Mercurial > illumos > illumos-gate
annotate usr/src/uts/common/fs/zfs/spa.c @ 4627:c85631613c19
6509812 it would be useful if zdb(1M) could run on exported pools
author | ck153898 |
---|---|
date | Tue, 10 Jul 2007 11:43:52 -0700 |
parents | ed36b0e652bc |
children | e8d212dda064 |
rev | line source |
---|---|
789 | 1 /* |
2 * CDDL HEADER START | |
3 * | |
4 * The contents of this file are subject to the terms of the | |
1544 | 5 * Common Development and Distribution License (the "License"). |
6 * You may not use this file except in compliance with the License. | |
789 | 7 * |
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 * or http://www.opensolaris.org/os/licensing. | |
10 * See the License for the specific language governing permissions | |
11 * and limitations under the License. | |
12 * | |
13 * When distributing Covered Code, include this CDDL HEADER in each | |
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 * If applicable, add the following below this CDDL HEADER, with the | |
16 * fields enclosed by brackets "[]" replaced with your own identifying | |
17 * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 * | |
19 * CDDL HEADER END | |
20 */ | |
2082 | 21 |
789 | 22 /* |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. |
789 | 24 * Use is subject to license terms. |
25 */ | |
26 | |
27 #pragma ident "%Z%%M% %I% %E% SMI" | |
28 | |
29 /* | |
30 * This file contains all the routines used when modifying on-disk SPA state. | |
31 * This includes opening, importing, destroying, exporting a pool, and syncing a | |
32 * pool. | |
33 */ | |
34 | |
35 #include <sys/zfs_context.h> | |
1544 | 36 #include <sys/fm/fs/zfs.h> |
789 | 37 #include <sys/spa_impl.h> |
38 #include <sys/zio.h> | |
39 #include <sys/zio_checksum.h> | |
40 #include <sys/zio_compress.h> | |
41 #include <sys/dmu.h> | |
42 #include <sys/dmu_tx.h> | |
43 #include <sys/zap.h> | |
44 #include <sys/zil.h> | |
45 #include <sys/vdev_impl.h> | |
46 #include <sys/metaslab.h> | |
47 #include <sys/uberblock_impl.h> | |
48 #include <sys/txg.h> | |
49 #include <sys/avl.h> | |
50 #include <sys/dmu_traverse.h> | |
3912 | 51 #include <sys/dmu_objset.h> |
789 | 52 #include <sys/unique.h> |
53 #include <sys/dsl_pool.h> | |
3912 | 54 #include <sys/dsl_dataset.h> |
789 | 55 #include <sys/dsl_dir.h> |
56 #include <sys/dsl_prop.h> | |
3912 | 57 #include <sys/dsl_synctask.h> |
789 | 58 #include <sys/fs/zfs.h> |
59 #include <sys/callb.h> | |
3975
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
60 #include <sys/systeminfo.h> |
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
61 #include <sys/sunddi.h> |
789 | 62 |
2986 | 63 int zio_taskq_threads = 8; |
64 | |
789 | 65 /* |
66 * ========================================================================== | |
67 * SPA state manipulation (open/create/destroy/import/export) | |
68 * ========================================================================== | |
69 */ | |
70 | |
1544 | 71 static int |
72 spa_error_entry_compare(const void *a, const void *b) | |
73 { | |
74 spa_error_entry_t *sa = (spa_error_entry_t *)a; | |
75 spa_error_entry_t *sb = (spa_error_entry_t *)b; | |
76 int ret; | |
77 | |
78 ret = bcmp(&sa->se_bookmark, &sb->se_bookmark, | |
79 sizeof (zbookmark_t)); | |
80 | |
81 if (ret < 0) | |
82 return (-1); | |
83 else if (ret > 0) | |
84 return (1); | |
85 else | |
86 return (0); | |
87 } | |
88 | |
89 /* | |
90 * Utility function which retrieves copies of the current logs and | |
91 * re-initializes them in the process. | |
92 */ | |
93 void | |
94 spa_get_errlists(spa_t *spa, avl_tree_t *last, avl_tree_t *scrub) | |
95 { | |
96 ASSERT(MUTEX_HELD(&spa->spa_errlist_lock)); | |
97 | |
98 bcopy(&spa->spa_errlist_last, last, sizeof (avl_tree_t)); | |
99 bcopy(&spa->spa_errlist_scrub, scrub, sizeof (avl_tree_t)); | |
100 | |
101 avl_create(&spa->spa_errlist_scrub, | |
102 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
103 offsetof(spa_error_entry_t, se_avl)); | |
104 avl_create(&spa->spa_errlist_last, | |
105 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
106 offsetof(spa_error_entry_t, se_avl)); | |
107 } | |
108 | |
789 | 109 /* |
110 * Activate an uninitialized pool. | |
111 */ | |
112 static void | |
113 spa_activate(spa_t *spa) | |
114 { | |
115 int t; | |
116 | |
117 ASSERT(spa->spa_state == POOL_STATE_UNINITIALIZED); | |
118 | |
119 spa->spa_state = POOL_STATE_ACTIVE; | |
120 | |
121 spa->spa_normal_class = metaslab_class_create(); | |
4527 | 122 spa->spa_log_class = metaslab_class_create(); |
789 | 123 |
124 for (t = 0; t < ZIO_TYPES; t++) { | |
125 spa->spa_zio_issue_taskq[t] = taskq_create("spa_zio_issue", | |
2986 | 126 zio_taskq_threads, maxclsyspri, 50, INT_MAX, |
789 | 127 TASKQ_PREPOPULATE); |
128 spa->spa_zio_intr_taskq[t] = taskq_create("spa_zio_intr", | |
2986 | 129 zio_taskq_threads, maxclsyspri, 50, INT_MAX, |
789 | 130 TASKQ_PREPOPULATE); |
131 } | |
132 | |
133 rw_init(&spa->spa_traverse_lock, NULL, RW_DEFAULT, NULL); | |
134 | |
2856 | 135 mutex_init(&spa->spa_async_lock, NULL, MUTEX_DEFAULT, NULL); |
136 mutex_init(&spa->spa_config_cache_lock, NULL, MUTEX_DEFAULT, NULL); | |
137 mutex_init(&spa->spa_scrub_lock, NULL, MUTEX_DEFAULT, NULL); | |
138 mutex_init(&spa->spa_errlog_lock, NULL, MUTEX_DEFAULT, NULL); | |
139 mutex_init(&spa->spa_errlist_lock, NULL, MUTEX_DEFAULT, NULL); | |
140 mutex_init(&spa->spa_config_lock.scl_lock, NULL, MUTEX_DEFAULT, NULL); | |
141 mutex_init(&spa->spa_sync_bplist.bpl_lock, NULL, MUTEX_DEFAULT, NULL); | |
2926 | 142 mutex_init(&spa->spa_history_lock, NULL, MUTEX_DEFAULT, NULL); |
3912 | 143 mutex_init(&spa->spa_props_lock, NULL, MUTEX_DEFAULT, NULL); |
2856 | 144 |
789 | 145 list_create(&spa->spa_dirty_list, sizeof (vdev_t), |
146 offsetof(vdev_t, vdev_dirty_node)); | |
147 | |
148 txg_list_create(&spa->spa_vdev_txg_list, | |
149 offsetof(struct vdev, vdev_txg_node)); | |
1544 | 150 |
151 avl_create(&spa->spa_errlist_scrub, | |
152 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
153 offsetof(spa_error_entry_t, se_avl)); | |
154 avl_create(&spa->spa_errlist_last, | |
155 spa_error_entry_compare, sizeof (spa_error_entry_t), | |
156 offsetof(spa_error_entry_t, se_avl)); | |
789 | 157 } |
158 | |
159 /* | |
160 * Opposite of spa_activate(). | |
161 */ | |
162 static void | |
163 spa_deactivate(spa_t *spa) | |
164 { | |
165 int t; | |
166 | |
167 ASSERT(spa->spa_sync_on == B_FALSE); | |
168 ASSERT(spa->spa_dsl_pool == NULL); | |
169 ASSERT(spa->spa_root_vdev == NULL); | |
170 | |
171 ASSERT(spa->spa_state != POOL_STATE_UNINITIALIZED); | |
172 | |
173 txg_list_destroy(&spa->spa_vdev_txg_list); | |
174 | |
175 list_destroy(&spa->spa_dirty_list); | |
176 | |
177 rw_destroy(&spa->spa_traverse_lock); | |
178 | |
179 for (t = 0; t < ZIO_TYPES; t++) { | |
180 taskq_destroy(spa->spa_zio_issue_taskq[t]); | |
181 taskq_destroy(spa->spa_zio_intr_taskq[t]); | |
182 spa->spa_zio_issue_taskq[t] = NULL; | |
183 spa->spa_zio_intr_taskq[t] = NULL; | |
184 } | |
185 | |
186 metaslab_class_destroy(spa->spa_normal_class); | |
187 spa->spa_normal_class = NULL; | |
188 | |
4527 | 189 metaslab_class_destroy(spa->spa_log_class); |
190 spa->spa_log_class = NULL; | |
191 | |
1544 | 192 /* |
193 * If this was part of an import or the open otherwise failed, we may | |
194 * still have errors left in the queues. Empty them just in case. | |
195 */ | |
196 spa_errlog_drain(spa); | |
197 | |
198 avl_destroy(&spa->spa_errlist_scrub); | |
199 avl_destroy(&spa->spa_errlist_last); | |
200 | |
789 | 201 spa->spa_state = POOL_STATE_UNINITIALIZED; |
202 } | |
203 | |
204 /* | |
205 * Verify a pool configuration, and construct the vdev tree appropriately. This | |
206 * will create all the necessary vdevs in the appropriate layout, with each vdev | |
207 * in the CLOSED state. This will prep the pool before open/creation/import. | |
208 * All vdev validation is done by the vdev_alloc() routine. | |
209 */ | |
2082 | 210 static int |
211 spa_config_parse(spa_t *spa, vdev_t **vdp, nvlist_t *nv, vdev_t *parent, | |
212 uint_t id, int atype) | |
789 | 213 { |
214 nvlist_t **child; | |
215 uint_t c, children; | |
2082 | 216 int error; |
217 | |
218 if ((error = vdev_alloc(spa, vdp, nv, parent, id, atype)) != 0) | |
219 return (error); | |
220 | |
221 if ((*vdp)->vdev_ops->vdev_op_leaf) | |
222 return (0); | |
789 | 223 |
224 if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, | |
225 &child, &children) != 0) { | |
2082 | 226 vdev_free(*vdp); |
227 *vdp = NULL; | |
228 return (EINVAL); | |
789 | 229 } |
230 | |
231 for (c = 0; c < children; c++) { | |
2082 | 232 vdev_t *vd; |
233 if ((error = spa_config_parse(spa, &vd, child[c], *vdp, c, | |
234 atype)) != 0) { | |
235 vdev_free(*vdp); | |
236 *vdp = NULL; | |
237 return (error); | |
789 | 238 } |
239 } | |
240 | |
2082 | 241 ASSERT(*vdp != NULL); |
242 | |
243 return (0); | |
789 | 244 } |
245 | |
246 /* | |
247 * Opposite of spa_load(). | |
248 */ | |
249 static void | |
250 spa_unload(spa_t *spa) | |
251 { | |
2082 | 252 int i; |
253 | |
789 | 254 /* |
1544 | 255 * Stop async tasks. |
256 */ | |
257 spa_async_suspend(spa); | |
258 | |
259 /* | |
789 | 260 * Stop syncing. |
261 */ | |
262 if (spa->spa_sync_on) { | |
263 txg_sync_stop(spa->spa_dsl_pool); | |
264 spa->spa_sync_on = B_FALSE; | |
265 } | |
266 | |
267 /* | |
268 * Wait for any outstanding prefetch I/O to complete. | |
269 */ | |
1544 | 270 spa_config_enter(spa, RW_WRITER, FTAG); |
271 spa_config_exit(spa, FTAG); | |
789 | 272 |
273 /* | |
274 * Close the dsl pool. | |
275 */ | |
276 if (spa->spa_dsl_pool) { | |
277 dsl_pool_close(spa->spa_dsl_pool); | |
278 spa->spa_dsl_pool = NULL; | |
279 } | |
280 | |
281 /* | |
282 * Close all vdevs. | |
283 */ | |
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
284 if (spa->spa_root_vdev) |
789 | 285 vdev_free(spa->spa_root_vdev); |
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
286 ASSERT(spa->spa_root_vdev == NULL); |
1544 | 287 |
2082 | 288 for (i = 0; i < spa->spa_nspares; i++) |
289 vdev_free(spa->spa_spares[i]); | |
290 if (spa->spa_spares) { | |
291 kmem_free(spa->spa_spares, spa->spa_nspares * sizeof (void *)); | |
292 spa->spa_spares = NULL; | |
293 } | |
294 if (spa->spa_sparelist) { | |
295 nvlist_free(spa->spa_sparelist); | |
296 spa->spa_sparelist = NULL; | |
297 } | |
298 | |
1544 | 299 spa->spa_async_suspended = 0; |
789 | 300 } |
301 | |
302 /* | |
2082 | 303 * Load (or re-load) the current list of vdevs describing the active spares for |
304 * this pool. When this is called, we have some form of basic information in | |
305 * 'spa_sparelist'. We parse this into vdevs, try to open them, and then | |
306 * re-generate a more complete list including status information. | |
307 */ | |
308 static void | |
309 spa_load_spares(spa_t *spa) | |
310 { | |
311 nvlist_t **spares; | |
312 uint_t nspares; | |
313 int i; | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
314 vdev_t *vd, *tvd; |
2082 | 315 |
316 /* | |
317 * First, close and free any existing spare vdevs. | |
318 */ | |
319 for (i = 0; i < spa->spa_nspares; i++) { | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
320 vd = spa->spa_spares[i]; |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
321 |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
322 /* Undo the call to spa_activate() below */ |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
323 if ((tvd = spa_lookup_by_guid(spa, vd->vdev_guid)) != NULL && |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
324 tvd->vdev_isspare) |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
325 spa_spare_remove(tvd); |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
326 vdev_close(vd); |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
327 vdev_free(vd); |
2082 | 328 } |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
329 |
2082 | 330 if (spa->spa_spares) |
331 kmem_free(spa->spa_spares, spa->spa_nspares * sizeof (void *)); | |
332 | |
333 if (spa->spa_sparelist == NULL) | |
334 nspares = 0; | |
335 else | |
336 VERIFY(nvlist_lookup_nvlist_array(spa->spa_sparelist, | |
337 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); | |
338 | |
339 spa->spa_nspares = (int)nspares; | |
340 spa->spa_spares = NULL; | |
341 | |
342 if (nspares == 0) | |
343 return; | |
344 | |
345 /* | |
346 * Construct the array of vdevs, opening them to get status in the | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
347 * process. For each spare, there is potentially two different vdev_t |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
348 * structures associated with it: one in the list of spares (used only |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
349 * for basic validation purposes) and one in the active vdev |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
350 * configuration (if it's spared in). During this phase we open and |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
351 * validate each vdev on the spare list. If the vdev also exists in the |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
352 * active configuration, then we also mark this vdev as an active spare. |
2082 | 353 */ |
354 spa->spa_spares = kmem_alloc(nspares * sizeof (void *), KM_SLEEP); | |
355 for (i = 0; i < spa->spa_nspares; i++) { | |
356 VERIFY(spa_config_parse(spa, &vd, spares[i], NULL, 0, | |
357 VDEV_ALLOC_SPARE) == 0); | |
358 ASSERT(vd != NULL); | |
359 | |
360 spa->spa_spares[i] = vd; | |
361 | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
362 if ((tvd = spa_lookup_by_guid(spa, vd->vdev_guid)) != NULL) { |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
363 if (!tvd->vdev_isspare) |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
364 spa_spare_add(tvd); |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
365 |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
366 /* |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
367 * We only mark the spare active if we were successfully |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
368 * able to load the vdev. Otherwise, importing a pool |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
369 * with a bad active spare would result in strange |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
370 * behavior, because multiple pool would think the spare |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
371 * is actively in use. |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
372 * |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
373 * There is a vulnerability here to an equally bizarre |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
374 * circumstance, where a dead active spare is later |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
375 * brought back to life (onlined or otherwise). Given |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
376 * the rarity of this scenario, and the extra complexity |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
377 * it adds, we ignore the possibility. |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
378 */ |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
379 if (!vdev_is_dead(tvd)) |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
380 spa_spare_activate(tvd); |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
381 } |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
382 |
2082 | 383 if (vdev_open(vd) != 0) |
384 continue; | |
385 | |
386 vd->vdev_top = vd; | |
387 (void) vdev_validate_spare(vd); | |
388 } | |
389 | |
390 /* | |
391 * Recompute the stashed list of spares, with status information | |
392 * this time. | |
393 */ | |
394 VERIFY(nvlist_remove(spa->spa_sparelist, ZPOOL_CONFIG_SPARES, | |
395 DATA_TYPE_NVLIST_ARRAY) == 0); | |
396 | |
397 spares = kmem_alloc(spa->spa_nspares * sizeof (void *), KM_SLEEP); | |
398 for (i = 0; i < spa->spa_nspares; i++) | |
399 spares[i] = vdev_config_generate(spa, spa->spa_spares[i], | |
400 B_TRUE, B_TRUE); | |
401 VERIFY(nvlist_add_nvlist_array(spa->spa_sparelist, ZPOOL_CONFIG_SPARES, | |
402 spares, spa->spa_nspares) == 0); | |
403 for (i = 0; i < spa->spa_nspares; i++) | |
404 nvlist_free(spares[i]); | |
405 kmem_free(spares, spa->spa_nspares * sizeof (void *)); | |
406 } | |
407 | |
408 static int | |
409 load_nvlist(spa_t *spa, uint64_t obj, nvlist_t **value) | |
410 { | |
411 dmu_buf_t *db; | |
412 char *packed = NULL; | |
413 size_t nvsize = 0; | |
414 int error; | |
415 *value = NULL; | |
416 | |
417 VERIFY(0 == dmu_bonus_hold(spa->spa_meta_objset, obj, FTAG, &db)); | |
418 nvsize = *(uint64_t *)db->db_data; | |
419 dmu_buf_rele(db, FTAG); | |
420 | |
421 packed = kmem_alloc(nvsize, KM_SLEEP); | |
422 error = dmu_read(spa->spa_meta_objset, obj, 0, nvsize, packed); | |
423 if (error == 0) | |
424 error = nvlist_unpack(packed, nvsize, value, 0); | |
425 kmem_free(packed, nvsize); | |
426 | |
427 return (error); | |
428 } | |
429 | |
430 /* | |
4451 | 431 * Checks to see if the given vdev could not be opened, in which case we post a |
432 * sysevent to notify the autoreplace code that the device has been removed. | |
433 */ | |
434 static void | |
435 spa_check_removed(vdev_t *vd) | |
436 { | |
437 int c; | |
438 | |
439 for (c = 0; c < vd->vdev_children; c++) | |
440 spa_check_removed(vd->vdev_child[c]); | |
441 | |
442 if (vd->vdev_ops->vdev_op_leaf && vdev_is_dead(vd)) { | |
443 zfs_post_autoreplace(vd->vdev_spa, vd); | |
444 spa_event_notify(vd->vdev_spa, vd, ESC_ZFS_VDEV_CHECK); | |
445 } | |
446 } | |
447 | |
448 /* | |
789 | 449 * Load an existing storage pool, using the pool's builtin spa_config as a |
1544 | 450 * source of configuration information. |
789 | 451 */ |
452 static int | |
1544 | 453 spa_load(spa_t *spa, nvlist_t *config, spa_load_state_t state, int mosconfig) |
789 | 454 { |
455 int error = 0; | |
456 nvlist_t *nvroot = NULL; | |
457 vdev_t *rvd; | |
458 uberblock_t *ub = &spa->spa_uberblock; | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
459 uint64_t config_cache_txg = spa->spa_config_txg; |
789 | 460 uint64_t pool_guid; |
2082 | 461 uint64_t version; |
789 | 462 zio_t *zio; |
4451 | 463 uint64_t autoreplace = 0; |
789 | 464 |
1544 | 465 spa->spa_load_state = state; |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
466 |
789 | 467 if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvroot) || |
1733 | 468 nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &pool_guid)) { |
1544 | 469 error = EINVAL; |
470 goto out; | |
471 } | |
789 | 472 |
2082 | 473 /* |
474 * Versioning wasn't explicitly added to the label until later, so if | |
475 * it's not present treat it as the initial version. | |
476 */ | |
477 if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION, &version) != 0) | |
4577 | 478 version = SPA_VERSION_INITIAL; |
2082 | 479 |
1733 | 480 (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG, |
481 &spa->spa_config_txg); | |
482 | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
483 if ((state == SPA_LOAD_IMPORT || state == SPA_LOAD_TRYIMPORT) && |
1544 | 484 spa_guid_exists(pool_guid, 0)) { |
485 error = EEXIST; | |
486 goto out; | |
487 } | |
789 | 488 |
2174
73de7a781492
6433717 offline devices should not be marked persistently unavailble
eschrock
parents:
2082
diff
changeset
|
489 spa->spa_load_guid = pool_guid; |
73de7a781492
6433717 offline devices should not be marked persistently unavailble
eschrock
parents:
2082
diff
changeset
|
490 |
789 | 491 /* |
2082 | 492 * Parse the configuration into a vdev tree. We explicitly set the |
493 * value that will be returned by spa_version() since parsing the | |
494 * configuration requires knowing the version number. | |
789 | 495 */ |
1544 | 496 spa_config_enter(spa, RW_WRITER, FTAG); |
2082 | 497 spa->spa_ubsync.ub_version = version; |
498 error = spa_config_parse(spa, &rvd, nvroot, NULL, 0, VDEV_ALLOC_LOAD); | |
1544 | 499 spa_config_exit(spa, FTAG); |
789 | 500 |
2082 | 501 if (error != 0) |
1544 | 502 goto out; |
789 | 503 |
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
504 ASSERT(spa->spa_root_vdev == rvd); |
789 | 505 ASSERT(spa_guid(spa) == pool_guid); |
506 | |
507 /* | |
508 * Try to open all vdevs, loading each label in the process. | |
509 */ | |
4070
4390ea390a1e
6386594 zdb message should be clearer when failing for lack of permissions
mc142369
parents:
3975
diff
changeset
|
510 error = vdev_open(rvd); |
4390ea390a1e
6386594 zdb message should be clearer when failing for lack of permissions
mc142369
parents:
3975
diff
changeset
|
511 if (error != 0) |
1544 | 512 goto out; |
789 | 513 |
514 /* | |
1986
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
515 * Validate the labels for all leaf vdevs. We need to grab the config |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
516 * lock because all label I/O is done with the ZIO_FLAG_CONFIG_HELD |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
517 * flag. |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
518 */ |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
519 spa_config_enter(spa, RW_READER, FTAG); |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
520 error = vdev_validate(rvd); |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
521 spa_config_exit(spa, FTAG); |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
522 |
4070
4390ea390a1e
6386594 zdb message should be clearer when failing for lack of permissions
mc142369
parents:
3975
diff
changeset
|
523 if (error != 0) |
1986
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
524 goto out; |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
525 |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
526 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
|
527 error = ENXIO; |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
528 goto out; |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
529 } |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
530 |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
531 /* |
789 | 532 * Find the best uberblock. |
533 */ | |
534 bzero(ub, sizeof (uberblock_t)); | |
535 | |
536 zio = zio_root(spa, NULL, NULL, | |
537 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE); | |
538 vdev_uberblock_load(zio, rvd, ub); | |
539 error = zio_wait(zio); | |
540 | |
541 /* | |
542 * If we weren't able to find a single valid uberblock, return failure. | |
543 */ | |
544 if (ub->ub_txg == 0) { | |
1760 | 545 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
546 VDEV_AUX_CORRUPT_DATA); | |
1544 | 547 error = ENXIO; |
548 goto out; | |
549 } | |
550 | |
551 /* | |
552 * If the pool is newer than the code, we can't open it. | |
553 */ | |
4577 | 554 if (ub->ub_version > SPA_VERSION) { |
1760 | 555 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
556 VDEV_AUX_VERSION_NEWER); | |
1544 | 557 error = ENOTSUP; |
558 goto out; | |
789 | 559 } |
560 | |
561 /* | |
562 * If the vdev guid sum doesn't match the uberblock, we have an | |
563 * incomplete configuration. | |
564 */ | |
1732 | 565 if (rvd->vdev_guid_sum != ub->ub_guid_sum && mosconfig) { |
1544 | 566 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
567 VDEV_AUX_BAD_GUID_SUM); | |
568 error = ENXIO; | |
569 goto out; | |
789 | 570 } |
571 | |
572 /* | |
573 * Initialize internal SPA structures. | |
574 */ | |
575 spa->spa_state = POOL_STATE_ACTIVE; | |
576 spa->spa_ubsync = spa->spa_uberblock; | |
577 spa->spa_first_txg = spa_last_synced_txg(spa) + 1; | |
1544 | 578 error = dsl_pool_open(spa, spa->spa_first_txg, &spa->spa_dsl_pool); |
579 if (error) { | |
580 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
581 VDEV_AUX_CORRUPT_DATA); | |
582 goto out; | |
583 } | |
789 | 584 spa->spa_meta_objset = spa->spa_dsl_pool->dp_meta_objset; |
585 | |
1544 | 586 if (zap_lookup(spa->spa_meta_objset, |
789 | 587 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CONFIG, |
1544 | 588 sizeof (uint64_t), 1, &spa->spa_config_object) != 0) { |
589 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
590 VDEV_AUX_CORRUPT_DATA); | |
591 error = EIO; | |
592 goto out; | |
593 } | |
789 | 594 |
595 if (!mosconfig) { | |
2082 | 596 nvlist_t *newconfig; |
3975
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
597 uint64_t hostid; |
2082 | 598 |
599 if (load_nvlist(spa, spa->spa_config_object, &newconfig) != 0) { | |
1544 | 600 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
601 VDEV_AUX_CORRUPT_DATA); | |
602 error = EIO; | |
603 goto out; | |
604 } | |
789 | 605 |
3975
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
606 if (nvlist_lookup_uint64(newconfig, ZPOOL_CONFIG_HOSTID, |
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
607 &hostid) == 0) { |
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
608 char *hostname; |
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
609 unsigned long myhostid = 0; |
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
610 |
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
611 VERIFY(nvlist_lookup_string(newconfig, |
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
612 ZPOOL_CONFIG_HOSTNAME, &hostname) == 0); |
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
613 |
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
614 (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
|
615 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
|
616 (unsigned long)hostid != myhostid) { |
3975
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
617 cmn_err(CE_WARN, "pool '%s' could not be " |
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
618 "loaded as it was last accessed by " |
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
619 "another system (host: %s hostid: 0x%lx). " |
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
620 "See: http://www.sun.com/msg/ZFS-8000-EY", |
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
621 spa->spa_name, hostname, |
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
622 (unsigned long)hostid); |
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
623 error = EBADF; |
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
624 goto out; |
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
625 } |
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
626 } |
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
627 |
789 | 628 spa_config_set(spa, newconfig); |
629 spa_unload(spa); | |
630 spa_deactivate(spa); | |
631 spa_activate(spa); | |
632 | |
1544 | 633 return (spa_load(spa, newconfig, state, B_TRUE)); |
634 } | |
635 | |
636 if (zap_lookup(spa->spa_meta_objset, | |
637 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SYNC_BPLIST, | |
638 sizeof (uint64_t), 1, &spa->spa_sync_bplist_obj) != 0) { | |
639 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
640 VDEV_AUX_CORRUPT_DATA); | |
641 error = EIO; | |
642 goto out; | |
789 | 643 } |
644 | |
1544 | 645 /* |
2082 | 646 * Load the bit that tells us to use the new accounting function |
647 * (raid-z deflation). If we have an older pool, this will not | |
648 * be present. | |
649 */ | |
650 error = zap_lookup(spa->spa_meta_objset, | |
651 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
652 sizeof (uint64_t), 1, &spa->spa_deflate); | |
653 if (error != 0 && error != ENOENT) { | |
654 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
655 VDEV_AUX_CORRUPT_DATA); | |
656 error = EIO; | |
657 goto out; | |
658 } | |
659 | |
660 /* | |
1544 | 661 * Load the persistent error log. If we have an older pool, this will |
662 * not be present. | |
663 */ | |
664 error = zap_lookup(spa->spa_meta_objset, | |
665 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_ERRLOG_LAST, | |
666 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
|
667 if (error != 0 && error != ENOENT) { |
1544 | 668 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
669 VDEV_AUX_CORRUPT_DATA); | |
670 error = EIO; | |
671 goto out; | |
672 } | |
673 | |
674 error = zap_lookup(spa->spa_meta_objset, | |
675 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_ERRLOG_SCRUB, | |
676 sizeof (uint64_t), 1, &spa->spa_errlog_scrub); | |
677 if (error != 0 && error != ENOENT) { | |
678 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
679 VDEV_AUX_CORRUPT_DATA); | |
680 error = EIO; | |
681 goto out; | |
682 } | |
789 | 683 |
684 /* | |
2926 | 685 * Load the history object. If we have an older pool, this |
686 * will not be present. | |
687 */ | |
688 error = zap_lookup(spa->spa_meta_objset, | |
689 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_HISTORY, | |
690 sizeof (uint64_t), 1, &spa->spa_history); | |
691 if (error != 0 && error != ENOENT) { | |
692 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
693 VDEV_AUX_CORRUPT_DATA); | |
694 error = EIO; | |
695 goto out; | |
696 } | |
697 | |
698 /* | |
2082 | 699 * Load any hot spares for this pool. |
700 */ | |
701 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, | |
702 DMU_POOL_SPARES, sizeof (uint64_t), 1, &spa->spa_spares_object); | |
703 if (error != 0 && error != ENOENT) { | |
704 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
705 VDEV_AUX_CORRUPT_DATA); | |
706 error = EIO; | |
707 goto out; | |
708 } | |
709 if (error == 0) { | |
4577 | 710 ASSERT(spa_version(spa) >= SPA_VERSION_SPARES); |
2082 | 711 if (load_nvlist(spa, spa->spa_spares_object, |
712 &spa->spa_sparelist) != 0) { | |
713 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
714 VDEV_AUX_CORRUPT_DATA); | |
715 error = EIO; | |
716 goto out; | |
717 } | |
718 | |
719 spa_config_enter(spa, RW_WRITER, FTAG); | |
720 spa_load_spares(spa); | |
721 spa_config_exit(spa, FTAG); | |
722 } | |
723 | |
4543 | 724 spa->spa_delegation = zfs_prop_default_numeric(ZPOOL_PROP_DELEGATION); |
725 | |
3912 | 726 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, |
727 DMU_POOL_PROPS, sizeof (uint64_t), 1, &spa->spa_pool_props_object); | |
728 | |
729 if (error && error != ENOENT) { | |
730 vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
731 VDEV_AUX_CORRUPT_DATA); | |
732 error = EIO; | |
733 goto out; | |
734 } | |
735 | |
736 if (error == 0) { | |
737 (void) zap_lookup(spa->spa_meta_objset, | |
738 spa->spa_pool_props_object, | |
4451 | 739 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), |
3912 | 740 sizeof (uint64_t), 1, &spa->spa_bootfs); |
4451 | 741 (void) zap_lookup(spa->spa_meta_objset, |
742 spa->spa_pool_props_object, | |
743 zpool_prop_to_name(ZPOOL_PROP_AUTOREPLACE), | |
744 sizeof (uint64_t), 1, &autoreplace); | |
4543 | 745 (void) zap_lookup(spa->spa_meta_objset, |
746 spa->spa_pool_props_object, | |
747 zpool_prop_to_name(ZPOOL_PROP_DELEGATION), | |
748 sizeof (uint64_t), 1, &spa->spa_delegation); | |
3912 | 749 } |
750 | |
2082 | 751 /* |
4451 | 752 * If the 'autoreplace' property is set, then post a resource notifying |
753 * the ZFS DE that it should not issue any faults for unopenable | |
754 * devices. We also iterate over the vdevs, and post a sysevent for any | |
755 * unopenable vdevs so that the normal autoreplace handler can take | |
756 * over. | |
757 */ | |
758 if (autoreplace) | |
759 spa_check_removed(spa->spa_root_vdev); | |
760 | |
761 /* | |
1986
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
762 * Load the vdev state for all toplevel vdevs. |
789 | 763 */ |
1986
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
764 vdev_load(rvd); |
789 | 765 |
766 /* | |
767 * Propagate the leaf DTLs we just loaded all the way up the tree. | |
768 */ | |
1544 | 769 spa_config_enter(spa, RW_WRITER, FTAG); |
789 | 770 vdev_dtl_reassess(rvd, 0, 0, B_FALSE); |
1544 | 771 spa_config_exit(spa, FTAG); |
789 | 772 |
773 /* | |
774 * Check the state of the root vdev. If it can't be opened, it | |
775 * indicates one or more toplevel vdevs are faulted. | |
776 */ | |
1544 | 777 if (rvd->vdev_state <= VDEV_STATE_CANT_OPEN) { |
778 error = ENXIO; | |
779 goto out; | |
780 } | |
789 | 781 |
1544 | 782 if ((spa_mode & FWRITE) && state != SPA_LOAD_TRYIMPORT) { |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
783 dmu_tx_t *tx; |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
784 int need_update = B_FALSE; |
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
785 int c; |
1601
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
786 |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
787 /* |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
788 * Claim log blocks that haven't been committed yet. |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
789 * This must all happen in a single txg. |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
790 */ |
1601
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
791 tx = dmu_tx_create_assigned(spa_get_dsl(spa), |
789 | 792 spa_first_txg(spa)); |
2417 | 793 (void) dmu_objset_find(spa->spa_name, |
794 zil_claim, tx, DS_FIND_CHILDREN); | |
789 | 795 dmu_tx_commit(tx); |
796 | |
797 spa->spa_sync_on = B_TRUE; | |
798 txg_sync_start(spa->spa_dsl_pool); | |
799 | |
800 /* | |
801 * Wait for all claims to sync. | |
802 */ | |
803 txg_wait_synced(spa->spa_dsl_pool, 0); | |
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
804 |
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
805 /* |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
806 * If the config cache is stale, or we have uninitialized |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
807 * metaslabs (see spa_vdev_add()), then update the config. |
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
808 */ |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
809 if (config_cache_txg != spa->spa_config_txg || |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
810 state == SPA_LOAD_IMPORT) |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
811 need_update = B_TRUE; |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
812 |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
813 for (c = 0; c < rvd->vdev_children; c++) |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
814 if (rvd->vdev_child[c]->vdev_ms_array == 0) |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
815 need_update = B_TRUE; |
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
816 |
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
817 /* |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
818 * Update the config cache asychronously in case we're the |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
819 * root pool, in which case the config cache isn't writable yet. |
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
820 */ |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
821 if (need_update) |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
822 spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE); |
789 | 823 } |
824 | |
1544 | 825 error = 0; |
826 out: | |
2082 | 827 if (error && error != EBADF) |
1544 | 828 zfs_ereport_post(FM_EREPORT_ZFS_POOL, spa, NULL, NULL, 0, 0); |
829 spa->spa_load_state = SPA_LOAD_NONE; | |
830 spa->spa_ena = 0; | |
831 | |
832 return (error); | |
789 | 833 } |
834 | |
835 /* | |
836 * Pool Open/Import | |
837 * | |
838 * The import case is identical to an open except that the configuration is sent | |
839 * down from userland, instead of grabbed from the configuration cache. For the | |
840 * case of an open, the pool configuration will exist in the | |
4451 | 841 * POOL_STATE_UNINITIALIZED state. |
789 | 842 * |
843 * The stats information (gen/count/ustats) is used to gather vdev statistics at | |
844 * the same time open the pool, without having to keep around the spa_t in some | |
845 * ambiguous state. | |
846 */ | |
847 static int | |
848 spa_open_common(const char *pool, spa_t **spapp, void *tag, nvlist_t **config) | |
849 { | |
850 spa_t *spa; | |
851 int error; | |
852 int loaded = B_FALSE; | |
853 int locked = B_FALSE; | |
854 | |
855 *spapp = NULL; | |
856 | |
857 /* | |
858 * As disgusting as this is, we need to support recursive calls to this | |
859 * function because dsl_dir_open() is called during spa_load(), and ends | |
860 * up calling spa_open() again. The real fix is to figure out how to | |
861 * avoid dsl_dir_open() calling this in the first place. | |
862 */ | |
863 if (mutex_owner(&spa_namespace_lock) != curthread) { | |
864 mutex_enter(&spa_namespace_lock); | |
865 locked = B_TRUE; | |
866 } | |
867 | |
868 if ((spa = spa_lookup(pool)) == NULL) { | |
869 if (locked) | |
870 mutex_exit(&spa_namespace_lock); | |
871 return (ENOENT); | |
872 } | |
873 if (spa->spa_state == POOL_STATE_UNINITIALIZED) { | |
874 | |
875 spa_activate(spa); | |
876 | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
877 error = spa_load(spa, spa->spa_config, SPA_LOAD_OPEN, B_FALSE); |
789 | 878 |
879 if (error == EBADF) { | |
880 /* | |
1986
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
881 * If vdev_validate() returns failure (indicated by |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
882 * EBADF), it indicates that one of the vdevs indicates |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
883 * that the pool has been exported or destroyed. If |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
884 * this is the case, the config cache is out of sync and |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
885 * we should remove the pool from the namespace. |
789 | 886 */ |
2082 | 887 zfs_post_ok(spa, NULL); |
789 | 888 spa_unload(spa); |
889 spa_deactivate(spa); | |
890 spa_remove(spa); | |
891 spa_config_sync(); | |
892 if (locked) | |
893 mutex_exit(&spa_namespace_lock); | |
894 return (ENOENT); | |
1544 | 895 } |
896 | |
897 if (error) { | |
789 | 898 /* |
899 * We can't open the pool, but we still have useful | |
900 * information: the state of each vdev after the | |
901 * attempted vdev_open(). Return this to the user. | |
902 */ | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
903 if (config != NULL && spa->spa_root_vdev != NULL) { |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
904 spa_config_enter(spa, RW_READER, FTAG); |
789 | 905 *config = spa_config_generate(spa, NULL, -1ULL, |
906 B_TRUE); | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
907 spa_config_exit(spa, FTAG); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
908 } |
789 | 909 spa_unload(spa); |
910 spa_deactivate(spa); | |
1544 | 911 spa->spa_last_open_failed = B_TRUE; |
789 | 912 if (locked) |
913 mutex_exit(&spa_namespace_lock); | |
914 *spapp = NULL; | |
915 return (error); | |
1544 | 916 } else { |
917 zfs_post_ok(spa, NULL); | |
918 spa->spa_last_open_failed = B_FALSE; | |
789 | 919 } |
920 | |
921 loaded = B_TRUE; | |
922 } | |
923 | |
924 spa_open_ref(spa, tag); | |
4451 | 925 |
926 /* | |
927 * If we just loaded the pool, resilver anything that's out of date. | |
928 */ | |
929 if (loaded && (spa_mode & FWRITE)) | |
930 VERIFY(spa_scrub(spa, POOL_SCRUB_RESILVER, B_TRUE) == 0); | |
931 | |
789 | 932 if (locked) |
933 mutex_exit(&spa_namespace_lock); | |
934 | |
935 *spapp = spa; | |
936 | |
937 if (config != NULL) { | |
1544 | 938 spa_config_enter(spa, RW_READER, FTAG); |
789 | 939 *config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); |
1544 | 940 spa_config_exit(spa, FTAG); |
789 | 941 } |
942 | |
943 return (0); | |
944 } | |
945 | |
946 int | |
947 spa_open(const char *name, spa_t **spapp, void *tag) | |
948 { | |
949 return (spa_open_common(name, spapp, tag, NULL)); | |
950 } | |
951 | |
1544 | 952 /* |
953 * Lookup the given spa_t, incrementing the inject count in the process, | |
954 * preventing it from being exported or destroyed. | |
955 */ | |
956 spa_t * | |
957 spa_inject_addref(char *name) | |
958 { | |
959 spa_t *spa; | |
960 | |
961 mutex_enter(&spa_namespace_lock); | |
962 if ((spa = spa_lookup(name)) == NULL) { | |
963 mutex_exit(&spa_namespace_lock); | |
964 return (NULL); | |
965 } | |
966 spa->spa_inject_ref++; | |
967 mutex_exit(&spa_namespace_lock); | |
968 | |
969 return (spa); | |
970 } | |
971 | |
972 void | |
973 spa_inject_delref(spa_t *spa) | |
974 { | |
975 mutex_enter(&spa_namespace_lock); | |
976 spa->spa_inject_ref--; | |
977 mutex_exit(&spa_namespace_lock); | |
978 } | |
979 | |
2082 | 980 static void |
981 spa_add_spares(spa_t *spa, nvlist_t *config) | |
982 { | |
983 nvlist_t **spares; | |
984 uint_t i, nspares; | |
985 nvlist_t *nvroot; | |
986 uint64_t guid; | |
987 vdev_stat_t *vs; | |
988 uint_t vsc; | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
989 uint64_t pool; |
2082 | 990 |
991 if (spa->spa_nspares == 0) | |
992 return; | |
993 | |
994 VERIFY(nvlist_lookup_nvlist(config, | |
995 ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); | |
996 VERIFY(nvlist_lookup_nvlist_array(spa->spa_sparelist, | |
997 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); | |
998 if (nspares != 0) { | |
999 VERIFY(nvlist_add_nvlist_array(nvroot, | |
1000 ZPOOL_CONFIG_SPARES, spares, nspares) == 0); | |
1001 VERIFY(nvlist_lookup_nvlist_array(nvroot, | |
1002 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); | |
1003 | |
1004 /* | |
1005 * Go through and find any spares which have since been | |
1006 * repurposed as an active spare. If this is the case, update | |
1007 * their status appropriately. | |
1008 */ | |
1009 for (i = 0; i < nspares; i++) { | |
1010 VERIFY(nvlist_lookup_uint64(spares[i], | |
1011 ZPOOL_CONFIG_GUID, &guid) == 0); | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1012 if (spa_spare_exists(guid, &pool) && pool != 0ULL) { |
2082 | 1013 VERIFY(nvlist_lookup_uint64_array( |
1014 spares[i], ZPOOL_CONFIG_STATS, | |
1015 (uint64_t **)&vs, &vsc) == 0); | |
1016 vs->vs_state = VDEV_STATE_CANT_OPEN; | |
1017 vs->vs_aux = VDEV_AUX_SPARED; | |
1018 } | |
1019 } | |
1020 } | |
1021 } | |
1022 | |
789 | 1023 int |
1544 | 1024 spa_get_stats(const char *name, nvlist_t **config, char *altroot, size_t buflen) |
789 | 1025 { |
1026 int error; | |
1027 spa_t *spa; | |
1028 | |
1029 *config = NULL; | |
1030 error = spa_open_common(name, &spa, FTAG, config); | |
1031 | |
2082 | 1032 if (spa && *config != NULL) { |
1544 | 1033 VERIFY(nvlist_add_uint64(*config, ZPOOL_CONFIG_ERRCOUNT, |
1034 spa_get_errlog_size(spa)) == 0); | |
1035 | |
2082 | 1036 spa_add_spares(spa, *config); |
1037 } | |
1038 | |
1544 | 1039 /* |
1040 * We want to get the alternate root even for faulted pools, so we cheat | |
1041 * and call spa_lookup() directly. | |
1042 */ | |
1043 if (altroot) { | |
1044 if (spa == NULL) { | |
1045 mutex_enter(&spa_namespace_lock); | |
1046 spa = spa_lookup(name); | |
1047 if (spa) | |
1048 spa_altroot(spa, altroot, buflen); | |
1049 else | |
1050 altroot[0] = '\0'; | |
1051 spa = NULL; | |
1052 mutex_exit(&spa_namespace_lock); | |
1053 } else { | |
1054 spa_altroot(spa, altroot, buflen); | |
1055 } | |
1056 } | |
1057 | |
789 | 1058 if (spa != NULL) |
1059 spa_close(spa, FTAG); | |
1060 | |
1061 return (error); | |
1062 } | |
1063 | |
1064 /* | |
2082 | 1065 * Validate that the 'spares' array is well formed. We must have an array of |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1066 * nvlists, each which describes a valid leaf vdev. If this is an import (mode |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1067 * is VDEV_ALLOC_SPARE), then we allow corrupted spares to be specified, as long |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1068 * as they are well-formed. |
2082 | 1069 */ |
1070 static int | |
1071 spa_validate_spares(spa_t *spa, nvlist_t *nvroot, uint64_t crtxg, int mode) | |
1072 { | |
1073 nvlist_t **spares; | |
1074 uint_t i, nspares; | |
1075 vdev_t *vd; | |
1076 int error; | |
1077 | |
1078 /* | |
1079 * It's acceptable to have no spares specified. | |
1080 */ | |
1081 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
1082 &spares, &nspares) != 0) | |
1083 return (0); | |
1084 | |
1085 if (nspares == 0) | |
1086 return (EINVAL); | |
1087 | |
1088 /* | |
1089 * Make sure the pool is formatted with a version that supports hot | |
1090 * spares. | |
1091 */ | |
4577 | 1092 if (spa_version(spa) < SPA_VERSION_SPARES) |
2082 | 1093 return (ENOTSUP); |
1094 | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1095 /* |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1096 * Set the pending spare list so we correctly handle device in-use |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1097 * checking. |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1098 */ |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1099 spa->spa_pending_spares = spares; |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1100 spa->spa_pending_nspares = nspares; |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1101 |
2082 | 1102 for (i = 0; i < nspares; i++) { |
1103 if ((error = spa_config_parse(spa, &vd, spares[i], NULL, 0, | |
1104 mode)) != 0) | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1105 goto out; |
2082 | 1106 |
1107 if (!vd->vdev_ops->vdev_op_leaf) { | |
1108 vdev_free(vd); | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1109 error = EINVAL; |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1110 goto out; |
2082 | 1111 } |
1112 | |
1113 vd->vdev_top = vd; | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1114 |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1115 if ((error = vdev_open(vd)) == 0 && |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1116 (error = vdev_label_init(vd, crtxg, |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1117 VDEV_LABEL_SPARE)) == 0) { |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1118 VERIFY(nvlist_add_uint64(spares[i], ZPOOL_CONFIG_GUID, |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1119 vd->vdev_guid) == 0); |
2082 | 1120 } |
1121 | |
1122 vdev_free(vd); | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1123 |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1124 if (error && mode != VDEV_ALLOC_SPARE) |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1125 goto out; |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1126 else |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1127 error = 0; |
2082 | 1128 } |
1129 | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1130 out: |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1131 spa->spa_pending_spares = NULL; |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1132 spa->spa_pending_nspares = 0; |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1133 return (error); |
2082 | 1134 } |
1135 | |
1136 /* | |
789 | 1137 * Pool Creation |
1138 */ | |
1139 int | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1140 spa_create(const char *pool, nvlist_t *nvroot, const char *altroot) |
789 | 1141 { |
1142 spa_t *spa; | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1143 vdev_t *rvd; |
789 | 1144 dsl_pool_t *dp; |
1145 dmu_tx_t *tx; | |
2082 | 1146 int c, error = 0; |
789 | 1147 uint64_t txg = TXG_INITIAL; |
2082 | 1148 nvlist_t **spares; |
1149 uint_t nspares; | |
789 | 1150 |
1151 /* | |
1152 * If this pool already exists, return failure. | |
1153 */ | |
1154 mutex_enter(&spa_namespace_lock); | |
1155 if (spa_lookup(pool) != NULL) { | |
1156 mutex_exit(&spa_namespace_lock); | |
1157 return (EEXIST); | |
1158 } | |
1159 | |
1160 /* | |
1161 * Allocate a new spa_t structure. | |
1162 */ | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1163 spa = spa_add(pool, altroot); |
789 | 1164 spa_activate(spa); |
1165 | |
1166 spa->spa_uberblock.ub_txg = txg - 1; | |
4577 | 1167 spa->spa_uberblock.ub_version = SPA_VERSION; |
789 | 1168 spa->spa_ubsync = spa->spa_uberblock; |
1169 | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1170 /* |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1171 * Create the root vdev. |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1172 */ |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1173 spa_config_enter(spa, RW_WRITER, FTAG); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1174 |
2082 | 1175 error = spa_config_parse(spa, &rvd, nvroot, NULL, 0, VDEV_ALLOC_ADD); |
1176 | |
1177 ASSERT(error != 0 || rvd != NULL); | |
1178 ASSERT(error != 0 || spa->spa_root_vdev == rvd); | |
1179 | |
1180 if (error == 0 && rvd->vdev_children == 0) | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1181 error = EINVAL; |
2082 | 1182 |
1183 if (error == 0 && | |
1184 (error = vdev_create(rvd, txg, B_FALSE)) == 0 && | |
1185 (error = spa_validate_spares(spa, nvroot, txg, | |
1186 VDEV_ALLOC_ADD)) == 0) { | |
1187 for (c = 0; c < rvd->vdev_children; c++) | |
1188 vdev_init(rvd->vdev_child[c], txg); | |
1189 vdev_config_dirty(rvd); | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1190 } |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1191 |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1192 spa_config_exit(spa, FTAG); |
789 | 1193 |
2082 | 1194 if (error != 0) { |
789 | 1195 spa_unload(spa); |
1196 spa_deactivate(spa); | |
1197 spa_remove(spa); | |
1198 mutex_exit(&spa_namespace_lock); | |
1199 return (error); | |
1200 } | |
1201 | |
2082 | 1202 /* |
1203 * Get the list of spares, if specified. | |
1204 */ | |
1205 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
1206 &spares, &nspares) == 0) { | |
1207 VERIFY(nvlist_alloc(&spa->spa_sparelist, NV_UNIQUE_NAME, | |
1208 KM_SLEEP) == 0); | |
1209 VERIFY(nvlist_add_nvlist_array(spa->spa_sparelist, | |
1210 ZPOOL_CONFIG_SPARES, spares, nspares) == 0); | |
1211 spa_config_enter(spa, RW_WRITER, FTAG); | |
1212 spa_load_spares(spa); | |
1213 spa_config_exit(spa, FTAG); | |
1214 spa->spa_sync_spares = B_TRUE; | |
1215 } | |
1216 | |
789 | 1217 spa->spa_dsl_pool = dp = dsl_pool_create(spa, txg); |
1218 spa->spa_meta_objset = dp->dp_meta_objset; | |
1219 | |
1220 tx = dmu_tx_create_assigned(dp, txg); | |
1221 | |
1222 /* | |
1223 * Create the pool config object. | |
1224 */ | |
1225 spa->spa_config_object = dmu_object_alloc(spa->spa_meta_objset, | |
1226 DMU_OT_PACKED_NVLIST, 1 << 14, | |
1227 DMU_OT_PACKED_NVLIST_SIZE, sizeof (uint64_t), tx); | |
1228 | |
1544 | 1229 if (zap_add(spa->spa_meta_objset, |
789 | 1230 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CONFIG, |
1544 | 1231 sizeof (uint64_t), 1, &spa->spa_config_object, tx) != 0) { |
1232 cmn_err(CE_PANIC, "failed to add pool config"); | |
1233 } | |
789 | 1234 |
2082 | 1235 /* Newly created pools are always deflated. */ |
1236 spa->spa_deflate = TRUE; | |
1237 if (zap_add(spa->spa_meta_objset, | |
1238 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
1239 sizeof (uint64_t), 1, &spa->spa_deflate, tx) != 0) { | |
1240 cmn_err(CE_PANIC, "failed to add deflate"); | |
1241 } | |
1242 | |
789 | 1243 /* |
1244 * Create the deferred-free bplist object. Turn off compression | |
1245 * because sync-to-convergence takes longer if the blocksize | |
1246 * keeps changing. | |
1247 */ | |
1248 spa->spa_sync_bplist_obj = bplist_create(spa->spa_meta_objset, | |
1249 1 << 14, tx); | |
1250 dmu_object_set_compress(spa->spa_meta_objset, spa->spa_sync_bplist_obj, | |
1251 ZIO_COMPRESS_OFF, tx); | |
1252 | |
1544 | 1253 if (zap_add(spa->spa_meta_objset, |
789 | 1254 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SYNC_BPLIST, |
1544 | 1255 sizeof (uint64_t), 1, &spa->spa_sync_bplist_obj, tx) != 0) { |
1256 cmn_err(CE_PANIC, "failed to add bplist"); | |
1257 } | |
789 | 1258 |
2926 | 1259 /* |
1260 * Create the pool's history object. | |
1261 */ | |
1262 spa_history_create_obj(spa, tx); | |
1263 | |
789 | 1264 dmu_tx_commit(tx); |
1265 | |
4451 | 1266 spa->spa_bootfs = zpool_prop_default_numeric(ZPOOL_PROP_BOOTFS); |
4543 | 1267 spa->spa_delegation = zfs_prop_default_numeric(ZPOOL_PROP_DELEGATION); |
789 | 1268 spa->spa_sync_on = B_TRUE; |
1269 txg_sync_start(spa->spa_dsl_pool); | |
1270 | |
1271 /* | |
1272 * We explicitly wait for the first transaction to complete so that our | |
1273 * bean counters are appropriately updated. | |
1274 */ | |
1275 txg_wait_synced(spa->spa_dsl_pool, txg); | |
1276 | |
1277 spa_config_sync(); | |
1278 | |
1279 mutex_exit(&spa_namespace_lock); | |
1280 | |
1281 return (0); | |
1282 } | |
1283 | |
1284 /* | |
1285 * Import the given pool into the system. We set up the necessary spa_t and | |
1286 * then call spa_load() to do the dirty work. | |
1287 */ | |
1288 int | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1289 spa_import(const char *pool, nvlist_t *config, const char *altroot) |
789 | 1290 { |
1291 spa_t *spa; | |
1292 int error; | |
2082 | 1293 nvlist_t *nvroot; |
1294 nvlist_t **spares; | |
1295 uint_t nspares; | |
789 | 1296 |
1297 /* | |
1298 * If a pool with this name exists, return failure. | |
1299 */ | |
1300 mutex_enter(&spa_namespace_lock); | |
1301 if (spa_lookup(pool) != NULL) { | |
1302 mutex_exit(&spa_namespace_lock); | |
1303 return (EEXIST); | |
1304 } | |
1305 | |
1306 /* | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1307 * Create and initialize the spa structure. |
789 | 1308 */ |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1309 spa = spa_add(pool, altroot); |
789 | 1310 spa_activate(spa); |
1311 | |
1312 /* | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1313 * Pass off the heavy lifting to spa_load(). |
1732 | 1314 * Pass TRUE for mosconfig because the user-supplied config |
1315 * is actually the one to trust when doing an import. | |
1601
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
1316 */ |
1732 | 1317 error = spa_load(spa, config, SPA_LOAD_IMPORT, B_TRUE); |
789 | 1318 |
2082 | 1319 spa_config_enter(spa, RW_WRITER, FTAG); |
1320 /* | |
1321 * Toss any existing sparelist, as it doesn't have any validity anymore, | |
1322 * and conflicts with spa_has_spare(). | |
1323 */ | |
1324 if (spa->spa_sparelist) { | |
1325 nvlist_free(spa->spa_sparelist); | |
1326 spa->spa_sparelist = NULL; | |
1327 spa_load_spares(spa); | |
1328 } | |
1329 | |
1330 VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, | |
1331 &nvroot) == 0); | |
1332 if (error == 0) | |
1333 error = spa_validate_spares(spa, nvroot, -1ULL, | |
1334 VDEV_ALLOC_SPARE); | |
1335 spa_config_exit(spa, FTAG); | |
1336 | |
1337 if (error != 0) { | |
789 | 1338 spa_unload(spa); |
1339 spa_deactivate(spa); | |
1340 spa_remove(spa); | |
1341 mutex_exit(&spa_namespace_lock); | |
1342 return (error); | |
1343 } | |
1344 | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1345 /* |
2082 | 1346 * Override any spares as specified by the user, as these may have |
1347 * correct device names/devids, etc. | |
1348 */ | |
1349 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
1350 &spares, &nspares) == 0) { | |
1351 if (spa->spa_sparelist) | |
1352 VERIFY(nvlist_remove(spa->spa_sparelist, | |
1353 ZPOOL_CONFIG_SPARES, DATA_TYPE_NVLIST_ARRAY) == 0); | |
1354 else | |
1355 VERIFY(nvlist_alloc(&spa->spa_sparelist, | |
1356 NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
1357 VERIFY(nvlist_add_nvlist_array(spa->spa_sparelist, | |
1358 ZPOOL_CONFIG_SPARES, spares, nspares) == 0); | |
1359 spa_config_enter(spa, RW_WRITER, FTAG); | |
1360 spa_load_spares(spa); | |
1361 spa_config_exit(spa, FTAG); | |
1362 spa->spa_sync_spares = B_TRUE; | |
1363 } | |
1364 | |
1365 /* | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1366 * Update the config cache to include the newly-imported pool. |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1367 */ |
4627
c85631613c19
6509812 it would be useful if zdb(1M) could run on exported pools
ck153898
parents:
4577
diff
changeset
|
1368 if (spa_mode & FWRITE) |
c85631613c19
6509812 it would be useful if zdb(1M) could run on exported pools
ck153898
parents:
4577
diff
changeset
|
1369 spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1370 |
789 | 1371 /* |
1372 * Resilver anything that's out of date. | |
1373 */ | |
1374 if (spa_mode & FWRITE) | |
1375 VERIFY(spa_scrub(spa, POOL_SCRUB_RESILVER, B_TRUE) == 0); | |
1376 | |
4451 | 1377 mutex_exit(&spa_namespace_lock); |
1378 | |
789 | 1379 return (0); |
1380 } | |
1381 | |
1382 /* | |
1383 * This (illegal) pool name is used when temporarily importing a spa_t in order | |
1384 * to get the vdev stats associated with the imported devices. | |
1385 */ | |
1386 #define TRYIMPORT_NAME "$import" | |
1387 | |
1388 nvlist_t * | |
1389 spa_tryimport(nvlist_t *tryconfig) | |
1390 { | |
1391 nvlist_t *config = NULL; | |
1392 char *poolname; | |
1393 spa_t *spa; | |
1394 uint64_t state; | |
1395 | |
1396 if (nvlist_lookup_string(tryconfig, ZPOOL_CONFIG_POOL_NAME, &poolname)) | |
1397 return (NULL); | |
1398 | |
1399 if (nvlist_lookup_uint64(tryconfig, ZPOOL_CONFIG_POOL_STATE, &state)) | |
1400 return (NULL); | |
1401 | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1402 /* |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1403 * Create and initialize the spa structure. |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1404 */ |
789 | 1405 mutex_enter(&spa_namespace_lock); |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1406 spa = spa_add(TRYIMPORT_NAME, NULL); |
789 | 1407 spa_activate(spa); |
1408 | |
1409 /* | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1410 * Pass off the heavy lifting to spa_load(). |
1732 | 1411 * Pass TRUE for mosconfig because the user-supplied config |
1412 * is actually the one to trust when doing an import. | |
789 | 1413 */ |
1732 | 1414 (void) spa_load(spa, tryconfig, SPA_LOAD_TRYIMPORT, B_TRUE); |
789 | 1415 |
1416 /* | |
1417 * If 'tryconfig' was at least parsable, return the current config. | |
1418 */ | |
1419 if (spa->spa_root_vdev != NULL) { | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1420 spa_config_enter(spa, RW_READER, FTAG); |
789 | 1421 config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1422 spa_config_exit(spa, FTAG); |
789 | 1423 VERIFY(nvlist_add_string(config, ZPOOL_CONFIG_POOL_NAME, |
1424 poolname) == 0); | |
1425 VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_POOL_STATE, | |
1426 state) == 0); | |
3975
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1427 VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_TIMESTAMP, |
6674f5d79069
6282725 hostname/hostid should be stored in the label
ek110237
parents:
3912
diff
changeset
|
1428 spa->spa_uberblock.ub_timestamp) == 0); |
2082 | 1429 |
1430 /* | |
1431 * Add the list of hot spares. | |
1432 */ | |
1433 spa_add_spares(spa, config); | |
789 | 1434 } |
1435 | |
1436 spa_unload(spa); | |
1437 spa_deactivate(spa); | |
1438 spa_remove(spa); | |
1439 mutex_exit(&spa_namespace_lock); | |
1440 | |
1441 return (config); | |
1442 } | |
1443 | |
1444 /* | |
1445 * Pool export/destroy | |
1446 * | |
1447 * The act of destroying or exporting a pool is very simple. We make sure there | |
1448 * is no more pending I/O and any references to the pool are gone. Then, we | |
1449 * update the pool state and sync all the labels to disk, removing the | |
1450 * configuration from the cache afterwards. | |
1451 */ | |
1452 static int | |
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
1453 spa_export_common(char *pool, int new_state, nvlist_t **oldconfig) |
789 | 1454 { |
1455 spa_t *spa; | |
1456 | |
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
1457 if (oldconfig) |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
1458 *oldconfig = NULL; |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
1459 |
789 | 1460 if (!(spa_mode & FWRITE)) |
1461 return (EROFS); | |
1462 | |
1463 mutex_enter(&spa_namespace_lock); | |
1464 if ((spa = spa_lookup(pool)) == NULL) { | |
1465 mutex_exit(&spa_namespace_lock); | |
1466 return (ENOENT); | |
1467 } | |
1468 | |
1469 /* | |
1544 | 1470 * Put a hold on the pool, drop the namespace lock, stop async tasks, |
1471 * reacquire the namespace lock, and see if we can export. | |
1472 */ | |
1473 spa_open_ref(spa, FTAG); | |
1474 mutex_exit(&spa_namespace_lock); | |
1475 spa_async_suspend(spa); | |
1476 mutex_enter(&spa_namespace_lock); | |
1477 spa_close(spa, FTAG); | |
1478 | |
1479 /* | |
789 | 1480 * The pool will be in core if it's openable, |
1481 * in which case we can modify its state. | |
1482 */ | |
1483 if (spa->spa_state != POOL_STATE_UNINITIALIZED && spa->spa_sync_on) { | |
1484 /* | |
1485 * Objsets may be open only because they're dirty, so we | |
1486 * have to force it to sync before checking spa_refcnt. | |
1487 */ | |
1488 spa_scrub_suspend(spa); | |
1489 txg_wait_synced(spa->spa_dsl_pool, 0); | |
1490 | |
1544 | 1491 /* |
1492 * A pool cannot be exported or destroyed if there are active | |
1493 * references. If we are resetting a pool, allow references by | |
1494 * fault injection handlers. | |
1495 */ | |
1496 if (!spa_refcount_zero(spa) || | |
1497 (spa->spa_inject_ref != 0 && | |
1498 new_state != POOL_STATE_UNINITIALIZED)) { | |
789 | 1499 spa_scrub_resume(spa); |
1544 | 1500 spa_async_resume(spa); |
789 | 1501 mutex_exit(&spa_namespace_lock); |
1502 return (EBUSY); | |
1503 } | |
1504 | |
1505 spa_scrub_resume(spa); | |
1506 VERIFY(spa_scrub(spa, POOL_SCRUB_NONE, B_TRUE) == 0); | |
1507 | |
1508 /* | |
1509 * We want this to be reflected on every label, | |
1510 * so mark them all dirty. spa_unload() will do the | |
1511 * final sync that pushes these changes out. | |
1512 */ | |
1544 | 1513 if (new_state != POOL_STATE_UNINITIALIZED) { |
1601
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
1514 spa_config_enter(spa, RW_WRITER, FTAG); |
1544 | 1515 spa->spa_state = new_state; |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1516 spa->spa_final_txg = spa_last_synced_txg(spa) + 1; |
1544 | 1517 vdev_config_dirty(spa->spa_root_vdev); |
1601
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
1518 spa_config_exit(spa, FTAG); |
1544 | 1519 } |
789 | 1520 } |
1521 | |
4451 | 1522 spa_event_notify(spa, NULL, ESC_ZFS_POOL_DESTROY); |
1523 | |
789 | 1524 if (spa->spa_state != POOL_STATE_UNINITIALIZED) { |
1525 spa_unload(spa); | |
1526 spa_deactivate(spa); | |
1527 } | |
1528 | |
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
1529 if (oldconfig && spa->spa_config) |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
1530 VERIFY(nvlist_dup(spa->spa_config, oldconfig, 0) == 0); |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
1531 |
1544 | 1532 if (new_state != POOL_STATE_UNINITIALIZED) { |
1533 spa_remove(spa); | |
1534 spa_config_sync(); | |
1535 } | |
789 | 1536 mutex_exit(&spa_namespace_lock); |
1537 | |
1538 return (0); | |
1539 } | |
1540 | |
1541 /* | |
1542 * Destroy a storage pool. | |
1543 */ | |
1544 int | |
1545 spa_destroy(char *pool) | |
1546 { | |
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
1547 return (spa_export_common(pool, POOL_STATE_DESTROYED, NULL)); |
789 | 1548 } |
1549 | |
1550 /* | |
1551 * Export a storage pool. | |
1552 */ | |
1553 int | |
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
1554 spa_export(char *pool, nvlist_t **oldconfig) |
789 | 1555 { |
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
1556 return (spa_export_common(pool, POOL_STATE_EXPORTED, oldconfig)); |
789 | 1557 } |
1558 | |
1559 /* | |
1544 | 1560 * Similar to spa_export(), this unloads the spa_t without actually removing it |
1561 * from the namespace in any way. | |
1562 */ | |
1563 int | |
1564 spa_reset(char *pool) | |
1565 { | |
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
1566 return (spa_export_common(pool, POOL_STATE_UNINITIALIZED, NULL)); |
1544 | 1567 } |
1568 | |
1569 | |
1570 /* | |
789 | 1571 * ========================================================================== |
1572 * Device manipulation | |
1573 * ========================================================================== | |
1574 */ | |
1575 | |
1576 /* | |
4527 | 1577 * Add a device to a storage pool. |
789 | 1578 */ |
1579 int | |
1580 spa_vdev_add(spa_t *spa, nvlist_t *nvroot) | |
1581 { | |
1582 uint64_t txg; | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1583 int c, error; |
789 | 1584 vdev_t *rvd = spa->spa_root_vdev; |
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1585 vdev_t *vd, *tvd; |
2082 | 1586 nvlist_t **spares; |
1587 uint_t i, nspares; | |
789 | 1588 |
1589 txg = spa_vdev_enter(spa); | |
1590 | |
2082 | 1591 if ((error = spa_config_parse(spa, &vd, nvroot, NULL, 0, |
1592 VDEV_ALLOC_ADD)) != 0) | |
1593 return (spa_vdev_exit(spa, NULL, txg, error)); | |
1594 | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1595 spa->spa_pending_vdev = vd; |
789 | 1596 |
2082 | 1597 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, |
1598 &spares, &nspares) != 0) | |
1599 nspares = 0; | |
1600 | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1601 if (vd->vdev_children == 0 && nspares == 0) { |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1602 spa->spa_pending_vdev = NULL; |
2082 | 1603 return (spa_vdev_exit(spa, vd, txg, EINVAL)); |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1604 } |
2082 | 1605 |
1606 if (vd->vdev_children != 0) { | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1607 if ((error = vdev_create(vd, txg, B_FALSE)) != 0) { |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1608 spa->spa_pending_vdev = NULL; |
2082 | 1609 return (spa_vdev_exit(spa, vd, txg, error)); |
1610 } | |
1611 } | |
1612 | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1613 /* |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1614 * We must validate the spares after checking the children. Otherwise, |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1615 * vdev_inuse() will blindly overwrite the spare. |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1616 */ |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1617 if ((error = spa_validate_spares(spa, nvroot, txg, |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1618 VDEV_ALLOC_ADD)) != 0) { |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1619 spa->spa_pending_vdev = NULL; |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1620 return (spa_vdev_exit(spa, vd, txg, error)); |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1621 } |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1622 |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1623 spa->spa_pending_vdev = NULL; |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1624 |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1625 /* |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1626 * Transfer each new top-level vdev from vd to rvd. |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1627 */ |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1628 for (c = 0; c < vd->vdev_children; c++) { |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1629 tvd = vd->vdev_child[c]; |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1630 vdev_remove_child(vd, tvd); |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1631 tvd->vdev_id = rvd->vdev_children; |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1632 vdev_add_child(rvd, tvd); |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1633 vdev_config_dirty(tvd); |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1634 } |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1635 |
2082 | 1636 if (nspares != 0) { |
1637 if (spa->spa_sparelist != NULL) { | |
1638 nvlist_t **oldspares; | |
1639 uint_t oldnspares; | |
1640 nvlist_t **newspares; | |
1641 | |
1642 VERIFY(nvlist_lookup_nvlist_array(spa->spa_sparelist, | |
1643 ZPOOL_CONFIG_SPARES, &oldspares, &oldnspares) == 0); | |
1644 | |
1645 newspares = kmem_alloc(sizeof (void *) * | |
1646 (nspares + oldnspares), KM_SLEEP); | |
1647 for (i = 0; i < oldnspares; i++) | |
1648 VERIFY(nvlist_dup(oldspares[i], | |
1649 &newspares[i], KM_SLEEP) == 0); | |
1650 for (i = 0; i < nspares; i++) | |
1651 VERIFY(nvlist_dup(spares[i], | |
1652 &newspares[i + oldnspares], | |
1653 KM_SLEEP) == 0); | |
1654 | |
1655 VERIFY(nvlist_remove(spa->spa_sparelist, | |
1656 ZPOOL_CONFIG_SPARES, DATA_TYPE_NVLIST_ARRAY) == 0); | |
1657 | |
1658 VERIFY(nvlist_add_nvlist_array(spa->spa_sparelist, | |
1659 ZPOOL_CONFIG_SPARES, newspares, | |
1660 nspares + oldnspares) == 0); | |
1661 for (i = 0; i < oldnspares + nspares; i++) | |
1662 nvlist_free(newspares[i]); | |
1663 kmem_free(newspares, (oldnspares + nspares) * | |
1664 sizeof (void *)); | |
1665 } else { | |
1666 VERIFY(nvlist_alloc(&spa->spa_sparelist, | |
1667 NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
1668 VERIFY(nvlist_add_nvlist_array(spa->spa_sparelist, | |
1669 ZPOOL_CONFIG_SPARES, spares, nspares) == 0); | |
1670 } | |
1671 | |
1672 spa_load_spares(spa); | |
1673 spa->spa_sync_spares = B_TRUE; | |
789 | 1674 } |
1675 | |
1676 /* | |
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1677 * We have to be careful when adding new vdevs to an existing pool. |
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1678 * If other threads start allocating from these vdevs before we |
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1679 * sync the config cache, and we lose power, then upon reboot we may |
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1680 * fail to open the pool because there are DVAs that the config cache |
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1681 * can't translate. Therefore, we first add the vdevs without |
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1682 * initializing metaslabs; sync the config cache (via spa_vdev_exit()); |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1683 * and then let spa_config_update() initialize the new metaslabs. |
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1684 * |
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1685 * spa_load() checks for added-but-not-initialized vdevs, so that |
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1686 * if we lose power at any point in this sequence, the remaining |
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1687 * steps will be completed the next time we load the pool. |
789 | 1688 */ |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1689 (void) spa_vdev_exit(spa, vd, txg, 0); |
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1690 |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1691 mutex_enter(&spa_namespace_lock); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1692 spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1693 mutex_exit(&spa_namespace_lock); |
789 | 1694 |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1695 return (0); |
789 | 1696 } |
1697 | |
1698 /* | |
1699 * Attach a device to a mirror. The arguments are the path to any device | |
1700 * in the mirror, and the nvroot for the new device. If the path specifies | |
1701 * a device that is not mirrored, we automatically insert the mirror vdev. | |
1702 * | |
1703 * If 'replacing' is specified, the new device is intended to replace the | |
1704 * existing device; in this case the two devices are made into their own | |
4451 | 1705 * mirror using the 'replacing' vdev, which is functionally identical to |
789 | 1706 * the mirror vdev (it actually reuses all the same ops) but has a few |
1707 * extra rules: you can't attach to it after it's been created, and upon | |
1708 * completion of resilvering, the first disk (the one being replaced) | |
1709 * is automatically detached. | |
1710 */ | |
1711 int | |
1544 | 1712 spa_vdev_attach(spa_t *spa, uint64_t guid, nvlist_t *nvroot, int replacing) |
789 | 1713 { |
1714 uint64_t txg, open_txg; | |
1715 int error; | |
1716 vdev_t *rvd = spa->spa_root_vdev; | |
1717 vdev_t *oldvd, *newvd, *newrootvd, *pvd, *tvd; | |
2082 | 1718 vdev_ops_t *pvops; |
4527 | 1719 int is_log; |
789 | 1720 |
1721 txg = spa_vdev_enter(spa); | |
1722 | |
1544 | 1723 oldvd = vdev_lookup_by_guid(rvd, guid); |
789 | 1724 |
1725 if (oldvd == NULL) | |
1726 return (spa_vdev_exit(spa, NULL, txg, ENODEV)); | |
1727 | |
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1728 if (!oldvd->vdev_ops->vdev_op_leaf) |
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1729 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1730 |
789 | 1731 pvd = oldvd->vdev_parent; |
1732 | |
2082 | 1733 if ((error = spa_config_parse(spa, &newrootvd, nvroot, NULL, 0, |
4451 | 1734 VDEV_ALLOC_ADD)) != 0) |
1735 return (spa_vdev_exit(spa, NULL, txg, EINVAL)); | |
1736 | |
1737 if (newrootvd->vdev_children != 1) | |
789 | 1738 return (spa_vdev_exit(spa, newrootvd, txg, EINVAL)); |
1739 | |
1740 newvd = newrootvd->vdev_child[0]; | |
1741 | |
1742 if (!newvd->vdev_ops->vdev_op_leaf) | |
1743 return (spa_vdev_exit(spa, newrootvd, txg, EINVAL)); | |
1744 | |
2082 | 1745 if ((error = vdev_create(newrootvd, txg, replacing)) != 0) |
789 | 1746 return (spa_vdev_exit(spa, newrootvd, txg, error)); |
1747 | |
4527 | 1748 /* |
1749 * Spares can't replace logs | |
1750 */ | |
1751 is_log = oldvd->vdev_islog; | |
1752 if (is_log && newvd->vdev_isspare) | |
1753 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
1754 | |
2082 | 1755 if (!replacing) { |
1756 /* | |
1757 * For attach, the only allowable parent is a mirror or the root | |
1758 * vdev. | |
1759 */ | |
1760 if (pvd->vdev_ops != &vdev_mirror_ops && | |
1761 pvd->vdev_ops != &vdev_root_ops) | |
1762 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
1763 | |
1764 pvops = &vdev_mirror_ops; | |
1765 } else { | |
1766 /* | |
1767 * Active hot spares can only be replaced by inactive hot | |
1768 * spares. | |
1769 */ | |
1770 if (pvd->vdev_ops == &vdev_spare_ops && | |
1771 pvd->vdev_child[1] == oldvd && | |
1772 !spa_has_spare(spa, newvd->vdev_guid)) | |
1773 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
1774 | |
1775 /* | |
1776 * If the source is a hot spare, and the parent isn't already a | |
1777 * spare, then we want to create a new hot spare. Otherwise, we | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1778 * 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
eschrock
parents:
3290
diff
changeset
|
1779 * attach to a spared vdev child unless the 'isspare' state is |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1780 * the same (spare replaces spare, non-spare replaces |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1781 * non-spare). |
2082 | 1782 */ |
1783 if (pvd->vdev_ops == &vdev_replacing_ops) | |
1784 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1785 else if (pvd->vdev_ops == &vdev_spare_ops && |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1786 newvd->vdev_isspare != oldvd->vdev_isspare) |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1787 return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
2082 | 1788 else if (pvd->vdev_ops != &vdev_spare_ops && |
1789 newvd->vdev_isspare) | |
1790 pvops = &vdev_spare_ops; | |
1791 else | |
1792 pvops = &vdev_replacing_ops; | |
1793 } | |
1794 | |
1175
759d20c7e57b
6366265 attach/replace should allow a new device size at least the min of all devs in a mirror/raidz
lling
parents:
797
diff
changeset
|
1795 /* |
759d20c7e57b
6366265 attach/replace should allow a new device size at least the min of all devs in a mirror/raidz
lling
parents:
797
diff
changeset
|
1796 * 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
lling
parents:
797
diff
changeset
|
1797 * device size. |
759d20c7e57b
6366265 attach/replace should allow a new device size at least the min of all devs in a mirror/raidz
lling
parents:
797
diff
changeset
|
1798 */ |
759d20c7e57b
6366265 attach/replace should allow a new device size at least the min of all devs in a mirror/raidz
lling
parents:
797
diff
changeset
|
1799 if (newvd->vdev_psize < vdev_get_rsize(oldvd)) |
789 | 1800 return (spa_vdev_exit(spa, newrootvd, txg, EOVERFLOW)); |
1801 | |
1732 | 1802 /* |
1803 * The new device cannot have a higher alignment requirement | |
1804 * than the top-level vdev. | |
1805 */ | |
1806 if (newvd->vdev_ashift > oldvd->vdev_top->vdev_ashift) | |
789 | 1807 return (spa_vdev_exit(spa, newrootvd, txg, EDOM)); |
1808 | |
1809 /* | |
1810 * If this is an in-place replacement, update oldvd's path and devid | |
1811 * to make it distinguishable from newvd, and unopenable from now on. | |
1812 */ | |
1813 if (strcmp(oldvd->vdev_path, newvd->vdev_path) == 0) { | |
1814 spa_strfree(oldvd->vdev_path); | |
1815 oldvd->vdev_path = kmem_alloc(strlen(newvd->vdev_path) + 5, | |
1816 KM_SLEEP); | |
1817 (void) sprintf(oldvd->vdev_path, "%s/%s", | |
1818 newvd->vdev_path, "old"); | |
1819 if (oldvd->vdev_devid != NULL) { | |
1820 spa_strfree(oldvd->vdev_devid); | |
1821 oldvd->vdev_devid = NULL; | |
1822 } | |
1823 } | |
1824 | |
1825 /* | |
2082 | 1826 * If the parent is not a mirror, or if we're replacing, insert the new |
1827 * mirror/replacing/spare vdev above oldvd. | |
789 | 1828 */ |
1829 if (pvd->vdev_ops != pvops) | |
1830 pvd = vdev_add_parent(oldvd, pvops); | |
1831 | |
1832 ASSERT(pvd->vdev_top->vdev_parent == rvd); | |
1833 ASSERT(pvd->vdev_ops == pvops); | |
1834 ASSERT(oldvd->vdev_parent == pvd); | |
1835 | |
1836 /* | |
1837 * Extract the new device from its root and add it to pvd. | |
1838 */ | |
1839 vdev_remove_child(newrootvd, newvd); | |
1840 newvd->vdev_id = pvd->vdev_children; | |
1841 vdev_add_child(pvd, newvd); | |
1842 | |
1544 | 1843 /* |
1844 * If newvd is smaller than oldvd, but larger than its rsize, | |
1845 * the addition of newvd may have decreased our parent's asize. | |
1846 */ | |
1847 pvd->vdev_asize = MIN(pvd->vdev_asize, newvd->vdev_asize); | |
1848 | |
789 | 1849 tvd = newvd->vdev_top; |
1850 ASSERT(pvd->vdev_top == tvd); | |
1851 ASSERT(tvd->vdev_parent == rvd); | |
1852 | |
1853 vdev_config_dirty(tvd); | |
1854 | |
1855 /* | |
1856 * Set newvd's DTL to [TXG_INITIAL, open_txg]. It will propagate | |
1857 * upward when spa_vdev_exit() calls vdev_dtl_reassess(). | |
1858 */ | |
1859 open_txg = txg + TXG_CONCURRENT_STATES - 1; | |
1860 | |
1861 mutex_enter(&newvd->vdev_dtl_lock); | |
1862 space_map_add(&newvd->vdev_dtl_map, TXG_INITIAL, | |
1863 open_txg - TXG_INITIAL + 1); | |
1864 mutex_exit(&newvd->vdev_dtl_lock); | |
1865 | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1866 if (newvd->vdev_isspare) |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1867 spa_spare_activate(newvd); |
1544 | 1868 |
789 | 1869 /* |
1870 * Mark newvd's DTL dirty in this txg. | |
1871 */ | |
1732 | 1872 vdev_dirty(tvd, VDD_DTL, newvd, txg); |
789 | 1873 |
1874 (void) spa_vdev_exit(spa, newrootvd, open_txg, 0); | |
1875 | |
1876 /* | |
4451 | 1877 * Kick off a resilver to update newvd. We need to grab the namespace |
1878 * lock because spa_scrub() needs to post a sysevent with the pool name. | |
789 | 1879 */ |
4451 | 1880 mutex_enter(&spa_namespace_lock); |
789 | 1881 VERIFY(spa_scrub(spa, POOL_SCRUB_RESILVER, B_TRUE) == 0); |
4451 | 1882 mutex_exit(&spa_namespace_lock); |
789 | 1883 |
1884 return (0); | |
1885 } | |
1886 | |
1887 /* | |
1888 * Detach a device from a mirror or replacing vdev. | |
1889 * If 'replace_done' is specified, only detach if the parent | |
1890 * is a replacing vdev. | |
1891 */ | |
1892 int | |
1544 | 1893 spa_vdev_detach(spa_t *spa, uint64_t guid, int replace_done) |
789 | 1894 { |
1895 uint64_t txg; | |
1896 int c, t, error; | |
1897 vdev_t *rvd = spa->spa_root_vdev; | |
1898 vdev_t *vd, *pvd, *cvd, *tvd; | |
2082 | 1899 boolean_t unspare = B_FALSE; |
1900 uint64_t unspare_guid; | |
789 | 1901 |
1902 txg = spa_vdev_enter(spa); | |
1903 | |
1544 | 1904 vd = vdev_lookup_by_guid(rvd, guid); |
789 | 1905 |
1906 if (vd == NULL) | |
1907 return (spa_vdev_exit(spa, NULL, txg, ENODEV)); | |
1908 | |
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1909 if (!vd->vdev_ops->vdev_op_leaf) |
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1910 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1911 |
789 | 1912 pvd = vd->vdev_parent; |
1913 | |
1914 /* | |
1915 * If replace_done is specified, only remove this device if it's | |
2082 | 1916 * the first child of a replacing vdev. For the 'spare' vdev, either |
1917 * disk can be removed. | |
789 | 1918 */ |
2082 | 1919 if (replace_done) { |
1920 if (pvd->vdev_ops == &vdev_replacing_ops) { | |
1921 if (vd->vdev_id != 0) | |
1922 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
1923 } else if (pvd->vdev_ops != &vdev_spare_ops) { | |
1924 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
1925 } | |
1926 } | |
1927 | |
1928 ASSERT(pvd->vdev_ops != &vdev_spare_ops || | |
4577 | 1929 spa_version(spa) >= SPA_VERSION_SPARES); |
789 | 1930 |
1931 /* | |
2082 | 1932 * Only mirror, replacing, and spare vdevs support detach. |
789 | 1933 */ |
1934 if (pvd->vdev_ops != &vdev_replacing_ops && | |
2082 | 1935 pvd->vdev_ops != &vdev_mirror_ops && |
1936 pvd->vdev_ops != &vdev_spare_ops) | |
789 | 1937 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
1938 | |
1939 /* | |
1940 * If there's only one replica, you can't detach it. | |
1941 */ | |
1942 if (pvd->vdev_children <= 1) | |
1943 return (spa_vdev_exit(spa, NULL, txg, EBUSY)); | |
1944 | |
1945 /* | |
1946 * If all siblings have non-empty DTLs, this device may have the only | |
1947 * valid copy of the data, which means we cannot safely detach it. | |
1948 * | |
1949 * XXX -- as in the vdev_offline() case, we really want a more | |
1950 * precise DTL check. | |
1951 */ | |
1952 for (c = 0; c < pvd->vdev_children; c++) { | |
1953 uint64_t dirty; | |
1954 | |
1955 cvd = pvd->vdev_child[c]; | |
1956 if (cvd == vd) | |
1957 continue; | |
1958 if (vdev_is_dead(cvd)) | |
1959 continue; | |
1960 mutex_enter(&cvd->vdev_dtl_lock); | |
1961 dirty = cvd->vdev_dtl_map.sm_space | | |
1962 cvd->vdev_dtl_scrub.sm_space; | |
1963 mutex_exit(&cvd->vdev_dtl_lock); | |
1964 if (!dirty) | |
1965 break; | |
1966 } | |
2082 | 1967 |
1968 /* | |
1969 * If we are a replacing or spare vdev, then we can always detach the | |
1970 * latter child, as that is how one cancels the operation. | |
1971 */ | |
1972 if ((pvd->vdev_ops == &vdev_mirror_ops || vd->vdev_id != 1) && | |
1973 c == pvd->vdev_children) | |
789 | 1974 return (spa_vdev_exit(spa, NULL, txg, EBUSY)); |
1975 | |
1976 /* | |
2082 | 1977 * If we are detaching the original disk from a spare, then it implies |
1978 * that the spare should become a real disk, and be removed from the | |
1979 * active spare list for the pool. | |
1980 */ | |
1981 if (pvd->vdev_ops == &vdev_spare_ops && | |
1982 vd->vdev_id == 0) | |
1983 unspare = B_TRUE; | |
1984 | |
1985 /* | |
789 | 1986 * Erase the disk labels so the disk can be used for other things. |
1987 * This must be done after all other error cases are handled, | |
1988 * but before we disembowel vd (so we can still do I/O to it). | |
1989 * But if we can't do it, don't treat the error as fatal -- | |
1990 * it may be that the unwritability of the disk is the reason | |
1991 * it's being detached! | |
1992 */ | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
1993 error = vdev_label_init(vd, 0, VDEV_LABEL_REMOVE); |
789 | 1994 |
1995 /* | |
1996 * Remove vd from its parent and compact the parent's children. | |
1997 */ | |
1998 vdev_remove_child(pvd, vd); | |
1999 vdev_compact_children(pvd); | |
2000 | |
2001 /* | |
2002 * Remember one of the remaining children so we can get tvd below. | |
2003 */ | |
2004 cvd = pvd->vdev_child[0]; | |
2005 | |
2006 /* | |
2082 | 2007 * If we need to remove the remaining child from the list of hot spares, |
2008 * do it now, marking the vdev as no longer a spare in the process. We | |
2009 * must do this before vdev_remove_parent(), because that can change the | |
2010 * GUID if it creates a new toplevel GUID. | |
2011 */ | |
2012 if (unspare) { | |
2013 ASSERT(cvd->vdev_isspare); | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
2014 spa_spare_remove(cvd); |
2082 | 2015 unspare_guid = cvd->vdev_guid; |
2016 } | |
2017 | |
2018 /* | |
789 | 2019 * If the parent mirror/replacing vdev only has one child, |
2020 * the parent is no longer needed. Remove it from the tree. | |
2021 */ | |
2022 if (pvd->vdev_children == 1) | |
2023 vdev_remove_parent(cvd); | |
2024 | |
2025 /* | |
2026 * We don't set tvd until now because the parent we just removed | |
2027 * may have been the previous top-level vdev. | |
2028 */ | |
2029 tvd = cvd->vdev_top; | |
2030 ASSERT(tvd->vdev_parent == rvd); | |
2031 | |
2032 /* | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
2033 * Reevaluate the parent vdev state. |
789 | 2034 */ |
4451 | 2035 vdev_propagate_state(cvd); |
789 | 2036 |
2037 /* | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
2038 * 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
eschrock
parents:
3290
diff
changeset
|
2039 * 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
eschrock
parents:
3290
diff
changeset
|
2040 * 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
eschrock
parents:
3290
diff
changeset
|
2041 * there's nothing to read from disk. |
789 | 2042 */ |
1732 | 2043 VERIFY(vdev_metaslab_init(tvd, txg) == 0); |
789 | 2044 |
2045 vdev_config_dirty(tvd); | |
2046 | |
2047 /* | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
2048 * 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
eschrock
parents:
3290
diff
changeset
|
2049 * 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
eschrock
parents:
3290
diff
changeset
|
2050 * 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
eschrock
parents:
3290
diff
changeset
|
2051 * prevent vd from being accessed after it's freed. |
789 | 2052 */ |
2053 for (t = 0; t < TXG_SIZE; t++) | |
2054 (void) txg_list_remove_this(&tvd->vdev_dtl_list, vd, t); | |
1732 | 2055 vd->vdev_detached = B_TRUE; |
2056 vdev_dirty(tvd, VDD_DTL, vd, txg); | |
789 | 2057 |
4451 | 2058 spa_event_notify(spa, vd, ESC_ZFS_VDEV_REMOVE); |
2059 | |
2082 | 2060 error = spa_vdev_exit(spa, vd, txg, 0); |
2061 | |
2062 /* | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
2063 * If this was the removal of the original device in a hot spare vdev, |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
2064 * then we want to go through and remove the device from the hot spare |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
2065 * list of every other pool. |
2082 | 2066 */ |
2067 if (unspare) { | |
2068 spa = NULL; | |
2069 mutex_enter(&spa_namespace_lock); | |
2070 while ((spa = spa_next(spa)) != NULL) { | |
2071 if (spa->spa_state != POOL_STATE_ACTIVE) | |
2072 continue; | |
2073 | |
2074 (void) spa_vdev_remove(spa, unspare_guid, B_TRUE); | |
2075 } | |
2076 mutex_exit(&spa_namespace_lock); | |
2077 } | |
2078 | |
2079 return (error); | |
2080 } | |
2081 | |
2082 /* | |
2083 * Remove a device from the pool. Currently, this supports removing only hot | |
2084 * spares. | |
2085 */ | |
2086 int | |
2087 spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare) | |
2088 { | |
2089 vdev_t *vd; | |
2090 nvlist_t **spares, *nv, **newspares; | |
2091 uint_t i, j, nspares; | |
2092 int ret = 0; | |
2093 | |
2094 spa_config_enter(spa, RW_WRITER, FTAG); | |
2095 | |
2096 vd = spa_lookup_by_guid(spa, guid); | |
2097 | |
2098 nv = NULL; | |
2099 if (spa->spa_spares != NULL && | |
2100 nvlist_lookup_nvlist_array(spa->spa_sparelist, ZPOOL_CONFIG_SPARES, | |
2101 &spares, &nspares) == 0) { | |
2102 for (i = 0; i < nspares; i++) { | |
2103 uint64_t theguid; | |
2104 | |
2105 VERIFY(nvlist_lookup_uint64(spares[i], | |
2106 ZPOOL_CONFIG_GUID, &theguid) == 0); | |
2107 if (theguid == guid) { | |
2108 nv = spares[i]; | |
2109 break; | |
2110 } | |
2111 } | |
2112 } | |
2113 | |
2114 /* | |
2115 * We only support removing a hot spare, and only if it's not currently | |
2116 * in use in this pool. | |
2117 */ | |
2118 if (nv == NULL && vd == NULL) { | |
2119 ret = ENOENT; | |
2120 goto out; | |
2121 } | |
2122 | |
2123 if (nv == NULL && vd != NULL) { | |
2124 ret = ENOTSUP; | |
2125 goto out; | |
2126 } | |
2127 | |
2128 if (!unspare && nv != NULL && vd != NULL) { | |
2129 ret = EBUSY; | |
2130 goto out; | |
2131 } | |
2132 | |
2133 if (nspares == 1) { | |
2134 newspares = NULL; | |
2135 } else { | |
2136 newspares = kmem_alloc((nspares - 1) * sizeof (void *), | |
2137 KM_SLEEP); | |
2138 for (i = 0, j = 0; i < nspares; i++) { | |
2139 if (spares[i] != nv) | |
2140 VERIFY(nvlist_dup(spares[i], | |
2141 &newspares[j++], KM_SLEEP) == 0); | |
2142 } | |
2143 } | |
2144 | |
2145 VERIFY(nvlist_remove(spa->spa_sparelist, ZPOOL_CONFIG_SPARES, | |
2146 DATA_TYPE_NVLIST_ARRAY) == 0); | |
2147 VERIFY(nvlist_add_nvlist_array(spa->spa_sparelist, ZPOOL_CONFIG_SPARES, | |
2148 newspares, nspares - 1) == 0); | |
2149 for (i = 0; i < nspares - 1; i++) | |
2150 nvlist_free(newspares[i]); | |
2151 kmem_free(newspares, (nspares - 1) * sizeof (void *)); | |
2152 spa_load_spares(spa); | |
2153 spa->spa_sync_spares = B_TRUE; | |
2154 | |
2155 out: | |
2156 spa_config_exit(spa, FTAG); | |
2157 | |
2158 return (ret); | |
789 | 2159 } |
2160 | |
2161 /* | |
4451 | 2162 * Find any device that's done replacing, or a vdev marked 'unspare' that's |
2163 * current spared, so we can detach it. | |
789 | 2164 */ |
1544 | 2165 static vdev_t * |
4451 | 2166 spa_vdev_resilver_done_hunt(vdev_t *vd) |
789 | 2167 { |
1544 | 2168 vdev_t *newvd, *oldvd; |
789 | 2169 int c; |
2170 | |
1544 | 2171 for (c = 0; c < vd->vdev_children; c++) { |
4451 | 2172 oldvd = spa_vdev_resilver_done_hunt(vd->vdev_child[c]); |
1544 | 2173 if (oldvd != NULL) |
2174 return (oldvd); | |
2175 } | |
789 | 2176 |
4451 | 2177 /* |
2178 * Check for a completed replacement. | |
2179 */ | |
789 | 2180 if (vd->vdev_ops == &vdev_replacing_ops && vd->vdev_children == 2) { |
1544 | 2181 oldvd = vd->vdev_child[0]; |
2182 newvd = vd->vdev_child[1]; | |
789 | 2183 |
1544 | 2184 mutex_enter(&newvd->vdev_dtl_lock); |
2185 if (newvd->vdev_dtl_map.sm_space == 0 && | |
2186 newvd->vdev_dtl_scrub.sm_space == 0) { | |
2187 mutex_exit(&newvd->vdev_dtl_lock); | |
2188 return (oldvd); | |
2189 } | |
2190 mutex_exit(&newvd->vdev_dtl_lock); | |
2191 } | |
789 | 2192 |
4451 | 2193 /* |
2194 * Check for a completed resilver with the 'unspare' flag set. | |
2195 */ | |
2196 if (vd->vdev_ops == &vdev_spare_ops && vd->vdev_children == 2) { | |
2197 newvd = vd->vdev_child[0]; | |
2198 oldvd = vd->vdev_child[1]; | |
2199 | |
2200 mutex_enter(&newvd->vdev_dtl_lock); | |
2201 if (newvd->vdev_unspare && | |
2202 newvd->vdev_dtl_map.sm_space == 0 && | |
2203 newvd->vdev_dtl_scrub.sm_space == 0) { | |
2204 newvd->vdev_unspare = 0; | |
2205 mutex_exit(&newvd->vdev_dtl_lock); | |
2206 return (oldvd); | |
2207 } | |
2208 mutex_exit(&newvd->vdev_dtl_lock); | |
2209 } | |
2210 | |
1544 | 2211 return (NULL); |
789 | 2212 } |
2213 | |
1544 | 2214 static void |
4451 | 2215 spa_vdev_resilver_done(spa_t *spa) |
789 | 2216 { |
1544 | 2217 vdev_t *vd; |
2082 | 2218 vdev_t *pvd; |
1544 | 2219 uint64_t guid; |
2082 | 2220 uint64_t pguid = 0; |
789 | 2221 |
1544 | 2222 spa_config_enter(spa, RW_READER, FTAG); |
789 | 2223 |
4451 | 2224 while ((vd = spa_vdev_resilver_done_hunt(spa->spa_root_vdev)) != NULL) { |
1544 | 2225 guid = vd->vdev_guid; |
2082 | 2226 /* |
2227 * If we have just finished replacing a hot spared device, then | |
2228 * we need to detach the parent's first child (the original hot | |
2229 * spare) as well. | |
2230 */ | |
2231 pvd = vd->vdev_parent; | |
2232 if (pvd->vdev_parent->vdev_ops == &vdev_spare_ops && | |
2233 pvd->vdev_id == 0) { | |
2234 ASSERT(pvd->vdev_ops == &vdev_replacing_ops); | |
2235 ASSERT(pvd->vdev_parent->vdev_children == 2); | |
2236 pguid = pvd->vdev_parent->vdev_child[1]->vdev_guid; | |
2237 } | |
1544 | 2238 spa_config_exit(spa, FTAG); |
2239 if (spa_vdev_detach(spa, guid, B_TRUE) != 0) | |
2240 return; | |
2082 | 2241 if (pguid != 0 && spa_vdev_detach(spa, pguid, B_TRUE) != 0) |
2242 return; | |
1544 | 2243 spa_config_enter(spa, RW_READER, FTAG); |
789 | 2244 } |
2245 | |
1544 | 2246 spa_config_exit(spa, FTAG); |
789 | 2247 } |
2248 | |
2249 /* | |
1354
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2250 * Update the stored path for this vdev. Dirty the vdev configuration, relying |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2251 * on spa_vdev_enter/exit() to synchronize the labels and cache. |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2252 */ |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2253 int |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2254 spa_vdev_setpath(spa_t *spa, uint64_t guid, const char *newpath) |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2255 { |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2256 vdev_t *rvd, *vd; |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2257 uint64_t txg; |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2258 |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2259 rvd = spa->spa_root_vdev; |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2260 |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2261 txg = spa_vdev_enter(spa); |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2262 |
2082 | 2263 if ((vd = vdev_lookup_by_guid(rvd, guid)) == NULL) { |
2264 /* | |
2265 * Determine if this is a reference to a hot spare. In that | |
2266 * case, update the path as stored in the spare list. | |
2267 */ | |
2268 nvlist_t **spares; | |
2269 uint_t i, nspares; | |
2270 if (spa->spa_sparelist != NULL) { | |
2271 VERIFY(nvlist_lookup_nvlist_array(spa->spa_sparelist, | |
2272 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); | |
2273 for (i = 0; i < nspares; i++) { | |
2274 uint64_t theguid; | |
2275 VERIFY(nvlist_lookup_uint64(spares[i], | |
2276 ZPOOL_CONFIG_GUID, &theguid) == 0); | |
2277 if (theguid == guid) | |
2278 break; | |
2279 } | |
2280 | |
2281 if (i == nspares) | |
2282 return (spa_vdev_exit(spa, NULL, txg, ENOENT)); | |
2283 | |
2284 VERIFY(nvlist_add_string(spares[i], | |
2285 ZPOOL_CONFIG_PATH, newpath) == 0); | |
2286 spa_load_spares(spa); | |
2287 spa->spa_sync_spares = B_TRUE; | |
2288 return (spa_vdev_exit(spa, NULL, txg, 0)); | |
2289 } else { | |
2290 return (spa_vdev_exit(spa, NULL, txg, ENOENT)); | |
2291 } | |
2292 } | |
1354
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2293 |
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
2294 if (!vd->vdev_ops->vdev_op_leaf) |
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
2295 return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
2296 |
1354
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2297 spa_strfree(vd->vdev_path); |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2298 vd->vdev_path = spa_strdup(newpath); |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2299 |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2300 vdev_config_dirty(vd->vdev_top); |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2301 |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2302 return (spa_vdev_exit(spa, NULL, txg, 0)); |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2303 } |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2304 |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2305 /* |
789 | 2306 * ========================================================================== |
2307 * SPA Scrubbing | |
2308 * ========================================================================== | |
2309 */ | |
2310 | |
2311 static void | |
2312 spa_scrub_io_done(zio_t *zio) | |
2313 { | |
2314 spa_t *spa = zio->io_spa; | |
2315 | |
4309
3dfde0f4662d
6542676 ARC needs to track meta-data memory overhead
maybee
parents:
4178
diff
changeset
|
2316 arc_data_buf_free(zio->io_data, zio->io_size); |
789 | 2317 |
2318 mutex_enter(&spa->spa_scrub_lock); | |
1544 | 2319 if (zio->io_error && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { |
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2320 vdev_t *vd = zio->io_vd ? zio->io_vd : spa->spa_root_vdev; |
789 | 2321 spa->spa_scrub_errors++; |
2322 mutex_enter(&vd->vdev_stat_lock); | |
2323 vd->vdev_stat.vs_scrub_errors++; | |
2324 mutex_exit(&vd->vdev_stat_lock); | |
2325 } | |
3697
5340a4d98e0b
6456888 zpool scrubbing leads to memory exhaustion and system hang
mishra
parents:
3377
diff
changeset
|
2326 |
5340a4d98e0b
6456888 zpool scrubbing leads to memory exhaustion and system hang
mishra
parents:
3377
diff
changeset
|
2327 if (--spa->spa_scrub_inflight < spa->spa_scrub_maxinflight) |
1544 | 2328 cv_broadcast(&spa->spa_scrub_io_cv); |
3697
5340a4d98e0b
6456888 zpool scrubbing leads to memory exhaustion and system hang
mishra
parents:
3377
diff
changeset
|
2329 |
5340a4d98e0b
6456888 zpool scrubbing leads to memory exhaustion and system hang
mishra
parents:
3377
diff
changeset
|
2330 ASSERT(spa->spa_scrub_inflight >= 0); |
5340a4d98e0b
6456888 zpool scrubbing leads to memory exhaustion and system hang
mishra
parents:
3377
diff
changeset
|
2331 |
1544 | 2332 mutex_exit(&spa->spa_scrub_lock); |
789 | 2333 } |
2334 | |
2335 static void | |
1544 | 2336 spa_scrub_io_start(spa_t *spa, blkptr_t *bp, int priority, int flags, |
2337 zbookmark_t *zb) | |
789 | 2338 { |
2339 size_t size = BP_GET_LSIZE(bp); | |
3697
5340a4d98e0b
6456888 zpool scrubbing leads to memory exhaustion and system hang
mishra
parents:
3377
diff
changeset
|
2340 void *data; |
789 | 2341 |
2342 mutex_enter(&spa->spa_scrub_lock); | |
3697
5340a4d98e0b
6456888 zpool scrubbing leads to memory exhaustion and system hang
mishra
parents:
3377
diff
changeset
|
2343 /* |
5340a4d98e0b
6456888 zpool scrubbing leads to memory exhaustion and system hang
mishra
parents:
3377
diff
changeset
|
2344 * Do not give too much work to vdev(s). |
5340a4d98e0b
6456888 zpool scrubbing leads to memory exhaustion and system hang
mishra
parents:
3377
diff
changeset
|
2345 */ |
5340a4d98e0b
6456888 zpool scrubbing leads to memory exhaustion and system hang
mishra
parents:
3377
diff
changeset
|
2346 while (spa->spa_scrub_inflight >= spa->spa_scrub_maxinflight) { |
5340a4d98e0b
6456888 zpool scrubbing leads to memory exhaustion and system hang
mishra
parents:
3377
diff
changeset
|
2347 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); |
5340a4d98e0b
6456888 zpool scrubbing leads to memory exhaustion and system hang
mishra
parents:
3377
diff
changeset
|
2348 } |
789 | 2349 spa->spa_scrub_inflight++; |
2350 mutex_exit(&spa->spa_scrub_lock); | |
2351 | |
4309
3dfde0f4662d
6542676 ARC needs to track meta-data memory overhead
maybee
parents:
4178
diff
changeset
|
2352 data = arc_data_buf_alloc(size); |
3697
5340a4d98e0b
6456888 zpool scrubbing leads to memory exhaustion and system hang
mishra
parents:
3377
diff
changeset
|
2353 |
1544 | 2354 if (zb->zb_level == -1 && BP_GET_TYPE(bp) != DMU_OT_OBJSET) |
2355 flags |= ZIO_FLAG_SPECULATIVE; /* intent log block */ | |
2356 | |
1807
35c8b566d7af
6410711 intent log blocks don't get invited to pool parties
bonwick
parents:
1775
diff
changeset
|
2357 flags |= ZIO_FLAG_SCRUB_THREAD | ZIO_FLAG_CANFAIL; |
1544 | 2358 |
789 | 2359 zio_nowait(zio_read(NULL, spa, bp, data, size, |
1544 | 2360 spa_scrub_io_done, NULL, priority, flags, zb)); |
789 | 2361 } |
2362 | |
2363 /* ARGSUSED */ | |
2364 static int | |
2365 spa_scrub_cb(traverse_blk_cache_t *bc, spa_t *spa, void *a) | |
2366 { | |
2367 blkptr_t *bp = &bc->bc_blkptr; | |
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2368 vdev_t *vd = spa->spa_root_vdev; |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2369 dva_t *dva = bp->blk_dva; |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2370 int needs_resilver = B_FALSE; |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2371 int d; |
789 | 2372 |
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2373 if (bc->bc_errno) { |
789 | 2374 /* |
2375 * We can't scrub this block, but we can continue to scrub | |
2376 * the rest of the pool. Note the error and move along. | |
2377 */ | |
2378 mutex_enter(&spa->spa_scrub_lock); | |
2379 spa->spa_scrub_errors++; | |
2380 mutex_exit(&spa->spa_scrub_lock); | |
2381 | |
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2382 mutex_enter(&vd->vdev_stat_lock); |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2383 vd->vdev_stat.vs_scrub_errors++; |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2384 mutex_exit(&vd->vdev_stat_lock); |
789 | 2385 |
2386 return (ERESTART); | |
2387 } | |
2388 | |
2389 ASSERT(bp->blk_birth < spa->spa_scrub_maxtxg); | |
2390 | |
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2391 for (d = 0; d < BP_GET_NDVAS(bp); d++) { |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2392 vd = vdev_lookup_top(spa, DVA_GET_VDEV(&dva[d])); |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2393 |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2394 ASSERT(vd != NULL); |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2395 |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2396 /* |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2397 * Keep track of how much data we've examined so that |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2398 * zpool(1M) status can make useful progress reports. |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2399 */ |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2400 mutex_enter(&vd->vdev_stat_lock); |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2401 vd->vdev_stat.vs_scrub_examined += DVA_GET_ASIZE(&dva[d]); |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2402 mutex_exit(&vd->vdev_stat_lock); |
789 | 2403 |
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2404 if (spa->spa_scrub_type == POOL_SCRUB_RESILVER) { |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2405 if (DVA_GET_GANG(&dva[d])) { |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2406 /* |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2407 * Gang members may be spread across multiple |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2408 * vdevs, so the best we can do is look at the |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2409 * pool-wide DTL. |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2410 * XXX -- it would be better to change our |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2411 * allocation policy to ensure that this can't |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2412 * happen. |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2413 */ |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2414 vd = spa->spa_root_vdev; |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2415 } |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2416 if (vdev_dtl_contains(&vd->vdev_dtl_map, |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2417 bp->blk_birth, 1)) |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2418 needs_resilver = B_TRUE; |
789 | 2419 } |
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2420 } |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2421 |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2422 if (spa->spa_scrub_type == POOL_SCRUB_EVERYTHING) |
789 | 2423 spa_scrub_io_start(spa, bp, ZIO_PRIORITY_SCRUB, |
1544 | 2424 ZIO_FLAG_SCRUB, &bc->bc_bookmark); |
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2425 else if (needs_resilver) |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2426 spa_scrub_io_start(spa, bp, ZIO_PRIORITY_RESILVER, |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2427 ZIO_FLAG_RESILVER, &bc->bc_bookmark); |
789 | 2428 |
2429 return (0); | |
2430 } | |
2431 | |
2432 static void | |
2433 spa_scrub_thread(spa_t *spa) | |
2434 { | |
2435 callb_cpr_t cprinfo; | |
2436 traverse_handle_t *th = spa->spa_scrub_th; | |
2437 vdev_t *rvd = spa->spa_root_vdev; | |
2438 pool_scrub_type_t scrub_type = spa->spa_scrub_type; | |
2439 int error = 0; | |
2440 boolean_t complete; | |
2441 | |
2442 CALLB_CPR_INIT(&cprinfo, &spa->spa_scrub_lock, callb_generic_cpr, FTAG); | |
2443 | |
797
af56ba8b7e41
6344108 snapshot create/delete interlock with scrub/resilver must sync txg
bonwick
parents:
789
diff
changeset
|
2444 /* |
af56ba8b7e41
6344108 snapshot create/delete interlock with scrub/resilver must sync txg
bonwick
parents:
789
diff
changeset
|
2445 * If we're restarting due to a snapshot create/delete, |
af56ba8b7e41
6344108 snapshot create/delete interlock with scrub/resilver must sync txg
bonwick
parents:
789
diff
changeset
|
2446 * wait for that to complete. |
af56ba8b7e41
6344108 snapshot create/delete interlock with scrub/resilver must sync txg
bonwick
parents:
789
diff
changeset
|
2447 */ |
af56ba8b7e41
6344108 snapshot create/delete interlock with scrub/resilver must sync txg
bonwick
parents:
789
diff
changeset
|
2448 txg_wait_synced(spa_get_dsl(spa), 0); |
af56ba8b7e41
6344108 snapshot create/delete interlock with scrub/resilver must sync txg
bonwick
parents:
789
diff
changeset
|
2449 |
1544 | 2450 dprintf("start %s mintxg=%llu maxtxg=%llu\n", |
2451 scrub_type == POOL_SCRUB_RESILVER ? "resilver" : "scrub", | |
2452 spa->spa_scrub_mintxg, spa->spa_scrub_maxtxg); | |
2453 | |
2454 spa_config_enter(spa, RW_WRITER, FTAG); | |
2455 vdev_reopen(rvd); /* purge all vdev caches */ | |
789 | 2456 vdev_config_dirty(rvd); /* rewrite all disk labels */ |
2457 vdev_scrub_stat_update(rvd, scrub_type, B_FALSE); | |
1544 | 2458 spa_config_exit(spa, FTAG); |
789 | 2459 |
2460 mutex_enter(&spa->spa_scrub_lock); | |
2461 spa->spa_scrub_errors = 0; | |
2462 spa->spa_scrub_active = 1; | |
1544 | 2463 ASSERT(spa->spa_scrub_inflight == 0); |
789 | 2464 |
2465 while (!spa->spa_scrub_stop) { | |
2466 CALLB_CPR_SAFE_BEGIN(&cprinfo); | |
1544 | 2467 while (spa->spa_scrub_suspended) { |
789 | 2468 spa->spa_scrub_active = 0; |
2469 cv_broadcast(&spa->spa_scrub_cv); | |
2470 cv_wait(&spa->spa_scrub_cv, &spa->spa_scrub_lock); | |
2471 spa->spa_scrub_active = 1; | |
2472 } | |
2473 CALLB_CPR_SAFE_END(&cprinfo, &spa->spa_scrub_lock); | |
2474 | |
2475 if (spa->spa_scrub_restart_txg != 0) | |
2476 break; | |
2477 | |
2478 mutex_exit(&spa->spa_scrub_lock); | |
2479 error = traverse_more(th); | |
2480 mutex_enter(&spa->spa_scrub_lock); | |
2481 if (error != EAGAIN) | |
2482 break; | |
2483 } | |
2484 | |
2485 while (spa->spa_scrub_inflight) | |
2486 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); | |
2487 | |
1601
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2488 spa->spa_scrub_active = 0; |
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2489 cv_broadcast(&spa->spa_scrub_cv); |
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2490 |
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2491 mutex_exit(&spa->spa_scrub_lock); |
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2492 |
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2493 spa_config_enter(spa, RW_WRITER, FTAG); |
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2494 |
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2495 mutex_enter(&spa->spa_scrub_lock); |
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2496 |
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2497 /* |
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2498 * Note: we check spa_scrub_restart_txg under both spa_scrub_lock |
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2499 * AND the spa config lock to synchronize with any config changes |
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2500 * that revise the DTLs under spa_vdev_enter() / spa_vdev_exit(). |
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2501 */ |
789 | 2502 if (spa->spa_scrub_restart_txg != 0) |
2503 error = ERESTART; | |
2504 | |
1544 | 2505 if (spa->spa_scrub_stop) |
2506 error = EINTR; | |
2507 | |
789 | 2508 /* |
1544 | 2509 * Even if there were uncorrectable errors, we consider the scrub |
2510 * completed. The downside is that if there is a transient error during | |
2511 * a resilver, we won't resilver the data properly to the target. But | |
2512 * if the damage is permanent (more likely) we will resilver forever, | |
2513 * which isn't really acceptable. Since there is enough information for | |
2514 * the user to know what has failed and why, this seems like a more | |
2515 * tractable approach. | |
789 | 2516 */ |
1544 | 2517 complete = (error == 0); |
789 | 2518 |
1544 | 2519 dprintf("end %s to maxtxg=%llu %s, traverse=%d, %llu errors, stop=%u\n", |
2520 scrub_type == POOL_SCRUB_RESILVER ? "resilver" : "scrub", | |
789 | 2521 spa->spa_scrub_maxtxg, complete ? "done" : "FAILED", |
2522 error, spa->spa_scrub_errors, spa->spa_scrub_stop); | |
2523 | |
2524 mutex_exit(&spa->spa_scrub_lock); | |
2525 | |
2526 /* | |
2527 * If the scrub/resilver completed, update all DTLs to reflect this. | |
2528 * Whether it succeeded or not, vacate all temporary scrub DTLs. | |
2529 */ | |
2530 vdev_dtl_reassess(rvd, spa_last_synced_txg(spa) + 1, | |
2531 complete ? spa->spa_scrub_maxtxg : 0, B_TRUE); | |
2532 vdev_scrub_stat_update(rvd, POOL_SCRUB_NONE, complete); | |
1544 | 2533 spa_errlog_rotate(spa); |
1601
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2534 |
4451 | 2535 if (scrub_type == POOL_SCRUB_RESILVER && complete) |
2536 spa_event_notify(spa, NULL, ESC_ZFS_RESILVER_FINISH); | |
2537 | |
1544 | 2538 spa_config_exit(spa, FTAG); |
789 | 2539 |
2540 mutex_enter(&spa->spa_scrub_lock); | |
2541 | |
1544 | 2542 /* |
2543 * We may have finished replacing a device. | |
2544 * Let the async thread assess this and handle the detach. | |
2545 */ | |
4451 | 2546 spa_async_request(spa, SPA_ASYNC_RESILVER_DONE); |
789 | 2547 |
2548 /* | |
2549 * If we were told to restart, our final act is to start a new scrub. | |
2550 */ | |
2551 if (error == ERESTART) | |
1544 | 2552 spa_async_request(spa, scrub_type == POOL_SCRUB_RESILVER ? |
2553 SPA_ASYNC_RESILVER : SPA_ASYNC_SCRUB); | |
789 | 2554 |
1544 | 2555 spa->spa_scrub_type = POOL_SCRUB_NONE; |
2556 spa->spa_scrub_active = 0; | |
2557 spa->spa_scrub_thread = NULL; | |
2558 cv_broadcast(&spa->spa_scrub_cv); | |
789 | 2559 CALLB_CPR_EXIT(&cprinfo); /* drops &spa->spa_scrub_lock */ |
2560 thread_exit(); | |
2561 } | |
2562 | |
2563 void | |
2564 spa_scrub_suspend(spa_t *spa) | |
2565 { | |
2566 mutex_enter(&spa->spa_scrub_lock); | |
1544 | 2567 spa->spa_scrub_suspended++; |
789 | 2568 while (spa->spa_scrub_active) { |
2569 cv_broadcast(&spa->spa_scrub_cv); | |
2570 cv_wait(&spa->spa_scrub_cv, &spa->spa_scrub_lock); | |
2571 } | |
2572 while (spa->spa_scrub_inflight) | |
2573 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); | |
2574 mutex_exit(&spa->spa_scrub_lock); | |
2575 } | |
2576 | |
2577 void | |
2578 spa_scrub_resume(spa_t *spa) | |
2579 { | |
2580 mutex_enter(&spa->spa_scrub_lock); | |
1544 | 2581 ASSERT(spa->spa_scrub_suspended != 0); |
2582 if (--spa->spa_scrub_suspended == 0) | |
789 | 2583 cv_broadcast(&spa->spa_scrub_cv); |
2584 mutex_exit(&spa->spa_scrub_lock); | |
2585 } | |
2586 | |
2587 void | |
2588 spa_scrub_restart(spa_t *spa, uint64_t txg) | |
2589 { | |
2590 /* | |
2591 * Something happened (e.g. snapshot create/delete) that means | |
2592 * we must restart any in-progress scrubs. The itinerary will | |
2593 * fix this properly. | |
2594 */ | |
2595 mutex_enter(&spa->spa_scrub_lock); | |
2596 spa->spa_scrub_restart_txg = txg; | |
2597 mutex_exit(&spa->spa_scrub_lock); | |
2598 } | |
2599 | |
1544 | 2600 int |
2601 spa_scrub(spa_t *spa, pool_scrub_type_t type, boolean_t force) | |
789 | 2602 { |
2603 space_seg_t *ss; | |
2604 uint64_t mintxg, maxtxg; | |
2605 vdev_t *rvd = spa->spa_root_vdev; | |
2606 | |
2607 if ((uint_t)type >= POOL_SCRUB_TYPES) | |
2608 return (ENOTSUP); | |
2609 | |
1544 | 2610 mutex_enter(&spa->spa_scrub_lock); |
2611 | |
789 | 2612 /* |
2613 * If there's a scrub or resilver already in progress, stop it. | |
2614 */ | |
2615 while (spa->spa_scrub_thread != NULL) { | |
2616 /* | |
2617 * Don't stop a resilver unless forced. | |
2618 */ | |
1544 | 2619 if (spa->spa_scrub_type == POOL_SCRUB_RESILVER && !force) { |
2620 mutex_exit(&spa->spa_scrub_lock); | |
789 | 2621 return (EBUSY); |
1544 | 2622 } |
789 | 2623 spa->spa_scrub_stop = 1; |
2624 cv_broadcast(&spa->spa_scrub_cv); | |
2625 cv_wait(&spa->spa_scrub_cv, &spa->spa_scrub_lock); | |
2626 } | |
2627 | |
2628 /* | |
2629 * Terminate the previous traverse. | |
2630 */ | |
2631 if (spa->spa_scrub_th != NULL) { | |
2632 traverse_fini(spa->spa_scrub_th); | |
2633 spa->spa_scrub_th = NULL; | |
2634 } | |
2635 | |
1544 | 2636 if (rvd == NULL) { |
2637 ASSERT(spa->spa_scrub_stop == 0); | |
2638 ASSERT(spa->spa_scrub_type == type); | |
2639 ASSERT(spa->spa_scrub_restart_txg == 0); | |
2640 mutex_exit(&spa->spa_scrub_lock); | |
2641 return (0); | |
2642 } | |
789 | 2643 |
2644 mintxg = TXG_INITIAL - 1; | |
2645 maxtxg = spa_last_synced_txg(spa) + 1; | |
2646 | |
1544 | 2647 mutex_enter(&rvd->vdev_dtl_lock); |
789 | 2648 |
1544 | 2649 if (rvd->vdev_dtl_map.sm_space == 0) { |
2650 /* | |
2651 * The pool-wide DTL is empty. | |
1732 | 2652 * If this is a resilver, there's nothing to do except |
2653 * check whether any in-progress replacements have completed. | |
1544 | 2654 */ |
1732 | 2655 if (type == POOL_SCRUB_RESILVER) { |
1544 | 2656 type = POOL_SCRUB_NONE; |
4451 | 2657 spa_async_request(spa, SPA_ASYNC_RESILVER_DONE); |
1732 | 2658 } |
1544 | 2659 } else { |
2660 /* | |
2661 * The pool-wide DTL is non-empty. | |
2662 * If this is a normal scrub, upgrade to a resilver instead. | |
2663 */ | |
2664 if (type == POOL_SCRUB_EVERYTHING) | |
2665 type = POOL_SCRUB_RESILVER; | |
2666 } | |
789 | 2667 |
1544 | 2668 if (type == POOL_SCRUB_RESILVER) { |
789 | 2669 /* |
2670 * Determine the resilvering boundaries. | |
2671 * | |
2672 * Note: (mintxg, maxtxg) is an open interval, | |
2673 * i.e. mintxg and maxtxg themselves are not included. | |
2674 * | |
2675 * Note: for maxtxg, we MIN with spa_last_synced_txg(spa) + 1 | |
2676 * so we don't claim to resilver a txg that's still changing. | |
2677 */ | |
2678 ss = avl_first(&rvd->vdev_dtl_map.sm_root); | |
1544 | 2679 mintxg = ss->ss_start - 1; |
789 | 2680 ss = avl_last(&rvd->vdev_dtl_map.sm_root); |
1544 | 2681 maxtxg = MIN(ss->ss_end, maxtxg); |
4451 | 2682 |
2683 spa_event_notify(spa, NULL, ESC_ZFS_RESILVER_START); | |
789 | 2684 } |
2685 | |
1544 | 2686 mutex_exit(&rvd->vdev_dtl_lock); |
2687 | |
2688 spa->spa_scrub_stop = 0; | |
2689 spa->spa_scrub_type = type; | |
2690 spa->spa_scrub_restart_txg = 0; | |
2691 | |
2692 if (type != POOL_SCRUB_NONE) { | |
2693 spa->spa_scrub_mintxg = mintxg; | |
789 | 2694 spa->spa_scrub_maxtxg = maxtxg; |
2695 spa->spa_scrub_th = traverse_init(spa, spa_scrub_cb, NULL, | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2696 ADVANCE_PRE | ADVANCE_PRUNE | ADVANCE_ZIL, |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2697 ZIO_FLAG_CANFAIL); |
789 | 2698 traverse_add_pool(spa->spa_scrub_th, mintxg, maxtxg); |
2699 spa->spa_scrub_thread = thread_create(NULL, 0, | |
2700 spa_scrub_thread, spa, 0, &p0, TS_RUN, minclsyspri); | |
2701 } | |
2702 | |
1544 | 2703 mutex_exit(&spa->spa_scrub_lock); |
2704 | |
789 | 2705 return (0); |
2706 } | |
2707 | |
1544 | 2708 /* |
2709 * ========================================================================== | |
2710 * SPA async task processing | |
2711 * ========================================================================== | |
2712 */ | |
2713 | |
2714 static void | |
4451 | 2715 spa_async_remove(spa_t *spa, vdev_t *vd) |
789 | 2716 { |
1544 | 2717 vdev_t *tvd; |
2718 int c; | |
2719 | |
4451 | 2720 for (c = 0; c < vd->vdev_children; c++) { |
2721 tvd = vd->vdev_child[c]; | |
2722 if (tvd->vdev_remove_wanted) { | |
2723 tvd->vdev_remove_wanted = 0; | |
2724 vdev_set_state(tvd, B_FALSE, VDEV_STATE_REMOVED, | |
2725 VDEV_AUX_NONE); | |
2726 vdev_clear(spa, tvd); | |
2727 vdev_config_dirty(tvd->vdev_top); | |
1544 | 2728 } |
4451 | 2729 spa_async_remove(spa, tvd); |
1544 | 2730 } |
2731 } | |
2732 | |
2733 static void | |
2734 spa_async_thread(spa_t *spa) | |
2735 { | |
2736 int tasks; | |
4451 | 2737 uint64_t txg; |
1544 | 2738 |
2739 ASSERT(spa->spa_sync_on); | |
789 | 2740 |
1544 | 2741 mutex_enter(&spa->spa_async_lock); |
2742 tasks = spa->spa_async_tasks; | |
2743 spa->spa_async_tasks = 0; | |
2744 mutex_exit(&spa->spa_async_lock); | |
2745 | |
2746 /* | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2747 * See if the config needs to be updated. |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2748 */ |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2749 if (tasks & SPA_ASYNC_CONFIG_UPDATE) { |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2750 mutex_enter(&spa_namespace_lock); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2751 spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2752 mutex_exit(&spa_namespace_lock); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2753 } |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2754 |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2755 /* |
4451 | 2756 * See if any devices need to be marked REMOVED. |
1544 | 2757 */ |
4451 | 2758 if (tasks & SPA_ASYNC_REMOVE) { |
2759 txg = spa_vdev_enter(spa); | |
2760 spa_async_remove(spa, spa->spa_root_vdev); | |
2761 (void) spa_vdev_exit(spa, NULL, txg, 0); | |
2762 } | |
1544 | 2763 |
2764 /* | |
2765 * If any devices are done replacing, detach them. | |
2766 */ | |
4451 | 2767 if (tasks & SPA_ASYNC_RESILVER_DONE) |
2768 spa_vdev_resilver_done(spa); | |
789 | 2769 |
1544 | 2770 /* |
4451 | 2771 * Kick off a scrub. When starting a RESILVER scrub (or an EVERYTHING |
2772 * scrub which can become a resilver), we need to hold | |
2773 * spa_namespace_lock() because the sysevent we post via | |
2774 * spa_event_notify() needs to get the name of the pool. | |
1544 | 2775 */ |
4451 | 2776 if (tasks & SPA_ASYNC_SCRUB) { |
2777 mutex_enter(&spa_namespace_lock); | |
1544 | 2778 VERIFY(spa_scrub(spa, POOL_SCRUB_EVERYTHING, B_TRUE) == 0); |
4451 | 2779 mutex_exit(&spa_namespace_lock); |
2780 } | |
1544 | 2781 |
2782 /* | |
2783 * Kick off a resilver. | |
2784 */ | |
4451 | 2785 if (tasks & SPA_ASYNC_RESILVER) { |
2786 mutex_enter(&spa_namespace_lock); | |
1544 | 2787 VERIFY(spa_scrub(spa, POOL_SCRUB_RESILVER, B_TRUE) == 0); |
4451 | 2788 mutex_exit(&spa_namespace_lock); |
2789 } | |
1544 | 2790 |
2791 /* | |
2792 * Let the world know that we're done. | |
2793 */ | |
2794 mutex_enter(&spa->spa_async_lock); | |
2795 spa->spa_async_thread = NULL; | |
2796 cv_broadcast(&spa->spa_async_cv); | |
2797 mutex_exit(&spa->spa_async_lock); | |
2798 thread_exit(); | |
2799 } | |
2800 | |
2801 void | |
2802 spa_async_suspend(spa_t *spa) | |
2803 { | |
2804 mutex_enter(&spa->spa_async_lock); | |
2805 spa->spa_async_suspended++; | |
2806 while (spa->spa_async_thread != NULL) | |
2807 cv_wait(&spa->spa_async_cv, &spa->spa_async_lock); | |
2808 mutex_exit(&spa->spa_async_lock); | |
2809 } | |
2810 | |
2811 void | |
2812 spa_async_resume(spa_t *spa) | |
2813 { | |
2814 mutex_enter(&spa->spa_async_lock); | |
2815 ASSERT(spa->spa_async_suspended != 0); | |
2816 spa->spa_async_suspended--; | |
2817 mutex_exit(&spa->spa_async_lock); | |
2818 } | |
2819 | |
2820 static void | |
2821 spa_async_dispatch(spa_t *spa) | |
2822 { | |
2823 mutex_enter(&spa->spa_async_lock); | |
2824 if (spa->spa_async_tasks && !spa->spa_async_suspended && | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2825 spa->spa_async_thread == NULL && |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2826 rootdir != NULL && !vn_is_readonly(rootdir)) |
1544 | 2827 spa->spa_async_thread = thread_create(NULL, 0, |
2828 spa_async_thread, spa, 0, &p0, TS_RUN, maxclsyspri); | |
2829 mutex_exit(&spa->spa_async_lock); | |
2830 } | |
2831 | |
2832 void | |
2833 spa_async_request(spa_t *spa, int task) | |
2834 { | |
2835 mutex_enter(&spa->spa_async_lock); | |
2836 spa->spa_async_tasks |= task; | |
2837 mutex_exit(&spa->spa_async_lock); | |
789 | 2838 } |
2839 | |
2840 /* | |
2841 * ========================================================================== | |
2842 * SPA syncing routines | |
2843 * ========================================================================== | |
2844 */ | |
2845 | |
2846 static void | |
2847 spa_sync_deferred_frees(spa_t *spa, uint64_t txg) | |
2848 { | |
2849 bplist_t *bpl = &spa->spa_sync_bplist; | |
2850 dmu_tx_t *tx; | |
2851 blkptr_t blk; | |
2852 uint64_t itor = 0; | |
2853 zio_t *zio; | |
2854 int error; | |
2855 uint8_t c = 1; | |
2856 | |
2857 zio = zio_root(spa, NULL, NULL, ZIO_FLAG_CONFIG_HELD); | |
2858 | |
2859 while (bplist_iterate(bpl, &itor, &blk) == 0) | |
2860 zio_nowait(zio_free(zio, spa, txg, &blk, NULL, NULL)); | |
2861 | |
2862 error = zio_wait(zio); | |
2863 ASSERT3U(error, ==, 0); | |
2864 | |
2865 tx = dmu_tx_create_assigned(spa->spa_dsl_pool, txg); | |
2866 bplist_vacate(bpl, tx); | |
2867 | |
2868 /* | |
2869 * Pre-dirty the first block so we sync to convergence faster. | |
2870 * (Usually only the first block is needed.) | |
2871 */ | |
2872 dmu_write(spa->spa_meta_objset, spa->spa_sync_bplist_obj, 0, 1, &c, tx); | |
2873 dmu_tx_commit(tx); | |
2874 } | |
2875 | |
2876 static void | |
2082 | 2877 spa_sync_nvlist(spa_t *spa, uint64_t obj, nvlist_t *nv, dmu_tx_t *tx) |
2878 { | |
2879 char *packed = NULL; | |
2880 size_t nvsize = 0; | |
2881 dmu_buf_t *db; | |
2882 | |
2883 VERIFY(nvlist_size(nv, &nvsize, NV_ENCODE_XDR) == 0); | |
2884 | |
2885 packed = kmem_alloc(nvsize, KM_SLEEP); | |
2886 | |
2887 VERIFY(nvlist_pack(nv, &packed, &nvsize, NV_ENCODE_XDR, | |
2888 KM_SLEEP) == 0); | |
2889 | |
2890 dmu_write(spa->spa_meta_objset, obj, 0, nvsize, packed, tx); | |
2891 | |
2892 kmem_free(packed, nvsize); | |
2893 | |
2894 VERIFY(0 == dmu_bonus_hold(spa->spa_meta_objset, obj, FTAG, &db)); | |
2895 dmu_buf_will_dirty(db, tx); | |
2896 *(uint64_t *)db->db_data = nvsize; | |
2897 dmu_buf_rele(db, FTAG); | |
2898 } | |
2899 | |
2900 static void | |
2901 spa_sync_spares(spa_t *spa, dmu_tx_t *tx) | |
2902 { | |
2903 nvlist_t *nvroot; | |
2904 nvlist_t **spares; | |
2905 int i; | |
2906 | |
2907 if (!spa->spa_sync_spares) | |
2908 return; | |
2909 | |
2910 /* | |
2911 * Update the MOS nvlist describing the list of available spares. | |
2912 * spa_validate_spares() will have already made sure this nvlist is | |
4451 | 2913 * valid and the vdevs are labeled appropriately. |
2082 | 2914 */ |
2915 if (spa->spa_spares_object == 0) { | |
2916 spa->spa_spares_object = dmu_object_alloc(spa->spa_meta_objset, | |
2917 DMU_OT_PACKED_NVLIST, 1 << 14, | |
2918 DMU_OT_PACKED_NVLIST_SIZE, sizeof (uint64_t), tx); | |
2919 VERIFY(zap_update(spa->spa_meta_objset, | |
2920 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SPARES, | |
2921 sizeof (uint64_t), 1, &spa->spa_spares_object, tx) == 0); | |
2922 } | |
2923 | |
2924 VERIFY(nvlist_alloc(&nvroot, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
2925 if (spa->spa_nspares == 0) { | |
2926 VERIFY(nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
2927 NULL, 0) == 0); | |
2928 } else { | |
2929 spares = kmem_alloc(spa->spa_nspares * sizeof (void *), | |
2930 KM_SLEEP); | |
2931 for (i = 0; i < spa->spa_nspares; i++) | |
2932 spares[i] = vdev_config_generate(spa, | |
2933 spa->spa_spares[i], B_FALSE, B_TRUE); | |
2934 VERIFY(nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
2935 spares, spa->spa_nspares) == 0); | |
2936 for (i = 0; i < spa->spa_nspares; i++) | |
2937 nvlist_free(spares[i]); | |
2938 kmem_free(spares, spa->spa_nspares * sizeof (void *)); | |
2939 } | |
2940 | |
2941 spa_sync_nvlist(spa, spa->spa_spares_object, nvroot, tx); | |
2926 | 2942 nvlist_free(nvroot); |
2082 | 2943 |
2944 spa->spa_sync_spares = B_FALSE; | |
2945 } | |
2946 | |
2947 static void | |
789 | 2948 spa_sync_config_object(spa_t *spa, dmu_tx_t *tx) |
2949 { | |
2950 nvlist_t *config; | |
2951 | |
2952 if (list_is_empty(&spa->spa_dirty_list)) | |
2953 return; | |
2954 | |
2955 config = spa_config_generate(spa, NULL, dmu_tx_get_txg(tx), B_FALSE); | |
2956 | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2957 if (spa->spa_config_syncing) |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2958 nvlist_free(spa->spa_config_syncing); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2959 spa->spa_config_syncing = config; |
789 | 2960 |
2082 | 2961 spa_sync_nvlist(spa, spa->spa_config_object, config, tx); |
789 | 2962 } |
2963 | |
3912 | 2964 static void |
4543 | 2965 spa_sync_props(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) |
3912 | 2966 { |
2967 spa_t *spa = arg1; | |
2968 nvlist_t *nvp = arg2; | |
2969 nvpair_t *nvpair; | |
2970 objset_t *mos = spa->spa_meta_objset; | |
2971 uint64_t zapobj; | |
4451 | 2972 uint64_t intval; |
3912 | 2973 |
2974 mutex_enter(&spa->spa_props_lock); | |
2975 if (spa->spa_pool_props_object == 0) { | |
2976 zapobj = zap_create(mos, DMU_OT_POOL_PROPS, DMU_OT_NONE, 0, tx); | |
2977 VERIFY(zapobj > 0); | |
2978 | |
2979 spa->spa_pool_props_object = zapobj; | |
2980 | |
2981 VERIFY(zap_update(mos, DMU_POOL_DIRECTORY_OBJECT, | |
2982 DMU_POOL_PROPS, 8, 1, | |
2983 &spa->spa_pool_props_object, tx) == 0); | |
2984 } | |
2985 mutex_exit(&spa->spa_props_lock); | |
2986 | |
2987 nvpair = NULL; | |
2988 while ((nvpair = nvlist_next_nvpair(nvp, nvpair))) { | |
2989 switch (zpool_name_to_prop(nvpair_name(nvpair))) { | |
4543 | 2990 case ZPOOL_PROP_DELEGATION: |
2991 VERIFY(nvlist_lookup_uint64(nvp, | |
2992 nvpair_name(nvpair), &intval) == 0); | |
2993 VERIFY(zap_update(mos, | |
2994 spa->spa_pool_props_object, | |
2995 nvpair_name(nvpair), 8, 1, | |
2996 &intval, tx) == 0); | |
2997 spa->spa_delegation = intval; | |
2998 break; | |
4451 | 2999 case ZPOOL_PROP_BOOTFS: |
3912 | 3000 VERIFY(nvlist_lookup_uint64(nvp, |
3001 nvpair_name(nvpair), &spa->spa_bootfs) == 0); | |
4543 | 3002 intval = spa->spa_bootfs; |
3912 | 3003 VERIFY(zap_update(mos, |
3004 spa->spa_pool_props_object, | |
4451 | 3005 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), 8, 1, |
4543 | 3006 &intval, tx) == 0); |
3912 | 3007 break; |
4451 | 3008 |
3009 case ZPOOL_PROP_AUTOREPLACE: | |
3010 VERIFY(nvlist_lookup_uint64(nvp, | |
3011 nvpair_name(nvpair), &intval) == 0); | |
3012 VERIFY(zap_update(mos, | |
3013 spa->spa_pool_props_object, | |
3014 zpool_prop_to_name(ZPOOL_PROP_AUTOREPLACE), 8, 1, | |
3015 &intval, tx) == 0); | |
3016 break; | |
3912 | 3017 } |
4543 | 3018 spa_history_internal_log(LOG_POOL_PROPSET, |
3019 spa, tx, cr, "%s %lld %s", | |
3020 nvpair_name(nvpair), intval, | |
3021 spa->spa_name); | |
3912 | 3022 } |
3023 } | |
3024 | |
789 | 3025 /* |
3026 * Sync the specified transaction group. New blocks may be dirtied as | |
3027 * part of the process, so we iterate until it converges. | |
3028 */ | |
3029 void | |
3030 spa_sync(spa_t *spa, uint64_t txg) | |
3031 { | |
3032 dsl_pool_t *dp = spa->spa_dsl_pool; | |
3033 objset_t *mos = spa->spa_meta_objset; | |
3034 bplist_t *bpl = &spa->spa_sync_bplist; | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3035 vdev_t *rvd = spa->spa_root_vdev; |
789 | 3036 vdev_t *vd; |
3037 dmu_tx_t *tx; | |
3038 int dirty_vdevs; | |
3039 | |
3040 /* | |
3041 * Lock out configuration changes. | |
3042 */ | |
1544 | 3043 spa_config_enter(spa, RW_READER, FTAG); |
789 | 3044 |
3045 spa->spa_syncing_txg = txg; | |
3046 spa->spa_sync_pass = 0; | |
3047 | |
1544 | 3048 VERIFY(0 == bplist_open(bpl, mos, spa->spa_sync_bplist_obj)); |
789 | 3049 |
2082 | 3050 tx = dmu_tx_create_assigned(dp, txg); |
3051 | |
3052 /* | |
4577 | 3053 * If we are upgrading to SPA_VERSION_RAIDZ_DEFLATE this txg, |
2082 | 3054 * set spa_deflate if we have no raid-z vdevs. |
3055 */ | |
4577 | 3056 if (spa->spa_ubsync.ub_version < SPA_VERSION_RAIDZ_DEFLATE && |
3057 spa->spa_uberblock.ub_version >= SPA_VERSION_RAIDZ_DEFLATE) { | |
2082 | 3058 int i; |
3059 | |
3060 for (i = 0; i < rvd->vdev_children; i++) { | |
3061 vd = rvd->vdev_child[i]; | |
3062 if (vd->vdev_deflate_ratio != SPA_MINBLOCKSIZE) | |
3063 break; | |
3064 } | |
3065 if (i == rvd->vdev_children) { | |
3066 spa->spa_deflate = TRUE; | |
3067 VERIFY(0 == zap_add(spa->spa_meta_objset, | |
3068 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
3069 sizeof (uint64_t), 1, &spa->spa_deflate, tx)); | |
3070 } | |
3071 } | |
3072 | |
789 | 3073 /* |
3074 * If anything has changed in this txg, push the deferred frees | |
3075 * from the previous txg. If not, leave them alone so that we | |
3076 * don't generate work on an otherwise idle system. | |
3077 */ | |
3078 if (!txg_list_empty(&dp->dp_dirty_datasets, txg) || | |
2329
e640bebc73b3
6446569 deferred list is hooked on flintstone vitamins
ek110237
parents:
2199
diff
changeset
|
3079 !txg_list_empty(&dp->dp_dirty_dirs, txg) || |
e640bebc73b3
6446569 deferred list is hooked on flintstone vitamins
ek110237
parents:
2199
diff
changeset
|
3080 !txg_list_empty(&dp->dp_sync_tasks, txg)) |
789 | 3081 spa_sync_deferred_frees(spa, txg); |
3082 | |
3083 /* | |
3084 * Iterate to convergence. | |
3085 */ | |
3086 do { | |
3087 spa->spa_sync_pass++; | |
3088 | |
3089 spa_sync_config_object(spa, tx); | |
2082 | 3090 spa_sync_spares(spa, tx); |
1544 | 3091 spa_errlog_sync(spa, txg); |
789 | 3092 dsl_pool_sync(dp, txg); |
3093 | |
3094 dirty_vdevs = 0; | |
3095 while (vd = txg_list_remove(&spa->spa_vdev_txg_list, txg)) { | |
3096 vdev_sync(vd, txg); | |
3097 dirty_vdevs++; | |
3098 } | |
3099 | |
3100 bplist_sync(bpl, tx); | |
3101 } while (dirty_vdevs); | |
3102 | |
3103 bplist_close(bpl); | |
3104 | |
3105 dprintf("txg %llu passes %d\n", txg, spa->spa_sync_pass); | |
3106 | |
3107 /* | |
3108 * Rewrite the vdev configuration (which includes the uberblock) | |
3109 * to commit the transaction group. | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3110 * |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3111 * If there are any dirty vdevs, sync the uberblock to all vdevs. |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3112 * Otherwise, pick a random top-level vdev that's known to be |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3113 * visible in the config cache (see spa_vdev_add() for details). |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3114 * If the write fails, try the next vdev until we're tried them all. |
789 | 3115 */ |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3116 if (!list_is_empty(&spa->spa_dirty_list)) { |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3117 VERIFY(vdev_config_sync(rvd, txg) == 0); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3118 } else { |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3119 int children = rvd->vdev_children; |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3120 int c0 = spa_get_random(children); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3121 int c; |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3122 |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3123 for (c = 0; c < children; c++) { |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3124 vd = rvd->vdev_child[(c0 + c) % children]; |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3125 if (vd->vdev_ms_array == 0) |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3126 continue; |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3127 if (vdev_config_sync(vd, txg) == 0) |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3128 break; |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3129 } |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3130 if (c == children) |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3131 VERIFY(vdev_config_sync(rvd, txg) == 0); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3132 } |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3133 |
2082 | 3134 dmu_tx_commit(tx); |
3135 | |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3136 /* |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3137 * Clear the dirty config list. |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3138 */ |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3139 while ((vd = list_head(&spa->spa_dirty_list)) != NULL) |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3140 vdev_config_clean(vd); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3141 |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3142 /* |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3143 * Now that the new config has synced transactionally, |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3144 * let it become visible to the config cache. |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3145 */ |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3146 if (spa->spa_config_syncing != NULL) { |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3147 spa_config_set(spa, spa->spa_config_syncing); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3148 spa->spa_config_txg = txg; |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3149 spa->spa_config_syncing = NULL; |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
3150 } |
789 | 3151 |
3152 /* | |
3153 * Make a stable copy of the fully synced uberblock. | |
3154 * We use this as the root for pool traversals. | |
3155 */ | |
3156 spa->spa_traverse_wanted = 1; /* tells traverse_more() to stop */ | |
3157 | |
3158 spa_scrub_suspend(spa); /* stop scrubbing and finish I/Os */ | |
3159 | |
3160 rw_enter(&spa->spa_traverse_lock, RW_WRITER); | |
3161 spa->spa_traverse_wanted = 0; | |
3162 spa->spa_ubsync = spa->spa_uberblock; | |
3163 rw_exit(&spa->spa_traverse_lock); | |
3164 | |
3165 spa_scrub_resume(spa); /* resume scrub with new ubsync */ | |
3166 | |
3167 /* | |
3168 * Clean up the ZIL records for the synced txg. | |
3169 */ | |
3170 dsl_pool_zil_clean(dp); | |
3171 | |
3172 /* | |
3173 * Update usable space statistics. | |
3174 */ | |
3175 while (vd = txg_list_remove(&spa->spa_vdev_txg_list, TXG_CLEAN(txg))) | |
3176 vdev_sync_done(vd, txg); | |
3177 | |
3178 /* | |
3179 * It had better be the case that we didn't dirty anything | |
2082 | 3180 * since vdev_config_sync(). |
789 | 3181 */ |
3182 ASSERT(txg_list_empty(&dp->dp_dirty_datasets, txg)); | |
3183 ASSERT(txg_list_empty(&dp->dp_dirty_dirs, txg)); | |
3184 ASSERT(txg_list_empty(&spa->spa_vdev_txg_list, txg)); | |
3185 ASSERT(bpl->bpl_queue == NULL); | |
3186 | |
1544 | 3187 spa_config_exit(spa, FTAG); |
3188 | |
3189 /* | |
3190 * If any async tasks have been requested, kick them off. | |
3191 */ | |
3192 spa_async_dispatch(spa); | |
789 | 3193 } |
3194 | |
3195 /* | |
3196 * Sync all pools. We don't want to hold the namespace lock across these | |
3197 * operations, so we take a reference on the spa_t and drop the lock during the | |
3198 * sync. | |
3199 */ | |
3200 void | |
3201 spa_sync_allpools(void) | |
3202 { | |
3203 spa_t *spa = NULL; | |
3204 mutex_enter(&spa_namespace_lock); | |
3205 while ((spa = spa_next(spa)) != NULL) { | |
3206 if (spa_state(spa) != POOL_STATE_ACTIVE) | |
3207 continue; | |
3208 spa_open_ref(spa, FTAG); | |
3209 mutex_exit(&spa_namespace_lock); | |
3210 txg_wait_synced(spa_get_dsl(spa), 0); | |
3211 mutex_enter(&spa_namespace_lock); | |
3212 spa_close(spa, FTAG); | |
3213 } | |
3214 mutex_exit(&spa_namespace_lock); | |
3215 } | |
3216 | |
3217 /* | |
3218 * ========================================================================== | |
3219 * Miscellaneous routines | |
3220 * ========================================================================== | |
3221 */ | |
3222 | |
3223 /* | |
3224 * Remove all pools in the system. | |
3225 */ | |
3226 void | |
3227 spa_evict_all(void) | |
3228 { | |
3229 spa_t *spa; | |
3230 | |
3231 /* | |
3232 * Remove all cached state. All pools should be closed now, | |
3233 * so every spa in the AVL tree should be unreferenced. | |
3234 */ | |
3235 mutex_enter(&spa_namespace_lock); | |
3236 while ((spa = spa_next(NULL)) != NULL) { | |
3237 /* | |
1544 | 3238 * Stop async tasks. The async thread may need to detach |
3239 * a device that's been replaced, which requires grabbing | |
3240 * spa_namespace_lock, so we must drop it here. | |
789 | 3241 */ |
3242 spa_open_ref(spa, FTAG); | |
3243 mutex_exit(&spa_namespace_lock); | |
1544 | 3244 spa_async_suspend(spa); |
789 | 3245 VERIFY(spa_scrub(spa, POOL_SCRUB_NONE, B_TRUE) == 0); |
3246 mutex_enter(&spa_namespace_lock); | |
3247 spa_close(spa, FTAG); | |
3248 | |
3249 if (spa->spa_state != POOL_STATE_UNINITIALIZED) { | |
3250 spa_unload(spa); | |
3251 spa_deactivate(spa); | |
3252 } | |
3253 spa_remove(spa); | |
3254 } | |
3255 mutex_exit(&spa_namespace_lock); | |
3256 } | |
1544 | 3257 |
3258 vdev_t * | |
3259 spa_lookup_by_guid(spa_t *spa, uint64_t guid) | |
3260 { | |
3261 return (vdev_lookup_by_guid(spa->spa_root_vdev, guid)); | |
3262 } | |
1760 | 3263 |
3264 void | |
3265 spa_upgrade(spa_t *spa) | |
3266 { | |
3267 spa_config_enter(spa, RW_WRITER, FTAG); | |
3268 | |
3269 /* | |
3270 * This should only be called for a non-faulted pool, and since a | |
3271 * future version would result in an unopenable pool, this shouldn't be | |
3272 * possible. | |
3273 */ | |
4577 | 3274 ASSERT(spa->spa_uberblock.ub_version <= SPA_VERSION); |
3275 | |
3276 spa->spa_uberblock.ub_version = SPA_VERSION; | |
1760 | 3277 vdev_config_dirty(spa->spa_root_vdev); |
3278 | |
3279 spa_config_exit(spa, FTAG); | |
2082 | 3280 |
3281 txg_wait_synced(spa_get_dsl(spa), 0); | |
1760 | 3282 } |
2082 | 3283 |
3284 boolean_t | |
3285 spa_has_spare(spa_t *spa, uint64_t guid) | |
3286 { | |
3287 int i; | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
3288 uint64_t spareguid; |
2082 | 3289 |
3290 for (i = 0; i < spa->spa_nspares; i++) | |
3291 if (spa->spa_spares[i]->vdev_guid == guid) | |
3292 return (B_TRUE); | |
3293 | |
3377
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
3294 for (i = 0; i < spa->spa_pending_nspares; i++) { |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
3295 if (nvlist_lookup_uint64(spa->spa_pending_spares[i], |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
3296 ZPOOL_CONFIG_GUID, &spareguid) == 0 && |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
3297 spareguid == guid) |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
3298 return (B_TRUE); |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
3299 } |
a2fa338530c1
6393525 vdev_reopen() should verify that it's still the same device
eschrock
parents:
3290
diff
changeset
|
3300 |
2082 | 3301 return (B_FALSE); |
3302 } | |
3912 | 3303 |
3304 int | |
3305 spa_set_props(spa_t *spa, nvlist_t *nvp) | |
3306 { | |
3307 return (dsl_sync_task_do(spa_get_dsl(spa), NULL, spa_sync_props, | |
3308 spa, nvp, 3)); | |
3309 } | |
3310 | |
3311 int | |
3312 spa_get_props(spa_t *spa, nvlist_t **nvp) | |
3313 { | |
3314 zap_cursor_t zc; | |
3315 zap_attribute_t za; | |
3316 objset_t *mos = spa->spa_meta_objset; | |
3317 zfs_source_t src; | |
4451 | 3318 zpool_prop_t prop; |
3912 | 3319 nvlist_t *propval; |
3320 uint64_t value; | |
3321 int err; | |
3322 | |
3323 VERIFY(nvlist_alloc(nvp, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3324 | |
3325 mutex_enter(&spa->spa_props_lock); | |
3326 /* If no props object, then just return empty nvlist */ | |
3327 if (spa->spa_pool_props_object == 0) { | |
3328 mutex_exit(&spa->spa_props_lock); | |
3329 return (0); | |
3330 } | |
3331 | |
3332 for (zap_cursor_init(&zc, mos, spa->spa_pool_props_object); | |
3333 (err = zap_cursor_retrieve(&zc, &za)) == 0; | |
3334 zap_cursor_advance(&zc)) { | |
3335 | |
3336 if ((prop = zpool_name_to_prop(za.za_name)) == ZFS_PROP_INVAL) | |
3337 continue; | |
3338 | |
3339 VERIFY(nvlist_alloc(&propval, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
3340 switch (za.za_integer_length) { | |
3341 case 8: | |
4451 | 3342 if (zpool_prop_default_numeric(prop) == |
3912 | 3343 za.za_first_integer) |
3344 src = ZFS_SRC_DEFAULT; | |
3345 else | |
3346 src = ZFS_SRC_LOCAL; | |
3347 value = za.za_first_integer; | |
3348 | |
4451 | 3349 if (prop == ZPOOL_PROP_BOOTFS) { |
3912 | 3350 dsl_pool_t *dp; |
3351 dsl_dataset_t *ds = NULL; | |
3352 char strval[MAXPATHLEN]; | |
3353 | |
3354 dp = spa_get_dsl(spa); | |
3355 rw_enter(&dp->dp_config_rwlock, RW_READER); | |
3356 if ((err = dsl_dataset_open_obj(dp, | |
3357 za.za_first_integer, NULL, DS_MODE_NONE, | |
3358 FTAG, &ds)) != 0) { | |
3359 rw_exit(&dp->dp_config_rwlock); | |
3360 break; | |
3361 } | |
3362 dsl_dataset_name(ds, strval); | |
3363 dsl_dataset_close(ds, DS_MODE_NONE, FTAG); | |
3364 rw_exit(&dp->dp_config_rwlock); | |
3365 | |
3366 VERIFY(nvlist_add_uint64(propval, | |
3367 ZFS_PROP_SOURCE, src) == 0); | |
3368 VERIFY(nvlist_add_string(propval, | |
3369 ZFS_PROP_VALUE, strval) == 0); | |
3370 } else { | |
3371 VERIFY(nvlist_add_uint64(propval, | |
3372 ZFS_PROP_SOURCE, src) == 0); | |
3373 VERIFY(nvlist_add_uint64(propval, | |
3374 ZFS_PROP_VALUE, value) == 0); | |
3375 } | |
3376 VERIFY(nvlist_add_nvlist(*nvp, za.za_name, | |
3377 propval) == 0); | |
3378 break; | |
3379 } | |
3380 nvlist_free(propval); | |
3381 } | |
3382 zap_cursor_fini(&zc); | |
3383 mutex_exit(&spa->spa_props_lock); | |
3384 if (err && err != ENOENT) { | |
3385 nvlist_free(*nvp); | |
3386 return (err); | |
3387 } | |
3388 | |
3389 return (0); | |
3390 } | |
3391 | |
3392 /* | |
3393 * If the bootfs property value is dsobj, clear it. | |
3394 */ | |
3395 void | |
3396 spa_clear_bootfs(spa_t *spa, uint64_t dsobj, dmu_tx_t *tx) | |
3397 { | |
3398 if (spa->spa_bootfs == dsobj && spa->spa_pool_props_object != 0) { | |
3399 VERIFY(zap_remove(spa->spa_meta_objset, | |
3400 spa->spa_pool_props_object, | |
4451 | 3401 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), tx) == 0); |
3912 | 3402 spa->spa_bootfs = 0; |
3403 } | |
3404 } | |
4451 | 3405 |
3406 /* | |
3407 * Post a sysevent corresponding to the given event. The 'name' must be one of | |
3408 * the event definitions in sys/sysevent/eventdefs.h. The payload will be | |
3409 * filled in from the spa and (optionally) the vdev. This doesn't do anything | |
3410 * in the userland libzpool, as we don't want consumers to misinterpret ztest | |
3411 * or zdb as real changes. | |
3412 */ | |
3413 void | |
3414 spa_event_notify(spa_t *spa, vdev_t *vd, const char *name) | |
3415 { | |
3416 #ifdef _KERNEL | |
3417 sysevent_t *ev; | |
3418 sysevent_attr_list_t *attr = NULL; | |
3419 sysevent_value_t value; | |
3420 sysevent_id_t eid; | |
3421 | |
3422 ev = sysevent_alloc(EC_ZFS, (char *)name, SUNW_KERN_PUB "zfs", | |
3423 SE_SLEEP); | |
3424 | |
3425 value.value_type = SE_DATA_TYPE_STRING; | |
3426 value.value.sv_string = spa_name(spa); | |
3427 if (sysevent_add_attr(&attr, ZFS_EV_POOL_NAME, &value, SE_SLEEP) != 0) | |
3428 goto done; | |
3429 | |
3430 value.value_type = SE_DATA_TYPE_UINT64; | |
3431 value.value.sv_uint64 = spa_guid(spa); | |
3432 if (sysevent_add_attr(&attr, ZFS_EV_POOL_GUID, &value, SE_SLEEP) != 0) | |
3433 goto done; | |
3434 | |
3435 if (vd) { | |
3436 value.value_type = SE_DATA_TYPE_UINT64; | |
3437 value.value.sv_uint64 = vd->vdev_guid; | |
3438 if (sysevent_add_attr(&attr, ZFS_EV_VDEV_GUID, &value, | |
3439 SE_SLEEP) != 0) | |
3440 goto done; | |
3441 | |
3442 if (vd->vdev_path) { | |
3443 value.value_type = SE_DATA_TYPE_STRING; | |
3444 value.value.sv_string = vd->vdev_path; | |
3445 if (sysevent_add_attr(&attr, ZFS_EV_VDEV_PATH, | |
3446 &value, SE_SLEEP) != 0) | |
3447 goto done; | |
3448 } | |
3449 } | |
3450 | |
3451 (void) log_sysevent(ev, SE_SLEEP, &eid); | |
3452 | |
3453 done: | |
3454 if (attr) | |
3455 sysevent_free_attr(attr); | |
3456 sysevent_free(ev); | |
3457 #endif | |
3458 } |