id == 0) | |
| 1988 unspare = B_TRUE; | |
| 1989 | |
| 1990 /* | |
| 789 | 1991 * Erase the disk labels so the disk can be used for other things. |
| 1992 * This must be done after all other error cases are handled, | |
| 1993 * but before we disembowel vd (so we can still do I/O to it). | |
| 1994 * But if we can't do it, don't treat the error as fatal -- | |
| 1995 * it may be that the unwritability of the disk is the reason | |
| 1996 * it's being detached! | |
| 1997 */ | |
|
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1998 error = vdev_label_init(vd, 0, VDEV_LABEL_REMOVE); |
| 789 | 1999 |
| 2000 /* | |
| 2001 * Remove vd from its parent and compact the parent's children. | |
| 2002 */ | |
| 2003 vdev_remove_child(pvd, vd); | |
| 2004 vdev_compact_children(pvd); | |
| 2005 | |
| 2006 /* | |
| 2007 * Remember one of the remaining children so we can get tvd below. | |
| 2008 */ | |
| 2009 cvd = pvd->vdev_child[0]; | |
| 2010 | |
| 2011 /* | |
| 2082 | 2012 * If we need to remove the remaining child from the list of hot spares, |
| 2013 * do it now, marking the vdev as no longer a spare in the process. We | |
| 2014 * must do this before vdev_remove_parent(), because that can change the | |
| 2015 * GUID if it creates a new toplevel GUID. | |
| 2016 */ | |
| 2017 if (unspare) { | |
| 2018 ASSERT(cvd->vdev_isspare); | |
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2019 spa_spare_remove(cvd); |
| 2082 | 2020 unspare_guid = cvd->vdev_guid; |
| 2021 } | |
| 2022 | |
| 2023 /* | |
| 789 | 2024 * If the parent mirror/replacing vdev only has one child, |
| 2025 * the parent is no longer needed. Remove it from the tree. | |
| 2026 */ | |
| 2027 if (pvd->vdev_children == 1) | |
| 2028 vdev_remove_parent(cvd); | |
| 2029 | |
| 2030 /* | |
| 2031 * We don't set tvd until now because the parent we just removed | |
| 2032 * may have been the previous top-level vdev. | |
| 2033 */ | |
| 2034 tvd = cvd->vdev_top; | |
| 2035 ASSERT(tvd->vdev_parent == rvd); | |
| 2036 | |
| 2037 /* | |
|
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2038 * Reevaluate the parent vdev state. |
| 789 | 2039 */ |
| 4451 | 2040 vdev_propagate_state(cvd); |
| 789 | 2041 |
| 2042 /* | |
|
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2043 * If the device we just detached was smaller than the others, it may be |
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2044 * possible to add metaslabs (i.e. grow the pool). vdev_metaslab_init() |
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2045 * can't fail because the existing metaslabs are already in core, so |
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2046 * there's nothing to read from disk. |
| 789 | 2047 */ |
| 1732 | 2048 VERIFY(vdev_metaslab_init(tvd, txg) == 0); |
| 789 | 2049 |
| 2050 vdev_config_dirty(tvd); | |
| 2051 | |
| 2052 /* | |
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2053 * Mark vd's DTL as dirty in this txg. vdev_dtl_sync() will see that |
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2054 * vd->vdev_detached is set and free vd's DTL object in syncing context. |
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2055 * But first make sure we're not on any *other* txg's DTL list, to |
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2056 * prevent vd from being accessed after it's freed. |
| 789 | 2057 */ |
| 2058 for (t = 0; t < TXG_SIZE; t++) | |
| 2059 (void) txg_list_remove_this(&tvd->vdev_dtl_list, vd, t); | |
| 1732 | 2060 vd->vdev_detached = B_TRUE; |
| 2061 vdev_dirty(tvd, VDD_DTL, vd, txg); | |
| 789 | 2062 |
| 4451 | 2063 spa_event_notify(spa, vd, ESC_ZFS_VDEV_REMOVE); |
| 2064 | |
| 2082 | 2065 error = spa_vdev_exit(spa, vd, txg, 0); |
| 2066 | |
| 2067 /* | |
|
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2068 * If this was the removal of the original device in a hot spare vdev, |
|
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2069 * then we want to go through and remove the device from the hot spare |
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|
2070 * list of every other pool. |
| 2082 | 2071 */ |
| 2072 if (unspare) { | |
| 2073 spa = NULL; | |
| 2074 mutex_enter(&spa_namespace_lock); | |
| 2075 while ((spa = spa_next(spa)) != NULL) { | |
| 2076 if (spa->spa_state != POOL_STATE_ACTIVE) | |
| 2077 continue; | |
| 2078 | |
| 2079 (void) spa_vdev_remove(spa, unspare_guid, B_TRUE); | |
| 2080 } | |
| 2081 mutex_exit(&spa_namespace_lock); | |
| 2082 } | |
| 2083 | |
| 2084 return (error); | |
| 2085 } | |
| 2086 | |
| 2087 /* | |
| 2088 * Remove a device from the pool. Currently, this supports removing only hot | |
| 2089 * spares. | |
| 2090 */ | |
| 2091 int | |
| 2092 spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare) | |
| 2093 { | |
| 2094 vdev_t *vd; | |
| 2095 nvlist_t **spares, *nv, **newspares; | |
| 2096 uint_t i, j, nspares; | |
| 2097 int ret = 0; | |
| 2098 | |
| 2099 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 2100 | |
| 2101 vd = spa_lookup_by_guid(spa, guid); | |
| 2102 | |
| 2103 nv = NULL; | |
| 2104 if (spa->spa_spares != NULL && | |
| 2105 nvlist_lookup_nvlist_array(spa->spa_sparelist, ZPOOL_CONFIG_SPARES, | |
| 2106 &spares, &nspares) == 0) { | |
| 2107 for (i = 0; i < nspares; i++) { | |
| 2108 uint64_t theguid; | |
| 2109 | |
| 2110 VERIFY(nvlist_lookup_uint64(spares[i], | |
| 2111 ZPOOL_CONFIG_GUID, &theguid) == 0); | |
| 2112 if (theguid == guid) { | |
| 2113 nv = spares[i]; | |
| 2114 break; | |
| 2115 } | |
| 2116 } | |
| 2117 } | |
| 2118 | |
| 2119 /* | |
| 2120 * We only support removing a hot spare, and only if it's not currently | |
| 2121 * in use in this pool. | |
| 2122 */ | |
| 2123 if (nv == NULL && vd == NULL) { | |
| 2124 ret = ENOENT; | |
| 2125 goto out; | |
| 2126 } | |
| 2127 | |
| 2128 if (nv == NULL && vd != NULL) { | |
| 2129 ret = ENOTSUP; | |
| 2130 goto out; | |
| 2131 } | |
| 2132 | |
| 2133 if (!unspare && nv != NULL && vd != NULL) { | |
| 2134 ret = EBUSY; | |
| 2135 goto out; | |
| 2136 } | |
| 2137 | |
| 2138 if (nspares == 1) { | |
| 2139 newspares = NULL; | |
| 2140 } else { | |
| 2141 newspares = kmem_alloc((nspares - 1) * sizeof (void *), | |
| 2142 KM_SLEEP); | |
| 2143 for (i = 0, j = 0; i < nspares; i++) { | |
| 2144 if (spares[i] != nv) | |
| 2145 VERIFY(nvlist_dup(spares[i], | |
| 2146 &newspares[j++], KM_SLEEP) == 0); | |
| 2147 } | |
| 2148 } | |
| 2149 | |
| 2150 VERIFY(nvlist_remove(spa->spa_sparelist, ZPOOL_CONFIG_SPARES, | |
| 2151 DATA_TYPE_NVLIST_ARRAY) == 0); | |
| 2152 VERIFY(nvlist_add_nvlist_array(spa->spa_sparelist, ZPOOL_CONFIG_SPARES, | |
| 2153 newspares, nspares - 1) == 0); | |
| 2154 for (i = 0; i < nspares - 1; i++) | |
| 2155 nvlist_free(newspares[i]); | |
| 2156 kmem_free(newspares, (nspares - 1) * sizeof (void *)); | |
| 2157 spa_load_spares(spa); | |
| 2158 spa->spa_sync_spares = B_TRUE; | |
| 2159 | |
| 2160 out: | |
| 2161 spa_config_exit(spa, FTAG); | |
| 2162 | |
| 2163 return (ret); | |
| 789 | 2164 } |
| 2165 | |
| 2166 /* | |
| 4451 | 2167 * Find any device that's done replacing, or a vdev marked 'unspare' that's |
| 2168 * current spared, so we can detach it. | |
| 789 | 2169 */ |
| 1544 | 2170 static vdev_t * |
| 4451 | 2171 spa_vdev_resilver_done_hunt(vdev_t *vd) |
| 789 | 2172 { |
| 1544 | 2173 vdev_t *newvd, *oldvd; |
| 789 | 2174 int c; |
| 2175 | |
| 1544 | 2176 for (c = 0; c < vd->vdev_children; c++) { |
| 4451 | 2177 oldvd = spa_vdev_resilver_done_hunt(vd->vdev_child[c]); |
| 1544 | 2178 if (oldvd != NULL) |
| 2179 return (oldvd); | |
| 2180 } | |
| 789 | 2181 |
| 4451 | 2182 /* |
| 2183 * Check for a completed replacement. | |
| 2184 */ | |
| 789 | 2185 if (vd->vdev_ops == &vdev_replacing_ops && vd->vdev_children == 2) { |
| 1544 | 2186 oldvd = vd->vdev_child[0]; |
| 2187 newvd = vd->vdev_child[1]; | |
| 789 | 2188 |
| 1544 | 2189 mutex_enter(&newvd->vdev_dtl_lock); |
| 2190 if (newvd->vdev_dtl_map.sm_space == 0 && | |
| 2191 newvd->vdev_dtl_scrub.sm_space == 0) { | |
| 2192 mutex_exit(&newvd->vdev_dtl_lock); | |
| 2193 return (oldvd); | |
| 2194 } | |
| 2195 mutex_exit(&newvd->vdev_dtl_lock); | |
| 2196 } | |
| 789 | 2197 |
| 4451 | 2198 /* |
| 2199 * Check for a completed resilver with the 'unspare' flag set. | |
| 2200 */ | |
| 2201 if (vd->vdev_ops == &vdev_spare_ops && vd->vdev_children == 2) { | |
| 2202 newvd = vd->vdev_child[0]; | |
| 2203 oldvd = vd->vdev_child[1]; | |
| 2204 | |
| 2205 mutex_enter(&newvd->vdev_dtl_lock); | |
| 2206 if (newvd->vdev_unspare && | |
| 2207 newvd->vdev_dtl_map.sm_space == 0 && | |
| 2208 newvd->vdev_dtl_scrub.sm_space == 0) { | |
| 2209 newvd->vdev_unspare = 0; | |
| 2210 mutex_exit(&newvd->vdev_dtl_lock); | |
| 2211 return (oldvd); | |
| 2212 } | |
| 2213 mutex_exit(&newvd->vdev_dtl_lock); | |
| 2214 } | |
| 2215 | |
| 1544 | 2216 return (NULL); |
| 789 | 2217 } |
| 2218 | |
| 1544 | 2219 static void |
| 4451 | 2220 spa_vdev_resilver_done(spa_t *spa) |
| 789 | 2221 { |
| 1544 | 2222 vdev_t *vd; |
| 2082 | 2223 vdev_t *pvd; |
| 1544 | 2224 uint64_t guid; |
| 2082 | 2225 uint64_t pguid = 0; |
| 789 | 2226 |
| 1544 | 2227 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 2228 |
| 4451 | 2229 while ((vd = spa_vdev_resilver_done_hunt(spa->spa_root_vdev)) != NULL) { |
| 1544 | 2230 guid = vd->vdev_guid; |
| 2082 | 2231 /* |
| 2232 * If we have just finished replacing a hot spared device, then | |
| 2233 * we need to detach the parent's first child (the original hot | |
| 2234 * spare) as well. | |
| 2235 */ | |
| 2236 pvd = vd->vdev_parent; | |
| 2237 if (pvd->vdev_parent->vdev_ops == &vdev_spare_ops && | |
| 2238 pvd->vdev_id == 0) { | |
| 2239 ASSERT(pvd->vdev_ops == &vdev_replacing_ops); | |
| 2240 ASSERT(pvd->vdev_parent->vdev_children == 2); | |
| 2241 pguid = pvd->vdev_parent->vdev_child[1]->vdev_guid; | |
| 2242 } | |
| 1544 | 2243 spa_config_exit(spa, FTAG); |
| 2244 if (spa_vdev_detach(spa, guid, B_TRUE) != 0) | |
| 2245 return; | |
| 2082 | 2246 if (pguid != 0 && spa_vdev_detach(spa, pguid, B_TRUE) != 0) |
| 2247 return; | |
| 1544 | 2248 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 2249 } |
| 2250 | |
| 1544 | 2251 spa_config_exit(spa, FTAG); |
| 789 | 2252 } |
| 2253 | |
| 2254 /* | |
|
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2255 * Update the stored path for this vdev. Dirty the vdev configuration, relying |
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2256 * on spa_vdev_enter/exit() to synchronize the labels and cache. |
|
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2257 */ |
|
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2258 int |
|
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2259 spa_vdev_setpath(spa_t *spa, uint64_t guid, const char *newpath) |
|
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2260 { |
|
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2261 vdev_t *rvd, *vd; |
|
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2262 uint64_t txg; |
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2263 |
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2264 rvd = spa->spa_root_vdev; |
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2265 |
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2266 txg = spa_vdev_enter(spa); |
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2267 |
| 2082 | 2268 if ((vd = vdev_lookup_by_guid(rvd, guid)) == NULL) { |
| 2269 /* | |
| 2270 * Determine if this is a reference to a hot spare. In that | |
| 2271 * case, update the path as stored in the spare list. | |
| 2272 */ | |
| 2273 nvlist_t **spares; | |
| 2274 uint_t i, nspares; | |
| 2275 if (spa->spa_sparelist != NULL) { | |
| 2276 VERIFY(nvlist_lookup_nvlist_array(spa->spa_sparelist, | |
| 2277 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); | |
| 2278 for (i = 0; i < nspares; i++) { | |
| 2279 uint64_t theguid; | |
| 2280 VERIFY(nvlist_lookup_uint64(spares[i], | |
| 2281 ZPOOL_CONFIG_GUID, &theguid) == 0); | |
| 2282 if (theguid == guid) | |
| 2283 break; | |
| 2284 } | |
| 2285 | |
| 2286 if (i == nspares) | |
| 2287 return (spa_vdev_exit(spa, NULL, txg, ENOENT)); | |
| 2288 | |
| 2289 VERIFY(nvlist_add_string(spares[i], | |
| 2290 ZPOOL_CONFIG_PATH, newpath) == 0); | |
| 2291 spa_load_spares(spa); | |
| 2292 spa->spa_sync_spares = B_TRUE; | |
| 2293 return (spa_vdev_exit(spa, NULL, txg, 0)); | |
| 2294 } else { | |
| 2295 return (spa_vdev_exit(spa, NULL, txg, ENOENT)); | |
| 2296 } | |
| 2297 } | |
|
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2298 |
|
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2299 if (!vd->vdev_ops->vdev_op_leaf) |
|
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2300 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
|
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2301 |
|
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2302 spa_strfree(vd->vdev_path); |
|
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2303 vd->vdev_path = spa_strdup(newpath); |
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2304 |
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2305 vdev_config_dirty(vd->vdev_top); |
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2306 |
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2307 return (spa_vdev_exit(spa, NULL, txg, 0)); |
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2308 } |
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2309 |
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2310 /* |
| 789 | 2311 * ========================================================================== |
| 2312 * SPA Scrubbing | |
| 2313 * ========================================================================== | |
| 2314 */ | |
| 2315 | |
| 2316 static void | |
| 2317 spa_scrub_io_done(zio_t *zio) | |
| 2318 { | |
| 2319 spa_t *spa = zio->io_spa; | |
| 2320 | |
|
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2321 arc_data_buf_free(zio->io_data, zio->io_size); |
| 789 | 2322 |
| 2323 mutex_enter(&spa->spa_scrub_lock); | |
| 1544 | 2324 if (zio->io_error && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { |
|
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2325 vdev_t *vd = zio->io_vd ? zio->io_vd : spa->spa_root_vdev; |
| 789 | 2326 spa->spa_scrub_errors++; |
| 2327 mutex_enter(&vd->vdev_stat_lock); | |
| 2328 vd->vdev_stat.vs_scrub_errors++; | |
| 2329 mutex_exit(&vd->vdev_stat_lock); | |
| 2330 } | |
|
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2331 |
|
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2332 if (--spa->spa_scrub_inflight < spa->spa_scrub_maxinflight) |
| 1544 | 2333 cv_broadcast(&spa->spa_scrub_io_cv); |
|
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2334 |
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2335 ASSERT(spa->spa_scrub_inflight >= 0); |
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2336 |
| 1544 | 2337 mutex_exit(&spa->spa_scrub_lock); |
| 789 | 2338 } |
| 2339 | |
| 2340 static void | |
| 1544 | 2341 spa_scrub_io_start(spa_t *spa, blkptr_t *bp, int priority, int flags, |
| 2342 zbookmark_t *zb) | |
| 789 | 2343 { |
| 2344 size_t size = BP_GET_LSIZE(bp); | |
|
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2345 void *data; |
| 789 | 2346 |
| 2347 mutex_enter(&spa->spa_scrub_lock); | |
|
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2348 /* |
|
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2349 * Do not give too much work to vdev(s). |
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2350 */ |
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2351 while (spa->spa_scrub_inflight >= spa->spa_scrub_maxinflight) { |
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2352 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); |
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2353 } |
| 789 | 2354 spa->spa_scrub_inflight++; |
| 2355 mutex_exit(&spa->spa_scrub_lock); | |
| 2356 | |
|
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2357 data = arc_data_buf_alloc(size); |
|
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2358 |
| 1544 | 2359 if (zb->zb_level == -1 && BP_GET_TYPE(bp) != DMU_OT_OBJSET) |
| 2360 flags |= ZIO_FLAG_SPECULATIVE; /* intent log block */ | |
| 2361 | |
|
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2362 flags |= ZIO_FLAG_SCRUB_THREAD | ZIO_FLAG_CANFAIL; |
| 1544 | 2363 |
| 789 | 2364 zio_nowait(zio_read(NULL, spa, bp, data, size, |
| 1544 | 2365 spa_scrub_io_done, NULL, priority, flags, zb)); |
| 789 | 2366 } |
| 2367 | |
| 2368 /* ARGSUSED */ | |
| 2369 static int | |
| 2370 spa_scrub_cb(traverse_blk_cache_t *bc, spa_t *spa, void *a) | |
| 2371 { | |
| 2372 blkptr_t *bp = &bc->bc_blkptr; | |
|
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2373 vdev_t *vd = spa->spa_root_vdev; |
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2374 dva_t *dva = bp->blk_dva; |
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2375 int needs_resilver = B_FALSE; |
|
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2376 int d; |
| 789 | 2377 |
|
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2378 if (bc->bc_errno) { |
| 789 | 2379 /* |
| 2380 * We can't scrub this block, but we can continue to scrub | |
| 2381 * the rest of the pool. Note the error and move along. | |
| 2382 */ | |
| 2383 mutex_enter(&spa->spa_scrub_lock); | |
| 2384 spa->spa_scrub_errors++; | |
| 2385 mutex_exit(&spa->spa_scrub_lock); | |
| 2386 | |
|
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2387 mutex_enter(&vd->vdev_stat_lock); |
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2388 vd->vdev_stat.vs_scrub_errors++; |
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2389 mutex_exit(&vd->vdev_stat_lock); |
| 789 | 2390 |
| 2391 return (ERESTART); | |
| 2392 } | |
| 2393 | |
| 2394 ASSERT(bp->blk_birth < spa->spa_scrub_maxtxg); | |
| 2395 | |
|
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2396 for (d = 0; d < BP_GET_NDVAS(bp); d++) { |
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2397 vd = vdev_lookup_top(spa, DVA_GET_VDEV(&dva[d])); |
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2398 |
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2399 ASSERT(vd != NULL); |
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2400 |
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2401 /* |
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2402 * Keep track of how much data we've examined so that |
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2403 * zpool(1M) status can make useful progress reports. |
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2404 */ |
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2405 mutex_enter(&vd->vdev_stat_lock); |
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2406 vd->vdev_stat.vs_scrub_examined += DVA_GET_ASIZE(&dva[d]); |
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2407 mutex_exit(&vd->vdev_stat_lock); |
| 789 | 2408 |
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2409 if (spa->spa_scrub_type == POOL_SCRUB_RESILVER) { |
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2410 if (DVA_GET_GANG(&dva[d])) { |
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2411 /* |
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2412 * Gang members may be spread across multiple |
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2413 * vdevs, so the best we can do is look at the |
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2414 * pool-wide DTL. |
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2415 * XXX -- it would be better to change our |
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2416 * allocation policy to ensure that this can't |
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2417 * happen. |
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2418 */ |
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2419 vd = spa->spa_root_vdev; |
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2420 } |
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2421 if (vdev_dtl_contains(&vd->vdev_dtl_map, |
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2422 bp->blk_birth, 1)) |
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2423 needs_resilver = B_TRUE; |
| 789 | 2424 } |
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2425 } |
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2426 |
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2427 if (spa->spa_scrub_type == POOL_SCRUB_EVERYTHING) |
| 789 | 2428 spa_scrub_io_start(spa, bp, ZIO_PRIORITY_SCRUB, |
| 1544 | 2429 ZIO_FLAG_SCRUB, &bc->bc_bookmark); |
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2430 else if (needs_resilver) |
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2431 spa_scrub_io_start(spa, bp, ZIO_PRIORITY_RESILVER, |
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2432 ZIO_FLAG_RESILVER, &bc->bc_bookmark); |
| 789 | 2433 |
| 2434 return (0); | |
| 2435 } | |
| 2436 | |
| 2437 static void | |
| 2438 spa_scrub_thread(spa_t *spa) | |
| 2439 { | |
| 2440 callb_cpr_t cprinfo; | |
| 2441 traverse_handle_t *th = spa->spa_scrub_th; | |
| 2442 vdev_t *rvd = spa->spa_root_vdev; | |
| 2443 pool_scrub_type_t scrub_type = spa->spa_scrub_type; | |
| 2444 int error = 0; | |
| 2445 boolean_t complete; | |
| 2446 | |
| 2447 CALLB_CPR_INIT(&cprinfo, &spa->spa_scrub_lock, callb_generic_cpr, FTAG); | |
| 2448 | |
|
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2449 /* |
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2450 * If we're restarting due to a snapshot create/delete, |
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2451 * wait for that to complete. |
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2452 */ |
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2453 txg_wait_synced(spa_get_dsl(spa), 0); |
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2454 |
| 1544 | 2455 dprintf("start %s mintxg=%llu maxtxg=%llu\n", |
| 2456 scrub_type == POOL_SCRUB_RESILVER ? "resilver" : "scrub", | |
| 2457 spa->spa_scrub_mintxg, spa->spa_scrub_maxtxg); | |
| 2458 | |
| 2459 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 2460 vdev_reopen(rvd); /* purge all vdev caches */ | |
| 789 | 2461 vdev_config_dirty(rvd); /* rewrite all disk labels */ |
| 2462 vdev_scrub_stat_update(rvd, scrub_type, B_FALSE); | |
| 1544 | 2463 spa_config_exit(spa, FTAG); |
| 789 | 2464 |
| 2465 mutex_enter(&spa->spa_scrub_lock); | |
| 2466 spa->spa_scrub_errors = 0; | |
| 2467 spa->spa_scrub_active = 1; | |
| 1544 | 2468 ASSERT(spa->spa_scrub_inflight == 0); |
| 789 | 2469 |
| 2470 while (!spa->spa_scrub_stop) { | |
| 2471 CALLB_CPR_SAFE_BEGIN(&cprinfo); | |
| 1544 | 2472 while (spa->spa_scrub_suspended) { |
| 789 | 2473 spa->spa_scrub_active = 0; |
| 2474 cv_broadcast(&spa->spa_scrub_cv); | |
| 2475 cv_wait(&spa->spa_scrub_cv, &spa->spa_scrub_lock); | |
| 2476 spa->spa_scrub_active = 1; | |
| 2477 } | |
| 2478 CALLB_CPR_SAFE_END(&cprinfo, &spa->spa_scrub_lock); | |
| 2479 | |
| 2480 if (spa->spa_scrub_restart_txg != 0) | |
| 2481 break; | |
| 2482 | |
| 2483 mutex_exit(&spa->spa_scrub_lock); | |
| 2484 error = traverse_more(th); | |
| 2485 mutex_enter(&spa->spa_scrub_lock); | |
| 2486 if (error != EAGAIN) | |
| 2487 break; | |
| 2488 } | |
| 2489 | |
| 2490 while (spa->spa_scrub_inflight) | |
| 2491 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); | |
| 2492 | |
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2493 spa->spa_scrub_active = 0; |
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2494 cv_broadcast(&spa->spa_scrub_cv); |
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2495 |
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2496 mutex_exit(&spa->spa_scrub_lock); |
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2497 |
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2498 spa_config_enter(spa, RW_WRITER, FTAG); |
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2499 |
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2500 mutex_enter(&spa->spa_scrub_lock); |
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2501 |
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2502 /* |
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2503 * Note: we check spa_scrub_restart_txg under both spa_scrub_lock |
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2504 * AND the spa config lock to synchronize with any config changes |
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2505 * that revise the DTLs under spa_vdev_enter() / spa_vdev_exit(). |
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2506 */ |
| 789 | 2507 if (spa->spa_scrub_restart_txg != 0) |
| 2508 error = ERESTART; | |
| 2509 | |
| 1544 | 2510 if (spa->spa_scrub_stop) |
| 2511 error = EINTR; | |
| 2512 | |
| 789 | 2513 /* |
| 1544 | 2514 * Even if there were uncorrectable errors, we consider the scrub |
| 2515 * completed. The downside is that if there is a transient error during | |
| 2516 * a resilver, we won't resilver the data properly to the target. But | |
| 2517 * if the damage is permanent (more likely) we will resilver forever, | |
| 2518 * which isn't really acceptable. Since there is enough information for | |
| 2519 * the user to know what has failed and why, this seems like a more | |
| 2520 * tractable approach. | |
| 789 | 2521 */ |
| 1544 | 2522 complete = (error == 0); |
| 789 | 2523 |
| 1544 | 2524 dprintf("end %s to maxtxg=%llu %s, traverse=%d, %llu errors, stop=%u\n", |
| 2525 scrub_type == POOL_SCRUB_RESILVER ? "resilver" : "scrub", | |
| 789 | 2526 spa->spa_scrub_maxtxg, complete ? "done" : "FAILED", |
| 2527 error, spa->spa_scrub_errors, spa->spa_scrub_stop); | |
| 2528 | |
| 2529 mutex_exit(&spa->spa_scrub_lock); | |
| 2530 | |
| 2531 /* | |
| 2532 * If the scrub/resilver completed, update all DTLs to reflect this. | |
| 2533 * Whether it succeeded or not, vacate all temporary scrub DTLs. | |
| 2534 */ | |
| 2535 vdev_dtl_reassess(rvd, spa_last_synced_txg(spa) + 1, | |
| 2536 complete ? spa->spa_scrub_maxtxg : 0, B_TRUE); | |
| 2537 vdev_scrub_stat_update(rvd, POOL_SCRUB_NONE, complete); | |
| 1544 | 2538 spa_errlog_rotate(spa); |
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2539 |
| 4451 | 2540 if (scrub_type == POOL_SCRUB_RESILVER && complete) |
| 2541 spa_event_notify(spa, NULL, ESC_ZFS_RESILVER_FINISH); | |
| 2542 | |
| 1544 | 2543 spa_config_exit(spa, FTAG); |
| 789 | 2544 |
| 2545 mutex_enter(&spa->spa_scrub_lock); | |
| 2546 | |
| 1544 | 2547 /* |
| 2548 * We may have finished replacing a device. | |
| 2549 * Let the async thread assess this and handle the detach. | |
| 2550 */ | |
| 4451 | 2551 spa_async_request(spa, SPA_ASYNC_RESILVER_DONE); |
| 789 | 2552 |
| 2553 /* | |
| 2554 * If we were told to restart, our final act is to start a new scrub. | |
| 2555 */ | |
| 2556 if (error == ERESTART) | |
| 1544 | 2557 spa_async_request(spa, scrub_type == POOL_SCRUB_RESILVER ? |
| 2558 SPA_ASYNC_RESILVER : SPA_ASYNC_SCRUB); | |
| 789 | 2559 |
| 1544 | 2560 spa->spa_scrub_type = POOL_SCRUB_NONE; |
| 2561 spa->spa_scrub_active = 0; | |
| 2562 spa->spa_scrub_thread = NULL; | |
| 2563 cv_broadcast(&spa->spa_scrub_cv); | |
| 789 | 2564 CALLB_CPR_EXIT(&cprinfo); /* drops &spa->spa_scrub_lock */ |
| 2565 thread_exit(); | |
| 2566 } | |
| 2567 | |
| 2568 void | |
| 2569 spa_scrub_suspend(spa_t *spa) | |
| 2570 { | |
| 2571 mutex_enter(&spa->spa_scrub_lock); | |
| 1544 | 2572 spa->spa_scrub_suspended++; |
| 789 | 2573 while (spa->spa_scrub_active) { |
| 2574 cv_broadcast(&spa->spa_scrub_cv); | |
| 2575 cv_wait(&spa->spa_scrub_cv, &spa->spa_scrub_lock); | |
| 2576 } | |
| 2577 while (spa->spa_scrub_inflight) | |
| 2578 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); | |
| 2579 mutex_exit(&spa->spa_scrub_lock); | |
| 2580 } | |
| 2581 | |
| 2582 void | |
| 2583 spa_scrub_resume(spa_t *spa) | |
| 2584 { | |
| 2585 mutex_enter(&spa->spa_scrub_lock); | |
| 1544 | 2586 ASSERT(spa->spa_scrub_suspended != 0); |
| 2587 if (--spa->spa_scrub_suspended == 0) | |
| 789 | 2588 cv_broadcast(&spa->spa_scrub_cv); |
| 2589 mutex_exit(&spa->spa_scrub_lock); | |
| 2590 } | |
| 2591 | |
| 2592 void | |
| 2593 spa_scrub_restart(spa_t *spa, uint64_t txg) | |
| 2594 { | |
| 2595 /* | |
| 2596 * Something happened (e.g. snapshot create/delete) that means | |
| 2597 * we must restart any in-progress scrubs. The itinerary will | |
| 2598 * fix this properly. | |
| 2599 */ | |
| 2600 mutex_enter(&spa->spa_scrub_lock); | |
| 2601 spa->spa_scrub_restart_txg = txg; | |
| 2602 mutex_exit(&spa->spa_scrub_lock); | |
| 2603 } | |
| 2604 | |
| 1544 | 2605 int |
| 2606 spa_scrub(spa_t *spa, pool_scrub_type_t type, boolean_t force) | |
| 789 | 2607 { |
| 2608 space_seg_t *ss; | |
| 2609 uint64_t mintxg, maxtxg; | |
| 2610 vdev_t *rvd = spa->spa_root_vdev; | |
| 2611 | |
| 4808 | 2612 ASSERT(MUTEX_HELD(&spa_namespace_lock)); |
| 2613 ASSERT(!spa_config_held(spa, RW_WRITER)); | |
| 2614 | |
| 789 | 2615 if ((uint_t)type >= POOL_SCRUB_TYPES) |
| 2616 return (ENOTSUP); | |
| 2617 | |
| 1544 | 2618 mutex_enter(&spa->spa_scrub_lock); |
| 2619 | |
| 789 | 2620 /* |
| 2621 * If there's a scrub or resilver already in progress, stop it. | |
| 2622 */ | |
| 2623 while (spa->spa_scrub_thread != NULL) { | |
| 2624 /* | |
| 2625 * Don't stop a resilver unless forced. | |
| 2626 */ | |
| 1544 | 2627 if (spa->spa_scrub_type == POOL_SCRUB_RESILVER && !force) { |
| 2628 mutex_exit(&spa->spa_scrub_lock); | |
| 789 | 2629 return (EBUSY); |
| 1544 | 2630 } |
| 789 | 2631 spa->spa_scrub_stop = 1; |
| 2632 cv_broadcast(&spa->spa_scrub_cv); | |
| 2633 cv_wait(&spa->spa_scrub_cv, &spa->spa_scrub_lock); | |
| 2634 } | |
| 2635 | |
| 2636 /* | |
| 2637 * Terminate the previous traverse. | |
| 2638 */ | |
| 2639 if (spa->spa_scrub_th != NULL) { | |
| 2640 traverse_fini(spa->spa_scrub_th); | |
| 2641 spa->spa_scrub_th = NULL; | |
| 2642 } | |
| 2643 | |
| 1544 | 2644 if (rvd == NULL) { |
| 2645 ASSERT(spa->spa_scrub_stop == 0); | |
| 2646 ASSERT(spa->spa_scrub_type == type); | |
| 2647 ASSERT(spa->spa_scrub_restart_txg == 0); | |
| 2648 mutex_exit(&spa->spa_scrub_lock); | |
| 2649 return (0); | |
| 2650 } | |
| 789 | 2651 |
| 2652 mintxg = TXG_INITIAL - 1; | |
| 2653 maxtxg = spa_last_synced_txg(spa) + 1; | |
| 2654 | |
| 1544 | 2655 mutex_enter(&rvd->vdev_dtl_lock); |
| 789 | 2656 |
| 1544 | 2657 if (rvd->vdev_dtl_map.sm_space == 0) { |
| 2658 /* | |
| 2659 * The pool-wide DTL is empty. | |
| 1732 | 2660 * If this is a resilver, there's nothing to do except |
| 2661 * check whether any in-progress replacements have completed. | |
| 1544 | 2662 */ |
| 1732 | 2663 if (type == POOL_SCRUB_RESILVER) { |
| 1544 | 2664 type = POOL_SCRUB_NONE; |
| 4451 | 2665 spa_async_request(spa, SPA_ASYNC_RESILVER_DONE); |
| 1732 | 2666 } |
| 1544 | 2667 } else { |
| 2668 /* | |
| 2669 * The pool-wide DTL is non-empty. | |
| 2670 * If this is a normal scrub, upgrade to a resilver instead. | |
| 2671 */ | |
| 2672 if (type == POOL_SCRUB_EVERYTHING) | |
| 2673 type = POOL_SCRUB_RESILVER; | |
| 2674 } | |
| 789 | 2675 |
| 1544 | 2676 if (type == POOL_SCRUB_RESILVER) { |
| 789 | 2677 /* |
| 2678 * Determine the resilvering boundaries. | |
| 2679 * | |
| 2680 * Note: (mintxg, maxtxg) is an open interval, | |
| 2681 * i.e. mintxg and maxtxg themselves are not included. | |
| 2682 * | |
| 2683 * Note: for maxtxg, we MIN with spa_last_synced_txg(spa) + 1 | |
| 2684 * so we don't claim to resilver a txg that's still changing. | |
| 2685 */ | |
| 2686 ss = avl_first(&rvd->vdev_dtl_map.sm_root); | |
| 1544 | 2687 mintxg = ss->ss_start - 1; |
| 789 | 2688 ss = avl_last(&rvd->vdev_dtl_map.sm_root); |
| 1544 | 2689 maxtxg = MIN(ss->ss_end, maxtxg); |
| 4451 | 2690 |
| 2691 spa_event_notify(spa, NULL, ESC_ZFS_RESILVER_START); | |
| 789 | 2692 } |
| 2693 | |
| 1544 | 2694 mutex_exit(&rvd->vdev_dtl_lock); |
| 2695 | |
| 2696 spa->spa_scrub_stop = 0; | |
| 2697 spa->spa_scrub_type = type; | |
| 2698 spa->spa_scrub_restart_txg = 0; | |
| 2699 | |
| 2700 if (type != POOL_SCRUB_NONE) { | |
| 2701 spa->spa_scrub_mintxg = mintxg; | |
| 789 | 2702 spa->spa_scrub_maxtxg = maxtxg; |
| 2703 spa->spa_scrub_th = traverse_init(spa, spa_scrub_cb, NULL, | |
|
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2704 ADVANCE_PRE | ADVANCE_PRUNE | ADVANCE_ZIL, |
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2705 ZIO_FLAG_CANFAIL); |
| 789 | 2706 traverse_add_pool(spa->spa_scrub_th, mintxg, maxtxg); |
| 2707 spa->spa_scrub_thread = thread_create(NULL, 0, | |
| 2708 spa_scrub_thread, spa, 0, &p0, TS_RUN, minclsyspri); | |
| 2709 } | |
| 2710 | |
| 1544 | 2711 mutex_exit(&spa->spa_scrub_lock); |
| 2712 | |
| 789 | 2713 return (0); |
| 2714 } | |
| 2715 | |
| 1544 | 2716 /* |
| 2717 * ========================================================================== | |
| 2718 * SPA async task processing | |
| 2719 * ========================================================================== | |
| 2720 */ | |
| 2721 | |
| 2722 static void | |
| 4451 | 2723 spa_async_remove(spa_t *spa, vdev_t *vd) |
| 789 | 2724 { |
| 1544 | 2725 vdev_t *tvd; |
| 2726 int c; | |
| 2727 | |
| 4451 | 2728 for (c = 0; c < vd->vdev_children; c++) { |
| 2729 tvd = vd->vdev_child[c]; | |
| 2730 if (tvd->vdev_remove_wanted) { | |
| 2731 tvd->vdev_remove_wanted = 0; | |
| 2732 vdev_set_state(tvd, B_FALSE, VDEV_STATE_REMOVED, | |
| 2733 VDEV_AUX_NONE); | |
| 2734 vdev_clear(spa, tvd); | |
| 2735 vdev_config_dirty(tvd->vdev_top); | |
| 1544 | 2736 } |
| 4451 | 2737 spa_async_remove(spa, tvd); |
| 1544 | 2738 } |
| 2739 } | |
| 2740 | |
| 2741 static void | |
| 2742 spa_async_thread(spa_t *spa) | |
| 2743 { | |
| 2744 int tasks; | |
| 4451 | 2745 uint64_t txg; |
| 1544 | 2746 |
| 2747 ASSERT(spa->spa_sync_on); | |
| 789 | 2748 |
| 1544 | 2749 mutex_enter(&spa->spa_async_lock); |
| 2750 tasks = spa->spa_async_tasks; | |
| 2751 spa->spa_async_tasks = 0; | |
| 2752 mutex_exit(&spa->spa_async_lock); | |
| 2753 | |
| 2754 /* | |
|
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2755 * See if the config needs to be updated. |
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2756 */ |
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2757 if (tasks & SPA_ASYNC_CONFIG_UPDATE) { |
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2758 mutex_enter(&spa_namespace_lock); |
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2759 spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); |
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2760 mutex_exit(&spa_namespace_lock); |
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2761 } |
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2762 |
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2763 /* |
| 4451 | 2764 * See if any devices need to be marked REMOVED. |
| 1544 | 2765 */ |
| 4451 | 2766 if (tasks & SPA_ASYNC_REMOVE) { |
| 2767 txg = spa_vdev_enter(spa); | |
| 2768 spa_async_remove(spa, spa->spa_root_vdev); | |
| 2769 (void) spa_vdev_exit(spa, NULL, txg, 0); | |
| 2770 } | |
| 1544 | 2771 |
| 2772 /* | |
| 2773 * If any devices are done replacing, detach them. | |
| 2774 */ | |
| 4451 | 2775 if (tasks & SPA_ASYNC_RESILVER_DONE) |
| 2776 spa_vdev_resilver_done(spa); | |
| 789 | 2777 |
| 1544 | 2778 /* |
| 4451 | 2779 * Kick off a scrub. When starting a RESILVER scrub (or an EVERYTHING |
| 2780 * scrub which can become a resilver), we need to hold | |
| 2781 * spa_namespace_lock() because the sysevent we post via | |
| 2782 * spa_event_notify() needs to get the name of the pool. | |
| 1544 | 2783 */ |
| 4451 | 2784 if (tasks & SPA_ASYNC_SCRUB) { |
| 2785 mutex_enter(&spa_namespace_lock); | |
| 1544 | 2786 VERIFY(spa_scrub(spa, POOL_SCRUB_EVERYTHING, B_TRUE) == 0); |
| 4451 | 2787 mutex_exit(&spa_namespace_lock); |
| 2788 } | |
| 1544 | 2789 |
| 2790 /* | |
| 2791 * Kick off a resilver. | |
| 2792 */ | |
| 4451 | 2793 if (tasks & SPA_ASYNC_RESILVER) { |
| 2794 mutex_enter(&spa_namespace_lock); | |
| 1544 | 2795 VERIFY(spa_scrub(spa, POOL_SCRUB_RESILVER, B_TRUE) == 0); |
| 4451 | 2796 mutex_exit(&spa_namespace_lock); |
| 2797 } | |
| 1544 | 2798 |
| 2799 /* | |
| 2800 * Let the world know that we're done. | |
| 2801 */ | |
| 2802 mutex_enter(&spa->spa_async_lock); | |
| 2803 spa->spa_async_thread = NULL; | |
| 2804 cv_broadcast(&spa->spa_async_cv); | |
| 2805 mutex_exit(&spa->spa_async_lock); | |
| 2806 thread_exit(); | |
| 2807 } | |
| 2808 | |
| 2809 void | |
| 2810 spa_async_suspend(spa_t *spa) | |
| 2811 { | |
| 2812 mutex_enter(&spa->spa_async_lock); | |
| 2813 spa->spa_async_suspended++; | |
| 2814 while (spa->spa_async_thread != NULL) | |
| 2815 cv_wait(&spa->spa_async_cv, &spa->spa_async_lock); | |
| 2816 mutex_exit(&spa->spa_async_lock); | |
| 2817 } | |
| 2818 | |
| 2819 void | |
| 2820 spa_async_resume(spa_t *spa) | |
| 2821 { | |
| 2822 mutex_enter(&spa->spa_async_lock); | |
| 2823 ASSERT(spa->spa_async_suspended != 0); | |
| 2824 spa->spa_async_suspended--; | |
| 2825 mutex_exit(&spa->spa_async_lock); | |
| 2826 } | |
| 2827 | |
| 2828 static void | |
| 2829 spa_async_dispatch(spa_t *spa) | |
| 2830 { | |
| 2831 mutex_enter(&spa->spa_async_lock); | |
| 2832 if (spa->spa_async_tasks && !spa->spa_async_suspended && | |
|
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2833 spa->spa_async_thread == NULL && |
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2834 rootdir != NULL && !vn_is_readonly(rootdir)) |
| 1544 | 2835 spa->spa_async_thread = thread_create(NULL, 0, |
| 2836 spa_async_thread, spa, 0, &p0, TS_RUN, maxclsyspri); | |
| 2837 mutex_exit(&spa->spa_async_lock); | |
| 2838 } | |
| 2839 | |
| 2840 void | |
| 2841 spa_async_request(spa_t *spa, int task) | |
| 2842 { | |
| 2843 mutex_enter(&spa->spa_async_lock); | |
| 2844 spa->spa_async_tasks |= task; | |
| 2845 mutex_exit(&spa->spa_async_lock); | |
| 789 | 2846 } |
| 2847 | |
| 2848 /* | |
| 2849 * ========================================================================== | |
| 2850 * SPA syncing routines | |
| 2851 * ========================================================================== | |
| 2852 */ | |
| 2853 | |
| 2854 static void | |
| 2855 spa_sync_deferred_frees(spa_t *spa, uint64_t txg) | |
| 2856 { | |
| 2857 bplist_t *bpl = &spa->spa_sync_bplist; | |
| 2858 dmu_tx_t *tx; | |
| 2859 blkptr_t blk; | |
| 2860 uint64_t itor = 0; | |
| 2861 zio_t *zio; | |
| 2862 int error; | |
| 2863 uint8_t c = 1; | |
| 2864 | |
| 2865 zio = zio_root(spa, NULL, NULL, ZIO_FLAG_CONFIG_HELD); | |
| 2866 | |
| 2867 while (bplist_iterate(bpl, &itor, &blk) == 0) | |
| 2868 zio_nowait(zio_free(zio, spa, txg, &blk, NULL, NULL)); | |
| 2869 | |
| 2870 error = zio_wait(zio); | |
| 2871 ASSERT3U(error, ==, 0); | |
| 2872 | |
| 2873 tx = dmu_tx_create_assigned(spa->spa_dsl_pool, txg); | |
| 2874 bplist_vacate(bpl, tx); | |
| 2875 | |
| 2876 /* | |
| 2877 * Pre-dirty the first block so we sync to convergence faster. | |
| 2878 * (Usually only the first block is needed.) | |
| 2879 */ | |
| 2880 dmu_write(spa->spa_meta_objset, spa->spa_sync_bplist_obj, 0, 1, &c, tx); | |
| 2881 dmu_tx_commit(tx); | |
| 2882 } | |
| 2883 | |
| 2884 static void | |
| 2082 | 2885 spa_sync_nvlist(spa_t *spa, uint64_t obj, nvlist_t *nv, dmu_tx_t *tx) |
| 2886 { | |
| 2887 char *packed = NULL; | |
| 2888 size_t nvsize = 0; | |
| 2889 dmu_buf_t *db; | |
| 2890 | |
| 2891 VERIFY(nvlist_size(nv, &nvsize, NV_ENCODE_XDR) == 0); | |
| 2892 | |
| 2893 packed = kmem_alloc(nvsize, KM_SLEEP); | |
| 2894 | |
| 2895 VERIFY(nvlist_pack(nv, &packed, &nvsize, NV_ENCODE_XDR, | |
| 2896 KM_SLEEP) == 0); | |
| 2897 | |
| 2898 dmu_write(spa->spa_meta_objset, obj, 0, nvsize, packed, tx); | |
| 2899 | |
| 2900 kmem_free(packed, nvsize); | |
| 2901 | |
| 2902 VERIFY(0 == dmu_bonus_hold(spa->spa_meta_objset, obj, FTAG, &db)); | |
| 2903 dmu_buf_will_dirty(db, tx); | |
| 2904 *(uint64_t *)db->db_data = nvsize; | |
| 2905 dmu_buf_rele(db, FTAG); | |
| 2906 } | |
| 2907 | |
| 2908 static void | |
| 2909 spa_sync_spares(spa_t *spa, dmu_tx_t *tx) | |
| 2910 { | |
| 2911 nvlist_t *nvroot; | |
| 2912 nvlist_t **spares; | |
| 2913 int i; | |
| 2914 | |
| 2915 if (!spa->spa_sync_spares) | |
| 2916 return; | |
| 2917 | |
| 2918 /* | |
| 2919 * Update the MOS nvlist describing the list of available spares. | |
| 2920 * spa_validate_spares() will have already made sure this nvlist is | |
| 4451 | 2921 * valid and the vdevs are labeled appropriately. |
| 2082 | 2922 */ |
| 2923 if (spa->spa_spares_object == 0) { | |
| 2924 spa->spa_spares_object = dmu_object_alloc(spa->spa_meta_objset, | |
| 2925 DMU_OT_PACKED_NVLIST, 1 << 14, | |
| 2926 DMU_OT_PACKED_NVLIST_SIZE, sizeof (uint64_t), tx); | |
| 2927 VERIFY(zap_update(spa->spa_meta_objset, | |
| 2928 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SPARES, | |
| 2929 sizeof (uint64_t), 1, &spa->spa_spares_object, tx) == 0); | |
| 2930 } | |
| 2931 | |
| 2932 VERIFY(nvlist_alloc(&nvroot, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
| 2933 if (spa->spa_nspares == 0) { | |
| 2934 VERIFY(nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
| 2935 NULL, 0) == 0); | |
| 2936 } else { | |
| 2937 spares = kmem_alloc(spa->spa_nspares * sizeof (void *), | |
| 2938 KM_SLEEP); | |
| 2939 for (i = 0; i < spa->spa_nspares; i++) | |
| 2940 spares[i] = vdev_config_generate(spa, | |
| 2941 spa->spa_spares[i], B_FALSE, B_TRUE); | |
| 2942 VERIFY(nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
| 2943 spares, spa->spa_nspares) == 0); | |
| 2944 for (i = 0; i < spa->spa_nspares; i++) | |
| 2945 nvlist_free(spares[i]); | |
| 2946 kmem_free(spares, spa->spa_nspares * sizeof (void *)); | |
| 2947 } | |
| 2948 | |
| 2949 spa_sync_nvlist(spa, spa->spa_spares_object, nvroot, tx); | |
| 2926 | 2950 nvlist_free(nvroot); |
| 2082 | 2951 |
| 2952 spa->spa_sync_spares = B_FALSE; | |
| 2953 } | |
| 2954 | |
| 2955 static void | |
| 789 | 2956 spa_sync_config_object(spa_t *spa, dmu_tx_t *tx) |
| 2957 { | |
| 2958 nvlist_t *config; | |
| 2959 | |
| 2960 if (list_is_empty(&spa->spa_dirty_list)) | |
| 2961 return; | |
| 2962 | |
| 2963 config = spa_config_generate(spa, NULL, dmu_tx_get_txg(tx), B_FALSE); | |
| 2964 | |
|
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2965 if (spa->spa_config_syncing) |
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2966 nvlist_free(spa->spa_config_syncing); |
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2967 spa->spa_config_syncing = config; |
| 789 | 2968 |
| 2082 | 2969 spa_sync_nvlist(spa, spa->spa_config_object, config, tx); |
| 789 | 2970 } |
| 2971 | |
| 3912 | 2972 static void |
| 4543 | 2973 spa_sync_props(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) |
| 3912 | 2974 { |
| 2975 spa_t *spa = arg1; | |
| 2976 nvlist_t *nvp = arg2; | |
| 2977 nvpair_t *nvpair; | |
| 2978 objset_t *mos = spa->spa_meta_objset; | |
| 2979 uint64_t zapobj; | |
| 4451 | 2980 uint64_t intval; |
| 3912 | 2981 |
| 2982 mutex_enter(&spa->spa_props_lock); | |
| 2983 if (spa->spa_pool_props_object == 0) { | |
| 2984 zapobj = zap_create(mos, DMU_OT_POOL_PROPS, DMU_OT_NONE, 0, tx); | |
| 2985 VERIFY(zapobj > 0); | |
| 2986 | |
| 2987 spa->spa_pool_props_object = zapobj; | |
| 2988 | |
| 2989 VERIFY(zap_update(mos, DMU_POOL_DIRECTORY_OBJECT, | |
| 2990 DMU_POOL_PROPS, 8, 1, | |
| 2991 &spa->spa_pool_props_object, tx) == 0); | |
| 2992 } | |
| 2993 mutex_exit(&spa->spa_props_lock); | |
| 2994 | |
| 2995 nvpair = NULL; | |
| 2996 while ((nvpair = nvlist_next_nvpair(nvp, nvpair))) { | |
| 2997 switch (zpool_name_to_prop(nvpair_name(nvpair))) { | |
| 4543 | 2998 case ZPOOL_PROP_DELEGATION: |
| 2999 VERIFY(nvlist_lookup_uint64(nvp, | |
| 3000 nvpair_name(nvpair), &intval) == 0); | |
| 3001 VERIFY(zap_update(mos, | |
| 3002 spa->spa_pool_props_object, | |
| 3003 nvpair_name(nvpair), 8, 1, | |
| 3004 &intval, tx) == 0); | |
| 3005 spa->spa_delegation = intval; | |
| 3006 break; | |
| 4451 | 3007 case ZPOOL_PROP_BOOTFS: |
| 3912 | 3008 VERIFY(nvlist_lookup_uint64(nvp, |
| 3009 nvpair_name(nvpair), &spa->spa_bootfs) == 0); | |
| 4543 | 3010 intval = spa->spa_bootfs; |
| 3912 | 3011 VERIFY(zap_update(mos, |
| 3012 spa->spa_pool_props_object, | |
| 4451 | 3013 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), 8, 1, |
| 4543 | 3014 &intval, tx) == 0); |
| 3912 | 3015 break; |
| 4451 | 3016 |
| 3017 case ZPOOL_PROP_AUTOREPLACE: | |
| 3018 VERIFY(nvlist_lookup_uint64(nvp, | |
| 3019 nvpair_name(nvpair), &intval) == 0); | |
| 3020 VERIFY(zap_update(mos, | |
| 3021 spa->spa_pool_props_object, | |
| 3022 zpool_prop_to_name(ZPOOL_PROP_AUTOREPLACE), 8, 1, | |
| 3023 &intval, tx) == 0); | |
| 3024 break; | |
| 3912 | 3025 } |
| 4543 | 3026 spa_history_internal_log(LOG_POOL_PROPSET, |
| 3027 spa, tx, cr, "%s %lld %s", | |
| 3028 nvpair_name(nvpair), intval, | |
| 3029 spa->spa_name); | |
| 3912 | 3030 } |
| 3031 } | |
| 3032 | |
| 789 | 3033 /* |
| 3034 * Sync the specified transaction group. New blocks may be dirtied as | |
| 3035 * part of the process, so we iterate until it converges. | |
| 3036 */ | |
| 3037 void | |
| 3038 spa_sync(spa_t *spa, uint64_t txg) | |
| 3039 { | |
| 3040 dsl_pool_t *dp = spa->spa_dsl_pool; | |
| 3041 objset_t *mos = spa->spa_meta_objset; | |
| 3042 bplist_t *bpl = &spa->spa_sync_bplist; | |
|
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3043 vdev_t *rvd = spa->spa_root_vdev; |
| 789 | 3044 vdev_t *vd; |
| 3045 dmu_tx_t *tx; | |
| 3046 int dirty_vdevs; | |
| 3047 | |
| 3048 /* | |
| 3049 * Lock out configuration changes. | |
| 3050 */ | |
| 1544 | 3051 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 3052 |
| 3053 spa->spa_syncing_txg = txg; | |
| 3054 spa->spa_sync_pass = 0; | |
| 3055 | |
| 1544 | 3056 VERIFY(0 == bplist_open(bpl, mos, spa->spa_sync_bplist_obj)); |
| 789 | 3057 |
| 2082 | 3058 tx = dmu_tx_create_assigned(dp, txg); |
| 3059 | |
| 3060 /* | |
| 4577 | 3061 * If we are upgrading to SPA_VERSION_RAIDZ_DEFLATE this txg, |
| 2082 | 3062 * set spa_deflate if we have no raid-z vdevs. |
| 3063 */ | |
| 4577 | 3064 if (spa->spa_ubsync.ub_version < SPA_VERSION_RAIDZ_DEFLATE && |
| 3065 spa->spa_uberblock.ub_version >= SPA_VERSION_RAIDZ_DEFLATE) { | |
| 2082 | 3066 int i; |
| 3067 | |
| 3068 for (i = 0; i < rvd->vdev_children; i++) { | |
| 3069 vd = rvd->vdev_child[i]; | |
| 3070 if (vd->vdev_deflate_ratio != SPA_MINBLOCKSIZE) | |
| 3071 break; | |
| 3072 } | |
| 3073 if (i == rvd->vdev_children) { | |
| 3074 spa->spa_deflate = TRUE; | |
| 3075 VERIFY(0 == zap_add(spa->spa_meta_objset, | |
| 3076 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
| 3077 sizeof (uint64_t), 1, &spa->spa_deflate, tx)); | |
| 3078 } | |
| 3079 } | |
| 3080 | |
| 789 | 3081 /* |
| 3082 * If anything has changed in this txg, push the deferred frees | |
| 3083 * from the previous txg. If not, leave them alone so that we | |
| 3084 * don't generate work on an otherwise idle system. | |
| 3085 */ | |
| 3086 if (!txg_list_empty(&dp->dp_dirty_datasets, txg) || | |
|
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3087 !txg_list_empty(&dp->dp_dirty_dirs, txg) || |
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3088 !txg_list_empty(&dp->dp_sync_tasks, txg)) |
| 789 | 3089 spa_sync_deferred_frees(spa, txg); |
| 3090 | |
| 3091 /* | |
| 3092 * Iterate to convergence. | |
| 3093 */ | |
| 3094 do { | |
| 3095 spa->spa_sync_pass++; | |
| 3096 | |
| 3097 spa_sync_config_object(spa, tx); | |
| 2082 | 3098 spa_sync_spares(spa, tx); |
| 1544 | 3099 spa_errlog_sync(spa, txg); |
| 789 | 3100 dsl_pool_sync(dp, txg); |
| 3101 | |
| 3102 dirty_vdevs = 0; | |
| 3103 while (vd = txg_list_remove(&spa->spa_vdev_txg_list, txg)) { | |
| 3104 vdev_sync(vd, txg); | |
| 3105 dirty_vdevs++; | |
| 3106 } | |
| 3107 | |
| 3108 bplist_sync(bpl, tx); | |
| 3109 } while (dirty_vdevs); | |
| 3110 | |
| 3111 bplist_close(bpl); | |
| 3112 | |
| 3113 dprintf("txg %llu passes %d\n", txg, spa->spa_sync_pass); | |
| 3114 | |
| 3115 /* | |
| 3116 * Rewrite the vdev configuration (which includes the uberblock) | |
| 3117 * to commit the transaction group. | |
|
1635
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|
3118 * |
|
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|
3119 * If there are any dirty vdevs, sync the uberblock to all vdevs. |
|
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3120 * Otherwise, pick a random top-level vdev that's known to be |
|
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3121 * visible in the config cache (see spa_vdev_add() for details). |
|
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3122 * If the write fails, try the next vdev until we're tried them all. |
| 789 | 3123 */ |
|
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3124 if (!list_is_empty(&spa->spa_dirty_list)) { |
|
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3125 VERIFY(vdev_config_sync(rvd, txg) == 0); |
|
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3126 } else { |
|
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|
3127 int children = rvd->vdev_children; |
|
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3128 int c0 = spa_get_random(children); |
|
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|
3129 int c; |
|
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|
3130 |
|
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3131 for (c = 0; c < children; c++) { |
|
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3132 vd = rvd->vdev_child[(c0 + c) % children]; |
|
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3133 if (vd->vdev_ms_array == 0) |
|
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|
3134 continue; |
|
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|
3135 if (vdev_config_sync(vd, txg) == 0) |
|
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|
3136 break; |
|
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|
3137 } |
|
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|
3138 if (c == children) |
|
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|
3139 VERIFY(vdev_config_sync(rvd, txg) == 0); |
|
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|
3140 } |
|
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|
3141 |
| 2082 | 3142 dmu_tx_commit(tx); |
| 3143 | |
|
1635
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|
3144 /* |
|
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|
3145 * Clear the dirty config list. |
|
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|
3146 */ |
|
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|
3147 while ((vd = list_head(&spa->spa_dirty_list)) != NULL) |
|
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|
3148 vdev_config_clean(vd); |
|
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|
3149 |
|
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|
3150 /* |
|
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|
3151 * Now that the new config has synced transactionally, |
|
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|
3152 * let it become visible to the config cache. |
|
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|
3153 */ |
|
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|
3154 if (spa->spa_config_syncing != NULL) { |
|
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|
3155 spa_config_set(spa, spa->spa_config_syncing); |
|
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|
3156 spa->spa_config_txg = txg; |
|
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|
3157 spa->spa_config_syncing = NULL; |
|
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|
3158 } |
| 789 | 3159 |
| 3160 /* | |
| 3161 * Make a stable copy of the fully synced uberblock. | |
| 3162 * We use this as the root for pool traversals. | |
| 3163 */ | |
| 3164 spa->spa_traverse_wanted = 1; /* tells traverse_more() to stop */ | |
| 3165 | |
| 3166 spa_scrub_suspend(spa); /* stop scrubbing and finish I/Os */ | |
| 3167 | |
| 3168 rw_enter(&spa->spa_traverse_lock, RW_WRITER); | |
| 3169 spa->spa_traverse_wanted = 0; | |
| 3170 spa->spa_ubsync = spa->spa_uberblock; | |
| 3171 rw_exit(&spa->spa_traverse_lock); | |
| 3172 | |
| 3173 spa_scrub_resume(spa); /* resume scrub with new ubsync */ | |
| 3174 | |
| 3175 /* | |
| 3176 * Clean up the ZIL records for the synced txg. | |
| 3177 */ | |
| 3178 dsl_pool_zil_clean(dp); | |
| 3179 | |
| 3180 /* | |
| 3181 * Update usable space statistics. | |
| 3182 */ | |
| 3183 while (vd = txg_list_remove(&spa->spa_vdev_txg_list, TXG_CLEAN(txg))) | |
| 3184 vdev_sync_done(vd, txg); | |
| 3185 | |
| 3186 /* | |
| 3187 * It had better be the case that we didn't dirty anything | |
| 2082 | 3188 * since vdev_config_sync(). |
| 789 | 3189 */ |
| 3190 ASSERT(txg_list_empty(&dp->dp_dirty_datasets, txg)); | |
| 3191 ASSERT(txg_list_empty(&dp->dp_dirty_dirs, txg)); | |
| 3192 ASSERT(txg_list_empty(&spa->spa_vdev_txg_list, txg)); | |
| 3193 ASSERT(bpl->bpl_queue == NULL); | |
| 3194 | |
| 1544 | 3195 spa_config_exit(spa, FTAG); |
| 3196 | |
| 3197 /* | |
| 3198 * If any async tasks have been requested, kick them off. | |
| 3199 */ | |
| 3200 spa_async_dispatch(spa); | |
| 789 | 3201 } |
| 3202 | |
| 3203 /* | |
| 3204 * Sync all pools. We don't want to hold the namespace lock across these | |
| 3205 * operations, so we take a reference on the spa_t and drop the lock during the | |
| 3206 * sync. | |
| 3207 */ | |
| 3208 void | |
| 3209 spa_sync_allpools(void) | |
| 3210 { | |
| 3211 spa_t *spa = NULL; | |
| 3212 mutex_enter(&spa_namespace_lock); | |
| 3213 while ((spa = spa_next(spa)) != NULL) { | |
| 3214 if (spa_state(spa) != POOL_STATE_ACTIVE) | |
| 3215 continue; | |
| 3216 spa_open_ref(spa, FTAG); | |
| 3217 mutex_exit(&spa_namespace_lock); | |
| 3218 txg_wait_synced(spa_get_dsl(spa), 0); | |
| 3219 mutex_enter(&spa_namespace_lock); | |
| 3220 spa_close(spa, FTAG); | |
| 3221 } | |
| 3222 mutex_exit(&spa_namespace_lock); | |
| 3223 } | |
| 3224 | |
| 3225 /* | |
| 3226 * ========================================================================== | |
| 3227 * Miscellaneous routines | |
| 3228 * ========================================================================== | |
| 3229 */ | |
| 3230 | |
| 3231 /* | |
| 3232 * Remove all pools in the system. | |
| 3233 */ | |
| 3234 void | |
| 3235 spa_evict_all(void) | |
| 3236 { | |
| 3237 spa_t *spa; | |
| 3238 | |
| 3239 /* | |
| 3240 * Remove all cached state. All pools should be closed now, | |
| 3241 * so every spa in the AVL tree should be unreferenced. | |
| 3242 */ | |
| 3243 mutex_enter(&spa_namespace_lock); | |
| 3244 while ((spa = spa_next(NULL)) != NULL) { | |
| 3245 /* | |
| 1544 | 3246 * Stop async tasks. The async thread may need to detach |
| 3247 * a device that's been replaced, which requires grabbing | |
| 3248 * spa_namespace_lock, so we must drop it here. | |
| 789 | 3249 */ |
| 3250 spa_open_ref(spa, FTAG); | |
| 3251 mutex_exit(&spa_namespace_lock); | |
| 1544 | 3252 spa_async_suspend(spa); |
| 4808 | 3253 mutex_enter(&spa_namespace_lock); |
| 789 | 3254 VERIFY(spa_scrub(spa, POOL_SCRUB_NONE, B_TRUE) == 0); |
| 3255 spa_close(spa, FTAG); | |
| 3256 | |
| 3257 if (spa->spa_state != POOL_STATE_UNINITIALIZED) { | |
| 3258 spa_unload(spa); | |
| 3259 spa_deactivate(spa); | |
| 3260 } | |
| 3261 spa_remove(spa); | |
| 3262 } | |
| 3263 mutex_exit(&spa_namespace_lock); | |
| 3264 } | |
| 1544 | 3265 |
| 3266 vdev_t * | |
| 3267 spa_lookup_by_guid(spa_t *spa, uint64_t guid) | |
| 3268 { | |
| 3269 return (vdev_lookup_by_guid(spa->spa_root_vdev, guid)); | |
| 3270 } | |
| 1760 | 3271 |
| 3272 void | |
| 3273 spa_upgrade(spa_t *spa) | |
| 3274 { | |
| 3275 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 3276 | |
| 3277 /* | |
| 3278 * This should only be called for a non-faulted pool, and since a | |
| 3279 * future version would result in an unopenable pool, this shouldn't be | |
| 3280 * possible. | |
| 3281 */ | |
| 4577 | 3282 ASSERT(spa->spa_uberblock.ub_version <= SPA_VERSION); |
| 3283 | |
| 3284 spa->spa_uberblock.ub_version = SPA_VERSION; | |
| 1760 | 3285 vdev_config_dirty(spa->spa_root_vdev); |
| 3286 | |
| 3287 spa_config_exit(spa, FTAG); | |
| 2082 | 3288 |
| 3289 txg_wait_synced(spa_get_dsl(spa), 0); | |
| 1760 | 3290 } |
| 2082 | 3291 |
| 3292 boolean_t | |
| 3293 spa_has_spare(spa_t *spa, uint64_t guid) | |
| 3294 { | |
| 3295 int i; | |
|
3377
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6393525 vdev_reopen() should verify that it's still the same device
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3290
diff
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|
3296 uint64_t spareguid; |
| 2082 | 3297 |
| 3298 for (i = 0; i < spa->spa_nspares; i++) | |
| 3299 if (spa->spa_spares[i]->vdev_guid == guid) | |
| 3300 return (B_TRUE); | |
| 3301 | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
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3290
diff
changeset
|
3302 for (i = 0; i < spa->spa_pending_nspares; i++) { |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
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3290
diff
changeset
|
3303 if (nvlist_lookup_uint64(spa->spa_pending_spares[i], |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
3304 ZPOOL_CONFIG_GUID, &spareguid) == 0 && |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
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3290
diff
changeset
|
3305 spareguid == guid) |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
3306 return (B_TRUE); |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
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3290
diff
changeset
|
3307 } |
|
a2fa338530c1
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diff
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|
3308 |
| 2082 | 3309 return (B_FALSE); |
| 3310 } | |
| 3912 | 3311 |
| 3312 int | |
| 3313 spa_set_props(spa_t *spa, nvlist_t *nvp) | |
| 3314 { | |
| 3315 return (dsl_sync_task_do(spa_get_dsl(spa), NULL, spa_sync_props, | |
| 3316 spa, nvp, 3)); | |
| 3317 } | |
| 3318 | |
| 3319 int | |
| 3320 spa_get_props(spa_t *spa, nvlist_t **nvp) | |
| 3321 { | |
| 3322 zap_cursor_t zc; | |
| 3323 zap_attribute_t za; | |
| 3324 objset_t *mos = spa->spa_meta_objset; | |
| 3325 zfs_source_t src; | |
| 4451 | 3326 zpool_prop_t prop; |
| 3912 | 3327 nvlist_t *propval; |
| 3328 uint64_t value; | |
| 3329 int err; | |
| 3330 | |
| 3331 VERIFY(nvlist_alloc(nvp, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
| 3332 | |
| 3333 mutex_enter(&spa->spa_props_lock); | |
| 3334 /* If no props object, then just return empty nvlist */ | |
| 3335 if (spa->spa_pool_props_object == 0) { | |
| 3336 mutex_exit(&spa->spa_props_lock); | |
| 3337 return (0); | |
| 3338 } | |
| 3339 | |
| 3340 for (zap_cursor_init(&zc, mos, spa->spa_pool_props_object); | |
| 3341 (err = zap_cursor_retrieve(&zc, &za)) == 0; | |
| 3342 zap_cursor_advance(&zc)) { | |
| 3343 | |
| 3344 if ((prop = zpool_name_to_prop(za.za_name)) == ZFS_PROP_INVAL) | |
| 3345 continue; | |
| 3346 | |
| 3347 VERIFY(nvlist_alloc(&propval, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
| 3348 switch (za.za_integer_length) { | |
| 3349 case 8: | |
| 4451 | 3350 if (zpool_prop_default_numeric(prop) == |
| 3912 | 3351 za.za_first_integer) |
| 3352 src = ZFS_SRC_DEFAULT; | |
| 3353 else | |
| 3354 src = ZFS_SRC_LOCAL; | |
| 3355 value = za.za_first_integer; | |
| 3356 | |
| 4451 | 3357 if (prop == ZPOOL_PROP_BOOTFS) { |
| 3912 | 3358 dsl_pool_t *dp; |
| 3359 dsl_dataset_t *ds = NULL; | |
| 3360 char strval[MAXPATHLEN]; | |
| 3361 | |
| 3362 dp = spa_get_dsl(spa); | |
| 3363 rw_enter(&dp->dp_config_rwlock, RW_READER); | |
| 3364 if ((err = dsl_dataset_open_obj(dp, | |
| 3365 za.za_first_integer, NULL, DS_MODE_NONE, | |
| 3366 FTAG, &ds)) != 0) { | |
| 3367 rw_exit(&dp->dp_config_rwlock); | |
| 3368 break; | |
| 3369 } | |
| 3370 dsl_dataset_name(ds, strval); | |
| 3371 dsl_dataset_close(ds, DS_MODE_NONE, FTAG); | |
| 3372 rw_exit(&dp->dp_config_rwlock); | |
| 3373 | |
| 3374 VERIFY(nvlist_add_uint64(propval, | |
| 3375 ZFS_PROP_SOURCE, src) == 0); | |
| 3376 VERIFY(nvlist_add_string(propval, | |
| 3377 ZFS_PROP_VALUE, strval) == 0); | |
| 3378 } else { | |
| 3379 VERIFY(nvlist_add_uint64(propval, | |
| 3380 ZFS_PROP_SOURCE, src) == 0); | |
| 3381 VERIFY(nvlist_add_uint64(propval, | |
| 3382 ZFS_PROP_VALUE, value) == 0); | |
| 3383 } | |
| 3384 VERIFY(nvlist_add_nvlist(*nvp, za.za_name, | |
| 3385 propval) == 0); | |
| 3386 break; | |
| 3387 } | |
| 3388 nvlist_free(propval); | |
| 3389 } | |
| 3390 zap_cursor_fini(&zc); | |
| 3391 mutex_exit(&spa->spa_props_lock); | |
| 3392 if (err && err != ENOENT) { | |
| 3393 nvlist_free(*nvp); | |
| 3394 return (err); | |
| 3395 } | |
| 3396 | |
| 3397 return (0); | |
| 3398 } | |
| 3399 | |
| 3400 /* | |
| 3401 * If the bootfs property value is dsobj, clear it. | |
| 3402 */ | |
| 3403 void | |
| 3404 spa_clear_bootfs(spa_t *spa, uint64_t dsobj, dmu_tx_t *tx) | |
| 3405 { | |
| 3406 if (spa->spa_bootfs == dsobj && spa->spa_pool_props_object != 0) { | |
| 3407 VERIFY(zap_remove(spa->spa_meta_objset, | |
| 3408 spa->spa_pool_props_object, | |
| 4451 | 3409 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), tx) == 0); |
| 3912 | 3410 spa->spa_bootfs = 0; |
| 3411 } | |
| 3412 } | |
| 4451 | 3413 |
| 3414 /* | |
| 3415 * Post a sysevent corresponding to the given event. The 'name' must be one of | |
| 3416 * the event definitions in sys/sysevent/eventdefs.h. The payload will be | |
| 3417 * filled in from the spa and (optionally) the vdev. This doesn't do anything | |
| 3418 * in the userland libzpool, as we don't want consumers to misinterpret ztest | |
| 3419 * or zdb as real changes. | |
| 3420 */ | |
| 3421 void | |
| 3422 spa_event_notify(spa_t *spa, vdev_t *vd, const char *name) | |
| 3423 { | |
| 3424 #ifdef _KERNEL | |
| 3425 sysevent_t *ev; | |
| 3426 sysevent_attr_list_t *attr = NULL; | |
| 3427 sysevent_value_t value; | |
| 3428 sysevent_id_t eid; | |
| 3429 | |
| 3430 ev = sysevent_alloc(EC_ZFS, (char *)name, SUNW_KERN_PUB "zfs", | |
| 3431 SE_SLEEP); | |
| 3432 | |
| 3433 value.value_type = SE_DATA_TYPE_STRING; | |
| 3434 value.value.sv_string = spa_name(spa); | |
| 3435 if (sysevent_add_attr(&attr, ZFS_EV_POOL_NAME, &value, SE_SLEEP) != 0) | |
| 3436 goto done; | |
| 3437 | |
| 3438 value.value_type = SE_DATA_TYPE_UINT64; | |
| 3439 value.value.sv_uint64 = spa_guid(spa); | |
| 3440 if (sysevent_add_attr(&attr, ZFS_EV_POOL_GUID, &value, SE_SLEEP) != 0) | |
| 3441 goto done; | |
| 3442 | |
| 3443 if (vd) { | |
| 3444 value.value_type = SE_DATA_TYPE_UINT64; | |
| 3445 value.value.sv_uint64 = vd->vdev_guid; | |
| 3446 if (sysevent_add_attr(&attr, ZFS_EV_VDEV_GUID, &value, | |
| 3447 SE_SLEEP) != 0) | |
| 3448 goto done; | |
| 3449 | |
| 3450 if (vd->vdev_path) { | |
| 3451 value.value_type = SE_DATA_TYPE_STRING; | |
| 3452 value.value.sv_string = vd->vdev_path; | |
| 3453 if (sysevent_add_attr(&attr, ZFS_EV_VDEV_PATH, | |
| 3454 &value, SE_SLEEP) != 0) | |
| 3455 goto done; | |
| 3456 } | |
| 3457 } | |
| 3458 | |
| 3459 (void) log_sysevent(ev, SE_SLEEP, &eid); | |
| 3460 | |
| 3461 done: | |
| 3462 if (attr) | |
| 3463 sysevent_free_attr(attr); | |
| 3464 sysevent_free(ev); | |
| 3465 #endif | |
| 3466 } |