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34dc7c2f BB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
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 | */ | |
21 | ||
22 | /* | |
428870ff | 23 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
34dc7c2f BB |
24 | */ |
25 | ||
34dc7c2f BB |
26 | #include <sys/spa.h> |
27 | #include <sys/spa_impl.h> | |
28 | #include <sys/nvpair.h> | |
29 | #include <sys/uio.h> | |
30 | #include <sys/fs/zfs.h> | |
31 | #include <sys/vdev_impl.h> | |
32 | #include <sys/zfs_ioctl.h> | |
33 | #include <sys/utsname.h> | |
34 | #include <sys/systeminfo.h> | |
35 | #include <sys/sunddi.h> | |
36 | #ifdef _KERNEL | |
37 | #include <sys/kobj.h> | |
d164b209 | 38 | #include <sys/zone.h> |
34dc7c2f BB |
39 | #endif |
40 | ||
41 | /* | |
42 | * Pool configuration repository. | |
43 | * | |
44 | * Pool configuration is stored as a packed nvlist on the filesystem. By | |
45 | * default, all pools are stored in /etc/zfs/zpool.cache and loaded on boot | |
46 | * (when the ZFS module is loaded). Pools can also have the 'cachefile' | |
47 | * property set that allows them to be stored in an alternate location until | |
48 | * the control of external software. | |
49 | * | |
50 | * For each cache file, we have a single nvlist which holds all the | |
51 | * configuration information. When the module loads, we read this information | |
52 | * from /etc/zfs/zpool.cache and populate the SPA namespace. This namespace is | |
53 | * maintained independently in spa.c. Whenever the namespace is modified, or | |
54 | * the configuration of a pool is changed, we call spa_config_sync(), which | |
55 | * walks through all the active pools and writes the configuration to disk. | |
56 | */ | |
57 | ||
58 | static uint64_t spa_config_generation = 1; | |
59 | ||
60 | /* | |
61 | * This can be overridden in userland to preserve an alternate namespace for | |
62 | * userland pools when doing testing. | |
63 | */ | |
b128c09f | 64 | const char *spa_config_path = ZPOOL_CACHE; |
34dc7c2f BB |
65 | |
66 | /* | |
67 | * Called when the module is first loaded, this routine loads the configuration | |
68 | * file into the SPA namespace. It does not actually open or load the pools; it | |
69 | * only populates the namespace. | |
70 | */ | |
71 | void | |
72 | spa_config_load(void) | |
73 | { | |
74 | void *buf = NULL; | |
75 | nvlist_t *nvlist, *child; | |
76 | nvpair_t *nvpair; | |
b128c09f | 77 | char *pathname; |
34dc7c2f BB |
78 | struct _buf *file; |
79 | uint64_t fsize; | |
80 | ||
81 | /* | |
82 | * Open the configuration file. | |
83 | */ | |
b128c09f BB |
84 | pathname = kmem_alloc(MAXPATHLEN, KM_SLEEP); |
85 | ||
86 | (void) snprintf(pathname, MAXPATHLEN, "%s%s", | |
87 | (rootdir != NULL) ? "./" : "", spa_config_path); | |
34dc7c2f BB |
88 | |
89 | file = kobj_open_file(pathname); | |
b128c09f BB |
90 | |
91 | kmem_free(pathname, MAXPATHLEN); | |
92 | ||
34dc7c2f BB |
93 | if (file == (struct _buf *)-1) |
94 | return; | |
95 | ||
96 | if (kobj_get_filesize(file, &fsize) != 0) | |
97 | goto out; | |
98 | ||
99 | buf = kmem_alloc(fsize, KM_SLEEP); | |
100 | ||
101 | /* | |
102 | * Read the nvlist from the file. | |
103 | */ | |
104 | if (kobj_read_file(file, buf, fsize, 0) < 0) | |
105 | goto out; | |
106 | ||
107 | /* | |
108 | * Unpack the nvlist. | |
109 | */ | |
110 | if (nvlist_unpack(buf, fsize, &nvlist, KM_SLEEP) != 0) | |
111 | goto out; | |
112 | ||
113 | /* | |
114 | * Iterate over all elements in the nvlist, creating a new spa_t for | |
115 | * each one with the specified configuration. | |
116 | */ | |
117 | mutex_enter(&spa_namespace_lock); | |
118 | nvpair = NULL; | |
119 | while ((nvpair = nvlist_next_nvpair(nvlist, nvpair)) != NULL) { | |
34dc7c2f BB |
120 | if (nvpair_type(nvpair) != DATA_TYPE_NVLIST) |
121 | continue; | |
122 | ||
123 | VERIFY(nvpair_value_nvlist(nvpair, &child) == 0); | |
124 | ||
125 | if (spa_lookup(nvpair_name(nvpair)) != NULL) | |
126 | continue; | |
428870ff | 127 | (void) spa_add(nvpair_name(nvpair), child, NULL); |
34dc7c2f BB |
128 | } |
129 | mutex_exit(&spa_namespace_lock); | |
130 | ||
131 | nvlist_free(nvlist); | |
132 | ||
133 | out: | |
134 | if (buf != NULL) | |
135 | kmem_free(buf, fsize); | |
136 | ||
137 | kobj_close_file(file); | |
138 | } | |
139 | ||
34dc7c2f | 140 | static void |
b128c09f | 141 | spa_config_write(spa_config_dirent_t *dp, nvlist_t *nvl) |
34dc7c2f | 142 | { |
34dc7c2f BB |
143 | size_t buflen; |
144 | char *buf; | |
145 | vnode_t *vp; | |
146 | int oflags = FWRITE | FTRUNC | FCREAT | FOFFMAX; | |
b128c09f BB |
147 | char *temp; |
148 | ||
149 | /* | |
150 | * If the nvlist is empty (NULL), then remove the old cachefile. | |
151 | */ | |
152 | if (nvl == NULL) { | |
153 | (void) vn_remove(dp->scd_path, UIO_SYSSPACE, RMFILE); | |
154 | return; | |
155 | } | |
34dc7c2f BB |
156 | |
157 | /* | |
158 | * Pack the configuration into a buffer. | |
159 | */ | |
b128c09f | 160 | VERIFY(nvlist_size(nvl, &buflen, NV_ENCODE_XDR) == 0); |
34dc7c2f BB |
161 | |
162 | buf = kmem_alloc(buflen, KM_SLEEP); | |
b128c09f | 163 | temp = kmem_zalloc(MAXPATHLEN, KM_SLEEP); |
34dc7c2f | 164 | |
b128c09f | 165 | VERIFY(nvlist_pack(nvl, &buf, &buflen, NV_ENCODE_XDR, |
34dc7c2f BB |
166 | KM_SLEEP) == 0); |
167 | ||
168 | /* | |
169 | * Write the configuration to disk. We need to do the traditional | |
170 | * 'write to temporary file, sync, move over original' to make sure we | |
171 | * always have a consistent view of the data. | |
172 | */ | |
b128c09f | 173 | (void) snprintf(temp, MAXPATHLEN, "%s.tmp", dp->scd_path); |
34dc7c2f | 174 | |
b128c09f BB |
175 | if (vn_open(temp, UIO_SYSSPACE, oflags, 0644, &vp, CRCREAT, 0) == 0) { |
176 | if (vn_rdwr(UIO_WRITE, vp, buf, buflen, 0, UIO_SYSSPACE, | |
177 | 0, RLIM64_INFINITY, kcred, NULL) == 0 && | |
178 | VOP_FSYNC(vp, FSYNC, kcred, NULL) == 0) { | |
179 | (void) vn_rename(temp, dp->scd_path, UIO_SYSSPACE); | |
180 | } | |
181 | (void) VOP_CLOSE(vp, oflags, 1, 0, kcred, NULL); | |
182 | VN_RELE(vp); | |
34dc7c2f BB |
183 | } |
184 | ||
b128c09f | 185 | (void) vn_remove(temp, UIO_SYSSPACE, RMFILE); |
34dc7c2f | 186 | |
34dc7c2f | 187 | kmem_free(buf, buflen); |
b128c09f | 188 | kmem_free(temp, MAXPATHLEN); |
34dc7c2f BB |
189 | } |
190 | ||
191 | /* | |
b128c09f BB |
192 | * Synchronize pool configuration to disk. This must be called with the |
193 | * namespace lock held. | |
34dc7c2f BB |
194 | */ |
195 | void | |
b128c09f | 196 | spa_config_sync(spa_t *target, boolean_t removing, boolean_t postsysevent) |
34dc7c2f | 197 | { |
b128c09f BB |
198 | spa_config_dirent_t *dp, *tdp; |
199 | nvlist_t *nvl; | |
34dc7c2f BB |
200 | |
201 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); | |
202 | ||
45d1cae3 | 203 | if (rootdir == NULL || !(spa_mode_global & FWRITE)) |
fb5f0bc8 BB |
204 | return; |
205 | ||
b128c09f BB |
206 | /* |
207 | * Iterate over all cachefiles for the pool, past or present. When the | |
208 | * cachefile is changed, the new one is pushed onto this list, allowing | |
209 | * us to update previous cachefiles that no longer contain this pool. | |
210 | */ | |
211 | for (dp = list_head(&target->spa_config_list); dp != NULL; | |
212 | dp = list_next(&target->spa_config_list, dp)) { | |
213 | spa_t *spa = NULL; | |
214 | if (dp->scd_path == NULL) | |
215 | continue; | |
216 | ||
217 | /* | |
218 | * Iterate over all pools, adding any matching pools to 'nvl'. | |
219 | */ | |
220 | nvl = NULL; | |
221 | while ((spa = spa_next(spa)) != NULL) { | |
222 | if (spa == target && removing) | |
223 | continue; | |
224 | ||
225 | mutex_enter(&spa->spa_props_lock); | |
226 | tdp = list_head(&spa->spa_config_list); | |
227 | if (spa->spa_config == NULL || | |
228 | tdp->scd_path == NULL || | |
229 | strcmp(tdp->scd_path, dp->scd_path) != 0) { | |
230 | mutex_exit(&spa->spa_props_lock); | |
231 | continue; | |
232 | } | |
233 | ||
234 | if (nvl == NULL) | |
235 | VERIFY(nvlist_alloc(&nvl, NV_UNIQUE_NAME, | |
236 | KM_SLEEP) == 0); | |
237 | ||
238 | VERIFY(nvlist_add_nvlist(nvl, spa->spa_name, | |
239 | spa->spa_config) == 0); | |
240 | mutex_exit(&spa->spa_props_lock); | |
241 | } | |
242 | ||
243 | spa_config_write(dp, nvl); | |
244 | nvlist_free(nvl); | |
245 | } | |
34dc7c2f BB |
246 | |
247 | /* | |
b128c09f | 248 | * Remove any config entries older than the current one. |
34dc7c2f | 249 | */ |
b128c09f BB |
250 | dp = list_head(&target->spa_config_list); |
251 | while ((tdp = list_next(&target->spa_config_list, dp)) != NULL) { | |
252 | list_remove(&target->spa_config_list, tdp); | |
253 | if (tdp->scd_path != NULL) | |
254 | spa_strfree(tdp->scd_path); | |
255 | kmem_free(tdp, sizeof (spa_config_dirent_t)); | |
34dc7c2f BB |
256 | } |
257 | ||
258 | spa_config_generation++; | |
b128c09f BB |
259 | |
260 | if (postsysevent) | |
261 | spa_event_notify(target, NULL, ESC_ZFS_CONFIG_SYNC); | |
34dc7c2f BB |
262 | } |
263 | ||
264 | /* | |
265 | * Sigh. Inside a local zone, we don't have access to /etc/zfs/zpool.cache, | |
266 | * and we don't want to allow the local zone to see all the pools anyway. | |
267 | * So we have to invent the ZFS_IOC_CONFIG ioctl to grab the configuration | |
268 | * information for all pool visible within the zone. | |
269 | */ | |
270 | nvlist_t * | |
271 | spa_all_configs(uint64_t *generation) | |
272 | { | |
273 | nvlist_t *pools; | |
b128c09f | 274 | spa_t *spa = NULL; |
34dc7c2f BB |
275 | |
276 | if (*generation == spa_config_generation) | |
277 | return (NULL); | |
278 | ||
279 | VERIFY(nvlist_alloc(&pools, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
280 | ||
34dc7c2f BB |
281 | mutex_enter(&spa_namespace_lock); |
282 | while ((spa = spa_next(spa)) != NULL) { | |
283 | if (INGLOBALZONE(curproc) || | |
284 | zone_dataset_visible(spa_name(spa), NULL)) { | |
b128c09f | 285 | mutex_enter(&spa->spa_props_lock); |
34dc7c2f BB |
286 | VERIFY(nvlist_add_nvlist(pools, spa_name(spa), |
287 | spa->spa_config) == 0); | |
b128c09f | 288 | mutex_exit(&spa->spa_props_lock); |
34dc7c2f BB |
289 | } |
290 | } | |
34dc7c2f | 291 | *generation = spa_config_generation; |
b128c09f | 292 | mutex_exit(&spa_namespace_lock); |
34dc7c2f BB |
293 | |
294 | return (pools); | |
295 | } | |
296 | ||
297 | void | |
298 | spa_config_set(spa_t *spa, nvlist_t *config) | |
299 | { | |
b128c09f | 300 | mutex_enter(&spa->spa_props_lock); |
34dc7c2f BB |
301 | if (spa->spa_config != NULL) |
302 | nvlist_free(spa->spa_config); | |
303 | spa->spa_config = config; | |
b128c09f | 304 | mutex_exit(&spa->spa_props_lock); |
34dc7c2f BB |
305 | } |
306 | ||
428870ff BB |
307 | /* Add discovered rewind info, if any to the provided nvlist */ |
308 | void | |
309 | spa_rewind_data_to_nvlist(spa_t *spa, nvlist_t *tonvl) | |
310 | { | |
311 | int64_t loss = 0; | |
312 | ||
313 | if (tonvl == NULL || spa->spa_load_txg == 0) | |
314 | return; | |
315 | ||
316 | VERIFY(nvlist_add_uint64(tonvl, ZPOOL_CONFIG_LOAD_TIME, | |
317 | spa->spa_load_txg_ts) == 0); | |
318 | if (spa->spa_last_ubsync_txg) | |
319 | loss = spa->spa_last_ubsync_txg_ts - spa->spa_load_txg_ts; | |
320 | VERIFY(nvlist_add_int64(tonvl, ZPOOL_CONFIG_REWIND_TIME, loss) == 0); | |
321 | VERIFY(nvlist_add_uint64(tonvl, ZPOOL_CONFIG_LOAD_DATA_ERRORS, | |
322 | spa->spa_load_data_errors) == 0); | |
323 | } | |
324 | ||
34dc7c2f BB |
325 | /* |
326 | * Generate the pool's configuration based on the current in-core state. | |
327 | * We infer whether to generate a complete config or just one top-level config | |
328 | * based on whether vd is the root vdev. | |
329 | */ | |
330 | nvlist_t * | |
331 | spa_config_generate(spa_t *spa, vdev_t *vd, uint64_t txg, int getstats) | |
332 | { | |
333 | nvlist_t *config, *nvroot; | |
334 | vdev_t *rvd = spa->spa_root_vdev; | |
335 | unsigned long hostid = 0; | |
b128c09f | 336 | boolean_t locked = B_FALSE; |
428870ff | 337 | uint64_t split_guid; |
34dc7c2f | 338 | |
b128c09f | 339 | if (vd == NULL) { |
34dc7c2f | 340 | vd = rvd; |
b128c09f BB |
341 | locked = B_TRUE; |
342 | spa_config_enter(spa, SCL_CONFIG | SCL_STATE, FTAG, RW_READER); | |
343 | } | |
344 | ||
345 | ASSERT(spa_config_held(spa, SCL_CONFIG | SCL_STATE, RW_READER) == | |
346 | (SCL_CONFIG | SCL_STATE)); | |
34dc7c2f BB |
347 | |
348 | /* | |
349 | * If txg is -1, report the current value of spa->spa_config_txg. | |
350 | */ | |
351 | if (txg == -1ULL) | |
352 | txg = spa->spa_config_txg; | |
353 | ||
354 | VERIFY(nvlist_alloc(&config, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
355 | ||
356 | VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_VERSION, | |
357 | spa_version(spa)) == 0); | |
358 | VERIFY(nvlist_add_string(config, ZPOOL_CONFIG_POOL_NAME, | |
359 | spa_name(spa)) == 0); | |
360 | VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_POOL_STATE, | |
361 | spa_state(spa)) == 0); | |
362 | VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_POOL_TXG, | |
363 | txg) == 0); | |
364 | VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_POOL_GUID, | |
365 | spa_guid(spa)) == 0); | |
d164b209 BB |
366 | #ifdef _KERNEL |
367 | hostid = zone_get_hostid(NULL); | |
368 | #else /* _KERNEL */ | |
369 | /* | |
370 | * We're emulating the system's hostid in userland, so we can't use | |
371 | * zone_get_hostid(). | |
372 | */ | |
34dc7c2f | 373 | (void) ddi_strtoul(hw_serial, NULL, 10, &hostid); |
d164b209 | 374 | #endif /* _KERNEL */ |
34dc7c2f BB |
375 | if (hostid != 0) { |
376 | VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_HOSTID, | |
377 | hostid) == 0); | |
378 | } | |
379 | VERIFY(nvlist_add_string(config, ZPOOL_CONFIG_HOSTNAME, | |
380 | utsname.nodename) == 0); | |
381 | ||
382 | if (vd != rvd) { | |
383 | VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_TOP_GUID, | |
384 | vd->vdev_top->vdev_guid) == 0); | |
385 | VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_GUID, | |
386 | vd->vdev_guid) == 0); | |
387 | if (vd->vdev_isspare) | |
388 | VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_IS_SPARE, | |
389 | 1ULL) == 0); | |
390 | if (vd->vdev_islog) | |
391 | VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_IS_LOG, | |
392 | 1ULL) == 0); | |
393 | vd = vd->vdev_top; /* label contains top config */ | |
428870ff BB |
394 | } else { |
395 | /* | |
396 | * Only add the (potentially large) split information | |
397 | * in the mos config, and not in the vdev labels | |
398 | */ | |
399 | if (spa->spa_config_splitting != NULL) | |
400 | VERIFY(nvlist_add_nvlist(config, ZPOOL_CONFIG_SPLIT, | |
401 | spa->spa_config_splitting) == 0); | |
34dc7c2f BB |
402 | } |
403 | ||
428870ff BB |
404 | /* |
405 | * Add the top-level config. We even add this on pools which | |
406 | * don't support holes in the namespace as older pools will | |
407 | * just ignore it. | |
408 | */ | |
409 | vdev_top_config_generate(spa, config); | |
410 | ||
411 | /* | |
412 | * If we're splitting, record the original pool's guid. | |
413 | */ | |
414 | if (spa->spa_config_splitting != NULL && | |
415 | nvlist_lookup_uint64(spa->spa_config_splitting, | |
416 | ZPOOL_CONFIG_SPLIT_GUID, &split_guid) == 0) { | |
417 | VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_SPLIT_GUID, | |
418 | split_guid) == 0); | |
419 | } | |
420 | ||
421 | nvroot = vdev_config_generate(spa, vd, getstats, 0); | |
34dc7c2f BB |
422 | VERIFY(nvlist_add_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, nvroot) == 0); |
423 | nvlist_free(nvroot); | |
424 | ||
428870ff BB |
425 | if (getstats && spa_load_state(spa) == SPA_LOAD_NONE) { |
426 | ddt_histogram_t *ddh; | |
427 | ddt_stat_t *dds; | |
428 | ddt_object_t *ddo; | |
429 | ||
430 | ddh = kmem_zalloc(sizeof (ddt_histogram_t), KM_SLEEP); | |
431 | ddt_get_dedup_histogram(spa, ddh); | |
432 | VERIFY(nvlist_add_uint64_array(config, | |
433 | ZPOOL_CONFIG_DDT_HISTOGRAM, | |
434 | (uint64_t *)ddh, sizeof (*ddh) / sizeof (uint64_t)) == 0); | |
435 | kmem_free(ddh, sizeof (ddt_histogram_t)); | |
436 | ||
437 | ddo = kmem_zalloc(sizeof (ddt_object_t), KM_SLEEP); | |
438 | ddt_get_dedup_object_stats(spa, ddo); | |
439 | VERIFY(nvlist_add_uint64_array(config, | |
440 | ZPOOL_CONFIG_DDT_OBJ_STATS, | |
441 | (uint64_t *)ddo, sizeof (*ddo) / sizeof (uint64_t)) == 0); | |
442 | kmem_free(ddo, sizeof (ddt_object_t)); | |
443 | ||
444 | dds = kmem_zalloc(sizeof (ddt_stat_t), KM_SLEEP); | |
445 | ddt_get_dedup_stats(spa, dds); | |
446 | VERIFY(nvlist_add_uint64_array(config, | |
447 | ZPOOL_CONFIG_DDT_STATS, | |
448 | (uint64_t *)dds, sizeof (*dds) / sizeof (uint64_t)) == 0); | |
449 | kmem_free(dds, sizeof (ddt_stat_t)); | |
450 | } | |
451 | ||
452 | spa_rewind_data_to_nvlist(spa, config); | |
453 | ||
b128c09f BB |
454 | if (locked) |
455 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
456 | ||
34dc7c2f BB |
457 | return (config); |
458 | } | |
459 | ||
34dc7c2f BB |
460 | /* |
461 | * Update all disk labels, generate a fresh config based on the current | |
462 | * in-core state, and sync the global config cache (do not sync the config | |
463 | * cache if this is a booting rootpool). | |
464 | */ | |
465 | void | |
45d1cae3 | 466 | spa_config_update(spa_t *spa, int what) |
34dc7c2f BB |
467 | { |
468 | vdev_t *rvd = spa->spa_root_vdev; | |
469 | uint64_t txg; | |
470 | int c; | |
471 | ||
472 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); | |
473 | ||
b128c09f | 474 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f BB |
475 | txg = spa_last_synced_txg(spa) + 1; |
476 | if (what == SPA_CONFIG_UPDATE_POOL) { | |
477 | vdev_config_dirty(rvd); | |
478 | } else { | |
479 | /* | |
480 | * If we have top-level vdevs that were added but have | |
481 | * not yet been prepared for allocation, do that now. | |
482 | * (It's safe now because the config cache is up to date, | |
483 | * so it will be able to translate the new DVAs.) | |
484 | * See comments in spa_vdev_add() for full details. | |
485 | */ | |
486 | for (c = 0; c < rvd->vdev_children; c++) { | |
487 | vdev_t *tvd = rvd->vdev_child[c]; | |
9babb374 BB |
488 | if (tvd->vdev_ms_array == 0) |
489 | vdev_metaslab_set_size(tvd); | |
490 | vdev_expand(tvd, txg); | |
34dc7c2f BB |
491 | } |
492 | } | |
b128c09f | 493 | spa_config_exit(spa, SCL_ALL, FTAG); |
34dc7c2f BB |
494 | |
495 | /* | |
496 | * Wait for the mosconfig to be regenerated and synced. | |
497 | */ | |
498 | txg_wait_synced(spa->spa_dsl_pool, txg); | |
499 | ||
500 | /* | |
501 | * Update the global config cache to reflect the new mosconfig. | |
502 | */ | |
45d1cae3 | 503 | if (!spa->spa_is_root) |
b128c09f | 504 | spa_config_sync(spa, B_FALSE, what != SPA_CONFIG_UPDATE_POOL); |
34dc7c2f BB |
505 | |
506 | if (what == SPA_CONFIG_UPDATE_POOL) | |
45d1cae3 | 507 | spa_config_update(spa, SPA_CONFIG_UPDATE_VDEVS); |
34dc7c2f | 508 | } |