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 /*
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
25 * Copyright (c) 2011, 2015 by Delphix. All rights reserved.
26 * Copyright 2017 Joyent, Inc.
27 */
28
29 #include <sys/spa.h>
30 #include <sys/fm/fs/zfs.h>
31 #include <sys/spa_impl.h>
32 #include <sys/nvpair.h>
33 #include <sys/uio.h>
34 #include <sys/fs/zfs.h>
35 #include <sys/vdev_impl.h>
36 #include <sys/zfs_ioctl.h>
37 #include <sys/utsname.h>
38 #include <sys/systeminfo.h>
39 #include <sys/sunddi.h>
40 #include <sys/zfeature.h>
41 #ifdef _KERNEL
42 #include <sys/kobj.h>
43 #include <sys/zone.h>
44 #endif
45
46 /*
47 * Pool configuration repository.
48 *
49 * Pool configuration is stored as a packed nvlist on the filesystem. By
50 * default, all pools are stored in /etc/zfs/zpool.cache and loaded on boot
51 * (when the ZFS module is loaded). Pools can also have the 'cachefile'
52 * property set that allows them to be stored in an alternate location until
53 * the control of external software.
54 *
55 * For each cache file, we have a single nvlist which holds all the
56 * configuration information. When the module loads, we read this information
57 * from /etc/zfs/zpool.cache and populate the SPA namespace. This namespace is
58 * maintained independently in spa.c. Whenever the namespace is modified, or
59 * the configuration of a pool is changed, we call spa_write_cachefile(), which
60 * walks through all the active pools and writes the configuration to disk.
61 */
62
63 static uint64_t spa_config_generation = 1;
64
65 /*
66 * This can be overridden in userland to preserve an alternate namespace for
67 * userland pools when doing testing.
68 */
69 const char *spa_config_path = ZPOOL_CACHE;
70
71 /*
72 * Called when the module is first loaded, this routine loads the configuration
73 * file into the SPA namespace. It does not actually open or load the pools; it
74 * only populates the namespace.
75 */
76 void
77 spa_config_load(void)
78 {
79 void *buf = NULL;
105
106 /*
107 * Read the nvlist from the file.
108 */
109 if (kobj_read_file(file, buf, fsize, 0) < 0)
110 goto out;
111
112 /*
113 * Unpack the nvlist.
114 */
115 if (nvlist_unpack(buf, fsize, &nvlist, KM_SLEEP) != 0)
116 goto out;
117
118 /*
119 * Iterate over all elements in the nvlist, creating a new spa_t for
120 * each one with the specified configuration.
121 */
122 mutex_enter(&spa_namespace_lock);
123 nvpair = NULL;
124 while ((nvpair = nvlist_next_nvpair(nvlist, nvpair)) != NULL) {
125 if (nvpair_type(nvpair) != DATA_TYPE_NVLIST)
126 continue;
127
128 child = fnvpair_value_nvlist(nvpair);
129
130 if (spa_lookup(nvpair_name(nvpair)) != NULL)
131 continue;
132 (void) spa_add(nvpair_name(nvpair), child, NULL);
133 }
134 mutex_exit(&spa_namespace_lock);
135
136 nvlist_free(nvlist);
137
138 out:
139 if (buf != NULL)
140 kmem_free(buf, fsize);
141
142 kobj_close_file(file);
143 }
144
145 static int
146 spa_config_write(spa_config_dirent_t *dp, nvlist_t *nvl)
147 {
148 size_t buflen;
149 char *buf;
150 vnode_t *vp;
151 int oflags = FWRITE | FTRUNC | FCREAT | FOFFMAX;
181 err = VOP_FSYNC(vp, FSYNC, kcred, NULL);
182 if (err == 0)
183 err = vn_rename(temp, dp->scd_path, UIO_SYSSPACE);
184 (void) VOP_CLOSE(vp, oflags, 1, 0, kcred, NULL);
185 VN_RELE(vp);
186 }
187
188 (void) vn_remove(temp, UIO_SYSSPACE, RMFILE);
189
190 fnvlist_pack_free(buf, buflen);
191 kmem_free(temp, MAXPATHLEN);
192 return (err);
193 }
194
195 /*
196 * Synchronize pool configuration to disk. This must be called with the
197 * namespace lock held. Synchronizing the pool cache is typically done after
198 * the configuration has been synced to the MOS. This exposes a window where
199 * the MOS config will have been updated but the cache file has not. If
200 * the system were to crash at that instant then the cached config may not
201 * contain the correct information to open the pool and an explicit import
202 * would be required.
203 */
204 void
205 spa_write_cachefile(spa_t *target, boolean_t removing, boolean_t postsysevent)
206 {
207 spa_config_dirent_t *dp, *tdp;
208 nvlist_t *nvl;
209 boolean_t ccw_failure;
210 int error;
211
212 ASSERT(MUTEX_HELD(&spa_namespace_lock));
213
214 if (rootdir == NULL || !(spa_mode_global & FWRITE))
215 return;
216
217 /*
218 * Iterate over all cachefiles for the pool, past or present. When the
219 * cachefile is changed, the new one is pushed onto this list, allowing
220 * us to update previous cachefiles that no longer contain this pool.
221 */
222 ccw_failure = B_FALSE;
223 for (dp = list_head(&target->spa_config_list); dp != NULL;
224 dp = list_next(&target->spa_config_list, dp)) {
225 spa_t *spa = NULL;
322 mutex_enter(&spa_namespace_lock);
323 while ((spa = spa_next(spa)) != NULL) {
324 if (INGLOBALZONE(curproc) ||
325 zone_dataset_visible(spa_name(spa), NULL)) {
326 mutex_enter(&spa->spa_props_lock);
327 fnvlist_add_nvlist(pools, spa_name(spa),
328 spa->spa_config);
329 mutex_exit(&spa->spa_props_lock);
330 }
331 }
332 *generation = spa_config_generation;
333 mutex_exit(&spa_namespace_lock);
334
335 return (pools);
336 }
337
338 void
339 spa_config_set(spa_t *spa, nvlist_t *config)
340 {
341 mutex_enter(&spa->spa_props_lock);
342 if (spa->spa_config != NULL && spa->spa_config != config)
343 nvlist_free(spa->spa_config);
344 spa->spa_config = config;
345 mutex_exit(&spa->spa_props_lock);
346 }
347
348 /*
349 * Generate the pool's configuration based on the current in-core state.
350 *
351 * We infer whether to generate a complete config or just one top-level config
352 * based on whether vd is the root vdev.
353 */
354 nvlist_t *
355 spa_config_generate(spa_t *spa, vdev_t *vd, uint64_t txg, int getstats)
356 {
357 nvlist_t *config, *nvroot;
358 vdev_t *rvd = spa->spa_root_vdev;
359 unsigned long hostid = 0;
360 boolean_t locked = B_FALSE;
361 uint64_t split_guid;
362
370 (SCL_CONFIG | SCL_STATE));
371
372 /*
373 * If txg is -1, report the current value of spa->spa_config_txg.
374 */
375 if (txg == -1ULL)
376 txg = spa->spa_config_txg;
377
378 config = fnvlist_alloc();
379
380 fnvlist_add_uint64(config, ZPOOL_CONFIG_VERSION, spa_version(spa));
381 fnvlist_add_string(config, ZPOOL_CONFIG_POOL_NAME, spa_name(spa));
382 fnvlist_add_uint64(config, ZPOOL_CONFIG_POOL_STATE, spa_state(spa));
383 fnvlist_add_uint64(config, ZPOOL_CONFIG_POOL_TXG, txg);
384 fnvlist_add_uint64(config, ZPOOL_CONFIG_POOL_GUID, spa_guid(spa));
385 if (spa->spa_comment != NULL) {
386 fnvlist_add_string(config, ZPOOL_CONFIG_COMMENT,
387 spa->spa_comment);
388 }
389
390 hostid = zone_get_hostid(NULL);
391
392 if (hostid != 0) {
393 fnvlist_add_uint64(config, ZPOOL_CONFIG_HOSTID, hostid);
394 }
395 fnvlist_add_string(config, ZPOOL_CONFIG_HOSTNAME, utsname.nodename);
396
397 int config_gen_flags = 0;
398 if (vd != rvd) {
399 fnvlist_add_uint64(config, ZPOOL_CONFIG_TOP_GUID,
400 vd->vdev_top->vdev_guid);
401 fnvlist_add_uint64(config, ZPOOL_CONFIG_GUID,
402 vd->vdev_guid);
403 if (vd->vdev_isspare) {
404 fnvlist_add_uint64(config,
405 ZPOOL_CONFIG_IS_SPARE, 1ULL);
406 }
407 if (vd->vdev_islog) {
408 fnvlist_add_uint64(config,
409 ZPOOL_CONFIG_IS_LOG, 1ULL);
410 }
411 vd = vd->vdev_top; /* label contains top config */
412 } else {
413 /*
414 * Only add the (potentially large) split information
415 * in the mos config, and not in the vdev labels
416 */
417 if (spa->spa_config_splitting != NULL)
418 fnvlist_add_nvlist(config, ZPOOL_CONFIG_SPLIT,
419 spa->spa_config_splitting);
420 fnvlist_add_boolean(config,
421 ZPOOL_CONFIG_HAS_PER_VDEV_ZAPS);
422
423 config_gen_flags |= VDEV_CONFIG_MOS;
424 }
425
426 /*
427 * Add the top-level config. We even add this on pools which
428 * don't support holes in the namespace.
429 */
430 vdev_top_config_generate(spa, config);
431
432 /*
433 * If we're splitting, record the original pool's guid.
434 */
435 if (spa->spa_config_splitting != NULL &&
436 nvlist_lookup_uint64(spa->spa_config_splitting,
437 ZPOOL_CONFIG_SPLIT_GUID, &split_guid) == 0) {
438 fnvlist_add_uint64(config, ZPOOL_CONFIG_SPLIT_GUID,
439 split_guid);
440 }
441
442 nvroot = vdev_config_generate(spa, vd, getstats, config_gen_flags);
443 fnvlist_add_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, nvroot);
444 nvlist_free(nvroot);
445
446 /*
447 * Store what's necessary for reading the MOS in the label.
448 */
449 fnvlist_add_nvlist(config, ZPOOL_CONFIG_FEATURES_FOR_READ,
450 spa->spa_label_features);
451
452 if (getstats && spa_load_state(spa) == SPA_LOAD_NONE) {
453 ddt_histogram_t *ddh;
454 ddt_stat_t *dds;
455 ddt_object_t *ddo;
456
457 ddh = kmem_zalloc(sizeof (ddt_histogram_t), KM_SLEEP);
458 ddt_get_dedup_histogram(spa, ddh);
459 fnvlist_add_uint64_array(config,
460 ZPOOL_CONFIG_DDT_HISTOGRAM,
461 (uint64_t *)ddh, sizeof (*ddh) / sizeof (uint64_t));
462 kmem_free(ddh, sizeof (ddt_histogram_t));
463
464 ddo = kmem_zalloc(sizeof (ddt_object_t), KM_SLEEP);
465 ddt_get_dedup_object_stats(spa, ddo);
508 * so it will be able to translate the new DVAs.)
509 * See comments in spa_vdev_add() for full details.
510 */
511 for (c = 0; c < rvd->vdev_children; c++) {
512 vdev_t *tvd = rvd->vdev_child[c];
513 if (tvd->vdev_ms_array == 0)
514 vdev_metaslab_set_size(tvd);
515 vdev_expand(tvd, txg);
516 }
517 }
518 spa_config_exit(spa, SCL_ALL, FTAG);
519
520 /*
521 * Wait for the mosconfig to be regenerated and synced.
522 */
523 txg_wait_synced(spa->spa_dsl_pool, txg);
524
525 /*
526 * Update the global config cache to reflect the new mosconfig.
527 */
528 if (!spa->spa_is_root) {
529 spa_write_cachefile(spa, B_FALSE,
530 what != SPA_CONFIG_UPDATE_POOL);
531 }
532
533 if (what == SPA_CONFIG_UPDATE_POOL)
534 spa_config_update(spa, SPA_CONFIG_UPDATE_VDEVS);
535 }
|
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 /*
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright 2013 Nexenta Systems, Inc. All rights reserved.
25 * Copyright (c) 2011, 2015 by Delphix. All rights reserved.
26 * Copyright 2017 Joyent, Inc.
27 */
28
29 #include <sys/spa.h>
30 #include <sys/fm/fs/zfs.h>
31 #include <sys/spa_impl.h>
32 #include <sys/nvpair.h>
33 #include <sys/uio.h>
34 #include <sys/fs/zfs.h>
35 #include <sys/vdev_impl.h>
36 #include <sys/zfs_ioctl.h>
37 #include <sys/utsname.h>
38 #include <sys/systeminfo.h>
39 #include <sys/sunddi.h>
40 #include <sys/zfeature.h>
41 #ifdef _KERNEL
42 #include <sys/kobj.h>
43 #include <sys/zone.h>
44 #endif
45
46 /*
47 * Pool configuration repository.
48 *
49 * Pool configuration is stored as a packed nvlist on the filesystem. By
50 * default, all pools are stored in /etc/zfs/zpool.cache and loaded on boot
51 * (when the ZFS module is loaded). Pools can also have the 'cachefile'
52 * property set that allows them to be stored in an alternate location until
53 * the control of external software.
54 *
55 * For each cache file, we have a single nvlist which holds all the
56 * configuration information. When the module loads, we read this information
57 * from /etc/zfs/zpool.cache and populate the SPA namespace. This namespace is
58 * maintained independently in spa.c. Whenever the namespace is modified, or
59 * the configuration of a pool is changed, we call spa_config_sync(), which
60 * walks through all the active pools and writes the configuration to disk.
61 */
62
63 static uint64_t spa_config_generation = 1;
64
65 /*
66 * This can be overridden in userland to preserve an alternate namespace for
67 * userland pools when doing testing.
68 */
69 const char *spa_config_path = ZPOOL_CACHE;
70
71 /*
72 * Called when the module is first loaded, this routine loads the configuration
73 * file into the SPA namespace. It does not actually open or load the pools; it
74 * only populates the namespace.
75 */
76 void
77 spa_config_load(void)
78 {
79 void *buf = NULL;
105
106 /*
107 * Read the nvlist from the file.
108 */
109 if (kobj_read_file(file, buf, fsize, 0) < 0)
110 goto out;
111
112 /*
113 * Unpack the nvlist.
114 */
115 if (nvlist_unpack(buf, fsize, &nvlist, KM_SLEEP) != 0)
116 goto out;
117
118 /*
119 * Iterate over all elements in the nvlist, creating a new spa_t for
120 * each one with the specified configuration.
121 */
122 mutex_enter(&spa_namespace_lock);
123 nvpair = NULL;
124 while ((nvpair = nvlist_next_nvpair(nvlist, nvpair)) != NULL) {
125 uint64_t guid = 0;
126
127 if (nvpair_type(nvpair) != DATA_TYPE_NVLIST)
128 continue;
129
130 child = fnvpair_value_nvlist(nvpair);
131 /* a zero guid means we simply will ignore the check later */
132 (void) nvlist_lookup_uint64(child, ZPOOL_CONFIG_POOL_GUID,
133 &guid);
134
135 if (spa_lookup(nvpair_name(nvpair)) != NULL ||
136 spa_config_guid_exists(guid)) {
137 continue;
138 }
139 (void) spa_add(nvpair_name(nvpair), child, NULL);
140 }
141 mutex_exit(&spa_namespace_lock);
142
143 nvlist_free(nvlist);
144
145 out:
146 if (buf != NULL)
147 kmem_free(buf, fsize);
148
149 kobj_close_file(file);
150 }
151
152 static int
153 spa_config_write(spa_config_dirent_t *dp, nvlist_t *nvl)
154 {
155 size_t buflen;
156 char *buf;
157 vnode_t *vp;
158 int oflags = FWRITE | FTRUNC | FCREAT | FOFFMAX;
188 err = VOP_FSYNC(vp, FSYNC, kcred, NULL);
189 if (err == 0)
190 err = vn_rename(temp, dp->scd_path, UIO_SYSSPACE);
191 (void) VOP_CLOSE(vp, oflags, 1, 0, kcred, NULL);
192 VN_RELE(vp);
193 }
194
195 (void) vn_remove(temp, UIO_SYSSPACE, RMFILE);
196
197 fnvlist_pack_free(buf, buflen);
198 kmem_free(temp, MAXPATHLEN);
199 return (err);
200 }
201
202 /*
203 * Synchronize pool configuration to disk. This must be called with the
204 * namespace lock held. Synchronizing the pool cache is typically done after
205 * the configuration has been synced to the MOS. This exposes a window where
206 * the MOS config will have been updated but the cache file has not. If
207 * the system were to crash at that instant then the cached config may not
208 * contain the correct information to open the pool and an explicity import
209 * would be required.
210 */
211 void
212 spa_config_sync(spa_t *target, boolean_t removing, boolean_t postsysevent)
213 {
214 spa_config_dirent_t *dp, *tdp;
215 nvlist_t *nvl;
216 boolean_t ccw_failure;
217 int error;
218
219 ASSERT(MUTEX_HELD(&spa_namespace_lock));
220
221 if (rootdir == NULL || !(spa_mode_global & FWRITE))
222 return;
223
224 /*
225 * Iterate over all cachefiles for the pool, past or present. When the
226 * cachefile is changed, the new one is pushed onto this list, allowing
227 * us to update previous cachefiles that no longer contain this pool.
228 */
229 ccw_failure = B_FALSE;
230 for (dp = list_head(&target->spa_config_list); dp != NULL;
231 dp = list_next(&target->spa_config_list, dp)) {
232 spa_t *spa = NULL;
329 mutex_enter(&spa_namespace_lock);
330 while ((spa = spa_next(spa)) != NULL) {
331 if (INGLOBALZONE(curproc) ||
332 zone_dataset_visible(spa_name(spa), NULL)) {
333 mutex_enter(&spa->spa_props_lock);
334 fnvlist_add_nvlist(pools, spa_name(spa),
335 spa->spa_config);
336 mutex_exit(&spa->spa_props_lock);
337 }
338 }
339 *generation = spa_config_generation;
340 mutex_exit(&spa_namespace_lock);
341
342 return (pools);
343 }
344
345 void
346 spa_config_set(spa_t *spa, nvlist_t *config)
347 {
348 mutex_enter(&spa->spa_props_lock);
349 nvlist_free(spa->spa_config);
350 spa->spa_config = config;
351 mutex_exit(&spa->spa_props_lock);
352 }
353
354 /*
355 * Generate the pool's configuration based on the current in-core state.
356 *
357 * We infer whether to generate a complete config or just one top-level config
358 * based on whether vd is the root vdev.
359 */
360 nvlist_t *
361 spa_config_generate(spa_t *spa, vdev_t *vd, uint64_t txg, int getstats)
362 {
363 nvlist_t *config, *nvroot;
364 vdev_t *rvd = spa->spa_root_vdev;
365 unsigned long hostid = 0;
366 boolean_t locked = B_FALSE;
367 uint64_t split_guid;
368
376 (SCL_CONFIG | SCL_STATE));
377
378 /*
379 * If txg is -1, report the current value of spa->spa_config_txg.
380 */
381 if (txg == -1ULL)
382 txg = spa->spa_config_txg;
383
384 config = fnvlist_alloc();
385
386 fnvlist_add_uint64(config, ZPOOL_CONFIG_VERSION, spa_version(spa));
387 fnvlist_add_string(config, ZPOOL_CONFIG_POOL_NAME, spa_name(spa));
388 fnvlist_add_uint64(config, ZPOOL_CONFIG_POOL_STATE, spa_state(spa));
389 fnvlist_add_uint64(config, ZPOOL_CONFIG_POOL_TXG, txg);
390 fnvlist_add_uint64(config, ZPOOL_CONFIG_POOL_GUID, spa_guid(spa));
391 if (spa->spa_comment != NULL) {
392 fnvlist_add_string(config, ZPOOL_CONFIG_COMMENT,
393 spa->spa_comment);
394 }
395
396 #ifdef _KERNEL
397 hostid = zone_get_hostid(NULL);
398 #else /* _KERNEL */
399 /*
400 * We're emulating the system's hostid in userland, so we can't use
401 * zone_get_hostid().
402 */
403 (void) ddi_strtoul(hw_serial, NULL, 10, &hostid);
404 #endif /* _KERNEL */
405 if (hostid != 0) {
406 fnvlist_add_uint64(config, ZPOOL_CONFIG_HOSTID, hostid);
407 }
408 fnvlist_add_string(config, ZPOOL_CONFIG_HOSTNAME, utsname.nodename);
409
410 int config_gen_flags = 0;
411 if (vd != rvd) {
412 fnvlist_add_uint64(config, ZPOOL_CONFIG_TOP_GUID,
413 vd->vdev_top->vdev_guid);
414 fnvlist_add_uint64(config, ZPOOL_CONFIG_GUID,
415 vd->vdev_guid);
416 if (vd->vdev_isspare) {
417 fnvlist_add_uint64(config,
418 ZPOOL_CONFIG_IS_SPARE, 1ULL);
419 }
420 if (vd->vdev_isspecial)
421 fnvlist_add_uint64(config,
422 ZPOOL_CONFIG_IS_SPECIAL, 1ULL);
423 if (vd->vdev_islog) {
424 fnvlist_add_uint64(config,
425 ZPOOL_CONFIG_IS_LOG, 1ULL);
426 }
427 vd = vd->vdev_top; /* label contains top config */
428 } else {
429 /*
430 * Only add the (potentially large) split information
431 * in the mos config, and not in the vdev labels
432 */
433 if (spa->spa_config_splitting != NULL)
434 fnvlist_add_nvlist(config, ZPOOL_CONFIG_SPLIT,
435 spa->spa_config_splitting);
436 fnvlist_add_boolean(config,
437 ZPOOL_CONFIG_HAS_PER_VDEV_ZAPS);
438
439 config_gen_flags |= VDEV_CONFIG_MOS;
440 }
441
442 /*
443 * Add the top-level config. We even add this on pools which
444 * don't support holes in the namespace.
445 */
446 vdev_top_config_generate(spa, config);
447
448 /*
449 * If we're splitting, record the original pool's guid.
450 */
451 if (spa->spa_config_splitting != NULL &&
452 nvlist_lookup_uint64(spa->spa_config_splitting,
453 ZPOOL_CONFIG_SPLIT_GUID, &split_guid) == 0) {
454 fnvlist_add_uint64(config, ZPOOL_CONFIG_SPLIT_GUID,
455 split_guid);
456 }
457
458 nvroot = vdev_config_generate(spa, vd, getstats, config_gen_flags);
459 fnvlist_add_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, nvroot);
460 nvlist_free(nvroot);
461
462 /* If we're getting stats, calculate trim progress from leaf vdevs. */
463 if (getstats) {
464 uint64_t prog, rate, start_time, stop_time;
465
466 spa_get_trim_prog(spa, &prog, &rate, &start_time, &stop_time);
467 fnvlist_add_uint64(config, ZPOOL_CONFIG_TRIM_PROG, prog);
468 fnvlist_add_uint64(config, ZPOOL_CONFIG_TRIM_RATE, rate);
469 fnvlist_add_uint64(config, ZPOOL_CONFIG_TRIM_START_TIME,
470 start_time);
471 fnvlist_add_uint64(config, ZPOOL_CONFIG_TRIM_STOP_TIME,
472 stop_time);
473 }
474
475 /*
476 * Store what's necessary for reading the MOS in the label.
477 */
478 fnvlist_add_nvlist(config, ZPOOL_CONFIG_FEATURES_FOR_READ,
479 spa->spa_label_features);
480
481 if (getstats && spa_load_state(spa) == SPA_LOAD_NONE) {
482 ddt_histogram_t *ddh;
483 ddt_stat_t *dds;
484 ddt_object_t *ddo;
485
486 ddh = kmem_zalloc(sizeof (ddt_histogram_t), KM_SLEEP);
487 ddt_get_dedup_histogram(spa, ddh);
488 fnvlist_add_uint64_array(config,
489 ZPOOL_CONFIG_DDT_HISTOGRAM,
490 (uint64_t *)ddh, sizeof (*ddh) / sizeof (uint64_t));
491 kmem_free(ddh, sizeof (ddt_histogram_t));
492
493 ddo = kmem_zalloc(sizeof (ddt_object_t), KM_SLEEP);
494 ddt_get_dedup_object_stats(spa, ddo);
537 * so it will be able to translate the new DVAs.)
538 * See comments in spa_vdev_add() for full details.
539 */
540 for (c = 0; c < rvd->vdev_children; c++) {
541 vdev_t *tvd = rvd->vdev_child[c];
542 if (tvd->vdev_ms_array == 0)
543 vdev_metaslab_set_size(tvd);
544 vdev_expand(tvd, txg);
545 }
546 }
547 spa_config_exit(spa, SCL_ALL, FTAG);
548
549 /*
550 * Wait for the mosconfig to be regenerated and synced.
551 */
552 txg_wait_synced(spa->spa_dsl_pool, txg);
553
554 /*
555 * Update the global config cache to reflect the new mosconfig.
556 */
557 if (!spa->spa_is_root)
558 spa_config_sync(spa, B_FALSE, what != SPA_CONFIG_UPDATE_POOL);
559
560 if (what == SPA_CONFIG_UPDATE_POOL)
561 spa_config_update(spa, SPA_CONFIG_UPDATE_VDEVS);
562 }
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