Mercurial > illumos > illumos-gate
annotate usr/src/uts/common/fs/zfs/spa.c @ 7361:e7d1b928b483
6715111 A removed L2ARC device should show status REMOVED
6724373 removing cache devices from a pool with spares doesn't work
6731223 L2ARC: arc_hdr_destroy(), ASSERT(hdr->b_l2hdr != NULL)
6731256 failed L2ARC read should not return EIO
| author | Brendan Gregg - Sun Microsystems <Brendan.Gregg@Sun.COM> |
|---|---|
| date | Mon, 18 Aug 2008 17:28:31 -0700 |
| parents | a3c803100a09 |
| children | 2afc6772d754 |
| 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 /* | |
| 28 * This file contains all the routines used when modifying on-disk SPA state. | |
| 29 * This includes opening, importing, destroying, exporting a pool, and syncing a | |
| 30 * pool. | |
| 31 */ | |
| 32 | |
| 33 #include <sys/zfs_context.h> | |
| 1544 | 34 #include <sys/fm/fs/zfs.h> |
| 789 | 35 #include <sys/spa_impl.h> |
| 36 #include <sys/zio.h> | |
| 37 #include <sys/zio_checksum.h> | |
| 38 #include <sys/zio_compress.h> | |
| 39 #include <sys/dmu.h> | |
| 40 #include <sys/dmu_tx.h> | |
| 41 #include <sys/zap.h> | |
| 42 #include <sys/zil.h> | |
| 43 #include <sys/vdev_impl.h> | |
| 44 #include <sys/metaslab.h> | |
| 45 #include <sys/uberblock_impl.h> | |
| 46 #include <sys/txg.h> | |
| 47 #include <sys/avl.h> | |
| 48 #include <sys/dmu_traverse.h> | |
| 3912 | 49 #include <sys/dmu_objset.h> |
| 789 | 50 #include <sys/unique.h> |
| 51 #include <sys/dsl_pool.h> | |
| 3912 | 52 #include <sys/dsl_dataset.h> |
| 789 | 53 #include <sys/dsl_dir.h> |
| 54 #include <sys/dsl_prop.h> | |
| 3912 | 55 #include <sys/dsl_synctask.h> |
| 789 | 56 #include <sys/fs/zfs.h> |
| 5450 | 57 #include <sys/arc.h> |
| 789 | 58 #include <sys/callb.h> |
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59 #include <sys/systeminfo.h> |
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60 #include <sys/sunddi.h> |
| 6423 | 61 #include <sys/spa_boot.h> |
| 789 | 62 |
| 5094 | 63 #include "zfs_prop.h" |
|
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64 #include "zfs_comutil.h" |
| 5094 | 65 |
| 2986 | 66 int zio_taskq_threads = 8; |
| 67 | |
| 5094 | 68 static void spa_sync_props(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx); |
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69 static boolean_t spa_has_active_shared_spare(spa_t *spa); |
| 5094 | 70 |
| 71 /* | |
| 72 * ========================================================================== | |
| 73 * SPA properties routines | |
| 74 * ========================================================================== | |
| 75 */ | |
| 76 | |
| 77 /* | |
| 78 * Add a (source=src, propname=propval) list to an nvlist. | |
| 79 */ | |
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80 static void |
| 5094 | 81 spa_prop_add_list(nvlist_t *nvl, zpool_prop_t prop, char *strval, |
| 82 uint64_t intval, zprop_source_t src) | |
| 83 { | |
| 84 const char *propname = zpool_prop_to_name(prop); | |
| 85 nvlist_t *propval; | |
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86 |
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87 VERIFY(nvlist_alloc(&propval, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
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88 VERIFY(nvlist_add_uint64(propval, ZPROP_SOURCE, src) == 0); |
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89 |
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90 if (strval != NULL) |
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91 VERIFY(nvlist_add_string(propval, ZPROP_VALUE, strval) == 0); |
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92 else |
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93 VERIFY(nvlist_add_uint64(propval, ZPROP_VALUE, intval) == 0); |
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94 |
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95 VERIFY(nvlist_add_nvlist(nvl, propname, propval) == 0); |
| 5094 | 96 nvlist_free(propval); |
| 97 } | |
| 98 | |
| 99 /* | |
| 100 * Get property values from the spa configuration. | |
| 101 */ | |
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102 static void |
| 5094 | 103 spa_prop_get_config(spa_t *spa, nvlist_t **nvp) |
| 104 { | |
| 105 uint64_t size = spa_get_space(spa); | |
| 106 uint64_t used = spa_get_alloc(spa); | |
| 107 uint64_t cap, version; | |
| 108 zprop_source_t src = ZPROP_SRC_NONE; | |
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109 spa_config_dirent_t *dp; |
| 5094 | 110 |
| 111 /* | |
| 112 * readonly properties | |
| 113 */ | |
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114 spa_prop_add_list(*nvp, ZPOOL_PROP_NAME, spa->spa_name, 0, src); |
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115 spa_prop_add_list(*nvp, ZPOOL_PROP_SIZE, NULL, size, src); |
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116 spa_prop_add_list(*nvp, ZPOOL_PROP_USED, NULL, used, src); |
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117 spa_prop_add_list(*nvp, ZPOOL_PROP_AVAILABLE, NULL, size - used, src); |
| 5094 | 118 |
| 119 cap = (size == 0) ? 0 : (used * 100 / size); | |
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120 spa_prop_add_list(*nvp, ZPOOL_PROP_CAPACITY, NULL, cap, src); |
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121 |
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122 spa_prop_add_list(*nvp, ZPOOL_PROP_GUID, NULL, spa_guid(spa), src); |
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123 spa_prop_add_list(*nvp, ZPOOL_PROP_HEALTH, NULL, |
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124 spa->spa_root_vdev->vdev_state, src); |
| 5094 | 125 |
| 126 /* | |
| 127 * settable properties that are not stored in the pool property object. | |
| 128 */ | |
| 129 version = spa_version(spa); | |
| 130 if (version == zpool_prop_default_numeric(ZPOOL_PROP_VERSION)) | |
| 131 src = ZPROP_SRC_DEFAULT; | |
| 132 else | |
| 133 src = ZPROP_SRC_LOCAL; | |
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134 spa_prop_add_list(*nvp, ZPOOL_PROP_VERSION, NULL, version, src); |
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135 |
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136 if (spa->spa_root != NULL) |
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137 spa_prop_add_list(*nvp, ZPOOL_PROP_ALTROOT, spa->spa_root, |
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138 0, ZPROP_SRC_LOCAL); |
| 5094 | 139 |
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140 if ((dp = list_head(&spa->spa_config_list)) != NULL) { |
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141 if (dp->scd_path == NULL) { |
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142 spa_prop_add_list(*nvp, ZPOOL_PROP_CACHEFILE, |
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143 "none", 0, ZPROP_SRC_LOCAL); |
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144 } else if (strcmp(dp->scd_path, spa_config_path) != 0) { |
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145 spa_prop_add_list(*nvp, ZPOOL_PROP_CACHEFILE, |
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146 dp->scd_path, 0, ZPROP_SRC_LOCAL); |
| 5363 | 147 } |
| 148 } | |
| 5094 | 149 } |
| 150 | |
| 151 /* | |
| 152 * Get zpool property values. | |
| 153 */ | |
| 154 int | |
| 155 spa_prop_get(spa_t *spa, nvlist_t **nvp) | |
| 156 { | |
| 157 zap_cursor_t zc; | |
| 158 zap_attribute_t za; | |
| 159 objset_t *mos = spa->spa_meta_objset; | |
| 160 int err; | |
| 161 | |
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162 VERIFY(nvlist_alloc(nvp, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
| 5094 | 163 |
| 164 /* | |
| 165 * Get properties from the spa config. | |
| 166 */ | |
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167 spa_prop_get_config(spa, nvp); |
| 5094 | 168 |
| 169 mutex_enter(&spa->spa_props_lock); | |
| 170 /* If no pool property object, no more prop to get. */ | |
| 171 if (spa->spa_pool_props_object == 0) { | |
| 172 mutex_exit(&spa->spa_props_lock); | |
| 173 return (0); | |
| 174 } | |
| 175 | |
| 176 /* | |
| 177 * Get properties from the MOS pool property object. | |
| 178 */ | |
| 179 for (zap_cursor_init(&zc, mos, spa->spa_pool_props_object); | |
| 180 (err = zap_cursor_retrieve(&zc, &za)) == 0; | |
| 181 zap_cursor_advance(&zc)) { | |
| 182 uint64_t intval = 0; | |
| 183 char *strval = NULL; | |
| 184 zprop_source_t src = ZPROP_SRC_DEFAULT; | |
| 185 zpool_prop_t prop; | |
| 186 | |
| 187 if ((prop = zpool_name_to_prop(za.za_name)) == ZPROP_INVAL) | |
| 188 continue; | |
| 189 | |
| 190 switch (za.za_integer_length) { | |
| 191 case 8: | |
| 192 /* integer property */ | |
| 193 if (za.za_first_integer != | |
| 194 zpool_prop_default_numeric(prop)) | |
| 195 src = ZPROP_SRC_LOCAL; | |
| 196 | |
| 197 if (prop == ZPOOL_PROP_BOOTFS) { | |
| 198 dsl_pool_t *dp; | |
| 199 dsl_dataset_t *ds = NULL; | |
| 200 | |
| 201 dp = spa_get_dsl(spa); | |
| 202 rw_enter(&dp->dp_config_rwlock, RW_READER); | |
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203 if (err = dsl_dataset_hold_obj(dp, |
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204 za.za_first_integer, FTAG, &ds)) { |
| 5094 | 205 rw_exit(&dp->dp_config_rwlock); |
| 206 break; | |
| 207 } | |
| 208 | |
| 209 strval = kmem_alloc( | |
| 210 MAXNAMELEN + strlen(MOS_DIR_NAME) + 1, | |
| 211 KM_SLEEP); | |
| 212 dsl_dataset_name(ds, strval); | |
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213 dsl_dataset_rele(ds, FTAG); |
| 5094 | 214 rw_exit(&dp->dp_config_rwlock); |
| 215 } else { | |
| 216 strval = NULL; | |
| 217 intval = za.za_first_integer; | |
| 218 } | |
| 219 | |
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220 spa_prop_add_list(*nvp, prop, strval, intval, src); |
| 5094 | 221 |
| 222 if (strval != NULL) | |
| 223 kmem_free(strval, | |
| 224 MAXNAMELEN + strlen(MOS_DIR_NAME) + 1); | |
| 225 | |
| 226 break; | |
| 227 | |
| 228 case 1: | |
| 229 /* string property */ | |
| 230 strval = kmem_alloc(za.za_num_integers, KM_SLEEP); | |
| 231 err = zap_lookup(mos, spa->spa_pool_props_object, | |
| 232 za.za_name, 1, za.za_num_integers, strval); | |
| 233 if (err) { | |
| 234 kmem_free(strval, za.za_num_integers); | |
| 235 break; | |
| 236 } | |
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237 spa_prop_add_list(*nvp, prop, strval, 0, src); |
| 5094 | 238 kmem_free(strval, za.za_num_integers); |
| 239 break; | |
| 240 | |
| 241 default: | |
| 242 break; | |
| 243 } | |
| 244 } | |
| 245 zap_cursor_fini(&zc); | |
| 246 mutex_exit(&spa->spa_props_lock); | |
| 247 out: | |
| 248 if (err && err != ENOENT) { | |
| 249 nvlist_free(*nvp); | |
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250 *nvp = NULL; |
| 5094 | 251 return (err); |
| 252 } | |
| 253 | |
| 254 return (0); | |
| 255 } | |
| 256 | |
| 257 /* | |
| 258 * Validate the given pool properties nvlist and modify the list | |
| 259 * for the property values to be set. | |
| 260 */ | |
| 261 static int | |
| 262 spa_prop_validate(spa_t *spa, nvlist_t *props) | |
| 263 { | |
| 264 nvpair_t *elem; | |
| 265 int error = 0, reset_bootfs = 0; | |
| 266 uint64_t objnum; | |
| 267 | |
| 268 elem = NULL; | |
| 269 while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { | |
| 270 zpool_prop_t prop; | |
| 271 char *propname, *strval; | |
| 272 uint64_t intval; | |
| 273 objset_t *os; | |
| 5363 | 274 char *slash; |
| 5094 | 275 |
| 276 propname = nvpair_name(elem); | |
| 277 | |
| 278 if ((prop = zpool_name_to_prop(propname)) == ZPROP_INVAL) | |
| 279 return (EINVAL); | |
| 280 | |
| 281 switch (prop) { | |
| 282 case ZPOOL_PROP_VERSION: | |
| 283 error = nvpair_value_uint64(elem, &intval); | |
| 284 if (!error && | |
| 285 (intval < spa_version(spa) || intval > SPA_VERSION)) | |
| 286 error = EINVAL; | |
| 287 break; | |
| 288 | |
| 289 case ZPOOL_PROP_DELEGATION: | |
| 290 case ZPOOL_PROP_AUTOREPLACE: | |
| 291 error = nvpair_value_uint64(elem, &intval); | |
| 292 if (!error && intval > 1) | |
| 293 error = EINVAL; | |
| 294 break; | |
| 295 | |
| 296 case ZPOOL_PROP_BOOTFS: | |
| 297 if (spa_version(spa) < SPA_VERSION_BOOTFS) { | |
| 298 error = ENOTSUP; | |
| 299 break; | |
| 300 } | |
| 301 | |
| 302 /* | |
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303 * Make sure the vdev config is bootable |
| 5094 | 304 */ |
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305 if (!vdev_is_bootable(spa->spa_root_vdev)) { |
| 5094 | 306 error = ENOTSUP; |
| 307 break; | |
| 308 } | |
| 309 | |
| 310 reset_bootfs = 1; | |
| 311 | |
| 312 error = nvpair_value_string(elem, &strval); | |
| 313 | |
| 314 if (!error) { | |
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315 uint64_t compress; |
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316 |
| 5094 | 317 if (strval == NULL || strval[0] == '\0') { |
| 318 objnum = zpool_prop_default_numeric( | |
| 319 ZPOOL_PROP_BOOTFS); | |
| 320 break; | |
| 321 } | |
| 322 | |
| 323 if (error = dmu_objset_open(strval, DMU_OST_ZFS, | |
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324 DS_MODE_USER | DS_MODE_READONLY, &os)) |
| 5094 | 325 break; |
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326 |
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327 /* We don't support gzip bootable datasets */ |
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328 if ((error = dsl_prop_get_integer(strval, |
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329 zfs_prop_to_name(ZFS_PROP_COMPRESSION), |
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330 &compress, NULL)) == 0 && |
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331 !BOOTFS_COMPRESS_VALID(compress)) { |
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332 error = ENOTSUP; |
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333 } else { |
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334 objnum = dmu_objset_id(os); |
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335 } |
| 5094 | 336 dmu_objset_close(os); |
| 337 } | |
| 338 break; | |
| 5329 | 339 case ZPOOL_PROP_FAILUREMODE: |
| 340 error = nvpair_value_uint64(elem, &intval); | |
| 341 if (!error && (intval < ZIO_FAILURE_MODE_WAIT || | |
| 342 intval > ZIO_FAILURE_MODE_PANIC)) | |
| 343 error = EINVAL; | |
| 344 | |
| 345 /* | |
| 346 * This is a special case which only occurs when | |
| 347 * the pool has completely failed. This allows | |
| 348 * the user to change the in-core failmode property | |
| 349 * without syncing it out to disk (I/Os might | |
| 350 * currently be blocked). We do this by returning | |
| 351 * EIO to the caller (spa_prop_set) to trick it | |
| 352 * into thinking we encountered a property validation | |
| 353 * error. | |
| 354 */ | |
| 355 if (!error && spa_state(spa) == POOL_STATE_IO_FAILURE) { | |
| 356 spa->spa_failmode = intval; | |
| 357 error = EIO; | |
| 358 } | |
| 359 break; | |
| 5363 | 360 |
| 361 case ZPOOL_PROP_CACHEFILE: | |
| 362 if ((error = nvpair_value_string(elem, &strval)) != 0) | |
| 363 break; | |
| 364 | |
| 365 if (strval[0] == '\0') | |
| 366 break; | |
| 367 | |
| 368 if (strcmp(strval, "none") == 0) | |
| 369 break; | |
| 370 | |
| 371 if (strval[0] != '/') { | |
| 372 error = EINVAL; | |
| 373 break; | |
| 374 } | |
| 375 | |
| 376 slash = strrchr(strval, '/'); | |
| 377 ASSERT(slash != NULL); | |
| 378 | |
| 379 if (slash[1] == '\0' || strcmp(slash, "/.") == 0 || | |
| 380 strcmp(slash, "/..") == 0) | |
| 381 error = EINVAL; | |
| 382 break; | |
| 5094 | 383 } |
| 384 | |
| 385 if (error) | |
| 386 break; | |
| 387 } | |
| 388 | |
| 389 if (!error && reset_bootfs) { | |
| 390 error = nvlist_remove(props, | |
| 391 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), DATA_TYPE_STRING); | |
| 392 | |
| 393 if (!error) { | |
| 394 error = nvlist_add_uint64(props, | |
| 395 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), objnum); | |
| 396 } | |
| 397 } | |
| 398 | |
| 399 return (error); | |
| 400 } | |
| 401 | |
| 402 int | |
| 403 spa_prop_set(spa_t *spa, nvlist_t *nvp) | |
| 404 { | |
| 405 int error; | |
| 406 | |
| 407 if ((error = spa_prop_validate(spa, nvp)) != 0) | |
| 408 return (error); | |
| 409 | |
| 410 return (dsl_sync_task_do(spa_get_dsl(spa), NULL, spa_sync_props, | |
| 411 spa, nvp, 3)); | |
| 412 } | |
| 413 | |
| 414 /* | |
| 415 * If the bootfs property value is dsobj, clear it. | |
| 416 */ | |
| 417 void | |
| 418 spa_prop_clear_bootfs(spa_t *spa, uint64_t dsobj, dmu_tx_t *tx) | |
| 419 { | |
| 420 if (spa->spa_bootfs == dsobj && spa->spa_pool_props_object != 0) { | |
| 421 VERIFY(zap_remove(spa->spa_meta_objset, | |
| 422 spa->spa_pool_props_object, | |
| 423 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), tx) == 0); | |
| 424 spa->spa_bootfs = 0; | |
| 425 } | |
| 426 } | |
| 427 | |
| 789 | 428 /* |
| 429 * ========================================================================== | |
| 430 * SPA state manipulation (open/create/destroy/import/export) | |
| 431 * ========================================================================== | |
| 432 */ | |
| 433 | |
| 1544 | 434 static int |
| 435 spa_error_entry_compare(const void *a, const void *b) | |
| 436 { | |
| 437 spa_error_entry_t *sa = (spa_error_entry_t *)a; | |
| 438 spa_error_entry_t *sb = (spa_error_entry_t *)b; | |
| 439 int ret; | |
| 440 | |
| 441 ret = bcmp(&sa->se_bookmark, &sb->se_bookmark, | |
| 442 sizeof (zbookmark_t)); | |
| 443 | |
| 444 if (ret < 0) | |
| 445 return (-1); | |
| 446 else if (ret > 0) | |
| 447 return (1); | |
| 448 else | |
| 449 return (0); | |
| 450 } | |
| 451 | |
| 452 /* | |
| 453 * Utility function which retrieves copies of the current logs and | |
| 454 * re-initializes them in the process. | |
| 455 */ | |
| 456 void | |
| 457 spa_get_errlists(spa_t *spa, avl_tree_t *last, avl_tree_t *scrub) | |
| 458 { | |
| 459 ASSERT(MUTEX_HELD(&spa->spa_errlist_lock)); | |
| 460 | |
| 461 bcopy(&spa->spa_errlist_last, last, sizeof (avl_tree_t)); | |
| 462 bcopy(&spa->spa_errlist_scrub, scrub, sizeof (avl_tree_t)); | |
| 463 | |
| 464 avl_create(&spa->spa_errlist_scrub, | |
| 465 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
| 466 offsetof(spa_error_entry_t, se_avl)); | |
| 467 avl_create(&spa->spa_errlist_last, | |
| 468 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
| 469 offsetof(spa_error_entry_t, se_avl)); | |
| 470 } | |
| 471 | |
| 789 | 472 /* |
| 473 * Activate an uninitialized pool. | |
| 474 */ | |
| 475 static void | |
| 476 spa_activate(spa_t *spa) | |
| 477 { | |
| 478 int t; | |
| 479 | |
| 480 ASSERT(spa->spa_state == POOL_STATE_UNINITIALIZED); | |
| 481 | |
| 482 spa->spa_state = POOL_STATE_ACTIVE; | |
| 483 | |
| 484 spa->spa_normal_class = metaslab_class_create(); | |
| 4527 | 485 spa->spa_log_class = metaslab_class_create(); |
| 789 | 486 |
| 487 for (t = 0; t < ZIO_TYPES; t++) { | |
| 488 spa->spa_zio_issue_taskq[t] = taskq_create("spa_zio_issue", | |
| 2986 | 489 zio_taskq_threads, maxclsyspri, 50, INT_MAX, |
| 789 | 490 TASKQ_PREPOPULATE); |
| 491 spa->spa_zio_intr_taskq[t] = taskq_create("spa_zio_intr", | |
| 2986 | 492 zio_taskq_threads, maxclsyspri, 50, INT_MAX, |
| 789 | 493 TASKQ_PREPOPULATE); |
| 494 } | |
| 495 | |
| 496 list_create(&spa->spa_dirty_list, sizeof (vdev_t), | |
| 497 offsetof(vdev_t, vdev_dirty_node)); | |
| 5329 | 498 list_create(&spa->spa_zio_list, sizeof (zio_t), |
| 499 offsetof(zio_t, zio_link_node)); | |
| 789 | 500 |
| 501 txg_list_create(&spa->spa_vdev_txg_list, | |
| 502 offsetof(struct vdev, vdev_txg_node)); | |
| 1544 | 503 |
| 504 avl_create(&spa->spa_errlist_scrub, | |
| 505 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
| 506 offsetof(spa_error_entry_t, se_avl)); | |
| 507 avl_create(&spa->spa_errlist_last, | |
| 508 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
| 509 offsetof(spa_error_entry_t, se_avl)); | |
| 789 | 510 } |
| 511 | |
| 512 /* | |
| 513 * Opposite of spa_activate(). | |
| 514 */ | |
| 515 static void | |
| 516 spa_deactivate(spa_t *spa) | |
| 517 { | |
| 518 int t; | |
| 519 | |
| 520 ASSERT(spa->spa_sync_on == B_FALSE); | |
| 521 ASSERT(spa->spa_dsl_pool == NULL); | |
| 522 ASSERT(spa->spa_root_vdev == NULL); | |
| 523 | |
| 524 ASSERT(spa->spa_state != POOL_STATE_UNINITIALIZED); | |
| 525 | |
| 526 txg_list_destroy(&spa->spa_vdev_txg_list); | |
| 527 | |
| 528 list_destroy(&spa->spa_dirty_list); | |
| 5329 | 529 list_destroy(&spa->spa_zio_list); |
| 789 | 530 |
| 531 for (t = 0; t < ZIO_TYPES; t++) { | |
| 532 taskq_destroy(spa->spa_zio_issue_taskq[t]); | |
| 533 taskq_destroy(spa->spa_zio_intr_taskq[t]); | |
| 534 spa->spa_zio_issue_taskq[t] = NULL; | |
| 535 spa->spa_zio_intr_taskq[t] = NULL; | |
| 536 } | |
| 537 | |
| 538 metaslab_class_destroy(spa->spa_normal_class); | |
| 539 spa->spa_normal_class = NULL; | |
| 540 | |
| 4527 | 541 metaslab_class_destroy(spa->spa_log_class); |
| 542 spa->spa_log_class = NULL; | |
| 543 | |
| 1544 | 544 /* |
| 545 * If this was part of an import or the open otherwise failed, we may | |
| 546 * still have errors left in the queues. Empty them just in case. | |
| 547 */ | |
| 548 spa_errlog_drain(spa); | |
| 549 | |
| 550 avl_destroy(&spa->spa_errlist_scrub); | |
| 551 avl_destroy(&spa->spa_errlist_last); | |
| 552 | |
| 789 | 553 spa->spa_state = POOL_STATE_UNINITIALIZED; |
| 554 } | |
| 555 | |
| 556 /* | |
| 557 * Verify a pool configuration, and construct the vdev tree appropriately. This | |
| 558 * will create all the necessary vdevs in the appropriate layout, with each vdev | |
| 559 * in the CLOSED state. This will prep the pool before open/creation/import. | |
| 560 * All vdev validation is done by the vdev_alloc() routine. | |
| 561 */ | |
| 2082 | 562 static int |
| 563 spa_config_parse(spa_t *spa, vdev_t **vdp, nvlist_t *nv, vdev_t *parent, | |
| 564 uint_t id, int atype) | |
| 789 | 565 { |
| 566 nvlist_t **child; | |
| 567 uint_t c, children; | |
| 2082 | 568 int error; |
| 569 | |
| 570 if ((error = vdev_alloc(spa, vdp, nv, parent, id, atype)) != 0) | |
| 571 return (error); | |
| 572 | |
| 573 if ((*vdp)->vdev_ops->vdev_op_leaf) | |
| 574 return (0); | |
| 789 | 575 |
| 576 if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, | |
| 577 &child, &children) != 0) { | |
| 2082 | 578 vdev_free(*vdp); |
| 579 *vdp = NULL; | |
| 580 return (EINVAL); | |
| 789 | 581 } |
| 582 | |
| 583 for (c = 0; c < children; c++) { | |
| 2082 | 584 vdev_t *vd; |
| 585 if ((error = spa_config_parse(spa, &vd, child[c], *vdp, c, | |
| 586 atype)) != 0) { | |
| 587 vdev_free(*vdp); | |
| 588 *vdp = NULL; | |
| 589 return (error); | |
| 789 | 590 } |
| 591 } | |
| 592 | |
| 2082 | 593 ASSERT(*vdp != NULL); |
| 594 | |
| 595 return (0); | |
| 789 | 596 } |
| 597 | |
| 598 /* | |
| 599 * Opposite of spa_load(). | |
| 600 */ | |
| 601 static void | |
| 602 spa_unload(spa_t *spa) | |
| 603 { | |
| 2082 | 604 int i; |
| 605 | |
| 789 | 606 /* |
| 1544 | 607 * Stop async tasks. |
| 608 */ | |
| 609 spa_async_suspend(spa); | |
| 610 | |
| 611 /* | |
| 789 | 612 * Stop syncing. |
| 613 */ | |
| 614 if (spa->spa_sync_on) { | |
| 615 txg_sync_stop(spa->spa_dsl_pool); | |
| 616 spa->spa_sync_on = B_FALSE; | |
| 617 } | |
| 618 | |
| 619 /* | |
| 620 * Wait for any outstanding prefetch I/O to complete. | |
| 621 */ | |
| 1544 | 622 spa_config_enter(spa, RW_WRITER, FTAG); |
| 623 spa_config_exit(spa, FTAG); | |
| 789 | 624 |
| 625 /* | |
| 5450 | 626 * Drop and purge level 2 cache |
| 627 */ | |
| 628 spa_l2cache_drop(spa); | |
| 629 | |
| 630 /* | |
| 789 | 631 * Close the dsl pool. |
| 632 */ | |
| 633 if (spa->spa_dsl_pool) { | |
| 634 dsl_pool_close(spa->spa_dsl_pool); | |
| 635 spa->spa_dsl_pool = NULL; | |
| 636 } | |
| 637 | |
| 638 /* | |
| 639 * Close all vdevs. | |
| 640 */ | |
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641 if (spa->spa_root_vdev) |
| 789 | 642 vdev_free(spa->spa_root_vdev); |
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643 ASSERT(spa->spa_root_vdev == NULL); |
| 1544 | 644 |
| 5450 | 645 for (i = 0; i < spa->spa_spares.sav_count; i++) |
| 646 vdev_free(spa->spa_spares.sav_vdevs[i]); | |
| 647 if (spa->spa_spares.sav_vdevs) { | |
| 648 kmem_free(spa->spa_spares.sav_vdevs, | |
| 649 spa->spa_spares.sav_count * sizeof (void *)); | |
| 650 spa->spa_spares.sav_vdevs = NULL; | |
| 651 } | |
| 652 if (spa->spa_spares.sav_config) { | |
| 653 nvlist_free(spa->spa_spares.sav_config); | |
| 654 spa->spa_spares.sav_config = NULL; | |
| 2082 | 655 } |
| 5450 | 656 |
| 657 for (i = 0; i < spa->spa_l2cache.sav_count; i++) | |
| 658 vdev_free(spa->spa_l2cache.sav_vdevs[i]); | |
| 659 if (spa->spa_l2cache.sav_vdevs) { | |
| 660 kmem_free(spa->spa_l2cache.sav_vdevs, | |
| 661 spa->spa_l2cache.sav_count * sizeof (void *)); | |
| 662 spa->spa_l2cache.sav_vdevs = NULL; | |
| 663 } | |
| 664 if (spa->spa_l2cache.sav_config) { | |
| 665 nvlist_free(spa->spa_l2cache.sav_config); | |
| 666 spa->spa_l2cache.sav_config = NULL; | |
| 2082 | 667 } |
| 668 | |
| 1544 | 669 spa->spa_async_suspended = 0; |
| 789 | 670 } |
| 671 | |
| 672 /* | |
| 2082 | 673 * Load (or re-load) the current list of vdevs describing the active spares for |
| 674 * this pool. When this is called, we have some form of basic information in | |
| 5450 | 675 * 'spa_spares.sav_config'. We parse this into vdevs, try to open them, and |
| 676 * then re-generate a more complete list including status information. | |
| 2082 | 677 */ |
| 678 static void | |
| 679 spa_load_spares(spa_t *spa) | |
| 680 { | |
| 681 nvlist_t **spares; | |
| 682 uint_t nspares; | |
| 683 int i; | |
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684 vdev_t *vd, *tvd; |
| 2082 | 685 |
| 686 /* | |
| 687 * First, close and free any existing spare vdevs. | |
| 688 */ | |
| 5450 | 689 for (i = 0; i < spa->spa_spares.sav_count; i++) { |
| 690 vd = spa->spa_spares.sav_vdevs[i]; | |
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691 |
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692 /* Undo the call to spa_activate() below */ |
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693 if ((tvd = spa_lookup_by_guid(spa, vd->vdev_guid, |
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694 B_FALSE)) != NULL && tvd->vdev_isspare) |
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695 spa_spare_remove(tvd); |
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696 vdev_close(vd); |
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697 vdev_free(vd); |
| 2082 | 698 } |
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699 |
| 5450 | 700 if (spa->spa_spares.sav_vdevs) |
| 701 kmem_free(spa->spa_spares.sav_vdevs, | |
| 702 spa->spa_spares.sav_count * sizeof (void *)); | |
| 703 | |
| 704 if (spa->spa_spares.sav_config == NULL) | |
| 2082 | 705 nspares = 0; |
| 706 else | |
| 5450 | 707 VERIFY(nvlist_lookup_nvlist_array(spa->spa_spares.sav_config, |
| 2082 | 708 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); |
| 709 | |
| 5450 | 710 spa->spa_spares.sav_count = (int)nspares; |
| 711 spa->spa_spares.sav_vdevs = NULL; | |
| 2082 | 712 |
| 713 if (nspares == 0) | |
| 714 return; | |
| 715 | |
| 716 /* | |
| 717 * Construct the array of vdevs, opening them to get status in the | |
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718 * process. For each spare, there is potentially two different vdev_t |
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719 * structures associated with it: one in the list of spares (used only |
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720 * for basic validation purposes) and one in the active vdev |
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721 * configuration (if it's spared in). During this phase we open and |
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722 * validate each vdev on the spare list. If the vdev also exists in the |
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723 * active configuration, then we also mark this vdev as an active spare. |
| 2082 | 724 */ |
| 5450 | 725 spa->spa_spares.sav_vdevs = kmem_alloc(nspares * sizeof (void *), |
| 726 KM_SLEEP); | |
| 727 for (i = 0; i < spa->spa_spares.sav_count; i++) { | |
| 2082 | 728 VERIFY(spa_config_parse(spa, &vd, spares[i], NULL, 0, |
| 729 VDEV_ALLOC_SPARE) == 0); | |
| 730 ASSERT(vd != NULL); | |
| 731 | |
| 5450 | 732 spa->spa_spares.sav_vdevs[i] = vd; |
| 2082 | 733 |
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734 if ((tvd = spa_lookup_by_guid(spa, vd->vdev_guid, |
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735 B_FALSE)) != NULL) { |
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736 if (!tvd->vdev_isspare) |
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737 spa_spare_add(tvd); |
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738 |
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739 /* |
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740 * We only mark the spare active if we were successfully |
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741 * able to load the vdev. Otherwise, importing a pool |
|
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742 * with a bad active spare would result in strange |
|
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743 * behavior, because multiple pool would think the spare |
|
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744 * is actively in use. |
|
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745 * |
|
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746 * There is a vulnerability here to an equally bizarre |
|
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|
747 * circumstance, where a dead active spare is later |
|
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748 * brought back to life (onlined or otherwise). Given |
|
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749 * the rarity of this scenario, and the extra complexity |
|
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750 * it adds, we ignore the possibility. |
|
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|
751 */ |
|
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|
752 if (!vdev_is_dead(tvd)) |
|
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753 spa_spare_activate(tvd); |
|
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754 } |
|
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|
755 |
| 2082 | 756 if (vdev_open(vd) != 0) |
| 757 continue; | |
| 758 | |
| 759 vd->vdev_top = vd; | |
| 5450 | 760 if (vdev_validate_aux(vd) == 0) |
| 761 spa_spare_add(vd); | |
| 2082 | 762 } |
| 763 | |
| 764 /* | |
| 765 * Recompute the stashed list of spares, with status information | |
| 766 * this time. | |
| 767 */ | |
| 5450 | 768 VERIFY(nvlist_remove(spa->spa_spares.sav_config, ZPOOL_CONFIG_SPARES, |
| 2082 | 769 DATA_TYPE_NVLIST_ARRAY) == 0); |
| 770 | |
| 5450 | 771 spares = kmem_alloc(spa->spa_spares.sav_count * sizeof (void *), |
| 772 KM_SLEEP); | |
| 773 for (i = 0; i < spa->spa_spares.sav_count; i++) | |
| 774 spares[i] = vdev_config_generate(spa, | |
| 775 spa->spa_spares.sav_vdevs[i], B_TRUE, B_TRUE, B_FALSE); | |
| 776 VERIFY(nvlist_add_nvlist_array(spa->spa_spares.sav_config, | |
| 777 ZPOOL_CONFIG_SPARES, spares, spa->spa_spares.sav_count) == 0); | |
| 778 for (i = 0; i < spa->spa_spares.sav_count; i++) | |
| 2082 | 779 nvlist_free(spares[i]); |
| 5450 | 780 kmem_free(spares, spa->spa_spares.sav_count * sizeof (void *)); |
| 781 } | |
| 782 | |
| 783 /* | |
| 784 * Load (or re-load) the current list of vdevs describing the active l2cache for | |
| 785 * this pool. When this is called, we have some form of basic information in | |
| 786 * 'spa_l2cache.sav_config'. We parse this into vdevs, try to open them, and | |
| 787 * then re-generate a more complete list including status information. | |
| 788 * Devices which are already active have their details maintained, and are | |
| 789 * not re-opened. | |
| 790 */ | |
| 791 static void | |
| 792 spa_load_l2cache(spa_t *spa) | |
| 793 { | |
| 794 nvlist_t **l2cache; | |
| 795 uint_t nl2cache; | |
| 796 int i, j, oldnvdevs; | |
|
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797 uint64_t guid, size; |
| 5450 | 798 vdev_t *vd, **oldvdevs, **newvdevs; |
| 799 spa_aux_vdev_t *sav = &spa->spa_l2cache; | |
| 800 | |
| 801 if (sav->sav_config != NULL) { | |
| 802 VERIFY(nvlist_lookup_nvlist_array(sav->sav_config, | |
| 803 ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0); | |
| 804 newvdevs = kmem_alloc(nl2cache * sizeof (void *), KM_SLEEP); | |
| 805 } else { | |
| 806 nl2cache = 0; | |
| 807 } | |
| 808 | |
| 809 oldvdevs = sav->sav_vdevs; | |
| 810 oldnvdevs = sav->sav_count; | |
| 811 sav->sav_vdevs = NULL; | |
| 812 sav->sav_count = 0; | |
| 813 | |
| 814 /* | |
| 815 * Process new nvlist of vdevs. | |
| 816 */ | |
| 817 for (i = 0; i < nl2cache; i++) { | |
| 818 VERIFY(nvlist_lookup_uint64(l2cache[i], ZPOOL_CONFIG_GUID, | |
| 819 &guid) == 0); | |
| 820 | |
| 821 newvdevs[i] = NULL; | |
| 822 for (j = 0; j < oldnvdevs; j++) { | |
| 823 vd = oldvdevs[j]; | |
| 824 if (vd != NULL && guid == vd->vdev_guid) { | |
| 825 /* | |
| 826 * Retain previous vdev for add/remove ops. | |
| 827 */ | |
| 828 newvdevs[i] = vd; | |
| 829 oldvdevs[j] = NULL; | |
| 830 break; | |
| 831 } | |
| 832 } | |
| 833 | |
| 834 if (newvdevs[i] == NULL) { | |
| 835 /* | |
| 836 * Create new vdev | |
| 837 */ | |
| 838 VERIFY(spa_config_parse(spa, &vd, l2cache[i], NULL, 0, | |
| 839 VDEV_ALLOC_L2CACHE) == 0); | |
| 840 ASSERT(vd != NULL); | |
| 841 newvdevs[i] = vd; | |
| 842 | |
| 843 /* | |
| 844 * Commit this vdev as an l2cache device, | |
| 845 * even if it fails to open. | |
| 846 */ | |
| 847 spa_l2cache_add(vd); | |
| 848 | |
|
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849 vd->vdev_top = vd; |
|
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|
850 vd->vdev_aux = sav; |
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|
851 |
|
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852 spa_l2cache_activate(vd); |
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|
853 |
| 5450 | 854 if (vdev_open(vd) != 0) |
| 855 continue; | |
| 856 | |
| 857 (void) vdev_validate_aux(vd); | |
| 858 | |
| 859 if (!vdev_is_dead(vd)) { | |
| 860 size = vdev_get_rsize(vd); | |
|
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861 l2arc_add_vdev(spa, vd, |
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862 VDEV_LABEL_START_SIZE, |
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|
863 size - VDEV_LABEL_START_SIZE); |
| 5450 | 864 } |
| 865 } | |
| 866 } | |
| 867 | |
| 868 /* | |
| 869 * Purge vdevs that were dropped | |
| 870 */ | |
| 871 for (i = 0; i < oldnvdevs; i++) { | |
| 872 uint64_t pool; | |
| 873 | |
| 874 vd = oldvdevs[i]; | |
| 875 if (vd != NULL) { | |
| 876 if (spa_mode & FWRITE && | |
| 877 spa_l2cache_exists(vd->vdev_guid, &pool) && | |
|
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878 pool != 0ULL && |
|
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|
879 l2arc_vdev_present(vd)) { |
| 5450 | 880 l2arc_remove_vdev(vd); |
| 881 } | |
| 882 (void) vdev_close(vd); | |
| 883 spa_l2cache_remove(vd); | |
| 884 } | |
| 885 } | |
| 886 | |
| 887 if (oldvdevs) | |
| 888 kmem_free(oldvdevs, oldnvdevs * sizeof (void *)); | |
| 889 | |
| 890 if (sav->sav_config == NULL) | |
| 891 goto out; | |
| 892 | |
| 893 sav->sav_vdevs = newvdevs; | |
| 894 sav->sav_count = (int)nl2cache; | |
| 895 | |
| 896 /* | |
| 897 * Recompute the stashed list of l2cache devices, with status | |
| 898 * information this time. | |
| 899 */ | |
| 900 VERIFY(nvlist_remove(sav->sav_config, ZPOOL_CONFIG_L2CACHE, | |
| 901 DATA_TYPE_NVLIST_ARRAY) == 0); | |
| 902 | |
| 903 l2cache = kmem_alloc(sav->sav_count * sizeof (void *), KM_SLEEP); | |
| 904 for (i = 0; i < sav->sav_count; i++) | |
| 905 l2cache[i] = vdev_config_generate(spa, | |
| 906 sav->sav_vdevs[i], B_TRUE, B_FALSE, B_TRUE); | |
| 907 VERIFY(nvlist_add_nvlist_array(sav->sav_config, | |
| 908 ZPOOL_CONFIG_L2CACHE, l2cache, sav->sav_count) == 0); | |
| 909 out: | |
| 910 for (i = 0; i < sav->sav_count; i++) | |
| 911 nvlist_free(l2cache[i]); | |
| 912 if (sav->sav_count) | |
| 913 kmem_free(l2cache, sav->sav_count * sizeof (void *)); | |
| 2082 | 914 } |
| 915 | |
| 916 static int | |
| 917 load_nvlist(spa_t *spa, uint64_t obj, nvlist_t **value) | |
| 918 { | |
| 919 dmu_buf_t *db; | |
| 920 char *packed = NULL; | |
| 921 size_t nvsize = 0; | |
| 922 int error; | |
| 923 *value = NULL; | |
| 924 | |
| 925 VERIFY(0 == dmu_bonus_hold(spa->spa_meta_objset, obj, FTAG, &db)); | |
| 926 nvsize = *(uint64_t *)db->db_data; | |
| 927 dmu_buf_rele(db, FTAG); | |
| 928 | |
| 929 packed = kmem_alloc(nvsize, KM_SLEEP); | |
| 930 error = dmu_read(spa->spa_meta_objset, obj, 0, nvsize, packed); | |
| 931 if (error == 0) | |
| 932 error = nvlist_unpack(packed, nvsize, value, 0); | |
| 933 kmem_free(packed, nvsize); | |
| 934 | |
| 935 return (error); | |
| 936 } | |
| 937 | |
| 938 /* | |
| 4451 | 939 * Checks to see if the given vdev could not be opened, in which case we post a |
| 940 * sysevent to notify the autoreplace code that the device has been removed. | |
| 941 */ | |
| 942 static void | |
| 943 spa_check_removed(vdev_t *vd) | |
| 944 { | |
| 945 int c; | |
| 946 | |
| 947 for (c = 0; c < vd->vdev_children; c++) | |
| 948 spa_check_removed(vd->vdev_child[c]); | |
| 949 | |
| 950 if (vd->vdev_ops->vdev_op_leaf && vdev_is_dead(vd)) { | |
| 951 zfs_post_autoreplace(vd->vdev_spa, vd); | |
| 952 spa_event_notify(vd->vdev_spa, vd, ESC_ZFS_VDEV_CHECK); | |
| 953 } | |
| 954 } | |
| 955 | |
| 956 /* | |
| 7294 | 957 * Check for missing log devices |
| 958 */ | |
| 959 int | |
| 960 spa_check_logs(spa_t *spa) | |
| 961 { | |
| 962 switch (spa->spa_log_state) { | |
| 963 case SPA_LOG_MISSING: | |
| 964 /* need to recheck in case slog has been restored */ | |
| 965 case SPA_LOG_UNKNOWN: | |
| 966 if (dmu_objset_find(spa->spa_name, zil_check_log_chain, NULL, | |
| 967 DS_FIND_CHILDREN)) { | |
| 968 spa->spa_log_state = SPA_LOG_MISSING; | |
| 969 return (1); | |
| 970 } | |
| 971 break; | |
| 972 | |
| 973 case SPA_LOG_CLEAR: | |
| 974 (void) dmu_objset_find(spa->spa_name, zil_clear_log_chain, NULL, | |
| 975 DS_FIND_CHILDREN); | |
| 976 break; | |
| 977 } | |
| 978 spa->spa_log_state = SPA_LOG_GOOD; | |
| 979 return (0); | |
| 980 } | |
| 981 | |
| 982 /* | |
| 789 | 983 * Load an existing storage pool, using the pool's builtin spa_config as a |
| 1544 | 984 * source of configuration information. |
| 789 | 985 */ |
| 986 static int | |
| 1544 | 987 spa_load(spa_t *spa, nvlist_t *config, spa_load_state_t state, int mosconfig) |
| 789 | 988 { |
| 989 int error = 0; | |
| 990 nvlist_t *nvroot = NULL; | |
| 991 vdev_t *rvd; | |
| 992 uberblock_t *ub = &spa->spa_uberblock; | |
|
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|
993 uint64_t config_cache_txg = spa->spa_config_txg; |
| 789 | 994 uint64_t pool_guid; |
| 2082 | 995 uint64_t version; |
| 789 | 996 zio_t *zio; |
| 4451 | 997 uint64_t autoreplace = 0; |
| 7294 | 998 char *ereport = FM_EREPORT_ZFS_POOL; |
| 789 | 999 |
| 1544 | 1000 spa->spa_load_state = state; |
|
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diff
changeset
|
1001 |
| 789 | 1002 if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvroot) || |
| 1733 | 1003 nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &pool_guid)) { |
| 1544 | 1004 error = EINVAL; |
| 1005 goto out; | |
| 1006 } | |
| 789 | 1007 |
| 2082 | 1008 /* |
| 1009 * Versioning wasn't explicitly added to the label until later, so if | |
| 1010 * it's not present treat it as the initial version. | |
| 1011 */ | |
| 1012 if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION, &version) != 0) | |
| 4577 | 1013 version = SPA_VERSION_INITIAL; |
| 2082 | 1014 |
| 1733 | 1015 (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG, |
| 1016 &spa->spa_config_txg); | |
| 1017 | |
|
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|
1018 if ((state == SPA_LOAD_IMPORT || state == SPA_LOAD_TRYIMPORT) && |
| 1544 | 1019 spa_guid_exists(pool_guid, 0)) { |
| 1020 error = EEXIST; | |
| 1021 goto out; | |
| 1022 } | |
| 789 | 1023 |
|
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|
1024 spa->spa_load_guid = pool_guid; |
|
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diff
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|
1025 |
| 789 | 1026 /* |
| 2082 | 1027 * Parse the configuration into a vdev tree. We explicitly set the |
| 1028 * value that will be returned by spa_version() since parsing the | |
| 1029 * configuration requires knowing the version number. | |
| 789 | 1030 */ |
| 1544 | 1031 spa_config_enter(spa, RW_WRITER, FTAG); |
| 2082 | 1032 spa->spa_ubsync.ub_version = version; |
| 1033 error = spa_config_parse(spa, &rvd, nvroot, NULL, 0, VDEV_ALLOC_LOAD); | |
| 1544 | 1034 spa_config_exit(spa, FTAG); |
| 789 | 1035 |
| 2082 | 1036 if (error != 0) |
| 1544 | 1037 goto out; |
| 789 | 1038 |
|
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diff
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1039 ASSERT(spa->spa_root_vdev == rvd); |
| 789 | 1040 ASSERT(spa_guid(spa) == pool_guid); |
| 1041 | |
| 1042 /* | |
| 1043 * Try to open all vdevs, loading each label in the process. | |
| 1044 */ | |
|
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1045 error = vdev_open(rvd); |
|
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1046 if (error != 0) |
| 1544 | 1047 goto out; |
| 789 | 1048 |
| 1049 /* | |
|
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1050 * Validate the labels for all leaf vdevs. We need to grab the config |
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1051 * lock because all label I/O is done with the ZIO_FLAG_CONFIG_HELD |
|
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1052 * flag. |
|
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1053 */ |
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1054 spa_config_enter(spa, RW_READER, FTAG); |
|
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1055 error = vdev_validate(rvd); |
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1056 spa_config_exit(spa, FTAG); |
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1057 |
|
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1058 if (error != 0) |
|
1986
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1059 goto out; |
|
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|
1060 |
|
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|
1061 if (rvd->vdev_state <= VDEV_STATE_CANT_OPEN) { |
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1062 error = ENXIO; |
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1063 goto out; |
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|
1064 } |
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1065 |
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|
1066 /* |
| 789 | 1067 * Find the best uberblock. |
| 1068 */ | |
| 1069 bzero(ub, sizeof (uberblock_t)); | |
| 1070 | |
| 1071 zio = zio_root(spa, NULL, NULL, | |
| 1072 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE); | |
| 1073 vdev_uberblock_load(zio, rvd, ub); | |
| 1074 error = zio_wait(zio); | |
| 1075 | |
| 1076 /* | |
| 1077 * If we weren't able to find a single valid uberblock, return failure. | |
| 1078 */ | |
| 1079 if (ub->ub_txg == 0) { | |
| 1760 | 1080 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1081 VDEV_AUX_CORRUPT_DATA); | |
| 1544 | 1082 error = ENXIO; |
| 1083 goto out; | |
| 1084 } | |
| 1085 | |
| 1086 /* | |
| 1087 * If the pool is newer than the code, we can't open it. | |
| 1088 */ | |
| 4577 | 1089 if (ub->ub_version > SPA_VERSION) { |
| 1760 | 1090 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1091 VDEV_AUX_VERSION_NEWER); | |
| 1544 | 1092 error = ENOTSUP; |
| 1093 goto out; | |
| 789 | 1094 } |
| 1095 | |
| 1096 /* | |
| 1097 * If the vdev guid sum doesn't match the uberblock, we have an | |
| 1098 * incomplete configuration. | |
| 1099 */ | |
| 1732 | 1100 if (rvd->vdev_guid_sum != ub->ub_guid_sum && mosconfig) { |
| 1544 | 1101 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1102 VDEV_AUX_BAD_GUID_SUM); | |
| 1103 error = ENXIO; | |
| 1104 goto out; | |
| 789 | 1105 } |
| 1106 | |
| 1107 /* | |
| 1108 * Initialize internal SPA structures. | |
| 1109 */ | |
| 1110 spa->spa_state = POOL_STATE_ACTIVE; | |
| 1111 spa->spa_ubsync = spa->spa_uberblock; | |
| 1112 spa->spa_first_txg = spa_last_synced_txg(spa) + 1; | |
| 1544 | 1113 error = dsl_pool_open(spa, spa->spa_first_txg, &spa->spa_dsl_pool); |
| 1114 if (error) { | |
| 1115 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1116 VDEV_AUX_CORRUPT_DATA); | |
| 1117 goto out; | |
| 1118 } | |
| 789 | 1119 spa->spa_meta_objset = spa->spa_dsl_pool->dp_meta_objset; |
| 1120 | |
| 1544 | 1121 if (zap_lookup(spa->spa_meta_objset, |
| 789 | 1122 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CONFIG, |
| 1544 | 1123 sizeof (uint64_t), 1, &spa->spa_config_object) != 0) { |
| 1124 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1125 VDEV_AUX_CORRUPT_DATA); | |
| 1126 error = EIO; | |
| 1127 goto out; | |
| 1128 } | |
| 789 | 1129 |
| 1130 if (!mosconfig) { | |
| 2082 | 1131 nvlist_t *newconfig; |
|
3975
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changeset
|
1132 uint64_t hostid; |
| 2082 | 1133 |
| 1134 if (load_nvlist(spa, spa->spa_config_object, &newconfig) != 0) { | |
| 1544 | 1135 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1136 VDEV_AUX_CORRUPT_DATA); | |
| 1137 error = EIO; | |
| 1138 goto out; | |
| 1139 } | |
| 789 | 1140 |
|
3975
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6282725 hostname/hostid should be stored in the label
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|
1141 if (nvlist_lookup_uint64(newconfig, ZPOOL_CONFIG_HOSTID, |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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changeset
|
1142 &hostid) == 0) { |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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|
1143 char *hostname; |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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|
1144 unsigned long myhostid = 0; |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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|
1145 |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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|
1146 VERIFY(nvlist_lookup_string(newconfig, |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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changeset
|
1147 ZPOOL_CONFIG_HOSTNAME, &hostname) == 0); |
|
6674f5d79069
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changeset
|
1148 |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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changeset
|
1149 (void) ddi_strtoul(hw_serial, NULL, 10, &myhostid); |
|
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6553537 zfs root fails to boot from a snv_63+zfsboot-pfinstall netinstall image
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|
1150 if (hostid != 0 && myhostid != 0 && |
|
ad95fd86760b
6553537 zfs root fails to boot from a snv_63+zfsboot-pfinstall netinstall image
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|
1151 (unsigned long)hostid != myhostid) { |
|
3975
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|
1152 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
|
1153 "loaded as it was last accessed by " |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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diff
changeset
|
1154 "another system (host: %s hostid: 0x%lx). " |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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changeset
|
1155 "See: http://www.sun.com/msg/ZFS-8000-EY", |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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|
1156 spa->spa_name, hostname, |
|
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6282725 hostname/hostid should be stored in the label
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changeset
|
1157 (unsigned long)hostid); |
|
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|
1158 error = EBADF; |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
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|
1159 goto out; |
|
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6282725 hostname/hostid should be stored in the label
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changeset
|
1160 } |
|
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6282725 hostname/hostid should be stored in the label
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|
1161 } |
|
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|
1162 |
| 789 | 1163 spa_config_set(spa, newconfig); |
| 1164 spa_unload(spa); | |
| 1165 spa_deactivate(spa); | |
| 1166 spa_activate(spa); | |
| 1167 | |
| 1544 | 1168 return (spa_load(spa, newconfig, state, B_TRUE)); |
| 1169 } | |
| 1170 | |
| 1171 if (zap_lookup(spa->spa_meta_objset, | |
| 1172 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SYNC_BPLIST, | |
| 1173 sizeof (uint64_t), 1, &spa->spa_sync_bplist_obj) != 0) { | |
| 1174 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1175 VDEV_AUX_CORRUPT_DATA); | |
| 1176 error = EIO; | |
| 1177 goto out; | |
| 789 | 1178 } |
| 1179 | |
| 1544 | 1180 /* |
| 2082 | 1181 * Load the bit that tells us to use the new accounting function |
| 1182 * (raid-z deflation). If we have an older pool, this will not | |
| 1183 * be present. | |
| 1184 */ | |
| 1185 error = zap_lookup(spa->spa_meta_objset, | |
| 1186 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
| 1187 sizeof (uint64_t), 1, &spa->spa_deflate); | |
| 1188 if (error != 0 && error != ENOENT) { | |
| 1189 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1190 VDEV_AUX_CORRUPT_DATA); | |
| 1191 error = EIO; | |
| 1192 goto out; | |
| 1193 } | |
| 1194 | |
| 1195 /* | |
| 1544 | 1196 * Load the persistent error log. If we have an older pool, this will |
| 1197 * not be present. | |
| 1198 */ | |
| 1199 error = zap_lookup(spa->spa_meta_objset, | |
| 1200 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_ERRLOG_LAST, | |
| 1201 sizeof (uint64_t), 1, &spa->spa_errlog_last); | |
|
1807
35c8b566d7af
6410711 intent log blocks don't get invited to pool parties
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diff
changeset
|
1202 if (error != 0 && error != ENOENT) { |
| 1544 | 1203 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1204 VDEV_AUX_CORRUPT_DATA); | |
| 1205 error = EIO; | |
| 1206 goto out; | |
| 1207 } | |
| 1208 | |
| 1209 error = zap_lookup(spa->spa_meta_objset, | |
| 1210 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_ERRLOG_SCRUB, | |
| 1211 sizeof (uint64_t), 1, &spa->spa_errlog_scrub); | |
| 1212 if (error != 0 && error != ENOENT) { | |
| 1213 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1214 VDEV_AUX_CORRUPT_DATA); | |
| 1215 error = EIO; | |
| 1216 goto out; | |
| 1217 } | |
| 789 | 1218 |
| 1219 /* | |
| 2926 | 1220 * Load the history object. If we have an older pool, this |
| 1221 * will not be present. | |
| 1222 */ | |
| 1223 error = zap_lookup(spa->spa_meta_objset, | |
| 1224 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_HISTORY, | |
| 1225 sizeof (uint64_t), 1, &spa->spa_history); | |
| 1226 if (error != 0 && error != ENOENT) { | |
| 1227 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1228 VDEV_AUX_CORRUPT_DATA); | |
| 1229 error = EIO; | |
| 1230 goto out; | |
| 1231 } | |
| 1232 | |
| 1233 /* | |
| 2082 | 1234 * Load any hot spares for this pool. |
| 1235 */ | |
| 1236 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, | |
| 5450 | 1237 DMU_POOL_SPARES, sizeof (uint64_t), 1, &spa->spa_spares.sav_object); |
| 2082 | 1238 if (error != 0 && error != ENOENT) { |
| 1239 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1240 VDEV_AUX_CORRUPT_DATA); | |
| 1241 error = EIO; | |
| 1242 goto out; | |
| 1243 } | |
| 1244 if (error == 0) { | |
| 4577 | 1245 ASSERT(spa_version(spa) >= SPA_VERSION_SPARES); |
| 5450 | 1246 if (load_nvlist(spa, spa->spa_spares.sav_object, |
| 1247 &spa->spa_spares.sav_config) != 0) { | |
| 2082 | 1248 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1249 VDEV_AUX_CORRUPT_DATA); | |
| 1250 error = EIO; | |
| 1251 goto out; | |
| 1252 } | |
| 1253 | |
| 1254 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 1255 spa_load_spares(spa); | |
| 1256 spa_config_exit(spa, FTAG); | |
| 1257 } | |
| 1258 | |
| 5450 | 1259 /* |
| 1260 * Load any level 2 ARC devices for this pool. | |
| 1261 */ | |
| 1262 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, | |
| 1263 DMU_POOL_L2CACHE, sizeof (uint64_t), 1, | |
| 1264 &spa->spa_l2cache.sav_object); | |
| 1265 if (error != 0 && error != ENOENT) { | |
| 1266 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1267 VDEV_AUX_CORRUPT_DATA); | |
| 1268 error = EIO; | |
| 1269 goto out; | |
| 1270 } | |
| 1271 if (error == 0) { | |
| 1272 ASSERT(spa_version(spa) >= SPA_VERSION_L2CACHE); | |
| 1273 if (load_nvlist(spa, spa->spa_l2cache.sav_object, | |
| 1274 &spa->spa_l2cache.sav_config) != 0) { | |
| 1275 vdev_set_state(rvd, B_TRUE, | |
| 1276 VDEV_STATE_CANT_OPEN, | |
| 1277 VDEV_AUX_CORRUPT_DATA); | |
| 1278 error = EIO; | |
| 1279 goto out; | |
| 1280 } | |
| 1281 | |
| 1282 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 1283 spa_load_l2cache(spa); | |
| 1284 spa_config_exit(spa, FTAG); | |
| 1285 } | |
| 1286 | |
| 7294 | 1287 if (spa_check_logs(spa)) { |
| 1288 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1289 VDEV_AUX_BAD_LOG); | |
| 1290 error = ENXIO; | |
| 1291 ereport = FM_EREPORT_ZFS_LOG_REPLAY; | |
| 1292 goto out; | |
| 1293 } | |
| 1294 | |
| 1295 | |
| 5094 | 1296 spa->spa_delegation = zpool_prop_default_numeric(ZPOOL_PROP_DELEGATION); |
| 4543 | 1297 |
| 3912 | 1298 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, |
| 1299 DMU_POOL_PROPS, sizeof (uint64_t), 1, &spa->spa_pool_props_object); | |
| 1300 | |
| 1301 if (error && error != ENOENT) { | |
| 1302 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1303 VDEV_AUX_CORRUPT_DATA); | |
| 1304 error = EIO; | |
| 1305 goto out; | |
| 1306 } | |
| 1307 | |
| 1308 if (error == 0) { | |
| 1309 (void) zap_lookup(spa->spa_meta_objset, | |
| 1310 spa->spa_pool_props_object, | |
| 4451 | 1311 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), |
| 3912 | 1312 sizeof (uint64_t), 1, &spa->spa_bootfs); |
| 4451 | 1313 (void) zap_lookup(spa->spa_meta_objset, |
| 1314 spa->spa_pool_props_object, | |
| 1315 zpool_prop_to_name(ZPOOL_PROP_AUTOREPLACE), | |
| 1316 sizeof (uint64_t), 1, &autoreplace); | |
| 4543 | 1317 (void) zap_lookup(spa->spa_meta_objset, |
| 1318 spa->spa_pool_props_object, | |
| 1319 zpool_prop_to_name(ZPOOL_PROP_DELEGATION), | |
| 1320 sizeof (uint64_t), 1, &spa->spa_delegation); | |
| 5329 | 1321 (void) zap_lookup(spa->spa_meta_objset, |
| 1322 spa->spa_pool_props_object, | |
| 1323 zpool_prop_to_name(ZPOOL_PROP_FAILUREMODE), | |
| 1324 sizeof (uint64_t), 1, &spa->spa_failmode); | |
| 3912 | 1325 } |
| 1326 | |
| 2082 | 1327 /* |
| 4451 | 1328 * If the 'autoreplace' property is set, then post a resource notifying |
| 1329 * the ZFS DE that it should not issue any faults for unopenable | |
| 1330 * devices. We also iterate over the vdevs, and post a sysevent for any | |
| 1331 * unopenable vdevs so that the normal autoreplace handler can take | |
| 1332 * over. | |
| 1333 */ | |
|
5756
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6585441 spa_event_notify() doesn't pass its attributes
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parents:
5688
diff
changeset
|
1334 if (autoreplace && state != SPA_LOAD_TRYIMPORT) |
| 4451 | 1335 spa_check_removed(spa->spa_root_vdev); |
| 1336 | |
| 1337 /* | |
|
1986
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
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diff
changeset
|
1338 * Load the vdev state for all toplevel vdevs. |
| 789 | 1339 */ |
|
1986
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
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diff
changeset
|
1340 vdev_load(rvd); |
| 789 | 1341 |
| 1342 /* | |
| 1343 * Propagate the leaf DTLs we just loaded all the way up the tree. | |
| 1344 */ | |
| 1544 | 1345 spa_config_enter(spa, RW_WRITER, FTAG); |
| 789 | 1346 vdev_dtl_reassess(rvd, 0, 0, B_FALSE); |
| 1544 | 1347 spa_config_exit(spa, FTAG); |
| 789 | 1348 |
| 1349 /* | |
| 1350 * Check the state of the root vdev. If it can't be opened, it | |
| 1351 * indicates one or more toplevel vdevs are faulted. | |
| 1352 */ | |
| 1544 | 1353 if (rvd->vdev_state <= VDEV_STATE_CANT_OPEN) { |
| 1354 error = ENXIO; | |
| 1355 goto out; | |
| 1356 } | |
| 789 | 1357 |
| 1544 | 1358 if ((spa_mode & FWRITE) && state != SPA_LOAD_TRYIMPORT) { |
|
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parents:
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changeset
|
1359 dmu_tx_t *tx; |
|
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changeset
|
1360 int need_update = B_FALSE; |
|
1585
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6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
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diff
changeset
|
1361 int c; |
|
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|
1362 |
|
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|
1363 /* |
|
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|
1364 * Claim log blocks that haven't been committed yet. |
|
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|
1365 * This must all happen in a single txg. |
|
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6398664 zpool detach: missing argument to error message causes core dump
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diff
changeset
|
1366 */ |
|
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parents:
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changeset
|
1367 tx = dmu_tx_create_assigned(spa_get_dsl(spa), |
| 789 | 1368 spa_first_txg(spa)); |
| 2417 | 1369 (void) dmu_objset_find(spa->spa_name, |
| 1370 zil_claim, tx, DS_FIND_CHILDREN); | |
| 789 | 1371 dmu_tx_commit(tx); |
| 1372 | |
| 1373 spa->spa_sync_on = B_TRUE; | |
| 1374 txg_sync_start(spa->spa_dsl_pool); | |
| 1375 | |
| 1376 /* | |
| 1377 * Wait for all claims to sync. | |
| 1378 */ | |
| 1379 txg_wait_synced(spa->spa_dsl_pool, 0); | |
|
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diff
changeset
|
1380 |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
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diff
changeset
|
1381 /* |
|
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changeset
|
1382 * If the config cache is stale, or we have uninitialized |
|
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changeset
|
1383 * metaslabs (see spa_vdev_add()), then update the config. |
|
1585
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changeset
|
1384 */ |
|
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|
1385 if (config_cache_txg != spa->spa_config_txg || |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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changeset
|
1386 state == SPA_LOAD_IMPORT) |
|
0ab1193d47cb
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|
1387 need_update = B_TRUE; |
|
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|
1388 |
|
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|
1389 for (c = 0; c < rvd->vdev_children; c++) |
|
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|
1390 if (rvd->vdev_child[c]->vdev_ms_array == 0) |
|
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|
1391 need_update = B_TRUE; |
|
1585
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|
1392 |
|
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diff
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|
1393 /* |
|
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|
1394 * Update the config cache asychronously in case we're the |
|
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|
1395 * root pool, in which case the config cache isn't writable yet. |
|
1585
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changeset
|
1396 */ |
|
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1397 if (need_update) |
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1398 spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE); |
| 789 | 1399 } |
| 1400 | |
| 1544 | 1401 error = 0; |
| 1402 out: | |
|
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1403 spa->spa_minref = refcount_count(&spa->spa_refcount); |
| 2082 | 1404 if (error && error != EBADF) |
| 7294 | 1405 zfs_ereport_post(ereport, spa, NULL, NULL, 0, 0); |
| 1544 | 1406 spa->spa_load_state = SPA_LOAD_NONE; |
| 1407 spa->spa_ena = 0; | |
| 1408 | |
| 1409 return (error); | |
| 789 | 1410 } |
| 1411 | |
| 1412 /* | |
| 1413 * Pool Open/Import | |
| 1414 * | |
| 1415 * The import case is identical to an open except that the configuration is sent | |
| 1416 * down from userland, instead of grabbed from the configuration cache. For the | |
| 1417 * case of an open, the pool configuration will exist in the | |
| 4451 | 1418 * POOL_STATE_UNINITIALIZED state. |
| 789 | 1419 * |
| 1420 * The stats information (gen/count/ustats) is used to gather vdev statistics at | |
| 1421 * the same time open the pool, without having to keep around the spa_t in some | |
| 1422 * ambiguous state. | |
| 1423 */ | |
| 1424 static int | |
| 1425 spa_open_common(const char *pool, spa_t **spapp, void *tag, nvlist_t **config) | |
| 1426 { | |
| 1427 spa_t *spa; | |
| 1428 int error; | |
| 1429 int locked = B_FALSE; | |
| 1430 | |
| 1431 *spapp = NULL; | |
| 1432 | |
| 1433 /* | |
| 1434 * As disgusting as this is, we need to support recursive calls to this | |
| 1435 * function because dsl_dir_open() is called during spa_load(), and ends | |
| 1436 * up calling spa_open() again. The real fix is to figure out how to | |
| 1437 * avoid dsl_dir_open() calling this in the first place. | |
| 1438 */ | |
| 1439 if (mutex_owner(&spa_namespace_lock) != curthread) { | |
| 1440 mutex_enter(&spa_namespace_lock); | |
| 1441 locked = B_TRUE; | |
| 1442 } | |
| 1443 | |
| 1444 if ((spa = spa_lookup(pool)) == NULL) { | |
| 1445 if (locked) | |
| 1446 mutex_exit(&spa_namespace_lock); | |
| 1447 return (ENOENT); | |
| 1448 } | |
| 1449 if (spa->spa_state == POOL_STATE_UNINITIALIZED) { | |
| 1450 | |
| 1451 spa_activate(spa); | |
| 1452 | |
|
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1453 error = spa_load(spa, spa->spa_config, SPA_LOAD_OPEN, B_FALSE); |
| 789 | 1454 |
| 1455 if (error == EBADF) { | |
| 1456 /* | |
|
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1457 * If vdev_validate() returns failure (indicated by |
|
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1458 * EBADF), it indicates that one of the vdevs indicates |
|
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1459 * that the pool has been exported or destroyed. If |
|
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1460 * this is the case, the config cache is out of sync and |
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1461 * we should remove the pool from the namespace. |
| 789 | 1462 */ |
| 1463 spa_unload(spa); | |
| 1464 spa_deactivate(spa); | |
|
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1465 spa_config_sync(spa, B_TRUE, B_TRUE); |
| 789 | 1466 spa_remove(spa); |
| 1467 if (locked) | |
| 1468 mutex_exit(&spa_namespace_lock); | |
| 1469 return (ENOENT); | |
| 1544 | 1470 } |
| 1471 | |
| 1472 if (error) { | |
| 789 | 1473 /* |
| 1474 * We can't open the pool, but we still have useful | |
| 1475 * information: the state of each vdev after the | |
| 1476 * attempted vdev_open(). Return this to the user. | |
| 1477 */ | |
|
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1478 if (config != NULL && spa->spa_root_vdev != NULL) { |
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1479 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 1480 *config = spa_config_generate(spa, NULL, -1ULL, |
| 1481 B_TRUE); | |
|
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1482 spa_config_exit(spa, FTAG); |
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1483 } |
| 789 | 1484 spa_unload(spa); |
| 1485 spa_deactivate(spa); | |
| 1544 | 1486 spa->spa_last_open_failed = B_TRUE; |
| 789 | 1487 if (locked) |
| 1488 mutex_exit(&spa_namespace_lock); | |
| 1489 *spapp = NULL; | |
| 1490 return (error); | |
| 1544 | 1491 } else { |
| 1492 spa->spa_last_open_failed = B_FALSE; | |
| 789 | 1493 } |
| 1494 } | |
| 1495 | |
| 1496 spa_open_ref(spa, tag); | |
| 4451 | 1497 |
| 789 | 1498 if (locked) |
| 1499 mutex_exit(&spa_namespace_lock); | |
| 1500 | |
| 1501 *spapp = spa; | |
| 1502 | |
| 1503 if (config != NULL) { | |
| 1544 | 1504 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 1505 *config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); |
| 1544 | 1506 spa_config_exit(spa, FTAG); |
| 789 | 1507 } |
| 1508 | |
| 1509 return (0); | |
| 1510 } | |
| 1511 | |
| 1512 int | |
| 1513 spa_open(const char *name, spa_t **spapp, void *tag) | |
| 1514 { | |
| 1515 return (spa_open_common(name, spapp, tag, NULL)); | |
| 1516 } | |
| 1517 | |
| 1544 | 1518 /* |
| 1519 * Lookup the given spa_t, incrementing the inject count in the process, | |
| 1520 * preventing it from being exported or destroyed. | |
| 1521 */ | |
| 1522 spa_t * | |
| 1523 spa_inject_addref(char *name) | |
| 1524 { | |
| 1525 spa_t *spa; | |
| 1526 | |
| 1527 mutex_enter(&spa_namespace_lock); | |
| 1528 if ((spa = spa_lookup(name)) == NULL) { | |
| 1529 mutex_exit(&spa_namespace_lock); | |
| 1530 return (NULL); | |
| 1531 } | |
| 1532 spa->spa_inject_ref++; | |
| 1533 mutex_exit(&spa_namespace_lock); | |
| 1534 | |
| 1535 return (spa); | |
| 1536 } | |
| 1537 | |
| 1538 void | |
| 1539 spa_inject_delref(spa_t *spa) | |
| 1540 { | |
| 1541 mutex_enter(&spa_namespace_lock); | |
| 1542 spa->spa_inject_ref--; | |
| 1543 mutex_exit(&spa_namespace_lock); | |
| 1544 } | |
| 1545 | |
| 5450 | 1546 /* |
| 1547 * Add spares device information to the nvlist. | |
| 1548 */ | |
| 2082 | 1549 static void |
| 1550 spa_add_spares(spa_t *spa, nvlist_t *config) | |
| 1551 { | |
| 1552 nvlist_t **spares; | |
| 1553 uint_t i, nspares; | |
| 1554 nvlist_t *nvroot; | |
| 1555 uint64_t guid; | |
| 1556 vdev_stat_t *vs; | |
| 1557 uint_t vsc; | |
|
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1558 uint64_t pool; |
| 2082 | 1559 |
| 5450 | 1560 if (spa->spa_spares.sav_count == 0) |
| 2082 | 1561 return; |
| 1562 | |
| 1563 VERIFY(nvlist_lookup_nvlist(config, | |
| 1564 ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); | |
| 5450 | 1565 VERIFY(nvlist_lookup_nvlist_array(spa->spa_spares.sav_config, |
| 2082 | 1566 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); |
| 1567 if (nspares != 0) { | |
| 1568 VERIFY(nvlist_add_nvlist_array(nvroot, | |
| 1569 ZPOOL_CONFIG_SPARES, spares, nspares) == 0); | |
| 1570 VERIFY(nvlist_lookup_nvlist_array(nvroot, | |
| 1571 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); | |
| 1572 | |
| 1573 /* | |
| 1574 * Go through and find any spares which have since been | |
| 1575 * repurposed as an active spare. If this is the case, update | |
| 1576 * their status appropriately. | |
| 1577 */ | |
| 1578 for (i = 0; i < nspares; i++) { | |
| 1579 VERIFY(nvlist_lookup_uint64(spares[i], | |
| 1580 ZPOOL_CONFIG_GUID, &guid) == 0); | |
|
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1581 if (spa_spare_exists(guid, &pool, NULL) && |
|
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1582 pool != 0ULL) { |
| 2082 | 1583 VERIFY(nvlist_lookup_uint64_array( |
| 1584 spares[i], ZPOOL_CONFIG_STATS, | |
| 1585 (uint64_t **)&vs, &vsc) == 0); | |
| 1586 vs->vs_state = VDEV_STATE_CANT_OPEN; | |
| 1587 vs->vs_aux = VDEV_AUX_SPARED; | |
| 1588 } | |
| 1589 } | |
| 1590 } | |
| 1591 } | |
| 1592 | |
| 5450 | 1593 /* |
| 1594 * Add l2cache device information to the nvlist, including vdev stats. | |
| 1595 */ | |
| 1596 static void | |
| 1597 spa_add_l2cache(spa_t *spa, nvlist_t *config) | |
| 1598 { | |
| 1599 nvlist_t **l2cache; | |
| 1600 uint_t i, j, nl2cache; | |
| 1601 nvlist_t *nvroot; | |
| 1602 uint64_t guid; | |
| 1603 vdev_t *vd; | |
| 1604 vdev_stat_t *vs; | |
| 1605 uint_t vsc; | |
| 1606 | |
| 1607 if (spa->spa_l2cache.sav_count == 0) | |
| 1608 return; | |
| 1609 | |
| 1610 spa_config_enter(spa, RW_READER, FTAG); | |
| 1611 | |
| 1612 VERIFY(nvlist_lookup_nvlist(config, | |
| 1613 ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); | |
| 1614 VERIFY(nvlist_lookup_nvlist_array(spa->spa_l2cache.sav_config, | |
| 1615 ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0); | |
| 1616 if (nl2cache != 0) { | |
| 1617 VERIFY(nvlist_add_nvlist_array(nvroot, | |
| 1618 ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache) == 0); | |
| 1619 VERIFY(nvlist_lookup_nvlist_array(nvroot, | |
| 1620 ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0); | |
| 1621 | |
| 1622 /* | |
| 1623 * Update level 2 cache device stats. | |
| 1624 */ | |
| 1625 | |
| 1626 for (i = 0; i < nl2cache; i++) { | |
| 1627 VERIFY(nvlist_lookup_uint64(l2cache[i], | |
| 1628 ZPOOL_CONFIG_GUID, &guid) == 0); | |
| 1629 | |
| 1630 vd = NULL; | |
| 1631 for (j = 0; j < spa->spa_l2cache.sav_count; j++) { | |
| 1632 if (guid == | |
| 1633 spa->spa_l2cache.sav_vdevs[j]->vdev_guid) { | |
| 1634 vd = spa->spa_l2cache.sav_vdevs[j]; | |
| 1635 break; | |
| 1636 } | |
| 1637 } | |
| 1638 ASSERT(vd != NULL); | |
| 1639 | |
| 1640 VERIFY(nvlist_lookup_uint64_array(l2cache[i], | |
| 1641 ZPOOL_CONFIG_STATS, (uint64_t **)&vs, &vsc) == 0); | |
| 1642 vdev_get_stats(vd, vs); | |
| 1643 } | |
| 1644 } | |
| 1645 | |
| 1646 spa_config_exit(spa, FTAG); | |
| 1647 } | |
| 1648 | |
| 789 | 1649 int |
| 1544 | 1650 spa_get_stats(const char *name, nvlist_t **config, char *altroot, size_t buflen) |
| 789 | 1651 { |
| 1652 int error; | |
| 1653 spa_t *spa; | |
| 1654 | |
| 1655 *config = NULL; | |
| 1656 error = spa_open_common(name, &spa, FTAG, config); | |
| 1657 | |
| 2082 | 1658 if (spa && *config != NULL) { |
| 1544 | 1659 VERIFY(nvlist_add_uint64(*config, ZPOOL_CONFIG_ERRCOUNT, |
| 1660 spa_get_errlog_size(spa)) == 0); | |
| 1661 | |
| 2082 | 1662 spa_add_spares(spa, *config); |
| 5450 | 1663 spa_add_l2cache(spa, *config); |
| 2082 | 1664 } |
| 1665 | |
| 1544 | 1666 /* |
| 1667 * We want to get the alternate root even for faulted pools, so we cheat | |
| 1668 * and call spa_lookup() directly. | |
| 1669 */ | |
| 1670 if (altroot) { | |
| 1671 if (spa == NULL) { | |
| 1672 mutex_enter(&spa_namespace_lock); | |
| 1673 spa = spa_lookup(name); | |
| 1674 if (spa) | |
| 1675 spa_altroot(spa, altroot, buflen); | |
| 1676 else | |
| 1677 altroot[0] = '\0'; | |
| 1678 spa = NULL; | |
| 1679 mutex_exit(&spa_namespace_lock); | |
| 1680 } else { | |
| 1681 spa_altroot(spa, altroot, buflen); | |
| 1682 } | |
| 1683 } | |
| 1684 | |
| 789 | 1685 if (spa != NULL) |
| 1686 spa_close(spa, FTAG); | |
| 1687 | |
| 1688 return (error); | |
| 1689 } | |
| 1690 | |
| 1691 /* | |
| 5450 | 1692 * Validate that the auxiliary device array is well formed. We must have an |
| 1693 * array of nvlists, each which describes a valid leaf vdev. If this is an | |
| 1694 * import (mode is VDEV_ALLOC_SPARE), then we allow corrupted spares to be | |
| 1695 * specified, as long as they are well-formed. | |
| 2082 | 1696 */ |
| 1697 static int | |
| 5450 | 1698 spa_validate_aux_devs(spa_t *spa, nvlist_t *nvroot, uint64_t crtxg, int mode, |
| 1699 spa_aux_vdev_t *sav, const char *config, uint64_t version, | |
| 1700 vdev_labeltype_t label) | |
| 2082 | 1701 { |
| 5450 | 1702 nvlist_t **dev; |
| 1703 uint_t i, ndev; | |
| 2082 | 1704 vdev_t *vd; |
| 1705 int error; | |
| 1706 | |
| 1707 /* | |
| 5450 | 1708 * It's acceptable to have no devs specified. |
| 2082 | 1709 */ |
| 5450 | 1710 if (nvlist_lookup_nvlist_array(nvroot, config, &dev, &ndev) != 0) |
| 2082 | 1711 return (0); |
| 1712 | |
| 5450 | 1713 if (ndev == 0) |
| 2082 | 1714 return (EINVAL); |
| 1715 | |
| 1716 /* | |
| 5450 | 1717 * Make sure the pool is formatted with a version that supports this |
| 1718 * device type. | |
| 2082 | 1719 */ |
| 5450 | 1720 if (spa_version(spa) < version) |
| 2082 | 1721 return (ENOTSUP); |
| 1722 | |
|
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1723 /* |
| 5450 | 1724 * Set the pending device list so we correctly handle device in-use |
|
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|
1725 * checking. |
|
a2fa338530c1
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|
1726 */ |
| 5450 | 1727 sav->sav_pending = dev; |
| 1728 sav->sav_npending = ndev; | |
| 1729 | |
| 1730 for (i = 0; i < ndev; i++) { | |
| 1731 if ((error = spa_config_parse(spa, &vd, dev[i], NULL, 0, | |
| 2082 | 1732 mode)) != 0) |
|
3377
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diff
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|
1733 goto out; |
| 2082 | 1734 |
| 1735 if (!vd->vdev_ops->vdev_op_leaf) { | |
| 1736 vdev_free(vd); | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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|
1737 error = EINVAL; |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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diff
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|
1738 goto out; |
| 2082 | 1739 } |
| 1740 | |
| 5450 | 1741 /* |
| 1742 * The L2ARC currently only supports disk devices. | |
| 1743 */ | |
| 1744 if ((strcmp(config, ZPOOL_CONFIG_L2CACHE) == 0) && | |
| 1745 strcmp(vd->vdev_ops->vdev_op_type, VDEV_TYPE_DISK) != 0) { | |
| 1746 error = ENOTBLK; | |
| 1747 goto out; | |
| 1748 } | |
| 1749 | |
| 2082 | 1750 vd->vdev_top = vd; |
|
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|
1751 |
|
a2fa338530c1
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|
1752 if ((error = vdev_open(vd)) == 0 && |
| 5450 | 1753 (error = vdev_label_init(vd, crtxg, label)) == 0) { |
| 1754 VERIFY(nvlist_add_uint64(dev[i], ZPOOL_CONFIG_GUID, | |
|
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1755 vd->vdev_guid) == 0); |
| 2082 | 1756 } |
| 1757 | |
| 1758 vdev_free(vd); | |
|
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1759 |
| 5450 | 1760 if (error && |
| 1761 (mode != VDEV_ALLOC_SPARE && mode != VDEV_ALLOC_L2CACHE)) | |
|
3377
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6393525 vdev_reopen() should verify that it's still the same device
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|
1762 goto out; |
|
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6393525 vdev_reopen() should verify that it's still the same device
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|
1763 else |
|
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6393525 vdev_reopen() should verify that it's still the same device
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1764 error = 0; |
| 2082 | 1765 } |
| 1766 | |
|
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1767 out: |
| 5450 | 1768 sav->sav_pending = NULL; |
| 1769 sav->sav_npending = 0; | |
|
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1770 return (error); |
| 2082 | 1771 } |
| 1772 | |
| 5450 | 1773 static int |
| 1774 spa_validate_aux(spa_t *spa, nvlist_t *nvroot, uint64_t crtxg, int mode) | |
| 1775 { | |
| 1776 int error; | |
| 1777 | |
| 1778 if ((error = spa_validate_aux_devs(spa, nvroot, crtxg, mode, | |
| 1779 &spa->spa_spares, ZPOOL_CONFIG_SPARES, SPA_VERSION_SPARES, | |
| 1780 VDEV_LABEL_SPARE)) != 0) { | |
| 1781 return (error); | |
| 1782 } | |
| 1783 | |
| 1784 return (spa_validate_aux_devs(spa, nvroot, crtxg, mode, | |
| 1785 &spa->spa_l2cache, ZPOOL_CONFIG_L2CACHE, SPA_VERSION_L2CACHE, | |
| 1786 VDEV_LABEL_L2CACHE)); | |
| 1787 } | |
| 1788 | |
| 1789 static void | |
| 1790 spa_set_aux_vdevs(spa_aux_vdev_t *sav, nvlist_t **devs, int ndevs, | |
| 1791 const char *config) | |
| 1792 { | |
| 1793 int i; | |
| 1794 | |
| 1795 if (sav->sav_config != NULL) { | |
| 1796 nvlist_t **olddevs; | |
| 1797 uint_t oldndevs; | |
| 1798 nvlist_t **newdevs; | |
| 1799 | |
| 1800 /* | |
| 1801 * Generate new dev list by concatentating with the | |
| 1802 * current dev list. | |
| 1803 */ | |
| 1804 VERIFY(nvlist_lookup_nvlist_array(sav->sav_config, config, | |
| 1805 &olddevs, &oldndevs) == 0); | |
| 1806 | |
| 1807 newdevs = kmem_alloc(sizeof (void *) * | |
| 1808 (ndevs + oldndevs), KM_SLEEP); | |
| 1809 for (i = 0; i < oldndevs; i++) | |
| 1810 VERIFY(nvlist_dup(olddevs[i], &newdevs[i], | |
| 1811 KM_SLEEP) == 0); | |
| 1812 for (i = 0; i < ndevs; i++) | |
| 1813 VERIFY(nvlist_dup(devs[i], &newdevs[i + oldndevs], | |
| 1814 KM_SLEEP) == 0); | |
| 1815 | |
| 1816 VERIFY(nvlist_remove(sav->sav_config, config, | |
| 1817 DATA_TYPE_NVLIST_ARRAY) == 0); | |
| 1818 | |
| 1819 VERIFY(nvlist_add_nvlist_array(sav->sav_config, | |
| 1820 config, newdevs, ndevs + oldndevs) == 0); | |
| 1821 for (i = 0; i < oldndevs + ndevs; i++) | |
| 1822 nvlist_free(newdevs[i]); | |
| 1823 kmem_free(newdevs, (oldndevs + ndevs) * sizeof (void *)); | |
| 1824 } else { | |
| 1825 /* | |
| 1826 * Generate a new dev list. | |
| 1827 */ | |
| 1828 VERIFY(nvlist_alloc(&sav->sav_config, NV_UNIQUE_NAME, | |
| 1829 KM_SLEEP) == 0); | |
| 1830 VERIFY(nvlist_add_nvlist_array(sav->sav_config, config, | |
| 1831 devs, ndevs) == 0); | |
| 1832 } | |
| 1833 } | |
| 1834 | |
| 1835 /* | |
| 1836 * Stop and drop level 2 ARC devices | |
| 1837 */ | |
| 1838 void | |
| 1839 spa_l2cache_drop(spa_t *spa) | |
| 1840 { | |
| 1841 vdev_t *vd; | |
| 1842 int i; | |
| 1843 spa_aux_vdev_t *sav = &spa->spa_l2cache; | |
| 1844 | |
| 1845 for (i = 0; i < sav->sav_count; i++) { | |
| 1846 uint64_t pool; | |
| 1847 | |
| 1848 vd = sav->sav_vdevs[i]; | |
| 1849 ASSERT(vd != NULL); | |
| 1850 | |
| 1851 if (spa_mode & FWRITE && | |
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1852 spa_l2cache_exists(vd->vdev_guid, &pool) && pool != 0ULL && |
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1853 l2arc_vdev_present(vd)) { |
| 5450 | 1854 l2arc_remove_vdev(vd); |
| 1855 } | |
| 1856 if (vd->vdev_isl2cache) | |
| 1857 spa_l2cache_remove(vd); | |
| 1858 vdev_clear_stats(vd); | |
| 1859 (void) vdev_close(vd); | |
| 1860 } | |
| 1861 } | |
| 1862 | |
| 2082 | 1863 /* |
| 789 | 1864 * Pool Creation |
| 1865 */ | |
| 1866 int | |
| 5094 | 1867 spa_create(const char *pool, nvlist_t *nvroot, nvlist_t *props, |
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1868 const char *history_str, nvlist_t *zplprops) |
| 789 | 1869 { |
| 1870 spa_t *spa; | |
| 5094 | 1871 char *altroot = NULL; |
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1872 vdev_t *rvd; |
| 789 | 1873 dsl_pool_t *dp; |
| 1874 dmu_tx_t *tx; | |
| 2082 | 1875 int c, error = 0; |
| 789 | 1876 uint64_t txg = TXG_INITIAL; |
| 5450 | 1877 nvlist_t **spares, **l2cache; |
| 1878 uint_t nspares, nl2cache; | |
| 5094 | 1879 uint64_t version; |
| 789 | 1880 |
| 1881 /* | |
| 1882 * If this pool already exists, return failure. | |
| 1883 */ | |
| 1884 mutex_enter(&spa_namespace_lock); | |
| 1885 if (spa_lookup(pool) != NULL) { | |
| 1886 mutex_exit(&spa_namespace_lock); | |
| 1887 return (EEXIST); | |
| 1888 } | |
| 1889 | |
| 1890 /* | |
| 1891 * Allocate a new spa_t structure. | |
| 1892 */ | |
| 5094 | 1893 (void) nvlist_lookup_string(props, |
| 1894 zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot); | |
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1895 spa = spa_add(pool, altroot); |
| 789 | 1896 spa_activate(spa); |
| 1897 | |
| 1898 spa->spa_uberblock.ub_txg = txg - 1; | |
| 5094 | 1899 |
| 1900 if (props && (error = spa_prop_validate(spa, props))) { | |
| 1901 spa_unload(spa); | |
| 1902 spa_deactivate(spa); | |
| 1903 spa_remove(spa); | |
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1904 mutex_exit(&spa_namespace_lock); |
| 5094 | 1905 return (error); |
| 1906 } | |
| 1907 | |
| 1908 if (nvlist_lookup_uint64(props, zpool_prop_to_name(ZPOOL_PROP_VERSION), | |
| 1909 &version) != 0) | |
| 1910 version = SPA_VERSION; | |
| 1911 ASSERT(version <= SPA_VERSION); | |
| 1912 spa->spa_uberblock.ub_version = version; | |
| 789 | 1913 spa->spa_ubsync = spa->spa_uberblock; |
| 1914 | |
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1915 /* |
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1916 * Create the root vdev. |
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1917 */ |
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1918 spa_config_enter(spa, RW_WRITER, FTAG); |
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1919 |
| 2082 | 1920 error = spa_config_parse(spa, &rvd, nvroot, NULL, 0, VDEV_ALLOC_ADD); |
| 1921 | |
| 1922 ASSERT(error != 0 || rvd != NULL); | |
| 1923 ASSERT(error != 0 || spa->spa_root_vdev == rvd); | |
| 1924 | |
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1925 if (error == 0 && !zfs_allocatable_devs(nvroot)) |
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1926 error = EINVAL; |
| 2082 | 1927 |
| 1928 if (error == 0 && | |
| 1929 (error = vdev_create(rvd, txg, B_FALSE)) == 0 && | |
| 5450 | 1930 (error = spa_validate_aux(spa, nvroot, txg, |
| 2082 | 1931 VDEV_ALLOC_ADD)) == 0) { |
| 1932 for (c = 0; c < rvd->vdev_children; c++) | |
| 1933 vdev_init(rvd->vdev_child[c], txg); | |
| 1934 vdev_config_dirty(rvd); | |
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1935 } |
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1936 |
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1937 spa_config_exit(spa, FTAG); |
| 789 | 1938 |
| 2082 | 1939 if (error != 0) { |
| 789 | 1940 spa_unload(spa); |
| 1941 spa_deactivate(spa); | |
| 1942 spa_remove(spa); | |
| 1943 mutex_exit(&spa_namespace_lock); | |
| 1944 return (error); | |
| 1945 } | |
| 1946 | |
| 2082 | 1947 /* |
| 1948 * Get the list of spares, if specified. | |
| 1949 */ | |
| 1950 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
| 1951 &spares, &nspares) == 0) { | |
| 5450 | 1952 VERIFY(nvlist_alloc(&spa->spa_spares.sav_config, NV_UNIQUE_NAME, |
| 2082 | 1953 KM_SLEEP) == 0); |
| 5450 | 1954 VERIFY(nvlist_add_nvlist_array(spa->spa_spares.sav_config, |
| 2082 | 1955 ZPOOL_CONFIG_SPARES, spares, nspares) == 0); |
| 1956 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 1957 spa_load_spares(spa); | |
| 1958 spa_config_exit(spa, FTAG); | |
| 5450 | 1959 spa->spa_spares.sav_sync = B_TRUE; |
| 1960 } | |
| 1961 | |
| 1962 /* | |
| 1963 * Get the list of level 2 cache devices, if specified. | |
| 1964 */ | |
| 1965 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, | |
| 1966 &l2cache, &nl2cache) == 0) { | |
| 1967 VERIFY(nvlist_alloc(&spa->spa_l2cache.sav_config, | |
| 1968 NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
| 1969 VERIFY(nvlist_add_nvlist_array(spa->spa_l2cache.sav_config, | |
| 1970 ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache) == 0); | |
| 1971 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 1972 spa_load_l2cache(spa); | |
| 1973 spa_config_exit(spa, FTAG); | |
| 1974 spa->spa_l2cache.sav_sync = B_TRUE; | |
| 2082 | 1975 } |
| 1976 | |
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1977 spa->spa_dsl_pool = dp = dsl_pool_create(spa, zplprops, txg); |
| 789 | 1978 spa->spa_meta_objset = dp->dp_meta_objset; |
| 1979 | |
| 1980 tx = dmu_tx_create_assigned(dp, txg); | |
| 1981 | |
| 1982 /* | |
| 1983 * Create the pool config object. | |
| 1984 */ | |
| 1985 spa->spa_config_object = dmu_object_alloc(spa->spa_meta_objset, | |
| 1986 DMU_OT_PACKED_NVLIST, 1 << 14, | |
| 1987 DMU_OT_PACKED_NVLIST_SIZE, sizeof (uint64_t), tx); | |
| 1988 | |
| 1544 | 1989 if (zap_add(spa->spa_meta_objset, |
| 789 | 1990 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CONFIG, |
| 1544 | 1991 sizeof (uint64_t), 1, &spa->spa_config_object, tx) != 0) { |
| 1992 cmn_err(CE_PANIC, "failed to add pool config"); | |
| 1993 } | |
| 789 | 1994 |
| 5094 | 1995 /* Newly created pools with the right version are always deflated. */ |
| 1996 if (version >= SPA_VERSION_RAIDZ_DEFLATE) { | |
| 1997 spa->spa_deflate = TRUE; | |
| 1998 if (zap_add(spa->spa_meta_objset, | |
| 1999 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
| 2000 sizeof (uint64_t), 1, &spa->spa_deflate, tx) != 0) { | |
| 2001 cmn_err(CE_PANIC, "failed to add deflate"); | |
| 2002 } | |
| 2082 | 2003 } |
| 2004 | |
| 789 | 2005 /* |
| 2006 * Create the deferred-free bplist object. Turn off compression | |
| 2007 * because sync-to-convergence takes longer if the blocksize | |
| 2008 * keeps changing. | |
| 2009 */ | |
| 2010 spa->spa_sync_bplist_obj = bplist_create(spa->spa_meta_objset, | |
| 2011 1 << 14, tx); | |
| 2012 dmu_object_set_compress(spa->spa_meta_objset, spa->spa_sync_bplist_obj, | |
| 2013 ZIO_COMPRESS_OFF, tx); | |
| 2014 | |
| 1544 | 2015 if (zap_add(spa->spa_meta_objset, |
| 789 | 2016 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SYNC_BPLIST, |
| 1544 | 2017 sizeof (uint64_t), 1, &spa->spa_sync_bplist_obj, tx) != 0) { |
| 2018 cmn_err(CE_PANIC, "failed to add bplist"); | |
| 2019 } | |
| 789 | 2020 |
| 2926 | 2021 /* |
| 2022 * Create the pool's history object. | |
| 2023 */ | |
| 5094 | 2024 if (version >= SPA_VERSION_ZPOOL_HISTORY) |
| 2025 spa_history_create_obj(spa, tx); | |
| 2026 | |
| 2027 /* | |
| 2028 * Set pool properties. | |
| 2029 */ | |
| 2030 spa->spa_bootfs = zpool_prop_default_numeric(ZPOOL_PROP_BOOTFS); | |
| 2031 spa->spa_delegation = zpool_prop_default_numeric(ZPOOL_PROP_DELEGATION); | |
| 5329 | 2032 spa->spa_failmode = zpool_prop_default_numeric(ZPOOL_PROP_FAILUREMODE); |
| 5094 | 2033 if (props) |
| 2034 spa_sync_props(spa, props, CRED(), tx); | |
| 2926 | 2035 |
| 789 | 2036 dmu_tx_commit(tx); |
| 2037 | |
| 2038 spa->spa_sync_on = B_TRUE; | |
| 2039 txg_sync_start(spa->spa_dsl_pool); | |
| 2040 | |
| 2041 /* | |
| 2042 * We explicitly wait for the first transaction to complete so that our | |
| 2043 * bean counters are appropriately updated. | |
| 2044 */ | |
| 2045 txg_wait_synced(spa->spa_dsl_pool, txg); | |
| 2046 | |
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2047 spa_config_sync(spa, B_FALSE, B_TRUE); |
| 789 | 2048 |
| 5094 | 2049 if (version >= SPA_VERSION_ZPOOL_HISTORY && history_str != NULL) |
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2050 (void) spa_history_log(spa, history_str, LOG_CMD_POOL_CREATE); |
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2051 |
| 789 | 2052 mutex_exit(&spa_namespace_lock); |
| 2053 | |
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2054 spa->spa_minref = refcount_count(&spa->spa_refcount); |
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2055 |
| 789 | 2056 return (0); |
| 2057 } | |
| 2058 | |
| 2059 /* | |
| 2060 * Import the given pool into the system. We set up the necessary spa_t and | |
| 2061 * then call spa_load() to do the dirty work. | |
| 2062 */ | |
| 6423 | 2063 static int |
| 2064 spa_import_common(const char *pool, nvlist_t *config, nvlist_t *props, | |
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2065 boolean_t isroot, boolean_t allowfaulted) |
| 789 | 2066 { |
| 2067 spa_t *spa; | |
| 5094 | 2068 char *altroot = NULL; |
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2069 int error, loaderr; |
| 2082 | 2070 nvlist_t *nvroot; |
| 5450 | 2071 nvlist_t **spares, **l2cache; |
| 2072 uint_t nspares, nl2cache; | |
| 789 | 2073 |
| 2074 /* | |
| 2075 * If a pool with this name exists, return failure. | |
| 2076 */ | |
| 2077 mutex_enter(&spa_namespace_lock); | |
| 2078 if (spa_lookup(pool) != NULL) { | |
| 2079 mutex_exit(&spa_namespace_lock); | |
| 2080 return (EEXIST); | |
| 2081 } | |
| 2082 | |
| 2083 /* | |
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2084 * Create and initialize the spa structure. |
| 789 | 2085 */ |
| 5094 | 2086 (void) nvlist_lookup_string(props, |
| 2087 zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot); | |
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2088 spa = spa_add(pool, altroot); |
| 789 | 2089 spa_activate(spa); |
| 2090 | |
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2091 if (allowfaulted) |
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2092 spa->spa_import_faulted = B_TRUE; |
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2093 spa->spa_is_root = isroot; |
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2094 |
| 789 | 2095 /* |
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2096 * Pass off the heavy lifting to spa_load(). |
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2097 * Pass TRUE for mosconfig (unless this is a root pool) because |
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2098 * the user-supplied config is actually the one to trust when |
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2099 * doing an import. |
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2100 */ |
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2101 loaderr = error = spa_load(spa, config, SPA_LOAD_IMPORT, !isroot); |
| 789 | 2102 |
| 2082 | 2103 spa_config_enter(spa, RW_WRITER, FTAG); |
| 2104 /* | |
| 2105 * Toss any existing sparelist, as it doesn't have any validity anymore, | |
| 2106 * and conflicts with spa_has_spare(). | |
| 2107 */ | |
| 6423 | 2108 if (!isroot && spa->spa_spares.sav_config) { |
| 5450 | 2109 nvlist_free(spa->spa_spares.sav_config); |
| 2110 spa->spa_spares.sav_config = NULL; | |
| 2082 | 2111 spa_load_spares(spa); |
| 2112 } | |
| 6423 | 2113 if (!isroot && spa->spa_l2cache.sav_config) { |
| 5450 | 2114 nvlist_free(spa->spa_l2cache.sav_config); |
| 2115 spa->spa_l2cache.sav_config = NULL; | |
| 2116 spa_load_l2cache(spa); | |
| 2117 } | |
| 2082 | 2118 |
| 2119 VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, | |
| 2120 &nvroot) == 0); | |
| 5450 | 2121 if (error == 0) |
| 2122 error = spa_validate_aux(spa, nvroot, -1ULL, VDEV_ALLOC_SPARE); | |
| 2123 if (error == 0) | |
| 2124 error = spa_validate_aux(spa, nvroot, -1ULL, | |
| 2125 VDEV_ALLOC_L2CACHE); | |
| 2082 | 2126 spa_config_exit(spa, FTAG); |
| 2127 | |
| 5094 | 2128 if (error != 0 || (props && (error = spa_prop_set(spa, props)))) { |
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2129 if (loaderr != 0 && loaderr != EINVAL && allowfaulted) { |
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2130 /* |
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2131 * If we failed to load the pool, but 'allowfaulted' is |
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2132 * set, then manually set the config as if the config |
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2133 * passed in was specified in the cache file. |
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2134 */ |
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2135 error = 0; |
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2136 spa->spa_import_faulted = B_FALSE; |
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2137 if (spa->spa_config == NULL) { |
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2138 spa_config_enter(spa, RW_READER, FTAG); |
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2139 spa->spa_config = spa_config_generate(spa, |
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2140 NULL, -1ULL, B_TRUE); |
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2141 spa_config_exit(spa, FTAG); |
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|
2142 } |
|
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|
2143 spa_unload(spa); |
|
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|
2144 spa_deactivate(spa); |
|
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|
2145 spa_config_sync(spa, B_FALSE, B_TRUE); |
|
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|
2146 } else { |
|
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|
2147 spa_unload(spa); |
|
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|
2148 spa_deactivate(spa); |
|
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|
2149 spa_remove(spa); |
|
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|
2150 } |
| 789 | 2151 mutex_exit(&spa_namespace_lock); |
| 2152 return (error); | |
| 2153 } | |
| 2154 | |
|
1635
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|
2155 /* |
| 5450 | 2156 * Override any spares and level 2 cache devices as specified by |
| 2157 * the user, as these may have correct device names/devids, etc. | |
| 2082 | 2158 */ |
| 2159 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
| 2160 &spares, &nspares) == 0) { | |
| 5450 | 2161 if (spa->spa_spares.sav_config) |
| 2162 VERIFY(nvlist_remove(spa->spa_spares.sav_config, | |
| 2082 | 2163 ZPOOL_CONFIG_SPARES, DATA_TYPE_NVLIST_ARRAY) == 0); |
| 2164 else | |
| 5450 | 2165 VERIFY(nvlist_alloc(&spa->spa_spares.sav_config, |
| 2082 | 2166 NV_UNIQUE_NAME, KM_SLEEP) == 0); |
| 5450 | 2167 VERIFY(nvlist_add_nvlist_array(spa->spa_spares.sav_config, |
| 2082 | 2168 ZPOOL_CONFIG_SPARES, spares, nspares) == 0); |
| 2169 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 2170 spa_load_spares(spa); | |
| 2171 spa_config_exit(spa, FTAG); | |
| 5450 | 2172 spa->spa_spares.sav_sync = B_TRUE; |
| 2173 } | |
| 2174 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, | |
| 2175 &l2cache, &nl2cache) == 0) { | |
| 2176 if (spa->spa_l2cache.sav_config) | |
| 2177 VERIFY(nvlist_remove(spa->spa_l2cache.sav_config, | |
| 2178 ZPOOL_CONFIG_L2CACHE, DATA_TYPE_NVLIST_ARRAY) == 0); | |
| 2179 else | |
| 2180 VERIFY(nvlist_alloc(&spa->spa_l2cache.sav_config, | |
| 2181 NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
| 2182 VERIFY(nvlist_add_nvlist_array(spa->spa_l2cache.sav_config, | |
| 2183 ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache) == 0); | |
| 2184 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 2185 spa_load_l2cache(spa); | |
| 2186 spa_config_exit(spa, FTAG); | |
| 2187 spa->spa_l2cache.sav_sync = B_TRUE; | |
| 2082 | 2188 } |
| 2189 | |
|
6643
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2190 if (spa_mode & FWRITE) { |
|
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|
2191 /* |
|
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|
2192 * Update the config cache to include the newly-imported pool. |
|
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|
2193 */ |
| 6423 | 2194 spa_config_update_common(spa, SPA_CONFIG_UPDATE_POOL, isroot); |
|
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|
2195 } |
|
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|
2196 |
|
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|
2197 spa->spa_import_faulted = B_FALSE; |
| 4451 | 2198 mutex_exit(&spa_namespace_lock); |
| 2199 | |
| 789 | 2200 return (0); |
| 2201 } | |
| 2202 | |
| 6423 | 2203 #ifdef _KERNEL |
| 2204 /* | |
| 2205 * Build a "root" vdev for a top level vdev read in from a rootpool | |
| 2206 * device label. | |
| 2207 */ | |
| 2208 static void | |
| 2209 spa_build_rootpool_config(nvlist_t *config) | |
| 2210 { | |
| 2211 nvlist_t *nvtop, *nvroot; | |
| 2212 uint64_t pgid; | |
| 2213 | |
| 2214 /* | |
| 2215 * Add this top-level vdev to the child array. | |
| 2216 */ | |
| 2217 VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvtop) | |
| 2218 == 0); | |
| 2219 VERIFY(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &pgid) | |
| 2220 == 0); | |
| 2221 | |
| 2222 /* | |
| 2223 * Put this pool's top-level vdevs into a root vdev. | |
| 2224 */ | |
| 2225 VERIFY(nvlist_alloc(&nvroot, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
| 2226 VERIFY(nvlist_add_string(nvroot, ZPOOL_CONFIG_TYPE, VDEV_TYPE_ROOT) | |
| 2227 == 0); | |
| 2228 VERIFY(nvlist_add_uint64(nvroot, ZPOOL_CONFIG_ID, 0ULL) == 0); | |
| 2229 VERIFY(nvlist_add_uint64(nvroot, ZPOOL_CONFIG_GUID, pgid) == 0); | |
| 2230 VERIFY(nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN, | |
| 2231 &nvtop, 1) == 0); | |
| 2232 | |
| 2233 /* | |
| 2234 * Replace the existing vdev_tree with the new root vdev in | |
| 2235 * this pool's configuration (remove the old, add the new). | |
| 2236 */ | |
| 2237 VERIFY(nvlist_add_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, nvroot) == 0); | |
| 2238 nvlist_free(nvroot); | |
| 2239 } | |
| 2240 | |
| 2241 /* | |
| 2242 * Get the root pool information from the root disk, then import the root pool | |
| 2243 * during the system boot up time. | |
| 2244 */ | |
|
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|
2245 extern nvlist_t *vdev_disk_read_rootlabel(char *, char *); |
|
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|
2246 |
|
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|
2247 int |
|
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|
2248 spa_check_rootconf(char *devpath, char *devid, nvlist_t **bestconf, |
| 6423 | 2249 uint64_t *besttxg) |
| 2250 { | |
| 2251 nvlist_t *config; | |
| 2252 uint64_t txg; | |
| 2253 | |
|
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|
2254 if ((config = vdev_disk_read_rootlabel(devpath, devid)) == NULL) |
|
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|
2255 return (-1); |
| 6423 | 2256 |
| 2257 VERIFY(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG, &txg) == 0); | |
| 2258 | |
|
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|
2259 if (bestconf != NULL) |
| 6423 | 2260 *bestconf = config; |
|
7147
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|
2261 *besttxg = txg; |
|
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|
2262 return (0); |
| 6423 | 2263 } |
| 2264 | |
| 2265 boolean_t | |
| 2266 spa_rootdev_validate(nvlist_t *nv) | |
| 2267 { | |
| 2268 uint64_t ival; | |
| 2269 | |
| 2270 if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_OFFLINE, &ival) == 0 || | |
| 2271 nvlist_lookup_uint64(nv, ZPOOL_CONFIG_FAULTED, &ival) == 0 || | |
| 2272 nvlist_lookup_uint64(nv, ZPOOL_CONFIG_REMOVED, &ival) == 0) | |
| 2273 return (B_FALSE); | |
| 2274 | |
| 2275 return (B_TRUE); | |
| 2276 } | |
| 2277 | |
|
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|
2278 |
|
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|
2279 /* |
|
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|
2280 * Given the boot device's physical path or devid, check if the device |
|
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|
2281 * is in a valid state. If so, return the configuration from the vdev |
|
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|
2282 * label. |
|
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|
2283 */ |
|
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|
2284 int |
|
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|
2285 spa_get_rootconf(char *devpath, char *devid, nvlist_t **bestconf) |
|
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|
2286 { |
|
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|
2287 nvlist_t *conf = NULL; |
|
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|
2288 uint64_t txg = 0; |
|
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|
2289 nvlist_t *nvtop, **child; |
|
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|
2290 char *type; |
|
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|
2291 char *bootpath = NULL; |
|
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|
2292 uint_t children, c; |
|
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|
2293 char *tmp; |
|
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|
2294 |
|
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|
2295 if (devpath && ((tmp = strchr(devpath, ' ')) != NULL)) |
|
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|
2296 *tmp = '\0'; |
|
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|
2297 if (spa_check_rootconf(devpath, devid, &conf, &txg) < 0) { |
|
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|
2298 cmn_err(CE_NOTE, "error reading device label"); |
|
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|
2299 nvlist_free(conf); |
|
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|
2300 return (EINVAL); |
|
1e1d75c88283
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|
2301 } |
|
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|
2302 if (txg == 0) { |
|
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|
2303 cmn_err(CE_NOTE, "this device is detached"); |
|
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|
2304 nvlist_free(conf); |
|
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|
2305 return (EINVAL); |
|
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|
2306 } |
|
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|
2307 |
|
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|
2308 VERIFY(nvlist_lookup_nvlist(conf, ZPOOL_CONFIG_VDEV_TREE, |
|
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|
2309 &nvtop) == 0); |
|
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|
2310 VERIFY(nvlist_lookup_string(nvtop, ZPOOL_CONFIG_TYPE, &type) == 0); |
|
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|
2311 |
|
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2312 if (strcmp(type, VDEV_TYPE_DISK) == 0) { |
|
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|
2313 if (spa_rootdev_validate(nvtop)) { |
|
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|
2314 goto out; |
|
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|
2315 } else { |
|
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|
2316 nvlist_free(conf); |
|
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|
2317 return (EINVAL); |
|
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|
2318 } |
|
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|
2319 } |
|
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|
2320 |
|
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|
2321 ASSERT(strcmp(type, VDEV_TYPE_MIRROR) == 0); |
|
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|
2322 |
|
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|
2323 VERIFY(nvlist_lookup_nvlist_array(nvtop, ZPOOL_CONFIG_CHILDREN, |
|
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|
2324 &child, &children) == 0); |
|
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|
2325 |
|
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|
2326 /* |
|
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|
2327 * Go thru vdevs in the mirror to see if the given device |
|
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2328 * has the most recent txg. Only the device with the most |
|
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|
2329 * recent txg has valid information and should be booted. |
|
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|
2330 */ |
|
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|
2331 for (c = 0; c < children; c++) { |
|
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|
2332 char *cdevid, *cpath; |
|
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|
2333 uint64_t tmptxg; |
|
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|
2334 |
|
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|
2335 if (nvlist_lookup_string(child[c], ZPOOL_CONFIG_PHYS_PATH, |
|
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|
2336 &cpath) != 0) |
|
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|
2337 return (EINVAL); |
|
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|
2338 if (nvlist_lookup_string(child[c], ZPOOL_CONFIG_DEVID, |
|
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|
2339 &cdevid) != 0) |
|
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|
2340 return (EINVAL); |
|
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|
2341 if ((spa_check_rootconf(cpath, cdevid, NULL, |
|
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|
2342 &tmptxg) == 0) && (tmptxg > txg)) { |
|
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|
2343 txg = tmptxg; |
|
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|
2344 VERIFY(nvlist_lookup_string(child[c], |
|
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|
2345 ZPOOL_CONFIG_PATH, &bootpath) == 0); |
|
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|
2346 } |
|
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2347 } |
|
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2348 |
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2349 /* Does the best device match the one we've booted from? */ |
|
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2350 if (bootpath) { |
|
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2351 cmn_err(CE_NOTE, "try booting from '%s'", bootpath); |
|
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2352 return (EINVAL); |
|
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2353 } |
|
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2354 out: |
|
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|
2355 *bestconf = conf; |
|
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2356 return (0); |
|
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2357 } |
|
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|
2358 |
| 6423 | 2359 /* |
| 2360 * Import a root pool. | |
| 2361 * | |
|
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2362 * For x86. devpath_list will consist of devid and/or physpath name of |
|
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2363 * the vdev (e.g. "id1,sd@SSEAGATE..." or "/pci@1f,0/ide@d/disk@0,0:a"). |
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2364 * The GRUB "findroot" command will return the vdev we should boot. |
| 6423 | 2365 * |
| 2366 * For Sparc, devpath_list consists the physpath name of the booting device | |
| 2367 * no matter the rootpool is a single device pool or a mirrored pool. | |
| 2368 * e.g. | |
| 2369 * "/pci@1f,0/ide@d/disk@0,0:a" | |
| 2370 */ | |
| 2371 int | |
|
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2372 spa_import_rootpool(char *devpath, char *devid) |
| 6423 | 2373 { |
| 2374 nvlist_t *conf = NULL; | |
| 2375 char *pname; | |
| 2376 int error; | |
| 2377 | |
| 2378 /* | |
| 2379 * Get the vdev pathname and configuation from the most | |
| 2380 * recently updated vdev (highest txg). | |
| 2381 */ | |
|
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2382 if (error = spa_get_rootconf(devpath, devid, &conf)) |
| 6423 | 2383 goto msg_out; |
| 2384 | |
| 2385 /* | |
| 2386 * Add type "root" vdev to the config. | |
| 2387 */ | |
| 2388 spa_build_rootpool_config(conf); | |
| 2389 | |
| 2390 VERIFY(nvlist_lookup_string(conf, ZPOOL_CONFIG_POOL_NAME, &pname) == 0); | |
| 2391 | |
|
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2392 /* |
|
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2393 * We specify 'allowfaulted' for this to be treated like spa_open() |
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2394 * instead of spa_import(). This prevents us from marking vdevs as |
|
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2395 * persistently unavailable, and generates FMA ereports as if it were a |
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2396 * pool open, not import. |
|
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|
2397 */ |
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|
2398 error = spa_import_common(pname, conf, NULL, B_TRUE, B_TRUE); |
| 6423 | 2399 if (error == EEXIST) |
| 2400 error = 0; | |
| 2401 | |
| 2402 nvlist_free(conf); | |
| 2403 return (error); | |
| 2404 | |
| 2405 msg_out: | |
|
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2406 cmn_err(CE_NOTE, "\n" |
| 6423 | 2407 " *************************************************** \n" |
| 2408 " * This device is not bootable! * \n" | |
| 2409 " * It is either offlined or detached or faulted. * \n" | |
| 2410 " * Please try to boot from a different device. * \n" | |
|
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2411 " *************************************************** "); |
| 6423 | 2412 |
| 2413 return (error); | |
| 2414 } | |
| 2415 #endif | |
| 2416 | |
| 2417 /* | |
| 2418 * Import a non-root pool into the system. | |
| 2419 */ | |
| 2420 int | |
| 2421 spa_import(const char *pool, nvlist_t *config, nvlist_t *props) | |
| 2422 { | |
|
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2423 return (spa_import_common(pool, config, props, B_FALSE, B_FALSE)); |
| 6423 | 2424 } |
| 2425 | |
|
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2426 int |
|
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2427 spa_import_faulted(const char *pool, nvlist_t *config, nvlist_t *props) |
|
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2428 { |
|
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2429 return (spa_import_common(pool, config, props, B_FALSE, B_TRUE)); |
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2430 } |
|
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2431 |
|
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2432 |
| 789 | 2433 /* |
| 2434 * This (illegal) pool name is used when temporarily importing a spa_t in order | |
| 2435 * to get the vdev stats associated with the imported devices. | |
| 2436 */ | |
| 2437 #define TRYIMPORT_NAME "$import" | |
| 2438 | |
| 2439 nvlist_t * | |
| 2440 spa_tryimport(nvlist_t *tryconfig) | |
| 2441 { | |
| 2442 nvlist_t *config = NULL; | |
| 2443 char *poolname; | |
| 2444 spa_t *spa; | |
| 2445 uint64_t state; | |
| 2446 | |
| 2447 if (nvlist_lookup_string(tryconfig, ZPOOL_CONFIG_POOL_NAME, &poolname)) | |
| 2448 return (NULL); | |
| 2449 | |
| 2450 if (nvlist_lookup_uint64(tryconfig, ZPOOL_CONFIG_POOL_STATE, &state)) | |
| 2451 return (NULL); | |
| 2452 | |
|
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2453 /* |
|
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2454 * Create and initialize the spa structure. |
|
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|
2455 */ |
| 789 | 2456 mutex_enter(&spa_namespace_lock); |
|
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2457 spa = spa_add(TRYIMPORT_NAME, NULL); |
| 789 | 2458 spa_activate(spa); |
| 2459 | |
| 2460 /* | |
|
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|
2461 * Pass off the heavy lifting to spa_load(). |
| 1732 | 2462 * Pass TRUE for mosconfig because the user-supplied config |
| 2463 * is actually the one to trust when doing an import. | |
| 789 | 2464 */ |
| 1732 | 2465 (void) spa_load(spa, tryconfig, SPA_LOAD_TRYIMPORT, B_TRUE); |
| 789 | 2466 |
| 2467 /* | |
| 2468 * If 'tryconfig' was at least parsable, return the current config. | |
| 2469 */ | |
| 2470 if (spa->spa_root_vdev != NULL) { | |
|
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2471 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 2472 config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); |
|
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2473 spa_config_exit(spa, FTAG); |
| 789 | 2474 VERIFY(nvlist_add_string(config, ZPOOL_CONFIG_POOL_NAME, |
| 2475 poolname) == 0); | |
| 2476 VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_POOL_STATE, | |
| 2477 state) == 0); | |
|
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2478 VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_TIMESTAMP, |
|
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|
2479 spa->spa_uberblock.ub_timestamp) == 0); |
| 2082 | 2480 |
| 2481 /* | |
| 6423 | 2482 * If the bootfs property exists on this pool then we |
| 2483 * copy it out so that external consumers can tell which | |
| 2484 * pools are bootable. | |
| 2485 */ | |
| 2486 if (spa->spa_bootfs) { | |
| 2487 char *tmpname = kmem_alloc(MAXPATHLEN, KM_SLEEP); | |
| 2488 | |
| 2489 /* | |
| 2490 * We have to play games with the name since the | |
| 2491 * pool was opened as TRYIMPORT_NAME. | |
| 2492 */ | |
| 2493 if (dsl_dsobj_to_dsname(spa->spa_name, | |
| 2494 spa->spa_bootfs, tmpname) == 0) { | |
| 2495 char *cp; | |
| 2496 char *dsname = kmem_alloc(MAXPATHLEN, KM_SLEEP); | |
| 2497 | |
| 2498 cp = strchr(tmpname, '/'); | |
| 2499 if (cp == NULL) { | |
| 2500 (void) strlcpy(dsname, tmpname, | |
| 2501 MAXPATHLEN); | |
| 2502 } else { | |
| 2503 (void) snprintf(dsname, MAXPATHLEN, | |
| 2504 "%s/%s", poolname, ++cp); | |
| 2505 } | |
| 2506 VERIFY(nvlist_add_string(config, | |
| 2507 ZPOOL_CONFIG_BOOTFS, dsname) == 0); | |
| 2508 kmem_free(dsname, MAXPATHLEN); | |
| 2509 } | |
| 2510 kmem_free(tmpname, MAXPATHLEN); | |
| 2511 } | |
| 2512 | |
| 2513 /* | |
| 5450 | 2514 * Add the list of hot spares and level 2 cache devices. |
| 2082 | 2515 */ |
| 2516 spa_add_spares(spa, config); | |
| 5450 | 2517 spa_add_l2cache(spa, config); |
| 789 | 2518 } |
| 2519 | |
| 2520 spa_unload(spa); | |
| 2521 spa_deactivate(spa); | |
| 2522 spa_remove(spa); | |
| 2523 mutex_exit(&spa_namespace_lock); | |
| 2524 | |
| 2525 return (config); | |
| 2526 } | |
| 2527 | |
| 2528 /* | |
| 2529 * Pool export/destroy | |
| 2530 * | |
| 2531 * The act of destroying or exporting a pool is very simple. We make sure there | |
| 2532 * is no more pending I/O and any references to the pool are gone. Then, we | |
| 2533 * update the pool state and sync all the labels to disk, removing the | |
| 2534 * configuration from the cache afterwards. | |
| 2535 */ | |
| 2536 static int | |
|
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2537 spa_export_common(char *pool, int new_state, nvlist_t **oldconfig, |
|
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|
2538 boolean_t force) |
| 789 | 2539 { |
| 2540 spa_t *spa; | |
| 2541 | |
|
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2542 if (oldconfig) |
|
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2543 *oldconfig = NULL; |
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2544 |
| 789 | 2545 if (!(spa_mode & FWRITE)) |
| 2546 return (EROFS); | |
| 2547 | |
| 2548 mutex_enter(&spa_namespace_lock); | |
| 2549 if ((spa = spa_lookup(pool)) == NULL) { | |
| 2550 mutex_exit(&spa_namespace_lock); | |
| 2551 return (ENOENT); | |
| 2552 } | |
| 2553 | |
| 2554 /* | |
| 1544 | 2555 * Put a hold on the pool, drop the namespace lock, stop async tasks, |
| 2556 * reacquire the namespace lock, and see if we can export. | |
| 2557 */ | |
| 2558 spa_open_ref(spa, FTAG); | |
| 2559 mutex_exit(&spa_namespace_lock); | |
| 2560 spa_async_suspend(spa); | |
| 2561 mutex_enter(&spa_namespace_lock); | |
| 2562 spa_close(spa, FTAG); | |
| 2563 | |
| 2564 /* | |
| 789 | 2565 * The pool will be in core if it's openable, |
| 2566 * in which case we can modify its state. | |
| 2567 */ | |
| 2568 if (spa->spa_state != POOL_STATE_UNINITIALIZED && spa->spa_sync_on) { | |
| 2569 /* | |
| 2570 * Objsets may be open only because they're dirty, so we | |
| 2571 * have to force it to sync before checking spa_refcnt. | |
| 2572 */ | |
| 2573 txg_wait_synced(spa->spa_dsl_pool, 0); | |
| 2574 | |
| 1544 | 2575 /* |
| 2576 * A pool cannot be exported or destroyed if there are active | |
| 2577 * references. If we are resetting a pool, allow references by | |
| 2578 * fault injection handlers. | |
| 2579 */ | |
| 2580 if (!spa_refcount_zero(spa) || | |
| 2581 (spa->spa_inject_ref != 0 && | |
| 2582 new_state != POOL_STATE_UNINITIALIZED)) { | |
| 2583 spa_async_resume(spa); | |
| 789 | 2584 mutex_exit(&spa_namespace_lock); |
| 2585 return (EBUSY); | |
| 2586 } | |
| 2587 | |
| 2588 /* | |
|
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2589 * A pool cannot be exported if it has an active shared spare. |
|
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2590 * This is to prevent other pools stealing the active spare |
|
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2591 * from an exported pool. At user's own will, such pool can |
|
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2592 * be forcedly exported. |
|
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2593 */ |
|
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2594 if (!force && new_state == POOL_STATE_EXPORTED && |
|
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2595 spa_has_active_shared_spare(spa)) { |
|
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2596 spa_async_resume(spa); |
|
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2597 mutex_exit(&spa_namespace_lock); |
|
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2598 return (EXDEV); |
|
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2599 } |
|
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2600 |
|
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2601 /* |
| 789 | 2602 * We want this to be reflected on every label, |
| 2603 * so mark them all dirty. spa_unload() will do the | |
| 2604 * final sync that pushes these changes out. | |
| 2605 */ | |
| 1544 | 2606 if (new_state != POOL_STATE_UNINITIALIZED) { |
|
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2607 spa_config_enter(spa, RW_WRITER, FTAG); |
| 1544 | 2608 spa->spa_state = new_state; |
|
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2609 spa->spa_final_txg = spa_last_synced_txg(spa) + 1; |
| 1544 | 2610 vdev_config_dirty(spa->spa_root_vdev); |
|
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2611 spa_config_exit(spa, FTAG); |
| 1544 | 2612 } |
| 789 | 2613 } |
| 2614 | |
| 4451 | 2615 spa_event_notify(spa, NULL, ESC_ZFS_POOL_DESTROY); |
| 2616 | |
| 789 | 2617 if (spa->spa_state != POOL_STATE_UNINITIALIZED) { |
| 2618 spa_unload(spa); | |
| 2619 spa_deactivate(spa); | |
| 2620 } | |
| 2621 | |
|
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2622 if (oldconfig && spa->spa_config) |
|
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2623 VERIFY(nvlist_dup(spa->spa_config, oldconfig, 0) == 0); |
|
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2624 |
| 1544 | 2625 if (new_state != POOL_STATE_UNINITIALIZED) { |
|
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2626 spa_config_sync(spa, B_TRUE, B_TRUE); |
| 1544 | 2627 spa_remove(spa); |
| 2628 } | |
| 789 | 2629 mutex_exit(&spa_namespace_lock); |
| 2630 | |
| 2631 return (0); | |
| 2632 } | |
| 2633 | |
| 2634 /* | |
| 2635 * Destroy a storage pool. | |
| 2636 */ | |
| 2637 int | |
| 2638 spa_destroy(char *pool) | |
| 2639 { | |
|
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2640 return (spa_export_common(pool, POOL_STATE_DESTROYED, NULL, B_FALSE)); |
| 789 | 2641 } |
| 2642 | |
| 2643 /* | |
| 2644 * Export a storage pool. | |
| 2645 */ | |
| 2646 int | |
|
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|
2647 spa_export(char *pool, nvlist_t **oldconfig, boolean_t force) |
| 789 | 2648 { |
|
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|
2649 return (spa_export_common(pool, POOL_STATE_EXPORTED, oldconfig, force)); |
| 789 | 2650 } |
| 2651 | |
| 2652 /* | |
| 1544 | 2653 * Similar to spa_export(), this unloads the spa_t without actually removing it |
| 2654 * from the namespace in any way. | |
| 2655 */ | |
| 2656 int | |
| 2657 spa_reset(char *pool) | |
| 2658 { | |
|
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|
2659 return (spa_export_common(pool, POOL_STATE_UNINITIALIZED, NULL, |
|
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|
2660 B_FALSE)); |
| 1544 | 2661 } |
| 2662 | |
| 2663 /* | |
| 789 | 2664 * ========================================================================== |
| 2665 * Device manipulation | |
| 2666 * ========================================================================== | |
| 2667 */ | |
| 2668 | |
| 2669 /* | |
| 4527 | 2670 * Add a device to a storage pool. |
| 789 | 2671 */ |
| 2672 int | |
| 2673 spa_vdev_add(spa_t *spa, nvlist_t *nvroot) | |
| 2674 { | |
| 2675 uint64_t txg; | |
|
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|
2676 int c, error; |
| 789 | 2677 vdev_t *rvd = spa->spa_root_vdev; |
|
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diff
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|
2678 vdev_t *vd, *tvd; |
| 5450 | 2679 nvlist_t **spares, **l2cache; |
| 2680 uint_t nspares, nl2cache; | |
| 789 | 2681 |
| 2682 txg = spa_vdev_enter(spa); | |
| 2683 | |
| 2082 | 2684 if ((error = spa_config_parse(spa, &vd, nvroot, NULL, 0, |
| 2685 VDEV_ALLOC_ADD)) != 0) | |
| 2686 return (spa_vdev_exit(spa, NULL, txg, error)); | |
| 2687 | |
|
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|
2688 spa->spa_pending_vdev = vd; |
| 789 | 2689 |
| 5450 | 2690 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, &spares, |
| 2691 &nspares) != 0) | |
| 2082 | 2692 nspares = 0; |
| 2693 | |
| 5450 | 2694 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, &l2cache, |
| 2695 &nl2cache) != 0) | |
| 2696 nl2cache = 0; | |
| 2697 | |
| 2698 if (vd->vdev_children == 0 && nspares == 0 && nl2cache == 0) { | |
|
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|
2699 spa->spa_pending_vdev = NULL; |
| 2082 | 2700 return (spa_vdev_exit(spa, vd, txg, EINVAL)); |
|
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|
2701 } |
| 2082 | 2702 |
| 2703 if (vd->vdev_children != 0) { | |
|
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|
2704 if ((error = vdev_create(vd, txg, B_FALSE)) != 0) { |
|
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|
2705 spa->spa_pending_vdev = NULL; |
| 2082 | 2706 return (spa_vdev_exit(spa, vd, txg, error)); |
| 2707 } | |
| 2708 } | |
| 2709 | |
|
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|
2710 /* |
| 5450 | 2711 * We must validate the spares and l2cache devices after checking the |
| 2712 * children. Otherwise, vdev_inuse() will blindly overwrite the spare. | |
|
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|
2713 */ |
| 5450 | 2714 if ((error = spa_validate_aux(spa, nvroot, txg, VDEV_ALLOC_ADD)) != 0) { |
|
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|
2715 spa->spa_pending_vdev = NULL; |
|
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|
2716 return (spa_vdev_exit(spa, vd, txg, error)); |
|
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|
2717 } |
|
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|
2718 |
|
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|
2719 spa->spa_pending_vdev = NULL; |
|
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|
2720 |
|
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|
2721 /* |
|
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|
2722 * Transfer each new top-level vdev from vd to rvd. |
|
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|
2723 */ |
|
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|
2724 for (c = 0; c < vd->vdev_children; c++) { |
|
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|
2725 tvd = vd->vdev_child[c]; |
|
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|
2726 vdev_remove_child(vd, tvd); |
|
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|
2727 tvd->vdev_id = rvd->vdev_children; |
|
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|
2728 vdev_add_child(rvd, tvd); |
|
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|
2729 vdev_config_dirty(tvd); |
|
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|
2730 } |
|
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|
2731 |
| 2082 | 2732 if (nspares != 0) { |
| 5450 | 2733 spa_set_aux_vdevs(&spa->spa_spares, spares, nspares, |
| 2734 ZPOOL_CONFIG_SPARES); | |
| 2082 | 2735 spa_load_spares(spa); |
| 5450 | 2736 spa->spa_spares.sav_sync = B_TRUE; |
| 2737 } | |
| 2738 | |
| 2739 if (nl2cache != 0) { | |
| 2740 spa_set_aux_vdevs(&spa->spa_l2cache, l2cache, nl2cache, | |
| 2741 ZPOOL_CONFIG_L2CACHE); | |
| 2742 spa_load_l2cache(spa); | |
| 2743 spa->spa_l2cache.sav_sync = B_TRUE; | |
| 789 | 2744 } |
| 2745 | |
| 2746 /* | |
|
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diff
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|
2747 * We have to be careful when adding new vdevs to an existing pool. |
|
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|
2748 * If other threads start allocating from these vdevs before we |
|
4ad213e858a9
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diff
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|
2749 * sync the config cache, and we lose power, then upon reboot we may |
|
4ad213e858a9
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diff
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|
2750 * fail to open the pool because there are DVAs that the config cache |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
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diff
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|
2751 * can't translate. Therefore, we first add the vdevs without |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
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diff
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|
2752 * initializing metaslabs; sync the config cache (via spa_vdev_exit()); |
|
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|
2753 * and then let spa_config_update() initialize the new metaslabs. |
|
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diff
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|
2754 * |
|
4ad213e858a9
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diff
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|
2755 * spa_load() checks for added-but-not-initialized vdevs, so that |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
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diff
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|
2756 * if we lose power at any point in this sequence, the remaining |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
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diff
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|
2757 * steps will be completed the next time we load the pool. |
| 789 | 2758 */ |
|
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diff
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|
2759 (void) spa_vdev_exit(spa, vd, txg, 0); |
|
1585
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diff
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|
2760 |
|
1635
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diff
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|
2761 mutex_enter(&spa_namespace_lock); |
|
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diff
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|
2762 spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); |
|
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diff
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|
2763 mutex_exit(&spa_namespace_lock); |
| 789 | 2764 |
|
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|
2765 return (0); |
| 789 | 2766 } |
| 2767 | |
| 2768 /* | |
| 2769 * Attach a device to a mirror. The arguments are the path to any device | |
| 2770 * in the mirror, and the nvroot for the new device. If the path specifies | |
| 2771 * a device that is not mirrored, we automatically insert the mirror vdev. | |
| 2772 * | |
| 2773 * If 'replacing' is specified, the new device is intended to replace the | |
| 2774 * existing device; in this case the two devices are made into their own | |
| 4451 | 2775 * mirror using the 'replacing' vdev, which is functionally identical to |
| 789 | 2776 * the mirror vdev (it actually reuses all the same ops) but has a few |
| 2777 * extra rules: you can't attach to it after it's been created, and upon | |
| 2778 * completion of resilvering, the first disk (the one being replaced) | |
| 2779 * is automatically detached. | |
| 2780 */ | |
| 2781 int | |
| 1544 | 2782 spa_vdev_attach(spa_t *spa, uint64_t guid, nvlist_t *nvroot, int replacing) |
| 789 | 2783 { |
| 2784 uint64_t txg, open_txg; | |
| 2785 vdev_t *rvd = spa->spa_root_vdev; | |
| 2786 vdev_t *oldvd, *newvd, *newrootvd, *pvd, *tvd; | |
| 2082 | 2787 vdev_ops_t *pvops; |
|
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diff
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|
2788 dmu_tx_t *tx; |
|
99e2110471bb
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diff
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|
2789 char *oldvdpath, *newvdpath; |
|
99e2110471bb
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diff
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|
2790 int newvd_isspare; |
|
99e2110471bb
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diff
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|
2791 int error; |
| 789 | 2792 |
| 2793 txg = spa_vdev_enter(spa); | |
| 2794 | |
|
6643
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diff
changeset
|
2795 oldvd = spa_lookup_by_guid(spa, guid, B_FALSE); |
| 789 | 2796 |
| 2797 if (oldvd == NULL) | |
| 2798 return (spa_vdev_exit(spa, NULL, txg, ENODEV)); | |
| 2799 | |
|
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diff
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|
2800 if (!oldvd->vdev_ops->vdev_op_leaf) |
|
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diff
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|
2801 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
|
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diff
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|
2802 |
| 789 | 2803 pvd = oldvd->vdev_parent; |
| 2804 | |
| 2082 | 2805 if ((error = spa_config_parse(spa, &newrootvd, nvroot, NULL, 0, |
| 4451 | 2806 VDEV_ALLOC_ADD)) != 0) |
| 2807 return (spa_vdev_exit(spa, NULL, txg, EINVAL)); | |
| 2808 | |
| 2809 if (newrootvd->vdev_children != 1) | |
| 789 | 2810 return (spa_vdev_exit(spa, newrootvd, txg, EINVAL)); |
| 2811 | |
| 2812 newvd = newrootvd->vdev_child[0]; | |
| 2813 | |
| 2814 if (!newvd->vdev_ops->vdev_op_leaf) | |
| 2815 return (spa_vdev_exit(spa, newrootvd, txg, EINVAL)); | |
| 2816 | |
| 2082 | 2817 if ((error = vdev_create(newrootvd, txg, replacing)) != 0) |
| 789 | 2818 return (spa_vdev_exit(spa, newrootvd, txg, error)); |
| 2819 | |
| 4527 | 2820 /* |
| 2821 * Spares can't replace logs | |
| 2822 */ | |
|
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diff
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|
2823 if (oldvd->vdev_top->vdev_islog && newvd->vdev_isspare) |
| 4527 | 2824 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
| 2825 | |
| 2082 | 2826 if (!replacing) { |
| 2827 /* | |
| 2828 * For attach, the only allowable parent is a mirror or the root | |
| 2829 * vdev. | |
| 2830 */ | |
| 2831 if (pvd->vdev_ops != &vdev_mirror_ops && | |
| 2832 pvd->vdev_ops != &vdev_root_ops) | |
| 2833 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
| 2834 | |
| 2835 pvops = &vdev_mirror_ops; | |
| 2836 } else { | |
| 2837 /* | |
| 2838 * Active hot spares can only be replaced by inactive hot | |
| 2839 * spares. | |
| 2840 */ | |
| 2841 if (pvd->vdev_ops == &vdev_spare_ops && | |
| 2842 pvd->vdev_child[1] == oldvd && | |
| 2843 !spa_has_spare(spa, newvd->vdev_guid)) | |
| 2844 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
| 2845 | |
| 2846 /* | |
| 2847 * If the source is a hot spare, and the parent isn't already a | |
| 2848 * spare, then we want to create a new hot spare. Otherwise, we | |
|
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|
2849 * want to create a replacing vdev. The user is not allowed to |
|
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|
2850 * attach to a spared vdev child unless the 'isspare' state is |
|
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|
2851 * the same (spare replaces spare, non-spare replaces |
|
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|
2852 * non-spare). |
| 2082 | 2853 */ |
| 2854 if (pvd->vdev_ops == &vdev_replacing_ops) | |
| 2855 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
|
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|
2856 else if (pvd->vdev_ops == &vdev_spare_ops && |
|
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|
2857 newvd->vdev_isspare != oldvd->vdev_isspare) |
|
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|
2858 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
| 2082 | 2859 else if (pvd->vdev_ops != &vdev_spare_ops && |
| 2860 newvd->vdev_isspare) | |
| 2861 pvops = &vdev_spare_ops; | |
| 2862 else | |
| 2863 pvops = &vdev_replacing_ops; | |
| 2864 } | |
| 2865 | |
|
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diff
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|
2866 /* |
|
759d20c7e57b
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diff
changeset
|
2867 * Compare the new device size with the replaceable/attachable |
|
759d20c7e57b
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diff
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|
2868 * device size. |
|
759d20c7e57b
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diff
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|
2869 */ |
|
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diff
changeset
|
2870 if (newvd->vdev_psize < vdev_get_rsize(oldvd)) |
| 789 | 2871 return (spa_vdev_exit(spa, newrootvd, txg, EOVERFLOW)); |
| 2872 | |
| 1732 | 2873 /* |
| 2874 * The new device cannot have a higher alignment requirement | |
| 2875 * than the top-level vdev. | |
| 2876 */ | |
| 2877 if (newvd->vdev_ashift > oldvd->vdev_top->vdev_ashift) | |
| 789 | 2878 return (spa_vdev_exit(spa, newrootvd, txg, EDOM)); |
| 2879 | |
| 2880 /* | |
| 2881 * If this is an in-place replacement, update oldvd's path and devid | |
| 2882 * to make it distinguishable from newvd, and unopenable from now on. | |
| 2883 */ | |
| 2884 if (strcmp(oldvd->vdev_path, newvd->vdev_path) == 0) { | |
| 2885 spa_strfree(oldvd->vdev_path); | |
| 2886 oldvd->vdev_path = kmem_alloc(strlen(newvd->vdev_path) + 5, | |
| 2887 KM_SLEEP); | |
| 2888 (void) sprintf(oldvd->vdev_path, "%s/%s", | |
| 2889 newvd->vdev_path, "old"); | |
| 2890 if (oldvd->vdev_devid != NULL) { | |
| 2891 spa_strfree(oldvd->vdev_devid); | |
| 2892 oldvd->vdev_devid = NULL; | |
| 2893 } | |
| 2894 } | |
| 2895 | |
| 2896 /* | |
| 2082 | 2897 * If the parent is not a mirror, or if we're replacing, insert the new |
| 2898 * mirror/replacing/spare vdev above oldvd. | |
| 789 | 2899 */ |
| 2900 if (pvd->vdev_ops != pvops) | |
| 2901 pvd = vdev_add_parent(oldvd, pvops); | |
| 2902 | |
| 2903 ASSERT(pvd->vdev_top->vdev_parent == rvd); | |
| 2904 ASSERT(pvd->vdev_ops == pvops); | |
| 2905 ASSERT(oldvd->vdev_parent == pvd); | |
| 2906 | |
| 2907 /* | |
| 2908 * Extract the new device from its root and add it to pvd. | |
| 2909 */ | |
| 2910 vdev_remove_child(newrootvd, newvd); | |
| 2911 newvd->vdev_id = pvd->vdev_children; | |
| 2912 vdev_add_child(pvd, newvd); | |
| 2913 | |
| 1544 | 2914 /* |
| 2915 * If newvd is smaller than oldvd, but larger than its rsize, | |
| 2916 * the addition of newvd may have decreased our parent's asize. | |
| 2917 */ | |
| 2918 pvd->vdev_asize = MIN(pvd->vdev_asize, newvd->vdev_asize); | |
| 2919 | |
| 789 | 2920 tvd = newvd->vdev_top; |
| 2921 ASSERT(pvd->vdev_top == tvd); | |
| 2922 ASSERT(tvd->vdev_parent == rvd); | |
| 2923 | |
| 2924 vdev_config_dirty(tvd); | |
| 2925 | |
| 2926 /* | |
| 2927 * Set newvd's DTL to [TXG_INITIAL, open_txg]. It will propagate | |
| 2928 * upward when spa_vdev_exit() calls vdev_dtl_reassess(). | |
| 2929 */ | |
| 2930 open_txg = txg + TXG_CONCURRENT_STATES - 1; | |
| 2931 | |
| 2932 mutex_enter(&newvd->vdev_dtl_lock); | |
| 2933 space_map_add(&newvd->vdev_dtl_map, TXG_INITIAL, | |
| 2934 open_txg - TXG_INITIAL + 1); | |
| 2935 mutex_exit(&newvd->vdev_dtl_lock); | |
| 2936 | |
|
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|
2937 if (newvd->vdev_isspare) |
|
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|
2938 spa_spare_activate(newvd); |
|
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diff
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|
2939 oldvdpath = spa_strdup(vdev_description(oldvd)); |
|
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diff
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|
2940 newvdpath = spa_strdup(vdev_description(newvd)); |
|
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6734585 zpool history should log when a spare device becomes active
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parents:
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diff
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|
2941 newvd_isspare = newvd->vdev_isspare; |
| 1544 | 2942 |
| 789 | 2943 /* |
| 2944 * Mark newvd's DTL dirty in this txg. | |
| 2945 */ | |
| 1732 | 2946 vdev_dirty(tvd, VDD_DTL, newvd, txg); |
| 789 | 2947 |
| 2948 (void) spa_vdev_exit(spa, newrootvd, open_txg, 0); | |
| 2949 | |
|
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|
2950 tx = dmu_tx_create_dd(spa_get_dsl(spa)->dp_mos_dir); |
|
99e2110471bb
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|
2951 if (dmu_tx_assign(tx, TXG_WAIT) == 0) { |
|
99e2110471bb
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diff
changeset
|
2952 spa_history_internal_log(LOG_POOL_VDEV_ATTACH, spa, tx, |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
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diff
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|
2953 CRED(), "%s vdev=%s %s vdev=%s", |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
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diff
changeset
|
2954 replacing && newvd_isspare ? "spare in" : |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
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diff
changeset
|
2955 replacing ? "replace" : "attach", newvdpath, |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
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|
2956 replacing ? "for" : "to", oldvdpath); |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
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diff
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|
2957 dmu_tx_commit(tx); |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
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|
2958 } else { |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
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|
2959 dmu_tx_abort(tx); |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
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|
2960 } |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
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diff
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|
2961 |
|
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6734585 zpool history should log when a spare device becomes active
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|
2962 spa_strfree(oldvdpath); |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
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diff
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|
2963 spa_strfree(newvdpath); |
|
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|
2964 |
| 789 | 2965 /* |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
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diff
changeset
|
2966 * Kick off a resilver to update newvd. |
| 789 | 2967 */ |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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diff
changeset
|
2968 VERIFY3U(spa_scrub(spa, POOL_SCRUB_RESILVER), ==, 0); |
| 789 | 2969 |
| 2970 return (0); | |
| 2971 } | |
| 2972 | |
| 2973 /* | |
| 2974 * Detach a device from a mirror or replacing vdev. | |
| 2975 * If 'replace_done' is specified, only detach if the parent | |
| 2976 * is a replacing vdev. | |
| 2977 */ | |
| 2978 int | |
| 1544 | 2979 spa_vdev_detach(spa_t *spa, uint64_t guid, int replace_done) |
| 789 | 2980 { |
| 2981 uint64_t txg; | |
| 2982 int c, t, error; | |
| 2983 vdev_t *rvd = spa->spa_root_vdev; | |
| 2984 vdev_t *vd, *pvd, *cvd, *tvd; | |
| 2082 | 2985 boolean_t unspare = B_FALSE; |
| 2986 uint64_t unspare_guid; | |
|
6673
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diff
changeset
|
2987 size_t len; |
| 789 | 2988 |
| 2989 txg = spa_vdev_enter(spa); | |
| 2990 | |
|
6643
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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diff
changeset
|
2991 vd = spa_lookup_by_guid(spa, guid, B_FALSE); |
| 789 | 2992 |
| 2993 if (vd == NULL) | |
| 2994 return (spa_vdev_exit(spa, NULL, txg, ENODEV)); | |
| 2995 | |
|
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
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diff
changeset
|
2996 if (!vd->vdev_ops->vdev_op_leaf) |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
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diff
changeset
|
2997 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
|
4ad213e858a9
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|
2998 |
| 789 | 2999 pvd = vd->vdev_parent; |
| 3000 | |
| 3001 /* | |
| 3002 * If replace_done is specified, only remove this device if it's | |
| 2082 | 3003 * the first child of a replacing vdev. For the 'spare' vdev, either |
| 3004 * disk can be removed. | |
| 789 | 3005 */ |
| 2082 | 3006 if (replace_done) { |
| 3007 if (pvd->vdev_ops == &vdev_replacing_ops) { | |
| 3008 if (vd->vdev_id != 0) | |
| 3009 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
| 3010 } else if (pvd->vdev_ops != &vdev_spare_ops) { | |
| 3011 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
| 3012 } | |
| 3013 } | |
| 3014 | |
| 3015 ASSERT(pvd->vdev_ops != &vdev_spare_ops || | |
| 4577 | 3016 spa_version(spa) >= SPA_VERSION_SPARES); |
| 789 | 3017 |
| 3018 /* | |
| 2082 | 3019 * Only mirror, replacing, and spare vdevs support detach. |
| 789 | 3020 */ |
| 3021 if (pvd->vdev_ops != &vdev_replacing_ops && | |
| 2082 | 3022 pvd->vdev_ops != &vdev_mirror_ops && |
| 3023 pvd->vdev_ops != &vdev_spare_ops) | |
| 789 | 3024 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
| 3025 | |
| 3026 /* | |
| 3027 * If there's only one replica, you can't detach it. | |
| 3028 */ | |
| 3029 if (pvd->vdev_children <= 1) | |
| 3030 return (spa_vdev_exit(spa, NULL, txg, EBUSY)); | |
| 3031 | |
| 3032 /* | |
| 3033 * If all siblings have non-empty DTLs, this device may have the only | |
| 3034 * valid copy of the data, which means we cannot safely detach it. | |
| 3035 * | |
| 3036 * XXX -- as in the vdev_offline() case, we really want a more | |
| 3037 * precise DTL check. | |
| 3038 */ | |
| 3039 for (c = 0; c < pvd->vdev_children; c++) { | |
| 3040 uint64_t dirty; | |
| 3041 | |
| 3042 cvd = pvd->vdev_child[c]; | |
| 3043 if (cvd == vd) | |
| 3044 continue; | |
| 3045 if (vdev_is_dead(cvd)) | |
| 3046 continue; | |
| 3047 mutex_enter(&cvd->vdev_dtl_lock); | |
| 3048 dirty = cvd->vdev_dtl_map.sm_space | | |
| 3049 cvd->vdev_dtl_scrub.sm_space; | |
| 3050 mutex_exit(&cvd->vdev_dtl_lock); | |
| 3051 if (!dirty) | |
| 3052 break; | |
| 3053 } | |
| 2082 | 3054 |
| 3055 /* | |
| 3056 * If we are a replacing or spare vdev, then we can always detach the | |
| 3057 * latter child, as that is how one cancels the operation. | |
| 3058 */ | |
| 3059 if ((pvd->vdev_ops == &vdev_mirror_ops || vd->vdev_id != 1) && | |
| 3060 c == pvd->vdev_children) | |
| 789 | 3061 return (spa_vdev_exit(spa, NULL, txg, EBUSY)); |
| 3062 | |
| 3063 /* | |
|
6673
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diff
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|
3064 * If we are detaching the second disk from a replacing vdev, then |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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|
3065 * check to see if we changed the original vdev's path to have "/old" |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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changeset
|
3066 * at the end in spa_vdev_attach(). If so, undo that change now. |
|
be079d6124af
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|
3067 */ |
|
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|
3068 if (pvd->vdev_ops == &vdev_replacing_ops && vd->vdev_id == 1 && |
|
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diff
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|
3069 pvd->vdev_child[0]->vdev_path != NULL && |
|
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6697301 deadlock between ZFS and devfs can hang system
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|
3070 pvd->vdev_child[1]->vdev_path != NULL) { |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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diff
changeset
|
3071 ASSERT(pvd->vdev_child[1] == vd); |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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diff
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|
3072 cvd = pvd->vdev_child[0]; |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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diff
changeset
|
3073 len = strlen(vd->vdev_path); |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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diff
changeset
|
3074 if (strncmp(cvd->vdev_path, vd->vdev_path, len) == 0 && |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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diff
changeset
|
3075 strcmp(cvd->vdev_path + len, "/old") == 0) { |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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6643
diff
changeset
|
3076 spa_strfree(cvd->vdev_path); |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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6643
diff
changeset
|
3077 cvd->vdev_path = spa_strdup(vd->vdev_path); |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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6643
diff
changeset
|
3078 } |
|
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6697301 deadlock between ZFS and devfs can hang system
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6643
diff
changeset
|
3079 } |
|
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6697301 deadlock between ZFS and devfs can hang system
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changeset
|
3080 |
|
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diff
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|
3081 /* |
| 2082 | 3082 * If we are detaching the original disk from a spare, then it implies |
| 3083 * that the spare should become a real disk, and be removed from the | |
| 3084 * active spare list for the pool. | |
| 3085 */ | |
| 3086 if (pvd->vdev_ops == &vdev_spare_ops && | |
| 3087 vd->vdev_id == 0) | |
| 3088 unspare = B_TRUE; | |
| 3089 | |
| 3090 /* | |
| 789 | 3091 * Erase the disk labels so the disk can be used for other things. |
| 3092 * This must be done after all other error cases are handled, | |
| 3093 * but before we disembowel vd (so we can still do I/O to it). | |
| 3094 * But if we can't do it, don't treat the error as fatal -- | |
| 3095 * it may be that the unwritability of the disk is the reason | |
| 3096 * it's being detached! | |
| 3097 */ | |
|
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a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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3290
diff
changeset
|
3098 error = vdev_label_init(vd, 0, VDEV_LABEL_REMOVE); |
| 789 | 3099 |
| 3100 /* | |
| 3101 * Remove vd from its parent and compact the parent's children. | |
| 3102 */ | |
| 3103 vdev_remove_child(pvd, vd); | |
| 3104 vdev_compact_children(pvd); | |
| 3105 | |
| 3106 /* | |
| 3107 * Remember one of the remaining children so we can get tvd below. | |
| 3108 */ | |
| 3109 cvd = pvd->vdev_child[0]; | |
| 3110 | |
| 3111 /* | |
| 2082 | 3112 * If we need to remove the remaining child from the list of hot spares, |
| 3113 * do it now, marking the vdev as no longer a spare in the process. We | |
| 3114 * must do this before vdev_remove_parent(), because that can change the | |
| 3115 * GUID if it creates a new toplevel GUID. | |
| 3116 */ | |
| 3117 if (unspare) { | |
| 3118 ASSERT(cvd->vdev_isspare); | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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diff
changeset
|
3119 spa_spare_remove(cvd); |
| 2082 | 3120 unspare_guid = cvd->vdev_guid; |
| 3121 } | |
| 3122 | |
| 3123 /* | |
| 789 | 3124 * If the parent mirror/replacing vdev only has one child, |
| 3125 * the parent is no longer needed. Remove it from the tree. | |
| 3126 */ | |
| 3127 if (pvd->vdev_children == 1) | |
| 3128 vdev_remove_parent(cvd); | |
| 3129 | |
| 3130 /* | |
| 3131 * We don't set tvd until now because the parent we just removed | |
| 3132 * may have been the previous top-level vdev. | |
| 3133 */ | |
| 3134 tvd = cvd->vdev_top; | |
| 3135 ASSERT(tvd->vdev_parent == rvd); | |
| 3136 | |
| 3137 /* | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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3290
diff
changeset
|
3138 * Reevaluate the parent vdev state. |
| 789 | 3139 */ |
| 4451 | 3140 vdev_propagate_state(cvd); |
| 789 | 3141 |
| 3142 /* | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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3290
diff
changeset
|
3143 * If the device we just detached was smaller than the others, it may be |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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3290
diff
changeset
|
3144 * possible to add metaslabs (i.e. grow the pool). vdev_metaslab_init() |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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diff
changeset
|
3145 * can't fail because the existing metaslabs are already in core, so |
|
a2fa338530c1
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diff
changeset
|
3146 * there's nothing to read from disk. |
| 789 | 3147 */ |
| 1732 | 3148 VERIFY(vdev_metaslab_init(tvd, txg) == 0); |
| 789 | 3149 |
| 3150 vdev_config_dirty(tvd); | |
| 3151 | |
| 3152 /* | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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|
3153 * Mark vd's DTL as dirty in this txg. vdev_dtl_sync() will see that |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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|
3154 * vd->vdev_detached is set and free vd's DTL object in syncing context. |
|
a2fa338530c1
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|
3155 * But first make sure we're not on any *other* txg's DTL list, to |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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changeset
|
3156 * prevent vd from being accessed after it's freed. |
| 789 | 3157 */ |
| 3158 for (t = 0; t < TXG_SIZE; t++) | |
| 3159 (void) txg_list_remove_this(&tvd->vdev_dtl_list, vd, t); | |
| 1732 | 3160 vd->vdev_detached = B_TRUE; |
| 3161 vdev_dirty(tvd, VDD_DTL, vd, txg); | |
| 789 | 3162 |
| 4451 | 3163 spa_event_notify(spa, vd, ESC_ZFS_VDEV_REMOVE); |
| 3164 | |
| 2082 | 3165 error = spa_vdev_exit(spa, vd, txg, 0); |
| 3166 | |
| 3167 /* | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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diff
changeset
|
3168 * If this was the removal of the original device in a hot spare vdev, |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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|
3169 * then we want to go through and remove the device from the hot spare |
|
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6393525 vdev_reopen() should verify that it's still the same device
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diff
changeset
|
3170 * list of every other pool. |
| 2082 | 3171 */ |
| 3172 if (unspare) { | |
| 3173 spa = NULL; | |
| 3174 mutex_enter(&spa_namespace_lock); | |
| 3175 while ((spa = spa_next(spa)) != NULL) { | |
| 3176 if (spa->spa_state != POOL_STATE_ACTIVE) | |
| 3177 continue; | |
| 3178 | |
| 3179 (void) spa_vdev_remove(spa, unspare_guid, B_TRUE); | |
| 3180 } | |
| 3181 mutex_exit(&spa_namespace_lock); | |
| 3182 } | |
| 3183 | |
| 3184 return (error); | |
| 3185 } | |
| 3186 | |
| 3187 /* | |
| 5450 | 3188 * Remove a spares vdev from the nvlist config. |
| 2082 | 3189 */ |
| 5450 | 3190 static int |
| 3191 spa_remove_spares(spa_aux_vdev_t *sav, uint64_t guid, boolean_t unspare, | |
| 3192 nvlist_t **spares, int nspares, vdev_t *vd) | |
| 2082 | 3193 { |
| 5450 | 3194 nvlist_t *nv, **newspares; |
| 3195 int i, j; | |
| 2082 | 3196 |
| 3197 nv = NULL; | |
| 5450 | 3198 for (i = 0; i < nspares; i++) { |
| 3199 uint64_t theguid; | |
| 3200 | |
| 3201 VERIFY(nvlist_lookup_uint64(spares[i], | |
| 3202 ZPOOL_CONFIG_GUID, &theguid) == 0); | |
| 3203 if (theguid == guid) { | |
| 3204 nv = spares[i]; | |
| 3205 break; | |
| 2082 | 3206 } |
| 3207 } | |
| 3208 | |
| 3209 /* | |
| 5450 | 3210 * Only remove the hot spare if it's not currently in use in this pool. |
| 2082 | 3211 */ |
| 5450 | 3212 if (nv == NULL && vd == NULL) |
| 3213 return (ENOENT); | |
| 3214 | |
| 3215 if (nv == NULL && vd != NULL) | |
| 3216 return (ENOTSUP); | |
| 3217 | |
| 3218 if (!unspare && nv != NULL && vd != NULL) | |
| 3219 return (EBUSY); | |
| 2082 | 3220 |
| 3221 if (nspares == 1) { | |
| 3222 newspares = NULL; | |
| 3223 } else { | |
| 3224 newspares = kmem_alloc((nspares - 1) * sizeof (void *), | |
| 3225 KM_SLEEP); | |
| 3226 for (i = 0, j = 0; i < nspares; i++) { | |
| 3227 if (spares[i] != nv) | |
| 3228 VERIFY(nvlist_dup(spares[i], | |
| 3229 &newspares[j++], KM_SLEEP) == 0); | |
| 3230 } | |
| 3231 } | |
| 3232 | |
| 5450 | 3233 VERIFY(nvlist_remove(sav->sav_config, ZPOOL_CONFIG_SPARES, |
| 2082 | 3234 DATA_TYPE_NVLIST_ARRAY) == 0); |
| 5450 | 3235 VERIFY(nvlist_add_nvlist_array(sav->sav_config, |
| 3236 ZPOOL_CONFIG_SPARES, newspares, nspares - 1) == 0); | |
| 2082 | 3237 for (i = 0; i < nspares - 1; i++) |
| 3238 nvlist_free(newspares[i]); | |
| 3239 kmem_free(newspares, (nspares - 1) * sizeof (void *)); | |
| 5450 | 3240 |
| 3241 return (0); | |
| 3242 } | |
| 3243 | |
| 3244 /* | |
| 3245 * Remove an l2cache vdev from the nvlist config. | |
| 3246 */ | |
| 3247 static int | |
| 3248 spa_remove_l2cache(spa_aux_vdev_t *sav, uint64_t guid, nvlist_t **l2cache, | |
| 3249 int nl2cache, vdev_t *vd) | |
| 3250 { | |
| 3251 nvlist_t *nv, **newl2cache; | |
| 3252 int i, j; | |
| 3253 | |
| 3254 nv = NULL; | |
| 3255 for (i = 0; i < nl2cache; i++) { | |
| 3256 uint64_t theguid; | |
| 3257 | |
| 3258 VERIFY(nvlist_lookup_uint64(l2cache[i], | |
| 3259 ZPOOL_CONFIG_GUID, &theguid) == 0); | |
| 3260 if (theguid == guid) { | |
| 3261 nv = l2cache[i]; | |
| 3262 break; | |
| 3263 } | |
| 3264 } | |
| 3265 | |
| 3266 if (vd == NULL) { | |
| 3267 for (i = 0; i < nl2cache; i++) { | |
| 3268 if (sav->sav_vdevs[i]->vdev_guid == guid) { | |
| 3269 vd = sav->sav_vdevs[i]; | |
| 3270 break; | |
| 3271 } | |
| 3272 } | |
| 3273 } | |
| 3274 | |
| 3275 if (nv == NULL && vd == NULL) | |
| 3276 return (ENOENT); | |
| 3277 | |
| 3278 if (nv == NULL && vd != NULL) | |
| 3279 return (ENOTSUP); | |
| 3280 | |
| 3281 if (nl2cache == 1) { | |
| 3282 newl2cache = NULL; | |
| 3283 } else { | |
| 3284 newl2cache = kmem_alloc((nl2cache - 1) * sizeof (void *), | |
| 3285 KM_SLEEP); | |
| 3286 for (i = 0, j = 0; i < nl2cache; i++) { | |
| 3287 if (l2cache[i] != nv) | |
| 3288 VERIFY(nvlist_dup(l2cache[i], | |
| 3289 &newl2cache[j++], KM_SLEEP) == 0); | |
| 3290 } | |
| 3291 } | |
| 3292 | |
| 3293 VERIFY(nvlist_remove(sav->sav_config, ZPOOL_CONFIG_L2CACHE, | |
| 3294 DATA_TYPE_NVLIST_ARRAY) == 0); | |
| 3295 VERIFY(nvlist_add_nvlist_array(sav->sav_config, | |
| 3296 ZPOOL_CONFIG_L2CACHE, newl2cache, nl2cache - 1) == 0); | |
| 3297 for (i = 0; i < nl2cache - 1; i++) | |
| 3298 nvlist_free(newl2cache[i]); | |
| 3299 kmem_free(newl2cache, (nl2cache - 1) * sizeof (void *)); | |
| 3300 | |
| 3301 return (0); | |
| 3302 } | |
| 3303 | |
| 3304 /* | |
| 3305 * Remove a device from the pool. Currently, this supports removing only hot | |
| 3306 * spares and level 2 ARC devices. | |
| 3307 */ | |
| 3308 int | |
| 3309 spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare) | |
| 3310 { | |
| 3311 vdev_t *vd; | |
| 3312 nvlist_t **spares, **l2cache; | |
| 3313 uint_t nspares, nl2cache; | |
| 3314 int error = 0; | |
| 3315 | |
| 3316 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 3317 | |
|
6643
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eschrock
parents:
6615
diff
changeset
|
3318 vd = spa_lookup_by_guid(spa, guid, B_FALSE); |
| 5450 | 3319 |
| 3320 if (spa->spa_spares.sav_vdevs != NULL && | |
| 3321 nvlist_lookup_nvlist_array(spa->spa_spares.sav_config, | |
| 3322 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0) { | |
| 3323 if ((error = spa_remove_spares(&spa->spa_spares, guid, unspare, | |
| 3324 spares, nspares, vd)) != 0) | |
|
7361
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6715111 A removed L2ARC device should show status REMOVED
Brendan Gregg - Sun Microsystems <Brendan.Gregg@Sun.COM>
parents:
7326
diff
changeset
|
3325 goto cache; |
| 5450 | 3326 spa_load_spares(spa); |
| 3327 spa->spa_spares.sav_sync = B_TRUE; | |
| 3328 goto out; | |
| 3329 } | |
| 3330 | |
|
7361
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Brendan Gregg - Sun Microsystems <Brendan.Gregg@Sun.COM>
parents:
7326
diff
changeset
|
3331 cache: |
| 5450 | 3332 if (spa->spa_l2cache.sav_vdevs != NULL && |
| 3333 nvlist_lookup_nvlist_array(spa->spa_l2cache.sav_config, | |
| 3334 ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0) { | |
| 3335 if ((error = spa_remove_l2cache(&spa->spa_l2cache, guid, | |
| 3336 l2cache, nl2cache, vd)) != 0) | |
| 3337 goto out; | |
| 3338 spa_load_l2cache(spa); | |
| 3339 spa->spa_l2cache.sav_sync = B_TRUE; | |
| 3340 } | |
| 2082 | 3341 |
| 3342 out: | |
| 3343 spa_config_exit(spa, FTAG); | |
| 5450 | 3344 return (error); |
| 789 | 3345 } |
| 3346 | |
| 3347 /* | |
| 4451 | 3348 * Find any device that's done replacing, or a vdev marked 'unspare' that's |
| 3349 * current spared, so we can detach it. | |
| 789 | 3350 */ |
| 1544 | 3351 static vdev_t * |
| 4451 | 3352 spa_vdev_resilver_done_hunt(vdev_t *vd) |
| 789 | 3353 { |
| 1544 | 3354 vdev_t *newvd, *oldvd; |
| 789 | 3355 int c; |
| 3356 | |
| 1544 | 3357 for (c = 0; c < vd->vdev_children; c++) { |
| 4451 | 3358 oldvd = spa_vdev_resilver_done_hunt(vd->vdev_child[c]); |
| 1544 | 3359 if (oldvd != NULL) |
| 3360 return (oldvd); | |
| 3361 } | |
| 789 | 3362 |
| 4451 | 3363 /* |
| 3364 * Check for a completed replacement. | |
| 3365 */ | |
| 789 | 3366 if (vd->vdev_ops == &vdev_replacing_ops && vd->vdev_children == 2) { |
| 1544 | 3367 oldvd = vd->vdev_child[0]; |
| 3368 newvd = vd->vdev_child[1]; | |
| 789 | 3369 |
| 1544 | 3370 mutex_enter(&newvd->vdev_dtl_lock); |
| 3371 if (newvd->vdev_dtl_map.sm_space == 0 && | |
| 3372 newvd->vdev_dtl_scrub.sm_space == 0) { | |
| 3373 mutex_exit(&newvd->vdev_dtl_lock); | |
| 3374 return (oldvd); | |
| 3375 } | |
| 3376 mutex_exit(&newvd->vdev_dtl_lock); | |
| 3377 } | |
| 789 | 3378 |
| 4451 | 3379 /* |
| 3380 * Check for a completed resilver with the 'unspare' flag set. | |
| 3381 */ | |
| 3382 if (vd->vdev_ops == &vdev_spare_ops && vd->vdev_children == 2) { | |
| 3383 newvd = vd->vdev_child[0]; | |
| 3384 oldvd = vd->vdev_child[1]; | |
| 3385 | |
| 3386 mutex_enter(&newvd->vdev_dtl_lock); | |
| 3387 if (newvd->vdev_unspare && | |
| 3388 newvd->vdev_dtl_map.sm_space == 0 && | |
| 3389 newvd->vdev_dtl_scrub.sm_space == 0) { | |
| 3390 newvd->vdev_unspare = 0; | |
| 3391 mutex_exit(&newvd->vdev_dtl_lock); | |
| 3392 return (oldvd); | |
| 3393 } | |
| 3394 mutex_exit(&newvd->vdev_dtl_lock); | |
| 3395 } | |
| 3396 | |
| 1544 | 3397 return (NULL); |
| 789 | 3398 } |
| 3399 | |
| 1544 | 3400 static void |
| 4451 | 3401 spa_vdev_resilver_done(spa_t *spa) |
| 789 | 3402 { |
| 1544 | 3403 vdev_t *vd; |
| 2082 | 3404 vdev_t *pvd; |
| 1544 | 3405 uint64_t guid; |
| 2082 | 3406 uint64_t pguid = 0; |
| 789 | 3407 |
| 1544 | 3408 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 3409 |
| 4451 | 3410 while ((vd = spa_vdev_resilver_done_hunt(spa->spa_root_vdev)) != NULL) { |
| 1544 | 3411 guid = vd->vdev_guid; |
| 2082 | 3412 /* |
| 3413 * If we have just finished replacing a hot spared device, then | |
| 3414 * we need to detach the parent's first child (the original hot | |
| 3415 * spare) as well. | |
| 3416 */ | |
| 3417 pvd = vd->vdev_parent; | |
| 3418 if (pvd->vdev_parent->vdev_ops == &vdev_spare_ops && | |
| 3419 pvd->vdev_id == 0) { | |
| 3420 ASSERT(pvd->vdev_ops == &vdev_replacing_ops); | |
| 3421 ASSERT(pvd->vdev_parent->vdev_children == 2); | |
| 3422 pguid = pvd->vdev_parent->vdev_child[1]->vdev_guid; | |
| 3423 } | |
| 1544 | 3424 spa_config_exit(spa, FTAG); |
| 3425 if (spa_vdev_detach(spa, guid, B_TRUE) != 0) | |
| 3426 return; | |
| 2082 | 3427 if (pguid != 0 && spa_vdev_detach(spa, pguid, B_TRUE) != 0) |
| 3428 return; | |
| 1544 | 3429 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 3430 } |
| 3431 | |
| 1544 | 3432 spa_config_exit(spa, FTAG); |
| 789 | 3433 } |
| 3434 | |
| 3435 /* | |
|
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parents:
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|
3436 * Update the stored path for this vdev. Dirty the vdev configuration, relying |
|
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|
3437 * on spa_vdev_enter/exit() to synchronize the labels and cache. |
|
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|
3438 */ |
|
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|
3439 int |
|
81359ee1ee63
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diff
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|
3440 spa_vdev_setpath(spa_t *spa, uint64_t guid, const char *newpath) |
|
81359ee1ee63
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|
3441 { |
|
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|
3442 vdev_t *vd; |
|
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|
3443 uint64_t txg; |
|
81359ee1ee63
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diff
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|
3444 |
|
81359ee1ee63
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|
3445 txg = spa_vdev_enter(spa); |
|
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diff
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|
3446 |
|
6643
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diff
changeset
|
3447 if ((vd = spa_lookup_by_guid(spa, guid, B_TRUE)) == NULL) { |
| 2082 | 3448 /* |
|
6643
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6625086 changing cachefile doesn't remove old cache on last user
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parents:
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diff
changeset
|
3449 * Determine if this is a reference to a hot spare device. If |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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parents:
6615
diff
changeset
|
3450 * it is, update the path manually as there is no associated |
|
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parents:
6615
diff
changeset
|
3451 * vdev_t that can be synced to disk. |
| 2082 | 3452 */ |
|
6643
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6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
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diff
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|
3453 nvlist_t **spares; |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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parents:
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diff
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|
3454 uint_t i, nspares; |
| 5450 | 3455 |
| 3456 if (spa->spa_spares.sav_config != NULL) { | |
| 3457 VERIFY(nvlist_lookup_nvlist_array( | |
| 3458 spa->spa_spares.sav_config, ZPOOL_CONFIG_SPARES, | |
| 3459 &spares, &nspares) == 0); | |
| 2082 | 3460 for (i = 0; i < nspares; i++) { |
| 3461 uint64_t theguid; | |
| 3462 VERIFY(nvlist_lookup_uint64(spares[i], | |
| 3463 ZPOOL_CONFIG_GUID, &theguid) == 0); | |
| 5450 | 3464 if (theguid == guid) { |
| 3465 VERIFY(nvlist_add_string(spares[i], | |
| 3466 ZPOOL_CONFIG_PATH, newpath) == 0); | |
| 3467 spa_load_spares(spa); | |
| 3468 spa->spa_spares.sav_sync = B_TRUE; | |
| 3469 return (spa_vdev_exit(spa, NULL, txg, | |
| 3470 0)); | |
| 3471 } | |
| 2082 | 3472 } |
| 3473 } | |
| 5450 | 3474 |
| 3475 return (spa_vdev_exit(spa, NULL, txg, ENOENT)); | |
| 2082 | 3476 } |
|
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|
3477 |
|
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
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diff
changeset
|
3478 if (!vd->vdev_ops->vdev_op_leaf) |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
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diff
changeset
|
3479 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
|
4ad213e858a9
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|
3480 |
|
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|
3481 spa_strfree(vd->vdev_path); |
|
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|
3482 vd->vdev_path = spa_strdup(newpath); |
|
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|
3483 |
|
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|
3484 vdev_config_dirty(vd->vdev_top); |
|
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|
3485 |
|
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|
3486 return (spa_vdev_exit(spa, NULL, txg, 0)); |
|
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|
3487 } |
|
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|
3488 |
|
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|
3489 /* |
| 789 | 3490 * ========================================================================== |
| 3491 * SPA Scrubbing | |
| 3492 * ========================================================================== | |
| 3493 */ | |
| 3494 | |
|
7046
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|
3495 int |
|
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diff
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|
3496 spa_scrub(spa_t *spa, pool_scrub_type_t type) |
| 789 | 3497 { |
| 4808 | 3498 ASSERT(!spa_config_held(spa, RW_WRITER)); |
| 3499 | |
| 789 | 3500 if ((uint_t)type >= POOL_SCRUB_TYPES) |
| 3501 return (ENOTSUP); | |
| 3502 | |
| 3503 /* | |
|
7046
361307ae060d
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diff
changeset
|
3504 * If a resilver was requested, but there is no DTL on a |
|
361307ae060d
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diff
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|
3505 * writeable leaf device, we have nothing to do. |
| 789 | 3506 */ |
|
7046
361307ae060d
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diff
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|
3507 if (type == POOL_SCRUB_RESILVER && |
|
361307ae060d
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diff
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|
3508 !vdev_resilver_needed(spa->spa_root_vdev, NULL, NULL)) { |
|
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diff
changeset
|
3509 spa_async_request(spa, SPA_ASYNC_RESILVER_DONE); |
| 1544 | 3510 return (0); |
| 3511 } | |
| 789 | 3512 |
|
7046
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diff
changeset
|
3513 if (type == POOL_SCRUB_EVERYTHING && |
|
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7042
diff
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|
3514 spa->spa_dsl_pool->dp_scrub_func != SCRUB_FUNC_NONE && |
|
361307ae060d
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diff
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|
3515 spa->spa_dsl_pool->dp_scrub_isresilver) |
|
361307ae060d
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7042
diff
changeset
|
3516 return (EBUSY); |
|
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7042
diff
changeset
|
3517 |
|
361307ae060d
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7042
diff
changeset
|
3518 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
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|
3519 return (dsl_pool_scrub_clean(spa->spa_dsl_pool)); |
|
361307ae060d
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7042
diff
changeset
|
3520 } else if (type == POOL_SCRUB_NONE) { |
|
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diff
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|
3521 return (dsl_pool_scrub_cancel(spa->spa_dsl_pool)); |
| 1544 | 3522 } else { |
|
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3523 return (EINVAL); |
| 1544 | 3524 } |
| 789 | 3525 } |
| 3526 | |
| 1544 | 3527 /* |
| 3528 * ========================================================================== | |
| 3529 * SPA async task processing | |
| 3530 * ========================================================================== | |
| 3531 */ | |
| 3532 | |
| 3533 static void | |
| 4451 | 3534 spa_async_remove(spa_t *spa, vdev_t *vd) |
| 789 | 3535 { |
| 1544 | 3536 int c; |
| 3537 | |
|
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3538 if (vd->vdev_remove_wanted) { |
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3539 vd->vdev_remove_wanted = 0; |
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3540 vdev_set_state(vd, B_FALSE, VDEV_STATE_REMOVED, VDEV_AUX_NONE); |
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3541 vdev_clear(spa, vd, B_TRUE); |
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3542 vdev_config_dirty(vd->vdev_top); |
| 1544 | 3543 } |
|
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3544 |
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3545 for (c = 0; c < vd->vdev_children; c++) |
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3546 spa_async_remove(spa, vd->vdev_child[c]); |
| 1544 | 3547 } |
| 3548 | |
| 3549 static void | |
| 3550 spa_async_thread(spa_t *spa) | |
| 3551 { | |
|
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3552 int tasks, i; |
| 4451 | 3553 uint64_t txg; |
| 1544 | 3554 |
| 3555 ASSERT(spa->spa_sync_on); | |
| 789 | 3556 |
| 1544 | 3557 mutex_enter(&spa->spa_async_lock); |
| 3558 tasks = spa->spa_async_tasks; | |
| 3559 spa->spa_async_tasks = 0; | |
| 3560 mutex_exit(&spa->spa_async_lock); | |
| 3561 | |
| 3562 /* | |
|
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3563 * See if the config needs to be updated. |
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3564 */ |
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3565 if (tasks & SPA_ASYNC_CONFIG_UPDATE) { |
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3566 mutex_enter(&spa_namespace_lock); |
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3567 spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); |
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3568 mutex_exit(&spa_namespace_lock); |
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3569 } |
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3570 |
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3571 /* |
| 4451 | 3572 * See if any devices need to be marked REMOVED. |
| 5329 | 3573 * |
| 3574 * XXX - We avoid doing this when we are in | |
| 3575 * I/O failure state since spa_vdev_enter() grabs | |
| 3576 * the namespace lock and would not be able to obtain | |
| 3577 * the writer config lock. | |
| 1544 | 3578 */ |
| 5329 | 3579 if (tasks & SPA_ASYNC_REMOVE && |
| 3580 spa_state(spa) != POOL_STATE_IO_FAILURE) { | |
| 4451 | 3581 txg = spa_vdev_enter(spa); |
| 3582 spa_async_remove(spa, spa->spa_root_vdev); | |
|
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3583 for (i = 0; i < spa->spa_l2cache.sav_count; i++) |
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3584 spa_async_remove(spa, spa->spa_l2cache.sav_vdevs[i]); |
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3585 for (i = 0; i < spa->spa_spares.sav_count; i++) |
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|
3586 spa_async_remove(spa, spa->spa_spares.sav_vdevs[i]); |
| 4451 | 3587 (void) spa_vdev_exit(spa, NULL, txg, 0); |
| 3588 } | |
| 1544 | 3589 |
| 3590 /* | |
| 3591 * If any devices are done replacing, detach them. | |
| 3592 */ | |
| 4451 | 3593 if (tasks & SPA_ASYNC_RESILVER_DONE) |
| 3594 spa_vdev_resilver_done(spa); | |
| 789 | 3595 |
| 1544 | 3596 /* |
| 3597 * Kick off a resilver. | |
| 3598 */ | |
|
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3599 if (tasks & SPA_ASYNC_RESILVER) |
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3600 VERIFY(spa_scrub(spa, POOL_SCRUB_RESILVER) == 0); |
| 1544 | 3601 |
| 3602 /* | |
| 3603 * Let the world know that we're done. | |
| 3604 */ | |
| 3605 mutex_enter(&spa->spa_async_lock); | |
| 3606 spa->spa_async_thread = NULL; | |
| 3607 cv_broadcast(&spa->spa_async_cv); | |
| 3608 mutex_exit(&spa->spa_async_lock); | |
| 3609 thread_exit(); | |
| 3610 } | |
| 3611 | |
| 3612 void | |
| 3613 spa_async_suspend(spa_t *spa) | |
| 3614 { | |
| 3615 mutex_enter(&spa->spa_async_lock); | |
| 3616 spa->spa_async_suspended++; | |
| 3617 while (spa->spa_async_thread != NULL) | |
| 3618 cv_wait(&spa->spa_async_cv, &spa->spa_async_lock); | |
| 3619 mutex_exit(&spa->spa_async_lock); | |
| 3620 } | |
| 3621 | |
| 3622 void | |
| 3623 spa_async_resume(spa_t *spa) | |
| 3624 { | |
| 3625 mutex_enter(&spa->spa_async_lock); | |
| 3626 ASSERT(spa->spa_async_suspended != 0); | |
| 3627 spa->spa_async_suspended--; | |
| 3628 mutex_exit(&spa->spa_async_lock); | |
| 3629 } | |
| 3630 | |
| 3631 static void | |
| 3632 spa_async_dispatch(spa_t *spa) | |
| 3633 { | |
| 3634 mutex_enter(&spa->spa_async_lock); | |
| 3635 if (spa->spa_async_tasks && !spa->spa_async_suspended && | |
|
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3636 spa->spa_async_thread == NULL && |
|
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3637 rootdir != NULL && !vn_is_readonly(rootdir)) |
| 1544 | 3638 spa->spa_async_thread = thread_create(NULL, 0, |
| 3639 spa_async_thread, spa, 0, &p0, TS_RUN, maxclsyspri); | |
| 3640 mutex_exit(&spa->spa_async_lock); | |
| 3641 } | |
| 3642 | |
| 3643 void | |
| 3644 spa_async_request(spa_t *spa, int task) | |
| 3645 { | |
| 3646 mutex_enter(&spa->spa_async_lock); | |
| 3647 spa->spa_async_tasks |= task; | |
| 3648 mutex_exit(&spa->spa_async_lock); | |
| 789 | 3649 } |
| 3650 | |
| 3651 /* | |
| 3652 * ========================================================================== | |
| 3653 * SPA syncing routines | |
| 3654 * ========================================================================== | |
| 3655 */ | |
| 3656 | |
| 3657 static void | |
| 3658 spa_sync_deferred_frees(spa_t *spa, uint64_t txg) | |
| 3659 { | |
| 3660 bplist_t *bpl = &spa->spa_sync_bplist; | |
| 3661 dmu_tx_t *tx; | |
| 3662 blkptr_t blk; | |
| 3663 uint64_t itor = 0; | |
| 3664 zio_t *zio; | |
| 3665 int error; | |
| 3666 uint8_t c = 1; | |
| 3667 | |
| 3668 zio = zio_root(spa, NULL, NULL, ZIO_FLAG_CONFIG_HELD); | |
| 3669 | |
| 3670 while (bplist_iterate(bpl, &itor, &blk) == 0) | |
| 3671 zio_nowait(zio_free(zio, spa, txg, &blk, NULL, NULL)); | |
| 3672 | |
| 3673 error = zio_wait(zio); | |
| 3674 ASSERT3U(error, ==, 0); | |
| 3675 | |
| 3676 tx = dmu_tx_create_assigned(spa->spa_dsl_pool, txg); | |
| 3677 bplist_vacate(bpl, tx); | |
| 3678 | |
| 3679 /* | |
| 3680 * Pre-dirty the first block so we sync to convergence faster. | |
| 3681 * (Usually only the first block is needed.) | |
| 3682 */ | |
| 3683 dmu_write(spa->spa_meta_objset, spa->spa_sync_bplist_obj, 0, 1, &c, tx); | |
| 3684 dmu_tx_commit(tx); | |
| 3685 } | |
| 3686 | |
| 3687 static void | |
| 2082 | 3688 spa_sync_nvlist(spa_t *spa, uint64_t obj, nvlist_t *nv, dmu_tx_t *tx) |
| 3689 { | |
| 3690 char *packed = NULL; | |
| 3691 size_t nvsize = 0; | |
| 3692 dmu_buf_t *db; | |
| 3693 | |
| 3694 VERIFY(nvlist_size(nv, &nvsize, NV_ENCODE_XDR) == 0); | |
| 3695 | |
| 3696 packed = kmem_alloc(nvsize, KM_SLEEP); | |
| 3697 | |
| 3698 VERIFY(nvlist_pack(nv, &packed, &nvsize, NV_ENCODE_XDR, | |
| 3699 KM_SLEEP) == 0); | |
| 3700 | |
| 3701 dmu_write(spa->spa_meta_objset, obj, 0, nvsize, packed, tx); | |
| 3702 | |
| 3703 kmem_free(packed, nvsize); | |
| 3704 | |
| 3705 VERIFY(0 == dmu_bonus_hold(spa->spa_meta_objset, obj, FTAG, &db)); | |
| 3706 dmu_buf_will_dirty(db, tx); | |
| 3707 *(uint64_t *)db->db_data = nvsize; | |
| 3708 dmu_buf_rele(db, FTAG); | |
| 3709 } | |
| 3710 | |
| 3711 static void | |
| 5450 | 3712 spa_sync_aux_dev(spa_t *spa, spa_aux_vdev_t *sav, dmu_tx_t *tx, |
| 3713 const char *config, const char *entry) | |
| 2082 | 3714 { |
| 3715 nvlist_t *nvroot; | |
| 5450 | 3716 nvlist_t **list; |
| 2082 | 3717 int i; |
| 3718 | |
| 5450 | 3719 if (!sav->sav_sync) |
| 2082 | 3720 return; |
| 3721 | |
| 3722 /* | |
| 5450 | 3723 * Update the MOS nvlist describing the list of available devices. |
| 3724 * spa_validate_aux() will have already made sure this nvlist is | |
| 4451 | 3725 * valid and the vdevs are labeled appropriately. |
| 2082 | 3726 */ |
| 5450 | 3727 if (sav->sav_object == 0) { |
| 3728 sav->sav_object = dmu_object_alloc(spa->spa_meta_objset, | |
| 3729 DMU_OT_PACKED_NVLIST, 1 << 14, DMU_OT_PACKED_NVLIST_SIZE, | |
| 3730 sizeof (uint64_t), tx); | |
| 2082 | 3731 VERIFY(zap_update(spa->spa_meta_objset, |
| 5450 | 3732 DMU_POOL_DIRECTORY_OBJECT, entry, sizeof (uint64_t), 1, |
| 3733 &sav->sav_object, tx) == 0); | |
| 2082 | 3734 } |
| 3735 | |
| 3736 VERIFY(nvlist_alloc(&nvroot, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
| 5450 | 3737 if (sav->sav_count == 0) { |
| 3738 VERIFY(nvlist_add_nvlist_array(nvroot, config, NULL, 0) == 0); | |
| 2082 | 3739 } else { |
| 5450 | 3740 list = kmem_alloc(sav->sav_count * sizeof (void *), KM_SLEEP); |
| 3741 for (i = 0; i < sav->sav_count; i++) | |
| 3742 list[i] = vdev_config_generate(spa, sav->sav_vdevs[i], | |
| 3743 B_FALSE, B_FALSE, B_TRUE); | |
| 3744 VERIFY(nvlist_add_nvlist_array(nvroot, config, list, | |
| 3745 sav->sav_count) == 0); | |
| 3746 for (i = 0; i < sav->sav_count; i++) | |
| 3747 nvlist_free(list[i]); | |
| 3748 kmem_free(list, sav->sav_count * sizeof (void *)); | |
| 2082 | 3749 } |
| 3750 | |
| 5450 | 3751 spa_sync_nvlist(spa, sav->sav_object, nvroot, tx); |
| 2926 | 3752 nvlist_free(nvroot); |
| 2082 | 3753 |
| 5450 | 3754 sav->sav_sync = B_FALSE; |
| 2082 | 3755 } |
| 3756 | |
| 3757 static void | |
| 789 | 3758 spa_sync_config_object(spa_t *spa, dmu_tx_t *tx) |
| 3759 { | |
| 3760 nvlist_t *config; | |
| 3761 | |
| 3762 if (list_is_empty(&spa->spa_dirty_list)) | |
| 3763 return; | |
| 3764 | |
| 3765 config = spa_config_generate(spa, NULL, dmu_tx_get_txg(tx), B_FALSE); | |
| 3766 | |
|
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3767 if (spa->spa_config_syncing) |
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3768 nvlist_free(spa->spa_config_syncing); |
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3769 spa->spa_config_syncing = config; |
| 789 | 3770 |
| 2082 | 3771 spa_sync_nvlist(spa, spa->spa_config_object, config, tx); |
| 789 | 3772 } |
| 3773 | |
| 5094 | 3774 /* |
| 3775 * Set zpool properties. | |
| 3776 */ | |
| 3912 | 3777 static void |
| 4543 | 3778 spa_sync_props(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) |
| 3912 | 3779 { |
| 3780 spa_t *spa = arg1; | |
| 5094 | 3781 objset_t *mos = spa->spa_meta_objset; |
| 3912 | 3782 nvlist_t *nvp = arg2; |
| 5094 | 3783 nvpair_t *elem; |
| 4451 | 3784 uint64_t intval; |
|
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3785 char *strval; |
| 5094 | 3786 zpool_prop_t prop; |
| 3787 const char *propname; | |
| 3788 zprop_type_t proptype; | |
|
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3789 spa_config_dirent_t *dp; |
| 5094 | 3790 |
| 3791 elem = NULL; | |
| 3792 while ((elem = nvlist_next_nvpair(nvp, elem))) { | |
| 3793 switch (prop = zpool_name_to_prop(nvpair_name(elem))) { | |
| 3794 case ZPOOL_PROP_VERSION: | |
| 3795 /* | |
| 3796 * Only set version for non-zpool-creation cases | |
| 3797 * (set/import). spa_create() needs special care | |
| 3798 * for version setting. | |
| 3799 */ | |
| 3800 if (tx->tx_txg != TXG_INITIAL) { | |
| 3801 VERIFY(nvpair_value_uint64(elem, | |
| 3802 &intval) == 0); | |
| 3803 ASSERT(intval <= SPA_VERSION); | |
| 3804 ASSERT(intval >= spa_version(spa)); | |
| 3805 spa->spa_uberblock.ub_version = intval; | |
| 3806 vdev_config_dirty(spa->spa_root_vdev); | |
| 3807 } | |
| 3808 break; | |
| 3809 | |
| 3810 case ZPOOL_PROP_ALTROOT: | |
| 3811 /* | |
| 3812 * 'altroot' is a non-persistent property. It should | |
| 3813 * have been set temporarily at creation or import time. | |
| 3814 */ | |
| 3815 ASSERT(spa->spa_root != NULL); | |
| 3816 break; | |
| 3817 | |
| 5363 | 3818 case ZPOOL_PROP_CACHEFILE: |
| 5094 | 3819 /* |
| 5363 | 3820 * 'cachefile' is a non-persistent property, but note |
| 3821 * an async request that the config cache needs to be | |
| 3822 * udpated. | |
| 5094 | 3823 */ |
| 5363 | 3824 VERIFY(nvpair_value_string(elem, &strval) == 0); |
|
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3825 |
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3826 dp = kmem_alloc(sizeof (spa_config_dirent_t), |
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3827 KM_SLEEP); |
|
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3828 |
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3829 if (strval[0] == '\0') |
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3830 dp->scd_path = spa_strdup(spa_config_path); |
|
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3831 else if (strcmp(strval, "none") == 0) |
|
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3832 dp->scd_path = NULL; |
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3833 else |
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3834 dp->scd_path = spa_strdup(strval); |
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3835 |
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3836 list_insert_head(&spa->spa_config_list, dp); |
| 5363 | 3837 spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE); |
| 4543 | 3838 break; |
| 5094 | 3839 default: |
| 3840 /* | |
| 3841 * Set pool property values in the poolprops mos object. | |
| 3842 */ | |
| 3843 mutex_enter(&spa->spa_props_lock); | |
| 3844 if (spa->spa_pool_props_object == 0) { | |
| 3845 objset_t *mos = spa->spa_meta_objset; | |
| 3846 | |
| 3847 VERIFY((spa->spa_pool_props_object = | |
| 3848 zap_create(mos, DMU_OT_POOL_PROPS, | |
| 3849 DMU_OT_NONE, 0, tx)) > 0); | |
| 3850 | |
| 3851 VERIFY(zap_update(mos, | |
| 3852 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_PROPS, | |
| 3853 8, 1, &spa->spa_pool_props_object, tx) | |
| 3854 == 0); | |
| 3855 } | |
| 3856 mutex_exit(&spa->spa_props_lock); | |
| 3857 | |
| 3858 /* normalize the property name */ | |
| 3859 propname = zpool_prop_to_name(prop); | |
| 3860 proptype = zpool_prop_get_type(prop); | |
| 3861 | |
| 3862 if (nvpair_type(elem) == DATA_TYPE_STRING) { | |
| 3863 ASSERT(proptype == PROP_TYPE_STRING); | |
| 3864 VERIFY(nvpair_value_string(elem, &strval) == 0); | |
| 3865 VERIFY(zap_update(mos, | |
| 3866 spa->spa_pool_props_object, propname, | |
| 3867 1, strlen(strval) + 1, strval, tx) == 0); | |
| 3868 | |
| 3869 } else if (nvpair_type(elem) == DATA_TYPE_UINT64) { | |
| 3870 VERIFY(nvpair_value_uint64(elem, &intval) == 0); | |
| 3871 | |
| 3872 if (proptype == PROP_TYPE_INDEX) { | |
| 3873 const char *unused; | |
| 3874 VERIFY(zpool_prop_index_to_string( | |
| 3875 prop, intval, &unused) == 0); | |
| 3876 } | |
| 3877 VERIFY(zap_update(mos, | |
| 3878 spa->spa_pool_props_object, propname, | |
| 3879 8, 1, &intval, tx) == 0); | |
| 3880 } else { | |
| 3881 ASSERT(0); /* not allowed */ | |
| 3882 } | |
| 3883 | |
| 5329 | 3884 switch (prop) { |
| 3885 case ZPOOL_PROP_DELEGATION: | |
| 5094 | 3886 spa->spa_delegation = intval; |
| 5329 | 3887 break; |
| 3888 case ZPOOL_PROP_BOOTFS: | |
| 5094 | 3889 spa->spa_bootfs = intval; |
| 5329 | 3890 break; |
| 3891 case ZPOOL_PROP_FAILUREMODE: | |
| 3892 spa->spa_failmode = intval; | |
| 3893 break; | |
| 3894 default: | |
| 3895 break; | |
| 3896 } | |
| 3912 | 3897 } |
| 5094 | 3898 |
| 3899 /* log internal history if this is not a zpool create */ | |
| 3900 if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY && | |
| 3901 tx->tx_txg != TXG_INITIAL) { | |
| 3902 spa_history_internal_log(LOG_POOL_PROPSET, | |
| 3903 spa, tx, cr, "%s %lld %s", | |
| 3904 nvpair_name(elem), intval, spa->spa_name); | |
| 3905 } | |
| 3912 | 3906 } |
| 3907 } | |
| 3908 | |
| 789 | 3909 /* |
| 3910 * Sync the specified transaction group. New blocks may be dirtied as | |
| 3911 * part of the process, so we iterate until it converges. | |
| 3912 */ | |
| 3913 void | |
| 3914 spa_sync(spa_t *spa, uint64_t txg) | |
| 3915 { | |
| 3916 dsl_pool_t *dp = spa->spa_dsl_pool; | |
| 3917 objset_t *mos = spa->spa_meta_objset; | |
| 3918 bplist_t *bpl = &spa->spa_sync_bplist; | |
|
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|
3919 vdev_t *rvd = spa->spa_root_vdev; |
| 789 | 3920 vdev_t *vd; |
| 3921 dmu_tx_t *tx; | |
| 3922 int dirty_vdevs; | |
| 3923 | |
| 3924 /* | |
| 3925 * Lock out configuration changes. | |
| 3926 */ | |
| 1544 | 3927 spa_config_enter(spa, RW_READER, FTAG); |
| 789 | 3928 |
| 3929 spa->spa_syncing_txg = txg; | |
| 3930 spa->spa_sync_pass = 0; | |
| 3931 | |
| 1544 | 3932 VERIFY(0 == bplist_open(bpl, mos, spa->spa_sync_bplist_obj)); |
| 789 | 3933 |
| 2082 | 3934 tx = dmu_tx_create_assigned(dp, txg); |
| 3935 | |
| 3936 /* | |
| 4577 | 3937 * If we are upgrading to SPA_VERSION_RAIDZ_DEFLATE this txg, |
| 2082 | 3938 * set spa_deflate if we have no raid-z vdevs. |
| 3939 */ | |
| 4577 | 3940 if (spa->spa_ubsync.ub_version < SPA_VERSION_RAIDZ_DEFLATE && |
| 3941 spa->spa_uberblock.ub_version >= SPA_VERSION_RAIDZ_DEFLATE) { | |
| 2082 | 3942 int i; |
| 3943 | |
| 3944 for (i = 0; i < rvd->vdev_children; i++) { | |
| 3945 vd = rvd->vdev_child[i]; | |
| 3946 if (vd->vdev_deflate_ratio != SPA_MINBLOCKSIZE) | |
| 3947 break; | |
| 3948 } | |
| 3949 if (i == rvd->vdev_children) { | |
| 3950 spa->spa_deflate = TRUE; | |
| 3951 VERIFY(0 == zap_add(spa->spa_meta_objset, | |
| 3952 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
| 3953 sizeof (uint64_t), 1, &spa->spa_deflate, tx)); | |
| 3954 } | |
| 3955 } | |
| 3956 | |
|
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|
3957 if (spa->spa_ubsync.ub_version < SPA_VERSION_ORIGIN && |
|
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|
3958 spa->spa_uberblock.ub_version >= SPA_VERSION_ORIGIN) { |
|
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|
3959 dsl_pool_create_origin(dp, tx); |
|
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|
3960 |
|
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|
3961 /* Keeping the origin open increases spa_minref */ |
|
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|
3962 spa->spa_minref += 3; |
|
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|
3963 } |
|
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|
3964 |
|
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|
3965 if (spa->spa_ubsync.ub_version < SPA_VERSION_NEXT_CLONES && |
|
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|
3966 spa->spa_uberblock.ub_version >= SPA_VERSION_NEXT_CLONES) { |
|
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|
3967 dsl_pool_upgrade_clones(dp, tx); |
|
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|
3968 } |
|
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|
3969 |
| 789 | 3970 /* |
| 3971 * If anything has changed in this txg, push the deferred frees | |
| 3972 * from the previous txg. If not, leave them alone so that we | |
| 3973 * don't generate work on an otherwise idle system. | |
| 3974 */ | |
| 3975 if (!txg_list_empty(&dp->dp_dirty_datasets, txg) || | |
|
2329
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|
3976 !txg_list_empty(&dp->dp_dirty_dirs, txg) || |
|
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|
3977 !txg_list_empty(&dp->dp_sync_tasks, txg)) |
| 789 | 3978 spa_sync_deferred_frees(spa, txg); |
| 3979 | |
| 3980 /* | |
| 3981 * Iterate to convergence. | |
| 3982 */ | |
| 3983 do { | |
| 3984 spa->spa_sync_pass++; | |
| 3985 | |
| 3986 spa_sync_config_object(spa, tx); | |
| 5450 | 3987 spa_sync_aux_dev(spa, &spa->spa_spares, tx, |
| 3988 ZPOOL_CONFIG_SPARES, DMU_POOL_SPARES); | |
| 3989 spa_sync_aux_dev(spa, &spa->spa_l2cache, tx, | |
| 3990 ZPOOL_CONFIG_L2CACHE, DMU_POOL_L2CACHE); | |
| 1544 | 3991 spa_errlog_sync(spa, txg); |
| 789 | 3992 dsl_pool_sync(dp, txg); |
| 3993 | |
| 3994 dirty_vdevs = 0; | |
| 3995 while (vd = txg_list_remove(&spa->spa_vdev_txg_list, txg)) { | |
| 3996 vdev_sync(vd, txg); | |
| 3997 dirty_vdevs++; | |
| 3998 } | |
| 3999 | |
| 4000 bplist_sync(bpl, tx); | |
| 4001 } while (dirty_vdevs); | |
| 4002 | |
| 4003 bplist_close(bpl); | |
| 4004 | |
| 4005 dprintf("txg %llu passes %d\n", txg, spa->spa_sync_pass); | |
| 4006 | |
| 4007 /* | |
| 4008 * Rewrite the vdev configuration (which includes the uberblock) | |
| 4009 * to commit the transaction group. | |
|
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|
4010 * |
|
5688
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|
4011 * If there are no dirty vdevs, we sync the uberblock to a few |
|
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|
4012 * random top-level vdevs that are known to be visible in the |
|
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|
4013 * config cache (see spa_vdev_add() for details). If there *are* |
|
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|
4014 * dirty vdevs -- or if the sync to our random subset fails -- |
|
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|
4015 * then sync the uberblock to all vdevs. |
| 789 | 4016 */ |
|
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|
4017 if (list_is_empty(&spa->spa_dirty_list)) { |
|
6615
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|
4018 vdev_t *svd[SPA_DVAS_PER_BP]; |
|
333cfc13ec55
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|
4019 int svdcount = 0; |
|
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4020 int children = rvd->vdev_children; |
|
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|
4021 int c0 = spa_get_random(children); |
|
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|
4022 int c; |
|
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|
4023 |
|
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|
4024 for (c = 0; c < children; c++) { |
|
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|
4025 vd = rvd->vdev_child[(c0 + c) % children]; |
|
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4026 if (vd->vdev_ms_array == 0 || vd->vdev_islog) |
|
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4027 continue; |
|
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|
4028 svd[svdcount++] = vd; |
|
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|
4029 if (svdcount == SPA_DVAS_PER_BP) |
|
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|
4030 break; |
|
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|
4031 } |
|
6615
333cfc13ec55
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|
4032 vdev_config_sync(svd, svdcount, txg); |
|
333cfc13ec55
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|
4033 } else { |
|
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|
4034 vdev_config_sync(rvd->vdev_child, rvd->vdev_children, txg); |
|
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|
4035 } |
| 2082 | 4036 dmu_tx_commit(tx); |
| 4037 | |
|
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|
4038 /* |
|
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|
4039 * Clear the dirty config list. |
|
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|
4040 */ |
|
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|
4041 while ((vd = list_head(&spa->spa_dirty_list)) != NULL) |
|
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|
4042 vdev_config_clean(vd); |
|
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|
4043 |
|
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|
4044 /* |
|
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|
4045 * Now that the new config has synced transactionally, |
|
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|
4046 * let it become visible to the config cache. |
|
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|
4047 */ |
|
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|
4048 if (spa->spa_config_syncing != NULL) { |
|
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|
4049 spa_config_set(spa, spa->spa_config_syncing); |
|
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|
4050 spa->spa_config_txg = txg; |
|
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|
4051 spa->spa_config_syncing = NULL; |
|
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|
4052 } |
| 789 | 4053 |
|
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|
4054 spa->spa_traverse_wanted = B_TRUE; |
| 789 | 4055 rw_enter(&spa->spa_traverse_lock, RW_WRITER); |
|
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|
4056 spa->spa_traverse_wanted = B_FALSE; |
| 789 | 4057 spa->spa_ubsync = spa->spa_uberblock; |
| 4058 rw_exit(&spa->spa_traverse_lock); | |
| 4059 | |
| 4060 /* | |
| 4061 * Clean up the ZIL records for the synced txg. | |
| 4062 */ | |
| 4063 dsl_pool_zil_clean(dp); | |
| 4064 | |
| 4065 /* | |
| 4066 * Update usable space statistics. | |
| 4067 */ | |
| 4068 while (vd = txg_list_remove(&spa->spa_vdev_txg_list, TXG_CLEAN(txg))) | |
| 4069 vdev_sync_done(vd, txg); | |
| 4070 | |
| 4071 /* | |
| 4072 * It had better be the case that we didn't dirty anything | |
| 2082 | 4073 * since vdev_config_sync(). |
| 789 | 4074 */ |
| 4075 ASSERT(txg_list_empty(&dp->dp_dirty_datasets, txg)); | |
| 4076 ASSERT(txg_list_empty(&dp->dp_dirty_dirs, txg)); | |
| 4077 ASSERT(txg_list_empty(&spa->spa_vdev_txg_list, txg)); | |
| 4078 ASSERT(bpl->bpl_queue == NULL); | |
| 4079 | |
| 1544 | 4080 spa_config_exit(spa, FTAG); |
| 4081 | |
| 4082 /* | |
| 4083 * If any async tasks have been requested, kick them off. | |
| 4084 */ | |
| 4085 spa_async_dispatch(spa); | |
| 789 | 4086 } |
| 4087 | |
| 4088 /* | |
| 4089 * Sync all pools. We don't want to hold the namespace lock across these | |
| 4090 * operations, so we take a reference on the spa_t and drop the lock during the | |
| 4091 * sync. | |
| 4092 */ | |
| 4093 void | |
| 4094 spa_sync_allpools(void) | |
| 4095 { | |
| 4096 spa_t *spa = NULL; | |
| 4097 mutex_enter(&spa_namespace_lock); | |
| 4098 while ((spa = spa_next(spa)) != NULL) { | |
| 4099 if (spa_state(spa) != POOL_STATE_ACTIVE) | |
| 4100 continue; | |
| 4101 spa_open_ref(spa, FTAG); | |
| 4102 mutex_exit(&spa_namespace_lock); | |
| 4103 txg_wait_synced(spa_get_dsl(spa), 0); | |
| 4104 mutex_enter(&spa_namespace_lock); | |
| 4105 spa_close(spa, FTAG); | |
| 4106 } | |
| 4107 mutex_exit(&spa_namespace_lock); | |
| 4108 } | |
| 4109 | |
| 4110 /* | |
| 4111 * ========================================================================== | |
| 4112 * Miscellaneous routines | |
| 4113 * ========================================================================== | |
| 4114 */ | |
| 4115 | |
| 4116 /* | |
| 4117 * Remove all pools in the system. | |
| 4118 */ | |
| 4119 void | |
| 4120 spa_evict_all(void) | |
| 4121 { | |
| 4122 spa_t *spa; | |
| 4123 | |
| 4124 /* | |
| 4125 * Remove all cached state. All pools should be closed now, | |
| 4126 * so every spa in the AVL tree should be unreferenced. | |
| 4127 */ | |
| 4128 mutex_enter(&spa_namespace_lock); | |
| 4129 while ((spa = spa_next(NULL)) != NULL) { | |
| 4130 /* | |
| 1544 | 4131 * Stop async tasks. The async thread may need to detach |
| 4132 * a device that's been replaced, which requires grabbing | |
| 4133 * spa_namespace_lock, so we must drop it here. | |
| 789 | 4134 */ |
| 4135 spa_open_ref(spa, FTAG); | |
| 4136 mutex_exit(&spa_namespace_lock); | |
| 1544 | 4137 spa_async_suspend(spa); |
| 4808 | 4138 mutex_enter(&spa_namespace_lock); |
| 789 | 4139 spa_close(spa, FTAG); |
| 4140 | |
| 4141 if (spa->spa_state != POOL_STATE_UNINITIALIZED) { | |
| 4142 spa_unload(spa); | |
| 4143 spa_deactivate(spa); | |
| 4144 } | |
| 4145 spa_remove(spa); | |
| 4146 } | |
| 4147 mutex_exit(&spa_namespace_lock); | |
| 4148 } | |
| 1544 | 4149 |
| 4150 vdev_t * | |
|
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|
4151 spa_lookup_by_guid(spa_t *spa, uint64_t guid, boolean_t l2cache) |
| 1544 | 4152 { |
|
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|
4153 vdev_t *vd; |
|
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|
4154 int i; |
|
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|
4155 |
|
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|
4156 if ((vd = vdev_lookup_by_guid(spa->spa_root_vdev, guid)) != NULL) |
|
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changeset
|
4157 return (vd); |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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6615
diff
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|
4158 |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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6615
diff
changeset
|
4159 if (l2cache) { |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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diff
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|
4160 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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diff
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|
4161 vd = spa->spa_l2cache.sav_vdevs[i]; |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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diff
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|
4162 if (vd->vdev_guid == guid) |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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diff
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|
4163 return (vd); |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
changeset
|
4164 } |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
changeset
|
4165 } |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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diff
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|
4166 |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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diff
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|
4167 return (NULL); |
| 1544 | 4168 } |
| 1760 | 4169 |
| 4170 void | |
| 5094 | 4171 spa_upgrade(spa_t *spa, uint64_t version) |
| 1760 | 4172 { |
| 4173 spa_config_enter(spa, RW_WRITER, FTAG); | |
| 4174 | |
| 4175 /* | |
| 4176 * This should only be called for a non-faulted pool, and since a | |
| 4177 * future version would result in an unopenable pool, this shouldn't be | |
| 4178 * possible. | |
| 4179 */ | |
| 4577 | 4180 ASSERT(spa->spa_uberblock.ub_version <= SPA_VERSION); |
| 5094 | 4181 ASSERT(version >= spa->spa_uberblock.ub_version); |
| 4182 | |
| 4183 spa->spa_uberblock.ub_version = version; | |
| 1760 | 4184 vdev_config_dirty(spa->spa_root_vdev); |
| 4185 | |
| 4186 spa_config_exit(spa, FTAG); | |
| 2082 | 4187 |
| 4188 txg_wait_synced(spa_get_dsl(spa), 0); | |
| 1760 | 4189 } |
| 2082 | 4190 |
| 4191 boolean_t | |
| 4192 spa_has_spare(spa_t *spa, uint64_t guid) | |
| 4193 { | |
| 4194 int i; | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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diff
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|
4195 uint64_t spareguid; |
| 5450 | 4196 spa_aux_vdev_t *sav = &spa->spa_spares; |
| 4197 | |
| 4198 for (i = 0; i < sav->sav_count; i++) | |
| 4199 if (sav->sav_vdevs[i]->vdev_guid == guid) | |
| 2082 | 4200 return (B_TRUE); |
| 4201 | |
| 5450 | 4202 for (i = 0; i < sav->sav_npending; i++) { |
| 4203 if (nvlist_lookup_uint64(sav->sav_pending[i], ZPOOL_CONFIG_GUID, | |
| 4204 &spareguid) == 0 && spareguid == guid) | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
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diff
changeset
|
4205 return (B_TRUE); |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
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3290
diff
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|
4206 } |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
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diff
changeset
|
4207 |
| 2082 | 4208 return (B_FALSE); |
| 4209 } | |
| 3912 | 4210 |
| 4451 | 4211 /* |
|
7214
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
parents:
7184
diff
changeset
|
4212 * 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.
lling
parents:
7184
diff
changeset
|
4213 * 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.
lling
parents:
7184
diff
changeset
|
4214 */ |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
parents:
7184
diff
changeset
|
4215 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
parents:
7184
diff
changeset
|
4216 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.
lling
parents:
7184
diff
changeset
|
4217 { |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
parents:
7184
diff
changeset
|
4218 int i, refcnt; |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
parents:
7184
diff
changeset
|
4219 uint64_t pool; |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
parents:
7184
diff
changeset
|
4220 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.
lling
parents:
7184
diff
changeset
|
4221 |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
parents:
7184
diff
changeset
|
4222 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.
lling
parents:
7184
diff
changeset
|
4223 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.
lling
parents:
7184
diff
changeset
|
4224 &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.
lling
parents:
7184
diff
changeset
|
4225 refcnt > 2) |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
parents:
7184
diff
changeset
|
4226 return (B_TRUE); |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
parents:
7184
diff
changeset
|
4227 } |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
parents:
7184
diff
changeset
|
4228 |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
parents:
7184
diff
changeset
|
4229 return (B_FALSE); |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
parents:
7184
diff
changeset
|
4230 } |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
parents:
7184
diff
changeset
|
4231 |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
parents:
7184
diff
changeset
|
4232 /* |
| 4451 | 4233 * Post a sysevent corresponding to the given event. The 'name' must be one of |
| 4234 * the event definitions in sys/sysevent/eventdefs.h. The payload will be | |
| 4235 * filled in from the spa and (optionally) the vdev. This doesn't do anything | |
| 4236 * in the userland libzpool, as we don't want consumers to misinterpret ztest | |
| 4237 * or zdb as real changes. | |
| 4238 */ | |
| 4239 void | |
| 4240 spa_event_notify(spa_t *spa, vdev_t *vd, const char *name) | |
| 4241 { | |
| 4242 #ifdef _KERNEL | |
| 4243 sysevent_t *ev; | |
| 4244 sysevent_attr_list_t *attr = NULL; | |
| 4245 sysevent_value_t value; | |
| 4246 sysevent_id_t eid; | |
| 4247 | |
| 4248 ev = sysevent_alloc(EC_ZFS, (char *)name, SUNW_KERN_PUB "zfs", | |
| 4249 SE_SLEEP); | |
| 4250 | |
| 4251 value.value_type = SE_DATA_TYPE_STRING; | |
| 4252 value.value.sv_string = spa_name(spa); | |
| 4253 if (sysevent_add_attr(&attr, ZFS_EV_POOL_NAME, &value, SE_SLEEP) != 0) | |
| 4254 goto done; | |
| 4255 | |
| 4256 value.value_type = SE_DATA_TYPE_UINT64; | |
| 4257 value.value.sv_uint64 = spa_guid(spa); | |
| 4258 if (sysevent_add_attr(&attr, ZFS_EV_POOL_GUID, &value, SE_SLEEP) != 0) | |
| 4259 goto done; | |
| 4260 | |
| 4261 if (vd) { | |
| 4262 value.value_type = SE_DATA_TYPE_UINT64; | |
| 4263 value.value.sv_uint64 = vd->vdev_guid; | |
| 4264 if (sysevent_add_attr(&attr, ZFS_EV_VDEV_GUID, &value, | |
| 4265 SE_SLEEP) != 0) | |
| 4266 goto done; | |
| 4267 | |
| 4268 if (vd->vdev_path) { | |
| 4269 value.value_type = SE_DATA_TYPE_STRING; | |
| 4270 value.value.sv_string = vd->vdev_path; | |
| 4271 if (sysevent_add_attr(&attr, ZFS_EV_VDEV_PATH, | |
| 4272 &value, SE_SLEEP) != 0) | |
| 4273 goto done; | |
| 4274 } | |
| 4275 } | |
| 4276 | |
|
5756
05eb4c1ff492
6585441 spa_event_notify() doesn't pass its attributes
eschrock
parents:
5688
diff
changeset
|
4277 if (sysevent_attach_attributes(ev, attr) != 0) |
|
05eb4c1ff492
6585441 spa_event_notify() doesn't pass its attributes
eschrock
parents:
5688
diff
changeset
|
4278 goto done; |
|
05eb4c1ff492
6585441 spa_event_notify() doesn't pass its attributes
eschrock
parents:
5688
diff
changeset
|
4279 attr = NULL; |
|
05eb4c1ff492
6585441 spa_event_notify() doesn't pass its attributes
eschrock
parents:
5688
diff
changeset
|
4280 |
| 4451 | 4281 (void) log_sysevent(ev, SE_SLEEP, &eid); |
| 4282 | |
| 4283 done: | |
| 4284 if (attr) | |
| 4285 sysevent_free_attr(attr); | |
| 4286 sysevent_free(ev); | |
| 4287 #endif | |
| 4288 } |