Mercurial > illumos > illumos-gate
annotate usr/src/uts/common/fs/zfs/spa.c @ 7793:4dbbc0a3f135
6755897 recursive mutex enter in spa_vdev_enter when running test suite
author | Jeff Bonwick <Jeff.Bonwick@Sun.COM> |
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date | Thu, 09 Oct 2008 18:07:16 -0700 |
parents | b80e4842ad54 |
children | 001de5627df3 |
rev | line source |
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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 } |
7377
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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]; | |
3377
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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 | |
3377
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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) { |
3377
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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:
1601
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:
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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>
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diff
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|
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
parents:
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
b80e4842ad54
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
b80e4842ad54
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
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1355 if (autoreplace && state != SPA_LOAD_TRYIMPORT) |
4451 | 1356 spa_check_removed(spa->spa_root_vdev); |
1357 | |
1358 /* | |
1986
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6424405 zpool import destroyed_pool can damage existing pool using same devices
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1359 * Load the vdev state for all toplevel vdevs. |
789 | 1360 */ |
1986
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1361 vdev_load(rvd); |
789 | 1362 |
1363 /* | |
1364 * Propagate the leaf DTLs we just loaded all the way up the tree. | |
1365 */ | |
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1366 spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
789 | 1367 vdev_dtl_reassess(rvd, 0, 0, B_FALSE); |
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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
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1380 dmu_tx_t *tx; |
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1381 int need_update = B_FALSE; |
1585
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1382 int c; |
1601
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1383 |
1635
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1384 /* |
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1385 * Claim log blocks that haven't been committed yet. |
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1386 * This must all happen in a single txg. |
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1387 */ |
1601
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1388 tx = dmu_tx_create_assigned(spa_get_dsl(spa), |
789 | 1389 spa_first_txg(spa)); |
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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
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1401 |
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|
1402 /* |
1635
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1403 * If the config cache is stale, or we have uninitialized |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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1404 * metaslabs (see spa_vdev_add()), then update the config. |
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
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1405 */ |
1635
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6398664 zpool detach: missing argument to error message causes core dump
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1406 if (config_cache_txg != spa->spa_config_txg || |
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1407 state == SPA_LOAD_IMPORT) |
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1408 need_update = B_TRUE; |
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1409 |
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1410 for (c = 0; c < rvd->vdev_children; c++) |
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1411 if (rvd->vdev_child[c]->vdev_ms_array == 0) |
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1412 need_update = B_TRUE; |
1585
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1413 |
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1414 /* |
1635
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1415 * Update the config cache asychronously in case we're the |
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1416 * root pool, in which case the config cache isn't writable yet. |
1585
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6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
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|
1417 */ |
1635
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1418 if (need_update) |
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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
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diff
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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
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1474 error = spa_load(spa, spa->spa_config, SPA_LOAD_OPEN, B_FALSE); |
789 | 1475 |
1476 if (error == EBADF) { | |
1477 /* | |
1986
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1478 * If vdev_validate() returns failure (indicated by |
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6424405 zpool import destroyed_pool can damage existing pool using same devices
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|
1479 * EBADF), it indicates that one of the vdevs indicates |
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1480 * that the pool has been exported or destroyed. If |
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1481 * this is the case, the config cache is out of sync and |
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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
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diff
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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
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6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
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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 | |
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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; | |
3377
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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); | |
7214
04c540040a32
6721908 A hot spare "in use" in an exported zpool, is stolen when a disk fails in an imported pool.
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changeset
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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.
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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 | |
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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 | |
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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 | |
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1677 if (spa_suspended(spa)) |
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1678 VERIFY(nvlist_add_uint64(*config, |
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1679 ZPOOL_CONFIG_SUSPENDED, spa->spa_failmode) == 0); |
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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 | |
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1726 ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL); |
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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 | |
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1744 /* |
5450 | 1745 * Set the pending device list so we correctly handle device in-use |
3377
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1746 * checking. |
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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) |
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1754 goto out; |
2082 | 1755 |
1756 if (!vd->vdev_ops->vdev_op_leaf) { | |
1757 vdev_free(vd); | |
3377
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1758 error = EINVAL; |
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1759 goto out; |
2082 | 1760 } |
1761 | |
5450 | 1762 /* |
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1763 * The L2ARC currently only supports disk devices in |
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1764 * kernel context. For user-level testing, we allow it. |
5450 | 1765 */ |
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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 } | |
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1772 #endif |
2082 | 1773 vd->vdev_top = vd; |
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1774 |
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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
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1778 vd->vdev_guid) == 0); |
2082 | 1779 } |
1780 | |
1781 vdev_free(vd); | |
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1782 |
5450 | 1783 if (error && |
1784 (mode != VDEV_ALLOC_SPARE && mode != VDEV_ALLOC_L2CACHE)) | |
3377
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1785 goto out; |
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1786 else |
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1787 error = 0; |
2082 | 1788 } |
1789 | |
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1790 out: |
5450 | 1791 sav->sav_pending = NULL; |
1792 sav->sav_npending = 0; | |
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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 | |
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1801 ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL); |
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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 | |
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1876 if ((spa_mode & FWRITE) && |
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1877 spa_l2cache_exists(vd->vdev_guid, &pool) && pool != 0ULL && |
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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, |
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1893 const char *history_str, nvlist_t *zplprops) |
789 | 1894 { |
1895 spa_t *spa; | |
5094 | 1896 char *altroot = NULL; |
1635
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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
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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 | |
1635
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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 | |
5913
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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); | |
1635
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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, | |
7497
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changeset
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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); | |
2103 if (spa_lookup(pool) != NULL) { | |
2104 mutex_exit(&spa_namespace_lock); | |
2105 return (EEXIST); | |
2106 } | |
2107 | |
2108 /* | |
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2109 * Create and initialize the spa structure. |
789 | 2110 */ |
5094 | 2111 (void) nvlist_lookup_string(props, |
2112 zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot); | |
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2113 spa = spa_add(pool, altroot); |
789 | 2114 spa_activate(spa); |
2115 | |
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2116 if (allowfaulted) |
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2117 spa->spa_import_faulted = B_TRUE; |
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2118 spa->spa_is_root = isroot; |
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2119 |
789 | 2120 /* |
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2121 * Pass off the heavy lifting to spa_load(). |
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2122 * Pass TRUE for mosconfig (unless this is a root pool) because |
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2123 * the user-supplied config is actually the one to trust when |
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2124 * doing an import. |
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2125 */ |
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2126 loaderr = error = spa_load(spa, config, SPA_LOAD_IMPORT, !isroot); |
789 | 2127 |
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2128 spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
2082 | 2129 /* |
2130 * Toss any existing sparelist, as it doesn't have any validity anymore, | |
2131 * and conflicts with spa_has_spare(). | |
2132 */ | |
6423 | 2133 if (!isroot && spa->spa_spares.sav_config) { |
5450 | 2134 nvlist_free(spa->spa_spares.sav_config); |
2135 spa->spa_spares.sav_config = NULL; | |
2082 | 2136 spa_load_spares(spa); |
2137 } | |
6423 | 2138 if (!isroot && spa->spa_l2cache.sav_config) { |
5450 | 2139 nvlist_free(spa->spa_l2cache.sav_config); |
2140 spa->spa_l2cache.sav_config = NULL; | |
2141 spa_load_l2cache(spa); | |
2142 } | |
2082 | 2143 |
2144 VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, | |
2145 &nvroot) == 0); | |
5450 | 2146 if (error == 0) |
2147 error = spa_validate_aux(spa, nvroot, -1ULL, VDEV_ALLOC_SPARE); | |
2148 if (error == 0) | |
2149 error = spa_validate_aux(spa, nvroot, -1ULL, | |
2150 VDEV_ALLOC_L2CACHE); | |
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2151 spa_config_exit(spa, SCL_ALL, FTAG); |
2082 | 2152 |
5094 | 2153 if (error != 0 || (props && (error = spa_prop_set(spa, props)))) { |
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2154 if (loaderr != 0 && loaderr != EINVAL && allowfaulted) { |
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2155 /* |
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2156 * If we failed to load the pool, but 'allowfaulted' is |
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2157 * set, then manually set the config as if the config |
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2158 * passed in was specified in the cache file. |
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2159 */ |
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2160 error = 0; |
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2161 spa->spa_import_faulted = B_FALSE; |
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2162 if (spa->spa_config == NULL) |
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2163 spa->spa_config = spa_config_generate(spa, |
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2164 NULL, -1ULL, B_TRUE); |
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2165 spa_unload(spa); |
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2166 spa_deactivate(spa); |
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2167 spa_config_sync(spa, B_FALSE, B_TRUE); |
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2168 } else { |
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2169 spa_unload(spa); |
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2170 spa_deactivate(spa); |
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2171 spa_remove(spa); |
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2172 } |
789 | 2173 mutex_exit(&spa_namespace_lock); |
2174 return (error); | |
2175 } | |
2176 | |
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2177 /* |
5450 | 2178 * Override any spares and level 2 cache devices as specified by |
2179 * the user, as these may have correct device names/devids, etc. | |
2082 | 2180 */ |
2181 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
2182 &spares, &nspares) == 0) { | |
5450 | 2183 if (spa->spa_spares.sav_config) |
2184 VERIFY(nvlist_remove(spa->spa_spares.sav_config, | |
2082 | 2185 ZPOOL_CONFIG_SPARES, DATA_TYPE_NVLIST_ARRAY) == 0); |
2186 else | |
5450 | 2187 VERIFY(nvlist_alloc(&spa->spa_spares.sav_config, |
2082 | 2188 NV_UNIQUE_NAME, KM_SLEEP) == 0); |
5450 | 2189 VERIFY(nvlist_add_nvlist_array(spa->spa_spares.sav_config, |
2082 | 2190 ZPOOL_CONFIG_SPARES, spares, nspares) == 0); |
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2191 spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
2082 | 2192 spa_load_spares(spa); |
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2193 spa_config_exit(spa, SCL_ALL, FTAG); |
5450 | 2194 spa->spa_spares.sav_sync = B_TRUE; |
2195 } | |
2196 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, | |
2197 &l2cache, &nl2cache) == 0) { | |
2198 if (spa->spa_l2cache.sav_config) | |
2199 VERIFY(nvlist_remove(spa->spa_l2cache.sav_config, | |
2200 ZPOOL_CONFIG_L2CACHE, DATA_TYPE_NVLIST_ARRAY) == 0); | |
2201 else | |
2202 VERIFY(nvlist_alloc(&spa->spa_l2cache.sav_config, | |
2203 NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2204 VERIFY(nvlist_add_nvlist_array(spa->spa_l2cache.sav_config, | |
2205 ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache) == 0); | |
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2206 spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
5450 | 2207 spa_load_l2cache(spa); |
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2208 spa_config_exit(spa, SCL_ALL, FTAG); |
5450 | 2209 spa->spa_l2cache.sav_sync = B_TRUE; |
2082 | 2210 } |
2211 | |
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2212 if (spa_mode & FWRITE) { |
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2213 /* |
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2214 * Update the config cache to include the newly-imported pool. |
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2215 */ |
6423 | 2216 spa_config_update_common(spa, SPA_CONFIG_UPDATE_POOL, isroot); |
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2217 } |
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2218 |
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2219 spa->spa_import_faulted = B_FALSE; |
4451 | 2220 mutex_exit(&spa_namespace_lock); |
2221 | |
789 | 2222 return (0); |
2223 } | |
2224 | |
6423 | 2225 #ifdef _KERNEL |
2226 /* | |
2227 * Build a "root" vdev for a top level vdev read in from a rootpool | |
2228 * device label. | |
2229 */ | |
2230 static void | |
2231 spa_build_rootpool_config(nvlist_t *config) | |
2232 { | |
2233 nvlist_t *nvtop, *nvroot; | |
2234 uint64_t pgid; | |
2235 | |
2236 /* | |
2237 * Add this top-level vdev to the child array. | |
2238 */ | |
2239 VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvtop) | |
2240 == 0); | |
2241 VERIFY(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &pgid) | |
2242 == 0); | |
2243 | |
2244 /* | |
2245 * Put this pool's top-level vdevs into a root vdev. | |
2246 */ | |
2247 VERIFY(nvlist_alloc(&nvroot, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2248 VERIFY(nvlist_add_string(nvroot, ZPOOL_CONFIG_TYPE, VDEV_TYPE_ROOT) | |
2249 == 0); | |
2250 VERIFY(nvlist_add_uint64(nvroot, ZPOOL_CONFIG_ID, 0ULL) == 0); | |
2251 VERIFY(nvlist_add_uint64(nvroot, ZPOOL_CONFIG_GUID, pgid) == 0); | |
2252 VERIFY(nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN, | |
2253 &nvtop, 1) == 0); | |
2254 | |
2255 /* | |
2256 * Replace the existing vdev_tree with the new root vdev in | |
2257 * this pool's configuration (remove the old, add the new). | |
2258 */ | |
2259 VERIFY(nvlist_add_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, nvroot) == 0); | |
2260 nvlist_free(nvroot); | |
2261 } | |
2262 | |
2263 /* | |
2264 * Get the root pool information from the root disk, then import the root pool | |
2265 * during the system boot up time. | |
2266 */ | |
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2267 extern int vdev_disk_read_rootlabel(char *, char *, nvlist_t **); |
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2268 |
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2269 int |
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2270 spa_check_rootconf(char *devpath, char *devid, nvlist_t **bestconf, |
6423 | 2271 uint64_t *besttxg) |
2272 { | |
2273 nvlist_t *config; | |
2274 uint64_t txg; | |
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2275 int error; |
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2276 |
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2277 if (error = vdev_disk_read_rootlabel(devpath, devid, &config)) |
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2278 return (error); |
6423 | 2279 |
2280 VERIFY(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG, &txg) == 0); | |
2281 | |
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2282 if (bestconf != NULL) |
6423 | 2283 *bestconf = config; |
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2284 else |
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2285 nvlist_free(config); |
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2286 *besttxg = txg; |
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2287 return (0); |
6423 | 2288 } |
2289 | |
2290 boolean_t | |
2291 spa_rootdev_validate(nvlist_t *nv) | |
2292 { | |
2293 uint64_t ival; | |
2294 | |
2295 if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_OFFLINE, &ival) == 0 || | |
2296 nvlist_lookup_uint64(nv, ZPOOL_CONFIG_FAULTED, &ival) == 0 || | |
2297 nvlist_lookup_uint64(nv, ZPOOL_CONFIG_REMOVED, &ival) == 0) | |
2298 return (B_FALSE); | |
2299 | |
2300 return (B_TRUE); | |
2301 } | |
2302 | |
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|
2303 |
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diff
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|
2304 /* |
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diff
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|
2305 * Given the boot device's physical path or devid, check if the device |
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|
2306 * is in a valid state. If so, return the configuration from the vdev |
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diff
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|
2307 * label. |
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|
2308 */ |
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diff
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|
2309 int |
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diff
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|
2310 spa_get_rootconf(char *devpath, char *devid, nvlist_t **bestconf) |
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diff
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|
2311 { |
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|
2312 nvlist_t *conf = NULL; |
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changeset
|
2313 uint64_t txg = 0; |
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diff
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|
2314 nvlist_t *nvtop, **child; |
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diff
changeset
|
2315 char *type; |
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diff
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|
2316 char *bootpath = NULL; |
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diff
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|
2317 uint_t children, c; |
1e1d75c88283
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diff
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|
2318 char *tmp; |
7539
e3f4b4b9f982
6724326 better "can't mountroot" message
Lin Ling <Lin.Ling@Sun.COM>
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7538
diff
changeset
|
2319 int error; |
7147
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diff
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|
2320 |
1e1d75c88283
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diff
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|
2321 if (devpath && ((tmp = strchr(devpath, ' ')) != NULL)) |
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diff
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|
2322 *tmp = '\0'; |
7539
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6724326 better "can't mountroot" message
Lin Ling <Lin.Ling@Sun.COM>
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diff
changeset
|
2323 if (error = spa_check_rootconf(devpath, devid, &conf, &txg)) { |
7147
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|
2324 cmn_err(CE_NOTE, "error reading device label"); |
7539
e3f4b4b9f982
6724326 better "can't mountroot" message
Lin Ling <Lin.Ling@Sun.COM>
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7538
diff
changeset
|
2325 return (error); |
7147
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diff
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|
2326 } |
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diff
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|
2327 if (txg == 0) { |
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|
2328 cmn_err(CE_NOTE, "this device is detached"); |
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diff
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|
2329 nvlist_free(conf); |
1e1d75c88283
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|
2330 return (EINVAL); |
1e1d75c88283
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diff
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|
2331 } |
1e1d75c88283
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diff
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|
2332 |
1e1d75c88283
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|
2333 VERIFY(nvlist_lookup_nvlist(conf, ZPOOL_CONFIG_VDEV_TREE, |
1e1d75c88283
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diff
changeset
|
2334 &nvtop) == 0); |
1e1d75c88283
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diff
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|
2335 VERIFY(nvlist_lookup_string(nvtop, ZPOOL_CONFIG_TYPE, &type) == 0); |
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|
2336 |
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|
2337 if (strcmp(type, VDEV_TYPE_DISK) == 0) { |
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diff
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|
2338 if (spa_rootdev_validate(nvtop)) { |
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diff
changeset
|
2339 goto out; |
1e1d75c88283
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diff
changeset
|
2340 } else { |
1e1d75c88283
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diff
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|
2341 nvlist_free(conf); |
1e1d75c88283
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diff
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|
2342 return (EINVAL); |
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diff
changeset
|
2343 } |
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|
2344 } |
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diff
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|
2345 |
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|
2346 ASSERT(strcmp(type, VDEV_TYPE_MIRROR) == 0); |
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diff
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|
2347 |
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diff
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|
2348 VERIFY(nvlist_lookup_nvlist_array(nvtop, ZPOOL_CONFIG_CHILDREN, |
1e1d75c88283
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diff
changeset
|
2349 &child, &children) == 0); |
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diff
changeset
|
2350 |
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diff
changeset
|
2351 /* |
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diff
changeset
|
2352 * Go thru vdevs in the mirror to see if the given device |
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diff
changeset
|
2353 * has the most recent txg. Only the device with the most |
1e1d75c88283
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diff
changeset
|
2354 * recent txg has valid information and should be booted. |
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diff
changeset
|
2355 */ |
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diff
changeset
|
2356 for (c = 0; c < children; c++) { |
1e1d75c88283
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parents:
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diff
changeset
|
2357 char *cdevid, *cpath; |
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diff
changeset
|
2358 uint64_t tmptxg; |
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diff
changeset
|
2359 |
1e1d75c88283
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diff
changeset
|
2360 if (nvlist_lookup_string(child[c], ZPOOL_CONFIG_PHYS_PATH, |
1e1d75c88283
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diff
changeset
|
2361 &cpath) != 0) |
1e1d75c88283
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diff
changeset
|
2362 return (EINVAL); |
1e1d75c88283
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diff
changeset
|
2363 if (nvlist_lookup_string(child[c], ZPOOL_CONFIG_DEVID, |
1e1d75c88283
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parents:
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diff
changeset
|
2364 &cdevid) != 0) |
1e1d75c88283
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parents:
7046
diff
changeset
|
2365 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
|
2366 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
|
2367 &tmptxg) == 0) && (tmptxg > txg)) { |
7147
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parents:
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diff
changeset
|
2368 txg = tmptxg; |
1e1d75c88283
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diff
changeset
|
2369 VERIFY(nvlist_lookup_string(child[c], |
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diff
changeset
|
2370 ZPOOL_CONFIG_PATH, &bootpath) == 0); |
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diff
changeset
|
2371 } |
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diff
changeset
|
2372 } |
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diff
changeset
|
2373 |
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diff
changeset
|
2374 /* Does the best device match the one we've booted from? */ |
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diff
changeset
|
2375 if (bootpath) { |
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diff
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|
2376 cmn_err(CE_NOTE, "try booting from '%s'", bootpath); |
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diff
changeset
|
2377 return (EINVAL); |
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diff
changeset
|
2378 } |
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diff
changeset
|
2379 out: |
1e1d75c88283
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diff
changeset
|
2380 *bestconf = conf; |
1e1d75c88283
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parents:
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diff
changeset
|
2381 return (0); |
1e1d75c88283
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diff
changeset
|
2382 } |
1e1d75c88283
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diff
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|
2383 |
6423 | 2384 /* |
2385 * Import a root pool. | |
2386 * | |
7147
1e1d75c88283
6704717 ZFS mirrored root doesn't live up to expectations
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parents:
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diff
changeset
|
2387 * For x86. devpath_list will consist of devid and/or physpath name of |
1e1d75c88283
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diff
changeset
|
2388 * the vdev (e.g. "id1,sd@SSEAGATE..." or "/pci@1f,0/ide@d/disk@0,0:a"). |
1e1d75c88283
6704717 ZFS mirrored root doesn't live up to expectations
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diff
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|
2389 * The GRUB "findroot" command will return the vdev we should boot. |
6423 | 2390 * |
2391 * For Sparc, devpath_list consists the physpath name of the booting device | |
2392 * no matter the rootpool is a single device pool or a mirrored pool. | |
2393 * e.g. | |
2394 * "/pci@1f,0/ide@d/disk@0,0:a" | |
2395 */ | |
2396 int | |
7147
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diff
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|
2397 spa_import_rootpool(char *devpath, char *devid) |
6423 | 2398 { |
2399 nvlist_t *conf = NULL; | |
2400 char *pname; | |
2401 int error; | |
2402 | |
2403 /* | |
2404 * Get the vdev pathname and configuation from the most | |
2405 * recently updated vdev (highest txg). | |
2406 */ | |
7147
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diff
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|
2407 if (error = spa_get_rootconf(devpath, devid, &conf)) |
6423 | 2408 goto msg_out; |
2409 | |
2410 /* | |
2411 * Add type "root" vdev to the config. | |
2412 */ | |
2413 spa_build_rootpool_config(conf); | |
2414 | |
2415 VERIFY(nvlist_lookup_string(conf, ZPOOL_CONFIG_POOL_NAME, &pname) == 0); | |
2416 | |
6673
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6697301 deadlock between ZFS and devfs can hang system
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6643
diff
changeset
|
2417 /* |
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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6643
diff
changeset
|
2418 * 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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6643
diff
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|
2419 * 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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6643
diff
changeset
|
2420 * persistently unavailable, and generates FMA ereports as if it were a |
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
eschrock
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6643
diff
changeset
|
2421 * pool open, not import. |
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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6643
diff
changeset
|
2422 */ |
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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parents:
6643
diff
changeset
|
2423 error = spa_import_common(pname, conf, NULL, B_TRUE, B_TRUE); |
6423 | 2424 if (error == EEXIST) |
2425 error = 0; | |
2426 | |
2427 nvlist_free(conf); | |
2428 return (error); | |
2429 | |
2430 msg_out: | |
7147
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parents:
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diff
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|
2431 cmn_err(CE_NOTE, "\n" |
6423 | 2432 " *************************************************** \n" |
2433 " * This device is not bootable! * \n" | |
2434 " * It is either offlined or detached or faulted. * \n" | |
2435 " * Please try to boot from a different device. * \n" | |
7147
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diff
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|
2436 " *************************************************** "); |
6423 | 2437 |
2438 return (error); | |
2439 } | |
2440 #endif | |
2441 | |
2442 /* | |
2443 * Import a non-root pool into the system. | |
2444 */ | |
2445 int | |
2446 spa_import(const char *pool, nvlist_t *config, nvlist_t *props) | |
2447 { | |
6643
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6625086 changing cachefile doesn't remove old cache on last user
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diff
changeset
|
2448 return (spa_import_common(pool, config, props, B_FALSE, B_FALSE)); |
6423 | 2449 } |
2450 | |
6643
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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diff
changeset
|
2451 int |
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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6615
diff
changeset
|
2452 spa_import_faulted(const char *pool, nvlist_t *config, nvlist_t *props) |
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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6615
diff
changeset
|
2453 { |
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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6615
diff
changeset
|
2454 return (spa_import_common(pool, config, props, B_FALSE, B_TRUE)); |
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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parents:
6615
diff
changeset
|
2455 } |
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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6615
diff
changeset
|
2456 |
3a34b0dbb107
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diff
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|
2457 |
789 | 2458 /* |
2459 * This (illegal) pool name is used when temporarily importing a spa_t in order | |
2460 * to get the vdev stats associated with the imported devices. | |
2461 */ | |
2462 #define TRYIMPORT_NAME "$import" | |
2463 | |
2464 nvlist_t * | |
2465 spa_tryimport(nvlist_t *tryconfig) | |
2466 { | |
2467 nvlist_t *config = NULL; | |
2468 char *poolname; | |
2469 spa_t *spa; | |
2470 uint64_t state; | |
2471 | |
2472 if (nvlist_lookup_string(tryconfig, ZPOOL_CONFIG_POOL_NAME, &poolname)) | |
2473 return (NULL); | |
2474 | |
2475 if (nvlist_lookup_uint64(tryconfig, ZPOOL_CONFIG_POOL_STATE, &state)) | |
2476 return (NULL); | |
2477 | |
1635
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6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2478 /* |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2479 * Create and initialize the spa structure. |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2480 */ |
789 | 2481 mutex_enter(&spa_namespace_lock); |
1635
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6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2482 spa = spa_add(TRYIMPORT_NAME, NULL); |
789 | 2483 spa_activate(spa); |
2484 | |
2485 /* | |
1635
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6398664 zpool detach: missing argument to error message causes core dump
bonwick
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1601
diff
changeset
|
2486 * Pass off the heavy lifting to spa_load(). |
1732 | 2487 * Pass TRUE for mosconfig because the user-supplied config |
2488 * is actually the one to trust when doing an import. | |
789 | 2489 */ |
1732 | 2490 (void) spa_load(spa, tryconfig, SPA_LOAD_TRYIMPORT, B_TRUE); |
789 | 2491 |
2492 /* | |
2493 * If 'tryconfig' was at least parsable, return the current config. | |
2494 */ | |
2495 if (spa->spa_root_vdev != NULL) { | |
2496 config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); | |
2497 VERIFY(nvlist_add_string(config, ZPOOL_CONFIG_POOL_NAME, | |
2498 poolname) == 0); | |
2499 VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_POOL_STATE, | |
2500 state) == 0); | |
3975
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
2501 VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_TIMESTAMP, |
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
2502 spa->spa_uberblock.ub_timestamp) == 0); |
2082 | 2503 |
2504 /* | |
6423 | 2505 * If the bootfs property exists on this pool then we |
2506 * copy it out so that external consumers can tell which | |
2507 * pools are bootable. | |
2508 */ | |
2509 if (spa->spa_bootfs) { | |
2510 char *tmpname = kmem_alloc(MAXPATHLEN, KM_SLEEP); | |
2511 | |
2512 /* | |
2513 * We have to play games with the name since the | |
2514 * pool was opened as TRYIMPORT_NAME. | |
2515 */ | |
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2516 if (dsl_dsobj_to_dsname(spa_name(spa), |
6423 | 2517 spa->spa_bootfs, tmpname) == 0) { |
2518 char *cp; | |
2519 char *dsname = kmem_alloc(MAXPATHLEN, KM_SLEEP); | |
2520 | |
2521 cp = strchr(tmpname, '/'); | |
2522 if (cp == NULL) { | |
2523 (void) strlcpy(dsname, tmpname, | |
2524 MAXPATHLEN); | |
2525 } else { | |
2526 (void) snprintf(dsname, MAXPATHLEN, | |
2527 "%s/%s", poolname, ++cp); | |
2528 } | |
2529 VERIFY(nvlist_add_string(config, | |
2530 ZPOOL_CONFIG_BOOTFS, dsname) == 0); | |
2531 kmem_free(dsname, MAXPATHLEN); | |
2532 } | |
2533 kmem_free(tmpname, MAXPATHLEN); | |
2534 } | |
2535 | |
2536 /* | |
5450 | 2537 * Add the list of hot spares and level 2 cache devices. |
2082 | 2538 */ |
2539 spa_add_spares(spa, config); | |
5450 | 2540 spa_add_l2cache(spa, config); |
789 | 2541 } |
2542 | |
2543 spa_unload(spa); | |
2544 spa_deactivate(spa); | |
2545 spa_remove(spa); | |
2546 mutex_exit(&spa_namespace_lock); | |
2547 | |
2548 return (config); | |
2549 } | |
2550 | |
2551 /* | |
2552 * Pool export/destroy | |
2553 * | |
2554 * The act of destroying or exporting a pool is very simple. We make sure there | |
2555 * is no more pending I/O and any references to the pool are gone. Then, we | |
2556 * update the pool state and sync all the labels to disk, removing the | |
2557 * configuration from the cache afterwards. | |
2558 */ | |
2559 static int | |
7214
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2560 spa_export_common(char *pool, int new_state, nvlist_t **oldconfig, |
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2561 boolean_t force) |
789 | 2562 { |
2563 spa_t *spa; | |
2564 | |
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2565 if (oldconfig) |
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2566 *oldconfig = NULL; |
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2567 |
789 | 2568 if (!(spa_mode & FWRITE)) |
2569 return (EROFS); | |
2570 | |
2571 mutex_enter(&spa_namespace_lock); | |
2572 if ((spa = spa_lookup(pool)) == NULL) { | |
2573 mutex_exit(&spa_namespace_lock); | |
2574 return (ENOENT); | |
2575 } | |
2576 | |
2577 /* | |
1544 | 2578 * Put a hold on the pool, drop the namespace lock, stop async tasks, |
2579 * reacquire the namespace lock, and see if we can export. | |
2580 */ | |
2581 spa_open_ref(spa, FTAG); | |
2582 mutex_exit(&spa_namespace_lock); | |
2583 spa_async_suspend(spa); | |
2584 mutex_enter(&spa_namespace_lock); | |
2585 spa_close(spa, FTAG); | |
2586 | |
2587 /* | |
789 | 2588 * The pool will be in core if it's openable, |
2589 * in which case we can modify its state. | |
2590 */ | |
2591 if (spa->spa_state != POOL_STATE_UNINITIALIZED && spa->spa_sync_on) { | |
2592 /* | |
2593 * Objsets may be open only because they're dirty, so we | |
2594 * have to force it to sync before checking spa_refcnt. | |
2595 */ | |
2596 txg_wait_synced(spa->spa_dsl_pool, 0); | |
2597 | |
1544 | 2598 /* |
2599 * A pool cannot be exported or destroyed if there are active | |
2600 * references. If we are resetting a pool, allow references by | |
2601 * fault injection handlers. | |
2602 */ | |
2603 if (!spa_refcount_zero(spa) || | |
2604 (spa->spa_inject_ref != 0 && | |
2605 new_state != POOL_STATE_UNINITIALIZED)) { | |
2606 spa_async_resume(spa); | |
789 | 2607 mutex_exit(&spa_namespace_lock); |
2608 return (EBUSY); | |
2609 } | |
2610 | |
2611 /* | |
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2612 * A pool cannot be exported if it has an active shared spare. |
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2613 * This is to prevent other pools stealing the active spare |
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2614 * from an exported pool. At user's own will, such pool can |
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2615 * be forcedly exported. |
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2616 */ |
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2617 if (!force && new_state == POOL_STATE_EXPORTED && |
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2618 spa_has_active_shared_spare(spa)) { |
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2619 spa_async_resume(spa); |
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2620 mutex_exit(&spa_namespace_lock); |
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2621 return (EXDEV); |
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2622 } |
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2623 |
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2624 /* |
789 | 2625 * We want this to be reflected on every label, |
2626 * so mark them all dirty. spa_unload() will do the | |
2627 * final sync that pushes these changes out. | |
2628 */ | |
1544 | 2629 if (new_state != POOL_STATE_UNINITIALIZED) { |
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2630 spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
1544 | 2631 spa->spa_state = new_state; |
1635
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2632 spa->spa_final_txg = spa_last_synced_txg(spa) + 1; |
1544 | 2633 vdev_config_dirty(spa->spa_root_vdev); |
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2634 spa_config_exit(spa, SCL_ALL, FTAG); |
1544 | 2635 } |
789 | 2636 } |
2637 | |
4451 | 2638 spa_event_notify(spa, NULL, ESC_ZFS_POOL_DESTROY); |
2639 | |
789 | 2640 if (spa->spa_state != POOL_STATE_UNINITIALIZED) { |
2641 spa_unload(spa); | |
2642 spa_deactivate(spa); | |
2643 } | |
2644 | |
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2645 if (oldconfig && spa->spa_config) |
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2646 VERIFY(nvlist_dup(spa->spa_config, oldconfig, 0) == 0); |
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2647 |
1544 | 2648 if (new_state != POOL_STATE_UNINITIALIZED) { |
6643
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2649 spa_config_sync(spa, B_TRUE, B_TRUE); |
1544 | 2650 spa_remove(spa); |
2651 } | |
789 | 2652 mutex_exit(&spa_namespace_lock); |
2653 | |
2654 return (0); | |
2655 } | |
2656 | |
2657 /* | |
2658 * Destroy a storage pool. | |
2659 */ | |
2660 int | |
2661 spa_destroy(char *pool) | |
2662 { | |
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2663 return (spa_export_common(pool, POOL_STATE_DESTROYED, NULL, B_FALSE)); |
789 | 2664 } |
2665 | |
2666 /* | |
2667 * Export a storage pool. | |
2668 */ | |
2669 int | |
7214
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2670 spa_export(char *pool, nvlist_t **oldconfig, boolean_t force) |
789 | 2671 { |
7214
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2672 return (spa_export_common(pool, POOL_STATE_EXPORTED, oldconfig, force)); |
789 | 2673 } |
2674 | |
2675 /* | |
1544 | 2676 * Similar to spa_export(), this unloads the spa_t without actually removing it |
2677 * from the namespace in any way. | |
2678 */ | |
2679 int | |
2680 spa_reset(char *pool) | |
2681 { | |
7214
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2682 return (spa_export_common(pool, POOL_STATE_UNINITIALIZED, NULL, |
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2683 B_FALSE)); |
1544 | 2684 } |
2685 | |
2686 /* | |
789 | 2687 * ========================================================================== |
2688 * Device manipulation | |
2689 * ========================================================================== | |
2690 */ | |
2691 | |
2692 /* | |
4527 | 2693 * Add a device to a storage pool. |
789 | 2694 */ |
2695 int | |
2696 spa_vdev_add(spa_t *spa, nvlist_t *nvroot) | |
2697 { | |
2698 uint64_t txg; | |
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2699 int c, error; |
789 | 2700 vdev_t *rvd = spa->spa_root_vdev; |
1585
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2701 vdev_t *vd, *tvd; |
5450 | 2702 nvlist_t **spares, **l2cache; |
2703 uint_t nspares, nl2cache; | |
789 | 2704 |
2705 txg = spa_vdev_enter(spa); | |
2706 | |
2082 | 2707 if ((error = spa_config_parse(spa, &vd, nvroot, NULL, 0, |
2708 VDEV_ALLOC_ADD)) != 0) | |
2709 return (spa_vdev_exit(spa, NULL, txg, error)); | |
2710 | |
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2711 spa->spa_pending_vdev = vd; /* spa_vdev_exit() will clear this */ |
789 | 2712 |
5450 | 2713 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, &spares, |
2714 &nspares) != 0) | |
2082 | 2715 nspares = 0; |
2716 | |
5450 | 2717 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, &l2cache, |
2718 &nl2cache) != 0) | |
2719 nl2cache = 0; | |
2720 | |
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2721 if (vd->vdev_children == 0 && nspares == 0 && nl2cache == 0) |
2082 | 2722 return (spa_vdev_exit(spa, vd, txg, EINVAL)); |
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2723 |
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2724 if (vd->vdev_children != 0 && |
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2725 (error = vdev_create(vd, txg, B_FALSE)) != 0) |
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2726 return (spa_vdev_exit(spa, vd, txg, error)); |
2082 | 2727 |
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2728 /* |
5450 | 2729 * We must validate the spares and l2cache devices after checking the |
2730 * children. Otherwise, vdev_inuse() will blindly overwrite the spare. | |
3377
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2731 */ |
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2732 if ((error = spa_validate_aux(spa, nvroot, txg, VDEV_ALLOC_ADD)) != 0) |
3377
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2733 return (spa_vdev_exit(spa, vd, txg, error)); |
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2734 |
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2735 /* |
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2736 * Transfer each new top-level vdev from vd to rvd. |
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2737 */ |
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2738 for (c = 0; c < vd->vdev_children; c++) { |
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2739 tvd = vd->vdev_child[c]; |
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2740 vdev_remove_child(vd, tvd); |
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2741 tvd->vdev_id = rvd->vdev_children; |
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2742 vdev_add_child(rvd, tvd); |
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2743 vdev_config_dirty(tvd); |
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2744 } |
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2745 |
2082 | 2746 if (nspares != 0) { |
5450 | 2747 spa_set_aux_vdevs(&spa->spa_spares, spares, nspares, |
2748 ZPOOL_CONFIG_SPARES); | |
2082 | 2749 spa_load_spares(spa); |
5450 | 2750 spa->spa_spares.sav_sync = B_TRUE; |
2751 } | |
2752 | |
2753 if (nl2cache != 0) { | |
2754 spa_set_aux_vdevs(&spa->spa_l2cache, l2cache, nl2cache, | |
2755 ZPOOL_CONFIG_L2CACHE); | |
2756 spa_load_l2cache(spa); | |
2757 spa->spa_l2cache.sav_sync = B_TRUE; | |
789 | 2758 } |
2759 | |
2760 /* | |
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2761 * We have to be careful when adding new vdevs to an existing pool. |
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2762 * If other threads start allocating from these vdevs before we |
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2763 * sync the config cache, and we lose power, then upon reboot we may |
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2764 * fail to open the pool because there are DVAs that the config cache |
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2765 * can't translate. Therefore, we first add the vdevs without |
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2766 * initializing metaslabs; sync the config cache (via spa_vdev_exit()); |
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2767 * and then let spa_config_update() initialize the new metaslabs. |
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2768 * |
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2769 * spa_load() checks for added-but-not-initialized vdevs, so that |
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2770 * if we lose power at any point in this sequence, the remaining |
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2771 * steps will be completed the next time we load the pool. |
789 | 2772 */ |
1635
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2773 (void) spa_vdev_exit(spa, vd, txg, 0); |
1585
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2774 |
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2775 mutex_enter(&spa_namespace_lock); |
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2776 spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); |
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2777 mutex_exit(&spa_namespace_lock); |
789 | 2778 |
1635
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2779 return (0); |
789 | 2780 } |
2781 | |
2782 /* | |
2783 * Attach a device to a mirror. The arguments are the path to any device | |
2784 * in the mirror, and the nvroot for the new device. If the path specifies | |
2785 * a device that is not mirrored, we automatically insert the mirror vdev. | |
2786 * | |
2787 * If 'replacing' is specified, the new device is intended to replace the | |
2788 * existing device; in this case the two devices are made into their own | |
4451 | 2789 * mirror using the 'replacing' vdev, which is functionally identical to |
789 | 2790 * the mirror vdev (it actually reuses all the same ops) but has a few |
2791 * extra rules: you can't attach to it after it's been created, and upon | |
2792 * completion of resilvering, the first disk (the one being replaced) | |
2793 * is automatically detached. | |
2794 */ | |
2795 int | |
1544 | 2796 spa_vdev_attach(spa_t *spa, uint64_t guid, nvlist_t *nvroot, int replacing) |
789 | 2797 { |
2798 uint64_t txg, open_txg; | |
2799 vdev_t *rvd = spa->spa_root_vdev; | |
2800 vdev_t *oldvd, *newvd, *newrootvd, *pvd, *tvd; | |
2082 | 2801 vdev_ops_t *pvops; |
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2802 dmu_tx_t *tx; |
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2803 char *oldvdpath, *newvdpath; |
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|
2804 int newvd_isspare; |
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|
2805 int error; |
789 | 2806 |
2807 txg = spa_vdev_enter(spa); | |
2808 | |
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2809 oldvd = spa_lookup_by_guid(spa, guid, B_FALSE); |
789 | 2810 |
2811 if (oldvd == NULL) | |
2812 return (spa_vdev_exit(spa, NULL, txg, ENODEV)); | |
2813 | |
1585
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diff
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|
2814 if (!oldvd->vdev_ops->vdev_op_leaf) |
4ad213e858a9
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diff
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|
2815 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
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2816 |
789 | 2817 pvd = oldvd->vdev_parent; |
2818 | |
2082 | 2819 if ((error = spa_config_parse(spa, &newrootvd, nvroot, NULL, 0, |
4451 | 2820 VDEV_ALLOC_ADD)) != 0) |
2821 return (spa_vdev_exit(spa, NULL, txg, EINVAL)); | |
2822 | |
2823 if (newrootvd->vdev_children != 1) | |
789 | 2824 return (spa_vdev_exit(spa, newrootvd, txg, EINVAL)); |
2825 | |
2826 newvd = newrootvd->vdev_child[0]; | |
2827 | |
2828 if (!newvd->vdev_ops->vdev_op_leaf) | |
2829 return (spa_vdev_exit(spa, newrootvd, txg, EINVAL)); | |
2830 | |
2082 | 2831 if ((error = vdev_create(newrootvd, txg, replacing)) != 0) |
789 | 2832 return (spa_vdev_exit(spa, newrootvd, txg, error)); |
2833 | |
4527 | 2834 /* |
2835 * Spares can't replace logs | |
2836 */ | |
7326
a3c803100a09
6713886 hot spares of mirrored log devices should not be allowed
Eric Schrock <Eric.Schrock@Sun.COM>
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diff
changeset
|
2837 if (oldvd->vdev_top->vdev_islog && newvd->vdev_isspare) |
4527 | 2838 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
2839 | |
2082 | 2840 if (!replacing) { |
2841 /* | |
2842 * For attach, the only allowable parent is a mirror or the root | |
2843 * vdev. | |
2844 */ | |
2845 if (pvd->vdev_ops != &vdev_mirror_ops && | |
2846 pvd->vdev_ops != &vdev_root_ops) | |
2847 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
2848 | |
2849 pvops = &vdev_mirror_ops; | |
2850 } else { | |
2851 /* | |
2852 * Active hot spares can only be replaced by inactive hot | |
2853 * spares. | |
2854 */ | |
2855 if (pvd->vdev_ops == &vdev_spare_ops && | |
2856 pvd->vdev_child[1] == oldvd && | |
2857 !spa_has_spare(spa, newvd->vdev_guid)) | |
2858 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
2859 | |
2860 /* | |
2861 * If the source is a hot spare, and the parent isn't already a | |
2862 * spare, then we want to create a new hot spare. Otherwise, we | |
3377
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6393525 vdev_reopen() should verify that it's still the same device
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|
2863 * 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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|
2864 * attach to a spared vdev child unless the 'isspare' state is |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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2865 * 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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|
2866 * non-spare). |
2082 | 2867 */ |
2868 if (pvd->vdev_ops == &vdev_replacing_ops) | |
2869 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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|
2870 else if (pvd->vdev_ops == &vdev_spare_ops && |
a2fa338530c1
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2871 newvd->vdev_isspare != oldvd->vdev_isspare) |
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2872 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
2082 | 2873 else if (pvd->vdev_ops != &vdev_spare_ops && |
2874 newvd->vdev_isspare) | |
2875 pvops = &vdev_spare_ops; | |
2876 else | |
2877 pvops = &vdev_replacing_ops; | |
2878 } | |
2879 | |
1175
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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797
diff
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|
2880 /* |
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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diff
changeset
|
2881 * 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:
797
diff
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|
2882 * 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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diff
changeset
|
2883 */ |
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
|
2884 if (newvd->vdev_psize < vdev_get_rsize(oldvd)) |
789 | 2885 return (spa_vdev_exit(spa, newrootvd, txg, EOVERFLOW)); |
2886 | |
1732 | 2887 /* |
2888 * The new device cannot have a higher alignment requirement | |
2889 * than the top-level vdev. | |
2890 */ | |
2891 if (newvd->vdev_ashift > oldvd->vdev_top->vdev_ashift) | |
789 | 2892 return (spa_vdev_exit(spa, newrootvd, txg, EDOM)); |
2893 | |
2894 /* | |
2895 * If this is an in-place replacement, update oldvd's path and devid | |
2896 * to make it distinguishable from newvd, and unopenable from now on. | |
2897 */ | |
2898 if (strcmp(oldvd->vdev_path, newvd->vdev_path) == 0) { | |
2899 spa_strfree(oldvd->vdev_path); | |
2900 oldvd->vdev_path = kmem_alloc(strlen(newvd->vdev_path) + 5, | |
2901 KM_SLEEP); | |
2902 (void) sprintf(oldvd->vdev_path, "%s/%s", | |
2903 newvd->vdev_path, "old"); | |
2904 if (oldvd->vdev_devid != NULL) { | |
2905 spa_strfree(oldvd->vdev_devid); | |
2906 oldvd->vdev_devid = NULL; | |
2907 } | |
2908 } | |
2909 | |
2910 /* | |
2082 | 2911 * If the parent is not a mirror, or if we're replacing, insert the new |
2912 * mirror/replacing/spare vdev above oldvd. | |
789 | 2913 */ |
2914 if (pvd->vdev_ops != pvops) | |
2915 pvd = vdev_add_parent(oldvd, pvops); | |
2916 | |
2917 ASSERT(pvd->vdev_top->vdev_parent == rvd); | |
2918 ASSERT(pvd->vdev_ops == pvops); | |
2919 ASSERT(oldvd->vdev_parent == pvd); | |
2920 | |
2921 /* | |
2922 * Extract the new device from its root and add it to pvd. | |
2923 */ | |
2924 vdev_remove_child(newrootvd, newvd); | |
2925 newvd->vdev_id = pvd->vdev_children; | |
2926 vdev_add_child(pvd, newvd); | |
2927 | |
1544 | 2928 /* |
2929 * If newvd is smaller than oldvd, but larger than its rsize, | |
2930 * the addition of newvd may have decreased our parent's asize. | |
2931 */ | |
2932 pvd->vdev_asize = MIN(pvd->vdev_asize, newvd->vdev_asize); | |
2933 | |
789 | 2934 tvd = newvd->vdev_top; |
2935 ASSERT(pvd->vdev_top == tvd); | |
2936 ASSERT(tvd->vdev_parent == rvd); | |
2937 | |
2938 vdev_config_dirty(tvd); | |
2939 | |
2940 /* | |
2941 * Set newvd's DTL to [TXG_INITIAL, open_txg]. It will propagate | |
2942 * upward when spa_vdev_exit() calls vdev_dtl_reassess(). | |
2943 */ | |
2944 open_txg = txg + TXG_CONCURRENT_STATES - 1; | |
2945 | |
2946 mutex_enter(&newvd->vdev_dtl_lock); | |
2947 space_map_add(&newvd->vdev_dtl_map, TXG_INITIAL, | |
2948 open_txg - TXG_INITIAL + 1); | |
2949 mutex_exit(&newvd->vdev_dtl_lock); | |
2950 | |
3377
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6393525 vdev_reopen() should verify that it's still the same device
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2951 if (newvd->vdev_isspare) |
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|
2952 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>
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7706
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changeset
|
2953 oldvdpath = spa_strdup(oldvd->vdev_path); |
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
|
2954 newvdpath = spa_strdup(newvd->vdev_path); |
7313
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|
2955 newvd_isspare = newvd->vdev_isspare; |
1544 | 2956 |
789 | 2957 /* |
2958 * Mark newvd's DTL dirty in this txg. | |
2959 */ | |
1732 | 2960 vdev_dirty(tvd, VDD_DTL, newvd, txg); |
789 | 2961 |
2962 (void) spa_vdev_exit(spa, newrootvd, open_txg, 0); | |
2963 | |
7313
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|
2964 tx = dmu_tx_create_dd(spa_get_dsl(spa)->dp_mos_dir); |
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6734585 zpool history should log when a spare device becomes active
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|
2965 if (dmu_tx_assign(tx, TXG_WAIT) == 0) { |
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|
2966 spa_history_internal_log(LOG_POOL_VDEV_ATTACH, spa, tx, |
99e2110471bb
6734585 zpool history should log when a spare device becomes active
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|
2967 CRED(), "%s vdev=%s %s vdev=%s", |
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6734585 zpool history should log when a spare device becomes active
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|
2968 replacing && newvd_isspare ? "spare in" : |
99e2110471bb
6734585 zpool history should log when a spare device becomes active
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|
2969 replacing ? "replace" : "attach", newvdpath, |
99e2110471bb
6734585 zpool history should log when a spare device becomes active
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|
2970 replacing ? "for" : "to", oldvdpath); |
99e2110471bb
6734585 zpool history should log when a spare device becomes active
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|
2971 dmu_tx_commit(tx); |
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6734585 zpool history should log when a spare device becomes active
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2972 } else { |
99e2110471bb
6734585 zpool history should log when a spare device becomes active
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|
2973 dmu_tx_abort(tx); |
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|
2974 } |
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2975 |
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2976 spa_strfree(oldvdpath); |
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2977 spa_strfree(newvdpath); |
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2978 |
789 | 2979 /* |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
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diff
changeset
|
2980 * Kick off a resilver to update newvd. |
789 | 2981 */ |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
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diff
changeset
|
2982 VERIFY3U(spa_scrub(spa, POOL_SCRUB_RESILVER), ==, 0); |
789 | 2983 |
2984 return (0); | |
2985 } | |
2986 | |
2987 /* | |
2988 * Detach a device from a mirror or replacing vdev. | |
2989 * If 'replace_done' is specified, only detach if the parent | |
2990 * is a replacing vdev. | |
2991 */ | |
2992 int | |
1544 | 2993 spa_vdev_detach(spa_t *spa, uint64_t guid, int replace_done) |
789 | 2994 { |
2995 uint64_t txg; | |
2996 int c, t, error; | |
2997 vdev_t *rvd = spa->spa_root_vdev; | |
2998 vdev_t *vd, *pvd, *cvd, *tvd; | |
2082 | 2999 boolean_t unspare = B_FALSE; |
3000 uint64_t unspare_guid; | |
6673
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3001 size_t len; |
789 | 3002 |
3003 txg = spa_vdev_enter(spa); | |
3004 | |
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6625086 changing cachefile doesn't remove old cache on last user
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3005 vd = spa_lookup_by_guid(spa, guid, B_FALSE); |
789 | 3006 |
3007 if (vd == NULL) | |
3008 return (spa_vdev_exit(spa, NULL, txg, ENODEV)); | |
3009 | |
1585
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3010 if (!vd->vdev_ops->vdev_op_leaf) |
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|
3011 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
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3012 |
789 | 3013 pvd = vd->vdev_parent; |
3014 | |
3015 /* | |
3016 * If replace_done is specified, only remove this device if it's | |
2082 | 3017 * the first child of a replacing vdev. For the 'spare' vdev, either |
3018 * disk can be removed. | |
789 | 3019 */ |
2082 | 3020 if (replace_done) { |
3021 if (pvd->vdev_ops == &vdev_replacing_ops) { | |
3022 if (vd->vdev_id != 0) | |
3023 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
3024 } else if (pvd->vdev_ops != &vdev_spare_ops) { | |
3025 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
3026 } | |
3027 } | |
3028 | |
3029 ASSERT(pvd->vdev_ops != &vdev_spare_ops || | |
4577 | 3030 spa_version(spa) >= SPA_VERSION_SPARES); |
789 | 3031 |
3032 /* | |
2082 | 3033 * Only mirror, replacing, and spare vdevs support detach. |
789 | 3034 */ |
3035 if (pvd->vdev_ops != &vdev_replacing_ops && | |
2082 | 3036 pvd->vdev_ops != &vdev_mirror_ops && |
3037 pvd->vdev_ops != &vdev_spare_ops) | |
789 | 3038 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
3039 | |
3040 /* | |
3041 * If there's only one replica, you can't detach it. | |
3042 */ | |
3043 if (pvd->vdev_children <= 1) | |
3044 return (spa_vdev_exit(spa, NULL, txg, EBUSY)); | |
3045 | |
3046 /* | |
3047 * If all siblings have non-empty DTLs, this device may have the only | |
3048 * valid copy of the data, which means we cannot safely detach it. | |
3049 * | |
3050 * XXX -- as in the vdev_offline() case, we really want a more | |
3051 * precise DTL check. | |
3052 */ | |
3053 for (c = 0; c < pvd->vdev_children; c++) { | |
3054 uint64_t dirty; | |
3055 | |
3056 cvd = pvd->vdev_child[c]; | |
3057 if (cvd == vd) | |
3058 continue; | |
3059 if (vdev_is_dead(cvd)) | |
3060 continue; | |
3061 mutex_enter(&cvd->vdev_dtl_lock); | |
3062 dirty = cvd->vdev_dtl_map.sm_space | | |
3063 cvd->vdev_dtl_scrub.sm_space; | |
3064 mutex_exit(&cvd->vdev_dtl_lock); | |
3065 if (!dirty) | |
3066 break; | |
3067 } | |
2082 | 3068 |
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diff
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|
3069 if (c == pvd->vdev_children) |
789 | 3070 return (spa_vdev_exit(spa, NULL, txg, EBUSY)); |
3071 | |
3072 /* | |
6673
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|
3073 * If we are detaching the second disk from a replacing vdev, then |
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|
3074 * check to see if we changed the original vdev's path to have "/old" |
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3075 * at the end in spa_vdev_attach(). If so, undo that change now. |
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|
3076 */ |
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|
3077 if (pvd->vdev_ops == &vdev_replacing_ops && vd->vdev_id == 1 && |
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changeset
|
3078 pvd->vdev_child[0]->vdev_path != NULL && |
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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diff
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|
3079 pvd->vdev_child[1]->vdev_path != NULL) { |
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6697301 deadlock between ZFS and devfs can hang system
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diff
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|
3080 ASSERT(pvd->vdev_child[1] == vd); |
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6697301 deadlock between ZFS and devfs can hang system
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|
3081 cvd = pvd->vdev_child[0]; |
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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diff
changeset
|
3082 len = strlen(vd->vdev_path); |
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6697301 deadlock between ZFS and devfs can hang system
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diff
changeset
|
3083 if (strncmp(cvd->vdev_path, vd->vdev_path, len) == 0 && |
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
eschrock
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diff
changeset
|
3084 strcmp(cvd->vdev_path + len, "/old") == 0) { |
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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diff
changeset
|
3085 spa_strfree(cvd->vdev_path); |
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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diff
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|
3086 cvd->vdev_path = spa_strdup(vd->vdev_path); |
be079d6124af
6697301 deadlock between ZFS and devfs can hang system
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diff
changeset
|
3087 } |
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6697301 deadlock between ZFS and devfs can hang system
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diff
changeset
|
3088 } |
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6697301 deadlock between ZFS and devfs can hang system
eschrock
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diff
changeset
|
3089 |
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6697301 deadlock between ZFS and devfs can hang system
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|
3090 /* |
2082 | 3091 * If we are detaching the original disk from a spare, then it implies |
3092 * that the spare should become a real disk, and be removed from the | |
3093 * active spare list for the pool. | |
3094 */ | |
3095 if (pvd->vdev_ops == &vdev_spare_ops && | |
3096 vd->vdev_id == 0) | |
3097 unspare = B_TRUE; | |
3098 | |
3099 /* | |
789 | 3100 * Erase the disk labels so the disk can be used for other things. |
3101 * This must be done after all other error cases are handled, | |
3102 * but before we disembowel vd (so we can still do I/O to it). | |
3103 * But if we can't do it, don't treat the error as fatal -- | |
3104 * it may be that the unwritability of the disk is the reason | |
3105 * it's being detached! | |
3106 */ | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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3290
diff
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|
3107 error = vdev_label_init(vd, 0, VDEV_LABEL_REMOVE); |
789 | 3108 |
3109 /* | |
3110 * Remove vd from its parent and compact the parent's children. | |
3111 */ | |
3112 vdev_remove_child(pvd, vd); | |
3113 vdev_compact_children(pvd); | |
3114 | |
3115 /* | |
3116 * Remember one of the remaining children so we can get tvd below. | |
3117 */ | |
3118 cvd = pvd->vdev_child[0]; | |
3119 | |
3120 /* | |
2082 | 3121 * If we need to remove the remaining child from the list of hot spares, |
3122 * do it now, marking the vdev as no longer a spare in the process. We | |
3123 * must do this before vdev_remove_parent(), because that can change the | |
3124 * GUID if it creates a new toplevel GUID. | |
3125 */ | |
3126 if (unspare) { | |
3127 ASSERT(cvd->vdev_isspare); | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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diff
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|
3128 spa_spare_remove(cvd); |
2082 | 3129 unspare_guid = cvd->vdev_guid; |
3130 } | |
3131 | |
3132 /* | |
789 | 3133 * If the parent mirror/replacing vdev only has one child, |
3134 * the parent is no longer needed. Remove it from the tree. | |
3135 */ | |
3136 if (pvd->vdev_children == 1) | |
3137 vdev_remove_parent(cvd); | |
3138 | |
3139 /* | |
3140 * We don't set tvd until now because the parent we just removed | |
3141 * may have been the previous top-level vdev. | |
3142 */ | |
3143 tvd = cvd->vdev_top; | |
3144 ASSERT(tvd->vdev_parent == rvd); | |
3145 | |
3146 /* | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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diff
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|
3147 * Reevaluate the parent vdev state. |
789 | 3148 */ |
4451 | 3149 vdev_propagate_state(cvd); |
789 | 3150 |
3151 /* | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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diff
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|
3152 * 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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diff
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|
3153 * 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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|
3154 * can't fail because the existing metaslabs are already in core, so |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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|
3155 * there's nothing to read from disk. |
789 | 3156 */ |
1732 | 3157 VERIFY(vdev_metaslab_init(tvd, txg) == 0); |
789 | 3158 |
3159 vdev_config_dirty(tvd); | |
3160 | |
3161 /* | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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diff
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|
3162 * 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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|
3163 * 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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diff
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|
3164 * But first make sure we're not on any *other* txg's DTL list, to |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
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diff
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|
3165 * prevent vd from being accessed after it's freed. |
789 | 3166 */ |
3167 for (t = 0; t < TXG_SIZE; t++) | |
3168 (void) txg_list_remove_this(&tvd->vdev_dtl_list, vd, t); | |
1732 | 3169 vd->vdev_detached = B_TRUE; |
3170 vdev_dirty(tvd, VDD_DTL, vd, txg); | |
789 | 3171 |
4451 | 3172 spa_event_notify(spa, vd, ESC_ZFS_VDEV_REMOVE); |
3173 | |
2082 | 3174 error = spa_vdev_exit(spa, vd, txg, 0); |
3175 | |
3176 /* | |
3377
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diff
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|
3177 * If this was the removal of the original device in a hot spare vdev, |
a2fa338530c1
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|
3178 * then we want to go through and remove the device from the hot spare |
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diff
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|
3179 * list of every other pool. |
2082 | 3180 */ |
3181 if (unspare) { | |
3182 spa = NULL; | |
3183 mutex_enter(&spa_namespace_lock); | |
3184 while ((spa = spa_next(spa)) != NULL) { | |
3185 if (spa->spa_state != POOL_STATE_ACTIVE) | |
3186 continue; | |
7793
4dbbc0a3f135
6755897 recursive mutex enter in spa_vdev_enter when running test suite
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|
3187 spa_open_ref(spa, FTAG); |
4dbbc0a3f135
6755897 recursive mutex enter in spa_vdev_enter when running test suite
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|
3188 mutex_exit(&spa_namespace_lock); |
2082 | 3189 (void) spa_vdev_remove(spa, unspare_guid, B_TRUE); |
7793
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6755897 recursive mutex enter in spa_vdev_enter when running test suite
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|
3190 mutex_enter(&spa_namespace_lock); |
4dbbc0a3f135
6755897 recursive mutex enter in spa_vdev_enter when running test suite
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|
3191 spa_close(spa, FTAG); |
2082 | 3192 } |
3193 mutex_exit(&spa_namespace_lock); | |
3194 } | |
3195 | |
3196 return (error); | |
3197 } | |
3198 | |
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|
3199 static nvlist_t * |
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|
3200 spa_nvlist_lookup_by_guid(nvlist_t **nvpp, int count, uint64_t target_guid) |
2082 | 3201 { |
7754
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|
3202 for (int i = 0; i < count; i++) { |
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3203 uint64_t guid; |
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3204 |
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3205 VERIFY(nvlist_lookup_uint64(nvpp[i], ZPOOL_CONFIG_GUID, |
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|
3206 &guid) == 0); |
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3207 |
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3208 if (guid == target_guid) |
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|
3209 return (nvpp[i]); |
2082 | 3210 } |
3211 | |
7754
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|
3212 return (NULL); |
5450 | 3213 } |
3214 | |
7754
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diff
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|
3215 static void |
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|
3216 spa_vdev_remove_aux(nvlist_t *config, char *name, nvlist_t **dev, int count, |
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|
3217 nvlist_t *dev_to_remove) |
5450 | 3218 { |
7754
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6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
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|
3219 nvlist_t **newdev = NULL; |
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6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
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3220 |
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3221 if (count > 1) |
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|
3222 newdev = kmem_alloc((count - 1) * sizeof (void *), KM_SLEEP); |
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3223 |
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|
3224 for (int i = 0, j = 0; i < count; i++) { |
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|
3225 if (dev[i] == dev_to_remove) |
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|
3226 continue; |
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diff
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|
3227 VERIFY(nvlist_dup(dev[i], &newdev[j++], KM_SLEEP) == 0); |
5450 | 3228 } |
3229 | |
7754
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3230 VERIFY(nvlist_remove(config, name, DATA_TYPE_NVLIST_ARRAY) == 0); |
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|
3231 VERIFY(nvlist_add_nvlist_array(config, name, newdev, count - 1) == 0); |
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3232 |
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3233 for (int i = 0; i < count - 1; i++) |
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3234 nvlist_free(newdev[i]); |
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3235 |
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3236 if (count > 1) |
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3237 kmem_free(newdev, (count - 1) * sizeof (void *)); |
5450 | 3238 } |
3239 | |
3240 /* | |
3241 * Remove a device from the pool. Currently, this supports removing only hot | |
3242 * spares and level 2 ARC devices. | |
3243 */ | |
3244 int | |
3245 spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare) | |
3246 { | |
3247 vdev_t *vd; | |
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3248 nvlist_t **spares, **l2cache, *nv; |
5450 | 3249 uint_t nspares, nl2cache; |
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3250 uint64_t txg; |
5450 | 3251 int error = 0; |
3252 | |
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3253 txg = spa_vdev_enter(spa); |
5450 | 3254 |
6643
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3255 vd = spa_lookup_by_guid(spa, guid, B_FALSE); |
5450 | 3256 |
3257 if (spa->spa_spares.sav_vdevs != NULL && | |
3258 nvlist_lookup_nvlist_array(spa->spa_spares.sav_config, | |
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3259 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0 && |
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3260 (nv = spa_nvlist_lookup_by_guid(spares, nspares, guid)) != NULL) { |
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3261 /* |
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3262 * Only remove the hot spare if it's not currently in use |
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3263 * in this pool. |
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3264 */ |
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3265 if (vd == NULL || unspare) { |
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3266 spa_vdev_remove_aux(spa->spa_spares.sav_config, |
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3267 ZPOOL_CONFIG_SPARES, spares, nspares, nv); |
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3268 spa_load_spares(spa); |
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3269 spa->spa_spares.sav_sync = B_TRUE; |
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3270 } else { |
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3271 error = EBUSY; |
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3272 } |
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3273 } else if (spa->spa_l2cache.sav_vdevs != NULL && |
5450 | 3274 nvlist_lookup_nvlist_array(spa->spa_l2cache.sav_config, |
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3275 ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0 && |
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3276 (nv = spa_nvlist_lookup_by_guid(l2cache, nl2cache, guid)) != NULL) { |
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3277 /* |
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|
3278 * Cache devices can always be removed. |
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|
3279 */ |
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|
3280 spa_vdev_remove_aux(spa->spa_l2cache.sav_config, |
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changeset
|
3281 ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache, nv); |
5450 | 3282 spa_load_l2cache(spa); |
3283 spa->spa_l2cache.sav_sync = B_TRUE; | |
7754
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diff
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|
3284 } else if (vd != NULL) { |
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|
3285 /* |
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diff
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|
3286 * Normal vdevs cannot be removed (yet). |
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diff
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|
3287 */ |
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diff
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|
3288 error = ENOTSUP; |
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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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|
3289 } else { |
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diff
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|
3290 /* |
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|
3291 * There is no vdev of any kind with the specified guid. |
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|
3292 */ |
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diff
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|
3293 error = ENOENT; |
5450 | 3294 } |
2082 | 3295 |
7754
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6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling
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|
3296 return (spa_vdev_exit(spa, NULL, txg, error)); |
789 | 3297 } |
3298 | |
3299 /* | |
4451 | 3300 * Find any device that's done replacing, or a vdev marked 'unspare' that's |
3301 * current spared, so we can detach it. | |
789 | 3302 */ |
1544 | 3303 static vdev_t * |
4451 | 3304 spa_vdev_resilver_done_hunt(vdev_t *vd) |
789 | 3305 { |
1544 | 3306 vdev_t *newvd, *oldvd; |
789 | 3307 int c; |
3308 | |
1544 | 3309 for (c = 0; c < vd->vdev_children; c++) { |
4451 | 3310 oldvd = spa_vdev_resilver_done_hunt(vd->vdev_child[c]); |
1544 | 3311 if (oldvd != NULL) |
3312 return (oldvd); | |
3313 } | |
789 | 3314 |
4451 | 3315 /* |
3316 * Check for a completed replacement. | |
3317 */ | |
789 | 3318 if (vd->vdev_ops == &vdev_replacing_ops && vd->vdev_children == 2) { |
1544 | 3319 oldvd = vd->vdev_child[0]; |
3320 newvd = vd->vdev_child[1]; | |
789 | 3321 |
1544 | 3322 mutex_enter(&newvd->vdev_dtl_lock); |
3323 if (newvd->vdev_dtl_map.sm_space == 0 && | |
3324 newvd->vdev_dtl_scrub.sm_space == 0) { | |
3325 mutex_exit(&newvd->vdev_dtl_lock); | |
3326 return (oldvd); | |
3327 } | |
3328 mutex_exit(&newvd->vdev_dtl_lock); | |
3329 } | |
789 | 3330 |
4451 | 3331 /* |
3332 * Check for a completed resilver with the 'unspare' flag set. | |
3333 */ | |
3334 if (vd->vdev_ops == &vdev_spare_ops && vd->vdev_children == 2) { | |
3335 newvd = vd->vdev_child[0]; | |
3336 oldvd = vd->vdev_child[1]; | |
3337 | |
3338 mutex_enter(&newvd->vdev_dtl_lock); | |
3339 if (newvd->vdev_unspare && | |
3340 newvd->vdev_dtl_map.sm_space == 0 && | |
3341 newvd->vdev_dtl_scrub.sm_space == 0) { | |
3342 newvd->vdev_unspare = 0; | |
3343 mutex_exit(&newvd->vdev_dtl_lock); | |
3344 return (oldvd); | |
3345 } | |
3346 mutex_exit(&newvd->vdev_dtl_lock); | |
3347 } | |
3348 | |
1544 | 3349 return (NULL); |
789 | 3350 } |
3351 | |
1544 | 3352 static void |
4451 | 3353 spa_vdev_resilver_done(spa_t *spa) |
789 | 3354 { |
1544 | 3355 vdev_t *vd; |
2082 | 3356 vdev_t *pvd; |
1544 | 3357 uint64_t guid; |
2082 | 3358 uint64_t pguid = 0; |
789 | 3359 |
7754
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changeset
|
3360 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); |
789 | 3361 |
4451 | 3362 while ((vd = spa_vdev_resilver_done_hunt(spa->spa_root_vdev)) != NULL) { |
1544 | 3363 guid = vd->vdev_guid; |
2082 | 3364 /* |
3365 * If we have just finished replacing a hot spared device, then | |
3366 * we need to detach the parent's first child (the original hot | |
3367 * spare) as well. | |
3368 */ | |
3369 pvd = vd->vdev_parent; | |
3370 if (pvd->vdev_parent->vdev_ops == &vdev_spare_ops && | |
3371 pvd->vdev_id == 0) { | |
3372 ASSERT(pvd->vdev_ops == &vdev_replacing_ops); | |
3373 ASSERT(pvd->vdev_parent->vdev_children == 2); | |
3374 pguid = pvd->vdev_parent->vdev_child[1]->vdev_guid; | |
3375 } | |
7754
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diff
changeset
|
3376 spa_config_exit(spa, SCL_CONFIG, FTAG); |
1544 | 3377 if (spa_vdev_detach(spa, guid, B_TRUE) != 0) |
3378 return; | |
2082 | 3379 if (pguid != 0 && spa_vdev_detach(spa, pguid, B_TRUE) != 0) |
3380 return; | |
7754
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changeset
|
3381 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); |
789 | 3382 } |
3383 | |
7754
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diff
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|
3384 spa_config_exit(spa, SCL_CONFIG, FTAG); |
789 | 3385 } |
3386 | |
3387 /* | |
1354
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diff
changeset
|
3388 * Update the stored path for this vdev. Dirty the vdev configuration, relying |
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diff
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|
3389 * on spa_vdev_enter/exit() to synchronize the labels and cache. |
81359ee1ee63
6362672 import gets confused about overlapping slices
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|
3390 */ |
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diff
changeset
|
3391 int |
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diff
changeset
|
3392 spa_vdev_setpath(spa_t *spa, uint64_t guid, const char *newpath) |
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diff
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|
3393 { |
6643
3a34b0dbb107
6625086 changing cachefile doesn't remove old cache on last user
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diff
changeset
|
3394 vdev_t *vd; |
1354
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|
3395 uint64_t txg; |
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diff
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|
3396 |
81359ee1ee63
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|
3397 txg = spa_vdev_enter(spa); |
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diff
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|
3398 |
6643
3a34b0dbb107
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diff
changeset
|
3399 if ((vd = spa_lookup_by_guid(spa, guid, B_TRUE)) == NULL) { |
2082 | 3400 /* |
6643
3a34b0dbb107
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diff
changeset
|
3401 * Determine if this is a reference to a hot spare device. If |
3a34b0dbb107
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diff
changeset
|
3402 * it is, update the path manually as there is no associated |
3a34b0dbb107
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diff
changeset
|
3403 * vdev_t that can be synced to disk. |
2082 | 3404 */ |
6643
3a34b0dbb107
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6615
diff
changeset
|
3405 nvlist_t **spares; |
3a34b0dbb107
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diff
changeset
|
3406 uint_t i, nspares; |
5450 | 3407 |
3408 if (spa->spa_spares.sav_config != NULL) { | |
3409 VERIFY(nvlist_lookup_nvlist_array( | |
3410 spa->spa_spares.sav_config, ZPOOL_CONFIG_SPARES, | |
3411 &spares, &nspares) == 0); | |
2082 | 3412 for (i = 0; i < nspares; i++) { |
3413 uint64_t theguid; | |
3414 VERIFY(nvlist_lookup_uint64(spares[i], | |
3415 ZPOOL_CONFIG_GUID, &theguid) == 0); | |
5450 | 3416 if (theguid == guid) { |
3417 VERIFY(nvlist_add_string(spares[i], | |
3418 ZPOOL_CONFIG_PATH, newpath) == 0); | |
3419 spa_load_spares(spa); | |
3420 spa->spa_spares.sav_sync = B_TRUE; | |
3421 return (spa_vdev_exit(spa, NULL, txg, | |
3422 0)); | |
3423 } | |
2082 | 3424 } |
3425 } | |
5450 | 3426 |
3427 return (spa_vdev_exit(spa, NULL, txg, ENOENT)); | |
2082 | 3428 } |
1354
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diff
changeset
|
3429 |
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
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parents:
1544
diff
changeset
|
3430 if (!vd->vdev_ops->vdev_op_leaf) |
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
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parents:
1544
diff
changeset
|
3431 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
|
3432 |
1354
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diff
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|
3433 spa_strfree(vd->vdev_path); |
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diff
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|
3434 vd->vdev_path = spa_strdup(newpath); |
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diff
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|
3435 |
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diff
changeset
|
3436 vdev_config_dirty(vd->vdev_top); |
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diff
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|
3437 |
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diff
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|
3438 return (spa_vdev_exit(spa, NULL, txg, 0)); |
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diff
changeset
|
3439 } |
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|
3440 |
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|
3441 /* |
789 | 3442 * ========================================================================== |
3443 * SPA Scrubbing | |
3444 * ========================================================================== | |
3445 */ | |
3446 | |
7046
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diff
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|
3447 int |
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diff
changeset
|
3448 spa_scrub(spa_t *spa, pool_scrub_type_t type) |
789 | 3449 { |
7754
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|
3450 ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == 0); |
4808 | 3451 |
789 | 3452 if ((uint_t)type >= POOL_SCRUB_TYPES) |
3453 return (ENOTSUP); | |
3454 | |
3455 /* | |
7046
361307ae060d
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diff
changeset
|
3456 * If a resilver was requested, but there is no DTL on a |
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diff
changeset
|
3457 * writeable leaf device, we have nothing to do. |
789 | 3458 */ |
7046
361307ae060d
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diff
changeset
|
3459 if (type == POOL_SCRUB_RESILVER && |
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diff
changeset
|
3460 !vdev_resilver_needed(spa->spa_root_vdev, NULL, NULL)) { |
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diff
changeset
|
3461 spa_async_request(spa, SPA_ASYNC_RESILVER_DONE); |
1544 | 3462 return (0); |
3463 } | |
789 | 3464 |
7046
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diff
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|
3465 if (type == POOL_SCRUB_EVERYTHING && |
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diff
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|
3466 spa->spa_dsl_pool->dp_scrub_func != SCRUB_FUNC_NONE && |
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diff
changeset
|
3467 spa->spa_dsl_pool->dp_scrub_isresilver) |
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diff
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|
3468 return (EBUSY); |
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diff
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|
3469 |
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diff
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|
3470 if (type == POOL_SCRUB_EVERYTHING || type == POOL_SCRUB_RESILVER) { |
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diff
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|
3471 return (dsl_pool_scrub_clean(spa->spa_dsl_pool)); |
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diff
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|
3472 } else if (type == POOL_SCRUB_NONE) { |
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diff
changeset
|
3473 return (dsl_pool_scrub_cancel(spa->spa_dsl_pool)); |
1544 | 3474 } else { |
7046
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changeset
|
3475 return (EINVAL); |
1544 | 3476 } |
789 | 3477 } |
3478 | |
1544 | 3479 /* |
3480 * ========================================================================== | |
3481 * SPA async task processing | |
3482 * ========================================================================== | |
3483 */ | |
3484 | |
3485 static void | |
4451 | 3486 spa_async_remove(spa_t *spa, vdev_t *vd) |
789 | 3487 { |
7361
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diff
changeset
|
3488 if (vd->vdev_remove_wanted) { |
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diff
changeset
|
3489 vd->vdev_remove_wanted = 0; |
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diff
changeset
|
3490 vdev_set_state(vd, B_FALSE, VDEV_STATE_REMOVED, VDEV_AUX_NONE); |
7754
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3491 vdev_clear(spa, vd); |
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|
3492 vdev_state_dirty(vd->vdev_top); |
1544 | 3493 } |
7361
e7d1b928b483
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diff
changeset
|
3494 |
7754
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|
3495 for (int c = 0; c < vd->vdev_children; c++) |
7361
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diff
changeset
|
3496 spa_async_remove(spa, vd->vdev_child[c]); |
1544 | 3497 } |
3498 | |
3499 static void | |
7754
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|
3500 spa_async_probe(spa_t *spa, vdev_t *vd) |
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|
3501 { |
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|
3502 if (vd->vdev_probe_wanted) { |
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|
3503 vd->vdev_probe_wanted = 0; |
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3504 vdev_reopen(vd); /* vdev_open() does the actual probe */ |
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3505 } |
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3506 |
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3507 for (int c = 0; c < vd->vdev_children; c++) |
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3508 spa_async_probe(spa, vd->vdev_child[c]); |
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3509 } |
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3510 |
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3511 static void |
1544 | 3512 spa_async_thread(spa_t *spa) |
3513 { | |
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3514 int tasks; |
1544 | 3515 |
3516 ASSERT(spa->spa_sync_on); | |
789 | 3517 |
1544 | 3518 mutex_enter(&spa->spa_async_lock); |
3519 tasks = spa->spa_async_tasks; | |
3520 spa->spa_async_tasks = 0; | |
3521 mutex_exit(&spa->spa_async_lock); | |
3522 | |
3523 /* | |
1635
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3524 * See if the config needs to be updated. |
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3525 */ |
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3526 if (tasks & SPA_ASYNC_CONFIG_UPDATE) { |
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3527 mutex_enter(&spa_namespace_lock); |
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3528 spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); |
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3529 mutex_exit(&spa_namespace_lock); |
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3530 } |
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3531 |
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3532 /* |
4451 | 3533 * See if any devices need to be marked REMOVED. |
1544 | 3534 */ |
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3535 if (tasks & SPA_ASYNC_REMOVE) { |
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3536 spa_vdev_state_enter(spa); |
4451 | 3537 spa_async_remove(spa, spa->spa_root_vdev); |
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3538 for (int i = 0; i < spa->spa_l2cache.sav_count; i++) |
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3539 spa_async_remove(spa, spa->spa_l2cache.sav_vdevs[i]); |
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3540 for (int i = 0; i < spa->spa_spares.sav_count; i++) |
7361
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3541 spa_async_remove(spa, spa->spa_spares.sav_vdevs[i]); |
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3542 (void) spa_vdev_state_exit(spa, NULL, 0); |
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3543 } |
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3544 |
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3545 /* |
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3546 * See if any devices need to be probed. |
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3547 */ |
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3548 if (tasks & SPA_ASYNC_PROBE) { |
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3549 spa_vdev_state_enter(spa); |
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3550 spa_async_probe(spa, spa->spa_root_vdev); |
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3551 (void) spa_vdev_state_exit(spa, NULL, 0); |
4451 | 3552 } |
1544 | 3553 |
3554 /* | |
3555 * If any devices are done replacing, detach them. | |
3556 */ | |
4451 | 3557 if (tasks & SPA_ASYNC_RESILVER_DONE) |
3558 spa_vdev_resilver_done(spa); | |
789 | 3559 |
1544 | 3560 /* |
3561 * Kick off a resilver. | |
3562 */ | |
7046
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3563 if (tasks & SPA_ASYNC_RESILVER) |
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3564 VERIFY(spa_scrub(spa, POOL_SCRUB_RESILVER) == 0); |
1544 | 3565 |
3566 /* | |
3567 * Let the world know that we're done. | |
3568 */ | |
3569 mutex_enter(&spa->spa_async_lock); | |
3570 spa->spa_async_thread = NULL; | |
3571 cv_broadcast(&spa->spa_async_cv); | |
3572 mutex_exit(&spa->spa_async_lock); | |
3573 thread_exit(); | |
3574 } | |
3575 | |
3576 void | |
3577 spa_async_suspend(spa_t *spa) | |
3578 { | |
3579 mutex_enter(&spa->spa_async_lock); | |
3580 spa->spa_async_suspended++; | |
3581 while (spa->spa_async_thread != NULL) | |
3582 cv_wait(&spa->spa_async_cv, &spa->spa_async_lock); | |
3583 mutex_exit(&spa->spa_async_lock); | |
3584 } | |
3585 | |
3586 void | |
3587 spa_async_resume(spa_t *spa) | |
3588 { | |
3589 mutex_enter(&spa->spa_async_lock); | |
3590 ASSERT(spa->spa_async_suspended != 0); | |
3591 spa->spa_async_suspended--; | |
3592 mutex_exit(&spa->spa_async_lock); | |
3593 } | |
3594 | |
3595 static void | |
3596 spa_async_dispatch(spa_t *spa) | |
3597 { | |
3598 mutex_enter(&spa->spa_async_lock); | |
3599 if (spa->spa_async_tasks && !spa->spa_async_suspended && | |
1635
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3600 spa->spa_async_thread == NULL && |
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3601 rootdir != NULL && !vn_is_readonly(rootdir)) |
1544 | 3602 spa->spa_async_thread = thread_create(NULL, 0, |
3603 spa_async_thread, spa, 0, &p0, TS_RUN, maxclsyspri); | |
3604 mutex_exit(&spa->spa_async_lock); | |
3605 } | |
3606 | |
3607 void | |
3608 spa_async_request(spa_t *spa, int task) | |
3609 { | |
3610 mutex_enter(&spa->spa_async_lock); | |
3611 spa->spa_async_tasks |= task; | |
3612 mutex_exit(&spa->spa_async_lock); | |
789 | 3613 } |
3614 | |
3615 /* | |
3616 * ========================================================================== | |
3617 * SPA syncing routines | |
3618 * ========================================================================== | |
3619 */ | |
3620 | |
3621 static void | |
3622 spa_sync_deferred_frees(spa_t *spa, uint64_t txg) | |
3623 { | |
3624 bplist_t *bpl = &spa->spa_sync_bplist; | |
3625 dmu_tx_t *tx; | |
3626 blkptr_t blk; | |
3627 uint64_t itor = 0; | |
3628 zio_t *zio; | |
3629 int error; | |
3630 uint8_t c = 1; | |
3631 | |
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3632 zio = zio_root(spa, NULL, NULL, ZIO_FLAG_CANFAIL); |
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3633 |
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3634 while (bplist_iterate(bpl, &itor, &blk) == 0) { |
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3635 ASSERT(blk.blk_birth < txg); |
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3636 zio_nowait(zio_free(zio, spa, txg, &blk, NULL, NULL, |
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3637 ZIO_FLAG_MUSTSUCCEED)); |
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3638 } |
789 | 3639 |
3640 error = zio_wait(zio); | |
3641 ASSERT3U(error, ==, 0); | |
3642 | |
3643 tx = dmu_tx_create_assigned(spa->spa_dsl_pool, txg); | |
3644 bplist_vacate(bpl, tx); | |
3645 | |
3646 /* | |
3647 * Pre-dirty the first block so we sync to convergence faster. | |
3648 * (Usually only the first block is needed.) | |
3649 */ | |
3650 dmu_write(spa->spa_meta_objset, spa->spa_sync_bplist_obj, 0, 1, &c, tx); | |
3651 dmu_tx_commit(tx); | |
3652 } | |
3653 | |
3654 static void | |
2082 | 3655 spa_sync_nvlist(spa_t *spa, uint64_t obj, nvlist_t *nv, dmu_tx_t *tx) |
3656 { | |
3657 char *packed = NULL; | |
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3658 size_t bufsize; |
2082 | 3659 size_t nvsize = 0; |
3660 dmu_buf_t *db; | |
3661 | |
3662 VERIFY(nvlist_size(nv, &nvsize, NV_ENCODE_XDR) == 0); | |
3663 | |
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3664 /* |
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3665 * Write full (SPA_CONFIG_BLOCKSIZE) blocks of configuration |
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3666 * information. This avoids the dbuf_will_dirty() path and |
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3667 * saves us a pre-read to get data we don't actually care about. |
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3668 */ |
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3669 bufsize = P2ROUNDUP(nvsize, SPA_CONFIG_BLOCKSIZE); |
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3670 packed = kmem_alloc(bufsize, KM_SLEEP); |
2082 | 3671 |
3672 VERIFY(nvlist_pack(nv, &packed, &nvsize, NV_ENCODE_XDR, | |
3673 KM_SLEEP) == 0); | |
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3674 bzero(packed + nvsize, bufsize - nvsize); |
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3675 |
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3676 dmu_write(spa->spa_meta_objset, obj, 0, bufsize, packed, tx); |
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3677 |
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3678 kmem_free(packed, bufsize); |
2082 | 3679 |
3680 VERIFY(0 == dmu_bonus_hold(spa->spa_meta_objset, obj, FTAG, &db)); | |
3681 dmu_buf_will_dirty(db, tx); | |
3682 *(uint64_t *)db->db_data = nvsize; | |
3683 dmu_buf_rele(db, FTAG); | |
3684 } | |
3685 | |
3686 static void | |
5450 | 3687 spa_sync_aux_dev(spa_t *spa, spa_aux_vdev_t *sav, dmu_tx_t *tx, |
3688 const char *config, const char *entry) | |
2082 | 3689 { |
3690 nvlist_t *nvroot; | |
5450 | 3691 nvlist_t **list; |
2082 | 3692 int i; |
3693 | |
5450 | 3694 if (!sav->sav_sync) |
2082 | 3695 return; |
3696 | |
3697 /* | |
5450 | 3698 * Update the MOS nvlist describing the list of available devices. |
3699 * spa_validate_aux() will have already made sure this nvlist is | |
4451 | 3700 * valid and the vdevs are labeled appropriately. |
2082 | 3701 */ |
5450 | 3702 if (sav->sav_object == 0) { |
3703 sav->sav_object = dmu_object_alloc(spa->spa_meta_objset, | |
3704 DMU_OT_PACKED_NVLIST, 1 << 14, DMU_OT_PACKED_NVLIST_SIZE, | |
3705 sizeof (uint64_t), tx); | |
2082 | 3706 VERIFY(zap_update(spa->spa_meta_objset, |
5450 | 3707 DMU_POOL_DIRECTORY_OBJECT, entry, sizeof (uint64_t), 1, |
3708 &sav->sav_object, tx) == 0); | |
2082 | 3709 } |
3710 | |
3711 VERIFY(nvlist_alloc(&nvroot, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
5450 | 3712 if (sav->sav_count == 0) { |
3713 VERIFY(nvlist_add_nvlist_array(nvroot, config, NULL, 0) == 0); | |
2082 | 3714 } else { |
5450 | 3715 list = kmem_alloc(sav->sav_count * sizeof (void *), KM_SLEEP); |
3716 for (i = 0; i < sav->sav_count; i++) | |
3717 list[i] = vdev_config_generate(spa, sav->sav_vdevs[i], | |
3718 B_FALSE, B_FALSE, B_TRUE); | |
3719 VERIFY(nvlist_add_nvlist_array(nvroot, config, list, | |
3720 sav->sav_count) == 0); | |
3721 for (i = 0; i < sav->sav_count; i++) | |
3722 nvlist_free(list[i]); | |
3723 kmem_free(list, sav->sav_count * sizeof (void *)); | |
2082 | 3724 } |
3725 | |
5450 | 3726 spa_sync_nvlist(spa, sav->sav_object, nvroot, tx); |
2926 | 3727 nvlist_free(nvroot); |
2082 | 3728 |
5450 | 3729 sav->sav_sync = B_FALSE; |
2082 | 3730 } |
3731 | |
3732 static void | |
789 | 3733 spa_sync_config_object(spa_t *spa, dmu_tx_t *tx) |
3734 { | |
3735 nvlist_t *config; | |
3736 | |
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3737 if (list_is_empty(&spa->spa_config_dirty_list)) |
789 | 3738 return; |
3739 | |
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3740 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); |
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3741 |
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3742 config = spa_config_generate(spa, spa->spa_root_vdev, |
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3743 dmu_tx_get_txg(tx), B_FALSE); |
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3744 |
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3745 spa_config_exit(spa, SCL_STATE, FTAG); |
789 | 3746 |
1635
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3747 if (spa->spa_config_syncing) |
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3748 nvlist_free(spa->spa_config_syncing); |
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3749 spa->spa_config_syncing = config; |
789 | 3750 |
2082 | 3751 spa_sync_nvlist(spa, spa->spa_config_object, config, tx); |
789 | 3752 } |
3753 | |
5094 | 3754 /* |
3755 * Set zpool properties. | |
3756 */ | |
3912 | 3757 static void |
4543 | 3758 spa_sync_props(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) |
3912 | 3759 { |
3760 spa_t *spa = arg1; | |
5094 | 3761 objset_t *mos = spa->spa_meta_objset; |
3912 | 3762 nvlist_t *nvp = arg2; |
5094 | 3763 nvpair_t *elem; |
4451 | 3764 uint64_t intval; |
6643
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3765 char *strval; |
5094 | 3766 zpool_prop_t prop; |
3767 const char *propname; | |
3768 zprop_type_t proptype; | |
6643
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3769 spa_config_dirent_t *dp; |
5094 | 3770 |
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3771 mutex_enter(&spa->spa_props_lock); |
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3772 |
5094 | 3773 elem = NULL; |
3774 while ((elem = nvlist_next_nvpair(nvp, elem))) { | |
3775 switch (prop = zpool_name_to_prop(nvpair_name(elem))) { | |
3776 case ZPOOL_PROP_VERSION: | |
3777 /* | |
3778 * Only set version for non-zpool-creation cases | |
3779 * (set/import). spa_create() needs special care | |
3780 * for version setting. | |
3781 */ | |
3782 if (tx->tx_txg != TXG_INITIAL) { | |
3783 VERIFY(nvpair_value_uint64(elem, | |
3784 &intval) == 0); | |
3785 ASSERT(intval <= SPA_VERSION); | |
3786 ASSERT(intval >= spa_version(spa)); | |
3787 spa->spa_uberblock.ub_version = intval; | |
3788 vdev_config_dirty(spa->spa_root_vdev); | |
3789 } | |
3790 break; | |
3791 | |
3792 case ZPOOL_PROP_ALTROOT: | |
3793 /* | |
3794 * 'altroot' is a non-persistent property. It should | |
3795 * have been set temporarily at creation or import time. | |
3796 */ | |
3797 ASSERT(spa->spa_root != NULL); | |
3798 break; | |
3799 | |
5363 | 3800 case ZPOOL_PROP_CACHEFILE: |
5094 | 3801 /* |
5363 | 3802 * 'cachefile' is a non-persistent property, but note |
3803 * an async request that the config cache needs to be | |
3804 * udpated. | |
5094 | 3805 */ |
5363 | 3806 VERIFY(nvpair_value_string(elem, &strval) == 0); |
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3807 |
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3808 dp = kmem_alloc(sizeof (spa_config_dirent_t), KM_SLEEP); |
6643
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3809 |
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3810 if (strval[0] == '\0') |
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3811 dp->scd_path = spa_strdup(spa_config_path); |
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3812 else if (strcmp(strval, "none") == 0) |
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3813 dp->scd_path = NULL; |
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3814 else |
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3815 dp->scd_path = spa_strdup(strval); |
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3816 |
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3817 list_insert_head(&spa->spa_config_list, dp); |
5363 | 3818 spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE); |
4543 | 3819 break; |
5094 | 3820 default: |
3821 /* | |
3822 * Set pool property values in the poolprops mos object. | |
3823 */ | |
3824 if (spa->spa_pool_props_object == 0) { | |
3825 objset_t *mos = spa->spa_meta_objset; | |
3826 | |
3827 VERIFY((spa->spa_pool_props_object = | |
3828 zap_create(mos, DMU_OT_POOL_PROPS, | |
3829 DMU_OT_NONE, 0, tx)) > 0); | |
3830 | |
3831 VERIFY(zap_update(mos, | |
3832 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_PROPS, | |
3833 8, 1, &spa->spa_pool_props_object, tx) | |
3834 == 0); | |
3835 } | |
3836 | |
3837 /* normalize the property name */ | |
3838 propname = zpool_prop_to_name(prop); | |
3839 proptype = zpool_prop_get_type(prop); | |
3840 | |
3841 if (nvpair_type(elem) == DATA_TYPE_STRING) { | |
3842 ASSERT(proptype == PROP_TYPE_STRING); | |
3843 VERIFY(nvpair_value_string(elem, &strval) == 0); | |
3844 VERIFY(zap_update(mos, | |
3845 spa->spa_pool_props_object, propname, | |
3846 1, strlen(strval) + 1, strval, tx) == 0); | |
3847 | |
3848 } else if (nvpair_type(elem) == DATA_TYPE_UINT64) { | |
3849 VERIFY(nvpair_value_uint64(elem, &intval) == 0); | |
3850 | |
3851 if (proptype == PROP_TYPE_INDEX) { | |
3852 const char *unused; | |
3853 VERIFY(zpool_prop_index_to_string( | |
3854 prop, intval, &unused) == 0); | |
3855 } | |
3856 VERIFY(zap_update(mos, | |
3857 spa->spa_pool_props_object, propname, | |
3858 8, 1, &intval, tx) == 0); | |
3859 } else { | |
3860 ASSERT(0); /* not allowed */ | |
3861 } | |
3862 | |
5329 | 3863 switch (prop) { |
3864 case ZPOOL_PROP_DELEGATION: | |
5094 | 3865 spa->spa_delegation = intval; |
5329 | 3866 break; |
3867 case ZPOOL_PROP_BOOTFS: | |
5094 | 3868 spa->spa_bootfs = intval; |
5329 | 3869 break; |
3870 case ZPOOL_PROP_FAILUREMODE: | |
3871 spa->spa_failmode = intval; | |
3872 break; | |
3873 default: | |
3874 break; | |
3875 } | |
3912 | 3876 } |
5094 | 3877 |
3878 /* log internal history if this is not a zpool create */ | |
3879 if (spa_version(spa) >= SPA_VERSION_ZPOOL_HISTORY && | |
3880 tx->tx_txg != TXG_INITIAL) { | |
3881 spa_history_internal_log(LOG_POOL_PROPSET, | |
3882 spa, tx, cr, "%s %lld %s", | |
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3883 nvpair_name(elem), intval, spa_name(spa)); |
5094 | 3884 } |
3912 | 3885 } |
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3886 |
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3887 mutex_exit(&spa->spa_props_lock); |
3912 | 3888 } |
3889 | |
789 | 3890 /* |
3891 * Sync the specified transaction group. New blocks may be dirtied as | |
3892 * part of the process, so we iterate until it converges. | |
3893 */ | |
3894 void | |
3895 spa_sync(spa_t *spa, uint64_t txg) | |
3896 { | |
3897 dsl_pool_t *dp = spa->spa_dsl_pool; | |
3898 objset_t *mos = spa->spa_meta_objset; | |
3899 bplist_t *bpl = &spa->spa_sync_bplist; | |
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3900 vdev_t *rvd = spa->spa_root_vdev; |
789 | 3901 vdev_t *vd; |
3902 dmu_tx_t *tx; | |
3903 int dirty_vdevs; | |
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3904 int error; |
789 | 3905 |
3906 /* | |
3907 * Lock out configuration changes. | |
3908 */ | |
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3909 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); |
789 | 3910 |
3911 spa->spa_syncing_txg = txg; | |
3912 spa->spa_sync_pass = 0; | |
3913 | |
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3914 /* |
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3915 * If there are any pending vdev state changes, convert them |
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3916 * into config changes that go out with this transaction group. |
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3917 */ |
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3918 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); |
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3919 while ((vd = list_head(&spa->spa_state_dirty_list)) != NULL) { |
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3920 vdev_state_clean(vd); |
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3921 vdev_config_dirty(vd); |
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3922 } |
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3923 spa_config_exit(spa, SCL_STATE, FTAG); |
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3924 |
1544 | 3925 VERIFY(0 == bplist_open(bpl, mos, spa->spa_sync_bplist_obj)); |
789 | 3926 |
2082 | 3927 tx = dmu_tx_create_assigned(dp, txg); |
3928 | |
3929 /* | |
4577 | 3930 * If we are upgrading to SPA_VERSION_RAIDZ_DEFLATE this txg, |
2082 | 3931 * set spa_deflate if we have no raid-z vdevs. |
3932 */ | |
4577 | 3933 if (spa->spa_ubsync.ub_version < SPA_VERSION_RAIDZ_DEFLATE && |
3934 spa->spa_uberblock.ub_version >= SPA_VERSION_RAIDZ_DEFLATE) { | |
2082 | 3935 int i; |
3936 | |
3937 for (i = 0; i < rvd->vdev_children; i++) { | |
3938 vd = rvd->vdev_child[i]; | |
3939 if (vd->vdev_deflate_ratio != SPA_MINBLOCKSIZE) | |
3940 break; | |
3941 } | |
3942 if (i == rvd->vdev_children) { | |
3943 spa->spa_deflate = TRUE; | |
3944 VERIFY(0 == zap_add(spa->spa_meta_objset, | |
3945 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
3946 sizeof (uint64_t), 1, &spa->spa_deflate, tx)); | |
3947 } | |
3948 } | |
3949 | |
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3950 if (spa->spa_ubsync.ub_version < SPA_VERSION_ORIGIN && |
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3951 spa->spa_uberblock.ub_version >= SPA_VERSION_ORIGIN) { |
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3952 dsl_pool_create_origin(dp, tx); |
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3953 |
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3954 /* Keeping the origin open increases spa_minref */ |
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3955 spa->spa_minref += 3; |
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3956 } |
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3957 |
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3958 if (spa->spa_ubsync.ub_version < SPA_VERSION_NEXT_CLONES && |
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3959 spa->spa_uberblock.ub_version >= SPA_VERSION_NEXT_CLONES) { |
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3960 dsl_pool_upgrade_clones(dp, tx); |
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3961 } |
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3962 |
789 | 3963 /* |
3964 * If anything has changed in this txg, push the deferred frees | |
3965 * from the previous txg. If not, leave them alone so that we | |
3966 * don't generate work on an otherwise idle system. | |
3967 */ | |
3968 if (!txg_list_empty(&dp->dp_dirty_datasets, txg) || | |
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3969 !txg_list_empty(&dp->dp_dirty_dirs, txg) || |
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3970 !txg_list_empty(&dp->dp_sync_tasks, txg)) |
789 | 3971 spa_sync_deferred_frees(spa, txg); |
3972 | |
3973 /* | |
3974 * Iterate to convergence. | |
3975 */ | |
3976 do { | |
3977 spa->spa_sync_pass++; | |
3978 | |
3979 spa_sync_config_object(spa, tx); | |
5450 | 3980 spa_sync_aux_dev(spa, &spa->spa_spares, tx, |
3981 ZPOOL_CONFIG_SPARES, DMU_POOL_SPARES); | |
3982 spa_sync_aux_dev(spa, &spa->spa_l2cache, tx, | |
3983 ZPOOL_CONFIG_L2CACHE, DMU_POOL_L2CACHE); | |
1544 | 3984 spa_errlog_sync(spa, txg); |
789 | 3985 dsl_pool_sync(dp, txg); |
3986 | |
3987 dirty_vdevs = 0; | |
3988 while (vd = txg_list_remove(&spa->spa_vdev_txg_list, txg)) { | |
3989 vdev_sync(vd, txg); | |
3990 dirty_vdevs++; | |
3991 } | |
3992 | |
3993 bplist_sync(bpl, tx); | |
3994 } while (dirty_vdevs); | |
3995 | |
3996 bplist_close(bpl); | |
3997 | |
3998 dprintf("txg %llu passes %d\n", txg, spa->spa_sync_pass); | |
3999 | |
4000 /* | |
4001 * Rewrite the vdev configuration (which includes the uberblock) | |
4002 * to commit the transaction group. | |
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4003 * |
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4004 * If there are no dirty vdevs, we sync the uberblock to a few |
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4005 * random top-level vdevs that are known to be visible in the |
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4006 * config cache (see spa_vdev_add() for a complete description). |
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4007 * If there *are* dirty vdevs, sync the uberblock to all vdevs. |
789 | 4008 */ |
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4009 for (;;) { |
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4010 /* |
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4011 * We hold SCL_STATE to prevent vdev open/close/etc. |
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4012 * while we're attempting to write the vdev labels. |
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4013 */ |
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4014 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); |
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4015 |
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4016 if (list_is_empty(&spa->spa_config_dirty_list)) { |
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4017 vdev_t *svd[SPA_DVAS_PER_BP]; |
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4018 int svdcount = 0; |
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4019 int children = rvd->vdev_children; |
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4020 int c0 = spa_get_random(children); |
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4021 int c; |
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4022 |
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4023 for (c = 0; c < children; c++) { |
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4024 vd = rvd->vdev_child[(c0 + c) % children]; |
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4025 if (vd->vdev_ms_array == 0 || vd->vdev_islog) |
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4026 continue; |
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4027 svd[svdcount++] = vd; |
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4028 if (svdcount == SPA_DVAS_PER_BP) |
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4029 break; |
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4030 } |
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4031 error = vdev_config_sync(svd, svdcount, txg); |
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4032 } else { |
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4033 error = vdev_config_sync(rvd->vdev_child, |
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4034 rvd->vdev_children, txg); |
1635
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4035 } |
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4036 |
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4037 spa_config_exit(spa, SCL_STATE, FTAG); |
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4038 |
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4039 if (error == 0) |
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4040 break; |
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4041 zio_suspend(spa, NULL); |
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4042 zio_resume_wait(spa); |
1635
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4043 } |
2082 | 4044 dmu_tx_commit(tx); |
4045 | |
1635
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4046 /* |
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4047 * Clear the dirty config list. |
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4048 */ |
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4049 while ((vd = list_head(&spa->spa_config_dirty_list)) != NULL) |
1635
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4050 vdev_config_clean(vd); |
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4051 |
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4052 /* |
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4053 * Now that the new config has synced transactionally, |
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4054 * let it become visible to the config cache. |
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4055 */ |
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4056 if (spa->spa_config_syncing != NULL) { |
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4057 spa_config_set(spa, spa->spa_config_syncing); |
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4058 spa->spa_config_txg = txg; |
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4059 spa->spa_config_syncing = NULL; |
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4060 } |
789 | 4061 |
7046
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4062 spa->spa_traverse_wanted = B_TRUE; |
789 | 4063 rw_enter(&spa->spa_traverse_lock, RW_WRITER); |
7046
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4064 spa->spa_traverse_wanted = B_FALSE; |
789 | 4065 spa->spa_ubsync = spa->spa_uberblock; |
4066 rw_exit(&spa->spa_traverse_lock); | |
4067 | |
4068 /* | |
4069 * Clean up the ZIL records for the synced txg. | |
4070 */ | |
4071 dsl_pool_zil_clean(dp); | |
4072 | |
4073 /* | |
4074 * Update usable space statistics. | |
4075 */ | |
4076 while (vd = txg_list_remove(&spa->spa_vdev_txg_list, TXG_CLEAN(txg))) | |
4077 vdev_sync_done(vd, txg); | |
4078 | |
4079 /* | |
4080 * It had better be the case that we didn't dirty anything | |
2082 | 4081 * since vdev_config_sync(). |
789 | 4082 */ |
4083 ASSERT(txg_list_empty(&dp->dp_dirty_datasets, txg)); | |
4084 ASSERT(txg_list_empty(&dp->dp_dirty_dirs, txg)); | |
4085 ASSERT(txg_list_empty(&spa->spa_vdev_txg_list, txg)); | |
4086 ASSERT(bpl->bpl_queue == NULL); | |
4087 | |
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4088 spa_config_exit(spa, SCL_CONFIG, FTAG); |
1544 | 4089 |
4090 /* | |
4091 * If any async tasks have been requested, kick them off. | |
4092 */ | |
4093 spa_async_dispatch(spa); | |
789 | 4094 } |
4095 | |
4096 /* | |
4097 * Sync all pools. We don't want to hold the namespace lock across these | |
4098 * operations, so we take a reference on the spa_t and drop the lock during the | |
4099 * sync. | |
4100 */ | |
4101 void | |
4102 spa_sync_allpools(void) | |
4103 { | |
4104 spa_t *spa = NULL; | |
4105 mutex_enter(&spa_namespace_lock); | |
4106 while ((spa = spa_next(spa)) != NULL) { | |
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4107 if (spa_state(spa) != POOL_STATE_ACTIVE || spa_suspended(spa)) |
789 | 4108 continue; |
4109 spa_open_ref(spa, FTAG); | |
4110 mutex_exit(&spa_namespace_lock); | |
4111 txg_wait_synced(spa_get_dsl(spa), 0); | |
4112 mutex_enter(&spa_namespace_lock); | |
4113 spa_close(spa, FTAG); | |
4114 } | |
4115 mutex_exit(&spa_namespace_lock); | |
4116 } | |
4117 | |
4118 /* | |
4119 * ========================================================================== | |
4120 * Miscellaneous routines | |
4121 * ========================================================================== | |
4122 */ | |
4123 | |
4124 /* | |
4125 * Remove all pools in the system. | |
4126 */ | |
4127 void | |
4128 spa_evict_all(void) | |
4129 { | |
4130 spa_t *spa; | |
4131 | |
4132 /* | |
4133 * Remove all cached state. All pools should be closed now, | |
4134 * so every spa in the AVL tree should be unreferenced. | |
4135 */ | |
4136 mutex_enter(&spa_namespace_lock); | |
4137 while ((spa = spa_next(NULL)) != NULL) { | |
4138 /* | |
1544 | 4139 * Stop async tasks. The async thread may need to detach |
4140 * a device that's been replaced, which requires grabbing | |
4141 * spa_namespace_lock, so we must drop it here. | |
789 | 4142 */ |
4143 spa_open_ref(spa, FTAG); | |
4144 mutex_exit(&spa_namespace_lock); | |
1544 | 4145 spa_async_suspend(spa); |
4808 | 4146 mutex_enter(&spa_namespace_lock); |
789 | 4147 spa_close(spa, FTAG); |
4148 | |
4149 if (spa->spa_state != POOL_STATE_UNINITIALIZED) { | |
4150 spa_unload(spa); | |
4151 spa_deactivate(spa); | |
4152 } | |
4153 spa_remove(spa); | |
4154 } | |
4155 mutex_exit(&spa_namespace_lock); | |
4156 } | |
1544 | 4157 |
4158 vdev_t * | |
6643
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4159 spa_lookup_by_guid(spa_t *spa, uint64_t guid, boolean_t l2cache) |
1544 | 4160 { |
6643
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4161 vdev_t *vd; |
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4162 int i; |
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4163 |
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4164 if ((vd = vdev_lookup_by_guid(spa->spa_root_vdev, guid)) != NULL) |
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4165 return (vd); |
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4166 |
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4167 if (l2cache) { |
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4168 for (i = 0; i < spa->spa_l2cache.sav_count; i++) { |
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4169 vd = spa->spa_l2cache.sav_vdevs[i]; |
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4170 if (vd->vdev_guid == guid) |
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|
4171 return (vd); |
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|
4172 } |
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4173 } |
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4174 |
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4175 return (NULL); |
1544 | 4176 } |
1760 | 4177 |
4178 void | |
5094 | 4179 spa_upgrade(spa_t *spa, uint64_t version) |
1760 | 4180 { |
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4181 spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
1760 | 4182 |
4183 /* | |
4184 * This should only be called for a non-faulted pool, and since a | |
4185 * future version would result in an unopenable pool, this shouldn't be | |
4186 * possible. | |
4187 */ | |
4577 | 4188 ASSERT(spa->spa_uberblock.ub_version <= SPA_VERSION); |
5094 | 4189 ASSERT(version >= spa->spa_uberblock.ub_version); |
4190 | |
4191 spa->spa_uberblock.ub_version = version; | |
1760 | 4192 vdev_config_dirty(spa->spa_root_vdev); |
4193 | |
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4194 spa_config_exit(spa, SCL_ALL, FTAG); |
2082 | 4195 |
4196 txg_wait_synced(spa_get_dsl(spa), 0); | |
1760 | 4197 } |
2082 | 4198 |
4199 boolean_t | |
4200 spa_has_spare(spa_t *spa, uint64_t guid) | |
4201 { | |
4202 int i; | |
3377
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4203 uint64_t spareguid; |
5450 | 4204 spa_aux_vdev_t *sav = &spa->spa_spares; |
4205 | |
4206 for (i = 0; i < sav->sav_count; i++) | |
4207 if (sav->sav_vdevs[i]->vdev_guid == guid) | |
2082 | 4208 return (B_TRUE); |
4209 | |
5450 | 4210 for (i = 0; i < sav->sav_npending; i++) { |
4211 if (nvlist_lookup_uint64(sav->sav_pending[i], ZPOOL_CONFIG_GUID, | |
4212 &spareguid) == 0 && spareguid == guid) | |
3377
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4213 return (B_TRUE); |
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|
4214 } |
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4215 |
2082 | 4216 return (B_FALSE); |
4217 } | |
3912 | 4218 |
4451 | 4219 /* |
7214
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4220 * Check if a pool has an active shared spare device. |
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4221 * Note: reference count of an active spare is 2, as a spare and as a replace |
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4222 */ |
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4223 static boolean_t |
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4224 spa_has_active_shared_spare(spa_t *spa) |
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4225 { |
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4226 int i, refcnt; |
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4227 uint64_t pool; |
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4228 spa_aux_vdev_t *sav = &spa->spa_spares; |
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4229 |
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4230 for (i = 0; i < sav->sav_count; i++) { |
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4231 if (spa_spare_exists(sav->sav_vdevs[i]->vdev_guid, &pool, |
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4232 &refcnt) && pool != 0ULL && pool == spa_guid(spa) && |
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4233 refcnt > 2) |
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4234 return (B_TRUE); |
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4235 } |
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4236 |
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4237 return (B_FALSE); |
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4238 } |
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4239 |
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4240 /* |
4451 | 4241 * Post a sysevent corresponding to the given event. The 'name' must be one of |
4242 * the event definitions in sys/sysevent/eventdefs.h. The payload will be | |
4243 * filled in from the spa and (optionally) the vdev. This doesn't do anything | |
4244 * in the userland libzpool, as we don't want consumers to misinterpret ztest | |
4245 * or zdb as real changes. | |
4246 */ | |
4247 void | |
4248 spa_event_notify(spa_t *spa, vdev_t *vd, const char *name) | |
4249 { | |
4250 #ifdef _KERNEL | |
4251 sysevent_t *ev; | |
4252 sysevent_attr_list_t *attr = NULL; | |
4253 sysevent_value_t value; | |
4254 sysevent_id_t eid; | |
4255 | |
4256 ev = sysevent_alloc(EC_ZFS, (char *)name, SUNW_KERN_PUB "zfs", | |
4257 SE_SLEEP); | |
4258 | |
4259 value.value_type = SE_DATA_TYPE_STRING; | |
4260 value.value.sv_string = spa_name(spa); | |
4261 if (sysevent_add_attr(&attr, ZFS_EV_POOL_NAME, &value, SE_SLEEP) != 0) | |
4262 goto done; | |
4263 | |
4264 value.value_type = SE_DATA_TYPE_UINT64; | |
4265 value.value.sv_uint64 = spa_guid(spa); | |
4266 if (sysevent_add_attr(&attr, ZFS_EV_POOL_GUID, &value, SE_SLEEP) != 0) | |
4267 goto done; | |
4268 | |
4269 if (vd) { | |
4270 value.value_type = SE_DATA_TYPE_UINT64; | |
4271 value.value.sv_uint64 = vd->vdev_guid; | |
4272 if (sysevent_add_attr(&attr, ZFS_EV_VDEV_GUID, &value, | |
4273 SE_SLEEP) != 0) | |
4274 goto done; | |
4275 | |
4276 if (vd->vdev_path) { | |
4277 value.value_type = SE_DATA_TYPE_STRING; | |
4278 value.value.sv_string = vd->vdev_path; | |
4279 if (sysevent_add_attr(&attr, ZFS_EV_VDEV_PATH, | |
4280 &value, SE_SLEEP) != 0) | |
4281 goto done; | |
4282 } | |
4283 } | |
4284 | |
5756
05eb4c1ff492
6585441 spa_event_notify() doesn't pass its attributes
eschrock
parents:
5688
diff
changeset
|
4285 if (sysevent_attach_attributes(ev, attr) != 0) |
05eb4c1ff492
6585441 spa_event_notify() doesn't pass its attributes
eschrock
parents:
5688
diff
changeset
|
4286 goto done; |
05eb4c1ff492
6585441 spa_event_notify() doesn't pass its attributes
eschrock
parents:
5688
diff
changeset
|
4287 attr = NULL; |
05eb4c1ff492
6585441 spa_event_notify() doesn't pass its attributes
eschrock
parents:
5688
diff
changeset
|
4288 |
4451 | 4289 (void) log_sysevent(ev, SE_SLEEP, &eid); |
4290 | |
4291 done: | |
4292 if (attr) | |
4293 sysevent_free_attr(attr); | |
4294 sysevent_free(ev); | |
4295 #endif | |
4296 } |