Mercurial > illumos > illumos-gate
annotate usr/src/uts/common/fs/zfs/spa.c @ 7214:04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
| author | lling |
|---|---|
| date | Tue, 29 Jul 2008 10:34:44 -0700 |
| parents | 9508660f9c27 |
| children | c9c31ef4c960 |
| 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> |
| 6423 | 63 #include <sys/spa_boot.h> |
| 789 | 64 |
| 5094 | 65 #include "zfs_prop.h" |
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66 #include "zfs_comutil.h" |
| 5094 | 67 |
| 2986 | 68 int zio_taskq_threads = 8; |
| 69 | |
| 5094 | 70 static void spa_sync_props(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx); |
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71 static boolean_t spa_has_active_shared_spare(spa_t *spa); |
| 5094 | 72 |
| 73 /* | |
| 74 * ========================================================================== | |
| 75 * SPA properties routines | |
| 76 * ========================================================================== | |
| 77 */ | |
| 78 | |
| 79 /* | |
| 80 * Add a (source=src, propname=propval) list to an nvlist. | |
| 81 */ | |
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82 static void |
| 5094 | 83 spa_prop_add_list(nvlist_t *nvl, zpool_prop_t prop, char *strval, |
| 84 uint64_t intval, zprop_source_t src) | |
| 85 { | |
| 86 const char *propname = zpool_prop_to_name(prop); | |
| 87 nvlist_t *propval; | |
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88 |
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89 VERIFY(nvlist_alloc(&propval, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
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90 VERIFY(nvlist_add_uint64(propval, ZPROP_SOURCE, src) == 0); |
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91 |
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92 if (strval != NULL) |
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93 VERIFY(nvlist_add_string(propval, ZPROP_VALUE, strval) == 0); |
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94 else |
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95 VERIFY(nvlist_add_uint64(propval, ZPROP_VALUE, intval) == 0); |
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96 |
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97 VERIFY(nvlist_add_nvlist(nvl, propname, propval) == 0); |
| 5094 | 98 nvlist_free(propval); |
| 99 } | |
| 100 | |
| 101 /* | |
| 102 * Get property values from the spa configuration. | |
| 103 */ | |
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104 static void |
| 5094 | 105 spa_prop_get_config(spa_t *spa, nvlist_t **nvp) |
| 106 { | |
| 107 uint64_t size = spa_get_space(spa); | |
| 108 uint64_t used = spa_get_alloc(spa); | |
| 109 uint64_t cap, version; | |
| 110 zprop_source_t src = ZPROP_SRC_NONE; | |
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111 spa_config_dirent_t *dp; |
| 5094 | 112 |
| 113 /* | |
| 114 * readonly properties | |
| 115 */ | |
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116 spa_prop_add_list(*nvp, ZPOOL_PROP_NAME, spa->spa_name, 0, src); |
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117 spa_prop_add_list(*nvp, ZPOOL_PROP_SIZE, NULL, size, src); |
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118 spa_prop_add_list(*nvp, ZPOOL_PROP_USED, NULL, used, src); |
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119 spa_prop_add_list(*nvp, ZPOOL_PROP_AVAILABLE, NULL, size - used, src); |
| 5094 | 120 |
| 121 cap = (size == 0) ? 0 : (used * 100 / size); | |
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122 spa_prop_add_list(*nvp, ZPOOL_PROP_CAPACITY, NULL, cap, src); |
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123 |
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124 spa_prop_add_list(*nvp, ZPOOL_PROP_GUID, NULL, spa_guid(spa), src); |
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125 spa_prop_add_list(*nvp, ZPOOL_PROP_HEALTH, NULL, |
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126 spa->spa_root_vdev->vdev_state, src); |
| 5094 | 127 |
| 128 /* | |
| 129 * settable properties that are not stored in the pool property object. | |
| 130 */ | |
| 131 version = spa_version(spa); | |
| 132 if (version == zpool_prop_default_numeric(ZPOOL_PROP_VERSION)) | |
| 133 src = ZPROP_SRC_DEFAULT; | |
| 134 else | |
| 135 src = ZPROP_SRC_LOCAL; | |
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136 spa_prop_add_list(*nvp, ZPOOL_PROP_VERSION, NULL, version, src); |
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137 |
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138 if (spa->spa_root != NULL) |
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139 spa_prop_add_list(*nvp, ZPOOL_PROP_ALTROOT, spa->spa_root, |
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140 0, ZPROP_SRC_LOCAL); |
| 5094 | 141 |
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142 if ((dp = list_head(&spa->spa_config_list)) != NULL) { |
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143 if (dp->scd_path == NULL) { |
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144 spa_prop_add_list(*nvp, ZPOOL_PROP_CACHEFILE, |
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145 "none", 0, ZPROP_SRC_LOCAL); |
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146 } else if (strcmp(dp->scd_path, spa_config_path) != 0) { |
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147 spa_prop_add_list(*nvp, ZPOOL_PROP_CACHEFILE, |
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148 dp->scd_path, 0, ZPROP_SRC_LOCAL); |
| 5363 | 149 } |
| 150 } | |
| 5094 | 151 } |
| 152 | |
| 153 /* | |
| 154 * Get zpool property values. | |
| 155 */ | |
| 156 int | |
| 157 spa_prop_get(spa_t *spa, nvlist_t **nvp) | |
| 158 { | |
| 159 zap_cursor_t zc; | |
| 160 zap_attribute_t za; | |
| 161 objset_t *mos = spa->spa_meta_objset; | |
| 162 int err; | |
| 163 | |
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164 VERIFY(nvlist_alloc(nvp, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
| 5094 | 165 |
| 166 /* | |
| 167 * Get properties from the spa config. | |
| 168 */ | |
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169 spa_prop_get_config(spa, nvp); |
| 5094 | 170 |
| 171 mutex_enter(&spa->spa_props_lock); | |
| 172 /* If no pool property object, no more prop to get. */ | |
| 173 if (spa->spa_pool_props_object == 0) { | |
| 174 mutex_exit(&spa->spa_props_lock); | |
| 175 return (0); | |
| 176 } | |
| 177 | |
| 178 /* | |
| 179 * Get properties from the MOS pool property object. | |
| 180 */ | |
| 181 for (zap_cursor_init(&zc, mos, spa->spa_pool_props_object); | |
| 182 (err = zap_cursor_retrieve(&zc, &za)) == 0; | |
| 183 zap_cursor_advance(&zc)) { | |
| 184 uint64_t intval = 0; | |
| 185 char *strval = NULL; | |
| 186 zprop_source_t src = ZPROP_SRC_DEFAULT; | |
| 187 zpool_prop_t prop; | |
| 188 | |
| 189 if ((prop = zpool_name_to_prop(za.za_name)) == ZPROP_INVAL) | |
| 190 continue; | |
| 191 | |
| 192 switch (za.za_integer_length) { | |
| 193 case 8: | |
| 194 /* integer property */ | |
| 195 if (za.za_first_integer != | |
| 196 zpool_prop_default_numeric(prop)) | |
| 197 src = ZPROP_SRC_LOCAL; | |
| 198 | |
| 199 if (prop == ZPOOL_PROP_BOOTFS) { | |
| 200 dsl_pool_t *dp; | |
| 201 dsl_dataset_t *ds = NULL; | |
| 202 | |
| 203 dp = spa_get_dsl(spa); | |
| 204 rw_enter(&dp->dp_config_rwlock, RW_READER); | |
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205 if (err = dsl_dataset_hold_obj(dp, |
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206 za.za_first_integer, FTAG, &ds)) { |
| 5094 | 207 rw_exit(&dp->dp_config_rwlock); |
| 208 break; | |
| 209 } | |
| 210 | |
| 211 strval = kmem_alloc( | |
| 212 MAXNAMELEN + strlen(MOS_DIR_NAME) + 1, | |
| 213 KM_SLEEP); | |
| 214 dsl_dataset_name(ds, strval); | |
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215 dsl_dataset_rele(ds, FTAG); |
| 5094 | 216 rw_exit(&dp->dp_config_rwlock); |
| 217 } else { | |
| 218 strval = NULL; | |
| 219 intval = za.za_first_integer; | |
| 220 } | |
| 221 | |
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222 spa_prop_add_list(*nvp, prop, strval, intval, src); |
| 5094 | 223 |
| 224 if (strval != NULL) | |
| 225 kmem_free(strval, | |
| 226 MAXNAMELEN + strlen(MOS_DIR_NAME) + 1); | |
| 227 | |
| 228 break; | |
| 229 | |
| 230 case 1: | |
| 231 /* string property */ | |
| 232 strval = kmem_alloc(za.za_num_integers, KM_SLEEP); | |
| 233 err = zap_lookup(mos, spa->spa_pool_props_object, | |
| 234 za.za_name, 1, za.za_num_integers, strval); | |
| 235 if (err) { | |
| 236 kmem_free(strval, za.za_num_integers); | |
| 237 break; | |
| 238 } | |
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239 spa_prop_add_list(*nvp, prop, strval, 0, src); |
| 5094 | 240 kmem_free(strval, za.za_num_integers); |
| 241 break; | |
| 242 | |
| 243 default: | |
| 244 break; | |
| 245 } | |
| 246 } | |
| 247 zap_cursor_fini(&zc); | |
| 248 mutex_exit(&spa->spa_props_lock); | |
| 249 out: | |
| 250 if (err && err != ENOENT) { | |
| 251 nvlist_free(*nvp); | |
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252 *nvp = NULL; |
| 5094 | 253 return (err); |
| 254 } | |
| 255 | |
| 256 return (0); | |
| 257 } | |
| 258 | |
| 259 /* | |
| 260 * Validate the given pool properties nvlist and modify the list | |
| 261 * for the property values to be set. | |
| 262 */ | |
| 263 static int | |
| 264 spa_prop_validate(spa_t *spa, nvlist_t *props) | |
| 265 { | |
| 266 nvpair_t *elem; | |
| 267 int error = 0, reset_bootfs = 0; | |
| 268 uint64_t objnum; | |
| 269 | |
| 270 elem = NULL; | |
| 271 while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { | |
| 272 zpool_prop_t prop; | |
| 273 char *propname, *strval; | |
| 274 uint64_t intval; | |
| 275 objset_t *os; | |
| 5363 | 276 char *slash; |
| 5094 | 277 |
| 278 propname = nvpair_name(elem); | |
| 279 | |
| 280 if ((prop = zpool_name_to_prop(propname)) == ZPROP_INVAL) | |
| 281 return (EINVAL); | |
| 282 | |
| 283 switch (prop) { | |
| 284 case ZPOOL_PROP_VERSION: | |
| 285 error = nvpair_value_uint64(elem, &intval); | |
| 286 if (!error && | |
| 287 (intval < spa_version(spa) || intval > SPA_VERSION)) | |
| 288 error = EINVAL; | |
| 289 break; | |
| 290 | |
| 291 case ZPOOL_PROP_DELEGATION: | |
| 292 case ZPOOL_PROP_AUTOREPLACE: | |
| 293 error = nvpair_value_uint64(elem, &intval); | |
| 294 if (!error && intval > 1) | |
| 295 error = EINVAL; | |
| 296 break; | |
| 297 | |
| 298 case ZPOOL_PROP_BOOTFS: | |
| 299 if (spa_version(spa) < SPA_VERSION_BOOTFS) { | |
| 300 error = ENOTSUP; | |
| 301 break; | |
| 302 } | |
| 303 | |
| 304 /* | |
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305 * Make sure the vdev config is bootable |
| 5094 | 306 */ |
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307 if (!vdev_is_bootable(spa->spa_root_vdev)) { |
| 5094 | 308 error = ENOTSUP; |
| 309 break; | |
| 310 } | |
| 311 | |
| 312 reset_bootfs = 1; | |
| 313 | |
| 314 error = nvpair_value_string(elem, &strval); | |
| 315 | |
| 316 if (!error) { | |
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317 uint64_t compress; |
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318 |
| 5094 | 319 if (strval == NULL || strval[0] == '\0') { |
| 320 objnum = zpool_prop_default_numeric( | |
| 321 ZPOOL_PROP_BOOTFS); | |
| 322 break; | |
| 323 } | |
| 324 | |
| 325 if (error = dmu_objset_open(strval, DMU_OST_ZFS, | |
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326 DS_MODE_USER | DS_MODE_READONLY, &os)) |
| 5094 | 327 break; |
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328 |
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329 /* We don't support gzip bootable datasets */ |
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330 if ((error = dsl_prop_get_integer(strval, |
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331 zfs_prop_to_name(ZFS_PROP_COMPRESSION), |
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332 &compress, NULL)) == 0 && |
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333 !BOOTFS_COMPRESS_VALID(compress)) { |
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334 error = ENOTSUP; |
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335 } else { |
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336 objnum = dmu_objset_id(os); |
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337 } |
| 5094 | 338 dmu_objset_close(os); |
| 339 } | |
| 340 break; | |
| 5329 | 341 case ZPOOL_PROP_FAILUREMODE: |
| 342 error = nvpair_value_uint64(elem, &intval); | |
| 343 if (!error && (intval < ZIO_FAILURE_MODE_WAIT || | |
| 344 intval > ZIO_FAILURE_MODE_PANIC)) | |
| 345 error = EINVAL; | |
| 346 | |
| 347 /* | |
| 348 * This is a special case which only occurs when | |
| 349 * the pool has completely failed. This allows | |
| 350 * the user to change the in-core failmode property | |
| 351 * without syncing it out to disk (I/Os might | |
| 352 * currently be blocked). We do this by returning | |
| 353 * EIO to the caller (spa_prop_set) to trick it | |
| 354 * into thinking we encountered a property validation | |
| 355 * error. | |
| 356 */ | |
| 357 if (!error && spa_state(spa) == POOL_STATE_IO_FAILURE) { | |
| 358 spa->spa_failmode = intval; | |
| 359 error = EIO; | |
| 360 } | |
| 361 break; | |
| 5363 | 362 |
| 363 case ZPOOL_PROP_CACHEFILE: | |
| 364 if ((error = nvpair_value_string(elem, &strval)) != 0) | |
| 365 break; | |
| 366 | |
| 367 if (strval[0] == '\0') | |
| 368 break; | |
| 369 | |
| 370 if (strcmp(strval, "none") == 0) | |
| 371 break; | |
| 372 | |
| 373 if (strval[0] != '/') { | |
| 374 error = EINVAL; | |
| 375 break; | |
| 376 } | |
| 377 | |
| 378 slash = strrchr(strval, '/'); | |
| 379 ASSERT(slash != NULL); | |
| 380 | |
| 381 if (slash[1] == '\0' || strcmp(slash, "/.") == 0 || | |
| 382 strcmp(slash, "/..") == 0) | |
| 383 error = EINVAL; | |
| 384 break; | |
| 5094 | 385 } |
| 386 | |
| 387 if (error) | |
| 388 break; | |
| 389 } | |
| 390 | |
| 391 if (!error && reset_bootfs) { | |
| 392 error = nvlist_remove(props, | |
| 393 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), DATA_TYPE_STRING); | |
| 394 | |
| 395 if (!error) { | |
| 396 error = nvlist_add_uint64(props, | |
| 397 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), objnum); | |
| 398 } | |
| 399 } | |
| 400 | |
| 401 return (error); | |
| 402 } | |
| 403 | |
| 404 int | |
| 405 spa_prop_set(spa_t *spa, nvlist_t *nvp) | |
| 406 { | |
| 407 int error; | |
| 408 | |
| 409 if ((error = spa_prop_validate(spa, nvp)) != 0) | |
| 410 return (error); | |
| 411 | |
| 412 return (dsl_sync_task_do(spa_get_dsl(spa), NULL, spa_sync_props, | |
| 413 spa, nvp, 3)); | |
| 414 } | |
| 415 | |
| 416 /* | |
| 417 * If the bootfs property value is dsobj, clear it. | |
| 418 */ | |
| 419 void | |
| 420 spa_prop_clear_bootfs(spa_t *spa, uint64_t dsobj, dmu_tx_t *tx) | |
| 421 { | |
| 422 if (spa->spa_bootfs == dsobj && spa->spa_pool_props_object != 0) { | |
| 423 VERIFY(zap_remove(spa->spa_meta_objset, | |
| 424 spa->spa_pool_props_object, | |
| 425 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), tx) == 0); | |
| 426 spa->spa_bootfs = 0; | |
| 427 } | |
| 428 } | |
| 429 | |
| 789 | 430 /* |
| 431 * ========================================================================== | |
| 432 * SPA state manipulation (open/create/destroy/import/export) | |
| 433 * ========================================================================== | |
| 434 */ | |
| 435 | |
| 1544 | 436 static int |
| 437 spa_error_entry_compare(const void *a, const void *b) | |
| 438 { | |
| 439 spa_error_entry_t *sa = (spa_error_entry_t *)a; | |
| 440 spa_error_entry_t *sb = (spa_error_entry_t *)b; | |
| 441 int ret; | |
| 442 | |
| 443 ret = bcmp(&sa->se_bookmark, &sb->se_bookmark, | |
| 444 sizeof (zbookmark_t)); | |
| 445 | |
| 446 if (ret < 0) | |
| 447 return (-1); | |
| 448 else if (ret > 0) | |
| 449 return (1); | |
| 450 else | |
| 451 return (0); | |
| 452 } | |
| 453 | |
| 454 /* | |
| 455 * Utility function which retrieves copies of the current logs and | |
| 456 * re-initializes them in the process. | |
| 457 */ | |
| 458 void | |
| 459 spa_get_errlists(spa_t *spa, avl_tree_t *last, avl_tree_t *scrub) | |
| 460 { | |
| 461 ASSERT(MUTEX_HELD(&spa->spa_errlist_lock)); | |
| 462 | |
| 463 bcopy(&spa->spa_errlist_last, last, sizeof (avl_tree_t)); | |
| 464 bcopy(&spa->spa_errlist_scrub, scrub, sizeof (avl_tree_t)); | |
| 465 | |
| 466 avl_create(&spa->spa_errlist_scrub, | |
| 467 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
| 468 offsetof(spa_error_entry_t, se_avl)); | |
| 469 avl_create(&spa->spa_errlist_last, | |
| 470 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
| 471 offsetof(spa_error_entry_t, se_avl)); | |
| 472 } | |
| 473 | |
| 789 | 474 /* |
| 475 * Activate an uninitialized pool. | |
| 476 */ | |
| 477 static void | |
| 478 spa_activate(spa_t *spa) | |
| 479 { | |
| 480 int t; | |
| 481 | |
| 482 ASSERT(spa->spa_state == POOL_STATE_UNINITIALIZED); | |
| 483 | |
| 484 spa->spa_state = POOL_STATE_ACTIVE; | |
| 485 | |
| 486 spa->spa_normal_class = metaslab_class_create(); | |
| 4527 | 487 spa->spa_log_class = metaslab_class_create(); |
| 789 | 488 |
| 489 for (t = 0; t < ZIO_TYPES; t++) { | |
| 490 spa->spa_zio_issue_taskq[t] = taskq_create("spa_zio_issue", | |
| 2986 | 491 zio_taskq_threads, maxclsyspri, 50, INT_MAX, |
| 789 | 492 TASKQ_PREPOPULATE); |
| 493 spa->spa_zio_intr_taskq[t] = taskq_create("spa_zio_intr", | |
| 2986 | 494 zio_taskq_threads, maxclsyspri, 50, INT_MAX, |
| 789 | 495 TASKQ_PREPOPULATE); |
| 496 } | |
| 497 | |
| 498 list_create(&spa->spa_dirty_list, sizeof (vdev_t), | |
| 499 offsetof(vdev_t, vdev_dirty_node)); | |
| 5329 | 500 list_create(&spa->spa_zio_list, sizeof (zio_t), |
| 501 offsetof(zio_t, zio_link_node)); | |
| 789 | 502 |
| 503 txg_list_create(&spa->spa_vdev_txg_list, | |
| 504 offsetof(struct vdev, vdev_txg_node)); | |
| 1544 | 505 |
| 506 avl_create(&spa->spa_errlist_scrub, | |
| 507 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
| 508 offsetof(spa_error_entry_t, se_avl)); | |
| 509 avl_create(&spa->spa_errlist_last, | |
| 510 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
| 511 offsetof(spa_error_entry_t, se_avl)); | |
| 789 | 512 } |
| 513 | |
| 514 /* | |
| 515 * Opposite of spa_activate(). | |
| 516 */ | |
| 517 static void | |
| 518 spa_deactivate(spa_t *spa) | |
| 519 { | |
| 520 int t; | |
| 521 | |
| 522 ASSERT(spa->spa_sync_on == B_FALSE); | |
| 523 ASSERT(spa->spa_dsl_pool == NULL); | |
| 524 ASSERT(spa->spa_root_vdev == NULL); | |
| 525 | |
| 526 ASSERT(spa->spa_state != POOL_STATE_UNINITIALIZED); | |
| 527 | |
| 528 txg_list_destroy(&spa->spa_vdev_txg_list); | |
| 529 | |
| 530 list_destroy(&spa->spa_dirty_list); | |
| 5329 | 531 list_destroy(&spa->spa_zio_list); |
| 789 | 532 |
| 533 for (t = 0; t < ZIO_TYPES; t++) { | |
| 534 taskq_destroy(spa->spa_zio_issue_taskq[t]); | |
| 535 taskq_destroy(spa->spa_zio_intr_taskq[t]); | |
| 536 spa->spa_zio_issue_taskq[t] = NULL; | |
| 537 spa->spa_zio_intr_taskq[t] = NULL; | |
| 538 } | |
| 539 | |
| 540 metaslab_class_destroy(spa->spa_normal_class); | |
| 541 spa->spa_normal_class = NULL; | |
| 542 | |
| 4527 | 543 metaslab_class_destroy(spa->spa_log_class); |
| 544 spa->spa_log_class = NULL; | |
| 545 | |
| 1544 | 546 /* |
| 547 * If this was part of an import or the open otherwise failed, we may | |
| 548 * still have errors left in the queues. Empty them just in case. | |
| 549 */ | |
| 550 spa_errlog_drain(spa); | |
| 551 | |
| 552 avl_destroy(&spa->spa_errlist_scrub); | |
| 553 avl_destroy(&spa->spa_errlist_last); | |
| 554 | |
| 789 | 555 spa->spa_state = POOL_STATE_UNINITIALIZED; |
| 556 } | |
| 557 | |
| 558 /* | |
| 559 * Verify a pool configuration, and construct the vdev tree appropriately. This | |
| 560 * will create all the necessary vdevs in the appropriate layout, with each vdev | |
| 561 * in the CLOSED state. This will prep the pool before open/creation/import. | |
| 562 * All vdev validation is done by the vdev_alloc() routine. | |
| 563 */ | |
| 2082 | 564 static int |
| 565 spa_config_parse(spa_t *spa, vdev_t **vdp, nvlist_t *nv, vdev_t *parent, | |
| 566 uint_t id, int atype) | |
| 789 | 567 { |
| 568 nvlist_t **child; | |
| 569 uint_t c, children; | |
| 2082 | 570 int error; |
| 571 | |
| 572 if ((error = vdev_alloc(spa, vdp, nv, parent, id, atype)) != 0) | |
| 573 return (error); | |
| 574 | |
| 575 if ((*vdp)->vdev_ops->vdev_op_leaf) | |
| 576 return (0); | |
| 789 | 577 |
| 578 if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, | |
| 579 &child, &children) != 0) { | |
| 2082 | 580 vdev_free(*vdp); |
| 581 *vdp = NULL; | |
| 582 return (EINVAL); | |
| 789 | 583 } |
| 584 | |
| 585 for (c = 0; c < children; c++) { | |
| 2082 | 586 vdev_t *vd; |
| 587 if ((error = spa_config_parse(spa, &vd, child[c], *vdp, c, | |
| 588 atype)) != 0) { | |
| 589 vdev_free(*vdp); | |
| 590 *vdp = NULL; | |
| 591 return (error); | |
| 789 | 592 } |
| 593 } | |
| 594 | |
| 2082 | 595 ASSERT(*vdp != NULL); |
| 596 | |
| 597 return (0); | |
| 789 | 598 } |
| 599 | |
| 600 /* | |
| 601 * Opposite of spa_load(). | |
| 602 */ | |
| 603 static void | |
| 604 spa_unload(spa_t *spa) | |
| 605 { | |
| 2082 | 606 int i; |
| 607 | |
| 789 | 608 /* |
| 1544 | 609 * Stop async tasks. |
| 610 */ | |
| 611 spa_async_suspend(spa); | |
| 612 | |
| 613 /* | |
| 789 | 614 * Stop syncing. |
| 615 */ | |
| 616 if (spa->spa_sync_on) { | |
| 617 txg_sync_stop(spa->spa_dsl_pool); | |
| 618 spa->spa_sync_on = B_FALSE; | |
| 619 } | |
| 620 | |
| 621 /* | |
| 622 * Wait for any outstanding prefetch I/O to complete. | |
| 623 */ | |
| 1544 | 624 spa_config_enter(spa, RW_WRITER, FTAG); |
| 625 spa_config_exit(spa, FTAG); | |
| 789 | 626 |
| 627 /* | |
| 5450 | 628 * Drop and purge level 2 cache |
| 629 */ | |
| 630 spa_l2cache_drop(spa); | |
| 631 | |
| 632 /* | |
| 789 | 633 * Close the dsl pool. |
| 634 */ | |
| 635 if (spa->spa_dsl_pool) { | |
| 636 dsl_pool_close(spa->spa_dsl_pool); | |
| 637 spa->spa_dsl_pool = NULL; | |
| 638 } | |
| 639 | |
| 640 /* | |
| 641 * Close all vdevs. | |
| 642 */ | |
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643 if (spa->spa_root_vdev) |
| 789 | 644 vdev_free(spa->spa_root_vdev); |
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645 ASSERT(spa->spa_root_vdev == NULL); |
| 1544 | 646 |
| 5450 | 647 for (i = 0; i < spa->spa_spares.sav_count; i++) |
| 648 vdev_free(spa->spa_spares.sav_vdevs[i]); | |
| 649 if (spa->spa_spares.sav_vdevs) { | |
| 650 kmem_free(spa->spa_spares.sav_vdevs, | |
| 651 spa->spa_spares.sav_count * sizeof (void *)); | |
| 652 spa->spa_spares.sav_vdevs = NULL; | |
| 653 } | |
| 654 if (spa->spa_spares.sav_config) { | |
| 655 nvlist_free(spa->spa_spares.sav_config); | |
| 656 spa->spa_spares.sav_config = NULL; | |
| 2082 | 657 } |
| 5450 | 658 |
| 659 for (i = 0; i < spa->spa_l2cache.sav_count; i++) | |
| 660 vdev_free(spa->spa_l2cache.sav_vdevs[i]); | |
| 661 if (spa->spa_l2cache.sav_vdevs) { | |
| 662 kmem_free(spa->spa_l2cache.sav_vdevs, | |
| 663 spa->spa_l2cache.sav_count * sizeof (void *)); | |
| 664 spa->spa_l2cache.sav_vdevs = NULL; | |
| 665 } | |
| 666 if (spa->spa_l2cache.sav_config) { | |
| 667 nvlist_free(spa->spa_l2cache.sav_config); | |
| 668 spa->spa_l2cache.sav_config = NULL; | |
| 2082 | 669 } |
| 670 | |
| 1544 | 671 spa->spa_async_suspended = 0; |
| 789 | 672 } |
| 673 | |
| 674 /* | |
| 2082 | 675 * Load (or re-load) the current list of vdevs describing the active spares for |
| 676 * this pool. When this is called, we have some form of basic information in | |
| 5450 | 677 * 'spa_spares.sav_config'. We parse this into vdevs, try to open them, and |
| 678 * then re-generate a more complete list including status information. | |
| 2082 | 679 */ |
| 680 static void | |
| 681 spa_load_spares(spa_t *spa) | |
| 682 { | |
| 683 nvlist_t **spares; | |
| 684 uint_t nspares; | |
| 685 int i; | |
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686 vdev_t *vd, *tvd; |
| 2082 | 687 |
| 688 /* | |
| 689 * First, close and free any existing spare vdevs. | |
| 690 */ | |
| 5450 | 691 for (i = 0; i < spa->spa_spares.sav_count; i++) { |
| 692 vd = spa->spa_spares.sav_vdevs[i]; | |
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693 |
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694 /* Undo the call to spa_activate() below */ |
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695 if ((tvd = spa_lookup_by_guid(spa, vd->vdev_guid, |
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696 B_FALSE)) != NULL && tvd->vdev_isspare) |
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697 spa_spare_remove(tvd); |
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698 vdev_close(vd); |
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699 vdev_free(vd); |
| 2082 | 700 } |
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701 |
| 5450 | 702 if (spa->spa_spares.sav_vdevs) |
| 703 kmem_free(spa->spa_spares.sav_vdevs, | |
| 704 spa->spa_spares.sav_count * sizeof (void *)); | |
| 705 | |
| 706 if (spa->spa_spares.sav_config == NULL) | |
| 2082 | 707 nspares = 0; |
| 708 else | |
| 5450 | 709 VERIFY(nvlist_lookup_nvlist_array(spa->spa_spares.sav_config, |
| 2082 | 710 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); |
| 711 | |
| 5450 | 712 spa->spa_spares.sav_count = (int)nspares; |
| 713 spa->spa_spares.sav_vdevs = NULL; | |
| 2082 | 714 |
| 715 if (nspares == 0) | |
| 716 return; | |
| 717 | |
| 718 /* | |
| 719 * Construct the array of vdevs, opening them to get status in the | |
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720 * process. For each spare, there is potentially two different vdev_t |
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721 * structures associated with it: one in the list of spares (used only |
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722 * for basic validation purposes) and one in the active vdev |
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723 * configuration (if it's spared in). During this phase we open and |
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724 * validate each vdev on the spare list. If the vdev also exists in the |
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725 * active configuration, then we also mark this vdev as an active spare. |
| 2082 | 726 */ |
| 5450 | 727 spa->spa_spares.sav_vdevs = kmem_alloc(nspares * sizeof (void *), |
| 728 KM_SLEEP); | |
| 729 for (i = 0; i < spa->spa_spares.sav_count; i++) { | |
| 2082 | 730 VERIFY(spa_config_parse(spa, &vd, spares[i], NULL, 0, |
| 731 VDEV_ALLOC_SPARE) == 0); | |
| 732 ASSERT(vd != NULL); | |
| 733 | |
| 5450 | 734 spa->spa_spares.sav_vdevs[i] = vd; |
| 2082 | 735 |
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736 if ((tvd = spa_lookup_by_guid(spa, vd->vdev_guid, |
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737 B_FALSE)) != NULL) { |
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738 if (!tvd->vdev_isspare) |
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739 spa_spare_add(tvd); |
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740 |
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741 /* |
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742 * We only mark the spare active if we were successfully |
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743 * able to load the vdev. Otherwise, importing a pool |
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744 * with a bad active spare would result in strange |
|
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|
745 * behavior, because multiple pool would think the spare |
|
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|
746 * is actively in use. |
|
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747 * |
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748 * There is a vulnerability here to an equally bizarre |
|
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749 * circumstance, where a dead active spare is later |
|
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750 * brought back to life (onlined or otherwise). Given |
|
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751 * the rarity of this scenario, and the extra complexity |
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752 * it adds, we ignore the possibility. |
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753 */ |
|
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|
754 if (!vdev_is_dead(tvd)) |
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755 spa_spare_activate(tvd); |
|
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756 } |
|
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|
757 |
| 2082 | 758 if (vdev_open(vd) != 0) |
| 759 continue; | |
| 760 | |
| 761 vd->vdev_top = vd; | |
| 5450 | 762 if (vdev_validate_aux(vd) == 0) |
| 763 spa_spare_add(vd); | |
| 2082 | 764 } |
| 765 | |
| 766 /* | |
| 767 * Recompute the stashed list of spares, with status information | |
| 768 * this time. | |
| 769 */ | |
| 5450 | 770 VERIFY(nvlist_remove(spa->spa_spares.sav_config, ZPOOL_CONFIG_SPARES, |
| 2082 | 771 DATA_TYPE_NVLIST_ARRAY) == 0); |
| 772 | |
| 5450 | 773 spares = kmem_alloc(spa->spa_spares.sav_count * sizeof (void *), |
| 774 KM_SLEEP); | |
| 775 for (i = 0; i < spa->spa_spares.sav_count; i++) | |
| 776 spares[i] = vdev_config_generate(spa, | |
| 777 spa->spa_spares.sav_vdevs[i], B_TRUE, B_TRUE, B_FALSE); | |
| 778 VERIFY(nvlist_add_nvlist_array(spa->spa_spares.sav_config, | |
| 779 ZPOOL_CONFIG_SPARES, spares, spa->spa_spares.sav_count) == 0); | |
| 780 for (i = 0; i < spa->spa_spares.sav_count; i++) | |
| 2082 | 781 nvlist_free(spares[i]); |
| 5450 | 782 kmem_free(spares, spa->spa_spares.sav_count * sizeof (void *)); |
| 783 } | |
| 784 | |
| 785 /* | |
| 786 * Load (or re-load) the current list of vdevs describing the active l2cache for | |
| 787 * this pool. When this is called, we have some form of basic information in | |
| 788 * 'spa_l2cache.sav_config'. We parse this into vdevs, try to open them, and | |
| 789 * then re-generate a more complete list including status information. | |
| 790 * Devices which are already active have their details maintained, and are | |
| 791 * not re-opened. | |
| 792 */ | |
| 793 static void | |
| 794 spa_load_l2cache(spa_t *spa) | |
| 795 { | |
| 796 nvlist_t **l2cache; | |
| 797 uint_t nl2cache; | |
| 798 int i, j, oldnvdevs; | |
|
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|
799 uint64_t guid, size; |
| 5450 | 800 vdev_t *vd, **oldvdevs, **newvdevs; |
| 801 spa_aux_vdev_t *sav = &spa->spa_l2cache; | |
| 802 | |
| 803 if (sav->sav_config != NULL) { | |
| 804 VERIFY(nvlist_lookup_nvlist_array(sav->sav_config, | |
| 805 ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0); | |
| 806 newvdevs = kmem_alloc(nl2cache * sizeof (void *), KM_SLEEP); | |
| 807 } else { | |
| 808 nl2cache = 0; | |
| 809 } | |
| 810 | |
| 811 oldvdevs = sav->sav_vdevs; | |
| 812 oldnvdevs = sav->sav_count; | |
| 813 sav->sav_vdevs = NULL; | |
| 814 sav->sav_count = 0; | |
| 815 | |
| 816 /* | |
| 817 * Process new nvlist of vdevs. | |
| 818 */ | |
| 819 for (i = 0; i < nl2cache; i++) { | |
| 820 VERIFY(nvlist_lookup_uint64(l2cache[i], ZPOOL_CONFIG_GUID, | |
| 821 &guid) == 0); | |
| 822 | |
| 823 newvdevs[i] = NULL; | |
| 824 for (j = 0; j < oldnvdevs; j++) { | |
| 825 vd = oldvdevs[j]; | |
| 826 if (vd != NULL && guid == vd->vdev_guid) { | |
| 827 /* | |
| 828 * Retain previous vdev for add/remove ops. | |
| 829 */ | |
| 830 newvdevs[i] = vd; | |
| 831 oldvdevs[j] = NULL; | |
| 832 break; | |
| 833 } | |
| 834 } | |
| 835 | |
| 836 if (newvdevs[i] == NULL) { | |
| 837 /* | |
| 838 * Create new vdev | |
| 839 */ | |
| 840 VERIFY(spa_config_parse(spa, &vd, l2cache[i], NULL, 0, | |
| 841 VDEV_ALLOC_L2CACHE) == 0); | |
| 842 ASSERT(vd != NULL); | |
| 843 newvdevs[i] = vd; | |
| 844 | |
| 845 /* | |
| 846 * Commit this vdev as an l2cache device, | |
| 847 * even if it fails to open. | |
| 848 */ | |
| 849 spa_l2cache_add(vd); | |
| 850 | |
|
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|
851 vd->vdev_top = vd; |
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|
852 vd->vdev_aux = sav; |
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|
853 |
|
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|
854 spa_l2cache_activate(vd); |
|
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|
855 |
| 5450 | 856 if (vdev_open(vd) != 0) |
| 857 continue; | |
| 858 | |
| 859 (void) vdev_validate_aux(vd); | |
| 860 | |
| 861 if (!vdev_is_dead(vd)) { | |
| 862 size = vdev_get_rsize(vd); | |
|
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|
863 l2arc_add_vdev(spa, vd, |
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|
864 VDEV_LABEL_START_SIZE, |
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|
865 size - VDEV_LABEL_START_SIZE); |
| 5450 | 866 } |
| 867 } | |
| 868 } | |
| 869 | |
| 870 /* | |
| 871 * Purge vdevs that were dropped | |
| 872 */ | |
| 873 for (i = 0; i < oldnvdevs; i++) { | |
| 874 uint64_t pool; | |
| 875 | |
| 876 vd = oldvdevs[i]; | |
| 877 if (vd != NULL) { | |
| 878 if (spa_mode & FWRITE && | |
| 879 spa_l2cache_exists(vd->vdev_guid, &pool) && | |
|
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|
880 pool != 0ULL && |
|
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|
881 l2arc_vdev_present(vd)) { |
| 5450 | 882 l2arc_remove_vdev(vd); |
| 883 } | |
| 884 (void) vdev_close(vd); | |
| 885 spa_l2cache_remove(vd); | |
| 886 } | |
| 887 } | |
| 888 | |
| 889 if (oldvdevs) | |
| 890 kmem_free(oldvdevs, oldnvdevs * sizeof (void *)); | |
| 891 | |
| 892 if (sav->sav_config == NULL) | |
| 893 goto out; | |
| 894 | |
| 895 sav->sav_vdevs = newvdevs; | |
| 896 sav->sav_count = (int)nl2cache; | |
| 897 | |
| 898 /* | |
| 899 * Recompute the stashed list of l2cache devices, with status | |
| 900 * information this time. | |
| 901 */ | |
| 902 VERIFY(nvlist_remove(sav->sav_config, ZPOOL_CONFIG_L2CACHE, | |
| 903 DATA_TYPE_NVLIST_ARRAY) == 0); | |
| 904 | |
| 905 l2cache = kmem_alloc(sav->sav_count * sizeof (void *), KM_SLEEP); | |
| 906 for (i = 0; i < sav->sav_count; i++) | |
| 907 l2cache[i] = vdev_config_generate(spa, | |
| 908 sav->sav_vdevs[i], B_TRUE, B_FALSE, B_TRUE); | |
| 909 VERIFY(nvlist_add_nvlist_array(sav->sav_config, | |
| 910 ZPOOL_CONFIG_L2CACHE, l2cache, sav->sav_count) == 0); | |
| 911 out: | |
| 912 for (i = 0; i < sav->sav_count; i++) | |
| 913 nvlist_free(l2cache[i]); | |
| 914 if (sav->sav_count) | |
| 915 kmem_free(l2cache, sav->sav_count * sizeof (void *)); | |
| 2082 | 916 } |
| 917 | |
| 918 static int | |
| 919 load_nvlist(spa_t *spa, uint64_t obj, nvlist_t **value) | |
| 920 { | |
| 921 dmu_buf_t *db; | |
| 922 char *packed = NULL; | |
| 923 size_t nvsize = 0; | |
| 924 int error; | |
| 925 *value = NULL; | |
| 926 | |
| 927 VERIFY(0 == dmu_bonus_hold(spa->spa_meta_objset, obj, FTAG, &db)); | |
| 928 nvsize = *(uint64_t *)db->db_data; | |
| 929 dmu_buf_rele(db, FTAG); | |
| 930 | |
| 931 packed = kmem_alloc(nvsize, KM_SLEEP); | |
| 932 error = dmu_read(spa->spa_meta_objset, obj, 0, nvsize, packed); | |
| 933 if (error == 0) | |
| 934 error = nvlist_unpack(packed, nvsize, value, 0); | |
| 935 kmem_free(packed, nvsize); | |
| 936 | |
| 937 return (error); | |
| 938 } | |
| 939 | |
| 940 /* | |
| 4451 | 941 * Checks to see if the given vdev could not be opened, in which case we post a |
| 942 * sysevent to notify the autoreplace code that the device has been removed. | |
| 943 */ | |
| 944 static void | |
| 945 spa_check_removed(vdev_t *vd) | |
| 946 { | |
| 947 int c; | |
| 948 | |
| 949 for (c = 0; c < vd->vdev_children; c++) | |
| 950 spa_check_removed(vd->vdev_child[c]); | |
| 951 | |
| 952 if (vd->vdev_ops->vdev_op_leaf && vdev_is_dead(vd)) { | |
| 953 zfs_post_autoreplace(vd->vdev_spa, vd); | |
| 954 spa_event_notify(vd->vdev_spa, vd, ESC_ZFS_VDEV_CHECK); | |
| 955 } | |
| 956 } | |
| 957 | |
| 958 /* | |
| 789 | 959 * Load an existing storage pool, using the pool's builtin spa_config as a |
| 1544 | 960 * source of configuration information. |
| 789 | 961 */ |
| 962 static int | |
| 1544 | 963 spa_load(spa_t *spa, nvlist_t *config, spa_load_state_t state, int mosconfig) |
| 789 | 964 { |
| 965 int error = 0; | |
| 966 nvlist_t *nvroot = NULL; | |
| 967 vdev_t *rvd; | |
| 968 uberblock_t *ub = &spa->spa_uberblock; | |
|
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|
969 uint64_t config_cache_txg = spa->spa_config_txg; |
| 789 | 970 uint64_t pool_guid; |
| 2082 | 971 uint64_t version; |
| 789 | 972 zio_t *zio; |
| 4451 | 973 uint64_t autoreplace = 0; |
| 789 | 974 |
| 1544 | 975 spa->spa_load_state = state; |
|
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diff
changeset
|
976 |
| 789 | 977 if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvroot) || |
| 1733 | 978 nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &pool_guid)) { |
| 1544 | 979 error = EINVAL; |
| 980 goto out; | |
| 981 } | |
| 789 | 982 |
| 2082 | 983 /* |
| 984 * Versioning wasn't explicitly added to the label until later, so if | |
| 985 * it's not present treat it as the initial version. | |
| 986 */ | |
| 987 if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION, &version) != 0) | |
| 4577 | 988 version = SPA_VERSION_INITIAL; |
| 2082 | 989 |
| 1733 | 990 (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG, |
| 991 &spa->spa_config_txg); | |
| 992 | |
|
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diff
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|
993 if ((state == SPA_LOAD_IMPORT || state == SPA_LOAD_TRYIMPORT) && |
| 1544 | 994 spa_guid_exists(pool_guid, 0)) { |
| 995 error = EEXIST; | |
| 996 goto out; | |
| 997 } | |
| 789 | 998 |
|
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6433717 offline devices should not be marked persistently unavailble
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diff
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|
999 spa->spa_load_guid = pool_guid; |
|
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diff
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|
1000 |
| 789 | 1001 /* |
| 2082 | 1002 * Parse the configuration into a vdev tree. We explicitly set the |
| 1003 * value that will be returned by spa_version() since parsing the | |
| 1004 * configuration requires knowing the version number. | |
| 789 | 1005 */ |
| 1544 | 1006 spa_config_enter(spa, RW_WRITER, FTAG); |
| 2082 | 1007 spa->spa_ubsync.ub_version = version; |
| 1008 error = spa_config_parse(spa, &rvd, nvroot, NULL, 0, VDEV_ALLOC_LOAD); | |
| 1544 | 1009 spa_config_exit(spa, FTAG); |
| 789 | 1010 |
| 2082 | 1011 if (error != 0) |
| 1544 | 1012 goto out; |
| 789 | 1013 |
|
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|
1014 ASSERT(spa->spa_root_vdev == rvd); |
| 789 | 1015 ASSERT(spa_guid(spa) == pool_guid); |
| 1016 | |
| 1017 /* | |
| 1018 * Try to open all vdevs, loading each label in the process. | |
| 1019 */ | |
|
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1020 error = vdev_open(rvd); |
|
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diff
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|
1021 if (error != 0) |
| 1544 | 1022 goto out; |
| 789 | 1023 |
| 1024 /* | |
|
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1025 * Validate the labels for all leaf vdevs. We need to grab the config |
|
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1026 * lock because all label I/O is done with the ZIO_FLAG_CONFIG_HELD |
|
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diff
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|
1027 * flag. |
|
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|
1028 */ |
|
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|
1029 spa_config_enter(spa, RW_READER, FTAG); |
|
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diff
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|
1030 error = vdev_validate(rvd); |
|
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|
1031 spa_config_exit(spa, FTAG); |
|
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1032 |
|
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1033 if (error != 0) |
|
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1034 goto out; |
|
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|
1035 |
|
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1036 if (rvd->vdev_state <= VDEV_STATE_CANT_OPEN) { |
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1037 error = ENXIO; |
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1038 goto out; |
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|
1039 } |
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1040 |
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|
1041 /* |
| 789 | 1042 * Find the best uberblock. |
| 1043 */ | |
| 1044 bzero(ub, sizeof (uberblock_t)); | |
| 1045 | |
| 1046 zio = zio_root(spa, NULL, NULL, | |
| 1047 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE); | |
| 1048 vdev_uberblock_load(zio, rvd, ub); | |
| 1049 error = zio_wait(zio); | |
| 1050 | |
| 1051 /* | |
| 1052 * If we weren't able to find a single valid uberblock, return failure. | |
| 1053 */ | |
| 1054 if (ub->ub_txg == 0) { | |
| 1760 | 1055 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1056 VDEV_AUX_CORRUPT_DATA); | |
| 1544 | 1057 error = ENXIO; |
| 1058 goto out; | |
| 1059 } | |
| 1060 | |
| 1061 /* | |
| 1062 * If the pool is newer than the code, we can't open it. | |
| 1063 */ | |
| 4577 | 1064 if (ub->ub_version > SPA_VERSION) { |
| 1760 | 1065 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1066 VDEV_AUX_VERSION_NEWER); | |
| 1544 | 1067 error = ENOTSUP; |
| 1068 goto out; | |
| 789 | 1069 } |
| 1070 | |
| 1071 /* | |
| 1072 * If the vdev guid sum doesn't match the uberblock, we have an | |
| 1073 * incomplete configuration. | |
| 1074 */ | |
| 1732 | 1075 if (rvd->vdev_guid_sum != ub->ub_guid_sum && mosconfig) { |
| 1544 | 1076 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1077 VDEV_AUX_BAD_GUID_SUM); | |
| 1078 error = ENXIO; | |
| 1079 goto out; | |
| 789 | 1080 } |
| 1081 | |
| 1082 /* | |
| 1083 * Initialize internal SPA structures. | |
| 1084 */ | |
| 1085 spa->spa_state = POOL_STATE_ACTIVE; | |
| 1086 spa->spa_ubsync = spa->spa_uberblock; | |
| 1087 spa->spa_first_txg = spa_last_synced_txg(spa) + 1; | |
| 1544 | 1088 error = dsl_pool_open(spa, spa->spa_first_txg, &spa->spa_dsl_pool); |
| 1089 if (error) { | |
| 1090 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1091 VDEV_AUX_CORRUPT_DATA); | |
| 1092 goto out; | |
| 1093 } | |
| 789 | 1094 spa->spa_meta_objset = spa->spa_dsl_pool->dp_meta_objset; |
| 1095 | |
| 1544 | 1096 if (zap_lookup(spa->spa_meta_objset, |
| 789 | 1097 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CONFIG, |
| 1544 | 1098 sizeof (uint64_t), 1, &spa->spa_config_object) != 0) { |
| 1099 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1100 VDEV_AUX_CORRUPT_DATA); | |
| 1101 error = EIO; | |
| 1102 goto out; | |
| 1103 } | |
| 789 | 1104 |
| 1105 if (!mosconfig) { | |
| 2082 | 1106 nvlist_t *newconfig; |
|
3975
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|
1107 uint64_t hostid; |
| 2082 | 1108 |
| 1109 if (load_nvlist(spa, spa->spa_config_object, &newconfig) != 0) { | |
| 1544 | 1110 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1111 VDEV_AUX_CORRUPT_DATA); | |
| 1112 error = EIO; | |
| 1113 goto out; | |
| 1114 } | |
| 789 | 1115 |
|
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6282725 hostname/hostid should be stored in the label
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changeset
|
1116 if (nvlist_lookup_uint64(newconfig, ZPOOL_CONFIG_HOSTID, |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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diff
changeset
|
1117 &hostid) == 0) { |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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diff
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|
1118 char *hostname; |
|
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6282725 hostname/hostid should be stored in the label
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|
1119 unsigned long myhostid = 0; |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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diff
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|
1120 |
|
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|
1121 VERIFY(nvlist_lookup_string(newconfig, |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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|
1122 ZPOOL_CONFIG_HOSTNAME, &hostname) == 0); |
|
6674f5d79069
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|
1123 |
|
6674f5d79069
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diff
changeset
|
1124 (void) ddi_strtoul(hw_serial, NULL, 10, &myhostid); |
|
4178
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|
1125 if (hostid != 0 && myhostid != 0 && |
|
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|
1126 (unsigned long)hostid != myhostid) { |
|
3975
6674f5d79069
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changeset
|
1127 cmn_err(CE_WARN, "pool '%s' could not be " |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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diff
changeset
|
1128 "loaded as it was last accessed by " |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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|
1129 "another system (host: %s hostid: 0x%lx). " |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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|
1130 "See: http://www.sun.com/msg/ZFS-8000-EY", |
|
6674f5d79069
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|
1131 spa->spa_name, hostname, |
|
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6282725 hostname/hostid should be stored in the label
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|
1132 (unsigned long)hostid); |
|
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|
1133 error = EBADF; |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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|
1134 goto out; |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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diff
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|
1135 } |
|
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6282725 hostname/hostid should be stored in the label
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|
1136 } |
|
6674f5d79069
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|
1137 |
| 789 | 1138 spa_config_set(spa, newconfig); |
| 1139 spa_unload(spa); | |
| 1140 spa_deactivate(spa); | |
| 1141 spa_activate(spa); | |
| 1142 | |
| 1544 | 1143 return (spa_load(spa, newconfig, state, B_TRUE)); |
| 1144 } | |
| 1145 | |
| 1146 if (zap_lookup(spa->spa_meta_objset, | |
| 1147 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SYNC_BPLIST, | |
| 1148 sizeof (uint64_t), 1, &spa->spa_sync_bplist_obj) != 0) { | |
| 1149 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1150 VDEV_AUX_CORRUPT_DATA); | |
| 1151 error = EIO; | |
| 1152 goto out; | |
| 789 | 1153 } |
| 1154 | |
| 1544 | 1155 /* |
| 2082 | 1156 * Load the bit that tells us to use the new accounting function |
| 1157 * (raid-z deflation). If we have an older pool, this will not | |
| 1158 * be present. | |
| 1159 */ | |
| 1160 error = zap_lookup(spa->spa_meta_objset, | |
| 1161 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
| 1162 sizeof (uint64_t), 1, &spa->spa_deflate); | |
| 1163 if (error != 0 && error != ENOENT) { | |
| 1164 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1165 VDEV_AUX_CORRUPT_DATA); | |
| 1166 error = EIO; | |
| 1167 goto out; | |
| 1168 } | |
| 1169 | |
| 1170 /* | |
| 1544 | 1171 * Load the persistent error log. If we have an older pool, this will |
| 1172 * not be present. | |
| 1173 */ | |
| 1174 error = zap_lookup(spa->spa_meta_objset, | |
| 1175 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_ERRLOG_LAST, | |
| 1176 sizeof (uint64_t), 1, &spa->spa_errlog_last); | |
|
1807
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6410711 intent log blocks don't get invited to pool parties
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|
1177 if (error != 0 && error != ENOENT) { |
| 1544 | 1178 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1179 VDEV_AUX_CORRUPT_DATA); | |
| 1180 error = EIO; | |
| 1181 goto out; | |
| 1182 } | |
| 1183 | |
| 1184 error = zap_lookup(spa->spa_meta_objset, | |
| 1185 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_ERRLOG_SCRUB, | |
| 1186 sizeof (uint64_t), 1, &spa->spa_errlog_scrub); | |
| 1187 if (error != 0 && error != ENOENT) { | |
| 1188 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1189 VDEV_AUX_CORRUPT_DATA); | |
| 1190 error = EIO; | |
| 1191 goto out; | |
| 1192 } | |
| 789 | 1193 |
| 1194 /* | |
| 2926 | 1195 * Load the history object. If we have an older pool, this |
| 1196 * will not be present. | |
| 1197 */ | |
| 1198 error = zap_lookup(spa->spa_meta_objset, | |
| 1199 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_HISTORY, | |
| 1200 sizeof (uint64_t), 1, &spa->spa_history); | |
| 1201 if (error != 0 && error != ENOENT) { | |
| 1202 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1203 VDEV_AUX_CORRUPT_DATA); | |
| 1204 error = EIO; | |
| 1205 goto out; | |
| 1206 } | |
| 1207 | |
| 1208 /* | |
| 2082 | 1209 * Load any hot spares for this pool. |
| 1210 */ | |
| 1211 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, | |
| 5450 | 1212 DMU_POOL_SPARES, sizeof (uint64_t), 1, &spa->spa_spares.sav_object); |
| 2082 | 1213 if (error != 0 && error != ENOENT) { |
| 1214 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1215 VDEV_AUX_CORRUPT_DATA); | |
| 1216 error = EIO; | |
| 1217 goto out; | |
| 1218 } | |
| 1219 if (error == 0) { | |
| 4577 | 1220 ASSERT(spa_version(spa) >= SPA_VERSION_SPARES); |
| 5450 | 1221 if (load_nvlist(spa, spa->spa_spares.sav_object, |
| 1222 &spa->spa_spares.sav_config) != 0) { | |
| 2082 | 1223 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1224 VDEV_AUX_CORRUPT_DATA); | |
| 1225 error = EIO; | |
| 1226 goto out; | |
| 1227 } | |
| 1228 | |
| 1229 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 1230 spa_load_spares(spa); | |
| 1231 spa_config_exit(spa, FTAG); | |
| 1232 } | |
| 1233 | |
| 5450 | 1234 /* |
| 1235 * Load any level 2 ARC devices for this pool. | |
| 1236 */ | |
| 1237 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, | |
| 1238 DMU_POOL_L2CACHE, sizeof (uint64_t), 1, | |
| 1239 &spa->spa_l2cache.sav_object); | |
| 1240 if (error != 0 && error != ENOENT) { | |
| 1241 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1242 VDEV_AUX_CORRUPT_DATA); | |
| 1243 error = EIO; | |
| 1244 goto out; | |
| 1245 } | |
| 1246 if (error == 0) { | |
| 1247 ASSERT(spa_version(spa) >= SPA_VERSION_L2CACHE); | |
| 1248 if (load_nvlist(spa, spa->spa_l2cache.sav_object, | |
| 1249 &spa->spa_l2cache.sav_config) != 0) { | |
| 1250 vdev_set_state(rvd, B_TRUE, | |
| 1251 VDEV_STATE_CANT_OPEN, | |
| 1252 VDEV_AUX_CORRUPT_DATA); | |
| 1253 error = EIO; | |
| 1254 goto out; | |
| 1255 } | |
| 1256 | |
| 1257 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 1258 spa_load_l2cache(spa); | |
| 1259 spa_config_exit(spa, FTAG); | |
| 1260 } | |
| 1261 | |
| 5094 | 1262 spa->spa_delegation = zpool_prop_default_numeric(ZPOOL_PROP_DELEGATION); |
| 4543 | 1263 |
| 3912 | 1264 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, |
| 1265 DMU_POOL_PROPS, sizeof (uint64_t), 1, &spa->spa_pool_props_object); | |
| 1266 | |
| 1267 if (error && error != ENOENT) { | |
| 1268 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1269 VDEV_AUX_CORRUPT_DATA); | |
| 1270 error = EIO; | |
| 1271 goto out; | |
| 1272 } | |
| 1273 | |
| 1274 if (error == 0) { | |
| 1275 (void) zap_lookup(spa->spa_meta_objset, | |
| 1276 spa->spa_pool_props_object, | |
| 4451 | 1277 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), |
| 3912 | 1278 sizeof (uint64_t), 1, &spa->spa_bootfs); |
| 4451 | 1279 (void) zap_lookup(spa->spa_meta_objset, |
| 1280 spa->spa_pool_props_object, | |
| 1281 zpool_prop_to_name(ZPOOL_PROP_AUTOREPLACE), | |
| 1282 sizeof (uint64_t), 1, &autoreplace); | |
| 4543 | 1283 (void) zap_lookup(spa->spa_meta_objset, |
| 1284 spa->spa_pool_props_object, | |
| 1285 zpool_prop_to_name(ZPOOL_PROP_DELEGATION), | |
| 1286 sizeof (uint64_t), 1, &spa->spa_delegation); | |
| 5329 | 1287 (void) zap_lookup(spa->spa_meta_objset, |
| 1288 spa->spa_pool_props_object, | |
| 1289 zpool_prop_to_name(ZPOOL_PROP_FAILUREMODE), | |
| 1290 sizeof (uint64_t), 1, &spa->spa_failmode); | |
| 3912 | 1291 } |
| 1292 | |
| 2082 | 1293 /* |
| 4451 | 1294 * If the 'autoreplace' property is set, then post a resource notifying |
| 1295 * the ZFS DE that it should not issue any faults for unopenable | |
| 1296 * devices. We also iterate over the vdevs, and post a sysevent for any | |
| 1297 * unopenable vdevs so that the normal autoreplace handler can take | |
| 1298 * over. | |
| 1299 */ | |
|
5756
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6585441 spa_event_notify() doesn't pass its attributes
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diff
changeset
|
1300 if (autoreplace && state != SPA_LOAD_TRYIMPORT) |
| 4451 | 1301 spa_check_removed(spa->spa_root_vdev); |
| 1302 | |
| 1303 /* | |
|
1986
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
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diff
changeset
|
1304 * Load the vdev state for all toplevel vdevs. |
| 789 | 1305 */ |
|
1986
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6424405 zpool import destroyed_pool can damage existing pool using same devices
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diff
changeset
|
1306 vdev_load(rvd); |
| 789 | 1307 |
| 1308 /* | |
| 1309 * Propagate the leaf DTLs we just loaded all the way up the tree. | |
| 1310 */ | |
| 1544 | 1311 spa_config_enter(spa, RW_WRITER, FTAG); |
| 789 | 1312 vdev_dtl_reassess(rvd, 0, 0, B_FALSE); |
| 1544 | 1313 spa_config_exit(spa, FTAG); |
| 789 | 1314 |
| 1315 /* | |
| 1316 * Check the state of the root vdev. If it can't be opened, it | |
| 1317 * indicates one or more toplevel vdevs are faulted. | |
| 1318 */ | |
| 1544 | 1319 if (rvd->vdev_state <= VDEV_STATE_CANT_OPEN) { |
| 1320 error = ENXIO; | |
| 1321 goto out; | |
| 1322 } | |
| 789 | 1323 |
| 1544 | 1324 if ((spa_mode & FWRITE) && state != SPA_LOAD_TRYIMPORT) { |
|
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|
1325 dmu_tx_t *tx; |
|
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changeset
|
1326 int need_update = B_FALSE; |
|
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|
1327 int c; |
|
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1328 |
|
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|
1329 /* |
|
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|
1330 * Claim log blocks that haven't been committed yet. |
|
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|
1331 * This must all happen in a single txg. |
|
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|
1332 */ |
|
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|
1333 tx = dmu_tx_create_assigned(spa_get_dsl(spa), |
| 789 | 1334 spa_first_txg(spa)); |
| 2417 | 1335 (void) dmu_objset_find(spa->spa_name, |
| 1336 zil_claim, tx, DS_FIND_CHILDREN); | |
| 789 | 1337 dmu_tx_commit(tx); |
| 1338 | |
| 1339 spa->spa_sync_on = B_TRUE; | |
| 1340 txg_sync_start(spa->spa_dsl_pool); | |
| 1341 | |
| 1342 /* | |
| 1343 * Wait for all claims to sync. | |
| 1344 */ | |
| 1345 txg_wait_synced(spa->spa_dsl_pool, 0); | |
|
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changeset
|
1346 |
|
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|
1347 /* |
|
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|
1348 * If the config cache is stale, or we have uninitialized |
|
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|
1349 * metaslabs (see spa_vdev_add()), then update the config. |
|
1585
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changeset
|
1350 */ |
|
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|
1351 if (config_cache_txg != spa->spa_config_txg || |
|
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|
1352 state == SPA_LOAD_IMPORT) |
|
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|
1353 need_update = B_TRUE; |
|
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|
1354 |
|
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|
1355 for (c = 0; c < rvd->vdev_children; c++) |
|
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|
1356 if (rvd->vdev_child[c]->vdev_ms_array == 0) |
|
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|
1357 need_update = B_TRUE; |
|
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|
1358 |
|
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|
1359 /* |
|
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|
1360 * Update the config cache asychronously in case we're the |
|
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|
1361 * root pool, in which case the config cache isn't writable yet. |
|
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|
1362 */ |
|
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|
1363 if (need_update) |
|
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|
1364 spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE); |
| 789 | 1365 } |
| 1366 | |
| 1544 | 1367 error = 0; |
| 1368 out: | |
|
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|
1369 spa->spa_minref = refcount_count(&spa->spa_refcount); |
| 2082 | 1370 if (error && error != EBADF) |
| 1544 | 1371 zfs_ereport_post(FM_EREPORT_ZFS_POOL, spa, NULL, NULL, 0, 0); |
| 1372 spa->spa_load_state = SPA_LOAD_NONE; | |
| 1373 spa->spa_ena = 0; | |
| 1374 | |
| 1375 return (error); | |
| 789 | 1376 } |
| 1377 | |
| 1378 /* | |
| 1379 * Pool Open/Import | |
| 1380 * | |
| 1381 * The import case is identical to an open except that the configuration is sent | |
| 1382 * down from userland, instead of grabbed from the configuration cache. For the | |
| 1383 * case of an open, the pool configuration will exist in the | |
| 4451 | 1384 * POOL_STATE_UNINITIALIZED state. |
| 789 | 1385 * |
| 1386 * The stats information (gen/count/ustats) is used to gather vdev statistics at | |
| 1387 * the same time open the pool, without having to keep around the spa_t in some | |
| 1388 * ambiguous state. | |
| 1389 */ | |
| 1390 static int | |
| 1391 spa_open_common(const char *pool, spa_t **spapp, void *tag, nvlist_t **config) | |
| 1392 { | |
| 1393 spa_t *spa; | |
| 1394 int error; | |
| 1395 int locked = B_FALSE; | |
| 1396 | |
| 1397 *spapp = NULL; | |
| 1398 | |
| 1399 /* | |
| 1400 * As disgusting as this is, we need to support recursive calls to this | |
| 1401 * function because dsl_dir_open() is called during spa_load(), and ends | |
| 1402 * up calling spa_open() again. The real fix is to figure out how to | |
| 1403 * avoid dsl_dir_open() calling this in the first place. | |
| 1404 */ | |
| 1405 if (mutex_owner(&spa_namespace_lock) != curthread) { | |
| 1406 mutex_enter(&spa_namespace_lock); | |
| 1407 locked = B_TRUE; | |
| 1408 } | |
| 1409 | |
| 1410 if ((spa = spa_lookup(pool)) == NULL) { | |
| 1411 if (locked) | |
| 1412 mutex_exit(&spa_namespace_lock); | |
| 1413 return (ENOENT); | |
| 1414 } | |
| 1415 if (spa->spa_state == POOL_STATE_UNINITIALIZED) { | |
| 1416 | |
| 1417 spa_activate(spa); | |
| 1418 | |
|
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1419 error = spa_load(spa, spa->spa_config, SPA_LOAD_OPEN, B_FALSE); |
| 789 | 1420 |
| 1421 if (error == EBADF) { | |
| 1422 /* | |
|
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1423 * If vdev_validate() returns failure (indicated by |
|
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1424 * EBADF), it indicates that one of the vdevs indicates |
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1425 * that the pool has been exported or destroyed. If |
|
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1426 * this is the case, the config cache is out of sync and |
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1427 * we should remove the pool from the namespace. |
| 789 | 1428 */ |
| 1429 spa_unload(spa); | |
| 1430 spa_deactivate(spa); | |
|
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1431 spa_config_sync(spa, B_TRUE, B_TRUE); |
| 789 | 1432 spa_remove(spa); |
| 1433 if (locked) | |
| 1434 mutex_exit(&spa_namespace_lock); | |
| 1435 return (ENOENT); | |
| 1544 | 1436 } |
| 1437 | |
| 1438 if (error) { | |
| 789 | 1439 /* |
| 1440 * We can't open the pool, but we still have useful | |
| 1441 * information: the state of each vdev after the | |
| 1442 * attempted vdev_open(). Return this to the user. | |
| 1443 */ | |
|
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1444 if (config != NULL && spa->spa_root_vdev != NULL) { |
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1445 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 1446 *config = spa_config_generate(spa, NULL, -1ULL, |
| 1447 B_TRUE); | |
|
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1448 spa_config_exit(spa, FTAG); |
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1449 } |
| 789 | 1450 spa_unload(spa); |
| 1451 spa_deactivate(spa); | |
| 1544 | 1452 spa->spa_last_open_failed = B_TRUE; |
| 789 | 1453 if (locked) |
| 1454 mutex_exit(&spa_namespace_lock); | |
| 1455 *spapp = NULL; | |
| 1456 return (error); | |
| 1544 | 1457 } else { |
| 1458 spa->spa_last_open_failed = B_FALSE; | |
| 789 | 1459 } |
| 1460 } | |
| 1461 | |
| 1462 spa_open_ref(spa, tag); | |
| 4451 | 1463 |
| 789 | 1464 if (locked) |
| 1465 mutex_exit(&spa_namespace_lock); | |
| 1466 | |
| 1467 *spapp = spa; | |
| 1468 | |
| 1469 if (config != NULL) { | |
| 1544 | 1470 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 1471 *config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); |
| 1544 | 1472 spa_config_exit(spa, FTAG); |
| 789 | 1473 } |
| 1474 | |
| 1475 return (0); | |
| 1476 } | |
| 1477 | |
| 1478 int | |
| 1479 spa_open(const char *name, spa_t **spapp, void *tag) | |
| 1480 { | |
| 1481 return (spa_open_common(name, spapp, tag, NULL)); | |
| 1482 } | |
| 1483 | |
| 1544 | 1484 /* |
| 1485 * Lookup the given spa_t, incrementing the inject count in the process, | |
| 1486 * preventing it from being exported or destroyed. | |
| 1487 */ | |
| 1488 spa_t * | |
| 1489 spa_inject_addref(char *name) | |
| 1490 { | |
| 1491 spa_t *spa; | |
| 1492 | |
| 1493 mutex_enter(&spa_namespace_lock); | |
| 1494 if ((spa = spa_lookup(name)) == NULL) { | |
| 1495 mutex_exit(&spa_namespace_lock); | |
| 1496 return (NULL); | |
| 1497 } | |
| 1498 spa->spa_inject_ref++; | |
| 1499 mutex_exit(&spa_namespace_lock); | |
| 1500 | |
| 1501 return (spa); | |
| 1502 } | |
| 1503 | |
| 1504 void | |
| 1505 spa_inject_delref(spa_t *spa) | |
| 1506 { | |
| 1507 mutex_enter(&spa_namespace_lock); | |
| 1508 spa->spa_inject_ref--; | |
| 1509 mutex_exit(&spa_namespace_lock); | |
| 1510 } | |
| 1511 | |
| 5450 | 1512 /* |
| 1513 * Add spares device information to the nvlist. | |
| 1514 */ | |
| 2082 | 1515 static void |
| 1516 spa_add_spares(spa_t *spa, nvlist_t *config) | |
| 1517 { | |
| 1518 nvlist_t **spares; | |
| 1519 uint_t i, nspares; | |
| 1520 nvlist_t *nvroot; | |
| 1521 uint64_t guid; | |
| 1522 vdev_stat_t *vs; | |
| 1523 uint_t vsc; | |
|
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1524 uint64_t pool; |
| 2082 | 1525 |
| 5450 | 1526 if (spa->spa_spares.sav_count == 0) |
| 2082 | 1527 return; |
| 1528 | |
| 1529 VERIFY(nvlist_lookup_nvlist(config, | |
| 1530 ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); | |
| 5450 | 1531 VERIFY(nvlist_lookup_nvlist_array(spa->spa_spares.sav_config, |
| 2082 | 1532 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); |
| 1533 if (nspares != 0) { | |
| 1534 VERIFY(nvlist_add_nvlist_array(nvroot, | |
| 1535 ZPOOL_CONFIG_SPARES, spares, nspares) == 0); | |
| 1536 VERIFY(nvlist_lookup_nvlist_array(nvroot, | |
| 1537 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); | |
| 1538 | |
| 1539 /* | |
| 1540 * Go through and find any spares which have since been | |
| 1541 * repurposed as an active spare. If this is the case, update | |
| 1542 * their status appropriately. | |
| 1543 */ | |
| 1544 for (i = 0; i < nspares; i++) { | |
| 1545 VERIFY(nvlist_lookup_uint64(spares[i], | |
| 1546 ZPOOL_CONFIG_GUID, &guid) == 0); | |
|
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1547 if (spa_spare_exists(guid, &pool, NULL) && |
|
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1548 pool != 0ULL) { |
| 2082 | 1549 VERIFY(nvlist_lookup_uint64_array( |
| 1550 spares[i], ZPOOL_CONFIG_STATS, | |
| 1551 (uint64_t **)&vs, &vsc) == 0); | |
| 1552 vs->vs_state = VDEV_STATE_CANT_OPEN; | |
| 1553 vs->vs_aux = VDEV_AUX_SPARED; | |
| 1554 } | |
| 1555 } | |
| 1556 } | |
| 1557 } | |
| 1558 | |
| 5450 | 1559 /* |
| 1560 * Add l2cache device information to the nvlist, including vdev stats. | |
| 1561 */ | |
| 1562 static void | |
| 1563 spa_add_l2cache(spa_t *spa, nvlist_t *config) | |
| 1564 { | |
| 1565 nvlist_t **l2cache; | |
| 1566 uint_t i, j, nl2cache; | |
| 1567 nvlist_t *nvroot; | |
| 1568 uint64_t guid; | |
| 1569 vdev_t *vd; | |
| 1570 vdev_stat_t *vs; | |
| 1571 uint_t vsc; | |
| 1572 | |
| 1573 if (spa->spa_l2cache.sav_count == 0) | |
| 1574 return; | |
| 1575 | |
| 1576 spa_config_enter(spa, RW_READER, FTAG); | |
| 1577 | |
| 1578 VERIFY(nvlist_lookup_nvlist(config, | |
| 1579 ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); | |
| 1580 VERIFY(nvlist_lookup_nvlist_array(spa->spa_l2cache.sav_config, | |
| 1581 ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0); | |
| 1582 if (nl2cache != 0) { | |
| 1583 VERIFY(nvlist_add_nvlist_array(nvroot, | |
| 1584 ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache) == 0); | |
| 1585 VERIFY(nvlist_lookup_nvlist_array(nvroot, | |
| 1586 ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0); | |
| 1587 | |
| 1588 /* | |
| 1589 * Update level 2 cache device stats. | |
| 1590 */ | |
| 1591 | |
| 1592 for (i = 0; i < nl2cache; i++) { | |
| 1593 VERIFY(nvlist_lookup_uint64(l2cache[i], | |
| 1594 ZPOOL_CONFIG_GUID, &guid) == 0); | |
| 1595 | |
| 1596 vd = NULL; | |
| 1597 for (j = 0; j < spa->spa_l2cache.sav_count; j++) { | |
| 1598 if (guid == | |
| 1599 spa->spa_l2cache.sav_vdevs[j]->vdev_guid) { | |
| 1600 vd = spa->spa_l2cache.sav_vdevs[j]; | |
| 1601 break; | |
| 1602 } | |
| 1603 } | |
| 1604 ASSERT(vd != NULL); | |
| 1605 | |
| 1606 VERIFY(nvlist_lookup_uint64_array(l2cache[i], | |
| 1607 ZPOOL_CONFIG_STATS, (uint64_t **)&vs, &vsc) == 0); | |
| 1608 vdev_get_stats(vd, vs); | |
| 1609 } | |
| 1610 } | |
| 1611 | |
| 1612 spa_config_exit(spa, FTAG); | |
| 1613 } | |
| 1614 | |
| 789 | 1615 int |
| 1544 | 1616 spa_get_stats(const char *name, nvlist_t **config, char *altroot, size_t buflen) |
| 789 | 1617 { |
| 1618 int error; | |
| 1619 spa_t *spa; | |
| 1620 | |
| 1621 *config = NULL; | |
| 1622 error = spa_open_common(name, &spa, FTAG, config); | |
| 1623 | |
| 2082 | 1624 if (spa && *config != NULL) { |
| 1544 | 1625 VERIFY(nvlist_add_uint64(*config, ZPOOL_CONFIG_ERRCOUNT, |
| 1626 spa_get_errlog_size(spa)) == 0); | |
| 1627 | |
| 2082 | 1628 spa_add_spares(spa, *config); |
| 5450 | 1629 spa_add_l2cache(spa, *config); |
| 2082 | 1630 } |
| 1631 | |
| 1544 | 1632 /* |
| 1633 * We want to get the alternate root even for faulted pools, so we cheat | |
| 1634 * and call spa_lookup() directly. | |
| 1635 */ | |
| 1636 if (altroot) { | |
| 1637 if (spa == NULL) { | |
| 1638 mutex_enter(&spa_namespace_lock); | |
| 1639 spa = spa_lookup(name); | |
| 1640 if (spa) | |
| 1641 spa_altroot(spa, altroot, buflen); | |
| 1642 else | |
| 1643 altroot[0] = '\0'; | |
| 1644 spa = NULL; | |
| 1645 mutex_exit(&spa_namespace_lock); | |
| 1646 } else { | |
| 1647 spa_altroot(spa, altroot, buflen); | |
| 1648 } | |
| 1649 } | |
| 1650 | |
| 789 | 1651 if (spa != NULL) |
| 1652 spa_close(spa, FTAG); | |
| 1653 | |
| 1654 return (error); | |
| 1655 } | |
| 1656 | |
| 1657 /* | |
| 5450 | 1658 * Validate that the auxiliary device array is well formed. We must have an |
| 1659 * array of nvlists, each which describes a valid leaf vdev. If this is an | |
| 1660 * import (mode is VDEV_ALLOC_SPARE), then we allow corrupted spares to be | |
| 1661 * specified, as long as they are well-formed. | |
| 2082 | 1662 */ |
| 1663 static int | |
| 5450 | 1664 spa_validate_aux_devs(spa_t *spa, nvlist_t *nvroot, uint64_t crtxg, int mode, |
| 1665 spa_aux_vdev_t *sav, const char *config, uint64_t version, | |
| 1666 vdev_labeltype_t label) | |
| 2082 | 1667 { |
| 5450 | 1668 nvlist_t **dev; |
| 1669 uint_t i, ndev; | |
| 2082 | 1670 vdev_t *vd; |
| 1671 int error; | |
| 1672 | |
| 1673 /* | |
| 5450 | 1674 * It's acceptable to have no devs specified. |
| 2082 | 1675 */ |
| 5450 | 1676 if (nvlist_lookup_nvlist_array(nvroot, config, &dev, &ndev) != 0) |
| 2082 | 1677 return (0); |
| 1678 | |
| 5450 | 1679 if (ndev == 0) |
| 2082 | 1680 return (EINVAL); |
| 1681 | |
| 1682 /* | |
| 5450 | 1683 * Make sure the pool is formatted with a version that supports this |
| 1684 * device type. | |
| 2082 | 1685 */ |
| 5450 | 1686 if (spa_version(spa) < version) |
| 2082 | 1687 return (ENOTSUP); |
| 1688 | |
|
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1689 /* |
| 5450 | 1690 * Set the pending device list so we correctly handle device in-use |
|
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|
1691 * checking. |
|
a2fa338530c1
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|
1692 */ |
| 5450 | 1693 sav->sav_pending = dev; |
| 1694 sav->sav_npending = ndev; | |
| 1695 | |
| 1696 for (i = 0; i < ndev; i++) { | |
| 1697 if ((error = spa_config_parse(spa, &vd, dev[i], NULL, 0, | |
| 2082 | 1698 mode)) != 0) |
|
3377
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|
1699 goto out; |
| 2082 | 1700 |
| 1701 if (!vd->vdev_ops->vdev_op_leaf) { | |
| 1702 vdev_free(vd); | |
|
3377
a2fa338530c1
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|
1703 error = EINVAL; |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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|
1704 goto out; |
| 2082 | 1705 } |
| 1706 | |
| 5450 | 1707 /* |
| 1708 * The L2ARC currently only supports disk devices. | |
| 1709 */ | |
| 1710 if ((strcmp(config, ZPOOL_CONFIG_L2CACHE) == 0) && | |
| 1711 strcmp(vd->vdev_ops->vdev_op_type, VDEV_TYPE_DISK) != 0) { | |
| 1712 error = ENOTBLK; | |
| 1713 goto out; | |
| 1714 } | |
| 1715 | |
| 2082 | 1716 vd->vdev_top = vd; |
|
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1717 |
|
a2fa338530c1
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1718 if ((error = vdev_open(vd)) == 0 && |
| 5450 | 1719 (error = vdev_label_init(vd, crtxg, label)) == 0) { |
| 1720 VERIFY(nvlist_add_uint64(dev[i], ZPOOL_CONFIG_GUID, | |
|
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1721 vd->vdev_guid) == 0); |
| 2082 | 1722 } |
| 1723 | |
| 1724 vdev_free(vd); | |
|
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1725 |
| 5450 | 1726 if (error && |
| 1727 (mode != VDEV_ALLOC_SPARE && mode != VDEV_ALLOC_L2CACHE)) | |
|
3377
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1728 goto out; |
|
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6393525 vdev_reopen() should verify that it's still the same device
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|
1729 else |
|
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6393525 vdev_reopen() should verify that it's still the same device
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1730 error = 0; |
| 2082 | 1731 } |
| 1732 | |
|
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1733 out: |
| 5450 | 1734 sav->sav_pending = NULL; |
| 1735 sav->sav_npending = 0; | |
|
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1736 return (error); |
| 2082 | 1737 } |
| 1738 | |
| 5450 | 1739 static int |
| 1740 spa_validate_aux(spa_t *spa, nvlist_t *nvroot, uint64_t crtxg, int mode) | |
| 1741 { | |
| 1742 int error; | |
| 1743 | |
| 1744 if ((error = spa_validate_aux_devs(spa, nvroot, crtxg, mode, | |
| 1745 &spa->spa_spares, ZPOOL_CONFIG_SPARES, SPA_VERSION_SPARES, | |
| 1746 VDEV_LABEL_SPARE)) != 0) { | |
| 1747 return (error); | |
| 1748 } | |
| 1749 | |
| 1750 return (spa_validate_aux_devs(spa, nvroot, crtxg, mode, | |
| 1751 &spa->spa_l2cache, ZPOOL_CONFIG_L2CACHE, SPA_VERSION_L2CACHE, | |
| 1752 VDEV_LABEL_L2CACHE)); | |
| 1753 } | |
| 1754 | |
| 1755 static void | |
| 1756 spa_set_aux_vdevs(spa_aux_vdev_t *sav, nvlist_t **devs, int ndevs, | |
| 1757 const char *config) | |
| 1758 { | |
| 1759 int i; | |
| 1760 | |
| 1761 if (sav->sav_config != NULL) { | |
| 1762 nvlist_t **olddevs; | |
| 1763 uint_t oldndevs; | |
| 1764 nvlist_t **newdevs; | |
| 1765 | |
| 1766 /* | |
| 1767 * Generate new dev list by concatentating with the | |
| 1768 * current dev list. | |
| 1769 */ | |
| 1770 VERIFY(nvlist_lookup_nvlist_array(sav->sav_config, config, | |
| 1771 &olddevs, &oldndevs) == 0); | |
| 1772 | |
| 1773 newdevs = kmem_alloc(sizeof (void *) * | |
| 1774 (ndevs + oldndevs), KM_SLEEP); | |
| 1775 for (i = 0; i < oldndevs; i++) | |
| 1776 VERIFY(nvlist_dup(olddevs[i], &newdevs[i], | |
| 1777 KM_SLEEP) == 0); | |
| 1778 for (i = 0; i < ndevs; i++) | |
| 1779 VERIFY(nvlist_dup(devs[i], &newdevs[i + oldndevs], | |
| 1780 KM_SLEEP) == 0); | |
| 1781 | |
| 1782 VERIFY(nvlist_remove(sav->sav_config, config, | |
| 1783 DATA_TYPE_NVLIST_ARRAY) == 0); | |
| 1784 | |
| 1785 VERIFY(nvlist_add_nvlist_array(sav->sav_config, | |
| 1786 config, newdevs, ndevs + oldndevs) == 0); | |
| 1787 for (i = 0; i < oldndevs + ndevs; i++) | |
| 1788 nvlist_free(newdevs[i]); | |
| 1789 kmem_free(newdevs, (oldndevs + ndevs) * sizeof (void *)); | |
| 1790 } else { | |
| 1791 /* | |
| 1792 * Generate a new dev list. | |
| 1793 */ | |
| 1794 VERIFY(nvlist_alloc(&sav->sav_config, NV_UNIQUE_NAME, | |
| 1795 KM_SLEEP) == 0); | |
| 1796 VERIFY(nvlist_add_nvlist_array(sav->sav_config, config, | |
| 1797 devs, ndevs) == 0); | |
| 1798 } | |
| 1799 } | |
| 1800 | |
| 1801 /* | |
| 1802 * Stop and drop level 2 ARC devices | |
| 1803 */ | |
| 1804 void | |
| 1805 spa_l2cache_drop(spa_t *spa) | |
| 1806 { | |
| 1807 vdev_t *vd; | |
| 1808 int i; | |
| 1809 spa_aux_vdev_t *sav = &spa->spa_l2cache; | |
| 1810 | |
| 1811 for (i = 0; i < sav->sav_count; i++) { | |
| 1812 uint64_t pool; | |
| 1813 | |
| 1814 vd = sav->sav_vdevs[i]; | |
| 1815 ASSERT(vd != NULL); | |
| 1816 | |
| 1817 if (spa_mode & FWRITE && | |
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1818 spa_l2cache_exists(vd->vdev_guid, &pool) && pool != 0ULL && |
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1819 l2arc_vdev_present(vd)) { |
| 5450 | 1820 l2arc_remove_vdev(vd); |
| 1821 } | |
| 1822 if (vd->vdev_isl2cache) | |
| 1823 spa_l2cache_remove(vd); | |
| 1824 vdev_clear_stats(vd); | |
| 1825 (void) vdev_close(vd); | |
| 1826 } | |
| 1827 } | |
| 1828 | |
| 2082 | 1829 /* |
| 789 | 1830 * Pool Creation |
| 1831 */ | |
| 1832 int | |
| 5094 | 1833 spa_create(const char *pool, nvlist_t *nvroot, nvlist_t *props, |
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1834 const char *history_str, nvlist_t *zplprops) |
| 789 | 1835 { |
| 1836 spa_t *spa; | |
| 5094 | 1837 char *altroot = NULL; |
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1838 vdev_t *rvd; |
| 789 | 1839 dsl_pool_t *dp; |
| 1840 dmu_tx_t *tx; | |
| 2082 | 1841 int c, error = 0; |
| 789 | 1842 uint64_t txg = TXG_INITIAL; |
| 5450 | 1843 nvlist_t **spares, **l2cache; |
| 1844 uint_t nspares, nl2cache; | |
| 5094 | 1845 uint64_t version; |
| 789 | 1846 |
| 1847 /* | |
| 1848 * If this pool already exists, return failure. | |
| 1849 */ | |
| 1850 mutex_enter(&spa_namespace_lock); | |
| 1851 if (spa_lookup(pool) != NULL) { | |
| 1852 mutex_exit(&spa_namespace_lock); | |
| 1853 return (EEXIST); | |
| 1854 } | |
| 1855 | |
| 1856 /* | |
| 1857 * Allocate a new spa_t structure. | |
| 1858 */ | |
| 5094 | 1859 (void) nvlist_lookup_string(props, |
| 1860 zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot); | |
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1861 spa = spa_add(pool, altroot); |
| 789 | 1862 spa_activate(spa); |
| 1863 | |
| 1864 spa->spa_uberblock.ub_txg = txg - 1; | |
| 5094 | 1865 |
| 1866 if (props && (error = spa_prop_validate(spa, props))) { | |
| 1867 spa_unload(spa); | |
| 1868 spa_deactivate(spa); | |
| 1869 spa_remove(spa); | |
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1870 mutex_exit(&spa_namespace_lock); |
| 5094 | 1871 return (error); |
| 1872 } | |
| 1873 | |
| 1874 if (nvlist_lookup_uint64(props, zpool_prop_to_name(ZPOOL_PROP_VERSION), | |
| 1875 &version) != 0) | |
| 1876 version = SPA_VERSION; | |
| 1877 ASSERT(version <= SPA_VERSION); | |
| 1878 spa->spa_uberblock.ub_version = version; | |
| 789 | 1879 spa->spa_ubsync = spa->spa_uberblock; |
| 1880 | |
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1881 /* |
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1882 * Create the root vdev. |
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1883 */ |
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1884 spa_config_enter(spa, RW_WRITER, FTAG); |
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1885 |
| 2082 | 1886 error = spa_config_parse(spa, &rvd, nvroot, NULL, 0, VDEV_ALLOC_ADD); |
| 1887 | |
| 1888 ASSERT(error != 0 || rvd != NULL); | |
| 1889 ASSERT(error != 0 || spa->spa_root_vdev == rvd); | |
| 1890 | |
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1891 if (error == 0 && !zfs_allocatable_devs(nvroot)) |
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1892 error = EINVAL; |
| 2082 | 1893 |
| 1894 if (error == 0 && | |
| 1895 (error = vdev_create(rvd, txg, B_FALSE)) == 0 && | |
| 5450 | 1896 (error = spa_validate_aux(spa, nvroot, txg, |
| 2082 | 1897 VDEV_ALLOC_ADD)) == 0) { |
| 1898 for (c = 0; c < rvd->vdev_children; c++) | |
| 1899 vdev_init(rvd->vdev_child[c], txg); | |
| 1900 vdev_config_dirty(rvd); | |
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1901 } |
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1902 |
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1903 spa_config_exit(spa, FTAG); |
| 789 | 1904 |
| 2082 | 1905 if (error != 0) { |
| 789 | 1906 spa_unload(spa); |
| 1907 spa_deactivate(spa); | |
| 1908 spa_remove(spa); | |
| 1909 mutex_exit(&spa_namespace_lock); | |
| 1910 return (error); | |
| 1911 } | |
| 1912 | |
| 2082 | 1913 /* |
| 1914 * Get the list of spares, if specified. | |
| 1915 */ | |
| 1916 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
| 1917 &spares, &nspares) == 0) { | |
| 5450 | 1918 VERIFY(nvlist_alloc(&spa->spa_spares.sav_config, NV_UNIQUE_NAME, |
| 2082 | 1919 KM_SLEEP) == 0); |
| 5450 | 1920 VERIFY(nvlist_add_nvlist_array(spa->spa_spares.sav_config, |
| 2082 | 1921 ZPOOL_CONFIG_SPARES, spares, nspares) == 0); |
| 1922 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 1923 spa_load_spares(spa); | |
| 1924 spa_config_exit(spa, FTAG); | |
| 5450 | 1925 spa->spa_spares.sav_sync = B_TRUE; |
| 1926 } | |
| 1927 | |
| 1928 /* | |
| 1929 * Get the list of level 2 cache devices, if specified. | |
| 1930 */ | |
| 1931 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, | |
| 1932 &l2cache, &nl2cache) == 0) { | |
| 1933 VERIFY(nvlist_alloc(&spa->spa_l2cache.sav_config, | |
| 1934 NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
| 1935 VERIFY(nvlist_add_nvlist_array(spa->spa_l2cache.sav_config, | |
| 1936 ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache) == 0); | |
| 1937 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 1938 spa_load_l2cache(spa); | |
| 1939 spa_config_exit(spa, FTAG); | |
| 1940 spa->spa_l2cache.sav_sync = B_TRUE; | |
| 2082 | 1941 } |
| 1942 | |
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1943 spa->spa_dsl_pool = dp = dsl_pool_create(spa, zplprops, txg); |
| 789 | 1944 spa->spa_meta_objset = dp->dp_meta_objset; |
| 1945 | |
| 1946 tx = dmu_tx_create_assigned(dp, txg); | |
| 1947 | |
| 1948 /* | |
| 1949 * Create the pool config object. | |
| 1950 */ | |
| 1951 spa->spa_config_object = dmu_object_alloc(spa->spa_meta_objset, | |
| 1952 DMU_OT_PACKED_NVLIST, 1 << 14, | |
| 1953 DMU_OT_PACKED_NVLIST_SIZE, sizeof (uint64_t), tx); | |
| 1954 | |
| 1544 | 1955 if (zap_add(spa->spa_meta_objset, |
| 789 | 1956 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CONFIG, |
| 1544 | 1957 sizeof (uint64_t), 1, &spa->spa_config_object, tx) != 0) { |
| 1958 cmn_err(CE_PANIC, "failed to add pool config"); | |
| 1959 } | |
| 789 | 1960 |
| 5094 | 1961 /* Newly created pools with the right version are always deflated. */ |
| 1962 if (version >= SPA_VERSION_RAIDZ_DEFLATE) { | |
| 1963 spa->spa_deflate = TRUE; | |
| 1964 if (zap_add(spa->spa_meta_objset, | |
| 1965 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
| 1966 sizeof (uint64_t), 1, &spa->spa_deflate, tx) != 0) { | |
| 1967 cmn_err(CE_PANIC, "failed to add deflate"); | |
| 1968 } | |
| 2082 | 1969 } |
| 1970 | |
| 789 | 1971 /* |
| 1972 * Create the deferred-free bplist object. Turn off compression | |
| 1973 * because sync-to-convergence takes longer if the blocksize | |
| 1974 * keeps changing. | |
| 1975 */ | |
| 1976 spa->spa_sync_bplist_obj = bplist_create(spa->spa_meta_objset, | |
| 1977 1 << 14, tx); | |
| 1978 dmu_object_set_compress(spa->spa_meta_objset, spa->spa_sync_bplist_obj, | |
| 1979 ZIO_COMPRESS_OFF, tx); | |
| 1980 | |
| 1544 | 1981 if (zap_add(spa->spa_meta_objset, |
| 789 | 1982 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SYNC_BPLIST, |
| 1544 | 1983 sizeof (uint64_t), 1, &spa->spa_sync_bplist_obj, tx) != 0) { |
| 1984 cmn_err(CE_PANIC, "failed to add bplist"); | |
| 1985 } | |
| 789 | 1986 |
| 2926 | 1987 /* |
| 1988 * Create the pool's history object. | |
| 1989 */ | |
| 5094 | 1990 if (version >= SPA_VERSION_ZPOOL_HISTORY) |
| 1991 spa_history_create_obj(spa, tx); | |
| 1992 | |
| 1993 /* | |
| 1994 * Set pool properties. | |
| 1995 */ | |
| 1996 spa->spa_bootfs = zpool_prop_default_numeric(ZPOOL_PROP_BOOTFS); | |
| 1997 spa->spa_delegation = zpool_prop_default_numeric(ZPOOL_PROP_DELEGATION); | |
| 5329 | 1998 spa->spa_failmode = zpool_prop_default_numeric(ZPOOL_PROP_FAILUREMODE); |
| 5094 | 1999 if (props) |
| 2000 spa_sync_props(spa, props, CRED(), tx); | |
| 2926 | 2001 |
| 789 | 2002 dmu_tx_commit(tx); |
| 2003 | |
| 2004 spa->spa_sync_on = B_TRUE; | |
| 2005 txg_sync_start(spa->spa_dsl_pool); | |
| 2006 | |
| 2007 /* | |
| 2008 * We explicitly wait for the first transaction to complete so that our | |
| 2009 * bean counters are appropriately updated. | |
| 2010 */ | |
| 2011 txg_wait_synced(spa->spa_dsl_pool, txg); | |
| 2012 | |
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2013 spa_config_sync(spa, B_FALSE, B_TRUE); |
| 789 | 2014 |
| 5094 | 2015 if (version >= SPA_VERSION_ZPOOL_HISTORY && history_str != NULL) |
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2016 (void) spa_history_log(spa, history_str, LOG_CMD_POOL_CREATE); |
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2017 |
| 789 | 2018 mutex_exit(&spa_namespace_lock); |
| 2019 | |
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2020 spa->spa_minref = refcount_count(&spa->spa_refcount); |
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2021 |
| 789 | 2022 return (0); |
| 2023 } | |
| 2024 | |
| 2025 /* | |
| 2026 * Import the given pool into the system. We set up the necessary spa_t and | |
| 2027 * then call spa_load() to do the dirty work. | |
| 2028 */ | |
| 6423 | 2029 static int |
| 2030 spa_import_common(const char *pool, nvlist_t *config, nvlist_t *props, | |
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2031 boolean_t isroot, boolean_t allowfaulted) |
| 789 | 2032 { |
| 2033 spa_t *spa; | |
| 5094 | 2034 char *altroot = NULL; |
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2035 int error, loaderr; |
| 2082 | 2036 nvlist_t *nvroot; |
| 5450 | 2037 nvlist_t **spares, **l2cache; |
| 2038 uint_t nspares, nl2cache; | |
| 789 | 2039 |
| 2040 /* | |
| 2041 * If a pool with this name exists, return failure. | |
| 2042 */ | |
| 2043 mutex_enter(&spa_namespace_lock); | |
| 2044 if (spa_lookup(pool) != NULL) { | |
| 2045 mutex_exit(&spa_namespace_lock); | |
| 2046 return (EEXIST); | |
| 2047 } | |
| 2048 | |
| 2049 /* | |
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2050 * Create and initialize the spa structure. |
| 789 | 2051 */ |
| 5094 | 2052 (void) nvlist_lookup_string(props, |
| 2053 zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot); | |
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2054 spa = spa_add(pool, altroot); |
| 789 | 2055 spa_activate(spa); |
| 2056 | |
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2057 if (allowfaulted) |
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2058 spa->spa_import_faulted = B_TRUE; |
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2059 spa->spa_is_root = isroot; |
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2060 |
| 789 | 2061 /* |
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2062 * Pass off the heavy lifting to spa_load(). |
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2063 * Pass TRUE for mosconfig (unless this is a root pool) because |
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2064 * the user-supplied config is actually the one to trust when |
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2065 * doing an import. |
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2066 */ |
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2067 loaderr = error = spa_load(spa, config, SPA_LOAD_IMPORT, !isroot); |
| 789 | 2068 |
| 2082 | 2069 spa_config_enter(spa, RW_WRITER, FTAG); |
| 2070 /* | |
| 2071 * Toss any existing sparelist, as it doesn't have any validity anymore, | |
| 2072 * and conflicts with spa_has_spare(). | |
| 2073 */ | |
| 6423 | 2074 if (!isroot && spa->spa_spares.sav_config) { |
| 5450 | 2075 nvlist_free(spa->spa_spares.sav_config); |
| 2076 spa->spa_spares.sav_config = NULL; | |
| 2082 | 2077 spa_load_spares(spa); |
| 2078 } | |
| 6423 | 2079 if (!isroot && spa->spa_l2cache.sav_config) { |
| 5450 | 2080 nvlist_free(spa->spa_l2cache.sav_config); |
| 2081 spa->spa_l2cache.sav_config = NULL; | |
| 2082 spa_load_l2cache(spa); | |
| 2083 } | |
| 2082 | 2084 |
| 2085 VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, | |
| 2086 &nvroot) == 0); | |
| 5450 | 2087 if (error == 0) |
| 2088 error = spa_validate_aux(spa, nvroot, -1ULL, VDEV_ALLOC_SPARE); | |
| 2089 if (error == 0) | |
| 2090 error = spa_validate_aux(spa, nvroot, -1ULL, | |
| 2091 VDEV_ALLOC_L2CACHE); | |
| 2082 | 2092 spa_config_exit(spa, FTAG); |
| 2093 | |
| 5094 | 2094 if (error != 0 || (props && (error = spa_prop_set(spa, props)))) { |
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2095 if (loaderr != 0 && loaderr != EINVAL && allowfaulted) { |
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2096 /* |
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2097 * If we failed to load the pool, but 'allowfaulted' is |
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2098 * set, then manually set the config as if the config |
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2099 * passed in was specified in the cache file. |
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2100 */ |
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2101 error = 0; |
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2102 spa->spa_import_faulted = B_FALSE; |
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2103 if (spa->spa_config == NULL) { |
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2104 spa_config_enter(spa, RW_READER, FTAG); |
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2105 spa->spa_config = spa_config_generate(spa, |
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2106 NULL, -1ULL, B_TRUE); |
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2107 spa_config_exit(spa, FTAG); |
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2108 } |
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2109 spa_unload(spa); |
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2110 spa_deactivate(spa); |
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2111 spa_config_sync(spa, B_FALSE, B_TRUE); |
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2112 } else { |
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2113 spa_unload(spa); |
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2114 spa_deactivate(spa); |
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2115 spa_remove(spa); |
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2116 } |
| 789 | 2117 mutex_exit(&spa_namespace_lock); |
| 2118 return (error); | |
| 2119 } | |
| 2120 | |
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|
2121 /* |
| 5450 | 2122 * Override any spares and level 2 cache devices as specified by |
| 2123 * the user, as these may have correct device names/devids, etc. | |
| 2082 | 2124 */ |
| 2125 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
| 2126 &spares, &nspares) == 0) { | |
| 5450 | 2127 if (spa->spa_spares.sav_config) |
| 2128 VERIFY(nvlist_remove(spa->spa_spares.sav_config, | |
| 2082 | 2129 ZPOOL_CONFIG_SPARES, DATA_TYPE_NVLIST_ARRAY) == 0); |
| 2130 else | |
| 5450 | 2131 VERIFY(nvlist_alloc(&spa->spa_spares.sav_config, |
| 2082 | 2132 NV_UNIQUE_NAME, KM_SLEEP) == 0); |
| 5450 | 2133 VERIFY(nvlist_add_nvlist_array(spa->spa_spares.sav_config, |
| 2082 | 2134 ZPOOL_CONFIG_SPARES, spares, nspares) == 0); |
| 2135 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 2136 spa_load_spares(spa); | |
| 2137 spa_config_exit(spa, FTAG); | |
| 5450 | 2138 spa->spa_spares.sav_sync = B_TRUE; |
| 2139 } | |
| 2140 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, | |
| 2141 &l2cache, &nl2cache) == 0) { | |
| 2142 if (spa->spa_l2cache.sav_config) | |
| 2143 VERIFY(nvlist_remove(spa->spa_l2cache.sav_config, | |
| 2144 ZPOOL_CONFIG_L2CACHE, DATA_TYPE_NVLIST_ARRAY) == 0); | |
| 2145 else | |
| 2146 VERIFY(nvlist_alloc(&spa->spa_l2cache.sav_config, | |
| 2147 NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
| 2148 VERIFY(nvlist_add_nvlist_array(spa->spa_l2cache.sav_config, | |
| 2149 ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache) == 0); | |
| 2150 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 2151 spa_load_l2cache(spa); | |
| 2152 spa_config_exit(spa, FTAG); | |
| 2153 spa->spa_l2cache.sav_sync = B_TRUE; | |
| 2082 | 2154 } |
| 2155 | |
|
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|
2156 if (spa_mode & FWRITE) { |
|
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|
2157 /* |
|
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2158 * Update the config cache to include the newly-imported pool. |
|
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2159 */ |
| 6423 | 2160 spa_config_update_common(spa, SPA_CONFIG_UPDATE_POOL, isroot); |
|
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2161 } |
|
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2162 |
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2163 spa->spa_import_faulted = B_FALSE; |
| 4451 | 2164 mutex_exit(&spa_namespace_lock); |
| 2165 | |
| 789 | 2166 return (0); |
| 2167 } | |
| 2168 | |
| 6423 | 2169 #ifdef _KERNEL |
| 2170 /* | |
| 2171 * Build a "root" vdev for a top level vdev read in from a rootpool | |
| 2172 * device label. | |
| 2173 */ | |
| 2174 static void | |
| 2175 spa_build_rootpool_config(nvlist_t *config) | |
| 2176 { | |
| 2177 nvlist_t *nvtop, *nvroot; | |
| 2178 uint64_t pgid; | |
| 2179 | |
| 2180 /* | |
| 2181 * Add this top-level vdev to the child array. | |
| 2182 */ | |
| 2183 VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvtop) | |
| 2184 == 0); | |
| 2185 VERIFY(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &pgid) | |
| 2186 == 0); | |
| 2187 | |
| 2188 /* | |
| 2189 * Put this pool's top-level vdevs into a root vdev. | |
| 2190 */ | |
| 2191 VERIFY(nvlist_alloc(&nvroot, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
| 2192 VERIFY(nvlist_add_string(nvroot, ZPOOL_CONFIG_TYPE, VDEV_TYPE_ROOT) | |
| 2193 == 0); | |
| 2194 VERIFY(nvlist_add_uint64(nvroot, ZPOOL_CONFIG_ID, 0ULL) == 0); | |
| 2195 VERIFY(nvlist_add_uint64(nvroot, ZPOOL_CONFIG_GUID, pgid) == 0); | |
| 2196 VERIFY(nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN, | |
| 2197 &nvtop, 1) == 0); | |
| 2198 | |
| 2199 /* | |
| 2200 * Replace the existing vdev_tree with the new root vdev in | |
| 2201 * this pool's configuration (remove the old, add the new). | |
| 2202 */ | |
| 2203 VERIFY(nvlist_add_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, nvroot) == 0); | |
| 2204 nvlist_free(nvroot); | |
| 2205 } | |
| 2206 | |
| 2207 /* | |
| 2208 * Get the root pool information from the root disk, then import the root pool | |
| 2209 * during the system boot up time. | |
| 2210 */ | |
|
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|
2211 extern nvlist_t *vdev_disk_read_rootlabel(char *, char *); |
|
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2212 |
|
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|
2213 int |
|
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|
2214 spa_check_rootconf(char *devpath, char *devid, nvlist_t **bestconf, |
| 6423 | 2215 uint64_t *besttxg) |
| 2216 { | |
| 2217 nvlist_t *config; | |
| 2218 uint64_t txg; | |
| 2219 | |
|
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2220 if ((config = vdev_disk_read_rootlabel(devpath, devid)) == NULL) |
|
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|
2221 return (-1); |
| 6423 | 2222 |
| 2223 VERIFY(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG, &txg) == 0); | |
| 2224 | |
|
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|
2225 if (bestconf != NULL) |
| 6423 | 2226 *bestconf = config; |
|
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2227 *besttxg = txg; |
|
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|
2228 return (0); |
| 6423 | 2229 } |
| 2230 | |
| 2231 boolean_t | |
| 2232 spa_rootdev_validate(nvlist_t *nv) | |
| 2233 { | |
| 2234 uint64_t ival; | |
| 2235 | |
| 2236 if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_OFFLINE, &ival) == 0 || | |
| 2237 nvlist_lookup_uint64(nv, ZPOOL_CONFIG_FAULTED, &ival) == 0 || | |
| 2238 nvlist_lookup_uint64(nv, ZPOOL_CONFIG_REMOVED, &ival) == 0) | |
| 2239 return (B_FALSE); | |
| 2240 | |
| 2241 return (B_TRUE); | |
| 2242 } | |
| 2243 | |
|
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2244 |
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|
2245 /* |
|
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|
2246 * Given the boot device's physical path or devid, check if the device |
|
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2247 * is in a valid state. If so, return the configuration from the vdev |
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|
2248 * label. |
|
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2249 */ |
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|
2250 int |
|
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|
2251 spa_get_rootconf(char *devpath, char *devid, nvlist_t **bestconf) |
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|
2252 { |
|
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|
2253 nvlist_t *conf = NULL; |
|
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|
2254 uint64_t txg = 0; |
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|
2255 nvlist_t *nvtop, **child; |
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2256 char *type; |
|
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|
2257 char *bootpath = NULL; |
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|
2258 uint_t children, c; |
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|
2259 char *tmp; |
|
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|
2260 |
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2261 if (devpath && ((tmp = strchr(devpath, ' ')) != NULL)) |
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|
2262 *tmp = '\0'; |
|
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2263 if (spa_check_rootconf(devpath, devid, &conf, &txg) < 0) { |
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2264 cmn_err(CE_NOTE, "error reading device label"); |
|
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|
2265 nvlist_free(conf); |
|
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|
2266 return (EINVAL); |
|
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|
2267 } |
|
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2268 if (txg == 0) { |
|
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2269 cmn_err(CE_NOTE, "this device is detached"); |
|
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|
2270 nvlist_free(conf); |
|
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|
2271 return (EINVAL); |
|
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|
2272 } |
|
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2273 |
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|
2274 VERIFY(nvlist_lookup_nvlist(conf, ZPOOL_CONFIG_VDEV_TREE, |
|
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|
2275 &nvtop) == 0); |
|
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|
2276 VERIFY(nvlist_lookup_string(nvtop, ZPOOL_CONFIG_TYPE, &type) == 0); |
|
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2277 |
|
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2278 if (strcmp(type, VDEV_TYPE_DISK) == 0) { |
|
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2279 if (spa_rootdev_validate(nvtop)) { |
|
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|
2280 goto out; |
|
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|
2281 } else { |
|
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|
2282 nvlist_free(conf); |
|
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|
2283 return (EINVAL); |
|
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|
2284 } |
|
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|
2285 } |
|
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|
2286 |
|
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|
2287 ASSERT(strcmp(type, VDEV_TYPE_MIRROR) == 0); |
|
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|
2288 |
|
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2289 VERIFY(nvlist_lookup_nvlist_array(nvtop, ZPOOL_CONFIG_CHILDREN, |
|
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2290 &child, &children) == 0); |
|
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2291 |
|
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2292 /* |
|
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2293 * Go thru vdevs in the mirror to see if the given device |
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2294 * has the most recent txg. Only the device with the most |
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2295 * recent txg has valid information and should be booted. |
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2296 */ |
|
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2297 for (c = 0; c < children; c++) { |
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2298 char *cdevid, *cpath; |
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2299 uint64_t tmptxg; |
|
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|
2300 |
|
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2301 if (nvlist_lookup_string(child[c], ZPOOL_CONFIG_PHYS_PATH, |
|
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2302 &cpath) != 0) |
|
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2303 return (EINVAL); |
|
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2304 if (nvlist_lookup_string(child[c], ZPOOL_CONFIG_DEVID, |
|
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2305 &cdevid) != 0) |
|
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2306 return (EINVAL); |
|
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|
2307 if ((spa_check_rootconf(cpath, cdevid, NULL, |
|
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2308 &tmptxg) == 0) && (tmptxg > txg)) { |
|
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2309 txg = tmptxg; |
|
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2310 VERIFY(nvlist_lookup_string(child[c], |
|
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2311 ZPOOL_CONFIG_PATH, &bootpath) == 0); |
|
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2312 } |
|
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2313 } |
|
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2314 |
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2315 /* Does the best device match the one we've booted from? */ |
|
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|
2316 if (bootpath) { |
|
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|
2317 cmn_err(CE_NOTE, "try booting from '%s'", bootpath); |
|
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|
2318 return (EINVAL); |
|
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|
2319 } |
|
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|
2320 out: |
|
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|
2321 *bestconf = conf; |
|
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|
2322 return (0); |
|
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2323 } |
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2324 |
| 6423 | 2325 /* |
| 2326 * Import a root pool. | |
| 2327 * | |
|
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2328 * For x86. devpath_list will consist of devid and/or physpath name of |
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2329 * the vdev (e.g. "id1,sd@SSEAGATE..." or "/pci@1f,0/ide@d/disk@0,0:a"). |
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2330 * The GRUB "findroot" command will return the vdev we should boot. |
| 6423 | 2331 * |
| 2332 * For Sparc, devpath_list consists the physpath name of the booting device | |
| 2333 * no matter the rootpool is a single device pool or a mirrored pool. | |
| 2334 * e.g. | |
| 2335 * "/pci@1f,0/ide@d/disk@0,0:a" | |
| 2336 */ | |
| 2337 int | |
|
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2338 spa_import_rootpool(char *devpath, char *devid) |
| 6423 | 2339 { |
| 2340 nvlist_t *conf = NULL; | |
| 2341 char *pname; | |
| 2342 int error; | |
| 2343 | |
| 2344 /* | |
| 2345 * Get the vdev pathname and configuation from the most | |
| 2346 * recently updated vdev (highest txg). | |
| 2347 */ | |
|
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2348 if (error = spa_get_rootconf(devpath, devid, &conf)) |
| 6423 | 2349 goto msg_out; |
| 2350 | |
| 2351 /* | |
| 2352 * Add type "root" vdev to the config. | |
| 2353 */ | |
| 2354 spa_build_rootpool_config(conf); | |
| 2355 | |
| 2356 VERIFY(nvlist_lookup_string(conf, ZPOOL_CONFIG_POOL_NAME, &pname) == 0); | |
| 2357 | |
|
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2358 /* |
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2359 * We specify 'allowfaulted' for this to be treated like spa_open() |
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2360 * instead of spa_import(). This prevents us from marking vdevs as |
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2361 * persistently unavailable, and generates FMA ereports as if it were a |
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2362 * pool open, not import. |
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2363 */ |
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2364 error = spa_import_common(pname, conf, NULL, B_TRUE, B_TRUE); |
| 6423 | 2365 if (error == EEXIST) |
| 2366 error = 0; | |
| 2367 | |
| 2368 nvlist_free(conf); | |
| 2369 return (error); | |
| 2370 | |
| 2371 msg_out: | |
|
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2372 cmn_err(CE_NOTE, "\n" |
| 6423 | 2373 " *************************************************** \n" |
| 2374 " * This device is not bootable! * \n" | |
| 2375 " * It is either offlined or detached or faulted. * \n" | |
| 2376 " * Please try to boot from a different device. * \n" | |
|
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2377 " *************************************************** "); |
| 6423 | 2378 |
| 2379 return (error); | |
| 2380 } | |
| 2381 #endif | |
| 2382 | |
| 2383 /* | |
| 2384 * Import a non-root pool into the system. | |
| 2385 */ | |
| 2386 int | |
| 2387 spa_import(const char *pool, nvlist_t *config, nvlist_t *props) | |
| 2388 { | |
|
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2389 return (spa_import_common(pool, config, props, B_FALSE, B_FALSE)); |
| 6423 | 2390 } |
| 2391 | |
|
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2392 int |
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2393 spa_import_faulted(const char *pool, nvlist_t *config, nvlist_t *props) |
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2394 { |
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2395 return (spa_import_common(pool, config, props, B_FALSE, B_TRUE)); |
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2396 } |
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2397 |
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2398 |
| 789 | 2399 /* |
| 2400 * This (illegal) pool name is used when temporarily importing a spa_t in order | |
| 2401 * to get the vdev stats associated with the imported devices. | |
| 2402 */ | |
| 2403 #define TRYIMPORT_NAME "$import" | |
| 2404 | |
| 2405 nvlist_t * | |
| 2406 spa_tryimport(nvlist_t *tryconfig) | |
| 2407 { | |
| 2408 nvlist_t *config = NULL; | |
| 2409 char *poolname; | |
| 2410 spa_t *spa; | |
| 2411 uint64_t state; | |
| 2412 | |
| 2413 if (nvlist_lookup_string(tryconfig, ZPOOL_CONFIG_POOL_NAME, &poolname)) | |
| 2414 return (NULL); | |
| 2415 | |
| 2416 if (nvlist_lookup_uint64(tryconfig, ZPOOL_CONFIG_POOL_STATE, &state)) | |
| 2417 return (NULL); | |
| 2418 | |
|
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2419 /* |
|
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2420 * Create and initialize the spa structure. |
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2421 */ |
| 789 | 2422 mutex_enter(&spa_namespace_lock); |
|
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2423 spa = spa_add(TRYIMPORT_NAME, NULL); |
| 789 | 2424 spa_activate(spa); |
| 2425 | |
| 2426 /* | |
|
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2427 * Pass off the heavy lifting to spa_load(). |
| 1732 | 2428 * Pass TRUE for mosconfig because the user-supplied config |
| 2429 * is actually the one to trust when doing an import. | |
| 789 | 2430 */ |
| 1732 | 2431 (void) spa_load(spa, tryconfig, SPA_LOAD_TRYIMPORT, B_TRUE); |
| 789 | 2432 |
| 2433 /* | |
| 2434 * If 'tryconfig' was at least parsable, return the current config. | |
| 2435 */ | |
| 2436 if (spa->spa_root_vdev != NULL) { | |
|
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2437 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 2438 config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); |
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2439 spa_config_exit(spa, FTAG); |
| 789 | 2440 VERIFY(nvlist_add_string(config, ZPOOL_CONFIG_POOL_NAME, |
| 2441 poolname) == 0); | |
| 2442 VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_POOL_STATE, | |
| 2443 state) == 0); | |
|
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2444 VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_TIMESTAMP, |
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2445 spa->spa_uberblock.ub_timestamp) == 0); |
| 2082 | 2446 |
| 2447 /* | |
| 6423 | 2448 * If the bootfs property exists on this pool then we |
| 2449 * copy it out so that external consumers can tell which | |
| 2450 * pools are bootable. | |
| 2451 */ | |
| 2452 if (spa->spa_bootfs) { | |
| 2453 char *tmpname = kmem_alloc(MAXPATHLEN, KM_SLEEP); | |
| 2454 | |
| 2455 /* | |
| 2456 * We have to play games with the name since the | |
| 2457 * pool was opened as TRYIMPORT_NAME. | |
| 2458 */ | |
| 2459 if (dsl_dsobj_to_dsname(spa->spa_name, | |
| 2460 spa->spa_bootfs, tmpname) == 0) { | |
| 2461 char *cp; | |
| 2462 char *dsname = kmem_alloc(MAXPATHLEN, KM_SLEEP); | |
| 2463 | |
| 2464 cp = strchr(tmpname, '/'); | |
| 2465 if (cp == NULL) { | |
| 2466 (void) strlcpy(dsname, tmpname, | |
| 2467 MAXPATHLEN); | |
| 2468 } else { | |
| 2469 (void) snprintf(dsname, MAXPATHLEN, | |
| 2470 "%s/%s", poolname, ++cp); | |
| 2471 } | |
| 2472 VERIFY(nvlist_add_string(config, | |
| 2473 ZPOOL_CONFIG_BOOTFS, dsname) == 0); | |
| 2474 kmem_free(dsname, MAXPATHLEN); | |
| 2475 } | |
| 2476 kmem_free(tmpname, MAXPATHLEN); | |
| 2477 } | |
| 2478 | |
| 2479 /* | |
| 5450 | 2480 * Add the list of hot spares and level 2 cache devices. |
| 2082 | 2481 */ |
| 2482 spa_add_spares(spa, config); | |
| 5450 | 2483 spa_add_l2cache(spa, config); |
| 789 | 2484 } |
| 2485 | |
| 2486 spa_unload(spa); | |
| 2487 spa_deactivate(spa); | |
| 2488 spa_remove(spa); | |
| 2489 mutex_exit(&spa_namespace_lock); | |
| 2490 | |
| 2491 return (config); | |
| 2492 } | |
| 2493 | |
| 2494 /* | |
| 2495 * Pool export/destroy | |
| 2496 * | |
| 2497 * The act of destroying or exporting a pool is very simple. We make sure there | |
| 2498 * is no more pending I/O and any references to the pool are gone. Then, we | |
| 2499 * update the pool state and sync all the labels to disk, removing the | |
| 2500 * configuration from the cache afterwards. | |
| 2501 */ | |
| 2502 static int | |
|
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2503 spa_export_common(char *pool, int new_state, nvlist_t **oldconfig, |
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2504 boolean_t force) |
| 789 | 2505 { |
| 2506 spa_t *spa; | |
| 2507 | |
|
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2508 if (oldconfig) |
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2509 *oldconfig = NULL; |
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2510 |
| 789 | 2511 if (!(spa_mode & FWRITE)) |
| 2512 return (EROFS); | |
| 2513 | |
| 2514 mutex_enter(&spa_namespace_lock); | |
| 2515 if ((spa = spa_lookup(pool)) == NULL) { | |
| 2516 mutex_exit(&spa_namespace_lock); | |
| 2517 return (ENOENT); | |
| 2518 } | |
| 2519 | |
| 2520 /* | |
| 1544 | 2521 * Put a hold on the pool, drop the namespace lock, stop async tasks, |
| 2522 * reacquire the namespace lock, and see if we can export. | |
| 2523 */ | |
| 2524 spa_open_ref(spa, FTAG); | |
| 2525 mutex_exit(&spa_namespace_lock); | |
| 2526 spa_async_suspend(spa); | |
| 2527 mutex_enter(&spa_namespace_lock); | |
| 2528 spa_close(spa, FTAG); | |
| 2529 | |
| 2530 /* | |
| 789 | 2531 * The pool will be in core if it's openable, |
| 2532 * in which case we can modify its state. | |
| 2533 */ | |
| 2534 if (spa->spa_state != POOL_STATE_UNINITIALIZED && spa->spa_sync_on) { | |
| 2535 /* | |
| 2536 * Objsets may be open only because they're dirty, so we | |
| 2537 * have to force it to sync before checking spa_refcnt. | |
| 2538 */ | |
| 2539 txg_wait_synced(spa->spa_dsl_pool, 0); | |
| 2540 | |
| 1544 | 2541 /* |
| 2542 * A pool cannot be exported or destroyed if there are active | |
| 2543 * references. If we are resetting a pool, allow references by | |
| 2544 * fault injection handlers. | |
| 2545 */ | |
| 2546 if (!spa_refcount_zero(spa) || | |
| 2547 (spa->spa_inject_ref != 0 && | |
| 2548 new_state != POOL_STATE_UNINITIALIZED)) { | |
| 2549 spa_async_resume(spa); | |
| 789 | 2550 mutex_exit(&spa_namespace_lock); |
| 2551 return (EBUSY); | |
| 2552 } | |
| 2553 | |
| 2554 /* | |
|
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2555 * A pool cannot be exported if it has an active shared spare. |
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2556 * This is to prevent other pools stealing the active spare |
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2557 * from an exported pool. At user's own will, such pool can |
|
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2558 * be forcedly exported. |
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2559 */ |
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2560 if (!force && new_state == POOL_STATE_EXPORTED && |
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2561 spa_has_active_shared_spare(spa)) { |
|
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2562 spa_async_resume(spa); |
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2563 mutex_exit(&spa_namespace_lock); |
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2564 return (EXDEV); |
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2565 } |
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2566 |
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2567 /* |
| 789 | 2568 * We want this to be reflected on every label, |
| 2569 * so mark them all dirty. spa_unload() will do the | |
| 2570 * final sync that pushes these changes out. | |
| 2571 */ | |
| 1544 | 2572 if (new_state != POOL_STATE_UNINITIALIZED) { |
|
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2573 spa_config_enter(spa, RW_WRITER, FTAG); |
| 1544 | 2574 spa->spa_state = new_state; |
|
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2575 spa->spa_final_txg = spa_last_synced_txg(spa) + 1; |
| 1544 | 2576 vdev_config_dirty(spa->spa_root_vdev); |
|
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2577 spa_config_exit(spa, FTAG); |
| 1544 | 2578 } |
| 789 | 2579 } |
| 2580 | |
| 4451 | 2581 spa_event_notify(spa, NULL, ESC_ZFS_POOL_DESTROY); |
| 2582 | |
| 789 | 2583 if (spa->spa_state != POOL_STATE_UNINITIALIZED) { |
| 2584 spa_unload(spa); | |
| 2585 spa_deactivate(spa); | |
| 2586 } | |
| 2587 | |
|
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2588 if (oldconfig && spa->spa_config) |
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2589 VERIFY(nvlist_dup(spa->spa_config, oldconfig, 0) == 0); |
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2590 |
| 1544 | 2591 if (new_state != POOL_STATE_UNINITIALIZED) { |
|
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2592 spa_config_sync(spa, B_TRUE, B_TRUE); |
| 1544 | 2593 spa_remove(spa); |
| 2594 } | |
| 789 | 2595 mutex_exit(&spa_namespace_lock); |
| 2596 | |
| 2597 return (0); | |
| 2598 } | |
| 2599 | |
| 2600 /* | |
| 2601 * Destroy a storage pool. | |
| 2602 */ | |
| 2603 int | |
| 2604 spa_destroy(char *pool) | |
| 2605 { | |
|
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2606 return (spa_export_common(pool, POOL_STATE_DESTROYED, NULL, B_FALSE)); |
| 789 | 2607 } |
| 2608 | |
| 2609 /* | |
| 2610 * Export a storage pool. | |
| 2611 */ | |
| 2612 int | |
|
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2613 spa_export(char *pool, nvlist_t **oldconfig, boolean_t force) |
| 789 | 2614 { |
|
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2615 return (spa_export_common(pool, POOL_STATE_EXPORTED, oldconfig, force)); |
| 789 | 2616 } |
| 2617 | |
| 2618 /* | |
| 1544 | 2619 * Similar to spa_export(), this unloads the spa_t without actually removing it |
| 2620 * from the namespace in any way. | |
| 2621 */ | |
| 2622 int | |
| 2623 spa_reset(char *pool) | |
| 2624 { | |
|
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2625 return (spa_export_common(pool, POOL_STATE_UNINITIALIZED, NULL, |
|
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2626 B_FALSE)); |
| 1544 | 2627 } |
| 2628 | |
| 2629 /* | |
| 789 | 2630 * ========================================================================== |
| 2631 * Device manipulation | |
| 2632 * ========================================================================== | |
| 2633 */ | |
| 2634 | |
| 2635 /* | |
| 4527 | 2636 * Add a device to a storage pool. |
| 789 | 2637 */ |
| 2638 int | |
| 2639 spa_vdev_add(spa_t *spa, nvlist_t *nvroot) | |
| 2640 { | |
| 2641 uint64_t txg; | |
|
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2642 int c, error; |
| 789 | 2643 vdev_t *rvd = spa->spa_root_vdev; |
|
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2644 vdev_t *vd, *tvd; |
| 5450 | 2645 nvlist_t **spares, **l2cache; |
| 2646 uint_t nspares, nl2cache; | |
| 789 | 2647 |
| 2648 txg = spa_vdev_enter(spa); | |
| 2649 | |
| 2082 | 2650 if ((error = spa_config_parse(spa, &vd, nvroot, NULL, 0, |
| 2651 VDEV_ALLOC_ADD)) != 0) | |
| 2652 return (spa_vdev_exit(spa, NULL, txg, error)); | |
| 2653 | |
|
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2654 spa->spa_pending_vdev = vd; |
| 789 | 2655 |
| 5450 | 2656 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, &spares, |
| 2657 &nspares) != 0) | |
| 2082 | 2658 nspares = 0; |
| 2659 | |
| 5450 | 2660 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, &l2cache, |
| 2661 &nl2cache) != 0) | |
| 2662 nl2cache = 0; | |
| 2663 | |
| 2664 if (vd->vdev_children == 0 && nspares == 0 && nl2cache == 0) { | |
|
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2665 spa->spa_pending_vdev = NULL; |
| 2082 | 2666 return (spa_vdev_exit(spa, vd, txg, EINVAL)); |
|
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|
2667 } |
| 2082 | 2668 |
| 2669 if (vd->vdev_children != 0) { | |
|
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2670 if ((error = vdev_create(vd, txg, B_FALSE)) != 0) { |
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2671 spa->spa_pending_vdev = NULL; |
| 2082 | 2672 return (spa_vdev_exit(spa, vd, txg, error)); |
| 2673 } | |
| 2674 } | |
| 2675 | |
|
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2676 /* |
| 5450 | 2677 * We must validate the spares and l2cache devices after checking the |
| 2678 * children. Otherwise, vdev_inuse() will blindly overwrite the spare. | |
|
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2679 */ |
| 5450 | 2680 if ((error = spa_validate_aux(spa, nvroot, txg, VDEV_ALLOC_ADD)) != 0) { |
|
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2681 spa->spa_pending_vdev = NULL; |
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2682 return (spa_vdev_exit(spa, vd, txg, error)); |
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2683 } |
|
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2684 |
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2685 spa->spa_pending_vdev = NULL; |
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2686 |
|
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2687 /* |
|
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2688 * Transfer each new top-level vdev from vd to rvd. |
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2689 */ |
|
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2690 for (c = 0; c < vd->vdev_children; c++) { |
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2691 tvd = vd->vdev_child[c]; |
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2692 vdev_remove_child(vd, tvd); |
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2693 tvd->vdev_id = rvd->vdev_children; |
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2694 vdev_add_child(rvd, tvd); |
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2695 vdev_config_dirty(tvd); |
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2696 } |
|
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|
2697 |
| 2082 | 2698 if (nspares != 0) { |
| 5450 | 2699 spa_set_aux_vdevs(&spa->spa_spares, spares, nspares, |
| 2700 ZPOOL_CONFIG_SPARES); | |
| 2082 | 2701 spa_load_spares(spa); |
| 5450 | 2702 spa->spa_spares.sav_sync = B_TRUE; |
| 2703 } | |
| 2704 | |
| 2705 if (nl2cache != 0) { | |
| 2706 spa_set_aux_vdevs(&spa->spa_l2cache, l2cache, nl2cache, | |
| 2707 ZPOOL_CONFIG_L2CACHE); | |
| 2708 spa_load_l2cache(spa); | |
| 2709 spa->spa_l2cache.sav_sync = B_TRUE; | |
| 789 | 2710 } |
| 2711 | |
| 2712 /* | |
|
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2713 * We have to be careful when adding new vdevs to an existing pool. |
|
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2714 * If other threads start allocating from these vdevs before we |
|
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|
2715 * sync the config cache, and we lose power, then upon reboot we may |
|
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|
2716 * fail to open the pool because there are DVAs that the config cache |
|
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|
2717 * can't translate. Therefore, we first add the vdevs without |
|
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|
2718 * initializing metaslabs; sync the config cache (via spa_vdev_exit()); |
|
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2719 * and then let spa_config_update() initialize the new metaslabs. |
|
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|
2720 * |
|
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|
2721 * spa_load() checks for added-but-not-initialized vdevs, so that |
|
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2722 * if we lose power at any point in this sequence, the remaining |
|
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2723 * steps will be completed the next time we load the pool. |
| 789 | 2724 */ |
|
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2725 (void) spa_vdev_exit(spa, vd, txg, 0); |
|
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|
2726 |
|
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2727 mutex_enter(&spa_namespace_lock); |
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2728 spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); |
|
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2729 mutex_exit(&spa_namespace_lock); |
| 789 | 2730 |
|
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2731 return (0); |
| 789 | 2732 } |
| 2733 | |
| 2734 /* | |
| 2735 * Attach a device to a mirror. The arguments are the path to any device | |
| 2736 * in the mirror, and the nvroot for the new device. If the path specifies | |
| 2737 * a device that is not mirrored, we automatically insert the mirror vdev. | |
| 2738 * | |
| 2739 * If 'replacing' is specified, the new device is intended to replace the | |
| 2740 * existing device; in this case the two devices are made into their own | |
| 4451 | 2741 * mirror using the 'replacing' vdev, which is functionally identical to |
| 789 | 2742 * the mirror vdev (it actually reuses all the same ops) but has a few |
| 2743 * extra rules: you can't attach to it after it's been created, and upon | |
| 2744 * completion of resilvering, the first disk (the one being replaced) | |
| 2745 * is automatically detached. | |
| 2746 */ | |
| 2747 int | |
| 1544 | 2748 spa_vdev_attach(spa_t *spa, uint64_t guid, nvlist_t *nvroot, int replacing) |
| 789 | 2749 { |
| 2750 uint64_t txg, open_txg; | |
| 2751 int error; | |
| 2752 vdev_t *rvd = spa->spa_root_vdev; | |
| 2753 vdev_t *oldvd, *newvd, *newrootvd, *pvd, *tvd; | |
| 2082 | 2754 vdev_ops_t *pvops; |
| 4527 | 2755 int is_log; |
| 789 | 2756 |
| 2757 txg = spa_vdev_enter(spa); | |
| 2758 | |
|
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2759 oldvd = spa_lookup_by_guid(spa, guid, B_FALSE); |
| 789 | 2760 |
| 2761 if (oldvd == NULL) | |
| 2762 return (spa_vdev_exit(spa, NULL, txg, ENODEV)); | |
| 2763 | |
|
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2764 if (!oldvd->vdev_ops->vdev_op_leaf) |
|
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2765 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
|
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2766 |
| 789 | 2767 pvd = oldvd->vdev_parent; |
| 2768 | |
| 2082 | 2769 if ((error = spa_config_parse(spa, &newrootvd, nvroot, NULL, 0, |
| 4451 | 2770 VDEV_ALLOC_ADD)) != 0) |
| 2771 return (spa_vdev_exit(spa, NULL, txg, EINVAL)); | |
| 2772 | |
| 2773 if (newrootvd->vdev_children != 1) | |
| 789 | 2774 return (spa_vdev_exit(spa, newrootvd, txg, EINVAL)); |
| 2775 | |
| 2776 newvd = newrootvd->vdev_child[0]; | |
| 2777 | |
| 2778 if (!newvd->vdev_ops->vdev_op_leaf) | |
| 2779 return (spa_vdev_exit(spa, newrootvd, txg, EINVAL)); | |
| 2780 | |
| 2082 | 2781 if ((error = vdev_create(newrootvd, txg, replacing)) != 0) |
| 789 | 2782 return (spa_vdev_exit(spa, newrootvd, txg, error)); |
| 2783 | |
| 4527 | 2784 /* |
| 2785 * Spares can't replace logs | |
| 2786 */ | |
| 2787 is_log = oldvd->vdev_islog; | |
| 2788 if (is_log && newvd->vdev_isspare) | |
| 2789 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
| 2790 | |
| 2082 | 2791 if (!replacing) { |
| 2792 /* | |
| 2793 * For attach, the only allowable parent is a mirror or the root | |
| 2794 * vdev. | |
| 2795 */ | |
| 2796 if (pvd->vdev_ops != &vdev_mirror_ops && | |
| 2797 pvd->vdev_ops != &vdev_root_ops) | |
| 2798 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
| 2799 | |
| 2800 pvops = &vdev_mirror_ops; | |
| 2801 } else { | |
| 2802 /* | |
| 2803 * Active hot spares can only be replaced by inactive hot | |
| 2804 * spares. | |
| 2805 */ | |
| 2806 if (pvd->vdev_ops == &vdev_spare_ops && | |
| 2807 pvd->vdev_child[1] == oldvd && | |
| 2808 !spa_has_spare(spa, newvd->vdev_guid)) | |
| 2809 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
| 2810 | |
| 2811 /* | |
| 2812 * If the source is a hot spare, and the parent isn't already a | |
| 2813 * spare, then we want to create a new hot spare. Otherwise, we | |
|
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2814 * want to create a replacing vdev. The user is not allowed to |
|
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2815 * attach to a spared vdev child unless the 'isspare' state is |
|
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2816 * the same (spare replaces spare, non-spare replaces |
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2817 * non-spare). |
| 2082 | 2818 */ |
| 2819 if (pvd->vdev_ops == &vdev_replacing_ops) | |
| 2820 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
|
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2821 else if (pvd->vdev_ops == &vdev_spare_ops && |
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2822 newvd->vdev_isspare != oldvd->vdev_isspare) |
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2823 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
| 2082 | 2824 else if (pvd->vdev_ops != &vdev_spare_ops && |
| 2825 newvd->vdev_isspare) | |
| 2826 pvops = &vdev_spare_ops; | |
| 2827 else | |
| 2828 pvops = &vdev_replacing_ops; | |
| 2829 } | |
| 2830 | |
|
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2831 /* |
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2832 * Compare the new device size with the replaceable/attachable |
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2833 * device size. |
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2834 */ |
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2835 if (newvd->vdev_psize < vdev_get_rsize(oldvd)) |
| 789 | 2836 return (spa_vdev_exit(spa, newrootvd, txg, EOVERFLOW)); |
| 2837 | |
| 1732 | 2838 /* |
| 2839 * The new device cannot have a higher alignment requirement | |
| 2840 * than the top-level vdev. | |
| 2841 */ | |
| 2842 if (newvd->vdev_ashift > oldvd->vdev_top->vdev_ashift) | |
| 789 | 2843 return (spa_vdev_exit(spa, newrootvd, txg, EDOM)); |
| 2844 | |
| 2845 /* | |
| 2846 * If this is an in-place replacement, update oldvd's path and devid | |
| 2847 * to make it distinguishable from newvd, and unopenable from now on. | |
| 2848 */ | |
| 2849 if (strcmp(oldvd->vdev_path, newvd->vdev_path) == 0) { | |
| 2850 spa_strfree(oldvd->vdev_path); | |
| 2851 oldvd->vdev_path = kmem_alloc(strlen(newvd->vdev_path) + 5, | |
| 2852 KM_SLEEP); | |
| 2853 (void) sprintf(oldvd->vdev_path, "%s/%s", | |
| 2854 newvd->vdev_path, "old"); | |
| 2855 if (oldvd->vdev_devid != NULL) { | |
| 2856 spa_strfree(oldvd->vdev_devid); | |
| 2857 oldvd->vdev_devid = NULL; | |
| 2858 } | |
| 2859 } | |
| 2860 | |
| 2861 /* | |
| 2082 | 2862 * If the parent is not a mirror, or if we're replacing, insert the new |
| 2863 * mirror/replacing/spare vdev above oldvd. | |
| 789 | 2864 */ |
| 2865 if (pvd->vdev_ops != pvops) | |
| 2866 pvd = vdev_add_parent(oldvd, pvops); | |
| 2867 | |
| 2868 ASSERT(pvd->vdev_top->vdev_parent == rvd); | |
| 2869 ASSERT(pvd->vdev_ops == pvops); | |
| 2870 ASSERT(oldvd->vdev_parent == pvd); | |
| 2871 | |
| 2872 /* | |
| 2873 * Extract the new device from its root and add it to pvd. | |
| 2874 */ | |
| 2875 vdev_remove_child(newrootvd, newvd); | |
| 2876 newvd->vdev_id = pvd->vdev_children; | |
| 2877 vdev_add_child(pvd, newvd); | |
| 2878 | |
| 1544 | 2879 /* |
| 2880 * If newvd is smaller than oldvd, but larger than its rsize, | |
| 2881 * the addition of newvd may have decreased our parent's asize. | |
| 2882 */ | |
| 2883 pvd->vdev_asize = MIN(pvd->vdev_asize, newvd->vdev_asize); | |
| 2884 | |
| 789 | 2885 tvd = newvd->vdev_top; |
| 2886 ASSERT(pvd->vdev_top == tvd); | |
| 2887 ASSERT(tvd->vdev_parent == rvd); | |
| 2888 | |
| 2889 vdev_config_dirty(tvd); | |
| 2890 | |
| 2891 /* | |
| 2892 * Set newvd's DTL to [TXG_INITIAL, open_txg]. It will propagate | |
| 2893 * upward when spa_vdev_exit() calls vdev_dtl_reassess(). | |
| 2894 */ | |
| 2895 open_txg = txg + TXG_CONCURRENT_STATES - 1; | |
| 2896 | |
| 2897 mutex_enter(&newvd->vdev_dtl_lock); | |
| 2898 space_map_add(&newvd->vdev_dtl_map, TXG_INITIAL, | |
| 2899 open_txg - TXG_INITIAL + 1); | |
| 2900 mutex_exit(&newvd->vdev_dtl_lock); | |
| 2901 | |
|
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2902 if (newvd->vdev_isspare) |
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|
2903 spa_spare_activate(newvd); |
| 1544 | 2904 |
| 789 | 2905 /* |
| 2906 * Mark newvd's DTL dirty in this txg. | |
| 2907 */ | |
| 1732 | 2908 vdev_dirty(tvd, VDD_DTL, newvd, txg); |
| 789 | 2909 |
| 2910 (void) spa_vdev_exit(spa, newrootvd, open_txg, 0); | |
| 2911 | |
| 2912 /* | |
|
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|
2913 * Kick off a resilver to update newvd. |
| 789 | 2914 */ |
|
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|
2915 VERIFY3U(spa_scrub(spa, POOL_SCRUB_RESILVER), ==, 0); |
| 789 | 2916 |
| 2917 return (0); | |
| 2918 } | |
| 2919 | |
| 2920 /* | |
| 2921 * Detach a device from a mirror or replacing vdev. | |
| 2922 * If 'replace_done' is specified, only detach if the parent | |
| 2923 * is a replacing vdev. | |
| 2924 */ | |
| 2925 int | |
| 1544 | 2926 spa_vdev_detach(spa_t *spa, uint64_t guid, int replace_done) |
| 789 | 2927 { |
| 2928 uint64_t txg; | |
| 2929 int c, t, error; | |
| 2930 vdev_t *rvd = spa->spa_root_vdev; | |
| 2931 vdev_t *vd, *pvd, *cvd, *tvd; | |
| 2082 | 2932 boolean_t unspare = B_FALSE; |
| 2933 uint64_t unspare_guid; | |
|
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|
2934 size_t len; |
| 789 | 2935 |
| 2936 txg = spa_vdev_enter(spa); | |
| 2937 | |
|
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|
2938 vd = spa_lookup_by_guid(spa, guid, B_FALSE); |
| 789 | 2939 |
| 2940 if (vd == NULL) | |
| 2941 return (spa_vdev_exit(spa, NULL, txg, ENODEV)); | |
| 2942 | |
|
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|
2943 if (!vd->vdev_ops->vdev_op_leaf) |
|
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|
2944 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
|
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|
2945 |
| 789 | 2946 pvd = vd->vdev_parent; |
| 2947 | |
| 2948 /* | |
| 2949 * If replace_done is specified, only remove this device if it's | |
| 2082 | 2950 * the first child of a replacing vdev. For the 'spare' vdev, either |
| 2951 * disk can be removed. | |
| 789 | 2952 */ |
| 2082 | 2953 if (replace_done) { |
| 2954 if (pvd->vdev_ops == &vdev_replacing_ops) { | |
| 2955 if (vd->vdev_id != 0) | |
| 2956 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
| 2957 } else if (pvd->vdev_ops != &vdev_spare_ops) { | |
| 2958 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
| 2959 } | |
| 2960 } | |
| 2961 | |
| 2962 ASSERT(pvd->vdev_ops != &vdev_spare_ops || | |
| 4577 | 2963 spa_version(spa) >= SPA_VERSION_SPARES); |
| 789 | 2964 |
| 2965 /* | |
| 2082 | 2966 * Only mirror, replacing, and spare vdevs support detach. |
| 789 | 2967 */ |
| 2968 if (pvd->vdev_ops != &vdev_replacing_ops && | |
| 2082 | 2969 pvd->vdev_ops != &vdev_mirror_ops && |
| 2970 pvd->vdev_ops != &vdev_spare_ops) | |
| 789 | 2971 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
| 2972 | |
| 2973 /* | |
| 2974 * If there's only one replica, you can't detach it. | |
| 2975 */ | |
| 2976 if (pvd->vdev_children <= 1) | |
| 2977 return (spa_vdev_exit(spa, NULL, txg, EBUSY)); | |
| 2978 | |
| 2979 /* | |
| 2980 * If all siblings have non-empty DTLs, this device may have the only | |
| 2981 * valid copy of the data, which means we cannot safely detach it. | |
| 2982 * | |
| 2983 * XXX -- as in the vdev_offline() case, we really want a more | |
| 2984 * precise DTL check. | |
| 2985 */ | |
| 2986 for (c = 0; c < pvd->vdev_children; c++) { | |
| 2987 uint64_t dirty; | |
| 2988 | |
| 2989 cvd = pvd->vdev_child[c]; | |
| 2990 if (cvd == vd) | |
| 2991 continue; | |
| 2992 if (vdev_is_dead(cvd)) | |
| 2993 continue; | |
| 2994 mutex_enter(&cvd->vdev_dtl_lock); | |
| 2995 dirty = cvd->vdev_dtl_map.sm_space | | |
| 2996 cvd->vdev_dtl_scrub.sm_space; | |
| 2997 mutex_exit(&cvd->vdev_dtl_lock); | |
| 2998 if (!dirty) | |
| 2999 break; | |
| 3000 } | |
| 2082 | 3001 |
| 3002 /* | |
| 3003 * If we are a replacing or spare vdev, then we can always detach the | |
| 3004 * latter child, as that is how one cancels the operation. | |
| 3005 */ | |
| 3006 if ((pvd->vdev_ops == &vdev_mirror_ops || vd->vdev_id != 1) && | |
| 3007 c == pvd->vdev_children) | |
| 789 | 3008 return (spa_vdev_exit(spa, NULL, txg, EBUSY)); |
| 3009 | |
| 3010 /* | |
|
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|
3011 * If we are detaching the second disk from a replacing vdev, then |
|
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|
3012 * check to see if we changed the original vdev's path to have "/old" |
|
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|
3013 * at the end in spa_vdev_attach(). If so, undo that change now. |
|
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|
3014 */ |
|
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|
3015 if (pvd->vdev_ops == &vdev_replacing_ops && vd->vdev_id == 1 && |
|
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|
3016 pvd->vdev_child[0]->vdev_path != NULL && |
|
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|
3017 pvd->vdev_child[1]->vdev_path != NULL) { |
|
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|
3018 ASSERT(pvd->vdev_child[1] == vd); |
|
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|
3019 cvd = pvd->vdev_child[0]; |
|
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|
3020 len = strlen(vd->vdev_path); |
|
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|
3021 if (strncmp(cvd->vdev_path, vd->vdev_path, len) == 0 && |
|
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|
3022 strcmp(cvd->vdev_path + len, "/old") == 0) { |
|
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|
3023 spa_strfree(cvd->vdev_path); |
|
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|
3024 cvd->vdev_path = spa_strdup(vd->vdev_path); |
|
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|
3025 } |
|
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|
3026 } |
|
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|
3027 |
|
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|
3028 /* |
| 2082 | 3029 * If we are detaching the original disk from a spare, then it implies |
| 3030 * that the spare should become a real disk, and be removed from the | |
| 3031 * active spare list for the pool. | |
| 3032 */ | |
| 3033 if (pvd->vdev_ops == &vdev_spare_ops && | |
| 3034 vd->vdev_id == 0) | |
| 3035 unspare = B_TRUE; | |
| 3036 | |
| 3037 /* | |
| 789 | 3038 * Erase the disk labels so the disk can be used for other things. |
| 3039 * This must be done after all other error cases are handled, | |
| 3040 * but before we disembowel vd (so we can still do I/O to it). | |
| 3041 * But if we can't do it, don't treat the error as fatal -- | |
| 3042 * it may be that the unwritability of the disk is the reason | |
| 3043 * it's being detached! | |
| 3044 */ | |
|
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|
3045 error = vdev_label_init(vd, 0, VDEV_LABEL_REMOVE); |
| 789 | 3046 |
| 3047 /* | |
| 3048 * Remove vd from its parent and compact the parent's children. | |
| 3049 */ | |
| 3050 vdev_remove_child(pvd, vd); | |
| 3051 vdev_compact_children(pvd); | |
| 3052 | |
| 3053 /* | |
| 3054 * Remember one of the remaining children so we can get tvd below. | |
| 3055 */ | |
| 3056 cvd = pvd->vdev_child[0]; | |
| 3057 | |
| 3058 /* | |
| 2082 | 3059 * If we need to remove the remaining child from the list of hot spares, |
| 3060 * do it now, marking the vdev as no longer a spare in the process. We | |
| 3061 * must do this before vdev_remove_parent(), because that can change the | |
| 3062 * GUID if it creates a new toplevel GUID. | |
| 3063 */ | |
| 3064 if (unspare) { | |
| 3065 ASSERT(cvd->vdev_isspare); | |
|
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|
3066 spa_spare_remove(cvd); |
| 2082 | 3067 unspare_guid = cvd->vdev_guid; |
| 3068 } | |
| 3069 | |
| 3070 /* | |
| 789 | 3071 * If the parent mirror/replacing vdev only has one child, |
| 3072 * the parent is no longer needed. Remove it from the tree. | |
| 3073 */ | |
| 3074 if (pvd->vdev_children == 1) | |
| 3075 vdev_remove_parent(cvd); | |
| 3076 | |
| 3077 /* | |
| 3078 * We don't set tvd until now because the parent we just removed | |
| 3079 * may have been the previous top-level vdev. | |
| 3080 */ | |
| 3081 tvd = cvd->vdev_top; | |
| 3082 ASSERT(tvd->vdev_parent == rvd); | |
| 3083 | |
| 3084 /* | |
|
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|
3085 * Reevaluate the parent vdev state. |
| 789 | 3086 */ |
| 4451 | 3087 vdev_propagate_state(cvd); |
| 789 | 3088 |
| 3089 /* | |
|
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|
3090 * If the device we just detached was smaller than the others, it may be |
|
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|
3091 * possible to add metaslabs (i.e. grow the pool). vdev_metaslab_init() |
|
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|
3092 * can't fail because the existing metaslabs are already in core, so |
|
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|
3093 * there's nothing to read from disk. |
| 789 | 3094 */ |
| 1732 | 3095 VERIFY(vdev_metaslab_init(tvd, txg) == 0); |
| 789 | 3096 |
| 3097 vdev_config_dirty(tvd); | |
| 3098 | |
| 3099 /* | |
|
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|
3100 * Mark vd's DTL as dirty in this txg. vdev_dtl_sync() will see that |
|
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|
3101 * vd->vdev_detached is set and free vd's DTL object in syncing context. |
|
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|
3102 * But first make sure we're not on any *other* txg's DTL list, to |
|
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|
3103 * prevent vd from being accessed after it's freed. |
| 789 | 3104 */ |
| 3105 for (t = 0; t < TXG_SIZE; t++) | |
| 3106 (void) txg_list_remove_this(&tvd->vdev_dtl_list, vd, t); | |
| 1732 | 3107 vd->vdev_detached = B_TRUE; |
| 3108 vdev_dirty(tvd, VDD_DTL, vd, txg); | |
| 789 | 3109 |
| 4451 | 3110 spa_event_notify(spa, vd, ESC_ZFS_VDEV_REMOVE); |
| 3111 | |
| 2082 | 3112 error = spa_vdev_exit(spa, vd, txg, 0); |
| 3113 | |
| 3114 /* | |
|
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|
3115 * If this was the removal of the original device in a hot spare vdev, |
|
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|
3116 * then we want to go through and remove the device from the hot spare |
|
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|
3117 * list of every other pool. |
| 2082 | 3118 */ |
| 3119 if (unspare) { | |
| 3120 spa = NULL; | |
| 3121 mutex_enter(&spa_namespace_lock); | |
| 3122 while ((spa = spa_next(spa)) != NULL) { | |
| 3123 if (spa->spa_state != POOL_STATE_ACTIVE) | |
| 3124 continue; | |
| 3125 | |
| 3126 (void) spa_vdev_remove(spa, unspare_guid, B_TRUE); | |
| 3127 } | |
| 3128 mutex_exit(&spa_namespace_lock); | |
| 3129 } | |
| 3130 | |
| 3131 return (error); | |
| 3132 } | |
| 3133 | |
| 3134 /* | |
| 5450 | 3135 * Remove a spares vdev from the nvlist config. |
| 2082 | 3136 */ |
| 5450 | 3137 static int |
| 3138 spa_remove_spares(spa_aux_vdev_t *sav, uint64_t guid, boolean_t unspare, | |
| 3139 nvlist_t **spares, int nspares, vdev_t *vd) | |
| 2082 | 3140 { |
| 5450 | 3141 nvlist_t *nv, **newspares; |
| 3142 int i, j; | |
| 2082 | 3143 |
| 3144 nv = NULL; | |
| 5450 | 3145 for (i = 0; i < nspares; i++) { |
| 3146 uint64_t theguid; | |
| 3147 | |
| 3148 VERIFY(nvlist_lookup_uint64(spares[i], | |
| 3149 ZPOOL_CONFIG_GUID, &theguid) == 0); | |
| 3150 if (theguid == guid) { | |
| 3151 nv = spares[i]; | |
| 3152 break; | |
| 2082 | 3153 } |
| 3154 } | |
| 3155 | |
| 3156 /* | |
| 5450 | 3157 * Only remove the hot spare if it's not currently in use in this pool. |
| 2082 | 3158 */ |
| 5450 | 3159 if (nv == NULL && vd == NULL) |
| 3160 return (ENOENT); | |
| 3161 | |
| 3162 if (nv == NULL && vd != NULL) | |
| 3163 return (ENOTSUP); | |
| 3164 | |
| 3165 if (!unspare && nv != NULL && vd != NULL) | |
| 3166 return (EBUSY); | |
| 2082 | 3167 |
| 3168 if (nspares == 1) { | |
| 3169 newspares = NULL; | |
| 3170 } else { | |
| 3171 newspares = kmem_alloc((nspares - 1) * sizeof (void *), | |
| 3172 KM_SLEEP); | |
| 3173 for (i = 0, j = 0; i < nspares; i++) { | |
| 3174 if (spares[i] != nv) | |
| 3175 VERIFY(nvlist_dup(spares[i], | |
| 3176 &newspares[j++], KM_SLEEP) == 0); | |
| 3177 } | |
| 3178 } | |
| 3179 | |
| 5450 | 3180 VERIFY(nvlist_remove(sav->sav_config, ZPOOL_CONFIG_SPARES, |
| 2082 | 3181 DATA_TYPE_NVLIST_ARRAY) == 0); |
| 5450 | 3182 VERIFY(nvlist_add_nvlist_array(sav->sav_config, |
| 3183 ZPOOL_CONFIG_SPARES, newspares, nspares - 1) == 0); | |
| 2082 | 3184 for (i = 0; i < nspares - 1; i++) |
| 3185 nvlist_free(newspares[i]); | |
| 3186 kmem_free(newspares, (nspares - 1) * sizeof (void *)); | |
| 5450 | 3187 |
| 3188 return (0); | |
| 3189 } | |
| 3190 | |
| 3191 /* | |
| 3192 * Remove an l2cache vdev from the nvlist config. | |
| 3193 */ | |
| 3194 static int | |
| 3195 spa_remove_l2cache(spa_aux_vdev_t *sav, uint64_t guid, nvlist_t **l2cache, | |
| 3196 int nl2cache, vdev_t *vd) | |
| 3197 { | |
| 3198 nvlist_t *nv, **newl2cache; | |
| 3199 int i, j; | |
| 3200 | |
| 3201 nv = NULL; | |
| 3202 for (i = 0; i < nl2cache; i++) { | |
| 3203 uint64_t theguid; | |
| 3204 | |
| 3205 VERIFY(nvlist_lookup_uint64(l2cache[i], | |
| 3206 ZPOOL_CONFIG_GUID, &theguid) == 0); | |
| 3207 if (theguid == guid) { | |
| 3208 nv = l2cache[i]; | |
| 3209 break; | |
| 3210 } | |
| 3211 } | |
| 3212 | |
| 3213 if (vd == NULL) { | |
| 3214 for (i = 0; i < nl2cache; i++) { | |
| 3215 if (sav->sav_vdevs[i]->vdev_guid == guid) { | |
| 3216 vd = sav->sav_vdevs[i]; | |
| 3217 break; | |
| 3218 } | |
| 3219 } | |
| 3220 } | |
| 3221 | |
| 3222 if (nv == NULL && vd == NULL) | |
| 3223 return (ENOENT); | |
| 3224 | |
| 3225 if (nv == NULL && vd != NULL) | |
| 3226 return (ENOTSUP); | |
| 3227 | |
| 3228 if (nl2cache == 1) { | |
| 3229 newl2cache = NULL; | |
| 3230 } else { | |
| 3231 newl2cache = kmem_alloc((nl2cache - 1) * sizeof (void *), | |
| 3232 KM_SLEEP); | |
| 3233 for (i = 0, j = 0; i < nl2cache; i++) { | |
| 3234 if (l2cache[i] != nv) | |
| 3235 VERIFY(nvlist_dup(l2cache[i], | |
| 3236 &newl2cache[j++], KM_SLEEP) == 0); | |
| 3237 } | |
| 3238 } | |
| 3239 | |
| 3240 VERIFY(nvlist_remove(sav->sav_config, ZPOOL_CONFIG_L2CACHE, | |
| 3241 DATA_TYPE_NVLIST_ARRAY) == 0); | |
| 3242 VERIFY(nvlist_add_nvlist_array(sav->sav_config, | |
| 3243 ZPOOL_CONFIG_L2CACHE, newl2cache, nl2cache - 1) == 0); | |
| 3244 for (i = 0; i < nl2cache - 1; i++) | |
| 3245 nvlist_free(newl2cache[i]); | |
| 3246 kmem_free(newl2cache, (nl2cache - 1) * sizeof (void *)); | |
| 3247 | |
| 3248 return (0); | |
| 3249 } | |
| 3250 | |
| 3251 /* | |
| 3252 * Remove a device from the pool. Currently, this supports removing only hot | |
| 3253 * spares and level 2 ARC devices. | |
| 3254 */ | |
| 3255 int | |
| 3256 spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare) | |
| 3257 { | |
| 3258 vdev_t *vd; | |
| 3259 nvlist_t **spares, **l2cache; | |
| 3260 uint_t nspares, nl2cache; | |
| 3261 int error = 0; | |
| 3262 | |
| 3263 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 3264 | |
|
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diff
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|
3265 vd = spa_lookup_by_guid(spa, guid, B_FALSE); |
| 5450 | 3266 |
| 3267 if (spa->spa_spares.sav_vdevs != NULL && | |
| 3268 nvlist_lookup_nvlist_array(spa->spa_spares.sav_config, | |
| 3269 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0) { | |
| 3270 if ((error = spa_remove_spares(&spa->spa_spares, guid, unspare, | |
| 3271 spares, nspares, vd)) != 0) | |
| 3272 goto out; | |
| 3273 spa_load_spares(spa); | |
| 3274 spa->spa_spares.sav_sync = B_TRUE; | |
| 3275 goto out; | |
| 3276 } | |
| 3277 | |
| 3278 if (spa->spa_l2cache.sav_vdevs != NULL && | |
| 3279 nvlist_lookup_nvlist_array(spa->spa_l2cache.sav_config, | |
| 3280 ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0) { | |
| 3281 if ((error = spa_remove_l2cache(&spa->spa_l2cache, guid, | |
| 3282 l2cache, nl2cache, vd)) != 0) | |
| 3283 goto out; | |
| 3284 spa_load_l2cache(spa); | |
| 3285 spa->spa_l2cache.sav_sync = B_TRUE; | |
| 3286 } | |
| 2082 | 3287 |
| 3288 out: | |
| 3289 spa_config_exit(spa, FTAG); | |
| 5450 | 3290 return (error); |
| 789 | 3291 } |
| 3292 | |
| 3293 /* | |
| 4451 | 3294 * Find any device that's done replacing, or a vdev marked 'unspare' that's |
| 3295 * current spared, so we can detach it. | |
| 789 | 3296 */ |
| 1544 | 3297 static vdev_t * |
| 4451 | 3298 spa_vdev_resilver_done_hunt(vdev_t *vd) |
| 789 | 3299 { |
| 1544 | 3300 vdev_t *newvd, *oldvd; |
| 789 | 3301 int c; |
| 3302 | |
| 1544 | 3303 for (c = 0; c < vd->vdev_children; c++) { |
| 4451 | 3304 oldvd = spa_vdev_resilver_done_hunt(vd->vdev_child[c]); |
| 1544 | 3305 if (oldvd != NULL) |
| 3306 return (oldvd); | |
| 3307 } | |
| 789 | 3308 |
| 4451 | 3309 /* |
| 3310 * Check for a completed replacement. | |
| 3311 */ | |
| 789 | 3312 if (vd->vdev_ops == &vdev_replacing_ops && vd->vdev_children == 2) { |
| 1544 | 3313 oldvd = vd->vdev_child[0]; |
| 3314 newvd = vd->vdev_child[1]; | |
| 789 | 3315 |
| 1544 | 3316 mutex_enter(&newvd->vdev_dtl_lock); |
| 3317 if (newvd->vdev_dtl_map.sm_space == 0 && | |
| 3318 newvd->vdev_dtl_scrub.sm_space == 0) { | |
| 3319 mutex_exit(&newvd->vdev_dtl_lock); | |
| 3320 return (oldvd); | |
| 3321 } | |
| 3322 mutex_exit(&newvd->vdev_dtl_lock); | |
| 3323 } | |
| 789 | 3324 |
| 4451 | 3325 /* |
| 3326 * Check for a completed resilver with the 'unspare' flag set. | |
| 3327 */ | |
| 3328 if (vd->vdev_ops == &vdev_spare_ops && vd->vdev_children == 2) { | |
| 3329 newvd = vd->vdev_child[0]; | |
| 3330 oldvd = vd->vdev_child[1]; | |
| 3331 | |
| 3332 mutex_enter(&newvd->vdev_dtl_lock); | |
| 3333 if (newvd->vdev_unspare && | |
| 3334 newvd->vdev_dtl_map.sm_space == 0 && | |
| 3335 newvd->vdev_dtl_scrub.sm_space == 0) { | |
| 3336 newvd->vdev_unspare = 0; | |
| 3337 mutex_exit(&newvd->vdev_dtl_lock); | |
| 3338 return (oldvd); | |
| 3339 } | |
| 3340 mutex_exit(&newvd->vdev_dtl_lock); | |
| 3341 } | |
| 3342 | |
| 1544 | 3343 return (NULL); |
| 789 | 3344 } |
| 3345 | |
| 1544 | 3346 static void |
| 4451 | 3347 spa_vdev_resilver_done(spa_t *spa) |
| 789 | 3348 { |
| 1544 | 3349 vdev_t *vd; |
| 2082 | 3350 vdev_t *pvd; |
| 1544 | 3351 uint64_t guid; |
| 2082 | 3352 uint64_t pguid = 0; |
| 789 | 3353 |
| 1544 | 3354 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 3355 |
| 4451 | 3356 while ((vd = spa_vdev_resilver_done_hunt(spa->spa_root_vdev)) != NULL) { |
| 1544 | 3357 guid = vd->vdev_guid; |
| 2082 | 3358 /* |
| 3359 * If we have just finished replacing a hot spared device, then | |
| 3360 * we need to detach the parent's first child (the original hot | |
| 3361 * spare) as well. | |
| 3362 */ | |
| 3363 pvd = vd->vdev_parent; | |
| 3364 if (pvd->vdev_parent->vdev_ops == &vdev_spare_ops && | |
| 3365 pvd->vdev_id == 0) { | |
| 3366 ASSERT(pvd->vdev_ops == &vdev_replacing_ops); | |
| 3367 ASSERT(pvd->vdev_parent->vdev_children == 2); | |
| 3368 pguid = pvd->vdev_parent->vdev_child[1]->vdev_guid; | |
| 3369 } | |
| 1544 | 3370 spa_config_exit(spa, FTAG); |
| 3371 if (spa_vdev_detach(spa, guid, B_TRUE) != 0) | |
| 3372 return; | |
| 2082 | 3373 if (pguid != 0 && spa_vdev_detach(spa, pguid, B_TRUE) != 0) |
| 3374 return; | |
| 1544 | 3375 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 3376 } |
| 3377 | |
| 1544 | 3378 spa_config_exit(spa, FTAG); |
| 789 | 3379 } |
| 3380 | |
| 3381 /* | |
|
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81359ee1ee63
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|
3382 * Update the stored path for this vdev. Dirty the vdev configuration, relying |
|
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|
3383 * on spa_vdev_enter/exit() to synchronize the labels and cache. |
|
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|
3384 */ |
|
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6362672 import gets confused about overlapping slices
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|
3385 int |
|
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diff
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|
3386 spa_vdev_setpath(spa_t *spa, uint64_t guid, const char *newpath) |
|
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|
3387 { |
|
6643
3a34b0dbb107
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diff
changeset
|
3388 vdev_t *vd; |
|
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|
3389 uint64_t txg; |
|
81359ee1ee63
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diff
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|
3390 |
|
81359ee1ee63
6362672 import gets confused about overlapping slices
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diff
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|
3391 txg = spa_vdev_enter(spa); |
|
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|
3392 |
|
6643
3a34b0dbb107
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diff
changeset
|
3393 if ((vd = spa_lookup_by_guid(spa, guid, B_TRUE)) == NULL) { |
| 2082 | 3394 /* |
|
6643
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
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6615
diff
changeset
|
3395 * Determine if this is a reference to a hot spare device. If |
|
3a34b0dbb107
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6615
diff
changeset
|
3396 * it is, update the path manually as there is no associated |
|
3a34b0dbb107
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diff
changeset
|
3397 * vdev_t that can be synced to disk. |
| 2082 | 3398 */ |
|
6643
3a34b0dbb107
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eschrock
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6615
diff
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|
3399 nvlist_t **spares; |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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6615
diff
changeset
|
3400 uint_t i, nspares; |
| 5450 | 3401 |
| 3402 if (spa->spa_spares.sav_config != NULL) { | |
| 3403 VERIFY(nvlist_lookup_nvlist_array( | |
| 3404 spa->spa_spares.sav_config, ZPOOL_CONFIG_SPARES, | |
| 3405 &spares, &nspares) == 0); | |
| 2082 | 3406 for (i = 0; i < nspares; i++) { |
| 3407 uint64_t theguid; | |
| 3408 VERIFY(nvlist_lookup_uint64(spares[i], | |
| 3409 ZPOOL_CONFIG_GUID, &theguid) == 0); | |
| 5450 | 3410 if (theguid == guid) { |
| 3411 VERIFY(nvlist_add_string(spares[i], | |
| 3412 ZPOOL_CONFIG_PATH, newpath) == 0); | |
| 3413 spa_load_spares(spa); | |
| 3414 spa->spa_spares.sav_sync = B_TRUE; | |
| 3415 return (spa_vdev_exit(spa, NULL, txg, | |
| 3416 0)); | |
| 3417 } | |
| 2082 | 3418 } |
| 3419 } | |
| 5450 | 3420 |
| 3421 return (spa_vdev_exit(spa, NULL, txg, ENOENT)); | |
| 2082 | 3422 } |
|
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|
3423 |
|
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
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parents:
1544
diff
changeset
|
3424 if (!vd->vdev_ops->vdev_op_leaf) |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
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diff
changeset
|
3425 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
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parents:
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diff
changeset
|
3426 |
|
1354
81359ee1ee63
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|
3427 spa_strfree(vd->vdev_path); |
|
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diff
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|
3428 vd->vdev_path = spa_strdup(newpath); |
|
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changeset
|
3429 |
|
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|
3430 vdev_config_dirty(vd->vdev_top); |
|
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|
3431 |
|
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|
3432 return (spa_vdev_exit(spa, NULL, txg, 0)); |
|
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|
3433 } |
|
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|
3434 |
|
81359ee1ee63
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|
3435 /* |
| 789 | 3436 * ========================================================================== |
| 3437 * SPA Scrubbing | |
| 3438 * ========================================================================== | |
| 3439 */ | |
| 3440 | |
|
7046
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diff
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|
3441 int |
|
361307ae060d
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diff
changeset
|
3442 spa_scrub(spa_t *spa, pool_scrub_type_t type) |
| 789 | 3443 { |
| 4808 | 3444 ASSERT(!spa_config_held(spa, RW_WRITER)); |
| 3445 | |
| 789 | 3446 if ((uint_t)type >= POOL_SCRUB_TYPES) |
| 3447 return (ENOTSUP); | |
| 3448 | |
| 3449 /* | |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
7042
diff
changeset
|
3450 * If a resilver was requested, but there is no DTL on a |
|
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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diff
changeset
|
3451 * writeable leaf device, we have nothing to do. |
| 789 | 3452 */ |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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diff
changeset
|
3453 if (type == POOL_SCRUB_RESILVER && |
|
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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7042
diff
changeset
|
3454 !vdev_resilver_needed(spa->spa_root_vdev, NULL, NULL)) { |
|
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
7042
diff
changeset
|
3455 spa_async_request(spa, SPA_ASYNC_RESILVER_DONE); |
| 1544 | 3456 return (0); |
| 3457 } | |
| 789 | 3458 |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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diff
changeset
|
3459 if (type == POOL_SCRUB_EVERYTHING && |
|
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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diff
changeset
|
3460 spa->spa_dsl_pool->dp_scrub_func != SCRUB_FUNC_NONE && |
|
361307ae060d
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ahrens
parents:
7042
diff
changeset
|
3461 spa->spa_dsl_pool->dp_scrub_isresilver) |
|
361307ae060d
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parents:
7042
diff
changeset
|
3462 return (EBUSY); |
|
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ahrens
parents:
7042
diff
changeset
|
3463 |
|
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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parents:
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diff
changeset
|
3464 if (type == POOL_SCRUB_EVERYTHING || type == POOL_SCRUB_RESILVER) { |
|
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
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diff
changeset
|
3465 return (dsl_pool_scrub_clean(spa->spa_dsl_pool)); |
|
361307ae060d
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diff
changeset
|
3466 } else if (type == POOL_SCRUB_NONE) { |
|
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6343667 scrub/resilver has to start over when a snapshot is taken
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7042
diff
changeset
|
3467 return (dsl_pool_scrub_cancel(spa->spa_dsl_pool)); |
| 1544 | 3468 } else { |
|
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361307ae060d
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diff
changeset
|
3469 return (EINVAL); |
| 1544 | 3470 } |
| 789 | 3471 } |
| 3472 | |
| 1544 | 3473 /* |
| 3474 * ========================================================================== | |
| 3475 * SPA async task processing | |
| 3476 * ========================================================================== | |
| 3477 */ | |
| 3478 | |
| 3479 static void | |
| 4451 | 3480 spa_async_remove(spa_t *spa, vdev_t *vd) |
| 789 | 3481 { |
| 1544 | 3482 vdev_t *tvd; |
| 3483 int c; | |
| 3484 | |
| 4451 | 3485 for (c = 0; c < vd->vdev_children; c++) { |
| 3486 tvd = vd->vdev_child[c]; | |
| 3487 if (tvd->vdev_remove_wanted) { | |
| 3488 tvd->vdev_remove_wanted = 0; | |
| 3489 vdev_set_state(tvd, B_FALSE, VDEV_STATE_REMOVED, | |
| 3490 VDEV_AUX_NONE); | |
| 5329 | 3491 vdev_clear(spa, tvd, B_TRUE); |
| 4451 | 3492 vdev_config_dirty(tvd->vdev_top); |
| 1544 | 3493 } |
| 4451 | 3494 spa_async_remove(spa, tvd); |
| 1544 | 3495 } |
| 3496 } | |
| 3497 | |
| 3498 static void | |
| 3499 spa_async_thread(spa_t *spa) | |
| 3500 { | |
| 3501 int tasks; | |
| 4451 | 3502 uint64_t txg; |
| 1544 | 3503 |
| 3504 ASSERT(spa->spa_sync_on); | |
| 789 | 3505 |
| 1544 | 3506 mutex_enter(&spa->spa_async_lock); |
| 3507 tasks = spa->spa_async_tasks; | |
| 3508 spa->spa_async_tasks = 0; | |
| 3509 mutex_exit(&spa->spa_async_lock); | |
| 3510 | |
| 3511 /* | |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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1601
diff
changeset
|
3512 * See if the config needs to be updated. |
|
0ab1193d47cb
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bonwick
parents:
1601
diff
changeset
|
3513 */ |
|
0ab1193d47cb
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diff
changeset
|
3514 if (tasks & SPA_ASYNC_CONFIG_UPDATE) { |
|
0ab1193d47cb
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1601
diff
changeset
|
3515 mutex_enter(&spa_namespace_lock); |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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parents:
1601
diff
changeset
|
3516 spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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1601
diff
changeset
|
3517 mutex_exit(&spa_namespace_lock); |
|
0ab1193d47cb
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parents:
1601
diff
changeset
|
3518 } |
|
0ab1193d47cb
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1601
diff
changeset
|
3519 |
|
0ab1193d47cb
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diff
changeset
|
3520 /* |
| 4451 | 3521 * See if any devices need to be marked REMOVED. |
| 5329 | 3522 * |
| 3523 * XXX - We avoid doing this when we are in | |
| 3524 * I/O failure state since spa_vdev_enter() grabs | |
| 3525 * the namespace lock and would not be able to obtain | |
| 3526 * the writer config lock. | |
| 1544 | 3527 */ |
| 5329 | 3528 if (tasks & SPA_ASYNC_REMOVE && |
| 3529 spa_state(spa) != POOL_STATE_IO_FAILURE) { | |
| 4451 | 3530 txg = spa_vdev_enter(spa); |
| 3531 spa_async_remove(spa, spa->spa_root_vdev); | |
| 3532 (void) spa_vdev_exit(spa, NULL, txg, 0); | |
| 3533 } | |
| 1544 | 3534 |
| 3535 /* | |
| 3536 * If any devices are done replacing, detach them. | |
| 3537 */ | |
| 4451 | 3538 if (tasks & SPA_ASYNC_RESILVER_DONE) |
| 3539 spa_vdev_resilver_done(spa); | |
| 789 | 3540 |
| 1544 | 3541 /* |
| 3542 * Kick off a resilver. | |
| 3543 */ | |
|
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7042
diff
changeset
|
3544 if (tasks & SPA_ASYNC_RESILVER) |
|
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
7042
diff
changeset
|
3545 VERIFY(spa_scrub(spa, POOL_SCRUB_RESILVER) == 0); |
| 1544 | 3546 |
| 3547 /* | |
| 3548 * Let the world know that we're done. | |
| 3549 */ | |
| 3550 mutex_enter(&spa->spa_async_lock); | |
| 3551 spa->spa_async_thread = NULL; | |
| 3552 cv_broadcast(&spa->spa_async_cv); | |
| 3553 mutex_exit(&spa->spa_async_lock); | |
| 3554 thread_exit(); | |
| 3555 } | |
| 3556 | |
| 3557 void | |
| 3558 spa_async_suspend(spa_t *spa) | |
| 3559 { | |
| 3560 mutex_enter(&spa->spa_async_lock); | |
| 3561 spa->spa_async_suspended++; | |
| 3562 while (spa->spa_async_thread != NULL) | |
| 3563 cv_wait(&spa->spa_async_cv, &spa->spa_async_lock); | |
| 3564 mutex_exit(&spa->spa_async_lock); | |
| 3565 } | |
| 3566 | |
| 3567 void | |
| 3568 spa_async_resume(spa_t *spa) | |
| 3569 { | |
| 3570 mutex_enter(&spa->spa_async_lock); | |
| 3571 ASSERT(spa->spa_async_suspended != 0); | |
| 3572 spa->spa_async_suspended--; | |
| 3573 mutex_exit(&spa->spa_async_lock); | |
| 3574 } | |
| 3575 | |
| 3576 static void | |
| 3577 spa_async_dispatch(spa_t *spa) | |
| 3578 { | |
| 3579 mutex_enter(&spa->spa_async_lock); | |
| 3580 if (spa->spa_async_tasks && !spa->spa_async_suspended && | |
|
1635
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bonwick
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1601
diff
changeset
|
3581 spa->spa_async_thread == NULL && |
|
0ab1193d47cb
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bonwick
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1601
diff
changeset
|
3582 rootdir != NULL && !vn_is_readonly(rootdir)) |
| 1544 | 3583 spa->spa_async_thread = thread_create(NULL, 0, |
| 3584 spa_async_thread, spa, 0, &p0, TS_RUN, maxclsyspri); | |
| 3585 mutex_exit(&spa->spa_async_lock); | |
| 3586 } | |
| 3587 | |
| 3588 void | |
| 3589 spa_async_request(spa_t *spa, int task) | |
| 3590 { | |
| 3591 mutex_enter(&spa->spa_async_lock); | |
| 3592 spa->spa_async_tasks |= task; | |
| 3593 mutex_exit(&spa->spa_async_lock); | |
| 789 | 3594 } |
| 3595 | |
| 3596 /* | |
| 3597 * ========================================================================== | |
| 3598 * SPA syncing routines | |
| 3599 * ========================================================================== | |
| 3600 */ | |
| 3601 | |
| 3602 static void | |
| 3603 spa_sync_deferred_frees(spa_t *spa, uint64_t txg) | |
| 3604 { | |
| 3605 bplist_t *bpl = &spa->spa_sync_bplist; | |
| 3606 dmu_tx_t *tx; | |
| 3607 blkptr_t blk; | |
| 3608 uint64_t itor = 0; | |
| 3609 zio_t *zio; | |
| 3610 int error; | |
| 3611 uint8_t c = 1; | |
| 3612 | |
| 3613 zio = zio_root(spa, NULL, NULL, ZIO_FLAG_CONFIG_HELD); | |
| 3614 | |
| 3615 while (bplist_iterate(bpl, &itor, &blk) == 0) | |
| 3616 zio_nowait(zio_free(zio, spa, txg, &blk, NULL, NULL)); | |
| 3617 | |
| 3618 error = zio_wait(zio); | |
| 3619 ASSERT3U(error, ==, 0); | |
| 3620 | |
| 3621 tx = dmu_tx_create_assigned(spa->spa_dsl_pool, txg); | |
| 3622 bplist_vacate(bpl, tx); | |
| 3623 | |
| 3624 /* | |
| 3625 * Pre-dirty the first block so we sync to convergence faster. | |
| 3626 * (Usually only the first block is needed.) | |
| 3627 */ | |
| 3628 dmu_write(spa->spa_meta_objset, spa->spa_sync_bplist_obj, 0, 1, &c, tx); | |
| 3629 dmu_tx_commit(tx); | |
| 3630 } | |
| 3631 | |
| 3632 static void | |
| 2082 | 3633 spa_sync_nvlist(spa_t *spa, uint64_t obj, nvlist_t *nv, dmu_tx_t *tx) |
| 3634 { | |
| 3635 char *packed = NULL; | |
| 3636 size_t nvsize = 0; | |
| 3637 dmu_buf_t *db; | |
| 3638 | |
| 3639 VERIFY(nvlist_size(nv, &nvsize, NV_ENCODE_XDR) == 0); | |
| 3640 | |
| 3641 packed = kmem_alloc(nvsize, KM_SLEEP); | |
| 3642 | |
| 3643 VERIFY(nvlist_pack(nv, &packed, &nvsize, NV_ENCODE_XDR, | |
| 3644 KM_SLEEP) == 0); | |
| 3645 | |
| 3646 dmu_write(spa->spa_meta_objset, obj, 0, nvsize, packed, tx); | |
| 3647 | |
| 3648 kmem_free(packed, nvsize); | |
| 3649 | |
| 3650 VERIFY(0 == dmu_bonus_hold(spa->spa_meta_objset, obj, FTAG, &db)); | |
| 3651 dmu_buf_will_dirty(db, tx); | |
| 3652 *(uint64_t *)db->db_data = nvsize; | |
| 3653 dmu_buf_rele(db, FTAG); | |
| 3654 } | |
| 3655 | |
| 3656 static void | |
| 5450 | 3657 spa_sync_aux_dev(spa_t *spa, spa_aux_vdev_t *sav, dmu_tx_t *tx, |
| 3658 const char *config, const char *entry) | |
| 2082 | 3659 { |
| 3660 nvlist_t *nvroot; | |
| 5450 | 3661 nvlist_t **list; |
| 2082 | 3662 int i; |
| 3663 | |
| 5450 | 3664 if (!sav->sav_sync) |
| 2082 | 3665 return; |
| 3666 | |
| 3667 /* | |
| 5450 | 3668 * Update the MOS nvlist describing the list of available devices. |
| 3669 * spa_validate_aux() will have already made sure this nvlist is | |
| 4451 | 3670 * valid and the vdevs are labeled appropriately. |
| 2082 | 3671 */ |
| 5450 | 3672 if (sav->sav_object == 0) { |
| 3673 sav->sav_object = dmu_object_alloc(spa->spa_meta_objset, | |
| 3674 DMU_OT_PACKED_NVLIST, 1 << 14, DMU_OT_PACKED_NVLIST_SIZE, | |
| 3675 sizeof (uint64_t), tx); | |
| 2082 | 3676 VERIFY(zap_update(spa->spa_meta_objset, |
| 5450 | 3677 DMU_POOL_DIRECTORY_OBJECT, entry, sizeof (uint64_t), 1, |
| 3678 &sav->sav_object, tx) == 0); | |
| 2082 | 3679 } |
| 3680 | |
| 3681 VERIFY(nvlist_alloc(&nvroot, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
| 5450 | 3682 if (sav->sav_count == 0) { |
| 3683 VERIFY(nvlist_add_nvlist_array(nvroot, config, NULL, 0) == 0); | |
| 2082 | 3684 } else { |
| 5450 | 3685 list = kmem_alloc(sav->sav_count * sizeof (void *), KM_SLEEP); |
| 3686 for (i = 0; i < sav->sav_count; i++) | |
| 3687 list[i] = vdev_config_generate(spa, sav->sav_vdevs[i], | |
| 3688 B_FALSE, B_FALSE, B_TRUE); | |
| 3689 VERIFY(nvlist_add_nvlist_array(nvroot, config, list, | |
| 3690 sav->sav_count) == 0); | |
| 3691 for (i = 0; i < sav->sav_count; i++) | |
| 3692 nvlist_free(list[i]); | |
| 3693 kmem_free(list, sav->sav_count * sizeof (void *)); | |
| 2082 | 3694 } |
| 3695 | |
| 5450 | 3696 spa_sync_nvlist(spa, sav->sav_object, nvroot, tx); |
| 2926 | 3697 nvlist_free(nvroot); |
| 2082 | 3698 |
| 5450 | 3699 sav->sav_sync = B_FALSE; |
| 2082 | 3700 } |
| 3701 | |
| 3702 static void | |
| 789 | 3703 spa_sync_config_object(spa_t *spa, dmu_tx_t *tx) |
| 3704 { | |
| 3705 nvlist_t *config; | |
| 3706 | |
| 3707 if (list_is_empty(&spa->spa_dirty_list)) | |
| 3708 return; | |
| 3709 | |
| 3710 config = spa_config_generate(spa, NULL, dmu_tx_get_txg(tx), B_FALSE); | |
| 3711 | |
|
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|
3712 if (spa->spa_config_syncing) |
|
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|
3713 nvlist_free(spa->spa_config_syncing); |
|
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|
3714 spa->spa_config_syncing = config; |
| 789 | 3715 |
| 2082 | 3716 spa_sync_nvlist(spa, spa->spa_config_object, config, tx); |
| 789 | 3717 } |
| 3718 | |
| 5094 | 3719 /* |
| 3720 * Set zpool properties. | |
| 3721 */ | |
| 3912 | 3722 static void |
| 4543 | 3723 spa_sync_props(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) |
| 3912 | 3724 { |
| 3725 spa_t *spa = arg1; | |
| 5094 | 3726 objset_t *mos = spa->spa_meta_objset; |
| 3912 | 3727 nvlist_t *nvp = arg2; |
| 5094 | 3728 nvpair_t *elem; |
| 4451 | 3729 uint64_t intval; |
|
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|
3730 char *strval; |
| 5094 | 3731 zpool_prop_t prop; |
| 3732 const char *propname; | |
| 3733 zprop_type_t proptype; | |
|
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|
3734 spa_config_dirent_t *dp; |
| 5094 | 3735 |
| 3736 elem = NULL; | |
| 3737 while ((elem = nvlist_next_nvpair(nvp, elem))) { | |
| 3738 switch (prop = zpool_name_to_prop(nvpair_name(elem))) { | |
| 3739 case ZPOOL_PROP_VERSION: | |
| 3740 /* | |
| 3741 * Only set version for non-zpool-creation cases | |
| 3742 * (set/import). spa_create() needs special care | |
| 3743 * for version setting. | |
| 3744 */ | |
| 3745 if (tx->tx_txg != TXG_INITIAL) { | |
| 3746 VERIFY(nvpair_value_uint64(elem, | |
| 3747 &intval) == 0); | |
| 3748 ASSERT(intval <= SPA_VERSION); | |
| 3749 ASSERT(intval >= spa_version(spa)); | |
| 3750 spa->spa_uberblock.ub_version = intval; | |
| 3751 vdev_config_dirty(spa->spa_root_vdev); | |
| 3752 } | |
| 3753 break; | |
| 3754 | |
| 3755 case ZPOOL_PROP_ALTROOT: | |
| 3756 /* | |
| 3757 * 'altroot' is a non-persistent property. It should | |
| 3758 * have been set temporarily at creation or import time. | |
| 3759 */ | |
| 3760 ASSERT(spa->spa_root != NULL); | |
| 3761 break; | |
| 3762 | |
| 5363 | 3763 case ZPOOL_PROP_CACHEFILE: |
| 5094 | 3764 /* |
| 5363 | 3765 * 'cachefile' is a non-persistent property, but note |
| 3766 * an async request that the config cache needs to be | |
| 3767 * udpated. | |
| 5094 | 3768 */ |
| 5363 | 3769 VERIFY(nvpair_value_string(elem, &strval) == 0); |
|
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|
3770 |
|
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|
3771 dp = kmem_alloc(sizeof (spa_config_dirent_t), |
|
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|
3772 KM_SLEEP); |
|
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|
3773 |
|
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|
3774 if (strval[0] == '\0') |
|
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|
3775 dp->scd_path = spa_strdup(spa_config_path); |
|
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3776 else if (strcmp(strval, "none") == 0) |
|
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|
3777 dp->scd_path = NULL; |
|
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|
3778 else |
|
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|
3779 dp->scd_path = spa_strdup(strval); |
|
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|
3780 |
|
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|
3781 list_insert_head(&spa->spa_config_list, dp); |
| 5363 | 3782 spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE); |
| 4543 | 3783 break; |
| 5094 | 3784 default: |
| 3785 /* | |
| 3786 * Set pool property values in the poolprops mos object. | |
| 3787 */ | |
| 3788 mutex_enter(&spa->spa_props_lock); | |
| 3789 if (spa->spa_pool_props_object == 0) { | |
| 3790 objset_t *mos = spa->spa_meta_objset; | |
| 3791 | |
| 3792 VERIFY((spa->spa_pool_props_object = | |
| 3793 zap_create(mos, DMU_OT_POOL_PROPS, | |
| 3794 DMU_OT_NONE, 0, tx)) > 0); | |
| 3795 | |
| 3796 VERIFY(zap_update(mos, | |
| 3797 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_PROPS, | |
| 3798 8, 1, &spa->spa_pool_props_object, tx) | |
| 3799 == 0); | |
| 3800 } | |
| 3801 mutex_exit(&spa->spa_props_lock); | |
| 3802 | |
| 3803 /* normalize the property name */ | |
| 3804 propname = zpool_prop_to_name(prop); | |
| 3805 proptype = zpool_prop_get_type(prop); | |
| 3806 | |
| 3807 if (nvpair_type(elem) == DATA_TYPE_STRING) { | |
| 3808 ASSERT(proptype == PROP_TYPE_STRING); | |
| 3809 VERIFY(nvpair_value_string(elem, &strval) == 0); | |
| 3810 VERIFY(zap_update(mos, | |
| 3811 spa->spa_pool_props_object, propname, | |
| 3812 1, strlen(strval) + 1, strval, tx) == 0); | |
| 3813 | |
| 3814 } else if (nvpair_type(elem) == DATA_TYPE_UINT64) { | |
| 3815 VERIFY(nvpair_value_uint64(elem, &intval) == 0); | |
| 3816 | |
| 3817 if (proptype == PROP_TYPE_INDEX) { | |
| 3818 const char *unused; | |
| 3819 VERIFY(zpool_prop_index_to_string( | |
| 3820 prop, intval, &unused) == 0); | |
| 3821 } | |
| 3822 VERIFY(zap_update(mos, | |
| 3823 spa->spa_pool_props_object, propname, | |
| 3824 8, 1, &intval, tx) == 0); | |
| 3825 } else { | |
| 3826 ASSERT(0); /* not allowed */ | |
| 3827 } | |
| 3828 | |
| 5329 | 3829 switch (prop) { |
| 3830 case ZPOOL_PROP_DELEGATION: | |
| 5094 | 3831 spa->spa_delegation = intval; |
| 5329 | 3832 break; |
| 3833 case ZPOOL_PROP_BOOTFS: | |
| 5094 | 3834 spa->spa_bootfs = intval; |
| 5329 | 3835 break; |
| 3836 case ZPOOL_PROP_FAILUREMODE: | |
| 3837 spa->spa_failmode = intval; | |
| 3838 break; | |
| 3839 default: | |
| 3840 break; | |
| 3841 } | |
| 3912 | 3842 } |
| 5094 | 3843 |
| 3844 /* log internal history if this is not a zpool create */ | |
| 3845 if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY && | |
| 3846 tx->tx_txg != TXG_INITIAL) { | |
| 3847 spa_history_internal_log(LOG_POOL_PROPSET, | |
| 3848 spa, tx, cr, "%s %lld %s", | |
| 3849 nvpair_name(elem), intval, spa->spa_name); | |
| 3850 } | |
| 3912 | 3851 } |
| 3852 } | |
| 3853 | |
| 789 | 3854 /* |
| 3855 * Sync the specified transaction group. New blocks may be dirtied as | |
| 3856 * part of the process, so we iterate until it converges. | |
| 3857 */ | |
| 3858 void | |
| 3859 spa_sync(spa_t *spa, uint64_t txg) | |
| 3860 { | |
| 3861 dsl_pool_t *dp = spa->spa_dsl_pool; | |
| 3862 objset_t *mos = spa->spa_meta_objset; | |
| 3863 bplist_t *bpl = &spa->spa_sync_bplist; | |
|
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3864 vdev_t *rvd = spa->spa_root_vdev; |
| 789 | 3865 vdev_t *vd; |
| 3866 dmu_tx_t *tx; | |
| 3867 int dirty_vdevs; | |
| 3868 | |
| 3869 /* | |
| 3870 * Lock out configuration changes. | |
| 3871 */ | |
| 1544 | 3872 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 3873 |
| 3874 spa->spa_syncing_txg = txg; | |
| 3875 spa->spa_sync_pass = 0; | |
| 3876 | |
| 1544 | 3877 VERIFY(0 == bplist_open(bpl, mos, spa->spa_sync_bplist_obj)); |
| 789 | 3878 |
| 2082 | 3879 tx = dmu_tx_create_assigned(dp, txg); |
| 3880 | |
| 3881 /* | |
| 4577 | 3882 * If we are upgrading to SPA_VERSION_RAIDZ_DEFLATE this txg, |
| 2082 | 3883 * set spa_deflate if we have no raid-z vdevs. |
| 3884 */ | |
| 4577 | 3885 if (spa->spa_ubsync.ub_version < SPA_VERSION_RAIDZ_DEFLATE && |
| 3886 spa->spa_uberblock.ub_version >= SPA_VERSION_RAIDZ_DEFLATE) { | |
| 2082 | 3887 int i; |
| 3888 | |
| 3889 for (i = 0; i < rvd->vdev_children; i++) { | |
| 3890 vd = rvd->vdev_child[i]; | |
| 3891 if (vd->vdev_deflate_ratio != SPA_MINBLOCKSIZE) | |
| 3892 break; | |
| 3893 } | |
| 3894 if (i == rvd->vdev_children) { | |
| 3895 spa->spa_deflate = TRUE; | |
| 3896 VERIFY(0 == zap_add(spa->spa_meta_objset, | |
| 3897 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
| 3898 sizeof (uint64_t), 1, &spa->spa_deflate, tx)); | |
| 3899 } | |
| 3900 } | |
| 3901 | |
|
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3902 if (spa->spa_ubsync.ub_version < SPA_VERSION_ORIGIN && |
|
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3903 spa->spa_uberblock.ub_version >= SPA_VERSION_ORIGIN) { |
|
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|
3904 dsl_pool_create_origin(dp, tx); |
|
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|
3905 |
|
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|
3906 /* Keeping the origin open increases spa_minref */ |
|
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|
3907 spa->spa_minref += 3; |
|
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|
3908 } |
|
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|
3909 |
|
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|
3910 if (spa->spa_ubsync.ub_version < SPA_VERSION_NEXT_CLONES && |
|
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3911 spa->spa_uberblock.ub_version >= SPA_VERSION_NEXT_CLONES) { |
|
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|
3912 dsl_pool_upgrade_clones(dp, tx); |
|
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|
3913 } |
|
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|
3914 |
| 789 | 3915 /* |
| 3916 * If anything has changed in this txg, push the deferred frees | |
| 3917 * from the previous txg. If not, leave them alone so that we | |
| 3918 * don't generate work on an otherwise idle system. | |
| 3919 */ | |
| 3920 if (!txg_list_empty(&dp->dp_dirty_datasets, txg) || | |
|
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|
3921 !txg_list_empty(&dp->dp_dirty_dirs, txg) || |
|
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|
3922 !txg_list_empty(&dp->dp_sync_tasks, txg)) |
| 789 | 3923 spa_sync_deferred_frees(spa, txg); |
| 3924 | |
| 3925 /* | |
| 3926 * Iterate to convergence. | |
| 3927 */ | |
| 3928 do { | |
| 3929 spa->spa_sync_pass++; | |
| 3930 | |
| 3931 spa_sync_config_object(spa, tx); | |
| 5450 | 3932 spa_sync_aux_dev(spa, &spa->spa_spares, tx, |
| 3933 ZPOOL_CONFIG_SPARES, DMU_POOL_SPARES); | |
| 3934 spa_sync_aux_dev(spa, &spa->spa_l2cache, tx, | |
| 3935 ZPOOL_CONFIG_L2CACHE, DMU_POOL_L2CACHE); | |
| 1544 | 3936 spa_errlog_sync(spa, txg); |
| 789 | 3937 dsl_pool_sync(dp, txg); |
| 3938 | |
| 3939 dirty_vdevs = 0; | |
| 3940 while (vd = txg_list_remove(&spa->spa_vdev_txg_list, txg)) { | |
| 3941 vdev_sync(vd, txg); | |
| 3942 dirty_vdevs++; | |
| 3943 } | |
| 3944 | |
| 3945 bplist_sync(bpl, tx); | |
| 3946 } while (dirty_vdevs); | |
| 3947 | |
| 3948 bplist_close(bpl); | |
| 3949 | |
| 3950 dprintf("txg %llu passes %d\n", txg, spa->spa_sync_pass); | |
| 3951 | |
| 3952 /* | |
| 3953 * Rewrite the vdev configuration (which includes the uberblock) | |
| 3954 * to commit the transaction group. | |
|
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3955 * |
|
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|
3956 * If there are no dirty vdevs, we sync the uberblock to a few |
|
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|
3957 * 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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|
3958 * config cache (see spa_vdev_add() for details). If there *are* |
|
c0b02c8fd2c0
6640580 spa_get_random() is insanely slow in userland
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|
3959 * 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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|
3960 * then sync the uberblock to all vdevs. |
| 789 | 3961 */ |
|
5688
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6640580 spa_get_random() is insanely slow in userland
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|
3962 if (list_is_empty(&spa->spa_dirty_list)) { |
|
6615
333cfc13ec55
6616599 vdev_config_sync(rvd, txg) == 0, file: ../../common/fs/zfs/spa .c, line: 3537
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diff
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|
3963 vdev_t *svd[SPA_DVAS_PER_BP]; |
|
333cfc13ec55
6616599 vdev_config_sync(rvd, txg) == 0, file: ../../common/fs/zfs/spa .c, line: 3537
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diff
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|
3964 int svdcount = 0; |
|
1635
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6398664 zpool detach: missing argument to error message causes core dump
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diff
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|
3965 int children = rvd->vdev_children; |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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diff
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|
3966 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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|
3967 int c; |
|
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6398664 zpool detach: missing argument to error message causes core dump
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diff
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|
3968 |
|
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|
3969 for (c = 0; c < children; c++) { |
|
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diff
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|
3970 vd = rvd->vdev_child[(c0 + c) % children]; |
|
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|
3971 if (vd->vdev_ms_array == 0 || vd->vdev_islog) |
|
1635
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6398664 zpool detach: missing argument to error message causes core dump
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|
3972 continue; |
|
5688
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diff
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|
3973 svd[svdcount++] = vd; |
|
c0b02c8fd2c0
6640580 spa_get_random() is insanely slow in userland
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|
3974 if (svdcount == SPA_DVAS_PER_BP) |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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diff
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|
3975 break; |
|
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diff
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|
3976 } |
|
6615
333cfc13ec55
6616599 vdev_config_sync(rvd, txg) == 0, file: ../../common/fs/zfs/spa .c, line: 3537
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diff
changeset
|
3977 vdev_config_sync(svd, svdcount, txg); |
|
333cfc13ec55
6616599 vdev_config_sync(rvd, txg) == 0, file: ../../common/fs/zfs/spa .c, line: 3537
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diff
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|
3978 } else { |
|
333cfc13ec55
6616599 vdev_config_sync(rvd, txg) == 0, file: ../../common/fs/zfs/spa .c, line: 3537
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diff
changeset
|
3979 vdev_config_sync(rvd->vdev_child, rvd->vdev_children, txg); |
|
1635
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diff
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|
3980 } |
| 2082 | 3981 dmu_tx_commit(tx); |
| 3982 | |
|
1635
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|
3983 /* |
|
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1601
diff
changeset
|
3984 * Clear the dirty config list. |
|
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6398664 zpool detach: missing argument to error message causes core dump
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diff
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|
3985 */ |
|
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diff
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|
3986 while ((vd = list_head(&spa->spa_dirty_list)) != NULL) |
|
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diff
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|
3987 vdev_config_clean(vd); |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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diff
changeset
|
3988 |
|
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diff
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|
3989 /* |
|
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6398664 zpool detach: missing argument to error message causes core dump
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diff
changeset
|
3990 * Now that the new config has synced transactionally, |
|
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diff
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|
3991 * let it become visible to the config cache. |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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diff
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|
3992 */ |
|
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diff
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|
3993 if (spa->spa_config_syncing != NULL) { |
|
0ab1193d47cb
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parents:
1601
diff
changeset
|
3994 spa_config_set(spa, spa->spa_config_syncing); |
|
0ab1193d47cb
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parents:
1601
diff
changeset
|
3995 spa->spa_config_txg = txg; |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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parents:
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diff
changeset
|
3996 spa->spa_config_syncing = NULL; |
|
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diff
changeset
|
3997 } |
| 789 | 3998 |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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7042
diff
changeset
|
3999 spa->spa_traverse_wanted = B_TRUE; |
| 789 | 4000 rw_enter(&spa->spa_traverse_lock, RW_WRITER); |
|
7046
361307ae060d
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diff
changeset
|
4001 spa->spa_traverse_wanted = B_FALSE; |
| 789 | 4002 spa->spa_ubsync = spa->spa_uberblock; |
| 4003 rw_exit(&spa->spa_traverse_lock); | |
| 4004 | |
| 4005 /* | |
| 4006 * Clean up the ZIL records for the synced txg. | |
| 4007 */ | |
| 4008 dsl_pool_zil_clean(dp); | |
| 4009 | |
| 4010 /* | |
| 4011 * Update usable space statistics. | |
| 4012 */ | |
| 4013 while (vd = txg_list_remove(&spa->spa_vdev_txg_list, TXG_CLEAN(txg))) | |
| 4014 vdev_sync_done(vd, txg); | |
| 4015 | |
| 4016 /* | |
| 4017 * It had better be the case that we didn't dirty anything | |
| 2082 | 4018 * since vdev_config_sync(). |
| 789 | 4019 */ |
| 4020 ASSERT(txg_list_empty(&dp->dp_dirty_datasets, txg)); | |
| 4021 ASSERT(txg_list_empty(&dp->dp_dirty_dirs, txg)); | |
| 4022 ASSERT(txg_list_empty(&spa->spa_vdev_txg_list, txg)); | |
| 4023 ASSERT(bpl->bpl_queue == NULL); | |
| 4024 | |
| 1544 | 4025 spa_config_exit(spa, FTAG); |
| 4026 | |
| 4027 /* | |
| 4028 * If any async tasks have been requested, kick them off. | |
| 4029 */ | |
| 4030 spa_async_dispatch(spa); | |
| 789 | 4031 } |
| 4032 | |
| 4033 /* | |
| 4034 * Sync all pools. We don't want to hold the namespace lock across these | |
| 4035 * operations, so we take a reference on the spa_t and drop the lock during the | |
| 4036 * sync. | |
| 4037 */ | |
| 4038 void | |
| 4039 spa_sync_allpools(void) | |
| 4040 { | |
| 4041 spa_t *spa = NULL; | |
| 4042 mutex_enter(&spa_namespace_lock); | |
| 4043 while ((spa = spa_next(spa)) != NULL) { | |
| 4044 if (spa_state(spa) != POOL_STATE_ACTIVE) | |
| 4045 continue; | |
| 4046 spa_open_ref(spa, FTAG); | |
| 4047 mutex_exit(&spa_namespace_lock); | |
| 4048 txg_wait_synced(spa_get_dsl(spa), 0); | |
| 4049 mutex_enter(&spa_namespace_lock); | |
| 4050 spa_close(spa, FTAG); | |
| 4051 } | |
| 4052 mutex_exit(&spa_namespace_lock); | |
| 4053 } | |
| 4054 | |
| 4055 /* | |
| 4056 * ========================================================================== | |
| 4057 * Miscellaneous routines | |
| 4058 * ========================================================================== | |
| 4059 */ | |
| 4060 | |
| 4061 /* | |
| 4062 * Remove all pools in the system. | |
| 4063 */ | |
| 4064 void | |
| 4065 spa_evict_all(void) | |
| 4066 { | |
| 4067 spa_t *spa; | |
| 4068 | |
| 4069 /* | |
| 4070 * Remove all cached state. All pools should be closed now, | |
| 4071 * so every spa in the AVL tree should be unreferenced. | |
| 4072 */ | |
| 4073 mutex_enter(&spa_namespace_lock); | |
| 4074 while ((spa = spa_next(NULL)) != NULL) { | |
| 4075 /* | |
| 1544 | 4076 * Stop async tasks. The async thread may need to detach |
| 4077 * a device that's been replaced, which requires grabbing | |
| 4078 * spa_namespace_lock, so we must drop it here. | |
| 789 | 4079 */ |
| 4080 spa_open_ref(spa, FTAG); | |
| 4081 mutex_exit(&spa_namespace_lock); | |
| 1544 | 4082 spa_async_suspend(spa); |
| 4808 | 4083 mutex_enter(&spa_namespace_lock); |
| 789 | 4084 spa_close(spa, FTAG); |
| 4085 | |
| 4086 if (spa->spa_state != POOL_STATE_UNINITIALIZED) { | |
| 4087 spa_unload(spa); | |
| 4088 spa_deactivate(spa); | |
| 4089 } | |
| 4090 spa_remove(spa); | |
| 4091 } | |
| 4092 mutex_exit(&spa_namespace_lock); | |
| 4093 } | |
| 1544 | 4094 |
| 4095 vdev_t * | |
|
6643
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
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6615
diff
changeset
|
4096 spa_lookup_by_guid(spa_t *spa, uint64_t guid, boolean_t l2cache) |
| 1544 | 4097 { |
|
6643
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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6615
diff
changeset
|
4098 vdev_t *vd; |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
changeset
|
4099 int i; |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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parents:
6615
diff
changeset
|
4100 |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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6615
diff
changeset
|
4101 if ((vd = vdev_lookup_by_guid(spa->spa_root_vdev, guid)) != NULL) |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
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6615
diff
changeset
|
4102 return (vd); |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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parents:
6615
diff
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|
4103 |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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6615
diff
changeset
|
4104 if (l2cache) { |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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parents:
6615
diff
changeset
|
4105 for (i = 0; i < spa->spa_l2cache.sav_count; i++) { |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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parents:
6615
diff
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|
4106 vd = spa->spa_l2cache.sav_vdevs[i]; |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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6615
diff
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|
4107 if (vd->vdev_guid == guid) |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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parents:
6615
diff
changeset
|
4108 return (vd); |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
changeset
|
4109 } |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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6615
diff
changeset
|
4110 } |
|
3a34b0dbb107
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6615
diff
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|
4111 |
|
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6615
diff
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|
4112 return (NULL); |
| 1544 | 4113 } |
| 1760 | 4114 |
| 4115 void | |
| 5094 | 4116 spa_upgrade(spa_t *spa, uint64_t version) |
| 1760 | 4117 { |
| 4118 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 4119 | |
| 4120 /* | |
| 4121 * This should only be called for a non-faulted pool, and since a | |
| 4122 * future version would result in an unopenable pool, this shouldn't be | |
| 4123 * possible. | |
| 4124 */ | |
| 4577 | 4125 ASSERT(spa->spa_uberblock.ub_version <= SPA_VERSION); |
| 5094 | 4126 ASSERT(version >= spa->spa_uberblock.ub_version); |
| 4127 | |
| 4128 spa->spa_uberblock.ub_version = version; | |
| 1760 | 4129 vdev_config_dirty(spa->spa_root_vdev); |
| 4130 | |
| 4131 spa_config_exit(spa, FTAG); | |
| 2082 | 4132 |
| 4133 txg_wait_synced(spa_get_dsl(spa), 0); | |
| 1760 | 4134 } |
| 2082 | 4135 |
| 4136 boolean_t | |
| 4137 spa_has_spare(spa_t *spa, uint64_t guid) | |
| 4138 { | |
| 4139 int i; | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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3290
diff
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|
4140 uint64_t spareguid; |
| 5450 | 4141 spa_aux_vdev_t *sav = &spa->spa_spares; |
| 4142 | |
| 4143 for (i = 0; i < sav->sav_count; i++) | |
| 4144 if (sav->sav_vdevs[i]->vdev_guid == guid) | |
| 2082 | 4145 return (B_TRUE); |
| 4146 | |
| 5450 | 4147 for (i = 0; i < sav->sav_npending; i++) { |
| 4148 if (nvlist_lookup_uint64(sav->sav_pending[i], ZPOOL_CONFIG_GUID, | |
| 4149 &spareguid) == 0 && spareguid == guid) | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
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3290
diff
changeset
|
4150 return (B_TRUE); |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
4151 } |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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3290
diff
changeset
|
4152 |
| 2082 | 4153 return (B_FALSE); |
| 4154 } | |
| 3912 | 4155 |
| 4451 | 4156 /* |
|
7214
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
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diff
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|
4157 * Check if a pool has an active shared spare device. |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
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diff
changeset
|
4158 * Note: reference count of an active spare is 2, as a spare and as a replace |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
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diff
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|
4159 */ |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
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diff
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|
4160 static boolean_t |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
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diff
changeset
|
4161 spa_has_active_shared_spare(spa_t *spa) |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
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|
4162 { |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
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diff
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|
4163 int i, refcnt; |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
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diff
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|
4164 uint64_t pool; |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
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|
4165 spa_aux_vdev_t *sav = &spa->spa_spares; |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
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|
4166 |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
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diff
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|
4167 for (i = 0; i < sav->sav_count; i++) { |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
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|
4168 if (spa_spare_exists(sav->sav_vdevs[i]->vdev_guid, &pool, |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
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diff
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|
4169 &refcnt) && pool != 0ULL && pool == spa_guid(spa) && |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
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|
4170 refcnt > 2) |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
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|
4171 return (B_TRUE); |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
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|
4172 } |
|
04c540040a32
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diff
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|
4173 |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
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|
4174 return (B_FALSE); |
|
04c540040a32
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|
4175 } |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
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|
4176 |
|
04c540040a32
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lling
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|
4177 /* |
| 4451 | 4178 * Post a sysevent corresponding to the given event. The 'name' must be one of |
| 4179 * the event definitions in sys/sysevent/eventdefs.h. The payload will be | |
| 4180 * filled in from the spa and (optionally) the vdev. This doesn't do anything | |
| 4181 * in the userland libzpool, as we don't want consumers to misinterpret ztest | |
| 4182 * or zdb as real changes. | |
| 4183 */ | |
| 4184 void | |
| 4185 spa_event_notify(spa_t *spa, vdev_t *vd, const char *name) | |
| 4186 { | |
| 4187 #ifdef _KERNEL | |
| 4188 sysevent_t *ev; | |
| 4189 sysevent_attr_list_t *attr = NULL; | |
| 4190 sysevent_value_t value; | |
| 4191 sysevent_id_t eid; | |
| 4192 | |
| 4193 ev = sysevent_alloc(EC_ZFS, (char *)name, SUNW_KERN_PUB "zfs", | |
| 4194 SE_SLEEP); | |
| 4195 | |
| 4196 value.value_type = SE_DATA_TYPE_STRING; | |
| 4197 value.value.sv_string = spa_name(spa); | |
| 4198 if (sysevent_add_attr(&attr, ZFS_EV_POOL_NAME, &value, SE_SLEEP) != 0) | |
| 4199 goto done; | |
| 4200 | |
| 4201 value.value_type = SE_DATA_TYPE_UINT64; | |
| 4202 value.value.sv_uint64 = spa_guid(spa); | |
| 4203 if (sysevent_add_attr(&attr, ZFS_EV_POOL_GUID, &value, SE_SLEEP) != 0) | |
| 4204 goto done; | |
| 4205 | |
| 4206 if (vd) { | |
| 4207 value.value_type = SE_DATA_TYPE_UINT64; | |
| 4208 value.value.sv_uint64 = vd->vdev_guid; | |
| 4209 if (sysevent_add_attr(&attr, ZFS_EV_VDEV_GUID, &value, | |
| 4210 SE_SLEEP) != 0) | |
| 4211 goto done; | |
| 4212 | |
| 4213 if (vd->vdev_path) { | |
| 4214 value.value_type = SE_DATA_TYPE_STRING; | |
| 4215 value.value.sv_string = vd->vdev_path; | |
| 4216 if (sysevent_add_attr(&attr, ZFS_EV_VDEV_PATH, | |
| 4217 &value, SE_SLEEP) != 0) | |
| 4218 goto done; | |
| 4219 } | |
| 4220 } | |
| 4221 | |
|
5756
05eb4c1ff492
6585441 spa_event_notify() doesn't pass its attributes
eschrock
parents:
5688
diff
changeset
|
4222 if (sysevent_attach_attributes(ev, attr) != 0) |
|
05eb4c1ff492
6585441 spa_event_notify() doesn't pass its attributes
eschrock
parents:
5688
diff
changeset
|
4223 goto done; |
|
05eb4c1ff492
6585441 spa_event_notify() doesn't pass its attributes
eschrock
parents:
5688
diff
changeset
|
4224 attr = NULL; |
|
05eb4c1ff492
6585441 spa_event_notify() doesn't pass its attributes
eschrock
parents:
5688
diff
changeset
|
4225 |
| 4451 | 4226 (void) log_sysevent(ev, SE_SLEEP, &eid); |
| 4227 | |
| 4228 done: | |
| 4229 if (attr) | |
| 4230 sysevent_free_attr(attr); | |
| 4231 sysevent_free(ev); | |
| 4232 #endif | |
| 4233 } |