Mercurial > illumos > illumos-gate
annotate usr/src/uts/common/fs/zfs/spa.c @ 8211:32722be6ad3b
6775357 ZFS should have a way to export a pool without touching anything
| author | George Wilson <George.Wilson@Sun.COM> |
|---|---|
| date | Mon, 24 Nov 2008 16:10:21 -0800 |
| parents | e520d8258820 |
| children | 5a60f16123ba |
| 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 |
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66 int zio_taskq_threads[ZIO_TYPES][ZIO_TASKQ_TYPES] = { |
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67 /* ISSUE INTR */ |
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68 { 1, 1 }, /* ZIO_TYPE_NULL */ |
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69 { 1, 8 }, /* ZIO_TYPE_READ */ |
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70 { 8, 1 }, /* ZIO_TYPE_WRITE */ |
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71 { 1, 1 }, /* ZIO_TYPE_FREE */ |
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72 { 1, 1 }, /* ZIO_TYPE_CLAIM */ |
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73 { 1, 1 }, /* ZIO_TYPE_IOCTL */ |
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74 }; |
| 2986 | 75 |
| 5094 | 76 static void spa_sync_props(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx); |
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77 static boolean_t spa_has_active_shared_spare(spa_t *spa); |
| 5094 | 78 |
| 79 /* | |
| 80 * ========================================================================== | |
| 81 * SPA properties routines | |
| 82 * ========================================================================== | |
| 83 */ | |
| 84 | |
| 85 /* | |
| 86 * Add a (source=src, propname=propval) list to an nvlist. | |
| 87 */ | |
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88 static void |
| 5094 | 89 spa_prop_add_list(nvlist_t *nvl, zpool_prop_t prop, char *strval, |
| 90 uint64_t intval, zprop_source_t src) | |
| 91 { | |
| 92 const char *propname = zpool_prop_to_name(prop); | |
| 93 nvlist_t *propval; | |
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94 |
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95 VERIFY(nvlist_alloc(&propval, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
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96 VERIFY(nvlist_add_uint64(propval, ZPROP_SOURCE, src) == 0); |
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97 |
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98 if (strval != NULL) |
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99 VERIFY(nvlist_add_string(propval, ZPROP_VALUE, strval) == 0); |
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100 else |
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101 VERIFY(nvlist_add_uint64(propval, ZPROP_VALUE, intval) == 0); |
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102 |
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103 VERIFY(nvlist_add_nvlist(nvl, propname, propval) == 0); |
| 5094 | 104 nvlist_free(propval); |
| 105 } | |
| 106 | |
| 107 /* | |
| 108 * Get property values from the spa configuration. | |
| 109 */ | |
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110 static void |
| 5094 | 111 spa_prop_get_config(spa_t *spa, nvlist_t **nvp) |
| 112 { | |
| 113 uint64_t size = spa_get_space(spa); | |
| 114 uint64_t used = spa_get_alloc(spa); | |
| 115 uint64_t cap, version; | |
| 116 zprop_source_t src = ZPROP_SRC_NONE; | |
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117 spa_config_dirent_t *dp; |
| 5094 | 118 |
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119 ASSERT(MUTEX_HELD(&spa->spa_props_lock)); |
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120 |
| 5094 | 121 /* |
| 122 * readonly properties | |
| 123 */ | |
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124 spa_prop_add_list(*nvp, ZPOOL_PROP_NAME, spa_name(spa), 0, src); |
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125 spa_prop_add_list(*nvp, ZPOOL_PROP_SIZE, NULL, size, src); |
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126 spa_prop_add_list(*nvp, ZPOOL_PROP_USED, NULL, used, src); |
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127 spa_prop_add_list(*nvp, ZPOOL_PROP_AVAILABLE, NULL, size - used, src); |
| 5094 | 128 |
| 129 cap = (size == 0) ? 0 : (used * 100 / size); | |
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130 spa_prop_add_list(*nvp, ZPOOL_PROP_CAPACITY, NULL, cap, src); |
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131 |
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132 spa_prop_add_list(*nvp, ZPOOL_PROP_GUID, NULL, spa_guid(spa), src); |
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133 spa_prop_add_list(*nvp, ZPOOL_PROP_HEALTH, NULL, |
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134 spa->spa_root_vdev->vdev_state, src); |
| 5094 | 135 |
| 136 /* | |
| 137 * settable properties that are not stored in the pool property object. | |
| 138 */ | |
| 139 version = spa_version(spa); | |
| 140 if (version == zpool_prop_default_numeric(ZPOOL_PROP_VERSION)) | |
| 141 src = ZPROP_SRC_DEFAULT; | |
| 142 else | |
| 143 src = ZPROP_SRC_LOCAL; | |
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144 spa_prop_add_list(*nvp, ZPOOL_PROP_VERSION, NULL, version, src); |
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145 |
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146 if (spa->spa_root != NULL) |
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147 spa_prop_add_list(*nvp, ZPOOL_PROP_ALTROOT, spa->spa_root, |
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148 0, ZPROP_SRC_LOCAL); |
| 5094 | 149 |
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150 if ((dp = list_head(&spa->spa_config_list)) != NULL) { |
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151 if (dp->scd_path == NULL) { |
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152 spa_prop_add_list(*nvp, ZPOOL_PROP_CACHEFILE, |
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153 "none", 0, ZPROP_SRC_LOCAL); |
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154 } else if (strcmp(dp->scd_path, spa_config_path) != 0) { |
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155 spa_prop_add_list(*nvp, ZPOOL_PROP_CACHEFILE, |
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156 dp->scd_path, 0, ZPROP_SRC_LOCAL); |
| 5363 | 157 } |
| 158 } | |
| 5094 | 159 } |
| 160 | |
| 161 /* | |
| 162 * Get zpool property values. | |
| 163 */ | |
| 164 int | |
| 165 spa_prop_get(spa_t *spa, nvlist_t **nvp) | |
| 166 { | |
| 167 zap_cursor_t zc; | |
| 168 zap_attribute_t za; | |
| 169 objset_t *mos = spa->spa_meta_objset; | |
| 170 int err; | |
| 171 | |
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172 VERIFY(nvlist_alloc(nvp, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
| 5094 | 173 |
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174 mutex_enter(&spa->spa_props_lock); |
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175 |
| 5094 | 176 /* |
| 177 * Get properties from the spa config. | |
| 178 */ | |
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179 spa_prop_get_config(spa, nvp); |
| 5094 | 180 |
| 181 /* If no pool property object, no more prop to get. */ | |
| 182 if (spa->spa_pool_props_object == 0) { | |
| 183 mutex_exit(&spa->spa_props_lock); | |
| 184 return (0); | |
| 185 } | |
| 186 | |
| 187 /* | |
| 188 * Get properties from the MOS pool property object. | |
| 189 */ | |
| 190 for (zap_cursor_init(&zc, mos, spa->spa_pool_props_object); | |
| 191 (err = zap_cursor_retrieve(&zc, &za)) == 0; | |
| 192 zap_cursor_advance(&zc)) { | |
| 193 uint64_t intval = 0; | |
| 194 char *strval = NULL; | |
| 195 zprop_source_t src = ZPROP_SRC_DEFAULT; | |
| 196 zpool_prop_t prop; | |
| 197 | |
| 198 if ((prop = zpool_name_to_prop(za.za_name)) == ZPROP_INVAL) | |
| 199 continue; | |
| 200 | |
| 201 switch (za.za_integer_length) { | |
| 202 case 8: | |
| 203 /* integer property */ | |
| 204 if (za.za_first_integer != | |
| 205 zpool_prop_default_numeric(prop)) | |
| 206 src = ZPROP_SRC_LOCAL; | |
| 207 | |
| 208 if (prop == ZPOOL_PROP_BOOTFS) { | |
| 209 dsl_pool_t *dp; | |
| 210 dsl_dataset_t *ds = NULL; | |
| 211 | |
| 212 dp = spa_get_dsl(spa); | |
| 213 rw_enter(&dp->dp_config_rwlock, RW_READER); | |
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214 if (err = dsl_dataset_hold_obj(dp, |
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215 za.za_first_integer, FTAG, &ds)) { |
| 5094 | 216 rw_exit(&dp->dp_config_rwlock); |
| 217 break; | |
| 218 } | |
| 219 | |
| 220 strval = kmem_alloc( | |
| 221 MAXNAMELEN + strlen(MOS_DIR_NAME) + 1, | |
| 222 KM_SLEEP); | |
| 223 dsl_dataset_name(ds, strval); | |
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224 dsl_dataset_rele(ds, FTAG); |
| 5094 | 225 rw_exit(&dp->dp_config_rwlock); |
| 226 } else { | |
| 227 strval = NULL; | |
| 228 intval = za.za_first_integer; | |
| 229 } | |
| 230 | |
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231 spa_prop_add_list(*nvp, prop, strval, intval, src); |
| 5094 | 232 |
| 233 if (strval != NULL) | |
| 234 kmem_free(strval, | |
| 235 MAXNAMELEN + strlen(MOS_DIR_NAME) + 1); | |
| 236 | |
| 237 break; | |
| 238 | |
| 239 case 1: | |
| 240 /* string property */ | |
| 241 strval = kmem_alloc(za.za_num_integers, KM_SLEEP); | |
| 242 err = zap_lookup(mos, spa->spa_pool_props_object, | |
| 243 za.za_name, 1, za.za_num_integers, strval); | |
| 244 if (err) { | |
| 245 kmem_free(strval, za.za_num_integers); | |
| 246 break; | |
| 247 } | |
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248 spa_prop_add_list(*nvp, prop, strval, 0, src); |
| 5094 | 249 kmem_free(strval, za.za_num_integers); |
| 250 break; | |
| 251 | |
| 252 default: | |
| 253 break; | |
| 254 } | |
| 255 } | |
| 256 zap_cursor_fini(&zc); | |
| 257 mutex_exit(&spa->spa_props_lock); | |
| 258 out: | |
| 259 if (err && err != ENOENT) { | |
| 260 nvlist_free(*nvp); | |
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261 *nvp = NULL; |
| 5094 | 262 return (err); |
| 263 } | |
| 264 | |
| 265 return (0); | |
| 266 } | |
| 267 | |
| 268 /* | |
| 269 * Validate the given pool properties nvlist and modify the list | |
| 270 * for the property values to be set. | |
| 271 */ | |
| 272 static int | |
| 273 spa_prop_validate(spa_t *spa, nvlist_t *props) | |
| 274 { | |
| 275 nvpair_t *elem; | |
| 276 int error = 0, reset_bootfs = 0; | |
| 277 uint64_t objnum; | |
| 278 | |
| 279 elem = NULL; | |
| 280 while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { | |
| 281 zpool_prop_t prop; | |
| 282 char *propname, *strval; | |
| 283 uint64_t intval; | |
| 284 objset_t *os; | |
| 5363 | 285 char *slash; |
| 5094 | 286 |
| 287 propname = nvpair_name(elem); | |
| 288 | |
| 289 if ((prop = zpool_name_to_prop(propname)) == ZPROP_INVAL) | |
| 290 return (EINVAL); | |
| 291 | |
| 292 switch (prop) { | |
| 293 case ZPOOL_PROP_VERSION: | |
| 294 error = nvpair_value_uint64(elem, &intval); | |
| 295 if (!error && | |
| 296 (intval < spa_version(spa) || intval > SPA_VERSION)) | |
| 297 error = EINVAL; | |
| 298 break; | |
| 299 | |
| 300 case ZPOOL_PROP_DELEGATION: | |
| 301 case ZPOOL_PROP_AUTOREPLACE: | |
|
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302 case ZPOOL_PROP_LISTSNAPS: |
| 5094 | 303 error = nvpair_value_uint64(elem, &intval); |
| 304 if (!error && intval > 1) | |
| 305 error = EINVAL; | |
| 306 break; | |
| 307 | |
| 308 case ZPOOL_PROP_BOOTFS: | |
| 309 if (spa_version(spa) < SPA_VERSION_BOOTFS) { | |
| 310 error = ENOTSUP; | |
| 311 break; | |
| 312 } | |
| 313 | |
| 314 /* | |
|
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315 * Make sure the vdev config is bootable |
| 5094 | 316 */ |
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317 if (!vdev_is_bootable(spa->spa_root_vdev)) { |
| 5094 | 318 error = ENOTSUP; |
| 319 break; | |
| 320 } | |
| 321 | |
| 322 reset_bootfs = 1; | |
| 323 | |
| 324 error = nvpair_value_string(elem, &strval); | |
| 325 | |
| 326 if (!error) { | |
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327 uint64_t compress; |
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328 |
| 5094 | 329 if (strval == NULL || strval[0] == '\0') { |
| 330 objnum = zpool_prop_default_numeric( | |
| 331 ZPOOL_PROP_BOOTFS); | |
| 332 break; | |
| 333 } | |
| 334 | |
| 335 if (error = dmu_objset_open(strval, DMU_OST_ZFS, | |
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336 DS_MODE_USER | DS_MODE_READONLY, &os)) |
| 5094 | 337 break; |
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338 |
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339 /* We don't support gzip bootable datasets */ |
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340 if ((error = dsl_prop_get_integer(strval, |
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341 zfs_prop_to_name(ZFS_PROP_COMPRESSION), |
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342 &compress, NULL)) == 0 && |
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343 !BOOTFS_COMPRESS_VALID(compress)) { |
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344 error = ENOTSUP; |
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345 } else { |
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346 objnum = dmu_objset_id(os); |
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347 } |
| 5094 | 348 dmu_objset_close(os); |
| 349 } | |
| 350 break; | |
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351 |
| 5329 | 352 case ZPOOL_PROP_FAILUREMODE: |
| 353 error = nvpair_value_uint64(elem, &intval); | |
| 354 if (!error && (intval < ZIO_FAILURE_MODE_WAIT || | |
| 355 intval > ZIO_FAILURE_MODE_PANIC)) | |
| 356 error = EINVAL; | |
| 357 | |
| 358 /* | |
| 359 * This is a special case which only occurs when | |
| 360 * the pool has completely failed. This allows | |
| 361 * the user to change the in-core failmode property | |
| 362 * without syncing it out to disk (I/Os might | |
| 363 * currently be blocked). We do this by returning | |
| 364 * EIO to the caller (spa_prop_set) to trick it | |
| 365 * into thinking we encountered a property validation | |
| 366 * error. | |
| 367 */ | |
|
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368 if (!error && spa_suspended(spa)) { |
| 5329 | 369 spa->spa_failmode = intval; |
| 370 error = EIO; | |
| 371 } | |
| 372 break; | |
| 5363 | 373 |
| 374 case ZPOOL_PROP_CACHEFILE: | |
| 375 if ((error = nvpair_value_string(elem, &strval)) != 0) | |
| 376 break; | |
| 377 | |
| 378 if (strval[0] == '\0') | |
| 379 break; | |
| 380 | |
| 381 if (strcmp(strval, "none") == 0) | |
| 382 break; | |
| 383 | |
| 384 if (strval[0] != '/') { | |
| 385 error = EINVAL; | |
| 386 break; | |
| 387 } | |
| 388 | |
| 389 slash = strrchr(strval, '/'); | |
| 390 ASSERT(slash != NULL); | |
| 391 | |
| 392 if (slash[1] == '\0' || strcmp(slash, "/.") == 0 || | |
| 393 strcmp(slash, "/..") == 0) | |
| 394 error = EINVAL; | |
| 395 break; | |
| 5094 | 396 } |
| 397 | |
| 398 if (error) | |
| 399 break; | |
| 400 } | |
| 401 | |
| 402 if (!error && reset_bootfs) { | |
| 403 error = nvlist_remove(props, | |
| 404 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), DATA_TYPE_STRING); | |
| 405 | |
| 406 if (!error) { | |
| 407 error = nvlist_add_uint64(props, | |
| 408 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), objnum); | |
| 409 } | |
| 410 } | |
| 411 | |
| 412 return (error); | |
| 413 } | |
| 414 | |
| 415 int | |
| 416 spa_prop_set(spa_t *spa, nvlist_t *nvp) | |
| 417 { | |
| 418 int error; | |
| 419 | |
| 420 if ((error = spa_prop_validate(spa, nvp)) != 0) | |
| 421 return (error); | |
| 422 | |
| 423 return (dsl_sync_task_do(spa_get_dsl(spa), NULL, spa_sync_props, | |
| 424 spa, nvp, 3)); | |
| 425 } | |
| 426 | |
| 427 /* | |
| 428 * If the bootfs property value is dsobj, clear it. | |
| 429 */ | |
| 430 void | |
| 431 spa_prop_clear_bootfs(spa_t *spa, uint64_t dsobj, dmu_tx_t *tx) | |
| 432 { | |
| 433 if (spa->spa_bootfs == dsobj && spa->spa_pool_props_object != 0) { | |
| 434 VERIFY(zap_remove(spa->spa_meta_objset, | |
| 435 spa->spa_pool_props_object, | |
| 436 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), tx) == 0); | |
| 437 spa->spa_bootfs = 0; | |
| 438 } | |
| 439 } | |
| 440 | |
| 789 | 441 /* |
| 442 * ========================================================================== | |
| 443 * SPA state manipulation (open/create/destroy/import/export) | |
| 444 * ========================================================================== | |
| 445 */ | |
| 446 | |
| 1544 | 447 static int |
| 448 spa_error_entry_compare(const void *a, const void *b) | |
| 449 { | |
| 450 spa_error_entry_t *sa = (spa_error_entry_t *)a; | |
| 451 spa_error_entry_t *sb = (spa_error_entry_t *)b; | |
| 452 int ret; | |
| 453 | |
| 454 ret = bcmp(&sa->se_bookmark, &sb->se_bookmark, | |
| 455 sizeof (zbookmark_t)); | |
| 456 | |
| 457 if (ret < 0) | |
| 458 return (-1); | |
| 459 else if (ret > 0) | |
| 460 return (1); | |
| 461 else | |
| 462 return (0); | |
| 463 } | |
| 464 | |
| 465 /* | |
| 466 * Utility function which retrieves copies of the current logs and | |
| 467 * re-initializes them in the process. | |
| 468 */ | |
| 469 void | |
| 470 spa_get_errlists(spa_t *spa, avl_tree_t *last, avl_tree_t *scrub) | |
| 471 { | |
| 472 ASSERT(MUTEX_HELD(&spa->spa_errlist_lock)); | |
| 473 | |
| 474 bcopy(&spa->spa_errlist_last, last, sizeof (avl_tree_t)); | |
| 475 bcopy(&spa->spa_errlist_scrub, scrub, sizeof (avl_tree_t)); | |
| 476 | |
| 477 avl_create(&spa->spa_errlist_scrub, | |
| 478 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
| 479 offsetof(spa_error_entry_t, se_avl)); | |
| 480 avl_create(&spa->spa_errlist_last, | |
| 481 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
| 482 offsetof(spa_error_entry_t, se_avl)); | |
| 483 } | |
| 484 | |
| 789 | 485 /* |
| 486 * Activate an uninitialized pool. | |
| 487 */ | |
| 488 static void | |
| 489 spa_activate(spa_t *spa) | |
| 490 { | |
| 491 ASSERT(spa->spa_state == POOL_STATE_UNINITIALIZED); | |
| 492 | |
| 493 spa->spa_state = POOL_STATE_ACTIVE; | |
| 494 | |
| 495 spa->spa_normal_class = metaslab_class_create(); | |
| 4527 | 496 spa->spa_log_class = metaslab_class_create(); |
| 789 | 497 |
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498 for (int t = 0; t < ZIO_TYPES; t++) { |
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499 for (int q = 0; q < ZIO_TASKQ_TYPES; q++) { |
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500 spa->spa_zio_taskq[t][q] = taskq_create("spa_zio", |
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501 zio_taskq_threads[t][q], maxclsyspri, 50, |
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502 INT_MAX, TASKQ_PREPOPULATE); |
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503 } |
| 789 | 504 } |
| 505 | |
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506 list_create(&spa->spa_config_dirty_list, sizeof (vdev_t), |
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507 offsetof(vdev_t, vdev_config_dirty_node)); |
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508 list_create(&spa->spa_state_dirty_list, sizeof (vdev_t), |
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509 offsetof(vdev_t, vdev_state_dirty_node)); |
| 789 | 510 |
| 511 txg_list_create(&spa->spa_vdev_txg_list, | |
| 512 offsetof(struct vdev, vdev_txg_node)); | |
| 1544 | 513 |
| 514 avl_create(&spa->spa_errlist_scrub, | |
| 515 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
| 516 offsetof(spa_error_entry_t, se_avl)); | |
| 517 avl_create(&spa->spa_errlist_last, | |
| 518 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
| 519 offsetof(spa_error_entry_t, se_avl)); | |
| 789 | 520 } |
| 521 | |
| 522 /* | |
| 523 * Opposite of spa_activate(). | |
| 524 */ | |
| 525 static void | |
| 526 spa_deactivate(spa_t *spa) | |
| 527 { | |
| 528 ASSERT(spa->spa_sync_on == B_FALSE); | |
| 529 ASSERT(spa->spa_dsl_pool == NULL); | |
| 530 ASSERT(spa->spa_root_vdev == NULL); | |
| 531 | |
| 532 ASSERT(spa->spa_state != POOL_STATE_UNINITIALIZED); | |
| 533 | |
| 534 txg_list_destroy(&spa->spa_vdev_txg_list); | |
| 535 | |
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536 list_destroy(&spa->spa_config_dirty_list); |
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537 list_destroy(&spa->spa_state_dirty_list); |
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538 |
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539 for (int t = 0; t < ZIO_TYPES; t++) { |
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540 for (int q = 0; q < ZIO_TASKQ_TYPES; q++) { |
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541 taskq_destroy(spa->spa_zio_taskq[t][q]); |
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542 spa->spa_zio_taskq[t][q] = NULL; |
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543 } |
| 789 | 544 } |
| 545 | |
| 546 metaslab_class_destroy(spa->spa_normal_class); | |
| 547 spa->spa_normal_class = NULL; | |
| 548 | |
| 4527 | 549 metaslab_class_destroy(spa->spa_log_class); |
| 550 spa->spa_log_class = NULL; | |
| 551 | |
| 1544 | 552 /* |
| 553 * If this was part of an import or the open otherwise failed, we may | |
| 554 * still have errors left in the queues. Empty them just in case. | |
| 555 */ | |
| 556 spa_errlog_drain(spa); | |
| 557 | |
| 558 avl_destroy(&spa->spa_errlist_scrub); | |
| 559 avl_destroy(&spa->spa_errlist_last); | |
| 560 | |
| 789 | 561 spa->spa_state = POOL_STATE_UNINITIALIZED; |
| 562 } | |
| 563 | |
| 564 /* | |
| 565 * Verify a pool configuration, and construct the vdev tree appropriately. This | |
| 566 * will create all the necessary vdevs in the appropriate layout, with each vdev | |
| 567 * in the CLOSED state. This will prep the pool before open/creation/import. | |
| 568 * All vdev validation is done by the vdev_alloc() routine. | |
| 569 */ | |
| 2082 | 570 static int |
| 571 spa_config_parse(spa_t *spa, vdev_t **vdp, nvlist_t *nv, vdev_t *parent, | |
| 572 uint_t id, int atype) | |
| 789 | 573 { |
| 574 nvlist_t **child; | |
| 575 uint_t c, children; | |
| 2082 | 576 int error; |
| 577 | |
| 578 if ((error = vdev_alloc(spa, vdp, nv, parent, id, atype)) != 0) | |
| 579 return (error); | |
| 580 | |
| 581 if ((*vdp)->vdev_ops->vdev_op_leaf) | |
| 582 return (0); | |
| 789 | 583 |
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584 error = nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, |
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585 &child, &children); |
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586 |
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587 if (error == ENOENT) |
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588 return (0); |
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589 |
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590 if (error) { |
| 2082 | 591 vdev_free(*vdp); |
| 592 *vdp = NULL; | |
| 593 return (EINVAL); | |
| 789 | 594 } |
| 595 | |
| 596 for (c = 0; c < children; c++) { | |
| 2082 | 597 vdev_t *vd; |
| 598 if ((error = spa_config_parse(spa, &vd, child[c], *vdp, c, | |
| 599 atype)) != 0) { | |
| 600 vdev_free(*vdp); | |
| 601 *vdp = NULL; | |
| 602 return (error); | |
| 789 | 603 } |
| 604 } | |
| 605 | |
| 2082 | 606 ASSERT(*vdp != NULL); |
| 607 | |
| 608 return (0); | |
| 789 | 609 } |
| 610 | |
| 611 /* | |
| 612 * Opposite of spa_load(). | |
| 613 */ | |
| 614 static void | |
| 615 spa_unload(spa_t *spa) | |
| 616 { | |
| 2082 | 617 int i; |
| 618 | |
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619 ASSERT(MUTEX_HELD(&spa_namespace_lock)); |
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620 |
| 789 | 621 /* |
| 1544 | 622 * Stop async tasks. |
| 623 */ | |
| 624 spa_async_suspend(spa); | |
| 625 | |
| 626 /* | |
| 789 | 627 * Stop syncing. |
| 628 */ | |
| 629 if (spa->spa_sync_on) { | |
| 630 txg_sync_stop(spa->spa_dsl_pool); | |
| 631 spa->spa_sync_on = B_FALSE; | |
| 632 } | |
| 633 | |
| 634 /* | |
|
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635 * Wait for any outstanding async I/O to complete. |
| 789 | 636 */ |
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637 mutex_enter(&spa->spa_async_root_lock); |
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638 while (spa->spa_async_root_count != 0) |
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639 cv_wait(&spa->spa_async_root_cv, &spa->spa_async_root_lock); |
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640 mutex_exit(&spa->spa_async_root_lock); |
| 789 | 641 |
| 642 /* | |
| 5450 | 643 * Drop and purge level 2 cache |
| 644 */ | |
| 645 spa_l2cache_drop(spa); | |
| 646 | |
| 647 /* | |
| 789 | 648 * Close the dsl pool. |
| 649 */ | |
| 650 if (spa->spa_dsl_pool) { | |
| 651 dsl_pool_close(spa->spa_dsl_pool); | |
| 652 spa->spa_dsl_pool = NULL; | |
| 653 } | |
| 654 | |
| 655 /* | |
| 656 * Close all vdevs. | |
| 657 */ | |
|
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658 if (spa->spa_root_vdev) |
| 789 | 659 vdev_free(spa->spa_root_vdev); |
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660 ASSERT(spa->spa_root_vdev == NULL); |
| 1544 | 661 |
| 5450 | 662 for (i = 0; i < spa->spa_spares.sav_count; i++) |
| 663 vdev_free(spa->spa_spares.sav_vdevs[i]); | |
| 664 if (spa->spa_spares.sav_vdevs) { | |
| 665 kmem_free(spa->spa_spares.sav_vdevs, | |
| 666 spa->spa_spares.sav_count * sizeof (void *)); | |
| 667 spa->spa_spares.sav_vdevs = NULL; | |
| 668 } | |
| 669 if (spa->spa_spares.sav_config) { | |
| 670 nvlist_free(spa->spa_spares.sav_config); | |
| 671 spa->spa_spares.sav_config = NULL; | |
| 2082 | 672 } |
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673 spa->spa_spares.sav_count = 0; |
| 5450 | 674 |
| 675 for (i = 0; i < spa->spa_l2cache.sav_count; i++) | |
| 676 vdev_free(spa->spa_l2cache.sav_vdevs[i]); | |
| 677 if (spa->spa_l2cache.sav_vdevs) { | |
| 678 kmem_free(spa->spa_l2cache.sav_vdevs, | |
| 679 spa->spa_l2cache.sav_count * sizeof (void *)); | |
| 680 spa->spa_l2cache.sav_vdevs = NULL; | |
| 681 } | |
| 682 if (spa->spa_l2cache.sav_config) { | |
| 683 nvlist_free(spa->spa_l2cache.sav_config); | |
| 684 spa->spa_l2cache.sav_config = NULL; | |
| 2082 | 685 } |
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686 spa->spa_l2cache.sav_count = 0; |
| 2082 | 687 |
| 1544 | 688 spa->spa_async_suspended = 0; |
| 789 | 689 } |
| 690 | |
| 691 /* | |
| 2082 | 692 * Load (or re-load) the current list of vdevs describing the active spares for |
| 693 * this pool. When this is called, we have some form of basic information in | |
| 5450 | 694 * 'spa_spares.sav_config'. We parse this into vdevs, try to open them, and |
| 695 * then re-generate a more complete list including status information. | |
| 2082 | 696 */ |
| 697 static void | |
| 698 spa_load_spares(spa_t *spa) | |
| 699 { | |
| 700 nvlist_t **spares; | |
| 701 uint_t nspares; | |
| 702 int i; | |
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703 vdev_t *vd, *tvd; |
| 2082 | 704 |
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705 ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL); |
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706 |
| 2082 | 707 /* |
| 708 * First, close and free any existing spare vdevs. | |
| 709 */ | |
| 5450 | 710 for (i = 0; i < spa->spa_spares.sav_count; i++) { |
| 711 vd = spa->spa_spares.sav_vdevs[i]; | |
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712 |
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713 /* Undo the call to spa_activate() below */ |
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714 if ((tvd = spa_lookup_by_guid(spa, vd->vdev_guid, |
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715 B_FALSE)) != NULL && tvd->vdev_isspare) |
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716 spa_spare_remove(tvd); |
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717 vdev_close(vd); |
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718 vdev_free(vd); |
| 2082 | 719 } |
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720 |
| 5450 | 721 if (spa->spa_spares.sav_vdevs) |
| 722 kmem_free(spa->spa_spares.sav_vdevs, | |
| 723 spa->spa_spares.sav_count * sizeof (void *)); | |
| 724 | |
| 725 if (spa->spa_spares.sav_config == NULL) | |
| 2082 | 726 nspares = 0; |
| 727 else | |
| 5450 | 728 VERIFY(nvlist_lookup_nvlist_array(spa->spa_spares.sav_config, |
| 2082 | 729 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); |
| 730 | |
| 5450 | 731 spa->spa_spares.sav_count = (int)nspares; |
| 732 spa->spa_spares.sav_vdevs = NULL; | |
| 2082 | 733 |
| 734 if (nspares == 0) | |
| 735 return; | |
| 736 | |
| 737 /* | |
| 738 * Construct the array of vdevs, opening them to get status in the | |
|
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739 * process. For each spare, there is potentially two different vdev_t |
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740 * structures associated with it: one in the list of spares (used only |
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741 * for basic validation purposes) and one in the active vdev |
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742 * configuration (if it's spared in). During this phase we open and |
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743 * validate each vdev on the spare list. If the vdev also exists in the |
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744 * active configuration, then we also mark this vdev as an active spare. |
| 2082 | 745 */ |
| 5450 | 746 spa->spa_spares.sav_vdevs = kmem_alloc(nspares * sizeof (void *), |
| 747 KM_SLEEP); | |
| 748 for (i = 0; i < spa->spa_spares.sav_count; i++) { | |
| 2082 | 749 VERIFY(spa_config_parse(spa, &vd, spares[i], NULL, 0, |
| 750 VDEV_ALLOC_SPARE) == 0); | |
| 751 ASSERT(vd != NULL); | |
| 752 | |
| 5450 | 753 spa->spa_spares.sav_vdevs[i] = vd; |
| 2082 | 754 |
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755 if ((tvd = spa_lookup_by_guid(spa, vd->vdev_guid, |
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756 B_FALSE)) != NULL) { |
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757 if (!tvd->vdev_isspare) |
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758 spa_spare_add(tvd); |
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759 |
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760 /* |
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761 * We only mark the spare active if we were successfully |
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762 * able to load the vdev. Otherwise, importing a pool |
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763 * with a bad active spare would result in strange |
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764 * behavior, because multiple pool would think the spare |
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765 * is actively in use. |
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766 * |
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767 * There is a vulnerability here to an equally bizarre |
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768 * circumstance, where a dead active spare is later |
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769 * brought back to life (onlined or otherwise). Given |
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770 * the rarity of this scenario, and the extra complexity |
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771 * it adds, we ignore the possibility. |
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772 */ |
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773 if (!vdev_is_dead(tvd)) |
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774 spa_spare_activate(tvd); |
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775 } |
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776 |
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777 vd->vdev_top = vd; |
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778 |
| 2082 | 779 if (vdev_open(vd) != 0) |
| 780 continue; | |
| 781 | |
| 5450 | 782 if (vdev_validate_aux(vd) == 0) |
| 783 spa_spare_add(vd); | |
| 2082 | 784 } |
| 785 | |
| 786 /* | |
| 787 * Recompute the stashed list of spares, with status information | |
| 788 * this time. | |
| 789 */ | |
| 5450 | 790 VERIFY(nvlist_remove(spa->spa_spares.sav_config, ZPOOL_CONFIG_SPARES, |
| 2082 | 791 DATA_TYPE_NVLIST_ARRAY) == 0); |
| 792 | |
| 5450 | 793 spares = kmem_alloc(spa->spa_spares.sav_count * sizeof (void *), |
| 794 KM_SLEEP); | |
| 795 for (i = 0; i < spa->spa_spares.sav_count; i++) | |
| 796 spares[i] = vdev_config_generate(spa, | |
| 797 spa->spa_spares.sav_vdevs[i], B_TRUE, B_TRUE, B_FALSE); | |
| 798 VERIFY(nvlist_add_nvlist_array(spa->spa_spares.sav_config, | |
| 799 ZPOOL_CONFIG_SPARES, spares, spa->spa_spares.sav_count) == 0); | |
| 800 for (i = 0; i < spa->spa_spares.sav_count; i++) | |
| 2082 | 801 nvlist_free(spares[i]); |
| 5450 | 802 kmem_free(spares, spa->spa_spares.sav_count * sizeof (void *)); |
| 803 } | |
| 804 | |
| 805 /* | |
| 806 * Load (or re-load) the current list of vdevs describing the active l2cache for | |
| 807 * this pool. When this is called, we have some form of basic information in | |
| 808 * 'spa_l2cache.sav_config'. We parse this into vdevs, try to open them, and | |
| 809 * then re-generate a more complete list including status information. | |
| 810 * Devices which are already active have their details maintained, and are | |
| 811 * not re-opened. | |
| 812 */ | |
| 813 static void | |
| 814 spa_load_l2cache(spa_t *spa) | |
| 815 { | |
| 816 nvlist_t **l2cache; | |
| 817 uint_t nl2cache; | |
| 818 int i, j, oldnvdevs; | |
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819 uint64_t guid, size; |
| 5450 | 820 vdev_t *vd, **oldvdevs, **newvdevs; |
| 821 spa_aux_vdev_t *sav = &spa->spa_l2cache; | |
| 822 | |
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823 ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL); |
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824 |
| 5450 | 825 if (sav->sav_config != NULL) { |
| 826 VERIFY(nvlist_lookup_nvlist_array(sav->sav_config, | |
| 827 ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0); | |
| 828 newvdevs = kmem_alloc(nl2cache * sizeof (void *), KM_SLEEP); | |
| 829 } else { | |
| 830 nl2cache = 0; | |
| 831 } | |
| 832 | |
| 833 oldvdevs = sav->sav_vdevs; | |
| 834 oldnvdevs = sav->sav_count; | |
| 835 sav->sav_vdevs = NULL; | |
| 836 sav->sav_count = 0; | |
| 837 | |
| 838 /* | |
| 839 * Process new nvlist of vdevs. | |
| 840 */ | |
| 841 for (i = 0; i < nl2cache; i++) { | |
| 842 VERIFY(nvlist_lookup_uint64(l2cache[i], ZPOOL_CONFIG_GUID, | |
| 843 &guid) == 0); | |
| 844 | |
| 845 newvdevs[i] = NULL; | |
| 846 for (j = 0; j < oldnvdevs; j++) { | |
| 847 vd = oldvdevs[j]; | |
| 848 if (vd != NULL && guid == vd->vdev_guid) { | |
| 849 /* | |
| 850 * Retain previous vdev for add/remove ops. | |
| 851 */ | |
| 852 newvdevs[i] = vd; | |
| 853 oldvdevs[j] = NULL; | |
| 854 break; | |
| 855 } | |
| 856 } | |
| 857 | |
| 858 if (newvdevs[i] == NULL) { | |
| 859 /* | |
| 860 * Create new vdev | |
| 861 */ | |
| 862 VERIFY(spa_config_parse(spa, &vd, l2cache[i], NULL, 0, | |
| 863 VDEV_ALLOC_L2CACHE) == 0); | |
| 864 ASSERT(vd != NULL); | |
| 865 newvdevs[i] = vd; | |
| 866 | |
| 867 /* | |
| 868 * Commit this vdev as an l2cache device, | |
| 869 * even if it fails to open. | |
| 870 */ | |
| 871 spa_l2cache_add(vd); | |
| 872 | |
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873 vd->vdev_top = vd; |
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874 vd->vdev_aux = sav; |
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875 |
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876 spa_l2cache_activate(vd); |
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877 |
| 5450 | 878 if (vdev_open(vd) != 0) |
| 879 continue; | |
| 880 | |
| 881 (void) vdev_validate_aux(vd); | |
| 882 | |
| 883 if (!vdev_is_dead(vd)) { | |
| 884 size = vdev_get_rsize(vd); | |
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885 l2arc_add_vdev(spa, vd, |
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886 VDEV_LABEL_START_SIZE, |
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887 size - VDEV_LABEL_START_SIZE); |
| 5450 | 888 } |
| 889 } | |
| 890 } | |
| 891 | |
| 892 /* | |
| 893 * Purge vdevs that were dropped | |
| 894 */ | |
| 895 for (i = 0; i < oldnvdevs; i++) { | |
| 896 uint64_t pool; | |
| 897 | |
| 898 vd = oldvdevs[i]; | |
| 899 if (vd != NULL) { | |
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900 if ((spa_mode & FWRITE) && |
| 5450 | 901 spa_l2cache_exists(vd->vdev_guid, &pool) && |
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902 pool != 0ULL && |
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903 l2arc_vdev_present(vd)) { |
| 5450 | 904 l2arc_remove_vdev(vd); |
| 905 } | |
| 906 (void) vdev_close(vd); | |
| 907 spa_l2cache_remove(vd); | |
| 908 } | |
| 909 } | |
| 910 | |
| 911 if (oldvdevs) | |
| 912 kmem_free(oldvdevs, oldnvdevs * sizeof (void *)); | |
| 913 | |
| 914 if (sav->sav_config == NULL) | |
| 915 goto out; | |
| 916 | |
| 917 sav->sav_vdevs = newvdevs; | |
| 918 sav->sav_count = (int)nl2cache; | |
| 919 | |
| 920 /* | |
| 921 * Recompute the stashed list of l2cache devices, with status | |
| 922 * information this time. | |
| 923 */ | |
| 924 VERIFY(nvlist_remove(sav->sav_config, ZPOOL_CONFIG_L2CACHE, | |
| 925 DATA_TYPE_NVLIST_ARRAY) == 0); | |
| 926 | |
| 927 l2cache = kmem_alloc(sav->sav_count * sizeof (void *), KM_SLEEP); | |
| 928 for (i = 0; i < sav->sav_count; i++) | |
| 929 l2cache[i] = vdev_config_generate(spa, | |
| 930 sav->sav_vdevs[i], B_TRUE, B_FALSE, B_TRUE); | |
| 931 VERIFY(nvlist_add_nvlist_array(sav->sav_config, | |
| 932 ZPOOL_CONFIG_L2CACHE, l2cache, sav->sav_count) == 0); | |
| 933 out: | |
| 934 for (i = 0; i < sav->sav_count; i++) | |
| 935 nvlist_free(l2cache[i]); | |
| 936 if (sav->sav_count) | |
| 937 kmem_free(l2cache, sav->sav_count * sizeof (void *)); | |
| 2082 | 938 } |
| 939 | |
| 940 static int | |
| 941 load_nvlist(spa_t *spa, uint64_t obj, nvlist_t **value) | |
| 942 { | |
| 943 dmu_buf_t *db; | |
| 944 char *packed = NULL; | |
| 945 size_t nvsize = 0; | |
| 946 int error; | |
| 947 *value = NULL; | |
| 948 | |
| 949 VERIFY(0 == dmu_bonus_hold(spa->spa_meta_objset, obj, FTAG, &db)); | |
| 950 nvsize = *(uint64_t *)db->db_data; | |
| 951 dmu_buf_rele(db, FTAG); | |
| 952 | |
| 953 packed = kmem_alloc(nvsize, KM_SLEEP); | |
| 954 error = dmu_read(spa->spa_meta_objset, obj, 0, nvsize, packed); | |
| 955 if (error == 0) | |
| 956 error = nvlist_unpack(packed, nvsize, value, 0); | |
| 957 kmem_free(packed, nvsize); | |
| 958 | |
| 959 return (error); | |
| 960 } | |
| 961 | |
| 962 /* | |
| 4451 | 963 * Checks to see if the given vdev could not be opened, in which case we post a |
| 964 * sysevent to notify the autoreplace code that the device has been removed. | |
| 965 */ | |
| 966 static void | |
| 967 spa_check_removed(vdev_t *vd) | |
| 968 { | |
| 969 int c; | |
| 970 | |
| 971 for (c = 0; c < vd->vdev_children; c++) | |
| 972 spa_check_removed(vd->vdev_child[c]); | |
| 973 | |
| 974 if (vd->vdev_ops->vdev_op_leaf && vdev_is_dead(vd)) { | |
| 975 zfs_post_autoreplace(vd->vdev_spa, vd); | |
| 976 spa_event_notify(vd->vdev_spa, vd, ESC_ZFS_VDEV_CHECK); | |
| 977 } | |
| 978 } | |
| 979 | |
| 980 /* | |
| 7294 | 981 * Check for missing log devices |
| 982 */ | |
| 983 int | |
| 984 spa_check_logs(spa_t *spa) | |
| 985 { | |
| 986 switch (spa->spa_log_state) { | |
| 987 case SPA_LOG_MISSING: | |
| 988 /* need to recheck in case slog has been restored */ | |
| 989 case SPA_LOG_UNKNOWN: | |
| 990 if (dmu_objset_find(spa->spa_name, zil_check_log_chain, NULL, | |
| 991 DS_FIND_CHILDREN)) { | |
| 992 spa->spa_log_state = SPA_LOG_MISSING; | |
| 993 return (1); | |
| 994 } | |
| 995 break; | |
| 996 | |
| 997 case SPA_LOG_CLEAR: | |
| 998 (void) dmu_objset_find(spa->spa_name, zil_clear_log_chain, NULL, | |
| 999 DS_FIND_CHILDREN); | |
| 1000 break; | |
| 1001 } | |
| 1002 spa->spa_log_state = SPA_LOG_GOOD; | |
| 1003 return (0); | |
| 1004 } | |
| 1005 | |
| 1006 /* | |
| 789 | 1007 * Load an existing storage pool, using the pool's builtin spa_config as a |
| 1544 | 1008 * source of configuration information. |
| 789 | 1009 */ |
| 1010 static int | |
| 1544 | 1011 spa_load(spa_t *spa, nvlist_t *config, spa_load_state_t state, int mosconfig) |
| 789 | 1012 { |
| 1013 int error = 0; | |
| 1014 nvlist_t *nvroot = NULL; | |
| 1015 vdev_t *rvd; | |
| 1016 uberblock_t *ub = &spa->spa_uberblock; | |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
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diff
changeset
|
1017 uint64_t config_cache_txg = spa->spa_config_txg; |
| 789 | 1018 uint64_t pool_guid; |
| 2082 | 1019 uint64_t version; |
| 4451 | 1020 uint64_t autoreplace = 0; |
| 7294 | 1021 char *ereport = FM_EREPORT_ZFS_POOL; |
| 789 | 1022 |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1023 ASSERT(MUTEX_HELD(&spa_namespace_lock)); |
|
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1024 |
| 1544 | 1025 spa->spa_load_state = state; |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1026 |
| 789 | 1027 if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvroot) || |
| 1733 | 1028 nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &pool_guid)) { |
| 1544 | 1029 error = EINVAL; |
| 1030 goto out; | |
| 1031 } | |
| 789 | 1032 |
| 2082 | 1033 /* |
| 1034 * Versioning wasn't explicitly added to the label until later, so if | |
| 1035 * it's not present treat it as the initial version. | |
| 1036 */ | |
| 1037 if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION, &version) != 0) | |
| 4577 | 1038 version = SPA_VERSION_INITIAL; |
| 2082 | 1039 |
| 1733 | 1040 (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG, |
| 1041 &spa->spa_config_txg); | |
| 1042 | |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
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1601
diff
changeset
|
1043 if ((state == SPA_LOAD_IMPORT || state == SPA_LOAD_TRYIMPORT) && |
| 1544 | 1044 spa_guid_exists(pool_guid, 0)) { |
| 1045 error = EEXIST; | |
| 1046 goto out; | |
| 1047 } | |
| 789 | 1048 |
|
2174
73de7a781492
6433717 offline devices should not be marked persistently unavailble
eschrock
parents:
2082
diff
changeset
|
1049 spa->spa_load_guid = pool_guid; |
|
73de7a781492
6433717 offline devices should not be marked persistently unavailble
eschrock
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2082
diff
changeset
|
1050 |
| 789 | 1051 /* |
| 2082 | 1052 * Parse the configuration into a vdev tree. We explicitly set the |
| 1053 * value that will be returned by spa_version() since parsing the | |
| 1054 * configuration requires knowing the version number. | |
| 789 | 1055 */ |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1056 spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
| 2082 | 1057 spa->spa_ubsync.ub_version = version; |
| 1058 error = spa_config_parse(spa, &rvd, nvroot, NULL, 0, VDEV_ALLOC_LOAD); | |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1059 spa_config_exit(spa, SCL_ALL, FTAG); |
| 789 | 1060 |
| 2082 | 1061 if (error != 0) |
| 1544 | 1062 goto out; |
| 789 | 1063 |
|
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1064 ASSERT(spa->spa_root_vdev == rvd); |
| 789 | 1065 ASSERT(spa_guid(spa) == pool_guid); |
| 1066 | |
| 1067 /* | |
| 1068 * Try to open all vdevs, loading each label in the process. | |
| 1069 */ | |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1070 spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
|
4070
4390ea390a1e
6386594 zdb message should be clearer when failing for lack of permissions
mc142369
parents:
3975
diff
changeset
|
1071 error = vdev_open(rvd); |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1072 spa_config_exit(spa, SCL_ALL, FTAG); |
|
4070
4390ea390a1e
6386594 zdb message should be clearer when failing for lack of permissions
mc142369
parents:
3975
diff
changeset
|
1073 if (error != 0) |
| 1544 | 1074 goto out; |
| 789 | 1075 |
| 1076 /* | |
|
1986
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
1077 * Validate the labels for all leaf vdevs. We need to grab the config |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1078 * lock because all label I/O is done with ZIO_FLAG_CONFIG_WRITER. |
|
1986
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
1079 */ |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1080 spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
|
1986
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
1081 error = vdev_validate(rvd); |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1082 spa_config_exit(spa, SCL_ALL, FTAG); |
|
1986
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
1083 |
|
4070
4390ea390a1e
6386594 zdb message should be clearer when failing for lack of permissions
mc142369
parents:
3975
diff
changeset
|
1084 if (error != 0) |
|
1986
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
1085 goto out; |
|
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
1086 |
|
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
1087 if (rvd->vdev_state <= VDEV_STATE_CANT_OPEN) { |
|
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
1088 error = ENXIO; |
|
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
1089 goto out; |
|
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
1090 } |
|
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
1091 |
|
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
1092 /* |
| 789 | 1093 * Find the best uberblock. |
| 1094 */ | |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1095 vdev_uberblock_load(NULL, rvd, ub); |
| 789 | 1096 |
| 1097 /* | |
| 1098 * If we weren't able to find a single valid uberblock, return failure. | |
| 1099 */ | |
| 1100 if (ub->ub_txg == 0) { | |
| 1760 | 1101 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1102 VDEV_AUX_CORRUPT_DATA); | |
| 1544 | 1103 error = ENXIO; |
| 1104 goto out; | |
| 1105 } | |
| 1106 | |
| 1107 /* | |
| 1108 * If the pool is newer than the code, we can't open it. | |
| 1109 */ | |
| 4577 | 1110 if (ub->ub_version > SPA_VERSION) { |
| 1760 | 1111 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1112 VDEV_AUX_VERSION_NEWER); | |
| 1544 | 1113 error = ENOTSUP; |
| 1114 goto out; | |
| 789 | 1115 } |
| 1116 | |
| 1117 /* | |
| 1118 * If the vdev guid sum doesn't match the uberblock, we have an | |
| 1119 * incomplete configuration. | |
| 1120 */ | |
| 1732 | 1121 if (rvd->vdev_guid_sum != ub->ub_guid_sum && mosconfig) { |
| 1544 | 1122 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1123 VDEV_AUX_BAD_GUID_SUM); | |
| 1124 error = ENXIO; | |
| 1125 goto out; | |
| 789 | 1126 } |
| 1127 | |
| 1128 /* | |
| 1129 * Initialize internal SPA structures. | |
| 1130 */ | |
| 1131 spa->spa_state = POOL_STATE_ACTIVE; | |
| 1132 spa->spa_ubsync = spa->spa_uberblock; | |
| 1133 spa->spa_first_txg = spa_last_synced_txg(spa) + 1; | |
| 1544 | 1134 error = dsl_pool_open(spa, spa->spa_first_txg, &spa->spa_dsl_pool); |
| 1135 if (error) { | |
| 1136 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1137 VDEV_AUX_CORRUPT_DATA); | |
| 1138 goto out; | |
| 1139 } | |
| 789 | 1140 spa->spa_meta_objset = spa->spa_dsl_pool->dp_meta_objset; |
| 1141 | |
| 1544 | 1142 if (zap_lookup(spa->spa_meta_objset, |
| 789 | 1143 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CONFIG, |
| 1544 | 1144 sizeof (uint64_t), 1, &spa->spa_config_object) != 0) { |
| 1145 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1146 VDEV_AUX_CORRUPT_DATA); | |
| 1147 error = EIO; | |
| 1148 goto out; | |
| 1149 } | |
| 789 | 1150 |
| 1151 if (!mosconfig) { | |
| 2082 | 1152 nvlist_t *newconfig; |
|
3975
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1153 uint64_t hostid; |
| 2082 | 1154 |
| 1155 if (load_nvlist(spa, spa->spa_config_object, &newconfig) != 0) { | |
| 1544 | 1156 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1157 VDEV_AUX_CORRUPT_DATA); | |
| 1158 error = EIO; | |
| 1159 goto out; | |
| 1160 } | |
| 789 | 1161 |
|
7706
75cbbfb9ce50
6716241 Changing hostid, by moving in a new sysinit file, panics a zfs root file system
Lin Ling <Lin.Ling@Sun.COM>
parents:
7687
diff
changeset
|
1162 if (!spa_is_root(spa) && nvlist_lookup_uint64(newconfig, |
|
75cbbfb9ce50
6716241 Changing hostid, by moving in a new sysinit file, panics a zfs root file system
Lin Ling <Lin.Ling@Sun.COM>
parents:
7687
diff
changeset
|
1163 ZPOOL_CONFIG_HOSTID, &hostid) == 0) { |
|
3975
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1164 char *hostname; |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1165 unsigned long myhostid = 0; |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1166 |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1167 VERIFY(nvlist_lookup_string(newconfig, |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1168 ZPOOL_CONFIG_HOSTNAME, &hostname) == 0); |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1169 |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1170 (void) ddi_strtoul(hw_serial, NULL, 10, &myhostid); |
|
4178
ad95fd86760b
6553537 zfs root fails to boot from a snv_63+zfsboot-pfinstall netinstall image
lling
parents:
4070
diff
changeset
|
1171 if (hostid != 0 && myhostid != 0 && |
|
ad95fd86760b
6553537 zfs root fails to boot from a snv_63+zfsboot-pfinstall netinstall image
lling
parents:
4070
diff
changeset
|
1172 (unsigned long)hostid != myhostid) { |
|
3975
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1173 cmn_err(CE_WARN, "pool '%s' could not be " |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1174 "loaded as it was last accessed by " |
|
7706
75cbbfb9ce50
6716241 Changing hostid, by moving in a new sysinit file, panics a zfs root file system
Lin Ling <Lin.Ling@Sun.COM>
parents:
7687
diff
changeset
|
1175 "another system (host: %s hostid: 0x%lx). " |
|
3975
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1176 "See: http://www.sun.com/msg/ZFS-8000-EY", |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1177 spa_name(spa), hostname, |
|
3975
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1178 (unsigned long)hostid); |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1179 error = EBADF; |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1180 goto out; |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1181 } |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1182 } |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1183 |
| 789 | 1184 spa_config_set(spa, newconfig); |
| 1185 spa_unload(spa); | |
| 1186 spa_deactivate(spa); | |
| 1187 spa_activate(spa); | |
| 1188 | |
| 1544 | 1189 return (spa_load(spa, newconfig, state, B_TRUE)); |
| 1190 } | |
| 1191 | |
| 1192 if (zap_lookup(spa->spa_meta_objset, | |
| 1193 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SYNC_BPLIST, | |
| 1194 sizeof (uint64_t), 1, &spa->spa_sync_bplist_obj) != 0) { | |
| 1195 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1196 VDEV_AUX_CORRUPT_DATA); | |
| 1197 error = EIO; | |
| 1198 goto out; | |
| 789 | 1199 } |
| 1200 | |
| 1544 | 1201 /* |
| 2082 | 1202 * Load the bit that tells us to use the new accounting function |
| 1203 * (raid-z deflation). If we have an older pool, this will not | |
| 1204 * be present. | |
| 1205 */ | |
| 1206 error = zap_lookup(spa->spa_meta_objset, | |
| 1207 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
| 1208 sizeof (uint64_t), 1, &spa->spa_deflate); | |
| 1209 if (error != 0 && error != ENOENT) { | |
| 1210 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1211 VDEV_AUX_CORRUPT_DATA); | |
| 1212 error = EIO; | |
| 1213 goto out; | |
| 1214 } | |
| 1215 | |
| 1216 /* | |
| 1544 | 1217 * Load the persistent error log. If we have an older pool, this will |
| 1218 * not be present. | |
| 1219 */ | |
| 1220 error = zap_lookup(spa->spa_meta_objset, | |
| 1221 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_ERRLOG_LAST, | |
| 1222 sizeof (uint64_t), 1, &spa->spa_errlog_last); | |
|
1807
35c8b566d7af
6410711 intent log blocks don't get invited to pool parties
bonwick
parents:
1775
diff
changeset
|
1223 if (error != 0 && error != ENOENT) { |
| 1544 | 1224 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1225 VDEV_AUX_CORRUPT_DATA); | |
| 1226 error = EIO; | |
| 1227 goto out; | |
| 1228 } | |
| 1229 | |
| 1230 error = zap_lookup(spa->spa_meta_objset, | |
| 1231 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_ERRLOG_SCRUB, | |
| 1232 sizeof (uint64_t), 1, &spa->spa_errlog_scrub); | |
| 1233 if (error != 0 && error != ENOENT) { | |
| 1234 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1235 VDEV_AUX_CORRUPT_DATA); | |
| 1236 error = EIO; | |
| 1237 goto out; | |
| 1238 } | |
| 789 | 1239 |
| 1240 /* | |
| 2926 | 1241 * Load the history object. If we have an older pool, this |
| 1242 * will not be present. | |
| 1243 */ | |
| 1244 error = zap_lookup(spa->spa_meta_objset, | |
| 1245 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_HISTORY, | |
| 1246 sizeof (uint64_t), 1, &spa->spa_history); | |
| 1247 if (error != 0 && error != ENOENT) { | |
| 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 /* | |
| 2082 | 1255 * Load any hot spares for this pool. |
| 1256 */ | |
| 1257 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, | |
| 5450 | 1258 DMU_POOL_SPARES, sizeof (uint64_t), 1, &spa->spa_spares.sav_object); |
| 2082 | 1259 if (error != 0 && error != ENOENT) { |
| 1260 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1261 VDEV_AUX_CORRUPT_DATA); | |
| 1262 error = EIO; | |
| 1263 goto out; | |
| 1264 } | |
| 1265 if (error == 0) { | |
| 4577 | 1266 ASSERT(spa_version(spa) >= SPA_VERSION_SPARES); |
| 5450 | 1267 if (load_nvlist(spa, spa->spa_spares.sav_object, |
| 1268 &spa->spa_spares.sav_config) != 0) { | |
| 2082 | 1269 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
| 1270 VDEV_AUX_CORRUPT_DATA); | |
| 1271 error = EIO; | |
| 1272 goto out; | |
| 1273 } | |
| 1274 | |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1275 spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
| 2082 | 1276 spa_load_spares(spa); |
|
7754
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6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1277 spa_config_exit(spa, SCL_ALL, FTAG); |
| 2082 | 1278 } |
| 1279 | |
| 5450 | 1280 /* |
| 1281 * Load any level 2 ARC devices for this pool. | |
| 1282 */ | |
| 1283 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, | |
| 1284 DMU_POOL_L2CACHE, sizeof (uint64_t), 1, | |
| 1285 &spa->spa_l2cache.sav_object); | |
| 1286 if (error != 0 && error != ENOENT) { | |
| 1287 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1288 VDEV_AUX_CORRUPT_DATA); | |
| 1289 error = EIO; | |
| 1290 goto out; | |
| 1291 } | |
| 1292 if (error == 0) { | |
| 1293 ASSERT(spa_version(spa) >= SPA_VERSION_L2CACHE); | |
| 1294 if (load_nvlist(spa, spa->spa_l2cache.sav_object, | |
| 1295 &spa->spa_l2cache.sav_config) != 0) { | |
| 1296 vdev_set_state(rvd, B_TRUE, | |
| 1297 VDEV_STATE_CANT_OPEN, | |
| 1298 VDEV_AUX_CORRUPT_DATA); | |
| 1299 error = EIO; | |
| 1300 goto out; | |
| 1301 } | |
| 1302 | |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1303 spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
| 5450 | 1304 spa_load_l2cache(spa); |
|
7754
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6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1305 spa_config_exit(spa, SCL_ALL, FTAG); |
| 5450 | 1306 } |
| 1307 | |
| 7294 | 1308 if (spa_check_logs(spa)) { |
| 1309 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1310 VDEV_AUX_BAD_LOG); | |
| 1311 error = ENXIO; | |
| 1312 ereport = FM_EREPORT_ZFS_LOG_REPLAY; | |
| 1313 goto out; | |
| 1314 } | |
| 1315 | |
| 1316 | |
| 5094 | 1317 spa->spa_delegation = zpool_prop_default_numeric(ZPOOL_PROP_DELEGATION); |
| 4543 | 1318 |
| 3912 | 1319 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, |
| 1320 DMU_POOL_PROPS, sizeof (uint64_t), 1, &spa->spa_pool_props_object); | |
| 1321 | |
| 1322 if (error && error != ENOENT) { | |
| 1323 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
| 1324 VDEV_AUX_CORRUPT_DATA); | |
| 1325 error = EIO; | |
| 1326 goto out; | |
| 1327 } | |
| 1328 | |
| 1329 if (error == 0) { | |
| 1330 (void) zap_lookup(spa->spa_meta_objset, | |
| 1331 spa->spa_pool_props_object, | |
| 4451 | 1332 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), |
| 3912 | 1333 sizeof (uint64_t), 1, &spa->spa_bootfs); |
| 4451 | 1334 (void) zap_lookup(spa->spa_meta_objset, |
| 1335 spa->spa_pool_props_object, | |
| 1336 zpool_prop_to_name(ZPOOL_PROP_AUTOREPLACE), | |
| 1337 sizeof (uint64_t), 1, &autoreplace); | |
| 4543 | 1338 (void) zap_lookup(spa->spa_meta_objset, |
| 1339 spa->spa_pool_props_object, | |
| 1340 zpool_prop_to_name(ZPOOL_PROP_DELEGATION), | |
| 1341 sizeof (uint64_t), 1, &spa->spa_delegation); | |
| 5329 | 1342 (void) zap_lookup(spa->spa_meta_objset, |
| 1343 spa->spa_pool_props_object, | |
| 1344 zpool_prop_to_name(ZPOOL_PROP_FAILUREMODE), | |
| 1345 sizeof (uint64_t), 1, &spa->spa_failmode); | |
| 3912 | 1346 } |
| 1347 | |
| 2082 | 1348 /* |
| 4451 | 1349 * If the 'autoreplace' property is set, then post a resource notifying |
| 1350 * the ZFS DE that it should not issue any faults for unopenable | |
| 1351 * devices. We also iterate over the vdevs, and post a sysevent for any | |
| 1352 * unopenable vdevs so that the normal autoreplace handler can take | |
| 1353 * over. | |
| 1354 */ | |
|
5756
05eb4c1ff492
6585441 spa_event_notify() doesn't pass its attributes
eschrock
parents:
5688
diff
changeset
|
1355 if (autoreplace && state != SPA_LOAD_TRYIMPORT) |
| 4451 | 1356 spa_check_removed(spa->spa_root_vdev); |
| 1357 | |
| 1358 /* | |
|
1986
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
1359 * Load the vdev state for all toplevel vdevs. |
| 789 | 1360 */ |
|
1986
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
1361 vdev_load(rvd); |
| 789 | 1362 |
| 1363 /* | |
| 1364 * Propagate the leaf DTLs we just loaded all the way up the tree. | |
| 1365 */ | |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1366 spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
| 789 | 1367 vdev_dtl_reassess(rvd, 0, 0, B_FALSE); |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1368 spa_config_exit(spa, SCL_ALL, FTAG); |
| 789 | 1369 |
| 1370 /* | |
| 1371 * Check the state of the root vdev. If it can't be opened, it | |
| 1372 * indicates one or more toplevel vdevs are faulted. | |
| 1373 */ | |
| 1544 | 1374 if (rvd->vdev_state <= VDEV_STATE_CANT_OPEN) { |
| 1375 error = ENXIO; | |
| 1376 goto out; | |
| 1377 } | |
| 789 | 1378 |
| 1544 | 1379 if ((spa_mode & FWRITE) && state != SPA_LOAD_TRYIMPORT) { |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1380 dmu_tx_t *tx; |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1381 int need_update = B_FALSE; |
|
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1382 int c; |
|
1601
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
1383 |
|
1635
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6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1384 /* |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1385 * Claim log blocks that haven't been committed yet. |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1386 * This must all happen in a single txg. |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1387 */ |
|
1601
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
1388 tx = dmu_tx_create_assigned(spa_get_dsl(spa), |
| 789 | 1389 spa_first_txg(spa)); |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1390 (void) dmu_objset_find(spa_name(spa), |
| 2417 | 1391 zil_claim, tx, DS_FIND_CHILDREN); |
| 789 | 1392 dmu_tx_commit(tx); |
| 1393 | |
| 1394 spa->spa_sync_on = B_TRUE; | |
| 1395 txg_sync_start(spa->spa_dsl_pool); | |
| 1396 | |
| 1397 /* | |
| 1398 * Wait for all claims to sync. | |
| 1399 */ | |
| 1400 txg_wait_synced(spa->spa_dsl_pool, 0); | |
|
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1401 |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1402 /* |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1403 * If the config cache is stale, or we have uninitialized |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1404 * metaslabs (see spa_vdev_add()), then update the config. |
|
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1405 */ |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1406 if (config_cache_txg != spa->spa_config_txg || |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1407 state == SPA_LOAD_IMPORT) |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1408 need_update = B_TRUE; |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1409 |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1410 for (c = 0; c < rvd->vdev_children; c++) |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1411 if (rvd->vdev_child[c]->vdev_ms_array == 0) |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1412 need_update = B_TRUE; |
|
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1413 |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1414 /* |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1415 * Update the config cache asychronously in case we're the |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1416 * root pool, in which case the config cache isn't writable yet. |
|
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1417 */ |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1418 if (need_update) |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1419 spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE); |
| 789 | 1420 } |
| 1421 | |
| 1544 | 1422 error = 0; |
| 1423 out: | |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
7042
diff
changeset
|
1424 spa->spa_minref = refcount_count(&spa->spa_refcount); |
| 2082 | 1425 if (error && error != EBADF) |
| 7294 | 1426 zfs_ereport_post(ereport, spa, NULL, NULL, 0, 0); |
| 1544 | 1427 spa->spa_load_state = SPA_LOAD_NONE; |
| 1428 spa->spa_ena = 0; | |
| 1429 | |
| 1430 return (error); | |
| 789 | 1431 } |
| 1432 | |
| 1433 /* | |
| 1434 * Pool Open/Import | |
| 1435 * | |
| 1436 * The import case is identical to an open except that the configuration is sent | |
| 1437 * down from userland, instead of grabbed from the configuration cache. For the | |
| 1438 * case of an open, the pool configuration will exist in the | |
| 4451 | 1439 * POOL_STATE_UNINITIALIZED state. |
| 789 | 1440 * |
| 1441 * The stats information (gen/count/ustats) is used to gather vdev statistics at | |
| 1442 * the same time open the pool, without having to keep around the spa_t in some | |
| 1443 * ambiguous state. | |
| 1444 */ | |
| 1445 static int | |
| 1446 spa_open_common(const char *pool, spa_t **spapp, void *tag, nvlist_t **config) | |
| 1447 { | |
| 1448 spa_t *spa; | |
| 1449 int error; | |
| 1450 int locked = B_FALSE; | |
| 1451 | |
| 1452 *spapp = NULL; | |
| 1453 | |
| 1454 /* | |
| 1455 * As disgusting as this is, we need to support recursive calls to this | |
| 1456 * function because dsl_dir_open() is called during spa_load(), and ends | |
| 1457 * up calling spa_open() again. The real fix is to figure out how to | |
| 1458 * avoid dsl_dir_open() calling this in the first place. | |
| 1459 */ | |
| 1460 if (mutex_owner(&spa_namespace_lock) != curthread) { | |
| 1461 mutex_enter(&spa_namespace_lock); | |
| 1462 locked = B_TRUE; | |
| 1463 } | |
| 1464 | |
| 1465 if ((spa = spa_lookup(pool)) == NULL) { | |
| 1466 if (locked) | |
| 1467 mutex_exit(&spa_namespace_lock); | |
| 1468 return (ENOENT); | |
| 1469 } | |
| 1470 if (spa->spa_state == POOL_STATE_UNINITIALIZED) { | |
| 1471 | |
| 1472 spa_activate(spa); | |
| 1473 | |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1474 error = spa_load(spa, spa->spa_config, SPA_LOAD_OPEN, B_FALSE); |
| 789 | 1475 |
| 1476 if (error == EBADF) { | |
| 1477 /* | |
|
1986
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
1478 * If vdev_validate() returns failure (indicated by |
|
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
1479 * EBADF), it indicates that one of the vdevs indicates |
|
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
1480 * that the pool has been exported or destroyed. If |
|
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
1481 * this is the case, the config cache is out of sync and |
|
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
1482 * we should remove the pool from the namespace. |
| 789 | 1483 */ |
| 1484 spa_unload(spa); | |
| 1485 spa_deactivate(spa); | |
|
6643
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
changeset
|
1486 spa_config_sync(spa, B_TRUE, B_TRUE); |
| 789 | 1487 spa_remove(spa); |
| 1488 if (locked) | |
| 1489 mutex_exit(&spa_namespace_lock); | |
| 1490 return (ENOENT); | |
| 1544 | 1491 } |
| 1492 | |
| 1493 if (error) { | |
| 789 | 1494 /* |
| 1495 * We can't open the pool, but we still have useful | |
| 1496 * information: the state of each vdev after the | |
| 1497 * attempted vdev_open(). Return this to the user. | |
| 1498 */ | |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1499 if (config != NULL && spa->spa_root_vdev != NULL) |
| 789 | 1500 *config = spa_config_generate(spa, NULL, -1ULL, |
| 1501 B_TRUE); | |
| 1502 spa_unload(spa); | |
| 1503 spa_deactivate(spa); | |
| 1544 | 1504 spa->spa_last_open_failed = B_TRUE; |
| 789 | 1505 if (locked) |
| 1506 mutex_exit(&spa_namespace_lock); | |
| 1507 *spapp = NULL; | |
| 1508 return (error); | |
| 1544 | 1509 } else { |
| 1510 spa->spa_last_open_failed = B_FALSE; | |
| 789 | 1511 } |
| 1512 } | |
| 1513 | |
| 1514 spa_open_ref(spa, tag); | |
| 4451 | 1515 |
| 789 | 1516 if (locked) |
| 1517 mutex_exit(&spa_namespace_lock); | |
| 1518 | |
| 1519 *spapp = spa; | |
| 1520 | |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1521 if (config != NULL) |
| 789 | 1522 *config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); |
| 1523 | |
| 1524 return (0); | |
| 1525 } | |
| 1526 | |
| 1527 int | |
| 1528 spa_open(const char *name, spa_t **spapp, void *tag) | |
| 1529 { | |
| 1530 return (spa_open_common(name, spapp, tag, NULL)); | |
| 1531 } | |
| 1532 | |
| 1544 | 1533 /* |
| 1534 * Lookup the given spa_t, incrementing the inject count in the process, | |
| 1535 * preventing it from being exported or destroyed. | |
| 1536 */ | |
| 1537 spa_t * | |
| 1538 spa_inject_addref(char *name) | |
| 1539 { | |
| 1540 spa_t *spa; | |
| 1541 | |
| 1542 mutex_enter(&spa_namespace_lock); | |
| 1543 if ((spa = spa_lookup(name)) == NULL) { | |
| 1544 mutex_exit(&spa_namespace_lock); | |
| 1545 return (NULL); | |
| 1546 } | |
| 1547 spa->spa_inject_ref++; | |
| 1548 mutex_exit(&spa_namespace_lock); | |
| 1549 | |
| 1550 return (spa); | |
| 1551 } | |
| 1552 | |
| 1553 void | |
| 1554 spa_inject_delref(spa_t *spa) | |
| 1555 { | |
| 1556 mutex_enter(&spa_namespace_lock); | |
| 1557 spa->spa_inject_ref--; | |
| 1558 mutex_exit(&spa_namespace_lock); | |
| 1559 } | |
| 1560 | |
| 5450 | 1561 /* |
| 1562 * Add spares device information to the nvlist. | |
| 1563 */ | |
| 2082 | 1564 static void |
| 1565 spa_add_spares(spa_t *spa, nvlist_t *config) | |
| 1566 { | |
| 1567 nvlist_t **spares; | |
| 1568 uint_t i, nspares; | |
| 1569 nvlist_t *nvroot; | |
| 1570 uint64_t guid; | |
| 1571 vdev_stat_t *vs; | |
| 1572 uint_t vsc; | |
|
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|
1573 uint64_t pool; |
| 2082 | 1574 |
| 5450 | 1575 if (spa->spa_spares.sav_count == 0) |
| 2082 | 1576 return; |
| 1577 | |
| 1578 VERIFY(nvlist_lookup_nvlist(config, | |
| 1579 ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); | |
| 5450 | 1580 VERIFY(nvlist_lookup_nvlist_array(spa->spa_spares.sav_config, |
| 2082 | 1581 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); |
| 1582 if (nspares != 0) { | |
| 1583 VERIFY(nvlist_add_nvlist_array(nvroot, | |
| 1584 ZPOOL_CONFIG_SPARES, spares, nspares) == 0); | |
| 1585 VERIFY(nvlist_lookup_nvlist_array(nvroot, | |
| 1586 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); | |
| 1587 | |
| 1588 /* | |
| 1589 * Go through and find any spares which have since been | |
| 1590 * repurposed as an active spare. If this is the case, update | |
| 1591 * their status appropriately. | |
| 1592 */ | |
| 1593 for (i = 0; i < nspares; i++) { | |
| 1594 VERIFY(nvlist_lookup_uint64(spares[i], | |
| 1595 ZPOOL_CONFIG_GUID, &guid) == 0); | |
|
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6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
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|
1596 if (spa_spare_exists(guid, &pool, NULL) && |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
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|
1597 pool != 0ULL) { |
| 2082 | 1598 VERIFY(nvlist_lookup_uint64_array( |
| 1599 spares[i], ZPOOL_CONFIG_STATS, | |
| 1600 (uint64_t **)&vs, &vsc) == 0); | |
| 1601 vs->vs_state = VDEV_STATE_CANT_OPEN; | |
| 1602 vs->vs_aux = VDEV_AUX_SPARED; | |
| 1603 } | |
| 1604 } | |
| 1605 } | |
| 1606 } | |
| 1607 | |
| 5450 | 1608 /* |
| 1609 * Add l2cache device information to the nvlist, including vdev stats. | |
| 1610 */ | |
| 1611 static void | |
| 1612 spa_add_l2cache(spa_t *spa, nvlist_t *config) | |
| 1613 { | |
| 1614 nvlist_t **l2cache; | |
| 1615 uint_t i, j, nl2cache; | |
| 1616 nvlist_t *nvroot; | |
| 1617 uint64_t guid; | |
| 1618 vdev_t *vd; | |
| 1619 vdev_stat_t *vs; | |
| 1620 uint_t vsc; | |
| 1621 | |
| 1622 if (spa->spa_l2cache.sav_count == 0) | |
| 1623 return; | |
| 1624 | |
|
7754
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6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
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diff
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|
1625 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); |
| 5450 | 1626 |
| 1627 VERIFY(nvlist_lookup_nvlist(config, | |
| 1628 ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); | |
| 1629 VERIFY(nvlist_lookup_nvlist_array(spa->spa_l2cache.sav_config, | |
| 1630 ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0); | |
| 1631 if (nl2cache != 0) { | |
| 1632 VERIFY(nvlist_add_nvlist_array(nvroot, | |
| 1633 ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache) == 0); | |
| 1634 VERIFY(nvlist_lookup_nvlist_array(nvroot, | |
| 1635 ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0); | |
| 1636 | |
| 1637 /* | |
| 1638 * Update level 2 cache device stats. | |
| 1639 */ | |
| 1640 | |
| 1641 for (i = 0; i < nl2cache; i++) { | |
| 1642 VERIFY(nvlist_lookup_uint64(l2cache[i], | |
| 1643 ZPOOL_CONFIG_GUID, &guid) == 0); | |
| 1644 | |
| 1645 vd = NULL; | |
| 1646 for (j = 0; j < spa->spa_l2cache.sav_count; j++) { | |
| 1647 if (guid == | |
| 1648 spa->spa_l2cache.sav_vdevs[j]->vdev_guid) { | |
| 1649 vd = spa->spa_l2cache.sav_vdevs[j]; | |
| 1650 break; | |
| 1651 } | |
| 1652 } | |
| 1653 ASSERT(vd != NULL); | |
| 1654 | |
| 1655 VERIFY(nvlist_lookup_uint64_array(l2cache[i], | |
| 1656 ZPOOL_CONFIG_STATS, (uint64_t **)&vs, &vsc) == 0); | |
| 1657 vdev_get_stats(vd, vs); | |
| 1658 } | |
| 1659 } | |
| 1660 | |
|
7754
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6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
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diff
changeset
|
1661 spa_config_exit(spa, SCL_CONFIG, FTAG); |
| 5450 | 1662 } |
| 1663 | |
| 789 | 1664 int |
| 1544 | 1665 spa_get_stats(const char *name, nvlist_t **config, char *altroot, size_t buflen) |
| 789 | 1666 { |
| 1667 int error; | |
| 1668 spa_t *spa; | |
| 1669 | |
| 1670 *config = NULL; | |
| 1671 error = spa_open_common(name, &spa, FTAG, config); | |
| 1672 | |
| 2082 | 1673 if (spa && *config != NULL) { |
| 1544 | 1674 VERIFY(nvlist_add_uint64(*config, ZPOOL_CONFIG_ERRCOUNT, |
| 1675 spa_get_errlog_size(spa)) == 0); | |
| 1676 | |
|
7754
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6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
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changeset
|
1677 if (spa_suspended(spa)) |
|
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
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|
1678 VERIFY(nvlist_add_uint64(*config, |
|
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
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diff
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|
1679 ZPOOL_CONFIG_SUSPENDED, spa->spa_failmode) == 0); |
|
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
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diff
changeset
|
1680 |
| 2082 | 1681 spa_add_spares(spa, *config); |
| 5450 | 1682 spa_add_l2cache(spa, *config); |
| 2082 | 1683 } |
| 1684 | |
| 1544 | 1685 /* |
| 1686 * We want to get the alternate root even for faulted pools, so we cheat | |
| 1687 * and call spa_lookup() directly. | |
| 1688 */ | |
| 1689 if (altroot) { | |
| 1690 if (spa == NULL) { | |
| 1691 mutex_enter(&spa_namespace_lock); | |
| 1692 spa = spa_lookup(name); | |
| 1693 if (spa) | |
| 1694 spa_altroot(spa, altroot, buflen); | |
| 1695 else | |
| 1696 altroot[0] = '\0'; | |
| 1697 spa = NULL; | |
| 1698 mutex_exit(&spa_namespace_lock); | |
| 1699 } else { | |
| 1700 spa_altroot(spa, altroot, buflen); | |
| 1701 } | |
| 1702 } | |
| 1703 | |
| 789 | 1704 if (spa != NULL) |
| 1705 spa_close(spa, FTAG); | |
| 1706 | |
| 1707 return (error); | |
| 1708 } | |
| 1709 | |
| 1710 /* | |
| 5450 | 1711 * Validate that the auxiliary device array is well formed. We must have an |
| 1712 * array of nvlists, each which describes a valid leaf vdev. If this is an | |
| 1713 * import (mode is VDEV_ALLOC_SPARE), then we allow corrupted spares to be | |
| 1714 * specified, as long as they are well-formed. | |
| 2082 | 1715 */ |
| 1716 static int | |
| 5450 | 1717 spa_validate_aux_devs(spa_t *spa, nvlist_t *nvroot, uint64_t crtxg, int mode, |
| 1718 spa_aux_vdev_t *sav, const char *config, uint64_t version, | |
| 1719 vdev_labeltype_t label) | |
| 2082 | 1720 { |
| 5450 | 1721 nvlist_t **dev; |
| 1722 uint_t i, ndev; | |
| 2082 | 1723 vdev_t *vd; |
| 1724 int error; | |
| 1725 | |
|
7754
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6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
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diff
changeset
|
1726 ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL); |
|
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
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diff
changeset
|
1727 |
| 2082 | 1728 /* |
| 5450 | 1729 * It's acceptable to have no devs specified. |
| 2082 | 1730 */ |
| 5450 | 1731 if (nvlist_lookup_nvlist_array(nvroot, config, &dev, &ndev) != 0) |
| 2082 | 1732 return (0); |
| 1733 | |
| 5450 | 1734 if (ndev == 0) |
| 2082 | 1735 return (EINVAL); |
| 1736 | |
| 1737 /* | |
| 5450 | 1738 * Make sure the pool is formatted with a version that supports this |
| 1739 * device type. | |
| 2082 | 1740 */ |
| 5450 | 1741 if (spa_version(spa) < version) |
| 2082 | 1742 return (ENOTSUP); |
| 1743 | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
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3290
diff
changeset
|
1744 /* |
| 5450 | 1745 * Set the pending device list so we correctly handle device in-use |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
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diff
changeset
|
1746 * checking. |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
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3290
diff
changeset
|
1747 */ |
| 5450 | 1748 sav->sav_pending = dev; |
| 1749 sav->sav_npending = ndev; | |
| 1750 | |
| 1751 for (i = 0; i < ndev; i++) { | |
| 1752 if ((error = spa_config_parse(spa, &vd, dev[i], NULL, 0, | |
| 2082 | 1753 mode)) != 0) |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1754 goto out; |
| 2082 | 1755 |
| 1756 if (!vd->vdev_ops->vdev_op_leaf) { | |
| 1757 vdev_free(vd); | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
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3290
diff
changeset
|
1758 error = EINVAL; |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1759 goto out; |
| 2082 | 1760 } |
| 1761 | |
| 5450 | 1762 /* |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1763 * The L2ARC currently only supports disk devices in |
|
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1764 * kernel context. For user-level testing, we allow it. |
| 5450 | 1765 */ |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1766 #ifdef _KERNEL |
| 5450 | 1767 if ((strcmp(config, ZPOOL_CONFIG_L2CACHE) == 0) && |
| 1768 strcmp(vd->vdev_ops->vdev_op_type, VDEV_TYPE_DISK) != 0) { | |
| 1769 error = ENOTBLK; | |
| 1770 goto out; | |
| 1771 } | |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1772 #endif |
| 2082 | 1773 vd->vdev_top = vd; |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1774 |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1775 if ((error = vdev_open(vd)) == 0 && |
| 5450 | 1776 (error = vdev_label_init(vd, crtxg, label)) == 0) { |
| 1777 VERIFY(nvlist_add_uint64(dev[i], ZPOOL_CONFIG_GUID, | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1778 vd->vdev_guid) == 0); |
| 2082 | 1779 } |
| 1780 | |
| 1781 vdev_free(vd); | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1782 |
| 5450 | 1783 if (error && |
| 1784 (mode != VDEV_ALLOC_SPARE && mode != VDEV_ALLOC_L2CACHE)) | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1785 goto out; |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1786 else |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1787 error = 0; |
| 2082 | 1788 } |
| 1789 | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1790 out: |
| 5450 | 1791 sav->sav_pending = NULL; |
| 1792 sav->sav_npending = 0; | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1793 return (error); |
| 2082 | 1794 } |
| 1795 | |
| 5450 | 1796 static int |
| 1797 spa_validate_aux(spa_t *spa, nvlist_t *nvroot, uint64_t crtxg, int mode) | |
| 1798 { | |
| 1799 int error; | |
| 1800 | |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1801 ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL); |
|
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1802 |
| 5450 | 1803 if ((error = spa_validate_aux_devs(spa, nvroot, crtxg, mode, |
| 1804 &spa->spa_spares, ZPOOL_CONFIG_SPARES, SPA_VERSION_SPARES, | |
| 1805 VDEV_LABEL_SPARE)) != 0) { | |
| 1806 return (error); | |
| 1807 } | |
| 1808 | |
| 1809 return (spa_validate_aux_devs(spa, nvroot, crtxg, mode, | |
| 1810 &spa->spa_l2cache, ZPOOL_CONFIG_L2CACHE, SPA_VERSION_L2CACHE, | |
| 1811 VDEV_LABEL_L2CACHE)); | |
| 1812 } | |
| 1813 | |
| 1814 static void | |
| 1815 spa_set_aux_vdevs(spa_aux_vdev_t *sav, nvlist_t **devs, int ndevs, | |
| 1816 const char *config) | |
| 1817 { | |
| 1818 int i; | |
| 1819 | |
| 1820 if (sav->sav_config != NULL) { | |
| 1821 nvlist_t **olddevs; | |
| 1822 uint_t oldndevs; | |
| 1823 nvlist_t **newdevs; | |
| 1824 | |
| 1825 /* | |
| 1826 * Generate new dev list by concatentating with the | |
| 1827 * current dev list. | |
| 1828 */ | |
| 1829 VERIFY(nvlist_lookup_nvlist_array(sav->sav_config, config, | |
| 1830 &olddevs, &oldndevs) == 0); | |
| 1831 | |
| 1832 newdevs = kmem_alloc(sizeof (void *) * | |
| 1833 (ndevs + oldndevs), KM_SLEEP); | |
| 1834 for (i = 0; i < oldndevs; i++) | |
| 1835 VERIFY(nvlist_dup(olddevs[i], &newdevs[i], | |
| 1836 KM_SLEEP) == 0); | |
| 1837 for (i = 0; i < ndevs; i++) | |
| 1838 VERIFY(nvlist_dup(devs[i], &newdevs[i + oldndevs], | |
| 1839 KM_SLEEP) == 0); | |
| 1840 | |
| 1841 VERIFY(nvlist_remove(sav->sav_config, config, | |
| 1842 DATA_TYPE_NVLIST_ARRAY) == 0); | |
| 1843 | |
| 1844 VERIFY(nvlist_add_nvlist_array(sav->sav_config, | |
| 1845 config, newdevs, ndevs + oldndevs) == 0); | |
| 1846 for (i = 0; i < oldndevs + ndevs; i++) | |
| 1847 nvlist_free(newdevs[i]); | |
| 1848 kmem_free(newdevs, (oldndevs + ndevs) * sizeof (void *)); | |
| 1849 } else { | |
| 1850 /* | |
| 1851 * Generate a new dev list. | |
| 1852 */ | |
| 1853 VERIFY(nvlist_alloc(&sav->sav_config, NV_UNIQUE_NAME, | |
| 1854 KM_SLEEP) == 0); | |
| 1855 VERIFY(nvlist_add_nvlist_array(sav->sav_config, config, | |
| 1856 devs, ndevs) == 0); | |
| 1857 } | |
| 1858 } | |
| 1859 | |
| 1860 /* | |
| 1861 * Stop and drop level 2 ARC devices | |
| 1862 */ | |
| 1863 void | |
| 1864 spa_l2cache_drop(spa_t *spa) | |
| 1865 { | |
| 1866 vdev_t *vd; | |
| 1867 int i; | |
| 1868 spa_aux_vdev_t *sav = &spa->spa_l2cache; | |
| 1869 | |
| 1870 for (i = 0; i < sav->sav_count; i++) { | |
| 1871 uint64_t pool; | |
| 1872 | |
| 1873 vd = sav->sav_vdevs[i]; | |
| 1874 ASSERT(vd != NULL); | |
| 1875 | |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
1876 if ((spa_mode & FWRITE) && |
|
6643
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
changeset
|
1877 spa_l2cache_exists(vd->vdev_guid, &pool) && pool != 0ULL && |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
changeset
|
1878 l2arc_vdev_present(vd)) { |
| 5450 | 1879 l2arc_remove_vdev(vd); |
| 1880 } | |
| 1881 if (vd->vdev_isl2cache) | |
| 1882 spa_l2cache_remove(vd); | |
| 1883 vdev_clear_stats(vd); | |
| 1884 (void) vdev_close(vd); | |
| 1885 } | |
| 1886 } | |
| 1887 | |
| 2082 | 1888 /* |
| 789 | 1889 * Pool Creation |
| 1890 */ | |
| 1891 int | |
| 5094 | 1892 spa_create(const char *pool, nvlist_t *nvroot, nvlist_t *props, |
|
7184
9508660f9c27
PSARC 2008/223 Pool root file system properties via zpool(1M)
timh
parents:
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diff
changeset
|
1893 const char *history_str, nvlist_t *zplprops) |
| 789 | 1894 { |
| 1895 spa_t *spa; | |
| 5094 | 1896 char *altroot = NULL; |
|
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6398664 zpool detach: missing argument to error message causes core dump
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1601
diff
changeset
|
1897 vdev_t *rvd; |
| 789 | 1898 dsl_pool_t *dp; |
| 1899 dmu_tx_t *tx; | |
| 2082 | 1900 int c, error = 0; |
| 789 | 1901 uint64_t txg = TXG_INITIAL; |
| 5450 | 1902 nvlist_t **spares, **l2cache; |
| 1903 uint_t nspares, nl2cache; | |
| 5094 | 1904 uint64_t version; |
| 789 | 1905 |
| 1906 /* | |
| 1907 * If this pool already exists, return failure. | |
| 1908 */ | |
| 1909 mutex_enter(&spa_namespace_lock); | |
| 1910 if (spa_lookup(pool) != NULL) { | |
| 1911 mutex_exit(&spa_namespace_lock); | |
| 1912 return (EEXIST); | |
| 1913 } | |
| 1914 | |
| 1915 /* | |
| 1916 * Allocate a new spa_t structure. | |
| 1917 */ | |
| 5094 | 1918 (void) nvlist_lookup_string(props, |
| 1919 zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot); | |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
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diff
changeset
|
1920 spa = spa_add(pool, altroot); |
| 789 | 1921 spa_activate(spa); |
| 1922 | |
| 1923 spa->spa_uberblock.ub_txg = txg - 1; | |
| 5094 | 1924 |
| 1925 if (props && (error = spa_prop_validate(spa, props))) { | |
| 1926 spa_unload(spa); | |
| 1927 spa_deactivate(spa); | |
| 1928 spa_remove(spa); | |
|
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1929 mutex_exit(&spa_namespace_lock); |
| 5094 | 1930 return (error); |
| 1931 } | |
| 1932 | |
| 1933 if (nvlist_lookup_uint64(props, zpool_prop_to_name(ZPOOL_PROP_VERSION), | |
| 1934 &version) != 0) | |
| 1935 version = SPA_VERSION; | |
| 1936 ASSERT(version <= SPA_VERSION); | |
| 1937 spa->spa_uberblock.ub_version = version; | |
| 789 | 1938 spa->spa_ubsync = spa->spa_uberblock; |
| 1939 | |
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1940 /* |
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1941 * Create the root vdev. |
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1942 */ |
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1943 spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
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1944 |
| 2082 | 1945 error = spa_config_parse(spa, &rvd, nvroot, NULL, 0, VDEV_ALLOC_ADD); |
| 1946 | |
| 1947 ASSERT(error != 0 || rvd != NULL); | |
| 1948 ASSERT(error != 0 || spa->spa_root_vdev == rvd); | |
| 1949 | |
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1950 if (error == 0 && !zfs_allocatable_devs(nvroot)) |
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1951 error = EINVAL; |
| 2082 | 1952 |
| 1953 if (error == 0 && | |
| 1954 (error = vdev_create(rvd, txg, B_FALSE)) == 0 && | |
| 5450 | 1955 (error = spa_validate_aux(spa, nvroot, txg, |
| 2082 | 1956 VDEV_ALLOC_ADD)) == 0) { |
| 1957 for (c = 0; c < rvd->vdev_children; c++) | |
| 1958 vdev_init(rvd->vdev_child[c], txg); | |
| 1959 vdev_config_dirty(rvd); | |
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1960 } |
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1961 |
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1962 spa_config_exit(spa, SCL_ALL, FTAG); |
| 789 | 1963 |
| 2082 | 1964 if (error != 0) { |
| 789 | 1965 spa_unload(spa); |
| 1966 spa_deactivate(spa); | |
| 1967 spa_remove(spa); | |
| 1968 mutex_exit(&spa_namespace_lock); | |
| 1969 return (error); | |
| 1970 } | |
| 1971 | |
| 2082 | 1972 /* |
| 1973 * Get the list of spares, if specified. | |
| 1974 */ | |
| 1975 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
| 1976 &spares, &nspares) == 0) { | |
| 5450 | 1977 VERIFY(nvlist_alloc(&spa->spa_spares.sav_config, NV_UNIQUE_NAME, |
| 2082 | 1978 KM_SLEEP) == 0); |
| 5450 | 1979 VERIFY(nvlist_add_nvlist_array(spa->spa_spares.sav_config, |
| 2082 | 1980 ZPOOL_CONFIG_SPARES, spares, nspares) == 0); |
|
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1981 spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
| 2082 | 1982 spa_load_spares(spa); |
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1983 spa_config_exit(spa, SCL_ALL, FTAG); |
| 5450 | 1984 spa->spa_spares.sav_sync = B_TRUE; |
| 1985 } | |
| 1986 | |
| 1987 /* | |
| 1988 * Get the list of level 2 cache devices, if specified. | |
| 1989 */ | |
| 1990 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, | |
| 1991 &l2cache, &nl2cache) == 0) { | |
| 1992 VERIFY(nvlist_alloc(&spa->spa_l2cache.sav_config, | |
| 1993 NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
| 1994 VERIFY(nvlist_add_nvlist_array(spa->spa_l2cache.sav_config, | |
| 1995 ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache) == 0); | |
|
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1996 spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
| 5450 | 1997 spa_load_l2cache(spa); |
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1998 spa_config_exit(spa, SCL_ALL, FTAG); |
| 5450 | 1999 spa->spa_l2cache.sav_sync = B_TRUE; |
| 2082 | 2000 } |
| 2001 | |
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2002 spa->spa_dsl_pool = dp = dsl_pool_create(spa, zplprops, txg); |
| 789 | 2003 spa->spa_meta_objset = dp->dp_meta_objset; |
| 2004 | |
| 2005 tx = dmu_tx_create_assigned(dp, txg); | |
| 2006 | |
| 2007 /* | |
| 2008 * Create the pool config object. | |
| 2009 */ | |
| 2010 spa->spa_config_object = dmu_object_alloc(spa->spa_meta_objset, | |
|
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2011 DMU_OT_PACKED_NVLIST, SPA_CONFIG_BLOCKSIZE, |
| 789 | 2012 DMU_OT_PACKED_NVLIST_SIZE, sizeof (uint64_t), tx); |
| 2013 | |
| 1544 | 2014 if (zap_add(spa->spa_meta_objset, |
| 789 | 2015 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CONFIG, |
| 1544 | 2016 sizeof (uint64_t), 1, &spa->spa_config_object, tx) != 0) { |
| 2017 cmn_err(CE_PANIC, "failed to add pool config"); | |
| 2018 } | |
| 789 | 2019 |
| 5094 | 2020 /* Newly created pools with the right version are always deflated. */ |
| 2021 if (version >= SPA_VERSION_RAIDZ_DEFLATE) { | |
| 2022 spa->spa_deflate = TRUE; | |
| 2023 if (zap_add(spa->spa_meta_objset, | |
| 2024 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
| 2025 sizeof (uint64_t), 1, &spa->spa_deflate, tx) != 0) { | |
| 2026 cmn_err(CE_PANIC, "failed to add deflate"); | |
| 2027 } | |
| 2082 | 2028 } |
| 2029 | |
| 789 | 2030 /* |
| 2031 * Create the deferred-free bplist object. Turn off compression | |
| 2032 * because sync-to-convergence takes longer if the blocksize | |
| 2033 * keeps changing. | |
| 2034 */ | |
| 2035 spa->spa_sync_bplist_obj = bplist_create(spa->spa_meta_objset, | |
| 2036 1 << 14, tx); | |
| 2037 dmu_object_set_compress(spa->spa_meta_objset, spa->spa_sync_bplist_obj, | |
| 2038 ZIO_COMPRESS_OFF, tx); | |
| 2039 | |
| 1544 | 2040 if (zap_add(spa->spa_meta_objset, |
| 789 | 2041 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SYNC_BPLIST, |
| 1544 | 2042 sizeof (uint64_t), 1, &spa->spa_sync_bplist_obj, tx) != 0) { |
| 2043 cmn_err(CE_PANIC, "failed to add bplist"); | |
| 2044 } | |
| 789 | 2045 |
| 2926 | 2046 /* |
| 2047 * Create the pool's history object. | |
| 2048 */ | |
| 5094 | 2049 if (version >= SPA_VERSION_ZPOOL_HISTORY) |
| 2050 spa_history_create_obj(spa, tx); | |
| 2051 | |
| 2052 /* | |
| 2053 * Set pool properties. | |
| 2054 */ | |
| 2055 spa->spa_bootfs = zpool_prop_default_numeric(ZPOOL_PROP_BOOTFS); | |
| 2056 spa->spa_delegation = zpool_prop_default_numeric(ZPOOL_PROP_DELEGATION); | |
| 5329 | 2057 spa->spa_failmode = zpool_prop_default_numeric(ZPOOL_PROP_FAILUREMODE); |
| 5094 | 2058 if (props) |
| 2059 spa_sync_props(spa, props, CRED(), tx); | |
| 2926 | 2060 |
| 789 | 2061 dmu_tx_commit(tx); |
| 2062 | |
| 2063 spa->spa_sync_on = B_TRUE; | |
| 2064 txg_sync_start(spa->spa_dsl_pool); | |
| 2065 | |
| 2066 /* | |
| 2067 * We explicitly wait for the first transaction to complete so that our | |
| 2068 * bean counters are appropriately updated. | |
| 2069 */ | |
| 2070 txg_wait_synced(spa->spa_dsl_pool, txg); | |
| 2071 | |
|
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2072 spa_config_sync(spa, B_FALSE, B_TRUE); |
| 789 | 2073 |
| 5094 | 2074 if (version >= SPA_VERSION_ZPOOL_HISTORY && history_str != NULL) |
|
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2075 (void) spa_history_log(spa, history_str, LOG_CMD_POOL_CREATE); |
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2076 |
| 789 | 2077 mutex_exit(&spa_namespace_lock); |
| 2078 | |
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2079 spa->spa_minref = refcount_count(&spa->spa_refcount); |
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2080 |
| 789 | 2081 return (0); |
| 2082 } | |
| 2083 | |
| 2084 /* | |
| 2085 * Import the given pool into the system. We set up the necessary spa_t and | |
| 2086 * then call spa_load() to do the dirty work. | |
| 2087 */ | |
| 6423 | 2088 static int |
| 2089 spa_import_common(const char *pool, nvlist_t *config, nvlist_t *props, | |
|
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2090 boolean_t isroot, boolean_t allowfaulted) |
| 789 | 2091 { |
| 2092 spa_t *spa; | |
| 5094 | 2093 char *altroot = NULL; |
|
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2094 int error, loaderr; |
| 2082 | 2095 nvlist_t *nvroot; |
| 5450 | 2096 nvlist_t **spares, **l2cache; |
| 2097 uint_t nspares, nl2cache; | |
| 789 | 2098 |
| 2099 /* | |
| 2100 * If a pool with this name exists, return failure. | |
| 2101 */ | |
| 2102 mutex_enter(&spa_namespace_lock); | |
|
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2103 if ((spa = spa_lookup(pool)) != NULL) { |
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2104 if (isroot) { |
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2105 /* |
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2106 * Remove the existing root pool from the |
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2107 * namespace so that we can replace it with |
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2108 * the correct config we just read in. |
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2109 */ |
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2110 ASSERT(spa->spa_state == POOL_STATE_UNINITIALIZED); |
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2111 spa_remove(spa); |
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2112 } else { |
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2113 mutex_exit(&spa_namespace_lock); |
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2114 return (EEXIST); |
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2115 } |
| 789 | 2116 } |
| 2117 | |
| 2118 /* | |
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2119 * Create and initialize the spa structure. |
| 789 | 2120 */ |
| 5094 | 2121 (void) nvlist_lookup_string(props, |
| 2122 zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot); | |
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2123 spa = spa_add(pool, altroot); |
| 789 | 2124 spa_activate(spa); |
| 2125 | |
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2126 if (allowfaulted) |
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2127 spa->spa_import_faulted = B_TRUE; |
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2128 spa->spa_is_root = isroot; |
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2129 |
| 789 | 2130 /* |
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2131 * Pass off the heavy lifting to spa_load(). |
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2132 * Pass TRUE for mosconfig (unless this is a root pool) because |
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2133 * the user-supplied config is actually the one to trust when |
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2134 * doing an import. |
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2135 */ |
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2136 loaderr = error = spa_load(spa, config, SPA_LOAD_IMPORT, !isroot); |
| 789 | 2137 |
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2138 spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
| 2082 | 2139 /* |
| 2140 * Toss any existing sparelist, as it doesn't have any validity anymore, | |
| 2141 * and conflicts with spa_has_spare(). | |
| 2142 */ | |
| 6423 | 2143 if (!isroot && spa->spa_spares.sav_config) { |
| 5450 | 2144 nvlist_free(spa->spa_spares.sav_config); |
| 2145 spa->spa_spares.sav_config = NULL; | |
| 2082 | 2146 spa_load_spares(spa); |
| 2147 } | |
| 6423 | 2148 if (!isroot && spa->spa_l2cache.sav_config) { |
| 5450 | 2149 nvlist_free(spa->spa_l2cache.sav_config); |
| 2150 spa->spa_l2cache.sav_config = NULL; | |
| 2151 spa_load_l2cache(spa); | |
| 2152 } | |
| 2082 | 2153 |
| 2154 VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, | |
| 2155 &nvroot) == 0); | |
| 5450 | 2156 if (error == 0) |
| 2157 error = spa_validate_aux(spa, nvroot, -1ULL, VDEV_ALLOC_SPARE); | |
| 2158 if (error == 0) | |
| 2159 error = spa_validate_aux(spa, nvroot, -1ULL, | |
| 2160 VDEV_ALLOC_L2CACHE); | |
|
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2161 spa_config_exit(spa, SCL_ALL, FTAG); |
| 2082 | 2162 |
| 5094 | 2163 if (error != 0 || (props && (error = spa_prop_set(spa, props)))) { |
|
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2164 if (loaderr != 0 && loaderr != EINVAL && allowfaulted) { |
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2165 /* |
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2166 * If we failed to load the pool, but 'allowfaulted' is |
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2167 * set, then manually set the config as if the config |
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2168 * passed in was specified in the cache file. |
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2169 */ |
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2170 error = 0; |
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2171 spa->spa_import_faulted = B_FALSE; |
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2172 if (spa->spa_config == NULL) |
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2173 spa->spa_config = spa_config_generate(spa, |
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2174 NULL, -1ULL, B_TRUE); |
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|
2175 spa_unload(spa); |
|
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6625086 changing cachefile doesn't remove old cache on last user
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diff
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|
2176 spa_deactivate(spa); |
|
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|
2177 spa_config_sync(spa, B_FALSE, B_TRUE); |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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|
2178 } else { |
|
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|
2179 spa_unload(spa); |
|
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|
2180 spa_deactivate(spa); |
|
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diff
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|
2181 spa_remove(spa); |
|
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|
2182 } |
| 789 | 2183 mutex_exit(&spa_namespace_lock); |
| 2184 return (error); | |
| 2185 } | |
| 2186 | |
|
1635
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6398664 zpool detach: missing argument to error message causes core dump
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diff
changeset
|
2187 /* |
| 5450 | 2188 * Override any spares and level 2 cache devices as specified by |
| 2189 * the user, as these may have correct device names/devids, etc. | |
| 2082 | 2190 */ |
| 2191 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
| 2192 &spares, &nspares) == 0) { | |
| 5450 | 2193 if (spa->spa_spares.sav_config) |
| 2194 VERIFY(nvlist_remove(spa->spa_spares.sav_config, | |
| 2082 | 2195 ZPOOL_CONFIG_SPARES, DATA_TYPE_NVLIST_ARRAY) == 0); |
| 2196 else | |
| 5450 | 2197 VERIFY(nvlist_alloc(&spa->spa_spares.sav_config, |
| 2082 | 2198 NV_UNIQUE_NAME, KM_SLEEP) == 0); |
| 5450 | 2199 VERIFY(nvlist_add_nvlist_array(spa->spa_spares.sav_config, |
| 2082 | 2200 ZPOOL_CONFIG_SPARES, spares, nspares) == 0); |
|
7754
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Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
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|
2201 spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
| 2082 | 2202 spa_load_spares(spa); |
|
7754
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diff
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|
2203 spa_config_exit(spa, SCL_ALL, FTAG); |
| 5450 | 2204 spa->spa_spares.sav_sync = B_TRUE; |
| 2205 } | |
| 2206 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, | |
| 2207 &l2cache, &nl2cache) == 0) { | |
| 2208 if (spa->spa_l2cache.sav_config) | |
| 2209 VERIFY(nvlist_remove(spa->spa_l2cache.sav_config, | |
| 2210 ZPOOL_CONFIG_L2CACHE, DATA_TYPE_NVLIST_ARRAY) == 0); | |
| 2211 else | |
| 2212 VERIFY(nvlist_alloc(&spa->spa_l2cache.sav_config, | |
| 2213 NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
| 2214 VERIFY(nvlist_add_nvlist_array(spa->spa_l2cache.sav_config, | |
| 2215 ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache) == 0); | |
|
7754
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6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
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diff
changeset
|
2216 spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
| 5450 | 2217 spa_load_l2cache(spa); |
|
7754
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diff
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|
2218 spa_config_exit(spa, SCL_ALL, FTAG); |
| 5450 | 2219 spa->spa_l2cache.sav_sync = B_TRUE; |
| 2082 | 2220 } |
| 2221 | |
|
6643
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|
2222 if (spa_mode & FWRITE) { |
|
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|
2223 /* |
|
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|
2224 * Update the config cache to include the newly-imported pool. |
|
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|
2225 */ |
| 6423 | 2226 spa_config_update_common(spa, SPA_CONFIG_UPDATE_POOL, isroot); |
|
6643
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|
2227 } |
|
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|
2228 |
|
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|
2229 spa->spa_import_faulted = B_FALSE; |
| 4451 | 2230 mutex_exit(&spa_namespace_lock); |
| 2231 | |
| 789 | 2232 return (0); |
| 2233 } | |
| 2234 | |
| 6423 | 2235 #ifdef _KERNEL |
| 2236 /* | |
| 2237 * Build a "root" vdev for a top level vdev read in from a rootpool | |
| 2238 * device label. | |
| 2239 */ | |
| 2240 static void | |
| 2241 spa_build_rootpool_config(nvlist_t *config) | |
| 2242 { | |
| 2243 nvlist_t *nvtop, *nvroot; | |
| 2244 uint64_t pgid; | |
| 2245 | |
| 2246 /* | |
| 2247 * Add this top-level vdev to the child array. | |
| 2248 */ | |
| 2249 VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvtop) | |
| 2250 == 0); | |
| 2251 VERIFY(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &pgid) | |
| 2252 == 0); | |
| 2253 | |
| 2254 /* | |
| 2255 * Put this pool's top-level vdevs into a root vdev. | |
| 2256 */ | |
| 2257 VERIFY(nvlist_alloc(&nvroot, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
| 2258 VERIFY(nvlist_add_string(nvroot, ZPOOL_CONFIG_TYPE, VDEV_TYPE_ROOT) | |
| 2259 == 0); | |
| 2260 VERIFY(nvlist_add_uint64(nvroot, ZPOOL_CONFIG_ID, 0ULL) == 0); | |
| 2261 VERIFY(nvlist_add_uint64(nvroot, ZPOOL_CONFIG_GUID, pgid) == 0); | |
| 2262 VERIFY(nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN, | |
| 2263 &nvtop, 1) == 0); | |
| 2264 | |
| 2265 /* | |
| 2266 * Replace the existing vdev_tree with the new root vdev in | |
| 2267 * this pool's configuration (remove the old, add the new). | |
| 2268 */ | |
| 2269 VERIFY(nvlist_add_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, nvroot) == 0); | |
| 2270 nvlist_free(nvroot); | |
| 2271 } | |
| 2272 | |
| 2273 /* | |
| 2274 * Get the root pool information from the root disk, then import the root pool | |
| 2275 * during the system boot up time. | |
| 2276 */ | |
|
7539
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6724326 better "can't mountroot" message
Lin Ling <Lin.Ling@Sun.COM>
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7538
diff
changeset
|
2277 extern int vdev_disk_read_rootlabel(char *, char *, nvlist_t **); |
|
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|
2278 |
|
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|
2279 int |
|
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|
2280 spa_check_rootconf(char *devpath, char *devid, nvlist_t **bestconf, |
| 6423 | 2281 uint64_t *besttxg) |
| 2282 { | |
| 2283 nvlist_t *config; | |
| 2284 uint64_t txg; | |
|
7539
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parents:
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diff
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|
2285 int error; |
|
e3f4b4b9f982
6724326 better "can't mountroot" message
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|
2286 |
|
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|
2287 if (error = vdev_disk_read_rootlabel(devpath, devid, &config)) |
|
e3f4b4b9f982
6724326 better "can't mountroot" message
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|
2288 return (error); |
| 6423 | 2289 |
| 2290 VERIFY(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG, &txg) == 0); | |
| 2291 | |
|
7147
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diff
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|
2292 if (bestconf != NULL) |
| 6423 | 2293 *bestconf = config; |
|
7539
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parents:
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diff
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|
2294 else |
|
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changeset
|
2295 nvlist_free(config); |
|
7147
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diff
changeset
|
2296 *besttxg = txg; |
|
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changeset
|
2297 return (0); |
| 6423 | 2298 } |
| 2299 | |
| 2300 boolean_t | |
| 2301 spa_rootdev_validate(nvlist_t *nv) | |
| 2302 { | |
| 2303 uint64_t ival; | |
| 2304 | |
| 2305 if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_OFFLINE, &ival) == 0 || | |
| 2306 nvlist_lookup_uint64(nv, ZPOOL_CONFIG_FAULTED, &ival) == 0 || | |
| 2307 nvlist_lookup_uint64(nv, ZPOOL_CONFIG_REMOVED, &ival) == 0) | |
| 2308 return (B_FALSE); | |
| 2309 | |
| 2310 return (B_TRUE); | |
| 2311 } | |
| 2312 | |
|
7147
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changeset
|
2313 |
|
1e1d75c88283
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diff
changeset
|
2314 /* |
|
1e1d75c88283
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diff
changeset
|
2315 * Given the boot device's physical path or devid, check if the device |
|
1e1d75c88283
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diff
changeset
|
2316 * is in a valid state. If so, return the configuration from the vdev |
|
1e1d75c88283
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diff
changeset
|
2317 * label. |
|
1e1d75c88283
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|
2318 */ |
|
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diff
changeset
|
2319 int |
|
1e1d75c88283
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diff
changeset
|
2320 spa_get_rootconf(char *devpath, char *devid, nvlist_t **bestconf) |
|
1e1d75c88283
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diff
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|
2321 { |
|
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diff
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|
2322 nvlist_t *conf = NULL; |
|
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diff
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|
2323 uint64_t txg = 0; |
|
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|
2324 nvlist_t *nvtop, **child; |
|
1e1d75c88283
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diff
changeset
|
2325 char *type; |
|
1e1d75c88283
6704717 ZFS mirrored root doesn't live up to expectations
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7046
diff
changeset
|
2326 char *bootpath = NULL; |
|
1e1d75c88283
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7046
diff
changeset
|
2327 uint_t children, c; |
|
1e1d75c88283
6704717 ZFS mirrored root doesn't live up to expectations
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parents:
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diff
changeset
|
2328 char *tmp; |
|
7539
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6724326 better "can't mountroot" message
Lin Ling <Lin.Ling@Sun.COM>
parents:
7538
diff
changeset
|
2329 int error; |
|
7147
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|
2330 |
|
1e1d75c88283
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diff
changeset
|
2331 if (devpath && ((tmp = strchr(devpath, ' ')) != NULL)) |
|
1e1d75c88283
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parents:
7046
diff
changeset
|
2332 *tmp = '\0'; |
|
7539
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6724326 better "can't mountroot" message
Lin Ling <Lin.Ling@Sun.COM>
parents:
7538
diff
changeset
|
2333 if (error = spa_check_rootconf(devpath, devid, &conf, &txg)) { |
|
7147
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diff
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|
2334 cmn_err(CE_NOTE, "error reading device label"); |
|
7539
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6724326 better "can't mountroot" message
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|
2335 return (error); |
|
7147
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6704717 ZFS mirrored root doesn't live up to expectations
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changeset
|
2336 } |
|
1e1d75c88283
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|
2337 if (txg == 0) { |
|
1e1d75c88283
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diff
changeset
|
2338 cmn_err(CE_NOTE, "this device is detached"); |
|
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changeset
|
2339 nvlist_free(conf); |
|
1e1d75c88283
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changeset
|
2340 return (EINVAL); |
|
1e1d75c88283
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diff
changeset
|
2341 } |
|
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|
2342 |
|
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|
2343 VERIFY(nvlist_lookup_nvlist(conf, ZPOOL_CONFIG_VDEV_TREE, |
|
1e1d75c88283
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diff
changeset
|
2344 &nvtop) == 0); |
|
1e1d75c88283
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diff
changeset
|
2345 VERIFY(nvlist_lookup_string(nvtop, ZPOOL_CONFIG_TYPE, &type) == 0); |
|
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diff
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|
2346 |
|
1e1d75c88283
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|
2347 if (strcmp(type, VDEV_TYPE_DISK) == 0) { |
|
1e1d75c88283
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diff
changeset
|
2348 if (spa_rootdev_validate(nvtop)) { |
|
1e1d75c88283
6704717 ZFS mirrored root doesn't live up to expectations
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diff
changeset
|
2349 goto out; |
|
1e1d75c88283
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diff
changeset
|
2350 } else { |
|
1e1d75c88283
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changeset
|
2351 nvlist_free(conf); |
|
1e1d75c88283
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changeset
|
2352 return (EINVAL); |
|
1e1d75c88283
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|
2353 } |
|
1e1d75c88283
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|
2354 } |
|
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|
2355 |
|
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|
2356 ASSERT(strcmp(type, VDEV_TYPE_MIRROR) == 0); |
|
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|
2357 |
|
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|
2358 VERIFY(nvlist_lookup_nvlist_array(nvtop, ZPOOL_CONFIG_CHILDREN, |
|
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|
2359 &child, &children) == 0); |
|
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|
2360 |
|
1e1d75c88283
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changeset
|
2361 /* |
|
1e1d75c88283
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|
2362 * Go thru vdevs in the mirror to see if the given device |
|
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|
2363 * has the most recent txg. Only the device with the most |
|
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|
2364 * recent txg has valid information and should be booted. |
|
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|
2365 */ |
|
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|
2366 for (c = 0; c < children; c++) { |
|
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|
2367 char *cdevid, *cpath; |
|
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|
2368 uint64_t tmptxg; |
|
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|
2369 |
|
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|
2370 if (nvlist_lookup_string(child[c], ZPOOL_CONFIG_PHYS_PATH, |
|
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diff
changeset
|
2371 &cpath) != 0) |
|
1e1d75c88283
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diff
changeset
|
2372 return (EINVAL); |
|
1e1d75c88283
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changeset
|
2373 if (nvlist_lookup_string(child[c], ZPOOL_CONFIG_DEVID, |
|
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7046
diff
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|
2374 &cdevid) != 0) |
|
1e1d75c88283
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taylor
parents:
7046
diff
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|
2375 return (EINVAL); |
|
7687
1132fbaf0c27
6750475 can't boot off a mirrored root with a failed disk
Lin Ling <Lin.Ling@Sun.COM>
parents:
7539
diff
changeset
|
2376 if ((spa_check_rootconf(cpath, cdevid, NULL, |
|
1132fbaf0c27
6750475 can't boot off a mirrored root with a failed disk
Lin Ling <Lin.Ling@Sun.COM>
parents:
7539
diff
changeset
|
2377 &tmptxg) == 0) && (tmptxg > txg)) { |
|
7147
1e1d75c88283
6704717 ZFS mirrored root doesn't live up to expectations
taylor
parents:
7046
diff
changeset
|
2378 txg = tmptxg; |
|
1e1d75c88283
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parents:
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diff
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|
2379 VERIFY(nvlist_lookup_string(child[c], |
|
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|
2380 ZPOOL_CONFIG_PATH, &bootpath) == 0); |
|
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diff
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|
2381 } |
|
1e1d75c88283
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|
2382 } |
|
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|
2383 |
|
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|
2384 /* Does the best device match the one we've booted from? */ |
|
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|
2385 if (bootpath) { |
|
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|
2386 cmn_err(CE_NOTE, "try booting from '%s'", bootpath); |
|
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parents:
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|
2387 return (EINVAL); |
|
1e1d75c88283
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parents:
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|
2388 } |
|
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|
2389 out: |
|
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parents:
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diff
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|
2390 *bestconf = conf; |
|
1e1d75c88283
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parents:
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diff
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|
2391 return (0); |
|
1e1d75c88283
6704717 ZFS mirrored root doesn't live up to expectations
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parents:
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diff
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|
2392 } |
|
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diff
changeset
|
2393 |
| 6423 | 2394 /* |
| 2395 * Import a root pool. | |
| 2396 * | |
|
7147
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|
2397 * For x86. devpath_list will consist of devid and/or physpath name of |
|
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diff
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|
2398 * the vdev (e.g. "id1,sd@SSEAGATE..." or "/pci@1f,0/ide@d/disk@0,0:a"). |
|
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diff
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|
2399 * The GRUB "findroot" command will return the vdev we should boot. |
| 6423 | 2400 * |
| 2401 * For Sparc, devpath_list consists the physpath name of the booting device | |
| 2402 * no matter the rootpool is a single device pool or a mirrored pool. | |
| 2403 * e.g. | |
| 2404 * "/pci@1f,0/ide@d/disk@0,0:a" | |
| 2405 */ | |
| 2406 int | |
|
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diff
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|
2407 spa_import_rootpool(char *devpath, char *devid) |
| 6423 | 2408 { |
| 2409 nvlist_t *conf = NULL; | |
| 2410 char *pname; | |
| 2411 int error; | |
| 2412 | |
| 2413 /* | |
| 2414 * Get the vdev pathname and configuation from the most | |
| 2415 * recently updated vdev (highest txg). | |
| 2416 */ | |
|
7147
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diff
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|
2417 if (error = spa_get_rootconf(devpath, devid, &conf)) |
| 6423 | 2418 goto msg_out; |
| 2419 | |
| 2420 /* | |
| 2421 * Add type "root" vdev to the config. | |
| 2422 */ | |
| 2423 spa_build_rootpool_config(conf); | |
| 2424 | |
| 2425 VERIFY(nvlist_lookup_string(conf, ZPOOL_CONFIG_POOL_NAME, &pname) == 0); | |
| 2426 | |
|
6673
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6697301 deadlock between ZFS and devfs can hang system
eschrock
parents:
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diff
changeset
|
2427 /* |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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diff
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|
2428 * We specify 'allowfaulted' for this to be treated like spa_open() |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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|
2429 * instead of spa_import(). This prevents us from marking vdevs as |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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diff
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|
2430 * persistently unavailable, and generates FMA ereports as if it were a |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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diff
changeset
|
2431 * pool open, not import. |
|
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6697301 deadlock between ZFS and devfs can hang system
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diff
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|
2432 */ |
|
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6697301 deadlock between ZFS and devfs can hang system
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diff
changeset
|
2433 error = spa_import_common(pname, conf, NULL, B_TRUE, B_TRUE); |
|
7897
e520d8258820
6748436 inconsistent zpool.cache in boot_archive could panic a zfs root filesystem upon boot-up
Lin Ling <Lin.Ling@Sun.COM>
parents:
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diff
changeset
|
2434 ASSERT(error != EEXIST); |
| 6423 | 2435 |
| 2436 nvlist_free(conf); | |
| 2437 return (error); | |
| 2438 | |
| 2439 msg_out: | |
|
7147
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diff
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|
2440 cmn_err(CE_NOTE, "\n" |
| 6423 | 2441 " *************************************************** \n" |
| 2442 " * This device is not bootable! * \n" | |
| 2443 " * It is either offlined or detached or faulted. * \n" | |
| 2444 " * Please try to boot from a different device. * \n" | |
|
7147
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diff
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|
2445 " *************************************************** "); |
| 6423 | 2446 |
| 2447 return (error); | |
| 2448 } | |
| 2449 #endif | |
| 2450 | |
| 2451 /* | |
| 2452 * Import a non-root pool into the system. | |
| 2453 */ | |
| 2454 int | |
| 2455 spa_import(const char *pool, nvlist_t *config, nvlist_t *props) | |
| 2456 { | |
|
6643
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
changeset
|
2457 return (spa_import_common(pool, config, props, B_FALSE, B_FALSE)); |
| 6423 | 2458 } |
| 2459 | |
|
6643
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
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|
2460 int |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
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6615
diff
changeset
|
2461 spa_import_faulted(const char *pool, nvlist_t *config, nvlist_t *props) |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
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diff
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|
2462 { |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
changeset
|
2463 return (spa_import_common(pool, config, props, B_FALSE, B_TRUE)); |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
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|
2464 } |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
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6615
diff
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|
2465 |
|
3a34b0dbb107
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diff
changeset
|
2466 |
| 789 | 2467 /* |
| 2468 * This (illegal) pool name is used when temporarily importing a spa_t in order | |
| 2469 * to get the vdev stats associated with the imported devices. | |
| 2470 */ | |
| 2471 #define TRYIMPORT_NAME "$import" | |
| 2472 | |
| 2473 nvlist_t * | |
| 2474 spa_tryimport(nvlist_t *tryconfig) | |
| 2475 { | |
| 2476 nvlist_t *config = NULL; | |
| 2477 char *poolname; | |
| 2478 spa_t *spa; | |
| 2479 uint64_t state; | |
| 2480 | |
| 2481 if (nvlist_lookup_string(tryconfig, ZPOOL_CONFIG_POOL_NAME, &poolname)) | |
| 2482 return (NULL); | |
| 2483 | |
| 2484 if (nvlist_lookup_uint64(tryconfig, ZPOOL_CONFIG_POOL_STATE, &state)) | |
| 2485 return (NULL); | |
| 2486 | |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2487 /* |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2488 * Create and initialize the spa structure. |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2489 */ |
| 789 | 2490 mutex_enter(&spa_namespace_lock); |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2491 spa = spa_add(TRYIMPORT_NAME, NULL); |
| 789 | 2492 spa_activate(spa); |
| 2493 | |
| 2494 /* | |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2495 * Pass off the heavy lifting to spa_load(). |
| 1732 | 2496 * Pass TRUE for mosconfig because the user-supplied config |
| 2497 * is actually the one to trust when doing an import. | |
| 789 | 2498 */ |
| 1732 | 2499 (void) spa_load(spa, tryconfig, SPA_LOAD_TRYIMPORT, B_TRUE); |
| 789 | 2500 |
| 2501 /* | |
| 2502 * If 'tryconfig' was at least parsable, return the current config. | |
| 2503 */ | |
| 2504 if (spa->spa_root_vdev != NULL) { | |
| 2505 config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); | |
| 2506 VERIFY(nvlist_add_string(config, ZPOOL_CONFIG_POOL_NAME, | |
| 2507 poolname) == 0); | |
| 2508 VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_POOL_STATE, | |
| 2509 state) == 0); | |
|
3975
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
2510 VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_TIMESTAMP, |
|
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
2511 spa->spa_uberblock.ub_timestamp) == 0); |
| 2082 | 2512 |
| 2513 /* | |
| 6423 | 2514 * If the bootfs property exists on this pool then we |
| 2515 * copy it out so that external consumers can tell which | |
| 2516 * pools are bootable. | |
| 2517 */ | |
| 2518 if (spa->spa_bootfs) { | |
| 2519 char *tmpname = kmem_alloc(MAXPATHLEN, KM_SLEEP); | |
| 2520 | |
| 2521 /* | |
| 2522 * We have to play games with the name since the | |
| 2523 * pool was opened as TRYIMPORT_NAME. | |
| 2524 */ | |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
2525 if (dsl_dsobj_to_dsname(spa_name(spa), |
| 6423 | 2526 spa->spa_bootfs, tmpname) == 0) { |
| 2527 char *cp; | |
| 2528 char *dsname = kmem_alloc(MAXPATHLEN, KM_SLEEP); | |
| 2529 | |
| 2530 cp = strchr(tmpname, '/'); | |
| 2531 if (cp == NULL) { | |
| 2532 (void) strlcpy(dsname, tmpname, | |
| 2533 MAXPATHLEN); | |
| 2534 } else { | |
| 2535 (void) snprintf(dsname, MAXPATHLEN, | |
| 2536 "%s/%s", poolname, ++cp); | |
| 2537 } | |
| 2538 VERIFY(nvlist_add_string(config, | |
| 2539 ZPOOL_CONFIG_BOOTFS, dsname) == 0); | |
| 2540 kmem_free(dsname, MAXPATHLEN); | |
| 2541 } | |
| 2542 kmem_free(tmpname, MAXPATHLEN); | |
| 2543 } | |
| 2544 | |
| 2545 /* | |
| 5450 | 2546 * Add the list of hot spares and level 2 cache devices. |
| 2082 | 2547 */ |
| 2548 spa_add_spares(spa, config); | |
| 5450 | 2549 spa_add_l2cache(spa, config); |
| 789 | 2550 } |
| 2551 | |
| 2552 spa_unload(spa); | |
| 2553 spa_deactivate(spa); | |
| 2554 spa_remove(spa); | |
| 2555 mutex_exit(&spa_namespace_lock); | |
| 2556 | |
| 2557 return (config); | |
| 2558 } | |
| 2559 | |
| 2560 /* | |
| 2561 * Pool export/destroy | |
| 2562 * | |
| 2563 * The act of destroying or exporting a pool is very simple. We make sure there | |
| 2564 * is no more pending I/O and any references to the pool are gone. Then, we | |
| 2565 * update the pool state and sync all the labels to disk, removing the | |
|
8211
32722be6ad3b
6775357 ZFS should have a way to export a pool without touching anything
George Wilson <George.Wilson@Sun.COM>
parents:
7897
diff
changeset
|
2566 * configuration from the cache afterwards. If the 'hardforce' flag is set, then |
|
32722be6ad3b
6775357 ZFS should have a way to export a pool without touching anything
George Wilson <George.Wilson@Sun.COM>
parents:
7897
diff
changeset
|
2567 * we don't sync the labels or remove the configuration cache. |
| 789 | 2568 */ |
| 2569 static int | |
|
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
|
2570 spa_export_common(char *pool, int new_state, nvlist_t **oldconfig, |
|
8211
32722be6ad3b
6775357 ZFS should have a way to export a pool without touching anything
George Wilson <George.Wilson@Sun.COM>
parents:
7897
diff
changeset
|
2571 boolean_t force, boolean_t hardforce) |
| 789 | 2572 { |
| 2573 spa_t *spa; | |
| 2574 | |
|
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2575 if (oldconfig) |
|
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2576 *oldconfig = NULL; |
|
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2577 |
| 789 | 2578 if (!(spa_mode & FWRITE)) |
| 2579 return (EROFS); | |
| 2580 | |
| 2581 mutex_enter(&spa_namespace_lock); | |
| 2582 if ((spa = spa_lookup(pool)) == NULL) { | |
| 2583 mutex_exit(&spa_namespace_lock); | |
| 2584 return (ENOENT); | |
| 2585 } | |
| 2586 | |
| 2587 /* | |
| 1544 | 2588 * Put a hold on the pool, drop the namespace lock, stop async tasks, |
| 2589 * reacquire the namespace lock, and see if we can export. | |
| 2590 */ | |
| 2591 spa_open_ref(spa, FTAG); | |
| 2592 mutex_exit(&spa_namespace_lock); | |
| 2593 spa_async_suspend(spa); | |
| 2594 mutex_enter(&spa_namespace_lock); | |
| 2595 spa_close(spa, FTAG); | |
| 2596 | |
| 2597 /* | |
| 789 | 2598 * The pool will be in core if it's openable, |
| 2599 * in which case we can modify its state. | |
| 2600 */ | |
| 2601 if (spa->spa_state != POOL_STATE_UNINITIALIZED && spa->spa_sync_on) { | |
| 2602 /* | |
| 2603 * Objsets may be open only because they're dirty, so we | |
| 2604 * have to force it to sync before checking spa_refcnt. | |
| 2605 */ | |
| 2606 txg_wait_synced(spa->spa_dsl_pool, 0); | |
| 2607 | |
| 1544 | 2608 /* |
| 2609 * A pool cannot be exported or destroyed if there are active | |
| 2610 * references. If we are resetting a pool, allow references by | |
| 2611 * fault injection handlers. | |
| 2612 */ | |
| 2613 if (!spa_refcount_zero(spa) || | |
| 2614 (spa->spa_inject_ref != 0 && | |
| 2615 new_state != POOL_STATE_UNINITIALIZED)) { | |
| 2616 spa_async_resume(spa); | |
| 789 | 2617 mutex_exit(&spa_namespace_lock); |
| 2618 return (EBUSY); | |
| 2619 } | |
| 2620 | |
| 2621 /* | |
|
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
|
2622 * A pool cannot be exported if it has an active shared spare. |
|
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
|
2623 * This is to prevent other pools stealing the active spare |
|
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
|
2624 * from an exported pool. At user's own will, such pool can |
|
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
|
2625 * be forcedly exported. |
|
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
|
2626 */ |
|
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
|
2627 if (!force && new_state == POOL_STATE_EXPORTED && |
|
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
|
2628 spa_has_active_shared_spare(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
|
2629 spa_async_resume(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
|
2630 mutex_exit(&spa_namespace_lock); |
|
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
|
2631 return (EXDEV); |
|
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
|
2632 } |
|
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
|
2633 |
|
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
|
2634 /* |
| 789 | 2635 * We want this to be reflected on every label, |
| 2636 * so mark them all dirty. spa_unload() will do the | |
| 2637 * final sync that pushes these changes out. | |
| 2638 */ | |
|
8211
32722be6ad3b
6775357 ZFS should have a way to export a pool without touching anything
George Wilson <George.Wilson@Sun.COM>
parents:
7897
diff
changeset
|
2639 if (new_state != POOL_STATE_UNINITIALIZED && !hardforce) { |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
2640 spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
| 1544 | 2641 spa->spa_state = new_state; |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2642 spa->spa_final_txg = spa_last_synced_txg(spa) + 1; |
| 1544 | 2643 vdev_config_dirty(spa->spa_root_vdev); |
|
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diff
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|
2644 spa_config_exit(spa, SCL_ALL, FTAG); |
| 1544 | 2645 } |
| 789 | 2646 } |
| 2647 | |
| 4451 | 2648 spa_event_notify(spa, NULL, ESC_ZFS_POOL_DESTROY); |
| 2649 | |
| 789 | 2650 if (spa->spa_state != POOL_STATE_UNINITIALIZED) { |
| 2651 spa_unload(spa); | |
| 2652 spa_deactivate(spa); | |
| 2653 } | |
| 2654 | |
|
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6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
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1760
diff
changeset
|
2655 if (oldconfig && spa->spa_config) |
|
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diff
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|
2656 VERIFY(nvlist_dup(spa->spa_config, oldconfig, 0) == 0); |
|
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billm
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|
2657 |
| 1544 | 2658 if (new_state != POOL_STATE_UNINITIALIZED) { |
|
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George Wilson <George.Wilson@Sun.COM>
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7897
diff
changeset
|
2659 if (!hardforce) |
|
32722be6ad3b
6775357 ZFS should have a way to export a pool without touching anything
George Wilson <George.Wilson@Sun.COM>
parents:
7897
diff
changeset
|
2660 spa_config_sync(spa, B_TRUE, B_TRUE); |
| 1544 | 2661 spa_remove(spa); |
| 2662 } | |
| 789 | 2663 mutex_exit(&spa_namespace_lock); |
| 2664 | |
| 2665 return (0); | |
| 2666 } | |
| 2667 | |
| 2668 /* | |
| 2669 * Destroy a storage pool. | |
| 2670 */ | |
| 2671 int | |
| 2672 spa_destroy(char *pool) | |
| 2673 { | |
|
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32722be6ad3b
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7897
diff
changeset
|
2674 return (spa_export_common(pool, POOL_STATE_DESTROYED, NULL, |
|
32722be6ad3b
6775357 ZFS should have a way to export a pool without touching anything
George Wilson <George.Wilson@Sun.COM>
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diff
changeset
|
2675 B_FALSE, B_FALSE)); |
| 789 | 2676 } |
| 2677 | |
| 2678 /* | |
| 2679 * Export a storage pool. | |
| 2680 */ | |
| 2681 int | |
|
8211
32722be6ad3b
6775357 ZFS should have a way to export a pool without touching anything
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parents:
7897
diff
changeset
|
2682 spa_export(char *pool, nvlist_t **oldconfig, boolean_t force, |
|
32722be6ad3b
6775357 ZFS should have a way to export a pool without touching anything
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parents:
7897
diff
changeset
|
2683 boolean_t hardforce) |
| 789 | 2684 { |
|
8211
32722be6ad3b
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7897
diff
changeset
|
2685 return (spa_export_common(pool, POOL_STATE_EXPORTED, oldconfig, |
|
32722be6ad3b
6775357 ZFS should have a way to export a pool without touching anything
George Wilson <George.Wilson@Sun.COM>
parents:
7897
diff
changeset
|
2686 force, hardforce)); |
| 789 | 2687 } |
| 2688 | |
| 2689 /* | |
| 1544 | 2690 * Similar to spa_export(), this unloads the spa_t without actually removing it |
| 2691 * from the namespace in any way. | |
| 2692 */ | |
| 2693 int | |
| 2694 spa_reset(char *pool) | |
| 2695 { | |
|
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
|
2696 return (spa_export_common(pool, POOL_STATE_UNINITIALIZED, NULL, |
|
8211
32722be6ad3b
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George Wilson <George.Wilson@Sun.COM>
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diff
changeset
|
2697 B_FALSE, B_FALSE)); |
| 1544 | 2698 } |
| 2699 | |
| 2700 /* | |
| 789 | 2701 * ========================================================================== |
| 2702 * Device manipulation | |
| 2703 * ========================================================================== | |
| 2704 */ | |
| 2705 | |
| 2706 /* | |
| 4527 | 2707 * Add a device to a storage pool. |
| 789 | 2708 */ |
| 2709 int | |
| 2710 spa_vdev_add(spa_t *spa, nvlist_t *nvroot) | |
| 2711 { | |
| 2712 uint64_t txg; | |
|
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6398664 zpool detach: missing argument to error message causes core dump
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1601
diff
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|
2713 int c, error; |
| 789 | 2714 vdev_t *rvd = spa->spa_root_vdev; |
|
1585
4ad213e858a9
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1544
diff
changeset
|
2715 vdev_t *vd, *tvd; |
| 5450 | 2716 nvlist_t **spares, **l2cache; |
| 2717 uint_t nspares, nl2cache; | |
| 789 | 2718 |
| 2719 txg = spa_vdev_enter(spa); | |
| 2720 | |
| 2082 | 2721 if ((error = spa_config_parse(spa, &vd, nvroot, NULL, 0, |
| 2722 VDEV_ALLOC_ADD)) != 0) | |
| 2723 return (spa_vdev_exit(spa, NULL, txg, error)); | |
| 2724 | |
|
7754
b80e4842ad54
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diff
changeset
|
2725 spa->spa_pending_vdev = vd; /* spa_vdev_exit() will clear this */ |
| 789 | 2726 |
| 5450 | 2727 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, &spares, |
| 2728 &nspares) != 0) | |
| 2082 | 2729 nspares = 0; |
| 2730 | |
| 5450 | 2731 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, &l2cache, |
| 2732 &nl2cache) != 0) | |
| 2733 nl2cache = 0; | |
| 2734 | |
|
7754
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Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
2735 if (vd->vdev_children == 0 && nspares == 0 && nl2cache == 0) |
| 2082 | 2736 return (spa_vdev_exit(spa, vd, txg, EINVAL)); |
|
7754
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diff
changeset
|
2737 |
|
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diff
changeset
|
2738 if (vd->vdev_children != 0 && |
|
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
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diff
changeset
|
2739 (error = vdev_create(vd, txg, B_FALSE)) != 0) |
|
b80e4842ad54
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Jeff Bonwick <Jeff.Bonwick@Sun.COM>
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diff
changeset
|
2740 return (spa_vdev_exit(spa, vd, txg, error)); |
| 2082 | 2741 |
|
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6393525 vdev_reopen() should verify that it's still the same device
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diff
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|
2742 /* |
| 5450 | 2743 * We must validate the spares and l2cache devices after checking the |
| 2744 * children. Otherwise, vdev_inuse() will blindly overwrite the spare. | |
|
3377
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diff
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|
2745 */ |
|
7754
b80e4842ad54
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Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
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diff
changeset
|
2746 if ((error = spa_validate_aux(spa, nvroot, txg, VDEV_ALLOC_ADD)) != 0) |
|
3377
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6393525 vdev_reopen() should verify that it's still the same device
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|
2747 return (spa_vdev_exit(spa, vd, txg, error)); |
|
a2fa338530c1
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|
2748 |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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|
2749 /* |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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parents:
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diff
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|
2750 * Transfer each new top-level vdev from vd to rvd. |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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diff
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|
2751 */ |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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diff
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|
2752 for (c = 0; c < vd->vdev_children; c++) { |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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|
2753 tvd = vd->vdev_child[c]; |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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diff
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|
2754 vdev_remove_child(vd, tvd); |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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diff
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|
2755 tvd->vdev_id = rvd->vdev_children; |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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diff
changeset
|
2756 vdev_add_child(rvd, tvd); |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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diff
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|
2757 vdev_config_dirty(tvd); |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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diff
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|
2758 } |
|
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6393525 vdev_reopen() should verify that it's still the same device
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diff
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|
2759 |
| 2082 | 2760 if (nspares != 0) { |
| 5450 | 2761 spa_set_aux_vdevs(&spa->spa_spares, spares, nspares, |
| 2762 ZPOOL_CONFIG_SPARES); | |
| 2082 | 2763 spa_load_spares(spa); |
| 5450 | 2764 spa->spa_spares.sav_sync = B_TRUE; |
| 2765 } | |
| 2766 | |
| 2767 if (nl2cache != 0) { | |
| 2768 spa_set_aux_vdevs(&spa->spa_l2cache, l2cache, nl2cache, | |
| 2769 ZPOOL_CONFIG_L2CACHE); | |
| 2770 spa_load_l2cache(spa); | |
| 2771 spa->spa_l2cache.sav_sync = B_TRUE; | |
| 789 | 2772 } |
| 2773 | |
| 2774 /* | |
|
1585
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bonwick
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1544
diff
changeset
|
2775 * We have to be careful when adding new vdevs to an existing pool. |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
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1544
diff
changeset
|
2776 * If other threads start allocating from these vdevs before we |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
2777 * sync the config cache, and we lose power, then upon reboot we may |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
2778 * 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
bonwick
parents:
1544
diff
changeset
|
2779 * can't translate. Therefore, we first add the vdevs without |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
2780 * initializing metaslabs; sync the config cache (via spa_vdev_exit()); |
|
1635
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6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2781 * and then let spa_config_update() initialize the new metaslabs. |
|
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
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1544
diff
changeset
|
2782 * |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
2783 * spa_load() checks for added-but-not-initialized vdevs, so that |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
2784 * if we lose power at any point in this sequence, the remaining |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
2785 * steps will be completed the next time we load the pool. |
| 789 | 2786 */ |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2787 (void) spa_vdev_exit(spa, vd, txg, 0); |
|
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
2788 |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
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1601
diff
changeset
|
2789 mutex_enter(&spa_namespace_lock); |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
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diff
changeset
|
2790 spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2791 mutex_exit(&spa_namespace_lock); |
| 789 | 2792 |
|
1635
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diff
changeset
|
2793 return (0); |
| 789 | 2794 } |
| 2795 | |
| 2796 /* | |
| 2797 * Attach a device to a mirror. The arguments are the path to any device | |
| 2798 * in the mirror, and the nvroot for the new device. If the path specifies | |
| 2799 * a device that is not mirrored, we automatically insert the mirror vdev. | |
| 2800 * | |
| 2801 * If 'replacing' is specified, the new device is intended to replace the | |
| 2802 * existing device; in this case the two devices are made into their own | |
| 4451 | 2803 * mirror using the 'replacing' vdev, which is functionally identical to |
| 789 | 2804 * the mirror vdev (it actually reuses all the same ops) but has a few |
| 2805 * extra rules: you can't attach to it after it's been created, and upon | |
| 2806 * completion of resilvering, the first disk (the one being replaced) | |
| 2807 * is automatically detached. | |
| 2808 */ | |
| 2809 int | |
| 1544 | 2810 spa_vdev_attach(spa_t *spa, uint64_t guid, nvlist_t *nvroot, int replacing) |
| 789 | 2811 { |
| 2812 uint64_t txg, open_txg; | |
| 2813 vdev_t *rvd = spa->spa_root_vdev; | |
| 2814 vdev_t *oldvd, *newvd, *newrootvd, *pvd, *tvd; | |
| 2082 | 2815 vdev_ops_t *pvops; |
|
7313
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6734585 zpool history should log when a spare device becomes active
Eric Kustarz <Eric.Kustarz@Sun.COM>
parents:
7294
diff
changeset
|
2816 dmu_tx_t *tx; |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
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7294
diff
changeset
|
2817 char *oldvdpath, *newvdpath; |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
Eric Kustarz <Eric.Kustarz@Sun.COM>
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7294
diff
changeset
|
2818 int newvd_isspare; |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
Eric Kustarz <Eric.Kustarz@Sun.COM>
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7294
diff
changeset
|
2819 int error; |
| 789 | 2820 |
| 2821 txg = spa_vdev_enter(spa); | |
| 2822 | |
|
6643
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6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
changeset
|
2823 oldvd = spa_lookup_by_guid(spa, guid, B_FALSE); |
| 789 | 2824 |
| 2825 if (oldvd == NULL) | |
| 2826 return (spa_vdev_exit(spa, NULL, txg, ENODEV)); | |
| 2827 | |
|
1585
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1544
diff
changeset
|
2828 if (!oldvd->vdev_ops->vdev_op_leaf) |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
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1544
diff
changeset
|
2829 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
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diff
changeset
|
2830 |
| 789 | 2831 pvd = oldvd->vdev_parent; |
| 2832 | |
| 2082 | 2833 if ((error = spa_config_parse(spa, &newrootvd, nvroot, NULL, 0, |
| 4451 | 2834 VDEV_ALLOC_ADD)) != 0) |
| 2835 return (spa_vdev_exit(spa, NULL, txg, EINVAL)); | |
| 2836 | |
| 2837 if (newrootvd->vdev_children != 1) | |
| 789 | 2838 return (spa_vdev_exit(spa, newrootvd, txg, EINVAL)); |
| 2839 | |
| 2840 newvd = newrootvd->vdev_child[0]; | |
| 2841 | |
| 2842 if (!newvd->vdev_ops->vdev_op_leaf) | |
| 2843 return (spa_vdev_exit(spa, newrootvd, txg, EINVAL)); | |
| 2844 | |
| 2082 | 2845 if ((error = vdev_create(newrootvd, txg, replacing)) != 0) |
| 789 | 2846 return (spa_vdev_exit(spa, newrootvd, txg, error)); |
| 2847 | |
| 4527 | 2848 /* |
| 2849 * Spares can't replace logs | |
| 2850 */ | |
|
7326
a3c803100a09
6713886 hot spares of mirrored log devices should not be allowed
Eric Schrock <Eric.Schrock@Sun.COM>
parents:
7313
diff
changeset
|
2851 if (oldvd->vdev_top->vdev_islog && newvd->vdev_isspare) |
| 4527 | 2852 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
| 2853 | |
| 2082 | 2854 if (!replacing) { |
| 2855 /* | |
| 2856 * For attach, the only allowable parent is a mirror or the root | |
| 2857 * vdev. | |
| 2858 */ | |
| 2859 if (pvd->vdev_ops != &vdev_mirror_ops && | |
| 2860 pvd->vdev_ops != &vdev_root_ops) | |
| 2861 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
| 2862 | |
| 2863 pvops = &vdev_mirror_ops; | |
| 2864 } else { | |
| 2865 /* | |
| 2866 * Active hot spares can only be replaced by inactive hot | |
| 2867 * spares. | |
| 2868 */ | |
| 2869 if (pvd->vdev_ops == &vdev_spare_ops && | |
| 2870 pvd->vdev_child[1] == oldvd && | |
| 2871 !spa_has_spare(spa, newvd->vdev_guid)) | |
| 2872 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
| 2873 | |
| 2874 /* | |
| 2875 * If the source is a hot spare, and the parent isn't already a | |
| 2876 * spare, then we want to create a new hot spare. Otherwise, we | |
|
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6393525 vdev_reopen() should verify that it's still the same device
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3290
diff
changeset
|
2877 * want to create a replacing vdev. The user is not allowed to |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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3290
diff
changeset
|
2878 * attach to a spared vdev child unless the 'isspare' state is |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
2879 * the same (spare replaces spare, non-spare replaces |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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3290
diff
changeset
|
2880 * non-spare). |
| 2082 | 2881 */ |
| 2882 if (pvd->vdev_ops == &vdev_replacing_ops) | |
| 2883 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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3290
diff
changeset
|
2884 else if (pvd->vdev_ops == &vdev_spare_ops && |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
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diff
changeset
|
2885 newvd->vdev_isspare != oldvd->vdev_isspare) |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
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diff
changeset
|
2886 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
| 2082 | 2887 else if (pvd->vdev_ops != &vdev_spare_ops && |
| 2888 newvd->vdev_isspare) | |
| 2889 pvops = &vdev_spare_ops; | |
| 2890 else | |
| 2891 pvops = &vdev_replacing_ops; | |
| 2892 } | |
| 2893 | |
|
1175
759d20c7e57b
6366265 attach/replace should allow a new device size at least the min of all devs in a mirror/raidz
lling
parents:
797
diff
changeset
|
2894 /* |
|
759d20c7e57b
6366265 attach/replace should allow a new device size at least the min of all devs in a mirror/raidz
lling
parents:
797
diff
changeset
|
2895 * Compare the new device size with the replaceable/attachable |
|
759d20c7e57b
6366265 attach/replace should allow a new device size at least the min of all devs in a mirror/raidz
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parents:
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diff
changeset
|
2896 * device size. |
|
759d20c7e57b
6366265 attach/replace should allow a new device size at least the min of all devs in a mirror/raidz
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parents:
797
diff
changeset
|
2897 */ |
|
759d20c7e57b
6366265 attach/replace should allow a new device size at least the min of all devs in a mirror/raidz
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parents:
797
diff
changeset
|
2898 if (newvd->vdev_psize < vdev_get_rsize(oldvd)) |
| 789 | 2899 return (spa_vdev_exit(spa, newrootvd, txg, EOVERFLOW)); |
| 2900 | |
| 1732 | 2901 /* |
| 2902 * The new device cannot have a higher alignment requirement | |
| 2903 * than the top-level vdev. | |
| 2904 */ | |
| 2905 if (newvd->vdev_ashift > oldvd->vdev_top->vdev_ashift) | |
| 789 | 2906 return (spa_vdev_exit(spa, newrootvd, txg, EDOM)); |
| 2907 | |
| 2908 /* | |
| 2909 * If this is an in-place replacement, update oldvd's path and devid | |
| 2910 * to make it distinguishable from newvd, and unopenable from now on. | |
| 2911 */ | |
| 2912 if (strcmp(oldvd->vdev_path, newvd->vdev_path) == 0) { | |
| 2913 spa_strfree(oldvd->vdev_path); | |
| 2914 oldvd->vdev_path = kmem_alloc(strlen(newvd->vdev_path) + 5, | |
| 2915 KM_SLEEP); | |
| 2916 (void) sprintf(oldvd->vdev_path, "%s/%s", | |
| 2917 newvd->vdev_path, "old"); | |
| 2918 if (oldvd->vdev_devid != NULL) { | |
| 2919 spa_strfree(oldvd->vdev_devid); | |
| 2920 oldvd->vdev_devid = NULL; | |
| 2921 } | |
| 2922 } | |
| 2923 | |
| 2924 /* | |
| 2082 | 2925 * If the parent is not a mirror, or if we're replacing, insert the new |
| 2926 * mirror/replacing/spare vdev above oldvd. | |
| 789 | 2927 */ |
| 2928 if (pvd->vdev_ops != pvops) | |
| 2929 pvd = vdev_add_parent(oldvd, pvops); | |
| 2930 | |
| 2931 ASSERT(pvd->vdev_top->vdev_parent == rvd); | |
| 2932 ASSERT(pvd->vdev_ops == pvops); | |
| 2933 ASSERT(oldvd->vdev_parent == pvd); | |
| 2934 | |
| 2935 /* | |
| 2936 * Extract the new device from its root and add it to pvd. | |
| 2937 */ | |
| 2938 vdev_remove_child(newrootvd, newvd); | |
| 2939 newvd->vdev_id = pvd->vdev_children; | |
| 2940 vdev_add_child(pvd, newvd); | |
| 2941 | |
| 1544 | 2942 /* |
| 2943 * If newvd is smaller than oldvd, but larger than its rsize, | |
| 2944 * the addition of newvd may have decreased our parent's asize. | |
| 2945 */ | |
| 2946 pvd->vdev_asize = MIN(pvd->vdev_asize, newvd->vdev_asize); | |
| 2947 | |
| 789 | 2948 tvd = newvd->vdev_top; |
| 2949 ASSERT(pvd->vdev_top == tvd); | |
| 2950 ASSERT(tvd->vdev_parent == rvd); | |
| 2951 | |
| 2952 vdev_config_dirty(tvd); | |
| 2953 | |
| 2954 /* | |
| 2955 * Set newvd's DTL to [TXG_INITIAL, open_txg]. It will propagate | |
| 2956 * upward when spa_vdev_exit() calls vdev_dtl_reassess(). | |
| 2957 */ | |
| 2958 open_txg = txg + TXG_CONCURRENT_STATES - 1; | |
| 2959 | |
| 2960 mutex_enter(&newvd->vdev_dtl_lock); | |
| 2961 space_map_add(&newvd->vdev_dtl_map, TXG_INITIAL, | |
| 2962 open_txg - TXG_INITIAL + 1); | |
| 2963 mutex_exit(&newvd->vdev_dtl_lock); | |
| 2964 | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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diff
changeset
|
2965 if (newvd->vdev_isspare) |
|
a2fa338530c1
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diff
changeset
|
2966 spa_spare_activate(newvd); |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
2967 oldvdpath = spa_strdup(oldvd->vdev_path); |
|
b80e4842ad54
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Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
2968 newvdpath = spa_strdup(newvd->vdev_path); |
|
7313
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6734585 zpool history should log when a spare device becomes active
Eric Kustarz <Eric.Kustarz@Sun.COM>
parents:
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diff
changeset
|
2969 newvd_isspare = newvd->vdev_isspare; |
| 1544 | 2970 |
| 789 | 2971 /* |
| 2972 * Mark newvd's DTL dirty in this txg. | |
| 2973 */ | |
| 1732 | 2974 vdev_dirty(tvd, VDD_DTL, newvd, txg); |
| 789 | 2975 |
| 2976 (void) spa_vdev_exit(spa, newrootvd, open_txg, 0); | |
| 2977 | |
|
7313
99e2110471bb
6734585 zpool history should log when a spare device becomes active
Eric Kustarz <Eric.Kustarz@Sun.COM>
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diff
changeset
|
2978 tx = dmu_tx_create_dd(spa_get_dsl(spa)->dp_mos_dir); |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
Eric Kustarz <Eric.Kustarz@Sun.COM>
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diff
changeset
|
2979 if (dmu_tx_assign(tx, TXG_WAIT) == 0) { |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
Eric Kustarz <Eric.Kustarz@Sun.COM>
parents:
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diff
changeset
|
2980 spa_history_internal_log(LOG_POOL_VDEV_ATTACH, spa, tx, |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
Eric Kustarz <Eric.Kustarz@Sun.COM>
parents:
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diff
changeset
|
2981 CRED(), "%s vdev=%s %s vdev=%s", |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
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parents:
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diff
changeset
|
2982 replacing && newvd_isspare ? "spare in" : |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
Eric Kustarz <Eric.Kustarz@Sun.COM>
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diff
changeset
|
2983 replacing ? "replace" : "attach", newvdpath, |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
Eric Kustarz <Eric.Kustarz@Sun.COM>
parents:
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diff
changeset
|
2984 replacing ? "for" : "to", oldvdpath); |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
Eric Kustarz <Eric.Kustarz@Sun.COM>
parents:
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diff
changeset
|
2985 dmu_tx_commit(tx); |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
Eric Kustarz <Eric.Kustarz@Sun.COM>
parents:
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diff
changeset
|
2986 } else { |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
Eric Kustarz <Eric.Kustarz@Sun.COM>
parents:
7294
diff
changeset
|
2987 dmu_tx_abort(tx); |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
Eric Kustarz <Eric.Kustarz@Sun.COM>
parents:
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diff
changeset
|
2988 } |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
Eric Kustarz <Eric.Kustarz@Sun.COM>
parents:
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diff
changeset
|
2989 |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
Eric Kustarz <Eric.Kustarz@Sun.COM>
parents:
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diff
changeset
|
2990 spa_strfree(oldvdpath); |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
Eric Kustarz <Eric.Kustarz@Sun.COM>
parents:
7294
diff
changeset
|
2991 spa_strfree(newvdpath); |
|
99e2110471bb
6734585 zpool history should log when a spare device becomes active
Eric Kustarz <Eric.Kustarz@Sun.COM>
parents:
7294
diff
changeset
|
2992 |
| 789 | 2993 /* |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
7042
diff
changeset
|
2994 * Kick off a resilver to update newvd. |
| 789 | 2995 */ |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
7042
diff
changeset
|
2996 VERIFY3U(spa_scrub(spa, POOL_SCRUB_RESILVER), ==, 0); |
| 789 | 2997 |
| 2998 return (0); | |
| 2999 } | |
| 3000 | |
| 3001 /* | |
| 3002 * Detach a device from a mirror or replacing vdev. | |
| 3003 * If 'replace_done' is specified, only detach if the parent | |
| 3004 * is a replacing vdev. | |
| 3005 */ | |
| 3006 int | |
| 1544 | 3007 spa_vdev_detach(spa_t *spa, uint64_t guid, int replace_done) |
| 789 | 3008 { |
| 3009 uint64_t txg; | |
| 3010 int c, t, error; | |
| 3011 vdev_t *rvd = spa->spa_root_vdev; | |
| 3012 vdev_t *vd, *pvd, *cvd, *tvd; | |
| 2082 | 3013 boolean_t unspare = B_FALSE; |
| 3014 uint64_t unspare_guid; | |
|
6673
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
eschrock
parents:
6643
diff
changeset
|
3015 size_t len; |
| 789 | 3016 |
| 3017 txg = spa_vdev_enter(spa); | |
| 3018 | |
|
6643
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
changeset
|
3019 vd = spa_lookup_by_guid(spa, guid, B_FALSE); |
| 789 | 3020 |
| 3021 if (vd == NULL) | |
| 3022 return (spa_vdev_exit(spa, NULL, txg, ENODEV)); | |
| 3023 | |
|
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
3024 if (!vd->vdev_ops->vdev_op_leaf) |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
3025 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
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1544
diff
changeset
|
3026 |
| 789 | 3027 pvd = vd->vdev_parent; |
| 3028 | |
| 3029 /* | |
| 3030 * If replace_done is specified, only remove this device if it's | |
| 2082 | 3031 * the first child of a replacing vdev. For the 'spare' vdev, either |
| 3032 * disk can be removed. | |
| 789 | 3033 */ |
| 2082 | 3034 if (replace_done) { |
| 3035 if (pvd->vdev_ops == &vdev_replacing_ops) { | |
| 3036 if (vd->vdev_id != 0) | |
| 3037 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
| 3038 } else if (pvd->vdev_ops != &vdev_spare_ops) { | |
| 3039 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
| 3040 } | |
| 3041 } | |
| 3042 | |
| 3043 ASSERT(pvd->vdev_ops != &vdev_spare_ops || | |
| 4577 | 3044 spa_version(spa) >= SPA_VERSION_SPARES); |
| 789 | 3045 |
| 3046 /* | |
| 2082 | 3047 * Only mirror, replacing, and spare vdevs support detach. |
| 789 | 3048 */ |
| 3049 if (pvd->vdev_ops != &vdev_replacing_ops && | |
| 2082 | 3050 pvd->vdev_ops != &vdev_mirror_ops && |
| 3051 pvd->vdev_ops != &vdev_spare_ops) | |
| 789 | 3052 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
| 3053 | |
| 3054 /* | |
| 3055 * If there's only one replica, you can't detach it. | |
| 3056 */ | |
| 3057 if (pvd->vdev_children <= 1) | |
| 3058 return (spa_vdev_exit(spa, NULL, txg, EBUSY)); | |
| 3059 | |
| 3060 /* | |
| 3061 * If all siblings have non-empty DTLs, this device may have the only | |
| 3062 * valid copy of the data, which means we cannot safely detach it. | |
| 3063 * | |
| 3064 * XXX -- as in the vdev_offline() case, we really want a more | |
| 3065 * precise DTL check. | |
| 3066 */ | |
| 3067 for (c = 0; c < pvd->vdev_children; c++) { | |
| 3068 uint64_t dirty; | |
| 3069 | |
| 3070 cvd = pvd->vdev_child[c]; | |
| 3071 if (cvd == vd) | |
| 3072 continue; | |
| 3073 if (vdev_is_dead(cvd)) | |
| 3074 continue; | |
| 3075 mutex_enter(&cvd->vdev_dtl_lock); | |
| 3076 dirty = cvd->vdev_dtl_map.sm_space | | |
| 3077 cvd->vdev_dtl_scrub.sm_space; | |
| 3078 mutex_exit(&cvd->vdev_dtl_lock); | |
| 3079 if (!dirty) | |
| 3080 break; | |
| 3081 } | |
| 2082 | 3082 |
|
7754
b80e4842ad54
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Jeff Bonwick <Jeff.Bonwick@Sun.COM>
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7706
diff
changeset
|
3083 if (c == pvd->vdev_children) |
| 789 | 3084 return (spa_vdev_exit(spa, NULL, txg, EBUSY)); |
| 3085 | |
| 3086 /* | |
|
6673
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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6643
diff
changeset
|
3087 * 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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6643
diff
changeset
|
3088 * 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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6643
diff
changeset
|
3089 * at the end in spa_vdev_attach(). If so, undo that change now. |
|
be079d6124af
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6643
diff
changeset
|
3090 */ |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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6643
diff
changeset
|
3091 if (pvd->vdev_ops == &vdev_replacing_ops && vd->vdev_id == 1 && |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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6643
diff
changeset
|
3092 pvd->vdev_child[0]->vdev_path != NULL && |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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6643
diff
changeset
|
3093 pvd->vdev_child[1]->vdev_path != NULL) { |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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6643
diff
changeset
|
3094 ASSERT(pvd->vdev_child[1] == vd); |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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6643
diff
changeset
|
3095 cvd = pvd->vdev_child[0]; |
|
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6697301 deadlock between ZFS and devfs can hang system
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6643
diff
changeset
|
3096 len = strlen(vd->vdev_path); |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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6643
diff
changeset
|
3097 if (strncmp(cvd->vdev_path, vd->vdev_path, len) == 0 && |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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6643
diff
changeset
|
3098 strcmp(cvd->vdev_path + len, "/old") == 0) { |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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6643
diff
changeset
|
3099 spa_strfree(cvd->vdev_path); |
|
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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6643
diff
changeset
|
3100 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
|
3101 } |
|
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6697301 deadlock between ZFS and devfs can hang system
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6643
diff
changeset
|
3102 } |
|
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diff
changeset
|
3103 |
|
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6643
diff
changeset
|
3104 /* |
| 2082 | 3105 * If we are detaching the original disk from a spare, then it implies |
| 3106 * that the spare should become a real disk, and be removed from the | |
| 3107 * active spare list for the pool. | |
| 3108 */ | |
| 3109 if (pvd->vdev_ops == &vdev_spare_ops && | |
| 3110 vd->vdev_id == 0) | |
| 3111 unspare = B_TRUE; | |
| 3112 | |
| 3113 /* | |
| 789 | 3114 * Erase the disk labels so the disk can be used for other things. |
| 3115 * This must be done after all other error cases are handled, | |
| 3116 * but before we disembowel vd (so we can still do I/O to it). | |
| 3117 * But if we can't do it, don't treat the error as fatal -- | |
| 3118 * it may be that the unwritability of the disk is the reason | |
| 3119 * it's being detached! | |
| 3120 */ | |
|
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6393525 vdev_reopen() should verify that it's still the same device
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3290
diff
changeset
|
3121 error = vdev_label_init(vd, 0, VDEV_LABEL_REMOVE); |
| 789 | 3122 |
| 3123 /* | |
| 3124 * Remove vd from its parent and compact the parent's children. | |
| 3125 */ | |
| 3126 vdev_remove_child(pvd, vd); | |
| 3127 vdev_compact_children(pvd); | |
| 3128 | |
| 3129 /* | |
| 3130 * Remember one of the remaining children so we can get tvd below. | |
| 3131 */ | |
| 3132 cvd = pvd->vdev_child[0]; | |
| 3133 | |
| 3134 /* | |
| 2082 | 3135 * If we need to remove the remaining child from the list of hot spares, |
| 3136 * do it now, marking the vdev as no longer a spare in the process. We | |
| 3137 * must do this before vdev_remove_parent(), because that can change the | |
| 3138 * GUID if it creates a new toplevel GUID. | |
| 3139 */ | |
| 3140 if (unspare) { | |
| 3141 ASSERT(cvd->vdev_isspare); | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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diff
changeset
|
3142 spa_spare_remove(cvd); |
| 2082 | 3143 unspare_guid = cvd->vdev_guid; |
| 3144 } | |
| 3145 | |
| 3146 /* | |
| 789 | 3147 * If the parent mirror/replacing vdev only has one child, |
| 3148 * the parent is no longer needed. Remove it from the tree. | |
| 3149 */ | |
| 3150 if (pvd->vdev_children == 1) | |
| 3151 vdev_remove_parent(cvd); | |
| 3152 | |
| 3153 /* | |
| 3154 * We don't set tvd until now because the parent we just removed | |
| 3155 * may have been the previous top-level vdev. | |
| 3156 */ | |
| 3157 tvd = cvd->vdev_top; | |
| 3158 ASSERT(tvd->vdev_parent == rvd); | |
| 3159 | |
| 3160 /* | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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3290
diff
changeset
|
3161 * Reevaluate the parent vdev state. |
| 789 | 3162 */ |
| 4451 | 3163 vdev_propagate_state(cvd); |
| 789 | 3164 |
| 3165 /* | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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3290
diff
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|
3166 * 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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parents:
3290
diff
changeset
|
3167 * 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
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|
3168 * can't fail because the existing metaslabs are already in core, so |
|
a2fa338530c1
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|
3169 * there's nothing to read from disk. |
| 789 | 3170 */ |
| 1732 | 3171 VERIFY(vdev_metaslab_init(tvd, txg) == 0); |
| 789 | 3172 |
| 3173 vdev_config_dirty(tvd); | |
| 3174 | |
| 3175 /* | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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|
3176 * 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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|
3177 * vd->vdev_detached is set and free vd's DTL object in syncing context. |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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|
3178 * But first make sure we're not on any *other* txg's DTL list, to |
|
a2fa338530c1
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|
3179 * prevent vd from being accessed after it's freed. |
| 789 | 3180 */ |
| 3181 for (t = 0; t < TXG_SIZE; t++) | |
| 3182 (void) txg_list_remove_this(&tvd->vdev_dtl_list, vd, t); | |
| 1732 | 3183 vd->vdev_detached = B_TRUE; |
| 3184 vdev_dirty(tvd, VDD_DTL, vd, txg); | |
| 789 | 3185 |
| 4451 | 3186 spa_event_notify(spa, vd, ESC_ZFS_VDEV_REMOVE); |
| 3187 | |
| 2082 | 3188 error = spa_vdev_exit(spa, vd, txg, 0); |
| 3189 | |
| 3190 /* | |
|
3377
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3191 * If this was the removal of the original device in a hot spare vdev, |
|
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|
3192 * then we want to go through and remove the device from the hot spare |
|
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|
3193 * list of every other pool. |
| 2082 | 3194 */ |
| 3195 if (unspare) { | |
| 3196 spa = NULL; | |
| 3197 mutex_enter(&spa_namespace_lock); | |
| 3198 while ((spa = spa_next(spa)) != NULL) { | |
| 3199 if (spa->spa_state != POOL_STATE_ACTIVE) | |
| 3200 continue; | |
|
7793
4dbbc0a3f135
6755897 recursive mutex enter in spa_vdev_enter when running test suite
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|
3201 spa_open_ref(spa, FTAG); |
|
4dbbc0a3f135
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|
3202 mutex_exit(&spa_namespace_lock); |
| 2082 | 3203 (void) spa_vdev_remove(spa, unspare_guid, B_TRUE); |
|
7793
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|
3204 mutex_enter(&spa_namespace_lock); |
|
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|
3205 spa_close(spa, FTAG); |
| 2082 | 3206 } |
| 3207 mutex_exit(&spa_namespace_lock); | |
| 3208 } | |
| 3209 | |
| 3210 return (error); | |
| 3211 } | |
| 3212 | |
|
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|
3213 static nvlist_t * |
|
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|
3214 spa_nvlist_lookup_by_guid(nvlist_t **nvpp, int count, uint64_t target_guid) |
| 2082 | 3215 { |
|
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3216 for (int i = 0; i < count; i++) { |
|
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3217 uint64_t guid; |
|
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3218 |
|
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|
3219 VERIFY(nvlist_lookup_uint64(nvpp[i], ZPOOL_CONFIG_GUID, |
|
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|
3220 &guid) == 0); |
|
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3221 |
|
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3222 if (guid == target_guid) |
|
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|
3223 return (nvpp[i]); |
| 2082 | 3224 } |
| 3225 | |
|
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3226 return (NULL); |
| 5450 | 3227 } |
| 3228 | |
|
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|
3229 static void |
|
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|
3230 spa_vdev_remove_aux(nvlist_t *config, char *name, nvlist_t **dev, int count, |
|
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3231 nvlist_t *dev_to_remove) |
| 5450 | 3232 { |
|
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|
3233 nvlist_t **newdev = NULL; |
|
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3234 |
|
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3235 if (count > 1) |
|
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|
3236 newdev = kmem_alloc((count - 1) * sizeof (void *), KM_SLEEP); |
|
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3237 |
|
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3238 for (int i = 0, j = 0; i < count; i++) { |
|
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3239 if (dev[i] == dev_to_remove) |
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3240 continue; |
|
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|
3241 VERIFY(nvlist_dup(dev[i], &newdev[j++], KM_SLEEP) == 0); |
| 5450 | 3242 } |
| 3243 | |
|
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3244 VERIFY(nvlist_remove(config, name, DATA_TYPE_NVLIST_ARRAY) == 0); |
|
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3245 VERIFY(nvlist_add_nvlist_array(config, name, newdev, count - 1) == 0); |
|
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3246 |
|
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3247 for (int i = 0; i < count - 1; i++) |
|
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|
3248 nvlist_free(newdev[i]); |
|
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3249 |
|
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3250 if (count > 1) |
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|
3251 kmem_free(newdev, (count - 1) * sizeof (void *)); |
| 5450 | 3252 } |
| 3253 | |
| 3254 /* | |
| 3255 * Remove a device from the pool. Currently, this supports removing only hot | |
| 3256 * spares and level 2 ARC devices. | |
| 3257 */ | |
| 3258 int | |
| 3259 spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare) | |
| 3260 { | |
| 3261 vdev_t *vd; | |
|
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|
3262 nvlist_t **spares, **l2cache, *nv; |
| 5450 | 3263 uint_t nspares, nl2cache; |
|
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|
3264 uint64_t txg; |
| 5450 | 3265 int error = 0; |
| 3266 | |
|
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3267 txg = spa_vdev_enter(spa); |
| 5450 | 3268 |
|
6643
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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6615
diff
changeset
|
3269 vd = spa_lookup_by_guid(spa, guid, B_FALSE); |
| 5450 | 3270 |
| 3271 if (spa->spa_spares.sav_vdevs != NULL && | |
| 3272 nvlist_lookup_nvlist_array(spa->spa_spares.sav_config, | |
|
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|
3273 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0 && |
|
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3274 (nv = spa_nvlist_lookup_by_guid(spares, nspares, guid)) != NULL) { |
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3275 /* |
|
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3276 * Only remove the hot spare if it's not currently in use |
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3277 * in this pool. |
|
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3278 */ |
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3279 if (vd == NULL || unspare) { |
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3280 spa_vdev_remove_aux(spa->spa_spares.sav_config, |
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3281 ZPOOL_CONFIG_SPARES, spares, nspares, nv); |
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3282 spa_load_spares(spa); |
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3283 spa->spa_spares.sav_sync = B_TRUE; |
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3284 } else { |
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3285 error = EBUSY; |
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3286 } |
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3287 } else if (spa->spa_l2cache.sav_vdevs != NULL && |
| 5450 | 3288 nvlist_lookup_nvlist_array(spa->spa_l2cache.sav_config, |
|
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3289 ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0 && |
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3290 (nv = spa_nvlist_lookup_by_guid(l2cache, nl2cache, guid)) != NULL) { |
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3291 /* |
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3292 * Cache devices can always be removed. |
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3293 */ |
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3294 spa_vdev_remove_aux(spa->spa_l2cache.sav_config, |
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3295 ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache, nv); |
| 5450 | 3296 spa_load_l2cache(spa); |
| 3297 spa->spa_l2cache.sav_sync = B_TRUE; | |
|
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3298 } else if (vd != NULL) { |
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3299 /* |
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3300 * Normal vdevs cannot be removed (yet). |
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3301 */ |
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3302 error = ENOTSUP; |
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3303 } else { |
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3304 /* |
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3305 * There is no vdev of any kind with the specified guid. |
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3306 */ |
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3307 error = ENOENT; |
| 5450 | 3308 } |
| 2082 | 3309 |
|
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3310 return (spa_vdev_exit(spa, NULL, txg, error)); |
| 789 | 3311 } |
| 3312 | |
| 3313 /* | |
| 4451 | 3314 * Find any device that's done replacing, or a vdev marked 'unspare' that's |
| 3315 * current spared, so we can detach it. | |
| 789 | 3316 */ |
| 1544 | 3317 static vdev_t * |
| 4451 | 3318 spa_vdev_resilver_done_hunt(vdev_t *vd) |
| 789 | 3319 { |
| 1544 | 3320 vdev_t *newvd, *oldvd; |
| 789 | 3321 int c; |
| 3322 | |
| 1544 | 3323 for (c = 0; c < vd->vdev_children; c++) { |
| 4451 | 3324 oldvd = spa_vdev_resilver_done_hunt(vd->vdev_child[c]); |
| 1544 | 3325 if (oldvd != NULL) |
| 3326 return (oldvd); | |
| 3327 } | |
| 789 | 3328 |
| 4451 | 3329 /* |
| 3330 * Check for a completed replacement. | |
| 3331 */ | |
| 789 | 3332 if (vd->vdev_ops == &vdev_replacing_ops && vd->vdev_children == 2) { |
| 1544 | 3333 oldvd = vd->vdev_child[0]; |
| 3334 newvd = vd->vdev_child[1]; | |
| 789 | 3335 |
| 1544 | 3336 mutex_enter(&newvd->vdev_dtl_lock); |
| 3337 if (newvd->vdev_dtl_map.sm_space == 0 && | |
| 3338 newvd->vdev_dtl_scrub.sm_space == 0) { | |
| 3339 mutex_exit(&newvd->vdev_dtl_lock); | |
| 3340 return (oldvd); | |
| 3341 } | |
| 3342 mutex_exit(&newvd->vdev_dtl_lock); | |
| 3343 } | |
| 789 | 3344 |
| 4451 | 3345 /* |
| 3346 * Check for a completed resilver with the 'unspare' flag set. | |
| 3347 */ | |
| 3348 if (vd->vdev_ops == &vdev_spare_ops && vd->vdev_children == 2) { | |
| 3349 newvd = vd->vdev_child[0]; | |
| 3350 oldvd = vd->vdev_child[1]; | |
| 3351 | |
| 3352 mutex_enter(&newvd->vdev_dtl_lock); | |
| 3353 if (newvd->vdev_unspare && | |
| 3354 newvd->vdev_dtl_map.sm_space == 0 && | |
| 3355 newvd->vdev_dtl_scrub.sm_space == 0) { | |
| 3356 newvd->vdev_unspare = 0; | |
| 3357 mutex_exit(&newvd->vdev_dtl_lock); | |
| 3358 return (oldvd); | |
| 3359 } | |
| 3360 mutex_exit(&newvd->vdev_dtl_lock); | |
| 3361 } | |
| 3362 | |
| 1544 | 3363 return (NULL); |
| 789 | 3364 } |
| 3365 | |
| 1544 | 3366 static void |
| 4451 | 3367 spa_vdev_resilver_done(spa_t *spa) |
| 789 | 3368 { |
| 1544 | 3369 vdev_t *vd; |
| 2082 | 3370 vdev_t *pvd; |
| 1544 | 3371 uint64_t guid; |
| 2082 | 3372 uint64_t pguid = 0; |
| 789 | 3373 |
|
7754
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Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
3374 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); |
| 789 | 3375 |
| 4451 | 3376 while ((vd = spa_vdev_resilver_done_hunt(spa->spa_root_vdev)) != NULL) { |
| 1544 | 3377 guid = vd->vdev_guid; |
| 2082 | 3378 /* |
| 3379 * If we have just finished replacing a hot spared device, then | |
| 3380 * we need to detach the parent's first child (the original hot | |
| 3381 * spare) as well. | |
| 3382 */ | |
| 3383 pvd = vd->vdev_parent; | |
| 3384 if (pvd->vdev_parent->vdev_ops == &vdev_spare_ops && | |
| 3385 pvd->vdev_id == 0) { | |
| 3386 ASSERT(pvd->vdev_ops == &vdev_replacing_ops); | |
| 3387 ASSERT(pvd->vdev_parent->vdev_children == 2); | |
| 3388 pguid = pvd->vdev_parent->vdev_child[1]->vdev_guid; | |
| 3389 } | |
|
7754
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diff
changeset
|
3390 spa_config_exit(spa, SCL_CONFIG, FTAG); |
| 1544 | 3391 if (spa_vdev_detach(spa, guid, B_TRUE) != 0) |
| 3392 return; | |
| 2082 | 3393 if (pguid != 0 && spa_vdev_detach(spa, pguid, B_TRUE) != 0) |
| 3394 return; | |
|
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diff
changeset
|
3395 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); |
| 789 | 3396 } |
| 3397 | |
|
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Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
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diff
changeset
|
3398 spa_config_exit(spa, SCL_CONFIG, FTAG); |
| 789 | 3399 } |
| 3400 | |
| 3401 /* | |
|
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|
3402 * Update the stored path for this vdev. Dirty the vdev configuration, relying |
|
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diff
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|
3403 * on spa_vdev_enter/exit() to synchronize the labels and cache. |
|
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|
3404 */ |
|
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|
3405 int |
|
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eschrock
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diff
changeset
|
3406 spa_vdev_setpath(spa_t *spa, uint64_t guid, const char *newpath) |
|
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|
3407 { |
|
6643
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diff
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|
3408 vdev_t *vd; |
|
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|
3409 uint64_t txg; |
|
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|
3410 |
|
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6362672 import gets confused about overlapping slices
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diff
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|
3411 txg = spa_vdev_enter(spa); |
|
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|
3412 |
|
6643
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diff
changeset
|
3413 if ((vd = spa_lookup_by_guid(spa, guid, B_TRUE)) == NULL) { |
| 2082 | 3414 /* |
|
6643
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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diff
changeset
|
3415 * Determine if this is a reference to a hot spare device. If |
|
3a34b0dbb107
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6615
diff
changeset
|
3416 * it is, update the path manually as there is no associated |
|
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6615
diff
changeset
|
3417 * vdev_t that can be synced to disk. |
| 2082 | 3418 */ |
|
6643
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eschrock
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diff
changeset
|
3419 nvlist_t **spares; |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
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diff
changeset
|
3420 uint_t i, nspares; |
| 5450 | 3421 |
| 3422 if (spa->spa_spares.sav_config != NULL) { | |
| 3423 VERIFY(nvlist_lookup_nvlist_array( | |
| 3424 spa->spa_spares.sav_config, ZPOOL_CONFIG_SPARES, | |
| 3425 &spares, &nspares) == 0); | |
| 2082 | 3426 for (i = 0; i < nspares; i++) { |
| 3427 uint64_t theguid; | |
| 3428 VERIFY(nvlist_lookup_uint64(spares[i], | |
| 3429 ZPOOL_CONFIG_GUID, &theguid) == 0); | |
| 5450 | 3430 if (theguid == guid) { |
| 3431 VERIFY(nvlist_add_string(spares[i], | |
| 3432 ZPOOL_CONFIG_PATH, newpath) == 0); | |
| 3433 spa_load_spares(spa); | |
| 3434 spa->spa_spares.sav_sync = B_TRUE; | |
| 3435 return (spa_vdev_exit(spa, NULL, txg, | |
| 3436 0)); | |
| 3437 } | |
| 2082 | 3438 } |
| 3439 } | |
| 5450 | 3440 |
| 3441 return (spa_vdev_exit(spa, NULL, txg, ENOENT)); | |
| 2082 | 3442 } |
|
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|
3443 |
|
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
3444 if (!vd->vdev_ops->vdev_op_leaf) |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
3445 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
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diff
changeset
|
3446 |
|
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|
3447 spa_strfree(vd->vdev_path); |
|
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diff
changeset
|
3448 vd->vdev_path = spa_strdup(newpath); |
|
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changeset
|
3449 |
|
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|
3450 vdev_config_dirty(vd->vdev_top); |
|
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|
3451 |
|
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|
3452 return (spa_vdev_exit(spa, NULL, txg, 0)); |
|
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|
3453 } |
|
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|
3454 |
|
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changeset
|
3455 /* |
| 789 | 3456 * ========================================================================== |
| 3457 * SPA Scrubbing | |
| 3458 * ========================================================================== | |
| 3459 */ | |
| 3460 | |
|
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diff
changeset
|
3461 int |
|
361307ae060d
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diff
changeset
|
3462 spa_scrub(spa_t *spa, pool_scrub_type_t type) |
| 789 | 3463 { |
|
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diff
changeset
|
3464 ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == 0); |
| 4808 | 3465 |
| 789 | 3466 if ((uint_t)type >= POOL_SCRUB_TYPES) |
| 3467 return (ENOTSUP); | |
| 3468 | |
| 3469 /* | |
|
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diff
changeset
|
3470 * If a resilver was requested, but there is no DTL on a |
|
361307ae060d
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diff
changeset
|
3471 * writeable leaf device, we have nothing to do. |
| 789 | 3472 */ |
|
7046
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diff
changeset
|
3473 if (type == POOL_SCRUB_RESILVER && |
|
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7042
diff
changeset
|
3474 !vdev_resilver_needed(spa->spa_root_vdev, NULL, NULL)) { |
|
361307ae060d
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7042
diff
changeset
|
3475 spa_async_request(spa, SPA_ASYNC_RESILVER_DONE); |
| 1544 | 3476 return (0); |
| 3477 } | |
| 789 | 3478 |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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diff
changeset
|
3479 if (type == POOL_SCRUB_EVERYTHING && |
|
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diff
changeset
|
3480 spa->spa_dsl_pool->dp_scrub_func != SCRUB_FUNC_NONE && |
|
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diff
changeset
|
3481 spa->spa_dsl_pool->dp_scrub_isresilver) |
|
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diff
changeset
|
3482 return (EBUSY); |
|
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diff
changeset
|
3483 |
|
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diff
changeset
|
3484 if (type == POOL_SCRUB_EVERYTHING || type == POOL_SCRUB_RESILVER) { |
|
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diff
changeset
|
3485 return (dsl_pool_scrub_clean(spa->spa_dsl_pool)); |
|
361307ae060d
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diff
changeset
|
3486 } else if (type == POOL_SCRUB_NONE) { |
|
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6343667 scrub/resilver has to start over when a snapshot is taken
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diff
changeset
|
3487 return (dsl_pool_scrub_cancel(spa->spa_dsl_pool)); |
| 1544 | 3488 } else { |
|
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diff
changeset
|
3489 return (EINVAL); |
| 1544 | 3490 } |
| 789 | 3491 } |
| 3492 | |
| 1544 | 3493 /* |
| 3494 * ========================================================================== | |
| 3495 * SPA async task processing | |
| 3496 * ========================================================================== | |
| 3497 */ | |
| 3498 | |
| 3499 static void | |
| 4451 | 3500 spa_async_remove(spa_t *spa, vdev_t *vd) |
| 789 | 3501 { |
|
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Brendan Gregg - Sun Microsystems <Brendan.Gregg@Sun.COM>
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7326
diff
changeset
|
3502 if (vd->vdev_remove_wanted) { |
|
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7326
diff
changeset
|
3503 vd->vdev_remove_wanted = 0; |
|
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diff
changeset
|
3504 vdev_set_state(vd, B_FALSE, VDEV_STATE_REMOVED, VDEV_AUX_NONE); |
|
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diff
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|
3505 vdev_clear(spa, vd); |
|
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diff
changeset
|
3506 vdev_state_dirty(vd->vdev_top); |
| 1544 | 3507 } |
|
7361
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diff
changeset
|
3508 |
|
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diff
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|
3509 for (int c = 0; c < vd->vdev_children; c++) |
|
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diff
changeset
|
3510 spa_async_remove(spa, vd->vdev_child[c]); |
| 1544 | 3511 } |
| 3512 | |
| 3513 static void | |
|
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diff
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|
3514 spa_async_probe(spa_t *spa, vdev_t *vd) |
|
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diff
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|
3515 { |
|
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diff
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|
3516 if (vd->vdev_probe_wanted) { |
|
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|
3517 vd->vdev_probe_wanted = 0; |
|
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diff
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|
3518 vdev_reopen(vd); /* vdev_open() does the actual probe */ |
|
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diff
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|
3519 } |
|
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diff
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|
3520 |
|
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|
3521 for (int c = 0; c < vd->vdev_children; c++) |
|
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|
3522 spa_async_probe(spa, vd->vdev_child[c]); |
|
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|
3523 } |
|
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|
3524 |
|
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changeset
|
3525 static void |
| 1544 | 3526 spa_async_thread(spa_t *spa) |
| 3527 { | |
|
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diff
changeset
|
3528 int tasks; |
| 1544 | 3529 |
| 3530 ASSERT(spa->spa_sync_on); | |
| 789 | 3531 |
| 1544 | 3532 mutex_enter(&spa->spa_async_lock); |
| 3533 tasks = spa->spa_async_tasks; | |
| 3534 spa->spa_async_tasks = 0; | |
| 3535 mutex_exit(&spa->spa_async_lock); | |
| 3536 | |
| 3537 /* | |
|
1635
0ab1193d47cb
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1601
diff
changeset
|
3538 * See if the config needs to be updated. |
|
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1601
diff
changeset
|
3539 */ |
|
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diff
changeset
|
3540 if (tasks & SPA_ASYNC_CONFIG_UPDATE) { |
|
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1601
diff
changeset
|
3541 mutex_enter(&spa_namespace_lock); |
|
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1601
diff
changeset
|
3542 spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); |
|
0ab1193d47cb
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1601
diff
changeset
|
3543 mutex_exit(&spa_namespace_lock); |
|
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1601
diff
changeset
|
3544 } |
|
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3545 |
|
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3546 /* |
| 4451 | 3547 * See if any devices need to be marked REMOVED. |
| 1544 | 3548 */ |
|
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3549 if (tasks & SPA_ASYNC_REMOVE) { |
|
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3550 spa_vdev_state_enter(spa); |
| 4451 | 3551 spa_async_remove(spa, spa->spa_root_vdev); |
|
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3552 for (int i = 0; i < spa->spa_l2cache.sav_count; i++) |
|
7361
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diff
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|
3553 spa_async_remove(spa, spa->spa_l2cache.sav_vdevs[i]); |
|
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3554 for (int i = 0; i < spa->spa_spares.sav_count; i++) |
|
7361
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|
3555 spa_async_remove(spa, spa->spa_spares.sav_vdevs[i]); |
|
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|
3556 (void) spa_vdev_state_exit(spa, NULL, 0); |
|
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3557 } |
|
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3558 |
|
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|
3559 /* |
|
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|
3560 * See if any devices need to be probed. |
|
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3561 */ |
|
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|
3562 if (tasks & SPA_ASYNC_PROBE) { |
|
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|
3563 spa_vdev_state_enter(spa); |
|
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|
3564 spa_async_probe(spa, spa->spa_root_vdev); |
|
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|
3565 (void) spa_vdev_state_exit(spa, NULL, 0); |
| 4451 | 3566 } |
| 1544 | 3567 |
| 3568 /* | |
| 3569 * If any devices are done replacing, detach them. | |
| 3570 */ | |
| 4451 | 3571 if (tasks & SPA_ASYNC_RESILVER_DONE) |
| 3572 spa_vdev_resilver_done(spa); | |
| 789 | 3573 |
| 1544 | 3574 /* |
| 3575 * Kick off a resilver. | |
| 3576 */ | |
|
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|
3577 if (tasks & SPA_ASYNC_RESILVER) |
|
361307ae060d
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|
3578 VERIFY(spa_scrub(spa, POOL_SCRUB_RESILVER) == 0); |
| 1544 | 3579 |
| 3580 /* | |
| 3581 * Let the world know that we're done. | |
| 3582 */ | |
| 3583 mutex_enter(&spa->spa_async_lock); | |
| 3584 spa->spa_async_thread = NULL; | |
| 3585 cv_broadcast(&spa->spa_async_cv); | |
| 3586 mutex_exit(&spa->spa_async_lock); | |
| 3587 thread_exit(); | |
| 3588 } | |
| 3589 | |
| 3590 void | |
| 3591 spa_async_suspend(spa_t *spa) | |
| 3592 { | |
| 3593 mutex_enter(&spa->spa_async_lock); | |
| 3594 spa->spa_async_suspended++; | |
| 3595 while (spa->spa_async_thread != NULL) | |
| 3596 cv_wait(&spa->spa_async_cv, &spa->spa_async_lock); | |
| 3597 mutex_exit(&spa->spa_async_lock); | |
| 3598 } | |
| 3599 | |
| 3600 void | |
| 3601 spa_async_resume(spa_t *spa) | |
| 3602 { | |
| 3603 mutex_enter(&spa->spa_async_lock); | |
| 3604 ASSERT(spa->spa_async_suspended != 0); | |
| 3605 spa->spa_async_suspended--; | |
| 3606 mutex_exit(&spa->spa_async_lock); | |
| 3607 } | |
| 3608 | |
| 3609 static void | |
| 3610 spa_async_dispatch(spa_t *spa) | |
| 3611 { | |
| 3612 mutex_enter(&spa->spa_async_lock); | |
| 3613 if (spa->spa_async_tasks && !spa->spa_async_suspended && | |
|
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|
3614 spa->spa_async_thread == NULL && |
|
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diff
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|
3615 rootdir != NULL && !vn_is_readonly(rootdir)) |
| 1544 | 3616 spa->spa_async_thread = thread_create(NULL, 0, |
| 3617 spa_async_thread, spa, 0, &p0, TS_RUN, maxclsyspri); | |
| 3618 mutex_exit(&spa->spa_async_lock); | |
| 3619 } | |
| 3620 | |
| 3621 void | |
| 3622 spa_async_request(spa_t *spa, int task) | |
| 3623 { | |
| 3624 mutex_enter(&spa->spa_async_lock); | |
| 3625 spa->spa_async_tasks |= task; | |
| 3626 mutex_exit(&spa->spa_async_lock); | |
| 789 | 3627 } |
| 3628 | |
| 3629 /* | |
| 3630 * ========================================================================== | |
| 3631 * SPA syncing routines | |
| 3632 * ========================================================================== | |
| 3633 */ | |
| 3634 | |
| 3635 static void | |
| 3636 spa_sync_deferred_frees(spa_t *spa, uint64_t txg) | |
| 3637 { | |
| 3638 bplist_t *bpl = &spa->spa_sync_bplist; | |
| 3639 dmu_tx_t *tx; | |
| 3640 blkptr_t blk; | |
| 3641 uint64_t itor = 0; | |
| 3642 zio_t *zio; | |
| 3643 int error; | |
| 3644 uint8_t c = 1; | |
| 3645 | |
|
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3646 zio = zio_root(spa, NULL, NULL, ZIO_FLAG_CANFAIL); |
|
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3647 |
|
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|
3648 while (bplist_iterate(bpl, &itor, &blk) == 0) { |
|
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3649 ASSERT(blk.blk_birth < txg); |
|
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|
3650 zio_nowait(zio_free(zio, spa, txg, &blk, NULL, NULL, |
|
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3651 ZIO_FLAG_MUSTSUCCEED)); |
|
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|
3652 } |
| 789 | 3653 |
| 3654 error = zio_wait(zio); | |
| 3655 ASSERT3U(error, ==, 0); | |
| 3656 | |
| 3657 tx = dmu_tx_create_assigned(spa->spa_dsl_pool, txg); | |
| 3658 bplist_vacate(bpl, tx); | |
| 3659 | |
| 3660 /* | |
| 3661 * Pre-dirty the first block so we sync to convergence faster. | |
| 3662 * (Usually only the first block is needed.) | |
| 3663 */ | |
| 3664 dmu_write(spa->spa_meta_objset, spa->spa_sync_bplist_obj, 0, 1, &c, tx); | |
| 3665 dmu_tx_commit(tx); | |
| 3666 } | |
| 3667 | |
| 3668 static void | |
| 2082 | 3669 spa_sync_nvlist(spa_t *spa, uint64_t obj, nvlist_t *nv, dmu_tx_t *tx) |
| 3670 { | |
| 3671 char *packed = NULL; | |
|
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diff
changeset
|
3672 size_t bufsize; |
| 2082 | 3673 size_t nvsize = 0; |
| 3674 dmu_buf_t *db; | |
| 3675 | |
| 3676 VERIFY(nvlist_size(nv, &nvsize, NV_ENCODE_XDR) == 0); | |
| 3677 | |
|
7497
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diff
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|
3678 /* |
|
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|
3679 * Write full (SPA_CONFIG_BLOCKSIZE) blocks of configuration |
|
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diff
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|
3680 * information. This avoids the dbuf_will_dirty() path and |
|
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diff
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|
3681 * saves us a pre-read to get data we don't actually care about. |
|
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|
3682 */ |
|
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|
3683 bufsize = P2ROUNDUP(nvsize, SPA_CONFIG_BLOCKSIZE); |
|
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diff
changeset
|
3684 packed = kmem_alloc(bufsize, KM_SLEEP); |
| 2082 | 3685 |
| 3686 VERIFY(nvlist_pack(nv, &packed, &nvsize, NV_ENCODE_XDR, | |
| 3687 KM_SLEEP) == 0); | |
|
7497
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diff
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|
3688 bzero(packed + nvsize, bufsize - nvsize); |
|
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diff
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|
3689 |
|
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|
3690 dmu_write(spa->spa_meta_objset, obj, 0, bufsize, packed, tx); |
|
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|
3691 |
|
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|
3692 kmem_free(packed, bufsize); |
| 2082 | 3693 |
| 3694 VERIFY(0 == dmu_bonus_hold(spa->spa_meta_objset, obj, FTAG, &db)); | |
| 3695 dmu_buf_will_dirty(db, tx); | |
| 3696 *(uint64_t *)db->db_data = nvsize; | |
| 3697 dmu_buf_rele(db, FTAG); | |
| 3698 } | |
| 3699 | |
| 3700 static void | |
| 5450 | 3701 spa_sync_aux_dev(spa_t *spa, spa_aux_vdev_t *sav, dmu_tx_t *tx, |
| 3702 const char *config, const char *entry) | |
| 2082 | 3703 { |
| 3704 nvlist_t *nvroot; | |
| 5450 | 3705 nvlist_t **list; |
| 2082 | 3706 int i; |
| 3707 | |
| 5450 | 3708 if (!sav->sav_sync) |
| 2082 | 3709 return; |
| 3710 | |
| 3711 /* | |
| 5450 | 3712 * Update the MOS nvlist describing the list of available devices. |
| 3713 * spa_validate_aux() will have already made sure this nvlist is | |
| 4451 | 3714 * valid and the vdevs are labeled appropriately. |
| 2082 | 3715 */ |
| 5450 | 3716 if (sav->sav_object == 0) { |
| 3717 sav->sav_object = dmu_object_alloc(spa->spa_meta_objset, | |
| 3718 DMU_OT_PACKED_NVLIST, 1 << 14, DMU_OT_PACKED_NVLIST_SIZE, | |
| 3719 sizeof (uint64_t), tx); | |
| 2082 | 3720 VERIFY(zap_update(spa->spa_meta_objset, |
| 5450 | 3721 DMU_POOL_DIRECTORY_OBJECT, entry, sizeof (uint64_t), 1, |
| 3722 &sav->sav_object, tx) == 0); | |
| 2082 | 3723 } |
| 3724 | |
| 3725 VERIFY(nvlist_alloc(&nvroot, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
| 5450 | 3726 if (sav->sav_count == 0) { |
| 3727 VERIFY(nvlist_add_nvlist_array(nvroot, config, NULL, 0) == 0); | |
| 2082 | 3728 } else { |
| 5450 | 3729 list = kmem_alloc(sav->sav_count * sizeof (void *), KM_SLEEP); |
| 3730 for (i = 0; i < sav->sav_count; i++) | |
| 3731 list[i] = vdev_config_generate(spa, sav->sav_vdevs[i], | |
| 3732 B_FALSE, B_FALSE, B_TRUE); | |
| 3733 VERIFY(nvlist_add_nvlist_array(nvroot, config, list, | |
| 3734 sav->sav_count) == 0); | |
| 3735 for (i = 0; i < sav->sav_count; i++) | |
| 3736 nvlist_free(list[i]); | |
| 3737 kmem_free(list, sav->sav_count * sizeof (void *)); | |
| 2082 | 3738 } |
| 3739 | |
| 5450 | 3740 spa_sync_nvlist(spa, sav->sav_object, nvroot, tx); |
| 2926 | 3741 nvlist_free(nvroot); |
| 2082 | 3742 |
| 5450 | 3743 sav->sav_sync = B_FALSE; |
| 2082 | 3744 } |
| 3745 | |
| 3746 static void | |
| 789 | 3747 spa_sync_config_object(spa_t *spa, dmu_tx_t *tx) |
| 3748 { | |
| 3749 nvlist_t *config; | |
| 3750 | |
|
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3751 if (list_is_empty(&spa->spa_config_dirty_list)) |
| 789 | 3752 return; |
| 3753 | |
|
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3754 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); |
|
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3755 |
|
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|
3756 config = spa_config_generate(spa, spa->spa_root_vdev, |
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3757 dmu_tx_get_txg(tx), B_FALSE); |
|
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3758 |
|
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|
3759 spa_config_exit(spa, SCL_STATE, FTAG); |
| 789 | 3760 |
|
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3761 if (spa->spa_config_syncing) |
|
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|
3762 nvlist_free(spa->spa_config_syncing); |
|
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|
3763 spa->spa_config_syncing = config; |
| 789 | 3764 |
| 2082 | 3765 spa_sync_nvlist(spa, spa->spa_config_object, config, tx); |
| 789 | 3766 } |
| 3767 | |
| 5094 | 3768 /* |
| 3769 * Set zpool properties. | |
| 3770 */ | |
| 3912 | 3771 static void |
| 4543 | 3772 spa_sync_props(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) |
| 3912 | 3773 { |
| 3774 spa_t *spa = arg1; | |
| 5094 | 3775 objset_t *mos = spa->spa_meta_objset; |
| 3912 | 3776 nvlist_t *nvp = arg2; |
| 5094 | 3777 nvpair_t *elem; |
| 4451 | 3778 uint64_t intval; |
|
6643
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6625086 changing cachefile doesn't remove old cache on last user
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changeset
|
3779 char *strval; |
| 5094 | 3780 zpool_prop_t prop; |
| 3781 const char *propname; | |
| 3782 zprop_type_t proptype; | |
|
6643
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|
3783 spa_config_dirent_t *dp; |
| 5094 | 3784 |
|
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|
3785 mutex_enter(&spa->spa_props_lock); |
|
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|
3786 |
| 5094 | 3787 elem = NULL; |
| 3788 while ((elem = nvlist_next_nvpair(nvp, elem))) { | |
| 3789 switch (prop = zpool_name_to_prop(nvpair_name(elem))) { | |
| 3790 case ZPOOL_PROP_VERSION: | |
| 3791 /* | |
| 3792 * Only set version for non-zpool-creation cases | |
| 3793 * (set/import). spa_create() needs special care | |
| 3794 * for version setting. | |
| 3795 */ | |
| 3796 if (tx->tx_txg != TXG_INITIAL) { | |
| 3797 VERIFY(nvpair_value_uint64(elem, | |
| 3798 &intval) == 0); | |
| 3799 ASSERT(intval <= SPA_VERSION); | |
| 3800 ASSERT(intval >= spa_version(spa)); | |
| 3801 spa->spa_uberblock.ub_version = intval; | |
| 3802 vdev_config_dirty(spa->spa_root_vdev); | |
| 3803 } | |
| 3804 break; | |
| 3805 | |
| 3806 case ZPOOL_PROP_ALTROOT: | |
| 3807 /* | |
| 3808 * 'altroot' is a non-persistent property. It should | |
| 3809 * have been set temporarily at creation or import time. | |
| 3810 */ | |
| 3811 ASSERT(spa->spa_root != NULL); | |
| 3812 break; | |
| 3813 | |
| 5363 | 3814 case ZPOOL_PROP_CACHEFILE: |
| 5094 | 3815 /* |
| 5363 | 3816 * 'cachefile' is a non-persistent property, but note |
| 3817 * an async request that the config cache needs to be | |
| 3818 * udpated. | |
| 5094 | 3819 */ |
| 5363 | 3820 VERIFY(nvpair_value_string(elem, &strval) == 0); |
|
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|
3821 |
|
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|
3822 dp = kmem_alloc(sizeof (spa_config_dirent_t), KM_SLEEP); |
|
6643
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|
3823 |
|
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|
3824 if (strval[0] == '\0') |
|
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6625086 changing cachefile doesn't remove old cache on last user
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|
3825 dp->scd_path = spa_strdup(spa_config_path); |
|
3a34b0dbb107
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|
3826 else if (strcmp(strval, "none") == 0) |
|
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|
3827 dp->scd_path = NULL; |
|
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|
3828 else |
|
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changeset
|
3829 dp->scd_path = spa_strdup(strval); |
|
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|
3830 |
|
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|
3831 list_insert_head(&spa->spa_config_list, dp); |
| 5363 | 3832 spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE); |
| 4543 | 3833 break; |
| 5094 | 3834 default: |
| 3835 /* | |
| 3836 * Set pool property values in the poolprops mos object. | |
| 3837 */ | |
| 3838 if (spa->spa_pool_props_object == 0) { | |
| 3839 objset_t *mos = spa->spa_meta_objset; | |
| 3840 | |
| 3841 VERIFY((spa->spa_pool_props_object = | |
| 3842 zap_create(mos, DMU_OT_POOL_PROPS, | |
| 3843 DMU_OT_NONE, 0, tx)) > 0); | |
| 3844 | |
| 3845 VERIFY(zap_update(mos, | |
| 3846 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_PROPS, | |
| 3847 8, 1, &spa->spa_pool_props_object, tx) | |
| 3848 == 0); | |
| 3849 } | |
| 3850 | |
| 3851 /* normalize the property name */ | |
| 3852 propname = zpool_prop_to_name(prop); | |
| 3853 proptype = zpool_prop_get_type(prop); | |
| 3854 | |
| 3855 if (nvpair_type(elem) == DATA_TYPE_STRING) { | |
| 3856 ASSERT(proptype == PROP_TYPE_STRING); | |
| 3857 VERIFY(nvpair_value_string(elem, &strval) == 0); | |
| 3858 VERIFY(zap_update(mos, | |
| 3859 spa->spa_pool_props_object, propname, | |
| 3860 1, strlen(strval) + 1, strval, tx) == 0); | |
| 3861 | |
| 3862 } else if (nvpair_type(elem) == DATA_TYPE_UINT64) { | |
| 3863 VERIFY(nvpair_value_uint64(elem, &intval) == 0); | |
| 3864 | |
| 3865 if (proptype == PROP_TYPE_INDEX) { | |
| 3866 const char *unused; | |
| 3867 VERIFY(zpool_prop_index_to_string( | |
| 3868 prop, intval, &unused) == 0); | |
| 3869 } | |
| 3870 VERIFY(zap_update(mos, | |
| 3871 spa->spa_pool_props_object, propname, | |
| 3872 8, 1, &intval, tx) == 0); | |
| 3873 } else { | |
| 3874 ASSERT(0); /* not allowed */ | |
| 3875 } | |
| 3876 | |
| 5329 | 3877 switch (prop) { |
| 3878 case ZPOOL_PROP_DELEGATION: | |
| 5094 | 3879 spa->spa_delegation = intval; |
| 5329 | 3880 break; |
| 3881 case ZPOOL_PROP_BOOTFS: | |
| 5094 | 3882 spa->spa_bootfs = intval; |
| 5329 | 3883 break; |
| 3884 case ZPOOL_PROP_FAILUREMODE: | |
| 3885 spa->spa_failmode = intval; | |
| 3886 break; | |
| 3887 default: | |
| 3888 break; | |
| 3889 } | |
| 3912 | 3890 } |
| 5094 | 3891 |
| 3892 /* log internal history if this is not a zpool create */ | |
| 3893 if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY && | |
| 3894 tx->tx_txg != TXG_INITIAL) { | |
| 3895 spa_history_internal_log(LOG_POOL_PROPSET, | |
| 3896 spa, tx, cr, "%s %lld %s", | |
|
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|
3897 nvpair_name(elem), intval, spa_name(spa)); |
| 5094 | 3898 } |
| 3912 | 3899 } |
|
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|
3900 |
|
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|
3901 mutex_exit(&spa->spa_props_lock); |
| 3912 | 3902 } |
| 3903 | |
| 789 | 3904 /* |
| 3905 * Sync the specified transaction group. New blocks may be dirtied as | |
| 3906 * part of the process, so we iterate until it converges. | |
| 3907 */ | |
| 3908 void | |
| 3909 spa_sync(spa_t *spa, uint64_t txg) | |
| 3910 { | |
| 3911 dsl_pool_t *dp = spa->spa_dsl_pool; | |
| 3912 objset_t *mos = spa->spa_meta_objset; | |
| 3913 bplist_t *bpl = &spa->spa_sync_bplist; | |
|
1635
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|
3914 vdev_t *rvd = spa->spa_root_vdev; |
| 789 | 3915 vdev_t *vd; |
| 3916 dmu_tx_t *tx; | |
| 3917 int dirty_vdevs; | |
|
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|
3918 int error; |
| 789 | 3919 |
| 3920 /* | |
| 3921 * Lock out configuration changes. | |
| 3922 */ | |
|
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|
3923 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); |
| 789 | 3924 |
| 3925 spa->spa_syncing_txg = txg; | |
| 3926 spa->spa_sync_pass = 0; | |
| 3927 | |
|
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|
3928 /* |
|
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|
3929 * If there are any pending vdev state changes, convert them |
|
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|
3930 * into config changes that go out with this transaction group. |
|
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|
3931 */ |
|
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|
3932 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); |
|
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|
3933 while ((vd = list_head(&spa->spa_state_dirty_list)) != NULL) { |
|
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|
3934 vdev_state_clean(vd); |
|
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|
3935 vdev_config_dirty(vd); |
|
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|
3936 } |
|
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|
3937 spa_config_exit(spa, SCL_STATE, FTAG); |
|
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|
3938 |
| 1544 | 3939 VERIFY(0 == bplist_open(bpl, mos, spa->spa_sync_bplist_obj)); |
| 789 | 3940 |
| 2082 | 3941 tx = dmu_tx_create_assigned(dp, txg); |
| 3942 | |
| 3943 /* | |
| 4577 | 3944 * If we are upgrading to SPA_VERSION_RAIDZ_DEFLATE this txg, |
| 2082 | 3945 * set spa_deflate if we have no raid-z vdevs. |
| 3946 */ | |
| 4577 | 3947 if (spa->spa_ubsync.ub_version < SPA_VERSION_RAIDZ_DEFLATE && |
| 3948 spa->spa_uberblock.ub_version >= SPA_VERSION_RAIDZ_DEFLATE) { | |
| 2082 | 3949 int i; |
| 3950 | |
| 3951 for (i = 0; i < rvd->vdev_children; i++) { | |
| 3952 vd = rvd->vdev_child[i]; | |
| 3953 if (vd->vdev_deflate_ratio != SPA_MINBLOCKSIZE) | |
| 3954 break; | |
| 3955 } | |
| 3956 if (i == rvd->vdev_children) { | |
| 3957 spa->spa_deflate = TRUE; | |
| 3958 VERIFY(0 == zap_add(spa->spa_meta_objset, | |
| 3959 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
| 3960 sizeof (uint64_t), 1, &spa->spa_deflate, tx)); | |
| 3961 } | |
| 3962 } | |
| 3963 | |
|
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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7042
diff
changeset
|
3964 if (spa->spa_ubsync.ub_version < SPA_VERSION_ORIGIN && |
|
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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7042
diff
changeset
|
3965 spa->spa_uberblock.ub_version >= SPA_VERSION_ORIGIN) { |
|
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
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7042
diff
changeset
|
3966 dsl_pool_create_origin(dp, tx); |
|
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
7042
diff
changeset
|
3967 |
|
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
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7042
diff
changeset
|
3968 /* Keeping the origin open increases spa_minref */ |
|
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
7042
diff
changeset
|
3969 spa->spa_minref += 3; |
|
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
7042
diff
changeset
|
3970 } |
|
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
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7042
diff
changeset
|
3971 |
|
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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7042
diff
changeset
|
3972 if (spa->spa_ubsync.ub_version < SPA_VERSION_NEXT_CLONES && |
|
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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diff
changeset
|
3973 spa->spa_uberblock.ub_version >= SPA_VERSION_NEXT_CLONES) { |
|
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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diff
changeset
|
3974 dsl_pool_upgrade_clones(dp, tx); |
|
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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parents:
7042
diff
changeset
|
3975 } |
|
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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diff
changeset
|
3976 |
| 789 | 3977 /* |
| 3978 * If anything has changed in this txg, push the deferred frees | |
| 3979 * from the previous txg. If not, leave them alone so that we | |
| 3980 * don't generate work on an otherwise idle system. | |
| 3981 */ | |
| 3982 if (!txg_list_empty(&dp->dp_dirty_datasets, txg) || | |
|
2329
e640bebc73b3
6446569 deferred list is hooked on flintstone vitamins
ek110237
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2199
diff
changeset
|
3983 !txg_list_empty(&dp->dp_dirty_dirs, txg) || |
|
e640bebc73b3
6446569 deferred list is hooked on flintstone vitamins
ek110237
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2199
diff
changeset
|
3984 !txg_list_empty(&dp->dp_sync_tasks, txg)) |
| 789 | 3985 spa_sync_deferred_frees(spa, txg); |
| 3986 | |
| 3987 /* | |
| 3988 * Iterate to convergence. | |
| 3989 */ | |
| 3990 do { | |
| 3991 spa->spa_sync_pass++; | |
| 3992 | |
| 3993 spa_sync_config_object(spa, tx); | |
| 5450 | 3994 spa_sync_aux_dev(spa, &spa->spa_spares, tx, |
| 3995 ZPOOL_CONFIG_SPARES, DMU_POOL_SPARES); | |
| 3996 spa_sync_aux_dev(spa, &spa->spa_l2cache, tx, | |
| 3997 ZPOOL_CONFIG_L2CACHE, DMU_POOL_L2CACHE); | |
| 1544 | 3998 spa_errlog_sync(spa, txg); |
| 789 | 3999 dsl_pool_sync(dp, txg); |
| 4000 | |
| 4001 dirty_vdevs = 0; | |
| 4002 while (vd = txg_list_remove(&spa->spa_vdev_txg_list, txg)) { | |
| 4003 vdev_sync(vd, txg); | |
| 4004 dirty_vdevs++; | |
| 4005 } | |
| 4006 | |
| 4007 bplist_sync(bpl, tx); | |
| 4008 } while (dirty_vdevs); | |
| 4009 | |
| 4010 bplist_close(bpl); | |
| 4011 | |
| 4012 dprintf("txg %llu passes %d\n", txg, spa->spa_sync_pass); | |
| 4013 | |
| 4014 /* | |
| 4015 * Rewrite the vdev configuration (which includes the uberblock) | |
| 4016 * to commit the transaction group. | |
|
1635
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|
4017 * |
|
5688
c0b02c8fd2c0
6640580 spa_get_random() is insanely slow in userland
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5621
diff
changeset
|
4018 * If there are no dirty vdevs, we sync the uberblock to a few |
|
c0b02c8fd2c0
6640580 spa_get_random() is insanely slow in userland
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5621
diff
changeset
|
4019 * random top-level vdevs that are known to be visible in the |
|
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4020 * config cache (see spa_vdev_add() for a complete description). |
|
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|
4021 * If there *are* dirty vdevs, sync the uberblock to all vdevs. |
| 789 | 4022 */ |
|
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4023 for (;;) { |
|
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4024 /* |
|
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|
4025 * We hold SCL_STATE to prevent vdev open/close/etc. |
|
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4026 * while we're attempting to write the vdev labels. |
|
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4027 */ |
|
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|
4028 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); |
|
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4029 |
|
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|
4030 if (list_is_empty(&spa->spa_config_dirty_list)) { |
|
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4031 vdev_t *svd[SPA_DVAS_PER_BP]; |
|
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4032 int svdcount = 0; |
|
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|
4033 int children = rvd->vdev_children; |
|
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|
4034 int c0 = spa_get_random(children); |
|
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4035 int c; |
|
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4036 |
|
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|
4037 for (c = 0; c < children; c++) { |
|
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|
4038 vd = rvd->vdev_child[(c0 + c) % children]; |
|
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|
4039 if (vd->vdev_ms_array == 0 || vd->vdev_islog) |
|
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4040 continue; |
|
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|
4041 svd[svdcount++] = vd; |
|
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changeset
|
4042 if (svdcount == SPA_DVAS_PER_BP) |
|
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|
4043 break; |
|
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|
4044 } |
|
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diff
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|
4045 error = vdev_config_sync(svd, svdcount, txg); |
|
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6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
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|
4046 } else { |
|
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|
4047 error = vdev_config_sync(rvd->vdev_child, |
|
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|
4048 rvd->vdev_children, txg); |
|
1635
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diff
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|
4049 } |
|
7754
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Jeff Bonwick <Jeff.Bonwick@Sun.COM>
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|
4050 |
|
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6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
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diff
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|
4051 spa_config_exit(spa, SCL_STATE, FTAG); |
|
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|
4052 |
|
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6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
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diff
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|
4053 if (error == 0) |
|
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
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|
4054 break; |
|
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
4055 zio_suspend(spa, NULL); |
|
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
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diff
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|
4056 zio_resume_wait(spa); |
|
1635
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6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
4057 } |
| 2082 | 4058 dmu_tx_commit(tx); |
| 4059 | |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
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|
4060 /* |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
4061 * Clear the dirty config list. |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
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1601
diff
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|
4062 */ |
|
7754
b80e4842ad54
6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
Jeff Bonwick <Jeff.Bonwick@Sun.COM>
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diff
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|
4063 while ((vd = list_head(&spa->spa_config_dirty_list)) != NULL) |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
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1601
diff
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|
4064 vdev_config_clean(vd); |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
4065 |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
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diff
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|
4066 /* |
|
0ab1193d47cb
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bonwick
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|
4067 * Now that the new config has synced transactionally, |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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diff
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|
4068 * let it become visible to the config cache. |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
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1601
diff
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|
4069 */ |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
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1601
diff
changeset
|
4070 if (spa->spa_config_syncing != NULL) { |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
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diff
changeset
|
4071 spa_config_set(spa, spa->spa_config_syncing); |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
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|
4072 spa->spa_config_txg = txg; |
|
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6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
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diff
changeset
|
4073 spa->spa_config_syncing = NULL; |
|
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6398664 zpool detach: missing argument to error message causes core dump
bonwick
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1601
diff
changeset
|
4074 } |
| 789 | 4075 |
| 4076 spa->spa_ubsync = spa->spa_uberblock; | |
| 4077 | |
| 4078 /* | |
| 4079 * Clean up the ZIL records for the synced txg. | |
| 4080 */ | |
| 4081 dsl_pool_zil_clean(dp); | |
| 4082 | |
| 4083 /* | |
| 4084 * Update usable space statistics. | |
| 4085 */ | |
| 4086 while (vd = txg_list_remove(&spa->spa_vdev_txg_list, TXG_CLEAN(txg))) | |
| 4087 vdev_sync_done(vd, txg); | |
| 4088 | |
| 4089 /* | |
| 4090 * It had better be the case that we didn't dirty anything | |
| 2082 | 4091 * since vdev_config_sync(). |
| 789 | 4092 */ |
| 4093 ASSERT(txg_list_empty(&dp->dp_dirty_datasets, txg)); | |
| 4094 ASSERT(txg_list_empty(&dp->dp_dirty_dirs, txg)); | |
| 4095 ASSERT(txg_list_empty(&spa->spa_vdev_txg_list, txg)); | |
| 4096 ASSERT(bpl->bpl_queue == NULL); | |
| 4097 | |
|
7754
b80e4842ad54
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Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
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diff
changeset
|
4098 spa_config_exit(spa, SCL_CONFIG, FTAG); |
| 1544 | 4099 |
| 4100 /* | |
| 4101 * If any async tasks have been requested, kick them off. | |
| 4102 */ | |
| 4103 spa_async_dispatch(spa); | |
| 789 | 4104 } |
| 4105 | |
| 4106 /* | |
| 4107 * Sync all pools. We don't want to hold the namespace lock across these | |
| 4108 * operations, so we take a reference on the spa_t and drop the lock during the | |
| 4109 * sync. | |
| 4110 */ | |
| 4111 void | |
| 4112 spa_sync_allpools(void) | |
| 4113 { | |
| 4114 spa_t *spa = NULL; | |
| 4115 mutex_enter(&spa_namespace_lock); | |
| 4116 while ((spa = spa_next(spa)) != NULL) { | |
|
7754
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diff
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|
4117 if (spa_state(spa) != POOL_STATE_ACTIVE || spa_suspended(spa)) |
| 789 | 4118 continue; |
| 4119 spa_open_ref(spa, FTAG); | |
| 4120 mutex_exit(&spa_namespace_lock); | |
| 4121 txg_wait_synced(spa_get_dsl(spa), 0); | |
| 4122 mutex_enter(&spa_namespace_lock); | |
| 4123 spa_close(spa, FTAG); | |
| 4124 } | |
| 4125 mutex_exit(&spa_namespace_lock); | |
| 4126 } | |
| 4127 | |
| 4128 /* | |
| 4129 * ========================================================================== | |
| 4130 * Miscellaneous routines | |
| 4131 * ========================================================================== | |
| 4132 */ | |
| 4133 | |
| 4134 /* | |
| 4135 * Remove all pools in the system. | |
| 4136 */ | |
| 4137 void | |
| 4138 spa_evict_all(void) | |
| 4139 { | |
| 4140 spa_t *spa; | |
| 4141 | |
| 4142 /* | |
| 4143 * Remove all cached state. All pools should be closed now, | |
| 4144 * so every spa in the AVL tree should be unreferenced. | |
| 4145 */ | |
| 4146 mutex_enter(&spa_namespace_lock); | |
| 4147 while ((spa = spa_next(NULL)) != NULL) { | |
| 4148 /* | |
| 1544 | 4149 * Stop async tasks. The async thread may need to detach |
| 4150 * a device that's been replaced, which requires grabbing | |
| 4151 * spa_namespace_lock, so we must drop it here. | |
| 789 | 4152 */ |
| 4153 spa_open_ref(spa, FTAG); | |
| 4154 mutex_exit(&spa_namespace_lock); | |
| 1544 | 4155 spa_async_suspend(spa); |
| 4808 | 4156 mutex_enter(&spa_namespace_lock); |
| 789 | 4157 spa_close(spa, FTAG); |
| 4158 | |
| 4159 if (spa->spa_state != POOL_STATE_UNINITIALIZED) { | |
| 4160 spa_unload(spa); | |
| 4161 spa_deactivate(spa); | |
| 4162 } | |
| 4163 spa_remove(spa); | |
| 4164 } | |
| 4165 mutex_exit(&spa_namespace_lock); | |
| 4166 } | |
| 1544 | 4167 |
| 4168 vdev_t * | |
|
6643
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6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
changeset
|
4169 spa_lookup_by_guid(spa_t *spa, uint64_t guid, boolean_t l2cache) |
| 1544 | 4170 { |
|
6643
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
changeset
|
4171 vdev_t *vd; |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
changeset
|
4172 int i; |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
changeset
|
4173 |
|
3a34b0dbb107
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eschrock
parents:
6615
diff
changeset
|
4174 if ((vd = vdev_lookup_by_guid(spa->spa_root_vdev, guid)) != NULL) |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
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diff
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|
4175 return (vd); |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
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|
4176 |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
changeset
|
4177 if (l2cache) { |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
changeset
|
4178 for (i = 0; i < spa->spa_l2cache.sav_count; i++) { |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
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diff
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|
4179 vd = spa->spa_l2cache.sav_vdevs[i]; |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
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diff
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|
4180 if (vd->vdev_guid == guid) |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
changeset
|
4181 return (vd); |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
changeset
|
4182 } |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
changeset
|
4183 } |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
eschrock
parents:
6615
diff
changeset
|
4184 |
|
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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parents:
6615
diff
changeset
|
4185 return (NULL); |
| 1544 | 4186 } |
| 1760 | 4187 |
| 4188 void | |
| 5094 | 4189 spa_upgrade(spa_t *spa, uint64_t version) |
| 1760 | 4190 { |
|
7754
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Jeff Bonwick <Jeff.Bonwick@Sun.COM>
parents:
7706
diff
changeset
|
4191 spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
| 1760 | 4192 |
| 4193 /* | |
| 4194 * This should only be called for a non-faulted pool, and since a | |
| 4195 * future version would result in an unopenable pool, this shouldn't be | |
| 4196 * possible. | |
| 4197 */ | |
| 4577 | 4198 ASSERT(spa->spa_uberblock.ub_version <= SPA_VERSION); |
| 5094 | 4199 ASSERT(version >= spa->spa_uberblock.ub_version); |
| 4200 | |
| 4201 spa->spa_uberblock.ub_version = version; | |
| 1760 | 4202 vdev_config_dirty(spa->spa_root_vdev); |
| 4203 | |
|
7754
b80e4842ad54
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Jeff Bonwick <Jeff.Bonwick@Sun.COM>
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diff
changeset
|
4204 spa_config_exit(spa, SCL_ALL, FTAG); |
| 2082 | 4205 |
| 4206 txg_wait_synced(spa_get_dsl(spa), 0); | |
| 1760 | 4207 } |
| 2082 | 4208 |
| 4209 boolean_t | |
| 4210 spa_has_spare(spa_t *spa, uint64_t guid) | |
| 4211 { | |
| 4212 int i; | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
4213 uint64_t spareguid; |
| 5450 | 4214 spa_aux_vdev_t *sav = &spa->spa_spares; |
| 4215 | |
| 4216 for (i = 0; i < sav->sav_count; i++) | |
| 4217 if (sav->sav_vdevs[i]->vdev_guid == guid) | |
| 2082 | 4218 return (B_TRUE); |
| 4219 | |
| 5450 | 4220 for (i = 0; i < sav->sav_npending; i++) { |
| 4221 if (nvlist_lookup_uint64(sav->sav_pending[i], ZPOOL_CONFIG_GUID, | |
| 4222 &spareguid) == 0 && spareguid == guid) | |
|
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
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3290
diff
changeset
|
4223 return (B_TRUE); |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
4224 } |
|
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
4225 |
| 2082 | 4226 return (B_FALSE); |
| 4227 } | |
| 3912 | 4228 |
| 4451 | 4229 /* |
|
7214
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
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7184
diff
changeset
|
4230 * 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
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7184
diff
changeset
|
4231 * 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
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7184
diff
changeset
|
4232 */ |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
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7184
diff
changeset
|
4233 static boolean_t |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
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7184
diff
changeset
|
4234 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
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diff
changeset
|
4235 { |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
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diff
changeset
|
4236 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
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7184
diff
changeset
|
4237 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
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7184
diff
changeset
|
4238 spa_aux_vdev_t *sav = &spa->spa_spares; |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
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diff
changeset
|
4239 |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
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diff
changeset
|
4240 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
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diff
changeset
|
4241 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
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7184
diff
changeset
|
4242 &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
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7184
diff
changeset
|
4243 refcnt > 2) |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
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7184
diff
changeset
|
4244 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
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7184
diff
changeset
|
4245 } |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
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7184
diff
changeset
|
4246 |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
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7184
diff
changeset
|
4247 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
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7184
diff
changeset
|
4248 } |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
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diff
changeset
|
4249 |
|
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
lling
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7184
diff
changeset
|
4250 /* |
| 4451 | 4251 * Post a sysevent corresponding to the given event. The 'name' must be one of |
| 4252 * the event definitions in sys/sysevent/eventdefs.h. The payload will be | |
| 4253 * filled in from the spa and (optionally) the vdev. This doesn't do anything | |
| 4254 * in the userland libzpool, as we don't want consumers to misinterpret ztest | |
| 4255 * or zdb as real changes. | |
| 4256 */ | |
| 4257 void | |
| 4258 spa_event_notify(spa_t *spa, vdev_t *vd, const char *name) | |
| 4259 { | |
| 4260 #ifdef _KERNEL | |
| 4261 sysevent_t *ev; | |
| 4262 sysevent_attr_list_t *attr = NULL; | |
| 4263 sysevent_value_t value; | |
| 4264 sysevent_id_t eid; | |
| 4265 | |
| 4266 ev = sysevent_alloc(EC_ZFS, (char *)name, SUNW_KERN_PUB "zfs", | |
| 4267 SE_SLEEP); | |
| 4268 | |
| 4269 value.value_type = SE_DATA_TYPE_STRING; | |
| 4270 value.value.sv_string = spa_name(spa); | |
| 4271 if (sysevent_add_attr(&attr, ZFS_EV_POOL_NAME, &value, SE_SLEEP) != 0) | |
| 4272 goto done; | |
| 4273 | |
| 4274 value.value_type = SE_DATA_TYPE_UINT64; | |
| 4275 value.value.sv_uint64 = spa_guid(spa); | |
| 4276 if (sysevent_add_attr(&attr, ZFS_EV_POOL_GUID, &value, SE_SLEEP) != 0) | |
| 4277 goto done; | |
| 4278 | |
| 4279 if (vd) { | |
| 4280 value.value_type = SE_DATA_TYPE_UINT64; | |
| 4281 value.value.sv_uint64 = vd->vdev_guid; | |
| 4282 if (sysevent_add_attr(&attr, ZFS_EV_VDEV_GUID, &value, | |
| 4283 SE_SLEEP) != 0) | |
| 4284 goto done; | |
| 4285 | |
| 4286 if (vd->vdev_path) { | |
| 4287 value.value_type = SE_DATA_TYPE_STRING; | |
| 4288 value.value.sv_string = vd->vdev_path; | |
| 4289 if (sysevent_add_attr(&attr, ZFS_EV_VDEV_PATH, | |
| 4290 &value, SE_SLEEP) != 0) | |
| 4291 goto done; | |
| 4292 } | |
| 4293 } | |
| 4294 | |
|
5756
05eb4c1ff492
6585441 spa_event_notify() doesn't pass its attributes
eschrock
parents:
5688
diff
changeset
|
4295 if (sysevent_attach_attributes(ev, attr) != 0) |
|
05eb4c1ff492
6585441 spa_event_notify() doesn't pass its attributes
eschrock
parents:
5688
diff
changeset
|
4296 goto done; |
|
05eb4c1ff492
6585441 spa_event_notify() doesn't pass its attributes
eschrock
parents:
5688
diff
changeset
|
4297 attr = NULL; |
|
05eb4c1ff492
6585441 spa_event_notify() doesn't pass its attributes
eschrock
parents:
5688
diff
changeset
|
4298 |
| 4451 | 4299 (void) log_sysevent(ev, SE_SLEEP, &eid); |
| 4300 | |
| 4301 done: | |
| 4302 if (attr) | |
| 4303 sysevent_free_attr(attr); | |
| 4304 sysevent_free(ev); | |
| 4305 #endif | |
| 4306 } |