Mercurial > illumos > illumos-gate
annotate usr/src/uts/common/fs/zfs/spa.c @ 5886:fe556dc3c14d onnv_82
backout 6575965/6600361: needs more work
| author | dm120769 |
|---|---|
| date | Tue, 22 Jan 2008 20:40:37 -0800 |
| parents | 5cb3c7daa1c1 |
| children | a77f8ad2ce63 |
| 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 2008 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> |
| 5450 | 59 #include <sys/arc.h> |
| 789 | 60 #include <sys/callb.h> |
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61 #include <sys/systeminfo.h> |
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62 #include <sys/sunddi.h> |
| 789 | 63 |
| 5094 | 64 #include "zfs_prop.h" |
| 65 | |
| 2986 | 66 int zio_taskq_threads = 8; |
| 67 | |
| 5094 | 68 static void spa_sync_props(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx); |
| 69 | |
| 70 /* | |
| 71 * ========================================================================== | |
| 72 * SPA properties routines | |
| 73 * ========================================================================== | |
| 74 */ | |
| 75 | |
| 76 /* | |
| 77 * Add a (source=src, propname=propval) list to an nvlist. | |
| 78 */ | |
| 79 static int | |
| 80 spa_prop_add_list(nvlist_t *nvl, zpool_prop_t prop, char *strval, | |
| 81 uint64_t intval, zprop_source_t src) | |
| 82 { | |
| 83 const char *propname = zpool_prop_to_name(prop); | |
| 84 nvlist_t *propval; | |
| 85 int err = 0; | |
| 86 | |
| 87 if (err = nvlist_alloc(&propval, NV_UNIQUE_NAME, KM_SLEEP)) | |
| 88 return (err); | |
| 89 | |
| 90 if (err = nvlist_add_uint64(propval, ZPROP_SOURCE, src)) | |
| 91 goto out; | |
| 92 | |
| 93 if (strval != NULL) { | |
| 94 if (err = nvlist_add_string(propval, ZPROP_VALUE, strval)) | |
| 95 goto out; | |
| 96 } else { | |
| 97 if (err = nvlist_add_uint64(propval, ZPROP_VALUE, intval)) | |
| 98 goto out; | |
| 99 } | |
| 100 | |
| 101 err = nvlist_add_nvlist(nvl, propname, propval); | |
| 102 out: | |
| 103 nvlist_free(propval); | |
| 104 return (err); | |
| 105 } | |
| 106 | |
| 107 /* | |
| 108 * Get property values from the spa configuration. | |
| 109 */ | |
| 110 static int | |
| 111 spa_prop_get_config(spa_t *spa, nvlist_t **nvp) | |
| 112 { | |
| 113 uint64_t size = spa_get_space(spa); | |
| 114 uint64_t used = spa_get_alloc(spa); | |
| 115 uint64_t cap, version; | |
| 116 zprop_source_t src = ZPROP_SRC_NONE; | |
| 117 int err; | |
| 5363 | 118 char *cachefile; |
| 119 size_t len; | |
| 5094 | 120 |
| 121 /* | |
| 122 * readonly properties | |
| 123 */ | |
| 124 if (err = spa_prop_add_list(*nvp, ZPOOL_PROP_NAME, spa->spa_name, | |
| 125 0, src)) | |
| 126 return (err); | |
| 127 | |
| 128 if (err = spa_prop_add_list(*nvp, ZPOOL_PROP_SIZE, NULL, size, src)) | |
| 129 return (err); | |
| 130 | |
| 131 if (err = spa_prop_add_list(*nvp, ZPOOL_PROP_USED, NULL, used, src)) | |
| 132 return (err); | |
| 133 | |
| 134 if (err = spa_prop_add_list(*nvp, ZPOOL_PROP_AVAILABLE, NULL, | |
| 135 size - used, src)) | |
| 136 return (err); | |
| 137 | |
| 138 cap = (size == 0) ? 0 : (used * 100 / size); | |
| 139 if (err = spa_prop_add_list(*nvp, ZPOOL_PROP_CAPACITY, NULL, cap, src)) | |
| 140 return (err); | |
| 141 | |
| 142 if (err = spa_prop_add_list(*nvp, ZPOOL_PROP_GUID, NULL, | |
| 143 spa_guid(spa), src)) | |
| 144 return (err); | |
| 145 | |
| 146 if (err = spa_prop_add_list(*nvp, ZPOOL_PROP_HEALTH, NULL, | |
| 147 spa->spa_root_vdev->vdev_state, src)) | |
| 148 return (err); | |
| 149 | |
| 150 /* | |
| 151 * settable properties that are not stored in the pool property object. | |
| 152 */ | |
| 153 version = spa_version(spa); | |
| 154 if (version == zpool_prop_default_numeric(ZPOOL_PROP_VERSION)) | |
| 155 src = ZPROP_SRC_DEFAULT; | |
| 156 else | |
| 157 src = ZPROP_SRC_LOCAL; | |
| 158 if (err = spa_prop_add_list(*nvp, ZPOOL_PROP_VERSION, NULL, | |
| 159 version, src)) | |
| 160 return (err); | |
| 161 | |
| 162 if (spa->spa_root != NULL) { | |
| 163 src = ZPROP_SRC_LOCAL; | |
| 164 if (err = spa_prop_add_list(*nvp, ZPOOL_PROP_ALTROOT, | |
| 165 spa->spa_root, 0, src)) | |
| 166 return (err); | |
| 167 } | |
| 168 | |
| 5363 | 169 if (spa->spa_config_dir != NULL) { |
| 170 if (strcmp(spa->spa_config_dir, "none") == 0) { | |
| 171 err = spa_prop_add_list(*nvp, ZPOOL_PROP_CACHEFILE, | |
| 172 spa->spa_config_dir, 0, ZPROP_SRC_LOCAL); | |
| 173 } else { | |
| 174 len = strlen(spa->spa_config_dir) + | |
| 175 strlen(spa->spa_config_file) + 2; | |
| 176 cachefile = kmem_alloc(len, KM_SLEEP); | |
| 177 (void) snprintf(cachefile, len, "%s/%s", | |
| 178 spa->spa_config_dir, spa->spa_config_file); | |
| 179 err = spa_prop_add_list(*nvp, ZPOOL_PROP_CACHEFILE, | |
| 180 cachefile, 0, ZPROP_SRC_LOCAL); | |
| 181 kmem_free(cachefile, len); | |
| 182 } | |
| 183 | |
| 184 if (err) | |
| 185 return (err); | |
| 186 } | |
| 5094 | 187 |
| 188 return (0); | |
| 189 } | |
| 190 | |
| 191 /* | |
| 192 * Get zpool property values. | |
| 193 */ | |
| 194 int | |
| 195 spa_prop_get(spa_t *spa, nvlist_t **nvp) | |
| 196 { | |
| 197 zap_cursor_t zc; | |
| 198 zap_attribute_t za; | |
| 199 objset_t *mos = spa->spa_meta_objset; | |
| 200 int err; | |
| 201 | |
| 202 if (err = nvlist_alloc(nvp, NV_UNIQUE_NAME, KM_SLEEP)) | |
| 203 return (err); | |
| 204 | |
| 205 /* | |
| 206 * Get properties from the spa config. | |
| 207 */ | |
| 208 if (err = spa_prop_get_config(spa, nvp)) | |
| 209 goto out; | |
| 210 | |
| 211 mutex_enter(&spa->spa_props_lock); | |
| 212 /* If no pool property object, no more prop to get. */ | |
| 213 if (spa->spa_pool_props_object == 0) { | |
| 214 mutex_exit(&spa->spa_props_lock); | |
| 215 return (0); | |
| 216 } | |
| 217 | |
| 218 /* | |
| 219 * Get properties from the MOS pool property object. | |
| 220 */ | |
| 221 for (zap_cursor_init(&zc, mos, spa->spa_pool_props_object); | |
| 222 (err = zap_cursor_retrieve(&zc, &za)) == 0; | |
| 223 zap_cursor_advance(&zc)) { | |
| 224 uint64_t intval = 0; | |
| 225 char *strval = NULL; | |
| 226 zprop_source_t src = ZPROP_SRC_DEFAULT; | |
| 227 zpool_prop_t prop; | |
| 228 | |
| 229 if ((prop = zpool_name_to_prop(za.za_name)) == ZPROP_INVAL) | |
| 230 continue; | |
| 231 | |
| 232 switch (za.za_integer_length) { | |
| 233 case 8: | |
| 234 /* integer property */ | |
| 235 if (za.za_first_integer != | |
| 236 zpool_prop_default_numeric(prop)) | |
| 237 src = ZPROP_SRC_LOCAL; | |
| 238 | |
| 239 if (prop == ZPOOL_PROP_BOOTFS) { | |
| 240 dsl_pool_t *dp; | |
| 241 dsl_dataset_t *ds = NULL; | |
| 242 | |
| 243 dp = spa_get_dsl(spa); | |
| 244 rw_enter(&dp->dp_config_rwlock, RW_READER); | |
| 245 if (err = dsl_dataset_open_obj(dp, | |
| 246 za.za_first_integer, NULL, DS_MODE_NONE, | |
| 247 FTAG, &ds)) { | |
| 248 rw_exit(&dp->dp_config_rwlock); | |
| 249 break; | |
| 250 } | |
| 251 | |
| 252 strval = kmem_alloc( | |
| 253 MAXNAMELEN + strlen(MOS_DIR_NAME) + 1, | |
| 254 KM_SLEEP); | |
| 255 dsl_dataset_name(ds, strval); | |
| 256 dsl_dataset_close(ds, DS_MODE_NONE, FTAG); | |
| 257 rw_exit(&dp->dp_config_rwlock); | |
| 258 } else { | |
| 259 strval = NULL; | |
| 260 intval = za.za_first_integer; | |
| 261 } | |
| 262 | |
| 263 err = spa_prop_add_list(*nvp, prop, strval, | |
| 264 intval, src); | |
| 265 | |
| 266 if (strval != NULL) | |
| 267 kmem_free(strval, | |
| 268 MAXNAMELEN + strlen(MOS_DIR_NAME) + 1); | |
| 269 | |
| 270 break; | |
| 271 | |
| 272 case 1: | |
| 273 /* string property */ | |
| 274 strval = kmem_alloc(za.za_num_integers, KM_SLEEP); | |
| 275 err = zap_lookup(mos, spa->spa_pool_props_object, | |
| 276 za.za_name, 1, za.za_num_integers, strval); | |
| 277 if (err) { | |
| 278 kmem_free(strval, za.za_num_integers); | |
| 279 break; | |
| 280 } | |
| 281 err = spa_prop_add_list(*nvp, prop, strval, 0, src); | |
| 282 kmem_free(strval, za.za_num_integers); | |
| 283 break; | |
| 284 | |
| 285 default: | |
| 286 break; | |
| 287 } | |
| 288 } | |
| 289 zap_cursor_fini(&zc); | |
| 290 mutex_exit(&spa->spa_props_lock); | |
| 291 out: | |
| 292 if (err && err != ENOENT) { | |
| 293 nvlist_free(*nvp); | |
| 294 return (err); | |
| 295 } | |
| 296 | |
| 297 return (0); | |
| 298 } | |
| 299 | |
| 300 /* | |
| 301 * Validate the given pool properties nvlist and modify the list | |
| 302 * for the property values to be set. | |
| 303 */ | |
| 304 static int | |
| 305 spa_prop_validate(spa_t *spa, nvlist_t *props) | |
| 306 { | |
| 307 nvpair_t *elem; | |
| 308 int error = 0, reset_bootfs = 0; | |
| 309 uint64_t objnum; | |
| 310 | |
| 311 elem = NULL; | |
| 312 while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { | |
| 313 zpool_prop_t prop; | |
| 314 char *propname, *strval; | |
| 315 uint64_t intval; | |
| 316 vdev_t *rvdev; | |
| 317 char *vdev_type; | |
| 318 objset_t *os; | |
| 5363 | 319 char *slash; |
| 5094 | 320 |
| 321 propname = nvpair_name(elem); | |
| 322 | |
| 323 if ((prop = zpool_name_to_prop(propname)) == ZPROP_INVAL) | |
| 324 return (EINVAL); | |
| 325 | |
| 326 switch (prop) { | |
| 327 case ZPOOL_PROP_VERSION: | |
| 328 error = nvpair_value_uint64(elem, &intval); | |
| 329 if (!error && | |
| 330 (intval < spa_version(spa) || intval > SPA_VERSION)) | |
| 331 error = EINVAL; | |
| 332 break; | |
| 333 | |
| 334 case ZPOOL_PROP_DELEGATION: | |
| 335 case ZPOOL_PROP_AUTOREPLACE: | |
| 336 error = nvpair_value_uint64(elem, &intval); | |
| 337 if (!error && intval > 1) | |
| 338 error = EINVAL; | |
| 339 break; | |
| 340 | |
| 341 case ZPOOL_PROP_BOOTFS: | |
| 342 if (spa_version(spa) < SPA_VERSION_BOOTFS) { | |
| 343 error = ENOTSUP; | |
| 344 break; | |
| 345 } | |
| 346 | |
| 347 /* | |
| 348 * A bootable filesystem can not be on a RAIDZ pool | |
| 349 * nor a striped pool with more than 1 device. | |
| 350 */ | |
| 351 rvdev = spa->spa_root_vdev; | |
| 352 vdev_type = | |
| 353 rvdev->vdev_child[0]->vdev_ops->vdev_op_type; | |
| 354 if (rvdev->vdev_children > 1 || | |
| 355 strcmp(vdev_type, VDEV_TYPE_RAIDZ) == 0 || | |
| 356 strcmp(vdev_type, VDEV_TYPE_MISSING) == 0) { | |
| 357 error = ENOTSUP; | |
| 358 break; | |
| 359 } | |
| 360 | |
| 361 reset_bootfs = 1; | |
| 362 | |
| 363 error = nvpair_value_string(elem, &strval); | |
| 364 | |
| 365 if (!error) { | |
| 366 if (strval == NULL || strval[0] == '\0') { | |
| 367 objnum = zpool_prop_default_numeric( | |
| 368 ZPOOL_PROP_BOOTFS); | |
| 369 break; | |
| 370 } | |
| 371 | |
| 372 if (error = dmu_objset_open(strval, DMU_OST_ZFS, | |
| 373 DS_MODE_STANDARD | DS_MODE_READONLY, &os)) | |
| 374 break; | |
| 375 objnum = dmu_objset_id(os); | |
| 376 dmu_objset_close(os); | |
| 377 } | |
| 378 break; | |
| 5329 | 379 case ZPOOL_PROP_FAILUREMODE: |
| 380 error = nvpair_value_uint64(elem, &intval); | |
| 381 if (!error && (intval < ZIO_FAILURE_MODE_WAIT || | |
| 382 intval > ZIO_FAILURE_MODE_PANIC)) | |
| 383 error = EINVAL; | |
| 384 | |
| 385 /* | |
| 386 * This is a special case which only occurs when | |
| 387 * the pool has completely failed. This allows | |
| 388 * the user to change the in-core failmode property | |
| 389 * without syncing it out to disk (I/Os might | |
| 390 * currently be blocked). We do this by returning | |
| 391 * EIO to the caller (spa_prop_set) to trick it | |
| 392 * into thinking we encountered a property validation | |
| 393 * error. | |
| 394 */ | |
| 395 if (!error && spa_state(spa) == POOL_STATE_IO_FAILURE) { | |
| 396 spa->spa_failmode = intval; | |
| 397 error = EIO; | |
| 398 } | |
| 399 break; | |
| 5363 | 400 |
| 401 case ZPOOL_PROP_CACHEFILE: | |
| 402 if ((error = nvpair_value_string(elem, &strval)) != 0) | |
| 403 break; | |
| 404 | |
| 405 if (strval[0] == '\0') | |
| 406 break; | |
| 407 | |
| 408 if (strcmp(strval, "none") == 0) | |
| 409 break; | |
| 410 | |
| 411 if (strval[0] != '/') { | |
| 412 error = EINVAL; | |
| 413 break; | |
| 414 } | |
| 415 | |
| 416 slash = strrchr(strval, '/'); | |
| 417 ASSERT(slash != NULL); | |
| 418 | |
| 419 if (slash[1] == '\0' || strcmp(slash, "/.") == 0 || | |
| 420 strcmp(slash, "/..") == 0) | |
| 421 error = EINVAL; | |
| 422 break; | |
| 5094 | 423 } |
| 424 | |
| 425 if (error) | |
| 426 break; | |
| 427 } | |
| 428 | |
| 429 if (!error && reset_bootfs) { | |
| 430 error = nvlist_remove(props, | |
| 431 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), DATA_TYPE_STRING); | |
| 432 | |
| 433 if (!error) { | |
| 434 error = nvlist_add_uint64(props, | |
| 435 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), objnum); | |
| 436 } | |
| 437 } | |
| 438 | |
| 439 return (error); | |
| 440 } | |
| 441 | |
| 442 int | |
| 443 spa_prop_set(spa_t *spa, nvlist_t *nvp) | |
| 444 { | |
| 445 int error; | |
| 446 | |
| 447 if ((error = spa_prop_validate(spa, nvp)) != 0) | |
| 448 return (error); | |
| 449 | |
| 450 return (dsl_sync_task_do(spa_get_dsl(spa), NULL, spa_sync_props, | |
| 451 spa, nvp, 3)); | |
| 452 } | |
| 453 | |
| 454 /* | |
| 455 * If the bootfs property value is dsobj, clear it. | |
| 456 */ | |
| 457 void | |
| 458 spa_prop_clear_bootfs(spa_t *spa, uint64_t dsobj, dmu_tx_t *tx) | |
| 459 { | |
| 460 if (spa->spa_bootfs == dsobj && spa->spa_pool_props_object != 0) { | |
| 461 VERIFY(zap_remove(spa->spa_meta_objset, | |
| 462 spa->spa_pool_props_object, | |
| 463 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), tx) == 0); | |
| 464 spa->spa_bootfs = 0; | |
| 465 } | |
| 466 } | |
| 467 | |
| 789 | 468 /* |
| 469 * ========================================================================== | |
| 470 * SPA state manipulation (open/create/destroy/import/export) | |
| 471 * ========================================================================== | |
| 472 */ | |
| 473 | |
| 1544 | 474 static int |
| 475 spa_error_entry_compare(const void *a, const void *b) | |
| 476 { | |
| 477 spa_error_entry_t *sa = (spa_error_entry_t *)a; | |
| 478 spa_error_entry_t *sb = (spa_error_entry_t *)b; | |
| 479 int ret; | |
| 480 | |
| 481 ret = bcmp(&sa->se_bookmark, &sb->se_bookmark, | |
| 482 sizeof (zbookmark_t)); | |
| 483 | |
| 484 if (ret < 0) | |
| 485 return (-1); | |
| 486 else if (ret > 0) | |
| 487 return (1); | |
| 488 else | |
| 489 return (0); | |
| 490 } | |
| 491 | |
| 492 /* | |
| 493 * Utility function which retrieves copies of the current logs and | |
| 494 * re-initializes them in the process. | |
| 495 */ | |
| 496 void | |
| 497 spa_get_errlists(spa_t *spa, avl_tree_t *last, avl_tree_t *scrub) | |
| 498 { | |
| 499 ASSERT(MUTEX_HELD(&spa->spa_errlist_lock)); | |
| 500 | |
| 501 bcopy(&spa->spa_errlist_last, last, sizeof (avl_tree_t)); | |
| 502 bcopy(&spa->spa_errlist_scrub, scrub, sizeof (avl_tree_t)); | |
| 503 | |
| 504 avl_create(&spa->spa_errlist_scrub, | |
| 505 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
| 506 offsetof(spa_error_entry_t, se_avl)); | |
| 507 avl_create(&spa->spa_errlist_last, | |
| 508 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
| 509 offsetof(spa_error_entry_t, se_avl)); | |
| 510 } | |
| 511 | |
| 789 | 512 /* |
| 513 * Activate an uninitialized pool. | |
| 514 */ | |
| 515 static void | |
| 516 spa_activate(spa_t *spa) | |
| 517 { | |
| 518 int t; | |
| 519 | |
| 520 ASSERT(spa->spa_state == POOL_STATE_UNINITIALIZED); | |
| 521 | |
| 522 spa->spa_state = POOL_STATE_ACTIVE; | |
| 523 | |
| 524 spa->spa_normal_class = metaslab_class_create(); | |
| 4527 | 525 spa->spa_log_class = metaslab_class_create(); |
| 789 | 526 |
| 527 for (t = 0; t < ZIO_TYPES; t++) { | |
| 528 spa->spa_zio_issue_taskq[t] = taskq_create("spa_zio_issue", | |
| 2986 | 529 zio_taskq_threads, maxclsyspri, 50, INT_MAX, |
| 789 | 530 TASKQ_PREPOPULATE); |
| 531 spa->spa_zio_intr_taskq[t] = taskq_create("spa_zio_intr", | |
| 2986 | 532 zio_taskq_threads, maxclsyspri, 50, INT_MAX, |
| 789 | 533 TASKQ_PREPOPULATE); |
| 534 } | |
| 535 | |
| 536 list_create(&spa->spa_dirty_list, sizeof (vdev_t), | |
| 537 offsetof(vdev_t, vdev_dirty_node)); | |
| 5329 | 538 list_create(&spa->spa_zio_list, sizeof (zio_t), |
| 539 offsetof(zio_t, zio_link_node)); | |
| 789 | 540 |
| 541 txg_list_create(&spa->spa_vdev_txg_list, | |
| 542 offsetof(struct vdev, vdev_txg_node)); | |
| 1544 | 543 |
| 544 avl_create(&spa->spa_errlist_scrub, | |
| 545 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
| 546 offsetof(spa_error_entry_t, se_avl)); | |
| 547 avl_create(&spa->spa_errlist_last, | |
| 548 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
| 549 offsetof(spa_error_entry_t, se_avl)); | |
| 789 | 550 } |
| 551 | |
| 552 /* | |
| 553 * Opposite of spa_activate(). | |
| 554 */ | |
| 555 static void | |
| 556 spa_deactivate(spa_t *spa) | |
| 557 { | |
| 558 int t; | |
| 559 | |
| 560 ASSERT(spa->spa_sync_on == B_FALSE); | |
| 561 ASSERT(spa->spa_dsl_pool == NULL); | |
| 562 ASSERT(spa->spa_root_vdev == NULL); | |
| 563 | |
| 564 ASSERT(spa->spa_state != POOL_STATE_UNINITIALIZED); | |
| 565 | |
| 566 txg_list_destroy(&spa->spa_vdev_txg_list); | |
| 567 | |
| 568 list_destroy(&spa->spa_dirty_list); | |
| 5329 | 569 list_destroy(&spa->spa_zio_list); |
| 789 | 570 |
| 571 for (t = 0; t < ZIO_TYPES; t++) { | |
| 572 taskq_destroy(spa->spa_zio_issue_taskq[t]); | |
| 573 taskq_destroy(spa->spa_zio_intr_taskq[t]); | |
| 574 spa->spa_zio_issue_taskq[t] = NULL; | |
| 575 spa->spa_zio_intr_taskq[t] = NULL; | |
| 576 } | |
| 577 | |
| 578 metaslab_class_destroy(spa->spa_normal_class); | |
| 579 spa->spa_normal_class = NULL; | |
| 580 | |
| 4527 | 581 metaslab_class_destroy(spa->spa_log_class); |
| 582 spa->spa_log_class = NULL; | |
| 583 | |
| 1544 | 584 /* |
| 585 * If this was part of an import or the open otherwise failed, we may | |
| 586 * still have errors left in the queues. Empty them just in case. | |
| 587 */ | |
| 588 spa_errlog_drain(spa); | |
| 589 | |
| 590 avl_destroy(&spa->spa_errlist_scrub); | |
| 591 avl_destroy(&spa->spa_errlist_last); | |
| 592 | |
| 789 | 593 spa->spa_state = POOL_STATE_UNINITIALIZED; |
| 594 } | |
| 595 | |
| 596 /* | |
| 597 * Verify a pool configuration, and construct the vdev tree appropriately. This | |
| 598 * will create all the necessary vdevs in the appropriate layout, with each vdev | |
| 599 * in the CLOSED state. This will prep the pool before open/creation/import. | |
| 600 * All vdev validation is done by the vdev_alloc() routine. | |
| 601 */ | |
| 2082 | 602 static int |
| 603 spa_config_parse(spa_t *spa, vdev_t **vdp, nvlist_t *nv, vdev_t *parent, | |
| 604 uint_t id, int atype) | |
| 789 | 605 { |
| 606 nvlist_t **child; | |
| 607 uint_t c, children; | |
| 2082 | 608 int error; |
| 609 | |
| 610 if ((error = vdev_alloc(spa, vdp, nv, parent, id, atype)) != 0) | |
| 611 return (error); | |
| 612 | |
| 613 if ((*vdp)->vdev_ops->vdev_op_leaf) | |
| 614 return (0); | |
| 789 | 615 |
| 616 if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, | |
| 617 &child, &children) != 0) { | |
| 2082 | 618 vdev_free(*vdp); |
| 619 *vdp = NULL; | |
| 620 return (EINVAL); | |
| 789 | 621 } |
| 622 | |
| 623 for (c = 0; c < children; c++) { | |
| 2082 | 624 vdev_t *vd; |
| 625 if ((error = spa_config_parse(spa, &vd, child[c], *vdp, c, | |
| 626 atype)) != 0) { | |
| 627 vdev_free(*vdp); | |
| 628 *vdp = NULL; | |
| 629 return (error); | |
| 789 | 630 } |
| 631 } | |
| 632 | |
| 2082 | 633 ASSERT(*vdp != NULL); |
| 634 | |
| 635 return (0); | |
| 789 | 636 } |
| 637 | |
| 638 /* | |
| 639 * Opposite of spa_load(). | |
| 640 */ | |
| 641 static void | |
| 642 spa_unload(spa_t *spa) | |
| 643 { | |
| 2082 | 644 int i; |
| 645 | |
| 789 | 646 /* |
| 1544 | 647 * Stop async tasks. |
| 648 */ | |
| 649 spa_async_suspend(spa); | |
| 650 | |
| 651 /* | |
| 789 | 652 * Stop syncing. |
| 653 */ | |
| 654 if (spa->spa_sync_on) { | |
| 655 txg_sync_stop(spa->spa_dsl_pool); | |
| 656 spa->spa_sync_on = B_FALSE; | |
| 657 } | |
| 658 | |
| 659 /* | |
| 660 * Wait for any outstanding prefetch I/O to complete. | |
| 661 */ | |
| 1544 | 662 spa_config_enter(spa, RW_WRITER, FTAG); |
| 663 spa_config_exit(spa, FTAG); | |
| 789 | 664 |
| 665 /* | |
| 5450 | 666 * Drop and purge level 2 cache |
| 667 */ | |
| 668 spa_l2cache_drop(spa); | |
| 669 | |
| 670 /* | |
| 789 | 671 * Close the dsl pool. |
| 672 */ | |
| 673 if (spa->spa_dsl_pool) { | |
| 674 dsl_pool_close(spa->spa_dsl_pool); | |
| 675 spa->spa_dsl_pool = NULL; | |
| 676 } | |
| 677 | |
| 678 /* | |
| 679 * Close all vdevs. | |
| 680 */ | |
|
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681 if (spa->spa_root_vdev) |
| 789 | 682 vdev_free(spa->spa_root_vdev); |
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683 ASSERT(spa->spa_root_vdev == NULL); |
| 1544 | 684 |
| 5450 | 685 for (i = 0; i < spa->spa_spares.sav_count; i++) |
| 686 vdev_free(spa->spa_spares.sav_vdevs[i]); | |
| 687 if (spa->spa_spares.sav_vdevs) { | |
| 688 kmem_free(spa->spa_spares.sav_vdevs, | |
| 689 spa->spa_spares.sav_count * sizeof (void *)); | |
| 690 spa->spa_spares.sav_vdevs = NULL; | |
| 691 } | |
| 692 if (spa->spa_spares.sav_config) { | |
| 693 nvlist_free(spa->spa_spares.sav_config); | |
| 694 spa->spa_spares.sav_config = NULL; | |
| 2082 | 695 } |
| 5450 | 696 |
| 697 for (i = 0; i < spa->spa_l2cache.sav_count; i++) | |
| 698 vdev_free(spa->spa_l2cache.sav_vdevs[i]); | |
| 699 if (spa->spa_l2cache.sav_vdevs) { | |
| 700 kmem_free(spa->spa_l2cache.sav_vdevs, | |
| 701 spa->spa_l2cache.sav_count * sizeof (void *)); | |
| 702 spa->spa_l2cache.sav_vdevs = NULL; | |
| 703 } | |
| 704 if (spa->spa_l2cache.sav_config) { | |
| 705 nvlist_free(spa->spa_l2cache.sav_config); | |
| 706 spa->spa_l2cache.sav_config = NULL; | |
| 2082 | 707 } |
| 708 | |
| 1544 | 709 spa->spa_async_suspended = 0; |
| 789 | 710 } |
| 711 | |
| 712 /* | |
| 2082 | 713 * Load (or re-load) the current list of vdevs describing the active spares for |
| 714 * this pool. When this is called, we have some form of basic information in | |
| 5450 | 715 * 'spa_spares.sav_config'. We parse this into vdevs, try to open them, and |
| 716 * then re-generate a more complete list including status information. | |
| 2082 | 717 */ |
| 718 static void | |
| 719 spa_load_spares(spa_t *spa) | |
| 720 { | |
| 721 nvlist_t **spares; | |
| 722 uint_t nspares; | |
| 723 int i; | |
|
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724 vdev_t *vd, *tvd; |
| 2082 | 725 |
| 726 /* | |
| 727 * First, close and free any existing spare vdevs. | |
| 728 */ | |
| 5450 | 729 for (i = 0; i < spa->spa_spares.sav_count; i++) { |
| 730 vd = spa->spa_spares.sav_vdevs[i]; | |
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731 |
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732 /* Undo the call to spa_activate() below */ |
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733 if ((tvd = spa_lookup_by_guid(spa, vd->vdev_guid)) != NULL && |
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734 tvd->vdev_isspare) |
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735 spa_spare_remove(tvd); |
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736 vdev_close(vd); |
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737 vdev_free(vd); |
| 2082 | 738 } |
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739 |
| 5450 | 740 if (spa->spa_spares.sav_vdevs) |
| 741 kmem_free(spa->spa_spares.sav_vdevs, | |
| 742 spa->spa_spares.sav_count * sizeof (void *)); | |
| 743 | |
| 744 if (spa->spa_spares.sav_config == NULL) | |
| 2082 | 745 nspares = 0; |
| 746 else | |
| 5450 | 747 VERIFY(nvlist_lookup_nvlist_array(spa->spa_spares.sav_config, |
| 2082 | 748 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); |
| 749 | |
| 5450 | 750 spa->spa_spares.sav_count = (int)nspares; |
| 751 spa->spa_spares.sav_vdevs = NULL; | |
| 2082 | 752 |
| 753 if (nspares == 0) | |
| 754 return; | |
| 755 | |
| 756 /* | |
| 757 * Construct the array of vdevs, opening them to get status in the | |
|
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758 * process. For each spare, there is potentially two different vdev_t |
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759 * structures associated with it: one in the list of spares (used only |
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760 * for basic validation purposes) and one in the active vdev |
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761 * configuration (if it's spared in). During this phase we open and |
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762 * validate each vdev on the spare list. If the vdev also exists in the |
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763 * active configuration, then we also mark this vdev as an active spare. |
| 2082 | 764 */ |
| 5450 | 765 spa->spa_spares.sav_vdevs = kmem_alloc(nspares * sizeof (void *), |
| 766 KM_SLEEP); | |
| 767 for (i = 0; i < spa->spa_spares.sav_count; i++) { | |
| 2082 | 768 VERIFY(spa_config_parse(spa, &vd, spares[i], NULL, 0, |
| 769 VDEV_ALLOC_SPARE) == 0); | |
| 770 ASSERT(vd != NULL); | |
| 771 | |
| 5450 | 772 spa->spa_spares.sav_vdevs[i] = vd; |
| 2082 | 773 |
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774 if ((tvd = spa_lookup_by_guid(spa, vd->vdev_guid)) != NULL) { |
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775 if (!tvd->vdev_isspare) |
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776 spa_spare_add(tvd); |
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777 |
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778 /* |
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779 * We only mark the spare active if we were successfully |
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780 * able to load the vdev. Otherwise, importing a pool |
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781 * with a bad active spare would result in strange |
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782 * behavior, because multiple pool would think the spare |
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783 * is actively in use. |
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784 * |
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785 * There is a vulnerability here to an equally bizarre |
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786 * circumstance, where a dead active spare is later |
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787 * brought back to life (onlined or otherwise). Given |
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788 * the rarity of this scenario, and the extra complexity |
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789 * it adds, we ignore the possibility. |
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790 */ |
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791 if (!vdev_is_dead(tvd)) |
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792 spa_spare_activate(tvd); |
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793 } |
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794 |
| 2082 | 795 if (vdev_open(vd) != 0) |
| 796 continue; | |
| 797 | |
| 798 vd->vdev_top = vd; | |
| 5450 | 799 if (vdev_validate_aux(vd) == 0) |
| 800 spa_spare_add(vd); | |
| 2082 | 801 } |
| 802 | |
| 803 /* | |
| 804 * Recompute the stashed list of spares, with status information | |
| 805 * this time. | |
| 806 */ | |
| 5450 | 807 VERIFY(nvlist_remove(spa->spa_spares.sav_config, ZPOOL_CONFIG_SPARES, |
| 2082 | 808 DATA_TYPE_NVLIST_ARRAY) == 0); |
| 809 | |
| 5450 | 810 spares = kmem_alloc(spa->spa_spares.sav_count * sizeof (void *), |
| 811 KM_SLEEP); | |
| 812 for (i = 0; i < spa->spa_spares.sav_count; i++) | |
| 813 spares[i] = vdev_config_generate(spa, | |
| 814 spa->spa_spares.sav_vdevs[i], B_TRUE, B_TRUE, B_FALSE); | |
| 815 VERIFY(nvlist_add_nvlist_array(spa->spa_spares.sav_config, | |
| 816 ZPOOL_CONFIG_SPARES, spares, spa->spa_spares.sav_count) == 0); | |
| 817 for (i = 0; i < spa->spa_spares.sav_count; i++) | |
| 2082 | 818 nvlist_free(spares[i]); |
| 5450 | 819 kmem_free(spares, spa->spa_spares.sav_count * sizeof (void *)); |
| 820 } | |
| 821 | |
| 822 /* | |
| 823 * Load (or re-load) the current list of vdevs describing the active l2cache for | |
| 824 * this pool. When this is called, we have some form of basic information in | |
| 825 * 'spa_l2cache.sav_config'. We parse this into vdevs, try to open them, and | |
| 826 * then re-generate a more complete list including status information. | |
| 827 * Devices which are already active have their details maintained, and are | |
| 828 * not re-opened. | |
| 829 */ | |
| 830 static void | |
| 831 spa_load_l2cache(spa_t *spa) | |
| 832 { | |
| 833 nvlist_t **l2cache; | |
| 834 uint_t nl2cache; | |
| 835 int i, j, oldnvdevs; | |
| 836 uint64_t guid; | |
| 837 vdev_t *vd, **oldvdevs, **newvdevs; | |
| 838 spa_aux_vdev_t *sav = &spa->spa_l2cache; | |
| 839 | |
| 840 if (sav->sav_config != NULL) { | |
| 841 VERIFY(nvlist_lookup_nvlist_array(sav->sav_config, | |
| 842 ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0); | |
| 843 newvdevs = kmem_alloc(nl2cache * sizeof (void *), KM_SLEEP); | |
| 844 } else { | |
| 845 nl2cache = 0; | |
| 846 } | |
| 847 | |
| 848 oldvdevs = sav->sav_vdevs; | |
| 849 oldnvdevs = sav->sav_count; | |
| 850 sav->sav_vdevs = NULL; | |
| 851 sav->sav_count = 0; | |
| 852 | |
| 853 /* | |
| 854 * Process new nvlist of vdevs. | |
| 855 */ | |
| 856 for (i = 0; i < nl2cache; i++) { | |
| 857 VERIFY(nvlist_lookup_uint64(l2cache[i], ZPOOL_CONFIG_GUID, | |
| 858 &guid) == 0); | |
| 859 | |
| 860 newvdevs[i] = NULL; | |
| 861 for (j = 0; j < oldnvdevs; j++) { | |
| 862 vd = oldvdevs[j]; | |
| 863 if (vd != NULL && guid == vd->vdev_guid) { | |
| 864 /* | |
| 865 * Retain previous vdev for add/remove ops. | |
| 866 */ | |
| 867 newvdevs[i] = vd; | |
| 868 oldvdevs[j] = NULL; | |
| 869 break; | |
| 870 } | |
| 871 } | |
| 872 | |
| 873 if (newvdevs[i] == NULL) { | |
| 874 /* | |
| 875 * Create new vdev | |
| 876 */ | |
| 877 VERIFY(spa_config_parse(spa, &vd, l2cache[i], NULL, 0, | |
| 878 VDEV_ALLOC_L2CACHE) == 0); | |
| 879 ASSERT(vd != NULL); | |
| 880 newvdevs[i] = vd; | |
| 881 | |
| 882 /* | |
| 883 * Commit this vdev as an l2cache device, | |
| 884 * even if it fails to open. | |
| 885 */ | |
| 886 spa_l2cache_add(vd); | |
| 887 | |
| 888 if (vdev_open(vd) != 0) | |
| 889 continue; | |
| 890 | |
| 891 vd->vdev_top = vd; | |
| 892 (void) vdev_validate_aux(vd); | |
| 893 | |
| 894 if (!vdev_is_dead(vd)) { | |
| 895 uint64_t size; | |
| 896 size = vdev_get_rsize(vd); | |
| 897 ASSERT3U(size, >, 0); | |
| 898 if (spa_mode & FWRITE) { | |
| 899 l2arc_add_vdev(spa, vd, | |
| 900 VDEV_LABEL_START_SIZE, | |
| 901 size - VDEV_LABEL_START_SIZE); | |
| 902 } | |
| 903 spa_l2cache_activate(vd); | |
| 904 } | |
| 905 } | |
| 906 } | |
| 907 | |
| 908 /* | |
| 909 * Purge vdevs that were dropped | |
| 910 */ | |
| 911 for (i = 0; i < oldnvdevs; i++) { | |
| 912 uint64_t pool; | |
| 913 | |
| 914 vd = oldvdevs[i]; | |
| 915 if (vd != NULL) { | |
| 916 if (spa_mode & FWRITE && | |
| 917 spa_l2cache_exists(vd->vdev_guid, &pool) && | |
| 918 pool != 0ULL) { | |
| 919 l2arc_remove_vdev(vd); | |
| 920 } | |
| 921 (void) vdev_close(vd); | |
| 922 spa_l2cache_remove(vd); | |
| 923 } | |
| 924 } | |
| 925 | |
| 926 if (oldvdevs) | |
| 927 kmem_free(oldvdevs, oldnvdevs * sizeof (void *)); | |
| 928 | |
| 929 if (sav->sav_config == NULL) | |
| 930 goto out; | |
| 931 | |
| 932 sav->sav_vdevs = newvdevs; | |
| 933 sav->sav_count = (int)nl2cache; | |
| 934 | |
| 935 /* | |
| 936 * Recompute the stashed list of l2cache devices, with status | |
| 937 * information this time. | |
| 938 */ | |
| 939 VERIFY(nvlist_remove(sav->sav_config, ZPOOL_CONFIG_L2CACHE, | |
| 940 DATA_TYPE_NVLIST_ARRAY) == 0); | |
| 941 | |
| 942 l2cache = kmem_alloc(sav->sav_count * sizeof (void *), KM_SLEEP); | |
| 943 for (i = 0; i < sav->sav_count; i++) | |
| 944 l2cache[i] = vdev_config_generate(spa, | |
| 945 sav->sav_vdevs[i], B_TRUE, B_FALSE, B_TRUE); | |
| 946 VERIFY(nvlist_add_nvlist_array(sav->sav_config, | |
| 947 ZPOOL_CONFIG_L2CACHE, l2cache, sav->sav_count) == 0); | |
| 948 out: | |
| 949 for (i = 0; i < sav->sav_count; i++) | |
| 950 nvlist_free(l2cache[i]); | |
| 951 if (sav->sav_count) | |
| 952 kmem_free(l2cache, sav->sav_count * sizeof (void *)); | |
| 2082 | 953 } |
| 954 | |
| 955 static int | |
| 956 load_nvlist(spa_t *spa, uint64_t obj, nvlist_t **value) | |
| 957 { | |
| 958 dmu_buf_t *db; | |
| 959 char *packed = NULL; | |
| 960 size_t nvsize = 0; | |
| 961 int error; | |
| 962 *value = NULL; | |
| 963 | |
| 964 VERIFY(0 == dmu_bonus_hold(spa->spa_meta_objset, obj, FTAG, &db)); | |
| 965 nvsize = *(uint64_t *)db->db_data; | |
| 966 dmu_buf_rele(db, FTAG); | |
| 967 | |
| 968 packed = kmem_alloc(nvsize, KM_SLEEP); | |
| 969 error = dmu_read(spa->spa_meta_objset, obj, 0, nvsize, packed); | |
| 970 if (error == 0) | |
| 971 error = nvlist_unpack(packed, nvsize, value, 0); | |
| 972 kmem_free(packed, nvsize); | |
| 973 | |
| 974 return (error); | |
| 975 } | |
| 976 | |
| 977 /* | |
| 4451 | 978 * Checks to see if the given vdev could not be opened, in which case we post a |
| 979 * sysevent to notify the autoreplace code that the device has been removed. | |
| 980 */ | |
| 981 static void | |
| 982 spa_check_removed(vdev_t *vd) | |
| 983 { | |
| 984 int c; | |
| 985 | |
| 986 for (c = 0; c < vd->vdev_children; c++) | |
| 987 spa_check_removed(vd->vdev_child[c]); | |
| 988 | |
| 989 if (vd->vdev_ops->vdev_op_leaf && vdev_is_dead(vd)) { | |
| 990 zfs_post_autoreplace(vd->vdev_spa, vd); | |
| 991 spa_event_notify(vd->vdev_spa, vd, ESC_ZFS_VDEV_CHECK); | |
| 992 } | |
| 993 } | |
| 994 | |
| 995 /* | |
| 789 | 996 * Load an existing storage pool, using the pool's builtin spa_config as a |
| 1544 | 997 * source of configuration information. |
| 789 | 998 */ |
| 999 static int | |
| 1544 | 1000 spa_load(spa_t *spa, nvlist_t *config, spa_load_state_t state, int mosconfig) |
| 789 | 1001 { |
| 1002 int error = 0; | |
| 1003 nvlist_t *nvroot = NULL; | |
| 1004 vdev_t *rvd; | |
| 1005 uberblock_t *ub = &spa->spa_uberblock; | |
|
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6398664 zpool detach: missing argument to error message causes core dump
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|
1006 uint64_t config_cache_txg = spa->spa_config_txg; |
| 789 | 1007 uint64_t pool_guid; |
| 2082 | 1008 uint64_t version; |
| 789 | 1009 zio_t *zio; |
| 4451 | 1010 uint64_t autoreplace = 0; |
| 789 | 1011 |
| 1544 | 1012 spa->spa_load_state = state; |
|
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6398664 zpool detach: missing argument to error message causes core dump
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|
1013 |
| 789 | 1014 if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvroot) || |
| 1733 | 1015 nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &pool_guid)) { |
| 1544 | 1016 error = EINVAL; |
| 1017 goto out; | |
| 1018 } | |
| 789 | 1019 |
| 2082 | 1020 /* |
| 1021 * Versioning wasn't explicitly added to the label until later, so if | |
| 1022 * it's not present treat it as the initial version. | |
| 1023 */ | |
| 1024 if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION, &version) != 0) | |
| 4577 | 1025 version = SPA_VERSION_INITIAL; |
| 2082 | 1026 |
| 1733 | 1027 (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG, |
| 1028 &spa->spa_config_txg); | |
| 1029 | |
|
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|
1030 if ((state == SPA_LOAD_IMPORT || state == SPA_LOAD_TRYIMPORT) && |
| 1544 | 1031 spa_guid_exists(pool_guid, 0)) { |
| 1032 error = EEXIST; | |
| 1033 goto out; | |
| 1034 } | |
| 789 | 1035 |
|
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6433717 offline devices should not be marked persistently unavailble
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2082
diff
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|
1036 spa->spa_load_guid = pool_guid; |
|
73de7a781492
6433717 offline devices should not be marked persistently unavailble
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diff
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|
1037 |
| 789 | 1038 /* |
| 2082 | 1039 * Parse the configuration into a vdev tree. We explicitly set the |
| 1040 * value that will be returned by spa_version() since parsing the | |
| 1041 * configuration requires knowing the version number. | |
| 789 | 1042 */ |
| 1544 | 1043 spa_config_enter(spa, RW_WRITER, FTAG); |
| 2082 | 1044 spa->spa_ubsync.ub_version = version; |
| 1045 error = spa_config_parse(spa, &rvd, nvroot, NULL, 0, VDEV_ALLOC_LOAD); | |
| 1544 | 1046 spa_config_exit(spa, FTAG); |
| 789 | 1047 |
| 2082 | 1048 if (error != 0) |
| 1544 | 1049 goto out; |
| 789 | 1050 |
|
1585
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6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
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diff
changeset
|
1051 ASSERT(spa->spa_root_vdev == rvd); |
| 789 | 1052 ASSERT(spa_guid(spa) == pool_guid); |
| 1053 | |
| 1054 /* | |
| 1055 * Try to open all vdevs, loading each label in the process. | |
| 1056 */ | |
|
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|
1057 error = vdev_open(rvd); |
|
4390ea390a1e
6386594 zdb message should be clearer when failing for lack of permissions
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diff
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|
1058 if (error != 0) |
| 1544 | 1059 goto out; |
| 789 | 1060 |
| 1061 /* | |
|
1986
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6424405 zpool import destroyed_pool can damage existing pool using same devices
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diff
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|
1062 * Validate the labels for all leaf vdevs. We need to grab the config |
|
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
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|
1063 * lock because all label I/O is done with the ZIO_FLAG_CONFIG_HELD |
|
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
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parents:
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|
1064 * flag. |
|
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
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|
1065 */ |
|
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
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|
1066 spa_config_enter(spa, RW_READER, FTAG); |
|
628267397204
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|
1067 error = vdev_validate(rvd); |
|
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
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|
1068 spa_config_exit(spa, FTAG); |
|
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|
1069 |
|
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|
1070 if (error != 0) |
|
1986
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6424405 zpool import destroyed_pool can damage existing pool using same devices
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|
1071 goto out; |
|
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6424405 zpool import destroyed_pool can damage existing pool using same devices
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|
1072 |
|
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6424405 zpool import destroyed_pool can damage existing pool using same devices
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|
1073 if (rvd->vdev_state <= VDEV_STATE_CANT_OPEN) { |
|
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|
1074 error = ENXIO; |
|
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|
1075 goto out; |
|
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|
1076 } |
|
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
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|
1077 |
|
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|
1078 /* |
| 789 | 1079 * Find the best uberblock. |
| 1080 */ | |
| 1081 bzero(ub, sizeof (uberblock_t)); | |
| 1082 | |
| 1083 zio = zio_root(spa, NULL, NULL, | |
| 1084 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE); | |
| 1085 vdev_uberblock_load(zio, rvd, ub); | |
| 1086 error = zio_wait(zio); | |
| 1087 | |
| 1088 /* | |
| 1089 * If we weren't able to find a single valid uberblock, return failure. | |
| 1090 */ | |
| 1091 if (ub->ub_txg == 0) { | |
| 1760 | 1092 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1093 VDEV_AUX_CORRUPT_DATA); | |
| 1544 | 1094 error = ENXIO; |
| 1095 goto out; | |
| 1096 } | |
| 1097 | |
| 1098 /* | |
| 1099 * If the pool is newer than the code, we can't open it. | |
| 1100 */ | |
| 4577 | 1101 if (ub->ub_version > SPA_VERSION) { |
| 1760 | 1102 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1103 VDEV_AUX_VERSION_NEWER); | |
| 1544 | 1104 error = ENOTSUP; |
| 1105 goto out; | |
| 789 | 1106 } |
| 1107 | |
| 1108 /* | |
| 1109 * If the vdev guid sum doesn't match the uberblock, we have an | |
| 1110 * incomplete configuration. | |
| 1111 */ | |
| 1732 | 1112 if (rvd->vdev_guid_sum != ub->ub_guid_sum && mosconfig) { |
| 1544 | 1113 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1114 VDEV_AUX_BAD_GUID_SUM); | |
| 1115 error = ENXIO; | |
| 1116 goto out; | |
| 789 | 1117 } |
| 1118 | |
| 1119 /* | |
| 1120 * Initialize internal SPA structures. | |
| 1121 */ | |
| 1122 spa->spa_state = POOL_STATE_ACTIVE; | |
| 1123 spa->spa_ubsync = spa->spa_uberblock; | |
| 1124 spa->spa_first_txg = spa_last_synced_txg(spa) + 1; | |
| 1544 | 1125 error = dsl_pool_open(spa, spa->spa_first_txg, &spa->spa_dsl_pool); |
| 1126 if (error) { | |
| 1127 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1128 VDEV_AUX_CORRUPT_DATA); | |
| 1129 goto out; | |
| 1130 } | |
| 789 | 1131 spa->spa_meta_objset = spa->spa_dsl_pool->dp_meta_objset; |
| 1132 | |
| 1544 | 1133 if (zap_lookup(spa->spa_meta_objset, |
| 789 | 1134 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CONFIG, |
| 1544 | 1135 sizeof (uint64_t), 1, &spa->spa_config_object) != 0) { |
| 1136 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1137 VDEV_AUX_CORRUPT_DATA); | |
| 1138 error = EIO; | |
| 1139 goto out; | |
| 1140 } | |
| 789 | 1141 |
| 1142 if (!mosconfig) { | |
| 2082 | 1143 nvlist_t *newconfig; |
|
3975
6674f5d79069
6282725 hostname/hostid should be stored in the label
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3912
diff
changeset
|
1144 uint64_t hostid; |
| 2082 | 1145 |
| 1146 if (load_nvlist(spa, spa->spa_config_object, &newconfig) != 0) { | |
| 1544 | 1147 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1148 VDEV_AUX_CORRUPT_DATA); | |
| 1149 error = EIO; | |
| 1150 goto out; | |
| 1151 } | |
| 789 | 1152 |
|
3975
6674f5d79069
6282725 hostname/hostid should be stored in the label
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parents:
3912
diff
changeset
|
1153 if (nvlist_lookup_uint64(newconfig, ZPOOL_CONFIG_HOSTID, |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1154 &hostid) == 0) { |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1155 char *hostname; |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1156 unsigned long myhostid = 0; |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1157 |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
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diff
changeset
|
1158 VERIFY(nvlist_lookup_string(newconfig, |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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3912
diff
changeset
|
1159 ZPOOL_CONFIG_HOSTNAME, &hostname) == 0); |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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parents:
3912
diff
changeset
|
1160 |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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3912
diff
changeset
|
1161 (void) ddi_strtoul(hw_serial, NULL, 10, &myhostid); |
|
4178
ad95fd86760b
6553537 zfs root fails to boot from a snv_63+zfsboot-pfinstall netinstall image
lling
parents:
4070
diff
changeset
|
1162 if (hostid != 0 && myhostid != 0 && |
|
ad95fd86760b
6553537 zfs root fails to boot from a snv_63+zfsboot-pfinstall netinstall image
lling
parents:
4070
diff
changeset
|
1163 (unsigned long)hostid != myhostid) { |
|
3975
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1164 cmn_err(CE_WARN, "pool '%s' could not be " |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1165 "loaded as it was last accessed by " |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1166 "another system (host: %s hostid: 0x%lx). " |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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parents:
3912
diff
changeset
|
1167 "See: http://www.sun.com/msg/ZFS-8000-EY", |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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parents:
3912
diff
changeset
|
1168 spa->spa_name, hostname, |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1169 (unsigned long)hostid); |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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parents:
3912
diff
changeset
|
1170 error = EBADF; |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1171 goto out; |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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3912
diff
changeset
|
1172 } |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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|
1173 } |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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|
1174 |
| 789 | 1175 spa_config_set(spa, newconfig); |
| 1176 spa_unload(spa); | |
| 1177 spa_deactivate(spa); | |
| 1178 spa_activate(spa); | |
| 1179 | |
| 1544 | 1180 return (spa_load(spa, newconfig, state, B_TRUE)); |
| 1181 } | |
| 1182 | |
| 1183 if (zap_lookup(spa->spa_meta_objset, | |
| 1184 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SYNC_BPLIST, | |
| 1185 sizeof (uint64_t), 1, &spa->spa_sync_bplist_obj) != 0) { | |
| 1186 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1187 VDEV_AUX_CORRUPT_DATA); | |
| 1188 error = EIO; | |
| 1189 goto out; | |
| 789 | 1190 } |
| 1191 | |
| 1544 | 1192 /* |
| 2082 | 1193 * Load the bit that tells us to use the new accounting function |
| 1194 * (raid-z deflation). If we have an older pool, this will not | |
| 1195 * be present. | |
| 1196 */ | |
| 1197 error = zap_lookup(spa->spa_meta_objset, | |
| 1198 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
| 1199 sizeof (uint64_t), 1, &spa->spa_deflate); | |
| 1200 if (error != 0 && error != ENOENT) { | |
| 1201 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1202 VDEV_AUX_CORRUPT_DATA); | |
| 1203 error = EIO; | |
| 1204 goto out; | |
| 1205 } | |
| 1206 | |
| 1207 /* | |
| 1544 | 1208 * Load the persistent error log. If we have an older pool, this will |
| 1209 * not be present. | |
| 1210 */ | |
| 1211 error = zap_lookup(spa->spa_meta_objset, | |
| 1212 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_ERRLOG_LAST, | |
| 1213 sizeof (uint64_t), 1, &spa->spa_errlog_last); | |
|
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6410711 intent log blocks don't get invited to pool parties
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diff
changeset
|
1214 if (error != 0 && error != ENOENT) { |
| 1544 | 1215 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1216 VDEV_AUX_CORRUPT_DATA); | |
| 1217 error = EIO; | |
| 1218 goto out; | |
| 1219 } | |
| 1220 | |
| 1221 error = zap_lookup(spa->spa_meta_objset, | |
| 1222 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_ERRLOG_SCRUB, | |
| 1223 sizeof (uint64_t), 1, &spa->spa_errlog_scrub); | |
| 1224 if (error != 0 && error != ENOENT) { | |
| 1225 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1226 VDEV_AUX_CORRUPT_DATA); | |
| 1227 error = EIO; | |
| 1228 goto out; | |
| 1229 } | |
| 789 | 1230 |
| 1231 /* | |
| 2926 | 1232 * Load the history object. If we have an older pool, this |
| 1233 * will not be present. | |
| 1234 */ | |
| 1235 error = zap_lookup(spa->spa_meta_objset, | |
| 1236 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_HISTORY, | |
| 1237 sizeof (uint64_t), 1, &spa->spa_history); | |
| 1238 if (error != 0 && error != ENOENT) { | |
| 1239 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1240 VDEV_AUX_CORRUPT_DATA); | |
| 1241 error = EIO; | |
| 1242 goto out; | |
| 1243 } | |
| 1244 | |
| 1245 /* | |
| 2082 | 1246 * Load any hot spares for this pool. |
| 1247 */ | |
| 1248 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, | |
| 5450 | 1249 DMU_POOL_SPARES, sizeof (uint64_t), 1, &spa->spa_spares.sav_object); |
| 2082 | 1250 if (error != 0 && error != ENOENT) { |
| 1251 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1252 VDEV_AUX_CORRUPT_DATA); | |
| 1253 error = EIO; | |
| 1254 goto out; | |
| 1255 } | |
| 1256 if (error == 0) { | |
| 4577 | 1257 ASSERT(spa_version(spa) >= SPA_VERSION_SPARES); |
| 5450 | 1258 if (load_nvlist(spa, spa->spa_spares.sav_object, |
| 1259 &spa->spa_spares.sav_config) != 0) { | |
| 2082 | 1260 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1261 VDEV_AUX_CORRUPT_DATA); | |
| 1262 error = EIO; | |
| 1263 goto out; | |
| 1264 } | |
| 1265 | |
| 1266 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 1267 spa_load_spares(spa); | |
| 1268 spa_config_exit(spa, FTAG); | |
| 1269 } | |
| 1270 | |
| 5450 | 1271 /* |
| 1272 * Load any level 2 ARC devices for this pool. | |
| 1273 */ | |
| 1274 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, | |
| 1275 DMU_POOL_L2CACHE, sizeof (uint64_t), 1, | |
| 1276 &spa->spa_l2cache.sav_object); | |
| 1277 if (error != 0 && error != ENOENT) { | |
| 1278 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1279 VDEV_AUX_CORRUPT_DATA); | |
| 1280 error = EIO; | |
| 1281 goto out; | |
| 1282 } | |
| 1283 if (error == 0) { | |
| 1284 ASSERT(spa_version(spa) >= SPA_VERSION_L2CACHE); | |
| 1285 if (load_nvlist(spa, spa->spa_l2cache.sav_object, | |
| 1286 &spa->spa_l2cache.sav_config) != 0) { | |
| 1287 vdev_set_state(rvd, B_TRUE, | |
| 1288 VDEV_STATE_CANT_OPEN, | |
| 1289 VDEV_AUX_CORRUPT_DATA); | |
| 1290 error = EIO; | |
| 1291 goto out; | |
| 1292 } | |
| 1293 | |
| 1294 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 1295 spa_load_l2cache(spa); | |
| 1296 spa_config_exit(spa, FTAG); | |
| 1297 } | |
| 1298 | |
| 5094 | 1299 spa->spa_delegation = zpool_prop_default_numeric(ZPOOL_PROP_DELEGATION); |
| 4543 | 1300 |
| 3912 | 1301 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, |
| 1302 DMU_POOL_PROPS, sizeof (uint64_t), 1, &spa->spa_pool_props_object); | |
| 1303 | |
| 1304 if (error && error != ENOENT) { | |
| 1305 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1306 VDEV_AUX_CORRUPT_DATA); | |
| 1307 error = EIO; | |
| 1308 goto out; | |
| 1309 } | |
| 1310 | |
| 1311 if (error == 0) { | |
| 1312 (void) zap_lookup(spa->spa_meta_objset, | |
| 1313 spa->spa_pool_props_object, | |
| 4451 | 1314 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), |
| 3912 | 1315 sizeof (uint64_t), 1, &spa->spa_bootfs); |
| 4451 | 1316 (void) zap_lookup(spa->spa_meta_objset, |
| 1317 spa->spa_pool_props_object, | |
| 1318 zpool_prop_to_name(ZPOOL_PROP_AUTOREPLACE), | |
| 1319 sizeof (uint64_t), 1, &autoreplace); | |
| 4543 | 1320 (void) zap_lookup(spa->spa_meta_objset, |
| 1321 spa->spa_pool_props_object, | |
| 1322 zpool_prop_to_name(ZPOOL_PROP_DELEGATION), | |
| 1323 sizeof (uint64_t), 1, &spa->spa_delegation); | |
| 5329 | 1324 (void) zap_lookup(spa->spa_meta_objset, |
| 1325 spa->spa_pool_props_object, | |
| 1326 zpool_prop_to_name(ZPOOL_PROP_FAILUREMODE), | |
| 1327 sizeof (uint64_t), 1, &spa->spa_failmode); | |
| 3912 | 1328 } |
| 1329 | |
| 2082 | 1330 /* |
| 4451 | 1331 * If the 'autoreplace' property is set, then post a resource notifying |
| 1332 * the ZFS DE that it should not issue any faults for unopenable | |
| 1333 * devices. We also iterate over the vdevs, and post a sysevent for any | |
| 1334 * unopenable vdevs so that the normal autoreplace handler can take | |
| 1335 * over. | |
| 1336 */ | |
|
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1337 if (autoreplace && state != SPA_LOAD_TRYIMPORT) |
| 4451 | 1338 spa_check_removed(spa->spa_root_vdev); |
| 1339 | |
| 1340 /* | |
|
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1341 * Load the vdev state for all toplevel vdevs. |
| 789 | 1342 */ |
|
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1343 vdev_load(rvd); |
| 789 | 1344 |
| 1345 /* | |
| 1346 * Propagate the leaf DTLs we just loaded all the way up the tree. | |
| 1347 */ | |
| 1544 | 1348 spa_config_enter(spa, RW_WRITER, FTAG); |
| 789 | 1349 vdev_dtl_reassess(rvd, 0, 0, B_FALSE); |
| 1544 | 1350 spa_config_exit(spa, FTAG); |
| 789 | 1351 |
| 1352 /* | |
| 1353 * Check the state of the root vdev. If it can't be opened, it | |
| 1354 * indicates one or more toplevel vdevs are faulted. | |
| 1355 */ | |
| 1544 | 1356 if (rvd->vdev_state <= VDEV_STATE_CANT_OPEN) { |
| 1357 error = ENXIO; | |
| 1358 goto out; | |
| 1359 } | |
| 789 | 1360 |
| 1544 | 1361 if ((spa_mode & FWRITE) && state != SPA_LOAD_TRYIMPORT) { |
|
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1362 dmu_tx_t *tx; |
|
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1363 int need_update = B_FALSE; |
|
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1364 int c; |
|
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1365 |
|
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1366 /* |
|
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1367 * Claim log blocks that haven't been committed yet. |
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1368 * This must all happen in a single txg. |
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1369 */ |
|
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1370 tx = dmu_tx_create_assigned(spa_get_dsl(spa), |
| 789 | 1371 spa_first_txg(spa)); |
| 2417 | 1372 (void) dmu_objset_find(spa->spa_name, |
| 1373 zil_claim, tx, DS_FIND_CHILDREN); | |
| 789 | 1374 dmu_tx_commit(tx); |
| 1375 | |
| 1376 spa->spa_sync_on = B_TRUE; | |
| 1377 txg_sync_start(spa->spa_dsl_pool); | |
| 1378 | |
| 1379 /* | |
| 1380 * Wait for all claims to sync. | |
| 1381 */ | |
| 1382 txg_wait_synced(spa->spa_dsl_pool, 0); | |
|
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1383 |
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1384 /* |
|
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1385 * If the config cache is stale, or we have uninitialized |
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1386 * metaslabs (see spa_vdev_add()), then update the config. |
|
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1387 */ |
|
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1388 if (config_cache_txg != spa->spa_config_txg || |
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1389 state == SPA_LOAD_IMPORT) |
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1390 need_update = B_TRUE; |
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1391 |
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1392 for (c = 0; c < rvd->vdev_children; c++) |
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1393 if (rvd->vdev_child[c]->vdev_ms_array == 0) |
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1394 need_update = B_TRUE; |
|
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1395 |
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1396 /* |
|
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1397 * Update the config cache asychronously in case we're the |
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1398 * root pool, in which case the config cache isn't writable yet. |
|
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1399 */ |
|
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1400 if (need_update) |
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1401 spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE); |
| 789 | 1402 } |
| 1403 | |
| 1544 | 1404 error = 0; |
| 1405 out: | |
| 2082 | 1406 if (error && error != EBADF) |
| 1544 | 1407 zfs_ereport_post(FM_EREPORT_ZFS_POOL, spa, NULL, NULL, 0, 0); |
| 1408 spa->spa_load_state = SPA_LOAD_NONE; | |
| 1409 spa->spa_ena = 0; | |
| 1410 | |
| 1411 return (error); | |
| 789 | 1412 } |
| 1413 | |
| 1414 /* | |
| 1415 * Pool Open/Import | |
| 1416 * | |
| 1417 * The import case is identical to an open except that the configuration is sent | |
| 1418 * down from userland, instead of grabbed from the configuration cache. For the | |
| 1419 * case of an open, the pool configuration will exist in the | |
| 4451 | 1420 * POOL_STATE_UNINITIALIZED state. |
| 789 | 1421 * |
| 1422 * The stats information (gen/count/ustats) is used to gather vdev statistics at | |
| 1423 * the same time open the pool, without having to keep around the spa_t in some | |
| 1424 * ambiguous state. | |
| 1425 */ | |
| 1426 static int | |
| 1427 spa_open_common(const char *pool, spa_t **spapp, void *tag, nvlist_t **config) | |
| 1428 { | |
| 1429 spa_t *spa; | |
| 1430 int error; | |
| 1431 int loaded = B_FALSE; | |
| 1432 int locked = B_FALSE; | |
| 1433 | |
| 1434 *spapp = NULL; | |
| 1435 | |
| 1436 /* | |
| 1437 * As disgusting as this is, we need to support recursive calls to this | |
| 1438 * function because dsl_dir_open() is called during spa_load(), and ends | |
| 1439 * up calling spa_open() again. The real fix is to figure out how to | |
| 1440 * avoid dsl_dir_open() calling this in the first place. | |
| 1441 */ | |
| 1442 if (mutex_owner(&spa_namespace_lock) != curthread) { | |
| 1443 mutex_enter(&spa_namespace_lock); | |
| 1444 locked = B_TRUE; | |
| 1445 } | |
| 1446 | |
| 1447 if ((spa = spa_lookup(pool)) == NULL) { | |
| 1448 if (locked) | |
| 1449 mutex_exit(&spa_namespace_lock); | |
| 1450 return (ENOENT); | |
| 1451 } | |
| 1452 if (spa->spa_state == POOL_STATE_UNINITIALIZED) { | |
| 1453 | |
| 1454 spa_activate(spa); | |
| 1455 | |
|
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1456 error = spa_load(spa, spa->spa_config, SPA_LOAD_OPEN, B_FALSE); |
| 789 | 1457 |
| 1458 if (error == EBADF) { | |
| 1459 /* | |
|
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1460 * If vdev_validate() returns failure (indicated by |
|
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1461 * EBADF), it indicates that one of the vdevs indicates |
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1462 * that the pool has been exported or destroyed. If |
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1463 * this is the case, the config cache is out of sync and |
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1464 * we should remove the pool from the namespace. |
| 789 | 1465 */ |
| 2082 | 1466 zfs_post_ok(spa, NULL); |
| 789 | 1467 spa_unload(spa); |
| 1468 spa_deactivate(spa); | |
| 1469 spa_remove(spa); | |
| 1470 spa_config_sync(); | |
| 1471 if (locked) | |
| 1472 mutex_exit(&spa_namespace_lock); | |
| 1473 return (ENOENT); | |
| 1544 | 1474 } |
| 1475 | |
| 1476 if (error) { | |
| 789 | 1477 /* |
| 1478 * We can't open the pool, but we still have useful | |
| 1479 * information: the state of each vdev after the | |
| 1480 * attempted vdev_open(). Return this to the user. | |
| 1481 */ | |
|
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1482 if (config != NULL && spa->spa_root_vdev != NULL) { |
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1483 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 1484 *config = spa_config_generate(spa, NULL, -1ULL, |
| 1485 B_TRUE); | |
|
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1486 spa_config_exit(spa, FTAG); |
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1487 } |
| 789 | 1488 spa_unload(spa); |
| 1489 spa_deactivate(spa); | |
| 1544 | 1490 spa->spa_last_open_failed = B_TRUE; |
| 789 | 1491 if (locked) |
| 1492 mutex_exit(&spa_namespace_lock); | |
| 1493 *spapp = NULL; | |
| 1494 return (error); | |
| 1544 | 1495 } else { |
| 1496 zfs_post_ok(spa, NULL); | |
| 1497 spa->spa_last_open_failed = B_FALSE; | |
| 789 | 1498 } |
| 1499 | |
| 1500 loaded = B_TRUE; | |
| 1501 } | |
| 1502 | |
| 1503 spa_open_ref(spa, tag); | |
| 4451 | 1504 |
| 1505 /* | |
| 1506 * If we just loaded the pool, resilver anything that's out of date. | |
| 1507 */ | |
| 1508 if (loaded && (spa_mode & FWRITE)) | |
| 1509 VERIFY(spa_scrub(spa, POOL_SCRUB_RESILVER, B_TRUE) == 0); | |
| 1510 | |
| 789 | 1511 if (locked) |
| 1512 mutex_exit(&spa_namespace_lock); | |
| 1513 | |
| 1514 *spapp = spa; | |
| 1515 | |
| 1516 if (config != NULL) { | |
| 1544 | 1517 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 1518 *config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); |
| 1544 | 1519 spa_config_exit(spa, FTAG); |
| 789 | 1520 } |
| 1521 | |
| 1522 return (0); | |
| 1523 } | |
| 1524 | |
| 1525 int | |
| 1526 spa_open(const char *name, spa_t **spapp, void *tag) | |
| 1527 { | |
| 1528 return (spa_open_common(name, spapp, tag, NULL)); | |
| 1529 } | |
| 1530 | |
| 1544 | 1531 /* |
| 1532 * Lookup the given spa_t, incrementing the inject count in the process, | |
| 1533 * preventing it from being exported or destroyed. | |
| 1534 */ | |
| 1535 spa_t * | |
| 1536 spa_inject_addref(char *name) | |
| 1537 { | |
| 1538 spa_t *spa; | |
| 1539 | |
| 1540 mutex_enter(&spa_namespace_lock); | |
| 1541 if ((spa = spa_lookup(name)) == NULL) { | |
| 1542 mutex_exit(&spa_namespace_lock); | |
| 1543 return (NULL); | |
| 1544 } | |
| 1545 spa->spa_inject_ref++; | |
| 1546 mutex_exit(&spa_namespace_lock); | |
| 1547 | |
| 1548 return (spa); | |
| 1549 } | |
| 1550 | |
| 1551 void | |
| 1552 spa_inject_delref(spa_t *spa) | |
| 1553 { | |
| 1554 mutex_enter(&spa_namespace_lock); | |
| 1555 spa->spa_inject_ref--; | |
| 1556 mutex_exit(&spa_namespace_lock); | |
| 1557 } | |
| 1558 | |
| 5450 | 1559 /* |
| 1560 * Add spares device information to the nvlist. | |
| 1561 */ | |
| 2082 | 1562 static void |
| 1563 spa_add_spares(spa_t *spa, nvlist_t *config) | |
| 1564 { | |
| 1565 nvlist_t **spares; | |
| 1566 uint_t i, nspares; | |
| 1567 nvlist_t *nvroot; | |
| 1568 uint64_t guid; | |
| 1569 vdev_stat_t *vs; | |
| 1570 uint_t vsc; | |
|
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1571 uint64_t pool; |
| 2082 | 1572 |
| 5450 | 1573 if (spa->spa_spares.sav_count == 0) |
| 2082 | 1574 return; |
| 1575 | |
| 1576 VERIFY(nvlist_lookup_nvlist(config, | |
| 1577 ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); | |
| 5450 | 1578 VERIFY(nvlist_lookup_nvlist_array(spa->spa_spares.sav_config, |
| 2082 | 1579 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); |
| 1580 if (nspares != 0) { | |
| 1581 VERIFY(nvlist_add_nvlist_array(nvroot, | |
| 1582 ZPOOL_CONFIG_SPARES, spares, nspares) == 0); | |
| 1583 VERIFY(nvlist_lookup_nvlist_array(nvroot, | |
| 1584 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); | |
| 1585 | |
| 1586 /* | |
| 1587 * Go through and find any spares which have since been | |
| 1588 * repurposed as an active spare. If this is the case, update | |
| 1589 * their status appropriately. | |
| 1590 */ | |
| 1591 for (i = 0; i < nspares; i++) { | |
| 1592 VERIFY(nvlist_lookup_uint64(spares[i], | |
| 1593 ZPOOL_CONFIG_GUID, &guid) == 0); | |
|
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1594 if (spa_spare_exists(guid, &pool) && pool != 0ULL) { |
| 2082 | 1595 VERIFY(nvlist_lookup_uint64_array( |
| 1596 spares[i], ZPOOL_CONFIG_STATS, | |
| 1597 (uint64_t **)&vs, &vsc) == 0); | |
| 1598 vs->vs_state = VDEV_STATE_CANT_OPEN; | |
| 1599 vs->vs_aux = VDEV_AUX_SPARED; | |
| 1600 } | |
| 1601 } | |
| 1602 } | |
| 1603 } | |
| 1604 | |
| 5450 | 1605 /* |
| 1606 * Add l2cache device information to the nvlist, including vdev stats. | |
| 1607 */ | |
| 1608 static void | |
| 1609 spa_add_l2cache(spa_t *spa, nvlist_t *config) | |
| 1610 { | |
| 1611 nvlist_t **l2cache; | |
| 1612 uint_t i, j, nl2cache; | |
| 1613 nvlist_t *nvroot; | |
| 1614 uint64_t guid; | |
| 1615 vdev_t *vd; | |
| 1616 vdev_stat_t *vs; | |
| 1617 uint_t vsc; | |
| 1618 | |
| 1619 if (spa->spa_l2cache.sav_count == 0) | |
| 1620 return; | |
| 1621 | |
| 1622 spa_config_enter(spa, RW_READER, FTAG); | |
| 1623 | |
| 1624 VERIFY(nvlist_lookup_nvlist(config, | |
| 1625 ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); | |
| 1626 VERIFY(nvlist_lookup_nvlist_array(spa->spa_l2cache.sav_config, | |
| 1627 ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0); | |
| 1628 if (nl2cache != 0) { | |
| 1629 VERIFY(nvlist_add_nvlist_array(nvroot, | |
| 1630 ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache) == 0); | |
| 1631 VERIFY(nvlist_lookup_nvlist_array(nvroot, | |
| 1632 ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0); | |
| 1633 | |
| 1634 /* | |
| 1635 * Update level 2 cache device stats. | |
| 1636 */ | |
| 1637 | |
| 1638 for (i = 0; i < nl2cache; i++) { | |
| 1639 VERIFY(nvlist_lookup_uint64(l2cache[i], | |
| 1640 ZPOOL_CONFIG_GUID, &guid) == 0); | |
| 1641 | |
| 1642 vd = NULL; | |
| 1643 for (j = 0; j < spa->spa_l2cache.sav_count; j++) { | |
| 1644 if (guid == | |
| 1645 spa->spa_l2cache.sav_vdevs[j]->vdev_guid) { | |
| 1646 vd = spa->spa_l2cache.sav_vdevs[j]; | |
| 1647 break; | |
| 1648 } | |
| 1649 } | |
| 1650 ASSERT(vd != NULL); | |
| 1651 | |
| 1652 VERIFY(nvlist_lookup_uint64_array(l2cache[i], | |
| 1653 ZPOOL_CONFIG_STATS, (uint64_t **)&vs, &vsc) == 0); | |
| 1654 vdev_get_stats(vd, vs); | |
| 1655 } | |
| 1656 } | |
| 1657 | |
| 1658 spa_config_exit(spa, FTAG); | |
| 1659 } | |
| 1660 | |
| 789 | 1661 int |
| 1544 | 1662 spa_get_stats(const char *name, nvlist_t **config, char *altroot, size_t buflen) |
| 789 | 1663 { |
| 1664 int error; | |
| 1665 spa_t *spa; | |
| 1666 | |
| 1667 *config = NULL; | |
| 1668 error = spa_open_common(name, &spa, FTAG, config); | |
| 1669 | |
| 2082 | 1670 if (spa && *config != NULL) { |
| 1544 | 1671 VERIFY(nvlist_add_uint64(*config, ZPOOL_CONFIG_ERRCOUNT, |
| 1672 spa_get_errlog_size(spa)) == 0); | |
| 1673 | |
| 2082 | 1674 spa_add_spares(spa, *config); |
| 5450 | 1675 spa_add_l2cache(spa, *config); |
| 2082 | 1676 } |
| 1677 | |
| 1544 | 1678 /* |
| 1679 * We want to get the alternate root even for faulted pools, so we cheat | |
| 1680 * and call spa_lookup() directly. | |
| 1681 */ | |
| 1682 if (altroot) { | |
| 1683 if (spa == NULL) { | |
| 1684 mutex_enter(&spa_namespace_lock); | |
| 1685 spa = spa_lookup(name); | |
| 1686 if (spa) | |
| 1687 spa_altroot(spa, altroot, buflen); | |
| 1688 else | |
| 1689 altroot[0] = '\0'; | |
| 1690 spa = NULL; | |
| 1691 mutex_exit(&spa_namespace_lock); | |
| 1692 } else { | |
| 1693 spa_altroot(spa, altroot, buflen); | |
| 1694 } | |
| 1695 } | |
| 1696 | |
| 789 | 1697 if (spa != NULL) |
| 1698 spa_close(spa, FTAG); | |
| 1699 | |
| 1700 return (error); | |
| 1701 } | |
| 1702 | |
| 1703 /* | |
| 5450 | 1704 * Validate that the auxiliary device array is well formed. We must have an |
| 1705 * array of nvlists, each which describes a valid leaf vdev. If this is an | |
| 1706 * import (mode is VDEV_ALLOC_SPARE), then we allow corrupted spares to be | |
| 1707 * specified, as long as they are well-formed. | |
| 2082 | 1708 */ |
| 1709 static int | |
| 5450 | 1710 spa_validate_aux_devs(spa_t *spa, nvlist_t *nvroot, uint64_t crtxg, int mode, |
| 1711 spa_aux_vdev_t *sav, const char *config, uint64_t version, | |
| 1712 vdev_labeltype_t label) | |
| 2082 | 1713 { |
| 5450 | 1714 nvlist_t **dev; |
| 1715 uint_t i, ndev; | |
| 2082 | 1716 vdev_t *vd; |
| 1717 int error; | |
| 1718 | |
| 1719 /* | |
| 5450 | 1720 * It's acceptable to have no devs specified. |
| 2082 | 1721 */ |
| 5450 | 1722 if (nvlist_lookup_nvlist_array(nvroot, config, &dev, &ndev) != 0) |
| 2082 | 1723 return (0); |
| 1724 | |
| 5450 | 1725 if (ndev == 0) |
| 2082 | 1726 return (EINVAL); |
| 1727 | |
| 1728 /* | |
| 5450 | 1729 * Make sure the pool is formatted with a version that supports this |
| 1730 * device type. | |
| 2082 | 1731 */ |
| 5450 | 1732 if (spa_version(spa) < version) |
| 2082 | 1733 return (ENOTSUP); |
| 1734 | |
|
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1735 /* |
| 5450 | 1736 * Set the pending device list so we correctly handle device in-use |
|
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1737 * checking. |
|
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1738 */ |
| 5450 | 1739 sav->sav_pending = dev; |
| 1740 sav->sav_npending = ndev; | |
| 1741 | |
| 1742 for (i = 0; i < ndev; i++) { | |
| 1743 if ((error = spa_config_parse(spa, &vd, dev[i], NULL, 0, | |
| 2082 | 1744 mode)) != 0) |
|
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1745 goto out; |
| 2082 | 1746 |
| 1747 if (!vd->vdev_ops->vdev_op_leaf) { | |
| 1748 vdev_free(vd); | |
|
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1749 error = EINVAL; |
|
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1750 goto out; |
| 2082 | 1751 } |
| 1752 | |
| 5450 | 1753 /* |
| 1754 * The L2ARC currently only supports disk devices. | |
| 1755 */ | |
| 1756 if ((strcmp(config, ZPOOL_CONFIG_L2CACHE) == 0) && | |
| 1757 strcmp(vd->vdev_ops->vdev_op_type, VDEV_TYPE_DISK) != 0) { | |
| 1758 error = ENOTBLK; | |
| 1759 goto out; | |
| 1760 } | |
| 1761 | |
| 2082 | 1762 vd->vdev_top = vd; |
|
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1763 |
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1764 if ((error = vdev_open(vd)) == 0 && |
| 5450 | 1765 (error = vdev_label_init(vd, crtxg, label)) == 0) { |
| 1766 VERIFY(nvlist_add_uint64(dev[i], ZPOOL_CONFIG_GUID, | |
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1767 vd->vdev_guid) == 0); |
| 2082 | 1768 } |
| 1769 | |
| 1770 vdev_free(vd); | |
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1771 |
| 5450 | 1772 if (error && |
| 1773 (mode != VDEV_ALLOC_SPARE && mode != VDEV_ALLOC_L2CACHE)) | |
|
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1774 goto out; |
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1775 else |
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1776 error = 0; |
| 2082 | 1777 } |
| 1778 | |
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1779 out: |
| 5450 | 1780 sav->sav_pending = NULL; |
| 1781 sav->sav_npending = 0; | |
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1782 return (error); |
| 2082 | 1783 } |
| 1784 | |
| 5450 | 1785 static int |
| 1786 spa_validate_aux(spa_t *spa, nvlist_t *nvroot, uint64_t crtxg, int mode) | |
| 1787 { | |
| 1788 int error; | |
| 1789 | |
| 1790 if ((error = spa_validate_aux_devs(spa, nvroot, crtxg, mode, | |
| 1791 &spa->spa_spares, ZPOOL_CONFIG_SPARES, SPA_VERSION_SPARES, | |
| 1792 VDEV_LABEL_SPARE)) != 0) { | |
| 1793 return (error); | |
| 1794 } | |
| 1795 | |
| 1796 return (spa_validate_aux_devs(spa, nvroot, crtxg, mode, | |
| 1797 &spa->spa_l2cache, ZPOOL_CONFIG_L2CACHE, SPA_VERSION_L2CACHE, | |
| 1798 VDEV_LABEL_L2CACHE)); | |
| 1799 } | |
| 1800 | |
| 1801 static void | |
| 1802 spa_set_aux_vdevs(spa_aux_vdev_t *sav, nvlist_t **devs, int ndevs, | |
| 1803 const char *config) | |
| 1804 { | |
| 1805 int i; | |
| 1806 | |
| 1807 if (sav->sav_config != NULL) { | |
| 1808 nvlist_t **olddevs; | |
| 1809 uint_t oldndevs; | |
| 1810 nvlist_t **newdevs; | |
| 1811 | |
| 1812 /* | |
| 1813 * Generate new dev list by concatentating with the | |
| 1814 * current dev list. | |
| 1815 */ | |
| 1816 VERIFY(nvlist_lookup_nvlist_array(sav->sav_config, config, | |
| 1817 &olddevs, &oldndevs) == 0); | |
| 1818 | |
| 1819 newdevs = kmem_alloc(sizeof (void *) * | |
| 1820 (ndevs + oldndevs), KM_SLEEP); | |
| 1821 for (i = 0; i < oldndevs; i++) | |
| 1822 VERIFY(nvlist_dup(olddevs[i], &newdevs[i], | |
| 1823 KM_SLEEP) == 0); | |
| 1824 for (i = 0; i < ndevs; i++) | |
| 1825 VERIFY(nvlist_dup(devs[i], &newdevs[i + oldndevs], | |
| 1826 KM_SLEEP) == 0); | |
| 1827 | |
| 1828 VERIFY(nvlist_remove(sav->sav_config, config, | |
| 1829 DATA_TYPE_NVLIST_ARRAY) == 0); | |
| 1830 | |
| 1831 VERIFY(nvlist_add_nvlist_array(sav->sav_config, | |
| 1832 config, newdevs, ndevs + oldndevs) == 0); | |
| 1833 for (i = 0; i < oldndevs + ndevs; i++) | |
| 1834 nvlist_free(newdevs[i]); | |
| 1835 kmem_free(newdevs, (oldndevs + ndevs) * sizeof (void *)); | |
| 1836 } else { | |
| 1837 /* | |
| 1838 * Generate a new dev list. | |
| 1839 */ | |
| 1840 VERIFY(nvlist_alloc(&sav->sav_config, NV_UNIQUE_NAME, | |
| 1841 KM_SLEEP) == 0); | |
| 1842 VERIFY(nvlist_add_nvlist_array(sav->sav_config, config, | |
| 1843 devs, ndevs) == 0); | |
| 1844 } | |
| 1845 } | |
| 1846 | |
| 1847 /* | |
| 1848 * Stop and drop level 2 ARC devices | |
| 1849 */ | |
| 1850 void | |
| 1851 spa_l2cache_drop(spa_t *spa) | |
| 1852 { | |
| 1853 vdev_t *vd; | |
| 1854 int i; | |
| 1855 spa_aux_vdev_t *sav = &spa->spa_l2cache; | |
| 1856 | |
| 1857 for (i = 0; i < sav->sav_count; i++) { | |
| 1858 uint64_t pool; | |
| 1859 | |
| 1860 vd = sav->sav_vdevs[i]; | |
| 1861 ASSERT(vd != NULL); | |
| 1862 | |
| 1863 if (spa_mode & FWRITE && | |
| 1864 spa_l2cache_exists(vd->vdev_guid, &pool) && pool != 0ULL) { | |
| 1865 l2arc_remove_vdev(vd); | |
| 1866 } | |
| 1867 if (vd->vdev_isl2cache) | |
| 1868 spa_l2cache_remove(vd); | |
| 1869 vdev_clear_stats(vd); | |
| 1870 (void) vdev_close(vd); | |
| 1871 } | |
| 1872 } | |
| 1873 | |
| 2082 | 1874 /* |
| 789 | 1875 * Pool Creation |
| 1876 */ | |
| 1877 int | |
| 5094 | 1878 spa_create(const char *pool, nvlist_t *nvroot, nvlist_t *props, |
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1879 const char *history_str) |
| 789 | 1880 { |
| 1881 spa_t *spa; | |
| 5094 | 1882 char *altroot = NULL; |
|
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1883 vdev_t *rvd; |
| 789 | 1884 dsl_pool_t *dp; |
| 1885 dmu_tx_t *tx; | |
| 2082 | 1886 int c, error = 0; |
| 789 | 1887 uint64_t txg = TXG_INITIAL; |
| 5450 | 1888 nvlist_t **spares, **l2cache; |
| 1889 uint_t nspares, nl2cache; | |
| 5094 | 1890 uint64_t version; |
| 789 | 1891 |
| 1892 /* | |
| 1893 * If this pool already exists, return failure. | |
| 1894 */ | |
| 1895 mutex_enter(&spa_namespace_lock); | |
| 1896 if (spa_lookup(pool) != NULL) { | |
| 1897 mutex_exit(&spa_namespace_lock); | |
| 1898 return (EEXIST); | |
| 1899 } | |
| 1900 | |
| 1901 /* | |
| 1902 * Allocate a new spa_t structure. | |
| 1903 */ | |
| 5094 | 1904 (void) nvlist_lookup_string(props, |
| 1905 zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot); | |
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1906 spa = spa_add(pool, altroot); |
| 789 | 1907 spa_activate(spa); |
| 1908 | |
| 1909 spa->spa_uberblock.ub_txg = txg - 1; | |
| 5094 | 1910 |
| 1911 if (props && (error = spa_prop_validate(spa, props))) { | |
| 1912 spa_unload(spa); | |
| 1913 spa_deactivate(spa); | |
| 1914 spa_remove(spa); | |
| 1915 return (error); | |
| 1916 } | |
| 1917 | |
| 1918 if (nvlist_lookup_uint64(props, zpool_prop_to_name(ZPOOL_PROP_VERSION), | |
| 1919 &version) != 0) | |
| 1920 version = SPA_VERSION; | |
| 1921 ASSERT(version <= SPA_VERSION); | |
| 1922 spa->spa_uberblock.ub_version = version; | |
| 789 | 1923 spa->spa_ubsync = spa->spa_uberblock; |
| 1924 | |
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1925 /* |
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1926 * Create the root vdev. |
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1927 */ |
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1928 spa_config_enter(spa, RW_WRITER, FTAG); |
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1929 |
| 2082 | 1930 error = spa_config_parse(spa, &rvd, nvroot, NULL, 0, VDEV_ALLOC_ADD); |
| 1931 | |
| 1932 ASSERT(error != 0 || rvd != NULL); | |
| 1933 ASSERT(error != 0 || spa->spa_root_vdev == rvd); | |
| 1934 | |
| 5886 | 1935 if (error == 0 && rvd->vdev_children == 0) |
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1936 error = EINVAL; |
| 2082 | 1937 |
| 1938 if (error == 0 && | |
| 1939 (error = vdev_create(rvd, txg, B_FALSE)) == 0 && | |
| 5450 | 1940 (error = spa_validate_aux(spa, nvroot, txg, |
| 2082 | 1941 VDEV_ALLOC_ADD)) == 0) { |
| 1942 for (c = 0; c < rvd->vdev_children; c++) | |
| 1943 vdev_init(rvd->vdev_child[c], txg); | |
| 1944 vdev_config_dirty(rvd); | |
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1945 } |
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1946 |
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1947 spa_config_exit(spa, FTAG); |
| 789 | 1948 |
| 2082 | 1949 if (error != 0) { |
| 789 | 1950 spa_unload(spa); |
| 1951 spa_deactivate(spa); | |
| 1952 spa_remove(spa); | |
| 1953 mutex_exit(&spa_namespace_lock); | |
| 1954 return (error); | |
| 1955 } | |
| 1956 | |
| 2082 | 1957 /* |
| 1958 * Get the list of spares, if specified. | |
| 1959 */ | |
| 1960 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
| 1961 &spares, &nspares) == 0) { | |
| 5450 | 1962 VERIFY(nvlist_alloc(&spa->spa_spares.sav_config, NV_UNIQUE_NAME, |
| 2082 | 1963 KM_SLEEP) == 0); |
| 5450 | 1964 VERIFY(nvlist_add_nvlist_array(spa->spa_spares.sav_config, |
| 2082 | 1965 ZPOOL_CONFIG_SPARES, spares, nspares) == 0); |
| 1966 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 1967 spa_load_spares(spa); | |
| 1968 spa_config_exit(spa, FTAG); | |
| 5450 | 1969 spa->spa_spares.sav_sync = B_TRUE; |
| 1970 } | |
| 1971 | |
| 1972 /* | |
| 1973 * Get the list of level 2 cache devices, if specified. | |
| 1974 */ | |
| 1975 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, | |
| 1976 &l2cache, &nl2cache) == 0) { | |
| 1977 VERIFY(nvlist_alloc(&spa->spa_l2cache.sav_config, | |
| 1978 NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
| 1979 VERIFY(nvlist_add_nvlist_array(spa->spa_l2cache.sav_config, | |
| 1980 ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache) == 0); | |
| 1981 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 1982 spa_load_l2cache(spa); | |
| 1983 spa_config_exit(spa, FTAG); | |
| 1984 spa->spa_l2cache.sav_sync = B_TRUE; | |
| 2082 | 1985 } |
| 1986 | |
| 789 | 1987 spa->spa_dsl_pool = dp = dsl_pool_create(spa, txg); |
| 1988 spa->spa_meta_objset = dp->dp_meta_objset; | |
| 1989 | |
| 1990 tx = dmu_tx_create_assigned(dp, txg); | |
| 1991 | |
| 1992 /* | |
| 1993 * Create the pool config object. | |
| 1994 */ | |
| 1995 spa->spa_config_object = dmu_object_alloc(spa->spa_meta_objset, | |
| 1996 DMU_OT_PACKED_NVLIST, 1 << 14, | |
| 1997 DMU_OT_PACKED_NVLIST_SIZE, sizeof (uint64_t), tx); | |
| 1998 | |
| 1544 | 1999 if (zap_add(spa->spa_meta_objset, |
| 789 | 2000 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CONFIG, |
| 1544 | 2001 sizeof (uint64_t), 1, &spa->spa_config_object, tx) != 0) { |
| 2002 cmn_err(CE_PANIC, "failed to add pool config"); | |
| 2003 } | |
| 789 | 2004 |
| 5094 | 2005 /* Newly created pools with the right version are always deflated. */ |
| 2006 if (version >= SPA_VERSION_RAIDZ_DEFLATE) { | |
| 2007 spa->spa_deflate = TRUE; | |
| 2008 if (zap_add(spa->spa_meta_objset, | |
| 2009 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
| 2010 sizeof (uint64_t), 1, &spa->spa_deflate, tx) != 0) { | |
| 2011 cmn_err(CE_PANIC, "failed to add deflate"); | |
| 2012 } | |
| 2082 | 2013 } |
| 2014 | |
| 789 | 2015 /* |
| 2016 * Create the deferred-free bplist object. Turn off compression | |
| 2017 * because sync-to-convergence takes longer if the blocksize | |
| 2018 * keeps changing. | |
| 2019 */ | |
| 2020 spa->spa_sync_bplist_obj = bplist_create(spa->spa_meta_objset, | |
| 2021 1 << 14, tx); | |
| 2022 dmu_object_set_compress(spa->spa_meta_objset, spa->spa_sync_bplist_obj, | |
| 2023 ZIO_COMPRESS_OFF, tx); | |
| 2024 | |
| 1544 | 2025 if (zap_add(spa->spa_meta_objset, |
| 789 | 2026 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SYNC_BPLIST, |
| 1544 | 2027 sizeof (uint64_t), 1, &spa->spa_sync_bplist_obj, tx) != 0) { |
| 2028 cmn_err(CE_PANIC, "failed to add bplist"); | |
| 2029 } | |
| 789 | 2030 |
| 2926 | 2031 /* |
| 2032 * Create the pool's history object. | |
| 2033 */ | |
| 5094 | 2034 if (version >= SPA_VERSION_ZPOOL_HISTORY) |
| 2035 spa_history_create_obj(spa, tx); | |
| 2036 | |
| 2037 /* | |
| 2038 * Set pool properties. | |
| 2039 */ | |
| 2040 spa->spa_bootfs = zpool_prop_default_numeric(ZPOOL_PROP_BOOTFS); | |
| 2041 spa->spa_delegation = zpool_prop_default_numeric(ZPOOL_PROP_DELEGATION); | |
| 5329 | 2042 spa->spa_failmode = zpool_prop_default_numeric(ZPOOL_PROP_FAILUREMODE); |
| 5094 | 2043 if (props) |
| 2044 spa_sync_props(spa, props, CRED(), tx); | |
| 2926 | 2045 |
| 789 | 2046 dmu_tx_commit(tx); |
| 2047 | |
| 2048 spa->spa_sync_on = B_TRUE; | |
| 2049 txg_sync_start(spa->spa_dsl_pool); | |
| 2050 | |
| 2051 /* | |
| 2052 * We explicitly wait for the first transaction to complete so that our | |
| 2053 * bean counters are appropriately updated. | |
| 2054 */ | |
| 2055 txg_wait_synced(spa->spa_dsl_pool, txg); | |
| 2056 | |
| 2057 spa_config_sync(); | |
| 2058 | |
| 5094 | 2059 if (version >= SPA_VERSION_ZPOOL_HISTORY && history_str != NULL) |
|
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2060 (void) spa_history_log(spa, history_str, LOG_CMD_POOL_CREATE); |
|
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2061 |
| 789 | 2062 mutex_exit(&spa_namespace_lock); |
| 2063 | |
| 2064 return (0); | |
| 2065 } | |
| 2066 | |
| 2067 /* | |
| 2068 * Import the given pool into the system. We set up the necessary spa_t and | |
| 2069 * then call spa_load() to do the dirty work. | |
| 2070 */ | |
| 2071 int | |
| 5094 | 2072 spa_import(const char *pool, nvlist_t *config, nvlist_t *props) |
| 789 | 2073 { |
| 2074 spa_t *spa; | |
| 5094 | 2075 char *altroot = NULL; |
| 789 | 2076 int error; |
| 2082 | 2077 nvlist_t *nvroot; |
| 5450 | 2078 nvlist_t **spares, **l2cache; |
| 2079 uint_t nspares, nl2cache; | |
| 789 | 2080 |
| 2081 /* | |
| 2082 * If a pool with this name exists, return failure. | |
| 2083 */ | |
| 2084 mutex_enter(&spa_namespace_lock); | |
| 2085 if (spa_lookup(pool) != NULL) { | |
| 2086 mutex_exit(&spa_namespace_lock); | |
| 2087 return (EEXIST); | |
| 2088 } | |
| 2089 | |
| 2090 /* | |
|
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2091 * Create and initialize the spa structure. |
| 789 | 2092 */ |
| 5094 | 2093 (void) nvlist_lookup_string(props, |
| 2094 zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot); | |
|
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2095 spa = spa_add(pool, altroot); |
| 789 | 2096 spa_activate(spa); |
| 2097 | |
| 2098 /* | |
|
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2099 * Pass off the heavy lifting to spa_load(). |
| 1732 | 2100 * Pass TRUE for mosconfig because the user-supplied config |
| 2101 * is actually the one to trust when doing an import. | |
|
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2102 */ |
| 1732 | 2103 error = spa_load(spa, config, SPA_LOAD_IMPORT, B_TRUE); |
| 789 | 2104 |
| 2082 | 2105 spa_config_enter(spa, RW_WRITER, FTAG); |
| 2106 /* | |
| 2107 * Toss any existing sparelist, as it doesn't have any validity anymore, | |
| 2108 * and conflicts with spa_has_spare(). | |
| 2109 */ | |
| 5450 | 2110 if (spa->spa_spares.sav_config) { |
| 2111 nvlist_free(spa->spa_spares.sav_config); | |
| 2112 spa->spa_spares.sav_config = NULL; | |
| 2082 | 2113 spa_load_spares(spa); |
| 2114 } | |
| 5450 | 2115 if (spa->spa_l2cache.sav_config) { |
| 2116 nvlist_free(spa->spa_l2cache.sav_config); | |
| 2117 spa->spa_l2cache.sav_config = NULL; | |
| 2118 spa_load_l2cache(spa); | |
| 2119 } | |
| 2082 | 2120 |
| 2121 VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, | |
| 2122 &nvroot) == 0); | |
| 5450 | 2123 if (error == 0) |
| 2124 error = spa_validate_aux(spa, nvroot, -1ULL, VDEV_ALLOC_SPARE); | |
| 2125 if (error == 0) | |
| 2126 error = spa_validate_aux(spa, nvroot, -1ULL, | |
| 2127 VDEV_ALLOC_L2CACHE); | |
| 2082 | 2128 spa_config_exit(spa, FTAG); |
| 2129 | |
| 5094 | 2130 if (error != 0 || (props && (error = spa_prop_set(spa, props)))) { |
| 789 | 2131 spa_unload(spa); |
| 2132 spa_deactivate(spa); | |
| 2133 spa_remove(spa); | |
| 2134 mutex_exit(&spa_namespace_lock); | |
| 2135 return (error); | |
| 2136 } | |
| 2137 | |
|
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2138 /* |
| 5450 | 2139 * Override any spares and level 2 cache devices as specified by |
| 2140 * the user, as these may have correct device names/devids, etc. | |
| 2082 | 2141 */ |
| 2142 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
| 2143 &spares, &nspares) == 0) { | |
| 5450 | 2144 if (spa->spa_spares.sav_config) |
| 2145 VERIFY(nvlist_remove(spa->spa_spares.sav_config, | |
| 2082 | 2146 ZPOOL_CONFIG_SPARES, DATA_TYPE_NVLIST_ARRAY) == 0); |
| 2147 else | |
| 5450 | 2148 VERIFY(nvlist_alloc(&spa->spa_spares.sav_config, |
| 2082 | 2149 NV_UNIQUE_NAME, KM_SLEEP) == 0); |
| 5450 | 2150 VERIFY(nvlist_add_nvlist_array(spa->spa_spares.sav_config, |
| 2082 | 2151 ZPOOL_CONFIG_SPARES, spares, nspares) == 0); |
| 2152 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 2153 spa_load_spares(spa); | |
| 2154 spa_config_exit(spa, FTAG); | |
| 5450 | 2155 spa->spa_spares.sav_sync = B_TRUE; |
| 2156 } | |
| 2157 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, | |
| 2158 &l2cache, &nl2cache) == 0) { | |
| 2159 if (spa->spa_l2cache.sav_config) | |
| 2160 VERIFY(nvlist_remove(spa->spa_l2cache.sav_config, | |
| 2161 ZPOOL_CONFIG_L2CACHE, DATA_TYPE_NVLIST_ARRAY) == 0); | |
| 2162 else | |
| 2163 VERIFY(nvlist_alloc(&spa->spa_l2cache.sav_config, | |
| 2164 NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
| 2165 VERIFY(nvlist_add_nvlist_array(spa->spa_l2cache.sav_config, | |
| 2166 ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache) == 0); | |
| 2167 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 2168 spa_load_l2cache(spa); | |
| 2169 spa_config_exit(spa, FTAG); | |
| 2170 spa->spa_l2cache.sav_sync = B_TRUE; | |
| 2082 | 2171 } |
| 2172 | |
| 2173 /* | |
|
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2174 * Update the config cache to include the newly-imported pool. |
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2175 */ |
|
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2176 if (spa_mode & FWRITE) |
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2177 spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); |
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2178 |
| 789 | 2179 /* |
| 2180 * Resilver anything that's out of date. | |
| 2181 */ | |
| 2182 if (spa_mode & FWRITE) | |
| 2183 VERIFY(spa_scrub(spa, POOL_SCRUB_RESILVER, B_TRUE) == 0); | |
| 2184 | |
| 4451 | 2185 mutex_exit(&spa_namespace_lock); |
| 2186 | |
| 789 | 2187 return (0); |
| 2188 } | |
| 2189 | |
| 2190 /* | |
| 2191 * This (illegal) pool name is used when temporarily importing a spa_t in order | |
| 2192 * to get the vdev stats associated with the imported devices. | |
| 2193 */ | |
| 2194 #define TRYIMPORT_NAME "$import" | |
| 2195 | |
| 2196 nvlist_t * | |
| 2197 spa_tryimport(nvlist_t *tryconfig) | |
| 2198 { | |
| 2199 nvlist_t *config = NULL; | |
| 2200 char *poolname; | |
| 2201 spa_t *spa; | |
| 2202 uint64_t state; | |
| 2203 | |
| 2204 if (nvlist_lookup_string(tryconfig, ZPOOL_CONFIG_POOL_NAME, &poolname)) | |
| 2205 return (NULL); | |
| 2206 | |
| 2207 if (nvlist_lookup_uint64(tryconfig, ZPOOL_CONFIG_POOL_STATE, &state)) | |
| 2208 return (NULL); | |
| 2209 | |
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2210 /* |
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2211 * Create and initialize the spa structure. |
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2212 */ |
| 789 | 2213 mutex_enter(&spa_namespace_lock); |
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2214 spa = spa_add(TRYIMPORT_NAME, NULL); |
| 789 | 2215 spa_activate(spa); |
| 2216 | |
| 2217 /* | |
|
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2218 * Pass off the heavy lifting to spa_load(). |
| 1732 | 2219 * Pass TRUE for mosconfig because the user-supplied config |
| 2220 * is actually the one to trust when doing an import. | |
| 789 | 2221 */ |
| 1732 | 2222 (void) spa_load(spa, tryconfig, SPA_LOAD_TRYIMPORT, B_TRUE); |
| 789 | 2223 |
| 2224 /* | |
| 2225 * If 'tryconfig' was at least parsable, return the current config. | |
| 2226 */ | |
| 2227 if (spa->spa_root_vdev != NULL) { | |
|
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2228 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 2229 config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); |
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2230 spa_config_exit(spa, FTAG); |
| 789 | 2231 VERIFY(nvlist_add_string(config, ZPOOL_CONFIG_POOL_NAME, |
| 2232 poolname) == 0); | |
| 2233 VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_POOL_STATE, | |
| 2234 state) == 0); | |
|
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2235 VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_TIMESTAMP, |
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2236 spa->spa_uberblock.ub_timestamp) == 0); |
| 2082 | 2237 |
| 2238 /* | |
| 5450 | 2239 * Add the list of hot spares and level 2 cache devices. |
| 2082 | 2240 */ |
| 2241 spa_add_spares(spa, config); | |
| 5450 | 2242 spa_add_l2cache(spa, config); |
| 789 | 2243 } |
| 2244 | |
| 2245 spa_unload(spa); | |
| 2246 spa_deactivate(spa); | |
| 2247 spa_remove(spa); | |
| 2248 mutex_exit(&spa_namespace_lock); | |
| 2249 | |
| 2250 return (config); | |
| 2251 } | |
| 2252 | |
| 2253 /* | |
| 2254 * Pool export/destroy | |
| 2255 * | |
| 2256 * The act of destroying or exporting a pool is very simple. We make sure there | |
| 2257 * is no more pending I/O and any references to the pool are gone. Then, we | |
| 2258 * update the pool state and sync all the labels to disk, removing the | |
| 2259 * configuration from the cache afterwards. | |
| 2260 */ | |
| 2261 static int | |
|
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2262 spa_export_common(char *pool, int new_state, nvlist_t **oldconfig) |
| 789 | 2263 { |
| 2264 spa_t *spa; | |
| 2265 | |
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2266 if (oldconfig) |
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2267 *oldconfig = NULL; |
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2268 |
| 789 | 2269 if (!(spa_mode & FWRITE)) |
| 2270 return (EROFS); | |
| 2271 | |
| 2272 mutex_enter(&spa_namespace_lock); | |
| 2273 if ((spa = spa_lookup(pool)) == NULL) { | |
| 2274 mutex_exit(&spa_namespace_lock); | |
| 2275 return (ENOENT); | |
| 2276 } | |
| 2277 | |
| 2278 /* | |
| 1544 | 2279 * Put a hold on the pool, drop the namespace lock, stop async tasks, |
| 2280 * reacquire the namespace lock, and see if we can export. | |
| 2281 */ | |
| 2282 spa_open_ref(spa, FTAG); | |
| 2283 mutex_exit(&spa_namespace_lock); | |
| 2284 spa_async_suspend(spa); | |
| 2285 mutex_enter(&spa_namespace_lock); | |
| 2286 spa_close(spa, FTAG); | |
| 2287 | |
| 2288 /* | |
| 789 | 2289 * The pool will be in core if it's openable, |
| 2290 * in which case we can modify its state. | |
| 2291 */ | |
| 2292 if (spa->spa_state != POOL_STATE_UNINITIALIZED && spa->spa_sync_on) { | |
| 2293 /* | |
| 2294 * Objsets may be open only because they're dirty, so we | |
| 2295 * have to force it to sync before checking spa_refcnt. | |
| 2296 */ | |
| 2297 spa_scrub_suspend(spa); | |
| 2298 txg_wait_synced(spa->spa_dsl_pool, 0); | |
| 2299 | |
| 1544 | 2300 /* |
| 2301 * A pool cannot be exported or destroyed if there are active | |
| 2302 * references. If we are resetting a pool, allow references by | |
| 2303 * fault injection handlers. | |
| 2304 */ | |
| 2305 if (!spa_refcount_zero(spa) || | |
| 2306 (spa->spa_inject_ref != 0 && | |
| 2307 new_state != POOL_STATE_UNINITIALIZED)) { | |
| 789 | 2308 spa_scrub_resume(spa); |
| 1544 | 2309 spa_async_resume(spa); |
| 789 | 2310 mutex_exit(&spa_namespace_lock); |
| 2311 return (EBUSY); | |
| 2312 } | |
| 2313 | |
| 2314 spa_scrub_resume(spa); | |
| 2315 VERIFY(spa_scrub(spa, POOL_SCRUB_NONE, B_TRUE) == 0); | |
| 2316 | |
| 2317 /* | |
| 2318 * We want this to be reflected on every label, | |
| 2319 * so mark them all dirty. spa_unload() will do the | |
| 2320 * final sync that pushes these changes out. | |
| 2321 */ | |
| 1544 | 2322 if (new_state != POOL_STATE_UNINITIALIZED) { |
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2323 spa_config_enter(spa, RW_WRITER, FTAG); |
| 1544 | 2324 spa->spa_state = new_state; |
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2325 spa->spa_final_txg = spa_last_synced_txg(spa) + 1; |
| 1544 | 2326 vdev_config_dirty(spa->spa_root_vdev); |
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2327 spa_config_exit(spa, FTAG); |
| 1544 | 2328 } |
| 789 | 2329 } |
| 2330 | |
| 4451 | 2331 spa_event_notify(spa, NULL, ESC_ZFS_POOL_DESTROY); |
| 2332 | |
| 789 | 2333 if (spa->spa_state != POOL_STATE_UNINITIALIZED) { |
| 2334 spa_unload(spa); | |
| 2335 spa_deactivate(spa); | |
| 2336 } | |
| 2337 | |
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2338 if (oldconfig && spa->spa_config) |
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2339 VERIFY(nvlist_dup(spa->spa_config, oldconfig, 0) == 0); |
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2340 |
| 1544 | 2341 if (new_state != POOL_STATE_UNINITIALIZED) { |
| 5363 | 2342 spa_config_check(spa->spa_config_dir, |
| 2343 spa->spa_config_file); | |
| 1544 | 2344 spa_remove(spa); |
| 2345 spa_config_sync(); | |
| 2346 } | |
| 789 | 2347 mutex_exit(&spa_namespace_lock); |
| 2348 | |
| 2349 return (0); | |
| 2350 } | |
| 2351 | |
| 2352 /* | |
| 2353 * Destroy a storage pool. | |
| 2354 */ | |
| 2355 int | |
| 2356 spa_destroy(char *pool) | |
| 2357 { | |
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2358 return (spa_export_common(pool, POOL_STATE_DESTROYED, NULL)); |
| 789 | 2359 } |
| 2360 | |
| 2361 /* | |
| 2362 * Export a storage pool. | |
| 2363 */ | |
| 2364 int | |
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2365 spa_export(char *pool, nvlist_t **oldconfig) |
| 789 | 2366 { |
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2367 return (spa_export_common(pool, POOL_STATE_EXPORTED, oldconfig)); |
| 789 | 2368 } |
| 2369 | |
| 2370 /* | |
| 1544 | 2371 * Similar to spa_export(), this unloads the spa_t without actually removing it |
| 2372 * from the namespace in any way. | |
| 2373 */ | |
| 2374 int | |
| 2375 spa_reset(char *pool) | |
| 2376 { | |
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2377 return (spa_export_common(pool, POOL_STATE_UNINITIALIZED, NULL)); |
| 1544 | 2378 } |
| 2379 | |
| 2380 | |
| 2381 /* | |
| 789 | 2382 * ========================================================================== |
| 2383 * Device manipulation | |
| 2384 * ========================================================================== | |
| 2385 */ | |
| 2386 | |
| 2387 /* | |
| 4527 | 2388 * Add a device to a storage pool. |
| 789 | 2389 */ |
| 2390 int | |
| 2391 spa_vdev_add(spa_t *spa, nvlist_t *nvroot) | |
| 2392 { | |
| 2393 uint64_t txg; | |
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2394 int c, error; |
| 789 | 2395 vdev_t *rvd = spa->spa_root_vdev; |
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2396 vdev_t *vd, *tvd; |
| 5450 | 2397 nvlist_t **spares, **l2cache; |
| 2398 uint_t nspares, nl2cache; | |
| 789 | 2399 |
| 2400 txg = spa_vdev_enter(spa); | |
| 2401 | |
| 2082 | 2402 if ((error = spa_config_parse(spa, &vd, nvroot, NULL, 0, |
| 2403 VDEV_ALLOC_ADD)) != 0) | |
| 2404 return (spa_vdev_exit(spa, NULL, txg, error)); | |
| 2405 | |
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2406 spa->spa_pending_vdev = vd; |
| 789 | 2407 |
| 5450 | 2408 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, &spares, |
| 2409 &nspares) != 0) | |
| 2082 | 2410 nspares = 0; |
| 2411 | |
| 5450 | 2412 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, &l2cache, |
| 2413 &nl2cache) != 0) | |
| 2414 nl2cache = 0; | |
| 2415 | |
| 2416 if (vd->vdev_children == 0 && nspares == 0 && nl2cache == 0) { | |
|
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2417 spa->spa_pending_vdev = NULL; |
| 2082 | 2418 return (spa_vdev_exit(spa, vd, txg, EINVAL)); |
|
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2419 } |
| 2082 | 2420 |
| 2421 if (vd->vdev_children != 0) { | |
|
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2422 if ((error = vdev_create(vd, txg, B_FALSE)) != 0) { |
|
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2423 spa->spa_pending_vdev = NULL; |
| 2082 | 2424 return (spa_vdev_exit(spa, vd, txg, error)); |
| 2425 } | |
| 2426 } | |
| 2427 | |
|
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2428 /* |
| 5450 | 2429 * We must validate the spares and l2cache devices after checking the |
| 2430 * children. Otherwise, vdev_inuse() will blindly overwrite the spare. | |
|
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2431 */ |
| 5450 | 2432 if ((error = spa_validate_aux(spa, nvroot, txg, VDEV_ALLOC_ADD)) != 0) { |
|
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2433 spa->spa_pending_vdev = NULL; |
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2434 return (spa_vdev_exit(spa, vd, txg, error)); |
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|
2435 } |
|
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|
2436 |
|
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2437 spa->spa_pending_vdev = NULL; |
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2438 |
|
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2439 /* |
|
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2440 * Transfer each new top-level vdev from vd to rvd. |
|
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2441 */ |
|
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2442 for (c = 0; c < vd->vdev_children; c++) { |
|
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2443 tvd = vd->vdev_child[c]; |
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2444 vdev_remove_child(vd, tvd); |
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2445 tvd->vdev_id = rvd->vdev_children; |
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2446 vdev_add_child(rvd, tvd); |
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2447 vdev_config_dirty(tvd); |
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2448 } |
|
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|
2449 |
| 2082 | 2450 if (nspares != 0) { |
| 5450 | 2451 spa_set_aux_vdevs(&spa->spa_spares, spares, nspares, |
| 2452 ZPOOL_CONFIG_SPARES); | |
| 2082 | 2453 spa_load_spares(spa); |
| 5450 | 2454 spa->spa_spares.sav_sync = B_TRUE; |
| 2455 } | |
| 2456 | |
| 2457 if (nl2cache != 0) { | |
| 2458 spa_set_aux_vdevs(&spa->spa_l2cache, l2cache, nl2cache, | |
| 2459 ZPOOL_CONFIG_L2CACHE); | |
| 2460 spa_load_l2cache(spa); | |
| 2461 spa->spa_l2cache.sav_sync = B_TRUE; | |
| 789 | 2462 } |
| 2463 | |
| 2464 /* | |
|
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|
2465 * We have to be careful when adding new vdevs to an existing pool. |
|
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|
2466 * If other threads start allocating from these vdevs before we |
|
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|
2467 * sync the config cache, and we lose power, then upon reboot we may |
|
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|
2468 * fail to open the pool because there are DVAs that the config cache |
|
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|
2469 * can't translate. Therefore, we first add the vdevs without |
|
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|
2470 * initializing metaslabs; sync the config cache (via spa_vdev_exit()); |
|
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2471 * and then let spa_config_update() initialize the new metaslabs. |
|
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|
2472 * |
|
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|
2473 * spa_load() checks for added-but-not-initialized vdevs, so that |
|
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|
2474 * if we lose power at any point in this sequence, the remaining |
|
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|
2475 * steps will be completed the next time we load the pool. |
| 789 | 2476 */ |
|
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2477 (void) spa_vdev_exit(spa, vd, txg, 0); |
|
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|
2478 |
|
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2479 mutex_enter(&spa_namespace_lock); |
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2480 spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); |
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2481 mutex_exit(&spa_namespace_lock); |
| 789 | 2482 |
|
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2483 return (0); |
| 789 | 2484 } |
| 2485 | |
| 2486 /* | |
| 2487 * Attach a device to a mirror. The arguments are the path to any device | |
| 2488 * in the mirror, and the nvroot for the new device. If the path specifies | |
| 2489 * a device that is not mirrored, we automatically insert the mirror vdev. | |
| 2490 * | |
| 2491 * If 'replacing' is specified, the new device is intended to replace the | |
| 2492 * existing device; in this case the two devices are made into their own | |
| 4451 | 2493 * mirror using the 'replacing' vdev, which is functionally identical to |
| 789 | 2494 * the mirror vdev (it actually reuses all the same ops) but has a few |
| 2495 * extra rules: you can't attach to it after it's been created, and upon | |
| 2496 * completion of resilvering, the first disk (the one being replaced) | |
| 2497 * is automatically detached. | |
| 2498 */ | |
| 2499 int | |
| 1544 | 2500 spa_vdev_attach(spa_t *spa, uint64_t guid, nvlist_t *nvroot, int replacing) |
| 789 | 2501 { |
| 2502 uint64_t txg, open_txg; | |
| 2503 int error; | |
| 2504 vdev_t *rvd = spa->spa_root_vdev; | |
| 2505 vdev_t *oldvd, *newvd, *newrootvd, *pvd, *tvd; | |
| 2082 | 2506 vdev_ops_t *pvops; |
| 4527 | 2507 int is_log; |
| 789 | 2508 |
| 2509 txg = spa_vdev_enter(spa); | |
| 2510 | |
| 1544 | 2511 oldvd = vdev_lookup_by_guid(rvd, guid); |
| 789 | 2512 |
| 2513 if (oldvd == NULL) | |
| 2514 return (spa_vdev_exit(spa, NULL, txg, ENODEV)); | |
| 2515 | |
|
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2516 if (!oldvd->vdev_ops->vdev_op_leaf) |
|
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|
2517 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
|
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|
2518 |
| 789 | 2519 pvd = oldvd->vdev_parent; |
| 2520 | |
| 2082 | 2521 if ((error = spa_config_parse(spa, &newrootvd, nvroot, NULL, 0, |
| 4451 | 2522 VDEV_ALLOC_ADD)) != 0) |
| 2523 return (spa_vdev_exit(spa, NULL, txg, EINVAL)); | |
| 2524 | |
| 2525 if (newrootvd->vdev_children != 1) | |
| 789 | 2526 return (spa_vdev_exit(spa, newrootvd, txg, EINVAL)); |
| 2527 | |
| 2528 newvd = newrootvd->vdev_child[0]; | |
| 2529 | |
| 2530 if (!newvd->vdev_ops->vdev_op_leaf) | |
| 2531 return (spa_vdev_exit(spa, newrootvd, txg, EINVAL)); | |
| 2532 | |
| 2082 | 2533 if ((error = vdev_create(newrootvd, txg, replacing)) != 0) |
| 789 | 2534 return (spa_vdev_exit(spa, newrootvd, txg, error)); |
| 2535 | |
| 4527 | 2536 /* |
| 2537 * Spares can't replace logs | |
| 2538 */ | |
| 2539 is_log = oldvd->vdev_islog; | |
| 2540 if (is_log && newvd->vdev_isspare) | |
| 2541 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
| 2542 | |
| 2082 | 2543 if (!replacing) { |
| 2544 /* | |
| 2545 * For attach, the only allowable parent is a mirror or the root | |
| 2546 * vdev. | |
| 2547 */ | |
| 2548 if (pvd->vdev_ops != &vdev_mirror_ops && | |
| 2549 pvd->vdev_ops != &vdev_root_ops) | |
| 2550 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
| 2551 | |
| 2552 pvops = &vdev_mirror_ops; | |
| 2553 } else { | |
| 2554 /* | |
| 2555 * Active hot spares can only be replaced by inactive hot | |
| 2556 * spares. | |
| 2557 */ | |
| 2558 if (pvd->vdev_ops == &vdev_spare_ops && | |
| 2559 pvd->vdev_child[1] == oldvd && | |
| 2560 !spa_has_spare(spa, newvd->vdev_guid)) | |
| 2561 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
| 2562 | |
| 2563 /* | |
| 2564 * If the source is a hot spare, and the parent isn't already a | |
| 2565 * spare, then we want to create a new hot spare. Otherwise, we | |
|
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2566 * want to create a replacing vdev. The user is not allowed to |
|
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2567 * attach to a spared vdev child unless the 'isspare' state is |
|
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2568 * the same (spare replaces spare, non-spare replaces |
|
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|
2569 * non-spare). |
| 2082 | 2570 */ |
| 2571 if (pvd->vdev_ops == &vdev_replacing_ops) | |
| 2572 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
|
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2573 else if (pvd->vdev_ops == &vdev_spare_ops && |
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2574 newvd->vdev_isspare != oldvd->vdev_isspare) |
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2575 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
| 2082 | 2576 else if (pvd->vdev_ops != &vdev_spare_ops && |
| 2577 newvd->vdev_isspare) | |
| 2578 pvops = &vdev_spare_ops; | |
| 2579 else | |
| 2580 pvops = &vdev_replacing_ops; | |
| 2581 } | |
| 2582 | |
|
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2583 /* |
|
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2584 * Compare the new device size with the replaceable/attachable |
|
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2585 * device size. |
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2586 */ |
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2587 if (newvd->vdev_psize < vdev_get_rsize(oldvd)) |
| 789 | 2588 return (spa_vdev_exit(spa, newrootvd, txg, EOVERFLOW)); |
| 2589 | |
| 1732 | 2590 /* |
| 2591 * The new device cannot have a higher alignment requirement | |
| 2592 * than the top-level vdev. | |
| 2593 */ | |
| 2594 if (newvd->vdev_ashift > oldvd->vdev_top->vdev_ashift) | |
| 789 | 2595 return (spa_vdev_exit(spa, newrootvd, txg, EDOM)); |
| 2596 | |
| 2597 /* | |
| 2598 * If this is an in-place replacement, update oldvd's path and devid | |
| 2599 * to make it distinguishable from newvd, and unopenable from now on. | |
| 2600 */ | |
| 2601 if (strcmp(oldvd->vdev_path, newvd->vdev_path) == 0) { | |
| 2602 spa_strfree(oldvd->vdev_path); | |
| 2603 oldvd->vdev_path = kmem_alloc(strlen(newvd->vdev_path) + 5, | |
| 2604 KM_SLEEP); | |
| 2605 (void) sprintf(oldvd->vdev_path, "%s/%s", | |
| 2606 newvd->vdev_path, "old"); | |
| 2607 if (oldvd->vdev_devid != NULL) { | |
| 2608 spa_strfree(oldvd->vdev_devid); | |
| 2609 oldvd->vdev_devid = NULL; | |
| 2610 } | |
| 2611 } | |
| 2612 | |
| 2613 /* | |
| 2082 | 2614 * If the parent is not a mirror, or if we're replacing, insert the new |
| 2615 * mirror/replacing/spare vdev above oldvd. | |
| 789 | 2616 */ |
| 2617 if (pvd->vdev_ops != pvops) | |
| 2618 pvd = vdev_add_parent(oldvd, pvops); | |
| 2619 | |
| 2620 ASSERT(pvd->vdev_top->vdev_parent == rvd); | |
| 2621 ASSERT(pvd->vdev_ops == pvops); | |
| 2622 ASSERT(oldvd->vdev_parent == pvd); | |
| 2623 | |
| 2624 /* | |
| 2625 * Extract the new device from its root and add it to pvd. | |
| 2626 */ | |
| 2627 vdev_remove_child(newrootvd, newvd); | |
| 2628 newvd->vdev_id = pvd->vdev_children; | |
| 2629 vdev_add_child(pvd, newvd); | |
| 2630 | |
| 1544 | 2631 /* |
| 2632 * If newvd is smaller than oldvd, but larger than its rsize, | |
| 2633 * the addition of newvd may have decreased our parent's asize. | |
| 2634 */ | |
| 2635 pvd->vdev_asize = MIN(pvd->vdev_asize, newvd->vdev_asize); | |
| 2636 | |
| 789 | 2637 tvd = newvd->vdev_top; |
| 2638 ASSERT(pvd->vdev_top == tvd); | |
| 2639 ASSERT(tvd->vdev_parent == rvd); | |
| 2640 | |
| 2641 vdev_config_dirty(tvd); | |
| 2642 | |
| 2643 /* | |
| 2644 * Set newvd's DTL to [TXG_INITIAL, open_txg]. It will propagate | |
| 2645 * upward when spa_vdev_exit() calls vdev_dtl_reassess(). | |
| 2646 */ | |
| 2647 open_txg = txg + TXG_CONCURRENT_STATES - 1; | |
| 2648 | |
| 2649 mutex_enter(&newvd->vdev_dtl_lock); | |
| 2650 space_map_add(&newvd->vdev_dtl_map, TXG_INITIAL, | |
| 2651 open_txg - TXG_INITIAL + 1); | |
| 2652 mutex_exit(&newvd->vdev_dtl_lock); | |
| 2653 | |
|
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2654 if (newvd->vdev_isspare) |
|
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|
2655 spa_spare_activate(newvd); |
| 1544 | 2656 |
| 789 | 2657 /* |
| 2658 * Mark newvd's DTL dirty in this txg. | |
| 2659 */ | |
| 1732 | 2660 vdev_dirty(tvd, VDD_DTL, newvd, txg); |
| 789 | 2661 |
| 2662 (void) spa_vdev_exit(spa, newrootvd, open_txg, 0); | |
| 2663 | |
| 2664 /* | |
| 4451 | 2665 * Kick off a resilver to update newvd. We need to grab the namespace |
| 2666 * lock because spa_scrub() needs to post a sysevent with the pool name. | |
| 789 | 2667 */ |
| 4451 | 2668 mutex_enter(&spa_namespace_lock); |
| 789 | 2669 VERIFY(spa_scrub(spa, POOL_SCRUB_RESILVER, B_TRUE) == 0); |
| 4451 | 2670 mutex_exit(&spa_namespace_lock); |
| 789 | 2671 |
| 2672 return (0); | |
| 2673 } | |
| 2674 | |
| 2675 /* | |
| 2676 * Detach a device from a mirror or replacing vdev. | |
| 2677 * If 'replace_done' is specified, only detach if the parent | |
| 2678 * is a replacing vdev. | |
| 2679 */ | |
| 2680 int | |
| 1544 | 2681 spa_vdev_detach(spa_t *spa, uint64_t guid, int replace_done) |
| 789 | 2682 { |
| 2683 uint64_t txg; | |
| 2684 int c, t, error; | |
| 2685 vdev_t *rvd = spa->spa_root_vdev; | |
| 2686 vdev_t *vd, *pvd, *cvd, *tvd; | |
| 2082 | 2687 boolean_t unspare = B_FALSE; |
| 2688 uint64_t unspare_guid; | |
| 789 | 2689 |
| 2690 txg = spa_vdev_enter(spa); | |
| 2691 | |
| 1544 | 2692 vd = vdev_lookup_by_guid(rvd, guid); |
| 789 | 2693 |
| 2694 if (vd == NULL) | |
| 2695 return (spa_vdev_exit(spa, NULL, txg, ENODEV)); | |
| 2696 | |
|
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|
2697 if (!vd->vdev_ops->vdev_op_leaf) |
|
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|
2698 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
|
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|
2699 |
| 789 | 2700 pvd = vd->vdev_parent; |
| 2701 | |
| 2702 /* | |
| 2703 * If replace_done is specified, only remove this device if it's | |
| 2082 | 2704 * the first child of a replacing vdev. For the 'spare' vdev, either |
| 2705 * disk can be removed. | |
| 789 | 2706 */ |
| 2082 | 2707 if (replace_done) { |
| 2708 if (pvd->vdev_ops == &vdev_replacing_ops) { | |
| 2709 if (vd->vdev_id != 0) | |
| 2710 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
| 2711 } else if (pvd->vdev_ops != &vdev_spare_ops) { | |
| 2712 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
| 2713 } | |
| 2714 } | |
| 2715 | |
| 2716 ASSERT(pvd->vdev_ops != &vdev_spare_ops || | |
| 4577 | 2717 spa_version(spa) >= SPA_VERSION_SPARES); |
| 789 | 2718 |
| 2719 /* | |
| 2082 | 2720 * Only mirror, replacing, and spare vdevs support detach. |
| 789 | 2721 */ |
| 2722 if (pvd->vdev_ops != &vdev_replacing_ops && | |
| 2082 | 2723 pvd->vdev_ops != &vdev_mirror_ops && |
| 2724 pvd->vdev_ops != &vdev_spare_ops) | |
| 789 | 2725 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
| 2726 | |
| 2727 /* | |
| 2728 * If there's only one replica, you can't detach it. | |
| 2729 */ | |
| 2730 if (pvd->vdev_children <= 1) | |
| 2731 return (spa_vdev_exit(spa, NULL, txg, EBUSY)); | |
| 2732 | |
| 2733 /* | |
| 2734 * If all siblings have non-empty DTLs, this device may have the only | |
| 2735 * valid copy of the data, which means we cannot safely detach it. | |
| 2736 * | |
| 2737 * XXX -- as in the vdev_offline() case, we really want a more | |
| 2738 * precise DTL check. | |
| 2739 */ | |
| 2740 for (c = 0; c < pvd->vdev_children; c++) { | |
| 2741 uint64_t dirty; | |
| 2742 | |
| 2743 cvd = pvd->vdev_child[c]; | |
| 2744 if (cvd == vd) | |
| 2745 continue; | |
| 2746 if (vdev_is_dead(cvd)) | |
| 2747 continue; | |
| 2748 mutex_enter(&cvd->vdev_dtl_lock); | |
| 2749 dirty = cvd->vdev_dtl_map.sm_space | | |
| 2750 cvd->vdev_dtl_scrub.sm_space; | |
| 2751 mutex_exit(&cvd->vdev_dtl_lock); | |
| 2752 if (!dirty) | |
| 2753 break; | |
| 2754 } | |
| 2082 | 2755 |
| 2756 /* | |
| 2757 * If we are a replacing or spare vdev, then we can always detach the | |
| 2758 * latter child, as that is how one cancels the operation. | |
| 2759 */ | |
| 2760 if ((pvd->vdev_ops == &vdev_mirror_ops || vd->vdev_id != 1) && | |
| 2761 c == pvd->vdev_children) | |
| 789 | 2762 return (spa_vdev_exit(spa, NULL, txg, EBUSY)); |
| 2763 | |
| 2764 /* | |
| 2082 | 2765 * If we are detaching the original disk from a spare, then it implies |
| 2766 * that the spare should become a real disk, and be removed from the | |
| 2767 * active spare list for the pool. | |
| 2768 */ | |
| 2769 if (pvd->vdev_ops == &vdev_spare_ops && | |
| 2770 vd->vdev_id == 0) | |
| 2771 unspare = B_TRUE; | |
| 2772 | |
| 2773 /* | |
| 789 | 2774 * Erase the disk labels so the disk can be used for other things. |
| 2775 * This must be done after all other error cases are handled, | |
| 2776 * but before we disembowel vd (so we can still do I/O to it). | |
| 2777 * But if we can't do it, don't treat the error as fatal -- | |
| 2778 * it may be that the unwritability of the disk is the reason | |
| 2779 * it's being detached! | |
| 2780 */ | |
|
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|
2781 error = vdev_label_init(vd, 0, VDEV_LABEL_REMOVE); |
| 789 | 2782 |
| 2783 /* | |
| 2784 * Remove vd from its parent and compact the parent's children. | |
| 2785 */ | |
| 2786 vdev_remove_child(pvd, vd); | |
| 2787 vdev_compact_children(pvd); | |
| 2788 | |
| 2789 /* | |
| 2790 * Remember one of the remaining children so we can get tvd below. | |
| 2791 */ | |
| 2792 cvd = pvd->vdev_child[0]; | |
| 2793 | |
| 2794 /* | |
| 2082 | 2795 * If we need to remove the remaining child from the list of hot spares, |
| 2796 * do it now, marking the vdev as no longer a spare in the process. We | |
| 2797 * must do this before vdev_remove_parent(), because that can change the | |
| 2798 * GUID if it creates a new toplevel GUID. | |
| 2799 */ | |
| 2800 if (unspare) { | |
| 2801 ASSERT(cvd->vdev_isspare); | |
|
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|
2802 spa_spare_remove(cvd); |
| 2082 | 2803 unspare_guid = cvd->vdev_guid; |
| 2804 } | |
| 2805 | |
| 2806 /* | |
| 789 | 2807 * If the parent mirror/replacing vdev only has one child, |
| 2808 * the parent is no longer needed. Remove it from the tree. | |
| 2809 */ | |
| 2810 if (pvd->vdev_children == 1) | |
| 2811 vdev_remove_parent(cvd); | |
| 2812 | |
| 2813 /* | |
| 2814 * We don't set tvd until now because the parent we just removed | |
| 2815 * may have been the previous top-level vdev. | |
| 2816 */ | |
| 2817 tvd = cvd->vdev_top; | |
| 2818 ASSERT(tvd->vdev_parent == rvd); | |
| 2819 | |
| 2820 /* | |
|
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|
2821 * Reevaluate the parent vdev state. |
| 789 | 2822 */ |
| 4451 | 2823 vdev_propagate_state(cvd); |
| 789 | 2824 |
| 2825 /* | |
|
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|
2826 * If the device we just detached was smaller than the others, it may be |
|
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|
2827 * possible to add metaslabs (i.e. grow the pool). vdev_metaslab_init() |
|
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|
2828 * can't fail because the existing metaslabs are already in core, so |
|
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|
2829 * there's nothing to read from disk. |
| 789 | 2830 */ |
| 1732 | 2831 VERIFY(vdev_metaslab_init(tvd, txg) == 0); |
| 789 | 2832 |
| 2833 vdev_config_dirty(tvd); | |
| 2834 | |
| 2835 /* | |
|
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|
2836 * Mark vd's DTL as dirty in this txg. vdev_dtl_sync() will see that |
|
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|
2837 * vd->vdev_detached is set and free vd's DTL object in syncing context. |
|
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|
2838 * But first make sure we're not on any *other* txg's DTL list, to |
|
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|
2839 * prevent vd from being accessed after it's freed. |
| 789 | 2840 */ |
| 2841 for (t = 0; t < TXG_SIZE; t++) | |
| 2842 (void) txg_list_remove_this(&tvd->vdev_dtl_list, vd, t); | |
| 1732 | 2843 vd->vdev_detached = B_TRUE; |
| 2844 vdev_dirty(tvd, VDD_DTL, vd, txg); | |
| 789 | 2845 |
| 4451 | 2846 spa_event_notify(spa, vd, ESC_ZFS_VDEV_REMOVE); |
| 2847 | |
| 2082 | 2848 error = spa_vdev_exit(spa, vd, txg, 0); |
| 2849 | |
| 2850 /* | |
|
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|
2851 * If this was the removal of the original device in a hot spare vdev, |
|
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|
2852 * then we want to go through and remove the device from the hot spare |
|
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|
2853 * list of every other pool. |
| 2082 | 2854 */ |
| 2855 if (unspare) { | |
| 2856 spa = NULL; | |
| 2857 mutex_enter(&spa_namespace_lock); | |
| 2858 while ((spa = spa_next(spa)) != NULL) { | |
| 2859 if (spa->spa_state != POOL_STATE_ACTIVE) | |
| 2860 continue; | |
| 2861 | |
| 2862 (void) spa_vdev_remove(spa, unspare_guid, B_TRUE); | |
| 2863 } | |
| 2864 mutex_exit(&spa_namespace_lock); | |
| 2865 } | |
| 2866 | |
| 2867 return (error); | |
| 2868 } | |
| 2869 | |
| 2870 /* | |
| 5450 | 2871 * Remove a spares vdev from the nvlist config. |
| 2082 | 2872 */ |
| 5450 | 2873 static int |
| 2874 spa_remove_spares(spa_aux_vdev_t *sav, uint64_t guid, boolean_t unspare, | |
| 2875 nvlist_t **spares, int nspares, vdev_t *vd) | |
| 2082 | 2876 { |
| 5450 | 2877 nvlist_t *nv, **newspares; |
| 2878 int i, j; | |
| 2082 | 2879 |
| 2880 nv = NULL; | |
| 5450 | 2881 for (i = 0; i < nspares; i++) { |
| 2882 uint64_t theguid; | |
| 2883 | |
| 2884 VERIFY(nvlist_lookup_uint64(spares[i], | |
| 2885 ZPOOL_CONFIG_GUID, &theguid) == 0); | |
| 2886 if (theguid == guid) { | |
| 2887 nv = spares[i]; | |
| 2888 break; | |
| 2082 | 2889 } |
| 2890 } | |
| 2891 | |
| 2892 /* | |
| 5450 | 2893 * Only remove the hot spare if it's not currently in use in this pool. |
| 2082 | 2894 */ |
| 5450 | 2895 if (nv == NULL && vd == NULL) |
| 2896 return (ENOENT); | |
| 2897 | |
| 2898 if (nv == NULL && vd != NULL) | |
| 2899 return (ENOTSUP); | |
| 2900 | |
| 2901 if (!unspare && nv != NULL && vd != NULL) | |
| 2902 return (EBUSY); | |
| 2082 | 2903 |
| 2904 if (nspares == 1) { | |
| 2905 newspares = NULL; | |
| 2906 } else { | |
| 2907 newspares = kmem_alloc((nspares - 1) * sizeof (void *), | |
| 2908 KM_SLEEP); | |
| 2909 for (i = 0, j = 0; i < nspares; i++) { | |
| 2910 if (spares[i] != nv) | |
| 2911 VERIFY(nvlist_dup(spares[i], | |
| 2912 &newspares[j++], KM_SLEEP) == 0); | |
| 2913 } | |
| 2914 } | |
| 2915 | |
| 5450 | 2916 VERIFY(nvlist_remove(sav->sav_config, ZPOOL_CONFIG_SPARES, |
| 2082 | 2917 DATA_TYPE_NVLIST_ARRAY) == 0); |
| 5450 | 2918 VERIFY(nvlist_add_nvlist_array(sav->sav_config, |
| 2919 ZPOOL_CONFIG_SPARES, newspares, nspares - 1) == 0); | |
| 2082 | 2920 for (i = 0; i < nspares - 1; i++) |
| 2921 nvlist_free(newspares[i]); | |
| 2922 kmem_free(newspares, (nspares - 1) * sizeof (void *)); | |
| 5450 | 2923 |
| 2924 return (0); | |
| 2925 } | |
| 2926 | |
| 2927 /* | |
| 2928 * Remove an l2cache vdev from the nvlist config. | |
| 2929 */ | |
| 2930 static int | |
| 2931 spa_remove_l2cache(spa_aux_vdev_t *sav, uint64_t guid, nvlist_t **l2cache, | |
| 2932 int nl2cache, vdev_t *vd) | |
| 2933 { | |
| 2934 nvlist_t *nv, **newl2cache; | |
| 2935 int i, j; | |
| 2936 | |
| 2937 nv = NULL; | |
| 2938 for (i = 0; i < nl2cache; i++) { | |
| 2939 uint64_t theguid; | |
| 2940 | |
| 2941 VERIFY(nvlist_lookup_uint64(l2cache[i], | |
| 2942 ZPOOL_CONFIG_GUID, &theguid) == 0); | |
| 2943 if (theguid == guid) { | |
| 2944 nv = l2cache[i]; | |
| 2945 break; | |
| 2946 } | |
| 2947 } | |
| 2948 | |
| 2949 if (vd == NULL) { | |
| 2950 for (i = 0; i < nl2cache; i++) { | |
| 2951 if (sav->sav_vdevs[i]->vdev_guid == guid) { | |
| 2952 vd = sav->sav_vdevs[i]; | |
| 2953 break; | |
| 2954 } | |
| 2955 } | |
| 2956 } | |
| 2957 | |
| 2958 if (nv == NULL && vd == NULL) | |
| 2959 return (ENOENT); | |
| 2960 | |
| 2961 if (nv == NULL && vd != NULL) | |
| 2962 return (ENOTSUP); | |
| 2963 | |
| 2964 if (nl2cache == 1) { | |
| 2965 newl2cache = NULL; | |
| 2966 } else { | |
| 2967 newl2cache = kmem_alloc((nl2cache - 1) * sizeof (void *), | |
| 2968 KM_SLEEP); | |
| 2969 for (i = 0, j = 0; i < nl2cache; i++) { | |
| 2970 if (l2cache[i] != nv) | |
| 2971 VERIFY(nvlist_dup(l2cache[i], | |
| 2972 &newl2cache[j++], KM_SLEEP) == 0); | |
| 2973 } | |
| 2974 } | |
| 2975 | |
| 2976 VERIFY(nvlist_remove(sav->sav_config, ZPOOL_CONFIG_L2CACHE, | |
| 2977 DATA_TYPE_NVLIST_ARRAY) == 0); | |
| 2978 VERIFY(nvlist_add_nvlist_array(sav->sav_config, | |
| 2979 ZPOOL_CONFIG_L2CACHE, newl2cache, nl2cache - 1) == 0); | |
| 2980 for (i = 0; i < nl2cache - 1; i++) | |
| 2981 nvlist_free(newl2cache[i]); | |
| 2982 kmem_free(newl2cache, (nl2cache - 1) * sizeof (void *)); | |
| 2983 | |
| 2984 return (0); | |
| 2985 } | |
| 2986 | |
| 2987 /* | |
| 2988 * Remove a device from the pool. Currently, this supports removing only hot | |
| 2989 * spares and level 2 ARC devices. | |
| 2990 */ | |
| 2991 int | |
| 2992 spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare) | |
| 2993 { | |
| 2994 vdev_t *vd; | |
| 2995 nvlist_t **spares, **l2cache; | |
| 2996 uint_t nspares, nl2cache; | |
| 2997 int error = 0; | |
| 2998 | |
| 2999 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 3000 | |
| 3001 vd = spa_lookup_by_guid(spa, guid); | |
| 3002 | |
| 3003 if (spa->spa_spares.sav_vdevs != NULL && | |
| 3004 spa_spare_exists(guid, NULL) && | |
| 3005 nvlist_lookup_nvlist_array(spa->spa_spares.sav_config, | |
| 3006 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0) { | |
| 3007 if ((error = spa_remove_spares(&spa->spa_spares, guid, unspare, | |
| 3008 spares, nspares, vd)) != 0) | |
| 3009 goto out; | |
| 3010 spa_load_spares(spa); | |
| 3011 spa->spa_spares.sav_sync = B_TRUE; | |
| 3012 goto out; | |
| 3013 } | |
| 3014 | |
| 3015 if (spa->spa_l2cache.sav_vdevs != NULL && | |
| 3016 spa_l2cache_exists(guid, NULL) && | |
| 3017 nvlist_lookup_nvlist_array(spa->spa_l2cache.sav_config, | |
| 3018 ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0) { | |
| 3019 if ((error = spa_remove_l2cache(&spa->spa_l2cache, guid, | |
| 3020 l2cache, nl2cache, vd)) != 0) | |
| 3021 goto out; | |
| 3022 spa_load_l2cache(spa); | |
| 3023 spa->spa_l2cache.sav_sync = B_TRUE; | |
| 3024 } | |
| 2082 | 3025 |
| 3026 out: | |
| 3027 spa_config_exit(spa, FTAG); | |
| 5450 | 3028 return (error); |
| 789 | 3029 } |
| 3030 | |
| 3031 /* | |
| 4451 | 3032 * Find any device that's done replacing, or a vdev marked 'unspare' that's |
| 3033 * current spared, so we can detach it. | |
| 789 | 3034 */ |
| 1544 | 3035 static vdev_t * |
| 4451 | 3036 spa_vdev_resilver_done_hunt(vdev_t *vd) |
| 789 | 3037 { |
| 1544 | 3038 vdev_t *newvd, *oldvd; |
| 789 | 3039 int c; |
| 3040 | |
| 1544 | 3041 for (c = 0; c < vd->vdev_children; c++) { |
| 4451 | 3042 oldvd = spa_vdev_resilver_done_hunt(vd->vdev_child[c]); |
| 1544 | 3043 if (oldvd != NULL) |
| 3044 return (oldvd); | |
| 3045 } | |
| 789 | 3046 |
| 4451 | 3047 /* |
| 3048 * Check for a completed replacement. | |
| 3049 */ | |
| 789 | 3050 if (vd->vdev_ops == &vdev_replacing_ops && vd->vdev_children == 2) { |
| 1544 | 3051 oldvd = vd->vdev_child[0]; |
| 3052 newvd = vd->vdev_child[1]; | |
| 789 | 3053 |
| 1544 | 3054 mutex_enter(&newvd->vdev_dtl_lock); |
| 3055 if (newvd->vdev_dtl_map.sm_space == 0 && | |
| 3056 newvd->vdev_dtl_scrub.sm_space == 0) { | |
| 3057 mutex_exit(&newvd->vdev_dtl_lock); | |
| 3058 return (oldvd); | |
| 3059 } | |
| 3060 mutex_exit(&newvd->vdev_dtl_lock); | |
| 3061 } | |
| 789 | 3062 |
| 4451 | 3063 /* |
| 3064 * Check for a completed resilver with the 'unspare' flag set. | |
| 3065 */ | |
| 3066 if (vd->vdev_ops == &vdev_spare_ops && vd->vdev_children == 2) { | |
| 3067 newvd = vd->vdev_child[0]; | |
| 3068 oldvd = vd->vdev_child[1]; | |
| 3069 | |
| 3070 mutex_enter(&newvd->vdev_dtl_lock); | |
| 3071 if (newvd->vdev_unspare && | |
| 3072 newvd->vdev_dtl_map.sm_space == 0 && | |
| 3073 newvd->vdev_dtl_scrub.sm_space == 0) { | |
| 3074 newvd->vdev_unspare = 0; | |
| 3075 mutex_exit(&newvd->vdev_dtl_lock); | |
| 3076 return (oldvd); | |
| 3077 } | |
| 3078 mutex_exit(&newvd->vdev_dtl_lock); | |
| 3079 } | |
| 3080 | |
| 1544 | 3081 return (NULL); |
| 789 | 3082 } |
| 3083 | |
| 1544 | 3084 static void |
| 4451 | 3085 spa_vdev_resilver_done(spa_t *spa) |
| 789 | 3086 { |
| 1544 | 3087 vdev_t *vd; |
| 2082 | 3088 vdev_t *pvd; |
| 1544 | 3089 uint64_t guid; |
| 2082 | 3090 uint64_t pguid = 0; |
| 789 | 3091 |
| 1544 | 3092 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 3093 |
| 4451 | 3094 while ((vd = spa_vdev_resilver_done_hunt(spa->spa_root_vdev)) != NULL) { |
| 1544 | 3095 guid = vd->vdev_guid; |
| 2082 | 3096 /* |
| 3097 * If we have just finished replacing a hot spared device, then | |
| 3098 * we need to detach the parent's first child (the original hot | |
| 3099 * spare) as well. | |
| 3100 */ | |
| 3101 pvd = vd->vdev_parent; | |
| 3102 if (pvd->vdev_parent->vdev_ops == &vdev_spare_ops && | |
| 3103 pvd->vdev_id == 0) { | |
| 3104 ASSERT(pvd->vdev_ops == &vdev_replacing_ops); | |
| 3105 ASSERT(pvd->vdev_parent->vdev_children == 2); | |
| 3106 pguid = pvd->vdev_parent->vdev_child[1]->vdev_guid; | |
| 3107 } | |
| 1544 | 3108 spa_config_exit(spa, FTAG); |
| 3109 if (spa_vdev_detach(spa, guid, B_TRUE) != 0) | |
| 3110 return; | |
| 2082 | 3111 if (pguid != 0 && spa_vdev_detach(spa, pguid, B_TRUE) != 0) |
| 3112 return; | |
| 1544 | 3113 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 3114 } |
| 3115 | |
| 1544 | 3116 spa_config_exit(spa, FTAG); |
| 789 | 3117 } |
| 3118 | |
| 3119 /* | |
|
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3120 * Update the stored path for this vdev. Dirty the vdev configuration, relying |
|
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|
3121 * on spa_vdev_enter/exit() to synchronize the labels and cache. |
|
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|
3122 */ |
|
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|
3123 int |
|
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|
3124 spa_vdev_setpath(spa_t *spa, uint64_t guid, const char *newpath) |
|
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|
3125 { |
|
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|
3126 vdev_t *rvd, *vd; |
|
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|
3127 uint64_t txg; |
|
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|
3128 |
|
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|
3129 rvd = spa->spa_root_vdev; |
|
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|
3130 |
|
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|
3131 txg = spa_vdev_enter(spa); |
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|
3132 |
| 2082 | 3133 if ((vd = vdev_lookup_by_guid(rvd, guid)) == NULL) { |
| 3134 /* | |
| 5450 | 3135 * Determine if this is a reference to a hot spare or l2cache |
| 3136 * device. If it is, update the path as stored in their | |
| 3137 * device list. | |
| 2082 | 3138 */ |
| 5450 | 3139 nvlist_t **spares, **l2cache; |
| 3140 uint_t i, nspares, nl2cache; | |
| 3141 | |
| 3142 if (spa->spa_spares.sav_config != NULL) { | |
| 3143 VERIFY(nvlist_lookup_nvlist_array( | |
| 3144 spa->spa_spares.sav_config, ZPOOL_CONFIG_SPARES, | |
| 3145 &spares, &nspares) == 0); | |
| 2082 | 3146 for (i = 0; i < nspares; i++) { |
| 3147 uint64_t theguid; | |
| 3148 VERIFY(nvlist_lookup_uint64(spares[i], | |
| 3149 ZPOOL_CONFIG_GUID, &theguid) == 0); | |
| 5450 | 3150 if (theguid == guid) { |
| 3151 VERIFY(nvlist_add_string(spares[i], | |
| 3152 ZPOOL_CONFIG_PATH, newpath) == 0); | |
| 3153 spa_load_spares(spa); | |
| 3154 spa->spa_spares.sav_sync = B_TRUE; | |
| 3155 return (spa_vdev_exit(spa, NULL, txg, | |
| 3156 0)); | |
| 3157 } | |
| 2082 | 3158 } |
| 3159 } | |
| 5450 | 3160 |
| 3161 if (spa->spa_l2cache.sav_config != NULL) { | |
| 3162 VERIFY(nvlist_lookup_nvlist_array( | |
| 3163 spa->spa_l2cache.sav_config, ZPOOL_CONFIG_L2CACHE, | |
| 3164 &l2cache, &nl2cache) == 0); | |
| 3165 for (i = 0; i < nl2cache; i++) { | |
| 3166 uint64_t theguid; | |
| 3167 VERIFY(nvlist_lookup_uint64(l2cache[i], | |
| 3168 ZPOOL_CONFIG_GUID, &theguid) == 0); | |
| 3169 if (theguid == guid) { | |
| 3170 VERIFY(nvlist_add_string(l2cache[i], | |
| 3171 ZPOOL_CONFIG_PATH, newpath) == 0); | |
| 3172 spa_load_l2cache(spa); | |
| 3173 spa->spa_l2cache.sav_sync = B_TRUE; | |
| 3174 return (spa_vdev_exit(spa, NULL, txg, | |
| 3175 0)); | |
| 3176 } | |
| 3177 } | |
| 3178 } | |
| 3179 | |
| 3180 return (spa_vdev_exit(spa, NULL, txg, ENOENT)); | |
| 2082 | 3181 } |
|
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3182 |
|
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|
3183 if (!vd->vdev_ops->vdev_op_leaf) |
|
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|
3184 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
|
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|
3185 |
|
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3186 spa_strfree(vd->vdev_path); |
|
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|
3187 vd->vdev_path = spa_strdup(newpath); |
|
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|
3188 |
|
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|
3189 vdev_config_dirty(vd->vdev_top); |
|
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|
3190 |
|
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|
3191 return (spa_vdev_exit(spa, NULL, txg, 0)); |
|
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|
3192 } |
|
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|
3193 |
|
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|
3194 /* |
| 789 | 3195 * ========================================================================== |
| 3196 * SPA Scrubbing | |
| 3197 * ========================================================================== | |
| 3198 */ | |
| 3199 | |
| 3200 static void | |
| 3201 spa_scrub_io_done(zio_t *zio) | |
| 3202 { | |
| 3203 spa_t *spa = zio->io_spa; | |
| 3204 | |
|
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|
3205 arc_data_buf_free(zio->io_data, zio->io_size); |
| 789 | 3206 |
| 3207 mutex_enter(&spa->spa_scrub_lock); | |
| 1544 | 3208 if (zio->io_error && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { |
|
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|
3209 vdev_t *vd = zio->io_vd ? zio->io_vd : spa->spa_root_vdev; |
| 789 | 3210 spa->spa_scrub_errors++; |
| 3211 mutex_enter(&vd->vdev_stat_lock); | |
| 3212 vd->vdev_stat.vs_scrub_errors++; | |
| 3213 mutex_exit(&vd->vdev_stat_lock); | |
| 3214 } | |
|
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|
3215 |
|
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|
3216 if (--spa->spa_scrub_inflight < spa->spa_scrub_maxinflight) |
| 1544 | 3217 cv_broadcast(&spa->spa_scrub_io_cv); |
|
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|
3218 |
|
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|
3219 ASSERT(spa->spa_scrub_inflight >= 0); |
|
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|
3220 |
| 1544 | 3221 mutex_exit(&spa->spa_scrub_lock); |
| 789 | 3222 } |
| 3223 | |
| 3224 static void | |
| 1544 | 3225 spa_scrub_io_start(spa_t *spa, blkptr_t *bp, int priority, int flags, |
| 3226 zbookmark_t *zb) | |
| 789 | 3227 { |
| 3228 size_t size = BP_GET_LSIZE(bp); | |
|
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|
3229 void *data; |
| 789 | 3230 |
| 3231 mutex_enter(&spa->spa_scrub_lock); | |
|
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|
3232 /* |
|
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|
3233 * Do not give too much work to vdev(s). |
|
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|
3234 */ |
|
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|
3235 while (spa->spa_scrub_inflight >= spa->spa_scrub_maxinflight) { |
|
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|
3236 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); |
|
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|
3237 } |
| 789 | 3238 spa->spa_scrub_inflight++; |
| 3239 mutex_exit(&spa->spa_scrub_lock); | |
| 3240 | |
|
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|
3241 data = arc_data_buf_alloc(size); |
|
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|
3242 |
| 1544 | 3243 if (zb->zb_level == -1 && BP_GET_TYPE(bp) != DMU_OT_OBJSET) |
| 3244 flags |= ZIO_FLAG_SPECULATIVE; /* intent log block */ | |
| 3245 | |
|
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|
3246 flags |= ZIO_FLAG_SCRUB_THREAD | ZIO_FLAG_CANFAIL; |
| 1544 | 3247 |
| 789 | 3248 zio_nowait(zio_read(NULL, spa, bp, data, size, |
| 1544 | 3249 spa_scrub_io_done, NULL, priority, flags, zb)); |
| 789 | 3250 } |
| 3251 | |
| 3252 /* ARGSUSED */ | |
| 3253 static int | |
| 3254 spa_scrub_cb(traverse_blk_cache_t *bc, spa_t *spa, void *a) | |
| 3255 { | |
| 3256 blkptr_t *bp = &bc->bc_blkptr; | |
|
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|
3257 vdev_t *vd = spa->spa_root_vdev; |
|
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|
3258 dva_t *dva = bp->blk_dva; |
|
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|
3259 int needs_resilver = B_FALSE; |
|
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|
3260 int d; |
| 789 | 3261 |
|
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|
3262 if (bc->bc_errno) { |
| 789 | 3263 /* |
| 3264 * We can't scrub this block, but we can continue to scrub | |
| 3265 * the rest of the pool. Note the error and move along. | |
| 3266 */ | |
| 3267 mutex_enter(&spa->spa_scrub_lock); | |
| 3268 spa->spa_scrub_errors++; | |
| 3269 mutex_exit(&spa->spa_scrub_lock); | |
| 3270 | |
|
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|
3271 mutex_enter(&vd->vdev_stat_lock); |
|
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|
3272 vd->vdev_stat.vs_scrub_errors++; |
|
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|
3273 mutex_exit(&vd->vdev_stat_lock); |
| 789 | 3274 |
| 3275 return (ERESTART); | |
| 3276 } | |
| 3277 | |
| 3278 ASSERT(bp->blk_birth < spa->spa_scrub_maxtxg); | |
| 3279 | |
|
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|
3280 for (d = 0; d < BP_GET_NDVAS(bp); d++) { |
|
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|
3281 vd = vdev_lookup_top(spa, DVA_GET_VDEV(&dva[d])); |
|
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|
3282 |
|
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|
3283 ASSERT(vd != NULL); |
|
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|
3284 |
|
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|
3285 /* |
|
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|
3286 * Keep track of how much data we've examined so that |
|
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|
3287 * zpool(1M) status can make useful progress reports. |
|
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|
3288 */ |
|
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|
3289 mutex_enter(&vd->vdev_stat_lock); |
|
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|
3290 vd->vdev_stat.vs_scrub_examined += DVA_GET_ASIZE(&dva[d]); |
|
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|
3291 mutex_exit(&vd->vdev_stat_lock); |
| 789 | 3292 |
|
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3293 if (spa->spa_scrub_type == POOL_SCRUB_RESILVER) { |
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|
3294 if (DVA_GET_GANG(&dva[d])) { |
|
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|
3295 /* |
|
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|
3296 * Gang members may be spread across multiple |
|
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|
3297 * vdevs, so the best we can do is look at the |
|
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|
3298 * pool-wide DTL. |
|
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|
3299 * XXX -- it would be better to change our |
|
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|
3300 * allocation policy to ensure that this can't |
|
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|
3301 * happen. |
|
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|
3302 */ |
|
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|
3303 vd = spa->spa_root_vdev; |
|
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|
3304 } |
|
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|
3305 if (vdev_dtl_contains(&vd->vdev_dtl_map, |
|
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|
3306 bp->blk_birth, 1)) |
|
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|
3307 needs_resilver = B_TRUE; |
| 789 | 3308 } |
|
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|
3309 } |
|
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|
3310 |
|
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|
3311 if (spa->spa_scrub_type == POOL_SCRUB_EVERYTHING) |
| 789 | 3312 spa_scrub_io_start(spa, bp, ZIO_PRIORITY_SCRUB, |
| 1544 | 3313 ZIO_FLAG_SCRUB, &bc->bc_bookmark); |
|
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|
3314 else if (needs_resilver) |
|
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|
3315 spa_scrub_io_start(spa, bp, ZIO_PRIORITY_RESILVER, |
|
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|
3316 ZIO_FLAG_RESILVER, &bc->bc_bookmark); |
| 789 | 3317 |
| 3318 return (0); | |
| 3319 } | |
| 3320 | |
| 3321 static void | |
| 3322 spa_scrub_thread(spa_t *spa) | |
| 3323 { | |
| 3324 callb_cpr_t cprinfo; | |
| 3325 traverse_handle_t *th = spa->spa_scrub_th; | |
| 3326 vdev_t *rvd = spa->spa_root_vdev; | |
| 3327 pool_scrub_type_t scrub_type = spa->spa_scrub_type; | |
| 3328 int error = 0; | |
| 3329 boolean_t complete; | |
| 3330 | |
| 3331 CALLB_CPR_INIT(&cprinfo, &spa->spa_scrub_lock, callb_generic_cpr, FTAG); | |
| 3332 | |
|
797
af56ba8b7e41
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diff
changeset
|
3333 /* |
|
af56ba8b7e41
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diff
changeset
|
3334 * If we're restarting due to a snapshot create/delete, |
|
af56ba8b7e41
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789
diff
changeset
|
3335 * wait for that to complete. |
|
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diff
changeset
|
3336 */ |
|
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3337 txg_wait_synced(spa_get_dsl(spa), 0); |
|
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3338 |
| 1544 | 3339 dprintf("start %s mintxg=%llu maxtxg=%llu\n", |
| 3340 scrub_type == POOL_SCRUB_RESILVER ? "resilver" : "scrub", | |
| 3341 spa->spa_scrub_mintxg, spa->spa_scrub_maxtxg); | |
| 3342 | |
| 3343 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 3344 vdev_reopen(rvd); /* purge all vdev caches */ | |
| 789 | 3345 vdev_config_dirty(rvd); /* rewrite all disk labels */ |
| 3346 vdev_scrub_stat_update(rvd, scrub_type, B_FALSE); | |
| 1544 | 3347 spa_config_exit(spa, FTAG); |
| 789 | 3348 |
| 3349 mutex_enter(&spa->spa_scrub_lock); | |
| 3350 spa->spa_scrub_errors = 0; | |
| 3351 spa->spa_scrub_active = 1; | |
| 1544 | 3352 ASSERT(spa->spa_scrub_inflight == 0); |
| 789 | 3353 |
| 3354 while (!spa->spa_scrub_stop) { | |
| 3355 CALLB_CPR_SAFE_BEGIN(&cprinfo); | |
| 1544 | 3356 while (spa->spa_scrub_suspended) { |
| 789 | 3357 spa->spa_scrub_active = 0; |
| 3358 cv_broadcast(&spa->spa_scrub_cv); | |
| 3359 cv_wait(&spa->spa_scrub_cv, &spa->spa_scrub_lock); | |
| 3360 spa->spa_scrub_active = 1; | |
| 3361 } | |
| 3362 CALLB_CPR_SAFE_END(&cprinfo, &spa->spa_scrub_lock); | |
| 3363 | |
| 3364 if (spa->spa_scrub_restart_txg != 0) | |
| 3365 break; | |
| 3366 | |
| 3367 mutex_exit(&spa->spa_scrub_lock); | |
| 3368 error = traverse_more(th); | |
| 3369 mutex_enter(&spa->spa_scrub_lock); | |
| 3370 if (error != EAGAIN) | |
| 3371 break; | |
| 3372 } | |
| 3373 | |
| 3374 while (spa->spa_scrub_inflight) | |
| 3375 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); | |
| 3376 | |
|
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3377 spa->spa_scrub_active = 0; |
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3378 cv_broadcast(&spa->spa_scrub_cv); |
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3379 |
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|
3380 mutex_exit(&spa->spa_scrub_lock); |
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3381 |
|
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|
3382 spa_config_enter(spa, RW_WRITER, FTAG); |
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3383 |
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|
3384 mutex_enter(&spa->spa_scrub_lock); |
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|
3385 |
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|
3386 /* |
|
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|
3387 * Note: we check spa_scrub_restart_txg under both spa_scrub_lock |
|
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|
3388 * AND the spa config lock to synchronize with any config changes |
|
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|
3389 * that revise the DTLs under spa_vdev_enter() / spa_vdev_exit(). |
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|
3390 */ |
| 789 | 3391 if (spa->spa_scrub_restart_txg != 0) |
| 3392 error = ERESTART; | |
| 3393 | |
| 1544 | 3394 if (spa->spa_scrub_stop) |
| 3395 error = EINTR; | |
| 3396 | |
| 789 | 3397 /* |
| 1544 | 3398 * Even if there were uncorrectable errors, we consider the scrub |
| 3399 * completed. The downside is that if there is a transient error during | |
| 3400 * a resilver, we won't resilver the data properly to the target. But | |
| 3401 * if the damage is permanent (more likely) we will resilver forever, | |
| 3402 * which isn't really acceptable. Since there is enough information for | |
| 3403 * the user to know what has failed and why, this seems like a more | |
| 3404 * tractable approach. | |
| 789 | 3405 */ |
| 1544 | 3406 complete = (error == 0); |
| 789 | 3407 |
| 1544 | 3408 dprintf("end %s to maxtxg=%llu %s, traverse=%d, %llu errors, stop=%u\n", |
| 3409 scrub_type == POOL_SCRUB_RESILVER ? "resilver" : "scrub", | |
| 789 | 3410 spa->spa_scrub_maxtxg, complete ? "done" : "FAILED", |
| 3411 error, spa->spa_scrub_errors, spa->spa_scrub_stop); | |
| 3412 | |
| 3413 mutex_exit(&spa->spa_scrub_lock); | |
| 3414 | |
| 3415 /* | |
| 3416 * If the scrub/resilver completed, update all DTLs to reflect this. | |
| 3417 * Whether it succeeded or not, vacate all temporary scrub DTLs. | |
| 3418 */ | |
| 3419 vdev_dtl_reassess(rvd, spa_last_synced_txg(spa) + 1, | |
| 3420 complete ? spa->spa_scrub_maxtxg : 0, B_TRUE); | |
| 3421 vdev_scrub_stat_update(rvd, POOL_SCRUB_NONE, complete); | |
| 1544 | 3422 spa_errlog_rotate(spa); |
|
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3423 |
| 4451 | 3424 if (scrub_type == POOL_SCRUB_RESILVER && complete) |
| 3425 spa_event_notify(spa, NULL, ESC_ZFS_RESILVER_FINISH); | |
| 3426 | |
| 1544 | 3427 spa_config_exit(spa, FTAG); |
| 789 | 3428 |
| 3429 mutex_enter(&spa->spa_scrub_lock); | |
| 3430 | |
| 1544 | 3431 /* |
| 3432 * We may have finished replacing a device. | |
| 3433 * Let the async thread assess this and handle the detach. | |
| 3434 */ | |
| 4451 | 3435 spa_async_request(spa, SPA_ASYNC_RESILVER_DONE); |
| 789 | 3436 |
| 3437 /* | |
| 3438 * If we were told to restart, our final act is to start a new scrub. | |
| 3439 */ | |
| 3440 if (error == ERESTART) | |
| 1544 | 3441 spa_async_request(spa, scrub_type == POOL_SCRUB_RESILVER ? |
| 3442 SPA_ASYNC_RESILVER : SPA_ASYNC_SCRUB); | |
| 789 | 3443 |
| 1544 | 3444 spa->spa_scrub_type = POOL_SCRUB_NONE; |
| 3445 spa->spa_scrub_active = 0; | |
| 3446 spa->spa_scrub_thread = NULL; | |
| 3447 cv_broadcast(&spa->spa_scrub_cv); | |
| 789 | 3448 CALLB_CPR_EXIT(&cprinfo); /* drops &spa->spa_scrub_lock */ |
| 3449 thread_exit(); | |
| 3450 } | |
| 3451 | |
| 3452 void | |
| 3453 spa_scrub_suspend(spa_t *spa) | |
| 3454 { | |
| 3455 mutex_enter(&spa->spa_scrub_lock); | |
| 1544 | 3456 spa->spa_scrub_suspended++; |
| 789 | 3457 while (spa->spa_scrub_active) { |
| 3458 cv_broadcast(&spa->spa_scrub_cv); | |
| 3459 cv_wait(&spa->spa_scrub_cv, &spa->spa_scrub_lock); | |
| 3460 } | |
| 3461 while (spa->spa_scrub_inflight) | |
| 3462 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); | |
| 3463 mutex_exit(&spa->spa_scrub_lock); | |
| 3464 } | |
| 3465 | |
| 3466 void | |
| 3467 spa_scrub_resume(spa_t *spa) | |
| 3468 { | |
| 3469 mutex_enter(&spa->spa_scrub_lock); | |
| 1544 | 3470 ASSERT(spa->spa_scrub_suspended != 0); |
| 3471 if (--spa->spa_scrub_suspended == 0) | |
| 789 | 3472 cv_broadcast(&spa->spa_scrub_cv); |
| 3473 mutex_exit(&spa->spa_scrub_lock); | |
| 3474 } | |
| 3475 | |
| 3476 void | |
| 3477 spa_scrub_restart(spa_t *spa, uint64_t txg) | |
| 3478 { | |
| 3479 /* | |
| 3480 * Something happened (e.g. snapshot create/delete) that means | |
| 3481 * we must restart any in-progress scrubs. The itinerary will | |
| 3482 * fix this properly. | |
| 3483 */ | |
| 3484 mutex_enter(&spa->spa_scrub_lock); | |
| 3485 spa->spa_scrub_restart_txg = txg; | |
| 3486 mutex_exit(&spa->spa_scrub_lock); | |
| 3487 } | |
| 3488 | |
| 1544 | 3489 int |
| 3490 spa_scrub(spa_t *spa, pool_scrub_type_t type, boolean_t force) | |
| 789 | 3491 { |
| 3492 space_seg_t *ss; | |
| 3493 uint64_t mintxg, maxtxg; | |
| 3494 vdev_t *rvd = spa->spa_root_vdev; | |
| 3495 | |
| 4808 | 3496 ASSERT(MUTEX_HELD(&spa_namespace_lock)); |
| 3497 ASSERT(!spa_config_held(spa, RW_WRITER)); | |
| 3498 | |
| 789 | 3499 if ((uint_t)type >= POOL_SCRUB_TYPES) |
| 3500 return (ENOTSUP); | |
| 3501 | |
| 1544 | 3502 mutex_enter(&spa->spa_scrub_lock); |
| 3503 | |
| 789 | 3504 /* |
| 3505 * If there's a scrub or resilver already in progress, stop it. | |
| 3506 */ | |
| 3507 while (spa->spa_scrub_thread != NULL) { | |
| 3508 /* | |
| 3509 * Don't stop a resilver unless forced. | |
| 3510 */ | |
| 1544 | 3511 if (spa->spa_scrub_type == POOL_SCRUB_RESILVER && !force) { |
| 3512 mutex_exit(&spa->spa_scrub_lock); | |
| 789 | 3513 return (EBUSY); |
| 1544 | 3514 } |
| 789 | 3515 spa->spa_scrub_stop = 1; |
| 3516 cv_broadcast(&spa->spa_scrub_cv); | |
| 3517 cv_wait(&spa->spa_scrub_cv, &spa->spa_scrub_lock); | |
| 3518 } | |
| 3519 | |
| 3520 /* | |
| 3521 * Terminate the previous traverse. | |
| 3522 */ | |
| 3523 if (spa->spa_scrub_th != NULL) { | |
| 3524 traverse_fini(spa->spa_scrub_th); | |
| 3525 spa->spa_scrub_th = NULL; | |
| 3526 } | |
| 3527 | |
| 1544 | 3528 if (rvd == NULL) { |
| 3529 ASSERT(spa->spa_scrub_stop == 0); | |
| 3530 ASSERT(spa->spa_scrub_type == type); | |
| 3531 ASSERT(spa->spa_scrub_restart_txg == 0); | |
| 3532 mutex_exit(&spa->spa_scrub_lock); | |
| 3533 return (0); | |
| 3534 } | |
| 789 | 3535 |
| 3536 mintxg = TXG_INITIAL - 1; | |
| 3537 maxtxg = spa_last_synced_txg(spa) + 1; | |
| 3538 | |
| 1544 | 3539 mutex_enter(&rvd->vdev_dtl_lock); |
| 789 | 3540 |
| 1544 | 3541 if (rvd->vdev_dtl_map.sm_space == 0) { |
| 3542 /* | |
| 3543 * The pool-wide DTL is empty. | |
| 1732 | 3544 * If this is a resilver, there's nothing to do except |
| 3545 * check whether any in-progress replacements have completed. | |
| 1544 | 3546 */ |
| 1732 | 3547 if (type == POOL_SCRUB_RESILVER) { |
| 1544 | 3548 type = POOL_SCRUB_NONE; |
| 4451 | 3549 spa_async_request(spa, SPA_ASYNC_RESILVER_DONE); |
| 1732 | 3550 } |
| 1544 | 3551 } else { |
| 3552 /* | |
| 3553 * The pool-wide DTL is non-empty. | |
| 3554 * If this is a normal scrub, upgrade to a resilver instead. | |
| 3555 */ | |
| 3556 if (type == POOL_SCRUB_EVERYTHING) | |
| 3557 type = POOL_SCRUB_RESILVER; | |
| 3558 } | |
| 789 | 3559 |
| 1544 | 3560 if (type == POOL_SCRUB_RESILVER) { |
| 789 | 3561 /* |
| 3562 * Determine the resilvering boundaries. | |
| 3563 * | |
| 3564 * Note: (mintxg, maxtxg) is an open interval, | |
| 3565 * i.e. mintxg and maxtxg themselves are not included. | |
| 3566 * | |
| 3567 * Note: for maxtxg, we MIN with spa_last_synced_txg(spa) + 1 | |
| 3568 * so we don't claim to resilver a txg that's still changing. | |
| 3569 */ | |
| 3570 ss = avl_first(&rvd->vdev_dtl_map.sm_root); | |
| 1544 | 3571 mintxg = ss->ss_start - 1; |
| 789 | 3572 ss = avl_last(&rvd->vdev_dtl_map.sm_root); |
| 1544 | 3573 maxtxg = MIN(ss->ss_end, maxtxg); |
| 4451 | 3574 |
| 3575 spa_event_notify(spa, NULL, ESC_ZFS_RESILVER_START); | |
| 789 | 3576 } |
| 3577 | |
| 1544 | 3578 mutex_exit(&rvd->vdev_dtl_lock); |
| 3579 | |
| 3580 spa->spa_scrub_stop = 0; | |
| 3581 spa->spa_scrub_type = type; | |
| 3582 spa->spa_scrub_restart_txg = 0; | |
| 3583 | |
| 3584 if (type != POOL_SCRUB_NONE) { | |
| 3585 spa->spa_scrub_mintxg = mintxg; | |
| 789 | 3586 spa->spa_scrub_maxtxg = maxtxg; |
| 3587 spa->spa_scrub_th = traverse_init(spa, spa_scrub_cb, NULL, | |
|
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3588 ADVANCE_PRE | ADVANCE_PRUNE | ADVANCE_ZIL, |
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3589 ZIO_FLAG_CANFAIL); |
| 789 | 3590 traverse_add_pool(spa->spa_scrub_th, mintxg, maxtxg); |
| 3591 spa->spa_scrub_thread = thread_create(NULL, 0, | |
| 3592 spa_scrub_thread, spa, 0, &p0, TS_RUN, minclsyspri); | |
| 3593 } | |
| 3594 | |
| 1544 | 3595 mutex_exit(&spa->spa_scrub_lock); |
| 3596 | |
| 789 | 3597 return (0); |
| 3598 } | |
| 3599 | |
| 1544 | 3600 /* |
| 3601 * ========================================================================== | |
| 3602 * SPA async task processing | |
| 3603 * ========================================================================== | |
| 3604 */ | |
| 3605 | |
| 3606 static void | |
| 4451 | 3607 spa_async_remove(spa_t *spa, vdev_t *vd) |
| 789 | 3608 { |
| 1544 | 3609 vdev_t *tvd; |
| 3610 int c; | |
| 3611 | |
| 4451 | 3612 for (c = 0; c < vd->vdev_children; c++) { |
| 3613 tvd = vd->vdev_child[c]; | |
| 3614 if (tvd->vdev_remove_wanted) { | |
| 3615 tvd->vdev_remove_wanted = 0; | |
| 3616 vdev_set_state(tvd, B_FALSE, VDEV_STATE_REMOVED, | |
| 3617 VDEV_AUX_NONE); | |
| 5329 | 3618 vdev_clear(spa, tvd, B_TRUE); |
| 4451 | 3619 vdev_config_dirty(tvd->vdev_top); |
| 1544 | 3620 } |
| 4451 | 3621 spa_async_remove(spa, tvd); |
| 1544 | 3622 } |
| 3623 } | |
| 3624 | |
| 3625 static void | |
| 3626 spa_async_thread(spa_t *spa) | |
| 3627 { | |
| 3628 int tasks; | |
| 4451 | 3629 uint64_t txg; |
| 1544 | 3630 |
| 3631 ASSERT(spa->spa_sync_on); | |
| 789 | 3632 |
| 1544 | 3633 mutex_enter(&spa->spa_async_lock); |
| 3634 tasks = spa->spa_async_tasks; | |
| 3635 spa->spa_async_tasks = 0; | |
| 3636 mutex_exit(&spa->spa_async_lock); | |
| 3637 | |
| 3638 /* | |
|
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3639 * See if the config needs to be updated. |
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3640 */ |
|
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3641 if (tasks & SPA_ASYNC_CONFIG_UPDATE) { |
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3642 mutex_enter(&spa_namespace_lock); |
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3643 spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); |
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3644 mutex_exit(&spa_namespace_lock); |
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3645 } |
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3646 |
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3647 /* |
| 4451 | 3648 * See if any devices need to be marked REMOVED. |
| 5329 | 3649 * |
| 3650 * XXX - We avoid doing this when we are in | |
| 3651 * I/O failure state since spa_vdev_enter() grabs | |
| 3652 * the namespace lock and would not be able to obtain | |
| 3653 * the writer config lock. | |
| 1544 | 3654 */ |
| 5329 | 3655 if (tasks & SPA_ASYNC_REMOVE && |
| 3656 spa_state(spa) != POOL_STATE_IO_FAILURE) { | |
| 4451 | 3657 txg = spa_vdev_enter(spa); |
| 3658 spa_async_remove(spa, spa->spa_root_vdev); | |
| 3659 (void) spa_vdev_exit(spa, NULL, txg, 0); | |
| 3660 } | |
| 1544 | 3661 |
| 3662 /* | |
| 3663 * If any devices are done replacing, detach them. | |
| 3664 */ | |
| 4451 | 3665 if (tasks & SPA_ASYNC_RESILVER_DONE) |
| 3666 spa_vdev_resilver_done(spa); | |
| 789 | 3667 |
| 1544 | 3668 /* |
| 4451 | 3669 * Kick off a scrub. When starting a RESILVER scrub (or an EVERYTHING |
| 3670 * scrub which can become a resilver), we need to hold | |
| 3671 * spa_namespace_lock() because the sysevent we post via | |
| 3672 * spa_event_notify() needs to get the name of the pool. | |
| 1544 | 3673 */ |
| 4451 | 3674 if (tasks & SPA_ASYNC_SCRUB) { |
| 3675 mutex_enter(&spa_namespace_lock); | |
| 1544 | 3676 VERIFY(spa_scrub(spa, POOL_SCRUB_EVERYTHING, B_TRUE) == 0); |
| 4451 | 3677 mutex_exit(&spa_namespace_lock); |
| 3678 } | |
| 1544 | 3679 |
| 3680 /* | |
| 3681 * Kick off a resilver. | |
| 3682 */ | |
| 4451 | 3683 if (tasks & SPA_ASYNC_RESILVER) { |
| 3684 mutex_enter(&spa_namespace_lock); | |
| 1544 | 3685 VERIFY(spa_scrub(spa, POOL_SCRUB_RESILVER, B_TRUE) == 0); |
| 4451 | 3686 mutex_exit(&spa_namespace_lock); |
| 3687 } | |
| 1544 | 3688 |
| 3689 /* | |
| 3690 * Let the world know that we're done. | |
| 3691 */ | |
| 3692 mutex_enter(&spa->spa_async_lock); | |
| 3693 spa->spa_async_thread = NULL; | |
| 3694 cv_broadcast(&spa->spa_async_cv); | |
| 3695 mutex_exit(&spa->spa_async_lock); | |
| 3696 thread_exit(); | |
| 3697 } | |
| 3698 | |
| 3699 void | |
| 3700 spa_async_suspend(spa_t *spa) | |
| 3701 { | |
| 3702 mutex_enter(&spa->spa_async_lock); | |
| 3703 spa->spa_async_suspended++; | |
| 3704 while (spa->spa_async_thread != NULL) | |
| 3705 cv_wait(&spa->spa_async_cv, &spa->spa_async_lock); | |
| 3706 mutex_exit(&spa->spa_async_lock); | |
| 3707 } | |
| 3708 | |
| 3709 void | |
| 3710 spa_async_resume(spa_t *spa) | |
| 3711 { | |
| 3712 mutex_enter(&spa->spa_async_lock); | |
| 3713 ASSERT(spa->spa_async_suspended != 0); | |
| 3714 spa->spa_async_suspended--; | |
| 3715 mutex_exit(&spa->spa_async_lock); | |
| 3716 } | |
| 3717 | |
| 3718 static void | |
| 3719 spa_async_dispatch(spa_t *spa) | |
| 3720 { | |
| 3721 mutex_enter(&spa->spa_async_lock); | |
| 3722 if (spa->spa_async_tasks && !spa->spa_async_suspended && | |
|
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3723 spa->spa_async_thread == NULL && |
|
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3724 rootdir != NULL && !vn_is_readonly(rootdir)) |
| 1544 | 3725 spa->spa_async_thread = thread_create(NULL, 0, |
| 3726 spa_async_thread, spa, 0, &p0, TS_RUN, maxclsyspri); | |
| 3727 mutex_exit(&spa->spa_async_lock); | |
| 3728 } | |
| 3729 | |
| 3730 void | |
| 3731 spa_async_request(spa_t *spa, int task) | |
| 3732 { | |
| 3733 mutex_enter(&spa->spa_async_lock); | |
| 3734 spa->spa_async_tasks |= task; | |
| 3735 mutex_exit(&spa->spa_async_lock); | |
| 789 | 3736 } |
| 3737 | |
| 3738 /* | |
| 3739 * ========================================================================== | |
| 3740 * SPA syncing routines | |
| 3741 * ========================================================================== | |
| 3742 */ | |
| 3743 | |
| 3744 static void | |
| 3745 spa_sync_deferred_frees(spa_t *spa, uint64_t txg) | |
| 3746 { | |
| 3747 bplist_t *bpl = &spa->spa_sync_bplist; | |
| 3748 dmu_tx_t *tx; | |
| 3749 blkptr_t blk; | |
| 3750 uint64_t itor = 0; | |
| 3751 zio_t *zio; | |
| 3752 int error; | |
| 3753 uint8_t c = 1; | |
| 3754 | |
| 3755 zio = zio_root(spa, NULL, NULL, ZIO_FLAG_CONFIG_HELD); | |
| 3756 | |
| 3757 while (bplist_iterate(bpl, &itor, &blk) == 0) | |
| 3758 zio_nowait(zio_free(zio, spa, txg, &blk, NULL, NULL)); | |
| 3759 | |
| 3760 error = zio_wait(zio); | |
| 3761 ASSERT3U(error, ==, 0); | |
| 3762 | |
| 3763 tx = dmu_tx_create_assigned(spa->spa_dsl_pool, txg); | |
| 3764 bplist_vacate(bpl, tx); | |
| 3765 | |
| 3766 /* | |
| 3767 * Pre-dirty the first block so we sync to convergence faster. | |
| 3768 * (Usually only the first block is needed.) | |
| 3769 */ | |
| 3770 dmu_write(spa->spa_meta_objset, spa->spa_sync_bplist_obj, 0, 1, &c, tx); | |
| 3771 dmu_tx_commit(tx); | |
| 3772 } | |
| 3773 | |
| 3774 static void | |
| 2082 | 3775 spa_sync_nvlist(spa_t *spa, uint64_t obj, nvlist_t *nv, dmu_tx_t *tx) |
| 3776 { | |
| 3777 char *packed = NULL; | |
| 3778 size_t nvsize = 0; | |
| 3779 dmu_buf_t *db; | |
| 3780 | |
| 3781 VERIFY(nvlist_size(nv, &nvsize, NV_ENCODE_XDR) == 0); | |
| 3782 | |
| 3783 packed = kmem_alloc(nvsize, KM_SLEEP); | |
| 3784 | |
| 3785 VERIFY(nvlist_pack(nv, &packed, &nvsize, NV_ENCODE_XDR, | |
| 3786 KM_SLEEP) == 0); | |
| 3787 | |
| 3788 dmu_write(spa->spa_meta_objset, obj, 0, nvsize, packed, tx); | |
| 3789 | |
| 3790 kmem_free(packed, nvsize); | |
| 3791 | |
| 3792 VERIFY(0 == dmu_bonus_hold(spa->spa_meta_objset, obj, FTAG, &db)); | |
| 3793 dmu_buf_will_dirty(db, tx); | |
| 3794 *(uint64_t *)db->db_data = nvsize; | |
| 3795 dmu_buf_rele(db, FTAG); | |
| 3796 } | |
| 3797 | |
| 3798 static void | |
| 5450 | 3799 spa_sync_aux_dev(spa_t *spa, spa_aux_vdev_t *sav, dmu_tx_t *tx, |
| 3800 const char *config, const char *entry) | |
| 2082 | 3801 { |
| 3802 nvlist_t *nvroot; | |
| 5450 | 3803 nvlist_t **list; |
| 2082 | 3804 int i; |
| 3805 | |
| 5450 | 3806 if (!sav->sav_sync) |
| 2082 | 3807 return; |
| 3808 | |
| 3809 /* | |
| 5450 | 3810 * Update the MOS nvlist describing the list of available devices. |
| 3811 * spa_validate_aux() will have already made sure this nvlist is | |
| 4451 | 3812 * valid and the vdevs are labeled appropriately. |
| 2082 | 3813 */ |
| 5450 | 3814 if (sav->sav_object == 0) { |
| 3815 sav->sav_object = dmu_object_alloc(spa->spa_meta_objset, | |
| 3816 DMU_OT_PACKED_NVLIST, 1 << 14, DMU_OT_PACKED_NVLIST_SIZE, | |
| 3817 sizeof (uint64_t), tx); | |
| 2082 | 3818 VERIFY(zap_update(spa->spa_meta_objset, |
| 5450 | 3819 DMU_POOL_DIRECTORY_OBJECT, entry, sizeof (uint64_t), 1, |
| 3820 &sav->sav_object, tx) == 0); | |
| 2082 | 3821 } |
| 3822 | |
| 3823 VERIFY(nvlist_alloc(&nvroot, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
| 5450 | 3824 if (sav->sav_count == 0) { |
| 3825 VERIFY(nvlist_add_nvlist_array(nvroot, config, NULL, 0) == 0); | |
| 2082 | 3826 } else { |
| 5450 | 3827 list = kmem_alloc(sav->sav_count * sizeof (void *), KM_SLEEP); |
| 3828 for (i = 0; i < sav->sav_count; i++) | |
| 3829 list[i] = vdev_config_generate(spa, sav->sav_vdevs[i], | |
| 3830 B_FALSE, B_FALSE, B_TRUE); | |
| 3831 VERIFY(nvlist_add_nvlist_array(nvroot, config, list, | |
| 3832 sav->sav_count) == 0); | |
| 3833 for (i = 0; i < sav->sav_count; i++) | |
| 3834 nvlist_free(list[i]); | |
| 3835 kmem_free(list, sav->sav_count * sizeof (void *)); | |
| 2082 | 3836 } |
| 3837 | |
| 5450 | 3838 spa_sync_nvlist(spa, sav->sav_object, nvroot, tx); |
| 2926 | 3839 nvlist_free(nvroot); |
| 2082 | 3840 |
| 5450 | 3841 sav->sav_sync = B_FALSE; |
| 2082 | 3842 } |
| 3843 | |
| 3844 static void | |
| 789 | 3845 spa_sync_config_object(spa_t *spa, dmu_tx_t *tx) |
| 3846 { | |
| 3847 nvlist_t *config; | |
| 3848 | |
| 3849 if (list_is_empty(&spa->spa_dirty_list)) | |
| 3850 return; | |
| 3851 | |
| 3852 config = spa_config_generate(spa, NULL, dmu_tx_get_txg(tx), B_FALSE); | |
| 3853 | |
|
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3854 if (spa->spa_config_syncing) |
|
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|
3855 nvlist_free(spa->spa_config_syncing); |
|
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|
3856 spa->spa_config_syncing = config; |
| 789 | 3857 |
| 2082 | 3858 spa_sync_nvlist(spa, spa->spa_config_object, config, tx); |
| 789 | 3859 } |
| 3860 | |
| 5094 | 3861 /* |
| 3862 * Set zpool properties. | |
| 3863 */ | |
| 3912 | 3864 static void |
| 4543 | 3865 spa_sync_props(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) |
| 3912 | 3866 { |
| 3867 spa_t *spa = arg1; | |
| 5094 | 3868 objset_t *mos = spa->spa_meta_objset; |
| 3912 | 3869 nvlist_t *nvp = arg2; |
| 5094 | 3870 nvpair_t *elem; |
| 4451 | 3871 uint64_t intval; |
| 5363 | 3872 char *strval, *slash; |
| 5094 | 3873 zpool_prop_t prop; |
| 3874 const char *propname; | |
| 3875 zprop_type_t proptype; | |
| 3876 | |
| 3877 elem = NULL; | |
| 3878 while ((elem = nvlist_next_nvpair(nvp, elem))) { | |
| 3879 switch (prop = zpool_name_to_prop(nvpair_name(elem))) { | |
| 3880 case ZPOOL_PROP_VERSION: | |
| 3881 /* | |
| 3882 * Only set version for non-zpool-creation cases | |
| 3883 * (set/import). spa_create() needs special care | |
| 3884 * for version setting. | |
| 3885 */ | |
| 3886 if (tx->tx_txg != TXG_INITIAL) { | |
| 3887 VERIFY(nvpair_value_uint64(elem, | |
| 3888 &intval) == 0); | |
| 3889 ASSERT(intval <= SPA_VERSION); | |
| 3890 ASSERT(intval >= spa_version(spa)); | |
| 3891 spa->spa_uberblock.ub_version = intval; | |
| 3892 vdev_config_dirty(spa->spa_root_vdev); | |
| 3893 } | |
| 3894 break; | |
| 3895 | |
| 3896 case ZPOOL_PROP_ALTROOT: | |
| 3897 /* | |
| 3898 * 'altroot' is a non-persistent property. It should | |
| 3899 * have been set temporarily at creation or import time. | |
| 3900 */ | |
| 3901 ASSERT(spa->spa_root != NULL); | |
| 3902 break; | |
| 3903 | |
| 5363 | 3904 case ZPOOL_PROP_CACHEFILE: |
| 5094 | 3905 /* |
| 5363 | 3906 * 'cachefile' is a non-persistent property, but note |
| 3907 * an async request that the config cache needs to be | |
| 3908 * udpated. | |
| 5094 | 3909 */ |
| 5363 | 3910 VERIFY(nvpair_value_string(elem, &strval) == 0); |
| 3911 if (spa->spa_config_dir) | |
| 3912 spa_strfree(spa->spa_config_dir); | |
| 3913 if (spa->spa_config_file) | |
| 3914 spa_strfree(spa->spa_config_file); | |
| 3915 | |
| 3916 if (strval[0] == '\0') { | |
| 3917 spa->spa_config_dir = NULL; | |
| 3918 spa->spa_config_file = NULL; | |
| 3919 } else if (strcmp(strval, "none") == 0) { | |
| 3920 spa->spa_config_dir = spa_strdup(strval); | |
| 3921 spa->spa_config_file = NULL; | |
| 3922 } else { | |
|
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3923 /* |
|
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3924 * If the cachefile is in the root directory, |
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3925 * we will end up with an empty string for |
|
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|
3926 * spa_config_dir. This value is only ever |
|
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3927 * used when concatenated with '/', so an empty |
|
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|
3928 * string still behaves correctly and keeps the |
|
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|
3929 * rest of the code simple. |
|
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|
3930 */ |
| 5363 | 3931 slash = strrchr(strval, '/'); |
| 3932 ASSERT(slash != NULL); | |
| 3933 *slash = '\0'; | |
|
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3934 if (strcmp(strval, spa_config_dir) == 0 && |
|
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3935 strcmp(slash + 1, ZPOOL_CACHE_FILE) == 0) { |
|
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3936 spa->spa_config_dir = NULL; |
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3937 spa->spa_config_file = NULL; |
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|
3938 } else { |
|
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|
3939 spa->spa_config_dir = |
|
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|
3940 spa_strdup(strval); |
|
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|
3941 spa->spa_config_file = |
|
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|
3942 spa_strdup(slash + 1); |
|
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|
3943 } |
| 5363 | 3944 } |
| 3945 spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE); | |
| 4543 | 3946 break; |
| 5094 | 3947 default: |
| 3948 /* | |
| 3949 * Set pool property values in the poolprops mos object. | |
| 3950 */ | |
| 3951 mutex_enter(&spa->spa_props_lock); | |
| 3952 if (spa->spa_pool_props_object == 0) { | |
| 3953 objset_t *mos = spa->spa_meta_objset; | |
| 3954 | |
| 3955 VERIFY((spa->spa_pool_props_object = | |
| 3956 zap_create(mos, DMU_OT_POOL_PROPS, | |
| 3957 DMU_OT_NONE, 0, tx)) > 0); | |
| 3958 | |
| 3959 VERIFY(zap_update(mos, | |
| 3960 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_PROPS, | |
| 3961 8, 1, &spa->spa_pool_props_object, tx) | |
| 3962 == 0); | |
| 3963 } | |
| 3964 mutex_exit(&spa->spa_props_lock); | |
| 3965 | |
| 3966 /* normalize the property name */ | |
| 3967 propname = zpool_prop_to_name(prop); | |
| 3968 proptype = zpool_prop_get_type(prop); | |
| 3969 | |
| 3970 if (nvpair_type(elem) == DATA_TYPE_STRING) { | |
| 3971 ASSERT(proptype == PROP_TYPE_STRING); | |
| 3972 VERIFY(nvpair_value_string(elem, &strval) == 0); | |
| 3973 VERIFY(zap_update(mos, | |
| 3974 spa->spa_pool_props_object, propname, | |
| 3975 1, strlen(strval) + 1, strval, tx) == 0); | |
| 3976 | |
| 3977 } else if (nvpair_type(elem) == DATA_TYPE_UINT64) { | |
| 3978 VERIFY(nvpair_value_uint64(elem, &intval) == 0); | |
| 3979 | |
| 3980 if (proptype == PROP_TYPE_INDEX) { | |
| 3981 const char *unused; | |
| 3982 VERIFY(zpool_prop_index_to_string( | |
| 3983 prop, intval, &unused) == 0); | |
| 3984 } | |
| 3985 VERIFY(zap_update(mos, | |
| 3986 spa->spa_pool_props_object, propname, | |
| 3987 8, 1, &intval, tx) == 0); | |
| 3988 } else { | |
| 3989 ASSERT(0); /* not allowed */ | |
| 3990 } | |
| 3991 | |
| 5329 | 3992 switch (prop) { |
| 3993 case ZPOOL_PROP_DELEGATION: | |
| 5094 | 3994 spa->spa_delegation = intval; |
| 5329 | 3995 break; |
| 3996 case ZPOOL_PROP_BOOTFS: | |
| 5094 | 3997 spa->spa_bootfs = intval; |
| 5329 | 3998 break; |
| 3999 case ZPOOL_PROP_FAILUREMODE: | |
| 4000 spa->spa_failmode = intval; | |
| 4001 break; | |
| 4002 default: | |
| 4003 break; | |
| 4004 } | |
| 3912 | 4005 } |
| 5094 | 4006 |
| 4007 /* log internal history if this is not a zpool create */ | |
| 4008 if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY && | |
| 4009 tx->tx_txg != TXG_INITIAL) { | |
| 4010 spa_history_internal_log(LOG_POOL_PROPSET, | |
| 4011 spa, tx, cr, "%s %lld %s", | |
| 4012 nvpair_name(elem), intval, spa->spa_name); | |
| 4013 } | |
| 3912 | 4014 } |
| 4015 } | |
| 4016 | |
| 789 | 4017 /* |
| 4018 * Sync the specified transaction group. New blocks may be dirtied as | |
| 4019 * part of the process, so we iterate until it converges. | |
| 4020 */ | |
| 4021 void | |
| 4022 spa_sync(spa_t *spa, uint64_t txg) | |
| 4023 { | |
| 4024 dsl_pool_t *dp = spa->spa_dsl_pool; | |
| 4025 objset_t *mos = spa->spa_meta_objset; | |
| 4026 bplist_t *bpl = &spa->spa_sync_bplist; | |
|
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4027 vdev_t *rvd = spa->spa_root_vdev; |
| 789 | 4028 vdev_t *vd; |
|
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4029 vdev_t *svd[SPA_DVAS_PER_BP]; |
|
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4030 int svdcount = 0; |
| 789 | 4031 dmu_tx_t *tx; |
| 4032 int dirty_vdevs; | |
| 4033 | |
| 4034 /* | |
| 4035 * Lock out configuration changes. | |
| 4036 */ | |
| 1544 | 4037 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 4038 |
| 4039 spa->spa_syncing_txg = txg; | |
| 4040 spa->spa_sync_pass = 0; | |
| 4041 | |
| 1544 | 4042 VERIFY(0 == bplist_open(bpl, mos, spa->spa_sync_bplist_obj)); |
| 789 | 4043 |
| 2082 | 4044 tx = dmu_tx_create_assigned(dp, txg); |
| 4045 | |
| 4046 /* | |
| 4577 | 4047 * If we are upgrading to SPA_VERSION_RAIDZ_DEFLATE this txg, |
| 2082 | 4048 * set spa_deflate if we have no raid-z vdevs. |
| 4049 */ | |
| 4577 | 4050 if (spa->spa_ubsync.ub_version < SPA_VERSION_RAIDZ_DEFLATE && |
| 4051 spa->spa_uberblock.ub_version >= SPA_VERSION_RAIDZ_DEFLATE) { | |
| 2082 | 4052 int i; |
| 4053 | |
| 4054 for (i = 0; i < rvd->vdev_children; i++) { | |
| 4055 vd = rvd->vdev_child[i]; | |
| 4056 if (vd->vdev_deflate_ratio != SPA_MINBLOCKSIZE) | |
| 4057 break; | |
| 4058 } | |
| 4059 if (i == rvd->vdev_children) { | |
| 4060 spa->spa_deflate = TRUE; | |
| 4061 VERIFY(0 == zap_add(spa->spa_meta_objset, | |
| 4062 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
| 4063 sizeof (uint64_t), 1, &spa->spa_deflate, tx)); | |
| 4064 } | |
| 4065 } | |
| 4066 | |
| 789 | 4067 /* |
| 4068 * If anything has changed in this txg, push the deferred frees | |
| 4069 * from the previous txg. If not, leave them alone so that we | |
| 4070 * don't generate work on an otherwise idle system. | |
| 4071 */ | |
| 4072 if (!txg_list_empty(&dp->dp_dirty_datasets, txg) || | |
|
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4073 !txg_list_empty(&dp->dp_dirty_dirs, txg) || |
|
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|
4074 !txg_list_empty(&dp->dp_sync_tasks, txg)) |
| 789 | 4075 spa_sync_deferred_frees(spa, txg); |
| 4076 | |
| 4077 /* | |
| 4078 * Iterate to convergence. | |
| 4079 */ | |
| 4080 do { | |
| 4081 spa->spa_sync_pass++; | |
| 4082 | |
| 4083 spa_sync_config_object(spa, tx); | |
| 5450 | 4084 spa_sync_aux_dev(spa, &spa->spa_spares, tx, |
| 4085 ZPOOL_CONFIG_SPARES, DMU_POOL_SPARES); | |
| 4086 spa_sync_aux_dev(spa, &spa->spa_l2cache, tx, | |
| 4087 ZPOOL_CONFIG_L2CACHE, DMU_POOL_L2CACHE); | |
| 1544 | 4088 spa_errlog_sync(spa, txg); |
| 789 | 4089 dsl_pool_sync(dp, txg); |
| 4090 | |
| 4091 dirty_vdevs = 0; | |
| 4092 while (vd = txg_list_remove(&spa->spa_vdev_txg_list, txg)) { | |
| 4093 vdev_sync(vd, txg); | |
| 4094 dirty_vdevs++; | |
| 4095 } | |
| 4096 | |
| 4097 bplist_sync(bpl, tx); | |
| 4098 } while (dirty_vdevs); | |
| 4099 | |
| 4100 bplist_close(bpl); | |
| 4101 | |
| 4102 dprintf("txg %llu passes %d\n", txg, spa->spa_sync_pass); | |
| 4103 | |
| 4104 /* | |
| 4105 * Rewrite the vdev configuration (which includes the uberblock) | |
| 4106 * to commit the transaction group. | |
|
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4107 * |
|
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4108 * If there are no dirty vdevs, we sync the uberblock to a few |
|
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changeset
|
4109 * random top-level vdevs that are known to be visible in the |
|
c0b02c8fd2c0
6640580 spa_get_random() is insanely slow in userland
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diff
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|
4110 * config cache (see spa_vdev_add() for details). If there *are* |
|
c0b02c8fd2c0
6640580 spa_get_random() is insanely slow in userland
bonwick
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5621
diff
changeset
|
4111 * dirty vdevs -- or if the sync to our random subset fails -- |
|
c0b02c8fd2c0
6640580 spa_get_random() is insanely slow in userland
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diff
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|
4112 * then sync the uberblock to all vdevs. |
| 789 | 4113 */ |
|
5688
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6640580 spa_get_random() is insanely slow in userland
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diff
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|
4114 if (list_is_empty(&spa->spa_dirty_list)) { |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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diff
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|
4115 int children = rvd->vdev_children; |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
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diff
changeset
|
4116 int c0 = spa_get_random(children); |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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diff
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|
4117 int c; |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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diff
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|
4118 |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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diff
changeset
|
4119 for (c = 0; c < children; c++) { |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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diff
changeset
|
4120 vd = rvd->vdev_child[(c0 + c) % children]; |
|
5688
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6640580 spa_get_random() is insanely slow in userland
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diff
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|
4121 if (vd->vdev_ms_array == 0 || vd->vdev_islog) |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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diff
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|
4122 continue; |
|
5688
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6640580 spa_get_random() is insanely slow in userland
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diff
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|
4123 svd[svdcount++] = vd; |
|
c0b02c8fd2c0
6640580 spa_get_random() is insanely slow in userland
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diff
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|
4124 if (svdcount == SPA_DVAS_PER_BP) |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
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diff
changeset
|
4125 break; |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
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1601
diff
changeset
|
4126 } |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
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diff
changeset
|
4127 } |
|
5688
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6640580 spa_get_random() is insanely slow in userland
bonwick
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5621
diff
changeset
|
4128 if (svdcount == 0 || vdev_config_sync(svd, svdcount, txg) != 0) |
|
c0b02c8fd2c0
6640580 spa_get_random() is insanely slow in userland
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diff
changeset
|
4129 VERIFY3U(vdev_config_sync(rvd->vdev_child, |
|
c0b02c8fd2c0
6640580 spa_get_random() is insanely slow in userland
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diff
changeset
|
4130 rvd->vdev_children, txg), ==, 0); |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
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diff
changeset
|
4131 |
| 2082 | 4132 dmu_tx_commit(tx); |
| 4133 | |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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|
4134 /* |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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1601
diff
changeset
|
4135 * Clear the dirty config list. |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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changeset
|
4136 */ |
|
0ab1193d47cb
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changeset
|
4137 while ((vd = list_head(&spa->spa_dirty_list)) != NULL) |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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diff
changeset
|
4138 vdev_config_clean(vd); |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
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diff
changeset
|
4139 |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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diff
changeset
|
4140 /* |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
4141 * Now that the new config has synced transactionally, |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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1601
diff
changeset
|
4142 * let it become visible to the config cache. |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
4143 */ |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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parents:
1601
diff
changeset
|
4144 if (spa->spa_config_syncing != NULL) { |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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parents:
1601
diff
changeset
|
4145 spa_config_set(spa, spa->spa_config_syncing); |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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parents:
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diff
changeset
|
4146 spa->spa_config_txg = txg; |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
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diff
changeset
|
4147 spa->spa_config_syncing = NULL; |
|
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6398664 zpool detach: missing argument to error message causes core dump
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1601
diff
changeset
|
4148 } |
| 789 | 4149 |
| 4150 /* | |
| 4151 * Make a stable copy of the fully synced uberblock. | |
| 4152 * We use this as the root for pool traversals. | |
| 4153 */ | |
| 4154 spa->spa_traverse_wanted = 1; /* tells traverse_more() to stop */ | |
| 4155 | |
| 4156 spa_scrub_suspend(spa); /* stop scrubbing and finish I/Os */ | |
| 4157 | |
| 4158 rw_enter(&spa->spa_traverse_lock, RW_WRITER); | |
| 4159 spa->spa_traverse_wanted = 0; | |
| 4160 spa->spa_ubsync = spa->spa_uberblock; | |
| 4161 rw_exit(&spa->spa_traverse_lock); | |
| 4162 | |
| 4163 spa_scrub_resume(spa); /* resume scrub with new ubsync */ | |
| 4164 | |
| 4165 /* | |
| 4166 * Clean up the ZIL records for the synced txg. | |
| 4167 */ | |
| 4168 dsl_pool_zil_clean(dp); | |
| 4169 | |
| 4170 /* | |
| 4171 * Update usable space statistics. | |
| 4172 */ | |
| 4173 while (vd = txg_list_remove(&spa->spa_vdev_txg_list, TXG_CLEAN(txg))) | |
| 4174 vdev_sync_done(vd, txg); | |
| 4175 | |
| 4176 /* | |
| 4177 * It had better be the case that we didn't dirty anything | |
| 2082 | 4178 * since vdev_config_sync(). |
| 789 | 4179 */ |
| 4180 ASSERT(txg_list_empty(&dp->dp_dirty_datasets, txg)); | |
| 4181 ASSERT(txg_list_empty(&dp->dp_dirty_dirs, txg)); | |
| 4182 ASSERT(txg_list_empty(&spa->spa_vdev_txg_list, txg)); | |
| 4183 ASSERT(bpl->bpl_queue == NULL); | |
| 4184 | |
| 1544 | 4185 spa_config_exit(spa, FTAG); |
| 4186 | |
| 4187 /* | |
| 4188 * If any async tasks have been requested, kick them off. | |
| 4189 */ | |
| 4190 spa_async_dispatch(spa); | |
| 789 | 4191 } |
| 4192 | |
| 4193 /* | |
| 4194 * Sync all pools. We don't want to hold the namespace lock across these | |
| 4195 * operations, so we take a reference on the spa_t and drop the lock during the | |
| 4196 * sync. | |
| 4197 */ | |
| 4198 void | |
| 4199 spa_sync_allpools(void) | |
| 4200 { | |
| 4201 spa_t *spa = NULL; | |
| 4202 mutex_enter(&spa_namespace_lock); | |
| 4203 while ((spa = spa_next(spa)) != NULL) { | |
| 4204 if (spa_state(spa) != POOL_STATE_ACTIVE) | |
| 4205 continue; | |
| 4206 spa_open_ref(spa, FTAG); | |
| 4207 mutex_exit(&spa_namespace_lock); | |
| 4208 txg_wait_synced(spa_get_dsl(spa), 0); | |
| 4209 mutex_enter(&spa_namespace_lock); | |
| 4210 spa_close(spa, FTAG); | |
| 4211 } | |
| 4212 mutex_exit(&spa_namespace_lock); | |
| 4213 } | |
| 4214 | |
| 4215 /* | |
| 4216 * ========================================================================== | |
| 4217 * Miscellaneous routines | |
| 4218 * ========================================================================== | |
| 4219 */ | |
| 4220 | |
| 4221 /* | |
| 4222 * Remove all pools in the system. | |
| 4223 */ | |
| 4224 void | |
| 4225 spa_evict_all(void) | |
| 4226 { | |
| 4227 spa_t *spa; | |
| 4228 | |
| 4229 /* | |
| 4230 * Remove all cached state. All pools should be closed now, | |
| 4231 * so every spa in the AVL tree should be unreferenced. | |
| 4232 */ | |
| 4233 mutex_enter(&spa_namespace_lock); | |
| 4234 while ((spa = spa_next(NULL)) != NULL) { | |
| 4235 /* | |
| 1544 | 4236 * Stop async tasks. The async thread may need to detach |
| 4237 * a device that's been replaced, which requires grabbing | |
| 4238 * spa_namespace_lock, so we must drop it here. | |
| 789 | 4239 */ |
| 4240 spa_open_ref(spa, FTAG); | |
| 4241 mutex_exit(&spa_namespace_lock); | |
| 1544 | 4242 spa_async_suspend(spa); |
| 4808 | 4243 mutex_enter(&spa_namespace_lock); |
| 789 | 4244 VERIFY(spa_scrub(spa, POOL_SCRUB_NONE, B_TRUE) == 0); |
| 4245 spa_close(spa, FTAG); | |
| 4246 | |
| 4247 if (spa->spa_state != POOL_STATE_UNINITIALIZED) { | |
| 4248 spa_unload(spa); | |
| 4249 spa_deactivate(spa); | |
| 4250 } | |
| 4251 spa_remove(spa); | |
| 4252 } | |
| 4253 mutex_exit(&spa_namespace_lock); | |
| 4254 } | |
| 1544 | 4255 |
| 4256 vdev_t * | |
| 4257 spa_lookup_by_guid(spa_t *spa, uint64_t guid) | |
| 4258 { | |
| 4259 return (vdev_lookup_by_guid(spa->spa_root_vdev, guid)); | |
| 4260 } | |
| 1760 | 4261 |
| 4262 void | |
| 5094 | 4263 spa_upgrade(spa_t *spa, uint64_t version) |
| 1760 | 4264 { |
| 4265 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 4266 | |
| 4267 /* | |
| 4268 * This should only be called for a non-faulted pool, and since a | |
| 4269 * future version would result in an unopenable pool, this shouldn't be | |
| 4270 * possible. | |
| 4271 */ | |
| 4577 | 4272 ASSERT(spa->spa_uberblock.ub_version <= SPA_VERSION); |
| 5094 | 4273 ASSERT(version >= spa->spa_uberblock.ub_version); |
| 4274 | |
| 4275 spa->spa_uberblock.ub_version = version; | |
| 1760 | 4276 vdev_config_dirty(spa->spa_root_vdev); |
| 4277 | |
| 4278 spa_config_exit(spa, FTAG); | |
| 2082 | 4279 |
| 4280 txg_wait_synced(spa_get_dsl(spa), 0); | |
| 1760 | 4281 } |
| 2082 | 4282 |
| 4283 boolean_t | |
| 4284 spa_has_spare(spa_t *spa, uint64_t guid) | |
| 4285 { | |
| 4286 int i; | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
4287 uint64_t spareguid; |
| 5450 | 4288 spa_aux_vdev_t *sav = &spa->spa_spares; |
| 4289 | |
| 4290 for (i = 0; i < sav->sav_count; i++) | |
| 4291 if (sav->sav_vdevs[i]->vdev_guid == guid) | |
| 2082 | 4292 return (B_TRUE); |
| 4293 | |
| 5450 | 4294 for (i = 0; i < sav->sav_npending; i++) { |
| 4295 if (nvlist_lookup_uint64(sav->sav_pending[i], ZPOOL_CONFIG_GUID, | |
| 4296 &spareguid) == 0 && spareguid == guid) | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
4297 return (B_TRUE); |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
4298 } |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
4299 |
| 2082 | 4300 return (B_FALSE); |
| 4301 } | |
| 3912 | 4302 |
| 4451 | 4303 /* |
| 4304 * Post a sysevent corresponding to the given event. The 'name' must be one of | |
| 4305 * the event definitions in sys/sysevent/eventdefs.h. The payload will be | |
| 4306 * filled in from the spa and (optionally) the vdev. This doesn't do anything | |
| 4307 * in the userland libzpool, as we don't want consumers to misinterpret ztest | |
| 4308 * or zdb as real changes. | |
| 4309 */ | |
| 4310 void | |
| 4311 spa_event_notify(spa_t *spa, vdev_t *vd, const char *name) | |
| 4312 { | |
| 4313 #ifdef _KERNEL | |
| 4314 sysevent_t *ev; | |
| 4315 sysevent_attr_list_t *attr = NULL; | |
| 4316 sysevent_value_t value; | |
| 4317 sysevent_id_t eid; | |
| 4318 | |
| 4319 ev = sysevent_alloc(EC_ZFS, (char *)name, SUNW_KERN_PUB "zfs", | |
| 4320 SE_SLEEP); | |
| 4321 | |
| 4322 value.value_type = SE_DATA_TYPE_STRING; | |
| 4323 value.value.sv_string = spa_name(spa); | |
| 4324 if (sysevent_add_attr(&attr, ZFS_EV_POOL_NAME, &value, SE_SLEEP) != 0) | |
| 4325 goto done; | |
| 4326 | |
| 4327 value.value_type = SE_DATA_TYPE_UINT64; | |
| 4328 value.value.sv_uint64 = spa_guid(spa); | |
| 4329 if (sysevent_add_attr(&attr, ZFS_EV_POOL_GUID, &value, SE_SLEEP) != 0) | |
| 4330 goto done; | |
| 4331 | |
| 4332 if (vd) { | |
| 4333 value.value_type = SE_DATA_TYPE_UINT64; | |
| 4334 value.value.sv_uint64 = vd->vdev_guid; | |
| 4335 if (sysevent_add_attr(&attr, ZFS_EV_VDEV_GUID, &value, | |
| 4336 SE_SLEEP) != 0) | |
| 4337 goto done; | |
| 4338 | |
| 4339 if (vd->vdev_path) { | |
| 4340 value.value_type = SE_DATA_TYPE_STRING; | |
| 4341 value.value.sv_string = vd->vdev_path; | |
| 4342 if (sysevent_add_attr(&attr, ZFS_EV_VDEV_PATH, | |
| 4343 &value, SE_SLEEP) != 0) | |
| 4344 goto done; | |
| 4345 } | |
| 4346 } | |
| 4347 | |
|
5756
05eb4c1ff492
6585441 spa_event_notify() doesn't pass its attributes
eschrock
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5688
diff
changeset
|
4348 if (sysevent_attach_attributes(ev, attr) != 0) |
|
05eb4c1ff492
6585441 spa_event_notify() doesn't pass its attributes
eschrock
parents:
5688
diff
changeset
|
4349 goto done; |
|
05eb4c1ff492
6585441 spa_event_notify() doesn't pass its attributes
eschrock
parents:
5688
diff
changeset
|
4350 attr = NULL; |
|
05eb4c1ff492
6585441 spa_event_notify() doesn't pass its attributes
eschrock
parents:
5688
diff
changeset
|
4351 |
| 4451 | 4352 (void) log_sysevent(ev, SE_SLEEP, &eid); |
| 4353 | |
| 4354 done: | |
| 4355 if (attr) | |
| 4356 sysevent_free_attr(attr); | |
| 4357 sysevent_free(ev); | |
| 4358 #endif | |
| 4359 } |