author | johansen |
Tue, 19 Dec 2006 23:13:06 -0800 | |
changeset 3290 | 256464cbb73c |
parent 2986 | c782fcf7a319 |
child 3377 | a2fa338530c1 |
permissions | -rw-r--r-- |
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 |
/* |
1354
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
23 |
* Copyright 2006 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> |
|
51 |
#include <sys/unique.h> |
|
52 |
#include <sys/dsl_pool.h> |
|
53 |
#include <sys/dsl_dir.h> |
|
54 |
#include <sys/dsl_prop.h> |
|
55 |
#include <sys/fs/zfs.h> |
|
56 |
#include <sys/callb.h> |
|
57 |
||
2986 | 58 |
int zio_taskq_threads = 8; |
59 |
||
789 | 60 |
/* |
61 |
* ========================================================================== |
|
62 |
* SPA state manipulation (open/create/destroy/import/export) |
|
63 |
* ========================================================================== |
|
64 |
*/ |
|
65 |
||
1544 | 66 |
static int |
67 |
spa_error_entry_compare(const void *a, const void *b) |
|
68 |
{ |
|
69 |
spa_error_entry_t *sa = (spa_error_entry_t *)a; |
|
70 |
spa_error_entry_t *sb = (spa_error_entry_t *)b; |
|
71 |
int ret; |
|
72 |
||
73 |
ret = bcmp(&sa->se_bookmark, &sb->se_bookmark, |
|
74 |
sizeof (zbookmark_t)); |
|
75 |
||
76 |
if (ret < 0) |
|
77 |
return (-1); |
|
78 |
else if (ret > 0) |
|
79 |
return (1); |
|
80 |
else |
|
81 |
return (0); |
|
82 |
} |
|
83 |
||
84 |
/* |
|
85 |
* Utility function which retrieves copies of the current logs and |
|
86 |
* re-initializes them in the process. |
|
87 |
*/ |
|
88 |
void |
|
89 |
spa_get_errlists(spa_t *spa, avl_tree_t *last, avl_tree_t *scrub) |
|
90 |
{ |
|
91 |
ASSERT(MUTEX_HELD(&spa->spa_errlist_lock)); |
|
92 |
||
93 |
bcopy(&spa->spa_errlist_last, last, sizeof (avl_tree_t)); |
|
94 |
bcopy(&spa->spa_errlist_scrub, scrub, sizeof (avl_tree_t)); |
|
95 |
||
96 |
avl_create(&spa->spa_errlist_scrub, |
|
97 |
spa_error_entry_compare, sizeof (spa_error_entry_t), |
|
98 |
offsetof(spa_error_entry_t, se_avl)); |
|
99 |
avl_create(&spa->spa_errlist_last, |
|
100 |
spa_error_entry_compare, sizeof (spa_error_entry_t), |
|
101 |
offsetof(spa_error_entry_t, se_avl)); |
|
102 |
} |
|
103 |
||
789 | 104 |
/* |
105 |
* Activate an uninitialized pool. |
|
106 |
*/ |
|
107 |
static void |
|
108 |
spa_activate(spa_t *spa) |
|
109 |
{ |
|
110 |
int t; |
|
111 |
||
112 |
ASSERT(spa->spa_state == POOL_STATE_UNINITIALIZED); |
|
113 |
||
114 |
spa->spa_state = POOL_STATE_ACTIVE; |
|
115 |
||
116 |
spa->spa_normal_class = metaslab_class_create(); |
|
117 |
||
118 |
for (t = 0; t < ZIO_TYPES; t++) { |
|
119 |
spa->spa_zio_issue_taskq[t] = taskq_create("spa_zio_issue", |
|
2986 | 120 |
zio_taskq_threads, maxclsyspri, 50, INT_MAX, |
789 | 121 |
TASKQ_PREPOPULATE); |
122 |
spa->spa_zio_intr_taskq[t] = taskq_create("spa_zio_intr", |
|
2986 | 123 |
zio_taskq_threads, maxclsyspri, 50, INT_MAX, |
789 | 124 |
TASKQ_PREPOPULATE); |
125 |
} |
|
126 |
||
127 |
rw_init(&spa->spa_traverse_lock, NULL, RW_DEFAULT, NULL); |
|
128 |
||
2856 | 129 |
mutex_init(&spa->spa_async_lock, NULL, MUTEX_DEFAULT, NULL); |
130 |
mutex_init(&spa->spa_config_cache_lock, NULL, MUTEX_DEFAULT, NULL); |
|
131 |
mutex_init(&spa->spa_scrub_lock, NULL, MUTEX_DEFAULT, NULL); |
|
132 |
mutex_init(&spa->spa_errlog_lock, NULL, MUTEX_DEFAULT, NULL); |
|
133 |
mutex_init(&spa->spa_errlist_lock, NULL, MUTEX_DEFAULT, NULL); |
|
134 |
mutex_init(&spa->spa_config_lock.scl_lock, NULL, MUTEX_DEFAULT, NULL); |
|
135 |
mutex_init(&spa->spa_sync_bplist.bpl_lock, NULL, MUTEX_DEFAULT, NULL); |
|
2926 | 136 |
mutex_init(&spa->spa_history_lock, NULL, MUTEX_DEFAULT, NULL); |
2856 | 137 |
|
789 | 138 |
list_create(&spa->spa_dirty_list, sizeof (vdev_t), |
139 |
offsetof(vdev_t, vdev_dirty_node)); |
|
140 |
||
141 |
txg_list_create(&spa->spa_vdev_txg_list, |
|
142 |
offsetof(struct vdev, vdev_txg_node)); |
|
1544 | 143 |
|
144 |
avl_create(&spa->spa_errlist_scrub, |
|
145 |
spa_error_entry_compare, sizeof (spa_error_entry_t), |
|
146 |
offsetof(spa_error_entry_t, se_avl)); |
|
147 |
avl_create(&spa->spa_errlist_last, |
|
148 |
spa_error_entry_compare, sizeof (spa_error_entry_t), |
|
149 |
offsetof(spa_error_entry_t, se_avl)); |
|
789 | 150 |
} |
151 |
||
152 |
/* |
|
153 |
* Opposite of spa_activate(). |
|
154 |
*/ |
|
155 |
static void |
|
156 |
spa_deactivate(spa_t *spa) |
|
157 |
{ |
|
158 |
int t; |
|
159 |
||
160 |
ASSERT(spa->spa_sync_on == B_FALSE); |
|
161 |
ASSERT(spa->spa_dsl_pool == NULL); |
|
162 |
ASSERT(spa->spa_root_vdev == NULL); |
|
163 |
||
164 |
ASSERT(spa->spa_state != POOL_STATE_UNINITIALIZED); |
|
165 |
||
166 |
txg_list_destroy(&spa->spa_vdev_txg_list); |
|
167 |
||
168 |
list_destroy(&spa->spa_dirty_list); |
|
169 |
||
170 |
rw_destroy(&spa->spa_traverse_lock); |
|
171 |
||
172 |
for (t = 0; t < ZIO_TYPES; t++) { |
|
173 |
taskq_destroy(spa->spa_zio_issue_taskq[t]); |
|
174 |
taskq_destroy(spa->spa_zio_intr_taskq[t]); |
|
175 |
spa->spa_zio_issue_taskq[t] = NULL; |
|
176 |
spa->spa_zio_intr_taskq[t] = NULL; |
|
177 |
} |
|
178 |
||
179 |
metaslab_class_destroy(spa->spa_normal_class); |
|
180 |
spa->spa_normal_class = NULL; |
|
181 |
||
1544 | 182 |
/* |
183 |
* If this was part of an import or the open otherwise failed, we may |
|
184 |
* still have errors left in the queues. Empty them just in case. |
|
185 |
*/ |
|
186 |
spa_errlog_drain(spa); |
|
187 |
||
188 |
avl_destroy(&spa->spa_errlist_scrub); |
|
189 |
avl_destroy(&spa->spa_errlist_last); |
|
190 |
||
789 | 191 |
spa->spa_state = POOL_STATE_UNINITIALIZED; |
192 |
} |
|
193 |
||
194 |
/* |
|
195 |
* Verify a pool configuration, and construct the vdev tree appropriately. This |
|
196 |
* will create all the necessary vdevs in the appropriate layout, with each vdev |
|
197 |
* in the CLOSED state. This will prep the pool before open/creation/import. |
|
198 |
* All vdev validation is done by the vdev_alloc() routine. |
|
199 |
*/ |
|
2082 | 200 |
static int |
201 |
spa_config_parse(spa_t *spa, vdev_t **vdp, nvlist_t *nv, vdev_t *parent, |
|
202 |
uint_t id, int atype) |
|
789 | 203 |
{ |
204 |
nvlist_t **child; |
|
205 |
uint_t c, children; |
|
2082 | 206 |
int error; |
207 |
||
208 |
if ((error = vdev_alloc(spa, vdp, nv, parent, id, atype)) != 0) |
|
209 |
return (error); |
|
210 |
||
211 |
if ((*vdp)->vdev_ops->vdev_op_leaf) |
|
212 |
return (0); |
|
789 | 213 |
|
214 |
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, |
|
215 |
&child, &children) != 0) { |
|
2082 | 216 |
vdev_free(*vdp); |
217 |
*vdp = NULL; |
|
218 |
return (EINVAL); |
|
789 | 219 |
} |
220 |
||
221 |
for (c = 0; c < children; c++) { |
|
2082 | 222 |
vdev_t *vd; |
223 |
if ((error = spa_config_parse(spa, &vd, child[c], *vdp, c, |
|
224 |
atype)) != 0) { |
|
225 |
vdev_free(*vdp); |
|
226 |
*vdp = NULL; |
|
227 |
return (error); |
|
789 | 228 |
} |
229 |
} |
|
230 |
||
2082 | 231 |
ASSERT(*vdp != NULL); |
232 |
||
233 |
return (0); |
|
789 | 234 |
} |
235 |
||
236 |
/* |
|
237 |
* Opposite of spa_load(). |
|
238 |
*/ |
|
239 |
static void |
|
240 |
spa_unload(spa_t *spa) |
|
241 |
{ |
|
2082 | 242 |
int i; |
243 |
||
789 | 244 |
/* |
1544 | 245 |
* Stop async tasks. |
246 |
*/ |
|
247 |
spa_async_suspend(spa); |
|
248 |
||
249 |
/* |
|
789 | 250 |
* Stop syncing. |
251 |
*/ |
|
252 |
if (spa->spa_sync_on) { |
|
253 |
txg_sync_stop(spa->spa_dsl_pool); |
|
254 |
spa->spa_sync_on = B_FALSE; |
|
255 |
} |
|
256 |
||
257 |
/* |
|
258 |
* Wait for any outstanding prefetch I/O to complete. |
|
259 |
*/ |
|
1544 | 260 |
spa_config_enter(spa, RW_WRITER, FTAG); |
261 |
spa_config_exit(spa, FTAG); |
|
789 | 262 |
|
263 |
/* |
|
264 |
* Close the dsl pool. |
|
265 |
*/ |
|
266 |
if (spa->spa_dsl_pool) { |
|
267 |
dsl_pool_close(spa->spa_dsl_pool); |
|
268 |
spa->spa_dsl_pool = NULL; |
|
269 |
} |
|
270 |
||
271 |
/* |
|
272 |
* Close all vdevs. |
|
273 |
*/ |
|
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
274 |
if (spa->spa_root_vdev) |
789 | 275 |
vdev_free(spa->spa_root_vdev); |
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
276 |
ASSERT(spa->spa_root_vdev == NULL); |
1544 | 277 |
|
2082 | 278 |
for (i = 0; i < spa->spa_nspares; i++) |
279 |
vdev_free(spa->spa_spares[i]); |
|
280 |
if (spa->spa_spares) { |
|
281 |
kmem_free(spa->spa_spares, spa->spa_nspares * sizeof (void *)); |
|
282 |
spa->spa_spares = NULL; |
|
283 |
} |
|
284 |
if (spa->spa_sparelist) { |
|
285 |
nvlist_free(spa->spa_sparelist); |
|
286 |
spa->spa_sparelist = NULL; |
|
287 |
} |
|
288 |
||
1544 | 289 |
spa->spa_async_suspended = 0; |
789 | 290 |
} |
291 |
||
292 |
/* |
|
2082 | 293 |
* Load (or re-load) the current list of vdevs describing the active spares for |
294 |
* this pool. When this is called, we have some form of basic information in |
|
295 |
* 'spa_sparelist'. We parse this into vdevs, try to open them, and then |
|
296 |
* re-generate a more complete list including status information. |
|
297 |
*/ |
|
298 |
static void |
|
299 |
spa_load_spares(spa_t *spa) |
|
300 |
{ |
|
301 |
nvlist_t **spares; |
|
302 |
uint_t nspares; |
|
303 |
int i; |
|
304 |
||
305 |
/* |
|
306 |
* First, close and free any existing spare vdevs. |
|
307 |
*/ |
|
308 |
for (i = 0; i < spa->spa_nspares; i++) { |
|
309 |
vdev_close(spa->spa_spares[i]); |
|
310 |
vdev_free(spa->spa_spares[i]); |
|
311 |
} |
|
312 |
if (spa->spa_spares) |
|
313 |
kmem_free(spa->spa_spares, spa->spa_nspares * sizeof (void *)); |
|
314 |
||
315 |
if (spa->spa_sparelist == NULL) |
|
316 |
nspares = 0; |
|
317 |
else |
|
318 |
VERIFY(nvlist_lookup_nvlist_array(spa->spa_sparelist, |
|
319 |
ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); |
|
320 |
||
321 |
spa->spa_nspares = (int)nspares; |
|
322 |
spa->spa_spares = NULL; |
|
323 |
||
324 |
if (nspares == 0) |
|
325 |
return; |
|
326 |
||
327 |
/* |
|
328 |
* Construct the array of vdevs, opening them to get status in the |
|
329 |
* process. |
|
330 |
*/ |
|
331 |
spa->spa_spares = kmem_alloc(nspares * sizeof (void *), KM_SLEEP); |
|
332 |
for (i = 0; i < spa->spa_nspares; i++) { |
|
333 |
vdev_t *vd; |
|
334 |
||
335 |
VERIFY(spa_config_parse(spa, &vd, spares[i], NULL, 0, |
|
336 |
VDEV_ALLOC_SPARE) == 0); |
|
337 |
ASSERT(vd != NULL); |
|
338 |
||
339 |
spa->spa_spares[i] = vd; |
|
340 |
||
341 |
if (vdev_open(vd) != 0) |
|
342 |
continue; |
|
343 |
||
344 |
vd->vdev_top = vd; |
|
345 |
(void) vdev_validate_spare(vd); |
|
346 |
} |
|
347 |
||
348 |
/* |
|
349 |
* Recompute the stashed list of spares, with status information |
|
350 |
* this time. |
|
351 |
*/ |
|
352 |
VERIFY(nvlist_remove(spa->spa_sparelist, ZPOOL_CONFIG_SPARES, |
|
353 |
DATA_TYPE_NVLIST_ARRAY) == 0); |
|
354 |
||
355 |
spares = kmem_alloc(spa->spa_nspares * sizeof (void *), KM_SLEEP); |
|
356 |
for (i = 0; i < spa->spa_nspares; i++) |
|
357 |
spares[i] = vdev_config_generate(spa, spa->spa_spares[i], |
|
358 |
B_TRUE, B_TRUE); |
|
359 |
VERIFY(nvlist_add_nvlist_array(spa->spa_sparelist, ZPOOL_CONFIG_SPARES, |
|
360 |
spares, spa->spa_nspares) == 0); |
|
361 |
for (i = 0; i < spa->spa_nspares; i++) |
|
362 |
nvlist_free(spares[i]); |
|
363 |
kmem_free(spares, spa->spa_nspares * sizeof (void *)); |
|
364 |
} |
|
365 |
||
366 |
static int |
|
367 |
load_nvlist(spa_t *spa, uint64_t obj, nvlist_t **value) |
|
368 |
{ |
|
369 |
dmu_buf_t *db; |
|
370 |
char *packed = NULL; |
|
371 |
size_t nvsize = 0; |
|
372 |
int error; |
|
373 |
*value = NULL; |
|
374 |
||
375 |
VERIFY(0 == dmu_bonus_hold(spa->spa_meta_objset, obj, FTAG, &db)); |
|
376 |
nvsize = *(uint64_t *)db->db_data; |
|
377 |
dmu_buf_rele(db, FTAG); |
|
378 |
||
379 |
packed = kmem_alloc(nvsize, KM_SLEEP); |
|
380 |
error = dmu_read(spa->spa_meta_objset, obj, 0, nvsize, packed); |
|
381 |
if (error == 0) |
|
382 |
error = nvlist_unpack(packed, nvsize, value, 0); |
|
383 |
kmem_free(packed, nvsize); |
|
384 |
||
385 |
return (error); |
|
386 |
} |
|
387 |
||
388 |
/* |
|
789 | 389 |
* Load an existing storage pool, using the pool's builtin spa_config as a |
1544 | 390 |
* source of configuration information. |
789 | 391 |
*/ |
392 |
static int |
|
1544 | 393 |
spa_load(spa_t *spa, nvlist_t *config, spa_load_state_t state, int mosconfig) |
789 | 394 |
{ |
395 |
int error = 0; |
|
396 |
nvlist_t *nvroot = NULL; |
|
397 |
vdev_t *rvd; |
|
398 |
uberblock_t *ub = &spa->spa_uberblock; |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
399 |
uint64_t config_cache_txg = spa->spa_config_txg; |
789 | 400 |
uint64_t pool_guid; |
2082 | 401 |
uint64_t version; |
789 | 402 |
zio_t *zio; |
403 |
||
1544 | 404 |
spa->spa_load_state = state; |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
405 |
|
789 | 406 |
if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvroot) || |
1733 | 407 |
nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &pool_guid)) { |
1544 | 408 |
error = EINVAL; |
409 |
goto out; |
|
410 |
} |
|
789 | 411 |
|
2082 | 412 |
/* |
413 |
* Versioning wasn't explicitly added to the label until later, so if |
|
414 |
* it's not present treat it as the initial version. |
|
415 |
*/ |
|
416 |
if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION, &version) != 0) |
|
417 |
version = ZFS_VERSION_INITIAL; |
|
418 |
||
1733 | 419 |
(void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG, |
420 |
&spa->spa_config_txg); |
|
421 |
||
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
422 |
if ((state == SPA_LOAD_IMPORT || state == SPA_LOAD_TRYIMPORT) && |
1544 | 423 |
spa_guid_exists(pool_guid, 0)) { |
424 |
error = EEXIST; |
|
425 |
goto out; |
|
426 |
} |
|
789 | 427 |
|
2174
73de7a781492
6433717 offline devices should not be marked persistently unavailble
eschrock
parents:
2082
diff
changeset
|
428 |
spa->spa_load_guid = pool_guid; |
73de7a781492
6433717 offline devices should not be marked persistently unavailble
eschrock
parents:
2082
diff
changeset
|
429 |
|
789 | 430 |
/* |
2082 | 431 |
* Parse the configuration into a vdev tree. We explicitly set the |
432 |
* value that will be returned by spa_version() since parsing the |
|
433 |
* configuration requires knowing the version number. |
|
789 | 434 |
*/ |
1544 | 435 |
spa_config_enter(spa, RW_WRITER, FTAG); |
2082 | 436 |
spa->spa_ubsync.ub_version = version; |
437 |
error = spa_config_parse(spa, &rvd, nvroot, NULL, 0, VDEV_ALLOC_LOAD); |
|
1544 | 438 |
spa_config_exit(spa, FTAG); |
789 | 439 |
|
2082 | 440 |
if (error != 0) |
1544 | 441 |
goto out; |
789 | 442 |
|
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
443 |
ASSERT(spa->spa_root_vdev == rvd); |
789 | 444 |
ASSERT(spa_guid(spa) == pool_guid); |
445 |
||
446 |
/* |
|
447 |
* Try to open all vdevs, loading each label in the process. |
|
448 |
*/ |
|
1544 | 449 |
if (vdev_open(rvd) != 0) { |
450 |
error = ENXIO; |
|
451 |
goto out; |
|
452 |
} |
|
789 | 453 |
|
454 |
/* |
|
1986
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
455 |
* 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
|
456 |
* 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
|
457 |
* flag. |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
458 |
*/ |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
459 |
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
|
460 |
error = vdev_validate(rvd); |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
461 |
spa_config_exit(spa, FTAG); |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
462 |
|
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
463 |
if (error != 0) { |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
464 |
error = EBADF; |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
465 |
goto out; |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
466 |
} |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
467 |
|
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
468 |
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
|
469 |
error = ENXIO; |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
470 |
goto out; |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
471 |
} |
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
472 |
|
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
473 |
/* |
789 | 474 |
* Find the best uberblock. |
475 |
*/ |
|
476 |
bzero(ub, sizeof (uberblock_t)); |
|
477 |
||
478 |
zio = zio_root(spa, NULL, NULL, |
|
479 |
ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE); |
|
480 |
vdev_uberblock_load(zio, rvd, ub); |
|
481 |
error = zio_wait(zio); |
|
482 |
||
483 |
/* |
|
484 |
* If we weren't able to find a single valid uberblock, return failure. |
|
485 |
*/ |
|
486 |
if (ub->ub_txg == 0) { |
|
1760 | 487 |
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
488 |
VDEV_AUX_CORRUPT_DATA); |
|
1544 | 489 |
error = ENXIO; |
490 |
goto out; |
|
491 |
} |
|
492 |
||
493 |
/* |
|
494 |
* If the pool is newer than the code, we can't open it. |
|
495 |
*/ |
|
1760 | 496 |
if (ub->ub_version > ZFS_VERSION) { |
497 |
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
|
498 |
VDEV_AUX_VERSION_NEWER); |
|
1544 | 499 |
error = ENOTSUP; |
500 |
goto out; |
|
789 | 501 |
} |
502 |
||
503 |
/* |
|
504 |
* If the vdev guid sum doesn't match the uberblock, we have an |
|
505 |
* incomplete configuration. |
|
506 |
*/ |
|
1732 | 507 |
if (rvd->vdev_guid_sum != ub->ub_guid_sum && mosconfig) { |
1544 | 508 |
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
509 |
VDEV_AUX_BAD_GUID_SUM); |
|
510 |
error = ENXIO; |
|
511 |
goto out; |
|
789 | 512 |
} |
513 |
||
514 |
/* |
|
515 |
* Initialize internal SPA structures. |
|
516 |
*/ |
|
517 |
spa->spa_state = POOL_STATE_ACTIVE; |
|
518 |
spa->spa_ubsync = spa->spa_uberblock; |
|
519 |
spa->spa_first_txg = spa_last_synced_txg(spa) + 1; |
|
1544 | 520 |
error = dsl_pool_open(spa, spa->spa_first_txg, &spa->spa_dsl_pool); |
521 |
if (error) { |
|
522 |
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
|
523 |
VDEV_AUX_CORRUPT_DATA); |
|
524 |
goto out; |
|
525 |
} |
|
789 | 526 |
spa->spa_meta_objset = spa->spa_dsl_pool->dp_meta_objset; |
527 |
||
1544 | 528 |
if (zap_lookup(spa->spa_meta_objset, |
789 | 529 |
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CONFIG, |
1544 | 530 |
sizeof (uint64_t), 1, &spa->spa_config_object) != 0) { |
531 |
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
|
532 |
VDEV_AUX_CORRUPT_DATA); |
|
533 |
error = EIO; |
|
534 |
goto out; |
|
535 |
} |
|
789 | 536 |
|
537 |
if (!mosconfig) { |
|
2082 | 538 |
nvlist_t *newconfig; |
539 |
||
540 |
if (load_nvlist(spa, spa->spa_config_object, &newconfig) != 0) { |
|
1544 | 541 |
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
542 |
VDEV_AUX_CORRUPT_DATA); |
|
543 |
error = EIO; |
|
544 |
goto out; |
|
545 |
} |
|
789 | 546 |
|
547 |
spa_config_set(spa, newconfig); |
|
548 |
spa_unload(spa); |
|
549 |
spa_deactivate(spa); |
|
550 |
spa_activate(spa); |
|
551 |
||
1544 | 552 |
return (spa_load(spa, newconfig, state, B_TRUE)); |
553 |
} |
|
554 |
||
555 |
if (zap_lookup(spa->spa_meta_objset, |
|
556 |
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SYNC_BPLIST, |
|
557 |
sizeof (uint64_t), 1, &spa->spa_sync_bplist_obj) != 0) { |
|
558 |
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
|
559 |
VDEV_AUX_CORRUPT_DATA); |
|
560 |
error = EIO; |
|
561 |
goto out; |
|
789 | 562 |
} |
563 |
||
1544 | 564 |
/* |
2082 | 565 |
* Load the bit that tells us to use the new accounting function |
566 |
* (raid-z deflation). If we have an older pool, this will not |
|
567 |
* be present. |
|
568 |
*/ |
|
569 |
error = zap_lookup(spa->spa_meta_objset, |
|
570 |
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, |
|
571 |
sizeof (uint64_t), 1, &spa->spa_deflate); |
|
572 |
if (error != 0 && error != ENOENT) { |
|
573 |
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
|
574 |
VDEV_AUX_CORRUPT_DATA); |
|
575 |
error = EIO; |
|
576 |
goto out; |
|
577 |
} |
|
578 |
||
579 |
/* |
|
1544 | 580 |
* Load the persistent error log. If we have an older pool, this will |
581 |
* not be present. |
|
582 |
*/ |
|
583 |
error = zap_lookup(spa->spa_meta_objset, |
|
584 |
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_ERRLOG_LAST, |
|
585 |
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
|
586 |
if (error != 0 && error != ENOENT) { |
1544 | 587 |
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
588 |
VDEV_AUX_CORRUPT_DATA); |
|
589 |
error = EIO; |
|
590 |
goto out; |
|
591 |
} |
|
592 |
||
593 |
error = zap_lookup(spa->spa_meta_objset, |
|
594 |
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_ERRLOG_SCRUB, |
|
595 |
sizeof (uint64_t), 1, &spa->spa_errlog_scrub); |
|
596 |
if (error != 0 && error != ENOENT) { |
|
597 |
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
|
598 |
VDEV_AUX_CORRUPT_DATA); |
|
599 |
error = EIO; |
|
600 |
goto out; |
|
601 |
} |
|
789 | 602 |
|
603 |
/* |
|
2926 | 604 |
* Load the history object. If we have an older pool, this |
605 |
* will not be present. |
|
606 |
*/ |
|
607 |
error = zap_lookup(spa->spa_meta_objset, |
|
608 |
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_HISTORY, |
|
609 |
sizeof (uint64_t), 1, &spa->spa_history); |
|
610 |
if (error != 0 && error != ENOENT) { |
|
611 |
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
|
612 |
VDEV_AUX_CORRUPT_DATA); |
|
613 |
error = EIO; |
|
614 |
goto out; |
|
615 |
} |
|
616 |
||
617 |
/* |
|
2082 | 618 |
* Load any hot spares for this pool. |
619 |
*/ |
|
620 |
error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, |
|
621 |
DMU_POOL_SPARES, sizeof (uint64_t), 1, &spa->spa_spares_object); |
|
622 |
if (error != 0 && error != ENOENT) { |
|
623 |
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
|
624 |
VDEV_AUX_CORRUPT_DATA); |
|
625 |
error = EIO; |
|
626 |
goto out; |
|
627 |
} |
|
628 |
if (error == 0) { |
|
629 |
ASSERT(spa_version(spa) >= ZFS_VERSION_SPARES); |
|
630 |
if (load_nvlist(spa, spa->spa_spares_object, |
|
631 |
&spa->spa_sparelist) != 0) { |
|
632 |
vdev_set_state(rvd, B_TRUE, VDEV_STATE_CANT_OPEN, |
|
633 |
VDEV_AUX_CORRUPT_DATA); |
|
634 |
error = EIO; |
|
635 |
goto out; |
|
636 |
} |
|
637 |
||
638 |
spa_config_enter(spa, RW_WRITER, FTAG); |
|
639 |
spa_load_spares(spa); |
|
640 |
spa_config_exit(spa, FTAG); |
|
641 |
} |
|
642 |
||
643 |
/* |
|
1986
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
644 |
* Load the vdev state for all toplevel vdevs. |
789 | 645 |
*/ |
1986
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
646 |
vdev_load(rvd); |
789 | 647 |
|
648 |
/* |
|
649 |
* Propagate the leaf DTLs we just loaded all the way up the tree. |
|
650 |
*/ |
|
1544 | 651 |
spa_config_enter(spa, RW_WRITER, FTAG); |
789 | 652 |
vdev_dtl_reassess(rvd, 0, 0, B_FALSE); |
1544 | 653 |
spa_config_exit(spa, FTAG); |
789 | 654 |
|
655 |
/* |
|
656 |
* Check the state of the root vdev. If it can't be opened, it |
|
657 |
* indicates one or more toplevel vdevs are faulted. |
|
658 |
*/ |
|
1544 | 659 |
if (rvd->vdev_state <= VDEV_STATE_CANT_OPEN) { |
660 |
error = ENXIO; |
|
661 |
goto out; |
|
662 |
} |
|
789 | 663 |
|
1544 | 664 |
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
|
665 |
dmu_tx_t *tx; |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
666 |
int need_update = B_FALSE; |
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
667 |
int c; |
1601
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
668 |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
669 |
/* |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
670 |
* 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
|
671 |
* 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
|
672 |
*/ |
1601
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
673 |
tx = dmu_tx_create_assigned(spa_get_dsl(spa), |
789 | 674 |
spa_first_txg(spa)); |
2417 | 675 |
(void) dmu_objset_find(spa->spa_name, |
676 |
zil_claim, tx, DS_FIND_CHILDREN); |
|
789 | 677 |
dmu_tx_commit(tx); |
678 |
||
679 |
spa->spa_sync_on = B_TRUE; |
|
680 |
txg_sync_start(spa->spa_dsl_pool); |
|
681 |
||
682 |
/* |
|
683 |
* Wait for all claims to sync. |
|
684 |
*/ |
|
685 |
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
|
686 |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
687 |
/* |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
688 |
* 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
|
689 |
* 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
|
690 |
*/ |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
691 |
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
|
692 |
state == SPA_LOAD_IMPORT) |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
693 |
need_update = B_TRUE; |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
694 |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
695 |
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
|
696 |
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
|
697 |
need_update = B_TRUE; |
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
698 |
|
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
699 |
/* |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
700 |
* 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
|
701 |
* 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
|
702 |
*/ |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
703 |
if (need_update) |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
704 |
spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE); |
789 | 705 |
} |
706 |
||
1544 | 707 |
error = 0; |
708 |
out: |
|
2082 | 709 |
if (error && error != EBADF) |
1544 | 710 |
zfs_ereport_post(FM_EREPORT_ZFS_POOL, spa, NULL, NULL, 0, 0); |
711 |
spa->spa_load_state = SPA_LOAD_NONE; |
|
712 |
spa->spa_ena = 0; |
|
713 |
||
714 |
return (error); |
|
789 | 715 |
} |
716 |
||
717 |
/* |
|
718 |
* Pool Open/Import |
|
719 |
* |
|
720 |
* The import case is identical to an open except that the configuration is sent |
|
721 |
* down from userland, instead of grabbed from the configuration cache. For the |
|
722 |
* case of an open, the pool configuration will exist in the |
|
723 |
* POOL_STATE_UNITIALIZED state. |
|
724 |
* |
|
725 |
* The stats information (gen/count/ustats) is used to gather vdev statistics at |
|
726 |
* the same time open the pool, without having to keep around the spa_t in some |
|
727 |
* ambiguous state. |
|
728 |
*/ |
|
729 |
static int |
|
730 |
spa_open_common(const char *pool, spa_t **spapp, void *tag, nvlist_t **config) |
|
731 |
{ |
|
732 |
spa_t *spa; |
|
733 |
int error; |
|
734 |
int loaded = B_FALSE; |
|
735 |
int locked = B_FALSE; |
|
736 |
||
737 |
*spapp = NULL; |
|
738 |
||
739 |
/* |
|
740 |
* As disgusting as this is, we need to support recursive calls to this |
|
741 |
* function because dsl_dir_open() is called during spa_load(), and ends |
|
742 |
* up calling spa_open() again. The real fix is to figure out how to |
|
743 |
* avoid dsl_dir_open() calling this in the first place. |
|
744 |
*/ |
|
745 |
if (mutex_owner(&spa_namespace_lock) != curthread) { |
|
746 |
mutex_enter(&spa_namespace_lock); |
|
747 |
locked = B_TRUE; |
|
748 |
} |
|
749 |
||
750 |
if ((spa = spa_lookup(pool)) == NULL) { |
|
751 |
if (locked) |
|
752 |
mutex_exit(&spa_namespace_lock); |
|
753 |
return (ENOENT); |
|
754 |
} |
|
755 |
if (spa->spa_state == POOL_STATE_UNINITIALIZED) { |
|
756 |
||
757 |
spa_activate(spa); |
|
758 |
||
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
759 |
error = spa_load(spa, spa->spa_config, SPA_LOAD_OPEN, B_FALSE); |
789 | 760 |
|
761 |
if (error == EBADF) { |
|
762 |
/* |
|
1986
628267397204
6424405 zpool import destroyed_pool can damage existing pool using same devices
eschrock
parents:
1807
diff
changeset
|
763 |
* 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
|
764 |
* 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
|
765 |
* 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
|
766 |
* 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
|
767 |
* we should remove the pool from the namespace. |
789 | 768 |
*/ |
2082 | 769 |
zfs_post_ok(spa, NULL); |
789 | 770 |
spa_unload(spa); |
771 |
spa_deactivate(spa); |
|
772 |
spa_remove(spa); |
|
773 |
spa_config_sync(); |
|
774 |
if (locked) |
|
775 |
mutex_exit(&spa_namespace_lock); |
|
776 |
return (ENOENT); |
|
1544 | 777 |
} |
778 |
||
779 |
if (error) { |
|
789 | 780 |
/* |
781 |
* We can't open the pool, but we still have useful |
|
782 |
* information: the state of each vdev after the |
|
783 |
* attempted vdev_open(). Return this to the user. |
|
784 |
*/ |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
785 |
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
|
786 |
spa_config_enter(spa, RW_READER, FTAG); |
789 | 787 |
*config = spa_config_generate(spa, NULL, -1ULL, |
788 |
B_TRUE); |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
789 |
spa_config_exit(spa, FTAG); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
790 |
} |
789 | 791 |
spa_unload(spa); |
792 |
spa_deactivate(spa); |
|
1544 | 793 |
spa->spa_last_open_failed = B_TRUE; |
789 | 794 |
if (locked) |
795 |
mutex_exit(&spa_namespace_lock); |
|
796 |
*spapp = NULL; |
|
797 |
return (error); |
|
1544 | 798 |
} else { |
799 |
zfs_post_ok(spa, NULL); |
|
800 |
spa->spa_last_open_failed = B_FALSE; |
|
789 | 801 |
} |
802 |
||
803 |
loaded = B_TRUE; |
|
804 |
} |
|
805 |
||
806 |
spa_open_ref(spa, tag); |
|
807 |
if (locked) |
|
808 |
mutex_exit(&spa_namespace_lock); |
|
809 |
||
810 |
*spapp = spa; |
|
811 |
||
812 |
if (config != NULL) { |
|
1544 | 813 |
spa_config_enter(spa, RW_READER, FTAG); |
789 | 814 |
*config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); |
1544 | 815 |
spa_config_exit(spa, FTAG); |
789 | 816 |
} |
817 |
||
818 |
/* |
|
819 |
* If we just loaded the pool, resilver anything that's out of date. |
|
820 |
*/ |
|
821 |
if (loaded && (spa_mode & FWRITE)) |
|
822 |
VERIFY(spa_scrub(spa, POOL_SCRUB_RESILVER, B_TRUE) == 0); |
|
823 |
||
824 |
return (0); |
|
825 |
} |
|
826 |
||
827 |
int |
|
828 |
spa_open(const char *name, spa_t **spapp, void *tag) |
|
829 |
{ |
|
830 |
return (spa_open_common(name, spapp, tag, NULL)); |
|
831 |
} |
|
832 |
||
1544 | 833 |
/* |
834 |
* Lookup the given spa_t, incrementing the inject count in the process, |
|
835 |
* preventing it from being exported or destroyed. |
|
836 |
*/ |
|
837 |
spa_t * |
|
838 |
spa_inject_addref(char *name) |
|
839 |
{ |
|
840 |
spa_t *spa; |
|
841 |
||
842 |
mutex_enter(&spa_namespace_lock); |
|
843 |
if ((spa = spa_lookup(name)) == NULL) { |
|
844 |
mutex_exit(&spa_namespace_lock); |
|
845 |
return (NULL); |
|
846 |
} |
|
847 |
spa->spa_inject_ref++; |
|
848 |
mutex_exit(&spa_namespace_lock); |
|
849 |
||
850 |
return (spa); |
|
851 |
} |
|
852 |
||
853 |
void |
|
854 |
spa_inject_delref(spa_t *spa) |
|
855 |
{ |
|
856 |
mutex_enter(&spa_namespace_lock); |
|
857 |
spa->spa_inject_ref--; |
|
858 |
mutex_exit(&spa_namespace_lock); |
|
859 |
} |
|
860 |
||
2082 | 861 |
static void |
862 |
spa_add_spares(spa_t *spa, nvlist_t *config) |
|
863 |
{ |
|
864 |
nvlist_t **spares; |
|
865 |
uint_t i, nspares; |
|
866 |
nvlist_t *nvroot; |
|
867 |
uint64_t guid; |
|
868 |
vdev_stat_t *vs; |
|
869 |
uint_t vsc; |
|
870 |
||
871 |
if (spa->spa_nspares == 0) |
|
872 |
return; |
|
873 |
||
874 |
VERIFY(nvlist_lookup_nvlist(config, |
|
875 |
ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); |
|
876 |
VERIFY(nvlist_lookup_nvlist_array(spa->spa_sparelist, |
|
877 |
ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); |
|
878 |
if (nspares != 0) { |
|
879 |
VERIFY(nvlist_add_nvlist_array(nvroot, |
|
880 |
ZPOOL_CONFIG_SPARES, spares, nspares) == 0); |
|
881 |
VERIFY(nvlist_lookup_nvlist_array(nvroot, |
|
882 |
ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); |
|
883 |
||
884 |
/* |
|
885 |
* Go through and find any spares which have since been |
|
886 |
* repurposed as an active spare. If this is the case, update |
|
887 |
* their status appropriately. |
|
888 |
*/ |
|
889 |
for (i = 0; i < nspares; i++) { |
|
890 |
VERIFY(nvlist_lookup_uint64(spares[i], |
|
891 |
ZPOOL_CONFIG_GUID, &guid) == 0); |
|
892 |
if (spa_spare_inuse(guid)) { |
|
893 |
VERIFY(nvlist_lookup_uint64_array( |
|
894 |
spares[i], ZPOOL_CONFIG_STATS, |
|
895 |
(uint64_t **)&vs, &vsc) == 0); |
|
896 |
vs->vs_state = VDEV_STATE_CANT_OPEN; |
|
897 |
vs->vs_aux = VDEV_AUX_SPARED; |
|
898 |
} |
|
899 |
} |
|
900 |
} |
|
901 |
} |
|
902 |
||
789 | 903 |
int |
1544 | 904 |
spa_get_stats(const char *name, nvlist_t **config, char *altroot, size_t buflen) |
789 | 905 |
{ |
906 |
int error; |
|
907 |
spa_t *spa; |
|
908 |
||
909 |
*config = NULL; |
|
910 |
error = spa_open_common(name, &spa, FTAG, config); |
|
911 |
||
2082 | 912 |
if (spa && *config != NULL) { |
1544 | 913 |
VERIFY(nvlist_add_uint64(*config, ZPOOL_CONFIG_ERRCOUNT, |
914 |
spa_get_errlog_size(spa)) == 0); |
|
915 |
||
2082 | 916 |
spa_add_spares(spa, *config); |
917 |
} |
|
918 |
||
1544 | 919 |
/* |
920 |
* We want to get the alternate root even for faulted pools, so we cheat |
|
921 |
* and call spa_lookup() directly. |
|
922 |
*/ |
|
923 |
if (altroot) { |
|
924 |
if (spa == NULL) { |
|
925 |
mutex_enter(&spa_namespace_lock); |
|
926 |
spa = spa_lookup(name); |
|
927 |
if (spa) |
|
928 |
spa_altroot(spa, altroot, buflen); |
|
929 |
else |
|
930 |
altroot[0] = '\0'; |
|
931 |
spa = NULL; |
|
932 |
mutex_exit(&spa_namespace_lock); |
|
933 |
} else { |
|
934 |
spa_altroot(spa, altroot, buflen); |
|
935 |
} |
|
936 |
} |
|
937 |
||
789 | 938 |
if (spa != NULL) |
939 |
spa_close(spa, FTAG); |
|
940 |
||
941 |
return (error); |
|
942 |
} |
|
943 |
||
944 |
/* |
|
2082 | 945 |
* Validate that the 'spares' array is well formed. We must have an array of |
946 |
* nvlists, each which describes a valid leaf vdev. |
|
947 |
*/ |
|
948 |
static int |
|
949 |
spa_validate_spares(spa_t *spa, nvlist_t *nvroot, uint64_t crtxg, int mode) |
|
950 |
{ |
|
951 |
nvlist_t **spares; |
|
952 |
uint_t i, nspares; |
|
953 |
vdev_t *vd; |
|
954 |
int error; |
|
955 |
||
956 |
/* |
|
957 |
* It's acceptable to have no spares specified. |
|
958 |
*/ |
|
959 |
if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, |
|
960 |
&spares, &nspares) != 0) |
|
961 |
return (0); |
|
962 |
||
963 |
if (nspares == 0) |
|
964 |
return (EINVAL); |
|
965 |
||
966 |
/* |
|
967 |
* Make sure the pool is formatted with a version that supports hot |
|
968 |
* spares. |
|
969 |
*/ |
|
970 |
if (spa_version(spa) < ZFS_VERSION_SPARES) |
|
971 |
return (ENOTSUP); |
|
972 |
||
973 |
for (i = 0; i < nspares; i++) { |
|
974 |
if ((error = spa_config_parse(spa, &vd, spares[i], NULL, 0, |
|
975 |
mode)) != 0) |
|
976 |
return (error); |
|
977 |
||
978 |
if (!vd->vdev_ops->vdev_op_leaf) { |
|
979 |
vdev_free(vd); |
|
980 |
return (EINVAL); |
|
981 |
} |
|
982 |
||
983 |
if ((error = vdev_open(vd)) != 0) { |
|
984 |
vdev_free(vd); |
|
985 |
return (error); |
|
986 |
} |
|
987 |
||
988 |
vd->vdev_top = vd; |
|
989 |
if ((error = vdev_label_spare(vd, crtxg)) != 0) { |
|
990 |
vdev_free(vd); |
|
991 |
return (error); |
|
992 |
} |
|
993 |
||
994 |
VERIFY(nvlist_add_uint64(spares[i], ZPOOL_CONFIG_GUID, |
|
995 |
vd->vdev_guid) == 0); |
|
996 |
||
997 |
vdev_free(vd); |
|
998 |
} |
|
999 |
||
1000 |
return (0); |
|
1001 |
} |
|
1002 |
||
1003 |
/* |
|
789 | 1004 |
* Pool Creation |
1005 |
*/ |
|
1006 |
int |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1007 |
spa_create(const char *pool, nvlist_t *nvroot, const char *altroot) |
789 | 1008 |
{ |
1009 |
spa_t *spa; |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1010 |
vdev_t *rvd; |
789 | 1011 |
dsl_pool_t *dp; |
1012 |
dmu_tx_t *tx; |
|
2082 | 1013 |
int c, error = 0; |
789 | 1014 |
uint64_t txg = TXG_INITIAL; |
2082 | 1015 |
nvlist_t **spares; |
1016 |
uint_t nspares; |
|
789 | 1017 |
|
1018 |
/* |
|
1019 |
* If this pool already exists, return failure. |
|
1020 |
*/ |
|
1021 |
mutex_enter(&spa_namespace_lock); |
|
1022 |
if (spa_lookup(pool) != NULL) { |
|
1023 |
mutex_exit(&spa_namespace_lock); |
|
1024 |
return (EEXIST); |
|
1025 |
} |
|
1026 |
||
1027 |
/* |
|
1028 |
* Allocate a new spa_t structure. |
|
1029 |
*/ |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1030 |
spa = spa_add(pool, altroot); |
789 | 1031 |
spa_activate(spa); |
1032 |
||
1033 |
spa->spa_uberblock.ub_txg = txg - 1; |
|
1760 | 1034 |
spa->spa_uberblock.ub_version = ZFS_VERSION; |
789 | 1035 |
spa->spa_ubsync = spa->spa_uberblock; |
1036 |
||
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1037 |
/* |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1038 |
* Create the root vdev. |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1039 |
*/ |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1040 |
spa_config_enter(spa, RW_WRITER, FTAG); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1041 |
|
2082 | 1042 |
error = spa_config_parse(spa, &rvd, nvroot, NULL, 0, VDEV_ALLOC_ADD); |
1043 |
||
1044 |
ASSERT(error != 0 || rvd != NULL); |
|
1045 |
ASSERT(error != 0 || spa->spa_root_vdev == rvd); |
|
1046 |
||
1047 |
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
|
1048 |
error = EINVAL; |
2082 | 1049 |
|
1050 |
if (error == 0 && |
|
1051 |
(error = vdev_create(rvd, txg, B_FALSE)) == 0 && |
|
1052 |
(error = spa_validate_spares(spa, nvroot, txg, |
|
1053 |
VDEV_ALLOC_ADD)) == 0) { |
|
1054 |
for (c = 0; c < rvd->vdev_children; c++) |
|
1055 |
vdev_init(rvd->vdev_child[c], txg); |
|
1056 |
vdev_config_dirty(rvd); |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1057 |
} |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1058 |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1059 |
spa_config_exit(spa, FTAG); |
789 | 1060 |
|
2082 | 1061 |
if (error != 0) { |
789 | 1062 |
spa_unload(spa); |
1063 |
spa_deactivate(spa); |
|
1064 |
spa_remove(spa); |
|
1065 |
mutex_exit(&spa_namespace_lock); |
|
1066 |
return (error); |
|
1067 |
} |
|
1068 |
||
2082 | 1069 |
/* |
1070 |
* Get the list of spares, if specified. |
|
1071 |
*/ |
|
1072 |
if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, |
|
1073 |
&spares, &nspares) == 0) { |
|
1074 |
VERIFY(nvlist_alloc(&spa->spa_sparelist, NV_UNIQUE_NAME, |
|
1075 |
KM_SLEEP) == 0); |
|
1076 |
VERIFY(nvlist_add_nvlist_array(spa->spa_sparelist, |
|
1077 |
ZPOOL_CONFIG_SPARES, spares, nspares) == 0); |
|
1078 |
spa_config_enter(spa, RW_WRITER, FTAG); |
|
1079 |
spa_load_spares(spa); |
|
1080 |
spa_config_exit(spa, FTAG); |
|
1081 |
spa->spa_sync_spares = B_TRUE; |
|
1082 |
} |
|
1083 |
||
789 | 1084 |
spa->spa_dsl_pool = dp = dsl_pool_create(spa, txg); |
1085 |
spa->spa_meta_objset = dp->dp_meta_objset; |
|
1086 |
||
1087 |
tx = dmu_tx_create_assigned(dp, txg); |
|
1088 |
||
1089 |
/* |
|
1090 |
* Create the pool config object. |
|
1091 |
*/ |
|
1092 |
spa->spa_config_object = dmu_object_alloc(spa->spa_meta_objset, |
|
1093 |
DMU_OT_PACKED_NVLIST, 1 << 14, |
|
1094 |
DMU_OT_PACKED_NVLIST_SIZE, sizeof (uint64_t), tx); |
|
1095 |
||
1544 | 1096 |
if (zap_add(spa->spa_meta_objset, |
789 | 1097 |
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CONFIG, |
1544 | 1098 |
sizeof (uint64_t), 1, &spa->spa_config_object, tx) != 0) { |
1099 |
cmn_err(CE_PANIC, "failed to add pool config"); |
|
1100 |
} |
|
789 | 1101 |
|
2082 | 1102 |
/* Newly created pools are always deflated. */ |
1103 |
spa->spa_deflate = TRUE; |
|
1104 |
if (zap_add(spa->spa_meta_objset, |
|
1105 |
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, |
|
1106 |
sizeof (uint64_t), 1, &spa->spa_deflate, tx) != 0) { |
|
1107 |
cmn_err(CE_PANIC, "failed to add deflate"); |
|
1108 |
} |
|
1109 |
||
789 | 1110 |
/* |
1111 |
* Create the deferred-free bplist object. Turn off compression |
|
1112 |
* because sync-to-convergence takes longer if the blocksize |
|
1113 |
* keeps changing. |
|
1114 |
*/ |
|
1115 |
spa->spa_sync_bplist_obj = bplist_create(spa->spa_meta_objset, |
|
1116 |
1 << 14, tx); |
|
1117 |
dmu_object_set_compress(spa->spa_meta_objset, spa->spa_sync_bplist_obj, |
|
1118 |
ZIO_COMPRESS_OFF, tx); |
|
1119 |
||
1544 | 1120 |
if (zap_add(spa->spa_meta_objset, |
789 | 1121 |
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SYNC_BPLIST, |
1544 | 1122 |
sizeof (uint64_t), 1, &spa->spa_sync_bplist_obj, tx) != 0) { |
1123 |
cmn_err(CE_PANIC, "failed to add bplist"); |
|
1124 |
} |
|
789 | 1125 |
|
2926 | 1126 |
/* |
1127 |
* Create the pool's history object. |
|
1128 |
*/ |
|
1129 |
spa_history_create_obj(spa, tx); |
|
1130 |
||
789 | 1131 |
dmu_tx_commit(tx); |
1132 |
||
1133 |
spa->spa_sync_on = B_TRUE; |
|
1134 |
txg_sync_start(spa->spa_dsl_pool); |
|
1135 |
||
1136 |
/* |
|
1137 |
* We explicitly wait for the first transaction to complete so that our |
|
1138 |
* bean counters are appropriately updated. |
|
1139 |
*/ |
|
1140 |
txg_wait_synced(spa->spa_dsl_pool, txg); |
|
1141 |
||
1142 |
spa_config_sync(); |
|
1143 |
||
1144 |
mutex_exit(&spa_namespace_lock); |
|
1145 |
||
1146 |
return (0); |
|
1147 |
} |
|
1148 |
||
1149 |
/* |
|
1150 |
* Import the given pool into the system. We set up the necessary spa_t and |
|
1151 |
* then call spa_load() to do the dirty work. |
|
1152 |
*/ |
|
1153 |
int |
|
1635
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6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1154 |
spa_import(const char *pool, nvlist_t *config, const char *altroot) |
789 | 1155 |
{ |
1156 |
spa_t *spa; |
|
1157 |
int error; |
|
2082 | 1158 |
nvlist_t *nvroot; |
1159 |
nvlist_t **spares; |
|
1160 |
uint_t nspares; |
|
789 | 1161 |
|
1162 |
if (!(spa_mode & FWRITE)) |
|
1163 |
return (EROFS); |
|
1164 |
||
1165 |
/* |
|
1166 |
* If a pool with this name exists, return failure. |
|
1167 |
*/ |
|
1168 |
mutex_enter(&spa_namespace_lock); |
|
1169 |
if (spa_lookup(pool) != NULL) { |
|
1170 |
mutex_exit(&spa_namespace_lock); |
|
1171 |
return (EEXIST); |
|
1172 |
} |
|
1173 |
||
1174 |
/* |
|
1635
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6398664 zpool detach: missing argument to error message causes core dump
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parents:
1601
diff
changeset
|
1175 |
* Create and initialize the spa structure. |
789 | 1176 |
*/ |
1635
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6398664 zpool detach: missing argument to error message causes core dump
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parents:
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diff
changeset
|
1177 |
spa = spa_add(pool, altroot); |
789 | 1178 |
spa_activate(spa); |
1179 |
||
1180 |
/* |
|
1635
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6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1181 |
* Pass off the heavy lifting to spa_load(). |
1732 | 1182 |
* Pass TRUE for mosconfig because the user-supplied config |
1183 |
* 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
|
1184 |
*/ |
1732 | 1185 |
error = spa_load(spa, config, SPA_LOAD_IMPORT, B_TRUE); |
789 | 1186 |
|
2082 | 1187 |
spa_config_enter(spa, RW_WRITER, FTAG); |
1188 |
/* |
|
1189 |
* Toss any existing sparelist, as it doesn't have any validity anymore, |
|
1190 |
* and conflicts with spa_has_spare(). |
|
1191 |
*/ |
|
1192 |
if (spa->spa_sparelist) { |
|
1193 |
nvlist_free(spa->spa_sparelist); |
|
1194 |
spa->spa_sparelist = NULL; |
|
1195 |
spa_load_spares(spa); |
|
1196 |
} |
|
1197 |
||
1198 |
VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, |
|
1199 |
&nvroot) == 0); |
|
1200 |
if (error == 0) |
|
1201 |
error = spa_validate_spares(spa, nvroot, -1ULL, |
|
1202 |
VDEV_ALLOC_SPARE); |
|
1203 |
spa_config_exit(spa, FTAG); |
|
1204 |
||
1205 |
if (error != 0) { |
|
789 | 1206 |
spa_unload(spa); |
1207 |
spa_deactivate(spa); |
|
1208 |
spa_remove(spa); |
|
1209 |
mutex_exit(&spa_namespace_lock); |
|
1210 |
return (error); |
|
1211 |
} |
|
1212 |
||
1635
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parents:
1601
diff
changeset
|
1213 |
/* |
2082 | 1214 |
* Override any spares as specified by the user, as these may have |
1215 |
* correct device names/devids, etc. |
|
1216 |
*/ |
|
1217 |
if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, |
|
1218 |
&spares, &nspares) == 0) { |
|
1219 |
if (spa->spa_sparelist) |
|
1220 |
VERIFY(nvlist_remove(spa->spa_sparelist, |
|
1221 |
ZPOOL_CONFIG_SPARES, DATA_TYPE_NVLIST_ARRAY) == 0); |
|
1222 |
else |
|
1223 |
VERIFY(nvlist_alloc(&spa->spa_sparelist, |
|
1224 |
NV_UNIQUE_NAME, KM_SLEEP) == 0); |
|
1225 |
VERIFY(nvlist_add_nvlist_array(spa->spa_sparelist, |
|
1226 |
ZPOOL_CONFIG_SPARES, spares, nspares) == 0); |
|
1227 |
spa_config_enter(spa, RW_WRITER, FTAG); |
|
1228 |
spa_load_spares(spa); |
|
1229 |
spa_config_exit(spa, FTAG); |
|
1230 |
spa->spa_sync_spares = B_TRUE; |
|
1231 |
} |
|
1232 |
||
1233 |
/* |
|
1635
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parents:
1601
diff
changeset
|
1234 |
* Update the config cache to include the newly-imported pool. |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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parents:
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diff
changeset
|
1235 |
*/ |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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parents:
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diff
changeset
|
1236 |
spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); |
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parents:
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diff
changeset
|
1237 |
|
789 | 1238 |
mutex_exit(&spa_namespace_lock); |
1239 |
||
1240 |
/* |
|
1241 |
* Resilver anything that's out of date. |
|
1242 |
*/ |
|
1243 |
if (spa_mode & FWRITE) |
|
1244 |
VERIFY(spa_scrub(spa, POOL_SCRUB_RESILVER, B_TRUE) == 0); |
|
1245 |
||
1246 |
return (0); |
|
1247 |
} |
|
1248 |
||
1249 |
/* |
|
1250 |
* This (illegal) pool name is used when temporarily importing a spa_t in order |
|
1251 |
* to get the vdev stats associated with the imported devices. |
|
1252 |
*/ |
|
1253 |
#define TRYIMPORT_NAME "$import" |
|
1254 |
||
1255 |
nvlist_t * |
|
1256 |
spa_tryimport(nvlist_t *tryconfig) |
|
1257 |
{ |
|
1258 |
nvlist_t *config = NULL; |
|
1259 |
char *poolname; |
|
1260 |
spa_t *spa; |
|
1261 |
uint64_t state; |
|
1262 |
||
1263 |
if (nvlist_lookup_string(tryconfig, ZPOOL_CONFIG_POOL_NAME, &poolname)) |
|
1264 |
return (NULL); |
|
1265 |
||
1266 |
if (nvlist_lookup_uint64(tryconfig, ZPOOL_CONFIG_POOL_STATE, &state)) |
|
1267 |
return (NULL); |
|
1268 |
||
1635
0ab1193d47cb
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bonwick
parents:
1601
diff
changeset
|
1269 |
/* |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1270 |
* Create and initialize the spa structure. |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1271 |
*/ |
789 | 1272 |
mutex_enter(&spa_namespace_lock); |
1635
0ab1193d47cb
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bonwick
parents:
1601
diff
changeset
|
1273 |
spa = spa_add(TRYIMPORT_NAME, NULL); |
789 | 1274 |
spa_activate(spa); |
1275 |
||
1276 |
/* |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1277 |
* Pass off the heavy lifting to spa_load(). |
1732 | 1278 |
* Pass TRUE for mosconfig because the user-supplied config |
1279 |
* is actually the one to trust when doing an import. |
|
789 | 1280 |
*/ |
1732 | 1281 |
(void) spa_load(spa, tryconfig, SPA_LOAD_TRYIMPORT, B_TRUE); |
789 | 1282 |
|
1283 |
/* |
|
1284 |
* If 'tryconfig' was at least parsable, return the current config. |
|
1285 |
*/ |
|
1286 |
if (spa->spa_root_vdev != NULL) { |
|
1635
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parents:
1601
diff
changeset
|
1287 |
spa_config_enter(spa, RW_READER, FTAG); |
789 | 1288 |
config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
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parents:
1601
diff
changeset
|
1289 |
spa_config_exit(spa, FTAG); |
789 | 1290 |
VERIFY(nvlist_add_string(config, ZPOOL_CONFIG_POOL_NAME, |
1291 |
poolname) == 0); |
|
1292 |
VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_POOL_STATE, |
|
1293 |
state) == 0); |
|
2082 | 1294 |
|
1295 |
/* |
|
1296 |
* Add the list of hot spares. |
|
1297 |
*/ |
|
1298 |
spa_add_spares(spa, config); |
|
789 | 1299 |
} |
1300 |
||
1301 |
spa_unload(spa); |
|
1302 |
spa_deactivate(spa); |
|
1303 |
spa_remove(spa); |
|
1304 |
mutex_exit(&spa_namespace_lock); |
|
1305 |
||
1306 |
return (config); |
|
1307 |
} |
|
1308 |
||
1309 |
/* |
|
1310 |
* Pool export/destroy |
|
1311 |
* |
|
1312 |
* The act of destroying or exporting a pool is very simple. We make sure there |
|
1313 |
* is no more pending I/O and any references to the pool are gone. Then, we |
|
1314 |
* update the pool state and sync all the labels to disk, removing the |
|
1315 |
* configuration from the cache afterwards. |
|
1316 |
*/ |
|
1317 |
static int |
|
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
1318 |
spa_export_common(char *pool, int new_state, nvlist_t **oldconfig) |
789 | 1319 |
{ |
1320 |
spa_t *spa; |
|
1321 |
||
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
1322 |
if (oldconfig) |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
1323 |
*oldconfig = NULL; |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
1324 |
|
789 | 1325 |
if (!(spa_mode & FWRITE)) |
1326 |
return (EROFS); |
|
1327 |
||
1328 |
mutex_enter(&spa_namespace_lock); |
|
1329 |
if ((spa = spa_lookup(pool)) == NULL) { |
|
1330 |
mutex_exit(&spa_namespace_lock); |
|
1331 |
return (ENOENT); |
|
1332 |
} |
|
1333 |
||
1334 |
/* |
|
1544 | 1335 |
* Put a hold on the pool, drop the namespace lock, stop async tasks, |
1336 |
* reacquire the namespace lock, and see if we can export. |
|
1337 |
*/ |
|
1338 |
spa_open_ref(spa, FTAG); |
|
1339 |
mutex_exit(&spa_namespace_lock); |
|
1340 |
spa_async_suspend(spa); |
|
1341 |
mutex_enter(&spa_namespace_lock); |
|
1342 |
spa_close(spa, FTAG); |
|
1343 |
||
1344 |
/* |
|
789 | 1345 |
* The pool will be in core if it's openable, |
1346 |
* in which case we can modify its state. |
|
1347 |
*/ |
|
1348 |
if (spa->spa_state != POOL_STATE_UNINITIALIZED && spa->spa_sync_on) { |
|
1349 |
/* |
|
1350 |
* Objsets may be open only because they're dirty, so we |
|
1351 |
* have to force it to sync before checking spa_refcnt. |
|
1352 |
*/ |
|
1353 |
spa_scrub_suspend(spa); |
|
1354 |
txg_wait_synced(spa->spa_dsl_pool, 0); |
|
1355 |
||
1544 | 1356 |
/* |
1357 |
* A pool cannot be exported or destroyed if there are active |
|
1358 |
* references. If we are resetting a pool, allow references by |
|
1359 |
* fault injection handlers. |
|
1360 |
*/ |
|
1361 |
if (!spa_refcount_zero(spa) || |
|
1362 |
(spa->spa_inject_ref != 0 && |
|
1363 |
new_state != POOL_STATE_UNINITIALIZED)) { |
|
789 | 1364 |
spa_scrub_resume(spa); |
1544 | 1365 |
spa_async_resume(spa); |
789 | 1366 |
mutex_exit(&spa_namespace_lock); |
1367 |
return (EBUSY); |
|
1368 |
} |
|
1369 |
||
1370 |
spa_scrub_resume(spa); |
|
1371 |
VERIFY(spa_scrub(spa, POOL_SCRUB_NONE, B_TRUE) == 0); |
|
1372 |
||
1373 |
/* |
|
1374 |
* We want this to be reflected on every label, |
|
1375 |
* so mark them all dirty. spa_unload() will do the |
|
1376 |
* final sync that pushes these changes out. |
|
1377 |
*/ |
|
1544 | 1378 |
if (new_state != POOL_STATE_UNINITIALIZED) { |
1601
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parents:
1585
diff
changeset
|
1379 |
spa_config_enter(spa, RW_WRITER, FTAG); |
1544 | 1380 |
spa->spa_state = new_state; |
1635
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parents:
1601
diff
changeset
|
1381 |
spa->spa_final_txg = spa_last_synced_txg(spa) + 1; |
1544 | 1382 |
vdev_config_dirty(spa->spa_root_vdev); |
1601
438b928f80c7
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bonwick
parents:
1585
diff
changeset
|
1383 |
spa_config_exit(spa, FTAG); |
1544 | 1384 |
} |
789 | 1385 |
} |
1386 |
||
1387 |
if (spa->spa_state != POOL_STATE_UNINITIALIZED) { |
|
1388 |
spa_unload(spa); |
|
1389 |
spa_deactivate(spa); |
|
1390 |
} |
|
1391 |
||
1775
e51e26b432c0
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billm
parents:
1760
diff
changeset
|
1392 |
if (oldconfig && spa->spa_config) |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
1393 |
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
|
1394 |
|
1544 | 1395 |
if (new_state != POOL_STATE_UNINITIALIZED) { |
1396 |
spa_remove(spa); |
|
1397 |
spa_config_sync(); |
|
1398 |
} |
|
789 | 1399 |
mutex_exit(&spa_namespace_lock); |
1400 |
||
1401 |
return (0); |
|
1402 |
} |
|
1403 |
||
1404 |
/* |
|
1405 |
* Destroy a storage pool. |
|
1406 |
*/ |
|
1407 |
int |
|
1408 |
spa_destroy(char *pool) |
|
1409 |
{ |
|
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
1410 |
return (spa_export_common(pool, POOL_STATE_DESTROYED, NULL)); |
789 | 1411 |
} |
1412 |
||
1413 |
/* |
|
1414 |
* Export a storage pool. |
|
1415 |
*/ |
|
1416 |
int |
|
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
1417 |
spa_export(char *pool, nvlist_t **oldconfig) |
789 | 1418 |
{ |
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
1419 |
return (spa_export_common(pool, POOL_STATE_EXPORTED, oldconfig)); |
789 | 1420 |
} |
1421 |
||
1422 |
/* |
|
1544 | 1423 |
* Similar to spa_export(), this unloads the spa_t without actually removing it |
1424 |
* from the namespace in any way. |
|
1425 |
*/ |
|
1426 |
int |
|
1427 |
spa_reset(char *pool) |
|
1428 |
{ |
|
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
1429 |
return (spa_export_common(pool, POOL_STATE_UNINITIALIZED, NULL)); |
1544 | 1430 |
} |
1431 |
||
1432 |
||
1433 |
/* |
|
789 | 1434 |
* ========================================================================== |
1435 |
* Device manipulation |
|
1436 |
* ========================================================================== |
|
1437 |
*/ |
|
1438 |
||
1439 |
/* |
|
1440 |
* Add capacity to a storage pool. |
|
1441 |
*/ |
|
1442 |
int |
|
1443 |
spa_vdev_add(spa_t *spa, nvlist_t *nvroot) |
|
1444 |
{ |
|
1445 |
uint64_t txg; |
|
1635
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6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1446 |
int c, error; |
789 | 1447 |
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
|
1448 |
vdev_t *vd, *tvd; |
2082 | 1449 |
nvlist_t **spares; |
1450 |
uint_t i, nspares; |
|
789 | 1451 |
|
1452 |
txg = spa_vdev_enter(spa); |
|
1453 |
||
2082 | 1454 |
if ((error = spa_config_parse(spa, &vd, nvroot, NULL, 0, |
1455 |
VDEV_ALLOC_ADD)) != 0) |
|
1456 |
return (spa_vdev_exit(spa, NULL, txg, error)); |
|
1457 |
||
1458 |
if ((error = spa_validate_spares(spa, nvroot, txg, |
|
1459 |
VDEV_ALLOC_ADD)) != 0) |
|
789 | 1460 |
return (spa_vdev_exit(spa, vd, txg, error)); |
1461 |
||
2082 | 1462 |
if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, |
1463 |
&spares, &nspares) != 0) |
|
1464 |
nspares = 0; |
|
1465 |
||
1466 |
if (vd->vdev_children == 0 && nspares == 0) |
|
1467 |
return (spa_vdev_exit(spa, vd, txg, EINVAL)); |
|
1468 |
||
1469 |
if (vd->vdev_children != 0) { |
|
1470 |
if ((error = vdev_create(vd, txg, B_FALSE)) != 0) |
|
1471 |
return (spa_vdev_exit(spa, vd, txg, error)); |
|
1472 |
||
1473 |
/* |
|
1474 |
* Transfer each new top-level vdev from vd to rvd. |
|
1475 |
*/ |
|
1476 |
for (c = 0; c < vd->vdev_children; c++) { |
|
1477 |
tvd = vd->vdev_child[c]; |
|
1478 |
vdev_remove_child(vd, tvd); |
|
1479 |
tvd->vdev_id = rvd->vdev_children; |
|
1480 |
vdev_add_child(rvd, tvd); |
|
1481 |
vdev_config_dirty(tvd); |
|
1482 |
} |
|
1483 |
} |
|
1484 |
||
1485 |
if (nspares != 0) { |
|
1486 |
if (spa->spa_sparelist != NULL) { |
|
1487 |
nvlist_t **oldspares; |
|
1488 |
uint_t oldnspares; |
|
1489 |
nvlist_t **newspares; |
|
1490 |
||
1491 |
VERIFY(nvlist_lookup_nvlist_array(spa->spa_sparelist, |
|
1492 |
ZPOOL_CONFIG_SPARES, &oldspares, &oldnspares) == 0); |
|
1493 |
||
1494 |
newspares = kmem_alloc(sizeof (void *) * |
|
1495 |
(nspares + oldnspares), KM_SLEEP); |
|
1496 |
for (i = 0; i < oldnspares; i++) |
|
1497 |
VERIFY(nvlist_dup(oldspares[i], |
|
1498 |
&newspares[i], KM_SLEEP) == 0); |
|
1499 |
for (i = 0; i < nspares; i++) |
|
1500 |
VERIFY(nvlist_dup(spares[i], |
|
1501 |
&newspares[i + oldnspares], |
|
1502 |
KM_SLEEP) == 0); |
|
1503 |
||
1504 |
VERIFY(nvlist_remove(spa->spa_sparelist, |
|
1505 |
ZPOOL_CONFIG_SPARES, DATA_TYPE_NVLIST_ARRAY) == 0); |
|
1506 |
||
1507 |
VERIFY(nvlist_add_nvlist_array(spa->spa_sparelist, |
|
1508 |
ZPOOL_CONFIG_SPARES, newspares, |
|
1509 |
nspares + oldnspares) == 0); |
|
1510 |
for (i = 0; i < oldnspares + nspares; i++) |
|
1511 |
nvlist_free(newspares[i]); |
|
1512 |
kmem_free(newspares, (oldnspares + nspares) * |
|
1513 |
sizeof (void *)); |
|
1514 |
} else { |
|
1515 |
VERIFY(nvlist_alloc(&spa->spa_sparelist, |
|
1516 |
NV_UNIQUE_NAME, KM_SLEEP) == 0); |
|
1517 |
VERIFY(nvlist_add_nvlist_array(spa->spa_sparelist, |
|
1518 |
ZPOOL_CONFIG_SPARES, spares, nspares) == 0); |
|
1519 |
} |
|
1520 |
||
1521 |
spa_load_spares(spa); |
|
1522 |
spa->spa_sync_spares = B_TRUE; |
|
789 | 1523 |
} |
1524 |
||
1525 |
/* |
|
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1526 |
* 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
|
1527 |
* 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
|
1528 |
* 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
|
1529 |
* 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
|
1530 |
* 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
|
1531 |
* 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
|
1532 |
* 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
|
1533 |
* |
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1534 |
* 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
|
1535 |
* 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
|
1536 |
* steps will be completed the next time we load the pool. |
789 | 1537 |
*/ |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1538 |
(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
|
1539 |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1540 |
mutex_enter(&spa_namespace_lock); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1541 |
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
|
1542 |
mutex_exit(&spa_namespace_lock); |
789 | 1543 |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
1544 |
return (0); |
789 | 1545 |
} |
1546 |
||
1547 |
/* |
|
1548 |
* Attach a device to a mirror. The arguments are the path to any device |
|
1549 |
* in the mirror, and the nvroot for the new device. If the path specifies |
|
1550 |
* a device that is not mirrored, we automatically insert the mirror vdev. |
|
1551 |
* |
|
1552 |
* If 'replacing' is specified, the new device is intended to replace the |
|
1553 |
* existing device; in this case the two devices are made into their own |
|
1554 |
* mirror using the 'replacing' vdev, which is functionally idendical to |
|
1555 |
* the mirror vdev (it actually reuses all the same ops) but has a few |
|
1556 |
* extra rules: you can't attach to it after it's been created, and upon |
|
1557 |
* completion of resilvering, the first disk (the one being replaced) |
|
1558 |
* is automatically detached. |
|
1559 |
*/ |
|
1560 |
int |
|
1544 | 1561 |
spa_vdev_attach(spa_t *spa, uint64_t guid, nvlist_t *nvroot, int replacing) |
789 | 1562 |
{ |
1563 |
uint64_t txg, open_txg; |
|
1564 |
int error; |
|
1565 |
vdev_t *rvd = spa->spa_root_vdev; |
|
1566 |
vdev_t *oldvd, *newvd, *newrootvd, *pvd, *tvd; |
|
2082 | 1567 |
vdev_ops_t *pvops; |
789 | 1568 |
|
1569 |
txg = spa_vdev_enter(spa); |
|
1570 |
||
1544 | 1571 |
oldvd = vdev_lookup_by_guid(rvd, guid); |
789 | 1572 |
|
1573 |
if (oldvd == NULL) |
|
1574 |
return (spa_vdev_exit(spa, NULL, txg, ENODEV)); |
|
1575 |
||
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1576 |
if (!oldvd->vdev_ops->vdev_op_leaf) |
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1577 |
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
|
1578 |
|
789 | 1579 |
pvd = oldvd->vdev_parent; |
1580 |
||
2082 | 1581 |
if ((error = spa_config_parse(spa, &newrootvd, nvroot, NULL, 0, |
1582 |
VDEV_ALLOC_ADD)) != 0 || newrootvd->vdev_children != 1) |
|
789 | 1583 |
return (spa_vdev_exit(spa, newrootvd, txg, EINVAL)); |
1584 |
||
1585 |
newvd = newrootvd->vdev_child[0]; |
|
1586 |
||
1587 |
if (!newvd->vdev_ops->vdev_op_leaf) |
|
1588 |
return (spa_vdev_exit(spa, newrootvd, txg, EINVAL)); |
|
1589 |
||
2082 | 1590 |
if ((error = vdev_create(newrootvd, txg, replacing)) != 0) |
789 | 1591 |
return (spa_vdev_exit(spa, newrootvd, txg, error)); |
1592 |
||
2082 | 1593 |
if (!replacing) { |
1594 |
/* |
|
1595 |
* For attach, the only allowable parent is a mirror or the root |
|
1596 |
* vdev. |
|
1597 |
*/ |
|
1598 |
if (pvd->vdev_ops != &vdev_mirror_ops && |
|
1599 |
pvd->vdev_ops != &vdev_root_ops) |
|
1600 |
return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
|
1601 |
||
1602 |
pvops = &vdev_mirror_ops; |
|
1603 |
} else { |
|
1604 |
/* |
|
1605 |
* Active hot spares can only be replaced by inactive hot |
|
1606 |
* spares. |
|
1607 |
*/ |
|
1608 |
if (pvd->vdev_ops == &vdev_spare_ops && |
|
1609 |
pvd->vdev_child[1] == oldvd && |
|
1610 |
!spa_has_spare(spa, newvd->vdev_guid)) |
|
1611 |
return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
|
1612 |
||
1613 |
/* |
|
1614 |
* If the source is a hot spare, and the parent isn't already a |
|
1615 |
* spare, then we want to create a new hot spare. Otherwise, we |
|
1616 |
* want to create a replacing vdev. |
|
1617 |
*/ |
|
1618 |
if (pvd->vdev_ops == &vdev_replacing_ops) |
|
1619 |
return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
|
1620 |
else if (pvd->vdev_ops != &vdev_spare_ops && |
|
1621 |
newvd->vdev_isspare) |
|
1622 |
pvops = &vdev_spare_ops; |
|
1623 |
else |
|
1624 |
pvops = &vdev_replacing_ops; |
|
1625 |
} |
|
1626 |
||
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
|
1627 |
/* |
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
|
1628 |
* 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
|
1629 |
* 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
|
1630 |
*/ |
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
|
1631 |
if (newvd->vdev_psize < vdev_get_rsize(oldvd)) |
789 | 1632 |
return (spa_vdev_exit(spa, newrootvd, txg, EOVERFLOW)); |
1633 |
||
1732 | 1634 |
/* |
1635 |
* The new device cannot have a higher alignment requirement |
|
1636 |
* than the top-level vdev. |
|
1637 |
*/ |
|
1638 |
if (newvd->vdev_ashift > oldvd->vdev_top->vdev_ashift) |
|
789 | 1639 |
return (spa_vdev_exit(spa, newrootvd, txg, EDOM)); |
1640 |
||
1641 |
/* |
|
1642 |
* If this is an in-place replacement, update oldvd's path and devid |
|
1643 |
* to make it distinguishable from newvd, and unopenable from now on. |
|
1644 |
*/ |
|
1645 |
if (strcmp(oldvd->vdev_path, newvd->vdev_path) == 0) { |
|
1646 |
spa_strfree(oldvd->vdev_path); |
|
1647 |
oldvd->vdev_path = kmem_alloc(strlen(newvd->vdev_path) + 5, |
|
1648 |
KM_SLEEP); |
|
1649 |
(void) sprintf(oldvd->vdev_path, "%s/%s", |
|
1650 |
newvd->vdev_path, "old"); |
|
1651 |
if (oldvd->vdev_devid != NULL) { |
|
1652 |
spa_strfree(oldvd->vdev_devid); |
|
1653 |
oldvd->vdev_devid = NULL; |
|
1654 |
} |
|
1655 |
} |
|
1656 |
||
1657 |
/* |
|
2082 | 1658 |
* If the parent is not a mirror, or if we're replacing, insert the new |
1659 |
* mirror/replacing/spare vdev above oldvd. |
|
789 | 1660 |
*/ |
1661 |
if (pvd->vdev_ops != pvops) |
|
1662 |
pvd = vdev_add_parent(oldvd, pvops); |
|
1663 |
||
1664 |
ASSERT(pvd->vdev_top->vdev_parent == rvd); |
|
1665 |
ASSERT(pvd->vdev_ops == pvops); |
|
1666 |
ASSERT(oldvd->vdev_parent == pvd); |
|
1667 |
||
1668 |
/* |
|
1669 |
* Extract the new device from its root and add it to pvd. |
|
1670 |
*/ |
|
1671 |
vdev_remove_child(newrootvd, newvd); |
|
1672 |
newvd->vdev_id = pvd->vdev_children; |
|
1673 |
vdev_add_child(pvd, newvd); |
|
1674 |
||
1544 | 1675 |
/* |
1676 |
* If newvd is smaller than oldvd, but larger than its rsize, |
|
1677 |
* the addition of newvd may have decreased our parent's asize. |
|
1678 |
*/ |
|
1679 |
pvd->vdev_asize = MIN(pvd->vdev_asize, newvd->vdev_asize); |
|
1680 |
||
789 | 1681 |
tvd = newvd->vdev_top; |
1682 |
ASSERT(pvd->vdev_top == tvd); |
|
1683 |
ASSERT(tvd->vdev_parent == rvd); |
|
1684 |
||
1685 |
vdev_config_dirty(tvd); |
|
1686 |
||
1687 |
/* |
|
1688 |
* Set newvd's DTL to [TXG_INITIAL, open_txg]. It will propagate |
|
1689 |
* upward when spa_vdev_exit() calls vdev_dtl_reassess(). |
|
1690 |
*/ |
|
1691 |
open_txg = txg + TXG_CONCURRENT_STATES - 1; |
|
1692 |
||
1693 |
mutex_enter(&newvd->vdev_dtl_lock); |
|
1694 |
space_map_add(&newvd->vdev_dtl_map, TXG_INITIAL, |
|
1695 |
open_txg - TXG_INITIAL + 1); |
|
1696 |
mutex_exit(&newvd->vdev_dtl_lock); |
|
1697 |
||
1544 | 1698 |
dprintf("attached %s in txg %llu\n", newvd->vdev_path, txg); |
1699 |
||
789 | 1700 |
/* |
1701 |
* Mark newvd's DTL dirty in this txg. |
|
1702 |
*/ |
|
1732 | 1703 |
vdev_dirty(tvd, VDD_DTL, newvd, txg); |
789 | 1704 |
|
1705 |
(void) spa_vdev_exit(spa, newrootvd, open_txg, 0); |
|
1706 |
||
1707 |
/* |
|
1708 |
* Kick off a resilver to update newvd. |
|
1709 |
*/ |
|
1710 |
VERIFY(spa_scrub(spa, POOL_SCRUB_RESILVER, B_TRUE) == 0); |
|
1711 |
||
1712 |
return (0); |
|
1713 |
} |
|
1714 |
||
1715 |
/* |
|
1716 |
* Detach a device from a mirror or replacing vdev. |
|
1717 |
* If 'replace_done' is specified, only detach if the parent |
|
1718 |
* is a replacing vdev. |
|
1719 |
*/ |
|
1720 |
int |
|
1544 | 1721 |
spa_vdev_detach(spa_t *spa, uint64_t guid, int replace_done) |
789 | 1722 |
{ |
1723 |
uint64_t txg; |
|
1724 |
int c, t, error; |
|
1725 |
vdev_t *rvd = spa->spa_root_vdev; |
|
1726 |
vdev_t *vd, *pvd, *cvd, *tvd; |
|
2082 | 1727 |
boolean_t unspare = B_FALSE; |
1728 |
uint64_t unspare_guid; |
|
789 | 1729 |
|
1730 |
txg = spa_vdev_enter(spa); |
|
1731 |
||
1544 | 1732 |
vd = vdev_lookup_by_guid(rvd, guid); |
789 | 1733 |
|
1734 |
if (vd == NULL) |
|
1735 |
return (spa_vdev_exit(spa, NULL, txg, ENODEV)); |
|
1736 |
||
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1737 |
if (!vd->vdev_ops->vdev_op_leaf) |
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
1738 |
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
|
1739 |
|
789 | 1740 |
pvd = vd->vdev_parent; |
1741 |
||
1742 |
/* |
|
1743 |
* If replace_done is specified, only remove this device if it's |
|
2082 | 1744 |
* the first child of a replacing vdev. For the 'spare' vdev, either |
1745 |
* disk can be removed. |
|
789 | 1746 |
*/ |
2082 | 1747 |
if (replace_done) { |
1748 |
if (pvd->vdev_ops == &vdev_replacing_ops) { |
|
1749 |
if (vd->vdev_id != 0) |
|
1750 |
return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
|
1751 |
} else if (pvd->vdev_ops != &vdev_spare_ops) { |
|
1752 |
return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
|
1753 |
} |
|
1754 |
} |
|
1755 |
||
1756 |
ASSERT(pvd->vdev_ops != &vdev_spare_ops || |
|
1757 |
spa_version(spa) >= ZFS_VERSION_SPARES); |
|
789 | 1758 |
|
1759 |
/* |
|
2082 | 1760 |
* Only mirror, replacing, and spare vdevs support detach. |
789 | 1761 |
*/ |
1762 |
if (pvd->vdev_ops != &vdev_replacing_ops && |
|
2082 | 1763 |
pvd->vdev_ops != &vdev_mirror_ops && |
1764 |
pvd->vdev_ops != &vdev_spare_ops) |
|
789 | 1765 |
return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
1766 |
||
1767 |
/* |
|
1768 |
* If there's only one replica, you can't detach it. |
|
1769 |
*/ |
|
1770 |
if (pvd->vdev_children <= 1) |
|
1771 |
return (spa_vdev_exit(spa, NULL, txg, EBUSY)); |
|
1772 |
||
1773 |
/* |
|
1774 |
* If all siblings have non-empty DTLs, this device may have the only |
|
1775 |
* valid copy of the data, which means we cannot safely detach it. |
|
1776 |
* |
|
1777 |
* XXX -- as in the vdev_offline() case, we really want a more |
|
1778 |
* precise DTL check. |
|
1779 |
*/ |
|
1780 |
for (c = 0; c < pvd->vdev_children; c++) { |
|
1781 |
uint64_t dirty; |
|
1782 |
||
1783 |
cvd = pvd->vdev_child[c]; |
|
1784 |
if (cvd == vd) |
|
1785 |
continue; |
|
1786 |
if (vdev_is_dead(cvd)) |
|
1787 |
continue; |
|
1788 |
mutex_enter(&cvd->vdev_dtl_lock); |
|
1789 |
dirty = cvd->vdev_dtl_map.sm_space | |
|
1790 |
cvd->vdev_dtl_scrub.sm_space; |
|
1791 |
mutex_exit(&cvd->vdev_dtl_lock); |
|
1792 |
if (!dirty) |
|
1793 |
break; |
|
1794 |
} |
|
2082 | 1795 |
|
1796 |
/* |
|
1797 |
* If we are a replacing or spare vdev, then we can always detach the |
|
1798 |
* latter child, as that is how one cancels the operation. |
|
1799 |
*/ |
|
1800 |
if ((pvd->vdev_ops == &vdev_mirror_ops || vd->vdev_id != 1) && |
|
1801 |
c == pvd->vdev_children) |
|
789 | 1802 |
return (spa_vdev_exit(spa, NULL, txg, EBUSY)); |
1803 |
||
1804 |
/* |
|
2082 | 1805 |
* If we are detaching the original disk from a spare, then it implies |
1806 |
* that the spare should become a real disk, and be removed from the |
|
1807 |
* active spare list for the pool. |
|
1808 |
*/ |
|
1809 |
if (pvd->vdev_ops == &vdev_spare_ops && |
|
1810 |
vd->vdev_id == 0) |
|
1811 |
unspare = B_TRUE; |
|
1812 |
||
1813 |
/* |
|
789 | 1814 |
* Erase the disk labels so the disk can be used for other things. |
1815 |
* This must be done after all other error cases are handled, |
|
1816 |
* but before we disembowel vd (so we can still do I/O to it). |
|
1817 |
* But if we can't do it, don't treat the error as fatal -- |
|
1818 |
* it may be that the unwritability of the disk is the reason |
|
1819 |
* it's being detached! |
|
1820 |
*/ |
|
2082 | 1821 |
error = vdev_label_init(vd, 0, B_FALSE); |
789 | 1822 |
if (error) |
1823 |
dprintf("unable to erase labels on %s\n", vdev_description(vd)); |
|
1824 |
||
1825 |
/* |
|
1826 |
* Remove vd from its parent and compact the parent's children. |
|
1827 |
*/ |
|
1828 |
vdev_remove_child(pvd, vd); |
|
1829 |
vdev_compact_children(pvd); |
|
1830 |
||
1831 |
/* |
|
1832 |
* Remember one of the remaining children so we can get tvd below. |
|
1833 |
*/ |
|
1834 |
cvd = pvd->vdev_child[0]; |
|
1835 |
||
1836 |
/* |
|
2082 | 1837 |
* If we need to remove the remaining child from the list of hot spares, |
1838 |
* do it now, marking the vdev as no longer a spare in the process. We |
|
1839 |
* must do this before vdev_remove_parent(), because that can change the |
|
1840 |
* GUID if it creates a new toplevel GUID. |
|
1841 |
*/ |
|
1842 |
if (unspare) { |
|
1843 |
ASSERT(cvd->vdev_isspare); |
|
1844 |
spa_spare_remove(cvd->vdev_guid); |
|
1845 |
cvd->vdev_isspare = B_FALSE; |
|
1846 |
unspare_guid = cvd->vdev_guid; |
|
1847 |
} |
|
1848 |
||
1849 |
/* |
|
789 | 1850 |
* If the parent mirror/replacing vdev only has one child, |
1851 |
* the parent is no longer needed. Remove it from the tree. |
|
1852 |
*/ |
|
1853 |
if (pvd->vdev_children == 1) |
|
1854 |
vdev_remove_parent(cvd); |
|
1855 |
||
1856 |
/* |
|
1857 |
* We don't set tvd until now because the parent we just removed |
|
1858 |
* may have been the previous top-level vdev. |
|
1859 |
*/ |
|
1860 |
tvd = cvd->vdev_top; |
|
1861 |
ASSERT(tvd->vdev_parent == rvd); |
|
1862 |
||
1863 |
/* |
|
1864 |
* Reopen this top-level vdev to reassess health after detach. |
|
1865 |
*/ |
|
1544 | 1866 |
vdev_reopen(tvd); |
789 | 1867 |
|
1868 |
/* |
|
1869 |
* If the device we just detached was smaller than the others, |
|
1732 | 1870 |
* it may be possible to add metaslabs (i.e. grow the pool). |
1871 |
* vdev_metaslab_init() can't fail because the existing metaslabs |
|
1872 |
* are already in core, so there's nothing to read from disk. |
|
789 | 1873 |
*/ |
1732 | 1874 |
VERIFY(vdev_metaslab_init(tvd, txg) == 0); |
789 | 1875 |
|
1876 |
vdev_config_dirty(tvd); |
|
1877 |
||
1878 |
/* |
|
1879 |
* Mark vd's DTL as dirty in this txg. |
|
1880 |
* vdev_dtl_sync() will see that vd->vdev_detached is set |
|
1881 |
* and free vd's DTL object in syncing context. |
|
1882 |
* But first make sure we're not on any *other* txg's DTL list, |
|
1883 |
* to prevent vd from being accessed after it's freed. |
|
1884 |
*/ |
|
1885 |
for (t = 0; t < TXG_SIZE; t++) |
|
1886 |
(void) txg_list_remove_this(&tvd->vdev_dtl_list, vd, t); |
|
1732 | 1887 |
vd->vdev_detached = B_TRUE; |
1888 |
vdev_dirty(tvd, VDD_DTL, vd, txg); |
|
789 | 1889 |
|
1544 | 1890 |
dprintf("detached %s in txg %llu\n", vd->vdev_path, txg); |
789 | 1891 |
|
2082 | 1892 |
error = spa_vdev_exit(spa, vd, txg, 0); |
1893 |
||
1894 |
/* |
|
1895 |
* If we are supposed to remove the given vdev from the list of spares, |
|
1896 |
* iterate over all pools in the system and replace it if it's present. |
|
1897 |
*/ |
|
1898 |
if (unspare) { |
|
1899 |
spa = NULL; |
|
1900 |
mutex_enter(&spa_namespace_lock); |
|
1901 |
while ((spa = spa_next(spa)) != NULL) { |
|
1902 |
if (spa->spa_state != POOL_STATE_ACTIVE) |
|
1903 |
continue; |
|
1904 |
||
1905 |
(void) spa_vdev_remove(spa, unspare_guid, B_TRUE); |
|
1906 |
} |
|
1907 |
mutex_exit(&spa_namespace_lock); |
|
1908 |
} |
|
1909 |
||
1910 |
return (error); |
|
1911 |
} |
|
1912 |
||
1913 |
/* |
|
1914 |
* Remove a device from the pool. Currently, this supports removing only hot |
|
1915 |
* spares. |
|
1916 |
*/ |
|
1917 |
int |
|
1918 |
spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare) |
|
1919 |
{ |
|
1920 |
vdev_t *vd; |
|
1921 |
nvlist_t **spares, *nv, **newspares; |
|
1922 |
uint_t i, j, nspares; |
|
1923 |
int ret = 0; |
|
1924 |
||
1925 |
spa_config_enter(spa, RW_WRITER, FTAG); |
|
1926 |
||
1927 |
vd = spa_lookup_by_guid(spa, guid); |
|
1928 |
||
1929 |
nv = NULL; |
|
1930 |
if (spa->spa_spares != NULL && |
|
1931 |
nvlist_lookup_nvlist_array(spa->spa_sparelist, ZPOOL_CONFIG_SPARES, |
|
1932 |
&spares, &nspares) == 0) { |
|
1933 |
for (i = 0; i < nspares; i++) { |
|
1934 |
uint64_t theguid; |
|
1935 |
||
1936 |
VERIFY(nvlist_lookup_uint64(spares[i], |
|
1937 |
ZPOOL_CONFIG_GUID, &theguid) == 0); |
|
1938 |
if (theguid == guid) { |
|
1939 |
nv = spares[i]; |
|
1940 |
break; |
|
1941 |
} |
|
1942 |
} |
|
1943 |
} |
|
1944 |
||
1945 |
/* |
|
1946 |
* We only support removing a hot spare, and only if it's not currently |
|
1947 |
* in use in this pool. |
|
1948 |
*/ |
|
1949 |
if (nv == NULL && vd == NULL) { |
|
1950 |
ret = ENOENT; |
|
1951 |
goto out; |
|
1952 |
} |
|
1953 |
||
1954 |
if (nv == NULL && vd != NULL) { |
|
1955 |
ret = ENOTSUP; |
|
1956 |
goto out; |
|
1957 |
} |
|
1958 |
||
1959 |
if (!unspare && nv != NULL && vd != NULL) { |
|
1960 |
ret = EBUSY; |
|
1961 |
goto out; |
|
1962 |
} |
|
1963 |
||
1964 |
if (nspares == 1) { |
|
1965 |
newspares = NULL; |
|
1966 |
} else { |
|
1967 |
newspares = kmem_alloc((nspares - 1) * sizeof (void *), |
|
1968 |
KM_SLEEP); |
|
1969 |
for (i = 0, j = 0; i < nspares; i++) { |
|
1970 |
if (spares[i] != nv) |
|
1971 |
VERIFY(nvlist_dup(spares[i], |
|
1972 |
&newspares[j++], KM_SLEEP) == 0); |
|
1973 |
} |
|
1974 |
} |
|
1975 |
||
1976 |
VERIFY(nvlist_remove(spa->spa_sparelist, ZPOOL_CONFIG_SPARES, |
|
1977 |
DATA_TYPE_NVLIST_ARRAY) == 0); |
|
1978 |
VERIFY(nvlist_add_nvlist_array(spa->spa_sparelist, ZPOOL_CONFIG_SPARES, |
|
1979 |
newspares, nspares - 1) == 0); |
|
1980 |
for (i = 0; i < nspares - 1; i++) |
|
1981 |
nvlist_free(newspares[i]); |
|
1982 |
kmem_free(newspares, (nspares - 1) * sizeof (void *)); |
|
1983 |
spa_load_spares(spa); |
|
1984 |
spa->spa_sync_spares = B_TRUE; |
|
1985 |
||
1986 |
out: |
|
1987 |
spa_config_exit(spa, FTAG); |
|
1988 |
||
1989 |
return (ret); |
|
789 | 1990 |
} |
1991 |
||
1992 |
/* |
|
1544 | 1993 |
* Find any device that's done replacing, so we can detach it. |
789 | 1994 |
*/ |
1544 | 1995 |
static vdev_t * |
1996 |
spa_vdev_replace_done_hunt(vdev_t *vd) |
|
789 | 1997 |
{ |
1544 | 1998 |
vdev_t *newvd, *oldvd; |
789 | 1999 |
int c; |
2000 |
||
1544 | 2001 |
for (c = 0; c < vd->vdev_children; c++) { |
2002 |
oldvd = spa_vdev_replace_done_hunt(vd->vdev_child[c]); |
|
2003 |
if (oldvd != NULL) |
|
2004 |
return (oldvd); |
|
2005 |
} |
|
789 | 2006 |
|
2007 |
if (vd->vdev_ops == &vdev_replacing_ops && vd->vdev_children == 2) { |
|
1544 | 2008 |
oldvd = vd->vdev_child[0]; |
2009 |
newvd = vd->vdev_child[1]; |
|
789 | 2010 |
|
1544 | 2011 |
mutex_enter(&newvd->vdev_dtl_lock); |
2012 |
if (newvd->vdev_dtl_map.sm_space == 0 && |
|
2013 |
newvd->vdev_dtl_scrub.sm_space == 0) { |
|
2014 |
mutex_exit(&newvd->vdev_dtl_lock); |
|
2015 |
return (oldvd); |
|
2016 |
} |
|
2017 |
mutex_exit(&newvd->vdev_dtl_lock); |
|
2018 |
} |
|
789 | 2019 |
|
1544 | 2020 |
return (NULL); |
789 | 2021 |
} |
2022 |
||
1544 | 2023 |
static void |
789 | 2024 |
spa_vdev_replace_done(spa_t *spa) |
2025 |
{ |
|
1544 | 2026 |
vdev_t *vd; |
2082 | 2027 |
vdev_t *pvd; |
1544 | 2028 |
uint64_t guid; |
2082 | 2029 |
uint64_t pguid = 0; |
789 | 2030 |
|
1544 | 2031 |
spa_config_enter(spa, RW_READER, FTAG); |
789 | 2032 |
|
1544 | 2033 |
while ((vd = spa_vdev_replace_done_hunt(spa->spa_root_vdev)) != NULL) { |
2034 |
guid = vd->vdev_guid; |
|
2082 | 2035 |
/* |
2036 |
* If we have just finished replacing a hot spared device, then |
|
2037 |
* we need to detach the parent's first child (the original hot |
|
2038 |
* spare) as well. |
|
2039 |
*/ |
|
2040 |
pvd = vd->vdev_parent; |
|
2041 |
if (pvd->vdev_parent->vdev_ops == &vdev_spare_ops && |
|
2042 |
pvd->vdev_id == 0) { |
|
2043 |
ASSERT(pvd->vdev_ops == &vdev_replacing_ops); |
|
2044 |
ASSERT(pvd->vdev_parent->vdev_children == 2); |
|
2045 |
pguid = pvd->vdev_parent->vdev_child[1]->vdev_guid; |
|
2046 |
} |
|
1544 | 2047 |
spa_config_exit(spa, FTAG); |
2048 |
if (spa_vdev_detach(spa, guid, B_TRUE) != 0) |
|
2049 |
return; |
|
2082 | 2050 |
if (pguid != 0 && spa_vdev_detach(spa, pguid, B_TRUE) != 0) |
2051 |
return; |
|
1544 | 2052 |
spa_config_enter(spa, RW_READER, FTAG); |
789 | 2053 |
} |
2054 |
||
1544 | 2055 |
spa_config_exit(spa, FTAG); |
789 | 2056 |
} |
2057 |
||
2058 |
/* |
|
1354
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2059 |
* 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
|
2060 |
* on spa_vdev_enter/exit() to synchronize the labels and cache. |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2061 |
*/ |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2062 |
int |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2063 |
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
|
2064 |
{ |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2065 |
vdev_t *rvd, *vd; |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2066 |
uint64_t txg; |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2067 |
|
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2068 |
rvd = spa->spa_root_vdev; |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2069 |
|
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2070 |
txg = spa_vdev_enter(spa); |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2071 |
|
2082 | 2072 |
if ((vd = vdev_lookup_by_guid(rvd, guid)) == NULL) { |
2073 |
/* |
|
2074 |
* Determine if this is a reference to a hot spare. In that |
|
2075 |
* case, update the path as stored in the spare list. |
|
2076 |
*/ |
|
2077 |
nvlist_t **spares; |
|
2078 |
uint_t i, nspares; |
|
2079 |
if (spa->spa_sparelist != NULL) { |
|
2080 |
VERIFY(nvlist_lookup_nvlist_array(spa->spa_sparelist, |
|
2081 |
ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); |
|
2082 |
for (i = 0; i < nspares; i++) { |
|
2083 |
uint64_t theguid; |
|
2084 |
VERIFY(nvlist_lookup_uint64(spares[i], |
|
2085 |
ZPOOL_CONFIG_GUID, &theguid) == 0); |
|
2086 |
if (theguid == guid) |
|
2087 |
break; |
|
2088 |
} |
|
2089 |
||
2090 |
if (i == nspares) |
|
2091 |
return (spa_vdev_exit(spa, NULL, txg, ENOENT)); |
|
2092 |
||
2093 |
VERIFY(nvlist_add_string(spares[i], |
|
2094 |
ZPOOL_CONFIG_PATH, newpath) == 0); |
|
2095 |
spa_load_spares(spa); |
|
2096 |
spa->spa_sync_spares = B_TRUE; |
|
2097 |
return (spa_vdev_exit(spa, NULL, txg, 0)); |
|
2098 |
} else { |
|
2099 |
return (spa_vdev_exit(spa, NULL, txg, ENOENT)); |
|
2100 |
} |
|
2101 |
} |
|
1354
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2102 |
|
1585
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
2103 |
if (!vd->vdev_ops->vdev_op_leaf) |
4ad213e858a9
6395480 ztest ASSERT: rbt.bt_objset == wbt.bt_objset, line 2041
bonwick
parents:
1544
diff
changeset
|
2104 |
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
|
2105 |
|
1354
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2106 |
spa_strfree(vd->vdev_path); |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2107 |
vd->vdev_path = spa_strdup(newpath); |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2108 |
|
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2109 |
vdev_config_dirty(vd->vdev_top); |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2110 |
|
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2111 |
return (spa_vdev_exit(spa, NULL, txg, 0)); |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2112 |
} |
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2113 |
|
81359ee1ee63
6362672 import gets confused about overlapping slices
eschrock
parents:
1175
diff
changeset
|
2114 |
/* |
789 | 2115 |
* ========================================================================== |
2116 |
* SPA Scrubbing |
|
2117 |
* ========================================================================== |
|
2118 |
*/ |
|
2119 |
||
1544 | 2120 |
void |
2121 |
spa_scrub_throttle(spa_t *spa, int direction) |
|
2122 |
{ |
|
2123 |
mutex_enter(&spa->spa_scrub_lock); |
|
2124 |
spa->spa_scrub_throttled += direction; |
|
2125 |
ASSERT(spa->spa_scrub_throttled >= 0); |
|
2126 |
if (spa->spa_scrub_throttled == 0) |
|
2127 |
cv_broadcast(&spa->spa_scrub_io_cv); |
|
2128 |
mutex_exit(&spa->spa_scrub_lock); |
|
2129 |
} |
|
789 | 2130 |
|
2131 |
static void |
|
2132 |
spa_scrub_io_done(zio_t *zio) |
|
2133 |
{ |
|
2134 |
spa_t *spa = zio->io_spa; |
|
2135 |
||
3290 | 2136 |
zio_data_buf_free(zio->io_data, zio->io_size); |
789 | 2137 |
|
2138 |
mutex_enter(&spa->spa_scrub_lock); |
|
1544 | 2139 |
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
|
2140 |
vdev_t *vd = zio->io_vd ? zio->io_vd : spa->spa_root_vdev; |
789 | 2141 |
spa->spa_scrub_errors++; |
2142 |
mutex_enter(&vd->vdev_stat_lock); |
|
2143 |
vd->vdev_stat.vs_scrub_errors++; |
|
2144 |
mutex_exit(&vd->vdev_stat_lock); |
|
2145 |
} |
|
1544 | 2146 |
if (--spa->spa_scrub_inflight == 0) { |
2147 |
cv_broadcast(&spa->spa_scrub_io_cv); |
|
2148 |
ASSERT(spa->spa_scrub_throttled == 0); |
|
2149 |
} |
|
2150 |
mutex_exit(&spa->spa_scrub_lock); |
|
789 | 2151 |
} |
2152 |
||
2153 |
static void |
|
1544 | 2154 |
spa_scrub_io_start(spa_t *spa, blkptr_t *bp, int priority, int flags, |
2155 |
zbookmark_t *zb) |
|
789 | 2156 |
{ |
2157 |
size_t size = BP_GET_LSIZE(bp); |
|
3290 | 2158 |
void *data = zio_data_buf_alloc(size); |
789 | 2159 |
|
2160 |
mutex_enter(&spa->spa_scrub_lock); |
|
2161 |
spa->spa_scrub_inflight++; |
|
2162 |
mutex_exit(&spa->spa_scrub_lock); |
|
2163 |
||
1544 | 2164 |
if (zb->zb_level == -1 && BP_GET_TYPE(bp) != DMU_OT_OBJSET) |
2165 |
flags |= ZIO_FLAG_SPECULATIVE; /* intent log block */ |
|
2166 |
||
1807
35c8b566d7af
6410711 intent log blocks don't get invited to pool parties
bonwick
parents:
1775
diff
changeset
|
2167 |
flags |= ZIO_FLAG_SCRUB_THREAD | ZIO_FLAG_CANFAIL; |
1544 | 2168 |
|
789 | 2169 |
zio_nowait(zio_read(NULL, spa, bp, data, size, |
1544 | 2170 |
spa_scrub_io_done, NULL, priority, flags, zb)); |
789 | 2171 |
} |
2172 |
||
2173 |
/* ARGSUSED */ |
|
2174 |
static int |
|
2175 |
spa_scrub_cb(traverse_blk_cache_t *bc, spa_t *spa, void *a) |
|
2176 |
{ |
|
2177 |
blkptr_t *bp = &bc->bc_blkptr; |
|
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2178 |
vdev_t *vd = spa->spa_root_vdev; |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2179 |
dva_t *dva = bp->blk_dva; |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2180 |
int needs_resilver = B_FALSE; |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2181 |
int d; |
789 | 2182 |
|
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2183 |
if (bc->bc_errno) { |
789 | 2184 |
/* |
2185 |
* We can't scrub this block, but we can continue to scrub |
|
2186 |
* the rest of the pool. Note the error and move along. |
|
2187 |
*/ |
|
2188 |
mutex_enter(&spa->spa_scrub_lock); |
|
2189 |
spa->spa_scrub_errors++; |
|
2190 |
mutex_exit(&spa->spa_scrub_lock); |
|
2191 |
||
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2192 |
mutex_enter(&vd->vdev_stat_lock); |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2193 |
vd->vdev_stat.vs_scrub_errors++; |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2194 |
mutex_exit(&vd->vdev_stat_lock); |
789 | 2195 |
|
2196 |
return (ERESTART); |
|
2197 |
} |
|
2198 |
||
2199 |
ASSERT(bp->blk_birth < spa->spa_scrub_maxtxg); |
|
2200 |
||
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2201 |
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
|
2202 |
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
|
2203 |
|
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2204 |
ASSERT(vd != NULL); |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2205 |
|
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2206 |
/* |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2207 |
* 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
|
2208 |
* 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
|
2209 |
*/ |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2210 |
mutex_enter(&vd->vdev_stat_lock); |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2211 |
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
|
2212 |
mutex_exit(&vd->vdev_stat_lock); |
789 | 2213 |
|
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2214 |
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
|
2215 |
if (DVA_GET_GANG(&dva[d])) { |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2216 |
/* |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2217 |
* Gang members may be spread across multiple |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2218 |
* 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
|
2219 |
* pool-wide DTL. |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2220 |
* 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
|
2221 |
* 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
|
2222 |
* happen. |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2223 |
*/ |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2224 |
vd = spa->spa_root_vdev; |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2225 |
} |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2226 |
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
|
2227 |
bp->blk_birth, 1)) |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2228 |
needs_resilver = B_TRUE; |
789 | 2229 |
} |
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2230 |
} |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2231 |
|
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2232 |
if (spa->spa_scrub_type == POOL_SCRUB_EVERYTHING) |
789 | 2233 |
spa_scrub_io_start(spa, bp, ZIO_PRIORITY_SCRUB, |
1544 | 2234 |
ZIO_FLAG_SCRUB, &bc->bc_bookmark); |
1775
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2235 |
else if (needs_resilver) |
e51e26b432c0
6410698 ZFS metadata needs to be more highly replicated (ditto blocks)
billm
parents:
1760
diff
changeset
|
2236 |
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
|
2237 |
ZIO_FLAG_RESILVER, &bc->bc_bookmark); |
789 | 2238 |
|
2239 |
return (0); |
|
2240 |
} |
|
2241 |
||
2242 |
static void |
|
2243 |
spa_scrub_thread(spa_t *spa) |
|
2244 |
{ |
|
2245 |
callb_cpr_t cprinfo; |
|
2246 |
traverse_handle_t *th = spa->spa_scrub_th; |
|
2247 |
vdev_t *rvd = spa->spa_root_vdev; |
|
2248 |
pool_scrub_type_t scrub_type = spa->spa_scrub_type; |
|
2249 |
int error = 0; |
|
2250 |
boolean_t complete; |
|
2251 |
||
2252 |
CALLB_CPR_INIT(&cprinfo, &spa->spa_scrub_lock, callb_generic_cpr, FTAG); |
|
2253 |
||
797
af56ba8b7e41
6344108 snapshot create/delete interlock with scrub/resilver must sync txg
bonwick
parents:
789
diff
changeset
|
2254 |
/* |
af56ba8b7e41
6344108 snapshot create/delete interlock with scrub/resilver must sync txg
bonwick
parents:
789
diff
changeset
|
2255 |
* 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
|
2256 |
* wait for that to complete. |
af56ba8b7e41
6344108 snapshot create/delete interlock with scrub/resilver must sync txg
bonwick
parents:
789
diff
changeset
|
2257 |
*/ |
af56ba8b7e41
6344108 snapshot create/delete interlock with scrub/resilver must sync txg
bonwick
parents:
789
diff
changeset
|
2258 |
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
|
2259 |
|
1544 | 2260 |
dprintf("start %s mintxg=%llu maxtxg=%llu\n", |
2261 |
scrub_type == POOL_SCRUB_RESILVER ? "resilver" : "scrub", |
|
2262 |
spa->spa_scrub_mintxg, spa->spa_scrub_maxtxg); |
|
2263 |
||
2264 |
spa_config_enter(spa, RW_WRITER, FTAG); |
|
2265 |
vdev_reopen(rvd); /* purge all vdev caches */ |
|
789 | 2266 |
vdev_config_dirty(rvd); /* rewrite all disk labels */ |
2267 |
vdev_scrub_stat_update(rvd, scrub_type, B_FALSE); |
|
1544 | 2268 |
spa_config_exit(spa, FTAG); |
789 | 2269 |
|
2270 |
mutex_enter(&spa->spa_scrub_lock); |
|
2271 |
spa->spa_scrub_errors = 0; |
|
2272 |
spa->spa_scrub_active = 1; |
|
1544 | 2273 |
ASSERT(spa->spa_scrub_inflight == 0); |
2274 |
ASSERT(spa->spa_scrub_throttled == 0); |
|
789 | 2275 |
|
2276 |
while (!spa->spa_scrub_stop) { |
|
2277 |
CALLB_CPR_SAFE_BEGIN(&cprinfo); |
|
1544 | 2278 |
while (spa->spa_scrub_suspended) { |
789 | 2279 |
spa->spa_scrub_active = 0; |
2280 |
cv_broadcast(&spa->spa_scrub_cv); |
|
2281 |
cv_wait(&spa->spa_scrub_cv, &spa->spa_scrub_lock); |
|
2282 |
spa->spa_scrub_active = 1; |
|
2283 |
} |
|
2284 |
CALLB_CPR_SAFE_END(&cprinfo, &spa->spa_scrub_lock); |
|
2285 |
||
2286 |
if (spa->spa_scrub_restart_txg != 0) |
|
2287 |
break; |
|
2288 |
||
2289 |
mutex_exit(&spa->spa_scrub_lock); |
|
2290 |
error = traverse_more(th); |
|
2291 |
mutex_enter(&spa->spa_scrub_lock); |
|
2292 |
if (error != EAGAIN) |
|
2293 |
break; |
|
1544 | 2294 |
|
2295 |
while (spa->spa_scrub_throttled > 0) |
|
2296 |
cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); |
|
789 | 2297 |
} |
2298 |
||
2299 |
while (spa->spa_scrub_inflight) |
|
2300 |
cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); |
|
2301 |
||
1601
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2302 |
spa->spa_scrub_active = 0; |
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2303 |
cv_broadcast(&spa->spa_scrub_cv); |
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2304 |
|
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2305 |
mutex_exit(&spa->spa_scrub_lock); |
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2306 |
|
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2307 |
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
|
2308 |
|
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2309 |
mutex_enter(&spa->spa_scrub_lock); |
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2310 |
|
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2311 |
/* |
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2312 |
* 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
|
2313 |
* 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
|
2314 |
* 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
|
2315 |
*/ |
789 | 2316 |
if (spa->spa_scrub_restart_txg != 0) |
2317 |
error = ERESTART; |
|
2318 |
||
1544 | 2319 |
if (spa->spa_scrub_stop) |
2320 |
error = EINTR; |
|
2321 |
||
789 | 2322 |
/* |
1544 | 2323 |
* Even if there were uncorrectable errors, we consider the scrub |
2324 |
* completed. The downside is that if there is a transient error during |
|
2325 |
* a resilver, we won't resilver the data properly to the target. But |
|
2326 |
* if the damage is permanent (more likely) we will resilver forever, |
|
2327 |
* which isn't really acceptable. Since there is enough information for |
|
2328 |
* the user to know what has failed and why, this seems like a more |
|
2329 |
* tractable approach. |
|
789 | 2330 |
*/ |
1544 | 2331 |
complete = (error == 0); |
789 | 2332 |
|
1544 | 2333 |
dprintf("end %s to maxtxg=%llu %s, traverse=%d, %llu errors, stop=%u\n", |
2334 |
scrub_type == POOL_SCRUB_RESILVER ? "resilver" : "scrub", |
|
789 | 2335 |
spa->spa_scrub_maxtxg, complete ? "done" : "FAILED", |
2336 |
error, spa->spa_scrub_errors, spa->spa_scrub_stop); |
|
2337 |
||
2338 |
mutex_exit(&spa->spa_scrub_lock); |
|
2339 |
||
2340 |
/* |
|
2341 |
* If the scrub/resilver completed, update all DTLs to reflect this. |
|
2342 |
* Whether it succeeded or not, vacate all temporary scrub DTLs. |
|
2343 |
*/ |
|
2344 |
vdev_dtl_reassess(rvd, spa_last_synced_txg(spa) + 1, |
|
2345 |
complete ? spa->spa_scrub_maxtxg : 0, B_TRUE); |
|
2346 |
vdev_scrub_stat_update(rvd, POOL_SCRUB_NONE, complete); |
|
1544 | 2347 |
spa_errlog_rotate(spa); |
1601
438b928f80c7
6397197 ADVANCE_ZIL should only visit claimed-but-not-yet-replayed logs
bonwick
parents:
1585
diff
changeset
|
2348 |
|
1544 | 2349 |
spa_config_exit(spa, FTAG); |
789 | 2350 |
|
2351 |
mutex_enter(&spa->spa_scrub_lock); |
|
2352 |
||
1544 | 2353 |
/* |
2354 |
* We may have finished replacing a device. |
|
2355 |
* Let the async thread assess this and handle the detach. |
|
2356 |
*/ |
|
2357 |
spa_async_request(spa, SPA_ASYNC_REPLACE_DONE); |
|
789 | 2358 |
|
2359 |
/* |
|
2360 |
* If we were told to restart, our final act is to start a new scrub. |
|
2361 |
*/ |
|
2362 |
if (error == ERESTART) |
|
1544 | 2363 |
spa_async_request(spa, scrub_type == POOL_SCRUB_RESILVER ? |
2364 |
SPA_ASYNC_RESILVER : SPA_ASYNC_SCRUB); |
|
789 | 2365 |
|
1544 | 2366 |
spa->spa_scrub_type = POOL_SCRUB_NONE; |
2367 |
spa->spa_scrub_active = 0; |
|
2368 |
spa->spa_scrub_thread = NULL; |
|
2369 |
cv_broadcast(&spa->spa_scrub_cv); |
|
789 | 2370 |
CALLB_CPR_EXIT(&cprinfo); /* drops &spa->spa_scrub_lock */ |
2371 |
thread_exit(); |
|
2372 |
} |
|
2373 |
||
2374 |
void |
|
2375 |
spa_scrub_suspend(spa_t *spa) |
|
2376 |
{ |
|
2377 |
mutex_enter(&spa->spa_scrub_lock); |
|
1544 | 2378 |
spa->spa_scrub_suspended++; |
789 | 2379 |
while (spa->spa_scrub_active) { |
2380 |
cv_broadcast(&spa->spa_scrub_cv); |
|
2381 |
cv_wait(&spa->spa_scrub_cv, &spa->spa_scrub_lock); |
|
2382 |
} |
|
2383 |
while (spa->spa_scrub_inflight) |
|
2384 |
cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); |
|
2385 |
mutex_exit(&spa->spa_scrub_lock); |
|
2386 |
} |
|
2387 |
||
2388 |
void |
|
2389 |
spa_scrub_resume(spa_t *spa) |
|
2390 |
{ |
|
2391 |
mutex_enter(&spa->spa_scrub_lock); |
|
1544 | 2392 |
ASSERT(spa->spa_scrub_suspended != 0); |
2393 |
if (--spa->spa_scrub_suspended == 0) |
|
789 | 2394 |
cv_broadcast(&spa->spa_scrub_cv); |
2395 |
mutex_exit(&spa->spa_scrub_lock); |
|
2396 |
} |
|
2397 |
||
2398 |
void |
|
2399 |
spa_scrub_restart(spa_t *spa, uint64_t txg) |
|
2400 |
{ |
|
2401 |
/* |
|
2402 |
* Something happened (e.g. snapshot create/delete) that means |
|
2403 |
* we must restart any in-progress scrubs. The itinerary will |
|
2404 |
* fix this properly. |
|
2405 |
*/ |
|
2406 |
mutex_enter(&spa->spa_scrub_lock); |
|
2407 |
spa->spa_scrub_restart_txg = txg; |
|
2408 |
mutex_exit(&spa->spa_scrub_lock); |
|
2409 |
} |
|
2410 |
||
1544 | 2411 |
int |
2412 |
spa_scrub(spa_t *spa, pool_scrub_type_t type, boolean_t force) |
|
789 | 2413 |
{ |
2414 |
space_seg_t *ss; |
|
2415 |
uint64_t mintxg, maxtxg; |
|
2416 |
vdev_t *rvd = spa->spa_root_vdev; |
|
2417 |
||
2418 |
if ((uint_t)type >= POOL_SCRUB_TYPES) |
|
2419 |
return (ENOTSUP); |
|
2420 |
||
1544 | 2421 |
mutex_enter(&spa->spa_scrub_lock); |
2422 |
||
789 | 2423 |
/* |
2424 |
* If there's a scrub or resilver already in progress, stop it. |
|
2425 |
*/ |
|
2426 |
while (spa->spa_scrub_thread != NULL) { |
|
2427 |
/* |
|
2428 |
* Don't stop a resilver unless forced. |
|
2429 |
*/ |
|
1544 | 2430 |
if (spa->spa_scrub_type == POOL_SCRUB_RESILVER && !force) { |
2431 |
mutex_exit(&spa->spa_scrub_lock); |
|
789 | 2432 |
return (EBUSY); |
1544 | 2433 |
} |
789 | 2434 |
spa->spa_scrub_stop = 1; |
2435 |
cv_broadcast(&spa->spa_scrub_cv); |
|
2436 |
cv_wait(&spa->spa_scrub_cv, &spa->spa_scrub_lock); |
|
2437 |
} |
|
2438 |
||
2439 |
/* |
|
2440 |
* Terminate the previous traverse. |
|
2441 |
*/ |
|
2442 |
if (spa->spa_scrub_th != NULL) { |
|
2443 |
traverse_fini(spa->spa_scrub_th); |
|
2444 |
spa->spa_scrub_th = NULL; |
|
2445 |
} |
|
2446 |
||
1544 | 2447 |
if (rvd == NULL) { |
2448 |
ASSERT(spa->spa_scrub_stop == 0); |
|
2449 |
ASSERT(spa->spa_scrub_type == type); |
|
2450 |
ASSERT(spa->spa_scrub_restart_txg == 0); |
|
2451 |
mutex_exit(&spa->spa_scrub_lock); |
|
2452 |
return (0); |
|
2453 |
} |
|
789 | 2454 |
|
2455 |
mintxg = TXG_INITIAL - 1; |
|
2456 |
maxtxg = spa_last_synced_txg(spa) + 1; |
|
2457 |
||
1544 | 2458 |
mutex_enter(&rvd->vdev_dtl_lock); |
789 | 2459 |
|
1544 | 2460 |
if (rvd->vdev_dtl_map.sm_space == 0) { |
2461 |
/* |
|
2462 |
* The pool-wide DTL is empty. |
|
1732 | 2463 |
* If this is a resilver, there's nothing to do except |
2464 |
* check whether any in-progress replacements have completed. |
|
1544 | 2465 |
*/ |
1732 | 2466 |
if (type == POOL_SCRUB_RESILVER) { |
1544 | 2467 |
type = POOL_SCRUB_NONE; |
1732 | 2468 |
spa_async_request(spa, SPA_ASYNC_REPLACE_DONE); |
2469 |
} |
|
1544 | 2470 |
} else { |
2471 |
/* |
|
2472 |
* The pool-wide DTL is non-empty. |
|
2473 |
* If this is a normal scrub, upgrade to a resilver instead. |
|
2474 |
*/ |
|
2475 |
if (type == POOL_SCRUB_EVERYTHING) |
|
2476 |
type = POOL_SCRUB_RESILVER; |
|
2477 |
} |
|
789 | 2478 |
|
1544 | 2479 |
if (type == POOL_SCRUB_RESILVER) { |
789 | 2480 |
/* |
2481 |
* Determine the resilvering boundaries. |
|
2482 |
* |
|
2483 |
* Note: (mintxg, maxtxg) is an open interval, |
|
2484 |
* i.e. mintxg and maxtxg themselves are not included. |
|
2485 |
* |
|
2486 |
* Note: for maxtxg, we MIN with spa_last_synced_txg(spa) + 1 |
|
2487 |
* so we don't claim to resilver a txg that's still changing. |
|
2488 |
*/ |
|
2489 |
ss = avl_first(&rvd->vdev_dtl_map.sm_root); |
|
1544 | 2490 |
mintxg = ss->ss_start - 1; |
789 | 2491 |
ss = avl_last(&rvd->vdev_dtl_map.sm_root); |
1544 | 2492 |
maxtxg = MIN(ss->ss_end, maxtxg); |
789 | 2493 |
} |
2494 |
||
1544 | 2495 |
mutex_exit(&rvd->vdev_dtl_lock); |
2496 |
||
2497 |
spa->spa_scrub_stop = 0; |
|
2498 |
spa->spa_scrub_type = type; |
|
2499 |
spa->spa_scrub_restart_txg = 0; |
|
2500 |
||
2501 |
if (type != POOL_SCRUB_NONE) { |
|
2502 |
spa->spa_scrub_mintxg = mintxg; |
|
789 | 2503 |
spa->spa_scrub_maxtxg = maxtxg; |
2504 |
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
|
2505 |
ADVANCE_PRE | ADVANCE_PRUNE | ADVANCE_ZIL, |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2506 |
ZIO_FLAG_CANFAIL); |
789 | 2507 |
traverse_add_pool(spa->spa_scrub_th, mintxg, maxtxg); |
2508 |
spa->spa_scrub_thread = thread_create(NULL, 0, |
|
2509 |
spa_scrub_thread, spa, 0, &p0, TS_RUN, minclsyspri); |
|
2510 |
} |
|
2511 |
||
1544 | 2512 |
mutex_exit(&spa->spa_scrub_lock); |
2513 |
||
789 | 2514 |
return (0); |
2515 |
} |
|
2516 |
||
1544 | 2517 |
/* |
2518 |
* ========================================================================== |
|
2519 |
* SPA async task processing |
|
2520 |
* ========================================================================== |
|
2521 |
*/ |
|
2522 |
||
2523 |
static void |
|
2524 |
spa_async_reopen(spa_t *spa) |
|
789 | 2525 |
{ |
1544 | 2526 |
vdev_t *rvd = spa->spa_root_vdev; |
2527 |
vdev_t *tvd; |
|
2528 |
int c; |
|
2529 |
||
2530 |
spa_config_enter(spa, RW_WRITER, FTAG); |
|
2531 |
||
2532 |
for (c = 0; c < rvd->vdev_children; c++) { |
|
2533 |
tvd = rvd->vdev_child[c]; |
|
2534 |
if (tvd->vdev_reopen_wanted) { |
|
2535 |
tvd->vdev_reopen_wanted = 0; |
|
2536 |
vdev_reopen(tvd); |
|
2537 |
} |
|
2538 |
} |
|
789 | 2539 |
|
1544 | 2540 |
spa_config_exit(spa, FTAG); |
2541 |
} |
|
2542 |
||
2543 |
static void |
|
2544 |
spa_async_thread(spa_t *spa) |
|
2545 |
{ |
|
2546 |
int tasks; |
|
2547 |
||
2548 |
ASSERT(spa->spa_sync_on); |
|
789 | 2549 |
|
1544 | 2550 |
mutex_enter(&spa->spa_async_lock); |
2551 |
tasks = spa->spa_async_tasks; |
|
2552 |
spa->spa_async_tasks = 0; |
|
2553 |
mutex_exit(&spa->spa_async_lock); |
|
2554 |
||
2555 |
/* |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2556 |
* 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
|
2557 |
*/ |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2558 |
if (tasks & SPA_ASYNC_CONFIG_UPDATE) { |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2559 |
mutex_enter(&spa_namespace_lock); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2560 |
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
|
2561 |
mutex_exit(&spa_namespace_lock); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2562 |
} |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2563 |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2564 |
/* |
1544 | 2565 |
* See if any devices need to be reopened. |
2566 |
*/ |
|
2567 |
if (tasks & SPA_ASYNC_REOPEN) |
|
2568 |
spa_async_reopen(spa); |
|
2569 |
||
2570 |
/* |
|
2571 |
* If any devices are done replacing, detach them. |
|
2572 |
*/ |
|
2573 |
if (tasks & SPA_ASYNC_REPLACE_DONE) |
|
789 | 2574 |
spa_vdev_replace_done(spa); |
2575 |
||
1544 | 2576 |
/* |
2577 |
* Kick off a scrub. |
|
2578 |
*/ |
|
2579 |
if (tasks & SPA_ASYNC_SCRUB) |
|
2580 |
VERIFY(spa_scrub(spa, POOL_SCRUB_EVERYTHING, B_TRUE) == 0); |
|
2581 |
||
2582 |
/* |
|
2583 |
* Kick off a resilver. |
|
2584 |
*/ |
|
2585 |
if (tasks & SPA_ASYNC_RESILVER) |
|
2586 |
VERIFY(spa_scrub(spa, POOL_SCRUB_RESILVER, B_TRUE) == 0); |
|
2587 |
||
2588 |
/* |
|
2589 |
* Let the world know that we're done. |
|
2590 |
*/ |
|
2591 |
mutex_enter(&spa->spa_async_lock); |
|
2592 |
spa->spa_async_thread = NULL; |
|
2593 |
cv_broadcast(&spa->spa_async_cv); |
|
2594 |
mutex_exit(&spa->spa_async_lock); |
|
2595 |
thread_exit(); |
|
2596 |
} |
|
2597 |
||
2598 |
void |
|
2599 |
spa_async_suspend(spa_t *spa) |
|
2600 |
{ |
|
2601 |
mutex_enter(&spa->spa_async_lock); |
|
2602 |
spa->spa_async_suspended++; |
|
2603 |
while (spa->spa_async_thread != NULL) |
|
2604 |
cv_wait(&spa->spa_async_cv, &spa->spa_async_lock); |
|
2605 |
mutex_exit(&spa->spa_async_lock); |
|
2606 |
} |
|
2607 |
||
2608 |
void |
|
2609 |
spa_async_resume(spa_t *spa) |
|
2610 |
{ |
|
2611 |
mutex_enter(&spa->spa_async_lock); |
|
2612 |
ASSERT(spa->spa_async_suspended != 0); |
|
2613 |
spa->spa_async_suspended--; |
|
2614 |
mutex_exit(&spa->spa_async_lock); |
|
2615 |
} |
|
2616 |
||
2617 |
static void |
|
2618 |
spa_async_dispatch(spa_t *spa) |
|
2619 |
{ |
|
2620 |
mutex_enter(&spa->spa_async_lock); |
|
2621 |
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
|
2622 |
spa->spa_async_thread == NULL && |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2623 |
rootdir != NULL && !vn_is_readonly(rootdir)) |
1544 | 2624 |
spa->spa_async_thread = thread_create(NULL, 0, |
2625 |
spa_async_thread, spa, 0, &p0, TS_RUN, maxclsyspri); |
|
2626 |
mutex_exit(&spa->spa_async_lock); |
|
2627 |
} |
|
2628 |
||
2629 |
void |
|
2630 |
spa_async_request(spa_t *spa, int task) |
|
2631 |
{ |
|
2632 |
mutex_enter(&spa->spa_async_lock); |
|
2633 |
spa->spa_async_tasks |= task; |
|
2634 |
mutex_exit(&spa->spa_async_lock); |
|
789 | 2635 |
} |
2636 |
||
2637 |
/* |
|
2638 |
* ========================================================================== |
|
2639 |
* SPA syncing routines |
|
2640 |
* ========================================================================== |
|
2641 |
*/ |
|
2642 |
||
2643 |
static void |
|
2644 |
spa_sync_deferred_frees(spa_t *spa, uint64_t txg) |
|
2645 |
{ |
|
2646 |
bplist_t *bpl = &spa->spa_sync_bplist; |
|
2647 |
dmu_tx_t *tx; |
|
2648 |
blkptr_t blk; |
|
2649 |
uint64_t itor = 0; |
|
2650 |
zio_t *zio; |
|
2651 |
int error; |
|
2652 |
uint8_t c = 1; |
|
2653 |
||
2654 |
zio = zio_root(spa, NULL, NULL, ZIO_FLAG_CONFIG_HELD); |
|
2655 |
||
2656 |
while (bplist_iterate(bpl, &itor, &blk) == 0) |
|
2657 |
zio_nowait(zio_free(zio, spa, txg, &blk, NULL, NULL)); |
|
2658 |
||
2659 |
error = zio_wait(zio); |
|
2660 |
ASSERT3U(error, ==, 0); |
|
2661 |
||
2662 |
tx = dmu_tx_create_assigned(spa->spa_dsl_pool, txg); |
|
2663 |
bplist_vacate(bpl, tx); |
|
2664 |
||
2665 |
/* |
|
2666 |
* Pre-dirty the first block so we sync to convergence faster. |
|
2667 |
* (Usually only the first block is needed.) |
|
2668 |
*/ |
|
2669 |
dmu_write(spa->spa_meta_objset, spa->spa_sync_bplist_obj, 0, 1, &c, tx); |
|
2670 |
dmu_tx_commit(tx); |
|
2671 |
} |
|
2672 |
||
2673 |
static void |
|
2082 | 2674 |
spa_sync_nvlist(spa_t *spa, uint64_t obj, nvlist_t *nv, dmu_tx_t *tx) |
2675 |
{ |
|
2676 |
char *packed = NULL; |
|
2677 |
size_t nvsize = 0; |
|
2678 |
dmu_buf_t *db; |
|
2679 |
||
2680 |
VERIFY(nvlist_size(nv, &nvsize, NV_ENCODE_XDR) == 0); |
|
2681 |
||
2682 |
packed = kmem_alloc(nvsize, KM_SLEEP); |
|
2683 |
||
2684 |
VERIFY(nvlist_pack(nv, &packed, &nvsize, NV_ENCODE_XDR, |
|
2685 |
KM_SLEEP) == 0); |
|
2686 |
||
2687 |
dmu_write(spa->spa_meta_objset, obj, 0, nvsize, packed, tx); |
|
2688 |
||
2689 |
kmem_free(packed, nvsize); |
|
2690 |
||
2691 |
VERIFY(0 == dmu_bonus_hold(spa->spa_meta_objset, obj, FTAG, &db)); |
|
2692 |
dmu_buf_will_dirty(db, tx); |
|
2693 |
*(uint64_t *)db->db_data = nvsize; |
|
2694 |
dmu_buf_rele(db, FTAG); |
|
2695 |
} |
|
2696 |
||
2697 |
static void |
|
2698 |
spa_sync_spares(spa_t *spa, dmu_tx_t *tx) |
|
2699 |
{ |
|
2700 |
nvlist_t *nvroot; |
|
2701 |
nvlist_t **spares; |
|
2702 |
int i; |
|
2703 |
||
2704 |
if (!spa->spa_sync_spares) |
|
2705 |
return; |
|
2706 |
||
2707 |
/* |
|
2708 |
* Update the MOS nvlist describing the list of available spares. |
|
2709 |
* spa_validate_spares() will have already made sure this nvlist is |
|
2710 |
* valid and the vdevs are labelled appropriately. |
|
2711 |
*/ |
|
2712 |
if (spa->spa_spares_object == 0) { |
|
2713 |
spa->spa_spares_object = dmu_object_alloc(spa->spa_meta_objset, |
|
2714 |
DMU_OT_PACKED_NVLIST, 1 << 14, |
|
2715 |
DMU_OT_PACKED_NVLIST_SIZE, sizeof (uint64_t), tx); |
|
2716 |
VERIFY(zap_update(spa->spa_meta_objset, |
|
2717 |
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SPARES, |
|
2718 |
sizeof (uint64_t), 1, &spa->spa_spares_object, tx) == 0); |
|
2719 |
} |
|
2720 |
||
2721 |
VERIFY(nvlist_alloc(&nvroot, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
|
2722 |
if (spa->spa_nspares == 0) { |
|
2723 |
VERIFY(nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, |
|
2724 |
NULL, 0) == 0); |
|
2725 |
} else { |
|
2726 |
spares = kmem_alloc(spa->spa_nspares * sizeof (void *), |
|
2727 |
KM_SLEEP); |
|
2728 |
for (i = 0; i < spa->spa_nspares; i++) |
|
2729 |
spares[i] = vdev_config_generate(spa, |
|
2730 |
spa->spa_spares[i], B_FALSE, B_TRUE); |
|
2731 |
VERIFY(nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, |
|
2732 |
spares, spa->spa_nspares) == 0); |
|
2733 |
for (i = 0; i < spa->spa_nspares; i++) |
|
2734 |
nvlist_free(spares[i]); |
|
2735 |
kmem_free(spares, spa->spa_nspares * sizeof (void *)); |
|
2736 |
} |
|
2737 |
||
2738 |
spa_sync_nvlist(spa, spa->spa_spares_object, nvroot, tx); |
|
2926 | 2739 |
nvlist_free(nvroot); |
2082 | 2740 |
|
2741 |
spa->spa_sync_spares = B_FALSE; |
|
2742 |
} |
|
2743 |
||
2744 |
static void |
|
789 | 2745 |
spa_sync_config_object(spa_t *spa, dmu_tx_t *tx) |
2746 |
{ |
|
2747 |
nvlist_t *config; |
|
2748 |
||
2749 |
if (list_is_empty(&spa->spa_dirty_list)) |
|
2750 |
return; |
|
2751 |
||
2752 |
config = spa_config_generate(spa, NULL, dmu_tx_get_txg(tx), B_FALSE); |
|
2753 |
||
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2754 |
if (spa->spa_config_syncing) |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2755 |
nvlist_free(spa->spa_config_syncing); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2756 |
spa->spa_config_syncing = config; |
789 | 2757 |
|
2082 | 2758 |
spa_sync_nvlist(spa, spa->spa_config_object, config, tx); |
789 | 2759 |
} |
2760 |
||
2761 |
/* |
|
2762 |
* Sync the specified transaction group. New blocks may be dirtied as |
|
2763 |
* part of the process, so we iterate until it converges. |
|
2764 |
*/ |
|
2765 |
void |
|
2766 |
spa_sync(spa_t *spa, uint64_t txg) |
|
2767 |
{ |
|
2768 |
dsl_pool_t *dp = spa->spa_dsl_pool; |
|
2769 |
objset_t *mos = spa->spa_meta_objset; |
|
2770 |
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
|
2771 |
vdev_t *rvd = spa->spa_root_vdev; |
789 | 2772 |
vdev_t *vd; |
2773 |
dmu_tx_t *tx; |
|
2774 |
int dirty_vdevs; |
|
2775 |
||
2776 |
/* |
|
2777 |
* Lock out configuration changes. |
|
2778 |
*/ |
|
1544 | 2779 |
spa_config_enter(spa, RW_READER, FTAG); |
789 | 2780 |
|
2781 |
spa->spa_syncing_txg = txg; |
|
2782 |
spa->spa_sync_pass = 0; |
|
2783 |
||
1544 | 2784 |
VERIFY(0 == bplist_open(bpl, mos, spa->spa_sync_bplist_obj)); |
789 | 2785 |
|
2082 | 2786 |
tx = dmu_tx_create_assigned(dp, txg); |
2787 |
||
2788 |
/* |
|
2789 |
* If we are upgrading to ZFS_VERSION_RAIDZ_DEFLATE this txg, |
|
2790 |
* set spa_deflate if we have no raid-z vdevs. |
|
2791 |
*/ |
|
2792 |
if (spa->spa_ubsync.ub_version < ZFS_VERSION_RAIDZ_DEFLATE && |
|
2793 |
spa->spa_uberblock.ub_version >= ZFS_VERSION_RAIDZ_DEFLATE) { |
|
2794 |
int i; |
|
2795 |
||
2796 |
for (i = 0; i < rvd->vdev_children; i++) { |
|
2797 |
vd = rvd->vdev_child[i]; |
|
2798 |
if (vd->vdev_deflate_ratio != SPA_MINBLOCKSIZE) |
|
2799 |
break; |
|
2800 |
} |
|
2801 |
if (i == rvd->vdev_children) { |
|
2802 |
spa->spa_deflate = TRUE; |
|
2803 |
VERIFY(0 == zap_add(spa->spa_meta_objset, |
|
2804 |
DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, |
|
2805 |
sizeof (uint64_t), 1, &spa->spa_deflate, tx)); |
|
2806 |
} |
|
2807 |
} |
|
2808 |
||
789 | 2809 |
/* |
2810 |
* If anything has changed in this txg, push the deferred frees |
|
2811 |
* from the previous txg. If not, leave them alone so that we |
|
2812 |
* don't generate work on an otherwise idle system. |
|
2813 |
*/ |
|
2814 |
if (!txg_list_empty(&dp->dp_dirty_datasets, txg) || |
|
2329
e640bebc73b3
6446569 deferred list is hooked on flintstone vitamins
ek110237
parents:
2199
diff
changeset
|
2815 |
!txg_list_empty(&dp->dp_dirty_dirs, txg) || |
e640bebc73b3
6446569 deferred list is hooked on flintstone vitamins
ek110237
parents:
2199
diff
changeset
|
2816 |
!txg_list_empty(&dp->dp_sync_tasks, txg)) |
789 | 2817 |
spa_sync_deferred_frees(spa, txg); |
2818 |
||
2819 |
/* |
|
2820 |
* Iterate to convergence. |
|
2821 |
*/ |
|
2822 |
do { |
|
2823 |
spa->spa_sync_pass++; |
|
2824 |
||
2825 |
spa_sync_config_object(spa, tx); |
|
2082 | 2826 |
spa_sync_spares(spa, tx); |
1544 | 2827 |
spa_errlog_sync(spa, txg); |
789 | 2828 |
dsl_pool_sync(dp, txg); |
2829 |
||
2830 |
dirty_vdevs = 0; |
|
2831 |
while (vd = txg_list_remove(&spa->spa_vdev_txg_list, txg)) { |
|
2832 |
vdev_sync(vd, txg); |
|
2833 |
dirty_vdevs++; |
|
2834 |
} |
|
2835 |
||
2836 |
bplist_sync(bpl, tx); |
|
2837 |
} while (dirty_vdevs); |
|
2838 |
||
2839 |
bplist_close(bpl); |
|
2840 |
||
2841 |
dprintf("txg %llu passes %d\n", txg, spa->spa_sync_pass); |
|
2842 |
||
2843 |
/* |
|
2844 |
* Rewrite the vdev configuration (which includes the uberblock) |
|
2845 |
* to commit the transaction group. |
|
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2846 |
* |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2847 |
* 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
|
2848 |
* 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
|
2849 |
* 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
|
2850 |
* If the write fails, try the next vdev until we're tried them all. |
789 | 2851 |
*/ |
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2852 |
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
|
2853 |
VERIFY(vdev_config_sync(rvd, txg) == 0); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2854 |
} else { |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2855 |
int children = rvd->vdev_children; |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2856 |
int c0 = spa_get_random(children); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2857 |
int c; |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2858 |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2859 |
for (c = 0; c < children; c++) { |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2860 |
vd = rvd->vdev_child[(c0 + c) % children]; |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2861 |
if (vd->vdev_ms_array == 0) |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2862 |
continue; |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2863 |
if (vdev_config_sync(vd, txg) == 0) |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2864 |
break; |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2865 |
} |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2866 |
if (c == children) |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2867 |
VERIFY(vdev_config_sync(rvd, txg) == 0); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2868 |
} |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2869 |
|
2082 | 2870 |
dmu_tx_commit(tx); |
2871 |
||
1635
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2872 |
/* |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2873 |
* Clear the dirty config list. |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2874 |
*/ |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2875 |
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
|
2876 |
vdev_config_clean(vd); |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2877 |
|
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2878 |
/* |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2879 |
* 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
|
2880 |
* 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
|
2881 |
*/ |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2882 |
if (spa->spa_config_syncing != NULL) { |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2883 |
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
|
2884 |
spa->spa_config_txg = txg; |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2885 |
spa->spa_config_syncing = NULL; |
0ab1193d47cb
6398664 zpool detach: missing argument to error message causes core dump
bonwick
parents:
1601
diff
changeset
|
2886 |
} |
789 | 2887 |
|
2888 |
/* |
|
2889 |
* Make a stable copy of the fully synced uberblock. |
|
2890 |
* We use this as the root for pool traversals. |
|
2891 |
*/ |
|
2892 |
spa->spa_traverse_wanted = 1; /* tells traverse_more() to stop */ |
|
2893 |
||
2894 |
spa_scrub_suspend(spa); /* stop scrubbing and finish I/Os */ |
|
2895 |
||
2896 |
rw_enter(&spa->spa_traverse_lock, RW_WRITER); |
|
2897 |
spa->spa_traverse_wanted = 0; |
|
2898 |
spa->spa_ubsync = spa->spa_uberblock; |
|
2899 |
rw_exit(&spa->spa_traverse_lock); |
|
2900 |
||
2901 |
spa_scrub_resume(spa); /* resume scrub with new ubsync */ |
|
2902 |
||
2903 |
/* |
|
2904 |
* Clean up the ZIL records for the synced txg. |
|
2905 |
*/ |
|
2906 |
dsl_pool_zil_clean(dp); |
|
2907 |
||
2908 |
/* |
|
2909 |
* Update usable space statistics. |
|
2910 |
*/ |
|
2911 |
while (vd = txg_list_remove(&spa->spa_vdev_txg_list, TXG_CLEAN(txg))) |
|
2912 |
vdev_sync_done(vd, txg); |
|
2913 |
||
2914 |
/* |
|
2915 |
* It had better be the case that we didn't dirty anything |
|
2082 | 2916 |
* since vdev_config_sync(). |
789 | 2917 |
*/ |
2918 |
ASSERT(txg_list_empty(&dp->dp_dirty_datasets, txg)); |
|
2919 |
ASSERT(txg_list_empty(&dp->dp_dirty_dirs, txg)); |
|
2920 |
ASSERT(txg_list_empty(&spa->spa_vdev_txg_list, txg)); |
|
2921 |
ASSERT(bpl->bpl_queue == NULL); |
|
2922 |
||
1544 | 2923 |
spa_config_exit(spa, FTAG); |
2924 |
||
2925 |
/* |
|
2926 |
* If any async tasks have been requested, kick them off. |
|
2927 |
*/ |
|
2928 |
spa_async_dispatch(spa); |
|
789 | 2929 |
} |
2930 |
||
2931 |
/* |
|
2932 |
* Sync all pools. We don't want to hold the namespace lock across these |
|
2933 |
* operations, so we take a reference on the spa_t and drop the lock during the |
|
2934 |
* sync. |
|
2935 |
*/ |
|
2936 |
void |
|
2937 |
spa_sync_allpools(void) |
|
2938 |
{ |
|
2939 |
spa_t *spa = NULL; |
|
2940 |
mutex_enter(&spa_namespace_lock); |
|
2941 |
while ((spa = spa_next(spa)) != NULL) { |
|
2942 |
if (spa_state(spa) != POOL_STATE_ACTIVE) |
|
2943 |
continue; |
|
2944 |
spa_open_ref(spa, FTAG); |
|
2945 |
mutex_exit(&spa_namespace_lock); |
|
2946 |
txg_wait_synced(spa_get_dsl(spa), 0); |
|
2947 |
mutex_enter(&spa_namespace_lock); |
|
2948 |
spa_close(spa, FTAG); |
|
2949 |
} |
|
2950 |
mutex_exit(&spa_namespace_lock); |
|
2951 |
} |
|
2952 |
||
2953 |
/* |
|
2954 |
* ========================================================================== |
|
2955 |
* Miscellaneous routines |
|
2956 |
* ========================================================================== |
|
2957 |
*/ |
|
2958 |
||
2959 |
/* |
|
2960 |
* Remove all pools in the system. |
|
2961 |
*/ |
|
2962 |
void |
|
2963 |
spa_evict_all(void) |
|
2964 |
{ |
|
2965 |
spa_t *spa; |
|
2966 |
||
2967 |
/* |
|
2968 |
* Remove all cached state. All pools should be closed now, |
|
2969 |
* so every spa in the AVL tree should be unreferenced. |
|
2970 |
*/ |
|
2971 |
mutex_enter(&spa_namespace_lock); |
|
2972 |
while ((spa = spa_next(NULL)) != NULL) { |
|
2973 |
/* |
|
1544 | 2974 |
* Stop async tasks. The async thread may need to detach |
2975 |
* a device that's been replaced, which requires grabbing |
|
2976 |
* spa_namespace_lock, so we must drop it here. |
|
789 | 2977 |
*/ |
2978 |
spa_open_ref(spa, FTAG); |
|
2979 |
mutex_exit(&spa_namespace_lock); |
|
1544 | 2980 |
spa_async_suspend(spa); |
789 | 2981 |
VERIFY(spa_scrub(spa, POOL_SCRUB_NONE, B_TRUE) == 0); |
2982 |
mutex_enter(&spa_namespace_lock); |
|
2983 |
spa_close(spa, FTAG); |
|
2984 |
||
2985 |
if (spa->spa_state != POOL_STATE_UNINITIALIZED) { |
|
2986 |
spa_unload(spa); |
|
2987 |
spa_deactivate(spa); |
|
2988 |
} |
|
2989 |
spa_remove(spa); |
|
2990 |
} |
|
2991 |
mutex_exit(&spa_namespace_lock); |
|
2992 |
} |
|
1544 | 2993 |
|
2994 |
vdev_t * |
|
2995 |
spa_lookup_by_guid(spa_t *spa, uint64_t guid) |
|
2996 |
{ |
|
2997 |
return (vdev_lookup_by_guid(spa->spa_root_vdev, guid)); |
|
2998 |
} |
|
1760 | 2999 |
|
3000 |
void |
|
3001 |
spa_upgrade(spa_t *spa) |
|
3002 |
{ |
|
3003 |
spa_config_enter(spa, RW_WRITER, FTAG); |
|
3004 |
||
3005 |
/* |
|
3006 |
* This should only be called for a non-faulted pool, and since a |
|
3007 |
* future version would result in an unopenable pool, this shouldn't be |
|
3008 |
* possible. |
|
3009 |
*/ |
|
3010 |
ASSERT(spa->spa_uberblock.ub_version <= ZFS_VERSION); |
|
3011 |
||
3012 |
spa->spa_uberblock.ub_version = ZFS_VERSION; |
|
3013 |
vdev_config_dirty(spa->spa_root_vdev); |
|
3014 |
||
3015 |
spa_config_exit(spa, FTAG); |
|
2082 | 3016 |
|
3017 |
txg_wait_synced(spa_get_dsl(spa), 0); |
|
1760 | 3018 |
} |
2082 | 3019 |
|
3020 |
boolean_t |
|
3021 |
spa_has_spare(spa_t *spa, uint64_t guid) |
|
3022 |
{ |
|
3023 |
int i; |
|
3024 |
||
3025 |
for (i = 0; i < spa->spa_nspares; i++) |
|
3026 |
if (spa->spa_spares[i]->vdev_guid == guid) |
|
3027 |
return (B_TRUE); |
|
3028 |
||
3029 |
return (B_FALSE); |
|
3030 |
} |