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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. |
4f072827 | 24 | * Copyright (c) 2011, 2020 by Delphix. All rights reserved. |
733b5722 | 25 | * Copyright (c) 2018, Nexenta Systems, Inc. All rights reserved. |
0c66c32d | 26 | * Copyright (c) 2014 Spectra Logic Corporation, All rights reserved. |
3c67d83a | 27 | * Copyright 2013 Saso Kiselkov. All rights reserved. |
e550644f BB |
28 | * Copyright (c) 2014 Integros [integros.com] |
29 | * Copyright 2016 Toomas Soome <tsoome@me.com> | |
a0bd735a | 30 | * Copyright (c) 2016 Actifio, Inc. All rights reserved. |
f65fbee1 | 31 | * Copyright 2018 Joyent, Inc. |
3c819a2c | 32 | * Copyright (c) 2017, 2019, Datto Inc. All rights reserved. |
12fa0466 | 33 | * Copyright 2017 Joyent, Inc. |
cc99f275 | 34 | * Copyright (c) 2017, Intel Corporation. |
658fb802 | 35 | * Copyright (c) 2021, Colm Buckley <colm@tuatha.org> |
a38718a6 | 36 | */ |
34dc7c2f | 37 | |
34dc7c2f | 38 | /* |
e49f1e20 WA |
39 | * SPA: Storage Pool Allocator |
40 | * | |
34dc7c2f BB |
41 | * This file contains all the routines used when modifying on-disk SPA state. |
42 | * This includes opening, importing, destroying, exporting a pool, and syncing a | |
43 | * pool. | |
44 | */ | |
45 | ||
46 | #include <sys/zfs_context.h> | |
47 | #include <sys/fm/fs/zfs.h> | |
48 | #include <sys/spa_impl.h> | |
49 | #include <sys/zio.h> | |
50 | #include <sys/zio_checksum.h> | |
34dc7c2f BB |
51 | #include <sys/dmu.h> |
52 | #include <sys/dmu_tx.h> | |
53 | #include <sys/zap.h> | |
54 | #include <sys/zil.h> | |
428870ff | 55 | #include <sys/ddt.h> |
34dc7c2f | 56 | #include <sys/vdev_impl.h> |
a1d477c2 MA |
57 | #include <sys/vdev_removal.h> |
58 | #include <sys/vdev_indirect_mapping.h> | |
59 | #include <sys/vdev_indirect_births.h> | |
619f0976 | 60 | #include <sys/vdev_initialize.h> |
9a49d3f3 | 61 | #include <sys/vdev_rebuild.h> |
1b939560 | 62 | #include <sys/vdev_trim.h> |
c28b2279 | 63 | #include <sys/vdev_disk.h> |
b2255edc | 64 | #include <sys/vdev_draid.h> |
34dc7c2f | 65 | #include <sys/metaslab.h> |
428870ff | 66 | #include <sys/metaslab_impl.h> |
379ca9cf | 67 | #include <sys/mmp.h> |
34dc7c2f BB |
68 | #include <sys/uberblock_impl.h> |
69 | #include <sys/txg.h> | |
70 | #include <sys/avl.h> | |
a1d477c2 | 71 | #include <sys/bpobj.h> |
34dc7c2f BB |
72 | #include <sys/dmu_traverse.h> |
73 | #include <sys/dmu_objset.h> | |
74 | #include <sys/unique.h> | |
75 | #include <sys/dsl_pool.h> | |
76 | #include <sys/dsl_dataset.h> | |
77 | #include <sys/dsl_dir.h> | |
78 | #include <sys/dsl_prop.h> | |
79 | #include <sys/dsl_synctask.h> | |
80 | #include <sys/fs/zfs.h> | |
81 | #include <sys/arc.h> | |
82 | #include <sys/callb.h> | |
83 | #include <sys/systeminfo.h> | |
34dc7c2f | 84 | #include <sys/spa_boot.h> |
9babb374 | 85 | #include <sys/zfs_ioctl.h> |
428870ff | 86 | #include <sys/dsl_scan.h> |
9ae529ec | 87 | #include <sys/zfeature.h> |
13fe0198 | 88 | #include <sys/dsl_destroy.h> |
526af785 | 89 | #include <sys/zvol.h> |
34dc7c2f | 90 | |
d164b209 | 91 | #ifdef _KERNEL |
12fa0466 DE |
92 | #include <sys/fm/protocol.h> |
93 | #include <sys/fm/util.h> | |
428870ff | 94 | #include <sys/callb.h> |
d164b209 | 95 | #include <sys/zone.h> |
c8242a96 | 96 | #include <sys/vmsystm.h> |
d164b209 BB |
97 | #endif /* _KERNEL */ |
98 | ||
34dc7c2f BB |
99 | #include "zfs_prop.h" |
100 | #include "zfs_comutil.h" | |
101 | ||
e6cfd633 WA |
102 | /* |
103 | * The interval, in seconds, at which failed configuration cache file writes | |
104 | * should be retried. | |
105 | */ | |
a1d477c2 | 106 | int zfs_ccw_retry_interval = 300; |
e6cfd633 | 107 | |
428870ff | 108 | typedef enum zti_modes { |
7ef5e54e | 109 | ZTI_MODE_FIXED, /* value is # of threads (min 1) */ |
7ef5e54e | 110 | ZTI_MODE_BATCH, /* cpu-intensive; value is ignored */ |
7457b024 | 111 | ZTI_MODE_SCALE, /* Taskqs scale with CPUs. */ |
7ef5e54e AL |
112 | ZTI_MODE_NULL, /* don't create a taskq */ |
113 | ZTI_NMODES | |
428870ff | 114 | } zti_modes_t; |
34dc7c2f | 115 | |
7ef5e54e AL |
116 | #define ZTI_P(n, q) { ZTI_MODE_FIXED, (n), (q) } |
117 | #define ZTI_PCT(n) { ZTI_MODE_ONLINE_PERCENT, (n), 1 } | |
118 | #define ZTI_BATCH { ZTI_MODE_BATCH, 0, 1 } | |
7457b024 | 119 | #define ZTI_SCALE { ZTI_MODE_SCALE, 0, 1 } |
7ef5e54e | 120 | #define ZTI_NULL { ZTI_MODE_NULL, 0, 0 } |
9babb374 | 121 | |
7ef5e54e AL |
122 | #define ZTI_N(n) ZTI_P(n, 1) |
123 | #define ZTI_ONE ZTI_N(1) | |
9babb374 BB |
124 | |
125 | typedef struct zio_taskq_info { | |
7ef5e54e | 126 | zti_modes_t zti_mode; |
428870ff | 127 | uint_t zti_value; |
7ef5e54e | 128 | uint_t zti_count; |
9babb374 BB |
129 | } zio_taskq_info_t; |
130 | ||
131 | static const char *const zio_taskq_types[ZIO_TASKQ_TYPES] = { | |
451041db | 132 | "iss", "iss_h", "int", "int_h" |
9babb374 BB |
133 | }; |
134 | ||
428870ff | 135 | /* |
7ef5e54e AL |
136 | * This table defines the taskq settings for each ZFS I/O type. When |
137 | * initializing a pool, we use this table to create an appropriately sized | |
138 | * taskq. Some operations are low volume and therefore have a small, static | |
139 | * number of threads assigned to their taskqs using the ZTI_N(#) or ZTI_ONE | |
140 | * macros. Other operations process a large amount of data; the ZTI_BATCH | |
141 | * macro causes us to create a taskq oriented for throughput. Some operations | |
1b939560 | 142 | * are so high frequency and short-lived that the taskq itself can become a |
7ef5e54e AL |
143 | * point of lock contention. The ZTI_P(#, #) macro indicates that we need an |
144 | * additional degree of parallelism specified by the number of threads per- | |
145 | * taskq and the number of taskqs; when dispatching an event in this case, the | |
7457b024 AM |
146 | * particular taskq is chosen at random. ZTI_SCALE is similar to ZTI_BATCH, |
147 | * but with number of taskqs also scaling with number of CPUs. | |
7ef5e54e AL |
148 | * |
149 | * The different taskq priorities are to handle the different contexts (issue | |
150 | * and interrupt) and then to reserve threads for ZIO_PRIORITY_NOW I/Os that | |
151 | * need to be handled with minimum delay. | |
428870ff BB |
152 | */ |
153 | const zio_taskq_info_t zio_taskqs[ZIO_TYPES][ZIO_TASKQ_TYPES] = { | |
154 | /* ISSUE ISSUE_HIGH INTR INTR_HIGH */ | |
7ef5e54e | 155 | { ZTI_ONE, ZTI_NULL, ZTI_ONE, ZTI_NULL }, /* NULL */ |
7457b024 AM |
156 | { ZTI_N(8), ZTI_NULL, ZTI_SCALE, ZTI_NULL }, /* READ */ |
157 | { ZTI_BATCH, ZTI_N(5), ZTI_SCALE, ZTI_N(5) }, /* WRITE */ | |
158 | { ZTI_SCALE, ZTI_NULL, ZTI_ONE, ZTI_NULL }, /* FREE */ | |
7ef5e54e AL |
159 | { ZTI_ONE, ZTI_NULL, ZTI_ONE, ZTI_NULL }, /* CLAIM */ |
160 | { ZTI_ONE, ZTI_NULL, ZTI_ONE, ZTI_NULL }, /* IOCTL */ | |
1b939560 | 161 | { ZTI_N(4), ZTI_NULL, ZTI_ONE, ZTI_NULL }, /* TRIM */ |
9babb374 BB |
162 | }; |
163 | ||
13fe0198 MA |
164 | static void spa_sync_version(void *arg, dmu_tx_t *tx); |
165 | static void spa_sync_props(void *arg, dmu_tx_t *tx); | |
b128c09f | 166 | static boolean_t spa_has_active_shared_spare(spa_t *spa); |
d2734cce | 167 | static int spa_load_impl(spa_t *spa, spa_import_type_t type, char **ereport); |
572e2857 | 168 | static void spa_vdev_resilver_done(spa_t *spa); |
428870ff | 169 | |
7457b024 AM |
170 | uint_t zio_taskq_batch_pct = 80; /* 1 thread per cpu in pset */ |
171 | uint_t zio_taskq_batch_tpq; /* threads per taskq */ | |
428870ff BB |
172 | boolean_t zio_taskq_sysdc = B_TRUE; /* use SDC scheduling class */ |
173 | uint_t zio_taskq_basedc = 80; /* base duty cycle */ | |
174 | ||
175 | boolean_t spa_create_process = B_TRUE; /* no process ==> no sysdc */ | |
176 | ||
afd2f7b7 PZ |
177 | /* |
178 | * Report any spa_load_verify errors found, but do not fail spa_load. | |
179 | * This is used by zdb to analyze non-idle pools. | |
180 | */ | |
181 | boolean_t spa_load_verify_dryrun = B_FALSE; | |
182 | ||
428870ff BB |
183 | /* |
184 | * This (illegal) pool name is used when temporarily importing a spa_t in order | |
185 | * to get the vdev stats associated with the imported devices. | |
186 | */ | |
187 | #define TRYIMPORT_NAME "$import" | |
34dc7c2f | 188 | |
6cb8e530 PZ |
189 | /* |
190 | * For debugging purposes: print out vdev tree during pool import. | |
191 | */ | |
192 | int spa_load_print_vdev_tree = B_FALSE; | |
193 | ||
194 | /* | |
195 | * A non-zero value for zfs_max_missing_tvds means that we allow importing | |
196 | * pools with missing top-level vdevs. This is strictly intended for advanced | |
197 | * pool recovery cases since missing data is almost inevitable. Pools with | |
198 | * missing devices can only be imported read-only for safety reasons, and their | |
199 | * fail-mode will be automatically set to "continue". | |
200 | * | |
201 | * With 1 missing vdev we should be able to import the pool and mount all | |
202 | * datasets. User data that was not modified after the missing device has been | |
203 | * added should be recoverable. This means that snapshots created prior to the | |
204 | * addition of that device should be completely intact. | |
205 | * | |
206 | * With 2 missing vdevs, some datasets may fail to mount since there are | |
207 | * dataset statistics that are stored as regular metadata. Some data might be | |
208 | * recoverable if those vdevs were added recently. | |
209 | * | |
210 | * With 3 or more missing vdevs, the pool is severely damaged and MOS entries | |
211 | * may be missing entirely. Chances of data recovery are very low. Note that | |
212 | * there are also risks of performing an inadvertent rewind as we might be | |
213 | * missing all the vdevs with the latest uberblocks. | |
214 | */ | |
215 | unsigned long zfs_max_missing_tvds = 0; | |
216 | ||
217 | /* | |
218 | * The parameters below are similar to zfs_max_missing_tvds but are only | |
219 | * intended for a preliminary open of the pool with an untrusted config which | |
220 | * might be incomplete or out-dated. | |
221 | * | |
222 | * We are more tolerant for pools opened from a cachefile since we could have | |
223 | * an out-dated cachefile where a device removal was not registered. | |
224 | * We could have set the limit arbitrarily high but in the case where devices | |
225 | * are really missing we would want to return the proper error codes; we chose | |
226 | * SPA_DVAS_PER_BP - 1 so that some copies of the MOS would still be available | |
227 | * and we get a chance to retrieve the trusted config. | |
228 | */ | |
229 | uint64_t zfs_max_missing_tvds_cachefile = SPA_DVAS_PER_BP - 1; | |
d2734cce | 230 | |
6cb8e530 PZ |
231 | /* |
232 | * In the case where config was assembled by scanning device paths (/dev/dsks | |
233 | * by default) we are less tolerant since all the existing devices should have | |
234 | * been detected and we want spa_load to return the right error codes. | |
235 | */ | |
236 | uint64_t zfs_max_missing_tvds_scan = 0; | |
237 | ||
d2734cce SD |
238 | /* |
239 | * Debugging aid that pauses spa_sync() towards the end. | |
240 | */ | |
241 | boolean_t zfs_pause_spa_sync = B_FALSE; | |
242 | ||
37f03da8 SH |
243 | /* |
244 | * Variables to indicate the livelist condense zthr func should wait at certain | |
245 | * points for the livelist to be removed - used to test condense/destroy races | |
246 | */ | |
247 | int zfs_livelist_condense_zthr_pause = 0; | |
248 | int zfs_livelist_condense_sync_pause = 0; | |
249 | ||
250 | /* | |
251 | * Variables to track whether or not condense cancellation has been | |
252 | * triggered in testing. | |
253 | */ | |
254 | int zfs_livelist_condense_sync_cancel = 0; | |
255 | int zfs_livelist_condense_zthr_cancel = 0; | |
256 | ||
257 | /* | |
258 | * Variable to track whether or not extra ALLOC blkptrs were added to a | |
259 | * livelist entry while it was being condensed (caused by the way we track | |
260 | * remapped blkptrs in dbuf_remap_impl) | |
261 | */ | |
262 | int zfs_livelist_condense_new_alloc = 0; | |
263 | ||
34dc7c2f BB |
264 | /* |
265 | * ========================================================================== | |
266 | * SPA properties routines | |
267 | * ========================================================================== | |
268 | */ | |
269 | ||
270 | /* | |
271 | * Add a (source=src, propname=propval) list to an nvlist. | |
272 | */ | |
273 | static void | |
274 | spa_prop_add_list(nvlist_t *nvl, zpool_prop_t prop, char *strval, | |
275 | uint64_t intval, zprop_source_t src) | |
276 | { | |
277 | const char *propname = zpool_prop_to_name(prop); | |
278 | nvlist_t *propval; | |
279 | ||
79c76d5b | 280 | VERIFY(nvlist_alloc(&propval, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
34dc7c2f BB |
281 | VERIFY(nvlist_add_uint64(propval, ZPROP_SOURCE, src) == 0); |
282 | ||
283 | if (strval != NULL) | |
284 | VERIFY(nvlist_add_string(propval, ZPROP_VALUE, strval) == 0); | |
285 | else | |
286 | VERIFY(nvlist_add_uint64(propval, ZPROP_VALUE, intval) == 0); | |
287 | ||
288 | VERIFY(nvlist_add_nvlist(nvl, propname, propval) == 0); | |
289 | nvlist_free(propval); | |
290 | } | |
291 | ||
292 | /* | |
293 | * Get property values from the spa configuration. | |
294 | */ | |
295 | static void | |
296 | spa_prop_get_config(spa_t *spa, nvlist_t **nvp) | |
297 | { | |
1bd201e7 | 298 | vdev_t *rvd = spa->spa_root_vdev; |
9ae529ec | 299 | dsl_pool_t *pool = spa->spa_dsl_pool; |
f3a7f661 | 300 | uint64_t size, alloc, cap, version; |
82ab6848 | 301 | const zprop_source_t src = ZPROP_SRC_NONE; |
b128c09f | 302 | spa_config_dirent_t *dp; |
f3a7f661 | 303 | metaslab_class_t *mc = spa_normal_class(spa); |
b128c09f BB |
304 | |
305 | ASSERT(MUTEX_HELD(&spa->spa_props_lock)); | |
34dc7c2f | 306 | |
1bd201e7 | 307 | if (rvd != NULL) { |
cc99f275 DB |
308 | alloc = metaslab_class_get_alloc(mc); |
309 | alloc += metaslab_class_get_alloc(spa_special_class(spa)); | |
310 | alloc += metaslab_class_get_alloc(spa_dedup_class(spa)); | |
aa755b35 | 311 | alloc += metaslab_class_get_alloc(spa_embedded_log_class(spa)); |
cc99f275 DB |
312 | |
313 | size = metaslab_class_get_space(mc); | |
314 | size += metaslab_class_get_space(spa_special_class(spa)); | |
315 | size += metaslab_class_get_space(spa_dedup_class(spa)); | |
aa755b35 | 316 | size += metaslab_class_get_space(spa_embedded_log_class(spa)); |
cc99f275 | 317 | |
d164b209 BB |
318 | spa_prop_add_list(*nvp, ZPOOL_PROP_NAME, spa_name(spa), 0, src); |
319 | spa_prop_add_list(*nvp, ZPOOL_PROP_SIZE, NULL, size, src); | |
428870ff BB |
320 | spa_prop_add_list(*nvp, ZPOOL_PROP_ALLOCATED, NULL, alloc, src); |
321 | spa_prop_add_list(*nvp, ZPOOL_PROP_FREE, NULL, | |
322 | size - alloc, src); | |
d2734cce SD |
323 | spa_prop_add_list(*nvp, ZPOOL_PROP_CHECKPOINT, NULL, |
324 | spa->spa_checkpoint_info.sci_dspace, src); | |
1bd201e7 | 325 | |
f3a7f661 GW |
326 | spa_prop_add_list(*nvp, ZPOOL_PROP_FRAGMENTATION, NULL, |
327 | metaslab_class_fragmentation(mc), src); | |
328 | spa_prop_add_list(*nvp, ZPOOL_PROP_EXPANDSZ, NULL, | |
329 | metaslab_class_expandable_space(mc), src); | |
572e2857 | 330 | spa_prop_add_list(*nvp, ZPOOL_PROP_READONLY, NULL, |
da92d5cb | 331 | (spa_mode(spa) == SPA_MODE_READ), src); |
d164b209 | 332 | |
428870ff | 333 | cap = (size == 0) ? 0 : (alloc * 100 / size); |
d164b209 BB |
334 | spa_prop_add_list(*nvp, ZPOOL_PROP_CAPACITY, NULL, cap, src); |
335 | ||
428870ff BB |
336 | spa_prop_add_list(*nvp, ZPOOL_PROP_DEDUPRATIO, NULL, |
337 | ddt_get_pool_dedup_ratio(spa), src); | |
338 | ||
d164b209 | 339 | spa_prop_add_list(*nvp, ZPOOL_PROP_HEALTH, NULL, |
1bd201e7 | 340 | rvd->vdev_state, src); |
d164b209 BB |
341 | |
342 | version = spa_version(spa); | |
82ab6848 HM |
343 | if (version == zpool_prop_default_numeric(ZPOOL_PROP_VERSION)) { |
344 | spa_prop_add_list(*nvp, ZPOOL_PROP_VERSION, NULL, | |
345 | version, ZPROP_SRC_DEFAULT); | |
346 | } else { | |
347 | spa_prop_add_list(*nvp, ZPOOL_PROP_VERSION, NULL, | |
348 | version, ZPROP_SRC_LOCAL); | |
349 | } | |
a448a255 SD |
350 | spa_prop_add_list(*nvp, ZPOOL_PROP_LOAD_GUID, |
351 | NULL, spa_load_guid(spa), src); | |
d164b209 | 352 | } |
34dc7c2f | 353 | |
9ae529ec | 354 | if (pool != NULL) { |
9ae529ec CS |
355 | /* |
356 | * The $FREE directory was introduced in SPA_VERSION_DEADLISTS, | |
357 | * when opening pools before this version freedir will be NULL. | |
358 | */ | |
fbeddd60 | 359 | if (pool->dp_free_dir != NULL) { |
9ae529ec | 360 | spa_prop_add_list(*nvp, ZPOOL_PROP_FREEING, NULL, |
d683ddbb JG |
361 | dsl_dir_phys(pool->dp_free_dir)->dd_used_bytes, |
362 | src); | |
9ae529ec CS |
363 | } else { |
364 | spa_prop_add_list(*nvp, ZPOOL_PROP_FREEING, | |
365 | NULL, 0, src); | |
366 | } | |
fbeddd60 MA |
367 | |
368 | if (pool->dp_leak_dir != NULL) { | |
369 | spa_prop_add_list(*nvp, ZPOOL_PROP_LEAKED, NULL, | |
d683ddbb JG |
370 | dsl_dir_phys(pool->dp_leak_dir)->dd_used_bytes, |
371 | src); | |
fbeddd60 MA |
372 | } else { |
373 | spa_prop_add_list(*nvp, ZPOOL_PROP_LEAKED, | |
374 | NULL, 0, src); | |
375 | } | |
9ae529ec CS |
376 | } |
377 | ||
34dc7c2f | 378 | spa_prop_add_list(*nvp, ZPOOL_PROP_GUID, NULL, spa_guid(spa), src); |
34dc7c2f | 379 | |
d96eb2b1 DM |
380 | if (spa->spa_comment != NULL) { |
381 | spa_prop_add_list(*nvp, ZPOOL_PROP_COMMENT, spa->spa_comment, | |
382 | 0, ZPROP_SRC_LOCAL); | |
383 | } | |
384 | ||
658fb802 CB |
385 | if (spa->spa_compatibility != NULL) { |
386 | spa_prop_add_list(*nvp, ZPOOL_PROP_COMPATIBILITY, | |
387 | spa->spa_compatibility, 0, ZPROP_SRC_LOCAL); | |
388 | } | |
389 | ||
34dc7c2f BB |
390 | if (spa->spa_root != NULL) |
391 | spa_prop_add_list(*nvp, ZPOOL_PROP_ALTROOT, spa->spa_root, | |
392 | 0, ZPROP_SRC_LOCAL); | |
393 | ||
f1512ee6 MA |
394 | if (spa_feature_is_enabled(spa, SPA_FEATURE_LARGE_BLOCKS)) { |
395 | spa_prop_add_list(*nvp, ZPOOL_PROP_MAXBLOCKSIZE, NULL, | |
396 | MIN(zfs_max_recordsize, SPA_MAXBLOCKSIZE), ZPROP_SRC_NONE); | |
397 | } else { | |
398 | spa_prop_add_list(*nvp, ZPOOL_PROP_MAXBLOCKSIZE, NULL, | |
399 | SPA_OLD_MAXBLOCKSIZE, ZPROP_SRC_NONE); | |
400 | } | |
401 | ||
50c957f7 NB |
402 | if (spa_feature_is_enabled(spa, SPA_FEATURE_LARGE_DNODE)) { |
403 | spa_prop_add_list(*nvp, ZPOOL_PROP_MAXDNODESIZE, NULL, | |
404 | DNODE_MAX_SIZE, ZPROP_SRC_NONE); | |
405 | } else { | |
406 | spa_prop_add_list(*nvp, ZPOOL_PROP_MAXDNODESIZE, NULL, | |
407 | DNODE_MIN_SIZE, ZPROP_SRC_NONE); | |
408 | } | |
409 | ||
b128c09f BB |
410 | if ((dp = list_head(&spa->spa_config_list)) != NULL) { |
411 | if (dp->scd_path == NULL) { | |
34dc7c2f | 412 | spa_prop_add_list(*nvp, ZPOOL_PROP_CACHEFILE, |
b128c09f BB |
413 | "none", 0, ZPROP_SRC_LOCAL); |
414 | } else if (strcmp(dp->scd_path, spa_config_path) != 0) { | |
34dc7c2f | 415 | spa_prop_add_list(*nvp, ZPOOL_PROP_CACHEFILE, |
b128c09f | 416 | dp->scd_path, 0, ZPROP_SRC_LOCAL); |
34dc7c2f BB |
417 | } |
418 | } | |
419 | } | |
420 | ||
421 | /* | |
422 | * Get zpool property values. | |
423 | */ | |
424 | int | |
425 | spa_prop_get(spa_t *spa, nvlist_t **nvp) | |
426 | { | |
428870ff | 427 | objset_t *mos = spa->spa_meta_objset; |
34dc7c2f BB |
428 | zap_cursor_t zc; |
429 | zap_attribute_t za; | |
1743c737 | 430 | dsl_pool_t *dp; |
34dc7c2f BB |
431 | int err; |
432 | ||
79c76d5b | 433 | err = nvlist_alloc(nvp, NV_UNIQUE_NAME, KM_SLEEP); |
c28b2279 | 434 | if (err) |
d1d7e268 | 435 | return (err); |
34dc7c2f | 436 | |
1743c737 AM |
437 | dp = spa_get_dsl(spa); |
438 | dsl_pool_config_enter(dp, FTAG); | |
b128c09f BB |
439 | mutex_enter(&spa->spa_props_lock); |
440 | ||
34dc7c2f BB |
441 | /* |
442 | * Get properties from the spa config. | |
443 | */ | |
444 | spa_prop_get_config(spa, nvp); | |
445 | ||
34dc7c2f | 446 | /* If no pool property object, no more prop to get. */ |
1743c737 | 447 | if (mos == NULL || spa->spa_pool_props_object == 0) |
c28b2279 | 448 | goto out; |
34dc7c2f BB |
449 | |
450 | /* | |
451 | * Get properties from the MOS pool property object. | |
452 | */ | |
453 | for (zap_cursor_init(&zc, mos, spa->spa_pool_props_object); | |
454 | (err = zap_cursor_retrieve(&zc, &za)) == 0; | |
455 | zap_cursor_advance(&zc)) { | |
456 | uint64_t intval = 0; | |
457 | char *strval = NULL; | |
458 | zprop_source_t src = ZPROP_SRC_DEFAULT; | |
459 | zpool_prop_t prop; | |
460 | ||
31864e3d | 461 | if ((prop = zpool_name_to_prop(za.za_name)) == ZPOOL_PROP_INVAL) |
34dc7c2f BB |
462 | continue; |
463 | ||
464 | switch (za.za_integer_length) { | |
465 | case 8: | |
466 | /* integer property */ | |
467 | if (za.za_first_integer != | |
468 | zpool_prop_default_numeric(prop)) | |
469 | src = ZPROP_SRC_LOCAL; | |
470 | ||
471 | if (prop == ZPOOL_PROP_BOOTFS) { | |
34dc7c2f BB |
472 | dsl_dataset_t *ds = NULL; |
473 | ||
619f0976 GW |
474 | err = dsl_dataset_hold_obj(dp, |
475 | za.za_first_integer, FTAG, &ds); | |
1743c737 | 476 | if (err != 0) |
34dc7c2f | 477 | break; |
34dc7c2f | 478 | |
eca7b760 | 479 | strval = kmem_alloc(ZFS_MAX_DATASET_NAME_LEN, |
79c76d5b | 480 | KM_SLEEP); |
34dc7c2f | 481 | dsl_dataset_name(ds, strval); |
b128c09f | 482 | dsl_dataset_rele(ds, FTAG); |
34dc7c2f BB |
483 | } else { |
484 | strval = NULL; | |
485 | intval = za.za_first_integer; | |
486 | } | |
487 | ||
488 | spa_prop_add_list(*nvp, prop, strval, intval, src); | |
489 | ||
490 | if (strval != NULL) | |
eca7b760 | 491 | kmem_free(strval, ZFS_MAX_DATASET_NAME_LEN); |
34dc7c2f BB |
492 | |
493 | break; | |
494 | ||
495 | case 1: | |
496 | /* string property */ | |
79c76d5b | 497 | strval = kmem_alloc(za.za_num_integers, KM_SLEEP); |
34dc7c2f BB |
498 | err = zap_lookup(mos, spa->spa_pool_props_object, |
499 | za.za_name, 1, za.za_num_integers, strval); | |
500 | if (err) { | |
501 | kmem_free(strval, za.za_num_integers); | |
502 | break; | |
503 | } | |
504 | spa_prop_add_list(*nvp, prop, strval, 0, src); | |
505 | kmem_free(strval, za.za_num_integers); | |
506 | break; | |
507 | ||
508 | default: | |
509 | break; | |
510 | } | |
511 | } | |
512 | zap_cursor_fini(&zc); | |
34dc7c2f | 513 | out: |
1743c737 AM |
514 | mutex_exit(&spa->spa_props_lock); |
515 | dsl_pool_config_exit(dp, FTAG); | |
34dc7c2f BB |
516 | if (err && err != ENOENT) { |
517 | nvlist_free(*nvp); | |
518 | *nvp = NULL; | |
519 | return (err); | |
520 | } | |
521 | ||
522 | return (0); | |
523 | } | |
524 | ||
525 | /* | |
526 | * Validate the given pool properties nvlist and modify the list | |
527 | * for the property values to be set. | |
528 | */ | |
529 | static int | |
530 | spa_prop_validate(spa_t *spa, nvlist_t *props) | |
531 | { | |
532 | nvpair_t *elem; | |
533 | int error = 0, reset_bootfs = 0; | |
d4ed6673 | 534 | uint64_t objnum = 0; |
9ae529ec | 535 | boolean_t has_feature = B_FALSE; |
34dc7c2f BB |
536 | |
537 | elem = NULL; | |
538 | while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { | |
34dc7c2f | 539 | uint64_t intval; |
9ae529ec CS |
540 | char *strval, *slash, *check, *fname; |
541 | const char *propname = nvpair_name(elem); | |
542 | zpool_prop_t prop = zpool_name_to_prop(propname); | |
543 | ||
31864e3d BB |
544 | switch (prop) { |
545 | case ZPOOL_PROP_INVAL: | |
9ae529ec | 546 | if (!zpool_prop_feature(propname)) { |
2e528b49 | 547 | error = SET_ERROR(EINVAL); |
9ae529ec CS |
548 | break; |
549 | } | |
550 | ||
551 | /* | |
552 | * Sanitize the input. | |
553 | */ | |
554 | if (nvpair_type(elem) != DATA_TYPE_UINT64) { | |
2e528b49 | 555 | error = SET_ERROR(EINVAL); |
9ae529ec CS |
556 | break; |
557 | } | |
558 | ||
559 | if (nvpair_value_uint64(elem, &intval) != 0) { | |
2e528b49 | 560 | error = SET_ERROR(EINVAL); |
9ae529ec CS |
561 | break; |
562 | } | |
34dc7c2f | 563 | |
9ae529ec | 564 | if (intval != 0) { |
2e528b49 | 565 | error = SET_ERROR(EINVAL); |
9ae529ec CS |
566 | break; |
567 | } | |
34dc7c2f | 568 | |
9ae529ec CS |
569 | fname = strchr(propname, '@') + 1; |
570 | if (zfeature_lookup_name(fname, NULL) != 0) { | |
2e528b49 | 571 | error = SET_ERROR(EINVAL); |
9ae529ec CS |
572 | break; |
573 | } | |
574 | ||
575 | has_feature = B_TRUE; | |
576 | break; | |
34dc7c2f | 577 | |
34dc7c2f BB |
578 | case ZPOOL_PROP_VERSION: |
579 | error = nvpair_value_uint64(elem, &intval); | |
580 | if (!error && | |
9ae529ec CS |
581 | (intval < spa_version(spa) || |
582 | intval > SPA_VERSION_BEFORE_FEATURES || | |
583 | has_feature)) | |
2e528b49 | 584 | error = SET_ERROR(EINVAL); |
34dc7c2f BB |
585 | break; |
586 | ||
587 | case ZPOOL_PROP_DELEGATION: | |
588 | case ZPOOL_PROP_AUTOREPLACE: | |
b128c09f | 589 | case ZPOOL_PROP_LISTSNAPS: |
9babb374 | 590 | case ZPOOL_PROP_AUTOEXPAND: |
1b939560 | 591 | case ZPOOL_PROP_AUTOTRIM: |
34dc7c2f BB |
592 | error = nvpair_value_uint64(elem, &intval); |
593 | if (!error && intval > 1) | |
2e528b49 | 594 | error = SET_ERROR(EINVAL); |
34dc7c2f BB |
595 | break; |
596 | ||
379ca9cf OF |
597 | case ZPOOL_PROP_MULTIHOST: |
598 | error = nvpair_value_uint64(elem, &intval); | |
599 | if (!error && intval > 1) | |
600 | error = SET_ERROR(EINVAL); | |
601 | ||
25f06d67 BB |
602 | if (!error) { |
603 | uint32_t hostid = zone_get_hostid(NULL); | |
604 | if (hostid) | |
605 | spa->spa_hostid = hostid; | |
606 | else | |
607 | error = SET_ERROR(ENOTSUP); | |
608 | } | |
379ca9cf OF |
609 | |
610 | break; | |
611 | ||
34dc7c2f | 612 | case ZPOOL_PROP_BOOTFS: |
9babb374 BB |
613 | /* |
614 | * If the pool version is less than SPA_VERSION_BOOTFS, | |
615 | * or the pool is still being created (version == 0), | |
616 | * the bootfs property cannot be set. | |
617 | */ | |
34dc7c2f | 618 | if (spa_version(spa) < SPA_VERSION_BOOTFS) { |
2e528b49 | 619 | error = SET_ERROR(ENOTSUP); |
34dc7c2f BB |
620 | break; |
621 | } | |
622 | ||
623 | /* | |
b128c09f | 624 | * Make sure the vdev config is bootable |
34dc7c2f | 625 | */ |
b128c09f | 626 | if (!vdev_is_bootable(spa->spa_root_vdev)) { |
2e528b49 | 627 | error = SET_ERROR(ENOTSUP); |
34dc7c2f BB |
628 | break; |
629 | } | |
630 | ||
631 | reset_bootfs = 1; | |
632 | ||
633 | error = nvpair_value_string(elem, &strval); | |
634 | ||
635 | if (!error) { | |
9ae529ec | 636 | objset_t *os; |
b128c09f | 637 | |
34dc7c2f BB |
638 | if (strval == NULL || strval[0] == '\0') { |
639 | objnum = zpool_prop_default_numeric( | |
640 | ZPOOL_PROP_BOOTFS); | |
641 | break; | |
642 | } | |
643 | ||
d1d7e268 | 644 | error = dmu_objset_hold(strval, FTAG, &os); |
619f0976 | 645 | if (error != 0) |
34dc7c2f | 646 | break; |
b128c09f | 647 | |
eaa25f1a | 648 | /* Must be ZPL. */ |
428870ff | 649 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
2e528b49 | 650 | error = SET_ERROR(ENOTSUP); |
b128c09f BB |
651 | } else { |
652 | objnum = dmu_objset_id(os); | |
653 | } | |
428870ff | 654 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
655 | } |
656 | break; | |
b128c09f | 657 | |
34dc7c2f BB |
658 | case ZPOOL_PROP_FAILUREMODE: |
659 | error = nvpair_value_uint64(elem, &intval); | |
3bfd95d5 | 660 | if (!error && intval > ZIO_FAILURE_MODE_PANIC) |
2e528b49 | 661 | error = SET_ERROR(EINVAL); |
34dc7c2f BB |
662 | |
663 | /* | |
664 | * This is a special case which only occurs when | |
665 | * the pool has completely failed. This allows | |
666 | * the user to change the in-core failmode property | |
667 | * without syncing it out to disk (I/Os might | |
668 | * currently be blocked). We do this by returning | |
669 | * EIO to the caller (spa_prop_set) to trick it | |
670 | * into thinking we encountered a property validation | |
671 | * error. | |
672 | */ | |
b128c09f | 673 | if (!error && spa_suspended(spa)) { |
34dc7c2f | 674 | spa->spa_failmode = intval; |
2e528b49 | 675 | error = SET_ERROR(EIO); |
34dc7c2f BB |
676 | } |
677 | break; | |
678 | ||
679 | case ZPOOL_PROP_CACHEFILE: | |
680 | if ((error = nvpair_value_string(elem, &strval)) != 0) | |
681 | break; | |
682 | ||
683 | if (strval[0] == '\0') | |
684 | break; | |
685 | ||
686 | if (strcmp(strval, "none") == 0) | |
687 | break; | |
688 | ||
689 | if (strval[0] != '/') { | |
2e528b49 | 690 | error = SET_ERROR(EINVAL); |
34dc7c2f BB |
691 | break; |
692 | } | |
693 | ||
694 | slash = strrchr(strval, '/'); | |
695 | ASSERT(slash != NULL); | |
696 | ||
697 | if (slash[1] == '\0' || strcmp(slash, "/.") == 0 || | |
698 | strcmp(slash, "/..") == 0) | |
2e528b49 | 699 | error = SET_ERROR(EINVAL); |
34dc7c2f | 700 | break; |
428870ff | 701 | |
d96eb2b1 DM |
702 | case ZPOOL_PROP_COMMENT: |
703 | if ((error = nvpair_value_string(elem, &strval)) != 0) | |
704 | break; | |
705 | for (check = strval; *check != '\0'; check++) { | |
706 | if (!isprint(*check)) { | |
2e528b49 | 707 | error = SET_ERROR(EINVAL); |
d96eb2b1 DM |
708 | break; |
709 | } | |
d96eb2b1 DM |
710 | } |
711 | if (strlen(strval) > ZPROP_MAX_COMMENT) | |
2e528b49 | 712 | error = SET_ERROR(E2BIG); |
d96eb2b1 DM |
713 | break; |
714 | ||
e75c13c3 BB |
715 | default: |
716 | break; | |
34dc7c2f BB |
717 | } |
718 | ||
719 | if (error) | |
720 | break; | |
721 | } | |
722 | ||
050d720c MA |
723 | (void) nvlist_remove_all(props, |
724 | zpool_prop_to_name(ZPOOL_PROP_DEDUPDITTO)); | |
725 | ||
34dc7c2f BB |
726 | if (!error && reset_bootfs) { |
727 | error = nvlist_remove(props, | |
728 | zpool_prop_to_name(ZPOOL_PROP_BOOTFS), DATA_TYPE_STRING); | |
729 | ||
730 | if (!error) { | |
731 | error = nvlist_add_uint64(props, | |
732 | zpool_prop_to_name(ZPOOL_PROP_BOOTFS), objnum); | |
733 | } | |
734 | } | |
735 | ||
736 | return (error); | |
737 | } | |
738 | ||
d164b209 BB |
739 | void |
740 | spa_configfile_set(spa_t *spa, nvlist_t *nvp, boolean_t need_sync) | |
741 | { | |
742 | char *cachefile; | |
743 | spa_config_dirent_t *dp; | |
744 | ||
745 | if (nvlist_lookup_string(nvp, zpool_prop_to_name(ZPOOL_PROP_CACHEFILE), | |
746 | &cachefile) != 0) | |
747 | return; | |
748 | ||
749 | dp = kmem_alloc(sizeof (spa_config_dirent_t), | |
79c76d5b | 750 | KM_SLEEP); |
d164b209 BB |
751 | |
752 | if (cachefile[0] == '\0') | |
753 | dp->scd_path = spa_strdup(spa_config_path); | |
754 | else if (strcmp(cachefile, "none") == 0) | |
755 | dp->scd_path = NULL; | |
756 | else | |
757 | dp->scd_path = spa_strdup(cachefile); | |
758 | ||
759 | list_insert_head(&spa->spa_config_list, dp); | |
760 | if (need_sync) | |
761 | spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE); | |
762 | } | |
763 | ||
34dc7c2f BB |
764 | int |
765 | spa_prop_set(spa_t *spa, nvlist_t *nvp) | |
766 | { | |
767 | int error; | |
9ae529ec | 768 | nvpair_t *elem = NULL; |
d164b209 | 769 | boolean_t need_sync = B_FALSE; |
34dc7c2f BB |
770 | |
771 | if ((error = spa_prop_validate(spa, nvp)) != 0) | |
772 | return (error); | |
773 | ||
d164b209 | 774 | while ((elem = nvlist_next_nvpair(nvp, elem)) != NULL) { |
9ae529ec | 775 | zpool_prop_t prop = zpool_name_to_prop(nvpair_name(elem)); |
d164b209 | 776 | |
572e2857 BB |
777 | if (prop == ZPOOL_PROP_CACHEFILE || |
778 | prop == ZPOOL_PROP_ALTROOT || | |
779 | prop == ZPOOL_PROP_READONLY) | |
d164b209 BB |
780 | continue; |
781 | ||
31864e3d | 782 | if (prop == ZPOOL_PROP_VERSION || prop == ZPOOL_PROP_INVAL) { |
9ae529ec CS |
783 | uint64_t ver; |
784 | ||
785 | if (prop == ZPOOL_PROP_VERSION) { | |
786 | VERIFY(nvpair_value_uint64(elem, &ver) == 0); | |
787 | } else { | |
788 | ASSERT(zpool_prop_feature(nvpair_name(elem))); | |
789 | ver = SPA_VERSION_FEATURES; | |
790 | need_sync = B_TRUE; | |
791 | } | |
792 | ||
793 | /* Save time if the version is already set. */ | |
794 | if (ver == spa_version(spa)) | |
795 | continue; | |
796 | ||
797 | /* | |
798 | * In addition to the pool directory object, we might | |
799 | * create the pool properties object, the features for | |
800 | * read object, the features for write object, or the | |
801 | * feature descriptions object. | |
802 | */ | |
13fe0198 | 803 | error = dsl_sync_task(spa->spa_name, NULL, |
3d45fdd6 MA |
804 | spa_sync_version, &ver, |
805 | 6, ZFS_SPACE_CHECK_RESERVED); | |
9ae529ec CS |
806 | if (error) |
807 | return (error); | |
808 | continue; | |
809 | } | |
810 | ||
d164b209 BB |
811 | need_sync = B_TRUE; |
812 | break; | |
813 | } | |
814 | ||
9ae529ec | 815 | if (need_sync) { |
13fe0198 | 816 | return (dsl_sync_task(spa->spa_name, NULL, spa_sync_props, |
3d45fdd6 | 817 | nvp, 6, ZFS_SPACE_CHECK_RESERVED)); |
9ae529ec CS |
818 | } |
819 | ||
820 | return (0); | |
34dc7c2f BB |
821 | } |
822 | ||
823 | /* | |
824 | * If the bootfs property value is dsobj, clear it. | |
825 | */ | |
826 | void | |
827 | spa_prop_clear_bootfs(spa_t *spa, uint64_t dsobj, dmu_tx_t *tx) | |
828 | { | |
829 | if (spa->spa_bootfs == dsobj && spa->spa_pool_props_object != 0) { | |
830 | VERIFY(zap_remove(spa->spa_meta_objset, | |
831 | spa->spa_pool_props_object, | |
832 | zpool_prop_to_name(ZPOOL_PROP_BOOTFS), tx) == 0); | |
833 | spa->spa_bootfs = 0; | |
834 | } | |
835 | } | |
836 | ||
3bc7e0fb GW |
837 | /*ARGSUSED*/ |
838 | static int | |
13fe0198 | 839 | spa_change_guid_check(void *arg, dmu_tx_t *tx) |
3bc7e0fb | 840 | { |
2a8ba608 | 841 | uint64_t *newguid __maybe_unused = arg; |
13fe0198 | 842 | spa_t *spa = dmu_tx_pool(tx)->dp_spa; |
3bc7e0fb GW |
843 | vdev_t *rvd = spa->spa_root_vdev; |
844 | uint64_t vdev_state; | |
3bc7e0fb | 845 | |
d2734cce SD |
846 | if (spa_feature_is_active(spa, SPA_FEATURE_POOL_CHECKPOINT)) { |
847 | int error = (spa_has_checkpoint(spa)) ? | |
848 | ZFS_ERR_CHECKPOINT_EXISTS : ZFS_ERR_DISCARDING_CHECKPOINT; | |
849 | return (SET_ERROR(error)); | |
850 | } | |
851 | ||
3bc7e0fb GW |
852 | spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); |
853 | vdev_state = rvd->vdev_state; | |
854 | spa_config_exit(spa, SCL_STATE, FTAG); | |
855 | ||
856 | if (vdev_state != VDEV_STATE_HEALTHY) | |
2e528b49 | 857 | return (SET_ERROR(ENXIO)); |
3bc7e0fb GW |
858 | |
859 | ASSERT3U(spa_guid(spa), !=, *newguid); | |
860 | ||
861 | return (0); | |
862 | } | |
863 | ||
864 | static void | |
13fe0198 | 865 | spa_change_guid_sync(void *arg, dmu_tx_t *tx) |
3bc7e0fb | 866 | { |
13fe0198 MA |
867 | uint64_t *newguid = arg; |
868 | spa_t *spa = dmu_tx_pool(tx)->dp_spa; | |
3bc7e0fb GW |
869 | uint64_t oldguid; |
870 | vdev_t *rvd = spa->spa_root_vdev; | |
871 | ||
872 | oldguid = spa_guid(spa); | |
873 | ||
874 | spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); | |
875 | rvd->vdev_guid = *newguid; | |
876 | rvd->vdev_guid_sum += (*newguid - oldguid); | |
877 | vdev_config_dirty(rvd); | |
878 | spa_config_exit(spa, SCL_STATE, FTAG); | |
879 | ||
6f1ffb06 | 880 | spa_history_log_internal(spa, "guid change", tx, "old=%llu new=%llu", |
74756182 | 881 | (u_longlong_t)oldguid, (u_longlong_t)*newguid); |
3bc7e0fb GW |
882 | } |
883 | ||
3541dc6d GA |
884 | /* |
885 | * Change the GUID for the pool. This is done so that we can later | |
886 | * re-import a pool built from a clone of our own vdevs. We will modify | |
887 | * the root vdev's guid, our own pool guid, and then mark all of our | |
888 | * vdevs dirty. Note that we must make sure that all our vdevs are | |
889 | * online when we do this, or else any vdevs that weren't present | |
890 | * would be orphaned from our pool. We are also going to issue a | |
891 | * sysevent to update any watchers. | |
892 | */ | |
893 | int | |
894 | spa_change_guid(spa_t *spa) | |
895 | { | |
3bc7e0fb GW |
896 | int error; |
897 | uint64_t guid; | |
3541dc6d | 898 | |
621dd7bb | 899 | mutex_enter(&spa->spa_vdev_top_lock); |
3bc7e0fb GW |
900 | mutex_enter(&spa_namespace_lock); |
901 | guid = spa_generate_guid(NULL); | |
3541dc6d | 902 | |
13fe0198 | 903 | error = dsl_sync_task(spa->spa_name, spa_change_guid_check, |
3d45fdd6 | 904 | spa_change_guid_sync, &guid, 5, ZFS_SPACE_CHECK_RESERVED); |
3541dc6d | 905 | |
3bc7e0fb | 906 | if (error == 0) { |
a1d477c2 | 907 | spa_write_cachefile(spa, B_FALSE, B_TRUE); |
12fa0466 | 908 | spa_event_notify(spa, NULL, NULL, ESC_ZFS_POOL_REGUID); |
3bc7e0fb | 909 | } |
3541dc6d | 910 | |
3bc7e0fb | 911 | mutex_exit(&spa_namespace_lock); |
621dd7bb | 912 | mutex_exit(&spa->spa_vdev_top_lock); |
3541dc6d | 913 | |
3bc7e0fb | 914 | return (error); |
3541dc6d GA |
915 | } |
916 | ||
34dc7c2f BB |
917 | /* |
918 | * ========================================================================== | |
919 | * SPA state manipulation (open/create/destroy/import/export) | |
920 | * ========================================================================== | |
921 | */ | |
922 | ||
923 | static int | |
924 | spa_error_entry_compare(const void *a, const void *b) | |
925 | { | |
ee36c709 GN |
926 | const spa_error_entry_t *sa = (const spa_error_entry_t *)a; |
927 | const spa_error_entry_t *sb = (const spa_error_entry_t *)b; | |
34dc7c2f BB |
928 | int ret; |
929 | ||
ee36c709 | 930 | ret = memcmp(&sa->se_bookmark, &sb->se_bookmark, |
5dbd68a3 | 931 | sizeof (zbookmark_phys_t)); |
34dc7c2f | 932 | |
ca577779 | 933 | return (TREE_ISIGN(ret)); |
34dc7c2f BB |
934 | } |
935 | ||
936 | /* | |
937 | * Utility function which retrieves copies of the current logs and | |
938 | * re-initializes them in the process. | |
939 | */ | |
940 | void | |
941 | spa_get_errlists(spa_t *spa, avl_tree_t *last, avl_tree_t *scrub) | |
942 | { | |
943 | ASSERT(MUTEX_HELD(&spa->spa_errlist_lock)); | |
944 | ||
945 | bcopy(&spa->spa_errlist_last, last, sizeof (avl_tree_t)); | |
946 | bcopy(&spa->spa_errlist_scrub, scrub, sizeof (avl_tree_t)); | |
947 | ||
948 | avl_create(&spa->spa_errlist_scrub, | |
949 | spa_error_entry_compare, sizeof (spa_error_entry_t), | |
950 | offsetof(spa_error_entry_t, se_avl)); | |
951 | avl_create(&spa->spa_errlist_last, | |
952 | spa_error_entry_compare, sizeof (spa_error_entry_t), | |
953 | offsetof(spa_error_entry_t, se_avl)); | |
954 | } | |
955 | ||
7ef5e54e AL |
956 | static void |
957 | spa_taskqs_init(spa_t *spa, zio_type_t t, zio_taskq_type_t q) | |
34dc7c2f | 958 | { |
7ef5e54e AL |
959 | const zio_taskq_info_t *ztip = &zio_taskqs[t][q]; |
960 | enum zti_modes mode = ztip->zti_mode; | |
961 | uint_t value = ztip->zti_value; | |
962 | uint_t count = ztip->zti_count; | |
963 | spa_taskqs_t *tqs = &spa->spa_zio_taskq[t][q]; | |
7457b024 | 964 | uint_t cpus, flags = TASKQ_DYNAMIC; |
428870ff | 965 | boolean_t batch = B_FALSE; |
34dc7c2f | 966 | |
e8b96c60 MA |
967 | switch (mode) { |
968 | case ZTI_MODE_FIXED: | |
7457b024 | 969 | ASSERT3U(value, >, 0); |
e8b96c60 | 970 | break; |
7ef5e54e | 971 | |
e8b96c60 MA |
972 | case ZTI_MODE_BATCH: |
973 | batch = B_TRUE; | |
974 | flags |= TASKQ_THREADS_CPU_PCT; | |
dcb6bed1 | 975 | value = MIN(zio_taskq_batch_pct, 100); |
e8b96c60 | 976 | break; |
7ef5e54e | 977 | |
7457b024 AM |
978 | case ZTI_MODE_SCALE: |
979 | flags |= TASKQ_THREADS_CPU_PCT; | |
980 | /* | |
981 | * We want more taskqs to reduce lock contention, but we want | |
982 | * less for better request ordering and CPU utilization. | |
983 | */ | |
984 | cpus = MAX(1, boot_ncpus * zio_taskq_batch_pct / 100); | |
985 | if (zio_taskq_batch_tpq > 0) { | |
986 | count = MAX(1, (cpus + zio_taskq_batch_tpq / 2) / | |
987 | zio_taskq_batch_tpq); | |
988 | } else { | |
989 | /* | |
990 | * Prefer 6 threads per taskq, but no more taskqs | |
991 | * than threads in them on large systems. For 80%: | |
992 | * | |
993 | * taskq taskq total | |
994 | * cpus taskqs percent threads threads | |
995 | * ------- ------- ------- ------- ------- | |
996 | * 1 1 80% 1 1 | |
997 | * 2 1 80% 1 1 | |
998 | * 4 1 80% 3 3 | |
999 | * 8 2 40% 3 6 | |
1000 | * 16 3 27% 4 12 | |
1001 | * 32 5 16% 5 25 | |
1002 | * 64 7 11% 7 49 | |
1003 | * 128 10 8% 10 100 | |
1004 | * 256 14 6% 15 210 | |
1005 | */ | |
1006 | count = 1 + cpus / 6; | |
1007 | while (count * count > cpus) | |
1008 | count--; | |
1009 | } | |
1010 | /* Limit each taskq within 100% to not trigger assertion. */ | |
1011 | count = MAX(count, (zio_taskq_batch_pct + 99) / 100); | |
1012 | value = (zio_taskq_batch_pct + count / 2) / count; | |
1013 | break; | |
1014 | ||
1015 | case ZTI_MODE_NULL: | |
1016 | tqs->stqs_count = 0; | |
1017 | tqs->stqs_taskq = NULL; | |
1018 | return; | |
1019 | ||
e8b96c60 MA |
1020 | default: |
1021 | panic("unrecognized mode for %s_%s taskq (%u:%u) in " | |
1022 | "spa_activate()", | |
1023 | zio_type_name[t], zio_taskq_types[q], mode, value); | |
1024 | break; | |
1025 | } | |
7ef5e54e | 1026 | |
7457b024 AM |
1027 | ASSERT3U(count, >, 0); |
1028 | tqs->stqs_count = count; | |
1029 | tqs->stqs_taskq = kmem_alloc(count * sizeof (taskq_t *), KM_SLEEP); | |
1030 | ||
1c27024e | 1031 | for (uint_t i = 0; i < count; i++) { |
e8b96c60 | 1032 | taskq_t *tq; |
af430294 | 1033 | char name[32]; |
7ef5e54e | 1034 | |
7457b024 AM |
1035 | if (count > 1) |
1036 | (void) snprintf(name, sizeof (name), "%s_%s_%u", | |
1037 | zio_type_name[t], zio_taskq_types[q], i); | |
1038 | else | |
1039 | (void) snprintf(name, sizeof (name), "%s_%s", | |
1040 | zio_type_name[t], zio_taskq_types[q]); | |
7ef5e54e AL |
1041 | |
1042 | if (zio_taskq_sysdc && spa->spa_proc != &p0) { | |
1043 | if (batch) | |
1044 | flags |= TASKQ_DC_BATCH; | |
1045 | ||
1046 | tq = taskq_create_sysdc(name, value, 50, INT_MAX, | |
1047 | spa->spa_proc, zio_taskq_basedc, flags); | |
1048 | } else { | |
e8b96c60 MA |
1049 | pri_t pri = maxclsyspri; |
1050 | /* | |
1051 | * The write issue taskq can be extremely CPU | |
1229323d | 1052 | * intensive. Run it at slightly less important |
7432d297 MM |
1053 | * priority than the other taskqs. |
1054 | * | |
1055 | * Under Linux and FreeBSD this means incrementing | |
1056 | * the priority value as opposed to platforms like | |
1057 | * illumos where it should be decremented. | |
1058 | * | |
1059 | * On FreeBSD, if priorities divided by four (RQ_PPQ) | |
1060 | * are equal then a difference between them is | |
1061 | * insignificant. | |
e8b96c60 | 1062 | */ |
7432d297 MM |
1063 | if (t == ZIO_TYPE_WRITE && q == ZIO_TASKQ_ISSUE) { |
1064 | #if defined(__linux__) | |
1229323d | 1065 | pri++; |
7432d297 MM |
1066 | #elif defined(__FreeBSD__) |
1067 | pri += 4; | |
1068 | #else | |
1069 | #error "unknown OS" | |
1070 | #endif | |
1071 | } | |
e8b96c60 | 1072 | tq = taskq_create_proc(name, value, pri, 50, |
7ef5e54e AL |
1073 | INT_MAX, spa->spa_proc, flags); |
1074 | } | |
1075 | ||
1076 | tqs->stqs_taskq[i] = tq; | |
1077 | } | |
1078 | } | |
1079 | ||
1080 | static void | |
1081 | spa_taskqs_fini(spa_t *spa, zio_type_t t, zio_taskq_type_t q) | |
1082 | { | |
1083 | spa_taskqs_t *tqs = &spa->spa_zio_taskq[t][q]; | |
7ef5e54e AL |
1084 | |
1085 | if (tqs->stqs_taskq == NULL) { | |
1086 | ASSERT3U(tqs->stqs_count, ==, 0); | |
1087 | return; | |
1088 | } | |
1089 | ||
1c27024e | 1090 | for (uint_t i = 0; i < tqs->stqs_count; i++) { |
7ef5e54e AL |
1091 | ASSERT3P(tqs->stqs_taskq[i], !=, NULL); |
1092 | taskq_destroy(tqs->stqs_taskq[i]); | |
428870ff | 1093 | } |
34dc7c2f | 1094 | |
7ef5e54e AL |
1095 | kmem_free(tqs->stqs_taskq, tqs->stqs_count * sizeof (taskq_t *)); |
1096 | tqs->stqs_taskq = NULL; | |
1097 | } | |
34dc7c2f | 1098 | |
7ef5e54e AL |
1099 | /* |
1100 | * Dispatch a task to the appropriate taskq for the ZFS I/O type and priority. | |
1101 | * Note that a type may have multiple discrete taskqs to avoid lock contention | |
1102 | * on the taskq itself. In that case we choose which taskq at random by using | |
1103 | * the low bits of gethrtime(). | |
1104 | */ | |
1105 | void | |
1106 | spa_taskq_dispatch_ent(spa_t *spa, zio_type_t t, zio_taskq_type_t q, | |
1107 | task_func_t *func, void *arg, uint_t flags, taskq_ent_t *ent) | |
1108 | { | |
1109 | spa_taskqs_t *tqs = &spa->spa_zio_taskq[t][q]; | |
1110 | taskq_t *tq; | |
1111 | ||
1112 | ASSERT3P(tqs->stqs_taskq, !=, NULL); | |
1113 | ASSERT3U(tqs->stqs_count, !=, 0); | |
1114 | ||
1115 | if (tqs->stqs_count == 1) { | |
1116 | tq = tqs->stqs_taskq[0]; | |
1117 | } else { | |
c12936b1 | 1118 | tq = tqs->stqs_taskq[((uint64_t)gethrtime()) % tqs->stqs_count]; |
428870ff | 1119 | } |
7ef5e54e AL |
1120 | |
1121 | taskq_dispatch_ent(tq, func, arg, flags, ent); | |
428870ff BB |
1122 | } |
1123 | ||
044baf00 BB |
1124 | /* |
1125 | * Same as spa_taskq_dispatch_ent() but block on the task until completion. | |
1126 | */ | |
1127 | void | |
1128 | spa_taskq_dispatch_sync(spa_t *spa, zio_type_t t, zio_taskq_type_t q, | |
1129 | task_func_t *func, void *arg, uint_t flags) | |
1130 | { | |
1131 | spa_taskqs_t *tqs = &spa->spa_zio_taskq[t][q]; | |
1132 | taskq_t *tq; | |
1133 | taskqid_t id; | |
1134 | ||
1135 | ASSERT3P(tqs->stqs_taskq, !=, NULL); | |
1136 | ASSERT3U(tqs->stqs_count, !=, 0); | |
1137 | ||
1138 | if (tqs->stqs_count == 1) { | |
1139 | tq = tqs->stqs_taskq[0]; | |
1140 | } else { | |
c12936b1 | 1141 | tq = tqs->stqs_taskq[((uint64_t)gethrtime()) % tqs->stqs_count]; |
044baf00 BB |
1142 | } |
1143 | ||
1144 | id = taskq_dispatch(tq, func, arg, flags); | |
1145 | if (id) | |
1146 | taskq_wait_id(tq, id); | |
1147 | } | |
1148 | ||
428870ff BB |
1149 | static void |
1150 | spa_create_zio_taskqs(spa_t *spa) | |
1151 | { | |
1c27024e DB |
1152 | for (int t = 0; t < ZIO_TYPES; t++) { |
1153 | for (int q = 0; q < ZIO_TASKQ_TYPES; q++) { | |
7ef5e54e | 1154 | spa_taskqs_init(spa, t, q); |
428870ff BB |
1155 | } |
1156 | } | |
1157 | } | |
9babb374 | 1158 | |
c25b8f99 BB |
1159 | /* |
1160 | * Disabled until spa_thread() can be adapted for Linux. | |
1161 | */ | |
1162 | #undef HAVE_SPA_THREAD | |
1163 | ||
7b89a549 | 1164 | #if defined(_KERNEL) && defined(HAVE_SPA_THREAD) |
428870ff BB |
1165 | static void |
1166 | spa_thread(void *arg) | |
1167 | { | |
93ce2b4c | 1168 | psetid_t zio_taskq_psrset_bind = PS_NONE; |
428870ff | 1169 | callb_cpr_t cprinfo; |
9babb374 | 1170 | |
428870ff BB |
1171 | spa_t *spa = arg; |
1172 | user_t *pu = PTOU(curproc); | |
9babb374 | 1173 | |
428870ff BB |
1174 | CALLB_CPR_INIT(&cprinfo, &spa->spa_proc_lock, callb_generic_cpr, |
1175 | spa->spa_name); | |
9babb374 | 1176 | |
428870ff BB |
1177 | ASSERT(curproc != &p0); |
1178 | (void) snprintf(pu->u_psargs, sizeof (pu->u_psargs), | |
1179 | "zpool-%s", spa->spa_name); | |
1180 | (void) strlcpy(pu->u_comm, pu->u_psargs, sizeof (pu->u_comm)); | |
1181 | ||
1182 | /* bind this thread to the requested psrset */ | |
1183 | if (zio_taskq_psrset_bind != PS_NONE) { | |
1184 | pool_lock(); | |
1185 | mutex_enter(&cpu_lock); | |
1186 | mutex_enter(&pidlock); | |
1187 | mutex_enter(&curproc->p_lock); | |
1188 | ||
1189 | if (cpupart_bind_thread(curthread, zio_taskq_psrset_bind, | |
1190 | 0, NULL, NULL) == 0) { | |
1191 | curthread->t_bind_pset = zio_taskq_psrset_bind; | |
1192 | } else { | |
1193 | cmn_err(CE_WARN, | |
1194 | "Couldn't bind process for zfs pool \"%s\" to " | |
1195 | "pset %d\n", spa->spa_name, zio_taskq_psrset_bind); | |
1196 | } | |
1197 | ||
1198 | mutex_exit(&curproc->p_lock); | |
1199 | mutex_exit(&pidlock); | |
1200 | mutex_exit(&cpu_lock); | |
1201 | pool_unlock(); | |
1202 | } | |
1203 | ||
1204 | if (zio_taskq_sysdc) { | |
1205 | sysdc_thread_enter(curthread, 100, 0); | |
1206 | } | |
1207 | ||
1208 | spa->spa_proc = curproc; | |
1209 | spa->spa_did = curthread->t_did; | |
1210 | ||
1211 | spa_create_zio_taskqs(spa); | |
1212 | ||
1213 | mutex_enter(&spa->spa_proc_lock); | |
1214 | ASSERT(spa->spa_proc_state == SPA_PROC_CREATED); | |
1215 | ||
1216 | spa->spa_proc_state = SPA_PROC_ACTIVE; | |
1217 | cv_broadcast(&spa->spa_proc_cv); | |
1218 | ||
1219 | CALLB_CPR_SAFE_BEGIN(&cprinfo); | |
1220 | while (spa->spa_proc_state == SPA_PROC_ACTIVE) | |
1221 | cv_wait(&spa->spa_proc_cv, &spa->spa_proc_lock); | |
1222 | CALLB_CPR_SAFE_END(&cprinfo, &spa->spa_proc_lock); | |
1223 | ||
1224 | ASSERT(spa->spa_proc_state == SPA_PROC_DEACTIVATE); | |
1225 | spa->spa_proc_state = SPA_PROC_GONE; | |
1226 | spa->spa_proc = &p0; | |
1227 | cv_broadcast(&spa->spa_proc_cv); | |
1228 | CALLB_CPR_EXIT(&cprinfo); /* drops spa_proc_lock */ | |
1229 | ||
1230 | mutex_enter(&curproc->p_lock); | |
1231 | lwp_exit(); | |
1232 | } | |
1233 | #endif | |
1234 | ||
1235 | /* | |
1236 | * Activate an uninitialized pool. | |
1237 | */ | |
1238 | static void | |
da92d5cb | 1239 | spa_activate(spa_t *spa, spa_mode_t mode) |
428870ff BB |
1240 | { |
1241 | ASSERT(spa->spa_state == POOL_STATE_UNINITIALIZED); | |
1242 | ||
1243 | spa->spa_state = POOL_STATE_ACTIVE; | |
1244 | spa->spa_mode = mode; | |
1245 | ||
1246 | spa->spa_normal_class = metaslab_class_create(spa, zfs_metaslab_ops); | |
1247 | spa->spa_log_class = metaslab_class_create(spa, zfs_metaslab_ops); | |
aa755b35 MA |
1248 | spa->spa_embedded_log_class = |
1249 | metaslab_class_create(spa, zfs_metaslab_ops); | |
cc99f275 DB |
1250 | spa->spa_special_class = metaslab_class_create(spa, zfs_metaslab_ops); |
1251 | spa->spa_dedup_class = metaslab_class_create(spa, zfs_metaslab_ops); | |
428870ff BB |
1252 | |
1253 | /* Try to create a covering process */ | |
1254 | mutex_enter(&spa->spa_proc_lock); | |
1255 | ASSERT(spa->spa_proc_state == SPA_PROC_NONE); | |
1256 | ASSERT(spa->spa_proc == &p0); | |
1257 | spa->spa_did = 0; | |
1258 | ||
7b89a549 | 1259 | #ifdef HAVE_SPA_THREAD |
428870ff BB |
1260 | /* Only create a process if we're going to be around a while. */ |
1261 | if (spa_create_process && strcmp(spa->spa_name, TRYIMPORT_NAME) != 0) { | |
1262 | if (newproc(spa_thread, (caddr_t)spa, syscid, maxclsyspri, | |
1263 | NULL, 0) == 0) { | |
1264 | spa->spa_proc_state = SPA_PROC_CREATED; | |
1265 | while (spa->spa_proc_state == SPA_PROC_CREATED) { | |
1266 | cv_wait(&spa->spa_proc_cv, | |
1267 | &spa->spa_proc_lock); | |
9babb374 | 1268 | } |
428870ff BB |
1269 | ASSERT(spa->spa_proc_state == SPA_PROC_ACTIVE); |
1270 | ASSERT(spa->spa_proc != &p0); | |
1271 | ASSERT(spa->spa_did != 0); | |
1272 | } else { | |
1273 | #ifdef _KERNEL | |
1274 | cmn_err(CE_WARN, | |
1275 | "Couldn't create process for zfs pool \"%s\"\n", | |
1276 | spa->spa_name); | |
1277 | #endif | |
b128c09f | 1278 | } |
34dc7c2f | 1279 | } |
7b89a549 | 1280 | #endif /* HAVE_SPA_THREAD */ |
428870ff BB |
1281 | mutex_exit(&spa->spa_proc_lock); |
1282 | ||
1283 | /* If we didn't create a process, we need to create our taskqs. */ | |
1284 | if (spa->spa_proc == &p0) { | |
1285 | spa_create_zio_taskqs(spa); | |
1286 | } | |
34dc7c2f | 1287 | |
619f0976 GW |
1288 | for (size_t i = 0; i < TXG_SIZE; i++) { |
1289 | spa->spa_txg_zio[i] = zio_root(spa, NULL, NULL, | |
1290 | ZIO_FLAG_CANFAIL); | |
1291 | } | |
a1d477c2 | 1292 | |
b128c09f BB |
1293 | list_create(&spa->spa_config_dirty_list, sizeof (vdev_t), |
1294 | offsetof(vdev_t, vdev_config_dirty_node)); | |
0c66c32d JG |
1295 | list_create(&spa->spa_evicting_os_list, sizeof (objset_t), |
1296 | offsetof(objset_t, os_evicting_node)); | |
b128c09f BB |
1297 | list_create(&spa->spa_state_dirty_list, sizeof (vdev_t), |
1298 | offsetof(vdev_t, vdev_state_dirty_node)); | |
34dc7c2f | 1299 | |
4747a7d3 | 1300 | txg_list_create(&spa->spa_vdev_txg_list, spa, |
34dc7c2f BB |
1301 | offsetof(struct vdev, vdev_txg_node)); |
1302 | ||
1303 | avl_create(&spa->spa_errlist_scrub, | |
1304 | spa_error_entry_compare, sizeof (spa_error_entry_t), | |
1305 | offsetof(spa_error_entry_t, se_avl)); | |
1306 | avl_create(&spa->spa_errlist_last, | |
1307 | spa_error_entry_compare, sizeof (spa_error_entry_t), | |
1308 | offsetof(spa_error_entry_t, se_avl)); | |
a0bd735a | 1309 | |
b5256303 TC |
1310 | spa_keystore_init(&spa->spa_keystore); |
1311 | ||
a0bd735a BP |
1312 | /* |
1313 | * This taskq is used to perform zvol-minor-related tasks | |
1314 | * asynchronously. This has several advantages, including easy | |
d0249a4b | 1315 | * resolution of various deadlocks. |
a0bd735a BP |
1316 | * |
1317 | * The taskq must be single threaded to ensure tasks are always | |
1318 | * processed in the order in which they were dispatched. | |
1319 | * | |
1320 | * A taskq per pool allows one to keep the pools independent. | |
1321 | * This way if one pool is suspended, it will not impact another. | |
1322 | * | |
1323 | * The preferred location to dispatch a zvol minor task is a sync | |
1324 | * task. In this context, there is easy access to the spa_t and minimal | |
1325 | * error handling is required because the sync task must succeed. | |
1326 | */ | |
1327 | spa->spa_zvol_taskq = taskq_create("z_zvol", 1, defclsyspri, | |
1328 | 1, INT_MAX, 0); | |
1de321e6 | 1329 | |
77d8a0f1 | 1330 | /* |
1331 | * Taskq dedicated to prefetcher threads: this is used to prevent the | |
1332 | * pool traverse code from monopolizing the global (and limited) | |
1333 | * system_taskq by inappropriately scheduling long running tasks on it. | |
1334 | */ | |
60a4c7d2 PD |
1335 | spa->spa_prefetch_taskq = taskq_create("z_prefetch", 100, |
1336 | defclsyspri, 1, INT_MAX, TASKQ_DYNAMIC | TASKQ_THREADS_CPU_PCT); | |
77d8a0f1 | 1337 | |
1de321e6 JX |
1338 | /* |
1339 | * The taskq to upgrade datasets in this pool. Currently used by | |
9c5167d1 | 1340 | * feature SPA_FEATURE_USEROBJ_ACCOUNTING/SPA_FEATURE_PROJECT_QUOTA. |
1de321e6 | 1341 | */ |
60a4c7d2 PD |
1342 | spa->spa_upgrade_taskq = taskq_create("z_upgrade", 100, |
1343 | defclsyspri, 1, INT_MAX, TASKQ_DYNAMIC | TASKQ_THREADS_CPU_PCT); | |
34dc7c2f BB |
1344 | } |
1345 | ||
1346 | /* | |
1347 | * Opposite of spa_activate(). | |
1348 | */ | |
1349 | static void | |
1350 | spa_deactivate(spa_t *spa) | |
1351 | { | |
34dc7c2f BB |
1352 | ASSERT(spa->spa_sync_on == B_FALSE); |
1353 | ASSERT(spa->spa_dsl_pool == NULL); | |
1354 | ASSERT(spa->spa_root_vdev == NULL); | |
9babb374 | 1355 | ASSERT(spa->spa_async_zio_root == NULL); |
34dc7c2f BB |
1356 | ASSERT(spa->spa_state != POOL_STATE_UNINITIALIZED); |
1357 | ||
0c66c32d JG |
1358 | spa_evicting_os_wait(spa); |
1359 | ||
a0bd735a BP |
1360 | if (spa->spa_zvol_taskq) { |
1361 | taskq_destroy(spa->spa_zvol_taskq); | |
1362 | spa->spa_zvol_taskq = NULL; | |
1363 | } | |
1364 | ||
77d8a0f1 | 1365 | if (spa->spa_prefetch_taskq) { |
1366 | taskq_destroy(spa->spa_prefetch_taskq); | |
1367 | spa->spa_prefetch_taskq = NULL; | |
1368 | } | |
1369 | ||
1de321e6 JX |
1370 | if (spa->spa_upgrade_taskq) { |
1371 | taskq_destroy(spa->spa_upgrade_taskq); | |
1372 | spa->spa_upgrade_taskq = NULL; | |
1373 | } | |
1374 | ||
34dc7c2f BB |
1375 | txg_list_destroy(&spa->spa_vdev_txg_list); |
1376 | ||
b128c09f | 1377 | list_destroy(&spa->spa_config_dirty_list); |
0c66c32d | 1378 | list_destroy(&spa->spa_evicting_os_list); |
b128c09f | 1379 | list_destroy(&spa->spa_state_dirty_list); |
34dc7c2f | 1380 | |
57ddcda1 | 1381 | taskq_cancel_id(system_delay_taskq, spa->spa_deadman_tqid); |
cc92e9d0 | 1382 | |
1c27024e DB |
1383 | for (int t = 0; t < ZIO_TYPES; t++) { |
1384 | for (int q = 0; q < ZIO_TASKQ_TYPES; q++) { | |
7ef5e54e | 1385 | spa_taskqs_fini(spa, t, q); |
b128c09f | 1386 | } |
34dc7c2f BB |
1387 | } |
1388 | ||
a1d477c2 MA |
1389 | for (size_t i = 0; i < TXG_SIZE; i++) { |
1390 | ASSERT3P(spa->spa_txg_zio[i], !=, NULL); | |
1391 | VERIFY0(zio_wait(spa->spa_txg_zio[i])); | |
1392 | spa->spa_txg_zio[i] = NULL; | |
1393 | } | |
1394 | ||
34dc7c2f BB |
1395 | metaslab_class_destroy(spa->spa_normal_class); |
1396 | spa->spa_normal_class = NULL; | |
1397 | ||
1398 | metaslab_class_destroy(spa->spa_log_class); | |
1399 | spa->spa_log_class = NULL; | |
1400 | ||
aa755b35 MA |
1401 | metaslab_class_destroy(spa->spa_embedded_log_class); |
1402 | spa->spa_embedded_log_class = NULL; | |
1403 | ||
cc99f275 DB |
1404 | metaslab_class_destroy(spa->spa_special_class); |
1405 | spa->spa_special_class = NULL; | |
1406 | ||
1407 | metaslab_class_destroy(spa->spa_dedup_class); | |
1408 | spa->spa_dedup_class = NULL; | |
1409 | ||
34dc7c2f BB |
1410 | /* |
1411 | * If this was part of an import or the open otherwise failed, we may | |
1412 | * still have errors left in the queues. Empty them just in case. | |
1413 | */ | |
1414 | spa_errlog_drain(spa); | |
34dc7c2f BB |
1415 | avl_destroy(&spa->spa_errlist_scrub); |
1416 | avl_destroy(&spa->spa_errlist_last); | |
1417 | ||
b5256303 TC |
1418 | spa_keystore_fini(&spa->spa_keystore); |
1419 | ||
34dc7c2f | 1420 | spa->spa_state = POOL_STATE_UNINITIALIZED; |
428870ff BB |
1421 | |
1422 | mutex_enter(&spa->spa_proc_lock); | |
1423 | if (spa->spa_proc_state != SPA_PROC_NONE) { | |
1424 | ASSERT(spa->spa_proc_state == SPA_PROC_ACTIVE); | |
1425 | spa->spa_proc_state = SPA_PROC_DEACTIVATE; | |
1426 | cv_broadcast(&spa->spa_proc_cv); | |
1427 | while (spa->spa_proc_state == SPA_PROC_DEACTIVATE) { | |
1428 | ASSERT(spa->spa_proc != &p0); | |
1429 | cv_wait(&spa->spa_proc_cv, &spa->spa_proc_lock); | |
1430 | } | |
1431 | ASSERT(spa->spa_proc_state == SPA_PROC_GONE); | |
1432 | spa->spa_proc_state = SPA_PROC_NONE; | |
1433 | } | |
1434 | ASSERT(spa->spa_proc == &p0); | |
1435 | mutex_exit(&spa->spa_proc_lock); | |
1436 | ||
1437 | /* | |
1438 | * We want to make sure spa_thread() has actually exited the ZFS | |
1439 | * module, so that the module can't be unloaded out from underneath | |
1440 | * it. | |
1441 | */ | |
1442 | if (spa->spa_did != 0) { | |
1443 | thread_join(spa->spa_did); | |
1444 | spa->spa_did = 0; | |
1445 | } | |
34dc7c2f BB |
1446 | } |
1447 | ||
1448 | /* | |
1449 | * Verify a pool configuration, and construct the vdev tree appropriately. This | |
1450 | * will create all the necessary vdevs in the appropriate layout, with each vdev | |
1451 | * in the CLOSED state. This will prep the pool before open/creation/import. | |
1452 | * All vdev validation is done by the vdev_alloc() routine. | |
1453 | */ | |
4a22ba5b | 1454 | int |
34dc7c2f BB |
1455 | spa_config_parse(spa_t *spa, vdev_t **vdp, nvlist_t *nv, vdev_t *parent, |
1456 | uint_t id, int atype) | |
1457 | { | |
1458 | nvlist_t **child; | |
9babb374 | 1459 | uint_t children; |
34dc7c2f BB |
1460 | int error; |
1461 | ||
1462 | if ((error = vdev_alloc(spa, vdp, nv, parent, id, atype)) != 0) | |
1463 | return (error); | |
1464 | ||
1465 | if ((*vdp)->vdev_ops->vdev_op_leaf) | |
1466 | return (0); | |
1467 | ||
b128c09f BB |
1468 | error = nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, |
1469 | &child, &children); | |
1470 | ||
1471 | if (error == ENOENT) | |
1472 | return (0); | |
1473 | ||
1474 | if (error) { | |
34dc7c2f BB |
1475 | vdev_free(*vdp); |
1476 | *vdp = NULL; | |
2e528b49 | 1477 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1478 | } |
1479 | ||
1c27024e | 1480 | for (int c = 0; c < children; c++) { |
34dc7c2f BB |
1481 | vdev_t *vd; |
1482 | if ((error = spa_config_parse(spa, &vd, child[c], *vdp, c, | |
1483 | atype)) != 0) { | |
1484 | vdev_free(*vdp); | |
1485 | *vdp = NULL; | |
1486 | return (error); | |
1487 | } | |
1488 | } | |
1489 | ||
1490 | ASSERT(*vdp != NULL); | |
1491 | ||
1492 | return (0); | |
1493 | } | |
1494 | ||
93e28d66 SD |
1495 | static boolean_t |
1496 | spa_should_flush_logs_on_unload(spa_t *spa) | |
1497 | { | |
1498 | if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) | |
1499 | return (B_FALSE); | |
1500 | ||
1501 | if (!spa_writeable(spa)) | |
1502 | return (B_FALSE); | |
1503 | ||
1504 | if (!spa->spa_sync_on) | |
1505 | return (B_FALSE); | |
1506 | ||
1507 | if (spa_state(spa) != POOL_STATE_EXPORTED) | |
1508 | return (B_FALSE); | |
1509 | ||
1510 | if (zfs_keep_log_spacemaps_at_export) | |
1511 | return (B_FALSE); | |
1512 | ||
1513 | return (B_TRUE); | |
1514 | } | |
1515 | ||
1516 | /* | |
1517 | * Opens a transaction that will set the flag that will instruct | |
1518 | * spa_sync to attempt to flush all the metaslabs for that txg. | |
1519 | */ | |
1520 | static void | |
1521 | spa_unload_log_sm_flush_all(spa_t *spa) | |
1522 | { | |
1523 | dmu_tx_t *tx = dmu_tx_create_dd(spa_get_dsl(spa)->dp_mos_dir); | |
1524 | VERIFY0(dmu_tx_assign(tx, TXG_WAIT)); | |
1525 | ||
1526 | ASSERT3U(spa->spa_log_flushall_txg, ==, 0); | |
1527 | spa->spa_log_flushall_txg = dmu_tx_get_txg(tx); | |
1528 | ||
1529 | dmu_tx_commit(tx); | |
1530 | txg_wait_synced(spa_get_dsl(spa), spa->spa_log_flushall_txg); | |
1531 | } | |
1532 | ||
1533 | static void | |
1534 | spa_unload_log_sm_metadata(spa_t *spa) | |
1535 | { | |
1536 | void *cookie = NULL; | |
1537 | spa_log_sm_t *sls; | |
1538 | while ((sls = avl_destroy_nodes(&spa->spa_sm_logs_by_txg, | |
1539 | &cookie)) != NULL) { | |
1540 | VERIFY0(sls->sls_mscount); | |
1541 | kmem_free(sls, sizeof (spa_log_sm_t)); | |
1542 | } | |
1543 | ||
1544 | for (log_summary_entry_t *e = list_head(&spa->spa_log_summary); | |
1545 | e != NULL; e = list_head(&spa->spa_log_summary)) { | |
1546 | VERIFY0(e->lse_mscount); | |
1547 | list_remove(&spa->spa_log_summary, e); | |
1548 | kmem_free(e, sizeof (log_summary_entry_t)); | |
1549 | } | |
1550 | ||
1551 | spa->spa_unflushed_stats.sus_nblocks = 0; | |
1552 | spa->spa_unflushed_stats.sus_memused = 0; | |
1553 | spa->spa_unflushed_stats.sus_blocklimit = 0; | |
1554 | } | |
1555 | ||
37f03da8 SH |
1556 | static void |
1557 | spa_destroy_aux_threads(spa_t *spa) | |
1558 | { | |
1559 | if (spa->spa_condense_zthr != NULL) { | |
1560 | zthr_destroy(spa->spa_condense_zthr); | |
1561 | spa->spa_condense_zthr = NULL; | |
1562 | } | |
1563 | if (spa->spa_checkpoint_discard_zthr != NULL) { | |
1564 | zthr_destroy(spa->spa_checkpoint_discard_zthr); | |
1565 | spa->spa_checkpoint_discard_zthr = NULL; | |
1566 | } | |
1567 | if (spa->spa_livelist_delete_zthr != NULL) { | |
1568 | zthr_destroy(spa->spa_livelist_delete_zthr); | |
1569 | spa->spa_livelist_delete_zthr = NULL; | |
1570 | } | |
1571 | if (spa->spa_livelist_condense_zthr != NULL) { | |
1572 | zthr_destroy(spa->spa_livelist_condense_zthr); | |
1573 | spa->spa_livelist_condense_zthr = NULL; | |
1574 | } | |
1575 | } | |
1576 | ||
34dc7c2f BB |
1577 | /* |
1578 | * Opposite of spa_load(). | |
1579 | */ | |
1580 | static void | |
1581 | spa_unload(spa_t *spa) | |
1582 | { | |
b128c09f | 1583 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); |
93e28d66 | 1584 | ASSERT(spa_state(spa) != POOL_STATE_UNINITIALIZED); |
b128c09f | 1585 | |
ca95f70d | 1586 | spa_import_progress_remove(spa_guid(spa)); |
4a0ee12a PZ |
1587 | spa_load_note(spa, "UNLOADING"); |
1588 | ||
e60e158e JG |
1589 | spa_wake_waiters(spa); |
1590 | ||
93e28d66 SD |
1591 | /* |
1592 | * If the log space map feature is enabled and the pool is getting | |
1593 | * exported (but not destroyed), we want to spend some time flushing | |
1594 | * as many metaslabs as we can in an attempt to destroy log space | |
1595 | * maps and save import time. | |
1596 | */ | |
1597 | if (spa_should_flush_logs_on_unload(spa)) | |
1598 | spa_unload_log_sm_flush_all(spa); | |
1599 | ||
34dc7c2f BB |
1600 | /* |
1601 | * Stop async tasks. | |
1602 | */ | |
1603 | spa_async_suspend(spa); | |
1604 | ||
619f0976 | 1605 | if (spa->spa_root_vdev) { |
1b939560 BB |
1606 | vdev_t *root_vdev = spa->spa_root_vdev; |
1607 | vdev_initialize_stop_all(root_vdev, VDEV_INITIALIZE_ACTIVE); | |
1608 | vdev_trim_stop_all(root_vdev, VDEV_TRIM_ACTIVE); | |
1609 | vdev_autotrim_stop_all(spa); | |
9a49d3f3 | 1610 | vdev_rebuild_stop_all(spa); |
619f0976 GW |
1611 | } |
1612 | ||
34dc7c2f BB |
1613 | /* |
1614 | * Stop syncing. | |
1615 | */ | |
1616 | if (spa->spa_sync_on) { | |
1617 | txg_sync_stop(spa->spa_dsl_pool); | |
1618 | spa->spa_sync_on = B_FALSE; | |
1619 | } | |
1620 | ||
4e21fd06 | 1621 | /* |
93e28d66 SD |
1622 | * This ensures that there is no async metaslab prefetching |
1623 | * while we attempt to unload the spa. | |
4e21fd06 DB |
1624 | */ |
1625 | if (spa->spa_root_vdev != NULL) { | |
93e28d66 SD |
1626 | for (int c = 0; c < spa->spa_root_vdev->vdev_children; c++) { |
1627 | vdev_t *vc = spa->spa_root_vdev->vdev_child[c]; | |
1628 | if (vc->vdev_mg != NULL) | |
1629 | taskq_wait(vc->vdev_mg->mg_taskq); | |
1630 | } | |
4e21fd06 DB |
1631 | } |
1632 | ||
379ca9cf OF |
1633 | if (spa->spa_mmp.mmp_thread) |
1634 | mmp_thread_stop(spa); | |
1635 | ||
34dc7c2f | 1636 | /* |
b128c09f | 1637 | * Wait for any outstanding async I/O to complete. |
34dc7c2f | 1638 | */ |
9babb374 | 1639 | if (spa->spa_async_zio_root != NULL) { |
1c27024e | 1640 | for (int i = 0; i < max_ncpus; i++) |
e022864d MA |
1641 | (void) zio_wait(spa->spa_async_zio_root[i]); |
1642 | kmem_free(spa->spa_async_zio_root, max_ncpus * sizeof (void *)); | |
9babb374 BB |
1643 | spa->spa_async_zio_root = NULL; |
1644 | } | |
34dc7c2f | 1645 | |
a1d477c2 MA |
1646 | if (spa->spa_vdev_removal != NULL) { |
1647 | spa_vdev_removal_destroy(spa->spa_vdev_removal); | |
1648 | spa->spa_vdev_removal = NULL; | |
1649 | } | |
1650 | ||
37f03da8 | 1651 | spa_destroy_aux_threads(spa); |
d2734cce | 1652 | |
a1d477c2 MA |
1653 | spa_condense_fini(spa); |
1654 | ||
428870ff BB |
1655 | bpobj_close(&spa->spa_deferred_bpobj); |
1656 | ||
619f0976 | 1657 | spa_config_enter(spa, SCL_ALL, spa, RW_WRITER); |
93cf2076 GW |
1658 | |
1659 | /* | |
1660 | * Close all vdevs. | |
1661 | */ | |
1662 | if (spa->spa_root_vdev) | |
1663 | vdev_free(spa->spa_root_vdev); | |
1664 | ASSERT(spa->spa_root_vdev == NULL); | |
1665 | ||
34dc7c2f BB |
1666 | /* |
1667 | * Close the dsl pool. | |
1668 | */ | |
1669 | if (spa->spa_dsl_pool) { | |
1670 | dsl_pool_close(spa->spa_dsl_pool); | |
1671 | spa->spa_dsl_pool = NULL; | |
428870ff | 1672 | spa->spa_meta_objset = NULL; |
34dc7c2f BB |
1673 | } |
1674 | ||
428870ff | 1675 | ddt_unload(spa); |
93e28d66 | 1676 | spa_unload_log_sm_metadata(spa); |
428870ff | 1677 | |
fb5f0bc8 BB |
1678 | /* |
1679 | * Drop and purge level 2 cache | |
1680 | */ | |
1681 | spa_l2cache_drop(spa); | |
1682 | ||
93e28d66 | 1683 | for (int i = 0; i < spa->spa_spares.sav_count; i++) |
34dc7c2f BB |
1684 | vdev_free(spa->spa_spares.sav_vdevs[i]); |
1685 | if (spa->spa_spares.sav_vdevs) { | |
1686 | kmem_free(spa->spa_spares.sav_vdevs, | |
1687 | spa->spa_spares.sav_count * sizeof (void *)); | |
1688 | spa->spa_spares.sav_vdevs = NULL; | |
1689 | } | |
1690 | if (spa->spa_spares.sav_config) { | |
1691 | nvlist_free(spa->spa_spares.sav_config); | |
1692 | spa->spa_spares.sav_config = NULL; | |
1693 | } | |
b128c09f | 1694 | spa->spa_spares.sav_count = 0; |
34dc7c2f | 1695 | |
93e28d66 | 1696 | for (int i = 0; i < spa->spa_l2cache.sav_count; i++) { |
5ffb9d1d | 1697 | vdev_clear_stats(spa->spa_l2cache.sav_vdevs[i]); |
34dc7c2f | 1698 | vdev_free(spa->spa_l2cache.sav_vdevs[i]); |
5ffb9d1d | 1699 | } |
34dc7c2f BB |
1700 | if (spa->spa_l2cache.sav_vdevs) { |
1701 | kmem_free(spa->spa_l2cache.sav_vdevs, | |
1702 | spa->spa_l2cache.sav_count * sizeof (void *)); | |
1703 | spa->spa_l2cache.sav_vdevs = NULL; | |
1704 | } | |
1705 | if (spa->spa_l2cache.sav_config) { | |
1706 | nvlist_free(spa->spa_l2cache.sav_config); | |
1707 | spa->spa_l2cache.sav_config = NULL; | |
1708 | } | |
b128c09f | 1709 | spa->spa_l2cache.sav_count = 0; |
34dc7c2f BB |
1710 | |
1711 | spa->spa_async_suspended = 0; | |
fb5f0bc8 | 1712 | |
a1d477c2 MA |
1713 | spa->spa_indirect_vdevs_loaded = B_FALSE; |
1714 | ||
d96eb2b1 DM |
1715 | if (spa->spa_comment != NULL) { |
1716 | spa_strfree(spa->spa_comment); | |
1717 | spa->spa_comment = NULL; | |
1718 | } | |
658fb802 CB |
1719 | if (spa->spa_compatibility != NULL) { |
1720 | spa_strfree(spa->spa_compatibility); | |
1721 | spa->spa_compatibility = NULL; | |
1722 | } | |
d96eb2b1 | 1723 | |
619f0976 | 1724 | spa_config_exit(spa, SCL_ALL, spa); |
34dc7c2f BB |
1725 | } |
1726 | ||
1727 | /* | |
1728 | * Load (or re-load) the current list of vdevs describing the active spares for | |
1729 | * this pool. When this is called, we have some form of basic information in | |
1730 | * 'spa_spares.sav_config'. We parse this into vdevs, try to open them, and | |
1731 | * then re-generate a more complete list including status information. | |
1732 | */ | |
a1d477c2 | 1733 | void |
34dc7c2f BB |
1734 | spa_load_spares(spa_t *spa) |
1735 | { | |
1736 | nvlist_t **spares; | |
1737 | uint_t nspares; | |
1738 | int i; | |
1739 | vdev_t *vd, *tvd; | |
1740 | ||
d2734cce SD |
1741 | #ifndef _KERNEL |
1742 | /* | |
1743 | * zdb opens both the current state of the pool and the | |
1744 | * checkpointed state (if present), with a different spa_t. | |
1745 | * | |
1746 | * As spare vdevs are shared among open pools, we skip loading | |
1747 | * them when we load the checkpointed state of the pool. | |
1748 | */ | |
1749 | if (!spa_writeable(spa)) | |
1750 | return; | |
1751 | #endif | |
1752 | ||
b128c09f BB |
1753 | ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL); |
1754 | ||
34dc7c2f BB |
1755 | /* |
1756 | * First, close and free any existing spare vdevs. | |
1757 | */ | |
1758 | for (i = 0; i < spa->spa_spares.sav_count; i++) { | |
1759 | vd = spa->spa_spares.sav_vdevs[i]; | |
1760 | ||
1761 | /* Undo the call to spa_activate() below */ | |
b128c09f BB |
1762 | if ((tvd = spa_lookup_by_guid(spa, vd->vdev_guid, |
1763 | B_FALSE)) != NULL && tvd->vdev_isspare) | |
34dc7c2f BB |
1764 | spa_spare_remove(tvd); |
1765 | vdev_close(vd); | |
1766 | vdev_free(vd); | |
1767 | } | |
1768 | ||
1769 | if (spa->spa_spares.sav_vdevs) | |
1770 | kmem_free(spa->spa_spares.sav_vdevs, | |
1771 | spa->spa_spares.sav_count * sizeof (void *)); | |
1772 | ||
1773 | if (spa->spa_spares.sav_config == NULL) | |
1774 | nspares = 0; | |
1775 | else | |
1776 | VERIFY(nvlist_lookup_nvlist_array(spa->spa_spares.sav_config, | |
1777 | ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); | |
1778 | ||
1779 | spa->spa_spares.sav_count = (int)nspares; | |
1780 | spa->spa_spares.sav_vdevs = NULL; | |
1781 | ||
1782 | if (nspares == 0) | |
1783 | return; | |
1784 | ||
1785 | /* | |
1786 | * Construct the array of vdevs, opening them to get status in the | |
1787 | * process. For each spare, there is potentially two different vdev_t | |
1788 | * structures associated with it: one in the list of spares (used only | |
1789 | * for basic validation purposes) and one in the active vdev | |
1790 | * configuration (if it's spared in). During this phase we open and | |
1791 | * validate each vdev on the spare list. If the vdev also exists in the | |
1792 | * active configuration, then we also mark this vdev as an active spare. | |
1793 | */ | |
904ea276 | 1794 | spa->spa_spares.sav_vdevs = kmem_zalloc(nspares * sizeof (void *), |
79c76d5b | 1795 | KM_SLEEP); |
34dc7c2f BB |
1796 | for (i = 0; i < spa->spa_spares.sav_count; i++) { |
1797 | VERIFY(spa_config_parse(spa, &vd, spares[i], NULL, 0, | |
1798 | VDEV_ALLOC_SPARE) == 0); | |
1799 | ASSERT(vd != NULL); | |
1800 | ||
1801 | spa->spa_spares.sav_vdevs[i] = vd; | |
1802 | ||
b128c09f BB |
1803 | if ((tvd = spa_lookup_by_guid(spa, vd->vdev_guid, |
1804 | B_FALSE)) != NULL) { | |
34dc7c2f BB |
1805 | if (!tvd->vdev_isspare) |
1806 | spa_spare_add(tvd); | |
1807 | ||
1808 | /* | |
1809 | * We only mark the spare active if we were successfully | |
1810 | * able to load the vdev. Otherwise, importing a pool | |
1811 | * with a bad active spare would result in strange | |
1812 | * behavior, because multiple pool would think the spare | |
1813 | * is actively in use. | |
1814 | * | |
1815 | * There is a vulnerability here to an equally bizarre | |
1816 | * circumstance, where a dead active spare is later | |
1817 | * brought back to life (onlined or otherwise). Given | |
1818 | * the rarity of this scenario, and the extra complexity | |
1819 | * it adds, we ignore the possibility. | |
1820 | */ | |
1821 | if (!vdev_is_dead(tvd)) | |
1822 | spa_spare_activate(tvd); | |
1823 | } | |
1824 | ||
b128c09f | 1825 | vd->vdev_top = vd; |
9babb374 | 1826 | vd->vdev_aux = &spa->spa_spares; |
b128c09f | 1827 | |
34dc7c2f BB |
1828 | if (vdev_open(vd) != 0) |
1829 | continue; | |
1830 | ||
34dc7c2f BB |
1831 | if (vdev_validate_aux(vd) == 0) |
1832 | spa_spare_add(vd); | |
1833 | } | |
1834 | ||
1835 | /* | |
1836 | * Recompute the stashed list of spares, with status information | |
1837 | * this time. | |
1838 | */ | |
1839 | VERIFY(nvlist_remove(spa->spa_spares.sav_config, ZPOOL_CONFIG_SPARES, | |
1840 | DATA_TYPE_NVLIST_ARRAY) == 0); | |
1841 | ||
1842 | spares = kmem_alloc(spa->spa_spares.sav_count * sizeof (void *), | |
79c76d5b | 1843 | KM_SLEEP); |
34dc7c2f BB |
1844 | for (i = 0; i < spa->spa_spares.sav_count; i++) |
1845 | spares[i] = vdev_config_generate(spa, | |
428870ff | 1846 | spa->spa_spares.sav_vdevs[i], B_TRUE, VDEV_CONFIG_SPARE); |
34dc7c2f BB |
1847 | VERIFY(nvlist_add_nvlist_array(spa->spa_spares.sav_config, |
1848 | ZPOOL_CONFIG_SPARES, spares, spa->spa_spares.sav_count) == 0); | |
1849 | for (i = 0; i < spa->spa_spares.sav_count; i++) | |
1850 | nvlist_free(spares[i]); | |
1851 | kmem_free(spares, spa->spa_spares.sav_count * sizeof (void *)); | |
1852 | } | |
1853 | ||
1854 | /* | |
1855 | * Load (or re-load) the current list of vdevs describing the active l2cache for | |
1856 | * this pool. When this is called, we have some form of basic information in | |
1857 | * 'spa_l2cache.sav_config'. We parse this into vdevs, try to open them, and | |
1858 | * then re-generate a more complete list including status information. | |
1859 | * Devices which are already active have their details maintained, and are | |
1860 | * not re-opened. | |
1861 | */ | |
a1d477c2 | 1862 | void |
34dc7c2f BB |
1863 | spa_load_l2cache(spa_t *spa) |
1864 | { | |
460f239e | 1865 | nvlist_t **l2cache = NULL; |
34dc7c2f BB |
1866 | uint_t nl2cache; |
1867 | int i, j, oldnvdevs; | |
9babb374 | 1868 | uint64_t guid; |
a117a6d6 | 1869 | vdev_t *vd, **oldvdevs, **newvdevs; |
34dc7c2f BB |
1870 | spa_aux_vdev_t *sav = &spa->spa_l2cache; |
1871 | ||
d2734cce SD |
1872 | #ifndef _KERNEL |
1873 | /* | |
1874 | * zdb opens both the current state of the pool and the | |
1875 | * checkpointed state (if present), with a different spa_t. | |
1876 | * | |
1877 | * As L2 caches are part of the ARC which is shared among open | |
1878 | * pools, we skip loading them when we load the checkpointed | |
1879 | * state of the pool. | |
1880 | */ | |
1881 | if (!spa_writeable(spa)) | |
1882 | return; | |
1883 | #endif | |
1884 | ||
b128c09f BB |
1885 | ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL); |
1886 | ||
34dc7c2f BB |
1887 | oldvdevs = sav->sav_vdevs; |
1888 | oldnvdevs = sav->sav_count; | |
1889 | sav->sav_vdevs = NULL; | |
1890 | sav->sav_count = 0; | |
1891 | ||
67d60824 NB |
1892 | if (sav->sav_config == NULL) { |
1893 | nl2cache = 0; | |
1894 | newvdevs = NULL; | |
1895 | goto out; | |
1896 | } | |
1897 | ||
1898 | VERIFY(nvlist_lookup_nvlist_array(sav->sav_config, | |
1899 | ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0); | |
1900 | newvdevs = kmem_alloc(nl2cache * sizeof (void *), KM_SLEEP); | |
1901 | ||
34dc7c2f BB |
1902 | /* |
1903 | * Process new nvlist of vdevs. | |
1904 | */ | |
1905 | for (i = 0; i < nl2cache; i++) { | |
1906 | VERIFY(nvlist_lookup_uint64(l2cache[i], ZPOOL_CONFIG_GUID, | |
1907 | &guid) == 0); | |
1908 | ||
1909 | newvdevs[i] = NULL; | |
1910 | for (j = 0; j < oldnvdevs; j++) { | |
1911 | vd = oldvdevs[j]; | |
1912 | if (vd != NULL && guid == vd->vdev_guid) { | |
1913 | /* | |
1914 | * Retain previous vdev for add/remove ops. | |
1915 | */ | |
1916 | newvdevs[i] = vd; | |
1917 | oldvdevs[j] = NULL; | |
1918 | break; | |
1919 | } | |
1920 | } | |
1921 | ||
1922 | if (newvdevs[i] == NULL) { | |
1923 | /* | |
1924 | * Create new vdev | |
1925 | */ | |
1926 | VERIFY(spa_config_parse(spa, &vd, l2cache[i], NULL, 0, | |
1927 | VDEV_ALLOC_L2CACHE) == 0); | |
1928 | ASSERT(vd != NULL); | |
1929 | newvdevs[i] = vd; | |
1930 | ||
1931 | /* | |
1932 | * Commit this vdev as an l2cache device, | |
1933 | * even if it fails to open. | |
1934 | */ | |
1935 | spa_l2cache_add(vd); | |
1936 | ||
b128c09f BB |
1937 | vd->vdev_top = vd; |
1938 | vd->vdev_aux = sav; | |
1939 | ||
1940 | spa_l2cache_activate(vd); | |
1941 | ||
34dc7c2f BB |
1942 | if (vdev_open(vd) != 0) |
1943 | continue; | |
1944 | ||
34dc7c2f BB |
1945 | (void) vdev_validate_aux(vd); |
1946 | ||
9babb374 BB |
1947 | if (!vdev_is_dead(vd)) |
1948 | l2arc_add_vdev(spa, vd); | |
b7654bd7 GA |
1949 | |
1950 | /* | |
1951 | * Upon cache device addition to a pool or pool | |
1952 | * creation with a cache device or if the header | |
1953 | * of the device is invalid we issue an async | |
1954 | * TRIM command for the whole device which will | |
1955 | * execute if l2arc_trim_ahead > 0. | |
1956 | */ | |
1957 | spa_async_request(spa, SPA_ASYNC_L2CACHE_TRIM); | |
34dc7c2f BB |
1958 | } |
1959 | } | |
1960 | ||
67d60824 NB |
1961 | sav->sav_vdevs = newvdevs; |
1962 | sav->sav_count = (int)nl2cache; | |
1963 | ||
1964 | /* | |
1965 | * Recompute the stashed list of l2cache devices, with status | |
1966 | * information this time. | |
1967 | */ | |
1968 | VERIFY(nvlist_remove(sav->sav_config, ZPOOL_CONFIG_L2CACHE, | |
1969 | DATA_TYPE_NVLIST_ARRAY) == 0); | |
1970 | ||
460f239e D |
1971 | if (sav->sav_count > 0) |
1972 | l2cache = kmem_alloc(sav->sav_count * sizeof (void *), | |
1973 | KM_SLEEP); | |
67d60824 NB |
1974 | for (i = 0; i < sav->sav_count; i++) |
1975 | l2cache[i] = vdev_config_generate(spa, | |
1976 | sav->sav_vdevs[i], B_TRUE, VDEV_CONFIG_L2CACHE); | |
1977 | VERIFY(nvlist_add_nvlist_array(sav->sav_config, | |
1978 | ZPOOL_CONFIG_L2CACHE, l2cache, sav->sav_count) == 0); | |
1979 | ||
1980 | out: | |
34dc7c2f BB |
1981 | /* |
1982 | * Purge vdevs that were dropped | |
1983 | */ | |
1984 | for (i = 0; i < oldnvdevs; i++) { | |
1985 | uint64_t pool; | |
1986 | ||
1987 | vd = oldvdevs[i]; | |
1988 | if (vd != NULL) { | |
5ffb9d1d GW |
1989 | ASSERT(vd->vdev_isl2cache); |
1990 | ||
fb5f0bc8 BB |
1991 | if (spa_l2cache_exists(vd->vdev_guid, &pool) && |
1992 | pool != 0ULL && l2arc_vdev_present(vd)) | |
34dc7c2f | 1993 | l2arc_remove_vdev(vd); |
5ffb9d1d GW |
1994 | vdev_clear_stats(vd); |
1995 | vdev_free(vd); | |
34dc7c2f BB |
1996 | } |
1997 | } | |
1998 | ||
1999 | if (oldvdevs) | |
2000 | kmem_free(oldvdevs, oldnvdevs * sizeof (void *)); | |
2001 | ||
34dc7c2f BB |
2002 | for (i = 0; i < sav->sav_count; i++) |
2003 | nvlist_free(l2cache[i]); | |
2004 | if (sav->sav_count) | |
2005 | kmem_free(l2cache, sav->sav_count * sizeof (void *)); | |
2006 | } | |
2007 | ||
2008 | static int | |
2009 | load_nvlist(spa_t *spa, uint64_t obj, nvlist_t **value) | |
2010 | { | |
2011 | dmu_buf_t *db; | |
2012 | char *packed = NULL; | |
2013 | size_t nvsize = 0; | |
2014 | int error; | |
2015 | *value = NULL; | |
2016 | ||
c3275b56 BB |
2017 | error = dmu_bonus_hold(spa->spa_meta_objset, obj, FTAG, &db); |
2018 | if (error) | |
2019 | return (error); | |
2020 | ||
34dc7c2f BB |
2021 | nvsize = *(uint64_t *)db->db_data; |
2022 | dmu_buf_rele(db, FTAG); | |
2023 | ||
77aef6f6 | 2024 | packed = vmem_alloc(nvsize, KM_SLEEP); |
9babb374 BB |
2025 | error = dmu_read(spa->spa_meta_objset, obj, 0, nvsize, packed, |
2026 | DMU_READ_PREFETCH); | |
34dc7c2f BB |
2027 | if (error == 0) |
2028 | error = nvlist_unpack(packed, nvsize, value, 0); | |
77aef6f6 | 2029 | vmem_free(packed, nvsize); |
34dc7c2f BB |
2030 | |
2031 | return (error); | |
2032 | } | |
2033 | ||
6cb8e530 PZ |
2034 | /* |
2035 | * Concrete top-level vdevs that are not missing and are not logs. At every | |
2036 | * spa_sync we write new uberblocks to at least SPA_SYNC_MIN_VDEVS core tvds. | |
2037 | */ | |
2038 | static uint64_t | |
2039 | spa_healthy_core_tvds(spa_t *spa) | |
2040 | { | |
2041 | vdev_t *rvd = spa->spa_root_vdev; | |
2042 | uint64_t tvds = 0; | |
2043 | ||
2044 | for (uint64_t i = 0; i < rvd->vdev_children; i++) { | |
2045 | vdev_t *vd = rvd->vdev_child[i]; | |
2046 | if (vd->vdev_islog) | |
2047 | continue; | |
2048 | if (vdev_is_concrete(vd) && !vdev_is_dead(vd)) | |
2049 | tvds++; | |
2050 | } | |
2051 | ||
2052 | return (tvds); | |
2053 | } | |
2054 | ||
34dc7c2f BB |
2055 | /* |
2056 | * Checks to see if the given vdev could not be opened, in which case we post a | |
2057 | * sysevent to notify the autoreplace code that the device has been removed. | |
2058 | */ | |
2059 | static void | |
2060 | spa_check_removed(vdev_t *vd) | |
2061 | { | |
6cb8e530 | 2062 | for (uint64_t c = 0; c < vd->vdev_children; c++) |
34dc7c2f BB |
2063 | spa_check_removed(vd->vdev_child[c]); |
2064 | ||
7011fb60 | 2065 | if (vd->vdev_ops->vdev_op_leaf && vdev_is_dead(vd) && |
a1d477c2 | 2066 | vdev_is_concrete(vd)) { |
fb390aaf | 2067 | zfs_post_autoreplace(vd->vdev_spa, vd); |
12fa0466 | 2068 | spa_event_notify(vd->vdev_spa, vd, NULL, ESC_ZFS_VDEV_CHECK); |
34dc7c2f BB |
2069 | } |
2070 | } | |
2071 | ||
6cb8e530 PZ |
2072 | static int |
2073 | spa_check_for_missing_logs(spa_t *spa) | |
9babb374 | 2074 | { |
6cb8e530 | 2075 | vdev_t *rvd = spa->spa_root_vdev; |
9babb374 | 2076 | |
428870ff | 2077 | /* |
572e2857 | 2078 | * If we're doing a normal import, then build up any additional |
6cb8e530 | 2079 | * diagnostic information about missing log devices. |
572e2857 | 2080 | * We'll pass this up to the user for further processing. |
428870ff | 2081 | */ |
572e2857 BB |
2082 | if (!(spa->spa_import_flags & ZFS_IMPORT_MISSING_LOG)) { |
2083 | nvlist_t **child, *nv; | |
2084 | uint64_t idx = 0; | |
2085 | ||
160987b5 | 2086 | child = kmem_alloc(rvd->vdev_children * sizeof (nvlist_t *), |
79c76d5b BB |
2087 | KM_SLEEP); |
2088 | VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
572e2857 | 2089 | |
6cb8e530 | 2090 | for (uint64_t c = 0; c < rvd->vdev_children; c++) { |
572e2857 | 2091 | vdev_t *tvd = rvd->vdev_child[c]; |
572e2857 | 2092 | |
6cb8e530 PZ |
2093 | /* |
2094 | * We consider a device as missing only if it failed | |
2095 | * to open (i.e. offline or faulted is not considered | |
2096 | * as missing). | |
2097 | */ | |
2098 | if (tvd->vdev_islog && | |
2099 | tvd->vdev_state == VDEV_STATE_CANT_OPEN) { | |
2100 | child[idx++] = vdev_config_generate(spa, tvd, | |
2101 | B_FALSE, VDEV_CONFIG_MISSING); | |
2102 | } | |
572e2857 | 2103 | } |
9babb374 | 2104 | |
6cb8e530 PZ |
2105 | if (idx > 0) { |
2106 | fnvlist_add_nvlist_array(nv, | |
2107 | ZPOOL_CONFIG_CHILDREN, child, idx); | |
2108 | fnvlist_add_nvlist(spa->spa_load_info, | |
2109 | ZPOOL_CONFIG_MISSING_DEVICES, nv); | |
572e2857 | 2110 | |
6cb8e530 | 2111 | for (uint64_t i = 0; i < idx; i++) |
572e2857 BB |
2112 | nvlist_free(child[i]); |
2113 | } | |
2114 | nvlist_free(nv); | |
2115 | kmem_free(child, rvd->vdev_children * sizeof (char **)); | |
572e2857 | 2116 | |
6cb8e530 PZ |
2117 | if (idx > 0) { |
2118 | spa_load_failed(spa, "some log devices are missing"); | |
db7d07e1 | 2119 | vdev_dbgmsg_print_tree(rvd, 2); |
6cb8e530 PZ |
2120 | return (SET_ERROR(ENXIO)); |
2121 | } | |
2122 | } else { | |
2123 | for (uint64_t c = 0; c < rvd->vdev_children; c++) { | |
2124 | vdev_t *tvd = rvd->vdev_child[c]; | |
a1d477c2 | 2125 | |
6cb8e530 PZ |
2126 | if (tvd->vdev_islog && |
2127 | tvd->vdev_state == VDEV_STATE_CANT_OPEN) { | |
572e2857 | 2128 | spa_set_log_state(spa, SPA_LOG_CLEAR); |
6cb8e530 PZ |
2129 | spa_load_note(spa, "some log devices are " |
2130 | "missing, ZIL is dropped."); | |
db7d07e1 | 2131 | vdev_dbgmsg_print_tree(rvd, 2); |
6cb8e530 | 2132 | break; |
e0ab3ab5 | 2133 | } |
572e2857 | 2134 | } |
9babb374 | 2135 | } |
e0ab3ab5 | 2136 | |
6cb8e530 | 2137 | return (0); |
9babb374 BB |
2138 | } |
2139 | ||
b128c09f BB |
2140 | /* |
2141 | * Check for missing log devices | |
2142 | */ | |
13fe0198 | 2143 | static boolean_t |
b128c09f BB |
2144 | spa_check_logs(spa_t *spa) |
2145 | { | |
13fe0198 | 2146 | boolean_t rv = B_FALSE; |
9c43027b | 2147 | dsl_pool_t *dp = spa_get_dsl(spa); |
13fe0198 | 2148 | |
b128c09f | 2149 | switch (spa->spa_log_state) { |
e75c13c3 BB |
2150 | default: |
2151 | break; | |
b128c09f BB |
2152 | case SPA_LOG_MISSING: |
2153 | /* need to recheck in case slog has been restored */ | |
2154 | case SPA_LOG_UNKNOWN: | |
9c43027b AJ |
2155 | rv = (dmu_objset_find_dp(dp, dp->dp_root_dir_obj, |
2156 | zil_check_log_chain, NULL, DS_FIND_CHILDREN) != 0); | |
13fe0198 | 2157 | if (rv) |
428870ff | 2158 | spa_set_log_state(spa, SPA_LOG_MISSING); |
b128c09f | 2159 | break; |
b128c09f | 2160 | } |
13fe0198 | 2161 | return (rv); |
b128c09f BB |
2162 | } |
2163 | ||
aa755b35 MA |
2164 | /* |
2165 | * Passivate any log vdevs (note, does not apply to embedded log metaslabs). | |
2166 | */ | |
428870ff BB |
2167 | static boolean_t |
2168 | spa_passivate_log(spa_t *spa) | |
34dc7c2f | 2169 | { |
428870ff BB |
2170 | vdev_t *rvd = spa->spa_root_vdev; |
2171 | boolean_t slog_found = B_FALSE; | |
b128c09f | 2172 | |
428870ff | 2173 | ASSERT(spa_config_held(spa, SCL_ALLOC, RW_WRITER)); |
fb5f0bc8 | 2174 | |
1c27024e | 2175 | for (int c = 0; c < rvd->vdev_children; c++) { |
428870ff | 2176 | vdev_t *tvd = rvd->vdev_child[c]; |
34dc7c2f | 2177 | |
428870ff | 2178 | if (tvd->vdev_islog) { |
aa755b35 MA |
2179 | ASSERT3P(tvd->vdev_log_mg, ==, NULL); |
2180 | metaslab_group_passivate(tvd->vdev_mg); | |
428870ff BB |
2181 | slog_found = B_TRUE; |
2182 | } | |
34dc7c2f BB |
2183 | } |
2184 | ||
428870ff BB |
2185 | return (slog_found); |
2186 | } | |
34dc7c2f | 2187 | |
aa755b35 MA |
2188 | /* |
2189 | * Activate any log vdevs (note, does not apply to embedded log metaslabs). | |
2190 | */ | |
428870ff BB |
2191 | static void |
2192 | spa_activate_log(spa_t *spa) | |
2193 | { | |
2194 | vdev_t *rvd = spa->spa_root_vdev; | |
34dc7c2f | 2195 | |
428870ff BB |
2196 | ASSERT(spa_config_held(spa, SCL_ALLOC, RW_WRITER)); |
2197 | ||
1c27024e | 2198 | for (int c = 0; c < rvd->vdev_children; c++) { |
428870ff | 2199 | vdev_t *tvd = rvd->vdev_child[c]; |
428870ff | 2200 | |
aa755b35 MA |
2201 | if (tvd->vdev_islog) { |
2202 | ASSERT3P(tvd->vdev_log_mg, ==, NULL); | |
2203 | metaslab_group_activate(tvd->vdev_mg); | |
2204 | } | |
34dc7c2f | 2205 | } |
428870ff | 2206 | } |
34dc7c2f | 2207 | |
428870ff | 2208 | int |
a1d477c2 | 2209 | spa_reset_logs(spa_t *spa) |
428870ff | 2210 | { |
13fe0198 | 2211 | int error; |
9babb374 | 2212 | |
a1d477c2 | 2213 | error = dmu_objset_find(spa_name(spa), zil_reset, |
13fe0198 MA |
2214 | NULL, DS_FIND_CHILDREN); |
2215 | if (error == 0) { | |
428870ff BB |
2216 | /* |
2217 | * We successfully offlined the log device, sync out the | |
2218 | * current txg so that the "stubby" block can be removed | |
2219 | * by zil_sync(). | |
2220 | */ | |
2221 | txg_wait_synced(spa->spa_dsl_pool, 0); | |
2222 | } | |
2223 | return (error); | |
2224 | } | |
34dc7c2f | 2225 | |
428870ff BB |
2226 | static void |
2227 | spa_aux_check_removed(spa_aux_vdev_t *sav) | |
2228 | { | |
1c27024e | 2229 | for (int i = 0; i < sav->sav_count; i++) |
428870ff BB |
2230 | spa_check_removed(sav->sav_vdevs[i]); |
2231 | } | |
34dc7c2f | 2232 | |
428870ff BB |
2233 | void |
2234 | spa_claim_notify(zio_t *zio) | |
2235 | { | |
2236 | spa_t *spa = zio->io_spa; | |
34dc7c2f | 2237 | |
428870ff BB |
2238 | if (zio->io_error) |
2239 | return; | |
34dc7c2f | 2240 | |
428870ff BB |
2241 | mutex_enter(&spa->spa_props_lock); /* any mutex will do */ |
2242 | if (spa->spa_claim_max_txg < zio->io_bp->blk_birth) | |
2243 | spa->spa_claim_max_txg = zio->io_bp->blk_birth; | |
2244 | mutex_exit(&spa->spa_props_lock); | |
2245 | } | |
34dc7c2f | 2246 | |
428870ff BB |
2247 | typedef struct spa_load_error { |
2248 | uint64_t sle_meta_count; | |
2249 | uint64_t sle_data_count; | |
2250 | } spa_load_error_t; | |
34dc7c2f | 2251 | |
428870ff BB |
2252 | static void |
2253 | spa_load_verify_done(zio_t *zio) | |
2254 | { | |
2255 | blkptr_t *bp = zio->io_bp; | |
2256 | spa_load_error_t *sle = zio->io_private; | |
2257 | dmu_object_type_t type = BP_GET_TYPE(bp); | |
2258 | int error = zio->io_error; | |
dea377c0 | 2259 | spa_t *spa = zio->io_spa; |
34dc7c2f | 2260 | |
a6255b7f | 2261 | abd_free(zio->io_abd); |
428870ff | 2262 | if (error) { |
9ae529ec | 2263 | if ((BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)) && |
428870ff | 2264 | type != DMU_OT_INTENT_LOG) |
bc89ac84 | 2265 | atomic_inc_64(&sle->sle_meta_count); |
428870ff | 2266 | else |
bc89ac84 | 2267 | atomic_inc_64(&sle->sle_data_count); |
34dc7c2f | 2268 | } |
dea377c0 MA |
2269 | |
2270 | mutex_enter(&spa->spa_scrub_lock); | |
c8242a96 | 2271 | spa->spa_load_verify_bytes -= BP_GET_PSIZE(bp); |
dea377c0 MA |
2272 | cv_broadcast(&spa->spa_scrub_io_cv); |
2273 | mutex_exit(&spa->spa_scrub_lock); | |
428870ff | 2274 | } |
34dc7c2f | 2275 | |
dea377c0 | 2276 | /* |
e1cfd73f | 2277 | * Maximum number of inflight bytes is the log2 fraction of the arc size. |
c8242a96 | 2278 | * By default, we set it to 1/16th of the arc. |
dea377c0 | 2279 | */ |
c8242a96 | 2280 | int spa_load_verify_shift = 4; |
dea377c0 MA |
2281 | int spa_load_verify_metadata = B_TRUE; |
2282 | int spa_load_verify_data = B_TRUE; | |
2283 | ||
428870ff BB |
2284 | /*ARGSUSED*/ |
2285 | static int | |
2286 | spa_load_verify_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, | |
5dbd68a3 | 2287 | const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) |
428870ff | 2288 | { |
30af21b0 PD |
2289 | if (zb->zb_level == ZB_DNODE_LEVEL || BP_IS_HOLE(bp) || |
2290 | BP_IS_EMBEDDED(bp) || BP_IS_REDACTED(bp)) | |
dea377c0 MA |
2291 | return (0); |
2292 | /* | |
2293 | * Note: normally this routine will not be called if | |
2294 | * spa_load_verify_metadata is not set. However, it may be useful | |
2295 | * to manually set the flag after the traversal has begun. | |
2296 | */ | |
2297 | if (!spa_load_verify_metadata) | |
2298 | return (0); | |
a6255b7f | 2299 | if (!BP_IS_METADATA(bp) && !spa_load_verify_data) |
dea377c0 MA |
2300 | return (0); |
2301 | ||
1e527162 GW |
2302 | uint64_t maxinflight_bytes = |
2303 | arc_target_bytes() >> spa_load_verify_shift; | |
1c27024e DB |
2304 | zio_t *rio = arg; |
2305 | size_t size = BP_GET_PSIZE(bp); | |
dea377c0 MA |
2306 | |
2307 | mutex_enter(&spa->spa_scrub_lock); | |
c8242a96 | 2308 | while (spa->spa_load_verify_bytes >= maxinflight_bytes) |
dea377c0 | 2309 | cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); |
c8242a96 | 2310 | spa->spa_load_verify_bytes += size; |
dea377c0 MA |
2311 | mutex_exit(&spa->spa_scrub_lock); |
2312 | ||
a6255b7f | 2313 | zio_nowait(zio_read(rio, spa, bp, abd_alloc_for_io(size, B_FALSE), size, |
dea377c0 MA |
2314 | spa_load_verify_done, rio->io_private, ZIO_PRIORITY_SCRUB, |
2315 | ZIO_FLAG_SPECULATIVE | ZIO_FLAG_CANFAIL | | |
2316 | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW, zb)); | |
428870ff BB |
2317 | return (0); |
2318 | } | |
34dc7c2f | 2319 | |
d1d19c78 | 2320 | /* ARGSUSED */ |
65c7cc49 | 2321 | static int |
d1d19c78 PD |
2322 | verify_dataset_name_len(dsl_pool_t *dp, dsl_dataset_t *ds, void *arg) |
2323 | { | |
2324 | if (dsl_dataset_namelen(ds) >= ZFS_MAX_DATASET_NAME_LEN) | |
2325 | return (SET_ERROR(ENAMETOOLONG)); | |
2326 | ||
2327 | return (0); | |
2328 | } | |
2329 | ||
428870ff BB |
2330 | static int |
2331 | spa_load_verify(spa_t *spa) | |
2332 | { | |
2333 | zio_t *rio; | |
2334 | spa_load_error_t sle = { 0 }; | |
8a393be3 | 2335 | zpool_load_policy_t policy; |
428870ff | 2336 | boolean_t verify_ok = B_FALSE; |
dea377c0 | 2337 | int error = 0; |
34dc7c2f | 2338 | |
8a393be3 | 2339 | zpool_get_load_policy(spa->spa_config, &policy); |
34dc7c2f | 2340 | |
8a393be3 | 2341 | if (policy.zlp_rewind & ZPOOL_NEVER_REWIND) |
428870ff | 2342 | return (0); |
34dc7c2f | 2343 | |
d1d19c78 PD |
2344 | dsl_pool_config_enter(spa->spa_dsl_pool, FTAG); |
2345 | error = dmu_objset_find_dp(spa->spa_dsl_pool, | |
2346 | spa->spa_dsl_pool->dp_root_dir_obj, verify_dataset_name_len, NULL, | |
2347 | DS_FIND_CHILDREN); | |
2348 | dsl_pool_config_exit(spa->spa_dsl_pool, FTAG); | |
2349 | if (error != 0) | |
2350 | return (error); | |
2351 | ||
428870ff BB |
2352 | rio = zio_root(spa, NULL, &sle, |
2353 | ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE); | |
34dc7c2f | 2354 | |
dea377c0 | 2355 | if (spa_load_verify_metadata) { |
4a0ee12a PZ |
2356 | if (spa->spa_extreme_rewind) { |
2357 | spa_load_note(spa, "performing a complete scan of the " | |
2358 | "pool since extreme rewind is on. This may take " | |
2359 | "a very long time.\n (spa_load_verify_data=%u, " | |
2360 | "spa_load_verify_metadata=%u)", | |
2361 | spa_load_verify_data, spa_load_verify_metadata); | |
2362 | } | |
c8242a96 | 2363 | |
dea377c0 | 2364 | error = traverse_pool(spa, spa->spa_verify_min_txg, |
b5256303 TC |
2365 | TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | |
2366 | TRAVERSE_NO_DECRYPT, spa_load_verify_cb, rio); | |
dea377c0 | 2367 | } |
428870ff BB |
2368 | |
2369 | (void) zio_wait(rio); | |
c8242a96 | 2370 | ASSERT0(spa->spa_load_verify_bytes); |
428870ff BB |
2371 | |
2372 | spa->spa_load_meta_errors = sle.sle_meta_count; | |
2373 | spa->spa_load_data_errors = sle.sle_data_count; | |
2374 | ||
afd2f7b7 PZ |
2375 | if (sle.sle_meta_count != 0 || sle.sle_data_count != 0) { |
2376 | spa_load_note(spa, "spa_load_verify found %llu metadata errors " | |
2377 | "and %llu data errors", (u_longlong_t)sle.sle_meta_count, | |
2378 | (u_longlong_t)sle.sle_data_count); | |
2379 | } | |
2380 | ||
2381 | if (spa_load_verify_dryrun || | |
8a393be3 PZ |
2382 | (!error && sle.sle_meta_count <= policy.zlp_maxmeta && |
2383 | sle.sle_data_count <= policy.zlp_maxdata)) { | |
572e2857 BB |
2384 | int64_t loss = 0; |
2385 | ||
428870ff BB |
2386 | verify_ok = B_TRUE; |
2387 | spa->spa_load_txg = spa->spa_uberblock.ub_txg; | |
2388 | spa->spa_load_txg_ts = spa->spa_uberblock.ub_timestamp; | |
572e2857 BB |
2389 | |
2390 | loss = spa->spa_last_ubsync_txg_ts - spa->spa_load_txg_ts; | |
2391 | VERIFY(nvlist_add_uint64(spa->spa_load_info, | |
2392 | ZPOOL_CONFIG_LOAD_TIME, spa->spa_load_txg_ts) == 0); | |
2393 | VERIFY(nvlist_add_int64(spa->spa_load_info, | |
2394 | ZPOOL_CONFIG_REWIND_TIME, loss) == 0); | |
2395 | VERIFY(nvlist_add_uint64(spa->spa_load_info, | |
2396 | ZPOOL_CONFIG_LOAD_DATA_ERRORS, sle.sle_data_count) == 0); | |
428870ff BB |
2397 | } else { |
2398 | spa->spa_load_max_txg = spa->spa_uberblock.ub_txg; | |
2399 | } | |
2400 | ||
afd2f7b7 PZ |
2401 | if (spa_load_verify_dryrun) |
2402 | return (0); | |
2403 | ||
428870ff BB |
2404 | if (error) { |
2405 | if (error != ENXIO && error != EIO) | |
2e528b49 | 2406 | error = SET_ERROR(EIO); |
428870ff BB |
2407 | return (error); |
2408 | } | |
2409 | ||
2410 | return (verify_ok ? 0 : EIO); | |
2411 | } | |
2412 | ||
2413 | /* | |
2414 | * Find a value in the pool props object. | |
2415 | */ | |
2416 | static void | |
2417 | spa_prop_find(spa_t *spa, zpool_prop_t prop, uint64_t *val) | |
2418 | { | |
2419 | (void) zap_lookup(spa->spa_meta_objset, spa->spa_pool_props_object, | |
2420 | zpool_prop_to_name(prop), sizeof (uint64_t), 1, val); | |
2421 | } | |
2422 | ||
2423 | /* | |
2424 | * Find a value in the pool directory object. | |
2425 | */ | |
2426 | static int | |
4a0ee12a | 2427 | spa_dir_prop(spa_t *spa, const char *name, uint64_t *val, boolean_t log_enoent) |
428870ff | 2428 | { |
4a0ee12a PZ |
2429 | int error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, |
2430 | name, sizeof (uint64_t), 1, val); | |
2431 | ||
2432 | if (error != 0 && (error != ENOENT || log_enoent)) { | |
2433 | spa_load_failed(spa, "couldn't get '%s' value in MOS directory " | |
2434 | "[error=%d]", name, error); | |
2435 | } | |
2436 | ||
2437 | return (error); | |
428870ff BB |
2438 | } |
2439 | ||
2440 | static int | |
2441 | spa_vdev_err(vdev_t *vdev, vdev_aux_t aux, int err) | |
2442 | { | |
2443 | vdev_set_state(vdev, B_TRUE, VDEV_STATE_CANT_OPEN, aux); | |
a1d477c2 | 2444 | return (SET_ERROR(err)); |
428870ff BB |
2445 | } |
2446 | ||
37f03da8 SH |
2447 | boolean_t |
2448 | spa_livelist_delete_check(spa_t *spa) | |
2449 | { | |
2450 | return (spa->spa_livelists_to_delete != 0); | |
2451 | } | |
2452 | ||
2453 | /* ARGSUSED */ | |
2454 | static boolean_t | |
2455 | spa_livelist_delete_cb_check(void *arg, zthr_t *z) | |
2456 | { | |
2457 | spa_t *spa = arg; | |
2458 | return (spa_livelist_delete_check(spa)); | |
2459 | } | |
2460 | ||
2461 | static int | |
2462 | delete_blkptr_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) | |
2463 | { | |
2464 | spa_t *spa = arg; | |
2465 | zio_free(spa, tx->tx_txg, bp); | |
2466 | dsl_dir_diduse_space(tx->tx_pool->dp_free_dir, DD_USED_HEAD, | |
2467 | -bp_get_dsize_sync(spa, bp), | |
2468 | -BP_GET_PSIZE(bp), -BP_GET_UCSIZE(bp), tx); | |
2469 | return (0); | |
2470 | } | |
2471 | ||
2472 | static int | |
2473 | dsl_get_next_livelist_obj(objset_t *os, uint64_t zap_obj, uint64_t *llp) | |
2474 | { | |
2475 | int err; | |
2476 | zap_cursor_t zc; | |
2477 | zap_attribute_t za; | |
2478 | zap_cursor_init(&zc, os, zap_obj); | |
2479 | err = zap_cursor_retrieve(&zc, &za); | |
2480 | zap_cursor_fini(&zc); | |
2481 | if (err == 0) | |
2482 | *llp = za.za_first_integer; | |
2483 | return (err); | |
2484 | } | |
2485 | ||
2486 | /* | |
2487 | * Components of livelist deletion that must be performed in syncing | |
2488 | * context: freeing block pointers and updating the pool-wide data | |
2489 | * structures to indicate how much work is left to do | |
2490 | */ | |
2491 | typedef struct sublist_delete_arg { | |
2492 | spa_t *spa; | |
2493 | dsl_deadlist_t *ll; | |
2494 | uint64_t key; | |
2495 | bplist_t *to_free; | |
2496 | } sublist_delete_arg_t; | |
2497 | ||
2498 | static void | |
2499 | sublist_delete_sync(void *arg, dmu_tx_t *tx) | |
2500 | { | |
2501 | sublist_delete_arg_t *sda = arg; | |
2502 | spa_t *spa = sda->spa; | |
2503 | dsl_deadlist_t *ll = sda->ll; | |
2504 | uint64_t key = sda->key; | |
2505 | bplist_t *to_free = sda->to_free; | |
2506 | ||
2507 | bplist_iterate(to_free, delete_blkptr_cb, spa, tx); | |
2508 | dsl_deadlist_remove_entry(ll, key, tx); | |
2509 | } | |
2510 | ||
2511 | typedef struct livelist_delete_arg { | |
2512 | spa_t *spa; | |
2513 | uint64_t ll_obj; | |
2514 | uint64_t zap_obj; | |
2515 | } livelist_delete_arg_t; | |
2516 | ||
2517 | static void | |
2518 | livelist_delete_sync(void *arg, dmu_tx_t *tx) | |
2519 | { | |
2520 | livelist_delete_arg_t *lda = arg; | |
2521 | spa_t *spa = lda->spa; | |
2522 | uint64_t ll_obj = lda->ll_obj; | |
2523 | uint64_t zap_obj = lda->zap_obj; | |
2524 | objset_t *mos = spa->spa_meta_objset; | |
2525 | uint64_t count; | |
2526 | ||
2527 | /* free the livelist and decrement the feature count */ | |
2528 | VERIFY0(zap_remove_int(mos, zap_obj, ll_obj, tx)); | |
2529 | dsl_deadlist_free(mos, ll_obj, tx); | |
2530 | spa_feature_decr(spa, SPA_FEATURE_LIVELIST, tx); | |
2531 | VERIFY0(zap_count(mos, zap_obj, &count)); | |
2532 | if (count == 0) { | |
2533 | /* no more livelists to delete */ | |
2534 | VERIFY0(zap_remove(mos, DMU_POOL_DIRECTORY_OBJECT, | |
2535 | DMU_POOL_DELETED_CLONES, tx)); | |
2536 | VERIFY0(zap_destroy(mos, zap_obj, tx)); | |
2537 | spa->spa_livelists_to_delete = 0; | |
e60e158e | 2538 | spa_notify_waiters(spa); |
37f03da8 SH |
2539 | } |
2540 | } | |
2541 | ||
2542 | /* | |
2543 | * Load in the value for the livelist to be removed and open it. Then, | |
2544 | * load its first sublist and determine which block pointers should actually | |
2545 | * be freed. Then, call a synctask which performs the actual frees and updates | |
2546 | * the pool-wide livelist data. | |
2547 | */ | |
2548 | /* ARGSUSED */ | |
65c7cc49 | 2549 | static void |
37f03da8 SH |
2550 | spa_livelist_delete_cb(void *arg, zthr_t *z) |
2551 | { | |
2552 | spa_t *spa = arg; | |
2553 | uint64_t ll_obj = 0, count; | |
2554 | objset_t *mos = spa->spa_meta_objset; | |
2555 | uint64_t zap_obj = spa->spa_livelists_to_delete; | |
2556 | /* | |
2557 | * Determine the next livelist to delete. This function should only | |
2558 | * be called if there is at least one deleted clone. | |
2559 | */ | |
2560 | VERIFY0(dsl_get_next_livelist_obj(mos, zap_obj, &ll_obj)); | |
2561 | VERIFY0(zap_count(mos, ll_obj, &count)); | |
2562 | if (count > 0) { | |
c9562576 | 2563 | dsl_deadlist_t *ll; |
37f03da8 SH |
2564 | dsl_deadlist_entry_t *dle; |
2565 | bplist_t to_free; | |
c9562576 PS |
2566 | ll = kmem_zalloc(sizeof (dsl_deadlist_t), KM_SLEEP); |
2567 | dsl_deadlist_open(ll, mos, ll_obj); | |
2568 | dle = dsl_deadlist_first(ll); | |
37f03da8 SH |
2569 | ASSERT3P(dle, !=, NULL); |
2570 | bplist_create(&to_free); | |
2571 | int err = dsl_process_sub_livelist(&dle->dle_bpobj, &to_free, | |
2572 | z, NULL); | |
2573 | if (err == 0) { | |
2574 | sublist_delete_arg_t sync_arg = { | |
2575 | .spa = spa, | |
c9562576 | 2576 | .ll = ll, |
37f03da8 SH |
2577 | .key = dle->dle_mintxg, |
2578 | .to_free = &to_free | |
2579 | }; | |
2580 | zfs_dbgmsg("deleting sublist (id %llu) from" | |
8e739b2c RE |
2581 | " livelist %llu, %lld remaining", |
2582 | (u_longlong_t)dle->dle_bpobj.bpo_object, | |
2583 | (u_longlong_t)ll_obj, (longlong_t)count - 1); | |
37f03da8 SH |
2584 | VERIFY0(dsl_sync_task(spa_name(spa), NULL, |
2585 | sublist_delete_sync, &sync_arg, 0, | |
2586 | ZFS_SPACE_CHECK_DESTROY)); | |
2587 | } else { | |
d87676a9 | 2588 | VERIFY3U(err, ==, EINTR); |
37f03da8 SH |
2589 | } |
2590 | bplist_clear(&to_free); | |
2591 | bplist_destroy(&to_free); | |
c9562576 PS |
2592 | dsl_deadlist_close(ll); |
2593 | kmem_free(ll, sizeof (dsl_deadlist_t)); | |
37f03da8 SH |
2594 | } else { |
2595 | livelist_delete_arg_t sync_arg = { | |
2596 | .spa = spa, | |
2597 | .ll_obj = ll_obj, | |
2598 | .zap_obj = zap_obj | |
2599 | }; | |
8e739b2c RE |
2600 | zfs_dbgmsg("deletion of livelist %llu completed", |
2601 | (u_longlong_t)ll_obj); | |
37f03da8 SH |
2602 | VERIFY0(dsl_sync_task(spa_name(spa), NULL, livelist_delete_sync, |
2603 | &sync_arg, 0, ZFS_SPACE_CHECK_DESTROY)); | |
2604 | } | |
2605 | } | |
2606 | ||
65c7cc49 | 2607 | static void |
37f03da8 SH |
2608 | spa_start_livelist_destroy_thread(spa_t *spa) |
2609 | { | |
2610 | ASSERT3P(spa->spa_livelist_delete_zthr, ==, NULL); | |
843e9ca2 SD |
2611 | spa->spa_livelist_delete_zthr = |
2612 | zthr_create("z_livelist_destroy", | |
6bc61d22 TN |
2613 | spa_livelist_delete_cb_check, spa_livelist_delete_cb, spa, |
2614 | minclsyspri); | |
37f03da8 SH |
2615 | } |
2616 | ||
2617 | typedef struct livelist_new_arg { | |
2618 | bplist_t *allocs; | |
2619 | bplist_t *frees; | |
2620 | } livelist_new_arg_t; | |
2621 | ||
2622 | static int | |
2623 | livelist_track_new_cb(void *arg, const blkptr_t *bp, boolean_t bp_freed, | |
2624 | dmu_tx_t *tx) | |
2625 | { | |
2626 | ASSERT(tx == NULL); | |
2627 | livelist_new_arg_t *lna = arg; | |
2628 | if (bp_freed) { | |
2629 | bplist_append(lna->frees, bp); | |
2630 | } else { | |
2631 | bplist_append(lna->allocs, bp); | |
2632 | zfs_livelist_condense_new_alloc++; | |
2633 | } | |
2634 | return (0); | |
2635 | } | |
2636 | ||
2637 | typedef struct livelist_condense_arg { | |
2638 | spa_t *spa; | |
2639 | bplist_t to_keep; | |
2640 | uint64_t first_size; | |
2641 | uint64_t next_size; | |
2642 | } livelist_condense_arg_t; | |
2643 | ||
2644 | static void | |
2645 | spa_livelist_condense_sync(void *arg, dmu_tx_t *tx) | |
2646 | { | |
2647 | livelist_condense_arg_t *lca = arg; | |
2648 | spa_t *spa = lca->spa; | |
2649 | bplist_t new_frees; | |
2650 | dsl_dataset_t *ds = spa->spa_to_condense.ds; | |
2651 | ||
2652 | /* Have we been cancelled? */ | |
2653 | if (spa->spa_to_condense.cancelled) { | |
2654 | zfs_livelist_condense_sync_cancel++; | |
2655 | goto out; | |
2656 | } | |
2657 | ||
2658 | dsl_deadlist_entry_t *first = spa->spa_to_condense.first; | |
2659 | dsl_deadlist_entry_t *next = spa->spa_to_condense.next; | |
2660 | dsl_deadlist_t *ll = &ds->ds_dir->dd_livelist; | |
2661 | ||
2662 | /* | |
2663 | * It's possible that the livelist was changed while the zthr was | |
2664 | * running. Therefore, we need to check for new blkptrs in the two | |
2665 | * entries being condensed and continue to track them in the livelist. | |
2666 | * Because of the way we handle remapped blkptrs (see dbuf_remap_impl), | |
2667 | * it's possible that the newly added blkptrs are FREEs or ALLOCs so | |
2668 | * we need to sort them into two different bplists. | |
2669 | */ | |
2670 | uint64_t first_obj = first->dle_bpobj.bpo_object; | |
2671 | uint64_t next_obj = next->dle_bpobj.bpo_object; | |
2672 | uint64_t cur_first_size = first->dle_bpobj.bpo_phys->bpo_num_blkptrs; | |
2673 | uint64_t cur_next_size = next->dle_bpobj.bpo_phys->bpo_num_blkptrs; | |
2674 | ||
2675 | bplist_create(&new_frees); | |
2676 | livelist_new_arg_t new_bps = { | |
2677 | .allocs = &lca->to_keep, | |
2678 | .frees = &new_frees, | |
2679 | }; | |
2680 | ||
2681 | if (cur_first_size > lca->first_size) { | |
2682 | VERIFY0(livelist_bpobj_iterate_from_nofree(&first->dle_bpobj, | |
2683 | livelist_track_new_cb, &new_bps, lca->first_size)); | |
2684 | } | |
2685 | if (cur_next_size > lca->next_size) { | |
2686 | VERIFY0(livelist_bpobj_iterate_from_nofree(&next->dle_bpobj, | |
2687 | livelist_track_new_cb, &new_bps, lca->next_size)); | |
2688 | } | |
2689 | ||
2690 | dsl_deadlist_clear_entry(first, ll, tx); | |
2691 | ASSERT(bpobj_is_empty(&first->dle_bpobj)); | |
2692 | dsl_deadlist_remove_entry(ll, next->dle_mintxg, tx); | |
2693 | ||
2694 | bplist_iterate(&lca->to_keep, dsl_deadlist_insert_alloc_cb, ll, tx); | |
2695 | bplist_iterate(&new_frees, dsl_deadlist_insert_free_cb, ll, tx); | |
2696 | bplist_destroy(&new_frees); | |
2697 | ||
2698 | char dsname[ZFS_MAX_DATASET_NAME_LEN]; | |
2699 | dsl_dataset_name(ds, dsname); | |
2700 | zfs_dbgmsg("txg %llu condensing livelist of %s (id %llu), bpobj %llu " | |
2701 | "(%llu blkptrs) and bpobj %llu (%llu blkptrs) -> bpobj %llu " | |
8e739b2c RE |
2702 | "(%llu blkptrs)", (u_longlong_t)tx->tx_txg, dsname, |
2703 | (u_longlong_t)ds->ds_object, (u_longlong_t)first_obj, | |
2704 | (u_longlong_t)cur_first_size, (u_longlong_t)next_obj, | |
2705 | (u_longlong_t)cur_next_size, | |
2706 | (u_longlong_t)first->dle_bpobj.bpo_object, | |
2707 | (u_longlong_t)first->dle_bpobj.bpo_phys->bpo_num_blkptrs); | |
37f03da8 SH |
2708 | out: |
2709 | dmu_buf_rele(ds->ds_dbuf, spa); | |
2710 | spa->spa_to_condense.ds = NULL; | |
2711 | bplist_clear(&lca->to_keep); | |
2712 | bplist_destroy(&lca->to_keep); | |
2713 | kmem_free(lca, sizeof (livelist_condense_arg_t)); | |
2714 | spa->spa_to_condense.syncing = B_FALSE; | |
2715 | } | |
2716 | ||
65c7cc49 | 2717 | static void |
37f03da8 SH |
2718 | spa_livelist_condense_cb(void *arg, zthr_t *t) |
2719 | { | |
2720 | while (zfs_livelist_condense_zthr_pause && | |
2721 | !(zthr_has_waiters(t) || zthr_iscancelled(t))) | |
2722 | delay(1); | |
2723 | ||
2724 | spa_t *spa = arg; | |
2725 | dsl_deadlist_entry_t *first = spa->spa_to_condense.first; | |
2726 | dsl_deadlist_entry_t *next = spa->spa_to_condense.next; | |
2727 | uint64_t first_size, next_size; | |
2728 | ||
2729 | livelist_condense_arg_t *lca = | |
2730 | kmem_alloc(sizeof (livelist_condense_arg_t), KM_SLEEP); | |
2731 | bplist_create(&lca->to_keep); | |
2732 | ||
2733 | /* | |
2734 | * Process the livelists (matching FREEs and ALLOCs) in open context | |
2735 | * so we have minimal work in syncing context to condense. | |
2736 | * | |
2737 | * We save bpobj sizes (first_size and next_size) to use later in | |
2738 | * syncing context to determine if entries were added to these sublists | |
2739 | * while in open context. This is possible because the clone is still | |
2740 | * active and open for normal writes and we want to make sure the new, | |
2741 | * unprocessed blockpointers are inserted into the livelist normally. | |
2742 | * | |
2743 | * Note that dsl_process_sub_livelist() both stores the size number of | |
2744 | * blockpointers and iterates over them while the bpobj's lock held, so | |
2745 | * the sizes returned to us are consistent which what was actually | |
2746 | * processed. | |
2747 | */ | |
2748 | int err = dsl_process_sub_livelist(&first->dle_bpobj, &lca->to_keep, t, | |
2749 | &first_size); | |
2750 | if (err == 0) | |
2751 | err = dsl_process_sub_livelist(&next->dle_bpobj, &lca->to_keep, | |
2752 | t, &next_size); | |
2753 | ||
2754 | if (err == 0) { | |
2755 | while (zfs_livelist_condense_sync_pause && | |
2756 | !(zthr_has_waiters(t) || zthr_iscancelled(t))) | |
2757 | delay(1); | |
2758 | ||
2759 | dmu_tx_t *tx = dmu_tx_create_dd(spa_get_dsl(spa)->dp_mos_dir); | |
2760 | dmu_tx_mark_netfree(tx); | |
2761 | dmu_tx_hold_space(tx, 1); | |
2762 | err = dmu_tx_assign(tx, TXG_NOWAIT | TXG_NOTHROTTLE); | |
2763 | if (err == 0) { | |
2764 | /* | |
2765 | * Prevent the condense zthr restarting before | |
2766 | * the synctask completes. | |
2767 | */ | |
2768 | spa->spa_to_condense.syncing = B_TRUE; | |
2769 | lca->spa = spa; | |
2770 | lca->first_size = first_size; | |
2771 | lca->next_size = next_size; | |
2772 | dsl_sync_task_nowait(spa_get_dsl(spa), | |
38080324 | 2773 | spa_livelist_condense_sync, lca, tx); |
37f03da8 SH |
2774 | dmu_tx_commit(tx); |
2775 | return; | |
2776 | } | |
2777 | } | |
2778 | /* | |
2779 | * Condensing can not continue: either it was externally stopped or | |
2780 | * we were unable to assign to a tx because the pool has run out of | |
2781 | * space. In the second case, we'll just end up trying to condense | |
2782 | * again in a later txg. | |
2783 | */ | |
2784 | ASSERT(err != 0); | |
2785 | bplist_clear(&lca->to_keep); | |
2786 | bplist_destroy(&lca->to_keep); | |
2787 | kmem_free(lca, sizeof (livelist_condense_arg_t)); | |
2788 | dmu_buf_rele(spa->spa_to_condense.ds->ds_dbuf, spa); | |
2789 | spa->spa_to_condense.ds = NULL; | |
2790 | if (err == EINTR) | |
2791 | zfs_livelist_condense_zthr_cancel++; | |
2792 | } | |
2793 | ||
2794 | /* ARGSUSED */ | |
2795 | /* | |
2796 | * Check that there is something to condense but that a condense is not | |
2797 | * already in progress and that condensing has not been cancelled. | |
2798 | */ | |
2799 | static boolean_t | |
2800 | spa_livelist_condense_cb_check(void *arg, zthr_t *z) | |
2801 | { | |
2802 | spa_t *spa = arg; | |
2803 | if ((spa->spa_to_condense.ds != NULL) && | |
2804 | (spa->spa_to_condense.syncing == B_FALSE) && | |
2805 | (spa->spa_to_condense.cancelled == B_FALSE)) { | |
2806 | return (B_TRUE); | |
2807 | } | |
2808 | return (B_FALSE); | |
2809 | } | |
2810 | ||
65c7cc49 | 2811 | static void |
37f03da8 SH |
2812 | spa_start_livelist_condensing_thread(spa_t *spa) |
2813 | { | |
2814 | spa->spa_to_condense.ds = NULL; | |
2815 | spa->spa_to_condense.first = NULL; | |
2816 | spa->spa_to_condense.next = NULL; | |
2817 | spa->spa_to_condense.syncing = B_FALSE; | |
2818 | spa->spa_to_condense.cancelled = B_FALSE; | |
2819 | ||
2820 | ASSERT3P(spa->spa_livelist_condense_zthr, ==, NULL); | |
843e9ca2 SD |
2821 | spa->spa_livelist_condense_zthr = |
2822 | zthr_create("z_livelist_condense", | |
2823 | spa_livelist_condense_cb_check, | |
6bc61d22 | 2824 | spa_livelist_condense_cb, spa, minclsyspri); |
37f03da8 SH |
2825 | } |
2826 | ||
9d5b5245 SD |
2827 | static void |
2828 | spa_spawn_aux_threads(spa_t *spa) | |
2829 | { | |
2830 | ASSERT(spa_writeable(spa)); | |
2831 | ||
2832 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); | |
2833 | ||
2834 | spa_start_indirect_condensing_thread(spa); | |
37f03da8 SH |
2835 | spa_start_livelist_destroy_thread(spa); |
2836 | spa_start_livelist_condensing_thread(spa); | |
d2734cce SD |
2837 | |
2838 | ASSERT3P(spa->spa_checkpoint_discard_zthr, ==, NULL); | |
2839 | spa->spa_checkpoint_discard_zthr = | |
843e9ca2 SD |
2840 | zthr_create("z_checkpoint_discard", |
2841 | spa_checkpoint_discard_thread_check, | |
6bc61d22 | 2842 | spa_checkpoint_discard_thread, spa, minclsyspri); |
9d5b5245 SD |
2843 | } |
2844 | ||
428870ff BB |
2845 | /* |
2846 | * Fix up config after a partly-completed split. This is done with the | |
2847 | * ZPOOL_CONFIG_SPLIT nvlist. Both the splitting pool and the split-off | |
2848 | * pool have that entry in their config, but only the splitting one contains | |
2849 | * a list of all the guids of the vdevs that are being split off. | |
2850 | * | |
2851 | * This function determines what to do with that list: either rejoin | |
2852 | * all the disks to the pool, or complete the splitting process. To attempt | |
2853 | * the rejoin, each disk that is offlined is marked online again, and | |
2854 | * we do a reopen() call. If the vdev label for every disk that was | |
2855 | * marked online indicates it was successfully split off (VDEV_AUX_SPLIT_POOL) | |
2856 | * then we call vdev_split() on each disk, and complete the split. | |
2857 | * | |
2858 | * Otherwise we leave the config alone, with all the vdevs in place in | |
2859 | * the original pool. | |
2860 | */ | |
2861 | static void | |
2862 | spa_try_repair(spa_t *spa, nvlist_t *config) | |
2863 | { | |
2864 | uint_t extracted; | |
2865 | uint64_t *glist; | |
2866 | uint_t i, gcount; | |
2867 | nvlist_t *nvl; | |
2868 | vdev_t **vd; | |
2869 | boolean_t attempt_reopen; | |
2870 | ||
2871 | if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_SPLIT, &nvl) != 0) | |
2872 | return; | |
2873 | ||
2874 | /* check that the config is complete */ | |
2875 | if (nvlist_lookup_uint64_array(nvl, ZPOOL_CONFIG_SPLIT_LIST, | |
2876 | &glist, &gcount) != 0) | |
2877 | return; | |
2878 | ||
79c76d5b | 2879 | vd = kmem_zalloc(gcount * sizeof (vdev_t *), KM_SLEEP); |
428870ff BB |
2880 | |
2881 | /* attempt to online all the vdevs & validate */ | |
2882 | attempt_reopen = B_TRUE; | |
2883 | for (i = 0; i < gcount; i++) { | |
2884 | if (glist[i] == 0) /* vdev is hole */ | |
2885 | continue; | |
2886 | ||
2887 | vd[i] = spa_lookup_by_guid(spa, glist[i], B_FALSE); | |
2888 | if (vd[i] == NULL) { | |
2889 | /* | |
2890 | * Don't bother attempting to reopen the disks; | |
2891 | * just do the split. | |
2892 | */ | |
2893 | attempt_reopen = B_FALSE; | |
2894 | } else { | |
2895 | /* attempt to re-online it */ | |
2896 | vd[i]->vdev_offline = B_FALSE; | |
2897 | } | |
2898 | } | |
2899 | ||
2900 | if (attempt_reopen) { | |
2901 | vdev_reopen(spa->spa_root_vdev); | |
2902 | ||
2903 | /* check each device to see what state it's in */ | |
2904 | for (extracted = 0, i = 0; i < gcount; i++) { | |
2905 | if (vd[i] != NULL && | |
2906 | vd[i]->vdev_stat.vs_aux != VDEV_AUX_SPLIT_POOL) | |
2907 | break; | |
2908 | ++extracted; | |
2909 | } | |
2910 | } | |
2911 | ||
2912 | /* | |
2913 | * If every disk has been moved to the new pool, or if we never | |
2914 | * even attempted to look at them, then we split them off for | |
2915 | * good. | |
2916 | */ | |
2917 | if (!attempt_reopen || gcount == extracted) { | |
2918 | for (i = 0; i < gcount; i++) | |
2919 | if (vd[i] != NULL) | |
2920 | vdev_split(vd[i]); | |
2921 | vdev_reopen(spa->spa_root_vdev); | |
2922 | } | |
2923 | ||
2924 | kmem_free(vd, gcount * sizeof (vdev_t *)); | |
2925 | } | |
2926 | ||
2927 | static int | |
6cb8e530 | 2928 | spa_load(spa_t *spa, spa_load_state_t state, spa_import_type_t type) |
428870ff | 2929 | { |
428870ff BB |
2930 | char *ereport = FM_EREPORT_ZFS_POOL; |
2931 | int error; | |
428870ff | 2932 | |
6cb8e530 | 2933 | spa->spa_load_state = state; |
ca95f70d OF |
2934 | (void) spa_import_progress_set_state(spa_guid(spa), |
2935 | spa_load_state(spa)); | |
9ae529ec | 2936 | |
6cb8e530 | 2937 | gethrestime(&spa->spa_loaded_ts); |
d2734cce | 2938 | error = spa_load_impl(spa, type, &ereport); |
428870ff | 2939 | |
0c66c32d JG |
2940 | /* |
2941 | * Don't count references from objsets that are already closed | |
2942 | * and are making their way through the eviction process. | |
2943 | */ | |
2944 | spa_evicting_os_wait(spa); | |
424fd7c3 | 2945 | spa->spa_minref = zfs_refcount_count(&spa->spa_refcount); |
572e2857 BB |
2946 | if (error) { |
2947 | if (error != EEXIST) { | |
2948 | spa->spa_loaded_ts.tv_sec = 0; | |
2949 | spa->spa_loaded_ts.tv_nsec = 0; | |
2950 | } | |
2951 | if (error != EBADF) { | |
1144586b | 2952 | (void) zfs_ereport_post(ereport, spa, |
4f072827 | 2953 | NULL, NULL, NULL, 0); |
572e2857 BB |
2954 | } |
2955 | } | |
428870ff BB |
2956 | spa->spa_load_state = error ? SPA_LOAD_ERROR : SPA_LOAD_NONE; |
2957 | spa->spa_ena = 0; | |
2958 | ||
ca95f70d OF |
2959 | (void) spa_import_progress_set_state(spa_guid(spa), |
2960 | spa_load_state(spa)); | |
2961 | ||
428870ff BB |
2962 | return (error); |
2963 | } | |
2964 | ||
33cf67cd | 2965 | #ifdef ZFS_DEBUG |
e0ab3ab5 JS |
2966 | /* |
2967 | * Count the number of per-vdev ZAPs associated with all of the vdevs in the | |
2968 | * vdev tree rooted in the given vd, and ensure that each ZAP is present in the | |
2969 | * spa's per-vdev ZAP list. | |
2970 | */ | |
2971 | static uint64_t | |
2972 | vdev_count_verify_zaps(vdev_t *vd) | |
2973 | { | |
2974 | spa_t *spa = vd->vdev_spa; | |
2975 | uint64_t total = 0; | |
e0ab3ab5 JS |
2976 | |
2977 | if (vd->vdev_top_zap != 0) { | |
2978 | total++; | |
2979 | ASSERT0(zap_lookup_int(spa->spa_meta_objset, | |
2980 | spa->spa_all_vdev_zaps, vd->vdev_top_zap)); | |
2981 | } | |
2982 | if (vd->vdev_leaf_zap != 0) { | |
2983 | total++; | |
2984 | ASSERT0(zap_lookup_int(spa->spa_meta_objset, | |
2985 | spa->spa_all_vdev_zaps, vd->vdev_leaf_zap)); | |
2986 | } | |
2987 | ||
1c27024e | 2988 | for (uint64_t i = 0; i < vd->vdev_children; i++) { |
e0ab3ab5 JS |
2989 | total += vdev_count_verify_zaps(vd->vdev_child[i]); |
2990 | } | |
2991 | ||
2992 | return (total); | |
2993 | } | |
33cf67cd | 2994 | #endif |
e0ab3ab5 | 2995 | |
379ca9cf OF |
2996 | /* |
2997 | * Determine whether the activity check is required. | |
2998 | */ | |
2999 | static boolean_t | |
bbffb59e BB |
3000 | spa_activity_check_required(spa_t *spa, uberblock_t *ub, nvlist_t *label, |
3001 | nvlist_t *config) | |
379ca9cf OF |
3002 | { |
3003 | uint64_t state = 0; | |
3004 | uint64_t hostid = 0; | |
3005 | uint64_t tryconfig_txg = 0; | |
3006 | uint64_t tryconfig_timestamp = 0; | |
060f0226 | 3007 | uint16_t tryconfig_mmp_seq = 0; |
379ca9cf OF |
3008 | nvlist_t *nvinfo; |
3009 | ||
3010 | if (nvlist_exists(config, ZPOOL_CONFIG_LOAD_INFO)) { | |
3011 | nvinfo = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO); | |
3012 | (void) nvlist_lookup_uint64(nvinfo, ZPOOL_CONFIG_MMP_TXG, | |
3013 | &tryconfig_txg); | |
3014 | (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_TIMESTAMP, | |
3015 | &tryconfig_timestamp); | |
060f0226 OF |
3016 | (void) nvlist_lookup_uint16(nvinfo, ZPOOL_CONFIG_MMP_SEQ, |
3017 | &tryconfig_mmp_seq); | |
379ca9cf OF |
3018 | } |
3019 | ||
3020 | (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE, &state); | |
379ca9cf OF |
3021 | |
3022 | /* | |
3023 | * Disable the MMP activity check - This is used by zdb which | |
3024 | * is intended to be used on potentially active pools. | |
3025 | */ | |
3026 | if (spa->spa_import_flags & ZFS_IMPORT_SKIP_MMP) | |
3027 | return (B_FALSE); | |
3028 | ||
3029 | /* | |
3030 | * Skip the activity check when the MMP feature is disabled. | |
3031 | */ | |
3032 | if (ub->ub_mmp_magic == MMP_MAGIC && ub->ub_mmp_delay == 0) | |
3033 | return (B_FALSE); | |
ca95f70d | 3034 | |
379ca9cf | 3035 | /* |
060f0226 OF |
3036 | * If the tryconfig_ values are nonzero, they are the results of an |
3037 | * earlier tryimport. If they all match the uberblock we just found, | |
3038 | * then the pool has not changed and we return false so we do not test | |
3039 | * a second time. | |
379ca9cf OF |
3040 | */ |
3041 | if (tryconfig_txg && tryconfig_txg == ub->ub_txg && | |
060f0226 OF |
3042 | tryconfig_timestamp && tryconfig_timestamp == ub->ub_timestamp && |
3043 | tryconfig_mmp_seq && tryconfig_mmp_seq == | |
3044 | (MMP_SEQ_VALID(ub) ? MMP_SEQ(ub) : 0)) | |
379ca9cf OF |
3045 | return (B_FALSE); |
3046 | ||
3047 | /* | |
3048 | * Allow the activity check to be skipped when importing the pool | |
bbffb59e BB |
3049 | * on the same host which last imported it. Since the hostid from |
3050 | * configuration may be stale use the one read from the label. | |
379ca9cf | 3051 | */ |
bbffb59e BB |
3052 | if (nvlist_exists(label, ZPOOL_CONFIG_HOSTID)) |
3053 | hostid = fnvlist_lookup_uint64(label, ZPOOL_CONFIG_HOSTID); | |
3054 | ||
25f06d67 | 3055 | if (hostid == spa_get_hostid(spa)) |
379ca9cf OF |
3056 | return (B_FALSE); |
3057 | ||
3058 | /* | |
3059 | * Skip the activity test when the pool was cleanly exported. | |
3060 | */ | |
3061 | if (state != POOL_STATE_ACTIVE) | |
3062 | return (B_FALSE); | |
3063 | ||
3064 | return (B_TRUE); | |
3065 | } | |
3066 | ||
060f0226 OF |
3067 | /* |
3068 | * Nanoseconds the activity check must watch for changes on-disk. | |
3069 | */ | |
3070 | static uint64_t | |
3071 | spa_activity_check_duration(spa_t *spa, uberblock_t *ub) | |
3072 | { | |
3073 | uint64_t import_intervals = MAX(zfs_multihost_import_intervals, 1); | |
3074 | uint64_t multihost_interval = MSEC2NSEC( | |
3075 | MMP_INTERVAL_OK(zfs_multihost_interval)); | |
3076 | uint64_t import_delay = MAX(NANOSEC, import_intervals * | |
3077 | multihost_interval); | |
3078 | ||
3079 | /* | |
3080 | * Local tunables determine a minimum duration except for the case | |
3081 | * where we know when the remote host will suspend the pool if MMP | |
3082 | * writes do not land. | |
3083 | * | |
3084 | * See Big Theory comment at the top of mmp.c for the reasoning behind | |
3085 | * these cases and times. | |
3086 | */ | |
3087 | ||
3088 | ASSERT(MMP_IMPORT_SAFETY_FACTOR >= 100); | |
3089 | ||
3090 | if (MMP_INTERVAL_VALID(ub) && MMP_FAIL_INT_VALID(ub) && | |
3091 | MMP_FAIL_INT(ub) > 0) { | |
3092 | ||
3093 | /* MMP on remote host will suspend pool after failed writes */ | |
3094 | import_delay = MMP_FAIL_INT(ub) * MSEC2NSEC(MMP_INTERVAL(ub)) * | |
3095 | MMP_IMPORT_SAFETY_FACTOR / 100; | |
3096 | ||
3097 | zfs_dbgmsg("fail_intvals>0 import_delay=%llu ub_mmp " | |
3098 | "mmp_fails=%llu ub_mmp mmp_interval=%llu " | |
8e739b2c RE |
3099 | "import_intervals=%llu", (u_longlong_t)import_delay, |
3100 | (u_longlong_t)MMP_FAIL_INT(ub), | |
3101 | (u_longlong_t)MMP_INTERVAL(ub), | |
3102 | (u_longlong_t)import_intervals); | |
060f0226 OF |
3103 | |
3104 | } else if (MMP_INTERVAL_VALID(ub) && MMP_FAIL_INT_VALID(ub) && | |
3105 | MMP_FAIL_INT(ub) == 0) { | |
3106 | ||
3107 | /* MMP on remote host will never suspend pool */ | |
3108 | import_delay = MAX(import_delay, (MSEC2NSEC(MMP_INTERVAL(ub)) + | |
3109 | ub->ub_mmp_delay) * import_intervals); | |
3110 | ||
3111 | zfs_dbgmsg("fail_intvals=0 import_delay=%llu ub_mmp " | |
3112 | "mmp_interval=%llu ub_mmp_delay=%llu " | |
8e739b2c RE |
3113 | "import_intervals=%llu", (u_longlong_t)import_delay, |
3114 | (u_longlong_t)MMP_INTERVAL(ub), | |
3115 | (u_longlong_t)ub->ub_mmp_delay, | |
3116 | (u_longlong_t)import_intervals); | |
060f0226 OF |
3117 | |
3118 | } else if (MMP_VALID(ub)) { | |
3119 | /* | |
e1cfd73f | 3120 | * zfs-0.7 compatibility case |
060f0226 OF |
3121 | */ |
3122 | ||
3123 | import_delay = MAX(import_delay, (multihost_interval + | |
3124 | ub->ub_mmp_delay) * import_intervals); | |
3125 | ||
3126 | zfs_dbgmsg("import_delay=%llu ub_mmp_delay=%llu " | |
8e739b2c RE |
3127 | "import_intervals=%llu leaves=%u", |
3128 | (u_longlong_t)import_delay, | |
3129 | (u_longlong_t)ub->ub_mmp_delay, | |
3130 | (u_longlong_t)import_intervals, | |
060f0226 OF |
3131 | vdev_count_leaves(spa)); |
3132 | } else { | |
3133 | /* Using local tunings is the only reasonable option */ | |
3134 | zfs_dbgmsg("pool last imported on non-MMP aware " | |
3135 | "host using import_delay=%llu multihost_interval=%llu " | |
8e739b2c RE |
3136 | "import_intervals=%llu", (u_longlong_t)import_delay, |
3137 | (u_longlong_t)multihost_interval, | |
3138 | (u_longlong_t)import_intervals); | |
060f0226 OF |
3139 | } |
3140 | ||
3141 | return (import_delay); | |
3142 | } | |
3143 | ||
379ca9cf OF |
3144 | /* |
3145 | * Perform the import activity check. If the user canceled the import or | |
3146 | * we detected activity then fail. | |
3147 | */ | |
3148 | static int | |
3149 | spa_activity_check(spa_t *spa, uberblock_t *ub, nvlist_t *config) | |
3150 | { | |
379ca9cf OF |
3151 | uint64_t txg = ub->ub_txg; |
3152 | uint64_t timestamp = ub->ub_timestamp; | |
060f0226 OF |
3153 | uint64_t mmp_config = ub->ub_mmp_config; |
3154 | uint16_t mmp_seq = MMP_SEQ_VALID(ub) ? MMP_SEQ(ub) : 0; | |
3155 | uint64_t import_delay; | |
379ca9cf OF |
3156 | hrtime_t import_expire; |
3157 | nvlist_t *mmp_label = NULL; | |
3158 | vdev_t *rvd = spa->spa_root_vdev; | |
3159 | kcondvar_t cv; | |
3160 | kmutex_t mtx; | |
3161 | int error = 0; | |
3162 | ||
3163 | cv_init(&cv, NULL, CV_DEFAULT, NULL); | |
3164 | mutex_init(&mtx, NULL, MUTEX_DEFAULT, NULL); | |
3165 | mutex_enter(&mtx); | |
3166 | ||
3167 | /* | |
3168 | * If ZPOOL_CONFIG_MMP_TXG is present an activity check was performed | |
3169 | * during the earlier tryimport. If the txg recorded there is 0 then | |
3170 | * the pool is known to be active on another host. | |
3171 | * | |
060f0226 | 3172 | * Otherwise, the pool might be in use on another host. Check for |
379ca9cf OF |
3173 | * changes in the uberblocks on disk if necessary. |
3174 | */ | |
3175 | if (nvlist_exists(config, ZPOOL_CONFIG_LOAD_INFO)) { | |
3176 | nvlist_t *nvinfo = fnvlist_lookup_nvlist(config, | |
3177 | ZPOOL_CONFIG_LOAD_INFO); | |
3178 | ||
3179 | if (nvlist_exists(nvinfo, ZPOOL_CONFIG_MMP_TXG) && | |
3180 | fnvlist_lookup_uint64(nvinfo, ZPOOL_CONFIG_MMP_TXG) == 0) { | |
3181 | vdev_uberblock_load(rvd, ub, &mmp_label); | |
3182 | error = SET_ERROR(EREMOTEIO); | |
3183 | goto out; | |
3184 | } | |
3185 | } | |
3186 | ||
060f0226 | 3187 | import_delay = spa_activity_check_duration(spa, ub); |
533ea041 | 3188 | |
379ca9cf | 3189 | /* Add a small random factor in case of simultaneous imports (0-25%) */ |
29274c9f | 3190 | import_delay += import_delay * random_in_range(250) / 1000; |
ca95f70d OF |
3191 | |
3192 | import_expire = gethrtime() + import_delay; | |
379ca9cf OF |
3193 | |
3194 | while (gethrtime() < import_expire) { | |
ca95f70d OF |
3195 | (void) spa_import_progress_set_mmp_check(spa_guid(spa), |
3196 | NSEC2SEC(import_expire - gethrtime())); | |
3197 | ||
379ca9cf OF |
3198 | vdev_uberblock_load(rvd, ub, &mmp_label); |
3199 | ||
060f0226 OF |
3200 | if (txg != ub->ub_txg || timestamp != ub->ub_timestamp || |
3201 | mmp_seq != (MMP_SEQ_VALID(ub) ? MMP_SEQ(ub) : 0)) { | |
3202 | zfs_dbgmsg("multihost activity detected " | |
3203 | "txg %llu ub_txg %llu " | |
3204 | "timestamp %llu ub_timestamp %llu " | |
3205 | "mmp_config %#llx ub_mmp_config %#llx", | |
8e739b2c RE |
3206 | (u_longlong_t)txg, (u_longlong_t)ub->ub_txg, |
3207 | (u_longlong_t)timestamp, | |
3208 | (u_longlong_t)ub->ub_timestamp, | |
3209 | (u_longlong_t)mmp_config, | |
3210 | (u_longlong_t)ub->ub_mmp_config); | |
060f0226 | 3211 | |
379ca9cf OF |
3212 | error = SET_ERROR(EREMOTEIO); |
3213 | break; | |
3214 | } | |
3215 | ||
3216 | if (mmp_label) { | |
3217 | nvlist_free(mmp_label); | |
3218 | mmp_label = NULL; | |
3219 | } | |
3220 | ||
3221 | error = cv_timedwait_sig(&cv, &mtx, ddi_get_lbolt() + hz); | |
3222 | if (error != -1) { | |
3223 | error = SET_ERROR(EINTR); | |
3224 | break; | |
3225 | } | |
3226 | error = 0; | |
3227 | } | |
3228 | ||
3229 | out: | |
3230 | mutex_exit(&mtx); | |
3231 | mutex_destroy(&mtx); | |
3232 | cv_destroy(&cv); | |
3233 | ||
3234 | /* | |
3235 | * If the pool is determined to be active store the status in the | |
3236 | * spa->spa_load_info nvlist. If the remote hostname or hostid are | |
3237 | * available from configuration read from disk store them as well. | |
3238 | * This allows 'zpool import' to generate a more useful message. | |
3239 | * | |
3240 | * ZPOOL_CONFIG_MMP_STATE - observed pool status (mandatory) | |
3241 | * ZPOOL_CONFIG_MMP_HOSTNAME - hostname from the active pool | |
3242 | * ZPOOL_CONFIG_MMP_HOSTID - hostid from the active pool | |
3243 | */ | |
3244 | if (error == EREMOTEIO) { | |
3245 | char *hostname = "<unknown>"; | |
3246 | uint64_t hostid = 0; | |
3247 | ||
3248 | if (mmp_label) { | |
3249 | if (nvlist_exists(mmp_label, ZPOOL_CONFIG_HOSTNAME)) { | |
3250 | hostname = fnvlist_lookup_string(mmp_label, | |
3251 | ZPOOL_CONFIG_HOSTNAME); | |
3252 | fnvlist_add_string(spa->spa_load_info, | |
3253 | ZPOOL_CONFIG_MMP_HOSTNAME, hostname); | |
3254 | } | |
3255 | ||
3256 | if (nvlist_exists(mmp_label, ZPOOL_CONFIG_HOSTID)) { | |
3257 | hostid = fnvlist_lookup_uint64(mmp_label, | |
3258 | ZPOOL_CONFIG_HOSTID); | |
3259 | fnvlist_add_uint64(spa->spa_load_info, | |
3260 | ZPOOL_CONFIG_MMP_HOSTID, hostid); | |
3261 | } | |
3262 | } | |
3263 | ||
3264 | fnvlist_add_uint64(spa->spa_load_info, | |
3265 | ZPOOL_CONFIG_MMP_STATE, MMP_STATE_ACTIVE); | |
3266 | fnvlist_add_uint64(spa->spa_load_info, | |
3267 | ZPOOL_CONFIG_MMP_TXG, 0); | |
3268 | ||
3269 | error = spa_vdev_err(rvd, VDEV_AUX_ACTIVE, EREMOTEIO); | |
3270 | } | |
3271 | ||
3272 | if (mmp_label) | |
3273 | nvlist_free(mmp_label); | |
3274 | ||
3275 | return (error); | |
3276 | } | |
3277 | ||
9eb7b46e | 3278 | static int |
6cb8e530 PZ |
3279 | spa_verify_host(spa_t *spa, nvlist_t *mos_config) |
3280 | { | |
3281 | uint64_t hostid; | |
3282 | char *hostname; | |
3283 | uint64_t myhostid = 0; | |
3284 | ||
3285 | if (!spa_is_root(spa) && nvlist_lookup_uint64(mos_config, | |
3286 | ZPOOL_CONFIG_HOSTID, &hostid) == 0) { | |
3287 | hostname = fnvlist_lookup_string(mos_config, | |
3288 | ZPOOL_CONFIG_HOSTNAME); | |
3289 | ||
3290 | myhostid = zone_get_hostid(NULL); | |
3291 | ||
3292 | if (hostid != 0 && myhostid != 0 && hostid != myhostid) { | |
3293 | cmn_err(CE_WARN, "pool '%s' could not be " | |
3294 | "loaded as it was last accessed by " | |
3295 | "another system (host: %s hostid: 0x%llx). " | |
a2f944a1 RM |
3296 | "See: https://openzfs.github.io/openzfs-docs/msg/" |
3297 | "ZFS-8000-EY", | |
6cb8e530 PZ |
3298 | spa_name(spa), hostname, (u_longlong_t)hostid); |
3299 | spa_load_failed(spa, "hostid verification failed: pool " | |
3300 | "last accessed by host: %s (hostid: 0x%llx)", | |
3301 | hostname, (u_longlong_t)hostid); | |
3302 | return (SET_ERROR(EBADF)); | |
3303 | } | |
3304 | } | |
3305 | ||
3306 | return (0); | |
3307 | } | |
3308 | ||
3309 | static int | |
3310 | spa_ld_parse_config(spa_t *spa, spa_import_type_t type) | |
428870ff BB |
3311 | { |
3312 | int error = 0; | |
6cb8e530 | 3313 | nvlist_t *nvtree, *nvl, *config = spa->spa_config; |
1c27024e | 3314 | int parse; |
9eb7b46e | 3315 | vdev_t *rvd; |
6cb8e530 PZ |
3316 | uint64_t pool_guid; |
3317 | char *comment; | |
658fb802 | 3318 | char *compatibility; |
6cb8e530 PZ |
3319 | |
3320 | /* | |
3321 | * Versioning wasn't explicitly added to the label until later, so if | |
3322 | * it's not present treat it as the initial version. | |
3323 | */ | |
3324 | if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION, | |
3325 | &spa->spa_ubsync.ub_version) != 0) | |
3326 | spa->spa_ubsync.ub_version = SPA_VERSION_INITIAL; | |
3327 | ||
3328 | if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &pool_guid)) { | |
3329 | spa_load_failed(spa, "invalid config provided: '%s' missing", | |
3330 | ZPOOL_CONFIG_POOL_GUID); | |
3331 | return (SET_ERROR(EINVAL)); | |
3332 | } | |
3333 | ||
d2734cce SD |
3334 | /* |
3335 | * If we are doing an import, ensure that the pool is not already | |
3336 | * imported by checking if its pool guid already exists in the | |
3337 | * spa namespace. | |
3338 | * | |
3339 | * The only case that we allow an already imported pool to be | |
3340 | * imported again, is when the pool is checkpointed and we want to | |
3341 | * look at its checkpointed state from userland tools like zdb. | |
3342 | */ | |
3343 | #ifdef _KERNEL | |
3344 | if ((spa->spa_load_state == SPA_LOAD_IMPORT || | |
3345 | spa->spa_load_state == SPA_LOAD_TRYIMPORT) && | |
3346 | spa_guid_exists(pool_guid, 0)) { | |
3347 | #else | |
3348 | if ((spa->spa_load_state == SPA_LOAD_IMPORT || | |
3349 | spa->spa_load_state == SPA_LOAD_TRYIMPORT) && | |
3350 | spa_guid_exists(pool_guid, 0) && | |
3351 | !spa_importing_readonly_checkpoint(spa)) { | |
3352 | #endif | |
6cb8e530 PZ |
3353 | spa_load_failed(spa, "a pool with guid %llu is already open", |
3354 | (u_longlong_t)pool_guid); | |
3355 | return (SET_ERROR(EEXIST)); | |
3356 | } | |
3357 | ||
3358 | spa->spa_config_guid = pool_guid; | |
3359 | ||
3360 | nvlist_free(spa->spa_load_info); | |
3361 | spa->spa_load_info = fnvlist_alloc(); | |
3362 | ||
3363 | ASSERT(spa->spa_comment == NULL); | |
3364 | if (nvlist_lookup_string(config, ZPOOL_CONFIG_COMMENT, &comment) == 0) | |
3365 | spa->spa_comment = spa_strdup(comment); | |
3366 | ||
658fb802 CB |
3367 | ASSERT(spa->spa_compatibility == NULL); |
3368 | if (nvlist_lookup_string(config, ZPOOL_CONFIG_COMPATIBILITY, | |
3369 | &compatibility) == 0) | |
3370 | spa->spa_compatibility = spa_strdup(compatibility); | |
3371 | ||
6cb8e530 PZ |
3372 | (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG, |
3373 | &spa->spa_config_txg); | |
3374 | ||
3375 | if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_SPLIT, &nvl) == 0) | |
3376 | spa->spa_config_splitting = fnvlist_dup(nvl); | |
428870ff | 3377 | |
4a0ee12a PZ |
3378 | if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvtree)) { |
3379 | spa_load_failed(spa, "invalid config provided: '%s' missing", | |
3380 | ZPOOL_CONFIG_VDEV_TREE); | |
2e528b49 | 3381 | return (SET_ERROR(EINVAL)); |
4a0ee12a | 3382 | } |
428870ff | 3383 | |
428870ff BB |
3384 | /* |
3385 | * Create "The Godfather" zio to hold all async IOs | |
3386 | */ | |
e022864d MA |
3387 | spa->spa_async_zio_root = kmem_alloc(max_ncpus * sizeof (void *), |
3388 | KM_SLEEP); | |
1c27024e | 3389 | for (int i = 0; i < max_ncpus; i++) { |
e022864d MA |
3390 | spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL, |
3391 | ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | | |
3392 | ZIO_FLAG_GODFATHER); | |
3393 | } | |
428870ff BB |
3394 | |
3395 | /* | |
3396 | * Parse the configuration into a vdev tree. We explicitly set the | |
3397 | * value that will be returned by spa_version() since parsing the | |
3398 | * configuration requires knowing the version number. | |
3399 | */ | |
3400 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); | |
6cb8e530 PZ |
3401 | parse = (type == SPA_IMPORT_EXISTING ? |
3402 | VDEV_ALLOC_LOAD : VDEV_ALLOC_SPLIT); | |
9eb7b46e | 3403 | error = spa_config_parse(spa, &rvd, nvtree, NULL, 0, parse); |
428870ff BB |
3404 | spa_config_exit(spa, SCL_ALL, FTAG); |
3405 | ||
4a0ee12a PZ |
3406 | if (error != 0) { |
3407 | spa_load_failed(spa, "unable to parse config [error=%d]", | |
3408 | error); | |
428870ff | 3409 | return (error); |
4a0ee12a | 3410 | } |
428870ff BB |
3411 | |
3412 | ASSERT(spa->spa_root_vdev == rvd); | |
c3520e7f MA |
3413 | ASSERT3U(spa->spa_min_ashift, >=, SPA_MINBLOCKSHIFT); |
3414 | ASSERT3U(spa->spa_max_ashift, <=, SPA_MAXBLOCKSHIFT); | |
428870ff BB |
3415 | |
3416 | if (type != SPA_IMPORT_ASSEMBLE) { | |
3417 | ASSERT(spa_guid(spa) == pool_guid); | |
3418 | } | |
3419 | ||
9eb7b46e PZ |
3420 | return (0); |
3421 | } | |
3422 | ||
6cb8e530 PZ |
3423 | /* |
3424 | * Recursively open all vdevs in the vdev tree. This function is called twice: | |
3425 | * first with the untrusted config, then with the trusted config. | |
3426 | */ | |
9eb7b46e PZ |
3427 | static int |
3428 | spa_ld_open_vdevs(spa_t *spa) | |
3429 | { | |
3430 | int error = 0; | |
3431 | ||
6cb8e530 PZ |
3432 | /* |
3433 | * spa_missing_tvds_allowed defines how many top-level vdevs can be | |
3434 | * missing/unopenable for the root vdev to be still considered openable. | |
3435 | */ | |
3436 | if (spa->spa_trust_config) { | |
3437 | spa->spa_missing_tvds_allowed = zfs_max_missing_tvds; | |
3438 | } else if (spa->spa_config_source == SPA_CONFIG_SRC_CACHEFILE) { | |
3439 | spa->spa_missing_tvds_allowed = zfs_max_missing_tvds_cachefile; | |
3440 | } else if (spa->spa_config_source == SPA_CONFIG_SRC_SCAN) { | |
3441 | spa->spa_missing_tvds_allowed = zfs_max_missing_tvds_scan; | |
3442 | } else { | |
3443 | spa->spa_missing_tvds_allowed = 0; | |
3444 | } | |
3445 | ||
3446 | spa->spa_missing_tvds_allowed = | |
3447 | MAX(zfs_max_missing_tvds, spa->spa_missing_tvds_allowed); | |
3448 | ||
428870ff | 3449 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
9eb7b46e | 3450 | error = vdev_open(spa->spa_root_vdev); |
428870ff | 3451 | spa_config_exit(spa, SCL_ALL, FTAG); |
6cb8e530 PZ |
3452 | |
3453 | if (spa->spa_missing_tvds != 0) { | |
3454 | spa_load_note(spa, "vdev tree has %lld missing top-level " | |
3455 | "vdevs.", (u_longlong_t)spa->spa_missing_tvds); | |
da92d5cb | 3456 | if (spa->spa_trust_config && (spa->spa_mode & SPA_MODE_WRITE)) { |
6cb8e530 PZ |
3457 | /* |
3458 | * Although theoretically we could allow users to open | |
3459 | * incomplete pools in RW mode, we'd need to add a lot | |
3460 | * of extra logic (e.g. adjust pool space to account | |
3461 | * for missing vdevs). | |
3462 | * This limitation also prevents users from accidentally | |
3463 | * opening the pool in RW mode during data recovery and | |
3464 | * damaging it further. | |
3465 | */ | |
3466 | spa_load_note(spa, "pools with missing top-level " | |
3467 | "vdevs can only be opened in read-only mode."); | |
3468 | error = SET_ERROR(ENXIO); | |
3469 | } else { | |
3470 | spa_load_note(spa, "current settings allow for maximum " | |
3471 | "%lld missing top-level vdevs at this stage.", | |
3472 | (u_longlong_t)spa->spa_missing_tvds_allowed); | |
3473 | } | |
3474 | } | |
4a0ee12a PZ |
3475 | if (error != 0) { |
3476 | spa_load_failed(spa, "unable to open vdev tree [error=%d]", | |
3477 | error); | |
3478 | } | |
6cb8e530 PZ |
3479 | if (spa->spa_missing_tvds != 0 || error != 0) |
3480 | vdev_dbgmsg_print_tree(spa->spa_root_vdev, 2); | |
9eb7b46e PZ |
3481 | |
3482 | return (error); | |
3483 | } | |
3484 | ||
6cb8e530 PZ |
3485 | /* |
3486 | * We need to validate the vdev labels against the configuration that | |
3487 | * we have in hand. This function is called twice: first with an untrusted | |
3488 | * config, then with a trusted config. The validation is more strict when the | |
3489 | * config is trusted. | |
3490 | */ | |
9eb7b46e | 3491 | static int |
6cb8e530 | 3492 | spa_ld_validate_vdevs(spa_t *spa) |
9eb7b46e PZ |
3493 | { |
3494 | int error = 0; | |
3495 | vdev_t *rvd = spa->spa_root_vdev; | |
428870ff | 3496 | |
6cb8e530 PZ |
3497 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
3498 | error = vdev_validate(rvd); | |
3499 | spa_config_exit(spa, SCL_ALL, FTAG); | |
428870ff | 3500 | |
6cb8e530 PZ |
3501 | if (error != 0) { |
3502 | spa_load_failed(spa, "vdev_validate failed [error=%d]", error); | |
3503 | return (error); | |
3504 | } | |
428870ff | 3505 | |
6cb8e530 PZ |
3506 | if (rvd->vdev_state <= VDEV_STATE_CANT_OPEN) { |
3507 | spa_load_failed(spa, "cannot open vdev tree after invalidating " | |
3508 | "some vdevs"); | |
3509 | vdev_dbgmsg_print_tree(rvd, 2); | |
3510 | return (SET_ERROR(ENXIO)); | |
428870ff BB |
3511 | } |
3512 | ||
9eb7b46e PZ |
3513 | return (0); |
3514 | } | |
3515 | ||
d2734cce SD |
3516 | static void |
3517 | spa_ld_select_uberblock_done(spa_t *spa, uberblock_t *ub) | |
3518 | { | |
3519 | spa->spa_state = POOL_STATE_ACTIVE; | |
3520 | spa->spa_ubsync = spa->spa_uberblock; | |
3521 | spa->spa_verify_min_txg = spa->spa_extreme_rewind ? | |
3522 | TXG_INITIAL - 1 : spa_last_synced_txg(spa) - TXG_DEFER_SIZE - 1; | |
3523 | spa->spa_first_txg = spa->spa_last_ubsync_txg ? | |
3524 | spa->spa_last_ubsync_txg : spa_last_synced_txg(spa) + 1; | |
3525 | spa->spa_claim_max_txg = spa->spa_first_txg; | |
3526 | spa->spa_prev_software_version = ub->ub_software_version; | |
3527 | } | |
3528 | ||
9eb7b46e | 3529 | static int |
6cb8e530 | 3530 | spa_ld_select_uberblock(spa_t *spa, spa_import_type_t type) |
9eb7b46e PZ |
3531 | { |
3532 | vdev_t *rvd = spa->spa_root_vdev; | |
3533 | nvlist_t *label; | |
3534 | uberblock_t *ub = &spa->spa_uberblock; | |
9eb7b46e PZ |
3535 | boolean_t activity_check = B_FALSE; |
3536 | ||
d2734cce SD |
3537 | /* |
3538 | * If we are opening the checkpointed state of the pool by | |
3539 | * rewinding to it, at this point we will have written the | |
3540 | * checkpointed uberblock to the vdev labels, so searching | |
3541 | * the labels will find the right uberblock. However, if | |
3542 | * we are opening the checkpointed state read-only, we have | |
3543 | * not modified the labels. Therefore, we must ignore the | |
3544 | * labels and continue using the spa_uberblock that was set | |
3545 | * by spa_ld_checkpoint_rewind. | |
3546 | * | |
3547 | * Note that it would be fine to ignore the labels when | |
3548 | * rewinding (opening writeable) as well. However, if we | |
3549 | * crash just after writing the labels, we will end up | |
3550 | * searching the labels. Doing so in the common case means | |
3551 | * that this code path gets exercised normally, rather than | |
3552 | * just in the edge case. | |
3553 | */ | |
3554 | if (ub->ub_checkpoint_txg != 0 && | |
3555 | spa_importing_readonly_checkpoint(spa)) { | |
3556 | spa_ld_select_uberblock_done(spa, ub); | |
3557 | return (0); | |
3558 | } | |
3559 | ||
428870ff BB |
3560 | /* |
3561 | * Find the best uberblock. | |
3562 | */ | |
9ae529ec | 3563 | vdev_uberblock_load(rvd, ub, &label); |
428870ff BB |
3564 | |
3565 | /* | |
3566 | * If we weren't able to find a single valid uberblock, return failure. | |
3567 | */ | |
9ae529ec CS |
3568 | if (ub->ub_txg == 0) { |
3569 | nvlist_free(label); | |
4a0ee12a | 3570 | spa_load_failed(spa, "no valid uberblock found"); |
428870ff | 3571 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, ENXIO)); |
9ae529ec | 3572 | } |
428870ff | 3573 | |
ca95f70d OF |
3574 | if (spa->spa_load_max_txg != UINT64_MAX) { |
3575 | (void) spa_import_progress_set_max_txg(spa_guid(spa), | |
3576 | (u_longlong_t)spa->spa_load_max_txg); | |
3577 | } | |
4a0ee12a PZ |
3578 | spa_load_note(spa, "using uberblock with txg=%llu", |
3579 | (u_longlong_t)ub->ub_txg); | |
3580 | ||
3581 | ||
379ca9cf OF |
3582 | /* |
3583 | * For pools which have the multihost property on determine if the | |
3584 | * pool is truly inactive and can be safely imported. Prevent | |
3585 | * hosts which don't have a hostid set from importing the pool. | |
3586 | */ | |
6cb8e530 PZ |
3587 | activity_check = spa_activity_check_required(spa, ub, label, |
3588 | spa->spa_config); | |
379ca9cf | 3589 | if (activity_check) { |
379ca9cf | 3590 | if (ub->ub_mmp_magic == MMP_MAGIC && ub->ub_mmp_delay && |
25f06d67 | 3591 | spa_get_hostid(spa) == 0) { |
379ca9cf OF |
3592 | nvlist_free(label); |
3593 | fnvlist_add_uint64(spa->spa_load_info, | |
3594 | ZPOOL_CONFIG_MMP_STATE, MMP_STATE_NO_HOSTID); | |
3595 | return (spa_vdev_err(rvd, VDEV_AUX_ACTIVE, EREMOTEIO)); | |
3596 | } | |
3597 | ||
6cb8e530 | 3598 | int error = spa_activity_check(spa, ub, spa->spa_config); |
e889f0f5 OF |
3599 | if (error) { |
3600 | nvlist_free(label); | |
3601 | return (error); | |
3602 | } | |
3603 | ||
379ca9cf OF |
3604 | fnvlist_add_uint64(spa->spa_load_info, |
3605 | ZPOOL_CONFIG_MMP_STATE, MMP_STATE_INACTIVE); | |
3606 | fnvlist_add_uint64(spa->spa_load_info, | |
3607 | ZPOOL_CONFIG_MMP_TXG, ub->ub_txg); | |
060f0226 OF |
3608 | fnvlist_add_uint16(spa->spa_load_info, |
3609 | ZPOOL_CONFIG_MMP_SEQ, | |
3610 | (MMP_SEQ_VALID(ub) ? MMP_SEQ(ub) : 0)); | |
379ca9cf OF |
3611 | } |
3612 | ||
428870ff | 3613 | /* |
9ae529ec | 3614 | * If the pool has an unsupported version we can't open it. |
428870ff | 3615 | */ |
9ae529ec CS |
3616 | if (!SPA_VERSION_IS_SUPPORTED(ub->ub_version)) { |
3617 | nvlist_free(label); | |
4a0ee12a PZ |
3618 | spa_load_failed(spa, "version %llu is not supported", |
3619 | (u_longlong_t)ub->ub_version); | |
428870ff | 3620 | return (spa_vdev_err(rvd, VDEV_AUX_VERSION_NEWER, ENOTSUP)); |
9ae529ec CS |
3621 | } |
3622 | ||
3623 | if (ub->ub_version >= SPA_VERSION_FEATURES) { | |
3624 | nvlist_t *features; | |
3625 | ||
3626 | /* | |
3627 | * If we weren't able to find what's necessary for reading the | |
3628 | * MOS in the label, return failure. | |
3629 | */ | |
4a0ee12a PZ |
3630 | if (label == NULL) { |
3631 | spa_load_failed(spa, "label config unavailable"); | |
3632 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, | |
3633 | ENXIO)); | |
3634 | } | |
3635 | ||
3636 | if (nvlist_lookup_nvlist(label, ZPOOL_CONFIG_FEATURES_FOR_READ, | |
3637 | &features) != 0) { | |
9ae529ec | 3638 | nvlist_free(label); |
4a0ee12a PZ |
3639 | spa_load_failed(spa, "invalid label: '%s' missing", |
3640 | ZPOOL_CONFIG_FEATURES_FOR_READ); | |
9ae529ec CS |
3641 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, |
3642 | ENXIO)); | |
3643 | } | |
3644 | ||
3645 | /* | |
3646 | * Update our in-core representation with the definitive values | |
3647 | * from the label. | |
3648 | */ | |
3649 | nvlist_free(spa->spa_label_features); | |
3650 | VERIFY(nvlist_dup(features, &spa->spa_label_features, 0) == 0); | |
3651 | } | |
3652 | ||
3653 | nvlist_free(label); | |
3654 | ||
3655 | /* | |
3656 | * Look through entries in the label nvlist's features_for_read. If | |
3657 | * there is a feature listed there which we don't understand then we | |
3658 | * cannot open a pool. | |
3659 | */ | |
3660 | if (ub->ub_version >= SPA_VERSION_FEATURES) { | |
3661 | nvlist_t *unsup_feat; | |
9ae529ec CS |
3662 | |
3663 | VERIFY(nvlist_alloc(&unsup_feat, NV_UNIQUE_NAME, KM_SLEEP) == | |
3664 | 0); | |
3665 | ||
1c27024e DB |
3666 | for (nvpair_t *nvp = nvlist_next_nvpair(spa->spa_label_features, |
3667 | NULL); nvp != NULL; | |
9ae529ec CS |
3668 | nvp = nvlist_next_nvpair(spa->spa_label_features, nvp)) { |
3669 | if (!zfeature_is_supported(nvpair_name(nvp))) { | |
3670 | VERIFY(nvlist_add_string(unsup_feat, | |
3671 | nvpair_name(nvp), "") == 0); | |
3672 | } | |
3673 | } | |
3674 | ||
3675 | if (!nvlist_empty(unsup_feat)) { | |
3676 | VERIFY(nvlist_add_nvlist(spa->spa_load_info, | |
3677 | ZPOOL_CONFIG_UNSUP_FEAT, unsup_feat) == 0); | |
3678 | nvlist_free(unsup_feat); | |
4a0ee12a | 3679 | spa_load_failed(spa, "some features are unsupported"); |
9ae529ec CS |
3680 | return (spa_vdev_err(rvd, VDEV_AUX_UNSUP_FEAT, |
3681 | ENOTSUP)); | |
3682 | } | |
3683 | ||
3684 | nvlist_free(unsup_feat); | |
3685 | } | |
428870ff | 3686 | |
428870ff BB |
3687 | if (type != SPA_IMPORT_ASSEMBLE && spa->spa_config_splitting) { |
3688 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); | |
6cb8e530 | 3689 | spa_try_repair(spa, spa->spa_config); |
428870ff BB |
3690 | spa_config_exit(spa, SCL_ALL, FTAG); |
3691 | nvlist_free(spa->spa_config_splitting); | |
3692 | spa->spa_config_splitting = NULL; | |
3693 | } | |
3694 | ||
3695 | /* | |
3696 | * Initialize internal SPA structures. | |
3697 | */ | |
d2734cce | 3698 | spa_ld_select_uberblock_done(spa, ub); |
428870ff | 3699 | |
9eb7b46e PZ |
3700 | return (0); |
3701 | } | |
3702 | ||
3703 | static int | |
3704 | spa_ld_open_rootbp(spa_t *spa) | |
3705 | { | |
3706 | int error = 0; | |
3707 | vdev_t *rvd = spa->spa_root_vdev; | |
a1d477c2 | 3708 | |
9ae529ec | 3709 | error = dsl_pool_init(spa, spa->spa_first_txg, &spa->spa_dsl_pool); |
4a0ee12a PZ |
3710 | if (error != 0) { |
3711 | spa_load_failed(spa, "unable to open rootbp in dsl_pool_init " | |
3712 | "[error=%d]", error); | |
428870ff | 3713 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4a0ee12a | 3714 | } |
428870ff BB |
3715 | spa->spa_meta_objset = spa->spa_dsl_pool->dp_meta_objset; |
3716 | ||
9eb7b46e PZ |
3717 | return (0); |
3718 | } | |
3719 | ||
3720 | static int | |
d2734cce | 3721 | spa_ld_trusted_config(spa_t *spa, spa_import_type_t type, |
6cb8e530 | 3722 | boolean_t reloading) |
9eb7b46e | 3723 | { |
6cb8e530 PZ |
3724 | vdev_t *mrvd, *rvd = spa->spa_root_vdev; |
3725 | nvlist_t *nv, *mos_config, *policy; | |
3726 | int error = 0, copy_error; | |
3727 | uint64_t healthy_tvds, healthy_tvds_mos; | |
3728 | uint64_t mos_config_txg; | |
9eb7b46e | 3729 | |
4a0ee12a PZ |
3730 | if (spa_dir_prop(spa, DMU_POOL_CONFIG, &spa->spa_config_object, B_TRUE) |
3731 | != 0) | |
428870ff BB |
3732 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
3733 | ||
a1d477c2 | 3734 | /* |
6cb8e530 PZ |
3735 | * If we're assembling a pool from a split, the config provided is |
3736 | * already trusted so there is nothing to do. | |
a1d477c2 | 3737 | */ |
6cb8e530 PZ |
3738 | if (type == SPA_IMPORT_ASSEMBLE) |
3739 | return (0); | |
3740 | ||
3741 | healthy_tvds = spa_healthy_core_tvds(spa); | |
a1d477c2 | 3742 | |
6cb8e530 PZ |
3743 | if (load_nvlist(spa, spa->spa_config_object, &mos_config) |
3744 | != 0) { | |
3745 | spa_load_failed(spa, "unable to retrieve MOS config"); | |
3746 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); | |
3747 | } | |
3748 | ||
3749 | /* | |
3750 | * If we are doing an open, pool owner wasn't verified yet, thus do | |
3751 | * the verification here. | |
3752 | */ | |
3753 | if (spa->spa_load_state == SPA_LOAD_OPEN) { | |
3754 | error = spa_verify_host(spa, mos_config); | |
3755 | if (error != 0) { | |
a1d477c2 | 3756 | nvlist_free(mos_config); |
6cb8e530 | 3757 | return (error); |
a1d477c2 | 3758 | } |
6cb8e530 PZ |
3759 | } |
3760 | ||
3761 | nv = fnvlist_lookup_nvlist(mos_config, ZPOOL_CONFIG_VDEV_TREE); | |
a1d477c2 | 3762 | |
6cb8e530 PZ |
3763 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
3764 | ||
3765 | /* | |
3766 | * Build a new vdev tree from the trusted config | |
3767 | */ | |
b2255edc BB |
3768 | error = spa_config_parse(spa, &mrvd, nv, NULL, 0, VDEV_ALLOC_LOAD); |
3769 | if (error != 0) { | |
3770 | nvlist_free(mos_config); | |
3771 | spa_config_exit(spa, SCL_ALL, FTAG); | |
3772 | spa_load_failed(spa, "spa_config_parse failed [error=%d]", | |
3773 | error); | |
3774 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, error)); | |
3775 | } | |
6cb8e530 PZ |
3776 | |
3777 | /* | |
3778 | * Vdev paths in the MOS may be obsolete. If the untrusted config was | |
3779 | * obtained by scanning /dev/dsk, then it will have the right vdev | |
3780 | * paths. We update the trusted MOS config with this information. | |
3781 | * We first try to copy the paths with vdev_copy_path_strict, which | |
3782 | * succeeds only when both configs have exactly the same vdev tree. | |
3783 | * If that fails, we fall back to a more flexible method that has a | |
3784 | * best effort policy. | |
3785 | */ | |
3786 | copy_error = vdev_copy_path_strict(rvd, mrvd); | |
3787 | if (copy_error != 0 || spa_load_print_vdev_tree) { | |
3788 | spa_load_note(spa, "provided vdev tree:"); | |
3789 | vdev_dbgmsg_print_tree(rvd, 2); | |
3790 | spa_load_note(spa, "MOS vdev tree:"); | |
3791 | vdev_dbgmsg_print_tree(mrvd, 2); | |
3792 | } | |
3793 | if (copy_error != 0) { | |
3794 | spa_load_note(spa, "vdev_copy_path_strict failed, falling " | |
3795 | "back to vdev_copy_path_relaxed"); | |
3796 | vdev_copy_path_relaxed(rvd, mrvd); | |
3797 | } | |
3798 | ||
3799 | vdev_close(rvd); | |
3800 | vdev_free(rvd); | |
3801 | spa->spa_root_vdev = mrvd; | |
3802 | rvd = mrvd; | |
3803 | spa_config_exit(spa, SCL_ALL, FTAG); | |
3804 | ||
3805 | /* | |
3806 | * We will use spa_config if we decide to reload the spa or if spa_load | |
3807 | * fails and we rewind. We must thus regenerate the config using the | |
8a393be3 PZ |
3808 | * MOS information with the updated paths. ZPOOL_LOAD_POLICY is used to |
3809 | * pass settings on how to load the pool and is not stored in the MOS. | |
3810 | * We copy it over to our new, trusted config. | |
6cb8e530 PZ |
3811 | */ |
3812 | mos_config_txg = fnvlist_lookup_uint64(mos_config, | |
3813 | ZPOOL_CONFIG_POOL_TXG); | |
3814 | nvlist_free(mos_config); | |
3815 | mos_config = spa_config_generate(spa, NULL, mos_config_txg, B_FALSE); | |
8a393be3 | 3816 | if (nvlist_lookup_nvlist(spa->spa_config, ZPOOL_LOAD_POLICY, |
6cb8e530 | 3817 | &policy) == 0) |
8a393be3 | 3818 | fnvlist_add_nvlist(mos_config, ZPOOL_LOAD_POLICY, policy); |
6cb8e530 PZ |
3819 | spa_config_set(spa, mos_config); |
3820 | spa->spa_config_source = SPA_CONFIG_SRC_MOS; | |
3821 | ||
3822 | /* | |
3823 | * Now that we got the config from the MOS, we should be more strict | |
3824 | * in checking blkptrs and can make assumptions about the consistency | |
3825 | * of the vdev tree. spa_trust_config must be set to true before opening | |
3826 | * vdevs in order for them to be writeable. | |
3827 | */ | |
3828 | spa->spa_trust_config = B_TRUE; | |
3829 | ||
3830 | /* | |
3831 | * Open and validate the new vdev tree | |
3832 | */ | |
3833 | error = spa_ld_open_vdevs(spa); | |
3834 | if (error != 0) | |
3835 | return (error); | |
3836 | ||
3837 | error = spa_ld_validate_vdevs(spa); | |
3838 | if (error != 0) | |
3839 | return (error); | |
3840 | ||
3841 | if (copy_error != 0 || spa_load_print_vdev_tree) { | |
3842 | spa_load_note(spa, "final vdev tree:"); | |
3843 | vdev_dbgmsg_print_tree(rvd, 2); | |
3844 | } | |
3845 | ||
3846 | if (spa->spa_load_state != SPA_LOAD_TRYIMPORT && | |
3847 | !spa->spa_extreme_rewind && zfs_max_missing_tvds == 0) { | |
a1d477c2 | 3848 | /* |
6cb8e530 PZ |
3849 | * Sanity check to make sure that we are indeed loading the |
3850 | * latest uberblock. If we missed SPA_SYNC_MIN_VDEVS tvds | |
3851 | * in the config provided and they happened to be the only ones | |
3852 | * to have the latest uberblock, we could involuntarily perform | |
3853 | * an extreme rewind. | |
a1d477c2 | 3854 | */ |
6cb8e530 PZ |
3855 | healthy_tvds_mos = spa_healthy_core_tvds(spa); |
3856 | if (healthy_tvds_mos - healthy_tvds >= | |
3857 | SPA_SYNC_MIN_VDEVS) { | |
3858 | spa_load_note(spa, "config provided misses too many " | |
3859 | "top-level vdevs compared to MOS (%lld vs %lld). ", | |
3860 | (u_longlong_t)healthy_tvds, | |
3861 | (u_longlong_t)healthy_tvds_mos); | |
3862 | spa_load_note(spa, "vdev tree:"); | |
3863 | vdev_dbgmsg_print_tree(rvd, 2); | |
3864 | if (reloading) { | |
3865 | spa_load_failed(spa, "config was already " | |
3866 | "provided from MOS. Aborting."); | |
3867 | return (spa_vdev_err(rvd, | |
3868 | VDEV_AUX_CORRUPT_DATA, EIO)); | |
3869 | } | |
3870 | spa_load_note(spa, "spa must be reloaded using MOS " | |
3871 | "config"); | |
3872 | return (SET_ERROR(EAGAIN)); | |
4a0ee12a | 3873 | } |
a1d477c2 MA |
3874 | } |
3875 | ||
6cb8e530 PZ |
3876 | error = spa_check_for_missing_logs(spa); |
3877 | if (error != 0) | |
3878 | return (spa_vdev_err(rvd, VDEV_AUX_BAD_GUID_SUM, ENXIO)); | |
3879 | ||
3880 | if (rvd->vdev_guid_sum != spa->spa_uberblock.ub_guid_sum) { | |
3881 | spa_load_failed(spa, "uberblock guid sum doesn't match MOS " | |
3882 | "guid sum (%llu != %llu)", | |
3883 | (u_longlong_t)spa->spa_uberblock.ub_guid_sum, | |
3884 | (u_longlong_t)rvd->vdev_guid_sum); | |
3885 | return (spa_vdev_err(rvd, VDEV_AUX_BAD_GUID_SUM, | |
3886 | ENXIO)); | |
3887 | } | |
3888 | ||
9eb7b46e PZ |
3889 | return (0); |
3890 | } | |
3891 | ||
3892 | static int | |
3893 | spa_ld_open_indirect_vdev_metadata(spa_t *spa) | |
3894 | { | |
3895 | int error = 0; | |
3896 | vdev_t *rvd = spa->spa_root_vdev; | |
3897 | ||
a1d477c2 MA |
3898 | /* |
3899 | * Everything that we read before spa_remove_init() must be stored | |
3900 | * on concreted vdevs. Therefore we do this as early as possible. | |
3901 | */ | |
4a0ee12a PZ |
3902 | error = spa_remove_init(spa); |
3903 | if (error != 0) { | |
3904 | spa_load_failed(spa, "spa_remove_init failed [error=%d]", | |
3905 | error); | |
a1d477c2 | 3906 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4a0ee12a | 3907 | } |
a1d477c2 | 3908 | |
9eb7b46e PZ |
3909 | /* |
3910 | * Retrieve information needed to condense indirect vdev mappings. | |
3911 | */ | |
3912 | error = spa_condense_init(spa); | |
3913 | if (error != 0) { | |
4a0ee12a PZ |
3914 | spa_load_failed(spa, "spa_condense_init failed [error=%d]", |
3915 | error); | |
9eb7b46e PZ |
3916 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, error)); |
3917 | } | |
3918 | ||
3919 | return (0); | |
3920 | } | |
3921 | ||
3922 | static int | |
4a0ee12a | 3923 | spa_ld_check_features(spa_t *spa, boolean_t *missing_feat_writep) |
9eb7b46e PZ |
3924 | { |
3925 | int error = 0; | |
3926 | vdev_t *rvd = spa->spa_root_vdev; | |
3927 | ||
9ae529ec CS |
3928 | if (spa_version(spa) >= SPA_VERSION_FEATURES) { |
3929 | boolean_t missing_feat_read = B_FALSE; | |
b9b24bb4 | 3930 | nvlist_t *unsup_feat, *enabled_feat; |
9ae529ec CS |
3931 | |
3932 | if (spa_dir_prop(spa, DMU_POOL_FEATURES_FOR_READ, | |
4a0ee12a | 3933 | &spa->spa_feat_for_read_obj, B_TRUE) != 0) { |
9ae529ec CS |
3934 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
3935 | } | |
3936 | ||
3937 | if (spa_dir_prop(spa, DMU_POOL_FEATURES_FOR_WRITE, | |
4a0ee12a | 3938 | &spa->spa_feat_for_write_obj, B_TRUE) != 0) { |
9ae529ec CS |
3939 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
3940 | } | |
3941 | ||
3942 | if (spa_dir_prop(spa, DMU_POOL_FEATURE_DESCRIPTIONS, | |
4a0ee12a | 3943 | &spa->spa_feat_desc_obj, B_TRUE) != 0) { |
9ae529ec CS |
3944 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
3945 | } | |
3946 | ||
b9b24bb4 CS |
3947 | enabled_feat = fnvlist_alloc(); |
3948 | unsup_feat = fnvlist_alloc(); | |
9ae529ec | 3949 | |
fa86b5db | 3950 | if (!spa_features_check(spa, B_FALSE, |
b9b24bb4 | 3951 | unsup_feat, enabled_feat)) |
9ae529ec CS |
3952 | missing_feat_read = B_TRUE; |
3953 | ||
4a0ee12a PZ |
3954 | if (spa_writeable(spa) || |
3955 | spa->spa_load_state == SPA_LOAD_TRYIMPORT) { | |
fa86b5db | 3956 | if (!spa_features_check(spa, B_TRUE, |
b9b24bb4 | 3957 | unsup_feat, enabled_feat)) { |
9eb7b46e | 3958 | *missing_feat_writep = B_TRUE; |
b9b24bb4 | 3959 | } |
9ae529ec CS |
3960 | } |
3961 | ||
b9b24bb4 CS |
3962 | fnvlist_add_nvlist(spa->spa_load_info, |
3963 | ZPOOL_CONFIG_ENABLED_FEAT, enabled_feat); | |
3964 | ||
9ae529ec | 3965 | if (!nvlist_empty(unsup_feat)) { |
b9b24bb4 CS |
3966 | fnvlist_add_nvlist(spa->spa_load_info, |
3967 | ZPOOL_CONFIG_UNSUP_FEAT, unsup_feat); | |
9ae529ec CS |
3968 | } |
3969 | ||
b9b24bb4 CS |
3970 | fnvlist_free(enabled_feat); |
3971 | fnvlist_free(unsup_feat); | |
9ae529ec CS |
3972 | |
3973 | if (!missing_feat_read) { | |
3974 | fnvlist_add_boolean(spa->spa_load_info, | |
3975 | ZPOOL_CONFIG_CAN_RDONLY); | |
3976 | } | |
3977 | ||
3978 | /* | |
3979 | * If the state is SPA_LOAD_TRYIMPORT, our objective is | |
3980 | * twofold: to determine whether the pool is available for | |
3981 | * import in read-write mode and (if it is not) whether the | |
3982 | * pool is available for import in read-only mode. If the pool | |
3983 | * is available for import in read-write mode, it is displayed | |
3984 | * as available in userland; if it is not available for import | |
3985 | * in read-only mode, it is displayed as unavailable in | |
3986 | * userland. If the pool is available for import in read-only | |
3987 | * mode but not read-write mode, it is displayed as unavailable | |
3988 | * in userland with a special note that the pool is actually | |
3989 | * available for open in read-only mode. | |
3990 | * | |
3991 | * As a result, if the state is SPA_LOAD_TRYIMPORT and we are | |
3992 | * missing a feature for write, we must first determine whether | |
3993 | * the pool can be opened read-only before returning to | |
3994 | * userland in order to know whether to display the | |
3995 | * abovementioned note. | |
3996 | */ | |
9eb7b46e | 3997 | if (missing_feat_read || (*missing_feat_writep && |
9ae529ec | 3998 | spa_writeable(spa))) { |
4a0ee12a | 3999 | spa_load_failed(spa, "pool uses unsupported features"); |
9ae529ec CS |
4000 | return (spa_vdev_err(rvd, VDEV_AUX_UNSUP_FEAT, |
4001 | ENOTSUP)); | |
4002 | } | |
b0bc7a84 MG |
4003 | |
4004 | /* | |
4005 | * Load refcounts for ZFS features from disk into an in-memory | |
4006 | * cache during SPA initialization. | |
4007 | */ | |
1c27024e | 4008 | for (spa_feature_t i = 0; i < SPA_FEATURES; i++) { |
b0bc7a84 MG |
4009 | uint64_t refcount; |
4010 | ||
4011 | error = feature_get_refcount_from_disk(spa, | |
4012 | &spa_feature_table[i], &refcount); | |
4013 | if (error == 0) { | |
4014 | spa->spa_feat_refcount_cache[i] = refcount; | |
4015 | } else if (error == ENOTSUP) { | |
4016 | spa->spa_feat_refcount_cache[i] = | |
4017 | SPA_FEATURE_DISABLED; | |
4018 | } else { | |
4a0ee12a PZ |
4019 | spa_load_failed(spa, "error getting refcount " |
4020 | "for feature %s [error=%d]", | |
4021 | spa_feature_table[i].fi_guid, error); | |
b0bc7a84 MG |
4022 | return (spa_vdev_err(rvd, |
4023 | VDEV_AUX_CORRUPT_DATA, EIO)); | |
4024 | } | |
4025 | } | |
4026 | } | |
4027 | ||
4028 | if (spa_feature_is_active(spa, SPA_FEATURE_ENABLED_TXG)) { | |
4029 | if (spa_dir_prop(spa, DMU_POOL_FEATURE_ENABLED_TXG, | |
4a0ee12a | 4030 | &spa->spa_feat_enabled_txg_obj, B_TRUE) != 0) |
b0bc7a84 | 4031 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
9ae529ec CS |
4032 | } |
4033 | ||
f00ab3f2 TC |
4034 | /* |
4035 | * Encryption was added before bookmark_v2, even though bookmark_v2 | |
4036 | * is now a dependency. If this pool has encryption enabled without | |
4037 | * bookmark_v2, trigger an errata message. | |
4038 | */ | |
4039 | if (spa_feature_is_enabled(spa, SPA_FEATURE_ENCRYPTION) && | |
4040 | !spa_feature_is_enabled(spa, SPA_FEATURE_BOOKMARK_V2)) { | |
4041 | spa->spa_errata = ZPOOL_ERRATA_ZOL_8308_ENCRYPTION; | |
4042 | } | |
4043 | ||
9eb7b46e PZ |
4044 | return (0); |
4045 | } | |
4046 | ||
4047 | static int | |
4048 | spa_ld_load_special_directories(spa_t *spa) | |
4049 | { | |
4050 | int error = 0; | |
4051 | vdev_t *rvd = spa->spa_root_vdev; | |
4052 | ||
9ae529ec CS |
4053 | spa->spa_is_initializing = B_TRUE; |
4054 | error = dsl_pool_open(spa->spa_dsl_pool); | |
4055 | spa->spa_is_initializing = B_FALSE; | |
4a0ee12a PZ |
4056 | if (error != 0) { |
4057 | spa_load_failed(spa, "dsl_pool_open failed [error=%d]", error); | |
9ae529ec | 4058 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4a0ee12a | 4059 | } |
9ae529ec | 4060 | |
9eb7b46e PZ |
4061 | return (0); |
4062 | } | |
428870ff | 4063 | |
9eb7b46e PZ |
4064 | static int |
4065 | spa_ld_get_props(spa_t *spa) | |
4066 | { | |
4067 | int error = 0; | |
4068 | uint64_t obj; | |
4069 | vdev_t *rvd = spa->spa_root_vdev; | |
34dc7c2f | 4070 | |
3c67d83a TH |
4071 | /* Grab the checksum salt from the MOS. */ |
4072 | error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, | |
4073 | DMU_POOL_CHECKSUM_SALT, 1, | |
4074 | sizeof (spa->spa_cksum_salt.zcs_bytes), | |
4075 | spa->spa_cksum_salt.zcs_bytes); | |
4076 | if (error == ENOENT) { | |
4077 | /* Generate a new salt for subsequent use */ | |
4078 | (void) random_get_pseudo_bytes(spa->spa_cksum_salt.zcs_bytes, | |
4079 | sizeof (spa->spa_cksum_salt.zcs_bytes)); | |
4080 | } else if (error != 0) { | |
4a0ee12a PZ |
4081 | spa_load_failed(spa, "unable to retrieve checksum salt from " |
4082 | "MOS [error=%d]", error); | |
3c67d83a TH |
4083 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4084 | } | |
4085 | ||
4a0ee12a | 4086 | if (spa_dir_prop(spa, DMU_POOL_SYNC_BPOBJ, &obj, B_TRUE) != 0) |
428870ff BB |
4087 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4088 | error = bpobj_open(&spa->spa_deferred_bpobj, spa->spa_meta_objset, obj); | |
4a0ee12a PZ |
4089 | if (error != 0) { |
4090 | spa_load_failed(spa, "error opening deferred-frees bpobj " | |
4091 | "[error=%d]", error); | |
428870ff | 4092 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4a0ee12a | 4093 | } |
34dc7c2f BB |
4094 | |
4095 | /* | |
4096 | * Load the bit that tells us to use the new accounting function | |
4097 | * (raid-z deflation). If we have an older pool, this will not | |
4098 | * be present. | |
4099 | */ | |
4a0ee12a | 4100 | error = spa_dir_prop(spa, DMU_POOL_DEFLATE, &spa->spa_deflate, B_FALSE); |
428870ff BB |
4101 | if (error != 0 && error != ENOENT) |
4102 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); | |
4103 | ||
4104 | error = spa_dir_prop(spa, DMU_POOL_CREATION_VERSION, | |
4a0ee12a | 4105 | &spa->spa_creation_version, B_FALSE); |
428870ff BB |
4106 | if (error != 0 && error != ENOENT) |
4107 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); | |
34dc7c2f BB |
4108 | |
4109 | /* | |
4110 | * Load the persistent error log. If we have an older pool, this will | |
4111 | * not be present. | |
4112 | */ | |
4a0ee12a PZ |
4113 | error = spa_dir_prop(spa, DMU_POOL_ERRLOG_LAST, &spa->spa_errlog_last, |
4114 | B_FALSE); | |
428870ff BB |
4115 | if (error != 0 && error != ENOENT) |
4116 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); | |
34dc7c2f | 4117 | |
428870ff | 4118 | error = spa_dir_prop(spa, DMU_POOL_ERRLOG_SCRUB, |
4a0ee12a | 4119 | &spa->spa_errlog_scrub, B_FALSE); |
428870ff BB |
4120 | if (error != 0 && error != ENOENT) |
4121 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); | |
34dc7c2f | 4122 | |
37f03da8 SH |
4123 | /* |
4124 | * Load the livelist deletion field. If a livelist is queued for | |
4125 | * deletion, indicate that in the spa | |
4126 | */ | |
4127 | error = spa_dir_prop(spa, DMU_POOL_DELETED_CLONES, | |
4128 | &spa->spa_livelists_to_delete, B_FALSE); | |
4129 | if (error != 0 && error != ENOENT) | |
4130 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); | |
4131 | ||
34dc7c2f BB |
4132 | /* |
4133 | * Load the history object. If we have an older pool, this | |
4134 | * will not be present. | |
4135 | */ | |
4a0ee12a | 4136 | error = spa_dir_prop(spa, DMU_POOL_HISTORY, &spa->spa_history, B_FALSE); |
428870ff BB |
4137 | if (error != 0 && error != ENOENT) |
4138 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); | |
4139 | ||
e0ab3ab5 JS |
4140 | /* |
4141 | * Load the per-vdev ZAP map. If we have an older pool, this will not | |
4142 | * be present; in this case, defer its creation to a later time to | |
4143 | * avoid dirtying the MOS this early / out of sync context. See | |
4144 | * spa_sync_config_object. | |
4145 | */ | |
4146 | ||
4147 | /* The sentinel is only available in the MOS config. */ | |
1c27024e | 4148 | nvlist_t *mos_config; |
4a0ee12a PZ |
4149 | if (load_nvlist(spa, spa->spa_config_object, &mos_config) != 0) { |
4150 | spa_load_failed(spa, "unable to retrieve MOS config"); | |
e0ab3ab5 | 4151 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4a0ee12a | 4152 | } |
e0ab3ab5 JS |
4153 | |
4154 | error = spa_dir_prop(spa, DMU_POOL_VDEV_ZAP_MAP, | |
4a0ee12a | 4155 | &spa->spa_all_vdev_zaps, B_FALSE); |
e0ab3ab5 | 4156 | |
38640550 DB |
4157 | if (error == ENOENT) { |
4158 | VERIFY(!nvlist_exists(mos_config, | |
4159 | ZPOOL_CONFIG_HAS_PER_VDEV_ZAPS)); | |
4160 | spa->spa_avz_action = AVZ_ACTION_INITIALIZE; | |
4161 | ASSERT0(vdev_count_verify_zaps(spa->spa_root_vdev)); | |
4162 | } else if (error != 0) { | |
e0ab3ab5 | 4163 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
38640550 | 4164 | } else if (!nvlist_exists(mos_config, ZPOOL_CONFIG_HAS_PER_VDEV_ZAPS)) { |
e0ab3ab5 JS |
4165 | /* |
4166 | * An older version of ZFS overwrote the sentinel value, so | |
4167 | * we have orphaned per-vdev ZAPs in the MOS. Defer their | |
4168 | * destruction to later; see spa_sync_config_object. | |
4169 | */ | |
4170 | spa->spa_avz_action = AVZ_ACTION_DESTROY; | |
4171 | /* | |
4172 | * We're assuming that no vdevs have had their ZAPs created | |
4173 | * before this. Better be sure of it. | |
4174 | */ | |
4175 | ASSERT0(vdev_count_verify_zaps(spa->spa_root_vdev)); | |
4176 | } | |
4177 | nvlist_free(mos_config); | |
4178 | ||
9eb7b46e PZ |
4179 | spa->spa_delegation = zpool_prop_default_numeric(ZPOOL_PROP_DELEGATION); |
4180 | ||
4a0ee12a PZ |
4181 | error = spa_dir_prop(spa, DMU_POOL_PROPS, &spa->spa_pool_props_object, |
4182 | B_FALSE); | |
9eb7b46e PZ |
4183 | if (error && error != ENOENT) |
4184 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); | |
4185 | ||
4186 | if (error == 0) { | |
da27b8bc | 4187 | uint64_t autoreplace = 0; |
9eb7b46e PZ |
4188 | |
4189 | spa_prop_find(spa, ZPOOL_PROP_BOOTFS, &spa->spa_bootfs); | |
4190 | spa_prop_find(spa, ZPOOL_PROP_AUTOREPLACE, &autoreplace); | |
4191 | spa_prop_find(spa, ZPOOL_PROP_DELEGATION, &spa->spa_delegation); | |
4192 | spa_prop_find(spa, ZPOOL_PROP_FAILUREMODE, &spa->spa_failmode); | |
4193 | spa_prop_find(spa, ZPOOL_PROP_AUTOEXPAND, &spa->spa_autoexpand); | |
c02c1bec | 4194 | spa_prop_find(spa, ZPOOL_PROP_MULTIHOST, &spa->spa_multihost); |
1b939560 | 4195 | spa_prop_find(spa, ZPOOL_PROP_AUTOTRIM, &spa->spa_autotrim); |
9eb7b46e PZ |
4196 | spa->spa_autoreplace = (autoreplace != 0); |
4197 | } | |
4198 | ||
6cb8e530 PZ |
4199 | /* |
4200 | * If we are importing a pool with missing top-level vdevs, | |
4201 | * we enforce that the pool doesn't panic or get suspended on | |
4202 | * error since the likelihood of missing data is extremely high. | |
4203 | */ | |
4204 | if (spa->spa_missing_tvds > 0 && | |
4205 | spa->spa_failmode != ZIO_FAILURE_MODE_CONTINUE && | |
4206 | spa->spa_load_state != SPA_LOAD_TRYIMPORT) { | |
4207 | spa_load_note(spa, "forcing failmode to 'continue' " | |
4208 | "as some top level vdevs are missing"); | |
4209 | spa->spa_failmode = ZIO_FAILURE_MODE_CONTINUE; | |
4210 | } | |
4211 | ||
9eb7b46e PZ |
4212 | return (0); |
4213 | } | |
4214 | ||
4215 | static int | |
4216 | spa_ld_open_aux_vdevs(spa_t *spa, spa_import_type_t type) | |
4217 | { | |
4218 | int error = 0; | |
4219 | vdev_t *rvd = spa->spa_root_vdev; | |
4220 | ||
428870ff BB |
4221 | /* |
4222 | * If we're assembling the pool from the split-off vdevs of | |
4223 | * an existing pool, we don't want to attach the spares & cache | |
4224 | * devices. | |
4225 | */ | |
34dc7c2f BB |
4226 | |
4227 | /* | |
4228 | * Load any hot spares for this pool. | |
4229 | */ | |
4a0ee12a PZ |
4230 | error = spa_dir_prop(spa, DMU_POOL_SPARES, &spa->spa_spares.sav_object, |
4231 | B_FALSE); | |
428870ff BB |
4232 | if (error != 0 && error != ENOENT) |
4233 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); | |
4234 | if (error == 0 && type != SPA_IMPORT_ASSEMBLE) { | |
34dc7c2f BB |
4235 | ASSERT(spa_version(spa) >= SPA_VERSION_SPARES); |
4236 | if (load_nvlist(spa, spa->spa_spares.sav_object, | |
4a0ee12a PZ |
4237 | &spa->spa_spares.sav_config) != 0) { |
4238 | spa_load_failed(spa, "error loading spares nvlist"); | |
428870ff | 4239 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4a0ee12a | 4240 | } |
34dc7c2f | 4241 | |
b128c09f | 4242 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f | 4243 | spa_load_spares(spa); |
b128c09f | 4244 | spa_config_exit(spa, SCL_ALL, FTAG); |
428870ff BB |
4245 | } else if (error == 0) { |
4246 | spa->spa_spares.sav_sync = B_TRUE; | |
34dc7c2f BB |
4247 | } |
4248 | ||
4249 | /* | |
4250 | * Load any level 2 ARC devices for this pool. | |
4251 | */ | |
428870ff | 4252 | error = spa_dir_prop(spa, DMU_POOL_L2CACHE, |
4a0ee12a | 4253 | &spa->spa_l2cache.sav_object, B_FALSE); |
428870ff BB |
4254 | if (error != 0 && error != ENOENT) |
4255 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); | |
4256 | if (error == 0 && type != SPA_IMPORT_ASSEMBLE) { | |
34dc7c2f BB |
4257 | ASSERT(spa_version(spa) >= SPA_VERSION_L2CACHE); |
4258 | if (load_nvlist(spa, spa->spa_l2cache.sav_object, | |
4a0ee12a PZ |
4259 | &spa->spa_l2cache.sav_config) != 0) { |
4260 | spa_load_failed(spa, "error loading l2cache nvlist"); | |
428870ff | 4261 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4a0ee12a | 4262 | } |
34dc7c2f | 4263 | |
b128c09f | 4264 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f | 4265 | spa_load_l2cache(spa); |
b128c09f | 4266 | spa_config_exit(spa, SCL_ALL, FTAG); |
428870ff BB |
4267 | } else if (error == 0) { |
4268 | spa->spa_l2cache.sav_sync = B_TRUE; | |
b128c09f BB |
4269 | } |
4270 | ||
9eb7b46e PZ |
4271 | return (0); |
4272 | } | |
428870ff | 4273 | |
9eb7b46e | 4274 | static int |
4a0ee12a | 4275 | spa_ld_load_vdev_metadata(spa_t *spa) |
9eb7b46e PZ |
4276 | { |
4277 | int error = 0; | |
4278 | vdev_t *rvd = spa->spa_root_vdev; | |
34dc7c2f | 4279 | |
379ca9cf OF |
4280 | /* |
4281 | * If the 'multihost' property is set, then never allow a pool to | |
4282 | * be imported when the system hostid is zero. The exception to | |
4283 | * this rule is zdb which is always allowed to access pools. | |
4284 | */ | |
25f06d67 | 4285 | if (spa_multihost(spa) && spa_get_hostid(spa) == 0 && |
379ca9cf OF |
4286 | (spa->spa_import_flags & ZFS_IMPORT_SKIP_MMP) == 0) { |
4287 | fnvlist_add_uint64(spa->spa_load_info, | |
4288 | ZPOOL_CONFIG_MMP_STATE, MMP_STATE_NO_HOSTID); | |
4289 | return (spa_vdev_err(rvd, VDEV_AUX_ACTIVE, EREMOTEIO)); | |
4290 | } | |
4291 | ||
34dc7c2f BB |
4292 | /* |
4293 | * If the 'autoreplace' property is set, then post a resource notifying | |
4294 | * the ZFS DE that it should not issue any faults for unopenable | |
4295 | * devices. We also iterate over the vdevs, and post a sysevent for any | |
4296 | * unopenable vdevs so that the normal autoreplace handler can take | |
4297 | * over. | |
4298 | */ | |
4a0ee12a | 4299 | if (spa->spa_autoreplace && spa->spa_load_state != SPA_LOAD_TRYIMPORT) { |
34dc7c2f | 4300 | spa_check_removed(spa->spa_root_vdev); |
428870ff BB |
4301 | /* |
4302 | * For the import case, this is done in spa_import(), because | |
4303 | * at this point we're using the spare definitions from | |
4304 | * the MOS config, not necessarily from the userland config. | |
4305 | */ | |
4a0ee12a | 4306 | if (spa->spa_load_state != SPA_LOAD_IMPORT) { |
428870ff BB |
4307 | spa_aux_check_removed(&spa->spa_spares); |
4308 | spa_aux_check_removed(&spa->spa_l2cache); | |
4309 | } | |
4310 | } | |
34dc7c2f BB |
4311 | |
4312 | /* | |
9eb7b46e | 4313 | * Load the vdev metadata such as metaslabs, DTLs, spacemap object, etc. |
34dc7c2f | 4314 | */ |
a1d477c2 MA |
4315 | error = vdev_load(rvd); |
4316 | if (error != 0) { | |
4a0ee12a | 4317 | spa_load_failed(spa, "vdev_load failed [error=%d]", error); |
a1d477c2 MA |
4318 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, error)); |
4319 | } | |
4320 | ||
93e28d66 SD |
4321 | error = spa_ld_log_spacemaps(spa); |
4322 | if (error != 0) { | |
4323 | spa_load_failed(spa, "spa_ld_log_sm_data failed [error=%d]", | |
4324 | error); | |
4325 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, error)); | |
4326 | } | |
4327 | ||
34dc7c2f | 4328 | /* |
9eb7b46e | 4329 | * Propagate the leaf DTLs we just loaded all the way up the vdev tree. |
34dc7c2f | 4330 | */ |
b128c09f | 4331 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
9a49d3f3 | 4332 | vdev_dtl_reassess(rvd, 0, 0, B_FALSE, B_FALSE); |
b128c09f | 4333 | spa_config_exit(spa, SCL_ALL, FTAG); |
34dc7c2f | 4334 | |
9eb7b46e PZ |
4335 | return (0); |
4336 | } | |
4337 | ||
4338 | static int | |
4339 | spa_ld_load_dedup_tables(spa_t *spa) | |
4340 | { | |
4341 | int error = 0; | |
4342 | vdev_t *rvd = spa->spa_root_vdev; | |
4343 | ||
428870ff | 4344 | error = ddt_load(spa); |
4a0ee12a PZ |
4345 | if (error != 0) { |
4346 | spa_load_failed(spa, "ddt_load failed [error=%d]", error); | |
428870ff | 4347 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4a0ee12a | 4348 | } |
428870ff | 4349 | |
9eb7b46e PZ |
4350 | return (0); |
4351 | } | |
4352 | ||
4353 | static int | |
4354 | spa_ld_verify_logs(spa_t *spa, spa_import_type_t type, char **ereport) | |
4355 | { | |
4356 | vdev_t *rvd = spa->spa_root_vdev; | |
428870ff | 4357 | |
4a0ee12a PZ |
4358 | if (type != SPA_IMPORT_ASSEMBLE && spa_writeable(spa)) { |
4359 | boolean_t missing = spa_check_logs(spa); | |
4360 | if (missing) { | |
6cb8e530 PZ |
4361 | if (spa->spa_missing_tvds != 0) { |
4362 | spa_load_note(spa, "spa_check_logs failed " | |
4363 | "so dropping the logs"); | |
4364 | } else { | |
4365 | *ereport = FM_EREPORT_ZFS_LOG_REPLAY; | |
4366 | spa_load_failed(spa, "spa_check_logs failed"); | |
4367 | return (spa_vdev_err(rvd, VDEV_AUX_BAD_LOG, | |
4368 | ENXIO)); | |
4369 | } | |
4a0ee12a | 4370 | } |
428870ff BB |
4371 | } |
4372 | ||
9eb7b46e PZ |
4373 | return (0); |
4374 | } | |
4375 | ||
4376 | static int | |
4a0ee12a | 4377 | spa_ld_verify_pool_data(spa_t *spa) |
9eb7b46e PZ |
4378 | { |
4379 | int error = 0; | |
4380 | vdev_t *rvd = spa->spa_root_vdev; | |
4381 | ||
4382 | /* | |
4383 | * We've successfully opened the pool, verify that we're ready | |
4384 | * to start pushing transactions. | |
4385 | */ | |
4a0ee12a | 4386 | if (spa->spa_load_state != SPA_LOAD_TRYIMPORT) { |
9eb7b46e PZ |
4387 | error = spa_load_verify(spa); |
4388 | if (error != 0) { | |
4a0ee12a PZ |
4389 | spa_load_failed(spa, "spa_load_verify failed " |
4390 | "[error=%d]", error); | |
9eb7b46e PZ |
4391 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, |
4392 | error)); | |
4393 | } | |
4394 | } | |
4395 | ||
4396 | return (0); | |
4397 | } | |
4398 | ||
4399 | static void | |
4400 | spa_ld_claim_log_blocks(spa_t *spa) | |
4401 | { | |
4402 | dmu_tx_t *tx; | |
4403 | dsl_pool_t *dp = spa_get_dsl(spa); | |
4404 | ||
4405 | /* | |
4406 | * Claim log blocks that haven't been committed yet. | |
4407 | * This must all happen in a single txg. | |
4408 | * Note: spa_claim_max_txg is updated by spa_claim_notify(), | |
4409 | * invoked from zil_claim_log_block()'s i/o done callback. | |
4410 | * Price of rollback is that we abandon the log. | |
4411 | */ | |
4412 | spa->spa_claiming = B_TRUE; | |
4413 | ||
4414 | tx = dmu_tx_create_assigned(dp, spa_first_txg(spa)); | |
4415 | (void) dmu_objset_find_dp(dp, dp->dp_root_dir_obj, | |
4416 | zil_claim, tx, DS_FIND_CHILDREN); | |
4417 | dmu_tx_commit(tx); | |
4418 | ||
4419 | spa->spa_claiming = B_FALSE; | |
4420 | ||
4421 | spa_set_log_state(spa, SPA_LOG_GOOD); | |
4422 | } | |
4423 | ||
4424 | static void | |
6cb8e530 | 4425 | spa_ld_check_for_config_update(spa_t *spa, uint64_t config_cache_txg, |
d2734cce | 4426 | boolean_t update_config_cache) |
9eb7b46e PZ |
4427 | { |
4428 | vdev_t *rvd = spa->spa_root_vdev; | |
4429 | int need_update = B_FALSE; | |
4430 | ||
4431 | /* | |
4432 | * If the config cache is stale, or we have uninitialized | |
4433 | * metaslabs (see spa_vdev_add()), then update the config. | |
4434 | * | |
4435 | * If this is a verbatim import, trust the current | |
4436 | * in-core spa_config and update the disk labels. | |
4437 | */ | |
d2734cce | 4438 | if (update_config_cache || config_cache_txg != spa->spa_config_txg || |
4a0ee12a PZ |
4439 | spa->spa_load_state == SPA_LOAD_IMPORT || |
4440 | spa->spa_load_state == SPA_LOAD_RECOVER || | |
9eb7b46e PZ |
4441 | (spa->spa_import_flags & ZFS_IMPORT_VERBATIM)) |
4442 | need_update = B_TRUE; | |
4443 | ||
4444 | for (int c = 0; c < rvd->vdev_children; c++) | |
4445 | if (rvd->vdev_child[c]->vdev_ms_array == 0) | |
4446 | need_update = B_TRUE; | |
4447 | ||
4448 | /* | |
e1cfd73f | 4449 | * Update the config cache asynchronously in case we're the |
9eb7b46e PZ |
4450 | * root pool, in which case the config cache isn't writable yet. |
4451 | */ | |
4452 | if (need_update) | |
4453 | spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE); | |
4454 | } | |
4455 | ||
6cb8e530 PZ |
4456 | static void |
4457 | spa_ld_prepare_for_reload(spa_t *spa) | |
4458 | { | |
da92d5cb | 4459 | spa_mode_t mode = spa->spa_mode; |
6cb8e530 PZ |
4460 | int async_suspended = spa->spa_async_suspended; |
4461 | ||
4462 | spa_unload(spa); | |
4463 | spa_deactivate(spa); | |
4464 | spa_activate(spa, mode); | |
4465 | ||
4466 | /* | |
4467 | * We save the value of spa_async_suspended as it gets reset to 0 by | |
4468 | * spa_unload(). We want to restore it back to the original value before | |
4469 | * returning as we might be calling spa_async_resume() later. | |
4470 | */ | |
4471 | spa->spa_async_suspended = async_suspended; | |
4472 | } | |
4473 | ||
9eb7b46e | 4474 | static int |
d2734cce SD |
4475 | spa_ld_read_checkpoint_txg(spa_t *spa) |
4476 | { | |
4477 | uberblock_t checkpoint; | |
4478 | int error = 0; | |
4479 | ||
4480 | ASSERT0(spa->spa_checkpoint_txg); | |
4481 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); | |
4482 | ||
4483 | error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, | |
4484 | DMU_POOL_ZPOOL_CHECKPOINT, sizeof (uint64_t), | |
4485 | sizeof (uberblock_t) / sizeof (uint64_t), &checkpoint); | |
4486 | ||
4487 | if (error == ENOENT) | |
4488 | return (0); | |
4489 | ||
4490 | if (error != 0) | |
4491 | return (error); | |
4492 | ||
4493 | ASSERT3U(checkpoint.ub_txg, !=, 0); | |
4494 | ASSERT3U(checkpoint.ub_checkpoint_txg, !=, 0); | |
4495 | ASSERT3U(checkpoint.ub_timestamp, !=, 0); | |
4496 | spa->spa_checkpoint_txg = checkpoint.ub_txg; | |
4497 | spa->spa_checkpoint_info.sci_timestamp = checkpoint.ub_timestamp; | |
4498 | ||
4499 | return (0); | |
4500 | } | |
4501 | ||
4502 | static int | |
4503 | spa_ld_mos_init(spa_t *spa, spa_import_type_t type) | |
9eb7b46e PZ |
4504 | { |
4505 | int error = 0; | |
9eb7b46e | 4506 | |
4a0ee12a | 4507 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); |
6cb8e530 | 4508 | ASSERT(spa->spa_config_source != SPA_CONFIG_SRC_NONE); |
4a0ee12a | 4509 | |
9eb7b46e | 4510 | /* |
6cb8e530 PZ |
4511 | * Never trust the config that is provided unless we are assembling |
4512 | * a pool following a split. | |
4513 | * This means don't trust blkptrs and the vdev tree in general. This | |
4514 | * also effectively puts the spa in read-only mode since | |
4515 | * spa_writeable() checks for spa_trust_config to be true. | |
4516 | * We will later load a trusted config from the MOS. | |
9eb7b46e | 4517 | */ |
6cb8e530 PZ |
4518 | if (type != SPA_IMPORT_ASSEMBLE) |
4519 | spa->spa_trust_config = B_FALSE; | |
4520 | ||
9eb7b46e PZ |
4521 | /* |
4522 | * Parse the config provided to create a vdev tree. | |
4523 | */ | |
6cb8e530 | 4524 | error = spa_ld_parse_config(spa, type); |
9eb7b46e PZ |
4525 | if (error != 0) |
4526 | return (error); | |
4527 | ||
ca95f70d OF |
4528 | spa_import_progress_add(spa); |
4529 | ||
9eb7b46e PZ |
4530 | /* |
4531 | * Now that we have the vdev tree, try to open each vdev. This involves | |
4532 | * opening the underlying physical device, retrieving its geometry and | |
4533 | * probing the vdev with a dummy I/O. The state of each vdev will be set | |
4534 | * based on the success of those operations. After this we'll be ready | |
4535 | * to read from the vdevs. | |
4536 | */ | |
4537 | error = spa_ld_open_vdevs(spa); | |
4538 | if (error != 0) | |
4539 | return (error); | |
4540 | ||
4541 | /* | |
4542 | * Read the label of each vdev and make sure that the GUIDs stored | |
4543 | * there match the GUIDs in the config provided. | |
6cb8e530 PZ |
4544 | * If we're assembling a new pool that's been split off from an |
4545 | * existing pool, the labels haven't yet been updated so we skip | |
4546 | * validation for now. | |
9eb7b46e | 4547 | */ |
6cb8e530 PZ |
4548 | if (type != SPA_IMPORT_ASSEMBLE) { |
4549 | error = spa_ld_validate_vdevs(spa); | |
4550 | if (error != 0) | |
4551 | return (error); | |
4552 | } | |
9eb7b46e PZ |
4553 | |
4554 | /* | |
d2734cce SD |
4555 | * Read all vdev labels to find the best uberblock (i.e. latest, |
4556 | * unless spa_load_max_txg is set) and store it in spa_uberblock. We | |
4557 | * get the list of features required to read blkptrs in the MOS from | |
4558 | * the vdev label with the best uberblock and verify that our version | |
4559 | * of zfs supports them all. | |
9eb7b46e | 4560 | */ |
6cb8e530 | 4561 | error = spa_ld_select_uberblock(spa, type); |
9eb7b46e PZ |
4562 | if (error != 0) |
4563 | return (error); | |
4564 | ||
4565 | /* | |
4566 | * Pass that uberblock to the dsl_pool layer which will open the root | |
4567 | * blkptr. This blkptr points to the latest version of the MOS and will | |
4568 | * allow us to read its contents. | |
4569 | */ | |
4570 | error = spa_ld_open_rootbp(spa); | |
4571 | if (error != 0) | |
4572 | return (error); | |
4573 | ||
d2734cce SD |
4574 | return (0); |
4575 | } | |
4576 | ||
4577 | static int | |
4578 | spa_ld_checkpoint_rewind(spa_t *spa) | |
4579 | { | |
4580 | uberblock_t checkpoint; | |
4581 | int error = 0; | |
4582 | ||
4583 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); | |
4584 | ASSERT(spa->spa_import_flags & ZFS_IMPORT_CHECKPOINT); | |
4585 | ||
4586 | error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, | |
4587 | DMU_POOL_ZPOOL_CHECKPOINT, sizeof (uint64_t), | |
4588 | sizeof (uberblock_t) / sizeof (uint64_t), &checkpoint); | |
4589 | ||
4590 | if (error != 0) { | |
4591 | spa_load_failed(spa, "unable to retrieve checkpointed " | |
4592 | "uberblock from the MOS config [error=%d]", error); | |
4593 | ||
4594 | if (error == ENOENT) | |
4595 | error = ZFS_ERR_NO_CHECKPOINT; | |
4596 | ||
4597 | return (error); | |
4598 | } | |
4599 | ||
4600 | ASSERT3U(checkpoint.ub_txg, <, spa->spa_uberblock.ub_txg); | |
4601 | ASSERT3U(checkpoint.ub_txg, ==, checkpoint.ub_checkpoint_txg); | |
4602 | ||
4603 | /* | |
4604 | * We need to update the txg and timestamp of the checkpointed | |
4605 | * uberblock to be higher than the latest one. This ensures that | |
4606 | * the checkpointed uberblock is selected if we were to close and | |
4607 | * reopen the pool right after we've written it in the vdev labels. | |
4608 | * (also see block comment in vdev_uberblock_compare) | |
4609 | */ | |
4610 | checkpoint.ub_txg = spa->spa_uberblock.ub_txg + 1; | |
4611 | checkpoint.ub_timestamp = gethrestime_sec(); | |
4612 | ||
4613 | /* | |
4614 | * Set current uberblock to be the checkpointed uberblock. | |
4615 | */ | |
4616 | spa->spa_uberblock = checkpoint; | |
4617 | ||
4618 | /* | |
4619 | * If we are doing a normal rewind, then the pool is open for | |
4620 | * writing and we sync the "updated" checkpointed uberblock to | |
4621 | * disk. Once this is done, we've basically rewound the whole | |
4622 | * pool and there is no way back. | |
4623 | * | |
4624 | * There are cases when we don't want to attempt and sync the | |
4625 | * checkpointed uberblock to disk because we are opening a | |
4626 | * pool as read-only. Specifically, verifying the checkpointed | |
4627 | * state with zdb, and importing the checkpointed state to get | |
4628 | * a "preview" of its content. | |
4629 | */ | |
4630 | if (spa_writeable(spa)) { | |
4631 | vdev_t *rvd = spa->spa_root_vdev; | |
4632 | ||
4633 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); | |
4634 | vdev_t *svd[SPA_SYNC_MIN_VDEVS] = { NULL }; | |
4635 | int svdcount = 0; | |
4636 | int children = rvd->vdev_children; | |
29274c9f | 4637 | int c0 = random_in_range(children); |
d2734cce SD |
4638 | |
4639 | for (int c = 0; c < children; c++) { | |
4640 | vdev_t *vd = rvd->vdev_child[(c0 + c) % children]; | |
4641 | ||
4642 | /* Stop when revisiting the first vdev */ | |
4643 | if (c > 0 && svd[0] == vd) | |
4644 | break; | |
4645 | ||
4646 | if (vd->vdev_ms_array == 0 || vd->vdev_islog || | |
4647 | !vdev_is_concrete(vd)) | |
4648 | continue; | |
4649 | ||
4650 | svd[svdcount++] = vd; | |
4651 | if (svdcount == SPA_SYNC_MIN_VDEVS) | |
4652 | break; | |
4653 | } | |
4654 | error = vdev_config_sync(svd, svdcount, spa->spa_first_txg); | |
4655 | if (error == 0) | |
4656 | spa->spa_last_synced_guid = rvd->vdev_guid; | |
4657 | spa_config_exit(spa, SCL_ALL, FTAG); | |
4658 | ||
4659 | if (error != 0) { | |
4660 | spa_load_failed(spa, "failed to write checkpointed " | |
4661 | "uberblock to the vdev labels [error=%d]", error); | |
4662 | return (error); | |
4663 | } | |
4664 | } | |
4665 | ||
4666 | return (0); | |
4667 | } | |
4668 | ||
4669 | static int | |
4670 | spa_ld_mos_with_trusted_config(spa_t *spa, spa_import_type_t type, | |
4671 | boolean_t *update_config_cache) | |
4672 | { | |
4673 | int error; | |
4674 | ||
4675 | /* | |
4676 | * Parse the config for pool, open and validate vdevs, | |
4677 | * select an uberblock, and use that uberblock to open | |
4678 | * the MOS. | |
4679 | */ | |
4680 | error = spa_ld_mos_init(spa, type); | |
4681 | if (error != 0) | |
4682 | return (error); | |
4683 | ||
9eb7b46e | 4684 | /* |
6cb8e530 PZ |
4685 | * Retrieve the trusted config stored in the MOS and use it to create |
4686 | * a new, exact version of the vdev tree, then reopen all vdevs. | |
9eb7b46e | 4687 | */ |
d2734cce | 4688 | error = spa_ld_trusted_config(spa, type, B_FALSE); |
6cb8e530 | 4689 | if (error == EAGAIN) { |
d2734cce SD |
4690 | if (update_config_cache != NULL) |
4691 | *update_config_cache = B_TRUE; | |
4692 | ||
6cb8e530 PZ |
4693 | /* |
4694 | * Redo the loading process with the trusted config if it is | |
4695 | * too different from the untrusted config. | |
4696 | */ | |
4697 | spa_ld_prepare_for_reload(spa); | |
d2734cce SD |
4698 | spa_load_note(spa, "RELOADING"); |
4699 | error = spa_ld_mos_init(spa, type); | |
4700 | if (error != 0) | |
4701 | return (error); | |
4702 | ||
4703 | error = spa_ld_trusted_config(spa, type, B_TRUE); | |
4704 | if (error != 0) | |
4705 | return (error); | |
4706 | ||
6cb8e530 | 4707 | } else if (error != 0) { |
9eb7b46e | 4708 | return (error); |
6cb8e530 | 4709 | } |
9eb7b46e | 4710 | |
d2734cce SD |
4711 | return (0); |
4712 | } | |
4713 | ||
4714 | /* | |
4715 | * Load an existing storage pool, using the config provided. This config | |
4716 | * describes which vdevs are part of the pool and is later validated against | |
4717 | * partial configs present in each vdev's label and an entire copy of the | |
4718 | * config stored in the MOS. | |
4719 | */ | |
4720 | static int | |
4721 | spa_load_impl(spa_t *spa, spa_import_type_t type, char **ereport) | |
4722 | { | |
4723 | int error = 0; | |
4724 | boolean_t missing_feat_write = B_FALSE; | |
4725 | boolean_t checkpoint_rewind = | |
4726 | (spa->spa_import_flags & ZFS_IMPORT_CHECKPOINT); | |
4727 | boolean_t update_config_cache = B_FALSE; | |
4728 | ||
4729 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); | |
4730 | ASSERT(spa->spa_config_source != SPA_CONFIG_SRC_NONE); | |
4731 | ||
4732 | spa_load_note(spa, "LOADING"); | |
4733 | ||
4734 | error = spa_ld_mos_with_trusted_config(spa, type, &update_config_cache); | |
4735 | if (error != 0) | |
4736 | return (error); | |
4737 | ||
4738 | /* | |
4739 | * If we are rewinding to the checkpoint then we need to repeat | |
4740 | * everything we've done so far in this function but this time | |
4741 | * selecting the checkpointed uberblock and using that to open | |
4742 | * the MOS. | |
4743 | */ | |
4744 | if (checkpoint_rewind) { | |
4745 | /* | |
4746 | * If we are rewinding to the checkpoint update config cache | |
4747 | * anyway. | |
4748 | */ | |
4749 | update_config_cache = B_TRUE; | |
4750 | ||
4751 | /* | |
4752 | * Extract the checkpointed uberblock from the current MOS | |
4753 | * and use this as the pool's uberblock from now on. If the | |
4754 | * pool is imported as writeable we also write the checkpoint | |
4755 | * uberblock to the labels, making the rewind permanent. | |
4756 | */ | |
4757 | error = spa_ld_checkpoint_rewind(spa); | |
4758 | if (error != 0) | |
4759 | return (error); | |
4760 | ||
4761 | /* | |
e1cfd73f | 4762 | * Redo the loading process again with the |
d2734cce SD |
4763 | * checkpointed uberblock. |
4764 | */ | |
4765 | spa_ld_prepare_for_reload(spa); | |
4766 | spa_load_note(spa, "LOADING checkpointed uberblock"); | |
4767 | error = spa_ld_mos_with_trusted_config(spa, type, NULL); | |
4768 | if (error != 0) | |
4769 | return (error); | |
4770 | } | |
4771 | ||
4772 | /* | |
4773 | * Retrieve the checkpoint txg if the pool has a checkpoint. | |
4774 | */ | |
4775 | error = spa_ld_read_checkpoint_txg(spa); | |
4776 | if (error != 0) | |
4777 | return (error); | |
4778 | ||
9eb7b46e PZ |
4779 | /* |
4780 | * Retrieve the mapping of indirect vdevs. Those vdevs were removed | |
4781 | * from the pool and their contents were re-mapped to other vdevs. Note | |
4782 | * that everything that we read before this step must have been | |
4783 | * rewritten on concrete vdevs after the last device removal was | |
4784 | * initiated. Otherwise we could be reading from indirect vdevs before | |
4785 | * we have loaded their mappings. | |
4786 | */ | |
4787 | error = spa_ld_open_indirect_vdev_metadata(spa); | |
4788 | if (error != 0) | |
4789 | return (error); | |
4790 | ||
4791 | /* | |
4792 | * Retrieve the full list of active features from the MOS and check if | |
4793 | * they are all supported. | |
4794 | */ | |
4a0ee12a | 4795 | error = spa_ld_check_features(spa, &missing_feat_write); |
9eb7b46e PZ |
4796 | if (error != 0) |
4797 | return (error); | |
4798 | ||
4799 | /* | |
4800 | * Load several special directories from the MOS needed by the dsl_pool | |
4801 | * layer. | |
4802 | */ | |
4803 | error = spa_ld_load_special_directories(spa); | |
4804 | if (error != 0) | |
4805 | return (error); | |
4806 | ||
9eb7b46e PZ |
4807 | /* |
4808 | * Retrieve pool properties from the MOS. | |
4809 | */ | |
4810 | error = spa_ld_get_props(spa); | |
4811 | if (error != 0) | |
4812 | return (error); | |
4813 | ||
4814 | /* | |
4815 | * Retrieve the list of auxiliary devices - cache devices and spares - | |
4816 | * and open them. | |
4817 | */ | |
4818 | error = spa_ld_open_aux_vdevs(spa, type); | |
4819 | if (error != 0) | |
4820 | return (error); | |
4821 | ||
4822 | /* | |
4823 | * Load the metadata for all vdevs. Also check if unopenable devices | |
4824 | * should be autoreplaced. | |
4825 | */ | |
4a0ee12a | 4826 | error = spa_ld_load_vdev_metadata(spa); |
9eb7b46e PZ |
4827 | if (error != 0) |
4828 | return (error); | |
4829 | ||
4830 | error = spa_ld_load_dedup_tables(spa); | |
4831 | if (error != 0) | |
4832 | return (error); | |
4833 | ||
4834 | /* | |
4835 | * Verify the logs now to make sure we don't have any unexpected errors | |
4836 | * when we claim log blocks later. | |
4837 | */ | |
4838 | error = spa_ld_verify_logs(spa, type, ereport); | |
4839 | if (error != 0) | |
4840 | return (error); | |
4841 | ||
9ae529ec | 4842 | if (missing_feat_write) { |
6cb8e530 | 4843 | ASSERT(spa->spa_load_state == SPA_LOAD_TRYIMPORT); |
9ae529ec CS |
4844 | |
4845 | /* | |
4846 | * At this point, we know that we can open the pool in | |
4847 | * read-only mode but not read-write mode. We now have enough | |
4848 | * information and can return to userland. | |
4849 | */ | |
9eb7b46e PZ |
4850 | return (spa_vdev_err(spa->spa_root_vdev, VDEV_AUX_UNSUP_FEAT, |
4851 | ENOTSUP)); | |
9ae529ec CS |
4852 | } |
4853 | ||
572e2857 | 4854 | /* |
9eb7b46e PZ |
4855 | * Traverse the last txgs to make sure the pool was left off in a safe |
4856 | * state. When performing an extreme rewind, we verify the whole pool, | |
4857 | * which can take a very long time. | |
572e2857 | 4858 | */ |
4a0ee12a | 4859 | error = spa_ld_verify_pool_data(spa); |
9eb7b46e PZ |
4860 | if (error != 0) |
4861 | return (error); | |
572e2857 | 4862 | |
9eb7b46e PZ |
4863 | /* |
4864 | * Calculate the deflated space for the pool. This must be done before | |
4865 | * we write anything to the pool because we'd need to update the space | |
4866 | * accounting using the deflated sizes. | |
4867 | */ | |
4868 | spa_update_dspace(spa); | |
4869 | ||
4870 | /* | |
4871 | * We have now retrieved all the information we needed to open the | |
4872 | * pool. If we are importing the pool in read-write mode, a few | |
4873 | * additional steps must be performed to finish the import. | |
4874 | */ | |
6cb8e530 | 4875 | if (spa_writeable(spa) && (spa->spa_load_state == SPA_LOAD_RECOVER || |
428870ff | 4876 | spa->spa_load_max_txg == UINT64_MAX)) { |
6cb8e530 PZ |
4877 | uint64_t config_cache_txg = spa->spa_config_txg; |
4878 | ||
4879 | ASSERT(spa->spa_load_state != SPA_LOAD_TRYIMPORT); | |
34dc7c2f | 4880 | |
d2734cce SD |
4881 | /* |
4882 | * In case of a checkpoint rewind, log the original txg | |
4883 | * of the checkpointed uberblock. | |
4884 | */ | |
4885 | if (checkpoint_rewind) { | |
4886 | spa_history_log_internal(spa, "checkpoint rewind", | |
4887 | NULL, "rewound state to txg=%llu", | |
4888 | (u_longlong_t)spa->spa_uberblock.ub_checkpoint_txg); | |
4889 | } | |
4890 | ||
34dc7c2f | 4891 | /* |
9eb7b46e | 4892 | * Traverse the ZIL and claim all blocks. |
34dc7c2f | 4893 | */ |
9eb7b46e | 4894 | spa_ld_claim_log_blocks(spa); |
428870ff | 4895 | |
9eb7b46e PZ |
4896 | /* |
4897 | * Kick-off the syncing thread. | |
4898 | */ | |
34dc7c2f BB |
4899 | spa->spa_sync_on = B_TRUE; |
4900 | txg_sync_start(spa->spa_dsl_pool); | |
379ca9cf | 4901 | mmp_thread_start(spa); |
34dc7c2f BB |
4902 | |
4903 | /* | |
428870ff BB |
4904 | * Wait for all claims to sync. We sync up to the highest |
4905 | * claimed log block birth time so that claimed log blocks | |
4906 | * don't appear to be from the future. spa_claim_max_txg | |
9eb7b46e PZ |
4907 | * will have been set for us by ZIL traversal operations |
4908 | * performed above. | |
34dc7c2f | 4909 | */ |
428870ff | 4910 | txg_wait_synced(spa->spa_dsl_pool, spa->spa_claim_max_txg); |
34dc7c2f BB |
4911 | |
4912 | /* | |
9eb7b46e PZ |
4913 | * Check if we need to request an update of the config. On the |
4914 | * next sync, we would update the config stored in vdev labels | |
4915 | * and the cachefile (by default /etc/zfs/zpool.cache). | |
34dc7c2f | 4916 | */ |
6cb8e530 | 4917 | spa_ld_check_for_config_update(spa, config_cache_txg, |
d2734cce | 4918 | update_config_cache); |
fb5f0bc8 BB |
4919 | |
4920 | /* | |
9a49d3f3 BB |
4921 | * Check if a rebuild was in progress and if so resume it. |
4922 | * Then check all DTLs to see if anything needs resilvering. | |
4923 | * The resilver will be deferred if a rebuild was started. | |
fb5f0bc8 | 4924 | */ |
9a49d3f3 BB |
4925 | if (vdev_rebuild_active(spa->spa_root_vdev)) { |
4926 | vdev_rebuild_restart(spa); | |
4927 | } else if (!dsl_scan_resilvering(spa->spa_dsl_pool) && | |
4928 | vdev_resilver_needed(spa->spa_root_vdev, NULL, NULL)) { | |
fb5f0bc8 | 4929 | spa_async_request(spa, SPA_ASYNC_RESILVER); |
9a49d3f3 | 4930 | } |
428870ff | 4931 | |
6f1ffb06 MA |
4932 | /* |
4933 | * Log the fact that we booted up (so that we can detect if | |
4934 | * we rebooted in the middle of an operation). | |
4935 | */ | |
d5e024cb | 4936 | spa_history_log_version(spa, "open", NULL); |
6f1ffb06 | 4937 | |
9b2266e3 SD |
4938 | spa_restart_removal(spa); |
4939 | spa_spawn_aux_threads(spa); | |
4940 | ||
428870ff BB |
4941 | /* |
4942 | * Delete any inconsistent datasets. | |
9b2266e3 SD |
4943 | * |
4944 | * Note: | |
4945 | * Since we may be issuing deletes for clones here, | |
4946 | * we make sure to do so after we've spawned all the | |
4947 | * auxiliary threads above (from which the livelist | |
4948 | * deletion zthr is part of). | |
428870ff BB |
4949 | */ |
4950 | (void) dmu_objset_find(spa_name(spa), | |
4951 | dsl_destroy_inconsistent, NULL, DS_FIND_CHILDREN); | |
4952 | ||
4953 | /* | |
4954 | * Clean up any stale temporary dataset userrefs. | |
4955 | */ | |
4956 | dsl_pool_clean_tmp_userrefs(spa->spa_dsl_pool); | |
a1d477c2 | 4957 | |
619f0976 GW |
4958 | spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); |
4959 | vdev_initialize_restart(spa->spa_root_vdev); | |
1b939560 BB |
4960 | vdev_trim_restart(spa->spa_root_vdev); |
4961 | vdev_autotrim_restart(spa); | |
619f0976 | 4962 | spa_config_exit(spa, SCL_CONFIG, FTAG); |
34dc7c2f BB |
4963 | } |
4964 | ||
ca95f70d | 4965 | spa_import_progress_remove(spa_guid(spa)); |
77f6826b GA |
4966 | spa_async_request(spa, SPA_ASYNC_L2CACHE_REBUILD); |
4967 | ||
4a0ee12a PZ |
4968 | spa_load_note(spa, "LOADED"); |
4969 | ||
428870ff BB |
4970 | return (0); |
4971 | } | |
34dc7c2f | 4972 | |
428870ff | 4973 | static int |
6cb8e530 | 4974 | spa_load_retry(spa_t *spa, spa_load_state_t state) |
428870ff | 4975 | { |
da92d5cb | 4976 | spa_mode_t mode = spa->spa_mode; |
572e2857 | 4977 | |
428870ff BB |
4978 | spa_unload(spa); |
4979 | spa_deactivate(spa); | |
4980 | ||
dea377c0 | 4981 | spa->spa_load_max_txg = spa->spa_uberblock.ub_txg - 1; |
428870ff | 4982 | |
572e2857 | 4983 | spa_activate(spa, mode); |
428870ff BB |
4984 | spa_async_suspend(spa); |
4985 | ||
4a0ee12a PZ |
4986 | spa_load_note(spa, "spa_load_retry: rewind, max txg: %llu", |
4987 | (u_longlong_t)spa->spa_load_max_txg); | |
4988 | ||
6cb8e530 | 4989 | return (spa_load(spa, state, SPA_IMPORT_EXISTING)); |
428870ff BB |
4990 | } |
4991 | ||
9ae529ec CS |
4992 | /* |
4993 | * If spa_load() fails this function will try loading prior txg's. If | |
4994 | * 'state' is SPA_LOAD_RECOVER and one of these loads succeeds the pool | |
4995 | * will be rewound to that txg. If 'state' is not SPA_LOAD_RECOVER this | |
4996 | * function will not rewind the pool and will return the same error as | |
4997 | * spa_load(). | |
4998 | */ | |
428870ff | 4999 | static int |
6cb8e530 PZ |
5000 | spa_load_best(spa_t *spa, spa_load_state_t state, uint64_t max_request, |
5001 | int rewind_flags) | |
428870ff | 5002 | { |
9ae529ec | 5003 | nvlist_t *loadinfo = NULL; |
428870ff BB |
5004 | nvlist_t *config = NULL; |
5005 | int load_error, rewind_error; | |
5006 | uint64_t safe_rewind_txg; | |
5007 | uint64_t min_txg; | |
5008 | ||
5009 | if (spa->spa_load_txg && state == SPA_LOAD_RECOVER) { | |
5010 | spa->spa_load_max_txg = spa->spa_load_txg; | |
5011 | spa_set_log_state(spa, SPA_LOG_CLEAR); | |
5012 | } else { | |
5013 | spa->spa_load_max_txg = max_request; | |
dea377c0 MA |
5014 | if (max_request != UINT64_MAX) |
5015 | spa->spa_extreme_rewind = B_TRUE; | |
428870ff BB |
5016 | } |
5017 | ||
6cb8e530 | 5018 | load_error = rewind_error = spa_load(spa, state, SPA_IMPORT_EXISTING); |
428870ff BB |
5019 | if (load_error == 0) |
5020 | return (0); | |
d2734cce SD |
5021 | if (load_error == ZFS_ERR_NO_CHECKPOINT) { |
5022 | /* | |
5023 | * When attempting checkpoint-rewind on a pool with no | |
5024 | * checkpoint, we should not attempt to load uberblocks | |
5025 | * from previous txgs when spa_load fails. | |
5026 | */ | |
5027 | ASSERT(spa->spa_import_flags & ZFS_IMPORT_CHECKPOINT); | |
ca95f70d | 5028 | spa_import_progress_remove(spa_guid(spa)); |
d2734cce SD |
5029 | return (load_error); |
5030 | } | |
428870ff BB |
5031 | |
5032 | if (spa->spa_root_vdev != NULL) | |
5033 | config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); | |
5034 | ||
5035 | spa->spa_last_ubsync_txg = spa->spa_uberblock.ub_txg; | |
5036 | spa->spa_last_ubsync_txg_ts = spa->spa_uberblock.ub_timestamp; | |
5037 | ||
5038 | if (rewind_flags & ZPOOL_NEVER_REWIND) { | |
5039 | nvlist_free(config); | |
ca95f70d | 5040 | spa_import_progress_remove(spa_guid(spa)); |
428870ff BB |
5041 | return (load_error); |
5042 | } | |
5043 | ||
9ae529ec CS |
5044 | if (state == SPA_LOAD_RECOVER) { |
5045 | /* Price of rolling back is discarding txgs, including log */ | |
428870ff | 5046 | spa_set_log_state(spa, SPA_LOG_CLEAR); |
9ae529ec CS |
5047 | } else { |
5048 | /* | |
5049 | * If we aren't rolling back save the load info from our first | |
5050 | * import attempt so that we can restore it after attempting | |
5051 | * to rewind. | |
5052 | */ | |
5053 | loadinfo = spa->spa_load_info; | |
5054 | spa->spa_load_info = fnvlist_alloc(); | |
5055 | } | |
428870ff BB |
5056 | |
5057 | spa->spa_load_max_txg = spa->spa_last_ubsync_txg; | |
5058 | safe_rewind_txg = spa->spa_last_ubsync_txg - TXG_DEFER_SIZE; | |
5059 | min_txg = (rewind_flags & ZPOOL_EXTREME_REWIND) ? | |
5060 | TXG_INITIAL : safe_rewind_txg; | |
5061 | ||
5062 | /* | |
5063 | * Continue as long as we're finding errors, we're still within | |
5064 | * the acceptable rewind range, and we're still finding uberblocks | |
5065 | */ | |
5066 | while (rewind_error && spa->spa_uberblock.ub_txg >= min_txg && | |
5067 | spa->spa_uberblock.ub_txg <= spa->spa_load_max_txg) { | |
5068 | if (spa->spa_load_max_txg < safe_rewind_txg) | |
5069 | spa->spa_extreme_rewind = B_TRUE; | |
6cb8e530 | 5070 | rewind_error = spa_load_retry(spa, state); |
428870ff BB |
5071 | } |
5072 | ||
428870ff BB |
5073 | spa->spa_extreme_rewind = B_FALSE; |
5074 | spa->spa_load_max_txg = UINT64_MAX; | |
5075 | ||
5076 | if (config && (rewind_error || state != SPA_LOAD_RECOVER)) | |
5077 | spa_config_set(spa, config); | |
ee6370a7 | 5078 | else |
5079 | nvlist_free(config); | |
428870ff | 5080 | |
9ae529ec CS |
5081 | if (state == SPA_LOAD_RECOVER) { |
5082 | ASSERT3P(loadinfo, ==, NULL); | |
ca95f70d | 5083 | spa_import_progress_remove(spa_guid(spa)); |
9ae529ec CS |
5084 | return (rewind_error); |
5085 | } else { | |
5086 | /* Store the rewind info as part of the initial load info */ | |
5087 | fnvlist_add_nvlist(loadinfo, ZPOOL_CONFIG_REWIND_INFO, | |
5088 | spa->spa_load_info); | |
5089 | ||
5090 | /* Restore the initial load info */ | |
5091 | fnvlist_free(spa->spa_load_info); | |
5092 | spa->spa_load_info = loadinfo; | |
5093 | ||
ca95f70d | 5094 | spa_import_progress_remove(spa_guid(spa)); |
9ae529ec CS |
5095 | return (load_error); |
5096 | } | |
34dc7c2f BB |
5097 | } |
5098 | ||
5099 | /* | |
5100 | * Pool Open/Import | |
5101 | * | |
5102 | * The import case is identical to an open except that the configuration is sent | |
5103 | * down from userland, instead of grabbed from the configuration cache. For the | |
5104 | * case of an open, the pool configuration will exist in the | |
5105 | * POOL_STATE_UNINITIALIZED state. | |
5106 | * | |
5107 | * The stats information (gen/count/ustats) is used to gather vdev statistics at | |
5108 | * the same time open the pool, without having to keep around the spa_t in some | |
5109 | * ambiguous state. | |
5110 | */ | |
5111 | static int | |
428870ff BB |
5112 | spa_open_common(const char *pool, spa_t **spapp, void *tag, nvlist_t *nvpolicy, |
5113 | nvlist_t **config) | |
34dc7c2f BB |
5114 | { |
5115 | spa_t *spa; | |
572e2857 | 5116 | spa_load_state_t state = SPA_LOAD_OPEN; |
34dc7c2f | 5117 | int error; |
34dc7c2f | 5118 | int locked = B_FALSE; |
526af785 | 5119 | int firstopen = B_FALSE; |
34dc7c2f BB |
5120 | |
5121 | *spapp = NULL; | |
5122 | ||
5123 | /* | |
5124 | * As disgusting as this is, we need to support recursive calls to this | |
5125 | * function because dsl_dir_open() is called during spa_load(), and ends | |
5126 | * up calling spa_open() again. The real fix is to figure out how to | |
5127 | * avoid dsl_dir_open() calling this in the first place. | |
5128 | */ | |
c25b8f99 | 5129 | if (MUTEX_NOT_HELD(&spa_namespace_lock)) { |
34dc7c2f BB |
5130 | mutex_enter(&spa_namespace_lock); |
5131 | locked = B_TRUE; | |
5132 | } | |
5133 | ||
5134 | if ((spa = spa_lookup(pool)) == NULL) { | |
5135 | if (locked) | |
5136 | mutex_exit(&spa_namespace_lock); | |
2e528b49 | 5137 | return (SET_ERROR(ENOENT)); |
34dc7c2f | 5138 | } |
428870ff | 5139 | |
34dc7c2f | 5140 | if (spa->spa_state == POOL_STATE_UNINITIALIZED) { |
8a393be3 | 5141 | zpool_load_policy_t policy; |
428870ff | 5142 | |
526af785 PJD |
5143 | firstopen = B_TRUE; |
5144 | ||
8a393be3 | 5145 | zpool_get_load_policy(nvpolicy ? nvpolicy : spa->spa_config, |
428870ff | 5146 | &policy); |
8a393be3 | 5147 | if (policy.zlp_rewind & ZPOOL_DO_REWIND) |
428870ff | 5148 | state = SPA_LOAD_RECOVER; |
34dc7c2f | 5149 | |
fb5f0bc8 | 5150 | spa_activate(spa, spa_mode_global); |
34dc7c2f | 5151 | |
428870ff BB |
5152 | if (state != SPA_LOAD_RECOVER) |
5153 | spa->spa_last_ubsync_txg = spa->spa_load_txg = 0; | |
6cb8e530 | 5154 | spa->spa_config_source = SPA_CONFIG_SRC_CACHEFILE; |
428870ff | 5155 | |
4a0ee12a | 5156 | zfs_dbgmsg("spa_open_common: opening %s", pool); |
8a393be3 PZ |
5157 | error = spa_load_best(spa, state, policy.zlp_txg, |
5158 | policy.zlp_rewind); | |
34dc7c2f BB |
5159 | |
5160 | if (error == EBADF) { | |
5161 | /* | |
5162 | * If vdev_validate() returns failure (indicated by | |
5163 | * EBADF), it indicates that one of the vdevs indicates | |
5164 | * that the pool has been exported or destroyed. If | |
5165 | * this is the case, the config cache is out of sync and | |
5166 | * we should remove the pool from the namespace. | |
5167 | */ | |
34dc7c2f BB |
5168 | spa_unload(spa); |
5169 | spa_deactivate(spa); | |
a1d477c2 | 5170 | spa_write_cachefile(spa, B_TRUE, B_TRUE); |
34dc7c2f | 5171 | spa_remove(spa); |
34dc7c2f BB |
5172 | if (locked) |
5173 | mutex_exit(&spa_namespace_lock); | |
2e528b49 | 5174 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
5175 | } |
5176 | ||
5177 | if (error) { | |
5178 | /* | |
5179 | * We can't open the pool, but we still have useful | |
5180 | * information: the state of each vdev after the | |
5181 | * attempted vdev_open(). Return this to the user. | |
5182 | */ | |
572e2857 | 5183 | if (config != NULL && spa->spa_config) { |
428870ff | 5184 | VERIFY(nvlist_dup(spa->spa_config, config, |
79c76d5b | 5185 | KM_SLEEP) == 0); |
572e2857 BB |
5186 | VERIFY(nvlist_add_nvlist(*config, |
5187 | ZPOOL_CONFIG_LOAD_INFO, | |
5188 | spa->spa_load_info) == 0); | |
5189 | } | |
34dc7c2f BB |
5190 | spa_unload(spa); |
5191 | spa_deactivate(spa); | |
428870ff | 5192 | spa->spa_last_open_failed = error; |
34dc7c2f BB |
5193 | if (locked) |
5194 | mutex_exit(&spa_namespace_lock); | |
5195 | *spapp = NULL; | |
5196 | return (error); | |
34dc7c2f | 5197 | } |
34dc7c2f BB |
5198 | } |
5199 | ||
5200 | spa_open_ref(spa, tag); | |
5201 | ||
b128c09f | 5202 | if (config != NULL) |
34dc7c2f | 5203 | *config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); |
34dc7c2f | 5204 | |
572e2857 BB |
5205 | /* |
5206 | * If we've recovered the pool, pass back any information we | |
5207 | * gathered while doing the load. | |
5208 | */ | |
5209 | if (state == SPA_LOAD_RECOVER) { | |
5210 | VERIFY(nvlist_add_nvlist(*config, ZPOOL_CONFIG_LOAD_INFO, | |
5211 | spa->spa_load_info) == 0); | |
5212 | } | |
5213 | ||
428870ff BB |
5214 | if (locked) { |
5215 | spa->spa_last_open_failed = 0; | |
5216 | spa->spa_last_ubsync_txg = 0; | |
5217 | spa->spa_load_txg = 0; | |
5218 | mutex_exit(&spa_namespace_lock); | |
5219 | } | |
5220 | ||
526af785 | 5221 | if (firstopen) |
ec213971 | 5222 | zvol_create_minors_recursive(spa_name(spa)); |
526af785 | 5223 | |
428870ff BB |
5224 | *spapp = spa; |
5225 | ||
34dc7c2f BB |
5226 | return (0); |
5227 | } | |
5228 | ||
428870ff BB |
5229 | int |
5230 | spa_open_rewind(const char *name, spa_t **spapp, void *tag, nvlist_t *policy, | |
5231 | nvlist_t **config) | |
5232 | { | |
5233 | return (spa_open_common(name, spapp, tag, policy, config)); | |
5234 | } | |
5235 | ||
34dc7c2f BB |
5236 | int |
5237 | spa_open(const char *name, spa_t **spapp, void *tag) | |
5238 | { | |
428870ff | 5239 | return (spa_open_common(name, spapp, tag, NULL, NULL)); |
34dc7c2f BB |
5240 | } |
5241 | ||
5242 | /* | |
5243 | * Lookup the given spa_t, incrementing the inject count in the process, | |
5244 | * preventing it from being exported or destroyed. | |
5245 | */ | |
5246 | spa_t * | |
5247 | spa_inject_addref(char *name) | |
5248 | { | |
5249 | spa_t *spa; | |
5250 | ||
5251 | mutex_enter(&spa_namespace_lock); | |
5252 | if ((spa = spa_lookup(name)) == NULL) { | |
5253 | mutex_exit(&spa_namespace_lock); | |
5254 | return (NULL); | |
5255 | } | |
5256 | spa->spa_inject_ref++; | |
5257 | mutex_exit(&spa_namespace_lock); | |
5258 | ||
5259 | return (spa); | |
5260 | } | |
5261 | ||
5262 | void | |
5263 | spa_inject_delref(spa_t *spa) | |
5264 | { | |
5265 | mutex_enter(&spa_namespace_lock); | |
5266 | spa->spa_inject_ref--; | |
5267 | mutex_exit(&spa_namespace_lock); | |
5268 | } | |
5269 | ||
5270 | /* | |
5271 | * Add spares device information to the nvlist. | |
5272 | */ | |
5273 | static void | |
5274 | spa_add_spares(spa_t *spa, nvlist_t *config) | |
5275 | { | |
5276 | nvlist_t **spares; | |
5277 | uint_t i, nspares; | |
5278 | nvlist_t *nvroot; | |
5279 | uint64_t guid; | |
5280 | vdev_stat_t *vs; | |
5281 | uint_t vsc; | |
5282 | uint64_t pool; | |
5283 | ||
9babb374 BB |
5284 | ASSERT(spa_config_held(spa, SCL_CONFIG, RW_READER)); |
5285 | ||
34dc7c2f BB |
5286 | if (spa->spa_spares.sav_count == 0) |
5287 | return; | |
5288 | ||
5289 | VERIFY(nvlist_lookup_nvlist(config, | |
5290 | ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); | |
5291 | VERIFY(nvlist_lookup_nvlist_array(spa->spa_spares.sav_config, | |
5292 | ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); | |
5293 | if (nspares != 0) { | |
5294 | VERIFY(nvlist_add_nvlist_array(nvroot, | |
5295 | ZPOOL_CONFIG_SPARES, spares, nspares) == 0); | |
5296 | VERIFY(nvlist_lookup_nvlist_array(nvroot, | |
5297 | ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0); | |
5298 | ||
5299 | /* | |
5300 | * Go through and find any spares which have since been | |
5301 | * repurposed as an active spare. If this is the case, update | |
5302 | * their status appropriately. | |
5303 | */ | |
5304 | for (i = 0; i < nspares; i++) { | |
5305 | VERIFY(nvlist_lookup_uint64(spares[i], | |
5306 | ZPOOL_CONFIG_GUID, &guid) == 0); | |
b128c09f BB |
5307 | if (spa_spare_exists(guid, &pool, NULL) && |
5308 | pool != 0ULL) { | |
34dc7c2f | 5309 | VERIFY(nvlist_lookup_uint64_array( |
428870ff | 5310 | spares[i], ZPOOL_CONFIG_VDEV_STATS, |
34dc7c2f BB |
5311 | (uint64_t **)&vs, &vsc) == 0); |
5312 | vs->vs_state = VDEV_STATE_CANT_OPEN; | |
5313 | vs->vs_aux = VDEV_AUX_SPARED; | |
5314 | } | |
5315 | } | |
5316 | } | |
5317 | } | |
5318 | ||
5319 | /* | |
5320 | * Add l2cache device information to the nvlist, including vdev stats. | |
5321 | */ | |
5322 | static void | |
5323 | spa_add_l2cache(spa_t *spa, nvlist_t *config) | |
5324 | { | |
5325 | nvlist_t **l2cache; | |
5326 | uint_t i, j, nl2cache; | |
5327 | nvlist_t *nvroot; | |
5328 | uint64_t guid; | |
5329 | vdev_t *vd; | |
5330 | vdev_stat_t *vs; | |
5331 | uint_t vsc; | |
5332 | ||
9babb374 BB |
5333 | ASSERT(spa_config_held(spa, SCL_CONFIG, RW_READER)); |
5334 | ||
34dc7c2f BB |
5335 | if (spa->spa_l2cache.sav_count == 0) |
5336 | return; | |
5337 | ||
34dc7c2f BB |
5338 | VERIFY(nvlist_lookup_nvlist(config, |
5339 | ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); | |
5340 | VERIFY(nvlist_lookup_nvlist_array(spa->spa_l2cache.sav_config, | |
5341 | ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0); | |
5342 | if (nl2cache != 0) { | |
5343 | VERIFY(nvlist_add_nvlist_array(nvroot, | |
5344 | ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache) == 0); | |
5345 | VERIFY(nvlist_lookup_nvlist_array(nvroot, | |
5346 | ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0); | |
5347 | ||
5348 | /* | |
5349 | * Update level 2 cache device stats. | |
5350 | */ | |
5351 | ||
5352 | for (i = 0; i < nl2cache; i++) { | |
5353 | VERIFY(nvlist_lookup_uint64(l2cache[i], | |
5354 | ZPOOL_CONFIG_GUID, &guid) == 0); | |
5355 | ||
5356 | vd = NULL; | |
5357 | for (j = 0; j < spa->spa_l2cache.sav_count; j++) { | |
5358 | if (guid == | |
5359 | spa->spa_l2cache.sav_vdevs[j]->vdev_guid) { | |
5360 | vd = spa->spa_l2cache.sav_vdevs[j]; | |
5361 | break; | |
5362 | } | |
5363 | } | |
5364 | ASSERT(vd != NULL); | |
5365 | ||
5366 | VERIFY(nvlist_lookup_uint64_array(l2cache[i], | |
428870ff BB |
5367 | ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&vs, &vsc) |
5368 | == 0); | |
34dc7c2f | 5369 | vdev_get_stats(vd, vs); |
193a37cb TH |
5370 | vdev_config_generate_stats(vd, l2cache[i]); |
5371 | ||
34dc7c2f BB |
5372 | } |
5373 | } | |
34dc7c2f BB |
5374 | } |
5375 | ||
9ae529ec | 5376 | static void |
417104bd | 5377 | spa_feature_stats_from_disk(spa_t *spa, nvlist_t *features) |
9ae529ec | 5378 | { |
9ae529ec CS |
5379 | zap_cursor_t zc; |
5380 | zap_attribute_t za; | |
5381 | ||
9ae529ec CS |
5382 | if (spa->spa_feat_for_read_obj != 0) { |
5383 | for (zap_cursor_init(&zc, spa->spa_meta_objset, | |
5384 | spa->spa_feat_for_read_obj); | |
5385 | zap_cursor_retrieve(&zc, &za) == 0; | |
5386 | zap_cursor_advance(&zc)) { | |
5387 | ASSERT(za.za_integer_length == sizeof (uint64_t) && | |
5388 | za.za_num_integers == 1); | |
417104bd | 5389 | VERIFY0(nvlist_add_uint64(features, za.za_name, |
9ae529ec CS |
5390 | za.za_first_integer)); |
5391 | } | |
5392 | zap_cursor_fini(&zc); | |
5393 | } | |
5394 | ||
5395 | if (spa->spa_feat_for_write_obj != 0) { | |
5396 | for (zap_cursor_init(&zc, spa->spa_meta_objset, | |
5397 | spa->spa_feat_for_write_obj); | |
5398 | zap_cursor_retrieve(&zc, &za) == 0; | |
5399 | zap_cursor_advance(&zc)) { | |
5400 | ASSERT(za.za_integer_length == sizeof (uint64_t) && | |
5401 | za.za_num_integers == 1); | |
417104bd | 5402 | VERIFY0(nvlist_add_uint64(features, za.za_name, |
9ae529ec CS |
5403 | za.za_first_integer)); |
5404 | } | |
5405 | zap_cursor_fini(&zc); | |
5406 | } | |
417104bd NB |
5407 | } |
5408 | ||
5409 | static void | |
5410 | spa_feature_stats_from_cache(spa_t *spa, nvlist_t *features) | |
5411 | { | |
5412 | int i; | |
5413 | ||
5414 | for (i = 0; i < SPA_FEATURES; i++) { | |
5415 | zfeature_info_t feature = spa_feature_table[i]; | |
5416 | uint64_t refcount; | |
5417 | ||
5418 | if (feature_get_refcount(spa, &feature, &refcount) != 0) | |
5419 | continue; | |
5420 | ||
5421 | VERIFY0(nvlist_add_uint64(features, feature.fi_guid, refcount)); | |
5422 | } | |
5423 | } | |
5424 | ||
5425 | /* | |
5426 | * Store a list of pool features and their reference counts in the | |
5427 | * config. | |
5428 | * | |
5429 | * The first time this is called on a spa, allocate a new nvlist, fetch | |
5430 | * the pool features and reference counts from disk, then save the list | |
5431 | * in the spa. In subsequent calls on the same spa use the saved nvlist | |
5432 | * and refresh its values from the cached reference counts. This | |
5433 | * ensures we don't block here on I/O on a suspended pool so 'zpool | |
5434 | * clear' can resume the pool. | |
5435 | */ | |
5436 | static void | |
5437 | spa_add_feature_stats(spa_t *spa, nvlist_t *config) | |
5438 | { | |
4eb30c68 | 5439 | nvlist_t *features; |
417104bd NB |
5440 | |
5441 | ASSERT(spa_config_held(spa, SCL_CONFIG, RW_READER)); | |
5442 | ||
4eb30c68 NB |
5443 | mutex_enter(&spa->spa_feat_stats_lock); |
5444 | features = spa->spa_feat_stats; | |
5445 | ||
417104bd NB |
5446 | if (features != NULL) { |
5447 | spa_feature_stats_from_cache(spa, features); | |
5448 | } else { | |
5449 | VERIFY0(nvlist_alloc(&features, NV_UNIQUE_NAME, KM_SLEEP)); | |
5450 | spa->spa_feat_stats = features; | |
5451 | spa_feature_stats_from_disk(spa, features); | |
5452 | } | |
9ae529ec | 5453 | |
417104bd NB |
5454 | VERIFY0(nvlist_add_nvlist(config, ZPOOL_CONFIG_FEATURE_STATS, |
5455 | features)); | |
4eb30c68 NB |
5456 | |
5457 | mutex_exit(&spa->spa_feat_stats_lock); | |
9ae529ec CS |
5458 | } |
5459 | ||
34dc7c2f | 5460 | int |
9ae529ec CS |
5461 | spa_get_stats(const char *name, nvlist_t **config, |
5462 | char *altroot, size_t buflen) | |
34dc7c2f BB |
5463 | { |
5464 | int error; | |
5465 | spa_t *spa; | |
5466 | ||
5467 | *config = NULL; | |
428870ff | 5468 | error = spa_open_common(name, &spa, FTAG, NULL, config); |
34dc7c2f | 5469 | |
9babb374 BB |
5470 | if (spa != NULL) { |
5471 | /* | |
5472 | * This still leaves a window of inconsistency where the spares | |
5473 | * or l2cache devices could change and the config would be | |
5474 | * self-inconsistent. | |
5475 | */ | |
5476 | spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); | |
34dc7c2f | 5477 | |
9babb374 | 5478 | if (*config != NULL) { |
572e2857 BB |
5479 | uint64_t loadtimes[2]; |
5480 | ||
5481 | loadtimes[0] = spa->spa_loaded_ts.tv_sec; | |
5482 | loadtimes[1] = spa->spa_loaded_ts.tv_nsec; | |
5483 | VERIFY(nvlist_add_uint64_array(*config, | |
5484 | ZPOOL_CONFIG_LOADED_TIME, loadtimes, 2) == 0); | |
5485 | ||
b128c09f | 5486 | VERIFY(nvlist_add_uint64(*config, |
9babb374 BB |
5487 | ZPOOL_CONFIG_ERRCOUNT, |
5488 | spa_get_errlog_size(spa)) == 0); | |
5489 | ||
cec3a0a1 | 5490 | if (spa_suspended(spa)) { |
9babb374 BB |
5491 | VERIFY(nvlist_add_uint64(*config, |
5492 | ZPOOL_CONFIG_SUSPENDED, | |
5493 | spa->spa_failmode) == 0); | |
cec3a0a1 OF |
5494 | VERIFY(nvlist_add_uint64(*config, |
5495 | ZPOOL_CONFIG_SUSPENDED_REASON, | |
5496 | spa->spa_suspended) == 0); | |
5497 | } | |
b128c09f | 5498 | |
9babb374 BB |
5499 | spa_add_spares(spa, *config); |
5500 | spa_add_l2cache(spa, *config); | |
9ae529ec | 5501 | spa_add_feature_stats(spa, *config); |
9babb374 | 5502 | } |
34dc7c2f BB |
5503 | } |
5504 | ||
5505 | /* | |
5506 | * We want to get the alternate root even for faulted pools, so we cheat | |
5507 | * and call spa_lookup() directly. | |
5508 | */ | |
5509 | if (altroot) { | |
5510 | if (spa == NULL) { | |
5511 | mutex_enter(&spa_namespace_lock); | |
5512 | spa = spa_lookup(name); | |
5513 | if (spa) | |
5514 | spa_altroot(spa, altroot, buflen); | |
5515 | else | |
5516 | altroot[0] = '\0'; | |
5517 | spa = NULL; | |
5518 | mutex_exit(&spa_namespace_lock); | |
5519 | } else { | |
5520 | spa_altroot(spa, altroot, buflen); | |
5521 | } | |
5522 | } | |
5523 | ||
9babb374 BB |
5524 | if (spa != NULL) { |
5525 | spa_config_exit(spa, SCL_CONFIG, FTAG); | |
34dc7c2f | 5526 | spa_close(spa, FTAG); |
9babb374 | 5527 | } |
34dc7c2f BB |
5528 | |
5529 | return (error); | |
5530 | } | |
5531 | ||
5532 | /* | |
5533 | * Validate that the auxiliary device array is well formed. We must have an | |
5534 | * array of nvlists, each which describes a valid leaf vdev. If this is an | |
5535 | * import (mode is VDEV_ALLOC_SPARE), then we allow corrupted spares to be | |
5536 | * specified, as long as they are well-formed. | |
5537 | */ | |
5538 | static int | |
5539 | spa_validate_aux_devs(spa_t *spa, nvlist_t *nvroot, uint64_t crtxg, int mode, | |
5540 | spa_aux_vdev_t *sav, const char *config, uint64_t version, | |
5541 | vdev_labeltype_t label) | |
5542 | { | |
5543 | nvlist_t **dev; | |
5544 | uint_t i, ndev; | |
5545 | vdev_t *vd; | |
5546 | int error; | |
5547 | ||
b128c09f BB |
5548 | ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL); |
5549 | ||
34dc7c2f BB |
5550 | /* |
5551 | * It's acceptable to have no devs specified. | |
5552 | */ | |
5553 | if (nvlist_lookup_nvlist_array(nvroot, config, &dev, &ndev) != 0) | |
5554 | return (0); | |
5555 | ||
5556 | if (ndev == 0) | |
2e528b49 | 5557 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
5558 | |
5559 | /* | |
5560 | * Make sure the pool is formatted with a version that supports this | |
5561 | * device type. | |
5562 | */ | |
5563 | if (spa_version(spa) < version) | |
2e528b49 | 5564 | return (SET_ERROR(ENOTSUP)); |
34dc7c2f BB |
5565 | |
5566 | /* | |
5567 | * Set the pending device list so we correctly handle device in-use | |
5568 | * checking. | |
5569 | */ | |
5570 | sav->sav_pending = dev; | |
5571 | sav->sav_npending = ndev; | |
5572 | ||
5573 | for (i = 0; i < ndev; i++) { | |
5574 | if ((error = spa_config_parse(spa, &vd, dev[i], NULL, 0, | |
5575 | mode)) != 0) | |
5576 | goto out; | |
5577 | ||
5578 | if (!vd->vdev_ops->vdev_op_leaf) { | |
5579 | vdev_free(vd); | |
2e528b49 | 5580 | error = SET_ERROR(EINVAL); |
34dc7c2f BB |
5581 | goto out; |
5582 | } | |
5583 | ||
34dc7c2f BB |
5584 | vd->vdev_top = vd; |
5585 | ||
5586 | if ((error = vdev_open(vd)) == 0 && | |
5587 | (error = vdev_label_init(vd, crtxg, label)) == 0) { | |
5588 | VERIFY(nvlist_add_uint64(dev[i], ZPOOL_CONFIG_GUID, | |
5589 | vd->vdev_guid) == 0); | |
5590 | } | |
5591 | ||
5592 | vdev_free(vd); | |
5593 | ||
5594 | if (error && | |
5595 | (mode != VDEV_ALLOC_SPARE && mode != VDEV_ALLOC_L2CACHE)) | |
5596 | goto out; | |
5597 | else | |
5598 | error = 0; | |
5599 | } | |
5600 | ||
5601 | out: | |
5602 | sav->sav_pending = NULL; | |
5603 | sav->sav_npending = 0; | |
5604 | return (error); | |
5605 | } | |
5606 | ||
5607 | static int | |
5608 | spa_validate_aux(spa_t *spa, nvlist_t *nvroot, uint64_t crtxg, int mode) | |
5609 | { | |
5610 | int error; | |
5611 | ||
b128c09f BB |
5612 | ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL); |
5613 | ||
34dc7c2f BB |
5614 | if ((error = spa_validate_aux_devs(spa, nvroot, crtxg, mode, |
5615 | &spa->spa_spares, ZPOOL_CONFIG_SPARES, SPA_VERSION_SPARES, | |
5616 | VDEV_LABEL_SPARE)) != 0) { | |
5617 | return (error); | |
5618 | } | |
5619 | ||
5620 | return (spa_validate_aux_devs(spa, nvroot, crtxg, mode, | |
5621 | &spa->spa_l2cache, ZPOOL_CONFIG_L2CACHE, SPA_VERSION_L2CACHE, | |
5622 | VDEV_LABEL_L2CACHE)); | |
5623 | } | |
5624 | ||
5625 | static void | |
5626 | spa_set_aux_vdevs(spa_aux_vdev_t *sav, nvlist_t **devs, int ndevs, | |
5627 | const char *config) | |
5628 | { | |
5629 | int i; | |
5630 | ||
5631 | if (sav->sav_config != NULL) { | |
5632 | nvlist_t **olddevs; | |
5633 | uint_t oldndevs; | |
5634 | nvlist_t **newdevs; | |
5635 | ||
5636 | /* | |
4e33ba4c | 5637 | * Generate new dev list by concatenating with the |
34dc7c2f BB |
5638 | * current dev list. |
5639 | */ | |
5640 | VERIFY(nvlist_lookup_nvlist_array(sav->sav_config, config, | |
5641 | &olddevs, &oldndevs) == 0); | |
5642 | ||
5643 | newdevs = kmem_alloc(sizeof (void *) * | |
79c76d5b | 5644 | (ndevs + oldndevs), KM_SLEEP); |
34dc7c2f BB |
5645 | for (i = 0; i < oldndevs; i++) |
5646 | VERIFY(nvlist_dup(olddevs[i], &newdevs[i], | |
79c76d5b | 5647 | KM_SLEEP) == 0); |
34dc7c2f BB |
5648 | for (i = 0; i < ndevs; i++) |
5649 | VERIFY(nvlist_dup(devs[i], &newdevs[i + oldndevs], | |
79c76d5b | 5650 | KM_SLEEP) == 0); |
34dc7c2f BB |
5651 | |
5652 | VERIFY(nvlist_remove(sav->sav_config, config, | |
5653 | DATA_TYPE_NVLIST_ARRAY) == 0); | |
5654 | ||
5655 | VERIFY(nvlist_add_nvlist_array(sav->sav_config, | |
5656 | config, newdevs, ndevs + oldndevs) == 0); | |
5657 | for (i = 0; i < oldndevs + ndevs; i++) | |
5658 | nvlist_free(newdevs[i]); | |
5659 | kmem_free(newdevs, (oldndevs + ndevs) * sizeof (void *)); | |
5660 | } else { | |
5661 | /* | |
5662 | * Generate a new dev list. | |
5663 | */ | |
5664 | VERIFY(nvlist_alloc(&sav->sav_config, NV_UNIQUE_NAME, | |
79c76d5b | 5665 | KM_SLEEP) == 0); |
34dc7c2f BB |
5666 | VERIFY(nvlist_add_nvlist_array(sav->sav_config, config, |
5667 | devs, ndevs) == 0); | |
5668 | } | |
5669 | } | |
5670 | ||
5671 | /* | |
5672 | * Stop and drop level 2 ARC devices | |
5673 | */ | |
5674 | void | |
5675 | spa_l2cache_drop(spa_t *spa) | |
5676 | { | |
5677 | vdev_t *vd; | |
5678 | int i; | |
5679 | spa_aux_vdev_t *sav = &spa->spa_l2cache; | |
5680 | ||
5681 | for (i = 0; i < sav->sav_count; i++) { | |
5682 | uint64_t pool; | |
5683 | ||
5684 | vd = sav->sav_vdevs[i]; | |
5685 | ASSERT(vd != NULL); | |
5686 | ||
fb5f0bc8 BB |
5687 | if (spa_l2cache_exists(vd->vdev_guid, &pool) && |
5688 | pool != 0ULL && l2arc_vdev_present(vd)) | |
34dc7c2f | 5689 | l2arc_remove_vdev(vd); |
34dc7c2f BB |
5690 | } |
5691 | } | |
5692 | ||
b5256303 TC |
5693 | /* |
5694 | * Verify encryption parameters for spa creation. If we are encrypting, we must | |
5695 | * have the encryption feature flag enabled. | |
5696 | */ | |
5697 | static int | |
5698 | spa_create_check_encryption_params(dsl_crypto_params_t *dcp, | |
5699 | boolean_t has_encryption) | |
5700 | { | |
5701 | if (dcp->cp_crypt != ZIO_CRYPT_OFF && | |
5702 | dcp->cp_crypt != ZIO_CRYPT_INHERIT && | |
5703 | !has_encryption) | |
5704 | return (SET_ERROR(ENOTSUP)); | |
5705 | ||
1fff937a | 5706 | return (dmu_objset_create_crypt_check(NULL, dcp, NULL)); |
b5256303 TC |
5707 | } |
5708 | ||
34dc7c2f BB |
5709 | /* |
5710 | * Pool Creation | |
5711 | */ | |
5712 | int | |
5713 | spa_create(const char *pool, nvlist_t *nvroot, nvlist_t *props, | |
b5256303 | 5714 | nvlist_t *zplprops, dsl_crypto_params_t *dcp) |
34dc7c2f BB |
5715 | { |
5716 | spa_t *spa; | |
5717 | char *altroot = NULL; | |
5718 | vdev_t *rvd; | |
5719 | dsl_pool_t *dp; | |
5720 | dmu_tx_t *tx; | |
9babb374 | 5721 | int error = 0; |
34dc7c2f BB |
5722 | uint64_t txg = TXG_INITIAL; |
5723 | nvlist_t **spares, **l2cache; | |
5724 | uint_t nspares, nl2cache; | |
b2255edc | 5725 | uint64_t version, obj, ndraid = 0; |
9ae529ec | 5726 | boolean_t has_features; |
b5256303 | 5727 | boolean_t has_encryption; |
715c996d | 5728 | boolean_t has_allocclass; |
b5256303 TC |
5729 | spa_feature_t feat; |
5730 | char *feat_name; | |
83e9986f RY |
5731 | char *poolname; |
5732 | nvlist_t *nvl; | |
5733 | ||
cc99f275 DB |
5734 | if (props == NULL || |
5735 | nvlist_lookup_string(props, "tname", &poolname) != 0) | |
83e9986f | 5736 | poolname = (char *)pool; |
34dc7c2f BB |
5737 | |
5738 | /* | |
5739 | * If this pool already exists, return failure. | |
5740 | */ | |
5741 | mutex_enter(&spa_namespace_lock); | |
83e9986f | 5742 | if (spa_lookup(poolname) != NULL) { |
34dc7c2f | 5743 | mutex_exit(&spa_namespace_lock); |
2e528b49 | 5744 | return (SET_ERROR(EEXIST)); |
34dc7c2f BB |
5745 | } |
5746 | ||
5747 | /* | |
5748 | * Allocate a new spa_t structure. | |
5749 | */ | |
83e9986f RY |
5750 | nvl = fnvlist_alloc(); |
5751 | fnvlist_add_string(nvl, ZPOOL_CONFIG_POOL_NAME, pool); | |
34dc7c2f BB |
5752 | (void) nvlist_lookup_string(props, |
5753 | zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot); | |
83e9986f RY |
5754 | spa = spa_add(poolname, nvl, altroot); |
5755 | fnvlist_free(nvl); | |
fb5f0bc8 | 5756 | spa_activate(spa, spa_mode_global); |
34dc7c2f | 5757 | |
34dc7c2f | 5758 | if (props && (error = spa_prop_validate(spa, props))) { |
34dc7c2f BB |
5759 | spa_deactivate(spa); |
5760 | spa_remove(spa); | |
b128c09f | 5761 | mutex_exit(&spa_namespace_lock); |
34dc7c2f BB |
5762 | return (error); |
5763 | } | |
5764 | ||
83e9986f RY |
5765 | /* |
5766 | * Temporary pool names should never be written to disk. | |
5767 | */ | |
5768 | if (poolname != pool) | |
5769 | spa->spa_import_flags |= ZFS_IMPORT_TEMP_NAME; | |
5770 | ||
9ae529ec | 5771 | has_features = B_FALSE; |
b5256303 | 5772 | has_encryption = B_FALSE; |
715c996d | 5773 | has_allocclass = B_FALSE; |
1c27024e | 5774 | for (nvpair_t *elem = nvlist_next_nvpair(props, NULL); |
9ae529ec | 5775 | elem != NULL; elem = nvlist_next_nvpair(props, elem)) { |
b5256303 | 5776 | if (zpool_prop_feature(nvpair_name(elem))) { |
9ae529ec | 5777 | has_features = B_TRUE; |
b5256303 TC |
5778 | |
5779 | feat_name = strchr(nvpair_name(elem), '@') + 1; | |
5780 | VERIFY0(zfeature_lookup_name(feat_name, &feat)); | |
5781 | if (feat == SPA_FEATURE_ENCRYPTION) | |
5782 | has_encryption = B_TRUE; | |
715c996d | 5783 | if (feat == SPA_FEATURE_ALLOCATION_CLASSES) |
5784 | has_allocclass = B_TRUE; | |
b5256303 TC |
5785 | } |
5786 | } | |
5787 | ||
5788 | /* verify encryption params, if they were provided */ | |
5789 | if (dcp != NULL) { | |
5790 | error = spa_create_check_encryption_params(dcp, has_encryption); | |
5791 | if (error != 0) { | |
5792 | spa_deactivate(spa); | |
5793 | spa_remove(spa); | |
5794 | mutex_exit(&spa_namespace_lock); | |
5795 | return (error); | |
5796 | } | |
9ae529ec | 5797 | } |
c24fa4b1 | 5798 | if (!has_allocclass && zfs_special_devs(nvroot, NULL)) { |
715c996d | 5799 | spa_deactivate(spa); |
5800 | spa_remove(spa); | |
5801 | mutex_exit(&spa_namespace_lock); | |
5802 | return (ENOTSUP); | |
5803 | } | |
9ae529ec CS |
5804 | |
5805 | if (has_features || nvlist_lookup_uint64(props, | |
5806 | zpool_prop_to_name(ZPOOL_PROP_VERSION), &version) != 0) { | |
34dc7c2f | 5807 | version = SPA_VERSION; |
9ae529ec CS |
5808 | } |
5809 | ASSERT(SPA_VERSION_IS_SUPPORTED(version)); | |
428870ff BB |
5810 | |
5811 | spa->spa_first_txg = txg; | |
5812 | spa->spa_uberblock.ub_txg = txg - 1; | |
34dc7c2f BB |
5813 | spa->spa_uberblock.ub_version = version; |
5814 | spa->spa_ubsync = spa->spa_uberblock; | |
3dfb57a3 | 5815 | spa->spa_load_state = SPA_LOAD_CREATE; |
a1d477c2 MA |
5816 | spa->spa_removing_phys.sr_state = DSS_NONE; |
5817 | spa->spa_removing_phys.sr_removing_vdev = -1; | |
5818 | spa->spa_removing_phys.sr_prev_indirect_vdev = -1; | |
944a3724 | 5819 | spa->spa_indirect_vdevs_loaded = B_TRUE; |
34dc7c2f | 5820 | |
9babb374 BB |
5821 | /* |
5822 | * Create "The Godfather" zio to hold all async IOs | |
5823 | */ | |
e022864d MA |
5824 | spa->spa_async_zio_root = kmem_alloc(max_ncpus * sizeof (void *), |
5825 | KM_SLEEP); | |
1c27024e | 5826 | for (int i = 0; i < max_ncpus; i++) { |
e022864d MA |
5827 | spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL, |
5828 | ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | | |
5829 | ZIO_FLAG_GODFATHER); | |
5830 | } | |
9babb374 | 5831 | |
34dc7c2f BB |
5832 | /* |
5833 | * Create the root vdev. | |
5834 | */ | |
b128c09f | 5835 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f BB |
5836 | |
5837 | error = spa_config_parse(spa, &rvd, nvroot, NULL, 0, VDEV_ALLOC_ADD); | |
5838 | ||
5839 | ASSERT(error != 0 || rvd != NULL); | |
5840 | ASSERT(error != 0 || spa->spa_root_vdev == rvd); | |
5841 | ||
5842 | if (error == 0 && !zfs_allocatable_devs(nvroot)) | |
2e528b49 | 5843 | error = SET_ERROR(EINVAL); |
34dc7c2f BB |
5844 | |
5845 | if (error == 0 && | |
5846 | (error = vdev_create(rvd, txg, B_FALSE)) == 0 && | |
b2255edc BB |
5847 | (error = vdev_draid_spare_create(nvroot, rvd, &ndraid, 0)) == 0 && |
5848 | (error = spa_validate_aux(spa, nvroot, txg, VDEV_ALLOC_ADD)) == 0) { | |
cc99f275 DB |
5849 | /* |
5850 | * instantiate the metaslab groups (this will dirty the vdevs) | |
5851 | * we can no longer error exit past this point | |
5852 | */ | |
5853 | for (int c = 0; error == 0 && c < rvd->vdev_children; c++) { | |
5854 | vdev_t *vd = rvd->vdev_child[c]; | |
5855 | ||
5856 | vdev_metaslab_set_size(vd); | |
5857 | vdev_expand(vd, txg); | |
9babb374 | 5858 | } |
34dc7c2f BB |
5859 | } |
5860 | ||
b128c09f | 5861 | spa_config_exit(spa, SCL_ALL, FTAG); |
34dc7c2f BB |
5862 | |
5863 | if (error != 0) { | |
5864 | spa_unload(spa); | |
5865 | spa_deactivate(spa); | |
5866 | spa_remove(spa); | |
5867 | mutex_exit(&spa_namespace_lock); | |
5868 | return (error); | |
5869 | } | |
5870 | ||
5871 | /* | |
5872 | * Get the list of spares, if specified. | |
5873 | */ | |
5874 | if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
5875 | &spares, &nspares) == 0) { | |
5876 | VERIFY(nvlist_alloc(&spa->spa_spares.sav_config, NV_UNIQUE_NAME, | |
79c76d5b | 5877 | KM_SLEEP) == 0); |
34dc7c2f BB |
5878 | VERIFY(nvlist_add_nvlist_array(spa->spa_spares.sav_config, |
5879 | ZPOOL_CONFIG_SPARES, spares, nspares) == 0); | |
b128c09f | 5880 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f | 5881 | spa_load_spares(spa); |
b128c09f | 5882 | spa_config_exit(spa, SCL_ALL, FTAG); |
34dc7c2f BB |
5883 | spa->spa_spares.sav_sync = B_TRUE; |
5884 | } | |
5885 | ||
5886 | /* | |
5887 | * Get the list of level 2 cache devices, if specified. | |
5888 | */ | |
5889 | if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, | |
5890 | &l2cache, &nl2cache) == 0) { | |
5891 | VERIFY(nvlist_alloc(&spa->spa_l2cache.sav_config, | |
79c76d5b | 5892 | NV_UNIQUE_NAME, KM_SLEEP) == 0); |
34dc7c2f BB |
5893 | VERIFY(nvlist_add_nvlist_array(spa->spa_l2cache.sav_config, |
5894 | ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache) == 0); | |
b128c09f | 5895 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f | 5896 | spa_load_l2cache(spa); |
b128c09f | 5897 | spa_config_exit(spa, SCL_ALL, FTAG); |
34dc7c2f BB |
5898 | spa->spa_l2cache.sav_sync = B_TRUE; |
5899 | } | |
5900 | ||
9ae529ec | 5901 | spa->spa_is_initializing = B_TRUE; |
b5256303 | 5902 | spa->spa_dsl_pool = dp = dsl_pool_create(spa, zplprops, dcp, txg); |
9ae529ec | 5903 | spa->spa_is_initializing = B_FALSE; |
34dc7c2f | 5904 | |
428870ff BB |
5905 | /* |
5906 | * Create DDTs (dedup tables). | |
5907 | */ | |
5908 | ddt_create(spa); | |
5909 | ||
5910 | spa_update_dspace(spa); | |
5911 | ||
34dc7c2f BB |
5912 | tx = dmu_tx_create_assigned(dp, txg); |
5913 | ||
d5e024cb BB |
5914 | /* |
5915 | * Create the pool's history object. | |
5916 | */ | |
5917 | if (version >= SPA_VERSION_ZPOOL_HISTORY && !spa->spa_history) | |
5918 | spa_history_create_obj(spa, tx); | |
5919 | ||
5920 | spa_event_notify(spa, NULL, NULL, ESC_ZFS_POOL_CREATE); | |
5921 | spa_history_log_version(spa, "create", tx); | |
5922 | ||
34dc7c2f BB |
5923 | /* |
5924 | * Create the pool config object. | |
5925 | */ | |
5926 | spa->spa_config_object = dmu_object_alloc(spa->spa_meta_objset, | |
b128c09f | 5927 | DMU_OT_PACKED_NVLIST, SPA_CONFIG_BLOCKSIZE, |
34dc7c2f BB |
5928 | DMU_OT_PACKED_NVLIST_SIZE, sizeof (uint64_t), tx); |
5929 | ||
5930 | if (zap_add(spa->spa_meta_objset, | |
5931 | DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CONFIG, | |
5932 | sizeof (uint64_t), 1, &spa->spa_config_object, tx) != 0) { | |
5933 | cmn_err(CE_PANIC, "failed to add pool config"); | |
5934 | } | |
5935 | ||
428870ff BB |
5936 | if (zap_add(spa->spa_meta_objset, |
5937 | DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CREATION_VERSION, | |
5938 | sizeof (uint64_t), 1, &version, tx) != 0) { | |
5939 | cmn_err(CE_PANIC, "failed to add pool version"); | |
5940 | } | |
5941 | ||
34dc7c2f BB |
5942 | /* Newly created pools with the right version are always deflated. */ |
5943 | if (version >= SPA_VERSION_RAIDZ_DEFLATE) { | |
5944 | spa->spa_deflate = TRUE; | |
5945 | if (zap_add(spa->spa_meta_objset, | |
5946 | DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
5947 | sizeof (uint64_t), 1, &spa->spa_deflate, tx) != 0) { | |
5948 | cmn_err(CE_PANIC, "failed to add deflate"); | |
5949 | } | |
5950 | } | |
5951 | ||
5952 | /* | |
428870ff | 5953 | * Create the deferred-free bpobj. Turn off compression |
34dc7c2f BB |
5954 | * because sync-to-convergence takes longer if the blocksize |
5955 | * keeps changing. | |
5956 | */ | |
428870ff BB |
5957 | obj = bpobj_alloc(spa->spa_meta_objset, 1 << 14, tx); |
5958 | dmu_object_set_compress(spa->spa_meta_objset, obj, | |
34dc7c2f | 5959 | ZIO_COMPRESS_OFF, tx); |
34dc7c2f | 5960 | if (zap_add(spa->spa_meta_objset, |
428870ff BB |
5961 | DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SYNC_BPOBJ, |
5962 | sizeof (uint64_t), 1, &obj, tx) != 0) { | |
5963 | cmn_err(CE_PANIC, "failed to add bpobj"); | |
34dc7c2f | 5964 | } |
428870ff BB |
5965 | VERIFY3U(0, ==, bpobj_open(&spa->spa_deferred_bpobj, |
5966 | spa->spa_meta_objset, obj)); | |
34dc7c2f | 5967 | |
3c67d83a TH |
5968 | /* |
5969 | * Generate some random noise for salted checksums to operate on. | |
5970 | */ | |
5971 | (void) random_get_pseudo_bytes(spa->spa_cksum_salt.zcs_bytes, | |
5972 | sizeof (spa->spa_cksum_salt.zcs_bytes)); | |
5973 | ||
34dc7c2f BB |
5974 | /* |
5975 | * Set pool properties. | |
5976 | */ | |
5977 | spa->spa_bootfs = zpool_prop_default_numeric(ZPOOL_PROP_BOOTFS); | |
5978 | spa->spa_delegation = zpool_prop_default_numeric(ZPOOL_PROP_DELEGATION); | |
5979 | spa->spa_failmode = zpool_prop_default_numeric(ZPOOL_PROP_FAILUREMODE); | |
9babb374 | 5980 | spa->spa_autoexpand = zpool_prop_default_numeric(ZPOOL_PROP_AUTOEXPAND); |
379ca9cf | 5981 | spa->spa_multihost = zpool_prop_default_numeric(ZPOOL_PROP_MULTIHOST); |
1b939560 | 5982 | spa->spa_autotrim = zpool_prop_default_numeric(ZPOOL_PROP_AUTOTRIM); |
428870ff | 5983 | |
d164b209 BB |
5984 | if (props != NULL) { |
5985 | spa_configfile_set(spa, props, B_FALSE); | |
13fe0198 | 5986 | spa_sync_props(props, tx); |
d164b209 | 5987 | } |
34dc7c2f | 5988 | |
b2255edc BB |
5989 | for (int i = 0; i < ndraid; i++) |
5990 | spa_feature_incr(spa, SPA_FEATURE_DRAID, tx); | |
5991 | ||
34dc7c2f BB |
5992 | dmu_tx_commit(tx); |
5993 | ||
5994 | spa->spa_sync_on = B_TRUE; | |
b5256303 | 5995 | txg_sync_start(dp); |
379ca9cf | 5996 | mmp_thread_start(spa); |
b5256303 | 5997 | txg_wait_synced(dp, txg); |
34dc7c2f | 5998 | |
9d5b5245 SD |
5999 | spa_spawn_aux_threads(spa); |
6000 | ||
a1d477c2 | 6001 | spa_write_cachefile(spa, B_FALSE, B_TRUE); |
34dc7c2f | 6002 | |
0c66c32d JG |
6003 | /* |
6004 | * Don't count references from objsets that are already closed | |
6005 | * and are making their way through the eviction process. | |
6006 | */ | |
6007 | spa_evicting_os_wait(spa); | |
424fd7c3 | 6008 | spa->spa_minref = zfs_refcount_count(&spa->spa_refcount); |
3dfb57a3 | 6009 | spa->spa_load_state = SPA_LOAD_NONE; |
b128c09f | 6010 | |
d164b209 BB |
6011 | mutex_exit(&spa_namespace_lock); |
6012 | ||
34dc7c2f BB |
6013 | return (0); |
6014 | } | |
6015 | ||
9babb374 BB |
6016 | /* |
6017 | * Import a non-root pool into the system. | |
6018 | */ | |
6019 | int | |
13fe0198 | 6020 | spa_import(char *pool, nvlist_t *config, nvlist_t *props, uint64_t flags) |
34dc7c2f BB |
6021 | { |
6022 | spa_t *spa; | |
6023 | char *altroot = NULL; | |
428870ff | 6024 | spa_load_state_t state = SPA_LOAD_IMPORT; |
8a393be3 | 6025 | zpool_load_policy_t policy; |
da92d5cb | 6026 | spa_mode_t mode = spa_mode_global; |
572e2857 | 6027 | uint64_t readonly = B_FALSE; |
9babb374 | 6028 | int error; |
34dc7c2f BB |
6029 | nvlist_t *nvroot; |
6030 | nvlist_t **spares, **l2cache; | |
6031 | uint_t nspares, nl2cache; | |
34dc7c2f BB |
6032 | |
6033 | /* | |
6034 | * If a pool with this name exists, return failure. | |
6035 | */ | |
6036 | mutex_enter(&spa_namespace_lock); | |
428870ff | 6037 | if (spa_lookup(pool) != NULL) { |
9babb374 | 6038 | mutex_exit(&spa_namespace_lock); |
2e528b49 | 6039 | return (SET_ERROR(EEXIST)); |
34dc7c2f BB |
6040 | } |
6041 | ||
6042 | /* | |
6043 | * Create and initialize the spa structure. | |
6044 | */ | |
6045 | (void) nvlist_lookup_string(props, | |
6046 | zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot); | |
572e2857 BB |
6047 | (void) nvlist_lookup_uint64(props, |
6048 | zpool_prop_to_name(ZPOOL_PROP_READONLY), &readonly); | |
6049 | if (readonly) | |
da92d5cb | 6050 | mode = SPA_MODE_READ; |
428870ff | 6051 | spa = spa_add(pool, config, altroot); |
572e2857 BB |
6052 | spa->spa_import_flags = flags; |
6053 | ||
6054 | /* | |
6055 | * Verbatim import - Take a pool and insert it into the namespace | |
6056 | * as if it had been loaded at boot. | |
6057 | */ | |
6058 | if (spa->spa_import_flags & ZFS_IMPORT_VERBATIM) { | |
6059 | if (props != NULL) | |
6060 | spa_configfile_set(spa, props, B_FALSE); | |
6061 | ||
a1d477c2 | 6062 | spa_write_cachefile(spa, B_FALSE, B_TRUE); |
12fa0466 | 6063 | spa_event_notify(spa, NULL, NULL, ESC_ZFS_POOL_IMPORT); |
4a0ee12a | 6064 | zfs_dbgmsg("spa_import: verbatim import of %s", pool); |
572e2857 | 6065 | mutex_exit(&spa_namespace_lock); |
572e2857 BB |
6066 | return (0); |
6067 | } | |
6068 | ||
6069 | spa_activate(spa, mode); | |
34dc7c2f | 6070 | |
9babb374 BB |
6071 | /* |
6072 | * Don't start async tasks until we know everything is healthy. | |
6073 | */ | |
6074 | spa_async_suspend(spa); | |
b128c09f | 6075 | |
8a393be3 PZ |
6076 | zpool_get_load_policy(config, &policy); |
6077 | if (policy.zlp_rewind & ZPOOL_DO_REWIND) | |
572e2857 BB |
6078 | state = SPA_LOAD_RECOVER; |
6079 | ||
6cb8e530 | 6080 | spa->spa_config_source = SPA_CONFIG_SRC_TRYIMPORT; |
572e2857 | 6081 | |
6cb8e530 PZ |
6082 | if (state != SPA_LOAD_RECOVER) { |
6083 | spa->spa_last_ubsync_txg = spa->spa_load_txg = 0; | |
6084 | zfs_dbgmsg("spa_import: importing %s", pool); | |
6085 | } else { | |
6086 | zfs_dbgmsg("spa_import: importing %s, max_txg=%lld " | |
8a393be3 | 6087 | "(RECOVERY MODE)", pool, (longlong_t)policy.zlp_txg); |
6cb8e530 | 6088 | } |
8a393be3 | 6089 | error = spa_load_best(spa, state, policy.zlp_txg, policy.zlp_rewind); |
428870ff BB |
6090 | |
6091 | /* | |
572e2857 BB |
6092 | * Propagate anything learned while loading the pool and pass it |
6093 | * back to caller (i.e. rewind info, missing devices, etc). | |
428870ff | 6094 | */ |
572e2857 BB |
6095 | VERIFY(nvlist_add_nvlist(config, ZPOOL_CONFIG_LOAD_INFO, |
6096 | spa->spa_load_info) == 0); | |
34dc7c2f | 6097 | |
b128c09f | 6098 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f | 6099 | /* |
9babb374 BB |
6100 | * Toss any existing sparelist, as it doesn't have any validity |
6101 | * anymore, and conflicts with spa_has_spare(). | |
34dc7c2f | 6102 | */ |
9babb374 | 6103 | if (spa->spa_spares.sav_config) { |
34dc7c2f BB |
6104 | nvlist_free(spa->spa_spares.sav_config); |
6105 | spa->spa_spares.sav_config = NULL; | |
6106 | spa_load_spares(spa); | |
6107 | } | |
9babb374 | 6108 | if (spa->spa_l2cache.sav_config) { |
34dc7c2f BB |
6109 | nvlist_free(spa->spa_l2cache.sav_config); |
6110 | spa->spa_l2cache.sav_config = NULL; | |
6111 | spa_load_l2cache(spa); | |
6112 | } | |
6113 | ||
6114 | VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, | |
6115 | &nvroot) == 0); | |
b128c09f | 6116 | spa_config_exit(spa, SCL_ALL, FTAG); |
34dc7c2f | 6117 | |
d164b209 BB |
6118 | if (props != NULL) |
6119 | spa_configfile_set(spa, props, B_FALSE); | |
6120 | ||
fb5f0bc8 BB |
6121 | if (error != 0 || (props && spa_writeable(spa) && |
6122 | (error = spa_prop_set(spa, props)))) { | |
9babb374 BB |
6123 | spa_unload(spa); |
6124 | spa_deactivate(spa); | |
6125 | spa_remove(spa); | |
34dc7c2f BB |
6126 | mutex_exit(&spa_namespace_lock); |
6127 | return (error); | |
6128 | } | |
6129 | ||
572e2857 BB |
6130 | spa_async_resume(spa); |
6131 | ||
34dc7c2f BB |
6132 | /* |
6133 | * Override any spares and level 2 cache devices as specified by | |
6134 | * the user, as these may have correct device names/devids, etc. | |
6135 | */ | |
6136 | if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
6137 | &spares, &nspares) == 0) { | |
6138 | if (spa->spa_spares.sav_config) | |
6139 | VERIFY(nvlist_remove(spa->spa_spares.sav_config, | |
6140 | ZPOOL_CONFIG_SPARES, DATA_TYPE_NVLIST_ARRAY) == 0); | |
6141 | else | |
6142 | VERIFY(nvlist_alloc(&spa->spa_spares.sav_config, | |
79c76d5b | 6143 | NV_UNIQUE_NAME, KM_SLEEP) == 0); |
34dc7c2f BB |
6144 | VERIFY(nvlist_add_nvlist_array(spa->spa_spares.sav_config, |
6145 | ZPOOL_CONFIG_SPARES, spares, nspares) == 0); | |
b128c09f | 6146 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f | 6147 | spa_load_spares(spa); |
b128c09f | 6148 | spa_config_exit(spa, SCL_ALL, FTAG); |
34dc7c2f BB |
6149 | spa->spa_spares.sav_sync = B_TRUE; |
6150 | } | |
6151 | if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, | |
6152 | &l2cache, &nl2cache) == 0) { | |
6153 | if (spa->spa_l2cache.sav_config) | |
6154 | VERIFY(nvlist_remove(spa->spa_l2cache.sav_config, | |
6155 | ZPOOL_CONFIG_L2CACHE, DATA_TYPE_NVLIST_ARRAY) == 0); | |
6156 | else | |
6157 | VERIFY(nvlist_alloc(&spa->spa_l2cache.sav_config, | |
79c76d5b | 6158 | NV_UNIQUE_NAME, KM_SLEEP) == 0); |
34dc7c2f BB |
6159 | VERIFY(nvlist_add_nvlist_array(spa->spa_l2cache.sav_config, |
6160 | ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache) == 0); | |
b128c09f | 6161 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f | 6162 | spa_load_l2cache(spa); |
b128c09f | 6163 | spa_config_exit(spa, SCL_ALL, FTAG); |
34dc7c2f BB |
6164 | spa->spa_l2cache.sav_sync = B_TRUE; |
6165 | } | |
6166 | ||
428870ff BB |
6167 | /* |
6168 | * Check for any removed devices. | |
6169 | */ | |
6170 | if (spa->spa_autoreplace) { | |
6171 | spa_aux_check_removed(&spa->spa_spares); | |
6172 | spa_aux_check_removed(&spa->spa_l2cache); | |
6173 | } | |
6174 | ||
fb5f0bc8 | 6175 | if (spa_writeable(spa)) { |
b128c09f BB |
6176 | /* |
6177 | * Update the config cache to include the newly-imported pool. | |
6178 | */ | |
45d1cae3 | 6179 | spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); |
b128c09f | 6180 | } |
34dc7c2f | 6181 | |
34dc7c2f | 6182 | /* |
9babb374 BB |
6183 | * It's possible that the pool was expanded while it was exported. |
6184 | * We kick off an async task to handle this for us. | |
34dc7c2f | 6185 | */ |
9babb374 | 6186 | spa_async_request(spa, SPA_ASYNC_AUTOEXPAND); |
b128c09f | 6187 | |
d5e024cb | 6188 | spa_history_log_version(spa, "import", NULL); |
fb390aaf | 6189 | |
12fa0466 | 6190 | spa_event_notify(spa, NULL, NULL, ESC_ZFS_POOL_IMPORT); |
fb390aaf | 6191 | |
fb390aaf HR |
6192 | mutex_exit(&spa_namespace_lock); |
6193 | ||
ec213971 | 6194 | zvol_create_minors_recursive(pool); |
4a22ba5b | 6195 | |
b128c09f BB |
6196 | return (0); |
6197 | } | |
6198 | ||
34dc7c2f BB |
6199 | nvlist_t * |
6200 | spa_tryimport(nvlist_t *tryconfig) | |
6201 | { | |
6202 | nvlist_t *config = NULL; | |
6cb8e530 | 6203 | char *poolname, *cachefile; |
34dc7c2f BB |
6204 | spa_t *spa; |
6205 | uint64_t state; | |
d164b209 | 6206 | int error; |
8a393be3 | 6207 | zpool_load_policy_t policy; |
34dc7c2f BB |
6208 | |
6209 | if (nvlist_lookup_string(tryconfig, ZPOOL_CONFIG_POOL_NAME, &poolname)) | |
6210 | return (NULL); | |
6211 | ||
6212 | if (nvlist_lookup_uint64(tryconfig, ZPOOL_CONFIG_POOL_STATE, &state)) | |
6213 | return (NULL); | |
6214 | ||
6215 | /* | |
6216 | * Create and initialize the spa structure. | |
6217 | */ | |
6218 | mutex_enter(&spa_namespace_lock); | |
428870ff | 6219 | spa = spa_add(TRYIMPORT_NAME, tryconfig, NULL); |
da92d5cb | 6220 | spa_activate(spa, SPA_MODE_READ); |
34dc7c2f BB |
6221 | |
6222 | /* | |
8a393be3 | 6223 | * Rewind pool if a max txg was provided. |
34dc7c2f | 6224 | */ |
8a393be3 PZ |
6225 | zpool_get_load_policy(spa->spa_config, &policy); |
6226 | if (policy.zlp_txg != UINT64_MAX) { | |
6227 | spa->spa_load_max_txg = policy.zlp_txg; | |
6cb8e530 PZ |
6228 | spa->spa_extreme_rewind = B_TRUE; |
6229 | zfs_dbgmsg("spa_tryimport: importing %s, max_txg=%lld", | |
8a393be3 | 6230 | poolname, (longlong_t)policy.zlp_txg); |
6cb8e530 PZ |
6231 | } else { |
6232 | zfs_dbgmsg("spa_tryimport: importing %s", poolname); | |
6233 | } | |
6234 | ||
6235 | if (nvlist_lookup_string(tryconfig, ZPOOL_CONFIG_CACHEFILE, &cachefile) | |
6236 | == 0) { | |
6237 | zfs_dbgmsg("spa_tryimport: using cachefile '%s'", cachefile); | |
6238 | spa->spa_config_source = SPA_CONFIG_SRC_CACHEFILE; | |
6239 | } else { | |
6240 | spa->spa_config_source = SPA_CONFIG_SRC_SCAN; | |
6241 | } | |
6242 | ||
6243 | error = spa_load(spa, SPA_LOAD_TRYIMPORT, SPA_IMPORT_EXISTING); | |
34dc7c2f BB |
6244 | |
6245 | /* | |
6246 | * If 'tryconfig' was at least parsable, return the current config. | |
6247 | */ | |
6248 | if (spa->spa_root_vdev != NULL) { | |
34dc7c2f | 6249 | config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); |
34dc7c2f BB |
6250 | VERIFY(nvlist_add_string(config, ZPOOL_CONFIG_POOL_NAME, |
6251 | poolname) == 0); | |
6252 | VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_POOL_STATE, | |
6253 | state) == 0); | |
6254 | VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_TIMESTAMP, | |
6255 | spa->spa_uberblock.ub_timestamp) == 0); | |
9ae529ec CS |
6256 | VERIFY(nvlist_add_nvlist(config, ZPOOL_CONFIG_LOAD_INFO, |
6257 | spa->spa_load_info) == 0); | |
ffe9d382 BB |
6258 | VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_ERRATA, |
6259 | spa->spa_errata) == 0); | |
34dc7c2f BB |
6260 | |
6261 | /* | |
6262 | * If the bootfs property exists on this pool then we | |
6263 | * copy it out so that external consumers can tell which | |
6264 | * pools are bootable. | |
6265 | */ | |
d164b209 | 6266 | if ((!error || error == EEXIST) && spa->spa_bootfs) { |
79c76d5b | 6267 | char *tmpname = kmem_alloc(MAXPATHLEN, KM_SLEEP); |
34dc7c2f BB |
6268 | |
6269 | /* | |
6270 | * We have to play games with the name since the | |
6271 | * pool was opened as TRYIMPORT_NAME. | |
6272 | */ | |
b128c09f | 6273 | if (dsl_dsobj_to_dsname(spa_name(spa), |
34dc7c2f BB |
6274 | spa->spa_bootfs, tmpname) == 0) { |
6275 | char *cp; | |
d1d7e268 MK |
6276 | char *dsname; |
6277 | ||
79c76d5b | 6278 | dsname = kmem_alloc(MAXPATHLEN, KM_SLEEP); |
34dc7c2f BB |
6279 | |
6280 | cp = strchr(tmpname, '/'); | |
6281 | if (cp == NULL) { | |
6282 | (void) strlcpy(dsname, tmpname, | |
6283 | MAXPATHLEN); | |
6284 | } else { | |
6285 | (void) snprintf(dsname, MAXPATHLEN, | |
6286 | "%s/%s", poolname, ++cp); | |
6287 | } | |
6288 | VERIFY(nvlist_add_string(config, | |
6289 | ZPOOL_CONFIG_BOOTFS, dsname) == 0); | |
6290 | kmem_free(dsname, MAXPATHLEN); | |
6291 | } | |
6292 | kmem_free(tmpname, MAXPATHLEN); | |
6293 | } | |
6294 | ||
6295 | /* | |
6296 | * Add the list of hot spares and level 2 cache devices. | |
6297 | */ | |
9babb374 | 6298 | spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); |
34dc7c2f BB |
6299 | spa_add_spares(spa, config); |
6300 | spa_add_l2cache(spa, config); | |
9babb374 | 6301 | spa_config_exit(spa, SCL_CONFIG, FTAG); |
34dc7c2f BB |
6302 | } |
6303 | ||
6304 | spa_unload(spa); | |
6305 | spa_deactivate(spa); | |
6306 | spa_remove(spa); | |
6307 | mutex_exit(&spa_namespace_lock); | |
6308 | ||
6309 | return (config); | |
6310 | } | |
6311 | ||
6312 | /* | |
6313 | * Pool export/destroy | |
6314 | * | |
6315 | * The act of destroying or exporting a pool is very simple. We make sure there | |
6316 | * is no more pending I/O and any references to the pool are gone. Then, we | |
6317 | * update the pool state and sync all the labels to disk, removing the | |
fb5f0bc8 BB |
6318 | * configuration from the cache afterwards. If the 'hardforce' flag is set, then |
6319 | * we don't sync the labels or remove the configuration cache. | |
34dc7c2f BB |
6320 | */ |
6321 | static int | |
4d55ea81 | 6322 | spa_export_common(const char *pool, int new_state, nvlist_t **oldconfig, |
fb5f0bc8 | 6323 | boolean_t force, boolean_t hardforce) |
34dc7c2f | 6324 | { |
f4f50a70 | 6325 | int error; |
34dc7c2f BB |
6326 | spa_t *spa; |
6327 | ||
6328 | if (oldconfig) | |
6329 | *oldconfig = NULL; | |
6330 | ||
da92d5cb | 6331 | if (!(spa_mode_global & SPA_MODE_WRITE)) |
2e528b49 | 6332 | return (SET_ERROR(EROFS)); |
34dc7c2f BB |
6333 | |
6334 | mutex_enter(&spa_namespace_lock); | |
6335 | if ((spa = spa_lookup(pool)) == NULL) { | |
6336 | mutex_exit(&spa_namespace_lock); | |
2e528b49 | 6337 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
6338 | } |
6339 | ||
43a85362 SD |
6340 | if (spa->spa_is_exporting) { |
6341 | /* the pool is being exported by another thread */ | |
6342 | mutex_exit(&spa_namespace_lock); | |
6343 | return (SET_ERROR(ZFS_ERR_EXPORT_IN_PROGRESS)); | |
6344 | } | |
6345 | spa->spa_is_exporting = B_TRUE; | |
6346 | ||
34dc7c2f BB |
6347 | /* |
6348 | * Put a hold on the pool, drop the namespace lock, stop async tasks, | |
6349 | * reacquire the namespace lock, and see if we can export. | |
6350 | */ | |
6351 | spa_open_ref(spa, FTAG); | |
6352 | mutex_exit(&spa_namespace_lock); | |
6353 | spa_async_suspend(spa); | |
a0bd735a BP |
6354 | if (spa->spa_zvol_taskq) { |
6355 | zvol_remove_minors(spa, spa_name(spa), B_TRUE); | |
6356 | taskq_wait(spa->spa_zvol_taskq); | |
6357 | } | |
34dc7c2f BB |
6358 | mutex_enter(&spa_namespace_lock); |
6359 | spa_close(spa, FTAG); | |
6360 | ||
d14cfd83 IH |
6361 | if (spa->spa_state == POOL_STATE_UNINITIALIZED) |
6362 | goto export_spa; | |
34dc7c2f | 6363 | /* |
d14cfd83 IH |
6364 | * The pool will be in core if it's openable, in which case we can |
6365 | * modify its state. Objsets may be open only because they're dirty, | |
6366 | * so we have to force it to sync before checking spa_refcnt. | |
34dc7c2f | 6367 | */ |
0c66c32d | 6368 | if (spa->spa_sync_on) { |
34dc7c2f | 6369 | txg_wait_synced(spa->spa_dsl_pool, 0); |
0c66c32d JG |
6370 | spa_evicting_os_wait(spa); |
6371 | } | |
34dc7c2f | 6372 | |
d14cfd83 IH |
6373 | /* |
6374 | * A pool cannot be exported or destroyed if there are active | |
6375 | * references. If we are resetting a pool, allow references by | |
6376 | * fault injection handlers. | |
6377 | */ | |
f4f50a70 WA |
6378 | if (!spa_refcount_zero(spa) || (spa->spa_inject_ref != 0)) { |
6379 | error = SET_ERROR(EBUSY); | |
6380 | goto fail; | |
d14cfd83 | 6381 | } |
34dc7c2f | 6382 | |
d14cfd83 | 6383 | if (spa->spa_sync_on) { |
b128c09f BB |
6384 | /* |
6385 | * A pool cannot be exported if it has an active shared spare. | |
6386 | * This is to prevent other pools stealing the active spare | |
6387 | * from an exported pool. At user's own will, such pool can | |
6388 | * be forcedly exported. | |
6389 | */ | |
6390 | if (!force && new_state == POOL_STATE_EXPORTED && | |
6391 | spa_has_active_shared_spare(spa)) { | |
f4f50a70 WA |
6392 | error = SET_ERROR(EXDEV); |
6393 | goto fail; | |
b128c09f | 6394 | } |
34dc7c2f | 6395 | |
619f0976 GW |
6396 | /* |
6397 | * We're about to export or destroy this pool. Make sure | |
1b939560 BB |
6398 | * we stop all initialization and trim activity here before |
6399 | * we set the spa_final_txg. This will ensure that all | |
619f0976 GW |
6400 | * dirty data resulting from the initialization is |
6401 | * committed to disk before we unload the pool. | |
6402 | */ | |
6403 | if (spa->spa_root_vdev != NULL) { | |
1b939560 BB |
6404 | vdev_t *rvd = spa->spa_root_vdev; |
6405 | vdev_initialize_stop_all(rvd, VDEV_INITIALIZE_ACTIVE); | |
6406 | vdev_trim_stop_all(rvd, VDEV_TRIM_ACTIVE); | |
6407 | vdev_autotrim_stop_all(spa); | |
9a49d3f3 | 6408 | vdev_rebuild_stop_all(spa); |
619f0976 GW |
6409 | } |
6410 | ||
34dc7c2f BB |
6411 | /* |
6412 | * We want this to be reflected on every label, | |
6413 | * so mark them all dirty. spa_unload() will do the | |
6414 | * final sync that pushes these changes out. | |
6415 | */ | |
fb5f0bc8 | 6416 | if (new_state != POOL_STATE_UNINITIALIZED && !hardforce) { |
b128c09f | 6417 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f | 6418 | spa->spa_state = new_state; |
428870ff BB |
6419 | spa->spa_final_txg = spa_last_synced_txg(spa) + |
6420 | TXG_DEFER_SIZE + 1; | |
34dc7c2f | 6421 | vdev_config_dirty(spa->spa_root_vdev); |
b128c09f | 6422 | spa_config_exit(spa, SCL_ALL, FTAG); |
34dc7c2f BB |
6423 | } |
6424 | } | |
6425 | ||
d14cfd83 | 6426 | export_spa: |
d5e024cb BB |
6427 | if (new_state == POOL_STATE_DESTROYED) |
6428 | spa_event_notify(spa, NULL, NULL, ESC_ZFS_POOL_DESTROY); | |
6429 | else if (new_state == POOL_STATE_EXPORTED) | |
6430 | spa_event_notify(spa, NULL, NULL, ESC_ZFS_POOL_EXPORT); | |
34dc7c2f BB |
6431 | |
6432 | if (spa->spa_state != POOL_STATE_UNINITIALIZED) { | |
6433 | spa_unload(spa); | |
6434 | spa_deactivate(spa); | |
6435 | } | |
6436 | ||
6437 | if (oldconfig && spa->spa_config) | |
6438 | VERIFY(nvlist_dup(spa->spa_config, oldconfig, 0) == 0); | |
6439 | ||
6440 | if (new_state != POOL_STATE_UNINITIALIZED) { | |
fb5f0bc8 | 6441 | if (!hardforce) |
a1d477c2 | 6442 | spa_write_cachefile(spa, B_TRUE, B_TRUE); |
34dc7c2f | 6443 | spa_remove(spa); |
43a85362 SD |
6444 | } else { |
6445 | /* | |
6446 | * If spa_remove() is not called for this spa_t and | |
6447 | * there is any possibility that it can be reused, | |
6448 | * we make sure to reset the exporting flag. | |
6449 | */ | |
6450 | spa->spa_is_exporting = B_FALSE; | |
34dc7c2f | 6451 | } |
34dc7c2f | 6452 | |
43a85362 | 6453 | mutex_exit(&spa_namespace_lock); |
34dc7c2f | 6454 | return (0); |
f4f50a70 WA |
6455 | |
6456 | fail: | |
6457 | spa->spa_is_exporting = B_FALSE; | |
6458 | spa_async_resume(spa); | |
6459 | mutex_exit(&spa_namespace_lock); | |
6460 | return (error); | |
34dc7c2f BB |
6461 | } |
6462 | ||
6463 | /* | |
6464 | * Destroy a storage pool. | |
6465 | */ | |
6466 | int | |
4d55ea81 | 6467 | spa_destroy(const char *pool) |
34dc7c2f | 6468 | { |
fb5f0bc8 BB |
6469 | return (spa_export_common(pool, POOL_STATE_DESTROYED, NULL, |
6470 | B_FALSE, B_FALSE)); | |
34dc7c2f BB |
6471 | } |
6472 | ||
6473 | /* | |
6474 | * Export a storage pool. | |
6475 | */ | |
6476 | int | |
4d55ea81 | 6477 | spa_export(const char *pool, nvlist_t **oldconfig, boolean_t force, |
fb5f0bc8 | 6478 | boolean_t hardforce) |
34dc7c2f | 6479 | { |
fb5f0bc8 BB |
6480 | return (spa_export_common(pool, POOL_STATE_EXPORTED, oldconfig, |
6481 | force, hardforce)); | |
34dc7c2f BB |
6482 | } |
6483 | ||
6484 | /* | |
6485 | * Similar to spa_export(), this unloads the spa_t without actually removing it | |
6486 | * from the namespace in any way. | |
6487 | */ | |
6488 | int | |
4d55ea81 | 6489 | spa_reset(const char *pool) |
34dc7c2f | 6490 | { |
b128c09f | 6491 | return (spa_export_common(pool, POOL_STATE_UNINITIALIZED, NULL, |
fb5f0bc8 | 6492 | B_FALSE, B_FALSE)); |
34dc7c2f BB |
6493 | } |
6494 | ||
34dc7c2f BB |
6495 | /* |
6496 | * ========================================================================== | |
6497 | * Device manipulation | |
6498 | * ========================================================================== | |
6499 | */ | |
6500 | ||
b2255edc BB |
6501 | /* |
6502 | * This is called as a synctask to increment the draid feature flag | |
6503 | */ | |
6504 | static void | |
6505 | spa_draid_feature_incr(void *arg, dmu_tx_t *tx) | |
6506 | { | |
6507 | spa_t *spa = dmu_tx_pool(tx)->dp_spa; | |
6508 | int draid = (int)(uintptr_t)arg; | |
6509 | ||
6510 | for (int c = 0; c < draid; c++) | |
6511 | spa_feature_incr(spa, SPA_FEATURE_DRAID, tx); | |
6512 | } | |
6513 | ||
34dc7c2f BB |
6514 | /* |
6515 | * Add a device to a storage pool. | |
6516 | */ | |
6517 | int | |
6518 | spa_vdev_add(spa_t *spa, nvlist_t *nvroot) | |
6519 | { | |
b2255edc | 6520 | uint64_t txg, ndraid = 0; |
fb5f0bc8 | 6521 | int error; |
34dc7c2f BB |
6522 | vdev_t *rvd = spa->spa_root_vdev; |
6523 | vdev_t *vd, *tvd; | |
6524 | nvlist_t **spares, **l2cache; | |
6525 | uint_t nspares, nl2cache; | |
6526 | ||
572e2857 BB |
6527 | ASSERT(spa_writeable(spa)); |
6528 | ||
34dc7c2f BB |
6529 | txg = spa_vdev_enter(spa); |
6530 | ||
6531 | if ((error = spa_config_parse(spa, &vd, nvroot, NULL, 0, | |
6532 | VDEV_ALLOC_ADD)) != 0) | |
6533 | return (spa_vdev_exit(spa, NULL, txg, error)); | |
6534 | ||
b128c09f | 6535 | spa->spa_pending_vdev = vd; /* spa_vdev_exit() will clear this */ |
34dc7c2f BB |
6536 | |
6537 | if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, &spares, | |
6538 | &nspares) != 0) | |
6539 | nspares = 0; | |
6540 | ||
6541 | if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, &l2cache, | |
6542 | &nl2cache) != 0) | |
6543 | nl2cache = 0; | |
6544 | ||
b128c09f | 6545 | if (vd->vdev_children == 0 && nspares == 0 && nl2cache == 0) |
34dc7c2f | 6546 | return (spa_vdev_exit(spa, vd, txg, EINVAL)); |
34dc7c2f | 6547 | |
b128c09f | 6548 | if (vd->vdev_children != 0 && |
b2255edc | 6549 | (error = vdev_create(vd, txg, B_FALSE)) != 0) { |
b128c09f | 6550 | return (spa_vdev_exit(spa, vd, txg, error)); |
b2255edc BB |
6551 | } |
6552 | ||
6553 | /* | |
6554 | * The virtual dRAID spares must be added after vdev tree is created | |
bf169e9f | 6555 | * and the vdev guids are generated. The guid of their associated |
b2255edc BB |
6556 | * dRAID is stored in the config and used when opening the spare. |
6557 | */ | |
6558 | if ((error = vdev_draid_spare_create(nvroot, vd, &ndraid, | |
6559 | rvd->vdev_children)) == 0) { | |
6560 | if (ndraid > 0 && nvlist_lookup_nvlist_array(nvroot, | |
6561 | ZPOOL_CONFIG_SPARES, &spares, &nspares) != 0) | |
6562 | nspares = 0; | |
6563 | } else { | |
6564 | return (spa_vdev_exit(spa, vd, txg, error)); | |
6565 | } | |
34dc7c2f BB |
6566 | |
6567 | /* | |
6568 | * We must validate the spares and l2cache devices after checking the | |
6569 | * children. Otherwise, vdev_inuse() will blindly overwrite the spare. | |
6570 | */ | |
b128c09f | 6571 | if ((error = spa_validate_aux(spa, nvroot, txg, VDEV_ALLOC_ADD)) != 0) |
34dc7c2f | 6572 | return (spa_vdev_exit(spa, vd, txg, error)); |
34dc7c2f BB |
6573 | |
6574 | /* | |
a1d477c2 MA |
6575 | * If we are in the middle of a device removal, we can only add |
6576 | * devices which match the existing devices in the pool. | |
6577 | * If we are in the middle of a removal, or have some indirect | |
b2255edc | 6578 | * vdevs, we can not add raidz or dRAID top levels. |
34dc7c2f | 6579 | */ |
a1d477c2 MA |
6580 | if (spa->spa_vdev_removal != NULL || |
6581 | spa->spa_removing_phys.sr_prev_indirect_vdev != -1) { | |
6582 | for (int c = 0; c < vd->vdev_children; c++) { | |
6583 | tvd = vd->vdev_child[c]; | |
6584 | if (spa->spa_vdev_removal != NULL && | |
9e052db4 | 6585 | tvd->vdev_ashift != spa->spa_max_ashift) { |
a1d477c2 MA |
6586 | return (spa_vdev_exit(spa, vd, txg, EINVAL)); |
6587 | } | |
b2255edc BB |
6588 | /* Fail if top level vdev is raidz or a dRAID */ |
6589 | if (vdev_get_nparity(tvd) != 0) | |
a1d477c2 | 6590 | return (spa_vdev_exit(spa, vd, txg, EINVAL)); |
b2255edc | 6591 | |
a1d477c2 MA |
6592 | /* |
6593 | * Need the top level mirror to be | |
6594 | * a mirror of leaf vdevs only | |
6595 | */ | |
6596 | if (tvd->vdev_ops == &vdev_mirror_ops) { | |
6597 | for (uint64_t cid = 0; | |
6598 | cid < tvd->vdev_children; cid++) { | |
6599 | vdev_t *cvd = tvd->vdev_child[cid]; | |
6600 | if (!cvd->vdev_ops->vdev_op_leaf) { | |
6601 | return (spa_vdev_exit(spa, vd, | |
6602 | txg, EINVAL)); | |
6603 | } | |
6604 | } | |
6605 | } | |
6606 | } | |
6607 | } | |
6608 | ||
1c27024e | 6609 | for (int c = 0; c < vd->vdev_children; c++) { |
34dc7c2f BB |
6610 | tvd = vd->vdev_child[c]; |
6611 | vdev_remove_child(vd, tvd); | |
93e28d66 | 6612 | tvd->vdev_id = rvd->vdev_children; |
34dc7c2f BB |
6613 | vdev_add_child(rvd, tvd); |
6614 | vdev_config_dirty(tvd); | |
6615 | } | |
6616 | ||
6617 | if (nspares != 0) { | |
6618 | spa_set_aux_vdevs(&spa->spa_spares, spares, nspares, | |
6619 | ZPOOL_CONFIG_SPARES); | |
6620 | spa_load_spares(spa); | |
6621 | spa->spa_spares.sav_sync = B_TRUE; | |
6622 | } | |
6623 | ||
6624 | if (nl2cache != 0) { | |
6625 | spa_set_aux_vdevs(&spa->spa_l2cache, l2cache, nl2cache, | |
6626 | ZPOOL_CONFIG_L2CACHE); | |
6627 | spa_load_l2cache(spa); | |
6628 | spa->spa_l2cache.sav_sync = B_TRUE; | |
6629 | } | |
6630 | ||
b2255edc BB |
6631 | /* |
6632 | * We can't increment a feature while holding spa_vdev so we | |
6633 | * have to do it in a synctask. | |
6634 | */ | |
6635 | if (ndraid != 0) { | |
6636 | dmu_tx_t *tx; | |
6637 | ||
6638 | tx = dmu_tx_create_assigned(spa->spa_dsl_pool, txg); | |
6639 | dsl_sync_task_nowait(spa->spa_dsl_pool, spa_draid_feature_incr, | |
6640 | (void *)(uintptr_t)ndraid, tx); | |
6641 | dmu_tx_commit(tx); | |
6642 | } | |
6643 | ||
34dc7c2f BB |
6644 | /* |
6645 | * We have to be careful when adding new vdevs to an existing pool. | |
6646 | * If other threads start allocating from these vdevs before we | |
6647 | * sync the config cache, and we lose power, then upon reboot we may | |
6648 | * fail to open the pool because there are DVAs that the config cache | |
6649 | * can't translate. Therefore, we first add the vdevs without | |
6650 | * initializing metaslabs; sync the config cache (via spa_vdev_exit()); | |
6651 | * and then let spa_config_update() initialize the new metaslabs. | |
6652 | * | |
6653 | * spa_load() checks for added-but-not-initialized vdevs, so that | |
6654 | * if we lose power at any point in this sequence, the remaining | |
6655 | * steps will be completed the next time we load the pool. | |
6656 | */ | |
6657 | (void) spa_vdev_exit(spa, vd, txg, 0); | |
6658 | ||
6659 | mutex_enter(&spa_namespace_lock); | |
6660 | spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); | |
12fa0466 | 6661 | spa_event_notify(spa, NULL, NULL, ESC_ZFS_VDEV_ADD); |
34dc7c2f BB |
6662 | mutex_exit(&spa_namespace_lock); |
6663 | ||
6664 | return (0); | |
6665 | } | |
6666 | ||
6667 | /* | |
6668 | * Attach a device to a mirror. The arguments are the path to any device | |
6669 | * in the mirror, and the nvroot for the new device. If the path specifies | |
6670 | * a device that is not mirrored, we automatically insert the mirror vdev. | |
6671 | * | |
6672 | * If 'replacing' is specified, the new device is intended to replace the | |
6673 | * existing device; in this case the two devices are made into their own | |
6674 | * mirror using the 'replacing' vdev, which is functionally identical to | |
6675 | * the mirror vdev (it actually reuses all the same ops) but has a few | |
6676 | * extra rules: you can't attach to it after it's been created, and upon | |
6677 | * completion of resilvering, the first disk (the one being replaced) | |
6678 | * is automatically detached. | |
9a49d3f3 BB |
6679 | * |
6680 | * If 'rebuild' is specified, then sequential reconstruction (a.ka. rebuild) | |
6681 | * should be performed instead of traditional healing reconstruction. From | |
6682 | * an administrators perspective these are both resilver operations. | |
34dc7c2f BB |
6683 | */ |
6684 | int | |
9a49d3f3 BB |
6685 | spa_vdev_attach(spa_t *spa, uint64_t guid, nvlist_t *nvroot, int replacing, |
6686 | int rebuild) | |
34dc7c2f | 6687 | { |
428870ff | 6688 | uint64_t txg, dtl_max_txg; |
9a49d3f3 | 6689 | vdev_t *rvd = spa->spa_root_vdev; |
34dc7c2f BB |
6690 | vdev_t *oldvd, *newvd, *newrootvd, *pvd, *tvd; |
6691 | vdev_ops_t *pvops; | |
b128c09f BB |
6692 | char *oldvdpath, *newvdpath; |
6693 | int newvd_isspare; | |
6694 | int error; | |
34dc7c2f | 6695 | |
572e2857 BB |
6696 | ASSERT(spa_writeable(spa)); |
6697 | ||
34dc7c2f BB |
6698 | txg = spa_vdev_enter(spa); |
6699 | ||
b128c09f | 6700 | oldvd = spa_lookup_by_guid(spa, guid, B_FALSE); |
34dc7c2f | 6701 | |
d2734cce SD |
6702 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); |
6703 | if (spa_feature_is_active(spa, SPA_FEATURE_POOL_CHECKPOINT)) { | |
6704 | error = (spa_has_checkpoint(spa)) ? | |
6705 | ZFS_ERR_CHECKPOINT_EXISTS : ZFS_ERR_DISCARDING_CHECKPOINT; | |
6706 | return (spa_vdev_exit(spa, NULL, txg, error)); | |
6707 | } | |
6708 | ||
9a49d3f3 BB |
6709 | if (rebuild) { |
6710 | if (!spa_feature_is_enabled(spa, SPA_FEATURE_DEVICE_REBUILD)) | |
6711 | return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
6712 | ||
6713 | if (dsl_scan_resilvering(spa_get_dsl(spa))) | |
6714 | return (spa_vdev_exit(spa, NULL, txg, | |
6715 | ZFS_ERR_RESILVER_IN_PROGRESS)); | |
6716 | } else { | |
6717 | if (vdev_rebuild_active(rvd)) | |
6718 | return (spa_vdev_exit(spa, NULL, txg, | |
6719 | ZFS_ERR_REBUILD_IN_PROGRESS)); | |
6720 | } | |
6721 | ||
9e052db4 | 6722 | if (spa->spa_vdev_removal != NULL) |
a1d477c2 | 6723 | return (spa_vdev_exit(spa, NULL, txg, EBUSY)); |
a1d477c2 | 6724 | |
34dc7c2f BB |
6725 | if (oldvd == NULL) |
6726 | return (spa_vdev_exit(spa, NULL, txg, ENODEV)); | |
6727 | ||
6728 | if (!oldvd->vdev_ops->vdev_op_leaf) | |
6729 | return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
6730 | ||
6731 | pvd = oldvd->vdev_parent; | |
6732 | ||
6733 | if ((error = spa_config_parse(spa, &newrootvd, nvroot, NULL, 0, | |
5ffb9d1d | 6734 | VDEV_ALLOC_ATTACH)) != 0) |
34dc7c2f BB |
6735 | return (spa_vdev_exit(spa, NULL, txg, EINVAL)); |
6736 | ||
6737 | if (newrootvd->vdev_children != 1) | |
6738 | return (spa_vdev_exit(spa, newrootvd, txg, EINVAL)); | |
6739 | ||
6740 | newvd = newrootvd->vdev_child[0]; | |
6741 | ||
6742 | if (!newvd->vdev_ops->vdev_op_leaf) | |
6743 | return (spa_vdev_exit(spa, newrootvd, txg, EINVAL)); | |
6744 | ||
6745 | if ((error = vdev_create(newrootvd, txg, replacing)) != 0) | |
6746 | return (spa_vdev_exit(spa, newrootvd, txg, error)); | |
6747 | ||
6748 | /* | |
6749 | * Spares can't replace logs | |
6750 | */ | |
b128c09f | 6751 | if (oldvd->vdev_top->vdev_islog && newvd->vdev_isspare) |
34dc7c2f BB |
6752 | return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
6753 | ||
b2255edc BB |
6754 | /* |
6755 | * A dRAID spare can only replace a child of its parent dRAID vdev. | |
6756 | */ | |
6757 | if (newvd->vdev_ops == &vdev_draid_spare_ops && | |
6758 | oldvd->vdev_top != vdev_draid_spare_get_parent(newvd)) { | |
6759 | return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
6760 | } | |
6761 | ||
9a49d3f3 BB |
6762 | if (rebuild) { |
6763 | /* | |
b2255edc | 6764 | * For rebuilds, the top vdev must support reconstruction |
9a49d3f3 | 6765 | * using only space maps. This means the only allowable |
b2255edc | 6766 | * vdevs types are the root vdev, a mirror, or dRAID. |
9a49d3f3 | 6767 | */ |
b2255edc BB |
6768 | tvd = pvd; |
6769 | if (pvd->vdev_top != NULL) | |
6770 | tvd = pvd->vdev_top; | |
6771 | ||
6772 | if (tvd->vdev_ops != &vdev_mirror_ops && | |
6773 | tvd->vdev_ops != &vdev_root_ops && | |
6774 | tvd->vdev_ops != &vdev_draid_ops) { | |
9a49d3f3 BB |
6775 | return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
6776 | } | |
6777 | } | |
6778 | ||
34dc7c2f BB |
6779 | if (!replacing) { |
6780 | /* | |
6781 | * For attach, the only allowable parent is a mirror or the root | |
6782 | * vdev. | |
6783 | */ | |
6784 | if (pvd->vdev_ops != &vdev_mirror_ops && | |
6785 | pvd->vdev_ops != &vdev_root_ops) | |
6786 | return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
6787 | ||
6788 | pvops = &vdev_mirror_ops; | |
6789 | } else { | |
6790 | /* | |
6791 | * Active hot spares can only be replaced by inactive hot | |
6792 | * spares. | |
6793 | */ | |
6794 | if (pvd->vdev_ops == &vdev_spare_ops && | |
572e2857 | 6795 | oldvd->vdev_isspare && |
34dc7c2f BB |
6796 | !spa_has_spare(spa, newvd->vdev_guid)) |
6797 | return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
6798 | ||
6799 | /* | |
6800 | * If the source is a hot spare, and the parent isn't already a | |
6801 | * spare, then we want to create a new hot spare. Otherwise, we | |
6802 | * want to create a replacing vdev. The user is not allowed to | |
6803 | * attach to a spared vdev child unless the 'isspare' state is | |
6804 | * the same (spare replaces spare, non-spare replaces | |
6805 | * non-spare). | |
6806 | */ | |
572e2857 BB |
6807 | if (pvd->vdev_ops == &vdev_replacing_ops && |
6808 | spa_version(spa) < SPA_VERSION_MULTI_REPLACE) { | |
34dc7c2f | 6809 | return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
572e2857 BB |
6810 | } else if (pvd->vdev_ops == &vdev_spare_ops && |
6811 | newvd->vdev_isspare != oldvd->vdev_isspare) { | |
34dc7c2f | 6812 | return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
572e2857 BB |
6813 | } |
6814 | ||
6815 | if (newvd->vdev_isspare) | |
34dc7c2f BB |
6816 | pvops = &vdev_spare_ops; |
6817 | else | |
6818 | pvops = &vdev_replacing_ops; | |
6819 | } | |
6820 | ||
6821 | /* | |
9babb374 | 6822 | * Make sure the new device is big enough. |
34dc7c2f | 6823 | */ |
9babb374 | 6824 | if (newvd->vdev_asize < vdev_get_min_asize(oldvd)) |
34dc7c2f BB |
6825 | return (spa_vdev_exit(spa, newrootvd, txg, EOVERFLOW)); |
6826 | ||
6827 | /* | |
6828 | * The new device cannot have a higher alignment requirement | |
6829 | * than the top-level vdev. | |
6830 | */ | |
6831 | if (newvd->vdev_ashift > oldvd->vdev_top->vdev_ashift) | |
9a49d3f3 | 6832 | return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
34dc7c2f BB |
6833 | |
6834 | /* | |
6835 | * If this is an in-place replacement, update oldvd's path and devid | |
6836 | * to make it distinguishable from newvd, and unopenable from now on. | |
6837 | */ | |
6838 | if (strcmp(oldvd->vdev_path, newvd->vdev_path) == 0) { | |
6839 | spa_strfree(oldvd->vdev_path); | |
6840 | oldvd->vdev_path = kmem_alloc(strlen(newvd->vdev_path) + 5, | |
79c76d5b | 6841 | KM_SLEEP); |
c9e319fa JL |
6842 | (void) snprintf(oldvd->vdev_path, strlen(newvd->vdev_path) + 5, |
6843 | "%s/%s", newvd->vdev_path, "old"); | |
34dc7c2f BB |
6844 | if (oldvd->vdev_devid != NULL) { |
6845 | spa_strfree(oldvd->vdev_devid); | |
6846 | oldvd->vdev_devid = NULL; | |
6847 | } | |
6848 | } | |
6849 | ||
6850 | /* | |
6851 | * If the parent is not a mirror, or if we're replacing, insert the new | |
6852 | * mirror/replacing/spare vdev above oldvd. | |
6853 | */ | |
6854 | if (pvd->vdev_ops != pvops) | |
6855 | pvd = vdev_add_parent(oldvd, pvops); | |
6856 | ||
6857 | ASSERT(pvd->vdev_top->vdev_parent == rvd); | |
6858 | ASSERT(pvd->vdev_ops == pvops); | |
6859 | ASSERT(oldvd->vdev_parent == pvd); | |
6860 | ||
6861 | /* | |
6862 | * Extract the new device from its root and add it to pvd. | |
6863 | */ | |
6864 | vdev_remove_child(newrootvd, newvd); | |
6865 | newvd->vdev_id = pvd->vdev_children; | |
428870ff | 6866 | newvd->vdev_crtxg = oldvd->vdev_crtxg; |
34dc7c2f BB |
6867 | vdev_add_child(pvd, newvd); |
6868 | ||
6d82f98c IH |
6869 | /* |
6870 | * Reevaluate the parent vdev state. | |
6871 | */ | |
6872 | vdev_propagate_state(pvd); | |
6873 | ||
34dc7c2f BB |
6874 | tvd = newvd->vdev_top; |
6875 | ASSERT(pvd->vdev_top == tvd); | |
6876 | ASSERT(tvd->vdev_parent == rvd); | |
6877 | ||
6878 | vdev_config_dirty(tvd); | |
6879 | ||
6880 | /* | |
428870ff BB |
6881 | * Set newvd's DTL to [TXG_INITIAL, dtl_max_txg) so that we account |
6882 | * for any dmu_sync-ed blocks. It will propagate upward when | |
6883 | * spa_vdev_exit() calls vdev_dtl_reassess(). | |
34dc7c2f | 6884 | */ |
428870ff | 6885 | dtl_max_txg = txg + TXG_CONCURRENT_STATES; |
34dc7c2f | 6886 | |
9a49d3f3 BB |
6887 | vdev_dtl_dirty(newvd, DTL_MISSING, |
6888 | TXG_INITIAL, dtl_max_txg - TXG_INITIAL); | |
34dc7c2f | 6889 | |
9babb374 | 6890 | if (newvd->vdev_isspare) { |
34dc7c2f | 6891 | spa_spare_activate(newvd); |
12fa0466 | 6892 | spa_event_notify(spa, newvd, NULL, ESC_ZFS_VDEV_SPARE); |
9babb374 BB |
6893 | } |
6894 | ||
b128c09f BB |
6895 | oldvdpath = spa_strdup(oldvd->vdev_path); |
6896 | newvdpath = spa_strdup(newvd->vdev_path); | |
6897 | newvd_isspare = newvd->vdev_isspare; | |
34dc7c2f BB |
6898 | |
6899 | /* | |
6900 | * Mark newvd's DTL dirty in this txg. | |
6901 | */ | |
6902 | vdev_dirty(tvd, VDD_DTL, newvd, txg); | |
6903 | ||
428870ff | 6904 | /* |
9a49d3f3 BB |
6905 | * Schedule the resilver or rebuild to restart in the future. We do |
6906 | * this to ensure that dmu_sync-ed blocks have been stitched into the | |
6907 | * respective datasets. | |
428870ff | 6908 | */ |
9a49d3f3 BB |
6909 | if (rebuild) { |
6910 | newvd->vdev_rebuild_txg = txg; | |
6911 | ||
6912 | vdev_rebuild(tvd); | |
6913 | } else { | |
6914 | newvd->vdev_resilver_txg = txg; | |
6915 | ||
6916 | if (dsl_scan_resilvering(spa_get_dsl(spa)) && | |
6917 | spa_feature_is_enabled(spa, SPA_FEATURE_RESILVER_DEFER)) { | |
6918 | vdev_defer_resilver(newvd); | |
6919 | } else { | |
6920 | dsl_scan_restart_resilver(spa->spa_dsl_pool, | |
6921 | dtl_max_txg); | |
6922 | } | |
6923 | } | |
428870ff | 6924 | |
fb390aaf | 6925 | if (spa->spa_bootfs) |
12fa0466 | 6926 | spa_event_notify(spa, newvd, NULL, ESC_ZFS_BOOTFS_VDEV_ATTACH); |
fb390aaf | 6927 | |
12fa0466 | 6928 | spa_event_notify(spa, newvd, NULL, ESC_ZFS_VDEV_ATTACH); |
fb390aaf | 6929 | |
428870ff BB |
6930 | /* |
6931 | * Commit the config | |
6932 | */ | |
6933 | (void) spa_vdev_exit(spa, newrootvd, dtl_max_txg, 0); | |
34dc7c2f | 6934 | |
6f1ffb06 | 6935 | spa_history_log_internal(spa, "vdev attach", NULL, |
428870ff | 6936 | "%s vdev=%s %s vdev=%s", |
45d1cae3 BB |
6937 | replacing && newvd_isspare ? "spare in" : |
6938 | replacing ? "replace" : "attach", newvdpath, | |
6939 | replacing ? "for" : "to", oldvdpath); | |
b128c09f BB |
6940 | |
6941 | spa_strfree(oldvdpath); | |
6942 | spa_strfree(newvdpath); | |
6943 | ||
34dc7c2f BB |
6944 | return (0); |
6945 | } | |
6946 | ||
6947 | /* | |
6948 | * Detach a device from a mirror or replacing vdev. | |
d3cc8b15 | 6949 | * |
34dc7c2f BB |
6950 | * If 'replace_done' is specified, only detach if the parent |
6951 | * is a replacing vdev. | |
6952 | */ | |
6953 | int | |
fb5f0bc8 | 6954 | spa_vdev_detach(spa_t *spa, uint64_t guid, uint64_t pguid, int replace_done) |
34dc7c2f BB |
6955 | { |
6956 | uint64_t txg; | |
fb5f0bc8 | 6957 | int error; |
2a8ba608 | 6958 | vdev_t *rvd __maybe_unused = spa->spa_root_vdev; |
34dc7c2f BB |
6959 | vdev_t *vd, *pvd, *cvd, *tvd; |
6960 | boolean_t unspare = B_FALSE; | |
d4ed6673 | 6961 | uint64_t unspare_guid = 0; |
428870ff | 6962 | char *vdpath; |
1c27024e | 6963 | |
572e2857 BB |
6964 | ASSERT(spa_writeable(spa)); |
6965 | ||
9a49d3f3 | 6966 | txg = spa_vdev_detach_enter(spa, guid); |
34dc7c2f | 6967 | |
b128c09f | 6968 | vd = spa_lookup_by_guid(spa, guid, B_FALSE); |
34dc7c2f | 6969 | |
d2734cce SD |
6970 | /* |
6971 | * Besides being called directly from the userland through the | |
6972 | * ioctl interface, spa_vdev_detach() can be potentially called | |
6973 | * at the end of spa_vdev_resilver_done(). | |
6974 | * | |
6975 | * In the regular case, when we have a checkpoint this shouldn't | |
6976 | * happen as we never empty the DTLs of a vdev during the scrub | |
6977 | * [see comment in dsl_scan_done()]. Thus spa_vdev_resilvering_done() | |
6978 | * should never get here when we have a checkpoint. | |
6979 | * | |
6980 | * That said, even in a case when we checkpoint the pool exactly | |
6981 | * as spa_vdev_resilver_done() calls this function everything | |
6982 | * should be fine as the resilver will return right away. | |
6983 | */ | |
6984 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); | |
6985 | if (spa_feature_is_active(spa, SPA_FEATURE_POOL_CHECKPOINT)) { | |
6986 | error = (spa_has_checkpoint(spa)) ? | |
6987 | ZFS_ERR_CHECKPOINT_EXISTS : ZFS_ERR_DISCARDING_CHECKPOINT; | |
6988 | return (spa_vdev_exit(spa, NULL, txg, error)); | |
6989 | } | |
6990 | ||
34dc7c2f BB |
6991 | if (vd == NULL) |
6992 | return (spa_vdev_exit(spa, NULL, txg, ENODEV)); | |
6993 | ||
6994 | if (!vd->vdev_ops->vdev_op_leaf) | |
6995 | return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
6996 | ||
6997 | pvd = vd->vdev_parent; | |
6998 | ||
fb5f0bc8 BB |
6999 | /* |
7000 | * If the parent/child relationship is not as expected, don't do it. | |
7001 | * Consider M(A,R(B,C)) -- that is, a mirror of A with a replacing | |
7002 | * vdev that's replacing B with C. The user's intent in replacing | |
7003 | * is to go from M(A,B) to M(A,C). If the user decides to cancel | |
7004 | * the replace by detaching C, the expected behavior is to end up | |
7005 | * M(A,B). But suppose that right after deciding to detach C, | |
7006 | * the replacement of B completes. We would have M(A,C), and then | |
7007 | * ask to detach C, which would leave us with just A -- not what | |
7008 | * the user wanted. To prevent this, we make sure that the | |
7009 | * parent/child relationship hasn't changed -- in this example, | |
7010 | * that C's parent is still the replacing vdev R. | |
7011 | */ | |
7012 | if (pvd->vdev_guid != pguid && pguid != 0) | |
7013 | return (spa_vdev_exit(spa, NULL, txg, EBUSY)); | |
7014 | ||
34dc7c2f | 7015 | /* |
572e2857 | 7016 | * Only 'replacing' or 'spare' vdevs can be replaced. |
34dc7c2f | 7017 | */ |
572e2857 BB |
7018 | if (replace_done && pvd->vdev_ops != &vdev_replacing_ops && |
7019 | pvd->vdev_ops != &vdev_spare_ops) | |
7020 | return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
34dc7c2f BB |
7021 | |
7022 | ASSERT(pvd->vdev_ops != &vdev_spare_ops || | |
7023 | spa_version(spa) >= SPA_VERSION_SPARES); | |
7024 | ||
7025 | /* | |
7026 | * Only mirror, replacing, and spare vdevs support detach. | |
7027 | */ | |
7028 | if (pvd->vdev_ops != &vdev_replacing_ops && | |
7029 | pvd->vdev_ops != &vdev_mirror_ops && | |
7030 | pvd->vdev_ops != &vdev_spare_ops) | |
7031 | return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
7032 | ||
7033 | /* | |
fb5f0bc8 BB |
7034 | * If this device has the only valid copy of some data, |
7035 | * we cannot safely detach it. | |
34dc7c2f | 7036 | */ |
fb5f0bc8 | 7037 | if (vdev_dtl_required(vd)) |
34dc7c2f BB |
7038 | return (spa_vdev_exit(spa, NULL, txg, EBUSY)); |
7039 | ||
fb5f0bc8 | 7040 | ASSERT(pvd->vdev_children >= 2); |
34dc7c2f | 7041 | |
b128c09f BB |
7042 | /* |
7043 | * If we are detaching the second disk from a replacing vdev, then | |
7044 | * check to see if we changed the original vdev's path to have "/old" | |
7045 | * at the end in spa_vdev_attach(). If so, undo that change now. | |
7046 | */ | |
572e2857 BB |
7047 | if (pvd->vdev_ops == &vdev_replacing_ops && vd->vdev_id > 0 && |
7048 | vd->vdev_path != NULL) { | |
7049 | size_t len = strlen(vd->vdev_path); | |
7050 | ||
1c27024e | 7051 | for (int c = 0; c < pvd->vdev_children; c++) { |
572e2857 BB |
7052 | cvd = pvd->vdev_child[c]; |
7053 | ||
7054 | if (cvd == vd || cvd->vdev_path == NULL) | |
7055 | continue; | |
7056 | ||
7057 | if (strncmp(cvd->vdev_path, vd->vdev_path, len) == 0 && | |
7058 | strcmp(cvd->vdev_path + len, "/old") == 0) { | |
7059 | spa_strfree(cvd->vdev_path); | |
7060 | cvd->vdev_path = spa_strdup(vd->vdev_path); | |
7061 | break; | |
7062 | } | |
b128c09f BB |
7063 | } |
7064 | } | |
7065 | ||
34dc7c2f | 7066 | /* |
b2255edc BB |
7067 | * If we are detaching the original disk from a normal spare, then it |
7068 | * implies that the spare should become a real disk, and be removed | |
7069 | * from the active spare list for the pool. dRAID spares on the | |
7070 | * other hand are coupled to the pool and thus should never be removed | |
7071 | * from the spares list. | |
34dc7c2f | 7072 | */ |
b2255edc BB |
7073 | if (pvd->vdev_ops == &vdev_spare_ops && vd->vdev_id == 0) { |
7074 | vdev_t *last_cvd = pvd->vdev_child[pvd->vdev_children - 1]; | |
7075 | ||
7076 | if (last_cvd->vdev_isspare && | |
7077 | last_cvd->vdev_ops != &vdev_draid_spare_ops) { | |
7078 | unspare = B_TRUE; | |
7079 | } | |
7080 | } | |
34dc7c2f BB |
7081 | |
7082 | /* | |
7083 | * Erase the disk labels so the disk can be used for other things. | |
7084 | * This must be done after all other error cases are handled, | |
7085 | * but before we disembowel vd (so we can still do I/O to it). | |
7086 | * But if we can't do it, don't treat the error as fatal -- | |
7087 | * it may be that the unwritability of the disk is the reason | |
7088 | * it's being detached! | |
7089 | */ | |
7090 | error = vdev_label_init(vd, 0, VDEV_LABEL_REMOVE); | |
7091 | ||
7092 | /* | |
7093 | * Remove vd from its parent and compact the parent's children. | |
7094 | */ | |
7095 | vdev_remove_child(pvd, vd); | |
7096 | vdev_compact_children(pvd); | |
7097 | ||
7098 | /* | |
7099 | * Remember one of the remaining children so we can get tvd below. | |
7100 | */ | |
572e2857 | 7101 | cvd = pvd->vdev_child[pvd->vdev_children - 1]; |
34dc7c2f BB |
7102 | |
7103 | /* | |
7104 | * If we need to remove the remaining child from the list of hot spares, | |
fb5f0bc8 BB |
7105 | * do it now, marking the vdev as no longer a spare in the process. |
7106 | * We must do this before vdev_remove_parent(), because that can | |
7107 | * change the GUID if it creates a new toplevel GUID. For a similar | |
7108 | * reason, we must remove the spare now, in the same txg as the detach; | |
7109 | * otherwise someone could attach a new sibling, change the GUID, and | |
7110 | * the subsequent attempt to spa_vdev_remove(unspare_guid) would fail. | |
34dc7c2f BB |
7111 | */ |
7112 | if (unspare) { | |
7113 | ASSERT(cvd->vdev_isspare); | |
7114 | spa_spare_remove(cvd); | |
7115 | unspare_guid = cvd->vdev_guid; | |
fb5f0bc8 | 7116 | (void) spa_vdev_remove(spa, unspare_guid, B_TRUE); |
572e2857 | 7117 | cvd->vdev_unspare = B_TRUE; |
34dc7c2f BB |
7118 | } |
7119 | ||
428870ff BB |
7120 | /* |
7121 | * If the parent mirror/replacing vdev only has one child, | |
7122 | * the parent is no longer needed. Remove it from the tree. | |
7123 | */ | |
572e2857 BB |
7124 | if (pvd->vdev_children == 1) { |
7125 | if (pvd->vdev_ops == &vdev_spare_ops) | |
7126 | cvd->vdev_unspare = B_FALSE; | |
428870ff | 7127 | vdev_remove_parent(cvd); |
572e2857 BB |
7128 | } |
7129 | ||
428870ff BB |
7130 | /* |
7131 | * We don't set tvd until now because the parent we just removed | |
7132 | * may have been the previous top-level vdev. | |
7133 | */ | |
7134 | tvd = cvd->vdev_top; | |
7135 | ASSERT(tvd->vdev_parent == rvd); | |
7136 | ||
7137 | /* | |
7138 | * Reevaluate the parent vdev state. | |
7139 | */ | |
7140 | vdev_propagate_state(cvd); | |
7141 | ||
7142 | /* | |
7143 | * If the 'autoexpand' property is set on the pool then automatically | |
7144 | * try to expand the size of the pool. For example if the device we | |
7145 | * just detached was smaller than the others, it may be possible to | |
7146 | * add metaslabs (i.e. grow the pool). We need to reopen the vdev | |
7147 | * first so that we can obtain the updated sizes of the leaf vdevs. | |
7148 | */ | |
7149 | if (spa->spa_autoexpand) { | |
7150 | vdev_reopen(tvd); | |
7151 | vdev_expand(tvd, txg); | |
7152 | } | |
7153 | ||
7154 | vdev_config_dirty(tvd); | |
7155 | ||
7156 | /* | |
7157 | * Mark vd's DTL as dirty in this txg. vdev_dtl_sync() will see that | |
7158 | * vd->vdev_detached is set and free vd's DTL object in syncing context. | |
7159 | * But first make sure we're not on any *other* txg's DTL list, to | |
7160 | * prevent vd from being accessed after it's freed. | |
7161 | */ | |
b6ca6193 | 7162 | vdpath = spa_strdup(vd->vdev_path ? vd->vdev_path : "none"); |
1c27024e | 7163 | for (int t = 0; t < TXG_SIZE; t++) |
428870ff BB |
7164 | (void) txg_list_remove_this(&tvd->vdev_dtl_list, vd, t); |
7165 | vd->vdev_detached = B_TRUE; | |
7166 | vdev_dirty(tvd, VDD_DTL, vd, txg); | |
7167 | ||
12fa0466 | 7168 | spa_event_notify(spa, vd, NULL, ESC_ZFS_VDEV_REMOVE); |
e60e158e | 7169 | spa_notify_waiters(spa); |
428870ff | 7170 | |
572e2857 BB |
7171 | /* hang on to the spa before we release the lock */ |
7172 | spa_open_ref(spa, FTAG); | |
7173 | ||
428870ff BB |
7174 | error = spa_vdev_exit(spa, vd, txg, 0); |
7175 | ||
6f1ffb06 | 7176 | spa_history_log_internal(spa, "detach", NULL, |
428870ff BB |
7177 | "vdev=%s", vdpath); |
7178 | spa_strfree(vdpath); | |
7179 | ||
7180 | /* | |
7181 | * If this was the removal of the original device in a hot spare vdev, | |
7182 | * then we want to go through and remove the device from the hot spare | |
7183 | * list of every other pool. | |
7184 | */ | |
7185 | if (unspare) { | |
572e2857 BB |
7186 | spa_t *altspa = NULL; |
7187 | ||
428870ff | 7188 | mutex_enter(&spa_namespace_lock); |
572e2857 BB |
7189 | while ((altspa = spa_next(altspa)) != NULL) { |
7190 | if (altspa->spa_state != POOL_STATE_ACTIVE || | |
7191 | altspa == spa) | |
428870ff | 7192 | continue; |
572e2857 BB |
7193 | |
7194 | spa_open_ref(altspa, FTAG); | |
428870ff | 7195 | mutex_exit(&spa_namespace_lock); |
572e2857 | 7196 | (void) spa_vdev_remove(altspa, unspare_guid, B_TRUE); |
428870ff | 7197 | mutex_enter(&spa_namespace_lock); |
572e2857 | 7198 | spa_close(altspa, FTAG); |
428870ff BB |
7199 | } |
7200 | mutex_exit(&spa_namespace_lock); | |
572e2857 BB |
7201 | |
7202 | /* search the rest of the vdevs for spares to remove */ | |
7203 | spa_vdev_resilver_done(spa); | |
428870ff BB |
7204 | } |
7205 | ||
572e2857 BB |
7206 | /* all done with the spa; OK to release */ |
7207 | mutex_enter(&spa_namespace_lock); | |
7208 | spa_close(spa, FTAG); | |
7209 | mutex_exit(&spa_namespace_lock); | |
7210 | ||
428870ff BB |
7211 | return (error); |
7212 | } | |
7213 | ||
c10d37dd GW |
7214 | static int |
7215 | spa_vdev_initialize_impl(spa_t *spa, uint64_t guid, uint64_t cmd_type, | |
7216 | list_t *vd_list) | |
619f0976 | 7217 | { |
c10d37dd GW |
7218 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); |
7219 | ||
619f0976 GW |
7220 | spa_config_enter(spa, SCL_CONFIG | SCL_STATE, FTAG, RW_READER); |
7221 | ||
7222 | /* Look up vdev and ensure it's a leaf. */ | |
7223 | vdev_t *vd = spa_lookup_by_guid(spa, guid, B_FALSE); | |
7224 | if (vd == NULL || vd->vdev_detached) { | |
7225 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
619f0976 GW |
7226 | return (SET_ERROR(ENODEV)); |
7227 | } else if (!vd->vdev_ops->vdev_op_leaf || !vdev_is_concrete(vd)) { | |
7228 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
619f0976 GW |
7229 | return (SET_ERROR(EINVAL)); |
7230 | } else if (!vdev_writeable(vd)) { | |
7231 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
619f0976 GW |
7232 | return (SET_ERROR(EROFS)); |
7233 | } | |
7234 | mutex_enter(&vd->vdev_initialize_lock); | |
7235 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
7236 | ||
7237 | /* | |
7238 | * When we activate an initialize action we check to see | |
7239 | * if the vdev_initialize_thread is NULL. We do this instead | |
7240 | * of using the vdev_initialize_state since there might be | |
7241 | * a previous initialization process which has completed but | |
7242 | * the thread is not exited. | |
7243 | */ | |
1b939560 | 7244 | if (cmd_type == POOL_INITIALIZE_START && |
619f0976 GW |
7245 | (vd->vdev_initialize_thread != NULL || |
7246 | vd->vdev_top->vdev_removing)) { | |
7247 | mutex_exit(&vd->vdev_initialize_lock); | |
619f0976 GW |
7248 | return (SET_ERROR(EBUSY)); |
7249 | } else if (cmd_type == POOL_INITIALIZE_CANCEL && | |
7250 | (vd->vdev_initialize_state != VDEV_INITIALIZE_ACTIVE && | |
7251 | vd->vdev_initialize_state != VDEV_INITIALIZE_SUSPENDED)) { | |
7252 | mutex_exit(&vd->vdev_initialize_lock); | |
619f0976 GW |
7253 | return (SET_ERROR(ESRCH)); |
7254 | } else if (cmd_type == POOL_INITIALIZE_SUSPEND && | |
7255 | vd->vdev_initialize_state != VDEV_INITIALIZE_ACTIVE) { | |
7256 | mutex_exit(&vd->vdev_initialize_lock); | |
619f0976 GW |
7257 | return (SET_ERROR(ESRCH)); |
7258 | } | |
7259 | ||
7260 | switch (cmd_type) { | |
1b939560 | 7261 | case POOL_INITIALIZE_START: |
619f0976 GW |
7262 | vdev_initialize(vd); |
7263 | break; | |
7264 | case POOL_INITIALIZE_CANCEL: | |
c10d37dd | 7265 | vdev_initialize_stop(vd, VDEV_INITIALIZE_CANCELED, vd_list); |
619f0976 GW |
7266 | break; |
7267 | case POOL_INITIALIZE_SUSPEND: | |
c10d37dd | 7268 | vdev_initialize_stop(vd, VDEV_INITIALIZE_SUSPENDED, vd_list); |
619f0976 GW |
7269 | break; |
7270 | default: | |
7271 | panic("invalid cmd_type %llu", (unsigned long long)cmd_type); | |
7272 | } | |
7273 | mutex_exit(&vd->vdev_initialize_lock); | |
7274 | ||
c10d37dd GW |
7275 | return (0); |
7276 | } | |
7277 | ||
7278 | int | |
7279 | spa_vdev_initialize(spa_t *spa, nvlist_t *nv, uint64_t cmd_type, | |
7280 | nvlist_t *vdev_errlist) | |
7281 | { | |
7282 | int total_errors = 0; | |
7283 | list_t vd_list; | |
7284 | ||
7285 | list_create(&vd_list, sizeof (vdev_t), | |
7286 | offsetof(vdev_t, vdev_initialize_node)); | |
7287 | ||
7288 | /* | |
7289 | * We hold the namespace lock through the whole function | |
7290 | * to prevent any changes to the pool while we're starting or | |
7291 | * stopping initialization. The config and state locks are held so that | |
7292 | * we can properly assess the vdev state before we commit to | |
7293 | * the initializing operation. | |
7294 | */ | |
7295 | mutex_enter(&spa_namespace_lock); | |
7296 | ||
7297 | for (nvpair_t *pair = nvlist_next_nvpair(nv, NULL); | |
7298 | pair != NULL; pair = nvlist_next_nvpair(nv, pair)) { | |
7299 | uint64_t vdev_guid = fnvpair_value_uint64(pair); | |
7300 | ||
7301 | int error = spa_vdev_initialize_impl(spa, vdev_guid, cmd_type, | |
7302 | &vd_list); | |
7303 | if (error != 0) { | |
7304 | char guid_as_str[MAXNAMELEN]; | |
7305 | ||
7306 | (void) snprintf(guid_as_str, sizeof (guid_as_str), | |
7307 | "%llu", (unsigned long long)vdev_guid); | |
7308 | fnvlist_add_int64(vdev_errlist, guid_as_str, error); | |
7309 | total_errors++; | |
7310 | } | |
7311 | } | |
7312 | ||
7313 | /* Wait for all initialize threads to stop. */ | |
7314 | vdev_initialize_stop_wait(spa, &vd_list); | |
7315 | ||
619f0976 GW |
7316 | /* Sync out the initializing state */ |
7317 | txg_wait_synced(spa->spa_dsl_pool, 0); | |
7318 | mutex_exit(&spa_namespace_lock); | |
7319 | ||
c10d37dd | 7320 | list_destroy(&vd_list); |
619f0976 | 7321 | |
c10d37dd GW |
7322 | return (total_errors); |
7323 | } | |
619f0976 | 7324 | |
1b939560 BB |
7325 | static int |
7326 | spa_vdev_trim_impl(spa_t *spa, uint64_t guid, uint64_t cmd_type, | |
7327 | uint64_t rate, boolean_t partial, boolean_t secure, list_t *vd_list) | |
7328 | { | |
7329 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); | |
7330 | ||
7331 | spa_config_enter(spa, SCL_CONFIG | SCL_STATE, FTAG, RW_READER); | |
7332 | ||
7333 | /* Look up vdev and ensure it's a leaf. */ | |
7334 | vdev_t *vd = spa_lookup_by_guid(spa, guid, B_FALSE); | |
7335 | if (vd == NULL || vd->vdev_detached) { | |
7336 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
7337 | return (SET_ERROR(ENODEV)); | |
7338 | } else if (!vd->vdev_ops->vdev_op_leaf || !vdev_is_concrete(vd)) { | |
7339 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
7340 | return (SET_ERROR(EINVAL)); | |
7341 | } else if (!vdev_writeable(vd)) { | |
7342 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
7343 | return (SET_ERROR(EROFS)); | |
7344 | } else if (!vd->vdev_has_trim) { | |
7345 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
7346 | return (SET_ERROR(EOPNOTSUPP)); | |
7347 | } else if (secure && !vd->vdev_has_securetrim) { | |
7348 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
7349 | return (SET_ERROR(EOPNOTSUPP)); | |
7350 | } | |
7351 | mutex_enter(&vd->vdev_trim_lock); | |
7352 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
7353 | ||
7354 | /* | |
7355 | * When we activate a TRIM action we check to see if the | |
7356 | * vdev_trim_thread is NULL. We do this instead of using the | |
7357 | * vdev_trim_state since there might be a previous TRIM process | |
7358 | * which has completed but the thread is not exited. | |
7359 | */ | |
7360 | if (cmd_type == POOL_TRIM_START && | |
7361 | (vd->vdev_trim_thread != NULL || vd->vdev_top->vdev_removing)) { | |
7362 | mutex_exit(&vd->vdev_trim_lock); | |
7363 | return (SET_ERROR(EBUSY)); | |
7364 | } else if (cmd_type == POOL_TRIM_CANCEL && | |
7365 | (vd->vdev_trim_state != VDEV_TRIM_ACTIVE && | |
7366 | vd->vdev_trim_state != VDEV_TRIM_SUSPENDED)) { | |
7367 | mutex_exit(&vd->vdev_trim_lock); | |
7368 | return (SET_ERROR(ESRCH)); | |
7369 | } else if (cmd_type == POOL_TRIM_SUSPEND && | |
7370 | vd->vdev_trim_state != VDEV_TRIM_ACTIVE) { | |
7371 | mutex_exit(&vd->vdev_trim_lock); | |
7372 | return (SET_ERROR(ESRCH)); | |
7373 | } | |
7374 | ||
7375 | switch (cmd_type) { | |
7376 | case POOL_TRIM_START: | |
7377 | vdev_trim(vd, rate, partial, secure); | |
7378 | break; | |
7379 | case POOL_TRIM_CANCEL: | |
7380 | vdev_trim_stop(vd, VDEV_TRIM_CANCELED, vd_list); | |
7381 | break; | |
7382 | case POOL_TRIM_SUSPEND: | |
7383 | vdev_trim_stop(vd, VDEV_TRIM_SUSPENDED, vd_list); | |
7384 | break; | |
7385 | default: | |
7386 | panic("invalid cmd_type %llu", (unsigned long long)cmd_type); | |
7387 | } | |
7388 | mutex_exit(&vd->vdev_trim_lock); | |
7389 | ||
7390 | return (0); | |
7391 | } | |
7392 | ||
7393 | /* | |
7394 | * Initiates a manual TRIM for the requested vdevs. This kicks off individual | |
7395 | * TRIM threads for each child vdev. These threads pass over all of the free | |
7396 | * space in the vdev's metaslabs and issues TRIM commands for that space. | |
7397 | */ | |
7398 | int | |
7399 | spa_vdev_trim(spa_t *spa, nvlist_t *nv, uint64_t cmd_type, uint64_t rate, | |
7400 | boolean_t partial, boolean_t secure, nvlist_t *vdev_errlist) | |
7401 | { | |
7402 | int total_errors = 0; | |
7403 | list_t vd_list; | |
7404 | ||
7405 | list_create(&vd_list, sizeof (vdev_t), | |
7406 | offsetof(vdev_t, vdev_trim_node)); | |
7407 | ||
7408 | /* | |
7409 | * We hold the namespace lock through the whole function | |
7410 | * to prevent any changes to the pool while we're starting or | |
7411 | * stopping TRIM. The config and state locks are held so that | |
7412 | * we can properly assess the vdev state before we commit to | |
7413 | * the TRIM operation. | |
7414 | */ | |
7415 | mutex_enter(&spa_namespace_lock); | |
7416 | ||
7417 | for (nvpair_t *pair = nvlist_next_nvpair(nv, NULL); | |
7418 | pair != NULL; pair = nvlist_next_nvpair(nv, pair)) { | |
7419 | uint64_t vdev_guid = fnvpair_value_uint64(pair); | |
7420 | ||
7421 | int error = spa_vdev_trim_impl(spa, vdev_guid, cmd_type, | |
7422 | rate, partial, secure, &vd_list); | |
7423 | if (error != 0) { | |
7424 | char guid_as_str[MAXNAMELEN]; | |
7425 | ||
7426 | (void) snprintf(guid_as_str, sizeof (guid_as_str), | |
7427 | "%llu", (unsigned long long)vdev_guid); | |
7428 | fnvlist_add_int64(vdev_errlist, guid_as_str, error); | |
7429 | total_errors++; | |
7430 | } | |
7431 | } | |
7432 | ||
7433 | /* Wait for all TRIM threads to stop. */ | |
7434 | vdev_trim_stop_wait(spa, &vd_list); | |
7435 | ||
7436 | /* Sync out the TRIM state */ | |
7437 | txg_wait_synced(spa->spa_dsl_pool, 0); | |
7438 | mutex_exit(&spa_namespace_lock); | |
7439 | ||
7440 | list_destroy(&vd_list); | |
7441 | ||
7442 | return (total_errors); | |
7443 | } | |
7444 | ||
428870ff BB |
7445 | /* |
7446 | * Split a set of devices from their mirrors, and create a new pool from them. | |
7447 | */ | |
7448 | int | |
7449 | spa_vdev_split_mirror(spa_t *spa, char *newname, nvlist_t *config, | |
7450 | nvlist_t *props, boolean_t exp) | |
7451 | { | |
7452 | int error = 0; | |
7453 | uint64_t txg, *glist; | |
7454 | spa_t *newspa; | |
7455 | uint_t c, children, lastlog; | |
7456 | nvlist_t **child, *nvl, *tmp; | |
7457 | dmu_tx_t *tx; | |
7458 | char *altroot = NULL; | |
7459 | vdev_t *rvd, **vml = NULL; /* vdev modify list */ | |
7460 | boolean_t activate_slog; | |
7461 | ||
572e2857 | 7462 | ASSERT(spa_writeable(spa)); |
428870ff BB |
7463 | |
7464 | txg = spa_vdev_enter(spa); | |
7465 | ||
d2734cce SD |
7466 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); |
7467 | if (spa_feature_is_active(spa, SPA_FEATURE_POOL_CHECKPOINT)) { | |
7468 | error = (spa_has_checkpoint(spa)) ? | |
7469 | ZFS_ERR_CHECKPOINT_EXISTS : ZFS_ERR_DISCARDING_CHECKPOINT; | |
7470 | return (spa_vdev_exit(spa, NULL, txg, error)); | |
7471 | } | |
7472 | ||
428870ff BB |
7473 | /* clear the log and flush everything up to now */ |
7474 | activate_slog = spa_passivate_log(spa); | |
7475 | (void) spa_vdev_config_exit(spa, NULL, txg, 0, FTAG); | |
a1d477c2 | 7476 | error = spa_reset_logs(spa); |
428870ff BB |
7477 | txg = spa_vdev_config_enter(spa); |
7478 | ||
7479 | if (activate_slog) | |
7480 | spa_activate_log(spa); | |
7481 | ||
7482 | if (error != 0) | |
7483 | return (spa_vdev_exit(spa, NULL, txg, error)); | |
7484 | ||
7485 | /* check new spa name before going any further */ | |
7486 | if (spa_lookup(newname) != NULL) | |
7487 | return (spa_vdev_exit(spa, NULL, txg, EEXIST)); | |
7488 | ||
7489 | /* | |
7490 | * scan through all the children to ensure they're all mirrors | |
7491 | */ | |
7492 | if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvl) != 0 || | |
7493 | nvlist_lookup_nvlist_array(nvl, ZPOOL_CONFIG_CHILDREN, &child, | |
7494 | &children) != 0) | |
7495 | return (spa_vdev_exit(spa, NULL, txg, EINVAL)); | |
7496 | ||
7497 | /* first, check to ensure we've got the right child count */ | |
7498 | rvd = spa->spa_root_vdev; | |
7499 | lastlog = 0; | |
7500 | for (c = 0; c < rvd->vdev_children; c++) { | |
7501 | vdev_t *vd = rvd->vdev_child[c]; | |
7502 | ||
7503 | /* don't count the holes & logs as children */ | |
1b664952 GA |
7504 | if (vd->vdev_islog || (vd->vdev_ops != &vdev_indirect_ops && |
7505 | !vdev_is_concrete(vd))) { | |
428870ff BB |
7506 | if (lastlog == 0) |
7507 | lastlog = c; | |
7508 | continue; | |
7509 | } | |
7510 | ||
7511 | lastlog = 0; | |
7512 | } | |
7513 | if (children != (lastlog != 0 ? lastlog : rvd->vdev_children)) | |
7514 | return (spa_vdev_exit(spa, NULL, txg, EINVAL)); | |
7515 | ||
7516 | /* next, ensure no spare or cache devices are part of the split */ | |
7517 | if (nvlist_lookup_nvlist(nvl, ZPOOL_CONFIG_SPARES, &tmp) == 0 || | |
7518 | nvlist_lookup_nvlist(nvl, ZPOOL_CONFIG_L2CACHE, &tmp) == 0) | |
7519 | return (spa_vdev_exit(spa, NULL, txg, EINVAL)); | |
7520 | ||
79c76d5b BB |
7521 | vml = kmem_zalloc(children * sizeof (vdev_t *), KM_SLEEP); |
7522 | glist = kmem_zalloc(children * sizeof (uint64_t), KM_SLEEP); | |
428870ff BB |
7523 | |
7524 | /* then, loop over each vdev and validate it */ | |
7525 | for (c = 0; c < children; c++) { | |
7526 | uint64_t is_hole = 0; | |
7527 | ||
7528 | (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_HOLE, | |
7529 | &is_hole); | |
7530 | ||
7531 | if (is_hole != 0) { | |
7532 | if (spa->spa_root_vdev->vdev_child[c]->vdev_ishole || | |
7533 | spa->spa_root_vdev->vdev_child[c]->vdev_islog) { | |
7534 | continue; | |
7535 | } else { | |
2e528b49 | 7536 | error = SET_ERROR(EINVAL); |
428870ff BB |
7537 | break; |
7538 | } | |
7539 | } | |
7540 | ||
1b664952 GA |
7541 | /* deal with indirect vdevs */ |
7542 | if (spa->spa_root_vdev->vdev_child[c]->vdev_ops == | |
7543 | &vdev_indirect_ops) | |
7544 | continue; | |
7545 | ||
428870ff BB |
7546 | /* which disk is going to be split? */ |
7547 | if (nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_GUID, | |
7548 | &glist[c]) != 0) { | |
2e528b49 | 7549 | error = SET_ERROR(EINVAL); |
428870ff BB |
7550 | break; |
7551 | } | |
7552 | ||
7553 | /* look it up in the spa */ | |
7554 | vml[c] = spa_lookup_by_guid(spa, glist[c], B_FALSE); | |
7555 | if (vml[c] == NULL) { | |
2e528b49 | 7556 | error = SET_ERROR(ENODEV); |
428870ff BB |
7557 | break; |
7558 | } | |
7559 | ||
7560 | /* make sure there's nothing stopping the split */ | |
7561 | if (vml[c]->vdev_parent->vdev_ops != &vdev_mirror_ops || | |
7562 | vml[c]->vdev_islog || | |
a1d477c2 | 7563 | !vdev_is_concrete(vml[c]) || |
428870ff BB |
7564 | vml[c]->vdev_isspare || |
7565 | vml[c]->vdev_isl2cache || | |
7566 | !vdev_writeable(vml[c]) || | |
7567 | vml[c]->vdev_children != 0 || | |
7568 | vml[c]->vdev_state != VDEV_STATE_HEALTHY || | |
7569 | c != spa->spa_root_vdev->vdev_child[c]->vdev_id) { | |
2e528b49 | 7570 | error = SET_ERROR(EINVAL); |
428870ff BB |
7571 | break; |
7572 | } | |
7573 | ||
733b5722 RS |
7574 | if (vdev_dtl_required(vml[c]) || |
7575 | vdev_resilver_needed(vml[c], NULL, NULL)) { | |
2e528b49 | 7576 | error = SET_ERROR(EBUSY); |
428870ff BB |
7577 | break; |
7578 | } | |
7579 | ||
7580 | /* we need certain info from the top level */ | |
7581 | VERIFY(nvlist_add_uint64(child[c], ZPOOL_CONFIG_METASLAB_ARRAY, | |
7582 | vml[c]->vdev_top->vdev_ms_array) == 0); | |
7583 | VERIFY(nvlist_add_uint64(child[c], ZPOOL_CONFIG_METASLAB_SHIFT, | |
7584 | vml[c]->vdev_top->vdev_ms_shift) == 0); | |
7585 | VERIFY(nvlist_add_uint64(child[c], ZPOOL_CONFIG_ASIZE, | |
7586 | vml[c]->vdev_top->vdev_asize) == 0); | |
7587 | VERIFY(nvlist_add_uint64(child[c], ZPOOL_CONFIG_ASHIFT, | |
7588 | vml[c]->vdev_top->vdev_ashift) == 0); | |
e0ab3ab5 JS |
7589 | |
7590 | /* transfer per-vdev ZAPs */ | |
7591 | ASSERT3U(vml[c]->vdev_leaf_zap, !=, 0); | |
7592 | VERIFY0(nvlist_add_uint64(child[c], | |
7593 | ZPOOL_CONFIG_VDEV_LEAF_ZAP, vml[c]->vdev_leaf_zap)); | |
7594 | ||
7595 | ASSERT3U(vml[c]->vdev_top->vdev_top_zap, !=, 0); | |
7596 | VERIFY0(nvlist_add_uint64(child[c], | |
7597 | ZPOOL_CONFIG_VDEV_TOP_ZAP, | |
7598 | vml[c]->vdev_parent->vdev_top_zap)); | |
428870ff BB |
7599 | } |
7600 | ||
7601 | if (error != 0) { | |
7602 | kmem_free(vml, children * sizeof (vdev_t *)); | |
7603 | kmem_free(glist, children * sizeof (uint64_t)); | |
7604 | return (spa_vdev_exit(spa, NULL, txg, error)); | |
7605 | } | |
7606 | ||
7607 | /* stop writers from using the disks */ | |
7608 | for (c = 0; c < children; c++) { | |
7609 | if (vml[c] != NULL) | |
7610 | vml[c]->vdev_offline = B_TRUE; | |
7611 | } | |
7612 | vdev_reopen(spa->spa_root_vdev); | |
34dc7c2f BB |
7613 | |
7614 | /* | |
428870ff BB |
7615 | * Temporarily record the splitting vdevs in the spa config. This |
7616 | * will disappear once the config is regenerated. | |
34dc7c2f | 7617 | */ |
79c76d5b | 7618 | VERIFY(nvlist_alloc(&nvl, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
428870ff BB |
7619 | VERIFY(nvlist_add_uint64_array(nvl, ZPOOL_CONFIG_SPLIT_LIST, |
7620 | glist, children) == 0); | |
7621 | kmem_free(glist, children * sizeof (uint64_t)); | |
34dc7c2f | 7622 | |
428870ff BB |
7623 | mutex_enter(&spa->spa_props_lock); |
7624 | VERIFY(nvlist_add_nvlist(spa->spa_config, ZPOOL_CONFIG_SPLIT, | |
7625 | nvl) == 0); | |
7626 | mutex_exit(&spa->spa_props_lock); | |
7627 | spa->spa_config_splitting = nvl; | |
7628 | vdev_config_dirty(spa->spa_root_vdev); | |
7629 | ||
7630 | /* configure and create the new pool */ | |
7631 | VERIFY(nvlist_add_string(config, ZPOOL_CONFIG_POOL_NAME, newname) == 0); | |
7632 | VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_POOL_STATE, | |
7633 | exp ? POOL_STATE_EXPORTED : POOL_STATE_ACTIVE) == 0); | |
7634 | VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_VERSION, | |
7635 | spa_version(spa)) == 0); | |
7636 | VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_POOL_TXG, | |
7637 | spa->spa_config_txg) == 0); | |
7638 | VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_POOL_GUID, | |
7639 | spa_generate_guid(NULL)) == 0); | |
e0ab3ab5 | 7640 | VERIFY0(nvlist_add_boolean(config, ZPOOL_CONFIG_HAS_PER_VDEV_ZAPS)); |
428870ff BB |
7641 | (void) nvlist_lookup_string(props, |
7642 | zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot); | |
34dc7c2f | 7643 | |
428870ff BB |
7644 | /* add the new pool to the namespace */ |
7645 | newspa = spa_add(newname, config, altroot); | |
e0ab3ab5 | 7646 | newspa->spa_avz_action = AVZ_ACTION_REBUILD; |
428870ff BB |
7647 | newspa->spa_config_txg = spa->spa_config_txg; |
7648 | spa_set_log_state(newspa, SPA_LOG_CLEAR); | |
7649 | ||
7650 | /* release the spa config lock, retaining the namespace lock */ | |
7651 | spa_vdev_config_exit(spa, NULL, txg, 0, FTAG); | |
7652 | ||
7653 | if (zio_injection_enabled) | |
7654 | zio_handle_panic_injection(spa, FTAG, 1); | |
7655 | ||
7656 | spa_activate(newspa, spa_mode_global); | |
7657 | spa_async_suspend(newspa); | |
7658 | ||
c10d37dd | 7659 | /* |
1b939560 BB |
7660 | * Temporarily stop the initializing and TRIM activity. We set the |
7661 | * state to ACTIVE so that we know to resume initializing or TRIM | |
7662 | * once the split has completed. | |
c10d37dd | 7663 | */ |
1b939560 BB |
7664 | list_t vd_initialize_list; |
7665 | list_create(&vd_initialize_list, sizeof (vdev_t), | |
c10d37dd GW |
7666 | offsetof(vdev_t, vdev_initialize_node)); |
7667 | ||
1b939560 BB |
7668 | list_t vd_trim_list; |
7669 | list_create(&vd_trim_list, sizeof (vdev_t), | |
7670 | offsetof(vdev_t, vdev_trim_node)); | |
7671 | ||
619f0976 | 7672 | for (c = 0; c < children; c++) { |
1b664952 | 7673 | if (vml[c] != NULL && vml[c]->vdev_ops != &vdev_indirect_ops) { |
619f0976 | 7674 | mutex_enter(&vml[c]->vdev_initialize_lock); |
1b939560 BB |
7675 | vdev_initialize_stop(vml[c], |
7676 | VDEV_INITIALIZE_ACTIVE, &vd_initialize_list); | |
619f0976 | 7677 | mutex_exit(&vml[c]->vdev_initialize_lock); |
1b939560 BB |
7678 | |
7679 | mutex_enter(&vml[c]->vdev_trim_lock); | |
7680 | vdev_trim_stop(vml[c], VDEV_TRIM_ACTIVE, &vd_trim_list); | |
7681 | mutex_exit(&vml[c]->vdev_trim_lock); | |
619f0976 GW |
7682 | } |
7683 | } | |
1b939560 BB |
7684 | |
7685 | vdev_initialize_stop_wait(spa, &vd_initialize_list); | |
7686 | vdev_trim_stop_wait(spa, &vd_trim_list); | |
7687 | ||
7688 | list_destroy(&vd_initialize_list); | |
7689 | list_destroy(&vd_trim_list); | |
619f0976 | 7690 | |
6cb8e530 | 7691 | newspa->spa_config_source = SPA_CONFIG_SRC_SPLIT; |
8b27e08e | 7692 | newspa->spa_is_splitting = B_TRUE; |
6cb8e530 | 7693 | |
428870ff | 7694 | /* create the new pool from the disks of the original pool */ |
6cb8e530 | 7695 | error = spa_load(newspa, SPA_LOAD_IMPORT, SPA_IMPORT_ASSEMBLE); |
428870ff BB |
7696 | if (error) |
7697 | goto out; | |
7698 | ||
7699 | /* if that worked, generate a real config for the new pool */ | |
7700 | if (newspa->spa_root_vdev != NULL) { | |
7701 | VERIFY(nvlist_alloc(&newspa->spa_config_splitting, | |
79c76d5b | 7702 | NV_UNIQUE_NAME, KM_SLEEP) == 0); |
428870ff BB |
7703 | VERIFY(nvlist_add_uint64(newspa->spa_config_splitting, |
7704 | ZPOOL_CONFIG_SPLIT_GUID, spa_guid(spa)) == 0); | |
7705 | spa_config_set(newspa, spa_config_generate(newspa, NULL, -1ULL, | |
7706 | B_TRUE)); | |
9babb374 | 7707 | } |
34dc7c2f | 7708 | |
428870ff BB |
7709 | /* set the props */ |
7710 | if (props != NULL) { | |
7711 | spa_configfile_set(newspa, props, B_FALSE); | |
7712 | error = spa_prop_set(newspa, props); | |
7713 | if (error) | |
7714 | goto out; | |
7715 | } | |
34dc7c2f | 7716 | |
428870ff BB |
7717 | /* flush everything */ |
7718 | txg = spa_vdev_config_enter(newspa); | |
7719 | vdev_config_dirty(newspa->spa_root_vdev); | |
7720 | (void) spa_vdev_config_exit(newspa, NULL, txg, 0, FTAG); | |
34dc7c2f | 7721 | |
428870ff BB |
7722 | if (zio_injection_enabled) |
7723 | zio_handle_panic_injection(spa, FTAG, 2); | |
34dc7c2f | 7724 | |
428870ff | 7725 | spa_async_resume(newspa); |
34dc7c2f | 7726 | |
428870ff BB |
7727 | /* finally, update the original pool's config */ |
7728 | txg = spa_vdev_config_enter(spa); | |
7729 | tx = dmu_tx_create_dd(spa_get_dsl(spa)->dp_mos_dir); | |
7730 | error = dmu_tx_assign(tx, TXG_WAIT); | |
7731 | if (error != 0) | |
7732 | dmu_tx_abort(tx); | |
7733 | for (c = 0; c < children; c++) { | |
1b664952 | 7734 | if (vml[c] != NULL && vml[c]->vdev_ops != &vdev_indirect_ops) { |
234234ca RS |
7735 | vdev_t *tvd = vml[c]->vdev_top; |
7736 | ||
7737 | /* | |
7738 | * Need to be sure the detachable VDEV is not | |
7739 | * on any *other* txg's DTL list to prevent it | |
7740 | * from being accessed after it's freed. | |
7741 | */ | |
7742 | for (int t = 0; t < TXG_SIZE; t++) { | |
7743 | (void) txg_list_remove_this( | |
7744 | &tvd->vdev_dtl_list, vml[c], t); | |
7745 | } | |
7746 | ||
428870ff BB |
7747 | vdev_split(vml[c]); |
7748 | if (error == 0) | |
6f1ffb06 MA |
7749 | spa_history_log_internal(spa, "detach", tx, |
7750 | "vdev=%s", vml[c]->vdev_path); | |
e0ab3ab5 | 7751 | |
428870ff | 7752 | vdev_free(vml[c]); |
34dc7c2f | 7753 | } |
34dc7c2f | 7754 | } |
e0ab3ab5 | 7755 | spa->spa_avz_action = AVZ_ACTION_REBUILD; |
428870ff BB |
7756 | vdev_config_dirty(spa->spa_root_vdev); |
7757 | spa->spa_config_splitting = NULL; | |
7758 | nvlist_free(nvl); | |
7759 | if (error == 0) | |
7760 | dmu_tx_commit(tx); | |
7761 | (void) spa_vdev_exit(spa, NULL, txg, 0); | |
7762 | ||
7763 | if (zio_injection_enabled) | |
7764 | zio_handle_panic_injection(spa, FTAG, 3); | |
7765 | ||
7766 | /* split is complete; log a history record */ | |
6f1ffb06 MA |
7767 | spa_history_log_internal(newspa, "split", NULL, |
7768 | "from pool %s", spa_name(spa)); | |
428870ff | 7769 | |
8b27e08e | 7770 | newspa->spa_is_splitting = B_FALSE; |
428870ff BB |
7771 | kmem_free(vml, children * sizeof (vdev_t *)); |
7772 | ||
7773 | /* if we're not going to mount the filesystems in userland, export */ | |
7774 | if (exp) | |
7775 | error = spa_export_common(newname, POOL_STATE_EXPORTED, NULL, | |
7776 | B_FALSE, B_FALSE); | |
7777 | ||
7778 | return (error); | |
7779 | ||
7780 | out: | |
7781 | spa_unload(newspa); | |
7782 | spa_deactivate(newspa); | |
7783 | spa_remove(newspa); | |
7784 | ||
7785 | txg = spa_vdev_config_enter(spa); | |
7786 | ||
7787 | /* re-online all offlined disks */ | |
7788 | for (c = 0; c < children; c++) { | |
7789 | if (vml[c] != NULL) | |
7790 | vml[c]->vdev_offline = B_FALSE; | |
7791 | } | |
619f0976 | 7792 | |
1b939560 | 7793 | /* restart initializing or trimming disks as necessary */ |
619f0976 | 7794 | spa_async_request(spa, SPA_ASYNC_INITIALIZE_RESTART); |
1b939560 BB |
7795 | spa_async_request(spa, SPA_ASYNC_TRIM_RESTART); |
7796 | spa_async_request(spa, SPA_ASYNC_AUTOTRIM_RESTART); | |
619f0976 | 7797 | |
428870ff BB |
7798 | vdev_reopen(spa->spa_root_vdev); |
7799 | ||
7800 | nvlist_free(spa->spa_config_splitting); | |
7801 | spa->spa_config_splitting = NULL; | |
7802 | (void) spa_vdev_exit(spa, NULL, txg, error); | |
34dc7c2f | 7803 | |
428870ff | 7804 | kmem_free(vml, children * sizeof (vdev_t *)); |
34dc7c2f BB |
7805 | return (error); |
7806 | } | |
7807 | ||
34dc7c2f BB |
7808 | /* |
7809 | * Find any device that's done replacing, or a vdev marked 'unspare' that's | |
d3cc8b15 | 7810 | * currently spared, so we can detach it. |
34dc7c2f BB |
7811 | */ |
7812 | static vdev_t * | |
7813 | spa_vdev_resilver_done_hunt(vdev_t *vd) | |
7814 | { | |
7815 | vdev_t *newvd, *oldvd; | |
34dc7c2f | 7816 | |
1c27024e | 7817 | for (int c = 0; c < vd->vdev_children; c++) { |
34dc7c2f BB |
7818 | oldvd = spa_vdev_resilver_done_hunt(vd->vdev_child[c]); |
7819 | if (oldvd != NULL) | |
7820 | return (oldvd); | |
7821 | } | |
7822 | ||
7823 | /* | |
572e2857 BB |
7824 | * Check for a completed replacement. We always consider the first |
7825 | * vdev in the list to be the oldest vdev, and the last one to be | |
7826 | * the newest (see spa_vdev_attach() for how that works). In | |
7827 | * the case where the newest vdev is faulted, we will not automatically | |
7828 | * remove it after a resilver completes. This is OK as it will require | |
7829 | * user intervention to determine which disk the admin wishes to keep. | |
34dc7c2f | 7830 | */ |
572e2857 BB |
7831 | if (vd->vdev_ops == &vdev_replacing_ops) { |
7832 | ASSERT(vd->vdev_children > 1); | |
7833 | ||
7834 | newvd = vd->vdev_child[vd->vdev_children - 1]; | |
34dc7c2f | 7835 | oldvd = vd->vdev_child[0]; |
34dc7c2f | 7836 | |
fb5f0bc8 | 7837 | if (vdev_dtl_empty(newvd, DTL_MISSING) && |
428870ff | 7838 | vdev_dtl_empty(newvd, DTL_OUTAGE) && |
fb5f0bc8 | 7839 | !vdev_dtl_required(oldvd)) |
34dc7c2f | 7840 | return (oldvd); |
34dc7c2f BB |
7841 | } |
7842 | ||
7843 | /* | |
7844 | * Check for a completed resilver with the 'unspare' flag set. | |
f65fbee1 | 7845 | * Also potentially update faulted state. |
34dc7c2f | 7846 | */ |
572e2857 BB |
7847 | if (vd->vdev_ops == &vdev_spare_ops) { |
7848 | vdev_t *first = vd->vdev_child[0]; | |
7849 | vdev_t *last = vd->vdev_child[vd->vdev_children - 1]; | |
7850 | ||
7851 | if (last->vdev_unspare) { | |
7852 | oldvd = first; | |
7853 | newvd = last; | |
7854 | } else if (first->vdev_unspare) { | |
7855 | oldvd = last; | |
7856 | newvd = first; | |
7857 | } else { | |
7858 | oldvd = NULL; | |
7859 | } | |
34dc7c2f | 7860 | |
572e2857 | 7861 | if (oldvd != NULL && |
fb5f0bc8 | 7862 | vdev_dtl_empty(newvd, DTL_MISSING) && |
428870ff | 7863 | vdev_dtl_empty(newvd, DTL_OUTAGE) && |
572e2857 | 7864 | !vdev_dtl_required(oldvd)) |
34dc7c2f | 7865 | return (oldvd); |
572e2857 | 7866 | |
f65fbee1 JJ |
7867 | vdev_propagate_state(vd); |
7868 | ||
572e2857 BB |
7869 | /* |
7870 | * If there are more than two spares attached to a disk, | |
7871 | * and those spares are not required, then we want to | |
7872 | * attempt to free them up now so that they can be used | |
7873 | * by other pools. Once we're back down to a single | |
7874 | * disk+spare, we stop removing them. | |
7875 | */ | |
7876 | if (vd->vdev_children > 2) { | |
7877 | newvd = vd->vdev_child[1]; | |
7878 | ||
7879 | if (newvd->vdev_isspare && last->vdev_isspare && | |
7880 | vdev_dtl_empty(last, DTL_MISSING) && | |
7881 | vdev_dtl_empty(last, DTL_OUTAGE) && | |
7882 | !vdev_dtl_required(newvd)) | |
7883 | return (newvd); | |
34dc7c2f | 7884 | } |
34dc7c2f BB |
7885 | } |
7886 | ||
7887 | return (NULL); | |
7888 | } | |
7889 | ||
7890 | static void | |
7891 | spa_vdev_resilver_done(spa_t *spa) | |
7892 | { | |
fb5f0bc8 BB |
7893 | vdev_t *vd, *pvd, *ppvd; |
7894 | uint64_t guid, sguid, pguid, ppguid; | |
34dc7c2f | 7895 | |
fb5f0bc8 | 7896 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f BB |
7897 | |
7898 | while ((vd = spa_vdev_resilver_done_hunt(spa->spa_root_vdev)) != NULL) { | |
fb5f0bc8 BB |
7899 | pvd = vd->vdev_parent; |
7900 | ppvd = pvd->vdev_parent; | |
34dc7c2f | 7901 | guid = vd->vdev_guid; |
fb5f0bc8 BB |
7902 | pguid = pvd->vdev_guid; |
7903 | ppguid = ppvd->vdev_guid; | |
7904 | sguid = 0; | |
34dc7c2f BB |
7905 | /* |
7906 | * If we have just finished replacing a hot spared device, then | |
7907 | * we need to detach the parent's first child (the original hot | |
7908 | * spare) as well. | |
7909 | */ | |
572e2857 BB |
7910 | if (ppvd->vdev_ops == &vdev_spare_ops && pvd->vdev_id == 0 && |
7911 | ppvd->vdev_children == 2) { | |
34dc7c2f | 7912 | ASSERT(pvd->vdev_ops == &vdev_replacing_ops); |
fb5f0bc8 | 7913 | sguid = ppvd->vdev_child[1]->vdev_guid; |
34dc7c2f | 7914 | } |
5d1f7fb6 GW |
7915 | ASSERT(vd->vdev_resilver_txg == 0 || !vdev_dtl_required(vd)); |
7916 | ||
fb5f0bc8 BB |
7917 | spa_config_exit(spa, SCL_ALL, FTAG); |
7918 | if (spa_vdev_detach(spa, guid, pguid, B_TRUE) != 0) | |
34dc7c2f | 7919 | return; |
fb5f0bc8 | 7920 | if (sguid && spa_vdev_detach(spa, sguid, ppguid, B_TRUE) != 0) |
34dc7c2f | 7921 | return; |
fb5f0bc8 | 7922 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f BB |
7923 | } |
7924 | ||
fb5f0bc8 | 7925 | spa_config_exit(spa, SCL_ALL, FTAG); |
9a49d3f3 BB |
7926 | |
7927 | /* | |
7928 | * If a detach was not performed above replace waiters will not have | |
7929 | * been notified. In which case we must do so now. | |
7930 | */ | |
7931 | spa_notify_waiters(spa); | |
34dc7c2f BB |
7932 | } |
7933 | ||
7934 | /* | |
428870ff | 7935 | * Update the stored path or FRU for this vdev. |
34dc7c2f | 7936 | */ |
65c7cc49 | 7937 | static int |
9babb374 BB |
7938 | spa_vdev_set_common(spa_t *spa, uint64_t guid, const char *value, |
7939 | boolean_t ispath) | |
34dc7c2f | 7940 | { |
b128c09f | 7941 | vdev_t *vd; |
428870ff | 7942 | boolean_t sync = B_FALSE; |
34dc7c2f | 7943 | |
572e2857 BB |
7944 | ASSERT(spa_writeable(spa)); |
7945 | ||
428870ff | 7946 | spa_vdev_state_enter(spa, SCL_ALL); |
34dc7c2f | 7947 | |
9babb374 | 7948 | if ((vd = spa_lookup_by_guid(spa, guid, B_TRUE)) == NULL) |
428870ff | 7949 | return (spa_vdev_state_exit(spa, NULL, ENOENT)); |
34dc7c2f BB |
7950 | |
7951 | if (!vd->vdev_ops->vdev_op_leaf) | |
428870ff | 7952 | return (spa_vdev_state_exit(spa, NULL, ENOTSUP)); |
34dc7c2f | 7953 | |
9babb374 | 7954 | if (ispath) { |
428870ff BB |
7955 | if (strcmp(value, vd->vdev_path) != 0) { |
7956 | spa_strfree(vd->vdev_path); | |
7957 | vd->vdev_path = spa_strdup(value); | |
7958 | sync = B_TRUE; | |
7959 | } | |
9babb374 | 7960 | } else { |
428870ff BB |
7961 | if (vd->vdev_fru == NULL) { |
7962 | vd->vdev_fru = spa_strdup(value); | |
7963 | sync = B_TRUE; | |
7964 | } else if (strcmp(value, vd->vdev_fru) != 0) { | |
9babb374 | 7965 | spa_strfree(vd->vdev_fru); |
428870ff BB |
7966 | vd->vdev_fru = spa_strdup(value); |
7967 | sync = B_TRUE; | |
7968 | } | |
9babb374 | 7969 | } |
34dc7c2f | 7970 | |
428870ff | 7971 | return (spa_vdev_state_exit(spa, sync ? vd : NULL, 0)); |
34dc7c2f BB |
7972 | } |
7973 | ||
9babb374 BB |
7974 | int |
7975 | spa_vdev_setpath(spa_t *spa, uint64_t guid, const char *newpath) | |
7976 | { | |
7977 | return (spa_vdev_set_common(spa, guid, newpath, B_TRUE)); | |
7978 | } | |
7979 | ||
7980 | int | |
7981 | spa_vdev_setfru(spa_t *spa, uint64_t guid, const char *newfru) | |
7982 | { | |
7983 | return (spa_vdev_set_common(spa, guid, newfru, B_FALSE)); | |
7984 | } | |
7985 | ||
34dc7c2f BB |
7986 | /* |
7987 | * ========================================================================== | |
428870ff | 7988 | * SPA Scanning |
34dc7c2f BB |
7989 | * ========================================================================== |
7990 | */ | |
0ea05c64 AP |
7991 | int |
7992 | spa_scrub_pause_resume(spa_t *spa, pool_scrub_cmd_t cmd) | |
7993 | { | |
7994 | ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == 0); | |
7995 | ||
7996 | if (dsl_scan_resilvering(spa->spa_dsl_pool)) | |
7997 | return (SET_ERROR(EBUSY)); | |
7998 | ||
7999 | return (dsl_scrub_set_pause_resume(spa->spa_dsl_pool, cmd)); | |
8000 | } | |
34dc7c2f | 8001 | |
34dc7c2f | 8002 | int |
428870ff BB |
8003 | spa_scan_stop(spa_t *spa) |
8004 | { | |
8005 | ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == 0); | |
8006 | if (dsl_scan_resilvering(spa->spa_dsl_pool)) | |
2e528b49 | 8007 | return (SET_ERROR(EBUSY)); |
428870ff BB |
8008 | return (dsl_scan_cancel(spa->spa_dsl_pool)); |
8009 | } | |
8010 | ||
8011 | int | |
8012 | spa_scan(spa_t *spa, pool_scan_func_t func) | |
34dc7c2f | 8013 | { |
b128c09f | 8014 | ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == 0); |
34dc7c2f | 8015 | |
428870ff | 8016 | if (func >= POOL_SCAN_FUNCS || func == POOL_SCAN_NONE) |
2e528b49 | 8017 | return (SET_ERROR(ENOTSUP)); |
34dc7c2f | 8018 | |
fa241660 TC |
8019 | if (func == POOL_SCAN_RESILVER && |
8020 | !spa_feature_is_enabled(spa, SPA_FEATURE_RESILVER_DEFER)) | |
8021 | return (SET_ERROR(ENOTSUP)); | |
8022 | ||
34dc7c2f | 8023 | /* |
b128c09f BB |
8024 | * If a resilver was requested, but there is no DTL on a |
8025 | * writeable leaf device, we have nothing to do. | |
34dc7c2f | 8026 | */ |
428870ff | 8027 | if (func == POOL_SCAN_RESILVER && |
b128c09f BB |
8028 | !vdev_resilver_needed(spa->spa_root_vdev, NULL, NULL)) { |
8029 | spa_async_request(spa, SPA_ASYNC_RESILVER_DONE); | |
34dc7c2f BB |
8030 | return (0); |
8031 | } | |
8032 | ||
428870ff | 8033 | return (dsl_scan(spa->spa_dsl_pool, func)); |
34dc7c2f BB |
8034 | } |
8035 | ||
8036 | /* | |
8037 | * ========================================================================== | |
8038 | * SPA async task processing | |
8039 | * ========================================================================== | |
8040 | */ | |
8041 | ||
8042 | static void | |
8043 | spa_async_remove(spa_t *spa, vdev_t *vd) | |
8044 | { | |
b128c09f | 8045 | if (vd->vdev_remove_wanted) { |
428870ff BB |
8046 | vd->vdev_remove_wanted = B_FALSE; |
8047 | vd->vdev_delayed_close = B_FALSE; | |
b128c09f | 8048 | vdev_set_state(vd, B_FALSE, VDEV_STATE_REMOVED, VDEV_AUX_NONE); |
428870ff BB |
8049 | |
8050 | /* | |
8051 | * We want to clear the stats, but we don't want to do a full | |
8052 | * vdev_clear() as that will cause us to throw away | |
8053 | * degraded/faulted state as well as attempt to reopen the | |
8054 | * device, all of which is a waste. | |
8055 | */ | |
8056 | vd->vdev_stat.vs_read_errors = 0; | |
8057 | vd->vdev_stat.vs_write_errors = 0; | |
8058 | vd->vdev_stat.vs_checksum_errors = 0; | |
8059 | ||
b128c09f | 8060 | vdev_state_dirty(vd->vdev_top); |
0aacde2e RM |
8061 | |
8062 | /* Tell userspace that the vdev is gone. */ | |
8063 | zfs_post_remove(spa, vd); | |
b128c09f | 8064 | } |
34dc7c2f | 8065 | |
1c27024e | 8066 | for (int c = 0; c < vd->vdev_children; c++) |
b128c09f BB |
8067 | spa_async_remove(spa, vd->vdev_child[c]); |
8068 | } | |
8069 | ||
8070 | static void | |
8071 | spa_async_probe(spa_t *spa, vdev_t *vd) | |
8072 | { | |
8073 | if (vd->vdev_probe_wanted) { | |
428870ff | 8074 | vd->vdev_probe_wanted = B_FALSE; |
b128c09f | 8075 | vdev_reopen(vd); /* vdev_open() does the actual probe */ |
34dc7c2f | 8076 | } |
b128c09f | 8077 | |
1c27024e | 8078 | for (int c = 0; c < vd->vdev_children; c++) |
b128c09f | 8079 | spa_async_probe(spa, vd->vdev_child[c]); |
34dc7c2f BB |
8080 | } |
8081 | ||
9babb374 BB |
8082 | static void |
8083 | spa_async_autoexpand(spa_t *spa, vdev_t *vd) | |
8084 | { | |
9babb374 BB |
8085 | if (!spa->spa_autoexpand) |
8086 | return; | |
8087 | ||
1c27024e | 8088 | for (int c = 0; c < vd->vdev_children; c++) { |
9babb374 BB |
8089 | vdev_t *cvd = vd->vdev_child[c]; |
8090 | spa_async_autoexpand(spa, cvd); | |
8091 | } | |
8092 | ||
8093 | if (!vd->vdev_ops->vdev_op_leaf || vd->vdev_physpath == NULL) | |
8094 | return; | |
8095 | ||
12fa0466 | 8096 | spa_event_notify(vd->vdev_spa, vd, NULL, ESC_ZFS_VDEV_AUTOEXPAND); |
9babb374 BB |
8097 | } |
8098 | ||
34dc7c2f | 8099 | static void |
c25b8f99 | 8100 | spa_async_thread(void *arg) |
34dc7c2f | 8101 | { |
c25b8f99 | 8102 | spa_t *spa = (spa_t *)arg; |
80a91e74 | 8103 | dsl_pool_t *dp = spa->spa_dsl_pool; |
867959b5 | 8104 | int tasks; |
34dc7c2f BB |
8105 | |
8106 | ASSERT(spa->spa_sync_on); | |
8107 | ||
8108 | mutex_enter(&spa->spa_async_lock); | |
8109 | tasks = spa->spa_async_tasks; | |
8110 | spa->spa_async_tasks = 0; | |
8111 | mutex_exit(&spa->spa_async_lock); | |
8112 | ||
8113 | /* | |
8114 | * See if the config needs to be updated. | |
8115 | */ | |
8116 | if (tasks & SPA_ASYNC_CONFIG_UPDATE) { | |
428870ff | 8117 | uint64_t old_space, new_space; |
9babb374 | 8118 | |
34dc7c2f | 8119 | mutex_enter(&spa_namespace_lock); |
428870ff | 8120 | old_space = metaslab_class_get_space(spa_normal_class(spa)); |
cc99f275 DB |
8121 | old_space += metaslab_class_get_space(spa_special_class(spa)); |
8122 | old_space += metaslab_class_get_space(spa_dedup_class(spa)); | |
aa755b35 MA |
8123 | old_space += metaslab_class_get_space( |
8124 | spa_embedded_log_class(spa)); | |
cc99f275 | 8125 | |
34dc7c2f | 8126 | spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); |
cc99f275 | 8127 | |
428870ff | 8128 | new_space = metaslab_class_get_space(spa_normal_class(spa)); |
cc99f275 DB |
8129 | new_space += metaslab_class_get_space(spa_special_class(spa)); |
8130 | new_space += metaslab_class_get_space(spa_dedup_class(spa)); | |
aa755b35 MA |
8131 | new_space += metaslab_class_get_space( |
8132 | spa_embedded_log_class(spa)); | |
34dc7c2f | 8133 | mutex_exit(&spa_namespace_lock); |
9babb374 BB |
8134 | |
8135 | /* | |
8136 | * If the pool grew as a result of the config update, | |
8137 | * then log an internal history event. | |
8138 | */ | |
428870ff | 8139 | if (new_space != old_space) { |
6f1ffb06 | 8140 | spa_history_log_internal(spa, "vdev online", NULL, |
45d1cae3 | 8141 | "pool '%s' size: %llu(+%llu)", |
74756182 MM |
8142 | spa_name(spa), (u_longlong_t)new_space, |
8143 | (u_longlong_t)(new_space - old_space)); | |
9babb374 | 8144 | } |
34dc7c2f BB |
8145 | } |
8146 | ||
8147 | /* | |
8148 | * See if any devices need to be marked REMOVED. | |
34dc7c2f | 8149 | */ |
b128c09f | 8150 | if (tasks & SPA_ASYNC_REMOVE) { |
428870ff | 8151 | spa_vdev_state_enter(spa, SCL_NONE); |
34dc7c2f | 8152 | spa_async_remove(spa, spa->spa_root_vdev); |
867959b5 | 8153 | for (int i = 0; i < spa->spa_l2cache.sav_count; i++) |
b128c09f | 8154 | spa_async_remove(spa, spa->spa_l2cache.sav_vdevs[i]); |
867959b5 | 8155 | for (int i = 0; i < spa->spa_spares.sav_count; i++) |
b128c09f BB |
8156 | spa_async_remove(spa, spa->spa_spares.sav_vdevs[i]); |
8157 | (void) spa_vdev_state_exit(spa, NULL, 0); | |
34dc7c2f BB |
8158 | } |
8159 | ||
9babb374 BB |
8160 | if ((tasks & SPA_ASYNC_AUTOEXPAND) && !spa_suspended(spa)) { |
8161 | spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); | |
8162 | spa_async_autoexpand(spa, spa->spa_root_vdev); | |
8163 | spa_config_exit(spa, SCL_CONFIG, FTAG); | |
8164 | } | |
8165 | ||
34dc7c2f | 8166 | /* |
b128c09f | 8167 | * See if any devices need to be probed. |
34dc7c2f | 8168 | */ |
b128c09f | 8169 | if (tasks & SPA_ASYNC_PROBE) { |
428870ff | 8170 | spa_vdev_state_enter(spa, SCL_NONE); |
b128c09f BB |
8171 | spa_async_probe(spa, spa->spa_root_vdev); |
8172 | (void) spa_vdev_state_exit(spa, NULL, 0); | |
8173 | } | |
34dc7c2f BB |
8174 | |
8175 | /* | |
b128c09f | 8176 | * If any devices are done replacing, detach them. |
34dc7c2f | 8177 | */ |
b2255edc BB |
8178 | if (tasks & SPA_ASYNC_RESILVER_DONE || |
8179 | tasks & SPA_ASYNC_REBUILD_DONE) { | |
b128c09f | 8180 | spa_vdev_resilver_done(spa); |
9a49d3f3 BB |
8181 | } |
8182 | ||
34dc7c2f BB |
8183 | /* |
8184 | * Kick off a resilver. | |
8185 | */ | |
80a91e74 | 8186 | if (tasks & SPA_ASYNC_RESILVER && |
9a49d3f3 | 8187 | !vdev_rebuild_active(spa->spa_root_vdev) && |
80a91e74 TC |
8188 | (!dsl_scan_resilvering(dp) || |
8189 | !spa_feature_is_enabled(dp->dp_spa, SPA_FEATURE_RESILVER_DEFER))) | |
3c819a2c | 8190 | dsl_scan_restart_resilver(dp, 0); |
34dc7c2f | 8191 | |
619f0976 GW |
8192 | if (tasks & SPA_ASYNC_INITIALIZE_RESTART) { |
8193 | mutex_enter(&spa_namespace_lock); | |
8194 | spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); | |
8195 | vdev_initialize_restart(spa->spa_root_vdev); | |
8196 | spa_config_exit(spa, SCL_CONFIG, FTAG); | |
8197 | mutex_exit(&spa_namespace_lock); | |
8198 | } | |
8199 | ||
1b939560 BB |
8200 | if (tasks & SPA_ASYNC_TRIM_RESTART) { |
8201 | mutex_enter(&spa_namespace_lock); | |
8202 | spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); | |
8203 | vdev_trim_restart(spa->spa_root_vdev); | |
8204 | spa_config_exit(spa, SCL_CONFIG, FTAG); | |
8205 | mutex_exit(&spa_namespace_lock); | |
8206 | } | |
8207 | ||
8208 | if (tasks & SPA_ASYNC_AUTOTRIM_RESTART) { | |
8209 | mutex_enter(&spa_namespace_lock); | |
8210 | spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); | |
8211 | vdev_autotrim_restart(spa); | |
8212 | spa_config_exit(spa, SCL_CONFIG, FTAG); | |
8213 | mutex_exit(&spa_namespace_lock); | |
8214 | } | |
8215 | ||
b7654bd7 GA |
8216 | /* |
8217 | * Kick off L2 cache whole device TRIM. | |
8218 | */ | |
8219 | if (tasks & SPA_ASYNC_L2CACHE_TRIM) { | |
8220 | mutex_enter(&spa_namespace_lock); | |
8221 | spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); | |
8222 | vdev_trim_l2arc(spa); | |
8223 | spa_config_exit(spa, SCL_CONFIG, FTAG); | |
8224 | mutex_exit(&spa_namespace_lock); | |
8225 | } | |
8226 | ||
77f6826b GA |
8227 | /* |
8228 | * Kick off L2 cache rebuilding. | |
8229 | */ | |
8230 | if (tasks & SPA_ASYNC_L2CACHE_REBUILD) { | |
8231 | mutex_enter(&spa_namespace_lock); | |
8232 | spa_config_enter(spa, SCL_L2ARC, FTAG, RW_READER); | |
8233 | l2arc_spa_rebuild_start(spa); | |
8234 | spa_config_exit(spa, SCL_L2ARC, FTAG); | |
8235 | mutex_exit(&spa_namespace_lock); | |
8236 | } | |
8237 | ||
34dc7c2f BB |
8238 | /* |
8239 | * Let the world know that we're done. | |
8240 | */ | |
8241 | mutex_enter(&spa->spa_async_lock); | |
8242 | spa->spa_async_thread = NULL; | |
8243 | cv_broadcast(&spa->spa_async_cv); | |
8244 | mutex_exit(&spa->spa_async_lock); | |
8245 | thread_exit(); | |
8246 | } | |
8247 | ||
8248 | void | |
8249 | spa_async_suspend(spa_t *spa) | |
8250 | { | |
8251 | mutex_enter(&spa->spa_async_lock); | |
8252 | spa->spa_async_suspended++; | |
9d5b5245 | 8253 | while (spa->spa_async_thread != NULL) |
34dc7c2f BB |
8254 | cv_wait(&spa->spa_async_cv, &spa->spa_async_lock); |
8255 | mutex_exit(&spa->spa_async_lock); | |
a1d477c2 MA |
8256 | |
8257 | spa_vdev_remove_suspend(spa); | |
9d5b5245 SD |
8258 | |
8259 | zthr_t *condense_thread = spa->spa_condense_zthr; | |
61c3391a SD |
8260 | if (condense_thread != NULL) |
8261 | zthr_cancel(condense_thread); | |
d2734cce SD |
8262 | |
8263 | zthr_t *discard_thread = spa->spa_checkpoint_discard_zthr; | |
61c3391a SD |
8264 | if (discard_thread != NULL) |
8265 | zthr_cancel(discard_thread); | |
37f03da8 SH |
8266 | |
8267 | zthr_t *ll_delete_thread = spa->spa_livelist_delete_zthr; | |
8268 | if (ll_delete_thread != NULL) | |
8269 | zthr_cancel(ll_delete_thread); | |
8270 | ||
8271 | zthr_t *ll_condense_thread = spa->spa_livelist_condense_zthr; | |
8272 | if (ll_condense_thread != NULL) | |
8273 | zthr_cancel(ll_condense_thread); | |
34dc7c2f BB |
8274 | } |
8275 | ||
8276 | void | |
8277 | spa_async_resume(spa_t *spa) | |
8278 | { | |
8279 | mutex_enter(&spa->spa_async_lock); | |
8280 | ASSERT(spa->spa_async_suspended != 0); | |
8281 | spa->spa_async_suspended--; | |
8282 | mutex_exit(&spa->spa_async_lock); | |
a1d477c2 | 8283 | spa_restart_removal(spa); |
9d5b5245 SD |
8284 | |
8285 | zthr_t *condense_thread = spa->spa_condense_zthr; | |
61c3391a | 8286 | if (condense_thread != NULL) |
9d5b5245 | 8287 | zthr_resume(condense_thread); |
d2734cce SD |
8288 | |
8289 | zthr_t *discard_thread = spa->spa_checkpoint_discard_zthr; | |
61c3391a | 8290 | if (discard_thread != NULL) |
d2734cce | 8291 | zthr_resume(discard_thread); |
37f03da8 SH |
8292 | |
8293 | zthr_t *ll_delete_thread = spa->spa_livelist_delete_zthr; | |
8294 | if (ll_delete_thread != NULL) | |
8295 | zthr_resume(ll_delete_thread); | |
8296 | ||
8297 | zthr_t *ll_condense_thread = spa->spa_livelist_condense_zthr; | |
8298 | if (ll_condense_thread != NULL) | |
8299 | zthr_resume(ll_condense_thread); | |
34dc7c2f BB |
8300 | } |
8301 | ||
e6cfd633 WA |
8302 | static boolean_t |
8303 | spa_async_tasks_pending(spa_t *spa) | |
8304 | { | |
8305 | uint_t non_config_tasks; | |
8306 | uint_t config_task; | |
8307 | boolean_t config_task_suspended; | |
8308 | ||
8309 | non_config_tasks = spa->spa_async_tasks & ~SPA_ASYNC_CONFIG_UPDATE; | |
8310 | config_task = spa->spa_async_tasks & SPA_ASYNC_CONFIG_UPDATE; | |
8311 | if (spa->spa_ccw_fail_time == 0) { | |
8312 | config_task_suspended = B_FALSE; | |
8313 | } else { | |
8314 | config_task_suspended = | |
8315 | (gethrtime() - spa->spa_ccw_fail_time) < | |
05852b34 | 8316 | ((hrtime_t)zfs_ccw_retry_interval * NANOSEC); |
e6cfd633 WA |
8317 | } |
8318 | ||
8319 | return (non_config_tasks || (config_task && !config_task_suspended)); | |
8320 | } | |
8321 | ||
34dc7c2f BB |
8322 | static void |
8323 | spa_async_dispatch(spa_t *spa) | |
8324 | { | |
8325 | mutex_enter(&spa->spa_async_lock); | |
e6cfd633 WA |
8326 | if (spa_async_tasks_pending(spa) && |
8327 | !spa->spa_async_suspended && | |
da92d5cb | 8328 | spa->spa_async_thread == NULL) |
34dc7c2f BB |
8329 | spa->spa_async_thread = thread_create(NULL, 0, |
8330 | spa_async_thread, spa, 0, &p0, TS_RUN, maxclsyspri); | |
8331 | mutex_exit(&spa->spa_async_lock); | |
8332 | } | |
8333 | ||
8334 | void | |
8335 | spa_async_request(spa_t *spa, int task) | |
8336 | { | |
428870ff | 8337 | zfs_dbgmsg("spa=%s async request task=%u", spa->spa_name, task); |
34dc7c2f BB |
8338 | mutex_enter(&spa->spa_async_lock); |
8339 | spa->spa_async_tasks |= task; | |
8340 | mutex_exit(&spa->spa_async_lock); | |
8341 | } | |
8342 | ||
3c819a2c JP |
8343 | int |
8344 | spa_async_tasks(spa_t *spa) | |
8345 | { | |
8346 | return (spa->spa_async_tasks); | |
8347 | } | |
8348 | ||
34dc7c2f BB |
8349 | /* |
8350 | * ========================================================================== | |
8351 | * SPA syncing routines | |
8352 | * ========================================================================== | |
8353 | */ | |
8354 | ||
37f03da8 | 8355 | |
428870ff | 8356 | static int |
37f03da8 SH |
8357 | bpobj_enqueue_cb(void *arg, const blkptr_t *bp, boolean_t bp_freed, |
8358 | dmu_tx_t *tx) | |
34dc7c2f | 8359 | { |
428870ff | 8360 | bpobj_t *bpo = arg; |
37f03da8 | 8361 | bpobj_enqueue(bpo, bp, bp_freed, tx); |
428870ff BB |
8362 | return (0); |
8363 | } | |
34dc7c2f | 8364 | |
37f03da8 SH |
8365 | int |
8366 | bpobj_enqueue_alloc_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) | |
8367 | { | |
8368 | return (bpobj_enqueue_cb(arg, bp, B_FALSE, tx)); | |
8369 | } | |
8370 | ||
8371 | int | |
8372 | bpobj_enqueue_free_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) | |
8373 | { | |
8374 | return (bpobj_enqueue_cb(arg, bp, B_TRUE, tx)); | |
8375 | } | |
8376 | ||
428870ff BB |
8377 | static int |
8378 | spa_free_sync_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) | |
8379 | { | |
9cdf7b1f | 8380 | zio_t *pio = arg; |
34dc7c2f | 8381 | |
9cdf7b1f MA |
8382 | zio_nowait(zio_free_sync(pio, pio->io_spa, dmu_tx_get_txg(tx), bp, |
8383 | pio->io_flags)); | |
428870ff | 8384 | return (0); |
34dc7c2f BB |
8385 | } |
8386 | ||
37f03da8 SH |
8387 | static int |
8388 | bpobj_spa_free_sync_cb(void *arg, const blkptr_t *bp, boolean_t bp_freed, | |
8389 | dmu_tx_t *tx) | |
8390 | { | |
8391 | ASSERT(!bp_freed); | |
8392 | return (spa_free_sync_cb(arg, bp, tx)); | |
8393 | } | |
8394 | ||
e8b96c60 MA |
8395 | /* |
8396 | * Note: this simple function is not inlined to make it easier to dtrace the | |
8397 | * amount of time spent syncing frees. | |
8398 | */ | |
8399 | static void | |
8400 | spa_sync_frees(spa_t *spa, bplist_t *bpl, dmu_tx_t *tx) | |
8401 | { | |
8402 | zio_t *zio = zio_root(spa, NULL, NULL, 0); | |
8403 | bplist_iterate(bpl, spa_free_sync_cb, zio, tx); | |
8404 | VERIFY(zio_wait(zio) == 0); | |
8405 | } | |
8406 | ||
8407 | /* | |
8408 | * Note: this simple function is not inlined to make it easier to dtrace the | |
8409 | * amount of time spent syncing deferred frees. | |
8410 | */ | |
8411 | static void | |
8412 | spa_sync_deferred_frees(spa_t *spa, dmu_tx_t *tx) | |
8413 | { | |
8dc2197b SD |
8414 | if (spa_sync_pass(spa) != 1) |
8415 | return; | |
8416 | ||
93e28d66 SD |
8417 | /* |
8418 | * Note: | |
8419 | * If the log space map feature is active, we stop deferring | |
8420 | * frees to the next TXG and therefore running this function | |
8421 | * would be considered a no-op as spa_deferred_bpobj should | |
8422 | * not have any entries. | |
8423 | * | |
8424 | * That said we run this function anyway (instead of returning | |
8425 | * immediately) for the edge-case scenario where we just | |
8426 | * activated the log space map feature in this TXG but we have | |
8427 | * deferred frees from the previous TXG. | |
8428 | */ | |
e8b96c60 MA |
8429 | zio_t *zio = zio_root(spa, NULL, NULL, 0); |
8430 | VERIFY3U(bpobj_iterate(&spa->spa_deferred_bpobj, | |
37f03da8 | 8431 | bpobj_spa_free_sync_cb, zio, tx), ==, 0); |
e8b96c60 MA |
8432 | VERIFY0(zio_wait(zio)); |
8433 | } | |
8434 | ||
34dc7c2f BB |
8435 | static void |
8436 | spa_sync_nvlist(spa_t *spa, uint64_t obj, nvlist_t *nv, dmu_tx_t *tx) | |
8437 | { | |
8438 | char *packed = NULL; | |
b128c09f | 8439 | size_t bufsize; |
34dc7c2f BB |
8440 | size_t nvsize = 0; |
8441 | dmu_buf_t *db; | |
8442 | ||
8443 | VERIFY(nvlist_size(nv, &nvsize, NV_ENCODE_XDR) == 0); | |
8444 | ||
b128c09f BB |
8445 | /* |
8446 | * Write full (SPA_CONFIG_BLOCKSIZE) blocks of configuration | |
b0bc7a84 | 8447 | * information. This avoids the dmu_buf_will_dirty() path and |
b128c09f BB |
8448 | * saves us a pre-read to get data we don't actually care about. |
8449 | */ | |
9ae529ec | 8450 | bufsize = P2ROUNDUP((uint64_t)nvsize, SPA_CONFIG_BLOCKSIZE); |
79c76d5b | 8451 | packed = vmem_alloc(bufsize, KM_SLEEP); |
34dc7c2f BB |
8452 | |
8453 | VERIFY(nvlist_pack(nv, &packed, &nvsize, NV_ENCODE_XDR, | |
79c76d5b | 8454 | KM_SLEEP) == 0); |
b128c09f | 8455 | bzero(packed + nvsize, bufsize - nvsize); |
34dc7c2f | 8456 | |
b128c09f | 8457 | dmu_write(spa->spa_meta_objset, obj, 0, bufsize, packed, tx); |
34dc7c2f | 8458 | |
00b46022 | 8459 | vmem_free(packed, bufsize); |
34dc7c2f BB |
8460 | |
8461 | VERIFY(0 == dmu_bonus_hold(spa->spa_meta_objset, obj, FTAG, &db)); | |
8462 | dmu_buf_will_dirty(db, tx); | |
8463 | *(uint64_t *)db->db_data = nvsize; | |
8464 | dmu_buf_rele(db, FTAG); | |
8465 | } | |
8466 | ||
8467 | static void | |
8468 | spa_sync_aux_dev(spa_t *spa, spa_aux_vdev_t *sav, dmu_tx_t *tx, | |
8469 | const char *config, const char *entry) | |
8470 | { | |
8471 | nvlist_t *nvroot; | |
8472 | nvlist_t **list; | |
8473 | int i; | |
8474 | ||
8475 | if (!sav->sav_sync) | |
8476 | return; | |
8477 | ||
8478 | /* | |
8479 | * Update the MOS nvlist describing the list of available devices. | |
8480 | * spa_validate_aux() will have already made sure this nvlist is | |
8481 | * valid and the vdevs are labeled appropriately. | |
8482 | */ | |
8483 | if (sav->sav_object == 0) { | |
8484 | sav->sav_object = dmu_object_alloc(spa->spa_meta_objset, | |
8485 | DMU_OT_PACKED_NVLIST, 1 << 14, DMU_OT_PACKED_NVLIST_SIZE, | |
8486 | sizeof (uint64_t), tx); | |
8487 | VERIFY(zap_update(spa->spa_meta_objset, | |
8488 | DMU_POOL_DIRECTORY_OBJECT, entry, sizeof (uint64_t), 1, | |
8489 | &sav->sav_object, tx) == 0); | |
8490 | } | |
8491 | ||
79c76d5b | 8492 | VERIFY(nvlist_alloc(&nvroot, NV_UNIQUE_NAME, KM_SLEEP) == 0); |
34dc7c2f BB |
8493 | if (sav->sav_count == 0) { |
8494 | VERIFY(nvlist_add_nvlist_array(nvroot, config, NULL, 0) == 0); | |
8495 | } else { | |
79c76d5b | 8496 | list = kmem_alloc(sav->sav_count*sizeof (void *), KM_SLEEP); |
34dc7c2f BB |
8497 | for (i = 0; i < sav->sav_count; i++) |
8498 | list[i] = vdev_config_generate(spa, sav->sav_vdevs[i], | |
428870ff | 8499 | B_FALSE, VDEV_CONFIG_L2CACHE); |
34dc7c2f BB |
8500 | VERIFY(nvlist_add_nvlist_array(nvroot, config, list, |
8501 | sav->sav_count) == 0); | |
8502 | for (i = 0; i < sav->sav_count; i++) | |
8503 | nvlist_free(list[i]); | |
8504 | kmem_free(list, sav->sav_count * sizeof (void *)); | |
8505 | } | |
8506 | ||
8507 | spa_sync_nvlist(spa, sav->sav_object, nvroot, tx); | |
8508 | nvlist_free(nvroot); | |
8509 | ||
8510 | sav->sav_sync = B_FALSE; | |
8511 | } | |
8512 | ||
e0ab3ab5 JS |
8513 | /* |
8514 | * Rebuild spa's all-vdev ZAP from the vdev ZAPs indicated in each vdev_t. | |
8515 | * The all-vdev ZAP must be empty. | |
8516 | */ | |
8517 | static void | |
8518 | spa_avz_build(vdev_t *vd, uint64_t avz, dmu_tx_t *tx) | |
8519 | { | |
8520 | spa_t *spa = vd->vdev_spa; | |
e0ab3ab5 JS |
8521 | |
8522 | if (vd->vdev_top_zap != 0) { | |
8523 | VERIFY0(zap_add_int(spa->spa_meta_objset, avz, | |
8524 | vd->vdev_top_zap, tx)); | |
8525 | } | |
8526 | if (vd->vdev_leaf_zap != 0) { | |
8527 | VERIFY0(zap_add_int(spa->spa_meta_objset, avz, | |
8528 | vd->vdev_leaf_zap, tx)); | |
8529 | } | |
1c27024e | 8530 | for (uint64_t i = 0; i < vd->vdev_children; i++) { |
e0ab3ab5 JS |
8531 | spa_avz_build(vd->vdev_child[i], avz, tx); |
8532 | } | |
8533 | } | |
8534 | ||
34dc7c2f BB |
8535 | static void |
8536 | spa_sync_config_object(spa_t *spa, dmu_tx_t *tx) | |
8537 | { | |
8538 | nvlist_t *config; | |
8539 | ||
e0ab3ab5 JS |
8540 | /* |
8541 | * If the pool is being imported from a pre-per-vdev-ZAP version of ZFS, | |
8542 | * its config may not be dirty but we still need to build per-vdev ZAPs. | |
8543 | * Similarly, if the pool is being assembled (e.g. after a split), we | |
8544 | * need to rebuild the AVZ although the config may not be dirty. | |
8545 | */ | |
8546 | if (list_is_empty(&spa->spa_config_dirty_list) && | |
8547 | spa->spa_avz_action == AVZ_ACTION_NONE) | |
34dc7c2f BB |
8548 | return; |
8549 | ||
b128c09f BB |
8550 | spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); |
8551 | ||
e0ab3ab5 | 8552 | ASSERT(spa->spa_avz_action == AVZ_ACTION_NONE || |
38640550 | 8553 | spa->spa_avz_action == AVZ_ACTION_INITIALIZE || |
e0ab3ab5 JS |
8554 | spa->spa_all_vdev_zaps != 0); |
8555 | ||
8556 | if (spa->spa_avz_action == AVZ_ACTION_REBUILD) { | |
e0ab3ab5 JS |
8557 | /* Make and build the new AVZ */ |
8558 | uint64_t new_avz = zap_create(spa->spa_meta_objset, | |
8559 | DMU_OTN_ZAP_METADATA, DMU_OT_NONE, 0, tx); | |
8560 | spa_avz_build(spa->spa_root_vdev, new_avz, tx); | |
8561 | ||
8562 | /* Diff old AVZ with new one */ | |
1c27024e DB |
8563 | zap_cursor_t zc; |
8564 | zap_attribute_t za; | |
8565 | ||
e0ab3ab5 JS |
8566 | for (zap_cursor_init(&zc, spa->spa_meta_objset, |
8567 | spa->spa_all_vdev_zaps); | |
8568 | zap_cursor_retrieve(&zc, &za) == 0; | |
8569 | zap_cursor_advance(&zc)) { | |
8570 | uint64_t vdzap = za.za_first_integer; | |
8571 | if (zap_lookup_int(spa->spa_meta_objset, new_avz, | |
8572 | vdzap) == ENOENT) { | |
8573 | /* | |
8574 | * ZAP is listed in old AVZ but not in new one; | |
8575 | * destroy it | |
8576 | */ | |
8577 | VERIFY0(zap_destroy(spa->spa_meta_objset, vdzap, | |
8578 | tx)); | |
8579 | } | |
8580 | } | |
8581 | ||
8582 | zap_cursor_fini(&zc); | |
8583 | ||
8584 | /* Destroy the old AVZ */ | |
8585 | VERIFY0(zap_destroy(spa->spa_meta_objset, | |
8586 | spa->spa_all_vdev_zaps, tx)); | |
8587 | ||
8588 | /* Replace the old AVZ in the dir obj with the new one */ | |
8589 | VERIFY0(zap_update(spa->spa_meta_objset, | |
8590 | DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_VDEV_ZAP_MAP, | |
8591 | sizeof (new_avz), 1, &new_avz, tx)); | |
8592 | ||
8593 | spa->spa_all_vdev_zaps = new_avz; | |
8594 | } else if (spa->spa_avz_action == AVZ_ACTION_DESTROY) { | |
8595 | zap_cursor_t zc; | |
8596 | zap_attribute_t za; | |
8597 | ||
8598 | /* Walk through the AVZ and destroy all listed ZAPs */ | |
8599 | for (zap_cursor_init(&zc, spa->spa_meta_objset, | |
8600 | spa->spa_all_vdev_zaps); | |
8601 | zap_cursor_retrieve(&zc, &za) == 0; | |
8602 | zap_cursor_advance(&zc)) { | |
8603 | uint64_t zap = za.za_first_integer; | |
8604 | VERIFY0(zap_destroy(spa->spa_meta_objset, zap, tx)); | |
8605 | } | |
8606 | ||
8607 | zap_cursor_fini(&zc); | |
8608 | ||
8609 | /* Destroy and unlink the AVZ itself */ | |
8610 | VERIFY0(zap_destroy(spa->spa_meta_objset, | |
8611 | spa->spa_all_vdev_zaps, tx)); | |
8612 | VERIFY0(zap_remove(spa->spa_meta_objset, | |
8613 | DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_VDEV_ZAP_MAP, tx)); | |
8614 | spa->spa_all_vdev_zaps = 0; | |
8615 | } | |
8616 | ||
8617 | if (spa->spa_all_vdev_zaps == 0) { | |
8618 | spa->spa_all_vdev_zaps = zap_create_link(spa->spa_meta_objset, | |
8619 | DMU_OTN_ZAP_METADATA, DMU_POOL_DIRECTORY_OBJECT, | |
8620 | DMU_POOL_VDEV_ZAP_MAP, tx); | |
8621 | } | |
8622 | spa->spa_avz_action = AVZ_ACTION_NONE; | |
8623 | ||
8624 | /* Create ZAPs for vdevs that don't have them. */ | |
8625 | vdev_construct_zaps(spa->spa_root_vdev, tx); | |
8626 | ||
b128c09f BB |
8627 | config = spa_config_generate(spa, spa->spa_root_vdev, |
8628 | dmu_tx_get_txg(tx), B_FALSE); | |
8629 | ||
ea0b2538 GW |
8630 | /* |
8631 | * If we're upgrading the spa version then make sure that | |
8632 | * the config object gets updated with the correct version. | |
8633 | */ | |
8634 | if (spa->spa_ubsync.ub_version < spa->spa_uberblock.ub_version) | |
8635 | fnvlist_add_uint64(config, ZPOOL_CONFIG_VERSION, | |
8636 | spa->spa_uberblock.ub_version); | |
8637 | ||
b128c09f | 8638 | spa_config_exit(spa, SCL_STATE, FTAG); |
34dc7c2f | 8639 | |
8a5fc748 | 8640 | nvlist_free(spa->spa_config_syncing); |
34dc7c2f BB |
8641 | spa->spa_config_syncing = config; |
8642 | ||
8643 | spa_sync_nvlist(spa, spa->spa_config_object, config, tx); | |
8644 | } | |
8645 | ||
9ae529ec | 8646 | static void |
13fe0198 | 8647 | spa_sync_version(void *arg, dmu_tx_t *tx) |
9ae529ec | 8648 | { |
13fe0198 MA |
8649 | uint64_t *versionp = arg; |
8650 | uint64_t version = *versionp; | |
8651 | spa_t *spa = dmu_tx_pool(tx)->dp_spa; | |
9ae529ec CS |
8652 | |
8653 | /* | |
8654 | * Setting the version is special cased when first creating the pool. | |
8655 | */ | |
8656 | ASSERT(tx->tx_txg != TXG_INITIAL); | |
8657 | ||
8dca0a9a | 8658 | ASSERT(SPA_VERSION_IS_SUPPORTED(version)); |
9ae529ec CS |
8659 | ASSERT(version >= spa_version(spa)); |
8660 | ||
8661 | spa->spa_uberblock.ub_version = version; | |
8662 | vdev_config_dirty(spa->spa_root_vdev); | |
74756182 MM |
8663 | spa_history_log_internal(spa, "set", tx, "version=%lld", |
8664 | (longlong_t)version); | |
9ae529ec CS |
8665 | } |
8666 | ||
34dc7c2f BB |
8667 | /* |
8668 | * Set zpool properties. | |
8669 | */ | |
8670 | static void | |
13fe0198 | 8671 | spa_sync_props(void *arg, dmu_tx_t *tx) |
34dc7c2f | 8672 | { |
13fe0198 MA |
8673 | nvlist_t *nvp = arg; |
8674 | spa_t *spa = dmu_tx_pool(tx)->dp_spa; | |
34dc7c2f | 8675 | objset_t *mos = spa->spa_meta_objset; |
9ae529ec | 8676 | nvpair_t *elem = NULL; |
b128c09f BB |
8677 | |
8678 | mutex_enter(&spa->spa_props_lock); | |
34dc7c2f | 8679 | |
34dc7c2f | 8680 | while ((elem = nvlist_next_nvpair(nvp, elem))) { |
9ae529ec CS |
8681 | uint64_t intval; |
8682 | char *strval, *fname; | |
8683 | zpool_prop_t prop; | |
8684 | const char *propname; | |
8685 | zprop_type_t proptype; | |
fa86b5db | 8686 | spa_feature_t fid; |
9ae529ec | 8687 | |
31864e3d BB |
8688 | switch (prop = zpool_name_to_prop(nvpair_name(elem))) { |
8689 | case ZPOOL_PROP_INVAL: | |
9ae529ec CS |
8690 | /* |
8691 | * We checked this earlier in spa_prop_validate(). | |
8692 | */ | |
8693 | ASSERT(zpool_prop_feature(nvpair_name(elem))); | |
8694 | ||
8695 | fname = strchr(nvpair_name(elem), '@') + 1; | |
fa86b5db | 8696 | VERIFY0(zfeature_lookup_name(fname, &fid)); |
9ae529ec | 8697 | |
fa86b5db | 8698 | spa_feature_enable(spa, fid, tx); |
6f1ffb06 MA |
8699 | spa_history_log_internal(spa, "set", tx, |
8700 | "%s=enabled", nvpair_name(elem)); | |
9ae529ec CS |
8701 | break; |
8702 | ||
34dc7c2f | 8703 | case ZPOOL_PROP_VERSION: |
93cf2076 | 8704 | intval = fnvpair_value_uint64(elem); |
34dc7c2f | 8705 | /* |
4e33ba4c | 8706 | * The version is synced separately before other |
9ae529ec | 8707 | * properties and should be correct by now. |
34dc7c2f | 8708 | */ |
9ae529ec | 8709 | ASSERT3U(spa_version(spa), >=, intval); |
34dc7c2f BB |
8710 | break; |
8711 | ||
8712 | case ZPOOL_PROP_ALTROOT: | |
8713 | /* | |
8714 | * 'altroot' is a non-persistent property. It should | |
8715 | * have been set temporarily at creation or import time. | |
8716 | */ | |
8717 | ASSERT(spa->spa_root != NULL); | |
8718 | break; | |
8719 | ||
572e2857 | 8720 | case ZPOOL_PROP_READONLY: |
34dc7c2f BB |
8721 | case ZPOOL_PROP_CACHEFILE: |
8722 | /* | |
e1cfd73f | 8723 | * 'readonly' and 'cachefile' are also non-persistent |
572e2857 | 8724 | * properties. |
34dc7c2f | 8725 | */ |
34dc7c2f | 8726 | break; |
d96eb2b1 | 8727 | case ZPOOL_PROP_COMMENT: |
93cf2076 | 8728 | strval = fnvpair_value_string(elem); |
d96eb2b1 DM |
8729 | if (spa->spa_comment != NULL) |
8730 | spa_strfree(spa->spa_comment); | |
8731 | spa->spa_comment = spa_strdup(strval); | |
8732 | /* | |
8733 | * We need to dirty the configuration on all the vdevs | |
88a48330 BB |
8734 | * so that their labels get updated. We also need to |
8735 | * update the cache file to keep it in sync with the | |
8736 | * MOS version. It's unnecessary to do this for pool | |
8737 | * creation since the vdev's configuration has already | |
8738 | * been dirtied. | |
d96eb2b1 | 8739 | */ |
88a48330 | 8740 | if (tx->tx_txg != TXG_INITIAL) { |
d96eb2b1 | 8741 | vdev_config_dirty(spa->spa_root_vdev); |
88a48330 BB |
8742 | spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE); |
8743 | } | |
6f1ffb06 MA |
8744 | spa_history_log_internal(spa, "set", tx, |
8745 | "%s=%s", nvpair_name(elem), strval); | |
d96eb2b1 | 8746 | break; |
658fb802 CB |
8747 | case ZPOOL_PROP_COMPATIBILITY: |
8748 | strval = fnvpair_value_string(elem); | |
8749 | if (spa->spa_compatibility != NULL) | |
8750 | spa_strfree(spa->spa_compatibility); | |
8751 | spa->spa_compatibility = spa_strdup(strval); | |
8752 | /* | |
8753 | * Dirty the configuration on vdevs as above. | |
8754 | */ | |
88a48330 | 8755 | if (tx->tx_txg != TXG_INITIAL) { |
658fb802 | 8756 | vdev_config_dirty(spa->spa_root_vdev); |
88a48330 BB |
8757 | spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE); |
8758 | } | |
8759 | ||
658fb802 CB |
8760 | spa_history_log_internal(spa, "set", tx, |
8761 | "%s=%s", nvpair_name(elem), strval); | |
8762 | break; | |
8763 | ||
34dc7c2f BB |
8764 | default: |
8765 | /* | |
8766 | * Set pool property values in the poolprops mos object. | |
8767 | */ | |
34dc7c2f | 8768 | if (spa->spa_pool_props_object == 0) { |
9ae529ec CS |
8769 | spa->spa_pool_props_object = |
8770 | zap_create_link(mos, DMU_OT_POOL_PROPS, | |
34dc7c2f | 8771 | DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_PROPS, |
9ae529ec | 8772 | tx); |
34dc7c2f | 8773 | } |
34dc7c2f BB |
8774 | |
8775 | /* normalize the property name */ | |
8776 | propname = zpool_prop_to_name(prop); | |
8777 | proptype = zpool_prop_get_type(prop); | |
8778 | ||
8779 | if (nvpair_type(elem) == DATA_TYPE_STRING) { | |
8780 | ASSERT(proptype == PROP_TYPE_STRING); | |
93cf2076 GW |
8781 | strval = fnvpair_value_string(elem); |
8782 | VERIFY0(zap_update(mos, | |
34dc7c2f | 8783 | spa->spa_pool_props_object, propname, |
93cf2076 | 8784 | 1, strlen(strval) + 1, strval, tx)); |
6f1ffb06 MA |
8785 | spa_history_log_internal(spa, "set", tx, |
8786 | "%s=%s", nvpair_name(elem), strval); | |
34dc7c2f | 8787 | } else if (nvpair_type(elem) == DATA_TYPE_UINT64) { |
93cf2076 | 8788 | intval = fnvpair_value_uint64(elem); |
34dc7c2f BB |
8789 | |
8790 | if (proptype == PROP_TYPE_INDEX) { | |
8791 | const char *unused; | |
93cf2076 GW |
8792 | VERIFY0(zpool_prop_index_to_string( |
8793 | prop, intval, &unused)); | |
34dc7c2f | 8794 | } |
93cf2076 | 8795 | VERIFY0(zap_update(mos, |
34dc7c2f | 8796 | spa->spa_pool_props_object, propname, |
93cf2076 | 8797 | 8, 1, &intval, tx)); |
6f1ffb06 | 8798 | spa_history_log_internal(spa, "set", tx, |
74756182 MM |
8799 | "%s=%lld", nvpair_name(elem), |
8800 | (longlong_t)intval); | |
34dc7c2f BB |
8801 | } else { |
8802 | ASSERT(0); /* not allowed */ | |
8803 | } | |
8804 | ||
8805 | switch (prop) { | |
8806 | case ZPOOL_PROP_DELEGATION: | |
8807 | spa->spa_delegation = intval; | |
8808 | break; | |
8809 | case ZPOOL_PROP_BOOTFS: | |
8810 | spa->spa_bootfs = intval; | |
8811 | break; | |
8812 | case ZPOOL_PROP_FAILUREMODE: | |
8813 | spa->spa_failmode = intval; | |
8814 | break; | |
1b939560 BB |
8815 | case ZPOOL_PROP_AUTOTRIM: |
8816 | spa->spa_autotrim = intval; | |
8817 | spa_async_request(spa, | |
8818 | SPA_ASYNC_AUTOTRIM_RESTART); | |
8819 | break; | |
9babb374 BB |
8820 | case ZPOOL_PROP_AUTOEXPAND: |
8821 | spa->spa_autoexpand = intval; | |
428870ff BB |
8822 | if (tx->tx_txg != TXG_INITIAL) |
8823 | spa_async_request(spa, | |
8824 | SPA_ASYNC_AUTOEXPAND); | |
8825 | break; | |
379ca9cf OF |
8826 | case ZPOOL_PROP_MULTIHOST: |
8827 | spa->spa_multihost = intval; | |
8828 | break; | |
34dc7c2f BB |
8829 | default: |
8830 | break; | |
8831 | } | |
8832 | } | |
8833 | ||
34dc7c2f | 8834 | } |
b128c09f BB |
8835 | |
8836 | mutex_exit(&spa->spa_props_lock); | |
34dc7c2f BB |
8837 | } |
8838 | ||
428870ff BB |
8839 | /* |
8840 | * Perform one-time upgrade on-disk changes. spa_version() does not | |
8841 | * reflect the new version this txg, so there must be no changes this | |
8842 | * txg to anything that the upgrade code depends on after it executes. | |
8843 | * Therefore this must be called after dsl_pool_sync() does the sync | |
8844 | * tasks. | |
8845 | */ | |
8846 | static void | |
8847 | spa_sync_upgrades(spa_t *spa, dmu_tx_t *tx) | |
8848 | { | |
8dc2197b SD |
8849 | if (spa_sync_pass(spa) != 1) |
8850 | return; | |
428870ff | 8851 | |
8dc2197b | 8852 | dsl_pool_t *dp = spa->spa_dsl_pool; |
13fe0198 MA |
8853 | rrw_enter(&dp->dp_config_rwlock, RW_WRITER, FTAG); |
8854 | ||
428870ff BB |
8855 | if (spa->spa_ubsync.ub_version < SPA_VERSION_ORIGIN && |
8856 | spa->spa_uberblock.ub_version >= SPA_VERSION_ORIGIN) { | |
8857 | dsl_pool_create_origin(dp, tx); | |
8858 | ||
8859 | /* Keeping the origin open increases spa_minref */ | |
8860 | spa->spa_minref += 3; | |
8861 | } | |
8862 | ||
8863 | if (spa->spa_ubsync.ub_version < SPA_VERSION_NEXT_CLONES && | |
8864 | spa->spa_uberblock.ub_version >= SPA_VERSION_NEXT_CLONES) { | |
8865 | dsl_pool_upgrade_clones(dp, tx); | |
8866 | } | |
8867 | ||
8868 | if (spa->spa_ubsync.ub_version < SPA_VERSION_DIR_CLONES && | |
8869 | spa->spa_uberblock.ub_version >= SPA_VERSION_DIR_CLONES) { | |
8870 | dsl_pool_upgrade_dir_clones(dp, tx); | |
8871 | ||
8872 | /* Keeping the freedir open increases spa_minref */ | |
8873 | spa->spa_minref += 3; | |
8874 | } | |
9ae529ec CS |
8875 | |
8876 | if (spa->spa_ubsync.ub_version < SPA_VERSION_FEATURES && | |
8877 | spa->spa_uberblock.ub_version >= SPA_VERSION_FEATURES) { | |
8878 | spa_feature_create_zap_objects(spa, tx); | |
8879 | } | |
62bdd5eb DL |
8880 | |
8881 | /* | |
8882 | * LZ4_COMPRESS feature's behaviour was changed to activate_on_enable | |
8883 | * when possibility to use lz4 compression for metadata was added | |
8884 | * Old pools that have this feature enabled must be upgraded to have | |
8885 | * this feature active | |
8886 | */ | |
8887 | if (spa->spa_uberblock.ub_version >= SPA_VERSION_FEATURES) { | |
8888 | boolean_t lz4_en = spa_feature_is_enabled(spa, | |
8889 | SPA_FEATURE_LZ4_COMPRESS); | |
8890 | boolean_t lz4_ac = spa_feature_is_active(spa, | |
8891 | SPA_FEATURE_LZ4_COMPRESS); | |
8892 | ||
8893 | if (lz4_en && !lz4_ac) | |
8894 | spa_feature_incr(spa, SPA_FEATURE_LZ4_COMPRESS, tx); | |
8895 | } | |
3c67d83a TH |
8896 | |
8897 | /* | |
8898 | * If we haven't written the salt, do so now. Note that the | |
8899 | * feature may not be activated yet, but that's fine since | |
8900 | * the presence of this ZAP entry is backwards compatible. | |
8901 | */ | |
8902 | if (zap_contains(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, | |
8903 | DMU_POOL_CHECKSUM_SALT) == ENOENT) { | |
8904 | VERIFY0(zap_add(spa->spa_meta_objset, | |
8905 | DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CHECKSUM_SALT, 1, | |
8906 | sizeof (spa->spa_cksum_salt.zcs_bytes), | |
8907 | spa->spa_cksum_salt.zcs_bytes, tx)); | |
8908 | } | |
8909 | ||
13fe0198 | 8910 | rrw_exit(&dp->dp_config_rwlock, FTAG); |
428870ff BB |
8911 | } |
8912 | ||
a1d477c2 MA |
8913 | static void |
8914 | vdev_indirect_state_sync_verify(vdev_t *vd) | |
8915 | { | |
2a8ba608 MM |
8916 | vdev_indirect_mapping_t *vim __maybe_unused = vd->vdev_indirect_mapping; |
8917 | vdev_indirect_births_t *vib __maybe_unused = vd->vdev_indirect_births; | |
a1d477c2 MA |
8918 | |
8919 | if (vd->vdev_ops == &vdev_indirect_ops) { | |
8920 | ASSERT(vim != NULL); | |
8921 | ASSERT(vib != NULL); | |
8922 | } | |
8923 | ||
27f80e85 BB |
8924 | uint64_t obsolete_sm_object = 0; |
8925 | ASSERT0(vdev_obsolete_sm_object(vd, &obsolete_sm_object)); | |
8926 | if (obsolete_sm_object != 0) { | |
a1d477c2 MA |
8927 | ASSERT(vd->vdev_obsolete_sm != NULL); |
8928 | ASSERT(vd->vdev_removing || | |
8929 | vd->vdev_ops == &vdev_indirect_ops); | |
8930 | ASSERT(vdev_indirect_mapping_num_entries(vim) > 0); | |
8931 | ASSERT(vdev_indirect_mapping_bytes_mapped(vim) > 0); | |
27f80e85 | 8932 | ASSERT3U(obsolete_sm_object, ==, |
a1d477c2 MA |
8933 | space_map_object(vd->vdev_obsolete_sm)); |
8934 | ASSERT3U(vdev_indirect_mapping_bytes_mapped(vim), >=, | |
8935 | space_map_allocated(vd->vdev_obsolete_sm)); | |
8936 | } | |
8937 | ASSERT(vd->vdev_obsolete_segments != NULL); | |
8938 | ||
8939 | /* | |
8940 | * Since frees / remaps to an indirect vdev can only | |
8941 | * happen in syncing context, the obsolete segments | |
8942 | * tree must be empty when we start syncing. | |
8943 | */ | |
8944 | ASSERT0(range_tree_space(vd->vdev_obsolete_segments)); | |
8945 | } | |
8946 | ||
34dc7c2f | 8947 | /* |
8dc2197b SD |
8948 | * Set the top-level vdev's max queue depth. Evaluate each top-level's |
8949 | * async write queue depth in case it changed. The max queue depth will | |
8950 | * not change in the middle of syncing out this txg. | |
34dc7c2f | 8951 | */ |
8dc2197b SD |
8952 | static void |
8953 | spa_sync_adjust_vdev_max_queue_depth(spa_t *spa) | |
34dc7c2f | 8954 | { |
8dc2197b SD |
8955 | ASSERT(spa_writeable(spa)); |
8956 | ||
34dc7c2f | 8957 | vdev_t *rvd = spa->spa_root_vdev; |
3dfb57a3 DB |
8958 | uint32_t max_queue_depth = zfs_vdev_async_write_max_active * |
8959 | zfs_vdev_queue_depth_pct / 100; | |
8dc2197b SD |
8960 | metaslab_class_t *normal = spa_normal_class(spa); |
8961 | metaslab_class_t *special = spa_special_class(spa); | |
8962 | metaslab_class_t *dedup = spa_dedup_class(spa); | |
34dc7c2f | 8963 | |
492f64e9 | 8964 | uint64_t slots_per_allocator = 0; |
1c27024e | 8965 | for (int c = 0; c < rvd->vdev_children; c++) { |
3dfb57a3 | 8966 | vdev_t *tvd = rvd->vdev_child[c]; |
cc99f275 | 8967 | |
8dc2197b | 8968 | metaslab_group_t *mg = tvd->vdev_mg; |
cc99f275 DB |
8969 | if (mg == NULL || !metaslab_group_initialized(mg)) |
8970 | continue; | |
3dfb57a3 | 8971 | |
8dc2197b | 8972 | metaslab_class_t *mc = mg->mg_class; |
cc99f275 | 8973 | if (mc != normal && mc != special && mc != dedup) |
3dfb57a3 DB |
8974 | continue; |
8975 | ||
8976 | /* | |
8977 | * It is safe to do a lock-free check here because only async | |
8978 | * allocations look at mg_max_alloc_queue_depth, and async | |
8979 | * allocations all happen from spa_sync(). | |
8980 | */ | |
32d805c3 | 8981 | for (int i = 0; i < mg->mg_allocators; i++) { |
424fd7c3 | 8982 | ASSERT0(zfs_refcount_count( |
32d805c3 MA |
8983 | &(mg->mg_allocator[i].mga_alloc_queue_depth))); |
8984 | } | |
3dfb57a3 | 8985 | mg->mg_max_alloc_queue_depth = max_queue_depth; |
492f64e9 | 8986 | |
32d805c3 MA |
8987 | for (int i = 0; i < mg->mg_allocators; i++) { |
8988 | mg->mg_allocator[i].mga_cur_max_alloc_queue_depth = | |
492f64e9 PD |
8989 | zfs_vdev_def_queue_depth; |
8990 | } | |
8991 | slots_per_allocator += zfs_vdev_def_queue_depth; | |
3dfb57a3 | 8992 | } |
cc99f275 | 8993 | |
492f64e9 | 8994 | for (int i = 0; i < spa->spa_alloc_count; i++) { |
f8020c93 AM |
8995 | ASSERT0(zfs_refcount_count(&normal->mc_allocator[i]. |
8996 | mca_alloc_slots)); | |
8997 | ASSERT0(zfs_refcount_count(&special->mc_allocator[i]. | |
8998 | mca_alloc_slots)); | |
8999 | ASSERT0(zfs_refcount_count(&dedup->mc_allocator[i]. | |
9000 | mca_alloc_slots)); | |
9001 | normal->mc_allocator[i].mca_alloc_max_slots = | |
9002 | slots_per_allocator; | |
9003 | special->mc_allocator[i].mca_alloc_max_slots = | |
9004 | slots_per_allocator; | |
9005 | dedup->mc_allocator[i].mca_alloc_max_slots = | |
9006 | slots_per_allocator; | |
cc99f275 DB |
9007 | } |
9008 | normal->mc_alloc_throttle_enabled = zio_dva_throttle_enabled; | |
9009 | special->mc_alloc_throttle_enabled = zio_dva_throttle_enabled; | |
9010 | dedup->mc_alloc_throttle_enabled = zio_dva_throttle_enabled; | |
8dc2197b SD |
9011 | } |
9012 | ||
9013 | static void | |
9014 | spa_sync_condense_indirect(spa_t *spa, dmu_tx_t *tx) | |
9015 | { | |
9016 | ASSERT(spa_writeable(spa)); | |
3dfb57a3 | 9017 | |
8dc2197b | 9018 | vdev_t *rvd = spa->spa_root_vdev; |
a1d477c2 MA |
9019 | for (int c = 0; c < rvd->vdev_children; c++) { |
9020 | vdev_t *vd = rvd->vdev_child[c]; | |
9021 | vdev_indirect_state_sync_verify(vd); | |
9022 | ||
9023 | if (vdev_indirect_should_condense(vd)) { | |
9024 | spa_condense_indirect_start_sync(vd, tx); | |
9025 | break; | |
9026 | } | |
9027 | } | |
8dc2197b SD |
9028 | } |
9029 | ||
9030 | static void | |
9031 | spa_sync_iterate_to_convergence(spa_t *spa, dmu_tx_t *tx) | |
9032 | { | |
9033 | objset_t *mos = spa->spa_meta_objset; | |
9034 | dsl_pool_t *dp = spa->spa_dsl_pool; | |
9035 | uint64_t txg = tx->tx_txg; | |
9036 | bplist_t *free_bpl = &spa->spa_free_bplist[txg & TXG_MASK]; | |
a1d477c2 | 9037 | |
34dc7c2f | 9038 | do { |
428870ff | 9039 | int pass = ++spa->spa_sync_pass; |
34dc7c2f BB |
9040 | |
9041 | spa_sync_config_object(spa, tx); | |
9042 | spa_sync_aux_dev(spa, &spa->spa_spares, tx, | |
9043 | ZPOOL_CONFIG_SPARES, DMU_POOL_SPARES); | |
9044 | spa_sync_aux_dev(spa, &spa->spa_l2cache, tx, | |
9045 | ZPOOL_CONFIG_L2CACHE, DMU_POOL_L2CACHE); | |
9046 | spa_errlog_sync(spa, txg); | |
9047 | dsl_pool_sync(dp, txg); | |
9048 | ||
93e28d66 SD |
9049 | if (pass < zfs_sync_pass_deferred_free || |
9050 | spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) { | |
9051 | /* | |
9052 | * If the log space map feature is active we don't | |
9053 | * care about deferred frees and the deferred bpobj | |
9054 | * as the log space map should effectively have the | |
9055 | * same results (i.e. appending only to one object). | |
9056 | */ | |
e8b96c60 | 9057 | spa_sync_frees(spa, free_bpl, tx); |
428870ff | 9058 | } else { |
905edb40 MA |
9059 | /* |
9060 | * We can not defer frees in pass 1, because | |
9061 | * we sync the deferred frees later in pass 1. | |
9062 | */ | |
9063 | ASSERT3U(pass, >, 1); | |
37f03da8 | 9064 | bplist_iterate(free_bpl, bpobj_enqueue_alloc_cb, |
e8b96c60 | 9065 | &spa->spa_deferred_bpobj, tx); |
34dc7c2f BB |
9066 | } |
9067 | ||
428870ff BB |
9068 | ddt_sync(spa, txg); |
9069 | dsl_scan_sync(dp, tx); | |
8dc2197b SD |
9070 | svr_sync(spa, tx); |
9071 | spa_sync_upgrades(spa, tx); | |
34dc7c2f | 9072 | |
93e28d66 SD |
9073 | spa_flush_metaslabs(spa, tx); |
9074 | ||
8dc2197b | 9075 | vdev_t *vd = NULL; |
a1d477c2 MA |
9076 | while ((vd = txg_list_remove(&spa->spa_vdev_txg_list, txg)) |
9077 | != NULL) | |
428870ff BB |
9078 | vdev_sync(vd, txg); |
9079 | ||
8dc2197b SD |
9080 | /* |
9081 | * Note: We need to check if the MOS is dirty because we could | |
9082 | * have marked the MOS dirty without updating the uberblock | |
9083 | * (e.g. if we have sync tasks but no dirty user data). We need | |
9084 | * to check the uberblock's rootbp because it is updated if we | |
9085 | * have synced out dirty data (though in this case the MOS will | |
9086 | * most likely also be dirty due to second order effects, we | |
9087 | * don't want to rely on that here). | |
9088 | */ | |
9089 | if (pass == 1 && | |
9090 | spa->spa_uberblock.ub_rootbp.blk_birth < txg && | |
9091 | !dmu_objset_is_dirty(mos, txg)) { | |
905edb40 | 9092 | /* |
8dc2197b SD |
9093 | * Nothing changed on the first pass, therefore this |
9094 | * TXG is a no-op. Avoid syncing deferred frees, so | |
9095 | * that we can keep this TXG as a no-op. | |
905edb40 | 9096 | */ |
8dc2197b SD |
9097 | ASSERT(txg_list_empty(&dp->dp_dirty_datasets, txg)); |
9098 | ASSERT(txg_list_empty(&dp->dp_dirty_dirs, txg)); | |
9099 | ASSERT(txg_list_empty(&dp->dp_sync_tasks, txg)); | |
9100 | ASSERT(txg_list_empty(&dp->dp_early_sync_tasks, txg)); | |
9101 | break; | |
905edb40 | 9102 | } |
34dc7c2f | 9103 | |
8dc2197b | 9104 | spa_sync_deferred_frees(spa, tx); |
428870ff | 9105 | } while (dmu_objset_is_dirty(mos, txg)); |
8dc2197b | 9106 | } |
34dc7c2f | 9107 | |
8dc2197b SD |
9108 | /* |
9109 | * Rewrite the vdev configuration (which includes the uberblock) to | |
9110 | * commit the transaction group. | |
9111 | * | |
9112 | * If there are no dirty vdevs, we sync the uberblock to a few random | |
9113 | * top-level vdevs that are known to be visible in the config cache | |
9114 | * (see spa_vdev_add() for a complete description). If there *are* dirty | |
9115 | * vdevs, sync the uberblock to all vdevs. | |
9116 | */ | |
9117 | static void | |
9118 | spa_sync_rewrite_vdev_config(spa_t *spa, dmu_tx_t *tx) | |
9119 | { | |
9120 | vdev_t *rvd = spa->spa_root_vdev; | |
9121 | uint64_t txg = tx->tx_txg; | |
a1d477c2 | 9122 | |
b128c09f | 9123 | for (;;) { |
8dc2197b SD |
9124 | int error = 0; |
9125 | ||
b128c09f BB |
9126 | /* |
9127 | * We hold SCL_STATE to prevent vdev open/close/etc. | |
9128 | * while we're attempting to write the vdev labels. | |
9129 | */ | |
9130 | spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); | |
9131 | ||
9132 | if (list_is_empty(&spa->spa_config_dirty_list)) { | |
d2734cce | 9133 | vdev_t *svd[SPA_SYNC_MIN_VDEVS] = { NULL }; |
b128c09f BB |
9134 | int svdcount = 0; |
9135 | int children = rvd->vdev_children; | |
29274c9f | 9136 | int c0 = random_in_range(children); |
b128c09f | 9137 | |
1c27024e | 9138 | for (int c = 0; c < children; c++) { |
8dc2197b SD |
9139 | vdev_t *vd = |
9140 | rvd->vdev_child[(c0 + c) % children]; | |
d2734cce SD |
9141 | |
9142 | /* Stop when revisiting the first vdev */ | |
9143 | if (c > 0 && svd[0] == vd) | |
9144 | break; | |
9145 | ||
8dc2197b SD |
9146 | if (vd->vdev_ms_array == 0 || |
9147 | vd->vdev_islog || | |
a1d477c2 | 9148 | !vdev_is_concrete(vd)) |
b128c09f | 9149 | continue; |
d2734cce | 9150 | |
b128c09f | 9151 | svd[svdcount++] = vd; |
6cb8e530 | 9152 | if (svdcount == SPA_SYNC_MIN_VDEVS) |
b128c09f BB |
9153 | break; |
9154 | } | |
b6fcb792 | 9155 | error = vdev_config_sync(svd, svdcount, txg); |
b128c09f BB |
9156 | } else { |
9157 | error = vdev_config_sync(rvd->vdev_child, | |
b6fcb792 | 9158 | rvd->vdev_children, txg); |
34dc7c2f | 9159 | } |
34dc7c2f | 9160 | |
3bc7e0fb GW |
9161 | if (error == 0) |
9162 | spa->spa_last_synced_guid = rvd->vdev_guid; | |
9163 | ||
b128c09f BB |
9164 | spa_config_exit(spa, SCL_STATE, FTAG); |
9165 | ||
9166 | if (error == 0) | |
9167 | break; | |
cec3a0a1 | 9168 | zio_suspend(spa, NULL, ZIO_SUSPEND_IOERR); |
b128c09f BB |
9169 | zio_resume_wait(spa); |
9170 | } | |
8dc2197b SD |
9171 | } |
9172 | ||
9173 | /* | |
9174 | * Sync the specified transaction group. New blocks may be dirtied as | |
9175 | * part of the process, so we iterate until it converges. | |
9176 | */ | |
9177 | void | |
9178 | spa_sync(spa_t *spa, uint64_t txg) | |
9179 | { | |
9180 | vdev_t *vd = NULL; | |
9181 | ||
9182 | VERIFY(spa_writeable(spa)); | |
9183 | ||
9184 | /* | |
9185 | * Wait for i/os issued in open context that need to complete | |
9186 | * before this txg syncs. | |
9187 | */ | |
9188 | (void) zio_wait(spa->spa_txg_zio[txg & TXG_MASK]); | |
9189 | spa->spa_txg_zio[txg & TXG_MASK] = zio_root(spa, NULL, NULL, | |
9190 | ZIO_FLAG_CANFAIL); | |
9191 | ||
9192 | /* | |
9193 | * Lock out configuration changes. | |
9194 | */ | |
9195 | spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); | |
9196 | ||
9197 | spa->spa_syncing_txg = txg; | |
9198 | spa->spa_sync_pass = 0; | |
9199 | ||
9200 | for (int i = 0; i < spa->spa_alloc_count; i++) { | |
1b50749c AM |
9201 | mutex_enter(&spa->spa_allocs[i].spaa_lock); |
9202 | VERIFY0(avl_numnodes(&spa->spa_allocs[i].spaa_tree)); | |
9203 | mutex_exit(&spa->spa_allocs[i].spaa_lock); | |
8dc2197b SD |
9204 | } |
9205 | ||
9206 | /* | |
9207 | * If there are any pending vdev state changes, convert them | |
9208 | * into config changes that go out with this transaction group. | |
9209 | */ | |
9210 | spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); | |
9211 | while (list_head(&spa->spa_state_dirty_list) != NULL) { | |
9212 | /* | |
9213 | * We need the write lock here because, for aux vdevs, | |
9214 | * calling vdev_config_dirty() modifies sav_config. | |
9215 | * This is ugly and will become unnecessary when we | |
9216 | * eliminate the aux vdev wart by integrating all vdevs | |
9217 | * into the root vdev tree. | |
9218 | */ | |
9219 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
9220 | spa_config_enter(spa, SCL_CONFIG | SCL_STATE, FTAG, RW_WRITER); | |
9221 | while ((vd = list_head(&spa->spa_state_dirty_list)) != NULL) { | |
9222 | vdev_state_clean(vd); | |
9223 | vdev_config_dirty(vd); | |
9224 | } | |
9225 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
9226 | spa_config_enter(spa, SCL_CONFIG | SCL_STATE, FTAG, RW_READER); | |
9227 | } | |
9228 | spa_config_exit(spa, SCL_STATE, FTAG); | |
9229 | ||
9230 | dsl_pool_t *dp = spa->spa_dsl_pool; | |
9231 | dmu_tx_t *tx = dmu_tx_create_assigned(dp, txg); | |
9232 | ||
9233 | spa->spa_sync_starttime = gethrtime(); | |
9234 | taskq_cancel_id(system_delay_taskq, spa->spa_deadman_tqid); | |
9235 | spa->spa_deadman_tqid = taskq_dispatch_delay(system_delay_taskq, | |
9236 | spa_deadman, spa, TQ_SLEEP, ddi_get_lbolt() + | |
9237 | NSEC_TO_TICK(spa->spa_deadman_synctime)); | |
9238 | ||
9239 | /* | |
9240 | * If we are upgrading to SPA_VERSION_RAIDZ_DEFLATE this txg, | |
9241 | * set spa_deflate if we have no raid-z vdevs. | |
9242 | */ | |
9243 | if (spa->spa_ubsync.ub_version < SPA_VERSION_RAIDZ_DEFLATE && | |
9244 | spa->spa_uberblock.ub_version >= SPA_VERSION_RAIDZ_DEFLATE) { | |
9245 | vdev_t *rvd = spa->spa_root_vdev; | |
9246 | ||
9247 | int i; | |
9248 | for (i = 0; i < rvd->vdev_children; i++) { | |
9249 | vd = rvd->vdev_child[i]; | |
9250 | if (vd->vdev_deflate_ratio != SPA_MINBLOCKSIZE) | |
9251 | break; | |
9252 | } | |
9253 | if (i == rvd->vdev_children) { | |
9254 | spa->spa_deflate = TRUE; | |
9255 | VERIFY0(zap_add(spa->spa_meta_objset, | |
9256 | DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
9257 | sizeof (uint64_t), 1, &spa->spa_deflate, tx)); | |
9258 | } | |
9259 | } | |
9260 | ||
9261 | spa_sync_adjust_vdev_max_queue_depth(spa); | |
9262 | ||
9263 | spa_sync_condense_indirect(spa, tx); | |
9264 | ||
9265 | spa_sync_iterate_to_convergence(spa, tx); | |
9266 | ||
9267 | #ifdef ZFS_DEBUG | |
9268 | if (!list_is_empty(&spa->spa_config_dirty_list)) { | |
9269 | /* | |
9270 | * Make sure that the number of ZAPs for all the vdevs matches | |
9271 | * the number of ZAPs in the per-vdev ZAP list. This only gets | |
9272 | * called if the config is dirty; otherwise there may be | |
9273 | * outstanding AVZ operations that weren't completed in | |
9274 | * spa_sync_config_object. | |
9275 | */ | |
9276 | uint64_t all_vdev_zap_entry_count; | |
9277 | ASSERT0(zap_count(spa->spa_meta_objset, | |
9278 | spa->spa_all_vdev_zaps, &all_vdev_zap_entry_count)); | |
9279 | ASSERT3U(vdev_count_verify_zaps(spa->spa_root_vdev), ==, | |
9280 | all_vdev_zap_entry_count); | |
9281 | } | |
9282 | #endif | |
9283 | ||
9284 | if (spa->spa_vdev_removal != NULL) { | |
9285 | ASSERT0(spa->spa_vdev_removal->svr_bytes_done[txg & TXG_MASK]); | |
9286 | } | |
9287 | ||
9288 | spa_sync_rewrite_vdev_config(spa, tx); | |
34dc7c2f BB |
9289 | dmu_tx_commit(tx); |
9290 | ||
57ddcda1 | 9291 | taskq_cancel_id(system_delay_taskq, spa->spa_deadman_tqid); |
cc92e9d0 GW |
9292 | spa->spa_deadman_tqid = 0; |
9293 | ||
34dc7c2f BB |
9294 | /* |
9295 | * Clear the dirty config list. | |
9296 | */ | |
b128c09f | 9297 | while ((vd = list_head(&spa->spa_config_dirty_list)) != NULL) |
34dc7c2f BB |
9298 | vdev_config_clean(vd); |
9299 | ||
9300 | /* | |
9301 | * Now that the new config has synced transactionally, | |
9302 | * let it become visible to the config cache. | |
9303 | */ | |
9304 | if (spa->spa_config_syncing != NULL) { | |
9305 | spa_config_set(spa, spa->spa_config_syncing); | |
9306 | spa->spa_config_txg = txg; | |
9307 | spa->spa_config_syncing = NULL; | |
9308 | } | |
9309 | ||
428870ff | 9310 | dsl_pool_sync_done(dp, txg); |
34dc7c2f | 9311 | |
492f64e9 | 9312 | for (int i = 0; i < spa->spa_alloc_count; i++) { |
1b50749c AM |
9313 | mutex_enter(&spa->spa_allocs[i].spaa_lock); |
9314 | VERIFY0(avl_numnodes(&spa->spa_allocs[i].spaa_tree)); | |
9315 | mutex_exit(&spa->spa_allocs[i].spaa_lock); | |
492f64e9 | 9316 | } |
3dfb57a3 | 9317 | |
34dc7c2f BB |
9318 | /* |
9319 | * Update usable space statistics. | |
9320 | */ | |
619f0976 GW |
9321 | while ((vd = txg_list_remove(&spa->spa_vdev_txg_list, TXG_CLEAN(txg))) |
9322 | != NULL) | |
34dc7c2f | 9323 | vdev_sync_done(vd, txg); |
f09fda50 PD |
9324 | |
9325 | metaslab_class_evict_old(spa->spa_normal_class, txg); | |
9326 | metaslab_class_evict_old(spa->spa_log_class, txg); | |
9327 | ||
93e28d66 | 9328 | spa_sync_close_syncing_log_sm(spa); |
34dc7c2f | 9329 | |
428870ff BB |
9330 | spa_update_dspace(spa); |
9331 | ||
34dc7c2f BB |
9332 | /* |
9333 | * It had better be the case that we didn't dirty anything | |
9334 | * since vdev_config_sync(). | |
9335 | */ | |
9336 | ASSERT(txg_list_empty(&dp->dp_dirty_datasets, txg)); | |
9337 | ASSERT(txg_list_empty(&dp->dp_dirty_dirs, txg)); | |
9338 | ASSERT(txg_list_empty(&spa->spa_vdev_txg_list, txg)); | |
428870ff | 9339 | |
d2734cce SD |
9340 | while (zfs_pause_spa_sync) |
9341 | delay(1); | |
9342 | ||
428870ff | 9343 | spa->spa_sync_pass = 0; |
34dc7c2f | 9344 | |
55922e73 GW |
9345 | /* |
9346 | * Update the last synced uberblock here. We want to do this at | |
9347 | * the end of spa_sync() so that consumers of spa_last_synced_txg() | |
9348 | * will be guaranteed that all the processing associated with | |
9349 | * that txg has been completed. | |
9350 | */ | |
9351 | spa->spa_ubsync = spa->spa_uberblock; | |
b128c09f | 9352 | spa_config_exit(spa, SCL_CONFIG, FTAG); |
34dc7c2f | 9353 | |
428870ff BB |
9354 | spa_handle_ignored_writes(spa); |
9355 | ||
34dc7c2f BB |
9356 | /* |
9357 | * If any async tasks have been requested, kick them off. | |
9358 | */ | |
9359 | spa_async_dispatch(spa); | |
9360 | } | |
9361 | ||
9362 | /* | |
9363 | * Sync all pools. We don't want to hold the namespace lock across these | |
9364 | * operations, so we take a reference on the spa_t and drop the lock during the | |
9365 | * sync. | |
9366 | */ | |
9367 | void | |
9368 | spa_sync_allpools(void) | |
9369 | { | |
9370 | spa_t *spa = NULL; | |
9371 | mutex_enter(&spa_namespace_lock); | |
9372 | while ((spa = spa_next(spa)) != NULL) { | |
572e2857 BB |
9373 | if (spa_state(spa) != POOL_STATE_ACTIVE || |
9374 | !spa_writeable(spa) || spa_suspended(spa)) | |
34dc7c2f BB |
9375 | continue; |
9376 | spa_open_ref(spa, FTAG); | |
9377 | mutex_exit(&spa_namespace_lock); | |
9378 | txg_wait_synced(spa_get_dsl(spa), 0); | |
9379 | mutex_enter(&spa_namespace_lock); | |
9380 | spa_close(spa, FTAG); | |
9381 | } | |
9382 | mutex_exit(&spa_namespace_lock); | |
9383 | } | |
9384 | ||
9385 | /* | |
9386 | * ========================================================================== | |
9387 | * Miscellaneous routines | |
9388 | * ========================================================================== | |
9389 | */ | |
9390 | ||
9391 | /* | |
9392 | * Remove all pools in the system. | |
9393 | */ | |
9394 | void | |
9395 | spa_evict_all(void) | |
9396 | { | |
9397 | spa_t *spa; | |
9398 | ||
9399 | /* | |
9400 | * Remove all cached state. All pools should be closed now, | |
9401 | * so every spa in the AVL tree should be unreferenced. | |
9402 | */ | |
9403 | mutex_enter(&spa_namespace_lock); | |
9404 | while ((spa = spa_next(NULL)) != NULL) { | |
9405 | /* | |
9406 | * Stop async tasks. The async thread may need to detach | |
9407 | * a device that's been replaced, which requires grabbing | |
9408 | * spa_namespace_lock, so we must drop it here. | |
9409 | */ | |
9410 | spa_open_ref(spa, FTAG); | |
9411 | mutex_exit(&spa_namespace_lock); | |
9412 | spa_async_suspend(spa); | |
9413 | mutex_enter(&spa_namespace_lock); | |
34dc7c2f BB |
9414 | spa_close(spa, FTAG); |
9415 | ||
9416 | if (spa->spa_state != POOL_STATE_UNINITIALIZED) { | |
9417 | spa_unload(spa); | |
9418 | spa_deactivate(spa); | |
9419 | } | |
9420 | spa_remove(spa); | |
9421 | } | |
9422 | mutex_exit(&spa_namespace_lock); | |
9423 | } | |
9424 | ||
9425 | vdev_t * | |
9babb374 | 9426 | spa_lookup_by_guid(spa_t *spa, uint64_t guid, boolean_t aux) |
34dc7c2f | 9427 | { |
b128c09f BB |
9428 | vdev_t *vd; |
9429 | int i; | |
9430 | ||
9431 | if ((vd = vdev_lookup_by_guid(spa->spa_root_vdev, guid)) != NULL) | |
9432 | return (vd); | |
9433 | ||
9babb374 | 9434 | if (aux) { |
b128c09f BB |
9435 | for (i = 0; i < spa->spa_l2cache.sav_count; i++) { |
9436 | vd = spa->spa_l2cache.sav_vdevs[i]; | |
9babb374 BB |
9437 | if (vd->vdev_guid == guid) |
9438 | return (vd); | |
9439 | } | |
9440 | ||
9441 | for (i = 0; i < spa->spa_spares.sav_count; i++) { | |
9442 | vd = spa->spa_spares.sav_vdevs[i]; | |
b128c09f BB |
9443 | if (vd->vdev_guid == guid) |
9444 | return (vd); | |
9445 | } | |
9446 | } | |
9447 | ||
9448 | return (NULL); | |
34dc7c2f BB |
9449 | } |
9450 | ||
9451 | void | |
9452 | spa_upgrade(spa_t *spa, uint64_t version) | |
9453 | { | |
572e2857 BB |
9454 | ASSERT(spa_writeable(spa)); |
9455 | ||
b128c09f | 9456 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f BB |
9457 | |
9458 | /* | |
9459 | * This should only be called for a non-faulted pool, and since a | |
9460 | * future version would result in an unopenable pool, this shouldn't be | |
9461 | * possible. | |
9462 | */ | |
8dca0a9a | 9463 | ASSERT(SPA_VERSION_IS_SUPPORTED(spa->spa_uberblock.ub_version)); |
9b67f605 | 9464 | ASSERT3U(version, >=, spa->spa_uberblock.ub_version); |
34dc7c2f BB |
9465 | |
9466 | spa->spa_uberblock.ub_version = version; | |
9467 | vdev_config_dirty(spa->spa_root_vdev); | |
9468 | ||
b128c09f | 9469 | spa_config_exit(spa, SCL_ALL, FTAG); |
34dc7c2f BB |
9470 | |
9471 | txg_wait_synced(spa_get_dsl(spa), 0); | |
9472 | } | |
9473 | ||
9474 | boolean_t | |
9475 | spa_has_spare(spa_t *spa, uint64_t guid) | |
9476 | { | |
9477 | int i; | |
9478 | uint64_t spareguid; | |
9479 | spa_aux_vdev_t *sav = &spa->spa_spares; | |
9480 | ||
9481 | for (i = 0; i < sav->sav_count; i++) | |
9482 | if (sav->sav_vdevs[i]->vdev_guid == guid) | |
9483 | return (B_TRUE); | |
9484 | ||
9485 | for (i = 0; i < sav->sav_npending; i++) { | |
9486 | if (nvlist_lookup_uint64(sav->sav_pending[i], ZPOOL_CONFIG_GUID, | |
9487 | &spareguid) == 0 && spareguid == guid) | |
9488 | return (B_TRUE); | |
9489 | } | |
9490 | ||
9491 | return (B_FALSE); | |
9492 | } | |
9493 | ||
b128c09f BB |
9494 | /* |
9495 | * Check if a pool has an active shared spare device. | |
9496 | * Note: reference count of an active spare is 2, as a spare and as a replace | |
9497 | */ | |
9498 | static boolean_t | |
9499 | spa_has_active_shared_spare(spa_t *spa) | |
9500 | { | |
9501 | int i, refcnt; | |
9502 | uint64_t pool; | |
9503 | spa_aux_vdev_t *sav = &spa->spa_spares; | |
9504 | ||
9505 | for (i = 0; i < sav->sav_count; i++) { | |
9506 | if (spa_spare_exists(sav->sav_vdevs[i]->vdev_guid, &pool, | |
9507 | &refcnt) && pool != 0ULL && pool == spa_guid(spa) && | |
9508 | refcnt > 2) | |
9509 | return (B_TRUE); | |
9510 | } | |
9511 | ||
9512 | return (B_FALSE); | |
9513 | } | |
9514 | ||
93e28d66 SD |
9515 | uint64_t |
9516 | spa_total_metaslabs(spa_t *spa) | |
9517 | { | |
9518 | vdev_t *rvd = spa->spa_root_vdev; | |
9519 | ||
9520 | uint64_t m = 0; | |
9521 | for (uint64_t c = 0; c < rvd->vdev_children; c++) { | |
9522 | vdev_t *vd = rvd->vdev_child[c]; | |
9523 | if (!vdev_is_concrete(vd)) | |
9524 | continue; | |
9525 | m += vd->vdev_ms_count; | |
9526 | } | |
9527 | return (m); | |
9528 | } | |
9529 | ||
e60e158e JG |
9530 | /* |
9531 | * Notify any waiting threads that some activity has switched from being in- | |
9532 | * progress to not-in-progress so that the thread can wake up and determine | |
9533 | * whether it is finished waiting. | |
9534 | */ | |
9535 | void | |
9536 | spa_notify_waiters(spa_t *spa) | |
9537 | { | |
9538 | /* | |
9539 | * Acquiring spa_activities_lock here prevents the cv_broadcast from | |
9540 | * happening between the waiting thread's check and cv_wait. | |
9541 | */ | |
9542 | mutex_enter(&spa->spa_activities_lock); | |
9543 | cv_broadcast(&spa->spa_activities_cv); | |
9544 | mutex_exit(&spa->spa_activities_lock); | |
9545 | } | |
9546 | ||
9547 | /* | |
9548 | * Notify any waiting threads that the pool is exporting, and then block until | |
9549 | * they are finished using the spa_t. | |
9550 | */ | |
9551 | void | |
9552 | spa_wake_waiters(spa_t *spa) | |
9553 | { | |
9554 | mutex_enter(&spa->spa_activities_lock); | |
9555 | spa->spa_waiters_cancel = B_TRUE; | |
9556 | cv_broadcast(&spa->spa_activities_cv); | |
9557 | while (spa->spa_waiters != 0) | |
9558 | cv_wait(&spa->spa_waiters_cv, &spa->spa_activities_lock); | |
9559 | spa->spa_waiters_cancel = B_FALSE; | |
9560 | mutex_exit(&spa->spa_activities_lock); | |
9561 | } | |
9562 | ||
2288d419 | 9563 | /* Whether the vdev or any of its descendants are being initialized/trimmed. */ |
e60e158e | 9564 | static boolean_t |
2288d419 | 9565 | spa_vdev_activity_in_progress_impl(vdev_t *vd, zpool_wait_activity_t activity) |
e60e158e JG |
9566 | { |
9567 | spa_t *spa = vd->vdev_spa; | |
e60e158e JG |
9568 | |
9569 | ASSERT(spa_config_held(spa, SCL_CONFIG | SCL_STATE, RW_READER)); | |
9570 | ASSERT(MUTEX_HELD(&spa->spa_activities_lock)); | |
2288d419 BB |
9571 | ASSERT(activity == ZPOOL_WAIT_INITIALIZE || |
9572 | activity == ZPOOL_WAIT_TRIM); | |
9573 | ||
9574 | kmutex_t *lock = activity == ZPOOL_WAIT_INITIALIZE ? | |
9575 | &vd->vdev_initialize_lock : &vd->vdev_trim_lock; | |
e60e158e JG |
9576 | |
9577 | mutex_exit(&spa->spa_activities_lock); | |
2288d419 | 9578 | mutex_enter(lock); |
e60e158e JG |
9579 | mutex_enter(&spa->spa_activities_lock); |
9580 | ||
2288d419 BB |
9581 | boolean_t in_progress = (activity == ZPOOL_WAIT_INITIALIZE) ? |
9582 | (vd->vdev_initialize_state == VDEV_INITIALIZE_ACTIVE) : | |
9583 | (vd->vdev_trim_state == VDEV_TRIM_ACTIVE); | |
9584 | mutex_exit(lock); | |
e60e158e | 9585 | |
2288d419 | 9586 | if (in_progress) |
e60e158e JG |
9587 | return (B_TRUE); |
9588 | ||
9589 | for (int i = 0; i < vd->vdev_children; i++) { | |
2288d419 BB |
9590 | if (spa_vdev_activity_in_progress_impl(vd->vdev_child[i], |
9591 | activity)) | |
e60e158e JG |
9592 | return (B_TRUE); |
9593 | } | |
9594 | ||
9595 | return (B_FALSE); | |
9596 | } | |
9597 | ||
9598 | /* | |
9599 | * If use_guid is true, this checks whether the vdev specified by guid is | |
2288d419 BB |
9600 | * being initialized/trimmed. Otherwise, it checks whether any vdev in the pool |
9601 | * is being initialized/trimmed. The caller must hold the config lock and | |
9602 | * spa_activities_lock. | |
e60e158e JG |
9603 | */ |
9604 | static int | |
2288d419 BB |
9605 | spa_vdev_activity_in_progress(spa_t *spa, boolean_t use_guid, uint64_t guid, |
9606 | zpool_wait_activity_t activity, boolean_t *in_progress) | |
e60e158e JG |
9607 | { |
9608 | mutex_exit(&spa->spa_activities_lock); | |
9609 | spa_config_enter(spa, SCL_CONFIG | SCL_STATE, FTAG, RW_READER); | |
9610 | mutex_enter(&spa->spa_activities_lock); | |
9611 | ||
9612 | vdev_t *vd; | |
9613 | if (use_guid) { | |
9614 | vd = spa_lookup_by_guid(spa, guid, B_FALSE); | |
9615 | if (vd == NULL || !vd->vdev_ops->vdev_op_leaf) { | |
9616 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
9617 | return (EINVAL); | |
9618 | } | |
9619 | } else { | |
9620 | vd = spa->spa_root_vdev; | |
9621 | } | |
9622 | ||
2288d419 | 9623 | *in_progress = spa_vdev_activity_in_progress_impl(vd, activity); |
e60e158e JG |
9624 | |
9625 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
9626 | return (0); | |
9627 | } | |
9628 | ||
9629 | /* | |
9630 | * Locking for waiting threads | |
9631 | * --------------------------- | |
9632 | * | |
9633 | * Waiting threads need a way to check whether a given activity is in progress, | |
9634 | * and then, if it is, wait for it to complete. Each activity will have some | |
9635 | * in-memory representation of the relevant on-disk state which can be used to | |
9636 | * determine whether or not the activity is in progress. The in-memory state and | |
9637 | * the locking used to protect it will be different for each activity, and may | |
9638 | * not be suitable for use with a cvar (e.g., some state is protected by the | |
9639 | * config lock). To allow waiting threads to wait without any races, another | |
9640 | * lock, spa_activities_lock, is used. | |
9641 | * | |
9642 | * When the state is checked, both the activity-specific lock (if there is one) | |
9643 | * and spa_activities_lock are held. In some cases, the activity-specific lock | |
9644 | * is acquired explicitly (e.g. the config lock). In others, the locking is | |
9645 | * internal to some check (e.g. bpobj_is_empty). After checking, the waiting | |
9646 | * thread releases the activity-specific lock and, if the activity is in | |
9647 | * progress, then cv_waits using spa_activities_lock. | |
9648 | * | |
9649 | * The waiting thread is woken when another thread, one completing some | |
9650 | * activity, updates the state of the activity and then calls | |
9651 | * spa_notify_waiters, which will cv_broadcast. This 'completing' thread only | |
9652 | * needs to hold its activity-specific lock when updating the state, and this | |
9653 | * lock can (but doesn't have to) be dropped before calling spa_notify_waiters. | |
9654 | * | |
9655 | * Because spa_notify_waiters acquires spa_activities_lock before broadcasting, | |
9656 | * and because it is held when the waiting thread checks the state of the | |
9657 | * activity, it can never be the case that the completing thread both updates | |
9658 | * the activity state and cv_broadcasts in between the waiting thread's check | |
9659 | * and cv_wait. Thus, a waiting thread can never miss a wakeup. | |
9660 | * | |
9661 | * In order to prevent deadlock, when the waiting thread does its check, in some | |
9662 | * cases it will temporarily drop spa_activities_lock in order to acquire the | |
9663 | * activity-specific lock. The order in which spa_activities_lock and the | |
9664 | * activity specific lock are acquired in the waiting thread is determined by | |
9665 | * the order in which they are acquired in the completing thread; if the | |
9666 | * completing thread calls spa_notify_waiters with the activity-specific lock | |
9667 | * held, then the waiting thread must also acquire the activity-specific lock | |
9668 | * first. | |
9669 | */ | |
9670 | ||
9671 | static int | |
9672 | spa_activity_in_progress(spa_t *spa, zpool_wait_activity_t activity, | |
9673 | boolean_t use_tag, uint64_t tag, boolean_t *in_progress) | |
9674 | { | |
9675 | int error = 0; | |
9676 | ||
9677 | ASSERT(MUTEX_HELD(&spa->spa_activities_lock)); | |
9678 | ||
9679 | switch (activity) { | |
9680 | case ZPOOL_WAIT_CKPT_DISCARD: | |
9681 | *in_progress = | |
9682 | (spa_feature_is_active(spa, SPA_FEATURE_POOL_CHECKPOINT) && | |
9683 | zap_contains(spa_meta_objset(spa), | |
9684 | DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_ZPOOL_CHECKPOINT) == | |
9685 | ENOENT); | |
9686 | break; | |
9687 | case ZPOOL_WAIT_FREE: | |
9688 | *in_progress = ((spa_version(spa) >= SPA_VERSION_DEADLISTS && | |
9689 | !bpobj_is_empty(&spa->spa_dsl_pool->dp_free_bpobj)) || | |
9690 | spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY) || | |
9691 | spa_livelist_delete_check(spa)); | |
9692 | break; | |
9693 | case ZPOOL_WAIT_INITIALIZE: | |
2288d419 BB |
9694 | case ZPOOL_WAIT_TRIM: |
9695 | error = spa_vdev_activity_in_progress(spa, use_tag, tag, | |
9696 | activity, in_progress); | |
e60e158e JG |
9697 | break; |
9698 | case ZPOOL_WAIT_REPLACE: | |
9699 | mutex_exit(&spa->spa_activities_lock); | |
9700 | spa_config_enter(spa, SCL_CONFIG | SCL_STATE, FTAG, RW_READER); | |
9701 | mutex_enter(&spa->spa_activities_lock); | |
9702 | ||
9703 | *in_progress = vdev_replace_in_progress(spa->spa_root_vdev); | |
9704 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
9705 | break; | |
9706 | case ZPOOL_WAIT_REMOVE: | |
9707 | *in_progress = (spa->spa_removing_phys.sr_state == | |
9708 | DSS_SCANNING); | |
9709 | break; | |
9710 | case ZPOOL_WAIT_RESILVER: | |
9a49d3f3 BB |
9711 | if ((*in_progress = vdev_rebuild_active(spa->spa_root_vdev))) |
9712 | break; | |
6954c22f | 9713 | fallthrough; |
e60e158e JG |
9714 | case ZPOOL_WAIT_SCRUB: |
9715 | { | |
9716 | boolean_t scanning, paused, is_scrub; | |
9717 | dsl_scan_t *scn = spa->spa_dsl_pool->dp_scan; | |
9718 | ||
9719 | is_scrub = (scn->scn_phys.scn_func == POOL_SCAN_SCRUB); | |
9720 | scanning = (scn->scn_phys.scn_state == DSS_SCANNING); | |
9721 | paused = dsl_scan_is_paused_scrub(scn); | |
9722 | *in_progress = (scanning && !paused && | |
9723 | is_scrub == (activity == ZPOOL_WAIT_SCRUB)); | |
9724 | break; | |
9725 | } | |
9726 | default: | |
9727 | panic("unrecognized value for activity %d", activity); | |
9728 | } | |
9729 | ||
9730 | return (error); | |
9731 | } | |
9732 | ||
9733 | static int | |
9734 | spa_wait_common(const char *pool, zpool_wait_activity_t activity, | |
9735 | boolean_t use_tag, uint64_t tag, boolean_t *waited) | |
9736 | { | |
9737 | /* | |
9738 | * The tag is used to distinguish between instances of an activity. | |
2288d419 BB |
9739 | * 'initialize' and 'trim' are the only activities that we use this for. |
9740 | * The other activities can only have a single instance in progress in a | |
9741 | * pool at one time, making the tag unnecessary. | |
e60e158e JG |
9742 | * |
9743 | * There can be multiple devices being replaced at once, but since they | |
9744 | * all finish once resilvering finishes, we don't bother keeping track | |
9745 | * of them individually, we just wait for them all to finish. | |
9746 | */ | |
2288d419 BB |
9747 | if (use_tag && activity != ZPOOL_WAIT_INITIALIZE && |
9748 | activity != ZPOOL_WAIT_TRIM) | |
e60e158e JG |
9749 | return (EINVAL); |
9750 | ||
9751 | if (activity < 0 || activity >= ZPOOL_WAIT_NUM_ACTIVITIES) | |
9752 | return (EINVAL); | |
9753 | ||
9754 | spa_t *spa; | |
9755 | int error = spa_open(pool, &spa, FTAG); | |
9756 | if (error != 0) | |
9757 | return (error); | |
9758 | ||
9759 | /* | |
9760 | * Increment the spa's waiter count so that we can call spa_close and | |
9761 | * still ensure that the spa_t doesn't get freed before this thread is | |
9762 | * finished with it when the pool is exported. We want to call spa_close | |
9763 | * before we start waiting because otherwise the additional ref would | |
9764 | * prevent the pool from being exported or destroyed throughout the | |
9765 | * potentially long wait. | |
9766 | */ | |
9767 | mutex_enter(&spa->spa_activities_lock); | |
9768 | spa->spa_waiters++; | |
9769 | spa_close(spa, FTAG); | |
9770 | ||
9771 | *waited = B_FALSE; | |
9772 | for (;;) { | |
9773 | boolean_t in_progress; | |
9774 | error = spa_activity_in_progress(spa, activity, use_tag, tag, | |
9775 | &in_progress); | |
9776 | ||
b24771a8 | 9777 | if (error || !in_progress || spa->spa_waiters_cancel) |
e60e158e JG |
9778 | break; |
9779 | ||
9780 | *waited = B_TRUE; | |
9781 | ||
9782 | if (cv_wait_sig(&spa->spa_activities_cv, | |
9783 | &spa->spa_activities_lock) == 0) { | |
9784 | error = EINTR; | |
9785 | break; | |
9786 | } | |
9787 | } | |
9788 | ||
9789 | spa->spa_waiters--; | |
9790 | cv_signal(&spa->spa_waiters_cv); | |
9791 | mutex_exit(&spa->spa_activities_lock); | |
9792 | ||
9793 | return (error); | |
9794 | } | |
9795 | ||
9796 | /* | |
9797 | * Wait for a particular instance of the specified activity to complete, where | |
9798 | * the instance is identified by 'tag' | |
9799 | */ | |
9800 | int | |
9801 | spa_wait_tag(const char *pool, zpool_wait_activity_t activity, uint64_t tag, | |
9802 | boolean_t *waited) | |
9803 | { | |
9804 | return (spa_wait_common(pool, activity, B_TRUE, tag, waited)); | |
9805 | } | |
9806 | ||
9807 | /* | |
9808 | * Wait for all instances of the specified activity complete | |
9809 | */ | |
9810 | int | |
9811 | spa_wait(const char *pool, zpool_wait_activity_t activity, boolean_t *waited) | |
9812 | { | |
9813 | ||
9814 | return (spa_wait_common(pool, activity, B_FALSE, 0, waited)); | |
9815 | } | |
9816 | ||
a1d477c2 | 9817 | sysevent_t * |
12fa0466 DE |
9818 | spa_event_create(spa_t *spa, vdev_t *vd, nvlist_t *hist_nvl, const char *name) |
9819 | { | |
9820 | sysevent_t *ev = NULL; | |
9821 | #ifdef _KERNEL | |
9822 | nvlist_t *resource; | |
9823 | ||
9824 | resource = zfs_event_create(spa, vd, FM_SYSEVENT_CLASS, name, hist_nvl); | |
9825 | if (resource) { | |
9826 | ev = kmem_alloc(sizeof (sysevent_t), KM_SLEEP); | |
9827 | ev->resource = resource; | |
9828 | } | |
9829 | #endif | |
9830 | return (ev); | |
9831 | } | |
9832 | ||
a1d477c2 | 9833 | void |
12fa0466 DE |
9834 | spa_event_post(sysevent_t *ev) |
9835 | { | |
9836 | #ifdef _KERNEL | |
9837 | if (ev) { | |
9838 | zfs_zevent_post(ev->resource, NULL, zfs_zevent_post_cb); | |
9839 | kmem_free(ev, sizeof (*ev)); | |
9840 | } | |
9841 | #endif | |
9842 | } | |
9843 | ||
34dc7c2f | 9844 | /* |
fb390aaf HR |
9845 | * Post a zevent corresponding to the given sysevent. The 'name' must be one |
9846 | * of the event definitions in sys/sysevent/eventdefs.h. The payload will be | |
34dc7c2f BB |
9847 | * filled in from the spa and (optionally) the vdev. This doesn't do anything |
9848 | * in the userland libzpool, as we don't want consumers to misinterpret ztest | |
9849 | * or zdb as real changes. | |
9850 | */ | |
9851 | void | |
12fa0466 | 9852 | spa_event_notify(spa_t *spa, vdev_t *vd, nvlist_t *hist_nvl, const char *name) |
34dc7c2f | 9853 | { |
12fa0466 | 9854 | spa_event_post(spa_event_create(spa, vd, hist_nvl, name)); |
34dc7c2f | 9855 | } |
c28b2279 | 9856 | |
c28b2279 BB |
9857 | /* state manipulation functions */ |
9858 | EXPORT_SYMBOL(spa_open); | |
9859 | EXPORT_SYMBOL(spa_open_rewind); | |
9860 | EXPORT_SYMBOL(spa_get_stats); | |
9861 | EXPORT_SYMBOL(spa_create); | |
c28b2279 BB |
9862 | EXPORT_SYMBOL(spa_import); |
9863 | EXPORT_SYMBOL(spa_tryimport); | |
9864 | EXPORT_SYMBOL(spa_destroy); | |
9865 | EXPORT_SYMBOL(spa_export); | |
9866 | EXPORT_SYMBOL(spa_reset); | |
9867 | EXPORT_SYMBOL(spa_async_request); | |
9868 | EXPORT_SYMBOL(spa_async_suspend); | |
9869 | EXPORT_SYMBOL(spa_async_resume); | |
9870 | EXPORT_SYMBOL(spa_inject_addref); | |
9871 | EXPORT_SYMBOL(spa_inject_delref); | |
9872 | EXPORT_SYMBOL(spa_scan_stat_init); | |
9873 | EXPORT_SYMBOL(spa_scan_get_stats); | |
9874 | ||
e1cfd73f | 9875 | /* device manipulation */ |
c28b2279 BB |
9876 | EXPORT_SYMBOL(spa_vdev_add); |
9877 | EXPORT_SYMBOL(spa_vdev_attach); | |
9878 | EXPORT_SYMBOL(spa_vdev_detach); | |
c28b2279 BB |
9879 | EXPORT_SYMBOL(spa_vdev_setpath); |
9880 | EXPORT_SYMBOL(spa_vdev_setfru); | |
9881 | EXPORT_SYMBOL(spa_vdev_split_mirror); | |
9882 | ||
9883 | /* spare statech is global across all pools) */ | |
9884 | EXPORT_SYMBOL(spa_spare_add); | |
9885 | EXPORT_SYMBOL(spa_spare_remove); | |
9886 | EXPORT_SYMBOL(spa_spare_exists); | |
9887 | EXPORT_SYMBOL(spa_spare_activate); | |
9888 | ||
9889 | /* L2ARC statech is global across all pools) */ | |
9890 | EXPORT_SYMBOL(spa_l2cache_add); | |
9891 | EXPORT_SYMBOL(spa_l2cache_remove); | |
9892 | EXPORT_SYMBOL(spa_l2cache_exists); | |
9893 | EXPORT_SYMBOL(spa_l2cache_activate); | |
9894 | EXPORT_SYMBOL(spa_l2cache_drop); | |
9895 | ||
9896 | /* scanning */ | |
9897 | EXPORT_SYMBOL(spa_scan); | |
9898 | EXPORT_SYMBOL(spa_scan_stop); | |
9899 | ||
9900 | /* spa syncing */ | |
9901 | EXPORT_SYMBOL(spa_sync); /* only for DMU use */ | |
9902 | EXPORT_SYMBOL(spa_sync_allpools); | |
9903 | ||
9904 | /* properties */ | |
9905 | EXPORT_SYMBOL(spa_prop_set); | |
9906 | EXPORT_SYMBOL(spa_prop_get); | |
9907 | EXPORT_SYMBOL(spa_prop_clear_bootfs); | |
9908 | ||
9909 | /* asynchronous event notification */ | |
9910 | EXPORT_SYMBOL(spa_event_notify); | |
dea377c0 | 9911 | |
c8242a96 | 9912 | /* BEGIN CSTYLED */ |
03fdcb9a | 9913 | ZFS_MODULE_PARAM(zfs_spa, spa_, load_verify_shift, INT, ZMOD_RW, |
458f8231 | 9914 | "log2 fraction of arc that can be used by inflight I/Os when " |
03fdcb9a | 9915 | "verifying pool during import"); |
dea377c0 | 9916 | |
03fdcb9a | 9917 | ZFS_MODULE_PARAM(zfs_spa, spa_, load_verify_metadata, INT, ZMOD_RW, |
dea377c0 MA |
9918 | "Set to traverse metadata on pool import"); |
9919 | ||
03fdcb9a | 9920 | ZFS_MODULE_PARAM(zfs_spa, spa_, load_verify_data, INT, ZMOD_RW, |
dea377c0 | 9921 | "Set to traverse data on pool import"); |
dcb6bed1 | 9922 | |
03fdcb9a | 9923 | ZFS_MODULE_PARAM(zfs_spa, spa_, load_print_vdev_tree, INT, ZMOD_RW, |
6cb8e530 PZ |
9924 | "Print vdev tree to zfs_dbgmsg during pool import"); |
9925 | ||
03fdcb9a | 9926 | ZFS_MODULE_PARAM(zfs_zio, zio_, taskq_batch_pct, UINT, ZMOD_RD, |
dcb6bed1 D |
9927 | "Percentage of CPUs to run an IO worker thread"); |
9928 | ||
7457b024 AM |
9929 | ZFS_MODULE_PARAM(zfs_zio, zio_, taskq_batch_tpq, UINT, ZMOD_RD, |
9930 | "Number of threads per IO worker taskqueue"); | |
9931 | ||
03fdcb9a MM |
9932 | ZFS_MODULE_PARAM(zfs, zfs_, max_missing_tvds, ULONG, ZMOD_RW, |
9933 | "Allow importing pool with up to this number of missing top-level " | |
9934 | "vdevs (in read-only mode)"); | |
6cb8e530 | 9935 | |
03fdcb9a | 9936 | ZFS_MODULE_PARAM(zfs_livelist_condense, zfs_livelist_condense_, zthr_pause, INT, ZMOD_RW, |
37f03da8 | 9937 | "Set the livelist condense zthr to pause"); |
03fdcb9a MM |
9938 | |
9939 | ZFS_MODULE_PARAM(zfs_livelist_condense, zfs_livelist_condense_, sync_pause, INT, ZMOD_RW, | |
37f03da8 SH |
9940 | "Set the livelist condense synctask to pause"); |
9941 | ||
03fdcb9a | 9942 | ZFS_MODULE_PARAM(zfs_livelist_condense, zfs_livelist_condense_, sync_cancel, INT, ZMOD_RW, |
37f03da8 | 9943 | "Whether livelist condensing was canceled in the synctask"); |
03fdcb9a MM |
9944 | |
9945 | ZFS_MODULE_PARAM(zfs_livelist_condense, zfs_livelist_condense_, zthr_cancel, INT, ZMOD_RW, | |
37f03da8 SH |
9946 | "Whether livelist condensing was canceled in the zthr function"); |
9947 | ||
03fdcb9a MM |
9948 | ZFS_MODULE_PARAM(zfs_livelist_condense, zfs_livelist_condense_, new_alloc, INT, ZMOD_RW, |
9949 | "Whether extra ALLOC blkptrs were added to a livelist entry while it " | |
9950 | "was being condensed"); | |
37f03da8 | 9951 | /* END CSTYLED */ |