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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 | |
1d3ba0bf | 9 | * or https://opensource.org/licenses/CDDL-1.0. |
34dc7c2f BB |
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> |
9d618615 | 36 | * Copyright (c) 2023 Hewlett Packard Enterprise Development LP. |
a38718a6 | 37 | */ |
34dc7c2f | 38 | |
34dc7c2f | 39 | /* |
e49f1e20 WA |
40 | * SPA: Storage Pool Allocator |
41 | * | |
34dc7c2f BB |
42 | * This file contains all the routines used when modifying on-disk SPA state. |
43 | * This includes opening, importing, destroying, exporting a pool, and syncing a | |
44 | * pool. | |
45 | */ | |
46 | ||
47 | #include <sys/zfs_context.h> | |
48 | #include <sys/fm/fs/zfs.h> | |
49 | #include <sys/spa_impl.h> | |
50 | #include <sys/zio.h> | |
51 | #include <sys/zio_checksum.h> | |
34dc7c2f BB |
52 | #include <sys/dmu.h> |
53 | #include <sys/dmu_tx.h> | |
54 | #include <sys/zap.h> | |
55 | #include <sys/zil.h> | |
67a1b037 | 56 | #include <sys/brt.h> |
428870ff | 57 | #include <sys/ddt.h> |
34dc7c2f | 58 | #include <sys/vdev_impl.h> |
a1d477c2 MA |
59 | #include <sys/vdev_removal.h> |
60 | #include <sys/vdev_indirect_mapping.h> | |
61 | #include <sys/vdev_indirect_births.h> | |
619f0976 | 62 | #include <sys/vdev_initialize.h> |
9a49d3f3 | 63 | #include <sys/vdev_rebuild.h> |
1b939560 | 64 | #include <sys/vdev_trim.h> |
c28b2279 | 65 | #include <sys/vdev_disk.h> |
5caeef02 | 66 | #include <sys/vdev_raidz.h> |
b2255edc | 67 | #include <sys/vdev_draid.h> |
34dc7c2f | 68 | #include <sys/metaslab.h> |
428870ff | 69 | #include <sys/metaslab_impl.h> |
379ca9cf | 70 | #include <sys/mmp.h> |
34dc7c2f BB |
71 | #include <sys/uberblock_impl.h> |
72 | #include <sys/txg.h> | |
73 | #include <sys/avl.h> | |
a1d477c2 | 74 | #include <sys/bpobj.h> |
34dc7c2f BB |
75 | #include <sys/dmu_traverse.h> |
76 | #include <sys/dmu_objset.h> | |
77 | #include <sys/unique.h> | |
78 | #include <sys/dsl_pool.h> | |
79 | #include <sys/dsl_dataset.h> | |
80 | #include <sys/dsl_dir.h> | |
81 | #include <sys/dsl_prop.h> | |
82 | #include <sys/dsl_synctask.h> | |
83 | #include <sys/fs/zfs.h> | |
84 | #include <sys/arc.h> | |
85 | #include <sys/callb.h> | |
86 | #include <sys/systeminfo.h> | |
9babb374 | 87 | #include <sys/zfs_ioctl.h> |
428870ff | 88 | #include <sys/dsl_scan.h> |
9ae529ec | 89 | #include <sys/zfeature.h> |
13fe0198 | 90 | #include <sys/dsl_destroy.h> |
526af785 | 91 | #include <sys/zvol.h> |
34dc7c2f | 92 | |
d164b209 | 93 | #ifdef _KERNEL |
12fa0466 DE |
94 | #include <sys/fm/protocol.h> |
95 | #include <sys/fm/util.h> | |
428870ff | 96 | #include <sys/callb.h> |
d164b209 | 97 | #include <sys/zone.h> |
c8242a96 | 98 | #include <sys/vmsystm.h> |
d164b209 BB |
99 | #endif /* _KERNEL */ |
100 | ||
34dc7c2f BB |
101 | #include "zfs_prop.h" |
102 | #include "zfs_comutil.h" | |
3bd4df38 | 103 | #include <cityhash.h> |
34dc7c2f | 104 | |
b5e60918 RN |
105 | /* |
106 | * spa_thread() existed on Illumos as a parent thread for the various worker | |
107 | * threads that actually run the pool, as a way to both reference the entire | |
108 | * pool work as a single object, and to share properties like scheduling | |
109 | * options. It has not yet been adapted to Linux or FreeBSD. This define is | |
110 | * used to mark related parts of the code to make things easier for the reader, | |
111 | * and to compile this code out. It can be removed when someone implements it, | |
112 | * moves it to some Illumos-specific place, or removes it entirely. | |
113 | */ | |
114 | #undef HAVE_SPA_THREAD | |
115 | ||
116 | /* | |
117 | * The "System Duty Cycle" scheduling class is an Illumos feature to help | |
118 | * prevent CPU-intensive kernel threads from affecting latency on interactive | |
119 | * threads. It doesn't exist on Linux or FreeBSD, so the supporting code is | |
120 | * gated behind a define. On Illumos SDC depends on spa_thread(), but | |
121 | * spa_thread() also has other uses, so this is a separate define. | |
122 | */ | |
123 | #undef HAVE_SYSDC | |
124 | ||
e6cfd633 WA |
125 | /* |
126 | * The interval, in seconds, at which failed configuration cache file writes | |
127 | * should be retried. | |
128 | */ | |
a1d477c2 | 129 | int zfs_ccw_retry_interval = 300; |
e6cfd633 | 130 | |
428870ff | 131 | typedef enum zti_modes { |
7ef5e54e | 132 | ZTI_MODE_FIXED, /* value is # of threads (min 1) */ |
7457b024 | 133 | ZTI_MODE_SCALE, /* Taskqs scale with CPUs. */ |
3bd4df38 | 134 | ZTI_MODE_SYNC, /* sync thread assigned */ |
7ef5e54e AL |
135 | ZTI_MODE_NULL, /* don't create a taskq */ |
136 | ZTI_NMODES | |
428870ff | 137 | } zti_modes_t; |
34dc7c2f | 138 | |
7ef5e54e AL |
139 | #define ZTI_P(n, q) { ZTI_MODE_FIXED, (n), (q) } |
140 | #define ZTI_PCT(n) { ZTI_MODE_ONLINE_PERCENT, (n), 1 } | |
7457b024 | 141 | #define ZTI_SCALE { ZTI_MODE_SCALE, 0, 1 } |
3bd4df38 | 142 | #define ZTI_SYNC { ZTI_MODE_SYNC, 0, 1 } |
7ef5e54e | 143 | #define ZTI_NULL { ZTI_MODE_NULL, 0, 0 } |
9babb374 | 144 | |
7ef5e54e AL |
145 | #define ZTI_N(n) ZTI_P(n, 1) |
146 | #define ZTI_ONE ZTI_N(1) | |
9babb374 BB |
147 | |
148 | typedef struct zio_taskq_info { | |
7ef5e54e | 149 | zti_modes_t zti_mode; |
428870ff | 150 | uint_t zti_value; |
7ef5e54e | 151 | uint_t zti_count; |
9babb374 BB |
152 | } zio_taskq_info_t; |
153 | ||
154 | static const char *const zio_taskq_types[ZIO_TASKQ_TYPES] = { | |
451041db | 155 | "iss", "iss_h", "int", "int_h" |
9babb374 BB |
156 | }; |
157 | ||
428870ff | 158 | /* |
7ef5e54e AL |
159 | * This table defines the taskq settings for each ZFS I/O type. When |
160 | * initializing a pool, we use this table to create an appropriately sized | |
161 | * taskq. Some operations are low volume and therefore have a small, static | |
162 | * number of threads assigned to their taskqs using the ZTI_N(#) or ZTI_ONE | |
3bd4df38 | 163 | * macros. Other operations process a large amount of data; the ZTI_SCALE |
7ef5e54e | 164 | * macro causes us to create a taskq oriented for throughput. Some operations |
1b939560 | 165 | * are so high frequency and short-lived that the taskq itself can become a |
7ef5e54e AL |
166 | * point of lock contention. The ZTI_P(#, #) macro indicates that we need an |
167 | * additional degree of parallelism specified by the number of threads per- | |
168 | * taskq and the number of taskqs; when dispatching an event in this case, the | |
3bd4df38 EN |
169 | * particular taskq is chosen at random. ZTI_SCALE uses a number of taskqs |
170 | * that scales with the number of CPUs. | |
7ef5e54e AL |
171 | * |
172 | * The different taskq priorities are to handle the different contexts (issue | |
173 | * and interrupt) and then to reserve threads for ZIO_PRIORITY_NOW I/Os that | |
174 | * need to be handled with minimum delay. | |
428870ff | 175 | */ |
6930ecbb | 176 | static zio_taskq_info_t zio_taskqs[ZIO_TYPES][ZIO_TASKQ_TYPES] = { |
428870ff | 177 | /* ISSUE ISSUE_HIGH INTR INTR_HIGH */ |
7ef5e54e | 178 | { ZTI_ONE, ZTI_NULL, ZTI_ONE, ZTI_NULL }, /* NULL */ |
7457b024 | 179 | { ZTI_N(8), ZTI_NULL, ZTI_SCALE, ZTI_NULL }, /* READ */ |
3bd4df38 | 180 | { ZTI_SYNC, ZTI_N(5), ZTI_SCALE, ZTI_N(5) }, /* WRITE */ |
7457b024 | 181 | { ZTI_SCALE, ZTI_NULL, ZTI_ONE, ZTI_NULL }, /* FREE */ |
7ef5e54e AL |
182 | { ZTI_ONE, ZTI_NULL, ZTI_ONE, ZTI_NULL }, /* CLAIM */ |
183 | { ZTI_ONE, ZTI_NULL, ZTI_ONE, ZTI_NULL }, /* IOCTL */ | |
1b939560 | 184 | { ZTI_N(4), ZTI_NULL, ZTI_ONE, ZTI_NULL }, /* TRIM */ |
9babb374 BB |
185 | }; |
186 | ||
13fe0198 MA |
187 | static void spa_sync_version(void *arg, dmu_tx_t *tx); |
188 | static void spa_sync_props(void *arg, dmu_tx_t *tx); | |
b128c09f | 189 | static boolean_t spa_has_active_shared_spare(spa_t *spa); |
a926aab9 AZ |
190 | static int spa_load_impl(spa_t *spa, spa_import_type_t type, |
191 | const char **ereport); | |
572e2857 | 192 | static void spa_vdev_resilver_done(spa_t *spa); |
428870ff | 193 | |
342357cd AM |
194 | /* |
195 | * Percentage of all CPUs that can be used by the metaslab preload taskq. | |
196 | */ | |
197 | static uint_t metaslab_preload_pct = 50; | |
198 | ||
18168da7 AZ |
199 | static uint_t zio_taskq_batch_pct = 80; /* 1 thread per cpu in pset */ |
200 | static uint_t zio_taskq_batch_tpq; /* threads per taskq */ | |
b5e60918 RN |
201 | |
202 | #ifdef HAVE_SYSDC | |
18168da7 AZ |
203 | static const boolean_t zio_taskq_sysdc = B_TRUE; /* use SDC scheduling class */ |
204 | static const uint_t zio_taskq_basedc = 80; /* base duty cycle */ | |
b5e60918 | 205 | #endif |
428870ff | 206 | |
b5e60918 | 207 | #ifdef HAVE_SPA_THREAD |
18168da7 | 208 | static const boolean_t spa_create_process = B_TRUE; /* no process => no sysdc */ |
b5e60918 | 209 | #endif |
428870ff | 210 | |
3bd4df38 EN |
211 | static uint_t zio_taskq_wr_iss_ncpus = 0; |
212 | ||
afd2f7b7 PZ |
213 | /* |
214 | * Report any spa_load_verify errors found, but do not fail spa_load. | |
215 | * This is used by zdb to analyze non-idle pools. | |
216 | */ | |
217 | boolean_t spa_load_verify_dryrun = B_FALSE; | |
218 | ||
e39fe05b FU |
219 | /* |
220 | * Allow read spacemaps in case of readonly import (spa_mode == SPA_MODE_READ). | |
221 | * This is used by zdb for spacemaps verification. | |
222 | */ | |
223 | boolean_t spa_mode_readable_spacemaps = B_FALSE; | |
224 | ||
428870ff BB |
225 | /* |
226 | * This (illegal) pool name is used when temporarily importing a spa_t in order | |
227 | * to get the vdev stats associated with the imported devices. | |
228 | */ | |
229 | #define TRYIMPORT_NAME "$import" | |
34dc7c2f | 230 | |
6cb8e530 PZ |
231 | /* |
232 | * For debugging purposes: print out vdev tree during pool import. | |
233 | */ | |
18168da7 | 234 | static int spa_load_print_vdev_tree = B_FALSE; |
6cb8e530 PZ |
235 | |
236 | /* | |
237 | * A non-zero value for zfs_max_missing_tvds means that we allow importing | |
238 | * pools with missing top-level vdevs. This is strictly intended for advanced | |
239 | * pool recovery cases since missing data is almost inevitable. Pools with | |
240 | * missing devices can only be imported read-only for safety reasons, and their | |
241 | * fail-mode will be automatically set to "continue". | |
242 | * | |
243 | * With 1 missing vdev we should be able to import the pool and mount all | |
244 | * datasets. User data that was not modified after the missing device has been | |
245 | * added should be recoverable. This means that snapshots created prior to the | |
246 | * addition of that device should be completely intact. | |
247 | * | |
248 | * With 2 missing vdevs, some datasets may fail to mount since there are | |
249 | * dataset statistics that are stored as regular metadata. Some data might be | |
250 | * recoverable if those vdevs were added recently. | |
251 | * | |
252 | * With 3 or more missing vdevs, the pool is severely damaged and MOS entries | |
253 | * may be missing entirely. Chances of data recovery are very low. Note that | |
254 | * there are also risks of performing an inadvertent rewind as we might be | |
255 | * missing all the vdevs with the latest uberblocks. | |
256 | */ | |
ab8d9c17 | 257 | uint64_t zfs_max_missing_tvds = 0; |
6cb8e530 PZ |
258 | |
259 | /* | |
260 | * The parameters below are similar to zfs_max_missing_tvds but are only | |
261 | * intended for a preliminary open of the pool with an untrusted config which | |
262 | * might be incomplete or out-dated. | |
263 | * | |
264 | * We are more tolerant for pools opened from a cachefile since we could have | |
265 | * an out-dated cachefile where a device removal was not registered. | |
266 | * We could have set the limit arbitrarily high but in the case where devices | |
267 | * are really missing we would want to return the proper error codes; we chose | |
268 | * SPA_DVAS_PER_BP - 1 so that some copies of the MOS would still be available | |
269 | * and we get a chance to retrieve the trusted config. | |
270 | */ | |
271 | uint64_t zfs_max_missing_tvds_cachefile = SPA_DVAS_PER_BP - 1; | |
d2734cce | 272 | |
6cb8e530 PZ |
273 | /* |
274 | * In the case where config was assembled by scanning device paths (/dev/dsks | |
275 | * by default) we are less tolerant since all the existing devices should have | |
276 | * been detected and we want spa_load to return the right error codes. | |
277 | */ | |
278 | uint64_t zfs_max_missing_tvds_scan = 0; | |
279 | ||
d2734cce SD |
280 | /* |
281 | * Debugging aid that pauses spa_sync() towards the end. | |
282 | */ | |
18168da7 | 283 | static const boolean_t zfs_pause_spa_sync = B_FALSE; |
d2734cce | 284 | |
37f03da8 SH |
285 | /* |
286 | * Variables to indicate the livelist condense zthr func should wait at certain | |
287 | * points for the livelist to be removed - used to test condense/destroy races | |
288 | */ | |
18168da7 AZ |
289 | static int zfs_livelist_condense_zthr_pause = 0; |
290 | static int zfs_livelist_condense_sync_pause = 0; | |
37f03da8 SH |
291 | |
292 | /* | |
293 | * Variables to track whether or not condense cancellation has been | |
294 | * triggered in testing. | |
295 | */ | |
18168da7 AZ |
296 | static int zfs_livelist_condense_sync_cancel = 0; |
297 | static int zfs_livelist_condense_zthr_cancel = 0; | |
37f03da8 SH |
298 | |
299 | /* | |
300 | * Variable to track whether or not extra ALLOC blkptrs were added to a | |
301 | * livelist entry while it was being condensed (caused by the way we track | |
302 | * remapped blkptrs in dbuf_remap_impl) | |
303 | */ | |
18168da7 | 304 | static int zfs_livelist_condense_new_alloc = 0; |
37f03da8 | 305 | |
34dc7c2f BB |
306 | /* |
307 | * ========================================================================== | |
308 | * SPA properties routines | |
309 | * ========================================================================== | |
310 | */ | |
311 | ||
312 | /* | |
313 | * Add a (source=src, propname=propval) list to an nvlist. | |
314 | */ | |
315 | static void | |
a926aab9 | 316 | spa_prop_add_list(nvlist_t *nvl, zpool_prop_t prop, const char *strval, |
34dc7c2f BB |
317 | uint64_t intval, zprop_source_t src) |
318 | { | |
319 | const char *propname = zpool_prop_to_name(prop); | |
320 | nvlist_t *propval; | |
321 | ||
65ad5d11 AJ |
322 | propval = fnvlist_alloc(); |
323 | fnvlist_add_uint64(propval, ZPROP_SOURCE, src); | |
34dc7c2f BB |
324 | |
325 | if (strval != NULL) | |
65ad5d11 | 326 | fnvlist_add_string(propval, ZPROP_VALUE, strval); |
34dc7c2f | 327 | else |
65ad5d11 | 328 | fnvlist_add_uint64(propval, ZPROP_VALUE, intval); |
34dc7c2f | 329 | |
65ad5d11 | 330 | fnvlist_add_nvlist(nvl, propname, propval); |
34dc7c2f BB |
331 | nvlist_free(propval); |
332 | } | |
333 | ||
8eae2d21 AJ |
334 | /* |
335 | * Add a user property (source=src, propname=propval) to an nvlist. | |
336 | */ | |
337 | static void | |
338 | spa_prop_add_user(nvlist_t *nvl, const char *propname, char *strval, | |
339 | zprop_source_t src) | |
340 | { | |
341 | nvlist_t *propval; | |
342 | ||
343 | VERIFY(nvlist_alloc(&propval, NV_UNIQUE_NAME, KM_SLEEP) == 0); | |
344 | VERIFY(nvlist_add_uint64(propval, ZPROP_SOURCE, src) == 0); | |
345 | VERIFY(nvlist_add_string(propval, ZPROP_VALUE, strval) == 0); | |
346 | VERIFY(nvlist_add_nvlist(nvl, propname, propval) == 0); | |
347 | nvlist_free(propval); | |
348 | } | |
349 | ||
34dc7c2f BB |
350 | /* |
351 | * Get property values from the spa configuration. | |
352 | */ | |
353 | static void | |
354 | spa_prop_get_config(spa_t *spa, nvlist_t **nvp) | |
355 | { | |
1bd201e7 | 356 | vdev_t *rvd = spa->spa_root_vdev; |
9ae529ec | 357 | dsl_pool_t *pool = spa->spa_dsl_pool; |
f3a7f661 | 358 | uint64_t size, alloc, cap, version; |
82ab6848 | 359 | const zprop_source_t src = ZPROP_SRC_NONE; |
b128c09f | 360 | spa_config_dirent_t *dp; |
f3a7f661 | 361 | metaslab_class_t *mc = spa_normal_class(spa); |
b128c09f BB |
362 | |
363 | ASSERT(MUTEX_HELD(&spa->spa_props_lock)); | |
34dc7c2f | 364 | |
1bd201e7 | 365 | if (rvd != NULL) { |
cc99f275 DB |
366 | alloc = metaslab_class_get_alloc(mc); |
367 | alloc += metaslab_class_get_alloc(spa_special_class(spa)); | |
368 | alloc += metaslab_class_get_alloc(spa_dedup_class(spa)); | |
aa755b35 | 369 | alloc += metaslab_class_get_alloc(spa_embedded_log_class(spa)); |
cc99f275 DB |
370 | |
371 | size = metaslab_class_get_space(mc); | |
372 | size += metaslab_class_get_space(spa_special_class(spa)); | |
373 | size += metaslab_class_get_space(spa_dedup_class(spa)); | |
aa755b35 | 374 | size += metaslab_class_get_space(spa_embedded_log_class(spa)); |
cc99f275 | 375 | |
d164b209 BB |
376 | spa_prop_add_list(*nvp, ZPOOL_PROP_NAME, spa_name(spa), 0, src); |
377 | spa_prop_add_list(*nvp, ZPOOL_PROP_SIZE, NULL, size, src); | |
428870ff BB |
378 | spa_prop_add_list(*nvp, ZPOOL_PROP_ALLOCATED, NULL, alloc, src); |
379 | spa_prop_add_list(*nvp, ZPOOL_PROP_FREE, NULL, | |
380 | size - alloc, src); | |
d2734cce SD |
381 | spa_prop_add_list(*nvp, ZPOOL_PROP_CHECKPOINT, NULL, |
382 | spa->spa_checkpoint_info.sci_dspace, src); | |
1bd201e7 | 383 | |
f3a7f661 GW |
384 | spa_prop_add_list(*nvp, ZPOOL_PROP_FRAGMENTATION, NULL, |
385 | metaslab_class_fragmentation(mc), src); | |
386 | spa_prop_add_list(*nvp, ZPOOL_PROP_EXPANDSZ, NULL, | |
387 | metaslab_class_expandable_space(mc), src); | |
572e2857 | 388 | spa_prop_add_list(*nvp, ZPOOL_PROP_READONLY, NULL, |
da92d5cb | 389 | (spa_mode(spa) == SPA_MODE_READ), src); |
d164b209 | 390 | |
428870ff | 391 | cap = (size == 0) ? 0 : (alloc * 100 / size); |
d164b209 BB |
392 | spa_prop_add_list(*nvp, ZPOOL_PROP_CAPACITY, NULL, cap, src); |
393 | ||
428870ff BB |
394 | spa_prop_add_list(*nvp, ZPOOL_PROP_DEDUPRATIO, NULL, |
395 | ddt_get_pool_dedup_ratio(spa), src); | |
67a1b037 PJD |
396 | spa_prop_add_list(*nvp, ZPOOL_PROP_BCLONEUSED, NULL, |
397 | brt_get_used(spa), src); | |
398 | spa_prop_add_list(*nvp, ZPOOL_PROP_BCLONESAVED, NULL, | |
399 | brt_get_saved(spa), src); | |
400 | spa_prop_add_list(*nvp, ZPOOL_PROP_BCLONERATIO, NULL, | |
401 | brt_get_ratio(spa), src); | |
428870ff | 402 | |
d164b209 | 403 | spa_prop_add_list(*nvp, ZPOOL_PROP_HEALTH, NULL, |
1bd201e7 | 404 | rvd->vdev_state, src); |
d164b209 BB |
405 | |
406 | version = spa_version(spa); | |
82ab6848 HM |
407 | if (version == zpool_prop_default_numeric(ZPOOL_PROP_VERSION)) { |
408 | spa_prop_add_list(*nvp, ZPOOL_PROP_VERSION, NULL, | |
409 | version, ZPROP_SRC_DEFAULT); | |
410 | } else { | |
411 | spa_prop_add_list(*nvp, ZPOOL_PROP_VERSION, NULL, | |
412 | version, ZPROP_SRC_LOCAL); | |
413 | } | |
a448a255 SD |
414 | spa_prop_add_list(*nvp, ZPOOL_PROP_LOAD_GUID, |
415 | NULL, spa_load_guid(spa), src); | |
d164b209 | 416 | } |
34dc7c2f | 417 | |
9ae529ec | 418 | if (pool != NULL) { |
9ae529ec CS |
419 | /* |
420 | * The $FREE directory was introduced in SPA_VERSION_DEADLISTS, | |
421 | * when opening pools before this version freedir will be NULL. | |
422 | */ | |
fbeddd60 | 423 | if (pool->dp_free_dir != NULL) { |
9ae529ec | 424 | spa_prop_add_list(*nvp, ZPOOL_PROP_FREEING, NULL, |
d683ddbb JG |
425 | dsl_dir_phys(pool->dp_free_dir)->dd_used_bytes, |
426 | src); | |
9ae529ec CS |
427 | } else { |
428 | spa_prop_add_list(*nvp, ZPOOL_PROP_FREEING, | |
429 | NULL, 0, src); | |
430 | } | |
fbeddd60 MA |
431 | |
432 | if (pool->dp_leak_dir != NULL) { | |
433 | spa_prop_add_list(*nvp, ZPOOL_PROP_LEAKED, NULL, | |
d683ddbb JG |
434 | dsl_dir_phys(pool->dp_leak_dir)->dd_used_bytes, |
435 | src); | |
fbeddd60 MA |
436 | } else { |
437 | spa_prop_add_list(*nvp, ZPOOL_PROP_LEAKED, | |
438 | NULL, 0, src); | |
439 | } | |
9ae529ec CS |
440 | } |
441 | ||
34dc7c2f | 442 | spa_prop_add_list(*nvp, ZPOOL_PROP_GUID, NULL, spa_guid(spa), src); |
34dc7c2f | 443 | |
d96eb2b1 DM |
444 | if (spa->spa_comment != NULL) { |
445 | spa_prop_add_list(*nvp, ZPOOL_PROP_COMMENT, spa->spa_comment, | |
446 | 0, ZPROP_SRC_LOCAL); | |
447 | } | |
448 | ||
658fb802 CB |
449 | if (spa->spa_compatibility != NULL) { |
450 | spa_prop_add_list(*nvp, ZPOOL_PROP_COMPATIBILITY, | |
451 | spa->spa_compatibility, 0, ZPROP_SRC_LOCAL); | |
452 | } | |
453 | ||
34dc7c2f BB |
454 | if (spa->spa_root != NULL) |
455 | spa_prop_add_list(*nvp, ZPOOL_PROP_ALTROOT, spa->spa_root, | |
456 | 0, ZPROP_SRC_LOCAL); | |
457 | ||
f1512ee6 MA |
458 | if (spa_feature_is_enabled(spa, SPA_FEATURE_LARGE_BLOCKS)) { |
459 | spa_prop_add_list(*nvp, ZPOOL_PROP_MAXBLOCKSIZE, NULL, | |
460 | MIN(zfs_max_recordsize, SPA_MAXBLOCKSIZE), ZPROP_SRC_NONE); | |
461 | } else { | |
462 | spa_prop_add_list(*nvp, ZPOOL_PROP_MAXBLOCKSIZE, NULL, | |
463 | SPA_OLD_MAXBLOCKSIZE, ZPROP_SRC_NONE); | |
464 | } | |
465 | ||
50c957f7 NB |
466 | if (spa_feature_is_enabled(spa, SPA_FEATURE_LARGE_DNODE)) { |
467 | spa_prop_add_list(*nvp, ZPOOL_PROP_MAXDNODESIZE, NULL, | |
468 | DNODE_MAX_SIZE, ZPROP_SRC_NONE); | |
469 | } else { | |
470 | spa_prop_add_list(*nvp, ZPOOL_PROP_MAXDNODESIZE, NULL, | |
471 | DNODE_MIN_SIZE, ZPROP_SRC_NONE); | |
472 | } | |
473 | ||
b128c09f BB |
474 | if ((dp = list_head(&spa->spa_config_list)) != NULL) { |
475 | if (dp->scd_path == NULL) { | |
34dc7c2f | 476 | spa_prop_add_list(*nvp, ZPOOL_PROP_CACHEFILE, |
b128c09f BB |
477 | "none", 0, ZPROP_SRC_LOCAL); |
478 | } else if (strcmp(dp->scd_path, spa_config_path) != 0) { | |
34dc7c2f | 479 | spa_prop_add_list(*nvp, ZPOOL_PROP_CACHEFILE, |
b128c09f | 480 | dp->scd_path, 0, ZPROP_SRC_LOCAL); |
34dc7c2f BB |
481 | } |
482 | } | |
483 | } | |
484 | ||
485 | /* | |
486 | * Get zpool property values. | |
487 | */ | |
488 | int | |
489 | spa_prop_get(spa_t *spa, nvlist_t **nvp) | |
490 | { | |
428870ff | 491 | objset_t *mos = spa->spa_meta_objset; |
34dc7c2f BB |
492 | zap_cursor_t zc; |
493 | zap_attribute_t za; | |
1743c737 | 494 | dsl_pool_t *dp; |
34dc7c2f BB |
495 | int err; |
496 | ||
79c76d5b | 497 | err = nvlist_alloc(nvp, NV_UNIQUE_NAME, KM_SLEEP); |
c28b2279 | 498 | if (err) |
d1d7e268 | 499 | return (err); |
34dc7c2f | 500 | |
1743c737 AM |
501 | dp = spa_get_dsl(spa); |
502 | dsl_pool_config_enter(dp, FTAG); | |
b128c09f BB |
503 | mutex_enter(&spa->spa_props_lock); |
504 | ||
34dc7c2f BB |
505 | /* |
506 | * Get properties from the spa config. | |
507 | */ | |
508 | spa_prop_get_config(spa, nvp); | |
509 | ||
34dc7c2f | 510 | /* If no pool property object, no more prop to get. */ |
1743c737 | 511 | if (mos == NULL || spa->spa_pool_props_object == 0) |
c28b2279 | 512 | goto out; |
34dc7c2f BB |
513 | |
514 | /* | |
515 | * Get properties from the MOS pool property object. | |
516 | */ | |
517 | for (zap_cursor_init(&zc, mos, spa->spa_pool_props_object); | |
518 | (err = zap_cursor_retrieve(&zc, &za)) == 0; | |
519 | zap_cursor_advance(&zc)) { | |
520 | uint64_t intval = 0; | |
521 | char *strval = NULL; | |
522 | zprop_source_t src = ZPROP_SRC_DEFAULT; | |
523 | zpool_prop_t prop; | |
524 | ||
8eae2d21 AJ |
525 | if ((prop = zpool_name_to_prop(za.za_name)) == |
526 | ZPOOL_PROP_INVAL && !zfs_prop_user(za.za_name)) | |
34dc7c2f BB |
527 | continue; |
528 | ||
529 | switch (za.za_integer_length) { | |
530 | case 8: | |
531 | /* integer property */ | |
532 | if (za.za_first_integer != | |
533 | zpool_prop_default_numeric(prop)) | |
534 | src = ZPROP_SRC_LOCAL; | |
535 | ||
536 | if (prop == ZPOOL_PROP_BOOTFS) { | |
34dc7c2f BB |
537 | dsl_dataset_t *ds = NULL; |
538 | ||
619f0976 GW |
539 | err = dsl_dataset_hold_obj(dp, |
540 | za.za_first_integer, FTAG, &ds); | |
1743c737 | 541 | if (err != 0) |
34dc7c2f | 542 | break; |
34dc7c2f | 543 | |
eca7b760 | 544 | strval = kmem_alloc(ZFS_MAX_DATASET_NAME_LEN, |
79c76d5b | 545 | KM_SLEEP); |
34dc7c2f | 546 | dsl_dataset_name(ds, strval); |
b128c09f | 547 | dsl_dataset_rele(ds, FTAG); |
34dc7c2f BB |
548 | } else { |
549 | strval = NULL; | |
550 | intval = za.za_first_integer; | |
551 | } | |
552 | ||
553 | spa_prop_add_list(*nvp, prop, strval, intval, src); | |
554 | ||
555 | if (strval != NULL) | |
eca7b760 | 556 | kmem_free(strval, ZFS_MAX_DATASET_NAME_LEN); |
34dc7c2f BB |
557 | |
558 | break; | |
559 | ||
560 | case 1: | |
561 | /* string property */ | |
79c76d5b | 562 | strval = kmem_alloc(za.za_num_integers, KM_SLEEP); |
34dc7c2f BB |
563 | err = zap_lookup(mos, spa->spa_pool_props_object, |
564 | za.za_name, 1, za.za_num_integers, strval); | |
565 | if (err) { | |
566 | kmem_free(strval, za.za_num_integers); | |
567 | break; | |
568 | } | |
8eae2d21 AJ |
569 | if (prop != ZPOOL_PROP_INVAL) { |
570 | spa_prop_add_list(*nvp, prop, strval, 0, src); | |
571 | } else { | |
572 | src = ZPROP_SRC_LOCAL; | |
573 | spa_prop_add_user(*nvp, za.za_name, strval, | |
574 | src); | |
575 | } | |
34dc7c2f BB |
576 | kmem_free(strval, za.za_num_integers); |
577 | break; | |
578 | ||
579 | default: | |
580 | break; | |
581 | } | |
582 | } | |
583 | zap_cursor_fini(&zc); | |
34dc7c2f | 584 | out: |
1743c737 AM |
585 | mutex_exit(&spa->spa_props_lock); |
586 | dsl_pool_config_exit(dp, FTAG); | |
34dc7c2f BB |
587 | if (err && err != ENOENT) { |
588 | nvlist_free(*nvp); | |
589 | *nvp = NULL; | |
590 | return (err); | |
591 | } | |
592 | ||
593 | return (0); | |
594 | } | |
595 | ||
596 | /* | |
597 | * Validate the given pool properties nvlist and modify the list | |
598 | * for the property values to be set. | |
599 | */ | |
600 | static int | |
601 | spa_prop_validate(spa_t *spa, nvlist_t *props) | |
602 | { | |
603 | nvpair_t *elem; | |
604 | int error = 0, reset_bootfs = 0; | |
d4ed6673 | 605 | uint64_t objnum = 0; |
9ae529ec | 606 | boolean_t has_feature = B_FALSE; |
34dc7c2f BB |
607 | |
608 | elem = NULL; | |
609 | while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { | |
34dc7c2f | 610 | uint64_t intval; |
d1807f16 | 611 | const char *strval, *slash, *check, *fname; |
9ae529ec CS |
612 | const char *propname = nvpair_name(elem); |
613 | zpool_prop_t prop = zpool_name_to_prop(propname); | |
614 | ||
31864e3d BB |
615 | switch (prop) { |
616 | case ZPOOL_PROP_INVAL: | |
9ae529ec CS |
617 | /* |
618 | * Sanitize the input. | |
619 | */ | |
8eae2d21 AJ |
620 | if (zfs_prop_user(propname)) { |
621 | if (strlen(propname) >= ZAP_MAXNAMELEN) { | |
622 | error = SET_ERROR(ENAMETOOLONG); | |
623 | break; | |
624 | } | |
9ae529ec | 625 | |
8eae2d21 AJ |
626 | if (strlen(fnvpair_value_string(elem)) >= |
627 | ZAP_MAXVALUELEN) { | |
628 | error = SET_ERROR(E2BIG); | |
629 | break; | |
630 | } | |
631 | } else if (zpool_prop_feature(propname)) { | |
632 | if (nvpair_type(elem) != DATA_TYPE_UINT64) { | |
633 | error = SET_ERROR(EINVAL); | |
634 | break; | |
635 | } | |
34dc7c2f | 636 | |
8eae2d21 AJ |
637 | if (nvpair_value_uint64(elem, &intval) != 0) { |
638 | error = SET_ERROR(EINVAL); | |
639 | break; | |
640 | } | |
641 | ||
642 | if (intval != 0) { | |
643 | error = SET_ERROR(EINVAL); | |
644 | break; | |
645 | } | |
646 | ||
647 | fname = strchr(propname, '@') + 1; | |
648 | if (zfeature_lookup_name(fname, NULL) != 0) { | |
649 | error = SET_ERROR(EINVAL); | |
650 | break; | |
651 | } | |
34dc7c2f | 652 | |
8eae2d21 AJ |
653 | has_feature = B_TRUE; |
654 | } else { | |
2e528b49 | 655 | error = SET_ERROR(EINVAL); |
9ae529ec CS |
656 | break; |
657 | } | |
9ae529ec | 658 | break; |
34dc7c2f | 659 | |
34dc7c2f BB |
660 | case ZPOOL_PROP_VERSION: |
661 | error = nvpair_value_uint64(elem, &intval); | |
662 | if (!error && | |
9ae529ec CS |
663 | (intval < spa_version(spa) || |
664 | intval > SPA_VERSION_BEFORE_FEATURES || | |
665 | has_feature)) | |
2e528b49 | 666 | error = SET_ERROR(EINVAL); |
34dc7c2f BB |
667 | break; |
668 | ||
669 | case ZPOOL_PROP_DELEGATION: | |
670 | case ZPOOL_PROP_AUTOREPLACE: | |
b128c09f | 671 | case ZPOOL_PROP_LISTSNAPS: |
9babb374 | 672 | case ZPOOL_PROP_AUTOEXPAND: |
1b939560 | 673 | case ZPOOL_PROP_AUTOTRIM: |
34dc7c2f BB |
674 | error = nvpair_value_uint64(elem, &intval); |
675 | if (!error && intval > 1) | |
2e528b49 | 676 | error = SET_ERROR(EINVAL); |
34dc7c2f BB |
677 | break; |
678 | ||
379ca9cf OF |
679 | case ZPOOL_PROP_MULTIHOST: |
680 | error = nvpair_value_uint64(elem, &intval); | |
681 | if (!error && intval > 1) | |
682 | error = SET_ERROR(EINVAL); | |
683 | ||
25f06d67 BB |
684 | if (!error) { |
685 | uint32_t hostid = zone_get_hostid(NULL); | |
686 | if (hostid) | |
687 | spa->spa_hostid = hostid; | |
688 | else | |
689 | error = SET_ERROR(ENOTSUP); | |
690 | } | |
379ca9cf OF |
691 | |
692 | break; | |
693 | ||
34dc7c2f | 694 | case ZPOOL_PROP_BOOTFS: |
9babb374 BB |
695 | /* |
696 | * If the pool version is less than SPA_VERSION_BOOTFS, | |
697 | * or the pool is still being created (version == 0), | |
698 | * the bootfs property cannot be set. | |
699 | */ | |
34dc7c2f | 700 | if (spa_version(spa) < SPA_VERSION_BOOTFS) { |
2e528b49 | 701 | error = SET_ERROR(ENOTSUP); |
34dc7c2f BB |
702 | break; |
703 | } | |
704 | ||
705 | /* | |
b128c09f | 706 | * Make sure the vdev config is bootable |
34dc7c2f | 707 | */ |
b128c09f | 708 | if (!vdev_is_bootable(spa->spa_root_vdev)) { |
2e528b49 | 709 | error = SET_ERROR(ENOTSUP); |
34dc7c2f BB |
710 | break; |
711 | } | |
712 | ||
713 | reset_bootfs = 1; | |
714 | ||
715 | error = nvpair_value_string(elem, &strval); | |
716 | ||
717 | if (!error) { | |
9ae529ec | 718 | objset_t *os; |
b128c09f | 719 | |
34dc7c2f BB |
720 | if (strval == NULL || strval[0] == '\0') { |
721 | objnum = zpool_prop_default_numeric( | |
722 | ZPOOL_PROP_BOOTFS); | |
723 | break; | |
724 | } | |
725 | ||
d1d7e268 | 726 | error = dmu_objset_hold(strval, FTAG, &os); |
619f0976 | 727 | if (error != 0) |
34dc7c2f | 728 | break; |
b128c09f | 729 | |
eaa25f1a | 730 | /* Must be ZPL. */ |
428870ff | 731 | if (dmu_objset_type(os) != DMU_OST_ZFS) { |
2e528b49 | 732 | error = SET_ERROR(ENOTSUP); |
b128c09f BB |
733 | } else { |
734 | objnum = dmu_objset_id(os); | |
735 | } | |
428870ff | 736 | dmu_objset_rele(os, FTAG); |
34dc7c2f BB |
737 | } |
738 | break; | |
b128c09f | 739 | |
34dc7c2f BB |
740 | case ZPOOL_PROP_FAILUREMODE: |
741 | error = nvpair_value_uint64(elem, &intval); | |
3bfd95d5 | 742 | if (!error && intval > ZIO_FAILURE_MODE_PANIC) |
2e528b49 | 743 | error = SET_ERROR(EINVAL); |
34dc7c2f BB |
744 | |
745 | /* | |
746 | * This is a special case which only occurs when | |
747 | * the pool has completely failed. This allows | |
748 | * the user to change the in-core failmode property | |
749 | * without syncing it out to disk (I/Os might | |
750 | * currently be blocked). We do this by returning | |
751 | * EIO to the caller (spa_prop_set) to trick it | |
752 | * into thinking we encountered a property validation | |
753 | * error. | |
754 | */ | |
b128c09f | 755 | if (!error && spa_suspended(spa)) { |
34dc7c2f | 756 | spa->spa_failmode = intval; |
2e528b49 | 757 | error = SET_ERROR(EIO); |
34dc7c2f BB |
758 | } |
759 | break; | |
760 | ||
761 | case ZPOOL_PROP_CACHEFILE: | |
762 | if ((error = nvpair_value_string(elem, &strval)) != 0) | |
763 | break; | |
764 | ||
765 | if (strval[0] == '\0') | |
766 | break; | |
767 | ||
768 | if (strcmp(strval, "none") == 0) | |
769 | break; | |
770 | ||
771 | if (strval[0] != '/') { | |
2e528b49 | 772 | error = SET_ERROR(EINVAL); |
34dc7c2f BB |
773 | break; |
774 | } | |
775 | ||
776 | slash = strrchr(strval, '/'); | |
777 | ASSERT(slash != NULL); | |
778 | ||
779 | if (slash[1] == '\0' || strcmp(slash, "/.") == 0 || | |
780 | strcmp(slash, "/..") == 0) | |
2e528b49 | 781 | error = SET_ERROR(EINVAL); |
34dc7c2f | 782 | break; |
428870ff | 783 | |
d96eb2b1 DM |
784 | case ZPOOL_PROP_COMMENT: |
785 | if ((error = nvpair_value_string(elem, &strval)) != 0) | |
786 | break; | |
787 | for (check = strval; *check != '\0'; check++) { | |
788 | if (!isprint(*check)) { | |
2e528b49 | 789 | error = SET_ERROR(EINVAL); |
d96eb2b1 DM |
790 | break; |
791 | } | |
d96eb2b1 DM |
792 | } |
793 | if (strlen(strval) > ZPROP_MAX_COMMENT) | |
2e528b49 | 794 | error = SET_ERROR(E2BIG); |
d96eb2b1 DM |
795 | break; |
796 | ||
e75c13c3 BB |
797 | default: |
798 | break; | |
34dc7c2f BB |
799 | } |
800 | ||
801 | if (error) | |
802 | break; | |
803 | } | |
804 | ||
050d720c MA |
805 | (void) nvlist_remove_all(props, |
806 | zpool_prop_to_name(ZPOOL_PROP_DEDUPDITTO)); | |
807 | ||
34dc7c2f BB |
808 | if (!error && reset_bootfs) { |
809 | error = nvlist_remove(props, | |
810 | zpool_prop_to_name(ZPOOL_PROP_BOOTFS), DATA_TYPE_STRING); | |
811 | ||
812 | if (!error) { | |
813 | error = nvlist_add_uint64(props, | |
814 | zpool_prop_to_name(ZPOOL_PROP_BOOTFS), objnum); | |
815 | } | |
816 | } | |
817 | ||
818 | return (error); | |
819 | } | |
820 | ||
d164b209 BB |
821 | void |
822 | spa_configfile_set(spa_t *spa, nvlist_t *nvp, boolean_t need_sync) | |
823 | { | |
d1807f16 | 824 | const char *cachefile; |
d164b209 BB |
825 | spa_config_dirent_t *dp; |
826 | ||
827 | if (nvlist_lookup_string(nvp, zpool_prop_to_name(ZPOOL_PROP_CACHEFILE), | |
828 | &cachefile) != 0) | |
829 | return; | |
830 | ||
831 | dp = kmem_alloc(sizeof (spa_config_dirent_t), | |
79c76d5b | 832 | KM_SLEEP); |
d164b209 BB |
833 | |
834 | if (cachefile[0] == '\0') | |
835 | dp->scd_path = spa_strdup(spa_config_path); | |
836 | else if (strcmp(cachefile, "none") == 0) | |
837 | dp->scd_path = NULL; | |
838 | else | |
839 | dp->scd_path = spa_strdup(cachefile); | |
840 | ||
841 | list_insert_head(&spa->spa_config_list, dp); | |
842 | if (need_sync) | |
843 | spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE); | |
844 | } | |
845 | ||
34dc7c2f BB |
846 | int |
847 | spa_prop_set(spa_t *spa, nvlist_t *nvp) | |
848 | { | |
849 | int error; | |
9ae529ec | 850 | nvpair_t *elem = NULL; |
d164b209 | 851 | boolean_t need_sync = B_FALSE; |
34dc7c2f BB |
852 | |
853 | if ((error = spa_prop_validate(spa, nvp)) != 0) | |
854 | return (error); | |
855 | ||
d164b209 | 856 | while ((elem = nvlist_next_nvpair(nvp, elem)) != NULL) { |
9ae529ec | 857 | zpool_prop_t prop = zpool_name_to_prop(nvpair_name(elem)); |
d164b209 | 858 | |
572e2857 BB |
859 | if (prop == ZPOOL_PROP_CACHEFILE || |
860 | prop == ZPOOL_PROP_ALTROOT || | |
861 | prop == ZPOOL_PROP_READONLY) | |
d164b209 BB |
862 | continue; |
863 | ||
8eae2d21 AJ |
864 | if (prop == ZPOOL_PROP_INVAL && |
865 | zfs_prop_user(nvpair_name(elem))) { | |
866 | need_sync = B_TRUE; | |
867 | break; | |
868 | } | |
869 | ||
31864e3d | 870 | if (prop == ZPOOL_PROP_VERSION || prop == ZPOOL_PROP_INVAL) { |
2a673e76 | 871 | uint64_t ver = 0; |
9ae529ec CS |
872 | |
873 | if (prop == ZPOOL_PROP_VERSION) { | |
874 | VERIFY(nvpair_value_uint64(elem, &ver) == 0); | |
875 | } else { | |
876 | ASSERT(zpool_prop_feature(nvpair_name(elem))); | |
877 | ver = SPA_VERSION_FEATURES; | |
878 | need_sync = B_TRUE; | |
879 | } | |
880 | ||
881 | /* Save time if the version is already set. */ | |
882 | if (ver == spa_version(spa)) | |
883 | continue; | |
884 | ||
885 | /* | |
886 | * In addition to the pool directory object, we might | |
887 | * create the pool properties object, the features for | |
888 | * read object, the features for write object, or the | |
889 | * feature descriptions object. | |
890 | */ | |
13fe0198 | 891 | error = dsl_sync_task(spa->spa_name, NULL, |
3d45fdd6 MA |
892 | spa_sync_version, &ver, |
893 | 6, ZFS_SPACE_CHECK_RESERVED); | |
9ae529ec CS |
894 | if (error) |
895 | return (error); | |
896 | continue; | |
897 | } | |
898 | ||
d164b209 BB |
899 | need_sync = B_TRUE; |
900 | break; | |
901 | } | |
902 | ||
9ae529ec | 903 | if (need_sync) { |
13fe0198 | 904 | return (dsl_sync_task(spa->spa_name, NULL, spa_sync_props, |
3d45fdd6 | 905 | nvp, 6, ZFS_SPACE_CHECK_RESERVED)); |
9ae529ec CS |
906 | } |
907 | ||
908 | return (0); | |
34dc7c2f BB |
909 | } |
910 | ||
911 | /* | |
912 | * If the bootfs property value is dsobj, clear it. | |
913 | */ | |
914 | void | |
915 | spa_prop_clear_bootfs(spa_t *spa, uint64_t dsobj, dmu_tx_t *tx) | |
916 | { | |
917 | if (spa->spa_bootfs == dsobj && spa->spa_pool_props_object != 0) { | |
918 | VERIFY(zap_remove(spa->spa_meta_objset, | |
919 | spa->spa_pool_props_object, | |
920 | zpool_prop_to_name(ZPOOL_PROP_BOOTFS), tx) == 0); | |
921 | spa->spa_bootfs = 0; | |
922 | } | |
923 | } | |
924 | ||
3bc7e0fb | 925 | static int |
13fe0198 | 926 | spa_change_guid_check(void *arg, dmu_tx_t *tx) |
3bc7e0fb | 927 | { |
2a8ba608 | 928 | uint64_t *newguid __maybe_unused = arg; |
13fe0198 | 929 | spa_t *spa = dmu_tx_pool(tx)->dp_spa; |
3bc7e0fb GW |
930 | vdev_t *rvd = spa->spa_root_vdev; |
931 | uint64_t vdev_state; | |
3bc7e0fb | 932 | |
d2734cce SD |
933 | if (spa_feature_is_active(spa, SPA_FEATURE_POOL_CHECKPOINT)) { |
934 | int error = (spa_has_checkpoint(spa)) ? | |
935 | ZFS_ERR_CHECKPOINT_EXISTS : ZFS_ERR_DISCARDING_CHECKPOINT; | |
936 | return (SET_ERROR(error)); | |
937 | } | |
938 | ||
3bc7e0fb GW |
939 | spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); |
940 | vdev_state = rvd->vdev_state; | |
941 | spa_config_exit(spa, SCL_STATE, FTAG); | |
942 | ||
943 | if (vdev_state != VDEV_STATE_HEALTHY) | |
2e528b49 | 944 | return (SET_ERROR(ENXIO)); |
3bc7e0fb GW |
945 | |
946 | ASSERT3U(spa_guid(spa), !=, *newguid); | |
947 | ||
948 | return (0); | |
949 | } | |
950 | ||
951 | static void | |
13fe0198 | 952 | spa_change_guid_sync(void *arg, dmu_tx_t *tx) |
3bc7e0fb | 953 | { |
13fe0198 MA |
954 | uint64_t *newguid = arg; |
955 | spa_t *spa = dmu_tx_pool(tx)->dp_spa; | |
3bc7e0fb GW |
956 | uint64_t oldguid; |
957 | vdev_t *rvd = spa->spa_root_vdev; | |
958 | ||
959 | oldguid = spa_guid(spa); | |
960 | ||
961 | spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); | |
962 | rvd->vdev_guid = *newguid; | |
963 | rvd->vdev_guid_sum += (*newguid - oldguid); | |
964 | vdev_config_dirty(rvd); | |
965 | spa_config_exit(spa, SCL_STATE, FTAG); | |
966 | ||
6f1ffb06 | 967 | spa_history_log_internal(spa, "guid change", tx, "old=%llu new=%llu", |
74756182 | 968 | (u_longlong_t)oldguid, (u_longlong_t)*newguid); |
3bc7e0fb GW |
969 | } |
970 | ||
3541dc6d GA |
971 | /* |
972 | * Change the GUID for the pool. This is done so that we can later | |
973 | * re-import a pool built from a clone of our own vdevs. We will modify | |
974 | * the root vdev's guid, our own pool guid, and then mark all of our | |
975 | * vdevs dirty. Note that we must make sure that all our vdevs are | |
976 | * online when we do this, or else any vdevs that weren't present | |
977 | * would be orphaned from our pool. We are also going to issue a | |
978 | * sysevent to update any watchers. | |
979 | */ | |
980 | int | |
981 | spa_change_guid(spa_t *spa) | |
982 | { | |
3bc7e0fb GW |
983 | int error; |
984 | uint64_t guid; | |
3541dc6d | 985 | |
621dd7bb | 986 | mutex_enter(&spa->spa_vdev_top_lock); |
3bc7e0fb GW |
987 | mutex_enter(&spa_namespace_lock); |
988 | guid = spa_generate_guid(NULL); | |
3541dc6d | 989 | |
13fe0198 | 990 | error = dsl_sync_task(spa->spa_name, spa_change_guid_check, |
3d45fdd6 | 991 | spa_change_guid_sync, &guid, 5, ZFS_SPACE_CHECK_RESERVED); |
3541dc6d | 992 | |
3bc7e0fb | 993 | if (error == 0) { |
55c12724 AH |
994 | /* |
995 | * Clear the kobj flag from all the vdevs to allow | |
996 | * vdev_cache_process_kobj_evt() to post events to all the | |
997 | * vdevs since GUID is updated. | |
998 | */ | |
999 | vdev_clear_kobj_evt(spa->spa_root_vdev); | |
1000 | for (int i = 0; i < spa->spa_l2cache.sav_count; i++) | |
1001 | vdev_clear_kobj_evt(spa->spa_l2cache.sav_vdevs[i]); | |
1002 | ||
1003 | spa_write_cachefile(spa, B_FALSE, B_TRUE, B_TRUE); | |
12fa0466 | 1004 | spa_event_notify(spa, NULL, NULL, ESC_ZFS_POOL_REGUID); |
3bc7e0fb | 1005 | } |
3541dc6d | 1006 | |
3bc7e0fb | 1007 | mutex_exit(&spa_namespace_lock); |
621dd7bb | 1008 | mutex_exit(&spa->spa_vdev_top_lock); |
3541dc6d | 1009 | |
3bc7e0fb | 1010 | return (error); |
3541dc6d GA |
1011 | } |
1012 | ||
34dc7c2f BB |
1013 | /* |
1014 | * ========================================================================== | |
1015 | * SPA state manipulation (open/create/destroy/import/export) | |
1016 | * ========================================================================== | |
1017 | */ | |
1018 | ||
1019 | static int | |
1020 | spa_error_entry_compare(const void *a, const void *b) | |
1021 | { | |
ee36c709 GN |
1022 | const spa_error_entry_t *sa = (const spa_error_entry_t *)a; |
1023 | const spa_error_entry_t *sb = (const spa_error_entry_t *)b; | |
34dc7c2f BB |
1024 | int ret; |
1025 | ||
ee36c709 | 1026 | ret = memcmp(&sa->se_bookmark, &sb->se_bookmark, |
5dbd68a3 | 1027 | sizeof (zbookmark_phys_t)); |
34dc7c2f | 1028 | |
ca577779 | 1029 | return (TREE_ISIGN(ret)); |
34dc7c2f BB |
1030 | } |
1031 | ||
1032 | /* | |
1033 | * Utility function which retrieves copies of the current logs and | |
1034 | * re-initializes them in the process. | |
1035 | */ | |
1036 | void | |
1037 | spa_get_errlists(spa_t *spa, avl_tree_t *last, avl_tree_t *scrub) | |
1038 | { | |
1039 | ASSERT(MUTEX_HELD(&spa->spa_errlist_lock)); | |
1040 | ||
861166b0 AZ |
1041 | memcpy(last, &spa->spa_errlist_last, sizeof (avl_tree_t)); |
1042 | memcpy(scrub, &spa->spa_errlist_scrub, sizeof (avl_tree_t)); | |
34dc7c2f BB |
1043 | |
1044 | avl_create(&spa->spa_errlist_scrub, | |
1045 | spa_error_entry_compare, sizeof (spa_error_entry_t), | |
1046 | offsetof(spa_error_entry_t, se_avl)); | |
1047 | avl_create(&spa->spa_errlist_last, | |
1048 | spa_error_entry_compare, sizeof (spa_error_entry_t), | |
1049 | offsetof(spa_error_entry_t, se_avl)); | |
1050 | } | |
1051 | ||
7ef5e54e AL |
1052 | static void |
1053 | spa_taskqs_init(spa_t *spa, zio_type_t t, zio_taskq_type_t q) | |
34dc7c2f | 1054 | { |
7ef5e54e AL |
1055 | const zio_taskq_info_t *ztip = &zio_taskqs[t][q]; |
1056 | enum zti_modes mode = ztip->zti_mode; | |
1057 | uint_t value = ztip->zti_value; | |
1058 | uint_t count = ztip->zti_count; | |
1059 | spa_taskqs_t *tqs = &spa->spa_zio_taskq[t][q]; | |
7457b024 | 1060 | uint_t cpus, flags = TASKQ_DYNAMIC; |
34dc7c2f | 1061 | |
e8b96c60 MA |
1062 | switch (mode) { |
1063 | case ZTI_MODE_FIXED: | |
7457b024 | 1064 | ASSERT3U(value, >, 0); |
e8b96c60 | 1065 | break; |
7ef5e54e | 1066 | |
3bd4df38 EN |
1067 | case ZTI_MODE_SYNC: |
1068 | ||
1069 | /* | |
1070 | * Create one wr_iss taskq for every 'zio_taskq_wr_iss_ncpus', | |
1071 | * not to exceed the number of spa allocators. | |
1072 | */ | |
1073 | if (zio_taskq_wr_iss_ncpus == 0) { | |
1074 | count = MAX(boot_ncpus / spa->spa_alloc_count, 1); | |
1075 | } else { | |
1076 | count = MAX(1, | |
1077 | boot_ncpus / MAX(1, zio_taskq_wr_iss_ncpus)); | |
1078 | } | |
1079 | count = MAX(count, (zio_taskq_batch_pct + 99) / 100); | |
1080 | count = MIN(count, spa->spa_alloc_count); | |
1081 | ||
1082 | /* | |
1083 | * zio_taskq_batch_pct is unbounded and may exceed 100%, but no | |
1084 | * single taskq may have more threads than 100% of online cpus. | |
1085 | */ | |
1086 | value = (zio_taskq_batch_pct + count / 2) / count; | |
1087 | value = MIN(value, 100); | |
e8b96c60 | 1088 | flags |= TASKQ_THREADS_CPU_PCT; |
e8b96c60 | 1089 | break; |
7ef5e54e | 1090 | |
7457b024 AM |
1091 | case ZTI_MODE_SCALE: |
1092 | flags |= TASKQ_THREADS_CPU_PCT; | |
1093 | /* | |
1094 | * We want more taskqs to reduce lock contention, but we want | |
1095 | * less for better request ordering and CPU utilization. | |
1096 | */ | |
1097 | cpus = MAX(1, boot_ncpus * zio_taskq_batch_pct / 100); | |
1098 | if (zio_taskq_batch_tpq > 0) { | |
1099 | count = MAX(1, (cpus + zio_taskq_batch_tpq / 2) / | |
1100 | zio_taskq_batch_tpq); | |
1101 | } else { | |
1102 | /* | |
1103 | * Prefer 6 threads per taskq, but no more taskqs | |
1104 | * than threads in them on large systems. For 80%: | |
1105 | * | |
1106 | * taskq taskq total | |
1107 | * cpus taskqs percent threads threads | |
1108 | * ------- ------- ------- ------- ------- | |
1109 | * 1 1 80% 1 1 | |
1110 | * 2 1 80% 1 1 | |
1111 | * 4 1 80% 3 3 | |
1112 | * 8 2 40% 3 6 | |
1113 | * 16 3 27% 4 12 | |
1114 | * 32 5 16% 5 25 | |
1115 | * 64 7 11% 7 49 | |
1116 | * 128 10 8% 10 100 | |
1117 | * 256 14 6% 15 210 | |
1118 | */ | |
1119 | count = 1 + cpus / 6; | |
1120 | while (count * count > cpus) | |
1121 | count--; | |
1122 | } | |
1123 | /* Limit each taskq within 100% to not trigger assertion. */ | |
1124 | count = MAX(count, (zio_taskq_batch_pct + 99) / 100); | |
1125 | value = (zio_taskq_batch_pct + count / 2) / count; | |
1126 | break; | |
1127 | ||
1128 | case ZTI_MODE_NULL: | |
1129 | tqs->stqs_count = 0; | |
1130 | tqs->stqs_taskq = NULL; | |
1131 | return; | |
1132 | ||
e8b96c60 MA |
1133 | default: |
1134 | panic("unrecognized mode for %s_%s taskq (%u:%u) in " | |
3bd4df38 | 1135 | "spa_taskqs_init()", |
e8b96c60 MA |
1136 | zio_type_name[t], zio_taskq_types[q], mode, value); |
1137 | break; | |
1138 | } | |
7ef5e54e | 1139 | |
7457b024 AM |
1140 | ASSERT3U(count, >, 0); |
1141 | tqs->stqs_count = count; | |
1142 | tqs->stqs_taskq = kmem_alloc(count * sizeof (taskq_t *), KM_SLEEP); | |
1143 | ||
1c27024e | 1144 | for (uint_t i = 0; i < count; i++) { |
e8b96c60 | 1145 | taskq_t *tq; |
af430294 | 1146 | char name[32]; |
7ef5e54e | 1147 | |
7457b024 AM |
1148 | if (count > 1) |
1149 | (void) snprintf(name, sizeof (name), "%s_%s_%u", | |
1150 | zio_type_name[t], zio_taskq_types[q], i); | |
1151 | else | |
1152 | (void) snprintf(name, sizeof (name), "%s_%s", | |
1153 | zio_type_name[t], zio_taskq_types[q]); | |
7ef5e54e | 1154 | |
b5e60918 | 1155 | #ifdef HAVE_SYSDC |
7ef5e54e | 1156 | if (zio_taskq_sysdc && spa->spa_proc != &p0) { |
18168da7 | 1157 | (void) zio_taskq_basedc; |
7ef5e54e AL |
1158 | tq = taskq_create_sysdc(name, value, 50, INT_MAX, |
1159 | spa->spa_proc, zio_taskq_basedc, flags); | |
1160 | } else { | |
b5e60918 | 1161 | #endif |
e8b96c60 MA |
1162 | pri_t pri = maxclsyspri; |
1163 | /* | |
1164 | * The write issue taskq can be extremely CPU | |
1229323d | 1165 | * intensive. Run it at slightly less important |
7432d297 MM |
1166 | * priority than the other taskqs. |
1167 | * | |
1168 | * Under Linux and FreeBSD this means incrementing | |
1169 | * the priority value as opposed to platforms like | |
1170 | * illumos where it should be decremented. | |
1171 | * | |
1172 | * On FreeBSD, if priorities divided by four (RQ_PPQ) | |
1173 | * are equal then a difference between them is | |
1174 | * insignificant. | |
e8b96c60 | 1175 | */ |
7432d297 MM |
1176 | if (t == ZIO_TYPE_WRITE && q == ZIO_TASKQ_ISSUE) { |
1177 | #if defined(__linux__) | |
1229323d | 1178 | pri++; |
7432d297 MM |
1179 | #elif defined(__FreeBSD__) |
1180 | pri += 4; | |
1181 | #else | |
1182 | #error "unknown OS" | |
1183 | #endif | |
1184 | } | |
e8b96c60 | 1185 | tq = taskq_create_proc(name, value, pri, 50, |
7ef5e54e | 1186 | INT_MAX, spa->spa_proc, flags); |
b5e60918 | 1187 | #ifdef HAVE_SYSDC |
7ef5e54e | 1188 | } |
b5e60918 | 1189 | #endif |
7ef5e54e AL |
1190 | |
1191 | tqs->stqs_taskq[i] = tq; | |
1192 | } | |
1193 | } | |
1194 | ||
1195 | static void | |
1196 | spa_taskqs_fini(spa_t *spa, zio_type_t t, zio_taskq_type_t q) | |
1197 | { | |
1198 | spa_taskqs_t *tqs = &spa->spa_zio_taskq[t][q]; | |
7ef5e54e AL |
1199 | |
1200 | if (tqs->stqs_taskq == NULL) { | |
1201 | ASSERT3U(tqs->stqs_count, ==, 0); | |
1202 | return; | |
1203 | } | |
1204 | ||
1c27024e | 1205 | for (uint_t i = 0; i < tqs->stqs_count; i++) { |
7ef5e54e AL |
1206 | ASSERT3P(tqs->stqs_taskq[i], !=, NULL); |
1207 | taskq_destroy(tqs->stqs_taskq[i]); | |
428870ff | 1208 | } |
34dc7c2f | 1209 | |
7ef5e54e AL |
1210 | kmem_free(tqs->stqs_taskq, tqs->stqs_count * sizeof (taskq_t *)); |
1211 | tqs->stqs_taskq = NULL; | |
1212 | } | |
34dc7c2f | 1213 | |
6930ecbb RN |
1214 | #ifdef _KERNEL |
1215 | /* | |
1216 | * The READ and WRITE rows of zio_taskqs are configurable at module load time | |
1217 | * by setting zio_taskq_read or zio_taskq_write. | |
1218 | * | |
1219 | * Example (the defaults for READ and WRITE) | |
1220 | * zio_taskq_read='fixed,1,8 null scale null' | |
1221 | * zio_taskq_write='sync fixed,1,5 scale fixed,1,5' | |
1222 | * | |
1223 | * Each sets the entire row at a time. | |
1224 | * | |
1225 | * 'fixed' is parameterised: fixed,Q,T where Q is number of taskqs, T is number | |
1226 | * of threads per taskq. | |
1227 | * | |
1228 | * 'null' can only be set on the high-priority queues (queue selection for | |
1229 | * high-priority queues will fall back to the regular queue if the high-pri | |
1230 | * is NULL. | |
1231 | */ | |
1232 | static const char *const modes[ZTI_NMODES] = { | |
1233 | "fixed", "scale", "sync", "null" | |
1234 | }; | |
1235 | ||
1236 | /* Parse the incoming config string. Modifies cfg */ | |
1237 | static int | |
1238 | spa_taskq_param_set(zio_type_t t, char *cfg) | |
1239 | { | |
1240 | int err = 0; | |
1241 | ||
1242 | zio_taskq_info_t row[ZIO_TASKQ_TYPES] = {{0}}; | |
1243 | ||
1244 | char *next = cfg, *tok, *c; | |
1245 | ||
1246 | /* | |
1247 | * Parse out each element from the string and fill `row`. The entire | |
1248 | * row has to be set at once, so any errors are flagged by just | |
1249 | * breaking out of this loop early. | |
1250 | */ | |
1251 | uint_t q; | |
1252 | for (q = 0; q < ZIO_TASKQ_TYPES; q++) { | |
1253 | /* `next` is the start of the config */ | |
1254 | if (next == NULL) | |
1255 | break; | |
1256 | ||
1257 | /* Eat up leading space */ | |
1258 | while (isspace(*next)) | |
1259 | next++; | |
1260 | if (*next == '\0') | |
1261 | break; | |
1262 | ||
1263 | /* Mode ends at space or end of string */ | |
1264 | tok = next; | |
1265 | next = strchr(tok, ' '); | |
1266 | if (next != NULL) *next++ = '\0'; | |
1267 | ||
1268 | /* Parameters start after a comma */ | |
1269 | c = strchr(tok, ','); | |
1270 | if (c != NULL) *c++ = '\0'; | |
1271 | ||
1272 | /* Match mode string */ | |
1273 | uint_t mode; | |
1274 | for (mode = 0; mode < ZTI_NMODES; mode++) | |
1275 | if (strcmp(tok, modes[mode]) == 0) | |
1276 | break; | |
1277 | if (mode == ZTI_NMODES) | |
1278 | break; | |
1279 | ||
1280 | /* Invalid canary */ | |
1281 | row[q].zti_mode = ZTI_NMODES; | |
1282 | ||
1283 | /* Per-mode setup */ | |
1284 | switch (mode) { | |
1285 | ||
1286 | /* | |
1287 | * FIXED is parameterised: number of queues, and number of | |
1288 | * threads per queue. | |
1289 | */ | |
1290 | case ZTI_MODE_FIXED: { | |
1291 | /* No parameters? */ | |
1292 | if (c == NULL || *c == '\0') | |
1293 | break; | |
1294 | ||
1295 | /* Find next parameter */ | |
1296 | tok = c; | |
1297 | c = strchr(tok, ','); | |
1298 | if (c == NULL) | |
1299 | break; | |
1300 | ||
1301 | /* Take digits and convert */ | |
1302 | unsigned long long nq; | |
1303 | if (!(isdigit(*tok))) | |
1304 | break; | |
1305 | err = ddi_strtoull(tok, &tok, 10, &nq); | |
1306 | /* Must succeed and also end at the next param sep */ | |
1307 | if (err != 0 || tok != c) | |
1308 | break; | |
1309 | ||
1310 | /* Move past the comma */ | |
1311 | tok++; | |
1312 | /* Need another number */ | |
1313 | if (!(isdigit(*tok))) | |
1314 | break; | |
1315 | /* Remember start to make sure we moved */ | |
1316 | c = tok; | |
1317 | ||
1318 | /* Take digits */ | |
1319 | unsigned long long ntpq; | |
1320 | err = ddi_strtoull(tok, &tok, 10, &ntpq); | |
1321 | /* Must succeed, and moved forward */ | |
1322 | if (err != 0 || tok == c || *tok != '\0') | |
1323 | break; | |
1324 | ||
1325 | /* | |
1326 | * sanity; zero queues/threads make no sense, and | |
1327 | * 16K is almost certainly more than anyone will ever | |
1328 | * need and avoids silly numbers like UINT32_MAX | |
1329 | */ | |
1330 | if (nq == 0 || nq >= 16384 || | |
1331 | ntpq == 0 || ntpq >= 16384) | |
1332 | break; | |
1333 | ||
1334 | const zio_taskq_info_t zti = ZTI_P(ntpq, nq); | |
1335 | row[q] = zti; | |
1336 | break; | |
1337 | } | |
1338 | ||
1339 | case ZTI_MODE_SCALE: { | |
1340 | const zio_taskq_info_t zti = ZTI_SCALE; | |
1341 | row[q] = zti; | |
1342 | break; | |
1343 | } | |
1344 | ||
1345 | case ZTI_MODE_SYNC: { | |
1346 | const zio_taskq_info_t zti = ZTI_SYNC; | |
1347 | row[q] = zti; | |
1348 | break; | |
1349 | } | |
1350 | ||
1351 | case ZTI_MODE_NULL: { | |
1352 | /* | |
1353 | * Can only null the high-priority queues; the general- | |
1354 | * purpose ones have to exist. | |
1355 | */ | |
1356 | if (q != ZIO_TASKQ_ISSUE_HIGH && | |
1357 | q != ZIO_TASKQ_INTERRUPT_HIGH) | |
1358 | break; | |
1359 | ||
1360 | const zio_taskq_info_t zti = ZTI_NULL; | |
1361 | row[q] = zti; | |
1362 | break; | |
1363 | } | |
1364 | ||
1365 | default: | |
1366 | break; | |
1367 | } | |
1368 | ||
1369 | /* Ensure we set a mode */ | |
1370 | if (row[q].zti_mode == ZTI_NMODES) | |
1371 | break; | |
1372 | } | |
1373 | ||
1374 | /* Didn't get a full row, fail */ | |
1375 | if (q < ZIO_TASKQ_TYPES) | |
1376 | return (SET_ERROR(EINVAL)); | |
1377 | ||
1378 | /* Eat trailing space */ | |
1379 | if (next != NULL) | |
1380 | while (isspace(*next)) | |
1381 | next++; | |
1382 | ||
1383 | /* If there's anything left over then fail */ | |
1384 | if (next != NULL && *next != '\0') | |
1385 | return (SET_ERROR(EINVAL)); | |
1386 | ||
1387 | /* Success! Copy it into the real config */ | |
1388 | for (q = 0; q < ZIO_TASKQ_TYPES; q++) | |
1389 | zio_taskqs[t][q] = row[q]; | |
1390 | ||
1391 | return (0); | |
1392 | } | |
1393 | ||
1394 | static int | |
1395 | spa_taskq_param_get(zio_type_t t, char *buf) | |
1396 | { | |
1397 | int pos = 0; | |
1398 | ||
1399 | /* Build paramater string from live config */ | |
1400 | const char *sep = ""; | |
1401 | for (uint_t q = 0; q < ZIO_TASKQ_TYPES; q++) { | |
1402 | const zio_taskq_info_t *zti = &zio_taskqs[t][q]; | |
1403 | if (zti->zti_mode == ZTI_MODE_FIXED) | |
1404 | pos += sprintf(&buf[pos], "%s%s,%u,%u", sep, | |
1405 | modes[zti->zti_mode], zti->zti_count, | |
1406 | zti->zti_value); | |
1407 | else | |
1408 | pos += sprintf(&buf[pos], "%s%s", sep, | |
1409 | modes[zti->zti_mode]); | |
1410 | sep = " "; | |
1411 | } | |
1412 | ||
1413 | buf[pos++] = '\n'; | |
1414 | buf[pos] = '\0'; | |
1415 | ||
1416 | return (pos); | |
1417 | } | |
1418 | ||
1419 | #ifdef __linux__ | |
1420 | static int | |
1421 | spa_taskq_read_param_set(const char *val, zfs_kernel_param_t *kp) | |
1422 | { | |
1423 | char *cfg = kmem_strdup(val); | |
1424 | int err = spa_taskq_param_set(ZIO_TYPE_READ, cfg); | |
1425 | kmem_free(cfg, strlen(val)+1); | |
1426 | return (-err); | |
1427 | } | |
1428 | static int | |
1429 | spa_taskq_read_param_get(char *buf, zfs_kernel_param_t *kp) | |
1430 | { | |
1431 | return (spa_taskq_param_get(ZIO_TYPE_READ, buf)); | |
1432 | } | |
1433 | ||
1434 | static int | |
1435 | spa_taskq_write_param_set(const char *val, zfs_kernel_param_t *kp) | |
1436 | { | |
1437 | char *cfg = kmem_strdup(val); | |
1438 | int err = spa_taskq_param_set(ZIO_TYPE_WRITE, cfg); | |
1439 | kmem_free(cfg, strlen(val)+1); | |
1440 | return (-err); | |
1441 | } | |
1442 | static int | |
1443 | spa_taskq_write_param_get(char *buf, zfs_kernel_param_t *kp) | |
1444 | { | |
1445 | return (spa_taskq_param_get(ZIO_TYPE_WRITE, buf)); | |
1446 | } | |
1447 | #else | |
6930ecbb RN |
1448 | /* |
1449 | * On FreeBSD load-time parameters can be set up before malloc() is available, | |
1450 | * so we have to do all the parsing work on the stack. | |
1451 | */ | |
1452 | #define SPA_TASKQ_PARAM_MAX (128) | |
1453 | ||
1454 | static int | |
1455 | spa_taskq_read_param(ZFS_MODULE_PARAM_ARGS) | |
1456 | { | |
1457 | char buf[SPA_TASKQ_PARAM_MAX]; | |
3bddc4da | 1458 | int err; |
6930ecbb | 1459 | |
3bddc4da | 1460 | (void) spa_taskq_param_get(ZIO_TYPE_READ, buf); |
6930ecbb | 1461 | err = sysctl_handle_string(oidp, buf, sizeof (buf), req); |
3bddc4da | 1462 | if (err || req->newptr == NULL) |
6930ecbb RN |
1463 | return (err); |
1464 | return (spa_taskq_param_set(ZIO_TYPE_READ, buf)); | |
1465 | } | |
1466 | ||
1467 | static int | |
1468 | spa_taskq_write_param(ZFS_MODULE_PARAM_ARGS) | |
1469 | { | |
1470 | char buf[SPA_TASKQ_PARAM_MAX]; | |
3bddc4da | 1471 | int err; |
6930ecbb | 1472 | |
3bddc4da | 1473 | (void) spa_taskq_param_get(ZIO_TYPE_WRITE, buf); |
6930ecbb | 1474 | err = sysctl_handle_string(oidp, buf, sizeof (buf), req); |
3bddc4da | 1475 | if (err || req->newptr == NULL) |
6930ecbb RN |
1476 | return (err); |
1477 | return (spa_taskq_param_set(ZIO_TYPE_WRITE, buf)); | |
1478 | } | |
1479 | #endif | |
1480 | #endif /* _KERNEL */ | |
1481 | ||
7ef5e54e AL |
1482 | /* |
1483 | * Dispatch a task to the appropriate taskq for the ZFS I/O type and priority. | |
1484 | * Note that a type may have multiple discrete taskqs to avoid lock contention | |
3bd4df38 | 1485 | * on the taskq itself. |
7ef5e54e | 1486 | */ |
3bd4df38 EN |
1487 | static taskq_t * |
1488 | spa_taskq_dispatch_select(spa_t *spa, zio_type_t t, zio_taskq_type_t q, | |
1489 | zio_t *zio) | |
7ef5e54e AL |
1490 | { |
1491 | spa_taskqs_t *tqs = &spa->spa_zio_taskq[t][q]; | |
1492 | taskq_t *tq; | |
1493 | ||
1494 | ASSERT3P(tqs->stqs_taskq, !=, NULL); | |
1495 | ASSERT3U(tqs->stqs_count, !=, 0); | |
1496 | ||
3bd4df38 EN |
1497 | if ((t == ZIO_TYPE_WRITE) && (q == ZIO_TASKQ_ISSUE) && |
1498 | (zio != NULL) && (zio->io_wr_iss_tq != NULL)) { | |
1499 | /* dispatch to assigned write issue taskq */ | |
1500 | tq = zio->io_wr_iss_tq; | |
1501 | return (tq); | |
1502 | } | |
1503 | ||
7ef5e54e AL |
1504 | if (tqs->stqs_count == 1) { |
1505 | tq = tqs->stqs_taskq[0]; | |
1506 | } else { | |
c12936b1 | 1507 | tq = tqs->stqs_taskq[((uint64_t)gethrtime()) % tqs->stqs_count]; |
428870ff | 1508 | } |
3bd4df38 EN |
1509 | return (tq); |
1510 | } | |
7ef5e54e | 1511 | |
3bd4df38 EN |
1512 | void |
1513 | spa_taskq_dispatch_ent(spa_t *spa, zio_type_t t, zio_taskq_type_t q, | |
1514 | task_func_t *func, void *arg, uint_t flags, taskq_ent_t *ent, | |
1515 | zio_t *zio) | |
1516 | { | |
1517 | taskq_t *tq = spa_taskq_dispatch_select(spa, t, q, zio); | |
7ef5e54e | 1518 | taskq_dispatch_ent(tq, func, arg, flags, ent); |
428870ff BB |
1519 | } |
1520 | ||
044baf00 BB |
1521 | /* |
1522 | * Same as spa_taskq_dispatch_ent() but block on the task until completion. | |
1523 | */ | |
1524 | void | |
1525 | spa_taskq_dispatch_sync(spa_t *spa, zio_type_t t, zio_taskq_type_t q, | |
1526 | task_func_t *func, void *arg, uint_t flags) | |
1527 | { | |
3bd4df38 EN |
1528 | taskq_t *tq = spa_taskq_dispatch_select(spa, t, q, NULL); |
1529 | taskqid_t id = taskq_dispatch(tq, func, arg, flags); | |
044baf00 BB |
1530 | if (id) |
1531 | taskq_wait_id(tq, id); | |
1532 | } | |
1533 | ||
428870ff BB |
1534 | static void |
1535 | spa_create_zio_taskqs(spa_t *spa) | |
1536 | { | |
1c27024e DB |
1537 | for (int t = 0; t < ZIO_TYPES; t++) { |
1538 | for (int q = 0; q < ZIO_TASKQ_TYPES; q++) { | |
7ef5e54e | 1539 | spa_taskqs_init(spa, t, q); |
428870ff BB |
1540 | } |
1541 | } | |
1542 | } | |
9babb374 | 1543 | |
7b89a549 | 1544 | #if defined(_KERNEL) && defined(HAVE_SPA_THREAD) |
428870ff BB |
1545 | static void |
1546 | spa_thread(void *arg) | |
1547 | { | |
93ce2b4c | 1548 | psetid_t zio_taskq_psrset_bind = PS_NONE; |
428870ff | 1549 | callb_cpr_t cprinfo; |
9babb374 | 1550 | |
428870ff BB |
1551 | spa_t *spa = arg; |
1552 | user_t *pu = PTOU(curproc); | |
9babb374 | 1553 | |
428870ff BB |
1554 | CALLB_CPR_INIT(&cprinfo, &spa->spa_proc_lock, callb_generic_cpr, |
1555 | spa->spa_name); | |
9babb374 | 1556 | |
428870ff BB |
1557 | ASSERT(curproc != &p0); |
1558 | (void) snprintf(pu->u_psargs, sizeof (pu->u_psargs), | |
1559 | "zpool-%s", spa->spa_name); | |
1560 | (void) strlcpy(pu->u_comm, pu->u_psargs, sizeof (pu->u_comm)); | |
1561 | ||
1562 | /* bind this thread to the requested psrset */ | |
1563 | if (zio_taskq_psrset_bind != PS_NONE) { | |
1564 | pool_lock(); | |
1565 | mutex_enter(&cpu_lock); | |
1566 | mutex_enter(&pidlock); | |
1567 | mutex_enter(&curproc->p_lock); | |
1568 | ||
1569 | if (cpupart_bind_thread(curthread, zio_taskq_psrset_bind, | |
1570 | 0, NULL, NULL) == 0) { | |
1571 | curthread->t_bind_pset = zio_taskq_psrset_bind; | |
1572 | } else { | |
1573 | cmn_err(CE_WARN, | |
1574 | "Couldn't bind process for zfs pool \"%s\" to " | |
1575 | "pset %d\n", spa->spa_name, zio_taskq_psrset_bind); | |
1576 | } | |
1577 | ||
1578 | mutex_exit(&curproc->p_lock); | |
1579 | mutex_exit(&pidlock); | |
1580 | mutex_exit(&cpu_lock); | |
1581 | pool_unlock(); | |
1582 | } | |
1583 | ||
b5e60918 | 1584 | #ifdef HAVE_SYSDC |
428870ff BB |
1585 | if (zio_taskq_sysdc) { |
1586 | sysdc_thread_enter(curthread, 100, 0); | |
1587 | } | |
b5e60918 | 1588 | #endif |
428870ff BB |
1589 | |
1590 | spa->spa_proc = curproc; | |
1591 | spa->spa_did = curthread->t_did; | |
1592 | ||
1593 | spa_create_zio_taskqs(spa); | |
1594 | ||
1595 | mutex_enter(&spa->spa_proc_lock); | |
1596 | ASSERT(spa->spa_proc_state == SPA_PROC_CREATED); | |
1597 | ||
1598 | spa->spa_proc_state = SPA_PROC_ACTIVE; | |
1599 | cv_broadcast(&spa->spa_proc_cv); | |
1600 | ||
1601 | CALLB_CPR_SAFE_BEGIN(&cprinfo); | |
1602 | while (spa->spa_proc_state == SPA_PROC_ACTIVE) | |
1603 | cv_wait(&spa->spa_proc_cv, &spa->spa_proc_lock); | |
1604 | CALLB_CPR_SAFE_END(&cprinfo, &spa->spa_proc_lock); | |
1605 | ||
1606 | ASSERT(spa->spa_proc_state == SPA_PROC_DEACTIVATE); | |
1607 | spa->spa_proc_state = SPA_PROC_GONE; | |
1608 | spa->spa_proc = &p0; | |
1609 | cv_broadcast(&spa->spa_proc_cv); | |
1610 | CALLB_CPR_EXIT(&cprinfo); /* drops spa_proc_lock */ | |
1611 | ||
1612 | mutex_enter(&curproc->p_lock); | |
1613 | lwp_exit(); | |
1614 | } | |
1615 | #endif | |
1616 | ||
95f71c01 EN |
1617 | extern metaslab_ops_t *metaslab_allocator(spa_t *spa); |
1618 | ||
428870ff BB |
1619 | /* |
1620 | * Activate an uninitialized pool. | |
1621 | */ | |
1622 | static void | |
da92d5cb | 1623 | spa_activate(spa_t *spa, spa_mode_t mode) |
428870ff | 1624 | { |
95f71c01 | 1625 | metaslab_ops_t *msp = metaslab_allocator(spa); |
428870ff BB |
1626 | ASSERT(spa->spa_state == POOL_STATE_UNINITIALIZED); |
1627 | ||
1628 | spa->spa_state = POOL_STATE_ACTIVE; | |
1629 | spa->spa_mode = mode; | |
e39fe05b | 1630 | spa->spa_read_spacemaps = spa_mode_readable_spacemaps; |
428870ff | 1631 | |
95f71c01 EN |
1632 | spa->spa_normal_class = metaslab_class_create(spa, msp); |
1633 | spa->spa_log_class = metaslab_class_create(spa, msp); | |
1634 | spa->spa_embedded_log_class = metaslab_class_create(spa, msp); | |
1635 | spa->spa_special_class = metaslab_class_create(spa, msp); | |
1636 | spa->spa_dedup_class = metaslab_class_create(spa, msp); | |
428870ff BB |
1637 | |
1638 | /* Try to create a covering process */ | |
1639 | mutex_enter(&spa->spa_proc_lock); | |
1640 | ASSERT(spa->spa_proc_state == SPA_PROC_NONE); | |
1641 | ASSERT(spa->spa_proc == &p0); | |
1642 | spa->spa_did = 0; | |
1643 | ||
7b89a549 | 1644 | #ifdef HAVE_SPA_THREAD |
428870ff BB |
1645 | /* Only create a process if we're going to be around a while. */ |
1646 | if (spa_create_process && strcmp(spa->spa_name, TRYIMPORT_NAME) != 0) { | |
1647 | if (newproc(spa_thread, (caddr_t)spa, syscid, maxclsyspri, | |
1648 | NULL, 0) == 0) { | |
1649 | spa->spa_proc_state = SPA_PROC_CREATED; | |
1650 | while (spa->spa_proc_state == SPA_PROC_CREATED) { | |
1651 | cv_wait(&spa->spa_proc_cv, | |
1652 | &spa->spa_proc_lock); | |
9babb374 | 1653 | } |
428870ff BB |
1654 | ASSERT(spa->spa_proc_state == SPA_PROC_ACTIVE); |
1655 | ASSERT(spa->spa_proc != &p0); | |
1656 | ASSERT(spa->spa_did != 0); | |
1657 | } else { | |
1658 | #ifdef _KERNEL | |
1659 | cmn_err(CE_WARN, | |
1660 | "Couldn't create process for zfs pool \"%s\"\n", | |
1661 | spa->spa_name); | |
1662 | #endif | |
b128c09f | 1663 | } |
34dc7c2f | 1664 | } |
7b89a549 | 1665 | #endif /* HAVE_SPA_THREAD */ |
428870ff BB |
1666 | mutex_exit(&spa->spa_proc_lock); |
1667 | ||
1668 | /* If we didn't create a process, we need to create our taskqs. */ | |
1669 | if (spa->spa_proc == &p0) { | |
1670 | spa_create_zio_taskqs(spa); | |
1671 | } | |
34dc7c2f | 1672 | |
619f0976 GW |
1673 | for (size_t i = 0; i < TXG_SIZE; i++) { |
1674 | spa->spa_txg_zio[i] = zio_root(spa, NULL, NULL, | |
1675 | ZIO_FLAG_CANFAIL); | |
1676 | } | |
a1d477c2 | 1677 | |
b128c09f BB |
1678 | list_create(&spa->spa_config_dirty_list, sizeof (vdev_t), |
1679 | offsetof(vdev_t, vdev_config_dirty_node)); | |
0c66c32d JG |
1680 | list_create(&spa->spa_evicting_os_list, sizeof (objset_t), |
1681 | offsetof(objset_t, os_evicting_node)); | |
b128c09f BB |
1682 | list_create(&spa->spa_state_dirty_list, sizeof (vdev_t), |
1683 | offsetof(vdev_t, vdev_state_dirty_node)); | |
34dc7c2f | 1684 | |
4747a7d3 | 1685 | txg_list_create(&spa->spa_vdev_txg_list, spa, |
34dc7c2f BB |
1686 | offsetof(struct vdev, vdev_txg_node)); |
1687 | ||
1688 | avl_create(&spa->spa_errlist_scrub, | |
1689 | spa_error_entry_compare, sizeof (spa_error_entry_t), | |
1690 | offsetof(spa_error_entry_t, se_avl)); | |
1691 | avl_create(&spa->spa_errlist_last, | |
1692 | spa_error_entry_compare, sizeof (spa_error_entry_t), | |
1693 | offsetof(spa_error_entry_t, se_avl)); | |
e8cf3a4f AP |
1694 | avl_create(&spa->spa_errlist_healed, |
1695 | spa_error_entry_compare, sizeof (spa_error_entry_t), | |
1696 | offsetof(spa_error_entry_t, se_avl)); | |
a0bd735a | 1697 | |
4759342a JL |
1698 | spa_activate_os(spa); |
1699 | ||
b5256303 TC |
1700 | spa_keystore_init(&spa->spa_keystore); |
1701 | ||
a0bd735a BP |
1702 | /* |
1703 | * This taskq is used to perform zvol-minor-related tasks | |
1704 | * asynchronously. This has several advantages, including easy | |
d0249a4b | 1705 | * resolution of various deadlocks. |
a0bd735a BP |
1706 | * |
1707 | * The taskq must be single threaded to ensure tasks are always | |
1708 | * processed in the order in which they were dispatched. | |
1709 | * | |
1710 | * A taskq per pool allows one to keep the pools independent. | |
1711 | * This way if one pool is suspended, it will not impact another. | |
1712 | * | |
1713 | * The preferred location to dispatch a zvol minor task is a sync | |
1714 | * task. In this context, there is easy access to the spa_t and minimal | |
1715 | * error handling is required because the sync task must succeed. | |
1716 | */ | |
1717 | spa->spa_zvol_taskq = taskq_create("z_zvol", 1, defclsyspri, | |
1718 | 1, INT_MAX, 0); | |
1de321e6 | 1719 | |
342357cd AM |
1720 | /* |
1721 | * The taskq to preload metaslabs. | |
1722 | */ | |
1723 | spa->spa_metaslab_taskq = taskq_create("z_metaslab", | |
1724 | metaslab_preload_pct, maxclsyspri, 1, INT_MAX, | |
1725 | TASKQ_DYNAMIC | TASKQ_THREADS_CPU_PCT); | |
1726 | ||
77d8a0f1 | 1727 | /* |
1728 | * Taskq dedicated to prefetcher threads: this is used to prevent the | |
1729 | * pool traverse code from monopolizing the global (and limited) | |
1730 | * system_taskq by inappropriately scheduling long running tasks on it. | |
1731 | */ | |
60a4c7d2 PD |
1732 | spa->spa_prefetch_taskq = taskq_create("z_prefetch", 100, |
1733 | defclsyspri, 1, INT_MAX, TASKQ_DYNAMIC | TASKQ_THREADS_CPU_PCT); | |
77d8a0f1 | 1734 | |
1de321e6 JX |
1735 | /* |
1736 | * The taskq to upgrade datasets in this pool. Currently used by | |
9c5167d1 | 1737 | * feature SPA_FEATURE_USEROBJ_ACCOUNTING/SPA_FEATURE_PROJECT_QUOTA. |
1de321e6 | 1738 | */ |
60a4c7d2 PD |
1739 | spa->spa_upgrade_taskq = taskq_create("z_upgrade", 100, |
1740 | defclsyspri, 1, INT_MAX, TASKQ_DYNAMIC | TASKQ_THREADS_CPU_PCT); | |
34dc7c2f BB |
1741 | } |
1742 | ||
1743 | /* | |
1744 | * Opposite of spa_activate(). | |
1745 | */ | |
1746 | static void | |
1747 | spa_deactivate(spa_t *spa) | |
1748 | { | |
34dc7c2f BB |
1749 | ASSERT(spa->spa_sync_on == B_FALSE); |
1750 | ASSERT(spa->spa_dsl_pool == NULL); | |
1751 | ASSERT(spa->spa_root_vdev == NULL); | |
9babb374 | 1752 | ASSERT(spa->spa_async_zio_root == NULL); |
34dc7c2f BB |
1753 | ASSERT(spa->spa_state != POOL_STATE_UNINITIALIZED); |
1754 | ||
0c66c32d JG |
1755 | spa_evicting_os_wait(spa); |
1756 | ||
a0bd735a BP |
1757 | if (spa->spa_zvol_taskq) { |
1758 | taskq_destroy(spa->spa_zvol_taskq); | |
1759 | spa->spa_zvol_taskq = NULL; | |
1760 | } | |
1761 | ||
342357cd AM |
1762 | if (spa->spa_metaslab_taskq) { |
1763 | taskq_destroy(spa->spa_metaslab_taskq); | |
1764 | spa->spa_metaslab_taskq = NULL; | |
1765 | } | |
1766 | ||
77d8a0f1 | 1767 | if (spa->spa_prefetch_taskq) { |
1768 | taskq_destroy(spa->spa_prefetch_taskq); | |
1769 | spa->spa_prefetch_taskq = NULL; | |
1770 | } | |
1771 | ||
1de321e6 JX |
1772 | if (spa->spa_upgrade_taskq) { |
1773 | taskq_destroy(spa->spa_upgrade_taskq); | |
1774 | spa->spa_upgrade_taskq = NULL; | |
1775 | } | |
1776 | ||
34dc7c2f BB |
1777 | txg_list_destroy(&spa->spa_vdev_txg_list); |
1778 | ||
b128c09f | 1779 | list_destroy(&spa->spa_config_dirty_list); |
0c66c32d | 1780 | list_destroy(&spa->spa_evicting_os_list); |
b128c09f | 1781 | list_destroy(&spa->spa_state_dirty_list); |
34dc7c2f | 1782 | |
57ddcda1 | 1783 | taskq_cancel_id(system_delay_taskq, spa->spa_deadman_tqid); |
cc92e9d0 | 1784 | |
1c27024e DB |
1785 | for (int t = 0; t < ZIO_TYPES; t++) { |
1786 | for (int q = 0; q < ZIO_TASKQ_TYPES; q++) { | |
7ef5e54e | 1787 | spa_taskqs_fini(spa, t, q); |
b128c09f | 1788 | } |
34dc7c2f BB |
1789 | } |
1790 | ||
a1d477c2 MA |
1791 | for (size_t i = 0; i < TXG_SIZE; i++) { |
1792 | ASSERT3P(spa->spa_txg_zio[i], !=, NULL); | |
1793 | VERIFY0(zio_wait(spa->spa_txg_zio[i])); | |
1794 | spa->spa_txg_zio[i] = NULL; | |
1795 | } | |
1796 | ||
34dc7c2f BB |
1797 | metaslab_class_destroy(spa->spa_normal_class); |
1798 | spa->spa_normal_class = NULL; | |
1799 | ||
1800 | metaslab_class_destroy(spa->spa_log_class); | |
1801 | spa->spa_log_class = NULL; | |
1802 | ||
aa755b35 MA |
1803 | metaslab_class_destroy(spa->spa_embedded_log_class); |
1804 | spa->spa_embedded_log_class = NULL; | |
1805 | ||
cc99f275 DB |
1806 | metaslab_class_destroy(spa->spa_special_class); |
1807 | spa->spa_special_class = NULL; | |
1808 | ||
1809 | metaslab_class_destroy(spa->spa_dedup_class); | |
1810 | spa->spa_dedup_class = NULL; | |
1811 | ||
34dc7c2f BB |
1812 | /* |
1813 | * If this was part of an import or the open otherwise failed, we may | |
1814 | * still have errors left in the queues. Empty them just in case. | |
1815 | */ | |
1816 | spa_errlog_drain(spa); | |
34dc7c2f BB |
1817 | avl_destroy(&spa->spa_errlist_scrub); |
1818 | avl_destroy(&spa->spa_errlist_last); | |
e8cf3a4f | 1819 | avl_destroy(&spa->spa_errlist_healed); |
34dc7c2f | 1820 | |
b5256303 TC |
1821 | spa_keystore_fini(&spa->spa_keystore); |
1822 | ||
34dc7c2f | 1823 | spa->spa_state = POOL_STATE_UNINITIALIZED; |
428870ff BB |
1824 | |
1825 | mutex_enter(&spa->spa_proc_lock); | |
1826 | if (spa->spa_proc_state != SPA_PROC_NONE) { | |
1827 | ASSERT(spa->spa_proc_state == SPA_PROC_ACTIVE); | |
1828 | spa->spa_proc_state = SPA_PROC_DEACTIVATE; | |
1829 | cv_broadcast(&spa->spa_proc_cv); | |
1830 | while (spa->spa_proc_state == SPA_PROC_DEACTIVATE) { | |
1831 | ASSERT(spa->spa_proc != &p0); | |
1832 | cv_wait(&spa->spa_proc_cv, &spa->spa_proc_lock); | |
1833 | } | |
1834 | ASSERT(spa->spa_proc_state == SPA_PROC_GONE); | |
1835 | spa->spa_proc_state = SPA_PROC_NONE; | |
1836 | } | |
1837 | ASSERT(spa->spa_proc == &p0); | |
1838 | mutex_exit(&spa->spa_proc_lock); | |
1839 | ||
1840 | /* | |
1841 | * We want to make sure spa_thread() has actually exited the ZFS | |
1842 | * module, so that the module can't be unloaded out from underneath | |
1843 | * it. | |
1844 | */ | |
1845 | if (spa->spa_did != 0) { | |
1846 | thread_join(spa->spa_did); | |
1847 | spa->spa_did = 0; | |
1848 | } | |
4759342a JL |
1849 | |
1850 | spa_deactivate_os(spa); | |
1851 | ||
34dc7c2f BB |
1852 | } |
1853 | ||
1854 | /* | |
1855 | * Verify a pool configuration, and construct the vdev tree appropriately. This | |
1856 | * will create all the necessary vdevs in the appropriate layout, with each vdev | |
1857 | * in the CLOSED state. This will prep the pool before open/creation/import. | |
1858 | * All vdev validation is done by the vdev_alloc() routine. | |
1859 | */ | |
4a22ba5b | 1860 | int |
34dc7c2f BB |
1861 | spa_config_parse(spa_t *spa, vdev_t **vdp, nvlist_t *nv, vdev_t *parent, |
1862 | uint_t id, int atype) | |
1863 | { | |
1864 | nvlist_t **child; | |
9babb374 | 1865 | uint_t children; |
34dc7c2f BB |
1866 | int error; |
1867 | ||
1868 | if ((error = vdev_alloc(spa, vdp, nv, parent, id, atype)) != 0) | |
1869 | return (error); | |
1870 | ||
1871 | if ((*vdp)->vdev_ops->vdev_op_leaf) | |
1872 | return (0); | |
1873 | ||
b128c09f BB |
1874 | error = nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, |
1875 | &child, &children); | |
1876 | ||
1877 | if (error == ENOENT) | |
1878 | return (0); | |
1879 | ||
1880 | if (error) { | |
34dc7c2f BB |
1881 | vdev_free(*vdp); |
1882 | *vdp = NULL; | |
2e528b49 | 1883 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
1884 | } |
1885 | ||
1c27024e | 1886 | for (int c = 0; c < children; c++) { |
34dc7c2f BB |
1887 | vdev_t *vd; |
1888 | if ((error = spa_config_parse(spa, &vd, child[c], *vdp, c, | |
1889 | atype)) != 0) { | |
1890 | vdev_free(*vdp); | |
1891 | *vdp = NULL; | |
1892 | return (error); | |
1893 | } | |
1894 | } | |
1895 | ||
1896 | ASSERT(*vdp != NULL); | |
1897 | ||
1898 | return (0); | |
1899 | } | |
1900 | ||
93e28d66 SD |
1901 | static boolean_t |
1902 | spa_should_flush_logs_on_unload(spa_t *spa) | |
1903 | { | |
1904 | if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) | |
1905 | return (B_FALSE); | |
1906 | ||
1907 | if (!spa_writeable(spa)) | |
1908 | return (B_FALSE); | |
1909 | ||
1910 | if (!spa->spa_sync_on) | |
1911 | return (B_FALSE); | |
1912 | ||
1913 | if (spa_state(spa) != POOL_STATE_EXPORTED) | |
1914 | return (B_FALSE); | |
1915 | ||
1916 | if (zfs_keep_log_spacemaps_at_export) | |
1917 | return (B_FALSE); | |
1918 | ||
1919 | return (B_TRUE); | |
1920 | } | |
1921 | ||
1922 | /* | |
1923 | * Opens a transaction that will set the flag that will instruct | |
1924 | * spa_sync to attempt to flush all the metaslabs for that txg. | |
1925 | */ | |
1926 | static void | |
1927 | spa_unload_log_sm_flush_all(spa_t *spa) | |
1928 | { | |
1929 | dmu_tx_t *tx = dmu_tx_create_dd(spa_get_dsl(spa)->dp_mos_dir); | |
1930 | VERIFY0(dmu_tx_assign(tx, TXG_WAIT)); | |
1931 | ||
1932 | ASSERT3U(spa->spa_log_flushall_txg, ==, 0); | |
1933 | spa->spa_log_flushall_txg = dmu_tx_get_txg(tx); | |
1934 | ||
1935 | dmu_tx_commit(tx); | |
1936 | txg_wait_synced(spa_get_dsl(spa), spa->spa_log_flushall_txg); | |
1937 | } | |
1938 | ||
1939 | static void | |
1940 | spa_unload_log_sm_metadata(spa_t *spa) | |
1941 | { | |
1942 | void *cookie = NULL; | |
1943 | spa_log_sm_t *sls; | |
b3ad3f48 AM |
1944 | log_summary_entry_t *e; |
1945 | ||
93e28d66 SD |
1946 | while ((sls = avl_destroy_nodes(&spa->spa_sm_logs_by_txg, |
1947 | &cookie)) != NULL) { | |
1948 | VERIFY0(sls->sls_mscount); | |
1949 | kmem_free(sls, sizeof (spa_log_sm_t)); | |
1950 | } | |
1951 | ||
b3ad3f48 | 1952 | while ((e = list_remove_head(&spa->spa_log_summary)) != NULL) { |
93e28d66 | 1953 | VERIFY0(e->lse_mscount); |
93e28d66 SD |
1954 | kmem_free(e, sizeof (log_summary_entry_t)); |
1955 | } | |
1956 | ||
1957 | spa->spa_unflushed_stats.sus_nblocks = 0; | |
1958 | spa->spa_unflushed_stats.sus_memused = 0; | |
1959 | spa->spa_unflushed_stats.sus_blocklimit = 0; | |
1960 | } | |
1961 | ||
37f03da8 SH |
1962 | static void |
1963 | spa_destroy_aux_threads(spa_t *spa) | |
1964 | { | |
1965 | if (spa->spa_condense_zthr != NULL) { | |
1966 | zthr_destroy(spa->spa_condense_zthr); | |
1967 | spa->spa_condense_zthr = NULL; | |
1968 | } | |
1969 | if (spa->spa_checkpoint_discard_zthr != NULL) { | |
1970 | zthr_destroy(spa->spa_checkpoint_discard_zthr); | |
1971 | spa->spa_checkpoint_discard_zthr = NULL; | |
1972 | } | |
1973 | if (spa->spa_livelist_delete_zthr != NULL) { | |
1974 | zthr_destroy(spa->spa_livelist_delete_zthr); | |
1975 | spa->spa_livelist_delete_zthr = NULL; | |
1976 | } | |
1977 | if (spa->spa_livelist_condense_zthr != NULL) { | |
1978 | zthr_destroy(spa->spa_livelist_condense_zthr); | |
1979 | spa->spa_livelist_condense_zthr = NULL; | |
1980 | } | |
5caeef02 DB |
1981 | if (spa->spa_raidz_expand_zthr != NULL) { |
1982 | zthr_destroy(spa->spa_raidz_expand_zthr); | |
1983 | spa->spa_raidz_expand_zthr = NULL; | |
1984 | } | |
37f03da8 SH |
1985 | } |
1986 | ||
34dc7c2f BB |
1987 | /* |
1988 | * Opposite of spa_load(). | |
1989 | */ | |
1990 | static void | |
1991 | spa_unload(spa_t *spa) | |
1992 | { | |
b128c09f | 1993 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); |
93e28d66 | 1994 | ASSERT(spa_state(spa) != POOL_STATE_UNINITIALIZED); |
b128c09f | 1995 | |
ca95f70d | 1996 | spa_import_progress_remove(spa_guid(spa)); |
4a0ee12a PZ |
1997 | spa_load_note(spa, "UNLOADING"); |
1998 | ||
e60e158e JG |
1999 | spa_wake_waiters(spa); |
2000 | ||
93e28d66 | 2001 | /* |
2fb52853 GA |
2002 | * If we have set the spa_final_txg, we have already performed the |
2003 | * tasks below in spa_export_common(). We should not redo it here since | |
2004 | * we delay the final TXGs beyond what spa_final_txg is set at. | |
93e28d66 | 2005 | */ |
2fb52853 GA |
2006 | if (spa->spa_final_txg == UINT64_MAX) { |
2007 | /* | |
2008 | * If the log space map feature is enabled and the pool is | |
2009 | * getting exported (but not destroyed), we want to spend some | |
2010 | * time flushing as many metaslabs as we can in an attempt to | |
2011 | * destroy log space maps and save import time. | |
2012 | */ | |
2013 | if (spa_should_flush_logs_on_unload(spa)) | |
2014 | spa_unload_log_sm_flush_all(spa); | |
93e28d66 | 2015 | |
2fb52853 GA |
2016 | /* |
2017 | * Stop async tasks. | |
2018 | */ | |
2019 | spa_async_suspend(spa); | |
34dc7c2f | 2020 | |
2fb52853 GA |
2021 | if (spa->spa_root_vdev) { |
2022 | vdev_t *root_vdev = spa->spa_root_vdev; | |
2023 | vdev_initialize_stop_all(root_vdev, | |
2024 | VDEV_INITIALIZE_ACTIVE); | |
2025 | vdev_trim_stop_all(root_vdev, VDEV_TRIM_ACTIVE); | |
2026 | vdev_autotrim_stop_all(spa); | |
2027 | vdev_rebuild_stop_all(spa); | |
2028 | } | |
619f0976 GW |
2029 | } |
2030 | ||
34dc7c2f BB |
2031 | /* |
2032 | * Stop syncing. | |
2033 | */ | |
2034 | if (spa->spa_sync_on) { | |
2035 | txg_sync_stop(spa->spa_dsl_pool); | |
2036 | spa->spa_sync_on = B_FALSE; | |
2037 | } | |
2038 | ||
4e21fd06 | 2039 | /* |
93e28d66 SD |
2040 | * This ensures that there is no async metaslab prefetching |
2041 | * while we attempt to unload the spa. | |
4e21fd06 | 2042 | */ |
342357cd | 2043 | taskq_wait(spa->spa_metaslab_taskq); |
4e21fd06 | 2044 | |
379ca9cf OF |
2045 | if (spa->spa_mmp.mmp_thread) |
2046 | mmp_thread_stop(spa); | |
2047 | ||
34dc7c2f | 2048 | /* |
b128c09f | 2049 | * Wait for any outstanding async I/O to complete. |
34dc7c2f | 2050 | */ |
9babb374 | 2051 | if (spa->spa_async_zio_root != NULL) { |
1c27024e | 2052 | for (int i = 0; i < max_ncpus; i++) |
e022864d MA |
2053 | (void) zio_wait(spa->spa_async_zio_root[i]); |
2054 | kmem_free(spa->spa_async_zio_root, max_ncpus * sizeof (void *)); | |
9babb374 BB |
2055 | spa->spa_async_zio_root = NULL; |
2056 | } | |
34dc7c2f | 2057 | |
a1d477c2 MA |
2058 | if (spa->spa_vdev_removal != NULL) { |
2059 | spa_vdev_removal_destroy(spa->spa_vdev_removal); | |
2060 | spa->spa_vdev_removal = NULL; | |
2061 | } | |
2062 | ||
37f03da8 | 2063 | spa_destroy_aux_threads(spa); |
d2734cce | 2064 | |
a1d477c2 MA |
2065 | spa_condense_fini(spa); |
2066 | ||
428870ff BB |
2067 | bpobj_close(&spa->spa_deferred_bpobj); |
2068 | ||
619f0976 | 2069 | spa_config_enter(spa, SCL_ALL, spa, RW_WRITER); |
93cf2076 GW |
2070 | |
2071 | /* | |
2072 | * Close all vdevs. | |
2073 | */ | |
2074 | if (spa->spa_root_vdev) | |
2075 | vdev_free(spa->spa_root_vdev); | |
2076 | ASSERT(spa->spa_root_vdev == NULL); | |
2077 | ||
34dc7c2f BB |
2078 | /* |
2079 | * Close the dsl pool. | |
2080 | */ | |
2081 | if (spa->spa_dsl_pool) { | |
2082 | dsl_pool_close(spa->spa_dsl_pool); | |
2083 | spa->spa_dsl_pool = NULL; | |
428870ff | 2084 | spa->spa_meta_objset = NULL; |
34dc7c2f BB |
2085 | } |
2086 | ||
428870ff | 2087 | ddt_unload(spa); |
67a1b037 | 2088 | brt_unload(spa); |
93e28d66 | 2089 | spa_unload_log_sm_metadata(spa); |
428870ff | 2090 | |
fb5f0bc8 BB |
2091 | /* |
2092 | * Drop and purge level 2 cache | |
2093 | */ | |
2094 | spa_l2cache_drop(spa); | |
2095 | ||
34dc7c2f | 2096 | if (spa->spa_spares.sav_vdevs) { |
cfb49616 RY |
2097 | for (int i = 0; i < spa->spa_spares.sav_count; i++) |
2098 | vdev_free(spa->spa_spares.sav_vdevs[i]); | |
34dc7c2f BB |
2099 | kmem_free(spa->spa_spares.sav_vdevs, |
2100 | spa->spa_spares.sav_count * sizeof (void *)); | |
2101 | spa->spa_spares.sav_vdevs = NULL; | |
2102 | } | |
2103 | if (spa->spa_spares.sav_config) { | |
2104 | nvlist_free(spa->spa_spares.sav_config); | |
2105 | spa->spa_spares.sav_config = NULL; | |
2106 | } | |
b128c09f | 2107 | spa->spa_spares.sav_count = 0; |
34dc7c2f | 2108 | |
34dc7c2f | 2109 | if (spa->spa_l2cache.sav_vdevs) { |
cfb49616 RY |
2110 | for (int i = 0; i < spa->spa_l2cache.sav_count; i++) { |
2111 | vdev_clear_stats(spa->spa_l2cache.sav_vdevs[i]); | |
2112 | vdev_free(spa->spa_l2cache.sav_vdevs[i]); | |
2113 | } | |
34dc7c2f BB |
2114 | kmem_free(spa->spa_l2cache.sav_vdevs, |
2115 | spa->spa_l2cache.sav_count * sizeof (void *)); | |
2116 | spa->spa_l2cache.sav_vdevs = NULL; | |
2117 | } | |
2118 | if (spa->spa_l2cache.sav_config) { | |
2119 | nvlist_free(spa->spa_l2cache.sav_config); | |
2120 | spa->spa_l2cache.sav_config = NULL; | |
2121 | } | |
b128c09f | 2122 | spa->spa_l2cache.sav_count = 0; |
34dc7c2f BB |
2123 | |
2124 | spa->spa_async_suspended = 0; | |
fb5f0bc8 | 2125 | |
a1d477c2 MA |
2126 | spa->spa_indirect_vdevs_loaded = B_FALSE; |
2127 | ||
d96eb2b1 DM |
2128 | if (spa->spa_comment != NULL) { |
2129 | spa_strfree(spa->spa_comment); | |
2130 | spa->spa_comment = NULL; | |
2131 | } | |
658fb802 CB |
2132 | if (spa->spa_compatibility != NULL) { |
2133 | spa_strfree(spa->spa_compatibility); | |
2134 | spa->spa_compatibility = NULL; | |
2135 | } | |
d96eb2b1 | 2136 | |
5caeef02 DB |
2137 | spa->spa_raidz_expand = NULL; |
2138 | ||
619f0976 | 2139 | spa_config_exit(spa, SCL_ALL, spa); |
34dc7c2f BB |
2140 | } |
2141 | ||
2142 | /* | |
2143 | * Load (or re-load) the current list of vdevs describing the active spares for | |
2144 | * this pool. When this is called, we have some form of basic information in | |
2145 | * 'spa_spares.sav_config'. We parse this into vdevs, try to open them, and | |
2146 | * then re-generate a more complete list including status information. | |
2147 | */ | |
a1d477c2 | 2148 | void |
34dc7c2f BB |
2149 | spa_load_spares(spa_t *spa) |
2150 | { | |
2151 | nvlist_t **spares; | |
2152 | uint_t nspares; | |
2153 | int i; | |
2154 | vdev_t *vd, *tvd; | |
2155 | ||
d2734cce SD |
2156 | #ifndef _KERNEL |
2157 | /* | |
2158 | * zdb opens both the current state of the pool and the | |
2159 | * checkpointed state (if present), with a different spa_t. | |
2160 | * | |
2161 | * As spare vdevs are shared among open pools, we skip loading | |
2162 | * them when we load the checkpointed state of the pool. | |
2163 | */ | |
2164 | if (!spa_writeable(spa)) | |
2165 | return; | |
2166 | #endif | |
2167 | ||
b128c09f BB |
2168 | ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL); |
2169 | ||
34dc7c2f BB |
2170 | /* |
2171 | * First, close and free any existing spare vdevs. | |
2172 | */ | |
cfb49616 RY |
2173 | if (spa->spa_spares.sav_vdevs) { |
2174 | for (i = 0; i < spa->spa_spares.sav_count; i++) { | |
2175 | vd = spa->spa_spares.sav_vdevs[i]; | |
2176 | ||
2177 | /* Undo the call to spa_activate() below */ | |
2178 | if ((tvd = spa_lookup_by_guid(spa, vd->vdev_guid, | |
2179 | B_FALSE)) != NULL && tvd->vdev_isspare) | |
2180 | spa_spare_remove(tvd); | |
2181 | vdev_close(vd); | |
2182 | vdev_free(vd); | |
2183 | } | |
34dc7c2f | 2184 | |
34dc7c2f BB |
2185 | kmem_free(spa->spa_spares.sav_vdevs, |
2186 | spa->spa_spares.sav_count * sizeof (void *)); | |
cfb49616 | 2187 | } |
34dc7c2f BB |
2188 | |
2189 | if (spa->spa_spares.sav_config == NULL) | |
2190 | nspares = 0; | |
2191 | else | |
65ad5d11 AJ |
2192 | VERIFY0(nvlist_lookup_nvlist_array(spa->spa_spares.sav_config, |
2193 | ZPOOL_CONFIG_SPARES, &spares, &nspares)); | |
34dc7c2f BB |
2194 | |
2195 | spa->spa_spares.sav_count = (int)nspares; | |
2196 | spa->spa_spares.sav_vdevs = NULL; | |
2197 | ||
2198 | if (nspares == 0) | |
2199 | return; | |
2200 | ||
2201 | /* | |
2202 | * Construct the array of vdevs, opening them to get status in the | |
2203 | * process. For each spare, there is potentially two different vdev_t | |
2204 | * structures associated with it: one in the list of spares (used only | |
2205 | * for basic validation purposes) and one in the active vdev | |
2206 | * configuration (if it's spared in). During this phase we open and | |
2207 | * validate each vdev on the spare list. If the vdev also exists in the | |
2208 | * active configuration, then we also mark this vdev as an active spare. | |
2209 | */ | |
904ea276 | 2210 | spa->spa_spares.sav_vdevs = kmem_zalloc(nspares * sizeof (void *), |
79c76d5b | 2211 | KM_SLEEP); |
34dc7c2f BB |
2212 | for (i = 0; i < spa->spa_spares.sav_count; i++) { |
2213 | VERIFY(spa_config_parse(spa, &vd, spares[i], NULL, 0, | |
2214 | VDEV_ALLOC_SPARE) == 0); | |
2215 | ASSERT(vd != NULL); | |
2216 | ||
2217 | spa->spa_spares.sav_vdevs[i] = vd; | |
2218 | ||
b128c09f BB |
2219 | if ((tvd = spa_lookup_by_guid(spa, vd->vdev_guid, |
2220 | B_FALSE)) != NULL) { | |
34dc7c2f BB |
2221 | if (!tvd->vdev_isspare) |
2222 | spa_spare_add(tvd); | |
2223 | ||
2224 | /* | |
2225 | * We only mark the spare active if we were successfully | |
2226 | * able to load the vdev. Otherwise, importing a pool | |
2227 | * with a bad active spare would result in strange | |
2228 | * behavior, because multiple pool would think the spare | |
2229 | * is actively in use. | |
2230 | * | |
2231 | * There is a vulnerability here to an equally bizarre | |
2232 | * circumstance, where a dead active spare is later | |
2233 | * brought back to life (onlined or otherwise). Given | |
2234 | * the rarity of this scenario, and the extra complexity | |
2235 | * it adds, we ignore the possibility. | |
2236 | */ | |
2237 | if (!vdev_is_dead(tvd)) | |
2238 | spa_spare_activate(tvd); | |
2239 | } | |
2240 | ||
b128c09f | 2241 | vd->vdev_top = vd; |
9babb374 | 2242 | vd->vdev_aux = &spa->spa_spares; |
b128c09f | 2243 | |
34dc7c2f BB |
2244 | if (vdev_open(vd) != 0) |
2245 | continue; | |
2246 | ||
34dc7c2f BB |
2247 | if (vdev_validate_aux(vd) == 0) |
2248 | spa_spare_add(vd); | |
2249 | } | |
2250 | ||
2251 | /* | |
2252 | * Recompute the stashed list of spares, with status information | |
2253 | * this time. | |
2254 | */ | |
65ad5d11 | 2255 | fnvlist_remove(spa->spa_spares.sav_config, ZPOOL_CONFIG_SPARES); |
34dc7c2f BB |
2256 | |
2257 | spares = kmem_alloc(spa->spa_spares.sav_count * sizeof (void *), | |
79c76d5b | 2258 | KM_SLEEP); |
34dc7c2f BB |
2259 | for (i = 0; i < spa->spa_spares.sav_count; i++) |
2260 | spares[i] = vdev_config_generate(spa, | |
428870ff | 2261 | spa->spa_spares.sav_vdevs[i], B_TRUE, VDEV_CONFIG_SPARE); |
65ad5d11 | 2262 | fnvlist_add_nvlist_array(spa->spa_spares.sav_config, |
795075e6 PD |
2263 | ZPOOL_CONFIG_SPARES, (const nvlist_t * const *)spares, |
2264 | spa->spa_spares.sav_count); | |
34dc7c2f BB |
2265 | for (i = 0; i < spa->spa_spares.sav_count; i++) |
2266 | nvlist_free(spares[i]); | |
2267 | kmem_free(spares, spa->spa_spares.sav_count * sizeof (void *)); | |
2268 | } | |
2269 | ||
2270 | /* | |
2271 | * Load (or re-load) the current list of vdevs describing the active l2cache for | |
2272 | * this pool. When this is called, we have some form of basic information in | |
2273 | * 'spa_l2cache.sav_config'. We parse this into vdevs, try to open them, and | |
2274 | * then re-generate a more complete list including status information. | |
2275 | * Devices which are already active have their details maintained, and are | |
2276 | * not re-opened. | |
2277 | */ | |
a1d477c2 | 2278 | void |
34dc7c2f BB |
2279 | spa_load_l2cache(spa_t *spa) |
2280 | { | |
460f239e | 2281 | nvlist_t **l2cache = NULL; |
34dc7c2f BB |
2282 | uint_t nl2cache; |
2283 | int i, j, oldnvdevs; | |
9babb374 | 2284 | uint64_t guid; |
a117a6d6 | 2285 | vdev_t *vd, **oldvdevs, **newvdevs; |
34dc7c2f BB |
2286 | spa_aux_vdev_t *sav = &spa->spa_l2cache; |
2287 | ||
d2734cce SD |
2288 | #ifndef _KERNEL |
2289 | /* | |
2290 | * zdb opens both the current state of the pool and the | |
2291 | * checkpointed state (if present), with a different spa_t. | |
2292 | * | |
2293 | * As L2 caches are part of the ARC which is shared among open | |
2294 | * pools, we skip loading them when we load the checkpointed | |
2295 | * state of the pool. | |
2296 | */ | |
2297 | if (!spa_writeable(spa)) | |
2298 | return; | |
2299 | #endif | |
2300 | ||
b128c09f BB |
2301 | ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL); |
2302 | ||
34dc7c2f BB |
2303 | oldvdevs = sav->sav_vdevs; |
2304 | oldnvdevs = sav->sav_count; | |
2305 | sav->sav_vdevs = NULL; | |
2306 | sav->sav_count = 0; | |
2307 | ||
67d60824 NB |
2308 | if (sav->sav_config == NULL) { |
2309 | nl2cache = 0; | |
2310 | newvdevs = NULL; | |
2311 | goto out; | |
2312 | } | |
2313 | ||
65ad5d11 AJ |
2314 | VERIFY0(nvlist_lookup_nvlist_array(sav->sav_config, |
2315 | ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache)); | |
67d60824 NB |
2316 | newvdevs = kmem_alloc(nl2cache * sizeof (void *), KM_SLEEP); |
2317 | ||
34dc7c2f BB |
2318 | /* |
2319 | * Process new nvlist of vdevs. | |
2320 | */ | |
2321 | for (i = 0; i < nl2cache; i++) { | |
65ad5d11 | 2322 | guid = fnvlist_lookup_uint64(l2cache[i], ZPOOL_CONFIG_GUID); |
34dc7c2f BB |
2323 | |
2324 | newvdevs[i] = NULL; | |
2325 | for (j = 0; j < oldnvdevs; j++) { | |
2326 | vd = oldvdevs[j]; | |
2327 | if (vd != NULL && guid == vd->vdev_guid) { | |
2328 | /* | |
2329 | * Retain previous vdev for add/remove ops. | |
2330 | */ | |
2331 | newvdevs[i] = vd; | |
2332 | oldvdevs[j] = NULL; | |
2333 | break; | |
2334 | } | |
2335 | } | |
2336 | ||
2337 | if (newvdevs[i] == NULL) { | |
2338 | /* | |
2339 | * Create new vdev | |
2340 | */ | |
2341 | VERIFY(spa_config_parse(spa, &vd, l2cache[i], NULL, 0, | |
2342 | VDEV_ALLOC_L2CACHE) == 0); | |
2343 | ASSERT(vd != NULL); | |
2344 | newvdevs[i] = vd; | |
2345 | ||
2346 | /* | |
2347 | * Commit this vdev as an l2cache device, | |
2348 | * even if it fails to open. | |
2349 | */ | |
2350 | spa_l2cache_add(vd); | |
2351 | ||
b128c09f BB |
2352 | vd->vdev_top = vd; |
2353 | vd->vdev_aux = sav; | |
2354 | ||
2355 | spa_l2cache_activate(vd); | |
2356 | ||
34dc7c2f BB |
2357 | if (vdev_open(vd) != 0) |
2358 | continue; | |
2359 | ||
34dc7c2f BB |
2360 | (void) vdev_validate_aux(vd); |
2361 | ||
9babb374 BB |
2362 | if (!vdev_is_dead(vd)) |
2363 | l2arc_add_vdev(spa, vd); | |
b7654bd7 GA |
2364 | |
2365 | /* | |
2366 | * Upon cache device addition to a pool or pool | |
2367 | * creation with a cache device or if the header | |
2368 | * of the device is invalid we issue an async | |
2369 | * TRIM command for the whole device which will | |
2370 | * execute if l2arc_trim_ahead > 0. | |
2371 | */ | |
2372 | spa_async_request(spa, SPA_ASYNC_L2CACHE_TRIM); | |
34dc7c2f BB |
2373 | } |
2374 | } | |
2375 | ||
67d60824 NB |
2376 | sav->sav_vdevs = newvdevs; |
2377 | sav->sav_count = (int)nl2cache; | |
2378 | ||
2379 | /* | |
2380 | * Recompute the stashed list of l2cache devices, with status | |
2381 | * information this time. | |
2382 | */ | |
65ad5d11 | 2383 | fnvlist_remove(sav->sav_config, ZPOOL_CONFIG_L2CACHE); |
67d60824 | 2384 | |
460f239e D |
2385 | if (sav->sav_count > 0) |
2386 | l2cache = kmem_alloc(sav->sav_count * sizeof (void *), | |
2387 | KM_SLEEP); | |
67d60824 NB |
2388 | for (i = 0; i < sav->sav_count; i++) |
2389 | l2cache[i] = vdev_config_generate(spa, | |
2390 | sav->sav_vdevs[i], B_TRUE, VDEV_CONFIG_L2CACHE); | |
795075e6 PD |
2391 | fnvlist_add_nvlist_array(sav->sav_config, ZPOOL_CONFIG_L2CACHE, |
2392 | (const nvlist_t * const *)l2cache, sav->sav_count); | |
67d60824 NB |
2393 | |
2394 | out: | |
34dc7c2f BB |
2395 | /* |
2396 | * Purge vdevs that were dropped | |
2397 | */ | |
cfb49616 RY |
2398 | if (oldvdevs) { |
2399 | for (i = 0; i < oldnvdevs; i++) { | |
2400 | uint64_t pool; | |
2401 | ||
2402 | vd = oldvdevs[i]; | |
2403 | if (vd != NULL) { | |
2404 | ASSERT(vd->vdev_isl2cache); | |
2405 | ||
2406 | if (spa_l2cache_exists(vd->vdev_guid, &pool) && | |
2407 | pool != 0ULL && l2arc_vdev_present(vd)) | |
2408 | l2arc_remove_vdev(vd); | |
2409 | vdev_clear_stats(vd); | |
2410 | vdev_free(vd); | |
2411 | } | |
34dc7c2f | 2412 | } |
34dc7c2f | 2413 | |
34dc7c2f | 2414 | kmem_free(oldvdevs, oldnvdevs * sizeof (void *)); |
cfb49616 | 2415 | } |
34dc7c2f | 2416 | |
34dc7c2f BB |
2417 | for (i = 0; i < sav->sav_count; i++) |
2418 | nvlist_free(l2cache[i]); | |
2419 | if (sav->sav_count) | |
2420 | kmem_free(l2cache, sav->sav_count * sizeof (void *)); | |
2421 | } | |
2422 | ||
2423 | static int | |
2424 | load_nvlist(spa_t *spa, uint64_t obj, nvlist_t **value) | |
2425 | { | |
2426 | dmu_buf_t *db; | |
2427 | char *packed = NULL; | |
2428 | size_t nvsize = 0; | |
2429 | int error; | |
2430 | *value = NULL; | |
2431 | ||
c3275b56 BB |
2432 | error = dmu_bonus_hold(spa->spa_meta_objset, obj, FTAG, &db); |
2433 | if (error) | |
2434 | return (error); | |
2435 | ||
34dc7c2f BB |
2436 | nvsize = *(uint64_t *)db->db_data; |
2437 | dmu_buf_rele(db, FTAG); | |
2438 | ||
77aef6f6 | 2439 | packed = vmem_alloc(nvsize, KM_SLEEP); |
9babb374 BB |
2440 | error = dmu_read(spa->spa_meta_objset, obj, 0, nvsize, packed, |
2441 | DMU_READ_PREFETCH); | |
34dc7c2f BB |
2442 | if (error == 0) |
2443 | error = nvlist_unpack(packed, nvsize, value, 0); | |
77aef6f6 | 2444 | vmem_free(packed, nvsize); |
34dc7c2f BB |
2445 | |
2446 | return (error); | |
2447 | } | |
2448 | ||
6cb8e530 PZ |
2449 | /* |
2450 | * Concrete top-level vdevs that are not missing and are not logs. At every | |
2451 | * spa_sync we write new uberblocks to at least SPA_SYNC_MIN_VDEVS core tvds. | |
2452 | */ | |
2453 | static uint64_t | |
2454 | spa_healthy_core_tvds(spa_t *spa) | |
2455 | { | |
2456 | vdev_t *rvd = spa->spa_root_vdev; | |
2457 | uint64_t tvds = 0; | |
2458 | ||
2459 | for (uint64_t i = 0; i < rvd->vdev_children; i++) { | |
2460 | vdev_t *vd = rvd->vdev_child[i]; | |
2461 | if (vd->vdev_islog) | |
2462 | continue; | |
2463 | if (vdev_is_concrete(vd) && !vdev_is_dead(vd)) | |
2464 | tvds++; | |
2465 | } | |
2466 | ||
2467 | return (tvds); | |
2468 | } | |
2469 | ||
34dc7c2f BB |
2470 | /* |
2471 | * Checks to see if the given vdev could not be opened, in which case we post a | |
2472 | * sysevent to notify the autoreplace code that the device has been removed. | |
2473 | */ | |
2474 | static void | |
2475 | spa_check_removed(vdev_t *vd) | |
2476 | { | |
6cb8e530 | 2477 | for (uint64_t c = 0; c < vd->vdev_children; c++) |
34dc7c2f BB |
2478 | spa_check_removed(vd->vdev_child[c]); |
2479 | ||
7011fb60 | 2480 | if (vd->vdev_ops->vdev_op_leaf && vdev_is_dead(vd) && |
a1d477c2 | 2481 | vdev_is_concrete(vd)) { |
fb390aaf | 2482 | zfs_post_autoreplace(vd->vdev_spa, vd); |
12fa0466 | 2483 | spa_event_notify(vd->vdev_spa, vd, NULL, ESC_ZFS_VDEV_CHECK); |
34dc7c2f BB |
2484 | } |
2485 | } | |
2486 | ||
6cb8e530 PZ |
2487 | static int |
2488 | spa_check_for_missing_logs(spa_t *spa) | |
9babb374 | 2489 | { |
6cb8e530 | 2490 | vdev_t *rvd = spa->spa_root_vdev; |
9babb374 | 2491 | |
428870ff | 2492 | /* |
572e2857 | 2493 | * If we're doing a normal import, then build up any additional |
6cb8e530 | 2494 | * diagnostic information about missing log devices. |
572e2857 | 2495 | * We'll pass this up to the user for further processing. |
428870ff | 2496 | */ |
572e2857 BB |
2497 | if (!(spa->spa_import_flags & ZFS_IMPORT_MISSING_LOG)) { |
2498 | nvlist_t **child, *nv; | |
2499 | uint64_t idx = 0; | |
2500 | ||
160987b5 | 2501 | child = kmem_alloc(rvd->vdev_children * sizeof (nvlist_t *), |
79c76d5b | 2502 | KM_SLEEP); |
65ad5d11 | 2503 | nv = fnvlist_alloc(); |
572e2857 | 2504 | |
6cb8e530 | 2505 | for (uint64_t c = 0; c < rvd->vdev_children; c++) { |
572e2857 | 2506 | vdev_t *tvd = rvd->vdev_child[c]; |
572e2857 | 2507 | |
6cb8e530 PZ |
2508 | /* |
2509 | * We consider a device as missing only if it failed | |
2510 | * to open (i.e. offline or faulted is not considered | |
2511 | * as missing). | |
2512 | */ | |
2513 | if (tvd->vdev_islog && | |
2514 | tvd->vdev_state == VDEV_STATE_CANT_OPEN) { | |
2515 | child[idx++] = vdev_config_generate(spa, tvd, | |
2516 | B_FALSE, VDEV_CONFIG_MISSING); | |
2517 | } | |
572e2857 | 2518 | } |
9babb374 | 2519 | |
6cb8e530 | 2520 | if (idx > 0) { |
795075e6 PD |
2521 | fnvlist_add_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, |
2522 | (const nvlist_t * const *)child, idx); | |
6cb8e530 PZ |
2523 | fnvlist_add_nvlist(spa->spa_load_info, |
2524 | ZPOOL_CONFIG_MISSING_DEVICES, nv); | |
572e2857 | 2525 | |
6cb8e530 | 2526 | for (uint64_t i = 0; i < idx; i++) |
572e2857 BB |
2527 | nvlist_free(child[i]); |
2528 | } | |
2529 | nvlist_free(nv); | |
2530 | kmem_free(child, rvd->vdev_children * sizeof (char **)); | |
572e2857 | 2531 | |
6cb8e530 PZ |
2532 | if (idx > 0) { |
2533 | spa_load_failed(spa, "some log devices are missing"); | |
db7d07e1 | 2534 | vdev_dbgmsg_print_tree(rvd, 2); |
6cb8e530 PZ |
2535 | return (SET_ERROR(ENXIO)); |
2536 | } | |
2537 | } else { | |
2538 | for (uint64_t c = 0; c < rvd->vdev_children; c++) { | |
2539 | vdev_t *tvd = rvd->vdev_child[c]; | |
a1d477c2 | 2540 | |
6cb8e530 PZ |
2541 | if (tvd->vdev_islog && |
2542 | tvd->vdev_state == VDEV_STATE_CANT_OPEN) { | |
572e2857 | 2543 | spa_set_log_state(spa, SPA_LOG_CLEAR); |
6cb8e530 PZ |
2544 | spa_load_note(spa, "some log devices are " |
2545 | "missing, ZIL is dropped."); | |
db7d07e1 | 2546 | vdev_dbgmsg_print_tree(rvd, 2); |
6cb8e530 | 2547 | break; |
e0ab3ab5 | 2548 | } |
572e2857 | 2549 | } |
9babb374 | 2550 | } |
e0ab3ab5 | 2551 | |
6cb8e530 | 2552 | return (0); |
9babb374 BB |
2553 | } |
2554 | ||
b128c09f BB |
2555 | /* |
2556 | * Check for missing log devices | |
2557 | */ | |
13fe0198 | 2558 | static boolean_t |
b128c09f BB |
2559 | spa_check_logs(spa_t *spa) |
2560 | { | |
13fe0198 | 2561 | boolean_t rv = B_FALSE; |
9c43027b | 2562 | dsl_pool_t *dp = spa_get_dsl(spa); |
13fe0198 | 2563 | |
b128c09f | 2564 | switch (spa->spa_log_state) { |
e75c13c3 BB |
2565 | default: |
2566 | break; | |
b128c09f BB |
2567 | case SPA_LOG_MISSING: |
2568 | /* need to recheck in case slog has been restored */ | |
2569 | case SPA_LOG_UNKNOWN: | |
9c43027b AJ |
2570 | rv = (dmu_objset_find_dp(dp, dp->dp_root_dir_obj, |
2571 | zil_check_log_chain, NULL, DS_FIND_CHILDREN) != 0); | |
13fe0198 | 2572 | if (rv) |
428870ff | 2573 | spa_set_log_state(spa, SPA_LOG_MISSING); |
b128c09f | 2574 | break; |
b128c09f | 2575 | } |
13fe0198 | 2576 | return (rv); |
b128c09f BB |
2577 | } |
2578 | ||
aa755b35 MA |
2579 | /* |
2580 | * Passivate any log vdevs (note, does not apply to embedded log metaslabs). | |
2581 | */ | |
428870ff BB |
2582 | static boolean_t |
2583 | spa_passivate_log(spa_t *spa) | |
34dc7c2f | 2584 | { |
428870ff BB |
2585 | vdev_t *rvd = spa->spa_root_vdev; |
2586 | boolean_t slog_found = B_FALSE; | |
b128c09f | 2587 | |
428870ff | 2588 | ASSERT(spa_config_held(spa, SCL_ALLOC, RW_WRITER)); |
fb5f0bc8 | 2589 | |
1c27024e | 2590 | for (int c = 0; c < rvd->vdev_children; c++) { |
428870ff | 2591 | vdev_t *tvd = rvd->vdev_child[c]; |
34dc7c2f | 2592 | |
428870ff | 2593 | if (tvd->vdev_islog) { |
aa755b35 MA |
2594 | ASSERT3P(tvd->vdev_log_mg, ==, NULL); |
2595 | metaslab_group_passivate(tvd->vdev_mg); | |
428870ff BB |
2596 | slog_found = B_TRUE; |
2597 | } | |
34dc7c2f BB |
2598 | } |
2599 | ||
428870ff BB |
2600 | return (slog_found); |
2601 | } | |
34dc7c2f | 2602 | |
aa755b35 MA |
2603 | /* |
2604 | * Activate any log vdevs (note, does not apply to embedded log metaslabs). | |
2605 | */ | |
428870ff BB |
2606 | static void |
2607 | spa_activate_log(spa_t *spa) | |
2608 | { | |
2609 | vdev_t *rvd = spa->spa_root_vdev; | |
34dc7c2f | 2610 | |
428870ff BB |
2611 | ASSERT(spa_config_held(spa, SCL_ALLOC, RW_WRITER)); |
2612 | ||
1c27024e | 2613 | for (int c = 0; c < rvd->vdev_children; c++) { |
428870ff | 2614 | vdev_t *tvd = rvd->vdev_child[c]; |
428870ff | 2615 | |
aa755b35 MA |
2616 | if (tvd->vdev_islog) { |
2617 | ASSERT3P(tvd->vdev_log_mg, ==, NULL); | |
2618 | metaslab_group_activate(tvd->vdev_mg); | |
2619 | } | |
34dc7c2f | 2620 | } |
428870ff | 2621 | } |
34dc7c2f | 2622 | |
428870ff | 2623 | int |
a1d477c2 | 2624 | spa_reset_logs(spa_t *spa) |
428870ff | 2625 | { |
13fe0198 | 2626 | int error; |
9babb374 | 2627 | |
a1d477c2 | 2628 | error = dmu_objset_find(spa_name(spa), zil_reset, |
13fe0198 MA |
2629 | NULL, DS_FIND_CHILDREN); |
2630 | if (error == 0) { | |
428870ff BB |
2631 | /* |
2632 | * We successfully offlined the log device, sync out the | |
2633 | * current txg so that the "stubby" block can be removed | |
2634 | * by zil_sync(). | |
2635 | */ | |
2636 | txg_wait_synced(spa->spa_dsl_pool, 0); | |
2637 | } | |
2638 | return (error); | |
2639 | } | |
34dc7c2f | 2640 | |
428870ff BB |
2641 | static void |
2642 | spa_aux_check_removed(spa_aux_vdev_t *sav) | |
2643 | { | |
1c27024e | 2644 | for (int i = 0; i < sav->sav_count; i++) |
428870ff BB |
2645 | spa_check_removed(sav->sav_vdevs[i]); |
2646 | } | |
34dc7c2f | 2647 | |
428870ff BB |
2648 | void |
2649 | spa_claim_notify(zio_t *zio) | |
2650 | { | |
2651 | spa_t *spa = zio->io_spa; | |
34dc7c2f | 2652 | |
428870ff BB |
2653 | if (zio->io_error) |
2654 | return; | |
34dc7c2f | 2655 | |
428870ff BB |
2656 | mutex_enter(&spa->spa_props_lock); /* any mutex will do */ |
2657 | if (spa->spa_claim_max_txg < zio->io_bp->blk_birth) | |
2658 | spa->spa_claim_max_txg = zio->io_bp->blk_birth; | |
2659 | mutex_exit(&spa->spa_props_lock); | |
2660 | } | |
34dc7c2f | 2661 | |
428870ff | 2662 | typedef struct spa_load_error { |
f2c5bc15 | 2663 | boolean_t sle_verify_data; |
428870ff BB |
2664 | uint64_t sle_meta_count; |
2665 | uint64_t sle_data_count; | |
2666 | } spa_load_error_t; | |
34dc7c2f | 2667 | |
428870ff BB |
2668 | static void |
2669 | spa_load_verify_done(zio_t *zio) | |
2670 | { | |
2671 | blkptr_t *bp = zio->io_bp; | |
2672 | spa_load_error_t *sle = zio->io_private; | |
2673 | dmu_object_type_t type = BP_GET_TYPE(bp); | |
2674 | int error = zio->io_error; | |
dea377c0 | 2675 | spa_t *spa = zio->io_spa; |
34dc7c2f | 2676 | |
a6255b7f | 2677 | abd_free(zio->io_abd); |
428870ff | 2678 | if (error) { |
9ae529ec | 2679 | if ((BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)) && |
428870ff | 2680 | type != DMU_OT_INTENT_LOG) |
bc89ac84 | 2681 | atomic_inc_64(&sle->sle_meta_count); |
428870ff | 2682 | else |
bc89ac84 | 2683 | atomic_inc_64(&sle->sle_data_count); |
34dc7c2f | 2684 | } |
dea377c0 MA |
2685 | |
2686 | mutex_enter(&spa->spa_scrub_lock); | |
c8242a96 | 2687 | spa->spa_load_verify_bytes -= BP_GET_PSIZE(bp); |
dea377c0 MA |
2688 | cv_broadcast(&spa->spa_scrub_io_cv); |
2689 | mutex_exit(&spa->spa_scrub_lock); | |
428870ff | 2690 | } |
34dc7c2f | 2691 | |
dea377c0 | 2692 | /* |
e1cfd73f | 2693 | * Maximum number of inflight bytes is the log2 fraction of the arc size. |
c8242a96 | 2694 | * By default, we set it to 1/16th of the arc. |
dea377c0 | 2695 | */ |
fdc2d303 | 2696 | static uint_t spa_load_verify_shift = 4; |
18168da7 AZ |
2697 | static int spa_load_verify_metadata = B_TRUE; |
2698 | static int spa_load_verify_data = B_TRUE; | |
dea377c0 | 2699 | |
428870ff BB |
2700 | static int |
2701 | spa_load_verify_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, | |
5dbd68a3 | 2702 | const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) |
428870ff | 2703 | { |
f2c5bc15 AM |
2704 | zio_t *rio = arg; |
2705 | spa_load_error_t *sle = rio->io_private; | |
2706 | ||
14e4e3cb AZ |
2707 | (void) zilog, (void) dnp; |
2708 | ||
dea377c0 MA |
2709 | /* |
2710 | * Note: normally this routine will not be called if | |
2711 | * spa_load_verify_metadata is not set. However, it may be useful | |
2712 | * to manually set the flag after the traversal has begun. | |
2713 | */ | |
2714 | if (!spa_load_verify_metadata) | |
2715 | return (0); | |
2cd0f98f BB |
2716 | |
2717 | /* | |
2718 | * Sanity check the block pointer in order to detect obvious damage | |
2719 | * before using the contents in subsequent checks or in zio_read(). | |
2720 | * When damaged consider it to be a metadata error since we cannot | |
2721 | * trust the BP_GET_TYPE and BP_GET_LEVEL values. | |
2722 | */ | |
3095ca91 | 2723 | if (!zfs_blkptr_verify(spa, bp, BLK_CONFIG_NEEDED, BLK_VERIFY_LOG)) { |
2cd0f98f BB |
2724 | atomic_inc_64(&sle->sle_meta_count); |
2725 | return (0); | |
2726 | } | |
2727 | ||
2728 | if (zb->zb_level == ZB_DNODE_LEVEL || BP_IS_HOLE(bp) || | |
2729 | BP_IS_EMBEDDED(bp) || BP_IS_REDACTED(bp)) | |
2730 | return (0); | |
2731 | ||
f2c5bc15 AM |
2732 | if (!BP_IS_METADATA(bp) && |
2733 | (!spa_load_verify_data || !sle->sle_verify_data)) | |
dea377c0 MA |
2734 | return (0); |
2735 | ||
1e527162 GW |
2736 | uint64_t maxinflight_bytes = |
2737 | arc_target_bytes() >> spa_load_verify_shift; | |
1c27024e | 2738 | size_t size = BP_GET_PSIZE(bp); |
dea377c0 MA |
2739 | |
2740 | mutex_enter(&spa->spa_scrub_lock); | |
c8242a96 | 2741 | while (spa->spa_load_verify_bytes >= maxinflight_bytes) |
dea377c0 | 2742 | cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); |
c8242a96 | 2743 | spa->spa_load_verify_bytes += size; |
dea377c0 MA |
2744 | mutex_exit(&spa->spa_scrub_lock); |
2745 | ||
a6255b7f | 2746 | zio_nowait(zio_read(rio, spa, bp, abd_alloc_for_io(size, B_FALSE), size, |
dea377c0 MA |
2747 | spa_load_verify_done, rio->io_private, ZIO_PRIORITY_SCRUB, |
2748 | ZIO_FLAG_SPECULATIVE | ZIO_FLAG_CANFAIL | | |
2749 | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW, zb)); | |
428870ff BB |
2750 | return (0); |
2751 | } | |
34dc7c2f | 2752 | |
65c7cc49 | 2753 | static int |
d1d19c78 PD |
2754 | verify_dataset_name_len(dsl_pool_t *dp, dsl_dataset_t *ds, void *arg) |
2755 | { | |
14e4e3cb AZ |
2756 | (void) dp, (void) arg; |
2757 | ||
d1d19c78 PD |
2758 | if (dsl_dataset_namelen(ds) >= ZFS_MAX_DATASET_NAME_LEN) |
2759 | return (SET_ERROR(ENAMETOOLONG)); | |
2760 | ||
2761 | return (0); | |
2762 | } | |
2763 | ||
428870ff BB |
2764 | static int |
2765 | spa_load_verify(spa_t *spa) | |
2766 | { | |
2767 | zio_t *rio; | |
2768 | spa_load_error_t sle = { 0 }; | |
8a393be3 | 2769 | zpool_load_policy_t policy; |
428870ff | 2770 | boolean_t verify_ok = B_FALSE; |
dea377c0 | 2771 | int error = 0; |
34dc7c2f | 2772 | |
8a393be3 | 2773 | zpool_get_load_policy(spa->spa_config, &policy); |
34dc7c2f | 2774 | |
f2c5bc15 AM |
2775 | if (policy.zlp_rewind & ZPOOL_NEVER_REWIND || |
2776 | policy.zlp_maxmeta == UINT64_MAX) | |
428870ff | 2777 | return (0); |
34dc7c2f | 2778 | |
d1d19c78 PD |
2779 | dsl_pool_config_enter(spa->spa_dsl_pool, FTAG); |
2780 | error = dmu_objset_find_dp(spa->spa_dsl_pool, | |
2781 | spa->spa_dsl_pool->dp_root_dir_obj, verify_dataset_name_len, NULL, | |
2782 | DS_FIND_CHILDREN); | |
2783 | dsl_pool_config_exit(spa->spa_dsl_pool, FTAG); | |
2784 | if (error != 0) | |
2785 | return (error); | |
2786 | ||
f2c5bc15 AM |
2787 | /* |
2788 | * Verify data only if we are rewinding or error limit was set. | |
2789 | * Otherwise nothing except dbgmsg care about it to waste time. | |
2790 | */ | |
2791 | sle.sle_verify_data = (policy.zlp_rewind & ZPOOL_REWIND_MASK) || | |
2792 | (policy.zlp_maxdata < UINT64_MAX); | |
2793 | ||
428870ff BB |
2794 | rio = zio_root(spa, NULL, &sle, |
2795 | ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE); | |
34dc7c2f | 2796 | |
dea377c0 | 2797 | if (spa_load_verify_metadata) { |
4a0ee12a PZ |
2798 | if (spa->spa_extreme_rewind) { |
2799 | spa_load_note(spa, "performing a complete scan of the " | |
2800 | "pool since extreme rewind is on. This may take " | |
2801 | "a very long time.\n (spa_load_verify_data=%u, " | |
2802 | "spa_load_verify_metadata=%u)", | |
2803 | spa_load_verify_data, spa_load_verify_metadata); | |
2804 | } | |
c8242a96 | 2805 | |
dea377c0 | 2806 | error = traverse_pool(spa, spa->spa_verify_min_txg, |
b5256303 TC |
2807 | TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | |
2808 | TRAVERSE_NO_DECRYPT, spa_load_verify_cb, rio); | |
dea377c0 | 2809 | } |
428870ff BB |
2810 | |
2811 | (void) zio_wait(rio); | |
c8242a96 | 2812 | ASSERT0(spa->spa_load_verify_bytes); |
428870ff BB |
2813 | |
2814 | spa->spa_load_meta_errors = sle.sle_meta_count; | |
2815 | spa->spa_load_data_errors = sle.sle_data_count; | |
2816 | ||
afd2f7b7 PZ |
2817 | if (sle.sle_meta_count != 0 || sle.sle_data_count != 0) { |
2818 | spa_load_note(spa, "spa_load_verify found %llu metadata errors " | |
2819 | "and %llu data errors", (u_longlong_t)sle.sle_meta_count, | |
2820 | (u_longlong_t)sle.sle_data_count); | |
2821 | } | |
2822 | ||
2823 | if (spa_load_verify_dryrun || | |
8a393be3 PZ |
2824 | (!error && sle.sle_meta_count <= policy.zlp_maxmeta && |
2825 | sle.sle_data_count <= policy.zlp_maxdata)) { | |
572e2857 BB |
2826 | int64_t loss = 0; |
2827 | ||
428870ff BB |
2828 | verify_ok = B_TRUE; |
2829 | spa->spa_load_txg = spa->spa_uberblock.ub_txg; | |
2830 | spa->spa_load_txg_ts = spa->spa_uberblock.ub_timestamp; | |
572e2857 BB |
2831 | |
2832 | loss = spa->spa_last_ubsync_txg_ts - spa->spa_load_txg_ts; | |
65ad5d11 AJ |
2833 | fnvlist_add_uint64(spa->spa_load_info, ZPOOL_CONFIG_LOAD_TIME, |
2834 | spa->spa_load_txg_ts); | |
2835 | fnvlist_add_int64(spa->spa_load_info, ZPOOL_CONFIG_REWIND_TIME, | |
2836 | loss); | |
f2c5bc15 AM |
2837 | fnvlist_add_uint64(spa->spa_load_info, |
2838 | ZPOOL_CONFIG_LOAD_META_ERRORS, sle.sle_meta_count); | |
65ad5d11 AJ |
2839 | fnvlist_add_uint64(spa->spa_load_info, |
2840 | ZPOOL_CONFIG_LOAD_DATA_ERRORS, sle.sle_data_count); | |
428870ff BB |
2841 | } else { |
2842 | spa->spa_load_max_txg = spa->spa_uberblock.ub_txg; | |
2843 | } | |
2844 | ||
afd2f7b7 PZ |
2845 | if (spa_load_verify_dryrun) |
2846 | return (0); | |
2847 | ||
428870ff BB |
2848 | if (error) { |
2849 | if (error != ENXIO && error != EIO) | |
2e528b49 | 2850 | error = SET_ERROR(EIO); |
428870ff BB |
2851 | return (error); |
2852 | } | |
2853 | ||
2854 | return (verify_ok ? 0 : EIO); | |
2855 | } | |
2856 | ||
2857 | /* | |
2858 | * Find a value in the pool props object. | |
2859 | */ | |
2860 | static void | |
2861 | spa_prop_find(spa_t *spa, zpool_prop_t prop, uint64_t *val) | |
2862 | { | |
2863 | (void) zap_lookup(spa->spa_meta_objset, spa->spa_pool_props_object, | |
2864 | zpool_prop_to_name(prop), sizeof (uint64_t), 1, val); | |
2865 | } | |
2866 | ||
2867 | /* | |
2868 | * Find a value in the pool directory object. | |
2869 | */ | |
2870 | static int | |
4a0ee12a | 2871 | spa_dir_prop(spa_t *spa, const char *name, uint64_t *val, boolean_t log_enoent) |
428870ff | 2872 | { |
4a0ee12a PZ |
2873 | int error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, |
2874 | name, sizeof (uint64_t), 1, val); | |
2875 | ||
2876 | if (error != 0 && (error != ENOENT || log_enoent)) { | |
2877 | spa_load_failed(spa, "couldn't get '%s' value in MOS directory " | |
2878 | "[error=%d]", name, error); | |
2879 | } | |
2880 | ||
2881 | return (error); | |
428870ff BB |
2882 | } |
2883 | ||
2884 | static int | |
2885 | spa_vdev_err(vdev_t *vdev, vdev_aux_t aux, int err) | |
2886 | { | |
2887 | vdev_set_state(vdev, B_TRUE, VDEV_STATE_CANT_OPEN, aux); | |
a1d477c2 | 2888 | return (SET_ERROR(err)); |
428870ff BB |
2889 | } |
2890 | ||
37f03da8 SH |
2891 | boolean_t |
2892 | spa_livelist_delete_check(spa_t *spa) | |
2893 | { | |
2894 | return (spa->spa_livelists_to_delete != 0); | |
2895 | } | |
2896 | ||
37f03da8 SH |
2897 | static boolean_t |
2898 | spa_livelist_delete_cb_check(void *arg, zthr_t *z) | |
2899 | { | |
14e4e3cb | 2900 | (void) z; |
37f03da8 SH |
2901 | spa_t *spa = arg; |
2902 | return (spa_livelist_delete_check(spa)); | |
2903 | } | |
2904 | ||
2905 | static int | |
2906 | delete_blkptr_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) | |
2907 | { | |
2908 | spa_t *spa = arg; | |
2909 | zio_free(spa, tx->tx_txg, bp); | |
2910 | dsl_dir_diduse_space(tx->tx_pool->dp_free_dir, DD_USED_HEAD, | |
2911 | -bp_get_dsize_sync(spa, bp), | |
2912 | -BP_GET_PSIZE(bp), -BP_GET_UCSIZE(bp), tx); | |
2913 | return (0); | |
2914 | } | |
2915 | ||
2916 | static int | |
2917 | dsl_get_next_livelist_obj(objset_t *os, uint64_t zap_obj, uint64_t *llp) | |
2918 | { | |
2919 | int err; | |
2920 | zap_cursor_t zc; | |
2921 | zap_attribute_t za; | |
2922 | zap_cursor_init(&zc, os, zap_obj); | |
2923 | err = zap_cursor_retrieve(&zc, &za); | |
2924 | zap_cursor_fini(&zc); | |
2925 | if (err == 0) | |
2926 | *llp = za.za_first_integer; | |
2927 | return (err); | |
2928 | } | |
2929 | ||
2930 | /* | |
2931 | * Components of livelist deletion that must be performed in syncing | |
2932 | * context: freeing block pointers and updating the pool-wide data | |
2933 | * structures to indicate how much work is left to do | |
2934 | */ | |
2935 | typedef struct sublist_delete_arg { | |
2936 | spa_t *spa; | |
2937 | dsl_deadlist_t *ll; | |
2938 | uint64_t key; | |
2939 | bplist_t *to_free; | |
2940 | } sublist_delete_arg_t; | |
2941 | ||
2942 | static void | |
2943 | sublist_delete_sync(void *arg, dmu_tx_t *tx) | |
2944 | { | |
2945 | sublist_delete_arg_t *sda = arg; | |
2946 | spa_t *spa = sda->spa; | |
2947 | dsl_deadlist_t *ll = sda->ll; | |
2948 | uint64_t key = sda->key; | |
2949 | bplist_t *to_free = sda->to_free; | |
2950 | ||
2951 | bplist_iterate(to_free, delete_blkptr_cb, spa, tx); | |
2952 | dsl_deadlist_remove_entry(ll, key, tx); | |
2953 | } | |
2954 | ||
2955 | typedef struct livelist_delete_arg { | |
2956 | spa_t *spa; | |
2957 | uint64_t ll_obj; | |
2958 | uint64_t zap_obj; | |
2959 | } livelist_delete_arg_t; | |
2960 | ||
2961 | static void | |
2962 | livelist_delete_sync(void *arg, dmu_tx_t *tx) | |
2963 | { | |
2964 | livelist_delete_arg_t *lda = arg; | |
2965 | spa_t *spa = lda->spa; | |
2966 | uint64_t ll_obj = lda->ll_obj; | |
2967 | uint64_t zap_obj = lda->zap_obj; | |
2968 | objset_t *mos = spa->spa_meta_objset; | |
2969 | uint64_t count; | |
2970 | ||
2971 | /* free the livelist and decrement the feature count */ | |
2972 | VERIFY0(zap_remove_int(mos, zap_obj, ll_obj, tx)); | |
2973 | dsl_deadlist_free(mos, ll_obj, tx); | |
2974 | spa_feature_decr(spa, SPA_FEATURE_LIVELIST, tx); | |
2975 | VERIFY0(zap_count(mos, zap_obj, &count)); | |
2976 | if (count == 0) { | |
2977 | /* no more livelists to delete */ | |
2978 | VERIFY0(zap_remove(mos, DMU_POOL_DIRECTORY_OBJECT, | |
2979 | DMU_POOL_DELETED_CLONES, tx)); | |
2980 | VERIFY0(zap_destroy(mos, zap_obj, tx)); | |
2981 | spa->spa_livelists_to_delete = 0; | |
e60e158e | 2982 | spa_notify_waiters(spa); |
37f03da8 SH |
2983 | } |
2984 | } | |
2985 | ||
2986 | /* | |
2987 | * Load in the value for the livelist to be removed and open it. Then, | |
2988 | * load its first sublist and determine which block pointers should actually | |
2989 | * be freed. Then, call a synctask which performs the actual frees and updates | |
2990 | * the pool-wide livelist data. | |
2991 | */ | |
65c7cc49 | 2992 | static void |
37f03da8 SH |
2993 | spa_livelist_delete_cb(void *arg, zthr_t *z) |
2994 | { | |
2995 | spa_t *spa = arg; | |
2996 | uint64_t ll_obj = 0, count; | |
2997 | objset_t *mos = spa->spa_meta_objset; | |
2998 | uint64_t zap_obj = spa->spa_livelists_to_delete; | |
2999 | /* | |
3000 | * Determine the next livelist to delete. This function should only | |
3001 | * be called if there is at least one deleted clone. | |
3002 | */ | |
3003 | VERIFY0(dsl_get_next_livelist_obj(mos, zap_obj, &ll_obj)); | |
3004 | VERIFY0(zap_count(mos, ll_obj, &count)); | |
3005 | if (count > 0) { | |
c9562576 | 3006 | dsl_deadlist_t *ll; |
37f03da8 SH |
3007 | dsl_deadlist_entry_t *dle; |
3008 | bplist_t to_free; | |
c9562576 PS |
3009 | ll = kmem_zalloc(sizeof (dsl_deadlist_t), KM_SLEEP); |
3010 | dsl_deadlist_open(ll, mos, ll_obj); | |
3011 | dle = dsl_deadlist_first(ll); | |
37f03da8 SH |
3012 | ASSERT3P(dle, !=, NULL); |
3013 | bplist_create(&to_free); | |
3014 | int err = dsl_process_sub_livelist(&dle->dle_bpobj, &to_free, | |
3015 | z, NULL); | |
3016 | if (err == 0) { | |
3017 | sublist_delete_arg_t sync_arg = { | |
3018 | .spa = spa, | |
c9562576 | 3019 | .ll = ll, |
37f03da8 SH |
3020 | .key = dle->dle_mintxg, |
3021 | .to_free = &to_free | |
3022 | }; | |
3023 | zfs_dbgmsg("deleting sublist (id %llu) from" | |
8e739b2c RE |
3024 | " livelist %llu, %lld remaining", |
3025 | (u_longlong_t)dle->dle_bpobj.bpo_object, | |
3026 | (u_longlong_t)ll_obj, (longlong_t)count - 1); | |
37f03da8 SH |
3027 | VERIFY0(dsl_sync_task(spa_name(spa), NULL, |
3028 | sublist_delete_sync, &sync_arg, 0, | |
3029 | ZFS_SPACE_CHECK_DESTROY)); | |
3030 | } else { | |
d87676a9 | 3031 | VERIFY3U(err, ==, EINTR); |
37f03da8 SH |
3032 | } |
3033 | bplist_clear(&to_free); | |
3034 | bplist_destroy(&to_free); | |
c9562576 PS |
3035 | dsl_deadlist_close(ll); |
3036 | kmem_free(ll, sizeof (dsl_deadlist_t)); | |
37f03da8 SH |
3037 | } else { |
3038 | livelist_delete_arg_t sync_arg = { | |
3039 | .spa = spa, | |
3040 | .ll_obj = ll_obj, | |
3041 | .zap_obj = zap_obj | |
3042 | }; | |
8e739b2c RE |
3043 | zfs_dbgmsg("deletion of livelist %llu completed", |
3044 | (u_longlong_t)ll_obj); | |
37f03da8 SH |
3045 | VERIFY0(dsl_sync_task(spa_name(spa), NULL, livelist_delete_sync, |
3046 | &sync_arg, 0, ZFS_SPACE_CHECK_DESTROY)); | |
3047 | } | |
3048 | } | |
3049 | ||
65c7cc49 | 3050 | static void |
37f03da8 SH |
3051 | spa_start_livelist_destroy_thread(spa_t *spa) |
3052 | { | |
3053 | ASSERT3P(spa->spa_livelist_delete_zthr, ==, NULL); | |
843e9ca2 SD |
3054 | spa->spa_livelist_delete_zthr = |
3055 | zthr_create("z_livelist_destroy", | |
6bc61d22 TN |
3056 | spa_livelist_delete_cb_check, spa_livelist_delete_cb, spa, |
3057 | minclsyspri); | |
37f03da8 SH |
3058 | } |
3059 | ||
3060 | typedef struct livelist_new_arg { | |
3061 | bplist_t *allocs; | |
3062 | bplist_t *frees; | |
3063 | } livelist_new_arg_t; | |
3064 | ||
3065 | static int | |
3066 | livelist_track_new_cb(void *arg, const blkptr_t *bp, boolean_t bp_freed, | |
3067 | dmu_tx_t *tx) | |
3068 | { | |
3069 | ASSERT(tx == NULL); | |
3070 | livelist_new_arg_t *lna = arg; | |
3071 | if (bp_freed) { | |
3072 | bplist_append(lna->frees, bp); | |
3073 | } else { | |
3074 | bplist_append(lna->allocs, bp); | |
3075 | zfs_livelist_condense_new_alloc++; | |
3076 | } | |
3077 | return (0); | |
3078 | } | |
3079 | ||
3080 | typedef struct livelist_condense_arg { | |
3081 | spa_t *spa; | |
3082 | bplist_t to_keep; | |
3083 | uint64_t first_size; | |
3084 | uint64_t next_size; | |
3085 | } livelist_condense_arg_t; | |
3086 | ||
3087 | static void | |
3088 | spa_livelist_condense_sync(void *arg, dmu_tx_t *tx) | |
3089 | { | |
3090 | livelist_condense_arg_t *lca = arg; | |
3091 | spa_t *spa = lca->spa; | |
3092 | bplist_t new_frees; | |
3093 | dsl_dataset_t *ds = spa->spa_to_condense.ds; | |
3094 | ||
3095 | /* Have we been cancelled? */ | |
3096 | if (spa->spa_to_condense.cancelled) { | |
3097 | zfs_livelist_condense_sync_cancel++; | |
3098 | goto out; | |
3099 | } | |
3100 | ||
3101 | dsl_deadlist_entry_t *first = spa->spa_to_condense.first; | |
3102 | dsl_deadlist_entry_t *next = spa->spa_to_condense.next; | |
3103 | dsl_deadlist_t *ll = &ds->ds_dir->dd_livelist; | |
3104 | ||
3105 | /* | |
3106 | * It's possible that the livelist was changed while the zthr was | |
3107 | * running. Therefore, we need to check for new blkptrs in the two | |
3108 | * entries being condensed and continue to track them in the livelist. | |
3109 | * Because of the way we handle remapped blkptrs (see dbuf_remap_impl), | |
3110 | * it's possible that the newly added blkptrs are FREEs or ALLOCs so | |
3111 | * we need to sort them into two different bplists. | |
3112 | */ | |
3113 | uint64_t first_obj = first->dle_bpobj.bpo_object; | |
3114 | uint64_t next_obj = next->dle_bpobj.bpo_object; | |
3115 | uint64_t cur_first_size = first->dle_bpobj.bpo_phys->bpo_num_blkptrs; | |
3116 | uint64_t cur_next_size = next->dle_bpobj.bpo_phys->bpo_num_blkptrs; | |
3117 | ||
3118 | bplist_create(&new_frees); | |
3119 | livelist_new_arg_t new_bps = { | |
3120 | .allocs = &lca->to_keep, | |
3121 | .frees = &new_frees, | |
3122 | }; | |
3123 | ||
3124 | if (cur_first_size > lca->first_size) { | |
3125 | VERIFY0(livelist_bpobj_iterate_from_nofree(&first->dle_bpobj, | |
3126 | livelist_track_new_cb, &new_bps, lca->first_size)); | |
3127 | } | |
3128 | if (cur_next_size > lca->next_size) { | |
3129 | VERIFY0(livelist_bpobj_iterate_from_nofree(&next->dle_bpobj, | |
3130 | livelist_track_new_cb, &new_bps, lca->next_size)); | |
3131 | } | |
3132 | ||
3133 | dsl_deadlist_clear_entry(first, ll, tx); | |
3134 | ASSERT(bpobj_is_empty(&first->dle_bpobj)); | |
3135 | dsl_deadlist_remove_entry(ll, next->dle_mintxg, tx); | |
3136 | ||
3137 | bplist_iterate(&lca->to_keep, dsl_deadlist_insert_alloc_cb, ll, tx); | |
3138 | bplist_iterate(&new_frees, dsl_deadlist_insert_free_cb, ll, tx); | |
3139 | bplist_destroy(&new_frees); | |
3140 | ||
3141 | char dsname[ZFS_MAX_DATASET_NAME_LEN]; | |
3142 | dsl_dataset_name(ds, dsname); | |
3143 | zfs_dbgmsg("txg %llu condensing livelist of %s (id %llu), bpobj %llu " | |
3144 | "(%llu blkptrs) and bpobj %llu (%llu blkptrs) -> bpobj %llu " | |
8e739b2c RE |
3145 | "(%llu blkptrs)", (u_longlong_t)tx->tx_txg, dsname, |
3146 | (u_longlong_t)ds->ds_object, (u_longlong_t)first_obj, | |
3147 | (u_longlong_t)cur_first_size, (u_longlong_t)next_obj, | |
3148 | (u_longlong_t)cur_next_size, | |
3149 | (u_longlong_t)first->dle_bpobj.bpo_object, | |
3150 | (u_longlong_t)first->dle_bpobj.bpo_phys->bpo_num_blkptrs); | |
37f03da8 SH |
3151 | out: |
3152 | dmu_buf_rele(ds->ds_dbuf, spa); | |
3153 | spa->spa_to_condense.ds = NULL; | |
3154 | bplist_clear(&lca->to_keep); | |
3155 | bplist_destroy(&lca->to_keep); | |
3156 | kmem_free(lca, sizeof (livelist_condense_arg_t)); | |
3157 | spa->spa_to_condense.syncing = B_FALSE; | |
3158 | } | |
3159 | ||
65c7cc49 | 3160 | static void |
37f03da8 SH |
3161 | spa_livelist_condense_cb(void *arg, zthr_t *t) |
3162 | { | |
3163 | while (zfs_livelist_condense_zthr_pause && | |
3164 | !(zthr_has_waiters(t) || zthr_iscancelled(t))) | |
3165 | delay(1); | |
3166 | ||
3167 | spa_t *spa = arg; | |
3168 | dsl_deadlist_entry_t *first = spa->spa_to_condense.first; | |
3169 | dsl_deadlist_entry_t *next = spa->spa_to_condense.next; | |
3170 | uint64_t first_size, next_size; | |
3171 | ||
3172 | livelist_condense_arg_t *lca = | |
3173 | kmem_alloc(sizeof (livelist_condense_arg_t), KM_SLEEP); | |
3174 | bplist_create(&lca->to_keep); | |
3175 | ||
3176 | /* | |
3177 | * Process the livelists (matching FREEs and ALLOCs) in open context | |
3178 | * so we have minimal work in syncing context to condense. | |
3179 | * | |
3180 | * We save bpobj sizes (first_size and next_size) to use later in | |
3181 | * syncing context to determine if entries were added to these sublists | |
3182 | * while in open context. This is possible because the clone is still | |
3183 | * active and open for normal writes and we want to make sure the new, | |
3184 | * unprocessed blockpointers are inserted into the livelist normally. | |
3185 | * | |
3186 | * Note that dsl_process_sub_livelist() both stores the size number of | |
3187 | * blockpointers and iterates over them while the bpobj's lock held, so | |
3188 | * the sizes returned to us are consistent which what was actually | |
3189 | * processed. | |
3190 | */ | |
3191 | int err = dsl_process_sub_livelist(&first->dle_bpobj, &lca->to_keep, t, | |
3192 | &first_size); | |
3193 | if (err == 0) | |
3194 | err = dsl_process_sub_livelist(&next->dle_bpobj, &lca->to_keep, | |
3195 | t, &next_size); | |
3196 | ||
3197 | if (err == 0) { | |
3198 | while (zfs_livelist_condense_sync_pause && | |
3199 | !(zthr_has_waiters(t) || zthr_iscancelled(t))) | |
3200 | delay(1); | |
3201 | ||
3202 | dmu_tx_t *tx = dmu_tx_create_dd(spa_get_dsl(spa)->dp_mos_dir); | |
3203 | dmu_tx_mark_netfree(tx); | |
3204 | dmu_tx_hold_space(tx, 1); | |
3205 | err = dmu_tx_assign(tx, TXG_NOWAIT | TXG_NOTHROTTLE); | |
3206 | if (err == 0) { | |
3207 | /* | |
3208 | * Prevent the condense zthr restarting before | |
3209 | * the synctask completes. | |
3210 | */ | |
3211 | spa->spa_to_condense.syncing = B_TRUE; | |
3212 | lca->spa = spa; | |
3213 | lca->first_size = first_size; | |
3214 | lca->next_size = next_size; | |
3215 | dsl_sync_task_nowait(spa_get_dsl(spa), | |
38080324 | 3216 | spa_livelist_condense_sync, lca, tx); |
37f03da8 SH |
3217 | dmu_tx_commit(tx); |
3218 | return; | |
3219 | } | |
3220 | } | |
3221 | /* | |
3222 | * Condensing can not continue: either it was externally stopped or | |
3223 | * we were unable to assign to a tx because the pool has run out of | |
3224 | * space. In the second case, we'll just end up trying to condense | |
3225 | * again in a later txg. | |
3226 | */ | |
3227 | ASSERT(err != 0); | |
3228 | bplist_clear(&lca->to_keep); | |
3229 | bplist_destroy(&lca->to_keep); | |
3230 | kmem_free(lca, sizeof (livelist_condense_arg_t)); | |
3231 | dmu_buf_rele(spa->spa_to_condense.ds->ds_dbuf, spa); | |
3232 | spa->spa_to_condense.ds = NULL; | |
3233 | if (err == EINTR) | |
3234 | zfs_livelist_condense_zthr_cancel++; | |
3235 | } | |
3236 | ||
37f03da8 SH |
3237 | /* |
3238 | * Check that there is something to condense but that a condense is not | |
3239 | * already in progress and that condensing has not been cancelled. | |
3240 | */ | |
3241 | static boolean_t | |
3242 | spa_livelist_condense_cb_check(void *arg, zthr_t *z) | |
3243 | { | |
14e4e3cb | 3244 | (void) z; |
37f03da8 SH |
3245 | spa_t *spa = arg; |
3246 | if ((spa->spa_to_condense.ds != NULL) && | |
3247 | (spa->spa_to_condense.syncing == B_FALSE) && | |
3248 | (spa->spa_to_condense.cancelled == B_FALSE)) { | |
3249 | return (B_TRUE); | |
3250 | } | |
3251 | return (B_FALSE); | |
3252 | } | |
3253 | ||
65c7cc49 | 3254 | static void |
37f03da8 SH |
3255 | spa_start_livelist_condensing_thread(spa_t *spa) |
3256 | { | |
3257 | spa->spa_to_condense.ds = NULL; | |
3258 | spa->spa_to_condense.first = NULL; | |
3259 | spa->spa_to_condense.next = NULL; | |
3260 | spa->spa_to_condense.syncing = B_FALSE; | |
3261 | spa->spa_to_condense.cancelled = B_FALSE; | |
3262 | ||
3263 | ASSERT3P(spa->spa_livelist_condense_zthr, ==, NULL); | |
843e9ca2 SD |
3264 | spa->spa_livelist_condense_zthr = |
3265 | zthr_create("z_livelist_condense", | |
3266 | spa_livelist_condense_cb_check, | |
6bc61d22 | 3267 | spa_livelist_condense_cb, spa, minclsyspri); |
37f03da8 SH |
3268 | } |
3269 | ||
9d5b5245 SD |
3270 | static void |
3271 | spa_spawn_aux_threads(spa_t *spa) | |
3272 | { | |
3273 | ASSERT(spa_writeable(spa)); | |
3274 | ||
3275 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); | |
3276 | ||
5caeef02 | 3277 | spa_start_raidz_expansion_thread(spa); |
9d5b5245 | 3278 | spa_start_indirect_condensing_thread(spa); |
37f03da8 SH |
3279 | spa_start_livelist_destroy_thread(spa); |
3280 | spa_start_livelist_condensing_thread(spa); | |
d2734cce SD |
3281 | |
3282 | ASSERT3P(spa->spa_checkpoint_discard_zthr, ==, NULL); | |
3283 | spa->spa_checkpoint_discard_zthr = | |
843e9ca2 SD |
3284 | zthr_create("z_checkpoint_discard", |
3285 | spa_checkpoint_discard_thread_check, | |
6bc61d22 | 3286 | spa_checkpoint_discard_thread, spa, minclsyspri); |
9d5b5245 SD |
3287 | } |
3288 | ||
428870ff BB |
3289 | /* |
3290 | * Fix up config after a partly-completed split. This is done with the | |
3291 | * ZPOOL_CONFIG_SPLIT nvlist. Both the splitting pool and the split-off | |
3292 | * pool have that entry in their config, but only the splitting one contains | |
3293 | * a list of all the guids of the vdevs that are being split off. | |
3294 | * | |
3295 | * This function determines what to do with that list: either rejoin | |
3296 | * all the disks to the pool, or complete the splitting process. To attempt | |
3297 | * the rejoin, each disk that is offlined is marked online again, and | |
3298 | * we do a reopen() call. If the vdev label for every disk that was | |
3299 | * marked online indicates it was successfully split off (VDEV_AUX_SPLIT_POOL) | |
3300 | * then we call vdev_split() on each disk, and complete the split. | |
3301 | * | |
3302 | * Otherwise we leave the config alone, with all the vdevs in place in | |
3303 | * the original pool. | |
3304 | */ | |
3305 | static void | |
3306 | spa_try_repair(spa_t *spa, nvlist_t *config) | |
3307 | { | |
3308 | uint_t extracted; | |
3309 | uint64_t *glist; | |
3310 | uint_t i, gcount; | |
3311 | nvlist_t *nvl; | |
3312 | vdev_t **vd; | |
3313 | boolean_t attempt_reopen; | |
3314 | ||
3315 | if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_SPLIT, &nvl) != 0) | |
3316 | return; | |
3317 | ||
3318 | /* check that the config is complete */ | |
3319 | if (nvlist_lookup_uint64_array(nvl, ZPOOL_CONFIG_SPLIT_LIST, | |
3320 | &glist, &gcount) != 0) | |
3321 | return; | |
3322 | ||
79c76d5b | 3323 | vd = kmem_zalloc(gcount * sizeof (vdev_t *), KM_SLEEP); |
428870ff BB |
3324 | |
3325 | /* attempt to online all the vdevs & validate */ | |
3326 | attempt_reopen = B_TRUE; | |
3327 | for (i = 0; i < gcount; i++) { | |
3328 | if (glist[i] == 0) /* vdev is hole */ | |
3329 | continue; | |
3330 | ||
3331 | vd[i] = spa_lookup_by_guid(spa, glist[i], B_FALSE); | |
3332 | if (vd[i] == NULL) { | |
3333 | /* | |
3334 | * Don't bother attempting to reopen the disks; | |
3335 | * just do the split. | |
3336 | */ | |
3337 | attempt_reopen = B_FALSE; | |
3338 | } else { | |
3339 | /* attempt to re-online it */ | |
3340 | vd[i]->vdev_offline = B_FALSE; | |
3341 | } | |
3342 | } | |
3343 | ||
3344 | if (attempt_reopen) { | |
3345 | vdev_reopen(spa->spa_root_vdev); | |
3346 | ||
3347 | /* check each device to see what state it's in */ | |
3348 | for (extracted = 0, i = 0; i < gcount; i++) { | |
3349 | if (vd[i] != NULL && | |
3350 | vd[i]->vdev_stat.vs_aux != VDEV_AUX_SPLIT_POOL) | |
3351 | break; | |
3352 | ++extracted; | |
3353 | } | |
3354 | } | |
3355 | ||
3356 | /* | |
3357 | * If every disk has been moved to the new pool, or if we never | |
3358 | * even attempted to look at them, then we split them off for | |
3359 | * good. | |
3360 | */ | |
3361 | if (!attempt_reopen || gcount == extracted) { | |
3362 | for (i = 0; i < gcount; i++) | |
3363 | if (vd[i] != NULL) | |
3364 | vdev_split(vd[i]); | |
3365 | vdev_reopen(spa->spa_root_vdev); | |
3366 | } | |
3367 | ||
3368 | kmem_free(vd, gcount * sizeof (vdev_t *)); | |
3369 | } | |
3370 | ||
3371 | static int | |
6cb8e530 | 3372 | spa_load(spa_t *spa, spa_load_state_t state, spa_import_type_t type) |
428870ff | 3373 | { |
a926aab9 | 3374 | const char *ereport = FM_EREPORT_ZFS_POOL; |
428870ff | 3375 | int error; |
428870ff | 3376 | |
6cb8e530 | 3377 | spa->spa_load_state = state; |
ca95f70d OF |
3378 | (void) spa_import_progress_set_state(spa_guid(spa), |
3379 | spa_load_state(spa)); | |
687e4d7f | 3380 | spa_import_progress_set_notes(spa, "spa_load()"); |
9ae529ec | 3381 | |
6cb8e530 | 3382 | gethrestime(&spa->spa_loaded_ts); |
d2734cce | 3383 | error = spa_load_impl(spa, type, &ereport); |
428870ff | 3384 | |
0c66c32d JG |
3385 | /* |
3386 | * Don't count references from objsets that are already closed | |
3387 | * and are making their way through the eviction process. | |
3388 | */ | |
3389 | spa_evicting_os_wait(spa); | |
424fd7c3 | 3390 | spa->spa_minref = zfs_refcount_count(&spa->spa_refcount); |
572e2857 BB |
3391 | if (error) { |
3392 | if (error != EEXIST) { | |
3393 | spa->spa_loaded_ts.tv_sec = 0; | |
3394 | spa->spa_loaded_ts.tv_nsec = 0; | |
3395 | } | |
3396 | if (error != EBADF) { | |
1144586b | 3397 | (void) zfs_ereport_post(ereport, spa, |
4f072827 | 3398 | NULL, NULL, NULL, 0); |
572e2857 BB |
3399 | } |
3400 | } | |
428870ff BB |
3401 | spa->spa_load_state = error ? SPA_LOAD_ERROR : SPA_LOAD_NONE; |
3402 | spa->spa_ena = 0; | |
3403 | ||
ca95f70d OF |
3404 | (void) spa_import_progress_set_state(spa_guid(spa), |
3405 | spa_load_state(spa)); | |
3406 | ||
428870ff BB |
3407 | return (error); |
3408 | } | |
3409 | ||
33cf67cd | 3410 | #ifdef ZFS_DEBUG |
e0ab3ab5 JS |
3411 | /* |
3412 | * Count the number of per-vdev ZAPs associated with all of the vdevs in the | |
3413 | * vdev tree rooted in the given vd, and ensure that each ZAP is present in the | |
3414 | * spa's per-vdev ZAP list. | |
3415 | */ | |
3416 | static uint64_t | |
3417 | vdev_count_verify_zaps(vdev_t *vd) | |
3418 | { | |
3419 | spa_t *spa = vd->vdev_spa; | |
3420 | uint64_t total = 0; | |
e0ab3ab5 | 3421 | |
3e4ed421 RW |
3422 | if (spa_feature_is_active(vd->vdev_spa, SPA_FEATURE_AVZ_V2) && |
3423 | vd->vdev_root_zap != 0) { | |
3424 | total++; | |
3425 | ASSERT0(zap_lookup_int(spa->spa_meta_objset, | |
3426 | spa->spa_all_vdev_zaps, vd->vdev_root_zap)); | |
3427 | } | |
e0ab3ab5 JS |
3428 | if (vd->vdev_top_zap != 0) { |
3429 | total++; | |
3430 | ASSERT0(zap_lookup_int(spa->spa_meta_objset, | |
3431 | spa->spa_all_vdev_zaps, vd->vdev_top_zap)); | |
3432 | } | |
3433 | if (vd->vdev_leaf_zap != 0) { | |
3434 | total++; | |
3435 | ASSERT0(zap_lookup_int(spa->spa_meta_objset, | |
3436 | spa->spa_all_vdev_zaps, vd->vdev_leaf_zap)); | |
3437 | } | |
3438 | ||
1c27024e | 3439 | for (uint64_t i = 0; i < vd->vdev_children; i++) { |
e0ab3ab5 JS |
3440 | total += vdev_count_verify_zaps(vd->vdev_child[i]); |
3441 | } | |
3442 | ||
3443 | return (total); | |
3444 | } | |
36542b06 AZ |
3445 | #else |
3446 | #define vdev_count_verify_zaps(vd) ((void) sizeof (vd), 0) | |
33cf67cd | 3447 | #endif |
e0ab3ab5 | 3448 | |
379ca9cf OF |
3449 | /* |
3450 | * Determine whether the activity check is required. | |
3451 | */ | |
3452 | static boolean_t | |
bbffb59e BB |
3453 | spa_activity_check_required(spa_t *spa, uberblock_t *ub, nvlist_t *label, |
3454 | nvlist_t *config) | |
379ca9cf OF |
3455 | { |
3456 | uint64_t state = 0; | |
3457 | uint64_t hostid = 0; | |
3458 | uint64_t tryconfig_txg = 0; | |
3459 | uint64_t tryconfig_timestamp = 0; | |
060f0226 | 3460 | uint16_t tryconfig_mmp_seq = 0; |
379ca9cf OF |
3461 | nvlist_t *nvinfo; |
3462 | ||
3463 | if (nvlist_exists(config, ZPOOL_CONFIG_LOAD_INFO)) { | |
3464 | nvinfo = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO); | |
3465 | (void) nvlist_lookup_uint64(nvinfo, ZPOOL_CONFIG_MMP_TXG, | |
3466 | &tryconfig_txg); | |
3467 | (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_TIMESTAMP, | |
3468 | &tryconfig_timestamp); | |
060f0226 OF |
3469 | (void) nvlist_lookup_uint16(nvinfo, ZPOOL_CONFIG_MMP_SEQ, |
3470 | &tryconfig_mmp_seq); | |
379ca9cf OF |
3471 | } |
3472 | ||
3473 | (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE, &state); | |
379ca9cf OF |
3474 | |
3475 | /* | |
3476 | * Disable the MMP activity check - This is used by zdb which | |
3477 | * is intended to be used on potentially active pools. | |
3478 | */ | |
3479 | if (spa->spa_import_flags & ZFS_IMPORT_SKIP_MMP) | |
3480 | return (B_FALSE); | |
3481 | ||
3482 | /* | |
3483 | * Skip the activity check when the MMP feature is disabled. | |
3484 | */ | |
3485 | if (ub->ub_mmp_magic == MMP_MAGIC && ub->ub_mmp_delay == 0) | |
3486 | return (B_FALSE); | |
ca95f70d | 3487 | |
379ca9cf | 3488 | /* |
060f0226 OF |
3489 | * If the tryconfig_ values are nonzero, they are the results of an |
3490 | * earlier tryimport. If they all match the uberblock we just found, | |
3491 | * then the pool has not changed and we return false so we do not test | |
3492 | * a second time. | |
379ca9cf OF |
3493 | */ |
3494 | if (tryconfig_txg && tryconfig_txg == ub->ub_txg && | |
060f0226 OF |
3495 | tryconfig_timestamp && tryconfig_timestamp == ub->ub_timestamp && |
3496 | tryconfig_mmp_seq && tryconfig_mmp_seq == | |
3497 | (MMP_SEQ_VALID(ub) ? MMP_SEQ(ub) : 0)) | |
379ca9cf OF |
3498 | return (B_FALSE); |
3499 | ||
3500 | /* | |
3501 | * Allow the activity check to be skipped when importing the pool | |
bbffb59e BB |
3502 | * on the same host which last imported it. Since the hostid from |
3503 | * configuration may be stale use the one read from the label. | |
379ca9cf | 3504 | */ |
bbffb59e BB |
3505 | if (nvlist_exists(label, ZPOOL_CONFIG_HOSTID)) |
3506 | hostid = fnvlist_lookup_uint64(label, ZPOOL_CONFIG_HOSTID); | |
3507 | ||
25f06d67 | 3508 | if (hostid == spa_get_hostid(spa)) |
379ca9cf OF |
3509 | return (B_FALSE); |
3510 | ||
3511 | /* | |
3512 | * Skip the activity test when the pool was cleanly exported. | |
3513 | */ | |
3514 | if (state != POOL_STATE_ACTIVE) | |
3515 | return (B_FALSE); | |
3516 | ||
3517 | return (B_TRUE); | |
3518 | } | |
3519 | ||
060f0226 OF |
3520 | /* |
3521 | * Nanoseconds the activity check must watch for changes on-disk. | |
3522 | */ | |
3523 | static uint64_t | |
3524 | spa_activity_check_duration(spa_t *spa, uberblock_t *ub) | |
3525 | { | |
3526 | uint64_t import_intervals = MAX(zfs_multihost_import_intervals, 1); | |
3527 | uint64_t multihost_interval = MSEC2NSEC( | |
3528 | MMP_INTERVAL_OK(zfs_multihost_interval)); | |
3529 | uint64_t import_delay = MAX(NANOSEC, import_intervals * | |
3530 | multihost_interval); | |
3531 | ||
3532 | /* | |
3533 | * Local tunables determine a minimum duration except for the case | |
3534 | * where we know when the remote host will suspend the pool if MMP | |
3535 | * writes do not land. | |
3536 | * | |
3537 | * See Big Theory comment at the top of mmp.c for the reasoning behind | |
3538 | * these cases and times. | |
3539 | */ | |
3540 | ||
3541 | ASSERT(MMP_IMPORT_SAFETY_FACTOR >= 100); | |
3542 | ||
3543 | if (MMP_INTERVAL_VALID(ub) && MMP_FAIL_INT_VALID(ub) && | |
3544 | MMP_FAIL_INT(ub) > 0) { | |
3545 | ||
3546 | /* MMP on remote host will suspend pool after failed writes */ | |
3547 | import_delay = MMP_FAIL_INT(ub) * MSEC2NSEC(MMP_INTERVAL(ub)) * | |
3548 | MMP_IMPORT_SAFETY_FACTOR / 100; | |
3549 | ||
3550 | zfs_dbgmsg("fail_intvals>0 import_delay=%llu ub_mmp " | |
3551 | "mmp_fails=%llu ub_mmp mmp_interval=%llu " | |
8e739b2c RE |
3552 | "import_intervals=%llu", (u_longlong_t)import_delay, |
3553 | (u_longlong_t)MMP_FAIL_INT(ub), | |
3554 | (u_longlong_t)MMP_INTERVAL(ub), | |
3555 | (u_longlong_t)import_intervals); | |
060f0226 OF |
3556 | |
3557 | } else if (MMP_INTERVAL_VALID(ub) && MMP_FAIL_INT_VALID(ub) && | |
3558 | MMP_FAIL_INT(ub) == 0) { | |
3559 | ||
3560 | /* MMP on remote host will never suspend pool */ | |
3561 | import_delay = MAX(import_delay, (MSEC2NSEC(MMP_INTERVAL(ub)) + | |
3562 | ub->ub_mmp_delay) * import_intervals); | |
3563 | ||
3564 | zfs_dbgmsg("fail_intvals=0 import_delay=%llu ub_mmp " | |
3565 | "mmp_interval=%llu ub_mmp_delay=%llu " | |
8e739b2c RE |
3566 | "import_intervals=%llu", (u_longlong_t)import_delay, |
3567 | (u_longlong_t)MMP_INTERVAL(ub), | |
3568 | (u_longlong_t)ub->ub_mmp_delay, | |
3569 | (u_longlong_t)import_intervals); | |
060f0226 OF |
3570 | |
3571 | } else if (MMP_VALID(ub)) { | |
3572 | /* | |
e1cfd73f | 3573 | * zfs-0.7 compatibility case |
060f0226 OF |
3574 | */ |
3575 | ||
3576 | import_delay = MAX(import_delay, (multihost_interval + | |
3577 | ub->ub_mmp_delay) * import_intervals); | |
3578 | ||
3579 | zfs_dbgmsg("import_delay=%llu ub_mmp_delay=%llu " | |
8e739b2c RE |
3580 | "import_intervals=%llu leaves=%u", |
3581 | (u_longlong_t)import_delay, | |
3582 | (u_longlong_t)ub->ub_mmp_delay, | |
3583 | (u_longlong_t)import_intervals, | |
060f0226 OF |
3584 | vdev_count_leaves(spa)); |
3585 | } else { | |
3586 | /* Using local tunings is the only reasonable option */ | |
3587 | zfs_dbgmsg("pool last imported on non-MMP aware " | |
3588 | "host using import_delay=%llu multihost_interval=%llu " | |
8e739b2c RE |
3589 | "import_intervals=%llu", (u_longlong_t)import_delay, |
3590 | (u_longlong_t)multihost_interval, | |
3591 | (u_longlong_t)import_intervals); | |
060f0226 OF |
3592 | } |
3593 | ||
3594 | return (import_delay); | |
3595 | } | |
3596 | ||
379ca9cf OF |
3597 | /* |
3598 | * Perform the import activity check. If the user canceled the import or | |
3599 | * we detected activity then fail. | |
3600 | */ | |
3601 | static int | |
3602 | spa_activity_check(spa_t *spa, uberblock_t *ub, nvlist_t *config) | |
3603 | { | |
379ca9cf OF |
3604 | uint64_t txg = ub->ub_txg; |
3605 | uint64_t timestamp = ub->ub_timestamp; | |
060f0226 OF |
3606 | uint64_t mmp_config = ub->ub_mmp_config; |
3607 | uint16_t mmp_seq = MMP_SEQ_VALID(ub) ? MMP_SEQ(ub) : 0; | |
3608 | uint64_t import_delay; | |
687e4d7f | 3609 | hrtime_t import_expire, now; |
379ca9cf OF |
3610 | nvlist_t *mmp_label = NULL; |
3611 | vdev_t *rvd = spa->spa_root_vdev; | |
3612 | kcondvar_t cv; | |
3613 | kmutex_t mtx; | |
3614 | int error = 0; | |
3615 | ||
3616 | cv_init(&cv, NULL, CV_DEFAULT, NULL); | |
3617 | mutex_init(&mtx, NULL, MUTEX_DEFAULT, NULL); | |
3618 | mutex_enter(&mtx); | |
3619 | ||
3620 | /* | |
3621 | * If ZPOOL_CONFIG_MMP_TXG is present an activity check was performed | |
3622 | * during the earlier tryimport. If the txg recorded there is 0 then | |
3623 | * the pool is known to be active on another host. | |
3624 | * | |
060f0226 | 3625 | * Otherwise, the pool might be in use on another host. Check for |
379ca9cf OF |
3626 | * changes in the uberblocks on disk if necessary. |
3627 | */ | |
3628 | if (nvlist_exists(config, ZPOOL_CONFIG_LOAD_INFO)) { | |
3629 | nvlist_t *nvinfo = fnvlist_lookup_nvlist(config, | |
3630 | ZPOOL_CONFIG_LOAD_INFO); | |
3631 | ||
3632 | if (nvlist_exists(nvinfo, ZPOOL_CONFIG_MMP_TXG) && | |
3633 | fnvlist_lookup_uint64(nvinfo, ZPOOL_CONFIG_MMP_TXG) == 0) { | |
3634 | vdev_uberblock_load(rvd, ub, &mmp_label); | |
3635 | error = SET_ERROR(EREMOTEIO); | |
3636 | goto out; | |
3637 | } | |
3638 | } | |
3639 | ||
060f0226 | 3640 | import_delay = spa_activity_check_duration(spa, ub); |
533ea041 | 3641 | |
379ca9cf | 3642 | /* Add a small random factor in case of simultaneous imports (0-25%) */ |
29274c9f | 3643 | import_delay += import_delay * random_in_range(250) / 1000; |
ca95f70d OF |
3644 | |
3645 | import_expire = gethrtime() + import_delay; | |
379ca9cf | 3646 | |
687e4d7f DB |
3647 | spa_import_progress_set_notes(spa, "Checking MMP activity, waiting " |
3648 | "%llu ms", (u_longlong_t)NSEC2MSEC(import_delay)); | |
3649 | ||
3650 | int interations = 0; | |
3651 | while ((now = gethrtime()) < import_expire) { | |
3652 | if (interations++ % 30 == 0) { | |
3653 | spa_import_progress_set_notes(spa, "Checking MMP " | |
3654 | "activity, %llu ms remaining", | |
3655 | (u_longlong_t)NSEC2MSEC(import_expire - now)); | |
3656 | } | |
3657 | ||
ca95f70d OF |
3658 | (void) spa_import_progress_set_mmp_check(spa_guid(spa), |
3659 | NSEC2SEC(import_expire - gethrtime())); | |
3660 | ||
379ca9cf OF |
3661 | vdev_uberblock_load(rvd, ub, &mmp_label); |
3662 | ||
060f0226 OF |
3663 | if (txg != ub->ub_txg || timestamp != ub->ub_timestamp || |
3664 | mmp_seq != (MMP_SEQ_VALID(ub) ? MMP_SEQ(ub) : 0)) { | |
3665 | zfs_dbgmsg("multihost activity detected " | |
3666 | "txg %llu ub_txg %llu " | |
3667 | "timestamp %llu ub_timestamp %llu " | |
3668 | "mmp_config %#llx ub_mmp_config %#llx", | |
8e739b2c RE |
3669 | (u_longlong_t)txg, (u_longlong_t)ub->ub_txg, |
3670 | (u_longlong_t)timestamp, | |
3671 | (u_longlong_t)ub->ub_timestamp, | |
3672 | (u_longlong_t)mmp_config, | |
3673 | (u_longlong_t)ub->ub_mmp_config); | |
060f0226 | 3674 | |
379ca9cf OF |
3675 | error = SET_ERROR(EREMOTEIO); |
3676 | break; | |
3677 | } | |
3678 | ||
3679 | if (mmp_label) { | |
3680 | nvlist_free(mmp_label); | |
3681 | mmp_label = NULL; | |
3682 | } | |
3683 | ||
3684 | error = cv_timedwait_sig(&cv, &mtx, ddi_get_lbolt() + hz); | |
3685 | if (error != -1) { | |
3686 | error = SET_ERROR(EINTR); | |
3687 | break; | |
3688 | } | |
3689 | error = 0; | |
3690 | } | |
3691 | ||
3692 | out: | |
3693 | mutex_exit(&mtx); | |
3694 | mutex_destroy(&mtx); | |
3695 | cv_destroy(&cv); | |
3696 | ||
3697 | /* | |
3698 | * If the pool is determined to be active store the status in the | |
3699 | * spa->spa_load_info nvlist. If the remote hostname or hostid are | |
3700 | * available from configuration read from disk store them as well. | |
3701 | * This allows 'zpool import' to generate a more useful message. | |
3702 | * | |
3703 | * ZPOOL_CONFIG_MMP_STATE - observed pool status (mandatory) | |
3704 | * ZPOOL_CONFIG_MMP_HOSTNAME - hostname from the active pool | |
3705 | * ZPOOL_CONFIG_MMP_HOSTID - hostid from the active pool | |
3706 | */ | |
3707 | if (error == EREMOTEIO) { | |
a926aab9 | 3708 | const char *hostname = "<unknown>"; |
379ca9cf OF |
3709 | uint64_t hostid = 0; |
3710 | ||
3711 | if (mmp_label) { | |
3712 | if (nvlist_exists(mmp_label, ZPOOL_CONFIG_HOSTNAME)) { | |
3713 | hostname = fnvlist_lookup_string(mmp_label, | |
3714 | ZPOOL_CONFIG_HOSTNAME); | |
3715 | fnvlist_add_string(spa->spa_load_info, | |
3716 | ZPOOL_CONFIG_MMP_HOSTNAME, hostname); | |
3717 | } | |
3718 | ||
3719 | if (nvlist_exists(mmp_label, ZPOOL_CONFIG_HOSTID)) { | |
3720 | hostid = fnvlist_lookup_uint64(mmp_label, | |
3721 | ZPOOL_CONFIG_HOSTID); | |
3722 | fnvlist_add_uint64(spa->spa_load_info, | |
3723 | ZPOOL_CONFIG_MMP_HOSTID, hostid); | |
3724 | } | |
3725 | } | |
3726 | ||
3727 | fnvlist_add_uint64(spa->spa_load_info, | |
3728 | ZPOOL_CONFIG_MMP_STATE, MMP_STATE_ACTIVE); | |
3729 | fnvlist_add_uint64(spa->spa_load_info, | |
3730 | ZPOOL_CONFIG_MMP_TXG, 0); | |
3731 | ||
3732 | error = spa_vdev_err(rvd, VDEV_AUX_ACTIVE, EREMOTEIO); | |
3733 | } | |
3734 | ||
3735 | if (mmp_label) | |
3736 | nvlist_free(mmp_label); | |
3737 | ||
3738 | return (error); | |
3739 | } | |
3740 | ||
9eb7b46e | 3741 | static int |
6cb8e530 PZ |
3742 | spa_verify_host(spa_t *spa, nvlist_t *mos_config) |
3743 | { | |
3744 | uint64_t hostid; | |
d1807f16 | 3745 | const char *hostname; |
6cb8e530 PZ |
3746 | uint64_t myhostid = 0; |
3747 | ||
3748 | if (!spa_is_root(spa) && nvlist_lookup_uint64(mos_config, | |
3749 | ZPOOL_CONFIG_HOSTID, &hostid) == 0) { | |
3750 | hostname = fnvlist_lookup_string(mos_config, | |
3751 | ZPOOL_CONFIG_HOSTNAME); | |
3752 | ||
3753 | myhostid = zone_get_hostid(NULL); | |
3754 | ||
3755 | if (hostid != 0 && myhostid != 0 && hostid != myhostid) { | |
3756 | cmn_err(CE_WARN, "pool '%s' could not be " | |
3757 | "loaded as it was last accessed by " | |
3758 | "another system (host: %s hostid: 0x%llx). " | |
a2f944a1 RM |
3759 | "See: https://openzfs.github.io/openzfs-docs/msg/" |
3760 | "ZFS-8000-EY", | |
6cb8e530 PZ |
3761 | spa_name(spa), hostname, (u_longlong_t)hostid); |
3762 | spa_load_failed(spa, "hostid verification failed: pool " | |
3763 | "last accessed by host: %s (hostid: 0x%llx)", | |
3764 | hostname, (u_longlong_t)hostid); | |
3765 | return (SET_ERROR(EBADF)); | |
3766 | } | |
3767 | } | |
3768 | ||
3769 | return (0); | |
3770 | } | |
3771 | ||
3772 | static int | |
3773 | spa_ld_parse_config(spa_t *spa, spa_import_type_t type) | |
428870ff BB |
3774 | { |
3775 | int error = 0; | |
6cb8e530 | 3776 | nvlist_t *nvtree, *nvl, *config = spa->spa_config; |
1c27024e | 3777 | int parse; |
9eb7b46e | 3778 | vdev_t *rvd; |
6cb8e530 | 3779 | uint64_t pool_guid; |
d1807f16 RY |
3780 | const char *comment; |
3781 | const char *compatibility; | |
6cb8e530 PZ |
3782 | |
3783 | /* | |
3784 | * Versioning wasn't explicitly added to the label until later, so if | |
3785 | * it's not present treat it as the initial version. | |
3786 | */ | |
3787 | if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION, | |
3788 | &spa->spa_ubsync.ub_version) != 0) | |
3789 | spa->spa_ubsync.ub_version = SPA_VERSION_INITIAL; | |
3790 | ||
3791 | if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &pool_guid)) { | |
3792 | spa_load_failed(spa, "invalid config provided: '%s' missing", | |
3793 | ZPOOL_CONFIG_POOL_GUID); | |
3794 | return (SET_ERROR(EINVAL)); | |
3795 | } | |
3796 | ||
d2734cce SD |
3797 | /* |
3798 | * If we are doing an import, ensure that the pool is not already | |
3799 | * imported by checking if its pool guid already exists in the | |
3800 | * spa namespace. | |
3801 | * | |
3802 | * The only case that we allow an already imported pool to be | |
3803 | * imported again, is when the pool is checkpointed and we want to | |
3804 | * look at its checkpointed state from userland tools like zdb. | |
3805 | */ | |
3806 | #ifdef _KERNEL | |
3807 | if ((spa->spa_load_state == SPA_LOAD_IMPORT || | |
3808 | spa->spa_load_state == SPA_LOAD_TRYIMPORT) && | |
3809 | spa_guid_exists(pool_guid, 0)) { | |
3810 | #else | |
3811 | if ((spa->spa_load_state == SPA_LOAD_IMPORT || | |
3812 | spa->spa_load_state == SPA_LOAD_TRYIMPORT) && | |
3813 | spa_guid_exists(pool_guid, 0) && | |
3814 | !spa_importing_readonly_checkpoint(spa)) { | |
3815 | #endif | |
6cb8e530 PZ |
3816 | spa_load_failed(spa, "a pool with guid %llu is already open", |
3817 | (u_longlong_t)pool_guid); | |
3818 | return (SET_ERROR(EEXIST)); | |
3819 | } | |
3820 | ||
3821 | spa->spa_config_guid = pool_guid; | |
3822 | ||
3823 | nvlist_free(spa->spa_load_info); | |
3824 | spa->spa_load_info = fnvlist_alloc(); | |
3825 | ||
3826 | ASSERT(spa->spa_comment == NULL); | |
3827 | if (nvlist_lookup_string(config, ZPOOL_CONFIG_COMMENT, &comment) == 0) | |
3828 | spa->spa_comment = spa_strdup(comment); | |
3829 | ||
658fb802 CB |
3830 | ASSERT(spa->spa_compatibility == NULL); |
3831 | if (nvlist_lookup_string(config, ZPOOL_CONFIG_COMPATIBILITY, | |
3832 | &compatibility) == 0) | |
3833 | spa->spa_compatibility = spa_strdup(compatibility); | |
3834 | ||
6cb8e530 PZ |
3835 | (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG, |
3836 | &spa->spa_config_txg); | |
3837 | ||
3838 | if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_SPLIT, &nvl) == 0) | |
3839 | spa->spa_config_splitting = fnvlist_dup(nvl); | |
428870ff | 3840 | |
4a0ee12a PZ |
3841 | if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvtree)) { |
3842 | spa_load_failed(spa, "invalid config provided: '%s' missing", | |
3843 | ZPOOL_CONFIG_VDEV_TREE); | |
2e528b49 | 3844 | return (SET_ERROR(EINVAL)); |
4a0ee12a | 3845 | } |
428870ff | 3846 | |
428870ff BB |
3847 | /* |
3848 | * Create "The Godfather" zio to hold all async IOs | |
3849 | */ | |
e022864d MA |
3850 | spa->spa_async_zio_root = kmem_alloc(max_ncpus * sizeof (void *), |
3851 | KM_SLEEP); | |
1c27024e | 3852 | for (int i = 0; i < max_ncpus; i++) { |
e022864d MA |
3853 | spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL, |
3854 | ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | | |
3855 | ZIO_FLAG_GODFATHER); | |
3856 | } | |
428870ff BB |
3857 | |
3858 | /* | |
3859 | * Parse the configuration into a vdev tree. We explicitly set the | |
3860 | * value that will be returned by spa_version() since parsing the | |
3861 | * configuration requires knowing the version number. | |
3862 | */ | |
3863 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); | |
6cb8e530 PZ |
3864 | parse = (type == SPA_IMPORT_EXISTING ? |
3865 | VDEV_ALLOC_LOAD : VDEV_ALLOC_SPLIT); | |
9eb7b46e | 3866 | error = spa_config_parse(spa, &rvd, nvtree, NULL, 0, parse); |
428870ff BB |
3867 | spa_config_exit(spa, SCL_ALL, FTAG); |
3868 | ||
4a0ee12a PZ |
3869 | if (error != 0) { |
3870 | spa_load_failed(spa, "unable to parse config [error=%d]", | |
3871 | error); | |
428870ff | 3872 | return (error); |
4a0ee12a | 3873 | } |
428870ff BB |
3874 | |
3875 | ASSERT(spa->spa_root_vdev == rvd); | |
c3520e7f MA |
3876 | ASSERT3U(spa->spa_min_ashift, >=, SPA_MINBLOCKSHIFT); |
3877 | ASSERT3U(spa->spa_max_ashift, <=, SPA_MAXBLOCKSHIFT); | |
428870ff BB |
3878 | |
3879 | if (type != SPA_IMPORT_ASSEMBLE) { | |
3880 | ASSERT(spa_guid(spa) == pool_guid); | |
3881 | } | |
3882 | ||
9eb7b46e PZ |
3883 | return (0); |
3884 | } | |
3885 | ||
6cb8e530 PZ |
3886 | /* |
3887 | * Recursively open all vdevs in the vdev tree. This function is called twice: | |
3888 | * first with the untrusted config, then with the trusted config. | |
3889 | */ | |
9eb7b46e PZ |
3890 | static int |
3891 | spa_ld_open_vdevs(spa_t *spa) | |
3892 | { | |
3893 | int error = 0; | |
3894 | ||
6cb8e530 PZ |
3895 | /* |
3896 | * spa_missing_tvds_allowed defines how many top-level vdevs can be | |
3897 | * missing/unopenable for the root vdev to be still considered openable. | |
3898 | */ | |
3899 | if (spa->spa_trust_config) { | |
3900 | spa->spa_missing_tvds_allowed = zfs_max_missing_tvds; | |
3901 | } else if (spa->spa_config_source == SPA_CONFIG_SRC_CACHEFILE) { | |
3902 | spa->spa_missing_tvds_allowed = zfs_max_missing_tvds_cachefile; | |
3903 | } else if (spa->spa_config_source == SPA_CONFIG_SRC_SCAN) { | |
3904 | spa->spa_missing_tvds_allowed = zfs_max_missing_tvds_scan; | |
3905 | } else { | |
3906 | spa->spa_missing_tvds_allowed = 0; | |
3907 | } | |
3908 | ||
3909 | spa->spa_missing_tvds_allowed = | |
3910 | MAX(zfs_max_missing_tvds, spa->spa_missing_tvds_allowed); | |
3911 | ||
428870ff | 3912 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
9eb7b46e | 3913 | error = vdev_open(spa->spa_root_vdev); |
428870ff | 3914 | spa_config_exit(spa, SCL_ALL, FTAG); |
6cb8e530 PZ |
3915 | |
3916 | if (spa->spa_missing_tvds != 0) { | |
3917 | spa_load_note(spa, "vdev tree has %lld missing top-level " | |
3918 | "vdevs.", (u_longlong_t)spa->spa_missing_tvds); | |
da92d5cb | 3919 | if (spa->spa_trust_config && (spa->spa_mode & SPA_MODE_WRITE)) { |
6cb8e530 PZ |
3920 | /* |
3921 | * Although theoretically we could allow users to open | |
3922 | * incomplete pools in RW mode, we'd need to add a lot | |
3923 | * of extra logic (e.g. adjust pool space to account | |
3924 | * for missing vdevs). | |
3925 | * This limitation also prevents users from accidentally | |
3926 | * opening the pool in RW mode during data recovery and | |
3927 | * damaging it further. | |
3928 | */ | |
3929 | spa_load_note(spa, "pools with missing top-level " | |
3930 | "vdevs can only be opened in read-only mode."); | |
3931 | error = SET_ERROR(ENXIO); | |
3932 | } else { | |
3933 | spa_load_note(spa, "current settings allow for maximum " | |
3934 | "%lld missing top-level vdevs at this stage.", | |
3935 | (u_longlong_t)spa->spa_missing_tvds_allowed); | |
3936 | } | |
3937 | } | |
4a0ee12a PZ |
3938 | if (error != 0) { |
3939 | spa_load_failed(spa, "unable to open vdev tree [error=%d]", | |
3940 | error); | |
3941 | } | |
6cb8e530 PZ |
3942 | if (spa->spa_missing_tvds != 0 || error != 0) |
3943 | vdev_dbgmsg_print_tree(spa->spa_root_vdev, 2); | |
9eb7b46e PZ |
3944 | |
3945 | return (error); | |
3946 | } | |
3947 | ||
6cb8e530 PZ |
3948 | /* |
3949 | * We need to validate the vdev labels against the configuration that | |
3950 | * we have in hand. This function is called twice: first with an untrusted | |
3951 | * config, then with a trusted config. The validation is more strict when the | |
3952 | * config is trusted. | |
3953 | */ | |
9eb7b46e | 3954 | static int |
6cb8e530 | 3955 | spa_ld_validate_vdevs(spa_t *spa) |
9eb7b46e PZ |
3956 | { |
3957 | int error = 0; | |
3958 | vdev_t *rvd = spa->spa_root_vdev; | |
428870ff | 3959 | |
6cb8e530 PZ |
3960 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
3961 | error = vdev_validate(rvd); | |
3962 | spa_config_exit(spa, SCL_ALL, FTAG); | |
428870ff | 3963 | |
6cb8e530 PZ |
3964 | if (error != 0) { |
3965 | spa_load_failed(spa, "vdev_validate failed [error=%d]", error); | |
3966 | return (error); | |
3967 | } | |
428870ff | 3968 | |
6cb8e530 PZ |
3969 | if (rvd->vdev_state <= VDEV_STATE_CANT_OPEN) { |
3970 | spa_load_failed(spa, "cannot open vdev tree after invalidating " | |
3971 | "some vdevs"); | |
3972 | vdev_dbgmsg_print_tree(rvd, 2); | |
3973 | return (SET_ERROR(ENXIO)); | |
428870ff BB |
3974 | } |
3975 | ||
9eb7b46e PZ |
3976 | return (0); |
3977 | } | |
3978 | ||
d2734cce SD |
3979 | static void |
3980 | spa_ld_select_uberblock_done(spa_t *spa, uberblock_t *ub) | |
3981 | { | |
3982 | spa->spa_state = POOL_STATE_ACTIVE; | |
3983 | spa->spa_ubsync = spa->spa_uberblock; | |
3984 | spa->spa_verify_min_txg = spa->spa_extreme_rewind ? | |
3985 | TXG_INITIAL - 1 : spa_last_synced_txg(spa) - TXG_DEFER_SIZE - 1; | |
3986 | spa->spa_first_txg = spa->spa_last_ubsync_txg ? | |
3987 | spa->spa_last_ubsync_txg : spa_last_synced_txg(spa) + 1; | |
3988 | spa->spa_claim_max_txg = spa->spa_first_txg; | |
3989 | spa->spa_prev_software_version = ub->ub_software_version; | |
3990 | } | |
3991 | ||
9eb7b46e | 3992 | static int |
6cb8e530 | 3993 | spa_ld_select_uberblock(spa_t *spa, spa_import_type_t type) |
9eb7b46e PZ |
3994 | { |
3995 | vdev_t *rvd = spa->spa_root_vdev; | |
3996 | nvlist_t *label; | |
3997 | uberblock_t *ub = &spa->spa_uberblock; | |
9eb7b46e PZ |
3998 | boolean_t activity_check = B_FALSE; |
3999 | ||
d2734cce SD |
4000 | /* |
4001 | * If we are opening the checkpointed state of the pool by | |
4002 | * rewinding to it, at this point we will have written the | |
4003 | * checkpointed uberblock to the vdev labels, so searching | |
4004 | * the labels will find the right uberblock. However, if | |
4005 | * we are opening the checkpointed state read-only, we have | |
4006 | * not modified the labels. Therefore, we must ignore the | |
4007 | * labels and continue using the spa_uberblock that was set | |
4008 | * by spa_ld_checkpoint_rewind. | |
4009 | * | |
4010 | * Note that it would be fine to ignore the labels when | |
4011 | * rewinding (opening writeable) as well. However, if we | |
4012 | * crash just after writing the labels, we will end up | |
4013 | * searching the labels. Doing so in the common case means | |
4014 | * that this code path gets exercised normally, rather than | |
4015 | * just in the edge case. | |
4016 | */ | |
4017 | if (ub->ub_checkpoint_txg != 0 && | |
4018 | spa_importing_readonly_checkpoint(spa)) { | |
4019 | spa_ld_select_uberblock_done(spa, ub); | |
4020 | return (0); | |
4021 | } | |
4022 | ||
428870ff BB |
4023 | /* |
4024 | * Find the best uberblock. | |
4025 | */ | |
9ae529ec | 4026 | vdev_uberblock_load(rvd, ub, &label); |
428870ff BB |
4027 | |
4028 | /* | |
4029 | * If we weren't able to find a single valid uberblock, return failure. | |
4030 | */ | |
9ae529ec CS |
4031 | if (ub->ub_txg == 0) { |
4032 | nvlist_free(label); | |
4a0ee12a | 4033 | spa_load_failed(spa, "no valid uberblock found"); |
428870ff | 4034 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, ENXIO)); |
9ae529ec | 4035 | } |
428870ff | 4036 | |
ca95f70d OF |
4037 | if (spa->spa_load_max_txg != UINT64_MAX) { |
4038 | (void) spa_import_progress_set_max_txg(spa_guid(spa), | |
4039 | (u_longlong_t)spa->spa_load_max_txg); | |
4040 | } | |
4a0ee12a PZ |
4041 | spa_load_note(spa, "using uberblock with txg=%llu", |
4042 | (u_longlong_t)ub->ub_txg); | |
5caeef02 DB |
4043 | if (ub->ub_raidz_reflow_info != 0) { |
4044 | spa_load_note(spa, "uberblock raidz_reflow_info: " | |
4045 | "state=%u offset=%llu", | |
4046 | (int)RRSS_GET_STATE(ub), | |
4047 | (u_longlong_t)RRSS_GET_OFFSET(ub)); | |
4048 | } | |
4a0ee12a PZ |
4049 | |
4050 | ||
379ca9cf OF |
4051 | /* |
4052 | * For pools which have the multihost property on determine if the | |
4053 | * pool is truly inactive and can be safely imported. Prevent | |
4054 | * hosts which don't have a hostid set from importing the pool. | |
4055 | */ | |
6cb8e530 PZ |
4056 | activity_check = spa_activity_check_required(spa, ub, label, |
4057 | spa->spa_config); | |
379ca9cf | 4058 | if (activity_check) { |
379ca9cf | 4059 | if (ub->ub_mmp_magic == MMP_MAGIC && ub->ub_mmp_delay && |
25f06d67 | 4060 | spa_get_hostid(spa) == 0) { |
379ca9cf OF |
4061 | nvlist_free(label); |
4062 | fnvlist_add_uint64(spa->spa_load_info, | |
4063 | ZPOOL_CONFIG_MMP_STATE, MMP_STATE_NO_HOSTID); | |
4064 | return (spa_vdev_err(rvd, VDEV_AUX_ACTIVE, EREMOTEIO)); | |
4065 | } | |
4066 | ||
6cb8e530 | 4067 | int error = spa_activity_check(spa, ub, spa->spa_config); |
e889f0f5 OF |
4068 | if (error) { |
4069 | nvlist_free(label); | |
4070 | return (error); | |
4071 | } | |
4072 | ||
379ca9cf OF |
4073 | fnvlist_add_uint64(spa->spa_load_info, |
4074 | ZPOOL_CONFIG_MMP_STATE, MMP_STATE_INACTIVE); | |
4075 | fnvlist_add_uint64(spa->spa_load_info, | |
4076 | ZPOOL_CONFIG_MMP_TXG, ub->ub_txg); | |
060f0226 OF |
4077 | fnvlist_add_uint16(spa->spa_load_info, |
4078 | ZPOOL_CONFIG_MMP_SEQ, | |
4079 | (MMP_SEQ_VALID(ub) ? MMP_SEQ(ub) : 0)); | |
379ca9cf OF |
4080 | } |
4081 | ||
428870ff | 4082 | /* |
9ae529ec | 4083 | * If the pool has an unsupported version we can't open it. |
428870ff | 4084 | */ |
9ae529ec CS |
4085 | if (!SPA_VERSION_IS_SUPPORTED(ub->ub_version)) { |
4086 | nvlist_free(label); | |
4a0ee12a PZ |
4087 | spa_load_failed(spa, "version %llu is not supported", |
4088 | (u_longlong_t)ub->ub_version); | |
428870ff | 4089 | return (spa_vdev_err(rvd, VDEV_AUX_VERSION_NEWER, ENOTSUP)); |
9ae529ec CS |
4090 | } |
4091 | ||
4092 | if (ub->ub_version >= SPA_VERSION_FEATURES) { | |
4093 | nvlist_t *features; | |
4094 | ||
4095 | /* | |
4096 | * If we weren't able to find what's necessary for reading the | |
4097 | * MOS in the label, return failure. | |
4098 | */ | |
4a0ee12a PZ |
4099 | if (label == NULL) { |
4100 | spa_load_failed(spa, "label config unavailable"); | |
4101 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, | |
4102 | ENXIO)); | |
4103 | } | |
4104 | ||
4105 | if (nvlist_lookup_nvlist(label, ZPOOL_CONFIG_FEATURES_FOR_READ, | |
4106 | &features) != 0) { | |
9ae529ec | 4107 | nvlist_free(label); |
4a0ee12a PZ |
4108 | spa_load_failed(spa, "invalid label: '%s' missing", |
4109 | ZPOOL_CONFIG_FEATURES_FOR_READ); | |
9ae529ec CS |
4110 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, |
4111 | ENXIO)); | |
4112 | } | |
4113 | ||
4114 | /* | |
4115 | * Update our in-core representation with the definitive values | |
4116 | * from the label. | |
4117 | */ | |
4118 | nvlist_free(spa->spa_label_features); | |
65ad5d11 | 4119 | spa->spa_label_features = fnvlist_dup(features); |
9ae529ec CS |
4120 | } |
4121 | ||
4122 | nvlist_free(label); | |
4123 | ||
4124 | /* | |
4125 | * Look through entries in the label nvlist's features_for_read. If | |
4126 | * there is a feature listed there which we don't understand then we | |
4127 | * cannot open a pool. | |
4128 | */ | |
4129 | if (ub->ub_version >= SPA_VERSION_FEATURES) { | |
4130 | nvlist_t *unsup_feat; | |
9ae529ec | 4131 | |
65ad5d11 | 4132 | unsup_feat = fnvlist_alloc(); |
9ae529ec | 4133 | |
1c27024e DB |
4134 | for (nvpair_t *nvp = nvlist_next_nvpair(spa->spa_label_features, |
4135 | NULL); nvp != NULL; | |
9ae529ec CS |
4136 | nvp = nvlist_next_nvpair(spa->spa_label_features, nvp)) { |
4137 | if (!zfeature_is_supported(nvpair_name(nvp))) { | |
65ad5d11 AJ |
4138 | fnvlist_add_string(unsup_feat, |
4139 | nvpair_name(nvp), ""); | |
9ae529ec CS |
4140 | } |
4141 | } | |
4142 | ||
4143 | if (!nvlist_empty(unsup_feat)) { | |
65ad5d11 AJ |
4144 | fnvlist_add_nvlist(spa->spa_load_info, |
4145 | ZPOOL_CONFIG_UNSUP_FEAT, unsup_feat); | |
9ae529ec | 4146 | nvlist_free(unsup_feat); |
4a0ee12a | 4147 | spa_load_failed(spa, "some features are unsupported"); |
9ae529ec CS |
4148 | return (spa_vdev_err(rvd, VDEV_AUX_UNSUP_FEAT, |
4149 | ENOTSUP)); | |
4150 | } | |
4151 | ||
4152 | nvlist_free(unsup_feat); | |
4153 | } | |
428870ff | 4154 | |
428870ff BB |
4155 | if (type != SPA_IMPORT_ASSEMBLE && spa->spa_config_splitting) { |
4156 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); | |
6cb8e530 | 4157 | spa_try_repair(spa, spa->spa_config); |
428870ff BB |
4158 | spa_config_exit(spa, SCL_ALL, FTAG); |
4159 | nvlist_free(spa->spa_config_splitting); | |
4160 | spa->spa_config_splitting = NULL; | |
4161 | } | |
4162 | ||
4163 | /* | |
4164 | * Initialize internal SPA structures. | |
4165 | */ | |
d2734cce | 4166 | spa_ld_select_uberblock_done(spa, ub); |
428870ff | 4167 | |
9eb7b46e PZ |
4168 | return (0); |
4169 | } | |
4170 | ||
4171 | static int | |
4172 | spa_ld_open_rootbp(spa_t *spa) | |
4173 | { | |
4174 | int error = 0; | |
4175 | vdev_t *rvd = spa->spa_root_vdev; | |
a1d477c2 | 4176 | |
9ae529ec | 4177 | error = dsl_pool_init(spa, spa->spa_first_txg, &spa->spa_dsl_pool); |
4a0ee12a PZ |
4178 | if (error != 0) { |
4179 | spa_load_failed(spa, "unable to open rootbp in dsl_pool_init " | |
4180 | "[error=%d]", error); | |
428870ff | 4181 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4a0ee12a | 4182 | } |
428870ff BB |
4183 | spa->spa_meta_objset = spa->spa_dsl_pool->dp_meta_objset; |
4184 | ||
9eb7b46e PZ |
4185 | return (0); |
4186 | } | |
4187 | ||
4188 | static int | |
d2734cce | 4189 | spa_ld_trusted_config(spa_t *spa, spa_import_type_t type, |
6cb8e530 | 4190 | boolean_t reloading) |
9eb7b46e | 4191 | { |
6cb8e530 PZ |
4192 | vdev_t *mrvd, *rvd = spa->spa_root_vdev; |
4193 | nvlist_t *nv, *mos_config, *policy; | |
4194 | int error = 0, copy_error; | |
4195 | uint64_t healthy_tvds, healthy_tvds_mos; | |
4196 | uint64_t mos_config_txg; | |
9eb7b46e | 4197 | |
4a0ee12a PZ |
4198 | if (spa_dir_prop(spa, DMU_POOL_CONFIG, &spa->spa_config_object, B_TRUE) |
4199 | != 0) | |
428870ff BB |
4200 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4201 | ||
a1d477c2 | 4202 | /* |
6cb8e530 PZ |
4203 | * If we're assembling a pool from a split, the config provided is |
4204 | * already trusted so there is nothing to do. | |
a1d477c2 | 4205 | */ |
6cb8e530 PZ |
4206 | if (type == SPA_IMPORT_ASSEMBLE) |
4207 | return (0); | |
4208 | ||
4209 | healthy_tvds = spa_healthy_core_tvds(spa); | |
a1d477c2 | 4210 | |
6cb8e530 PZ |
4211 | if (load_nvlist(spa, spa->spa_config_object, &mos_config) |
4212 | != 0) { | |
4213 | spa_load_failed(spa, "unable to retrieve MOS config"); | |
4214 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); | |
4215 | } | |
4216 | ||
4217 | /* | |
4218 | * If we are doing an open, pool owner wasn't verified yet, thus do | |
4219 | * the verification here. | |
4220 | */ | |
4221 | if (spa->spa_load_state == SPA_LOAD_OPEN) { | |
4222 | error = spa_verify_host(spa, mos_config); | |
4223 | if (error != 0) { | |
a1d477c2 | 4224 | nvlist_free(mos_config); |
6cb8e530 | 4225 | return (error); |
a1d477c2 | 4226 | } |
6cb8e530 PZ |
4227 | } |
4228 | ||
4229 | nv = fnvlist_lookup_nvlist(mos_config, ZPOOL_CONFIG_VDEV_TREE); | |
a1d477c2 | 4230 | |
6cb8e530 PZ |
4231 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
4232 | ||
4233 | /* | |
4234 | * Build a new vdev tree from the trusted config | |
4235 | */ | |
b2255edc BB |
4236 | error = spa_config_parse(spa, &mrvd, nv, NULL, 0, VDEV_ALLOC_LOAD); |
4237 | if (error != 0) { | |
4238 | nvlist_free(mos_config); | |
4239 | spa_config_exit(spa, SCL_ALL, FTAG); | |
4240 | spa_load_failed(spa, "spa_config_parse failed [error=%d]", | |
4241 | error); | |
4242 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, error)); | |
4243 | } | |
6cb8e530 PZ |
4244 | |
4245 | /* | |
4246 | * Vdev paths in the MOS may be obsolete. If the untrusted config was | |
4247 | * obtained by scanning /dev/dsk, then it will have the right vdev | |
4248 | * paths. We update the trusted MOS config with this information. | |
4249 | * We first try to copy the paths with vdev_copy_path_strict, which | |
4250 | * succeeds only when both configs have exactly the same vdev tree. | |
4251 | * If that fails, we fall back to a more flexible method that has a | |
4252 | * best effort policy. | |
4253 | */ | |
4254 | copy_error = vdev_copy_path_strict(rvd, mrvd); | |
4255 | if (copy_error != 0 || spa_load_print_vdev_tree) { | |
4256 | spa_load_note(spa, "provided vdev tree:"); | |
4257 | vdev_dbgmsg_print_tree(rvd, 2); | |
4258 | spa_load_note(spa, "MOS vdev tree:"); | |
4259 | vdev_dbgmsg_print_tree(mrvd, 2); | |
4260 | } | |
4261 | if (copy_error != 0) { | |
4262 | spa_load_note(spa, "vdev_copy_path_strict failed, falling " | |
4263 | "back to vdev_copy_path_relaxed"); | |
4264 | vdev_copy_path_relaxed(rvd, mrvd); | |
4265 | } | |
4266 | ||
4267 | vdev_close(rvd); | |
4268 | vdev_free(rvd); | |
4269 | spa->spa_root_vdev = mrvd; | |
4270 | rvd = mrvd; | |
4271 | spa_config_exit(spa, SCL_ALL, FTAG); | |
4272 | ||
54b1b1d8 RN |
4273 | /* |
4274 | * If 'zpool import' used a cached config, then the on-disk hostid and | |
4275 | * hostname may be different to the cached config in ways that should | |
4276 | * prevent import. Userspace can't discover this without a scan, but | |
4277 | * we know, so we add these values to LOAD_INFO so the caller can know | |
4278 | * the difference. | |
4279 | * | |
4280 | * Note that we have to do this before the config is regenerated, | |
4281 | * because the new config will have the hostid and hostname for this | |
4282 | * host, in readiness for import. | |
4283 | */ | |
4284 | if (nvlist_exists(mos_config, ZPOOL_CONFIG_HOSTID)) | |
4285 | fnvlist_add_uint64(spa->spa_load_info, ZPOOL_CONFIG_HOSTID, | |
4286 | fnvlist_lookup_uint64(mos_config, ZPOOL_CONFIG_HOSTID)); | |
4287 | if (nvlist_exists(mos_config, ZPOOL_CONFIG_HOSTNAME)) | |
4288 | fnvlist_add_string(spa->spa_load_info, ZPOOL_CONFIG_HOSTNAME, | |
4289 | fnvlist_lookup_string(mos_config, ZPOOL_CONFIG_HOSTNAME)); | |
4290 | ||
6cb8e530 PZ |
4291 | /* |
4292 | * We will use spa_config if we decide to reload the spa or if spa_load | |
4293 | * fails and we rewind. We must thus regenerate the config using the | |
8a393be3 PZ |
4294 | * MOS information with the updated paths. ZPOOL_LOAD_POLICY is used to |
4295 | * pass settings on how to load the pool and is not stored in the MOS. | |
4296 | * We copy it over to our new, trusted config. | |
6cb8e530 PZ |
4297 | */ |
4298 | mos_config_txg = fnvlist_lookup_uint64(mos_config, | |
4299 | ZPOOL_CONFIG_POOL_TXG); | |
4300 | nvlist_free(mos_config); | |
4301 | mos_config = spa_config_generate(spa, NULL, mos_config_txg, B_FALSE); | |
8a393be3 | 4302 | if (nvlist_lookup_nvlist(spa->spa_config, ZPOOL_LOAD_POLICY, |
6cb8e530 | 4303 | &policy) == 0) |
8a393be3 | 4304 | fnvlist_add_nvlist(mos_config, ZPOOL_LOAD_POLICY, policy); |
6cb8e530 PZ |
4305 | spa_config_set(spa, mos_config); |
4306 | spa->spa_config_source = SPA_CONFIG_SRC_MOS; | |
4307 | ||
4308 | /* | |
4309 | * Now that we got the config from the MOS, we should be more strict | |
4310 | * in checking blkptrs and can make assumptions about the consistency | |
4311 | * of the vdev tree. spa_trust_config must be set to true before opening | |
4312 | * vdevs in order for them to be writeable. | |
4313 | */ | |
4314 | spa->spa_trust_config = B_TRUE; | |
4315 | ||
4316 | /* | |
4317 | * Open and validate the new vdev tree | |
4318 | */ | |
4319 | error = spa_ld_open_vdevs(spa); | |
4320 | if (error != 0) | |
4321 | return (error); | |
4322 | ||
4323 | error = spa_ld_validate_vdevs(spa); | |
4324 | if (error != 0) | |
4325 | return (error); | |
4326 | ||
4327 | if (copy_error != 0 || spa_load_print_vdev_tree) { | |
4328 | spa_load_note(spa, "final vdev tree:"); | |
4329 | vdev_dbgmsg_print_tree(rvd, 2); | |
4330 | } | |
4331 | ||
4332 | if (spa->spa_load_state != SPA_LOAD_TRYIMPORT && | |
4333 | !spa->spa_extreme_rewind && zfs_max_missing_tvds == 0) { | |
a1d477c2 | 4334 | /* |
6cb8e530 PZ |
4335 | * Sanity check to make sure that we are indeed loading the |
4336 | * latest uberblock. If we missed SPA_SYNC_MIN_VDEVS tvds | |
4337 | * in the config provided and they happened to be the only ones | |
4338 | * to have the latest uberblock, we could involuntarily perform | |
4339 | * an extreme rewind. | |
a1d477c2 | 4340 | */ |
6cb8e530 PZ |
4341 | healthy_tvds_mos = spa_healthy_core_tvds(spa); |
4342 | if (healthy_tvds_mos - healthy_tvds >= | |
4343 | SPA_SYNC_MIN_VDEVS) { | |
4344 | spa_load_note(spa, "config provided misses too many " | |
4345 | "top-level vdevs compared to MOS (%lld vs %lld). ", | |
4346 | (u_longlong_t)healthy_tvds, | |
4347 | (u_longlong_t)healthy_tvds_mos); | |
4348 | spa_load_note(spa, "vdev tree:"); | |
4349 | vdev_dbgmsg_print_tree(rvd, 2); | |
4350 | if (reloading) { | |
4351 | spa_load_failed(spa, "config was already " | |
4352 | "provided from MOS. Aborting."); | |
4353 | return (spa_vdev_err(rvd, | |
4354 | VDEV_AUX_CORRUPT_DATA, EIO)); | |
4355 | } | |
4356 | spa_load_note(spa, "spa must be reloaded using MOS " | |
4357 | "config"); | |
4358 | return (SET_ERROR(EAGAIN)); | |
4a0ee12a | 4359 | } |
a1d477c2 MA |
4360 | } |
4361 | ||
6cb8e530 PZ |
4362 | error = spa_check_for_missing_logs(spa); |
4363 | if (error != 0) | |
4364 | return (spa_vdev_err(rvd, VDEV_AUX_BAD_GUID_SUM, ENXIO)); | |
4365 | ||
4366 | if (rvd->vdev_guid_sum != spa->spa_uberblock.ub_guid_sum) { | |
4367 | spa_load_failed(spa, "uberblock guid sum doesn't match MOS " | |
4368 | "guid sum (%llu != %llu)", | |
4369 | (u_longlong_t)spa->spa_uberblock.ub_guid_sum, | |
4370 | (u_longlong_t)rvd->vdev_guid_sum); | |
4371 | return (spa_vdev_err(rvd, VDEV_AUX_BAD_GUID_SUM, | |
4372 | ENXIO)); | |
4373 | } | |
4374 | ||
9eb7b46e PZ |
4375 | return (0); |
4376 | } | |
4377 | ||
4378 | static int | |
4379 | spa_ld_open_indirect_vdev_metadata(spa_t *spa) | |
4380 | { | |
4381 | int error = 0; | |
4382 | vdev_t *rvd = spa->spa_root_vdev; | |
4383 | ||
a1d477c2 MA |
4384 | /* |
4385 | * Everything that we read before spa_remove_init() must be stored | |
4386 | * on concreted vdevs. Therefore we do this as early as possible. | |
4387 | */ | |
4a0ee12a PZ |
4388 | error = spa_remove_init(spa); |
4389 | if (error != 0) { | |
4390 | spa_load_failed(spa, "spa_remove_init failed [error=%d]", | |
4391 | error); | |
a1d477c2 | 4392 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4a0ee12a | 4393 | } |
a1d477c2 | 4394 | |
9eb7b46e PZ |
4395 | /* |
4396 | * Retrieve information needed to condense indirect vdev mappings. | |
4397 | */ | |
4398 | error = spa_condense_init(spa); | |
4399 | if (error != 0) { | |
4a0ee12a PZ |
4400 | spa_load_failed(spa, "spa_condense_init failed [error=%d]", |
4401 | error); | |
9eb7b46e PZ |
4402 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, error)); |
4403 | } | |
4404 | ||
4405 | return (0); | |
4406 | } | |
4407 | ||
4408 | static int | |
4a0ee12a | 4409 | spa_ld_check_features(spa_t *spa, boolean_t *missing_feat_writep) |
9eb7b46e PZ |
4410 | { |
4411 | int error = 0; | |
4412 | vdev_t *rvd = spa->spa_root_vdev; | |
4413 | ||
9ae529ec CS |
4414 | if (spa_version(spa) >= SPA_VERSION_FEATURES) { |
4415 | boolean_t missing_feat_read = B_FALSE; | |
b9b24bb4 | 4416 | nvlist_t *unsup_feat, *enabled_feat; |
9ae529ec CS |
4417 | |
4418 | if (spa_dir_prop(spa, DMU_POOL_FEATURES_FOR_READ, | |
4a0ee12a | 4419 | &spa->spa_feat_for_read_obj, B_TRUE) != 0) { |
9ae529ec CS |
4420 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4421 | } | |
4422 | ||
4423 | if (spa_dir_prop(spa, DMU_POOL_FEATURES_FOR_WRITE, | |
4a0ee12a | 4424 | &spa->spa_feat_for_write_obj, B_TRUE) != 0) { |
9ae529ec CS |
4425 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4426 | } | |
4427 | ||
4428 | if (spa_dir_prop(spa, DMU_POOL_FEATURE_DESCRIPTIONS, | |
4a0ee12a | 4429 | &spa->spa_feat_desc_obj, B_TRUE) != 0) { |
9ae529ec CS |
4430 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4431 | } | |
4432 | ||
b9b24bb4 CS |
4433 | enabled_feat = fnvlist_alloc(); |
4434 | unsup_feat = fnvlist_alloc(); | |
9ae529ec | 4435 | |
fa86b5db | 4436 | if (!spa_features_check(spa, B_FALSE, |
b9b24bb4 | 4437 | unsup_feat, enabled_feat)) |
9ae529ec CS |
4438 | missing_feat_read = B_TRUE; |
4439 | ||
4a0ee12a PZ |
4440 | if (spa_writeable(spa) || |
4441 | spa->spa_load_state == SPA_LOAD_TRYIMPORT) { | |
fa86b5db | 4442 | if (!spa_features_check(spa, B_TRUE, |
b9b24bb4 | 4443 | unsup_feat, enabled_feat)) { |
9eb7b46e | 4444 | *missing_feat_writep = B_TRUE; |
b9b24bb4 | 4445 | } |
9ae529ec CS |
4446 | } |
4447 | ||
b9b24bb4 CS |
4448 | fnvlist_add_nvlist(spa->spa_load_info, |
4449 | ZPOOL_CONFIG_ENABLED_FEAT, enabled_feat); | |
4450 | ||
9ae529ec | 4451 | if (!nvlist_empty(unsup_feat)) { |
b9b24bb4 CS |
4452 | fnvlist_add_nvlist(spa->spa_load_info, |
4453 | ZPOOL_CONFIG_UNSUP_FEAT, unsup_feat); | |
9ae529ec CS |
4454 | } |
4455 | ||
b9b24bb4 CS |
4456 | fnvlist_free(enabled_feat); |
4457 | fnvlist_free(unsup_feat); | |
9ae529ec CS |
4458 | |
4459 | if (!missing_feat_read) { | |
4460 | fnvlist_add_boolean(spa->spa_load_info, | |
4461 | ZPOOL_CONFIG_CAN_RDONLY); | |
4462 | } | |
4463 | ||
4464 | /* | |
4465 | * If the state is SPA_LOAD_TRYIMPORT, our objective is | |
4466 | * twofold: to determine whether the pool is available for | |
4467 | * import in read-write mode and (if it is not) whether the | |
4468 | * pool is available for import in read-only mode. If the pool | |
4469 | * is available for import in read-write mode, it is displayed | |
4470 | * as available in userland; if it is not available for import | |
4471 | * in read-only mode, it is displayed as unavailable in | |
4472 | * userland. If the pool is available for import in read-only | |
4473 | * mode but not read-write mode, it is displayed as unavailable | |
4474 | * in userland with a special note that the pool is actually | |
4475 | * available for open in read-only mode. | |
4476 | * | |
4477 | * As a result, if the state is SPA_LOAD_TRYIMPORT and we are | |
4478 | * missing a feature for write, we must first determine whether | |
4479 | * the pool can be opened read-only before returning to | |
4480 | * userland in order to know whether to display the | |
4481 | * abovementioned note. | |
4482 | */ | |
9eb7b46e | 4483 | if (missing_feat_read || (*missing_feat_writep && |
9ae529ec | 4484 | spa_writeable(spa))) { |
4a0ee12a | 4485 | spa_load_failed(spa, "pool uses unsupported features"); |
9ae529ec CS |
4486 | return (spa_vdev_err(rvd, VDEV_AUX_UNSUP_FEAT, |
4487 | ENOTSUP)); | |
4488 | } | |
b0bc7a84 MG |
4489 | |
4490 | /* | |
4491 | * Load refcounts for ZFS features from disk into an in-memory | |
4492 | * cache during SPA initialization. | |
4493 | */ | |
1c27024e | 4494 | for (spa_feature_t i = 0; i < SPA_FEATURES; i++) { |
b0bc7a84 MG |
4495 | uint64_t refcount; |
4496 | ||
4497 | error = feature_get_refcount_from_disk(spa, | |
4498 | &spa_feature_table[i], &refcount); | |
4499 | if (error == 0) { | |
4500 | spa->spa_feat_refcount_cache[i] = refcount; | |
4501 | } else if (error == ENOTSUP) { | |
4502 | spa->spa_feat_refcount_cache[i] = | |
4503 | SPA_FEATURE_DISABLED; | |
4504 | } else { | |
4a0ee12a PZ |
4505 | spa_load_failed(spa, "error getting refcount " |
4506 | "for feature %s [error=%d]", | |
4507 | spa_feature_table[i].fi_guid, error); | |
b0bc7a84 MG |
4508 | return (spa_vdev_err(rvd, |
4509 | VDEV_AUX_CORRUPT_DATA, EIO)); | |
4510 | } | |
4511 | } | |
4512 | } | |
4513 | ||
4514 | if (spa_feature_is_active(spa, SPA_FEATURE_ENABLED_TXG)) { | |
4515 | if (spa_dir_prop(spa, DMU_POOL_FEATURE_ENABLED_TXG, | |
4a0ee12a | 4516 | &spa->spa_feat_enabled_txg_obj, B_TRUE) != 0) |
b0bc7a84 | 4517 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
9ae529ec CS |
4518 | } |
4519 | ||
f00ab3f2 TC |
4520 | /* |
4521 | * Encryption was added before bookmark_v2, even though bookmark_v2 | |
4522 | * is now a dependency. If this pool has encryption enabled without | |
4523 | * bookmark_v2, trigger an errata message. | |
4524 | */ | |
4525 | if (spa_feature_is_enabled(spa, SPA_FEATURE_ENCRYPTION) && | |
4526 | !spa_feature_is_enabled(spa, SPA_FEATURE_BOOKMARK_V2)) { | |
4527 | spa->spa_errata = ZPOOL_ERRATA_ZOL_8308_ENCRYPTION; | |
4528 | } | |
4529 | ||
9eb7b46e PZ |
4530 | return (0); |
4531 | } | |
4532 | ||
4533 | static int | |
4534 | spa_ld_load_special_directories(spa_t *spa) | |
4535 | { | |
4536 | int error = 0; | |
4537 | vdev_t *rvd = spa->spa_root_vdev; | |
4538 | ||
9ae529ec CS |
4539 | spa->spa_is_initializing = B_TRUE; |
4540 | error = dsl_pool_open(spa->spa_dsl_pool); | |
4541 | spa->spa_is_initializing = B_FALSE; | |
4a0ee12a PZ |
4542 | if (error != 0) { |
4543 | spa_load_failed(spa, "dsl_pool_open failed [error=%d]", error); | |
9ae529ec | 4544 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4a0ee12a | 4545 | } |
9ae529ec | 4546 | |
9eb7b46e PZ |
4547 | return (0); |
4548 | } | |
428870ff | 4549 | |
9eb7b46e PZ |
4550 | static int |
4551 | spa_ld_get_props(spa_t *spa) | |
4552 | { | |
4553 | int error = 0; | |
4554 | uint64_t obj; | |
4555 | vdev_t *rvd = spa->spa_root_vdev; | |
34dc7c2f | 4556 | |
3c67d83a TH |
4557 | /* Grab the checksum salt from the MOS. */ |
4558 | error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, | |
4559 | DMU_POOL_CHECKSUM_SALT, 1, | |
4560 | sizeof (spa->spa_cksum_salt.zcs_bytes), | |
4561 | spa->spa_cksum_salt.zcs_bytes); | |
4562 | if (error == ENOENT) { | |
4563 | /* Generate a new salt for subsequent use */ | |
4564 | (void) random_get_pseudo_bytes(spa->spa_cksum_salt.zcs_bytes, | |
4565 | sizeof (spa->spa_cksum_salt.zcs_bytes)); | |
4566 | } else if (error != 0) { | |
4a0ee12a PZ |
4567 | spa_load_failed(spa, "unable to retrieve checksum salt from " |
4568 | "MOS [error=%d]", error); | |
3c67d83a TH |
4569 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4570 | } | |
4571 | ||
4a0ee12a | 4572 | if (spa_dir_prop(spa, DMU_POOL_SYNC_BPOBJ, &obj, B_TRUE) != 0) |
428870ff BB |
4573 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4574 | error = bpobj_open(&spa->spa_deferred_bpobj, spa->spa_meta_objset, obj); | |
4a0ee12a PZ |
4575 | if (error != 0) { |
4576 | spa_load_failed(spa, "error opening deferred-frees bpobj " | |
4577 | "[error=%d]", error); | |
428870ff | 4578 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4a0ee12a | 4579 | } |
34dc7c2f BB |
4580 | |
4581 | /* | |
4582 | * Load the bit that tells us to use the new accounting function | |
4583 | * (raid-z deflation). If we have an older pool, this will not | |
4584 | * be present. | |
4585 | */ | |
4a0ee12a | 4586 | error = spa_dir_prop(spa, DMU_POOL_DEFLATE, &spa->spa_deflate, B_FALSE); |
428870ff BB |
4587 | if (error != 0 && error != ENOENT) |
4588 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); | |
4589 | ||
4590 | error = spa_dir_prop(spa, DMU_POOL_CREATION_VERSION, | |
4a0ee12a | 4591 | &spa->spa_creation_version, B_FALSE); |
428870ff BB |
4592 | if (error != 0 && error != ENOENT) |
4593 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); | |
34dc7c2f BB |
4594 | |
4595 | /* | |
4596 | * Load the persistent error log. If we have an older pool, this will | |
4597 | * not be present. | |
4598 | */ | |
4a0ee12a PZ |
4599 | error = spa_dir_prop(spa, DMU_POOL_ERRLOG_LAST, &spa->spa_errlog_last, |
4600 | B_FALSE); | |
428870ff BB |
4601 | if (error != 0 && error != ENOENT) |
4602 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); | |
34dc7c2f | 4603 | |
428870ff | 4604 | error = spa_dir_prop(spa, DMU_POOL_ERRLOG_SCRUB, |
4a0ee12a | 4605 | &spa->spa_errlog_scrub, B_FALSE); |
428870ff BB |
4606 | if (error != 0 && error != ENOENT) |
4607 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); | |
34dc7c2f | 4608 | |
37f03da8 SH |
4609 | /* |
4610 | * Load the livelist deletion field. If a livelist is queued for | |
4611 | * deletion, indicate that in the spa | |
4612 | */ | |
4613 | error = spa_dir_prop(spa, DMU_POOL_DELETED_CLONES, | |
4614 | &spa->spa_livelists_to_delete, B_FALSE); | |
4615 | if (error != 0 && error != ENOENT) | |
4616 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); | |
4617 | ||
34dc7c2f BB |
4618 | /* |
4619 | * Load the history object. If we have an older pool, this | |
4620 | * will not be present. | |
4621 | */ | |
4a0ee12a | 4622 | error = spa_dir_prop(spa, DMU_POOL_HISTORY, &spa->spa_history, B_FALSE); |
428870ff BB |
4623 | if (error != 0 && error != ENOENT) |
4624 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); | |
4625 | ||
e0ab3ab5 JS |
4626 | /* |
4627 | * Load the per-vdev ZAP map. If we have an older pool, this will not | |
4628 | * be present; in this case, defer its creation to a later time to | |
4629 | * avoid dirtying the MOS this early / out of sync context. See | |
4630 | * spa_sync_config_object. | |
4631 | */ | |
4632 | ||
4633 | /* The sentinel is only available in the MOS config. */ | |
1c27024e | 4634 | nvlist_t *mos_config; |
4a0ee12a PZ |
4635 | if (load_nvlist(spa, spa->spa_config_object, &mos_config) != 0) { |
4636 | spa_load_failed(spa, "unable to retrieve MOS config"); | |
e0ab3ab5 | 4637 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4a0ee12a | 4638 | } |
e0ab3ab5 JS |
4639 | |
4640 | error = spa_dir_prop(spa, DMU_POOL_VDEV_ZAP_MAP, | |
4a0ee12a | 4641 | &spa->spa_all_vdev_zaps, B_FALSE); |
e0ab3ab5 | 4642 | |
38640550 DB |
4643 | if (error == ENOENT) { |
4644 | VERIFY(!nvlist_exists(mos_config, | |
4645 | ZPOOL_CONFIG_HAS_PER_VDEV_ZAPS)); | |
4646 | spa->spa_avz_action = AVZ_ACTION_INITIALIZE; | |
4647 | ASSERT0(vdev_count_verify_zaps(spa->spa_root_vdev)); | |
4648 | } else if (error != 0) { | |
cb01da68 | 4649 | nvlist_free(mos_config); |
e0ab3ab5 | 4650 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
38640550 | 4651 | } else if (!nvlist_exists(mos_config, ZPOOL_CONFIG_HAS_PER_VDEV_ZAPS)) { |
e0ab3ab5 JS |
4652 | /* |
4653 | * An older version of ZFS overwrote the sentinel value, so | |
4654 | * we have orphaned per-vdev ZAPs in the MOS. Defer their | |
4655 | * destruction to later; see spa_sync_config_object. | |
4656 | */ | |
4657 | spa->spa_avz_action = AVZ_ACTION_DESTROY; | |
4658 | /* | |
4659 | * We're assuming that no vdevs have had their ZAPs created | |
4660 | * before this. Better be sure of it. | |
4661 | */ | |
4662 | ASSERT0(vdev_count_verify_zaps(spa->spa_root_vdev)); | |
4663 | } | |
4664 | nvlist_free(mos_config); | |
4665 | ||
9eb7b46e PZ |
4666 | spa->spa_delegation = zpool_prop_default_numeric(ZPOOL_PROP_DELEGATION); |
4667 | ||
4a0ee12a PZ |
4668 | error = spa_dir_prop(spa, DMU_POOL_PROPS, &spa->spa_pool_props_object, |
4669 | B_FALSE); | |
9eb7b46e PZ |
4670 | if (error && error != ENOENT) |
4671 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); | |
4672 | ||
4673 | if (error == 0) { | |
da27b8bc | 4674 | uint64_t autoreplace = 0; |
9eb7b46e PZ |
4675 | |
4676 | spa_prop_find(spa, ZPOOL_PROP_BOOTFS, &spa->spa_bootfs); | |
4677 | spa_prop_find(spa, ZPOOL_PROP_AUTOREPLACE, &autoreplace); | |
4678 | spa_prop_find(spa, ZPOOL_PROP_DELEGATION, &spa->spa_delegation); | |
4679 | spa_prop_find(spa, ZPOOL_PROP_FAILUREMODE, &spa->spa_failmode); | |
4680 | spa_prop_find(spa, ZPOOL_PROP_AUTOEXPAND, &spa->spa_autoexpand); | |
c02c1bec | 4681 | spa_prop_find(spa, ZPOOL_PROP_MULTIHOST, &spa->spa_multihost); |
1b939560 | 4682 | spa_prop_find(spa, ZPOOL_PROP_AUTOTRIM, &spa->spa_autotrim); |
9eb7b46e PZ |
4683 | spa->spa_autoreplace = (autoreplace != 0); |
4684 | } | |
4685 | ||
6cb8e530 PZ |
4686 | /* |
4687 | * If we are importing a pool with missing top-level vdevs, | |
4688 | * we enforce that the pool doesn't panic or get suspended on | |
4689 | * error since the likelihood of missing data is extremely high. | |
4690 | */ | |
4691 | if (spa->spa_missing_tvds > 0 && | |
4692 | spa->spa_failmode != ZIO_FAILURE_MODE_CONTINUE && | |
4693 | spa->spa_load_state != SPA_LOAD_TRYIMPORT) { | |
4694 | spa_load_note(spa, "forcing failmode to 'continue' " | |
4695 | "as some top level vdevs are missing"); | |
4696 | spa->spa_failmode = ZIO_FAILURE_MODE_CONTINUE; | |
4697 | } | |
4698 | ||
9eb7b46e PZ |
4699 | return (0); |
4700 | } | |
4701 | ||
4702 | static int | |
4703 | spa_ld_open_aux_vdevs(spa_t *spa, spa_import_type_t type) | |
4704 | { | |
4705 | int error = 0; | |
4706 | vdev_t *rvd = spa->spa_root_vdev; | |
4707 | ||
428870ff BB |
4708 | /* |
4709 | * If we're assembling the pool from the split-off vdevs of | |
4710 | * an existing pool, we don't want to attach the spares & cache | |
4711 | * devices. | |
4712 | */ | |
34dc7c2f BB |
4713 | |
4714 | /* | |
4715 | * Load any hot spares for this pool. | |
4716 | */ | |
4a0ee12a PZ |
4717 | error = spa_dir_prop(spa, DMU_POOL_SPARES, &spa->spa_spares.sav_object, |
4718 | B_FALSE); | |
428870ff BB |
4719 | if (error != 0 && error != ENOENT) |
4720 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); | |
4721 | if (error == 0 && type != SPA_IMPORT_ASSEMBLE) { | |
34dc7c2f BB |
4722 | ASSERT(spa_version(spa) >= SPA_VERSION_SPARES); |
4723 | if (load_nvlist(spa, spa->spa_spares.sav_object, | |
4a0ee12a PZ |
4724 | &spa->spa_spares.sav_config) != 0) { |
4725 | spa_load_failed(spa, "error loading spares nvlist"); | |
428870ff | 4726 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4a0ee12a | 4727 | } |
34dc7c2f | 4728 | |
b128c09f | 4729 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f | 4730 | spa_load_spares(spa); |
b128c09f | 4731 | spa_config_exit(spa, SCL_ALL, FTAG); |
428870ff BB |
4732 | } else if (error == 0) { |
4733 | spa->spa_spares.sav_sync = B_TRUE; | |
34dc7c2f BB |
4734 | } |
4735 | ||
4736 | /* | |
4737 | * Load any level 2 ARC devices for this pool. | |
4738 | */ | |
428870ff | 4739 | error = spa_dir_prop(spa, DMU_POOL_L2CACHE, |
4a0ee12a | 4740 | &spa->spa_l2cache.sav_object, B_FALSE); |
428870ff BB |
4741 | if (error != 0 && error != ENOENT) |
4742 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); | |
4743 | if (error == 0 && type != SPA_IMPORT_ASSEMBLE) { | |
34dc7c2f BB |
4744 | ASSERT(spa_version(spa) >= SPA_VERSION_L2CACHE); |
4745 | if (load_nvlist(spa, spa->spa_l2cache.sav_object, | |
4a0ee12a PZ |
4746 | &spa->spa_l2cache.sav_config) != 0) { |
4747 | spa_load_failed(spa, "error loading l2cache nvlist"); | |
428870ff | 4748 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4a0ee12a | 4749 | } |
34dc7c2f | 4750 | |
b128c09f | 4751 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f | 4752 | spa_load_l2cache(spa); |
b128c09f | 4753 | spa_config_exit(spa, SCL_ALL, FTAG); |
428870ff BB |
4754 | } else if (error == 0) { |
4755 | spa->spa_l2cache.sav_sync = B_TRUE; | |
b128c09f BB |
4756 | } |
4757 | ||
9eb7b46e PZ |
4758 | return (0); |
4759 | } | |
428870ff | 4760 | |
9eb7b46e | 4761 | static int |
4a0ee12a | 4762 | spa_ld_load_vdev_metadata(spa_t *spa) |
9eb7b46e PZ |
4763 | { |
4764 | int error = 0; | |
4765 | vdev_t *rvd = spa->spa_root_vdev; | |
34dc7c2f | 4766 | |
379ca9cf OF |
4767 | /* |
4768 | * If the 'multihost' property is set, then never allow a pool to | |
4769 | * be imported when the system hostid is zero. The exception to | |
4770 | * this rule is zdb which is always allowed to access pools. | |
4771 | */ | |
25f06d67 | 4772 | if (spa_multihost(spa) && spa_get_hostid(spa) == 0 && |
379ca9cf OF |
4773 | (spa->spa_import_flags & ZFS_IMPORT_SKIP_MMP) == 0) { |
4774 | fnvlist_add_uint64(spa->spa_load_info, | |
4775 | ZPOOL_CONFIG_MMP_STATE, MMP_STATE_NO_HOSTID); | |
4776 | return (spa_vdev_err(rvd, VDEV_AUX_ACTIVE, EREMOTEIO)); | |
4777 | } | |
4778 | ||
34dc7c2f BB |
4779 | /* |
4780 | * If the 'autoreplace' property is set, then post a resource notifying | |
4781 | * the ZFS DE that it should not issue any faults for unopenable | |
4782 | * devices. We also iterate over the vdevs, and post a sysevent for any | |
4783 | * unopenable vdevs so that the normal autoreplace handler can take | |
4784 | * over. | |
4785 | */ | |
4a0ee12a | 4786 | if (spa->spa_autoreplace && spa->spa_load_state != SPA_LOAD_TRYIMPORT) { |
34dc7c2f | 4787 | spa_check_removed(spa->spa_root_vdev); |
428870ff BB |
4788 | /* |
4789 | * For the import case, this is done in spa_import(), because | |
4790 | * at this point we're using the spare definitions from | |
4791 | * the MOS config, not necessarily from the userland config. | |
4792 | */ | |
4a0ee12a | 4793 | if (spa->spa_load_state != SPA_LOAD_IMPORT) { |
428870ff BB |
4794 | spa_aux_check_removed(&spa->spa_spares); |
4795 | spa_aux_check_removed(&spa->spa_l2cache); | |
4796 | } | |
4797 | } | |
34dc7c2f BB |
4798 | |
4799 | /* | |
9eb7b46e | 4800 | * Load the vdev metadata such as metaslabs, DTLs, spacemap object, etc. |
34dc7c2f | 4801 | */ |
a1d477c2 MA |
4802 | error = vdev_load(rvd); |
4803 | if (error != 0) { | |
4a0ee12a | 4804 | spa_load_failed(spa, "vdev_load failed [error=%d]", error); |
a1d477c2 MA |
4805 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, error)); |
4806 | } | |
4807 | ||
93e28d66 SD |
4808 | error = spa_ld_log_spacemaps(spa); |
4809 | if (error != 0) { | |
600a02b8 | 4810 | spa_load_failed(spa, "spa_ld_log_spacemaps failed [error=%d]", |
93e28d66 SD |
4811 | error); |
4812 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, error)); | |
4813 | } | |
4814 | ||
34dc7c2f | 4815 | /* |
9eb7b46e | 4816 | * Propagate the leaf DTLs we just loaded all the way up the vdev tree. |
34dc7c2f | 4817 | */ |
b128c09f | 4818 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
9a49d3f3 | 4819 | vdev_dtl_reassess(rvd, 0, 0, B_FALSE, B_FALSE); |
b128c09f | 4820 | spa_config_exit(spa, SCL_ALL, FTAG); |
34dc7c2f | 4821 | |
9eb7b46e PZ |
4822 | return (0); |
4823 | } | |
4824 | ||
4825 | static int | |
4826 | spa_ld_load_dedup_tables(spa_t *spa) | |
4827 | { | |
4828 | int error = 0; | |
4829 | vdev_t *rvd = spa->spa_root_vdev; | |
4830 | ||
428870ff | 4831 | error = ddt_load(spa); |
4a0ee12a PZ |
4832 | if (error != 0) { |
4833 | spa_load_failed(spa, "ddt_load failed [error=%d]", error); | |
428870ff | 4834 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); |
4a0ee12a | 4835 | } |
428870ff | 4836 | |
9eb7b46e PZ |
4837 | return (0); |
4838 | } | |
4839 | ||
67a1b037 PJD |
4840 | static int |
4841 | spa_ld_load_brt(spa_t *spa) | |
4842 | { | |
4843 | int error = 0; | |
4844 | vdev_t *rvd = spa->spa_root_vdev; | |
4845 | ||
4846 | error = brt_load(spa); | |
4847 | if (error != 0) { | |
4848 | spa_load_failed(spa, "brt_load failed [error=%d]", error); | |
4849 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO)); | |
4850 | } | |
4851 | ||
4852 | return (0); | |
4853 | } | |
4854 | ||
9eb7b46e | 4855 | static int |
a926aab9 | 4856 | spa_ld_verify_logs(spa_t *spa, spa_import_type_t type, const char **ereport) |
9eb7b46e PZ |
4857 | { |
4858 | vdev_t *rvd = spa->spa_root_vdev; | |
428870ff | 4859 | |
4a0ee12a PZ |
4860 | if (type != SPA_IMPORT_ASSEMBLE && spa_writeable(spa)) { |
4861 | boolean_t missing = spa_check_logs(spa); | |
4862 | if (missing) { | |
6cb8e530 PZ |
4863 | if (spa->spa_missing_tvds != 0) { |
4864 | spa_load_note(spa, "spa_check_logs failed " | |
4865 | "so dropping the logs"); | |
4866 | } else { | |
4867 | *ereport = FM_EREPORT_ZFS_LOG_REPLAY; | |
4868 | spa_load_failed(spa, "spa_check_logs failed"); | |
4869 | return (spa_vdev_err(rvd, VDEV_AUX_BAD_LOG, | |
4870 | ENXIO)); | |
4871 | } | |
4a0ee12a | 4872 | } |
428870ff BB |
4873 | } |
4874 | ||
9eb7b46e PZ |
4875 | return (0); |
4876 | } | |
4877 | ||
4878 | static int | |
4a0ee12a | 4879 | spa_ld_verify_pool_data(spa_t *spa) |
9eb7b46e PZ |
4880 | { |
4881 | int error = 0; | |
4882 | vdev_t *rvd = spa->spa_root_vdev; | |
4883 | ||
4884 | /* | |
4885 | * We've successfully opened the pool, verify that we're ready | |
4886 | * to start pushing transactions. | |
4887 | */ | |
4a0ee12a | 4888 | if (spa->spa_load_state != SPA_LOAD_TRYIMPORT) { |
9eb7b46e PZ |
4889 | error = spa_load_verify(spa); |
4890 | if (error != 0) { | |
4a0ee12a PZ |
4891 | spa_load_failed(spa, "spa_load_verify failed " |
4892 | "[error=%d]", error); | |
9eb7b46e PZ |
4893 | return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, |
4894 | error)); | |
4895 | } | |
4896 | } | |
4897 | ||
4898 | return (0); | |
4899 | } | |
4900 | ||
4901 | static void | |
4902 | spa_ld_claim_log_blocks(spa_t *spa) | |
4903 | { | |
4904 | dmu_tx_t *tx; | |
4905 | dsl_pool_t *dp = spa_get_dsl(spa); | |
4906 | ||
4907 | /* | |
4908 | * Claim log blocks that haven't been committed yet. | |
4909 | * This must all happen in a single txg. | |
4910 | * Note: spa_claim_max_txg is updated by spa_claim_notify(), | |
4911 | * invoked from zil_claim_log_block()'s i/o done callback. | |
4912 | * Price of rollback is that we abandon the log. | |
4913 | */ | |
4914 | spa->spa_claiming = B_TRUE; | |
4915 | ||
4916 | tx = dmu_tx_create_assigned(dp, spa_first_txg(spa)); | |
4917 | (void) dmu_objset_find_dp(dp, dp->dp_root_dir_obj, | |
4918 | zil_claim, tx, DS_FIND_CHILDREN); | |
4919 | dmu_tx_commit(tx); | |
4920 | ||
4921 | spa->spa_claiming = B_FALSE; | |
4922 | ||
4923 | spa_set_log_state(spa, SPA_LOG_GOOD); | |
4924 | } | |
4925 | ||
4926 | static void | |
6cb8e530 | 4927 | spa_ld_check_for_config_update(spa_t *spa, uint64_t config_cache_txg, |
d2734cce | 4928 | boolean_t update_config_cache) |
9eb7b46e PZ |
4929 | { |
4930 | vdev_t *rvd = spa->spa_root_vdev; | |
4931 | int need_update = B_FALSE; | |
4932 | ||
4933 | /* | |
4934 | * If the config cache is stale, or we have uninitialized | |
4935 | * metaslabs (see spa_vdev_add()), then update the config. | |
4936 | * | |
4937 | * If this is a verbatim import, trust the current | |
4938 | * in-core spa_config and update the disk labels. | |
4939 | */ | |
d2734cce | 4940 | if (update_config_cache || config_cache_txg != spa->spa_config_txg || |
4a0ee12a PZ |
4941 | spa->spa_load_state == SPA_LOAD_IMPORT || |
4942 | spa->spa_load_state == SPA_LOAD_RECOVER || | |
9eb7b46e PZ |
4943 | (spa->spa_import_flags & ZFS_IMPORT_VERBATIM)) |
4944 | need_update = B_TRUE; | |
4945 | ||
4946 | for (int c = 0; c < rvd->vdev_children; c++) | |
4947 | if (rvd->vdev_child[c]->vdev_ms_array == 0) | |
4948 | need_update = B_TRUE; | |
4949 | ||
4950 | /* | |
e1cfd73f | 4951 | * Update the config cache asynchronously in case we're the |
9eb7b46e PZ |
4952 | * root pool, in which case the config cache isn't writable yet. |
4953 | */ | |
4954 | if (need_update) | |
4955 | spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE); | |
4956 | } | |
4957 | ||
6cb8e530 PZ |
4958 | static void |
4959 | spa_ld_prepare_for_reload(spa_t *spa) | |
4960 | { | |
da92d5cb | 4961 | spa_mode_t mode = spa->spa_mode; |
6cb8e530 PZ |
4962 | int async_suspended = spa->spa_async_suspended; |
4963 | ||
4964 | spa_unload(spa); | |
4965 | spa_deactivate(spa); | |
4966 | spa_activate(spa, mode); | |
4967 | ||
4968 | /* | |
4969 | * We save the value of spa_async_suspended as it gets reset to 0 by | |
4970 | * spa_unload(). We want to restore it back to the original value before | |
4971 | * returning as we might be calling spa_async_resume() later. | |
4972 | */ | |
4973 | spa->spa_async_suspended = async_suspended; | |
4974 | } | |
4975 | ||
9eb7b46e | 4976 | static int |
d2734cce SD |
4977 | spa_ld_read_checkpoint_txg(spa_t *spa) |
4978 | { | |
4979 | uberblock_t checkpoint; | |
4980 | int error = 0; | |
4981 | ||
4982 | ASSERT0(spa->spa_checkpoint_txg); | |
4983 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); | |
4984 | ||
4985 | error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, | |
4986 | DMU_POOL_ZPOOL_CHECKPOINT, sizeof (uint64_t), | |
4987 | sizeof (uberblock_t) / sizeof (uint64_t), &checkpoint); | |
4988 | ||
4989 | if (error == ENOENT) | |
4990 | return (0); | |
4991 | ||
4992 | if (error != 0) | |
4993 | return (error); | |
4994 | ||
4995 | ASSERT3U(checkpoint.ub_txg, !=, 0); | |
4996 | ASSERT3U(checkpoint.ub_checkpoint_txg, !=, 0); | |
4997 | ASSERT3U(checkpoint.ub_timestamp, !=, 0); | |
4998 | spa->spa_checkpoint_txg = checkpoint.ub_txg; | |
4999 | spa->spa_checkpoint_info.sci_timestamp = checkpoint.ub_timestamp; | |
5000 | ||
5001 | return (0); | |
5002 | } | |
5003 | ||
5004 | static int | |
5005 | spa_ld_mos_init(spa_t *spa, spa_import_type_t type) | |
9eb7b46e PZ |
5006 | { |
5007 | int error = 0; | |
9eb7b46e | 5008 | |
4a0ee12a | 5009 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); |
6cb8e530 | 5010 | ASSERT(spa->spa_config_source != SPA_CONFIG_SRC_NONE); |
4a0ee12a | 5011 | |
9eb7b46e | 5012 | /* |
6cb8e530 PZ |
5013 | * Never trust the config that is provided unless we are assembling |
5014 | * a pool following a split. | |
5015 | * This means don't trust blkptrs and the vdev tree in general. This | |
5016 | * also effectively puts the spa in read-only mode since | |
5017 | * spa_writeable() checks for spa_trust_config to be true. | |
5018 | * We will later load a trusted config from the MOS. | |
9eb7b46e | 5019 | */ |
6cb8e530 PZ |
5020 | if (type != SPA_IMPORT_ASSEMBLE) |
5021 | spa->spa_trust_config = B_FALSE; | |
5022 | ||
9eb7b46e PZ |
5023 | /* |
5024 | * Parse the config provided to create a vdev tree. | |
5025 | */ | |
6cb8e530 | 5026 | error = spa_ld_parse_config(spa, type); |
9eb7b46e PZ |
5027 | if (error != 0) |
5028 | return (error); | |
5029 | ||
ca95f70d OF |
5030 | spa_import_progress_add(spa); |
5031 | ||
9eb7b46e PZ |
5032 | /* |
5033 | * Now that we have the vdev tree, try to open each vdev. This involves | |
5034 | * opening the underlying physical device, retrieving its geometry and | |
5035 | * probing the vdev with a dummy I/O. The state of each vdev will be set | |
5036 | * based on the success of those operations. After this we'll be ready | |
5037 | * to read from the vdevs. | |
5038 | */ | |
5039 | error = spa_ld_open_vdevs(spa); | |
5040 | if (error != 0) | |
5041 | return (error); | |
5042 | ||
5043 | /* | |
5044 | * Read the label of each vdev and make sure that the GUIDs stored | |
5045 | * there match the GUIDs in the config provided. | |
6cb8e530 PZ |
5046 | * If we're assembling a new pool that's been split off from an |
5047 | * existing pool, the labels haven't yet been updated so we skip | |
5048 | * validation for now. | |
9eb7b46e | 5049 | */ |
6cb8e530 PZ |
5050 | if (type != SPA_IMPORT_ASSEMBLE) { |
5051 | error = spa_ld_validate_vdevs(spa); | |
5052 | if (error != 0) | |
5053 | return (error); | |
5054 | } | |
9eb7b46e PZ |
5055 | |
5056 | /* | |
d2734cce SD |
5057 | * Read all vdev labels to find the best uberblock (i.e. latest, |
5058 | * unless spa_load_max_txg is set) and store it in spa_uberblock. We | |
5059 | * get the list of features required to read blkptrs in the MOS from | |
5060 | * the vdev label with the best uberblock and verify that our version | |
5061 | * of zfs supports them all. | |
9eb7b46e | 5062 | */ |
6cb8e530 | 5063 | error = spa_ld_select_uberblock(spa, type); |
9eb7b46e PZ |
5064 | if (error != 0) |
5065 | return (error); | |
5066 | ||
5067 | /* | |
5068 | * Pass that uberblock to the dsl_pool layer which will open the root | |
5069 | * blkptr. This blkptr points to the latest version of the MOS and will | |
5070 | * allow us to read its contents. | |
5071 | */ | |
5072 | error = spa_ld_open_rootbp(spa); | |
5073 | if (error != 0) | |
5074 | return (error); | |
5075 | ||
d2734cce SD |
5076 | return (0); |
5077 | } | |
5078 | ||
5079 | static int | |
5080 | spa_ld_checkpoint_rewind(spa_t *spa) | |
5081 | { | |
5082 | uberblock_t checkpoint; | |
5083 | int error = 0; | |
5084 | ||
5085 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); | |
5086 | ASSERT(spa->spa_import_flags & ZFS_IMPORT_CHECKPOINT); | |
5087 | ||
5088 | error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, | |
5089 | DMU_POOL_ZPOOL_CHECKPOINT, sizeof (uint64_t), | |
5090 | sizeof (uberblock_t) / sizeof (uint64_t), &checkpoint); | |
5091 | ||
5092 | if (error != 0) { | |
5093 | spa_load_failed(spa, "unable to retrieve checkpointed " | |
5094 | "uberblock from the MOS config [error=%d]", error); | |
5095 | ||
5096 | if (error == ENOENT) | |
5097 | error = ZFS_ERR_NO_CHECKPOINT; | |
5098 | ||
5099 | return (error); | |
5100 | } | |
5101 | ||
5102 | ASSERT3U(checkpoint.ub_txg, <, spa->spa_uberblock.ub_txg); | |
5103 | ASSERT3U(checkpoint.ub_txg, ==, checkpoint.ub_checkpoint_txg); | |
5104 | ||
5105 | /* | |
5106 | * We need to update the txg and timestamp of the checkpointed | |
5107 | * uberblock to be higher than the latest one. This ensures that | |
5108 | * the checkpointed uberblock is selected if we were to close and | |
5109 | * reopen the pool right after we've written it in the vdev labels. | |
5110 | * (also see block comment in vdev_uberblock_compare) | |
5111 | */ | |
5112 | checkpoint.ub_txg = spa->spa_uberblock.ub_txg + 1; | |
5113 | checkpoint.ub_timestamp = gethrestime_sec(); | |
5114 | ||
5115 | /* | |
5116 | * Set current uberblock to be the checkpointed uberblock. | |
5117 | */ | |
5118 | spa->spa_uberblock = checkpoint; | |
5119 | ||
5120 | /* | |
5121 | * If we are doing a normal rewind, then the pool is open for | |
5122 | * writing and we sync the "updated" checkpointed uberblock to | |
5123 | * disk. Once this is done, we've basically rewound the whole | |
5124 | * pool and there is no way back. | |
5125 | * | |
5126 | * There are cases when we don't want to attempt and sync the | |
5127 | * checkpointed uberblock to disk because we are opening a | |
5128 | * pool as read-only. Specifically, verifying the checkpointed | |
5129 | * state with zdb, and importing the checkpointed state to get | |
5130 | * a "preview" of its content. | |
5131 | */ | |
5132 | if (spa_writeable(spa)) { | |
5133 | vdev_t *rvd = spa->spa_root_vdev; | |
5134 | ||
5135 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); | |
5136 | vdev_t *svd[SPA_SYNC_MIN_VDEVS] = { NULL }; | |
5137 | int svdcount = 0; | |
5138 | int children = rvd->vdev_children; | |
29274c9f | 5139 | int c0 = random_in_range(children); |
d2734cce SD |
5140 | |
5141 | for (int c = 0; c < children; c++) { | |
5142 | vdev_t *vd = rvd->vdev_child[(c0 + c) % children]; | |
5143 | ||
5144 | /* Stop when revisiting the first vdev */ | |
5145 | if (c > 0 && svd[0] == vd) | |
5146 | break; | |
5147 | ||
5148 | if (vd->vdev_ms_array == 0 || vd->vdev_islog || | |
5149 | !vdev_is_concrete(vd)) | |
5150 | continue; | |
5151 | ||
5152 | svd[svdcount++] = vd; | |
5153 | if (svdcount == SPA_SYNC_MIN_VDEVS) | |
5154 | break; | |
5155 | } | |
5156 | error = vdev_config_sync(svd, svdcount, spa->spa_first_txg); | |
5157 | if (error == 0) | |
5158 | spa->spa_last_synced_guid = rvd->vdev_guid; | |
5159 | spa_config_exit(spa, SCL_ALL, FTAG); | |
5160 | ||
5161 | if (error != 0) { | |
5162 | spa_load_failed(spa, "failed to write checkpointed " | |
5163 | "uberblock to the vdev labels [error=%d]", error); | |
5164 | return (error); | |
5165 | } | |
5166 | } | |
5167 | ||
5168 | return (0); | |
5169 | } | |
5170 | ||
5171 | static int | |
5172 | spa_ld_mos_with_trusted_config(spa_t *spa, spa_import_type_t type, | |
5173 | boolean_t *update_config_cache) | |
5174 | { | |
5175 | int error; | |
5176 | ||
5177 | /* | |
5178 | * Parse the config for pool, open and validate vdevs, | |
5179 | * select an uberblock, and use that uberblock to open | |
5180 | * the MOS. | |
5181 | */ | |
5182 | error = spa_ld_mos_init(spa, type); | |
5183 | if (error != 0) | |
5184 | return (error); | |
5185 | ||
9eb7b46e | 5186 | /* |
6cb8e530 PZ |
5187 | * Retrieve the trusted config stored in the MOS and use it to create |
5188 | * a new, exact version of the vdev tree, then reopen all vdevs. | |
9eb7b46e | 5189 | */ |
d2734cce | 5190 | error = spa_ld_trusted_config(spa, type, B_FALSE); |
6cb8e530 | 5191 | if (error == EAGAIN) { |
d2734cce SD |
5192 | if (update_config_cache != NULL) |
5193 | *update_config_cache = B_TRUE; | |
5194 | ||
6cb8e530 PZ |
5195 | /* |
5196 | * Redo the loading process with the trusted config if it is | |
5197 | * too different from the untrusted config. | |
5198 | */ | |
5199 | spa_ld_prepare_for_reload(spa); | |
d2734cce SD |
5200 | spa_load_note(spa, "RELOADING"); |
5201 | error = spa_ld_mos_init(spa, type); | |
5202 | if (error != 0) | |
5203 | return (error); | |
5204 | ||
5205 | error = spa_ld_trusted_config(spa, type, B_TRUE); | |
5206 | if (error != 0) | |
5207 | return (error); | |
5208 | ||
6cb8e530 | 5209 | } else if (error != 0) { |
9eb7b46e | 5210 | return (error); |
6cb8e530 | 5211 | } |
9eb7b46e | 5212 | |
d2734cce SD |
5213 | return (0); |
5214 | } | |
5215 | ||
5216 | /* | |
5217 | * Load an existing storage pool, using the config provided. This config | |
5218 | * describes which vdevs are part of the pool and is later validated against | |
5219 | * partial configs present in each vdev's label and an entire copy of the | |
5220 | * config stored in the MOS. | |
5221 | */ | |
5222 | static int | |
a926aab9 | 5223 | spa_load_impl(spa_t *spa, spa_import_type_t type, const char **ereport) |
d2734cce SD |
5224 | { |
5225 | int error = 0; | |
5226 | boolean_t missing_feat_write = B_FALSE; | |
5227 | boolean_t checkpoint_rewind = | |
5228 | (spa->spa_import_flags & ZFS_IMPORT_CHECKPOINT); | |
5229 | boolean_t update_config_cache = B_FALSE; | |
5230 | ||
5231 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); | |
5232 | ASSERT(spa->spa_config_source != SPA_CONFIG_SRC_NONE); | |
5233 | ||
5234 | spa_load_note(spa, "LOADING"); | |
5235 | ||
5236 | error = spa_ld_mos_with_trusted_config(spa, type, &update_config_cache); | |
5237 | if (error != 0) | |
5238 | return (error); | |
5239 | ||
5240 | /* | |
5241 | * If we are rewinding to the checkpoint then we need to repeat | |
5242 | * everything we've done so far in this function but this time | |
5243 | * selecting the checkpointed uberblock and using that to open | |
5244 | * the MOS. | |
5245 | */ | |
5246 | if (checkpoint_rewind) { | |
5247 | /* | |
5248 | * If we are rewinding to the checkpoint update config cache | |
5249 | * anyway. | |
5250 | */ | |
5251 | update_config_cache = B_TRUE; | |
5252 | ||
5253 | /* | |
5254 | * Extract the checkpointed uberblock from the current MOS | |
5255 | * and use this as the pool's uberblock from now on. If the | |
5256 | * pool is imported as writeable we also write the checkpoint | |
5257 | * uberblock to the labels, making the rewind permanent. | |
5258 | */ | |
5259 | error = spa_ld_checkpoint_rewind(spa); | |
5260 | if (error != 0) | |
5261 | return (error); | |
5262 | ||
5263 | /* | |
e1cfd73f | 5264 | * Redo the loading process again with the |
d2734cce SD |
5265 | * checkpointed uberblock. |
5266 | */ | |
5267 | spa_ld_prepare_for_reload(spa); | |
5268 | spa_load_note(spa, "LOADING checkpointed uberblock"); | |
5269 | error = spa_ld_mos_with_trusted_config(spa, type, NULL); | |
5270 | if (error != 0) | |
5271 | return (error); | |
5272 | } | |
5273 | ||
5274 | /* | |
5275 | * Retrieve the checkpoint txg if the pool has a checkpoint. | |
5276 | */ | |
687e4d7f | 5277 | spa_import_progress_set_notes(spa, "Loading checkpoint txg"); |
d2734cce SD |
5278 | error = spa_ld_read_checkpoint_txg(spa); |
5279 | if (error != 0) | |
5280 | return (error); | |
5281 | ||
9eb7b46e PZ |
5282 | /* |
5283 | * Retrieve the mapping of indirect vdevs. Those vdevs were removed | |
5284 | * from the pool and their contents were re-mapped to other vdevs. Note | |
5285 | * that everything that we read before this step must have been | |
5286 | * rewritten on concrete vdevs after the last device removal was | |
5287 | * initiated. Otherwise we could be reading from indirect vdevs before | |
5288 | * we have loaded their mappings. | |
5289 | */ | |
687e4d7f | 5290 | spa_import_progress_set_notes(spa, "Loading indirect vdev metadata"); |
9eb7b46e PZ |
5291 | error = spa_ld_open_indirect_vdev_metadata(spa); |
5292 | if (error != 0) | |
5293 | return (error); | |
5294 | ||
5295 | /* | |
5296 | * Retrieve the full list of active features from the MOS and check if | |
5297 | * they are all supported. | |
5298 | */ | |
687e4d7f | 5299 | spa_import_progress_set_notes(spa, "Checking feature flags"); |
4a0ee12a | 5300 | error = spa_ld_check_features(spa, &missing_feat_write); |
9eb7b46e PZ |
5301 | if (error != 0) |
5302 | return (error); | |
5303 | ||
5304 | /* | |
5305 | * Load several special directories from the MOS needed by the dsl_pool | |
5306 | * layer. | |
5307 | */ | |
687e4d7f | 5308 | spa_import_progress_set_notes(spa, "Loading special MOS directories"); |
9eb7b46e PZ |
5309 | error = spa_ld_load_special_directories(spa); |
5310 | if (error != 0) | |
5311 | return (error); | |
5312 | ||
9eb7b46e PZ |
5313 | /* |
5314 | * Retrieve pool properties from the MOS. | |
5315 | */ | |
687e4d7f | 5316 | spa_import_progress_set_notes(spa, "Loading properties"); |
9eb7b46e PZ |
5317 | error = spa_ld_get_props(spa); |
5318 | if (error != 0) | |
5319 | return (error); | |
5320 | ||
5321 | /* | |
5322 | * Retrieve the list of auxiliary devices - cache devices and spares - | |
5323 | * and open them. | |
5324 | */ | |
687e4d7f | 5325 | spa_import_progress_set_notes(spa, "Loading AUX vdevs"); |
9eb7b46e PZ |
5326 | error = spa_ld_open_aux_vdevs(spa, type); |
5327 | if (error != 0) | |
5328 | return (error); | |
5329 | ||
5330 | /* | |
5331 | * Load the metadata for all vdevs. Also check if unopenable devices | |
5332 | * should be autoreplaced. | |
5333 | */ | |
687e4d7f | 5334 | spa_import_progress_set_notes(spa, "Loading vdev metadata"); |
4a0ee12a | 5335 | error = spa_ld_load_vdev_metadata(spa); |
9eb7b46e PZ |
5336 | if (error != 0) |
5337 | return (error); | |
5338 | ||
687e4d7f | 5339 | spa_import_progress_set_notes(spa, "Loading dedup tables"); |
9eb7b46e PZ |
5340 | error = spa_ld_load_dedup_tables(spa); |
5341 | if (error != 0) | |
5342 | return (error); | |
5343 | ||
687e4d7f | 5344 | spa_import_progress_set_notes(spa, "Loading BRT"); |
67a1b037 PJD |
5345 | error = spa_ld_load_brt(spa); |
5346 | if (error != 0) | |
5347 | return (error); | |
5348 | ||
9eb7b46e PZ |
5349 | /* |
5350 | * Verify the logs now to make sure we don't have any unexpected errors | |
5351 | * when we claim log blocks later. | |
5352 | */ | |
687e4d7f | 5353 | spa_import_progress_set_notes(spa, "Verifying Log Devices"); |
9eb7b46e PZ |
5354 | error = spa_ld_verify_logs(spa, type, ereport); |
5355 | if (error != 0) | |
5356 | return (error); | |
5357 | ||
9ae529ec | 5358 | if (missing_feat_write) { |
6cb8e530 | 5359 | ASSERT(spa->spa_load_state == SPA_LOAD_TRYIMPORT); |
9ae529ec CS |
5360 | |
5361 | /* | |
5362 | * At this point, we know that we can open the pool in | |
5363 | * read-only mode but not read-write mode. We now have enough | |
5364 | * information and can return to userland. | |
5365 | */ | |
9eb7b46e PZ |
5366 | return (spa_vdev_err(spa->spa_root_vdev, VDEV_AUX_UNSUP_FEAT, |
5367 | ENOTSUP)); | |
9ae529ec CS |
5368 | } |
5369 | ||
572e2857 | 5370 | /* |
9eb7b46e PZ |
5371 | * Traverse the last txgs to make sure the pool was left off in a safe |
5372 | * state. When performing an extreme rewind, we verify the whole pool, | |
5373 | * which can take a very long time. | |
572e2857 | 5374 | */ |
687e4d7f | 5375 | spa_import_progress_set_notes(spa, "Verifying pool data"); |
4a0ee12a | 5376 | error = spa_ld_verify_pool_data(spa); |
9eb7b46e PZ |
5377 | if (error != 0) |
5378 | return (error); | |
572e2857 | 5379 | |
9eb7b46e PZ |
5380 | /* |
5381 | * Calculate the deflated space for the pool. This must be done before | |
5382 | * we write anything to the pool because we'd need to update the space | |
5383 | * accounting using the deflated sizes. | |
5384 | */ | |
687e4d7f | 5385 | spa_import_progress_set_notes(spa, "Calculating deflated space"); |
9eb7b46e PZ |
5386 | spa_update_dspace(spa); |
5387 | ||
5388 | /* | |
5389 | * We have now retrieved all the information we needed to open the | |
5390 | * pool. If we are importing the pool in read-write mode, a few | |
5391 | * additional steps must be performed to finish the import. | |
5392 | */ | |
687e4d7f | 5393 | spa_import_progress_set_notes(spa, "Starting import"); |
6cb8e530 | 5394 | if (spa_writeable(spa) && (spa->spa_load_state == SPA_LOAD_RECOVER || |
428870ff | 5395 | spa->spa_load_max_txg == UINT64_MAX)) { |
6cb8e530 PZ |
5396 | uint64_t config_cache_txg = spa->spa_config_txg; |
5397 | ||
5398 | ASSERT(spa->spa_load_state != SPA_LOAD_TRYIMPORT); | |
34dc7c2f | 5399 | |
5caeef02 DB |
5400 | /* |
5401 | * Before we do any zio_write's, complete the raidz expansion | |
5402 | * scratch space copying, if necessary. | |
5403 | */ | |
5404 | if (RRSS_GET_STATE(&spa->spa_uberblock) == RRSS_SCRATCH_VALID) | |
5405 | vdev_raidz_reflow_copy_scratch(spa); | |
5406 | ||
d2734cce SD |
5407 | /* |
5408 | * In case of a checkpoint rewind, log the original txg | |
5409 | * of the checkpointed uberblock. | |
5410 | */ | |
5411 | if (checkpoint_rewind) { | |
5412 | spa_history_log_internal(spa, "checkpoint rewind", | |
5413 | NULL, "rewound state to txg=%llu", | |
5414 | (u_longlong_t)spa->spa_uberblock.ub_checkpoint_txg); | |
5415 | } | |
5416 | ||
687e4d7f | 5417 | spa_import_progress_set_notes(spa, "Claiming ZIL blocks"); |
34dc7c2f | 5418 | /* |
9eb7b46e | 5419 | * Traverse the ZIL and claim all blocks. |
34dc7c2f | 5420 | */ |
9eb7b46e | 5421 | spa_ld_claim_log_blocks(spa); |
428870ff | 5422 | |
9eb7b46e PZ |
5423 | /* |
5424 | * Kick-off the syncing thread. | |
5425 | */ | |
34dc7c2f BB |
5426 | spa->spa_sync_on = B_TRUE; |
5427 | txg_sync_start(spa->spa_dsl_pool); | |
379ca9cf | 5428 | mmp_thread_start(spa); |
34dc7c2f BB |
5429 | |
5430 | /* | |
428870ff BB |
5431 | * Wait for all claims to sync. We sync up to the highest |
5432 | * claimed log block birth time so that claimed log blocks | |
5433 | * don't appear to be from the future. spa_claim_max_txg | |
9eb7b46e PZ |
5434 | * will have been set for us by ZIL traversal operations |
5435 | * performed above. | |
34dc7c2f | 5436 | */ |
687e4d7f | 5437 | spa_import_progress_set_notes(spa, "Syncing ZIL claims"); |
428870ff | 5438 | txg_wait_synced(spa->spa_dsl_pool, spa->spa_claim_max_txg); |
34dc7c2f BB |
5439 | |
5440 | /* | |
9eb7b46e PZ |
5441 | * Check if we need to request an update of the config. On the |
5442 | * next sync, we would update the config stored in vdev labels | |
5443 | * and the cachefile (by default /etc/zfs/zpool.cache). | |
34dc7c2f | 5444 | */ |
687e4d7f | 5445 | spa_import_progress_set_notes(spa, "Updating configs"); |
6cb8e530 | 5446 | spa_ld_check_for_config_update(spa, config_cache_txg, |
d2734cce | 5447 | update_config_cache); |
fb5f0bc8 BB |
5448 | |
5449 | /* | |
9a49d3f3 BB |
5450 | * Check if a rebuild was in progress and if so resume it. |
5451 | * Then check all DTLs to see if anything needs resilvering. | |
5452 | * The resilver will be deferred if a rebuild was started. | |
fb5f0bc8 | 5453 | */ |
687e4d7f | 5454 | spa_import_progress_set_notes(spa, "Starting resilvers"); |
9a49d3f3 BB |
5455 | if (vdev_rebuild_active(spa->spa_root_vdev)) { |
5456 | vdev_rebuild_restart(spa); | |
5457 | } else if (!dsl_scan_resilvering(spa->spa_dsl_pool) && | |
5458 | vdev_resilver_needed(spa->spa_root_vdev, NULL, NULL)) { | |
fb5f0bc8 | 5459 | spa_async_request(spa, SPA_ASYNC_RESILVER); |
9a49d3f3 | 5460 | } |
428870ff | 5461 | |
6f1ffb06 MA |
5462 | /* |
5463 | * Log the fact that we booted up (so that we can detect if | |
5464 | * we rebooted in the middle of an operation). | |
5465 | */ | |
d5e024cb | 5466 | spa_history_log_version(spa, "open", NULL); |
6f1ffb06 | 5467 | |
687e4d7f DB |
5468 | spa_import_progress_set_notes(spa, |
5469 | "Restarting device removals"); | |
9b2266e3 SD |
5470 | spa_restart_removal(spa); |
5471 | spa_spawn_aux_threads(spa); | |
5472 | ||
428870ff BB |
5473 | /* |
5474 | * Delete any inconsistent datasets. | |
9b2266e3 SD |
5475 | * |
5476 | * Note: | |
5477 | * Since we may be issuing deletes for clones here, | |
5478 | * we make sure to do so after we've spawned all the | |
5479 | * auxiliary threads above (from which the livelist | |
5480 | * deletion zthr is part of). | |
428870ff | 5481 | */ |
687e4d7f DB |
5482 | spa_import_progress_set_notes(spa, |
5483 | "Cleaning up inconsistent objsets"); | |
428870ff BB |
5484 | (void) dmu_objset_find(spa_name(spa), |
5485 | dsl_destroy_inconsistent, NULL, DS_FIND_CHILDREN); | |
5486 | ||
5487 | /* | |
5488 | * Clean up any stale temporary dataset userrefs. | |
5489 | */ | |
687e4d7f DB |
5490 | spa_import_progress_set_notes(spa, |
5491 | "Cleaning up temporary userrefs"); | |
428870ff | 5492 | dsl_pool_clean_tmp_userrefs(spa->spa_dsl_pool); |
a1d477c2 | 5493 | |
619f0976 | 5494 | spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); |
687e4d7f | 5495 | spa_import_progress_set_notes(spa, "Restarting initialize"); |
619f0976 | 5496 | vdev_initialize_restart(spa->spa_root_vdev); |
687e4d7f | 5497 | spa_import_progress_set_notes(spa, "Restarting TRIM"); |
1b939560 BB |
5498 | vdev_trim_restart(spa->spa_root_vdev); |
5499 | vdev_autotrim_restart(spa); | |
619f0976 | 5500 | spa_config_exit(spa, SCL_CONFIG, FTAG); |
687e4d7f | 5501 | spa_import_progress_set_notes(spa, "Finished importing"); |
34dc7c2f BB |
5502 | } |
5503 | ||
ca95f70d | 5504 | spa_import_progress_remove(spa_guid(spa)); |
77f6826b GA |
5505 | spa_async_request(spa, SPA_ASYNC_L2CACHE_REBUILD); |
5506 | ||
4a0ee12a PZ |
5507 | spa_load_note(spa, "LOADED"); |
5508 | ||
428870ff BB |
5509 | return (0); |
5510 | } | |
34dc7c2f | 5511 | |
428870ff | 5512 | static int |
6cb8e530 | 5513 | spa_load_retry(spa_t *spa, spa_load_state_t state) |
428870ff | 5514 | { |
da92d5cb | 5515 | spa_mode_t mode = spa->spa_mode; |
572e2857 | 5516 | |
428870ff BB |
5517 | spa_unload(spa); |
5518 | spa_deactivate(spa); | |
5519 | ||
dea377c0 | 5520 | spa->spa_load_max_txg = spa->spa_uberblock.ub_txg - 1; |
428870ff | 5521 | |
572e2857 | 5522 | spa_activate(spa, mode); |
428870ff BB |
5523 | spa_async_suspend(spa); |
5524 | ||
4a0ee12a PZ |
5525 | spa_load_note(spa, "spa_load_retry: rewind, max txg: %llu", |
5526 | (u_longlong_t)spa->spa_load_max_txg); | |
5527 | ||
6cb8e530 | 5528 | return (spa_load(spa, state, SPA_IMPORT_EXISTING)); |
428870ff BB |
5529 | } |
5530 | ||
9ae529ec CS |
5531 | /* |
5532 | * If spa_load() fails this function will try loading prior txg's. If | |
5533 | * 'state' is SPA_LOAD_RECOVER and one of these loads succeeds the pool | |
5534 | * will be rewound to that txg. If 'state' is not SPA_LOAD_RECOVER this | |
5535 | * function will not rewind the pool and will return the same error as | |
5536 | * spa_load(). | |
5537 | */ | |
428870ff | 5538 | static int |
6cb8e530 PZ |
5539 | spa_load_best(spa_t *spa, spa_load_state_t state, uint64_t max_request, |
5540 | int rewind_flags) | |
428870ff | 5541 | { |
9ae529ec | 5542 | nvlist_t *loadinfo = NULL; |
428870ff BB |
5543 | nvlist_t *config = NULL; |
5544 | int load_error, rewind_error; | |
5545 | uint64_t safe_rewind_txg; | |
5546 | uint64_t min_txg; | |
5547 | ||
5548 | if (spa->spa_load_txg && state == SPA_LOAD_RECOVER) { | |
5549 | spa->spa_load_max_txg = spa->spa_load_txg; | |
5550 | spa_set_log_state(spa, SPA_LOG_CLEAR); | |
5551 | } else { | |
5552 | spa->spa_load_max_txg = max_request; | |
dea377c0 MA |
5553 | if (max_request != UINT64_MAX) |
5554 | spa->spa_extreme_rewind = B_TRUE; | |
428870ff BB |
5555 | } |
5556 | ||
6cb8e530 | 5557 | load_error = rewind_error = spa_load(spa, state, SPA_IMPORT_EXISTING); |
428870ff BB |
5558 | if (load_error == 0) |
5559 | return (0); | |
d2734cce SD |
5560 | if (load_error == ZFS_ERR_NO_CHECKPOINT) { |
5561 | /* | |
5562 | * When attempting checkpoint-rewind on a pool with no | |
5563 | * checkpoint, we should not attempt to load uberblocks | |
5564 | * from previous txgs when spa_load fails. | |
5565 | */ | |
5566 | ASSERT(spa->spa_import_flags & ZFS_IMPORT_CHECKPOINT); | |
ca95f70d | 5567 | spa_import_progress_remove(spa_guid(spa)); |
d2734cce SD |
5568 | return (load_error); |
5569 | } | |
428870ff BB |
5570 | |
5571 | if (spa->spa_root_vdev != NULL) | |
5572 | config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); | |
5573 | ||
5574 | spa->spa_last_ubsync_txg = spa->spa_uberblock.ub_txg; | |
5575 | spa->spa_last_ubsync_txg_ts = spa->spa_uberblock.ub_timestamp; | |
5576 | ||
5577 | if (rewind_flags & ZPOOL_NEVER_REWIND) { | |
5578 | nvlist_free(config); | |
ca95f70d | 5579 | spa_import_progress_remove(spa_guid(spa)); |
428870ff BB |
5580 | return (load_error); |
5581 | } | |
5582 | ||
9ae529ec CS |
5583 | if (state == SPA_LOAD_RECOVER) { |
5584 | /* Price of rolling back is discarding txgs, including log */ | |
428870ff | 5585 | spa_set_log_state(spa, SPA_LOG_CLEAR); |
9ae529ec CS |
5586 | } else { |
5587 | /* | |
5588 | * If we aren't rolling back save the load info from our first | |
5589 | * import attempt so that we can restore it after attempting | |
5590 | * to rewind. | |
5591 | */ | |
5592 | loadinfo = spa->spa_load_info; | |
5593 | spa->spa_load_info = fnvlist_alloc(); | |
5594 | } | |
428870ff BB |
5595 | |
5596 | spa->spa_load_max_txg = spa->spa_last_ubsync_txg; | |
5597 | safe_rewind_txg = spa->spa_last_ubsync_txg - TXG_DEFER_SIZE; | |
5598 | min_txg = (rewind_flags & ZPOOL_EXTREME_REWIND) ? | |
5599 | TXG_INITIAL : safe_rewind_txg; | |
5600 | ||
5601 | /* | |
5602 | * Continue as long as we're finding errors, we're still within | |
5603 | * the acceptable rewind range, and we're still finding uberblocks | |
5604 | */ | |
5605 | while (rewind_error && spa->spa_uberblock.ub_txg >= min_txg && | |
5606 | spa->spa_uberblock.ub_txg <= spa->spa_load_max_txg) { | |
5607 | if (spa->spa_load_max_txg < safe_rewind_txg) | |
5608 | spa->spa_extreme_rewind = B_TRUE; | |
6cb8e530 | 5609 | rewind_error = spa_load_retry(spa, state); |
428870ff BB |
5610 | } |
5611 | ||
428870ff BB |
5612 | spa->spa_extreme_rewind = B_FALSE; |
5613 | spa->spa_load_max_txg = UINT64_MAX; | |
5614 | ||
5615 | if (config && (rewind_error || state != SPA_LOAD_RECOVER)) | |
5616 | spa_config_set(spa, config); | |
ee6370a7 | 5617 | else |
5618 | nvlist_free(config); | |
428870ff | 5619 | |
9ae529ec CS |
5620 | if (state == SPA_LOAD_RECOVER) { |
5621 | ASSERT3P(loadinfo, ==, NULL); | |
ca95f70d | 5622 | spa_import_progress_remove(spa_guid(spa)); |
9ae529ec CS |
5623 | return (rewind_error); |
5624 | } else { | |
5625 | /* Store the rewind info as part of the initial load info */ | |
5626 | fnvlist_add_nvlist(loadinfo, ZPOOL_CONFIG_REWIND_INFO, | |
5627 | spa->spa_load_info); | |
5628 | ||
5629 | /* Restore the initial load info */ | |
5630 | fnvlist_free(spa->spa_load_info); | |
5631 | spa->spa_load_info = loadinfo; | |
5632 | ||
ca95f70d | 5633 | spa_import_progress_remove(spa_guid(spa)); |
9ae529ec CS |
5634 | return (load_error); |
5635 | } | |
34dc7c2f BB |
5636 | } |
5637 | ||
5638 | /* | |
5639 | * Pool Open/Import | |
5640 | * | |
5641 | * The import case is identical to an open except that the configuration is sent | |
5642 | * down from userland, instead of grabbed from the configuration cache. For the | |
5643 | * case of an open, the pool configuration will exist in the | |
5644 | * POOL_STATE_UNINITIALIZED state. | |
5645 | * | |
5646 | * The stats information (gen/count/ustats) is used to gather vdev statistics at | |
5647 | * the same time open the pool, without having to keep around the spa_t in some | |
5648 | * ambiguous state. | |
5649 | */ | |
5650 | static int | |
a926aab9 AZ |
5651 | spa_open_common(const char *pool, spa_t **spapp, const void *tag, |
5652 | nvlist_t *nvpolicy, nvlist_t **config) | |
34dc7c2f BB |
5653 | { |
5654 | spa_t *spa; | |
572e2857 | 5655 | spa_load_state_t state = SPA_LOAD_OPEN; |
34dc7c2f | 5656 | int error; |
34dc7c2f | 5657 | int locked = B_FALSE; |
526af785 | 5658 | int firstopen = B_FALSE; |
34dc7c2f BB |
5659 | |
5660 | *spapp = NULL; | |
5661 | ||
5662 | /* | |
5663 | * As disgusting as this is, we need to support recursive calls to this | |
5664 | * function because dsl_dir_open() is called during spa_load(), and ends | |
5665 | * up calling spa_open() again. The real fix is to figure out how to | |
5666 | * avoid dsl_dir_open() calling this in the first place. | |
5667 | */ | |
c25b8f99 | 5668 | if (MUTEX_NOT_HELD(&spa_namespace_lock)) { |
34dc7c2f BB |
5669 | mutex_enter(&spa_namespace_lock); |
5670 | locked = B_TRUE; | |
5671 | } | |
5672 | ||
5673 | if ((spa = spa_lookup(pool)) == NULL) { | |
5674 | if (locked) | |
5675 | mutex_exit(&spa_namespace_lock); | |
2e528b49 | 5676 | return (SET_ERROR(ENOENT)); |
34dc7c2f | 5677 | } |
428870ff | 5678 | |
34dc7c2f | 5679 | if (spa->spa_state == POOL_STATE_UNINITIALIZED) { |
8a393be3 | 5680 | zpool_load_policy_t policy; |
428870ff | 5681 | |
526af785 PJD |
5682 | firstopen = B_TRUE; |
5683 | ||
8a393be3 | 5684 | zpool_get_load_policy(nvpolicy ? nvpolicy : spa->spa_config, |
428870ff | 5685 | &policy); |
8a393be3 | 5686 | if (policy.zlp_rewind & ZPOOL_DO_REWIND) |
428870ff | 5687 | state = SPA_LOAD_RECOVER; |
34dc7c2f | 5688 | |
fb5f0bc8 | 5689 | spa_activate(spa, spa_mode_global); |
34dc7c2f | 5690 | |
428870ff BB |
5691 | if (state != SPA_LOAD_RECOVER) |
5692 | spa->spa_last_ubsync_txg = spa->spa_load_txg = 0; | |
6cb8e530 | 5693 | spa->spa_config_source = SPA_CONFIG_SRC_CACHEFILE; |
428870ff | 5694 | |
4a0ee12a | 5695 | zfs_dbgmsg("spa_open_common: opening %s", pool); |
8a393be3 PZ |
5696 | error = spa_load_best(spa, state, policy.zlp_txg, |
5697 | policy.zlp_rewind); | |
34dc7c2f BB |
5698 | |
5699 | if (error == EBADF) { | |
5700 | /* | |
5701 | * If vdev_validate() returns failure (indicated by | |
5702 | * EBADF), it indicates that one of the vdevs indicates | |
5703 | * that the pool has been exported or destroyed. If | |
5704 | * this is the case, the config cache is out of sync and | |
5705 | * we should remove the pool from the namespace. | |
5706 | */ | |
34dc7c2f BB |
5707 | spa_unload(spa); |
5708 | spa_deactivate(spa); | |
55c12724 | 5709 | spa_write_cachefile(spa, B_TRUE, B_TRUE, B_FALSE); |
34dc7c2f | 5710 | spa_remove(spa); |
34dc7c2f BB |
5711 | if (locked) |
5712 | mutex_exit(&spa_namespace_lock); | |
2e528b49 | 5713 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
5714 | } |
5715 | ||
5716 | if (error) { | |
5717 | /* | |
5718 | * We can't open the pool, but we still have useful | |
5719 | * information: the state of each vdev after the | |
5720 | * attempted vdev_open(). Return this to the user. | |
5721 | */ | |
572e2857 | 5722 | if (config != NULL && spa->spa_config) { |
65ad5d11 AJ |
5723 | *config = fnvlist_dup(spa->spa_config); |
5724 | fnvlist_add_nvlist(*config, | |
572e2857 | 5725 | ZPOOL_CONFIG_LOAD_INFO, |
65ad5d11 | 5726 | spa->spa_load_info); |
572e2857 | 5727 | } |
34dc7c2f BB |
5728 | spa_unload(spa); |
5729 | spa_deactivate(spa); | |
428870ff | 5730 | spa->spa_last_open_failed = error; |
34dc7c2f BB |
5731 | if (locked) |
5732 | mutex_exit(&spa_namespace_lock); | |
5733 | *spapp = NULL; | |
5734 | return (error); | |
34dc7c2f | 5735 | } |
34dc7c2f BB |
5736 | } |
5737 | ||
5738 | spa_open_ref(spa, tag); | |
5739 | ||
b128c09f | 5740 | if (config != NULL) |
34dc7c2f | 5741 | *config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); |
34dc7c2f | 5742 | |
572e2857 BB |
5743 | /* |
5744 | * If we've recovered the pool, pass back any information we | |
5745 | * gathered while doing the load. | |
5746 | */ | |
1bd02680 | 5747 | if (state == SPA_LOAD_RECOVER && config != NULL) { |
65ad5d11 AJ |
5748 | fnvlist_add_nvlist(*config, ZPOOL_CONFIG_LOAD_INFO, |
5749 | spa->spa_load_info); | |
572e2857 BB |
5750 | } |
5751 | ||
428870ff BB |
5752 | if (locked) { |
5753 | spa->spa_last_open_failed = 0; | |
5754 | spa->spa_last_ubsync_txg = 0; | |
5755 | spa->spa_load_txg = 0; | |
5756 | mutex_exit(&spa_namespace_lock); | |
5757 | } | |
5758 | ||
526af785 | 5759 | if (firstopen) |
ec213971 | 5760 | zvol_create_minors_recursive(spa_name(spa)); |
526af785 | 5761 | |
428870ff BB |
5762 | *spapp = spa; |
5763 | ||
34dc7c2f BB |
5764 | return (0); |
5765 | } | |
5766 | ||
428870ff | 5767 | int |
a926aab9 AZ |
5768 | spa_open_rewind(const char *name, spa_t **spapp, const void *tag, |
5769 | nvlist_t *policy, nvlist_t **config) | |
428870ff BB |
5770 | { |
5771 | return (spa_open_common(name, spapp, tag, policy, config)); | |
5772 | } | |
5773 | ||
34dc7c2f | 5774 | int |
a926aab9 | 5775 | spa_open(const char *name, spa_t **spapp, const void *tag) |
34dc7c2f | 5776 | { |
428870ff | 5777 | return (spa_open_common(name, spapp, tag, NULL, NULL)); |
34dc7c2f BB |
5778 | } |
5779 | ||
5780 | /* | |
5781 | * Lookup the given spa_t, incrementing the inject count in the process, | |
5782 | * preventing it from being exported or destroyed. | |
5783 | */ | |
5784 | spa_t * | |
5785 | spa_inject_addref(char *name) | |
5786 | { | |
5787 | spa_t *spa; | |
5788 | ||
5789 | mutex_enter(&spa_namespace_lock); | |
5790 | if ((spa = spa_lookup(name)) == NULL) { | |
5791 | mutex_exit(&spa_namespace_lock); | |
5792 | return (NULL); | |
5793 | } | |
5794 | spa->spa_inject_ref++; | |
5795 | mutex_exit(&spa_namespace_lock); | |
5796 | ||
5797 | return (spa); | |
5798 | } | |
5799 | ||
5800 | void | |
5801 | spa_inject_delref(spa_t *spa) | |
5802 | { | |
5803 | mutex_enter(&spa_namespace_lock); | |
5804 | spa->spa_inject_ref--; | |
5805 | mutex_exit(&spa_namespace_lock); | |
5806 | } | |
5807 | ||
5808 | /* | |
5809 | * Add spares device information to the nvlist. | |
5810 | */ | |
5811 | static void | |
5812 | spa_add_spares(spa_t *spa, nvlist_t *config) | |
5813 | { | |
5814 | nvlist_t **spares; | |
5815 | uint_t i, nspares; | |
5816 | nvlist_t *nvroot; | |
5817 | uint64_t guid; | |
5818 | vdev_stat_t *vs; | |
5819 | uint_t vsc; | |
5820 | uint64_t pool; | |
5821 | ||
9babb374 BB |
5822 | ASSERT(spa_config_held(spa, SCL_CONFIG, RW_READER)); |
5823 | ||
34dc7c2f BB |
5824 | if (spa->spa_spares.sav_count == 0) |
5825 | return; | |
5826 | ||
65ad5d11 AJ |
5827 | nvroot = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE); |
5828 | VERIFY0(nvlist_lookup_nvlist_array(spa->spa_spares.sav_config, | |
5829 | ZPOOL_CONFIG_SPARES, &spares, &nspares)); | |
34dc7c2f | 5830 | if (nspares != 0) { |
795075e6 PD |
5831 | fnvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, |
5832 | (const nvlist_t * const *)spares, nspares); | |
65ad5d11 AJ |
5833 | VERIFY0(nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, |
5834 | &spares, &nspares)); | |
34dc7c2f BB |
5835 | |
5836 | /* | |
5837 | * Go through and find any spares which have since been | |
5838 | * repurposed as an active spare. If this is the case, update | |
5839 | * their status appropriately. | |
5840 | */ | |
5841 | for (i = 0; i < nspares; i++) { | |
65ad5d11 AJ |
5842 | guid = fnvlist_lookup_uint64(spares[i], |
5843 | ZPOOL_CONFIG_GUID); | |
a05263b7 AH |
5844 | VERIFY0(nvlist_lookup_uint64_array(spares[i], |
5845 | ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&vs, &vsc)); | |
b128c09f BB |
5846 | if (spa_spare_exists(guid, &pool, NULL) && |
5847 | pool != 0ULL) { | |
34dc7c2f BB |
5848 | vs->vs_state = VDEV_STATE_CANT_OPEN; |
5849 | vs->vs_aux = VDEV_AUX_SPARED; | |
a05263b7 AH |
5850 | } else { |
5851 | vs->vs_state = | |
5852 | spa->spa_spares.sav_vdevs[i]->vdev_state; | |
34dc7c2f BB |
5853 | } |
5854 | } | |
5855 | } | |
5856 | } | |
5857 | ||
5858 | /* | |
5859 | * Add l2cache device information to the nvlist, including vdev stats. | |
5860 | */ | |
5861 | static void | |
5862 | spa_add_l2cache(spa_t *spa, nvlist_t *config) | |
5863 | { | |
5864 | nvlist_t **l2cache; | |
5865 | uint_t i, j, nl2cache; | |
5866 | nvlist_t *nvroot; | |
5867 | uint64_t guid; | |
5868 | vdev_t *vd; | |
5869 | vdev_stat_t *vs; | |
5870 | uint_t vsc; | |
5871 | ||
9babb374 BB |
5872 | ASSERT(spa_config_held(spa, SCL_CONFIG, RW_READER)); |
5873 | ||
34dc7c2f BB |
5874 | if (spa->spa_l2cache.sav_count == 0) |
5875 | return; | |
5876 | ||
65ad5d11 AJ |
5877 | nvroot = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE); |
5878 | VERIFY0(nvlist_lookup_nvlist_array(spa->spa_l2cache.sav_config, | |
5879 | ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache)); | |
34dc7c2f | 5880 | if (nl2cache != 0) { |
795075e6 PD |
5881 | fnvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, |
5882 | (const nvlist_t * const *)l2cache, nl2cache); | |
65ad5d11 AJ |
5883 | VERIFY0(nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, |
5884 | &l2cache, &nl2cache)); | |
34dc7c2f BB |
5885 | |
5886 | /* | |
5887 | * Update level 2 cache device stats. | |
5888 | */ | |
5889 | ||
5890 | for (i = 0; i < nl2cache; i++) { | |
65ad5d11 AJ |
5891 | guid = fnvlist_lookup_uint64(l2cache[i], |
5892 | ZPOOL_CONFIG_GUID); | |
34dc7c2f BB |
5893 | |
5894 | vd = NULL; | |
5895 | for (j = 0; j < spa->spa_l2cache.sav_count; j++) { | |
5896 | if (guid == | |
5897 | spa->spa_l2cache.sav_vdevs[j]->vdev_guid) { | |
5898 | vd = spa->spa_l2cache.sav_vdevs[j]; | |
5899 | break; | |
5900 | } | |
5901 | } | |
5902 | ASSERT(vd != NULL); | |
5903 | ||
65ad5d11 AJ |
5904 | VERIFY0(nvlist_lookup_uint64_array(l2cache[i], |
5905 | ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&vs, &vsc)); | |
34dc7c2f | 5906 | vdev_get_stats(vd, vs); |
193a37cb TH |
5907 | vdev_config_generate_stats(vd, l2cache[i]); |
5908 | ||
34dc7c2f BB |
5909 | } |
5910 | } | |
34dc7c2f BB |
5911 | } |
5912 | ||
9ae529ec | 5913 | static void |
417104bd | 5914 | spa_feature_stats_from_disk(spa_t *spa, nvlist_t *features) |
9ae529ec | 5915 | { |
9ae529ec CS |
5916 | zap_cursor_t zc; |
5917 | zap_attribute_t za; | |
5918 | ||
9ae529ec CS |
5919 | if (spa->spa_feat_for_read_obj != 0) { |
5920 | for (zap_cursor_init(&zc, spa->spa_meta_objset, | |
5921 | spa->spa_feat_for_read_obj); | |
5922 | zap_cursor_retrieve(&zc, &za) == 0; | |
5923 | zap_cursor_advance(&zc)) { | |
5924 | ASSERT(za.za_integer_length == sizeof (uint64_t) && | |
5925 | za.za_num_integers == 1); | |
417104bd | 5926 | VERIFY0(nvlist_add_uint64(features, za.za_name, |
9ae529ec CS |
5927 | za.za_first_integer)); |
5928 | } | |
5929 | zap_cursor_fini(&zc); | |
5930 | } | |
5931 | ||
5932 | if (spa->spa_feat_for_write_obj != 0) { | |
5933 | for (zap_cursor_init(&zc, spa->spa_meta_objset, | |
5934 | spa->spa_feat_for_write_obj); | |
5935 | zap_cursor_retrieve(&zc, &za) == 0; | |
5936 | zap_cursor_advance(&zc)) { | |
5937 | ASSERT(za.za_integer_length == sizeof (uint64_t) && | |
5938 | za.za_num_integers == 1); | |
417104bd | 5939 | VERIFY0(nvlist_add_uint64(features, za.za_name, |
9ae529ec CS |
5940 | za.za_first_integer)); |
5941 | } | |
5942 | zap_cursor_fini(&zc); | |
5943 | } | |
417104bd NB |
5944 | } |
5945 | ||
5946 | static void | |
5947 | spa_feature_stats_from_cache(spa_t *spa, nvlist_t *features) | |
5948 | { | |
5949 | int i; | |
5950 | ||
5951 | for (i = 0; i < SPA_FEATURES; i++) { | |
5952 | zfeature_info_t feature = spa_feature_table[i]; | |
5953 | uint64_t refcount; | |
5954 | ||
5955 | if (feature_get_refcount(spa, &feature, &refcount) != 0) | |
5956 | continue; | |
5957 | ||
5958 | VERIFY0(nvlist_add_uint64(features, feature.fi_guid, refcount)); | |
5959 | } | |
5960 | } | |
5961 | ||
5962 | /* | |
5963 | * Store a list of pool features and their reference counts in the | |
5964 | * config. | |
5965 | * | |
5966 | * The first time this is called on a spa, allocate a new nvlist, fetch | |
5967 | * the pool features and reference counts from disk, then save the list | |
5968 | * in the spa. In subsequent calls on the same spa use the saved nvlist | |
5969 | * and refresh its values from the cached reference counts. This | |
5970 | * ensures we don't block here on I/O on a suspended pool so 'zpool | |
5971 | * clear' can resume the pool. | |
5972 | */ | |
5973 | static void | |
5974 | spa_add_feature_stats(spa_t *spa, nvlist_t *config) | |
5975 | { | |
4eb30c68 | 5976 | nvlist_t *features; |
417104bd NB |
5977 | |
5978 | ASSERT(spa_config_held(spa, SCL_CONFIG, RW_READER)); | |
5979 | ||
4eb30c68 NB |
5980 | mutex_enter(&spa->spa_feat_stats_lock); |
5981 | features = spa->spa_feat_stats; | |
5982 | ||
417104bd NB |
5983 | if (features != NULL) { |
5984 | spa_feature_stats_from_cache(spa, features); | |
5985 | } else { | |
5986 | VERIFY0(nvlist_alloc(&features, NV_UNIQUE_NAME, KM_SLEEP)); | |
5987 | spa->spa_feat_stats = features; | |
5988 | spa_feature_stats_from_disk(spa, features); | |
5989 | } | |
9ae529ec | 5990 | |
417104bd NB |
5991 | VERIFY0(nvlist_add_nvlist(config, ZPOOL_CONFIG_FEATURE_STATS, |
5992 | features)); | |
4eb30c68 NB |
5993 | |
5994 | mutex_exit(&spa->spa_feat_stats_lock); | |
9ae529ec CS |
5995 | } |
5996 | ||
34dc7c2f | 5997 | int |
9ae529ec CS |
5998 | spa_get_stats(const char *name, nvlist_t **config, |
5999 | char *altroot, size_t buflen) | |
34dc7c2f BB |
6000 | { |
6001 | int error; | |
6002 | spa_t *spa; | |
6003 | ||
6004 | *config = NULL; | |
428870ff | 6005 | error = spa_open_common(name, &spa, FTAG, NULL, config); |
34dc7c2f | 6006 | |
9babb374 BB |
6007 | if (spa != NULL) { |
6008 | /* | |
6009 | * This still leaves a window of inconsistency where the spares | |
6010 | * or l2cache devices could change and the config would be | |
6011 | * self-inconsistent. | |
6012 | */ | |
6013 | spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); | |
34dc7c2f | 6014 | |
9babb374 | 6015 | if (*config != NULL) { |
572e2857 BB |
6016 | uint64_t loadtimes[2]; |
6017 | ||
6018 | loadtimes[0] = spa->spa_loaded_ts.tv_sec; | |
6019 | loadtimes[1] = spa->spa_loaded_ts.tv_nsec; | |
65ad5d11 AJ |
6020 | fnvlist_add_uint64_array(*config, |
6021 | ZPOOL_CONFIG_LOADED_TIME, loadtimes, 2); | |
572e2857 | 6022 | |
65ad5d11 | 6023 | fnvlist_add_uint64(*config, |
9babb374 | 6024 | ZPOOL_CONFIG_ERRCOUNT, |
018f2604 | 6025 | spa_approx_errlog_size(spa)); |
9babb374 | 6026 | |
cec3a0a1 | 6027 | if (spa_suspended(spa)) { |
65ad5d11 | 6028 | fnvlist_add_uint64(*config, |
9babb374 | 6029 | ZPOOL_CONFIG_SUSPENDED, |
65ad5d11 AJ |
6030 | spa->spa_failmode); |
6031 | fnvlist_add_uint64(*config, | |
cec3a0a1 | 6032 | ZPOOL_CONFIG_SUSPENDED_REASON, |
65ad5d11 | 6033 | spa->spa_suspended); |
cec3a0a1 | 6034 | } |
b128c09f | 6035 | |
9babb374 BB |
6036 | spa_add_spares(spa, *config); |
6037 | spa_add_l2cache(spa, *config); | |
9ae529ec | 6038 | spa_add_feature_stats(spa, *config); |
9babb374 | 6039 | } |
34dc7c2f BB |
6040 | } |
6041 | ||
6042 | /* | |
6043 | * We want to get the alternate root even for faulted pools, so we cheat | |
6044 | * and call spa_lookup() directly. | |
6045 | */ | |
6046 | if (altroot) { | |
6047 | if (spa == NULL) { | |
6048 | mutex_enter(&spa_namespace_lock); | |
6049 | spa = spa_lookup(name); | |
6050 | if (spa) | |
6051 | spa_altroot(spa, altroot, buflen); | |
6052 | else | |
6053 | altroot[0] = '\0'; | |
6054 | spa = NULL; | |
6055 | mutex_exit(&spa_namespace_lock); | |
6056 | } else { | |
6057 | spa_altroot(spa, altroot, buflen); | |
6058 | } | |
6059 | } | |
6060 | ||
9babb374 BB |
6061 | if (spa != NULL) { |
6062 | spa_config_exit(spa, SCL_CONFIG, FTAG); | |
34dc7c2f | 6063 | spa_close(spa, FTAG); |
9babb374 | 6064 | } |
34dc7c2f BB |
6065 | |
6066 | return (error); | |
6067 | } | |
6068 | ||
6069 | /* | |
6070 | * Validate that the auxiliary device array is well formed. We must have an | |
6071 | * array of nvlists, each which describes a valid leaf vdev. If this is an | |
6072 | * import (mode is VDEV_ALLOC_SPARE), then we allow corrupted spares to be | |
6073 | * specified, as long as they are well-formed. | |
6074 | */ | |
6075 | static int | |
6076 | spa_validate_aux_devs(spa_t *spa, nvlist_t *nvroot, uint64_t crtxg, int mode, | |
6077 | spa_aux_vdev_t *sav, const char *config, uint64_t version, | |
6078 | vdev_labeltype_t label) | |
6079 | { | |
6080 | nvlist_t **dev; | |
6081 | uint_t i, ndev; | |
6082 | vdev_t *vd; | |
6083 | int error; | |
6084 | ||
b128c09f BB |
6085 | ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL); |
6086 | ||
34dc7c2f BB |
6087 | /* |
6088 | * It's acceptable to have no devs specified. | |
6089 | */ | |
6090 | if (nvlist_lookup_nvlist_array(nvroot, config, &dev, &ndev) != 0) | |
6091 | return (0); | |
6092 | ||
6093 | if (ndev == 0) | |
2e528b49 | 6094 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
6095 | |
6096 | /* | |
6097 | * Make sure the pool is formatted with a version that supports this | |
6098 | * device type. | |
6099 | */ | |
6100 | if (spa_version(spa) < version) | |
2e528b49 | 6101 | return (SET_ERROR(ENOTSUP)); |
34dc7c2f BB |
6102 | |
6103 | /* | |
6104 | * Set the pending device list so we correctly handle device in-use | |
6105 | * checking. | |
6106 | */ | |
6107 | sav->sav_pending = dev; | |
6108 | sav->sav_npending = ndev; | |
6109 | ||
6110 | for (i = 0; i < ndev; i++) { | |
6111 | if ((error = spa_config_parse(spa, &vd, dev[i], NULL, 0, | |
6112 | mode)) != 0) | |
6113 | goto out; | |
6114 | ||
6115 | if (!vd->vdev_ops->vdev_op_leaf) { | |
6116 | vdev_free(vd); | |
2e528b49 | 6117 | error = SET_ERROR(EINVAL); |
34dc7c2f BB |
6118 | goto out; |
6119 | } | |
6120 | ||
34dc7c2f BB |
6121 | vd->vdev_top = vd; |
6122 | ||
6123 | if ((error = vdev_open(vd)) == 0 && | |
6124 | (error = vdev_label_init(vd, crtxg, label)) == 0) { | |
65ad5d11 AJ |
6125 | fnvlist_add_uint64(dev[i], ZPOOL_CONFIG_GUID, |
6126 | vd->vdev_guid); | |
34dc7c2f BB |
6127 | } |
6128 | ||
6129 | vdev_free(vd); | |
6130 | ||
6131 | if (error && | |
6132 | (mode != VDEV_ALLOC_SPARE && mode != VDEV_ALLOC_L2CACHE)) | |
6133 | goto out; | |
6134 | else | |
6135 | error = 0; | |
6136 | } | |
6137 | ||
6138 | out: | |
6139 | sav->sav_pending = NULL; | |
6140 | sav->sav_npending = 0; | |
6141 | return (error); | |
6142 | } | |
6143 | ||
6144 | static int | |
6145 | spa_validate_aux(spa_t *spa, nvlist_t *nvroot, uint64_t crtxg, int mode) | |
6146 | { | |
6147 | int error; | |
6148 | ||
b128c09f BB |
6149 | ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL); |
6150 | ||
34dc7c2f BB |
6151 | if ((error = spa_validate_aux_devs(spa, nvroot, crtxg, mode, |
6152 | &spa->spa_spares, ZPOOL_CONFIG_SPARES, SPA_VERSION_SPARES, | |
6153 | VDEV_LABEL_SPARE)) != 0) { | |
6154 | return (error); | |
6155 | } | |
6156 | ||
6157 | return (spa_validate_aux_devs(spa, nvroot, crtxg, mode, | |
6158 | &spa->spa_l2cache, ZPOOL_CONFIG_L2CACHE, SPA_VERSION_L2CACHE, | |
6159 | VDEV_LABEL_L2CACHE)); | |
6160 | } | |
6161 | ||
6162 | static void | |
6163 | spa_set_aux_vdevs(spa_aux_vdev_t *sav, nvlist_t **devs, int ndevs, | |
6164 | const char *config) | |
6165 | { | |
6166 | int i; | |
6167 | ||
6168 | if (sav->sav_config != NULL) { | |
6169 | nvlist_t **olddevs; | |
6170 | uint_t oldndevs; | |
6171 | nvlist_t **newdevs; | |
6172 | ||
6173 | /* | |
4e33ba4c | 6174 | * Generate new dev list by concatenating with the |
34dc7c2f BB |
6175 | * current dev list. |
6176 | */ | |
65ad5d11 AJ |
6177 | VERIFY0(nvlist_lookup_nvlist_array(sav->sav_config, config, |
6178 | &olddevs, &oldndevs)); | |
34dc7c2f BB |
6179 | |
6180 | newdevs = kmem_alloc(sizeof (void *) * | |
79c76d5b | 6181 | (ndevs + oldndevs), KM_SLEEP); |
34dc7c2f | 6182 | for (i = 0; i < oldndevs; i++) |
65ad5d11 | 6183 | newdevs[i] = fnvlist_dup(olddevs[i]); |
34dc7c2f | 6184 | for (i = 0; i < ndevs; i++) |
65ad5d11 | 6185 | newdevs[i + oldndevs] = fnvlist_dup(devs[i]); |
34dc7c2f | 6186 | |
65ad5d11 | 6187 | fnvlist_remove(sav->sav_config, config); |
34dc7c2f | 6188 | |
795075e6 PD |
6189 | fnvlist_add_nvlist_array(sav->sav_config, config, |
6190 | (const nvlist_t * const *)newdevs, ndevs + oldndevs); | |
34dc7c2f BB |
6191 | for (i = 0; i < oldndevs + ndevs; i++) |
6192 | nvlist_free(newdevs[i]); | |
6193 | kmem_free(newdevs, (oldndevs + ndevs) * sizeof (void *)); | |
6194 | } else { | |
6195 | /* | |
6196 | * Generate a new dev list. | |
6197 | */ | |
65ad5d11 | 6198 | sav->sav_config = fnvlist_alloc(); |
795075e6 PD |
6199 | fnvlist_add_nvlist_array(sav->sav_config, config, |
6200 | (const nvlist_t * const *)devs, ndevs); | |
34dc7c2f BB |
6201 | } |
6202 | } | |
6203 | ||
6204 | /* | |
6205 | * Stop and drop level 2 ARC devices | |
6206 | */ | |
6207 | void | |
6208 | spa_l2cache_drop(spa_t *spa) | |
6209 | { | |
6210 | vdev_t *vd; | |
6211 | int i; | |
6212 | spa_aux_vdev_t *sav = &spa->spa_l2cache; | |
6213 | ||
6214 | for (i = 0; i < sav->sav_count; i++) { | |
6215 | uint64_t pool; | |
6216 | ||
6217 | vd = sav->sav_vdevs[i]; | |
6218 | ASSERT(vd != NULL); | |
6219 | ||
fb5f0bc8 BB |
6220 | if (spa_l2cache_exists(vd->vdev_guid, &pool) && |
6221 | pool != 0ULL && l2arc_vdev_present(vd)) | |
34dc7c2f | 6222 | l2arc_remove_vdev(vd); |
34dc7c2f BB |
6223 | } |
6224 | } | |
6225 | ||
b5256303 TC |
6226 | /* |
6227 | * Verify encryption parameters for spa creation. If we are encrypting, we must | |
6228 | * have the encryption feature flag enabled. | |
6229 | */ | |
6230 | static int | |
6231 | spa_create_check_encryption_params(dsl_crypto_params_t *dcp, | |
6232 | boolean_t has_encryption) | |
6233 | { | |
6234 | if (dcp->cp_crypt != ZIO_CRYPT_OFF && | |
6235 | dcp->cp_crypt != ZIO_CRYPT_INHERIT && | |
6236 | !has_encryption) | |
6237 | return (SET_ERROR(ENOTSUP)); | |
6238 | ||
1fff937a | 6239 | return (dmu_objset_create_crypt_check(NULL, dcp, NULL)); |
b5256303 TC |
6240 | } |
6241 | ||
34dc7c2f BB |
6242 | /* |
6243 | * Pool Creation | |
6244 | */ | |
6245 | int | |
6246 | spa_create(const char *pool, nvlist_t *nvroot, nvlist_t *props, | |
b5256303 | 6247 | nvlist_t *zplprops, dsl_crypto_params_t *dcp) |
34dc7c2f BB |
6248 | { |
6249 | spa_t *spa; | |
d1807f16 | 6250 | const char *altroot = NULL; |
34dc7c2f BB |
6251 | vdev_t *rvd; |
6252 | dsl_pool_t *dp; | |
6253 | dmu_tx_t *tx; | |
9babb374 | 6254 | int error = 0; |
34dc7c2f BB |
6255 | uint64_t txg = TXG_INITIAL; |
6256 | nvlist_t **spares, **l2cache; | |
6257 | uint_t nspares, nl2cache; | |
b2255edc | 6258 | uint64_t version, obj, ndraid = 0; |
9ae529ec | 6259 | boolean_t has_features; |
b5256303 | 6260 | boolean_t has_encryption; |
715c996d | 6261 | boolean_t has_allocclass; |
b5256303 | 6262 | spa_feature_t feat; |
d1807f16 RY |
6263 | const char *feat_name; |
6264 | const char *poolname; | |
83e9986f RY |
6265 | nvlist_t *nvl; |
6266 | ||
cc99f275 DB |
6267 | if (props == NULL || |
6268 | nvlist_lookup_string(props, "tname", &poolname) != 0) | |
83e9986f | 6269 | poolname = (char *)pool; |
34dc7c2f BB |
6270 | |
6271 | /* | |
6272 | * If this pool already exists, return failure. | |
6273 | */ | |
6274 | mutex_enter(&spa_namespace_lock); | |
83e9986f | 6275 | if (spa_lookup(poolname) != NULL) { |
34dc7c2f | 6276 | mutex_exit(&spa_namespace_lock); |
2e528b49 | 6277 | return (SET_ERROR(EEXIST)); |
34dc7c2f BB |
6278 | } |
6279 | ||
6280 | /* | |
6281 | * Allocate a new spa_t structure. | |
6282 | */ | |
83e9986f RY |
6283 | nvl = fnvlist_alloc(); |
6284 | fnvlist_add_string(nvl, ZPOOL_CONFIG_POOL_NAME, pool); | |
34dc7c2f BB |
6285 | (void) nvlist_lookup_string(props, |
6286 | zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot); | |
83e9986f RY |
6287 | spa = spa_add(poolname, nvl, altroot); |
6288 | fnvlist_free(nvl); | |
fb5f0bc8 | 6289 | spa_activate(spa, spa_mode_global); |
34dc7c2f | 6290 | |
34dc7c2f | 6291 | if (props && (error = spa_prop_validate(spa, props))) { |
34dc7c2f BB |
6292 | spa_deactivate(spa); |
6293 | spa_remove(spa); | |
b128c09f | 6294 | mutex_exit(&spa_namespace_lock); |
34dc7c2f BB |
6295 | return (error); |
6296 | } | |
6297 | ||
83e9986f RY |
6298 | /* |
6299 | * Temporary pool names should never be written to disk. | |
6300 | */ | |
6301 | if (poolname != pool) | |
6302 | spa->spa_import_flags |= ZFS_IMPORT_TEMP_NAME; | |
6303 | ||
9ae529ec | 6304 | has_features = B_FALSE; |
b5256303 | 6305 | has_encryption = B_FALSE; |
715c996d | 6306 | has_allocclass = B_FALSE; |
1c27024e | 6307 | for (nvpair_t *elem = nvlist_next_nvpair(props, NULL); |
9ae529ec | 6308 | elem != NULL; elem = nvlist_next_nvpair(props, elem)) { |
b5256303 | 6309 | if (zpool_prop_feature(nvpair_name(elem))) { |
9ae529ec | 6310 | has_features = B_TRUE; |
b5256303 TC |
6311 | |
6312 | feat_name = strchr(nvpair_name(elem), '@') + 1; | |
6313 | VERIFY0(zfeature_lookup_name(feat_name, &feat)); | |
6314 | if (feat == SPA_FEATURE_ENCRYPTION) | |
6315 | has_encryption = B_TRUE; | |
715c996d | 6316 | if (feat == SPA_FEATURE_ALLOCATION_CLASSES) |
6317 | has_allocclass = B_TRUE; | |
b5256303 TC |
6318 | } |
6319 | } | |
6320 | ||
6321 | /* verify encryption params, if they were provided */ | |
6322 | if (dcp != NULL) { | |
6323 | error = spa_create_check_encryption_params(dcp, has_encryption); | |
6324 | if (error != 0) { | |
6325 | spa_deactivate(spa); | |
6326 | spa_remove(spa); | |
6327 | mutex_exit(&spa_namespace_lock); | |
6328 | return (error); | |
6329 | } | |
9ae529ec | 6330 | } |
c24fa4b1 | 6331 | if (!has_allocclass && zfs_special_devs(nvroot, NULL)) { |
715c996d | 6332 | spa_deactivate(spa); |
6333 | spa_remove(spa); | |
6334 | mutex_exit(&spa_namespace_lock); | |
6335 | return (ENOTSUP); | |
6336 | } | |
9ae529ec CS |
6337 | |
6338 | if (has_features || nvlist_lookup_uint64(props, | |
6339 | zpool_prop_to_name(ZPOOL_PROP_VERSION), &version) != 0) { | |
34dc7c2f | 6340 | version = SPA_VERSION; |
9ae529ec CS |
6341 | } |
6342 | ASSERT(SPA_VERSION_IS_SUPPORTED(version)); | |
428870ff BB |
6343 | |
6344 | spa->spa_first_txg = txg; | |
6345 | spa->spa_uberblock.ub_txg = txg - 1; | |
34dc7c2f BB |
6346 | spa->spa_uberblock.ub_version = version; |
6347 | spa->spa_ubsync = spa->spa_uberblock; | |
3dfb57a3 | 6348 | spa->spa_load_state = SPA_LOAD_CREATE; |
a1d477c2 MA |
6349 | spa->spa_removing_phys.sr_state = DSS_NONE; |
6350 | spa->spa_removing_phys.sr_removing_vdev = -1; | |
6351 | spa->spa_removing_phys.sr_prev_indirect_vdev = -1; | |
944a3724 | 6352 | spa->spa_indirect_vdevs_loaded = B_TRUE; |
34dc7c2f | 6353 | |
9babb374 BB |
6354 | /* |
6355 | * Create "The Godfather" zio to hold all async IOs | |
6356 | */ | |
e022864d MA |
6357 | spa->spa_async_zio_root = kmem_alloc(max_ncpus * sizeof (void *), |
6358 | KM_SLEEP); | |
1c27024e | 6359 | for (int i = 0; i < max_ncpus; i++) { |
e022864d MA |
6360 | spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL, |
6361 | ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | | |
6362 | ZIO_FLAG_GODFATHER); | |
6363 | } | |
9babb374 | 6364 | |
34dc7c2f BB |
6365 | /* |
6366 | * Create the root vdev. | |
6367 | */ | |
b128c09f | 6368 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f BB |
6369 | |
6370 | error = spa_config_parse(spa, &rvd, nvroot, NULL, 0, VDEV_ALLOC_ADD); | |
6371 | ||
6372 | ASSERT(error != 0 || rvd != NULL); | |
6373 | ASSERT(error != 0 || spa->spa_root_vdev == rvd); | |
6374 | ||
6375 | if (error == 0 && !zfs_allocatable_devs(nvroot)) | |
2e528b49 | 6376 | error = SET_ERROR(EINVAL); |
34dc7c2f BB |
6377 | |
6378 | if (error == 0 && | |
6379 | (error = vdev_create(rvd, txg, B_FALSE)) == 0 && | |
b2255edc BB |
6380 | (error = vdev_draid_spare_create(nvroot, rvd, &ndraid, 0)) == 0 && |
6381 | (error = spa_validate_aux(spa, nvroot, txg, VDEV_ALLOC_ADD)) == 0) { | |
cc99f275 DB |
6382 | /* |
6383 | * instantiate the metaslab groups (this will dirty the vdevs) | |
6384 | * we can no longer error exit past this point | |
6385 | */ | |
6386 | for (int c = 0; error == 0 && c < rvd->vdev_children; c++) { | |
6387 | vdev_t *vd = rvd->vdev_child[c]; | |
6388 | ||
6389 | vdev_metaslab_set_size(vd); | |
6390 | vdev_expand(vd, txg); | |
9babb374 | 6391 | } |
34dc7c2f BB |
6392 | } |
6393 | ||
b128c09f | 6394 | spa_config_exit(spa, SCL_ALL, FTAG); |
34dc7c2f BB |
6395 | |
6396 | if (error != 0) { | |
6397 | spa_unload(spa); | |
6398 | spa_deactivate(spa); | |
6399 | spa_remove(spa); | |
6400 | mutex_exit(&spa_namespace_lock); | |
6401 | return (error); | |
6402 | } | |
6403 | ||
6404 | /* | |
6405 | * Get the list of spares, if specified. | |
6406 | */ | |
6407 | if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
6408 | &spares, &nspares) == 0) { | |
65ad5d11 AJ |
6409 | spa->spa_spares.sav_config = fnvlist_alloc(); |
6410 | fnvlist_add_nvlist_array(spa->spa_spares.sav_config, | |
795075e6 PD |
6411 | ZPOOL_CONFIG_SPARES, (const nvlist_t * const *)spares, |
6412 | nspares); | |
b128c09f | 6413 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f | 6414 | spa_load_spares(spa); |
b128c09f | 6415 | spa_config_exit(spa, SCL_ALL, FTAG); |
34dc7c2f BB |
6416 | spa->spa_spares.sav_sync = B_TRUE; |
6417 | } | |
6418 | ||
6419 | /* | |
6420 | * Get the list of level 2 cache devices, if specified. | |
6421 | */ | |
6422 | if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, | |
6423 | &l2cache, &nl2cache) == 0) { | |
795075e6 PD |
6424 | VERIFY0(nvlist_alloc(&spa->spa_l2cache.sav_config, |
6425 | NV_UNIQUE_NAME, KM_SLEEP)); | |
65ad5d11 | 6426 | fnvlist_add_nvlist_array(spa->spa_l2cache.sav_config, |
795075e6 PD |
6427 | ZPOOL_CONFIG_L2CACHE, (const nvlist_t * const *)l2cache, |
6428 | nl2cache); | |
b128c09f | 6429 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f | 6430 | spa_load_l2cache(spa); |
b128c09f | 6431 | spa_config_exit(spa, SCL_ALL, FTAG); |
34dc7c2f BB |
6432 | spa->spa_l2cache.sav_sync = B_TRUE; |
6433 | } | |
6434 | ||
9ae529ec | 6435 | spa->spa_is_initializing = B_TRUE; |
b5256303 | 6436 | spa->spa_dsl_pool = dp = dsl_pool_create(spa, zplprops, dcp, txg); |
9ae529ec | 6437 | spa->spa_is_initializing = B_FALSE; |
34dc7c2f | 6438 | |
428870ff BB |
6439 | /* |
6440 | * Create DDTs (dedup tables). | |
6441 | */ | |
6442 | ddt_create(spa); | |
67a1b037 PJD |
6443 | /* |
6444 | * Create BRT table and BRT table object. | |
6445 | */ | |
6446 | brt_create(spa); | |
428870ff BB |
6447 | |
6448 | spa_update_dspace(spa); | |
6449 | ||
34dc7c2f BB |
6450 | tx = dmu_tx_create_assigned(dp, txg); |
6451 | ||
d5e024cb BB |
6452 | /* |
6453 | * Create the pool's history object. | |
6454 | */ | |
6455 | if (version >= SPA_VERSION_ZPOOL_HISTORY && !spa->spa_history) | |
6456 | spa_history_create_obj(spa, tx); | |
6457 | ||
6458 | spa_event_notify(spa, NULL, NULL, ESC_ZFS_POOL_CREATE); | |
6459 | spa_history_log_version(spa, "create", tx); | |
6460 | ||
34dc7c2f BB |
6461 | /* |
6462 | * Create the pool config object. | |
6463 | */ | |
6464 | spa->spa_config_object = dmu_object_alloc(spa->spa_meta_objset, | |
b128c09f | 6465 | DMU_OT_PACKED_NVLIST, SPA_CONFIG_BLOCKSIZE, |
34dc7c2f BB |
6466 | DMU_OT_PACKED_NVLIST_SIZE, sizeof (uint64_t), tx); |
6467 | ||
6468 | if (zap_add(spa->spa_meta_objset, | |
6469 | DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CONFIG, | |
6470 | sizeof (uint64_t), 1, &spa->spa_config_object, tx) != 0) { | |
6471 | cmn_err(CE_PANIC, "failed to add pool config"); | |
6472 | } | |
6473 | ||
428870ff BB |
6474 | if (zap_add(spa->spa_meta_objset, |
6475 | DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CREATION_VERSION, | |
6476 | sizeof (uint64_t), 1, &version, tx) != 0) { | |
6477 | cmn_err(CE_PANIC, "failed to add pool version"); | |
6478 | } | |
6479 | ||
34dc7c2f BB |
6480 | /* Newly created pools with the right version are always deflated. */ |
6481 | if (version >= SPA_VERSION_RAIDZ_DEFLATE) { | |
6482 | spa->spa_deflate = TRUE; | |
6483 | if (zap_add(spa->spa_meta_objset, | |
6484 | DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
6485 | sizeof (uint64_t), 1, &spa->spa_deflate, tx) != 0) { | |
6486 | cmn_err(CE_PANIC, "failed to add deflate"); | |
6487 | } | |
6488 | } | |
6489 | ||
6490 | /* | |
428870ff | 6491 | * Create the deferred-free bpobj. Turn off compression |
34dc7c2f BB |
6492 | * because sync-to-convergence takes longer if the blocksize |
6493 | * keeps changing. | |
6494 | */ | |
428870ff BB |
6495 | obj = bpobj_alloc(spa->spa_meta_objset, 1 << 14, tx); |
6496 | dmu_object_set_compress(spa->spa_meta_objset, obj, | |
34dc7c2f | 6497 | ZIO_COMPRESS_OFF, tx); |
34dc7c2f | 6498 | if (zap_add(spa->spa_meta_objset, |
428870ff BB |
6499 | DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_SYNC_BPOBJ, |
6500 | sizeof (uint64_t), 1, &obj, tx) != 0) { | |
6501 | cmn_err(CE_PANIC, "failed to add bpobj"); | |
34dc7c2f | 6502 | } |
428870ff BB |
6503 | VERIFY3U(0, ==, bpobj_open(&spa->spa_deferred_bpobj, |
6504 | spa->spa_meta_objset, obj)); | |
34dc7c2f | 6505 | |
3c67d83a TH |
6506 | /* |
6507 | * Generate some random noise for salted checksums to operate on. | |
6508 | */ | |
6509 | (void) random_get_pseudo_bytes(spa->spa_cksum_salt.zcs_bytes, | |
6510 | sizeof (spa->spa_cksum_salt.zcs_bytes)); | |
6511 | ||
34dc7c2f BB |
6512 | /* |
6513 | * Set pool properties. | |
6514 | */ | |
6515 | spa->spa_bootfs = zpool_prop_default_numeric(ZPOOL_PROP_BOOTFS); | |
6516 | spa->spa_delegation = zpool_prop_default_numeric(ZPOOL_PROP_DELEGATION); | |
6517 | spa->spa_failmode = zpool_prop_default_numeric(ZPOOL_PROP_FAILUREMODE); | |
9babb374 | 6518 | spa->spa_autoexpand = zpool_prop_default_numeric(ZPOOL_PROP_AUTOEXPAND); |
379ca9cf | 6519 | spa->spa_multihost = zpool_prop_default_numeric(ZPOOL_PROP_MULTIHOST); |
1b939560 | 6520 | spa->spa_autotrim = zpool_prop_default_numeric(ZPOOL_PROP_AUTOTRIM); |
428870ff | 6521 | |
d164b209 BB |
6522 | if (props != NULL) { |
6523 | spa_configfile_set(spa, props, B_FALSE); | |
13fe0198 | 6524 | spa_sync_props(props, tx); |
d164b209 | 6525 | } |
34dc7c2f | 6526 | |
b2255edc BB |
6527 | for (int i = 0; i < ndraid; i++) |
6528 | spa_feature_incr(spa, SPA_FEATURE_DRAID, tx); | |
6529 | ||
34dc7c2f BB |
6530 | dmu_tx_commit(tx); |
6531 | ||
6532 | spa->spa_sync_on = B_TRUE; | |
b5256303 | 6533 | txg_sync_start(dp); |
379ca9cf | 6534 | mmp_thread_start(spa); |
b5256303 | 6535 | txg_wait_synced(dp, txg); |
34dc7c2f | 6536 | |
9d5b5245 SD |
6537 | spa_spawn_aux_threads(spa); |
6538 | ||
55c12724 | 6539 | spa_write_cachefile(spa, B_FALSE, B_TRUE, B_TRUE); |
34dc7c2f | 6540 | |
0c66c32d JG |
6541 | /* |
6542 | * Don't count references from objsets that are already closed | |
6543 | * and are making their way through the eviction process. | |
6544 | */ | |
6545 | spa_evicting_os_wait(spa); | |
424fd7c3 | 6546 | spa->spa_minref = zfs_refcount_count(&spa->spa_refcount); |
3dfb57a3 | 6547 | spa->spa_load_state = SPA_LOAD_NONE; |
b128c09f | 6548 | |
4759342a JL |
6549 | spa_import_os(spa); |
6550 | ||
d164b209 BB |
6551 | mutex_exit(&spa_namespace_lock); |
6552 | ||
34dc7c2f BB |
6553 | return (0); |
6554 | } | |
6555 | ||
9babb374 BB |
6556 | /* |
6557 | * Import a non-root pool into the system. | |
6558 | */ | |
6559 | int | |
13fe0198 | 6560 | spa_import(char *pool, nvlist_t *config, nvlist_t *props, uint64_t flags) |
34dc7c2f BB |
6561 | { |
6562 | spa_t *spa; | |
d1807f16 | 6563 | const char *altroot = NULL; |
428870ff | 6564 | spa_load_state_t state = SPA_LOAD_IMPORT; |
8a393be3 | 6565 | zpool_load_policy_t policy; |
da92d5cb | 6566 | spa_mode_t mode = spa_mode_global; |
572e2857 | 6567 | uint64_t readonly = B_FALSE; |
9babb374 | 6568 | int error; |
34dc7c2f BB |
6569 | nvlist_t *nvroot; |
6570 | nvlist_t **spares, **l2cache; | |
6571 | uint_t nspares, nl2cache; | |
34dc7c2f BB |
6572 | |
6573 | /* | |
6574 | * If a pool with this name exists, return failure. | |
6575 | */ | |
6576 | mutex_enter(&spa_namespace_lock); | |
428870ff | 6577 | if (spa_lookup(pool) != NULL) { |
9babb374 | 6578 | mutex_exit(&spa_namespace_lock); |
2e528b49 | 6579 | return (SET_ERROR(EEXIST)); |
34dc7c2f BB |
6580 | } |
6581 | ||
6582 | /* | |
6583 | * Create and initialize the spa structure. | |
6584 | */ | |
6585 | (void) nvlist_lookup_string(props, | |
6586 | zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot); | |
572e2857 BB |
6587 | (void) nvlist_lookup_uint64(props, |
6588 | zpool_prop_to_name(ZPOOL_PROP_READONLY), &readonly); | |
6589 | if (readonly) | |
da92d5cb | 6590 | mode = SPA_MODE_READ; |
428870ff | 6591 | spa = spa_add(pool, config, altroot); |
572e2857 BB |
6592 | spa->spa_import_flags = flags; |
6593 | ||
6594 | /* | |
6595 | * Verbatim import - Take a pool and insert it into the namespace | |
6596 | * as if it had been loaded at boot. | |
6597 | */ | |
6598 | if (spa->spa_import_flags & ZFS_IMPORT_VERBATIM) { | |
6599 | if (props != NULL) | |
6600 | spa_configfile_set(spa, props, B_FALSE); | |
6601 | ||
55c12724 | 6602 | spa_write_cachefile(spa, B_FALSE, B_TRUE, B_FALSE); |
12fa0466 | 6603 | spa_event_notify(spa, NULL, NULL, ESC_ZFS_POOL_IMPORT); |
4a0ee12a | 6604 | zfs_dbgmsg("spa_import: verbatim import of %s", pool); |
572e2857 | 6605 | mutex_exit(&spa_namespace_lock); |
572e2857 BB |
6606 | return (0); |
6607 | } | |
6608 | ||
6609 | spa_activate(spa, mode); | |
34dc7c2f | 6610 | |
9babb374 BB |
6611 | /* |
6612 | * Don't start async tasks until we know everything is healthy. | |
6613 | */ | |
6614 | spa_async_suspend(spa); | |
b128c09f | 6615 | |
8a393be3 PZ |
6616 | zpool_get_load_policy(config, &policy); |
6617 | if (policy.zlp_rewind & ZPOOL_DO_REWIND) | |
572e2857 BB |
6618 | state = SPA_LOAD_RECOVER; |
6619 | ||
6cb8e530 | 6620 | spa->spa_config_source = SPA_CONFIG_SRC_TRYIMPORT; |
572e2857 | 6621 | |
6cb8e530 PZ |
6622 | if (state != SPA_LOAD_RECOVER) { |
6623 | spa->spa_last_ubsync_txg = spa->spa_load_txg = 0; | |
6624 | zfs_dbgmsg("spa_import: importing %s", pool); | |
6625 | } else { | |
6626 | zfs_dbgmsg("spa_import: importing %s, max_txg=%lld " | |
8a393be3 | 6627 | "(RECOVERY MODE)", pool, (longlong_t)policy.zlp_txg); |
6cb8e530 | 6628 | } |
8a393be3 | 6629 | error = spa_load_best(spa, state, policy.zlp_txg, policy.zlp_rewind); |
428870ff BB |
6630 | |
6631 | /* | |
572e2857 BB |
6632 | * Propagate anything learned while loading the pool and pass it |
6633 | * back to caller (i.e. rewind info, missing devices, etc). | |
428870ff | 6634 | */ |
65ad5d11 | 6635 | fnvlist_add_nvlist(config, ZPOOL_CONFIG_LOAD_INFO, spa->spa_load_info); |
34dc7c2f | 6636 | |
b128c09f | 6637 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f | 6638 | /* |
9babb374 BB |
6639 | * Toss any existing sparelist, as it doesn't have any validity |
6640 | * anymore, and conflicts with spa_has_spare(). | |
34dc7c2f | 6641 | */ |
9babb374 | 6642 | if (spa->spa_spares.sav_config) { |
34dc7c2f BB |
6643 | nvlist_free(spa->spa_spares.sav_config); |
6644 | spa->spa_spares.sav_config = NULL; | |
6645 | spa_load_spares(spa); | |
6646 | } | |
9babb374 | 6647 | if (spa->spa_l2cache.sav_config) { |
34dc7c2f BB |
6648 | nvlist_free(spa->spa_l2cache.sav_config); |
6649 | spa->spa_l2cache.sav_config = NULL; | |
6650 | spa_load_l2cache(spa); | |
6651 | } | |
6652 | ||
65ad5d11 | 6653 | nvroot = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE); |
b128c09f | 6654 | spa_config_exit(spa, SCL_ALL, FTAG); |
34dc7c2f | 6655 | |
d164b209 BB |
6656 | if (props != NULL) |
6657 | spa_configfile_set(spa, props, B_FALSE); | |
6658 | ||
fb5f0bc8 BB |
6659 | if (error != 0 || (props && spa_writeable(spa) && |
6660 | (error = spa_prop_set(spa, props)))) { | |
9babb374 BB |
6661 | spa_unload(spa); |
6662 | spa_deactivate(spa); | |
6663 | spa_remove(spa); | |
34dc7c2f BB |
6664 | mutex_exit(&spa_namespace_lock); |
6665 | return (error); | |
6666 | } | |
6667 | ||
572e2857 BB |
6668 | spa_async_resume(spa); |
6669 | ||
34dc7c2f BB |
6670 | /* |
6671 | * Override any spares and level 2 cache devices as specified by | |
6672 | * the user, as these may have correct device names/devids, etc. | |
6673 | */ | |
6674 | if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
6675 | &spares, &nspares) == 0) { | |
6676 | if (spa->spa_spares.sav_config) | |
65ad5d11 AJ |
6677 | fnvlist_remove(spa->spa_spares.sav_config, |
6678 | ZPOOL_CONFIG_SPARES); | |
34dc7c2f | 6679 | else |
65ad5d11 AJ |
6680 | spa->spa_spares.sav_config = fnvlist_alloc(); |
6681 | fnvlist_add_nvlist_array(spa->spa_spares.sav_config, | |
795075e6 PD |
6682 | ZPOOL_CONFIG_SPARES, (const nvlist_t * const *)spares, |
6683 | nspares); | |
b128c09f | 6684 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f | 6685 | spa_load_spares(spa); |
b128c09f | 6686 | spa_config_exit(spa, SCL_ALL, FTAG); |
34dc7c2f BB |
6687 | spa->spa_spares.sav_sync = B_TRUE; |
6688 | } | |
6689 | if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, | |
6690 | &l2cache, &nl2cache) == 0) { | |
6691 | if (spa->spa_l2cache.sav_config) | |
65ad5d11 AJ |
6692 | fnvlist_remove(spa->spa_l2cache.sav_config, |
6693 | ZPOOL_CONFIG_L2CACHE); | |
34dc7c2f | 6694 | else |
65ad5d11 AJ |
6695 | spa->spa_l2cache.sav_config = fnvlist_alloc(); |
6696 | fnvlist_add_nvlist_array(spa->spa_l2cache.sav_config, | |
795075e6 PD |
6697 | ZPOOL_CONFIG_L2CACHE, (const nvlist_t * const *)l2cache, |
6698 | nl2cache); | |
b128c09f | 6699 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f | 6700 | spa_load_l2cache(spa); |
b128c09f | 6701 | spa_config_exit(spa, SCL_ALL, FTAG); |
34dc7c2f BB |
6702 | spa->spa_l2cache.sav_sync = B_TRUE; |
6703 | } | |
6704 | ||
428870ff BB |
6705 | /* |
6706 | * Check for any removed devices. | |
6707 | */ | |
6708 | if (spa->spa_autoreplace) { | |
6709 | spa_aux_check_removed(&spa->spa_spares); | |
6710 | spa_aux_check_removed(&spa->spa_l2cache); | |
6711 | } | |
6712 | ||
fb5f0bc8 | 6713 | if (spa_writeable(spa)) { |
b128c09f BB |
6714 | /* |
6715 | * Update the config cache to include the newly-imported pool. | |
6716 | */ | |
45d1cae3 | 6717 | spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); |
b128c09f | 6718 | } |
34dc7c2f | 6719 | |
34dc7c2f | 6720 | /* |
9babb374 BB |
6721 | * It's possible that the pool was expanded while it was exported. |
6722 | * We kick off an async task to handle this for us. | |
34dc7c2f | 6723 | */ |
9babb374 | 6724 | spa_async_request(spa, SPA_ASYNC_AUTOEXPAND); |
b128c09f | 6725 | |
d5e024cb | 6726 | spa_history_log_version(spa, "import", NULL); |
fb390aaf | 6727 | |
12fa0466 | 6728 | spa_event_notify(spa, NULL, NULL, ESC_ZFS_POOL_IMPORT); |
fb390aaf | 6729 | |
fb390aaf HR |
6730 | mutex_exit(&spa_namespace_lock); |
6731 | ||
ec213971 | 6732 | zvol_create_minors_recursive(pool); |
4a22ba5b | 6733 | |
4759342a JL |
6734 | spa_import_os(spa); |
6735 | ||
b128c09f BB |
6736 | return (0); |
6737 | } | |
6738 | ||
34dc7c2f BB |
6739 | nvlist_t * |
6740 | spa_tryimport(nvlist_t *tryconfig) | |
6741 | { | |
6742 | nvlist_t *config = NULL; | |
d1807f16 | 6743 | const char *poolname, *cachefile; |
34dc7c2f BB |
6744 | spa_t *spa; |
6745 | uint64_t state; | |
d164b209 | 6746 | int error; |
8a393be3 | 6747 | zpool_load_policy_t policy; |
34dc7c2f BB |
6748 | |
6749 | if (nvlist_lookup_string(tryconfig, ZPOOL_CONFIG_POOL_NAME, &poolname)) | |
6750 | return (NULL); | |
6751 | ||
6752 | if (nvlist_lookup_uint64(tryconfig, ZPOOL_CONFIG_POOL_STATE, &state)) | |
6753 | return (NULL); | |
6754 | ||
6755 | /* | |
6756 | * Create and initialize the spa structure. | |
6757 | */ | |
6758 | mutex_enter(&spa_namespace_lock); | |
428870ff | 6759 | spa = spa_add(TRYIMPORT_NAME, tryconfig, NULL); |
da92d5cb | 6760 | spa_activate(spa, SPA_MODE_READ); |
34dc7c2f BB |
6761 | |
6762 | /* | |
8a393be3 | 6763 | * Rewind pool if a max txg was provided. |
34dc7c2f | 6764 | */ |
8a393be3 PZ |
6765 | zpool_get_load_policy(spa->spa_config, &policy); |
6766 | if (policy.zlp_txg != UINT64_MAX) { | |
6767 | spa->spa_load_max_txg = policy.zlp_txg; | |
6cb8e530 PZ |
6768 | spa->spa_extreme_rewind = B_TRUE; |
6769 | zfs_dbgmsg("spa_tryimport: importing %s, max_txg=%lld", | |
8a393be3 | 6770 | poolname, (longlong_t)policy.zlp_txg); |
6cb8e530 PZ |
6771 | } else { |
6772 | zfs_dbgmsg("spa_tryimport: importing %s", poolname); | |
6773 | } | |
6774 | ||
6775 | if (nvlist_lookup_string(tryconfig, ZPOOL_CONFIG_CACHEFILE, &cachefile) | |
6776 | == 0) { | |
6777 | zfs_dbgmsg("spa_tryimport: using cachefile '%s'", cachefile); | |
6778 | spa->spa_config_source = SPA_CONFIG_SRC_CACHEFILE; | |
6779 | } else { | |
6780 | spa->spa_config_source = SPA_CONFIG_SRC_SCAN; | |
6781 | } | |
6782 | ||
82ac409a AH |
6783 | /* |
6784 | * spa_import() relies on a pool config fetched by spa_try_import() | |
6785 | * for spare/cache devices. Import flags are not passed to | |
6786 | * spa_tryimport(), which makes it return early due to a missing log | |
6787 | * device and missing retrieving the cache device and spare eventually. | |
6788 | * Passing ZFS_IMPORT_MISSING_LOG to spa_tryimport() makes it fetch | |
6789 | * the correct configuration regardless of the missing log device. | |
6790 | */ | |
6791 | spa->spa_import_flags |= ZFS_IMPORT_MISSING_LOG; | |
6792 | ||
6cb8e530 | 6793 | error = spa_load(spa, SPA_LOAD_TRYIMPORT, SPA_IMPORT_EXISTING); |
34dc7c2f BB |
6794 | |
6795 | /* | |
6796 | * If 'tryconfig' was at least parsable, return the current config. | |
6797 | */ | |
6798 | if (spa->spa_root_vdev != NULL) { | |
34dc7c2f | 6799 | config = spa_config_generate(spa, NULL, -1ULL, B_TRUE); |
65ad5d11 AJ |
6800 | fnvlist_add_string(config, ZPOOL_CONFIG_POOL_NAME, poolname); |
6801 | fnvlist_add_uint64(config, ZPOOL_CONFIG_POOL_STATE, state); | |
6802 | fnvlist_add_uint64(config, ZPOOL_CONFIG_TIMESTAMP, | |
6803 | spa->spa_uberblock.ub_timestamp); | |
6804 | fnvlist_add_nvlist(config, ZPOOL_CONFIG_LOAD_INFO, | |
6805 | spa->spa_load_info); | |
6806 | fnvlist_add_uint64(config, ZPOOL_CONFIG_ERRATA, | |
6807 | spa->spa_errata); | |
34dc7c2f BB |
6808 | |
6809 | /* | |
6810 | * If the bootfs property exists on this pool then we | |
6811 | * copy it out so that external consumers can tell which | |
6812 | * pools are bootable. | |
6813 | */ | |
d164b209 | 6814 | if ((!error || error == EEXIST) && spa->spa_bootfs) { |
79c76d5b | 6815 | char *tmpname = kmem_alloc(MAXPATHLEN, KM_SLEEP); |
34dc7c2f BB |
6816 | |
6817 | /* | |
6818 | * We have to play games with the name since the | |
6819 | * pool was opened as TRYIMPORT_NAME. | |
6820 | */ | |
b128c09f | 6821 | if (dsl_dsobj_to_dsname(spa_name(spa), |
34dc7c2f BB |
6822 | spa->spa_bootfs, tmpname) == 0) { |
6823 | char *cp; | |
d1d7e268 MK |
6824 | char *dsname; |
6825 | ||
79c76d5b | 6826 | dsname = kmem_alloc(MAXPATHLEN, KM_SLEEP); |
34dc7c2f BB |
6827 | |
6828 | cp = strchr(tmpname, '/'); | |
6829 | if (cp == NULL) { | |
6830 | (void) strlcpy(dsname, tmpname, | |
6831 | MAXPATHLEN); | |
6832 | } else { | |
6833 | (void) snprintf(dsname, MAXPATHLEN, | |
6834 | "%s/%s", poolname, ++cp); | |
6835 | } | |
65ad5d11 AJ |
6836 | fnvlist_add_string(config, ZPOOL_CONFIG_BOOTFS, |
6837 | dsname); | |
34dc7c2f BB |
6838 | kmem_free(dsname, MAXPATHLEN); |
6839 | } | |
6840 | kmem_free(tmpname, MAXPATHLEN); | |
6841 | } | |
6842 | ||
6843 | /* | |
6844 | * Add the list of hot spares and level 2 cache devices. | |
6845 | */ | |
9babb374 | 6846 | spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); |
34dc7c2f BB |
6847 | spa_add_spares(spa, config); |
6848 | spa_add_l2cache(spa, config); | |
9babb374 | 6849 | spa_config_exit(spa, SCL_CONFIG, FTAG); |
34dc7c2f BB |
6850 | } |
6851 | ||
6852 | spa_unload(spa); | |
6853 | spa_deactivate(spa); | |
6854 | spa_remove(spa); | |
6855 | mutex_exit(&spa_namespace_lock); | |
6856 | ||
6857 | return (config); | |
6858 | } | |
6859 | ||
6860 | /* | |
6861 | * Pool export/destroy | |
6862 | * | |
6863 | * The act of destroying or exporting a pool is very simple. We make sure there | |
6864 | * is no more pending I/O and any references to the pool are gone. Then, we | |
6865 | * update the pool state and sync all the labels to disk, removing the | |
fb5f0bc8 BB |
6866 | * configuration from the cache afterwards. If the 'hardforce' flag is set, then |
6867 | * we don't sync the labels or remove the configuration cache. | |
34dc7c2f BB |
6868 | */ |
6869 | static int | |
4d55ea81 | 6870 | spa_export_common(const char *pool, int new_state, nvlist_t **oldconfig, |
fb5f0bc8 | 6871 | boolean_t force, boolean_t hardforce) |
34dc7c2f | 6872 | { |
f4f50a70 | 6873 | int error; |
34dc7c2f BB |
6874 | spa_t *spa; |
6875 | ||
6876 | if (oldconfig) | |
6877 | *oldconfig = NULL; | |
6878 | ||
da92d5cb | 6879 | if (!(spa_mode_global & SPA_MODE_WRITE)) |
2e528b49 | 6880 | return (SET_ERROR(EROFS)); |
34dc7c2f BB |
6881 | |
6882 | mutex_enter(&spa_namespace_lock); | |
6883 | if ((spa = spa_lookup(pool)) == NULL) { | |
6884 | mutex_exit(&spa_namespace_lock); | |
2e528b49 | 6885 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
6886 | } |
6887 | ||
43a85362 SD |
6888 | if (spa->spa_is_exporting) { |
6889 | /* the pool is being exported by another thread */ | |
6890 | mutex_exit(&spa_namespace_lock); | |
6891 | return (SET_ERROR(ZFS_ERR_EXPORT_IN_PROGRESS)); | |
6892 | } | |
6893 | spa->spa_is_exporting = B_TRUE; | |
6894 | ||
34dc7c2f BB |
6895 | /* |
6896 | * Put a hold on the pool, drop the namespace lock, stop async tasks, | |
6897 | * reacquire the namespace lock, and see if we can export. | |
6898 | */ | |
6899 | spa_open_ref(spa, FTAG); | |
6900 | mutex_exit(&spa_namespace_lock); | |
6901 | spa_async_suspend(spa); | |
a0bd735a BP |
6902 | if (spa->spa_zvol_taskq) { |
6903 | zvol_remove_minors(spa, spa_name(spa), B_TRUE); | |
6904 | taskq_wait(spa->spa_zvol_taskq); | |
6905 | } | |
34dc7c2f BB |
6906 | mutex_enter(&spa_namespace_lock); |
6907 | spa_close(spa, FTAG); | |
6908 | ||
d14cfd83 IH |
6909 | if (spa->spa_state == POOL_STATE_UNINITIALIZED) |
6910 | goto export_spa; | |
34dc7c2f | 6911 | /* |
d14cfd83 IH |
6912 | * The pool will be in core if it's openable, in which case we can |
6913 | * modify its state. Objsets may be open only because they're dirty, | |
6914 | * so we have to force it to sync before checking spa_refcnt. | |
34dc7c2f | 6915 | */ |
0c66c32d | 6916 | if (spa->spa_sync_on) { |
34dc7c2f | 6917 | txg_wait_synced(spa->spa_dsl_pool, 0); |
0c66c32d JG |
6918 | spa_evicting_os_wait(spa); |
6919 | } | |
34dc7c2f | 6920 | |
d14cfd83 IH |
6921 | /* |
6922 | * A pool cannot be exported or destroyed if there are active | |
6923 | * references. If we are resetting a pool, allow references by | |
6924 | * fault injection handlers. | |
6925 | */ | |
f4f50a70 WA |
6926 | if (!spa_refcount_zero(spa) || (spa->spa_inject_ref != 0)) { |
6927 | error = SET_ERROR(EBUSY); | |
6928 | goto fail; | |
d14cfd83 | 6929 | } |
34dc7c2f | 6930 | |
d14cfd83 | 6931 | if (spa->spa_sync_on) { |
88b199c2 | 6932 | vdev_t *rvd = spa->spa_root_vdev; |
b128c09f BB |
6933 | /* |
6934 | * A pool cannot be exported if it has an active shared spare. | |
6935 | * This is to prevent other pools stealing the active spare | |
6936 | * from an exported pool. At user's own will, such pool can | |
6937 | * be forcedly exported. | |
6938 | */ | |
6939 | if (!force && new_state == POOL_STATE_EXPORTED && | |
6940 | spa_has_active_shared_spare(spa)) { | |
f4f50a70 WA |
6941 | error = SET_ERROR(EXDEV); |
6942 | goto fail; | |
b128c09f | 6943 | } |
34dc7c2f | 6944 | |
619f0976 GW |
6945 | /* |
6946 | * We're about to export or destroy this pool. Make sure | |
1b939560 BB |
6947 | * we stop all initialization and trim activity here before |
6948 | * we set the spa_final_txg. This will ensure that all | |
619f0976 GW |
6949 | * dirty data resulting from the initialization is |
6950 | * committed to disk before we unload the pool. | |
6951 | */ | |
88b199c2 RY |
6952 | vdev_initialize_stop_all(rvd, VDEV_INITIALIZE_ACTIVE); |
6953 | vdev_trim_stop_all(rvd, VDEV_TRIM_ACTIVE); | |
6954 | vdev_autotrim_stop_all(spa); | |
6955 | vdev_rebuild_stop_all(spa); | |
619f0976 | 6956 | |
34dc7c2f BB |
6957 | /* |
6958 | * We want this to be reflected on every label, | |
6959 | * so mark them all dirty. spa_unload() will do the | |
6960 | * final sync that pushes these changes out. | |
6961 | */ | |
fb5f0bc8 | 6962 | if (new_state != POOL_STATE_UNINITIALIZED && !hardforce) { |
b128c09f | 6963 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f | 6964 | spa->spa_state = new_state; |
88b199c2 | 6965 | vdev_config_dirty(rvd); |
2fb52853 GA |
6966 | spa_config_exit(spa, SCL_ALL, FTAG); |
6967 | } | |
6968 | ||
6969 | /* | |
6970 | * If the log space map feature is enabled and the pool is | |
6971 | * getting exported (but not destroyed), we want to spend some | |
6972 | * time flushing as many metaslabs as we can in an attempt to | |
6973 | * destroy log space maps and save import time. This has to be | |
6974 | * done before we set the spa_final_txg, otherwise | |
6975 | * spa_sync() -> spa_flush_metaslabs() may dirty the final TXGs. | |
6976 | * spa_should_flush_logs_on_unload() should be called after | |
6977 | * spa_state has been set to the new_state. | |
6978 | */ | |
6979 | if (spa_should_flush_logs_on_unload(spa)) | |
6980 | spa_unload_log_sm_flush_all(spa); | |
6981 | ||
6982 | if (new_state != POOL_STATE_UNINITIALIZED && !hardforce) { | |
6983 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); | |
428870ff BB |
6984 | spa->spa_final_txg = spa_last_synced_txg(spa) + |
6985 | TXG_DEFER_SIZE + 1; | |
b128c09f | 6986 | spa_config_exit(spa, SCL_ALL, FTAG); |
34dc7c2f BB |
6987 | } |
6988 | } | |
6989 | ||
d14cfd83 | 6990 | export_spa: |
4759342a JL |
6991 | spa_export_os(spa); |
6992 | ||
d5e024cb BB |
6993 | if (new_state == POOL_STATE_DESTROYED) |
6994 | spa_event_notify(spa, NULL, NULL, ESC_ZFS_POOL_DESTROY); | |
6995 | else if (new_state == POOL_STATE_EXPORTED) | |
6996 | spa_event_notify(spa, NULL, NULL, ESC_ZFS_POOL_EXPORT); | |
34dc7c2f BB |
6997 | |
6998 | if (spa->spa_state != POOL_STATE_UNINITIALIZED) { | |
6999 | spa_unload(spa); | |
7000 | spa_deactivate(spa); | |
7001 | } | |
7002 | ||
7003 | if (oldconfig && spa->spa_config) | |
65ad5d11 | 7004 | *oldconfig = fnvlist_dup(spa->spa_config); |
34dc7c2f BB |
7005 | |
7006 | if (new_state != POOL_STATE_UNINITIALIZED) { | |
fb5f0bc8 | 7007 | if (!hardforce) |
55c12724 | 7008 | spa_write_cachefile(spa, B_TRUE, B_TRUE, B_FALSE); |
34dc7c2f | 7009 | spa_remove(spa); |
43a85362 SD |
7010 | } else { |
7011 | /* | |
7012 | * If spa_remove() is not called for this spa_t and | |
7013 | * there is any possibility that it can be reused, | |
7014 | * we make sure to reset the exporting flag. | |
7015 | */ | |
7016 | spa->spa_is_exporting = B_FALSE; | |
34dc7c2f | 7017 | } |
34dc7c2f | 7018 | |
43a85362 | 7019 | mutex_exit(&spa_namespace_lock); |
34dc7c2f | 7020 | return (0); |
f4f50a70 WA |
7021 | |
7022 | fail: | |
7023 | spa->spa_is_exporting = B_FALSE; | |
7024 | spa_async_resume(spa); | |
7025 | mutex_exit(&spa_namespace_lock); | |
7026 | return (error); | |
34dc7c2f BB |
7027 | } |
7028 | ||
7029 | /* | |
7030 | * Destroy a storage pool. | |
7031 | */ | |
7032 | int | |
4d55ea81 | 7033 | spa_destroy(const char *pool) |
34dc7c2f | 7034 | { |
fb5f0bc8 BB |
7035 | return (spa_export_common(pool, POOL_STATE_DESTROYED, NULL, |
7036 | B_FALSE, B_FALSE)); | |
34dc7c2f BB |
7037 | } |
7038 | ||
7039 | /* | |
7040 | * Export a storage pool. | |
7041 | */ | |
7042 | int | |
4d55ea81 | 7043 | spa_export(const char *pool, nvlist_t **oldconfig, boolean_t force, |
fb5f0bc8 | 7044 | boolean_t hardforce) |
34dc7c2f | 7045 | { |
fb5f0bc8 BB |
7046 | return (spa_export_common(pool, POOL_STATE_EXPORTED, oldconfig, |
7047 | force, hardforce)); | |
34dc7c2f BB |
7048 | } |
7049 | ||
7050 | /* | |
7051 | * Similar to spa_export(), this unloads the spa_t without actually removing it | |
7052 | * from the namespace in any way. | |
7053 | */ | |
7054 | int | |
4d55ea81 | 7055 | spa_reset(const char *pool) |
34dc7c2f | 7056 | { |
b128c09f | 7057 | return (spa_export_common(pool, POOL_STATE_UNINITIALIZED, NULL, |
fb5f0bc8 | 7058 | B_FALSE, B_FALSE)); |
34dc7c2f BB |
7059 | } |
7060 | ||
34dc7c2f BB |
7061 | /* |
7062 | * ========================================================================== | |
7063 | * Device manipulation | |
7064 | * ========================================================================== | |
7065 | */ | |
7066 | ||
b2255edc BB |
7067 | /* |
7068 | * This is called as a synctask to increment the draid feature flag | |
7069 | */ | |
7070 | static void | |
7071 | spa_draid_feature_incr(void *arg, dmu_tx_t *tx) | |
7072 | { | |
7073 | spa_t *spa = dmu_tx_pool(tx)->dp_spa; | |
7074 | int draid = (int)(uintptr_t)arg; | |
7075 | ||
7076 | for (int c = 0; c < draid; c++) | |
7077 | spa_feature_incr(spa, SPA_FEATURE_DRAID, tx); | |
7078 | } | |
7079 | ||
34dc7c2f BB |
7080 | /* |
7081 | * Add a device to a storage pool. | |
7082 | */ | |
7083 | int | |
7084 | spa_vdev_add(spa_t *spa, nvlist_t *nvroot) | |
7085 | { | |
b2255edc | 7086 | uint64_t txg, ndraid = 0; |
fb5f0bc8 | 7087 | int error; |
34dc7c2f BB |
7088 | vdev_t *rvd = spa->spa_root_vdev; |
7089 | vdev_t *vd, *tvd; | |
7090 | nvlist_t **spares, **l2cache; | |
7091 | uint_t nspares, nl2cache; | |
7092 | ||
572e2857 BB |
7093 | ASSERT(spa_writeable(spa)); |
7094 | ||
34dc7c2f BB |
7095 | txg = spa_vdev_enter(spa); |
7096 | ||
7097 | if ((error = spa_config_parse(spa, &vd, nvroot, NULL, 0, | |
7098 | VDEV_ALLOC_ADD)) != 0) | |
7099 | return (spa_vdev_exit(spa, NULL, txg, error)); | |
7100 | ||
b128c09f | 7101 | spa->spa_pending_vdev = vd; /* spa_vdev_exit() will clear this */ |
34dc7c2f BB |
7102 | |
7103 | if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, &spares, | |
7104 | &nspares) != 0) | |
7105 | nspares = 0; | |
7106 | ||
7107 | if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, &l2cache, | |
7108 | &nl2cache) != 0) | |
7109 | nl2cache = 0; | |
7110 | ||
b128c09f | 7111 | if (vd->vdev_children == 0 && nspares == 0 && nl2cache == 0) |
34dc7c2f | 7112 | return (spa_vdev_exit(spa, vd, txg, EINVAL)); |
34dc7c2f | 7113 | |
b128c09f | 7114 | if (vd->vdev_children != 0 && |
b2255edc | 7115 | (error = vdev_create(vd, txg, B_FALSE)) != 0) { |
b128c09f | 7116 | return (spa_vdev_exit(spa, vd, txg, error)); |
b2255edc BB |
7117 | } |
7118 | ||
7119 | /* | |
7120 | * The virtual dRAID spares must be added after vdev tree is created | |
bf169e9f | 7121 | * and the vdev guids are generated. The guid of their associated |
b2255edc BB |
7122 | * dRAID is stored in the config and used when opening the spare. |
7123 | */ | |
7124 | if ((error = vdev_draid_spare_create(nvroot, vd, &ndraid, | |
7125 | rvd->vdev_children)) == 0) { | |
7126 | if (ndraid > 0 && nvlist_lookup_nvlist_array(nvroot, | |
7127 | ZPOOL_CONFIG_SPARES, &spares, &nspares) != 0) | |
7128 | nspares = 0; | |
7129 | } else { | |
7130 | return (spa_vdev_exit(spa, vd, txg, error)); | |
7131 | } | |
34dc7c2f BB |
7132 | |
7133 | /* | |
7134 | * We must validate the spares and l2cache devices after checking the | |
7135 | * children. Otherwise, vdev_inuse() will blindly overwrite the spare. | |
7136 | */ | |
b128c09f | 7137 | if ((error = spa_validate_aux(spa, nvroot, txg, VDEV_ALLOC_ADD)) != 0) |
34dc7c2f | 7138 | return (spa_vdev_exit(spa, vd, txg, error)); |
34dc7c2f BB |
7139 | |
7140 | /* | |
a1d477c2 MA |
7141 | * If we are in the middle of a device removal, we can only add |
7142 | * devices which match the existing devices in the pool. | |
7143 | * If we are in the middle of a removal, or have some indirect | |
b2255edc | 7144 | * vdevs, we can not add raidz or dRAID top levels. |
34dc7c2f | 7145 | */ |
a1d477c2 MA |
7146 | if (spa->spa_vdev_removal != NULL || |
7147 | spa->spa_removing_phys.sr_prev_indirect_vdev != -1) { | |
7148 | for (int c = 0; c < vd->vdev_children; c++) { | |
7149 | tvd = vd->vdev_child[c]; | |
7150 | if (spa->spa_vdev_removal != NULL && | |
9e052db4 | 7151 | tvd->vdev_ashift != spa->spa_max_ashift) { |
a1d477c2 MA |
7152 | return (spa_vdev_exit(spa, vd, txg, EINVAL)); |
7153 | } | |
b2255edc BB |
7154 | /* Fail if top level vdev is raidz or a dRAID */ |
7155 | if (vdev_get_nparity(tvd) != 0) | |
a1d477c2 | 7156 | return (spa_vdev_exit(spa, vd, txg, EINVAL)); |
b2255edc | 7157 | |
a1d477c2 MA |
7158 | /* |
7159 | * Need the top level mirror to be | |
7160 | * a mirror of leaf vdevs only | |
7161 | */ | |
7162 | if (tvd->vdev_ops == &vdev_mirror_ops) { | |
7163 | for (uint64_t cid = 0; | |
7164 | cid < tvd->vdev_children; cid++) { | |
7165 | vdev_t *cvd = tvd->vdev_child[cid]; | |
7166 | if (!cvd->vdev_ops->vdev_op_leaf) { | |
7167 | return (spa_vdev_exit(spa, vd, | |
7168 | txg, EINVAL)); | |
7169 | } | |
7170 | } | |
7171 | } | |
7172 | } | |
7173 | } | |
7174 | ||
1c27024e | 7175 | for (int c = 0; c < vd->vdev_children; c++) { |
34dc7c2f BB |
7176 | tvd = vd->vdev_child[c]; |
7177 | vdev_remove_child(vd, tvd); | |
93e28d66 | 7178 | tvd->vdev_id = rvd->vdev_children; |
34dc7c2f BB |
7179 | vdev_add_child(rvd, tvd); |
7180 | vdev_config_dirty(tvd); | |
7181 | } | |
7182 | ||
7183 | if (nspares != 0) { | |
7184 | spa_set_aux_vdevs(&spa->spa_spares, spares, nspares, | |
7185 | ZPOOL_CONFIG_SPARES); | |
7186 | spa_load_spares(spa); | |
7187 | spa->spa_spares.sav_sync = B_TRUE; | |
7188 | } | |
7189 | ||
7190 | if (nl2cache != 0) { | |
7191 | spa_set_aux_vdevs(&spa->spa_l2cache, l2cache, nl2cache, | |
7192 | ZPOOL_CONFIG_L2CACHE); | |
7193 | spa_load_l2cache(spa); | |
7194 | spa->spa_l2cache.sav_sync = B_TRUE; | |
7195 | } | |
7196 | ||
b2255edc BB |
7197 | /* |
7198 | * We can't increment a feature while holding spa_vdev so we | |
7199 | * have to do it in a synctask. | |
7200 | */ | |
7201 | if (ndraid != 0) { | |
7202 | dmu_tx_t *tx; | |
7203 | ||
7204 | tx = dmu_tx_create_assigned(spa->spa_dsl_pool, txg); | |
7205 | dsl_sync_task_nowait(spa->spa_dsl_pool, spa_draid_feature_incr, | |
7206 | (void *)(uintptr_t)ndraid, tx); | |
7207 | dmu_tx_commit(tx); | |
7208 | } | |
7209 | ||
34dc7c2f BB |
7210 | /* |
7211 | * We have to be careful when adding new vdevs to an existing pool. | |
7212 | * If other threads start allocating from these vdevs before we | |
7213 | * sync the config cache, and we lose power, then upon reboot we may | |
7214 | * fail to open the pool because there are DVAs that the config cache | |
7215 | * can't translate. Therefore, we first add the vdevs without | |
7216 | * initializing metaslabs; sync the config cache (via spa_vdev_exit()); | |
7217 | * and then let spa_config_update() initialize the new metaslabs. | |
7218 | * | |
7219 | * spa_load() checks for added-but-not-initialized vdevs, so that | |
7220 | * if we lose power at any point in this sequence, the remaining | |
7221 | * steps will be completed the next time we load the pool. | |
7222 | */ | |
7223 | (void) spa_vdev_exit(spa, vd, txg, 0); | |
7224 | ||
7225 | mutex_enter(&spa_namespace_lock); | |
7226 | spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); | |
12fa0466 | 7227 | spa_event_notify(spa, NULL, NULL, ESC_ZFS_VDEV_ADD); |
34dc7c2f BB |
7228 | mutex_exit(&spa_namespace_lock); |
7229 | ||
7230 | return (0); | |
7231 | } | |
7232 | ||
7233 | /* | |
5caeef02 DB |
7234 | * Attach a device to a vdev specified by its guid. The vdev type can be |
7235 | * a mirror, a raidz, or a leaf device that is also a top-level (e.g. a | |
7236 | * single device). When the vdev is a single device, a mirror vdev will be | |
7237 | * automatically inserted. | |
34dc7c2f BB |
7238 | * |
7239 | * If 'replacing' is specified, the new device is intended to replace the | |
7240 | * existing device; in this case the two devices are made into their own | |
7241 | * mirror using the 'replacing' vdev, which is functionally identical to | |
7242 | * the mirror vdev (it actually reuses all the same ops) but has a few | |
7243 | * extra rules: you can't attach to it after it's been created, and upon | |
7244 | * completion of resilvering, the first disk (the one being replaced) | |
7245 | * is automatically detached. | |
9a49d3f3 BB |
7246 | * |
7247 | * If 'rebuild' is specified, then sequential reconstruction (a.ka. rebuild) | |
7248 | * should be performed instead of traditional healing reconstruction. From | |
7249 | * an administrators perspective these are both resilver operations. | |
34dc7c2f BB |
7250 | */ |
7251 | int | |
9a49d3f3 BB |
7252 | spa_vdev_attach(spa_t *spa, uint64_t guid, nvlist_t *nvroot, int replacing, |
7253 | int rebuild) | |
34dc7c2f | 7254 | { |
428870ff | 7255 | uint64_t txg, dtl_max_txg; |
9a49d3f3 | 7256 | vdev_t *rvd = spa->spa_root_vdev; |
34dc7c2f BB |
7257 | vdev_t *oldvd, *newvd, *newrootvd, *pvd, *tvd; |
7258 | vdev_ops_t *pvops; | |
b128c09f | 7259 | char *oldvdpath, *newvdpath; |
5caeef02 | 7260 | int newvd_isspare = B_FALSE; |
b128c09f | 7261 | int error; |
34dc7c2f | 7262 | |
572e2857 BB |
7263 | ASSERT(spa_writeable(spa)); |
7264 | ||
34dc7c2f BB |
7265 | txg = spa_vdev_enter(spa); |
7266 | ||
b128c09f | 7267 | oldvd = spa_lookup_by_guid(spa, guid, B_FALSE); |
34dc7c2f | 7268 | |
d2734cce SD |
7269 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); |
7270 | if (spa_feature_is_active(spa, SPA_FEATURE_POOL_CHECKPOINT)) { | |
7271 | error = (spa_has_checkpoint(spa)) ? | |
7272 | ZFS_ERR_CHECKPOINT_EXISTS : ZFS_ERR_DISCARDING_CHECKPOINT; | |
7273 | return (spa_vdev_exit(spa, NULL, txg, error)); | |
7274 | } | |
7275 | ||
9a49d3f3 BB |
7276 | if (rebuild) { |
7277 | if (!spa_feature_is_enabled(spa, SPA_FEATURE_DEVICE_REBUILD)) | |
7278 | return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
7279 | ||
9d618615 A |
7280 | if (dsl_scan_resilvering(spa_get_dsl(spa)) || |
7281 | dsl_scan_resilver_scheduled(spa_get_dsl(spa))) { | |
9a49d3f3 BB |
7282 | return (spa_vdev_exit(spa, NULL, txg, |
7283 | ZFS_ERR_RESILVER_IN_PROGRESS)); | |
9d618615 | 7284 | } |
9a49d3f3 BB |
7285 | } else { |
7286 | if (vdev_rebuild_active(rvd)) | |
7287 | return (spa_vdev_exit(spa, NULL, txg, | |
7288 | ZFS_ERR_REBUILD_IN_PROGRESS)); | |
7289 | } | |
7290 | ||
5caeef02 DB |
7291 | if (spa->spa_vdev_removal != NULL) { |
7292 | return (spa_vdev_exit(spa, NULL, txg, | |
7293 | ZFS_ERR_DEVRM_IN_PROGRESS)); | |
7294 | } | |
a1d477c2 | 7295 | |
34dc7c2f BB |
7296 | if (oldvd == NULL) |
7297 | return (spa_vdev_exit(spa, NULL, txg, ENODEV)); | |
7298 | ||
5caeef02 DB |
7299 | boolean_t raidz = oldvd->vdev_ops == &vdev_raidz_ops; |
7300 | ||
7301 | if (raidz) { | |
7302 | if (!spa_feature_is_enabled(spa, SPA_FEATURE_RAIDZ_EXPANSION)) | |
7303 | return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
7304 | ||
7305 | /* | |
7306 | * Can't expand a raidz while prior expand is in progress. | |
7307 | */ | |
7308 | if (spa->spa_raidz_expand != NULL) { | |
7309 | return (spa_vdev_exit(spa, NULL, txg, | |
7310 | ZFS_ERR_RAIDZ_EXPAND_IN_PROGRESS)); | |
7311 | } | |
7312 | } else if (!oldvd->vdev_ops->vdev_op_leaf) { | |
34dc7c2f | 7313 | return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); |
5caeef02 | 7314 | } |
34dc7c2f | 7315 | |
5caeef02 DB |
7316 | if (raidz) |
7317 | pvd = oldvd; | |
7318 | else | |
7319 | pvd = oldvd->vdev_parent; | |
34dc7c2f | 7320 | |
6a42939f RY |
7321 | if (spa_config_parse(spa, &newrootvd, nvroot, NULL, 0, |
7322 | VDEV_ALLOC_ATTACH) != 0) | |
34dc7c2f BB |
7323 | return (spa_vdev_exit(spa, NULL, txg, EINVAL)); |
7324 | ||
7325 | if (newrootvd->vdev_children != 1) | |
7326 | return (spa_vdev_exit(spa, newrootvd, txg, EINVAL)); | |
7327 | ||
7328 | newvd = newrootvd->vdev_child[0]; | |
7329 | ||
7330 | if (!newvd->vdev_ops->vdev_op_leaf) | |
7331 | return (spa_vdev_exit(spa, newrootvd, txg, EINVAL)); | |
7332 | ||
7333 | if ((error = vdev_create(newrootvd, txg, replacing)) != 0) | |
7334 | return (spa_vdev_exit(spa, newrootvd, txg, error)); | |
7335 | ||
7336 | /* | |
c23738c7 | 7337 | * log, dedup and special vdevs should not be replaced by spares. |
34dc7c2f | 7338 | */ |
c23738c7 AH |
7339 | if ((oldvd->vdev_top->vdev_alloc_bias != VDEV_BIAS_NONE || |
7340 | oldvd->vdev_top->vdev_islog) && newvd->vdev_isspare) { | |
34dc7c2f | 7341 | return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
c23738c7 | 7342 | } |
34dc7c2f | 7343 | |
b2255edc BB |
7344 | /* |
7345 | * A dRAID spare can only replace a child of its parent dRAID vdev. | |
7346 | */ | |
7347 | if (newvd->vdev_ops == &vdev_draid_spare_ops && | |
7348 | oldvd->vdev_top != vdev_draid_spare_get_parent(newvd)) { | |
7349 | return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
7350 | } | |
7351 | ||
9a49d3f3 BB |
7352 | if (rebuild) { |
7353 | /* | |
b2255edc | 7354 | * For rebuilds, the top vdev must support reconstruction |
9a49d3f3 | 7355 | * using only space maps. This means the only allowable |
b2255edc | 7356 | * vdevs types are the root vdev, a mirror, or dRAID. |
9a49d3f3 | 7357 | */ |
b2255edc BB |
7358 | tvd = pvd; |
7359 | if (pvd->vdev_top != NULL) | |
7360 | tvd = pvd->vdev_top; | |
7361 | ||
7362 | if (tvd->vdev_ops != &vdev_mirror_ops && | |
7363 | tvd->vdev_ops != &vdev_root_ops && | |
7364 | tvd->vdev_ops != &vdev_draid_ops) { | |
9a49d3f3 BB |
7365 | return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
7366 | } | |
7367 | } | |
7368 | ||
34dc7c2f BB |
7369 | if (!replacing) { |
7370 | /* | |
7bbd42ef DB |
7371 | * For attach, the only allowable parent is a mirror or |
7372 | * the root vdev. A raidz vdev can be attached to, but | |
7373 | * you cannot attach to a raidz child. | |
34dc7c2f BB |
7374 | */ |
7375 | if (pvd->vdev_ops != &vdev_mirror_ops && | |
7bbd42ef DB |
7376 | pvd->vdev_ops != &vdev_root_ops && |
7377 | !raidz) | |
34dc7c2f BB |
7378 | return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
7379 | ||
7380 | pvops = &vdev_mirror_ops; | |
7381 | } else { | |
7382 | /* | |
7383 | * Active hot spares can only be replaced by inactive hot | |
7384 | * spares. | |
7385 | */ | |
7386 | if (pvd->vdev_ops == &vdev_spare_ops && | |
572e2857 | 7387 | oldvd->vdev_isspare && |
34dc7c2f BB |
7388 | !spa_has_spare(spa, newvd->vdev_guid)) |
7389 | return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
7390 | ||
7391 | /* | |
7392 | * If the source is a hot spare, and the parent isn't already a | |
7393 | * spare, then we want to create a new hot spare. Otherwise, we | |
7394 | * want to create a replacing vdev. The user is not allowed to | |
7395 | * attach to a spared vdev child unless the 'isspare' state is | |
7396 | * the same (spare replaces spare, non-spare replaces | |
7397 | * non-spare). | |
7398 | */ | |
572e2857 BB |
7399 | if (pvd->vdev_ops == &vdev_replacing_ops && |
7400 | spa_version(spa) < SPA_VERSION_MULTI_REPLACE) { | |
34dc7c2f | 7401 | return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
572e2857 BB |
7402 | } else if (pvd->vdev_ops == &vdev_spare_ops && |
7403 | newvd->vdev_isspare != oldvd->vdev_isspare) { | |
34dc7c2f | 7404 | return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
572e2857 BB |
7405 | } |
7406 | ||
7407 | if (newvd->vdev_isspare) | |
34dc7c2f BB |
7408 | pvops = &vdev_spare_ops; |
7409 | else | |
7410 | pvops = &vdev_replacing_ops; | |
7411 | } | |
7412 | ||
7413 | /* | |
9babb374 | 7414 | * Make sure the new device is big enough. |
34dc7c2f | 7415 | */ |
5caeef02 DB |
7416 | vdev_t *min_vdev = raidz ? oldvd->vdev_child[0] : oldvd; |
7417 | if (newvd->vdev_asize < vdev_get_min_asize(min_vdev)) | |
34dc7c2f BB |
7418 | return (spa_vdev_exit(spa, newrootvd, txg, EOVERFLOW)); |
7419 | ||
7420 | /* | |
7421 | * The new device cannot have a higher alignment requirement | |
7422 | * than the top-level vdev. | |
7423 | */ | |
7424 | if (newvd->vdev_ashift > oldvd->vdev_top->vdev_ashift) | |
9a49d3f3 | 7425 | return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); |
34dc7c2f | 7426 | |
5caeef02 DB |
7427 | /* |
7428 | * RAIDZ-expansion-specific checks. | |
7429 | */ | |
7430 | if (raidz) { | |
7431 | if (vdev_raidz_attach_check(newvd) != 0) | |
7432 | return (spa_vdev_exit(spa, newrootvd, txg, ENOTSUP)); | |
7433 | ||
7434 | /* | |
7435 | * Fail early if a child is not healthy or being replaced | |
7436 | */ | |
7437 | for (int i = 0; i < oldvd->vdev_children; i++) { | |
7438 | if (vdev_is_dead(oldvd->vdev_child[i]) || | |
7439 | !oldvd->vdev_child[i]->vdev_ops->vdev_op_leaf) { | |
7440 | return (spa_vdev_exit(spa, newrootvd, txg, | |
7441 | ENXIO)); | |
7442 | } | |
7443 | /* Also fail if reserved boot area is in-use */ | |
7444 | if (vdev_check_boot_reserve(spa, oldvd->vdev_child[i]) | |
7445 | != 0) { | |
7446 | return (spa_vdev_exit(spa, newrootvd, txg, | |
7447 | EADDRINUSE)); | |
7448 | } | |
7449 | } | |
7450 | } | |
7451 | ||
7452 | if (raidz) { | |
7453 | /* | |
7454 | * Note: oldvdpath is freed by spa_strfree(), but | |
7455 | * kmem_asprintf() is freed by kmem_strfree(), so we have to | |
7456 | * move it to a spa_strdup-ed string. | |
7457 | */ | |
7458 | char *tmp = kmem_asprintf("raidz%u-%u", | |
7459 | (uint_t)vdev_get_nparity(oldvd), (uint_t)oldvd->vdev_id); | |
7460 | oldvdpath = spa_strdup(tmp); | |
7461 | kmem_strfree(tmp); | |
7462 | } else { | |
7463 | oldvdpath = spa_strdup(oldvd->vdev_path); | |
7464 | } | |
7465 | newvdpath = spa_strdup(newvd->vdev_path); | |
7466 | ||
34dc7c2f BB |
7467 | /* |
7468 | * If this is an in-place replacement, update oldvd's path and devid | |
7469 | * to make it distinguishable from newvd, and unopenable from now on. | |
7470 | */ | |
5caeef02 | 7471 | if (strcmp(oldvdpath, newvdpath) == 0) { |
34dc7c2f | 7472 | spa_strfree(oldvd->vdev_path); |
5caeef02 | 7473 | oldvd->vdev_path = kmem_alloc(strlen(newvdpath) + 5, |
79c76d5b | 7474 | KM_SLEEP); |
5caeef02 DB |
7475 | (void) sprintf(oldvd->vdev_path, "%s/old", |
7476 | newvdpath); | |
34dc7c2f BB |
7477 | if (oldvd->vdev_devid != NULL) { |
7478 | spa_strfree(oldvd->vdev_devid); | |
7479 | oldvd->vdev_devid = NULL; | |
7480 | } | |
5caeef02 DB |
7481 | spa_strfree(oldvdpath); |
7482 | oldvdpath = spa_strdup(oldvd->vdev_path); | |
34dc7c2f BB |
7483 | } |
7484 | ||
7485 | /* | |
7486 | * If the parent is not a mirror, or if we're replacing, insert the new | |
7487 | * mirror/replacing/spare vdev above oldvd. | |
7488 | */ | |
5caeef02 | 7489 | if (!raidz && pvd->vdev_ops != pvops) { |
34dc7c2f | 7490 | pvd = vdev_add_parent(oldvd, pvops); |
5caeef02 DB |
7491 | ASSERT(pvd->vdev_ops == pvops); |
7492 | ASSERT(oldvd->vdev_parent == pvd); | |
7493 | } | |
34dc7c2f BB |
7494 | |
7495 | ASSERT(pvd->vdev_top->vdev_parent == rvd); | |
34dc7c2f BB |
7496 | |
7497 | /* | |
7498 | * Extract the new device from its root and add it to pvd. | |
7499 | */ | |
7500 | vdev_remove_child(newrootvd, newvd); | |
7501 | newvd->vdev_id = pvd->vdev_children; | |
428870ff | 7502 | newvd->vdev_crtxg = oldvd->vdev_crtxg; |
34dc7c2f BB |
7503 | vdev_add_child(pvd, newvd); |
7504 | ||
6d82f98c IH |
7505 | /* |
7506 | * Reevaluate the parent vdev state. | |
7507 | */ | |
7508 | vdev_propagate_state(pvd); | |
7509 | ||
34dc7c2f BB |
7510 | tvd = newvd->vdev_top; |
7511 | ASSERT(pvd->vdev_top == tvd); | |
7512 | ASSERT(tvd->vdev_parent == rvd); | |
7513 | ||
7514 | vdev_config_dirty(tvd); | |
7515 | ||
7516 | /* | |
428870ff BB |
7517 | * Set newvd's DTL to [TXG_INITIAL, dtl_max_txg) so that we account |
7518 | * for any dmu_sync-ed blocks. It will propagate upward when | |
7519 | * spa_vdev_exit() calls vdev_dtl_reassess(). | |
34dc7c2f | 7520 | */ |
428870ff | 7521 | dtl_max_txg = txg + TXG_CONCURRENT_STATES; |
34dc7c2f | 7522 | |
5caeef02 DB |
7523 | if (raidz) { |
7524 | /* | |
7525 | * Wait for the youngest allocations and frees to sync, | |
7526 | * and then wait for the deferral of those frees to finish. | |
7527 | */ | |
7528 | spa_vdev_config_exit(spa, NULL, | |
7529 | txg + TXG_CONCURRENT_STATES + TXG_DEFER_SIZE, 0, FTAG); | |
34dc7c2f | 7530 | |
5caeef02 DB |
7531 | vdev_initialize_stop_all(tvd, VDEV_INITIALIZE_ACTIVE); |
7532 | vdev_trim_stop_all(tvd, VDEV_TRIM_ACTIVE); | |
7533 | vdev_autotrim_stop_wait(tvd); | |
9babb374 | 7534 | |
5caeef02 | 7535 | dtl_max_txg = spa_vdev_config_enter(spa); |
34dc7c2f | 7536 | |
5caeef02 | 7537 | tvd->vdev_rz_expanding = B_TRUE; |
34dc7c2f | 7538 | |
5caeef02 DB |
7539 | vdev_dirty_leaves(tvd, VDD_DTL, dtl_max_txg); |
7540 | vdev_config_dirty(tvd); | |
9a49d3f3 | 7541 | |
5caeef02 DB |
7542 | dmu_tx_t *tx = dmu_tx_create_assigned(spa->spa_dsl_pool, |
7543 | dtl_max_txg); | |
7544 | dsl_sync_task_nowait(spa->spa_dsl_pool, vdev_raidz_attach_sync, | |
7545 | newvd, tx); | |
7546 | dmu_tx_commit(tx); | |
9a49d3f3 | 7547 | } else { |
5caeef02 DB |
7548 | vdev_dtl_dirty(newvd, DTL_MISSING, TXG_INITIAL, |
7549 | dtl_max_txg - TXG_INITIAL); | |
7550 | ||
7551 | if (newvd->vdev_isspare) { | |
7552 | spa_spare_activate(newvd); | |
7553 | spa_event_notify(spa, newvd, NULL, ESC_ZFS_VDEV_SPARE); | |
7554 | } | |
7555 | ||
7556 | newvd_isspare = newvd->vdev_isspare; | |
7557 | ||
7558 | /* | |
7559 | * Mark newvd's DTL dirty in this txg. | |
7560 | */ | |
7561 | vdev_dirty(tvd, VDD_DTL, newvd, txg); | |
9a49d3f3 | 7562 | |
5caeef02 DB |
7563 | /* |
7564 | * Schedule the resilver or rebuild to restart in the future. | |
7565 | * We do this to ensure that dmu_sync-ed blocks have been | |
7566 | * stitched into the respective datasets. | |
7567 | */ | |
7568 | if (rebuild) { | |
7569 | newvd->vdev_rebuild_txg = txg; | |
7570 | ||
7571 | vdev_rebuild(tvd); | |
9a49d3f3 | 7572 | } else { |
5caeef02 DB |
7573 | newvd->vdev_resilver_txg = txg; |
7574 | ||
7575 | if (dsl_scan_resilvering(spa_get_dsl(spa)) && | |
7576 | spa_feature_is_enabled(spa, | |
7577 | SPA_FEATURE_RESILVER_DEFER)) { | |
7578 | vdev_defer_resilver(newvd); | |
7579 | } else { | |
7580 | dsl_scan_restart_resilver(spa->spa_dsl_pool, | |
7581 | dtl_max_txg); | |
7582 | } | |
9a49d3f3 BB |
7583 | } |
7584 | } | |
428870ff | 7585 | |
fb390aaf | 7586 | if (spa->spa_bootfs) |
12fa0466 | 7587 | spa_event_notify(spa, newvd, NULL, ESC_ZFS_BOOTFS_VDEV_ATTACH); |
fb390aaf | 7588 | |
12fa0466 | 7589 | spa_event_notify(spa, newvd, NULL, ESC_ZFS_VDEV_ATTACH); |
fb390aaf | 7590 | |
428870ff BB |
7591 | /* |
7592 | * Commit the config | |
7593 | */ | |
7594 | (void) spa_vdev_exit(spa, newrootvd, dtl_max_txg, 0); | |
34dc7c2f | 7595 | |
6f1ffb06 | 7596 | spa_history_log_internal(spa, "vdev attach", NULL, |
428870ff | 7597 | "%s vdev=%s %s vdev=%s", |
45d1cae3 BB |
7598 | replacing && newvd_isspare ? "spare in" : |
7599 | replacing ? "replace" : "attach", newvdpath, | |
7600 | replacing ? "for" : "to", oldvdpath); | |
b128c09f BB |
7601 | |
7602 | spa_strfree(oldvdpath); | |
7603 | spa_strfree(newvdpath); | |
7604 | ||
34dc7c2f BB |
7605 | return (0); |
7606 | } | |
7607 | ||
7608 | /* | |
7609 | * Detach a device from a mirror or replacing vdev. | |
d3cc8b15 | 7610 | * |
34dc7c2f | 7611 | * If 'replace_done' is specified, only detach if the parent |
719534ca | 7612 | * is a replacing or a spare vdev. |
34dc7c2f BB |
7613 | */ |
7614 | int | |
fb5f0bc8 | 7615 | spa_vdev_detach(spa_t *spa, uint64_t guid, uint64_t pguid, int replace_done) |
34dc7c2f BB |
7616 | { |
7617 | uint64_t txg; | |
fb5f0bc8 | 7618 | int error; |
2a8ba608 | 7619 | vdev_t *rvd __maybe_unused = spa->spa_root_vdev; |
34dc7c2f BB |
7620 | vdev_t *vd, *pvd, *cvd, *tvd; |
7621 | boolean_t unspare = B_FALSE; | |
d4ed6673 | 7622 | uint64_t unspare_guid = 0; |
428870ff | 7623 | char *vdpath; |
1c27024e | 7624 | |
572e2857 BB |
7625 | ASSERT(spa_writeable(spa)); |
7626 | ||
9a49d3f3 | 7627 | txg = spa_vdev_detach_enter(spa, guid); |
34dc7c2f | 7628 | |
b128c09f | 7629 | vd = spa_lookup_by_guid(spa, guid, B_FALSE); |
34dc7c2f | 7630 | |
d2734cce SD |
7631 | /* |
7632 | * Besides being called directly from the userland through the | |
7633 | * ioctl interface, spa_vdev_detach() can be potentially called | |
7634 | * at the end of spa_vdev_resilver_done(). | |
7635 | * | |
7636 | * In the regular case, when we have a checkpoint this shouldn't | |
7637 | * happen as we never empty the DTLs of a vdev during the scrub | |
7638 | * [see comment in dsl_scan_done()]. Thus spa_vdev_resilvering_done() | |
7639 | * should never get here when we have a checkpoint. | |
7640 | * | |
7641 | * That said, even in a case when we checkpoint the pool exactly | |
7642 | * as spa_vdev_resilver_done() calls this function everything | |
7643 | * should be fine as the resilver will return right away. | |
7644 | */ | |
7645 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); | |
7646 | if (spa_feature_is_active(spa, SPA_FEATURE_POOL_CHECKPOINT)) { | |
7647 | error = (spa_has_checkpoint(spa)) ? | |
7648 | ZFS_ERR_CHECKPOINT_EXISTS : ZFS_ERR_DISCARDING_CHECKPOINT; | |
7649 | return (spa_vdev_exit(spa, NULL, txg, error)); | |
7650 | } | |
7651 | ||
34dc7c2f BB |
7652 | if (vd == NULL) |
7653 | return (spa_vdev_exit(spa, NULL, txg, ENODEV)); | |
7654 | ||
7655 | if (!vd->vdev_ops->vdev_op_leaf) | |
7656 | return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
7657 | ||
7658 | pvd = vd->vdev_parent; | |
7659 | ||
fb5f0bc8 BB |
7660 | /* |
7661 | * If the parent/child relationship is not as expected, don't do it. | |
7662 | * Consider M(A,R(B,C)) -- that is, a mirror of A with a replacing | |
7663 | * vdev that's replacing B with C. The user's intent in replacing | |
7664 | * is to go from M(A,B) to M(A,C). If the user decides to cancel | |
7665 | * the replace by detaching C, the expected behavior is to end up | |
7666 | * M(A,B). But suppose that right after deciding to detach C, | |
7667 | * the replacement of B completes. We would have M(A,C), and then | |
7668 | * ask to detach C, which would leave us with just A -- not what | |
7669 | * the user wanted. To prevent this, we make sure that the | |
7670 | * parent/child relationship hasn't changed -- in this example, | |
7671 | * that C's parent is still the replacing vdev R. | |
7672 | */ | |
7673 | if (pvd->vdev_guid != pguid && pguid != 0) | |
7674 | return (spa_vdev_exit(spa, NULL, txg, EBUSY)); | |
7675 | ||
34dc7c2f | 7676 | /* |
572e2857 | 7677 | * Only 'replacing' or 'spare' vdevs can be replaced. |
34dc7c2f | 7678 | */ |
572e2857 BB |
7679 | if (replace_done && pvd->vdev_ops != &vdev_replacing_ops && |
7680 | pvd->vdev_ops != &vdev_spare_ops) | |
7681 | return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
34dc7c2f BB |
7682 | |
7683 | ASSERT(pvd->vdev_ops != &vdev_spare_ops || | |
7684 | spa_version(spa) >= SPA_VERSION_SPARES); | |
7685 | ||
7686 | /* | |
7687 | * Only mirror, replacing, and spare vdevs support detach. | |
7688 | */ | |
7689 | if (pvd->vdev_ops != &vdev_replacing_ops && | |
7690 | pvd->vdev_ops != &vdev_mirror_ops && | |
7691 | pvd->vdev_ops != &vdev_spare_ops) | |
7692 | return (spa_vdev_exit(spa, NULL, txg, ENOTSUP)); | |
7693 | ||
7694 | /* | |
fb5f0bc8 BB |
7695 | * If this device has the only valid copy of some data, |
7696 | * we cannot safely detach it. | |
34dc7c2f | 7697 | */ |
fb5f0bc8 | 7698 | if (vdev_dtl_required(vd)) |
34dc7c2f BB |
7699 | return (spa_vdev_exit(spa, NULL, txg, EBUSY)); |
7700 | ||
fb5f0bc8 | 7701 | ASSERT(pvd->vdev_children >= 2); |
34dc7c2f | 7702 | |
b128c09f BB |
7703 | /* |
7704 | * If we are detaching the second disk from a replacing vdev, then | |
7705 | * check to see if we changed the original vdev's path to have "/old" | |
7706 | * at the end in spa_vdev_attach(). If so, undo that change now. | |
7707 | */ | |
572e2857 BB |
7708 | if (pvd->vdev_ops == &vdev_replacing_ops && vd->vdev_id > 0 && |
7709 | vd->vdev_path != NULL) { | |
7710 | size_t len = strlen(vd->vdev_path); | |
7711 | ||
1c27024e | 7712 | for (int c = 0; c < pvd->vdev_children; c++) { |
572e2857 BB |
7713 | cvd = pvd->vdev_child[c]; |
7714 | ||
7715 | if (cvd == vd || cvd->vdev_path == NULL) | |
7716 | continue; | |
7717 | ||
7718 | if (strncmp(cvd->vdev_path, vd->vdev_path, len) == 0 && | |
7719 | strcmp(cvd->vdev_path + len, "/old") == 0) { | |
7720 | spa_strfree(cvd->vdev_path); | |
7721 | cvd->vdev_path = spa_strdup(vd->vdev_path); | |
7722 | break; | |
7723 | } | |
b128c09f BB |
7724 | } |
7725 | } | |
7726 | ||
34dc7c2f | 7727 | /* |
b2255edc BB |
7728 | * If we are detaching the original disk from a normal spare, then it |
7729 | * implies that the spare should become a real disk, and be removed | |
7730 | * from the active spare list for the pool. dRAID spares on the | |
7731 | * other hand are coupled to the pool and thus should never be removed | |
7732 | * from the spares list. | |
34dc7c2f | 7733 | */ |
b2255edc BB |
7734 | if (pvd->vdev_ops == &vdev_spare_ops && vd->vdev_id == 0) { |
7735 | vdev_t *last_cvd = pvd->vdev_child[pvd->vdev_children - 1]; | |
7736 | ||
7737 | if (last_cvd->vdev_isspare && | |
7738 | last_cvd->vdev_ops != &vdev_draid_spare_ops) { | |
7739 | unspare = B_TRUE; | |
7740 | } | |
7741 | } | |
34dc7c2f BB |
7742 | |
7743 | /* | |
7744 | * Erase the disk labels so the disk can be used for other things. | |
7745 | * This must be done after all other error cases are handled, | |
7746 | * but before we disembowel vd (so we can still do I/O to it). | |
7747 | * But if we can't do it, don't treat the error as fatal -- | |
7748 | * it may be that the unwritability of the disk is the reason | |
7749 | * it's being detached! | |
7750 | */ | |
6a42939f | 7751 | (void) vdev_label_init(vd, 0, VDEV_LABEL_REMOVE); |
34dc7c2f BB |
7752 | |
7753 | /* | |
7754 | * Remove vd from its parent and compact the parent's children. | |
7755 | */ | |
7756 | vdev_remove_child(pvd, vd); | |
7757 | vdev_compact_children(pvd); | |
7758 | ||
7759 | /* | |
7760 | * Remember one of the remaining children so we can get tvd below. | |
7761 | */ | |
572e2857 | 7762 | cvd = pvd->vdev_child[pvd->vdev_children - 1]; |
34dc7c2f BB |
7763 | |
7764 | /* | |
7765 | * If we need to remove the remaining child from the list of hot spares, | |
fb5f0bc8 BB |
7766 | * do it now, marking the vdev as no longer a spare in the process. |
7767 | * We must do this before vdev_remove_parent(), because that can | |
7768 | * change the GUID if it creates a new toplevel GUID. For a similar | |
7769 | * reason, we must remove the spare now, in the same txg as the detach; | |
7770 | * otherwise someone could attach a new sibling, change the GUID, and | |
7771 | * the subsequent attempt to spa_vdev_remove(unspare_guid) would fail. | |
34dc7c2f BB |
7772 | */ |
7773 | if (unspare) { | |
7774 | ASSERT(cvd->vdev_isspare); | |
7775 | spa_spare_remove(cvd); | |
7776 | unspare_guid = cvd->vdev_guid; | |
fb5f0bc8 | 7777 | (void) spa_vdev_remove(spa, unspare_guid, B_TRUE); |
572e2857 | 7778 | cvd->vdev_unspare = B_TRUE; |
34dc7c2f BB |
7779 | } |
7780 | ||
428870ff BB |
7781 | /* |
7782 | * If the parent mirror/replacing vdev only has one child, | |
7783 | * the parent is no longer needed. Remove it from the tree. | |
7784 | */ | |
572e2857 BB |
7785 | if (pvd->vdev_children == 1) { |
7786 | if (pvd->vdev_ops == &vdev_spare_ops) | |
7787 | cvd->vdev_unspare = B_FALSE; | |
428870ff | 7788 | vdev_remove_parent(cvd); |
572e2857 BB |
7789 | } |
7790 | ||
428870ff BB |
7791 | /* |
7792 | * We don't set tvd until now because the parent we just removed | |
7793 | * may have been the previous top-level vdev. | |
7794 | */ | |
7795 | tvd = cvd->vdev_top; | |
7796 | ASSERT(tvd->vdev_parent == rvd); | |
7797 | ||
7798 | /* | |
7799 | * Reevaluate the parent vdev state. | |
7800 | */ | |
7801 | vdev_propagate_state(cvd); | |
7802 | ||
7803 | /* | |
7804 | * If the 'autoexpand' property is set on the pool then automatically | |
7805 | * try to expand the size of the pool. For example if the device we | |
7806 | * just detached was smaller than the others, it may be possible to | |
7807 | * add metaslabs (i.e. grow the pool). We need to reopen the vdev | |
7808 | * first so that we can obtain the updated sizes of the leaf vdevs. | |
7809 | */ | |
7810 | if (spa->spa_autoexpand) { | |
7811 | vdev_reopen(tvd); | |
7812 | vdev_expand(tvd, txg); | |
7813 | } | |
7814 | ||
7815 | vdev_config_dirty(tvd); | |
7816 | ||
7817 | /* | |
7818 | * Mark vd's DTL as dirty in this txg. vdev_dtl_sync() will see that | |
7819 | * vd->vdev_detached is set and free vd's DTL object in syncing context. | |
7820 | * But first make sure we're not on any *other* txg's DTL list, to | |
7821 | * prevent vd from being accessed after it's freed. | |
7822 | */ | |
b6ca6193 | 7823 | vdpath = spa_strdup(vd->vdev_path ? vd->vdev_path : "none"); |
1c27024e | 7824 | for (int t = 0; t < TXG_SIZE; t++) |
428870ff BB |
7825 | (void) txg_list_remove_this(&tvd->vdev_dtl_list, vd, t); |
7826 | vd->vdev_detached = B_TRUE; | |
7827 | vdev_dirty(tvd, VDD_DTL, vd, txg); | |
7828 | ||
12fa0466 | 7829 | spa_event_notify(spa, vd, NULL, ESC_ZFS_VDEV_REMOVE); |
e60e158e | 7830 | spa_notify_waiters(spa); |
428870ff | 7831 | |
572e2857 BB |
7832 | /* hang on to the spa before we release the lock */ |
7833 | spa_open_ref(spa, FTAG); | |
7834 | ||
428870ff BB |
7835 | error = spa_vdev_exit(spa, vd, txg, 0); |
7836 | ||
6f1ffb06 | 7837 | spa_history_log_internal(spa, "detach", NULL, |
428870ff BB |
7838 | "vdev=%s", vdpath); |
7839 | spa_strfree(vdpath); | |
7840 | ||
7841 | /* | |
7842 | * If this was the removal of the original device in a hot spare vdev, | |
7843 | * then we want to go through and remove the device from the hot spare | |
7844 | * list of every other pool. | |
7845 | */ | |
7846 | if (unspare) { | |
572e2857 BB |
7847 | spa_t *altspa = NULL; |
7848 | ||
428870ff | 7849 | mutex_enter(&spa_namespace_lock); |
572e2857 BB |
7850 | while ((altspa = spa_next(altspa)) != NULL) { |
7851 | if (altspa->spa_state != POOL_STATE_ACTIVE || | |
7852 | altspa == spa) | |
428870ff | 7853 | continue; |
572e2857 BB |
7854 | |
7855 | spa_open_ref(altspa, FTAG); | |
428870ff | 7856 | mutex_exit(&spa_namespace_lock); |
572e2857 | 7857 | (void) spa_vdev_remove(altspa, unspare_guid, B_TRUE); |
428870ff | 7858 | mutex_enter(&spa_namespace_lock); |
572e2857 | 7859 | spa_close(altspa, FTAG); |
428870ff BB |
7860 | } |
7861 | mutex_exit(&spa_namespace_lock); | |
572e2857 BB |
7862 | |
7863 | /* search the rest of the vdevs for spares to remove */ | |
7864 | spa_vdev_resilver_done(spa); | |
428870ff BB |
7865 | } |
7866 | ||
572e2857 BB |
7867 | /* all done with the spa; OK to release */ |
7868 | mutex_enter(&spa_namespace_lock); | |
7869 | spa_close(spa, FTAG); | |
7870 | mutex_exit(&spa_namespace_lock); | |
7871 | ||
428870ff BB |
7872 | return (error); |
7873 | } | |
7874 | ||
c10d37dd GW |
7875 | static int |
7876 | spa_vdev_initialize_impl(spa_t *spa, uint64_t guid, uint64_t cmd_type, | |
7877 | list_t *vd_list) | |
619f0976 | 7878 | { |
c10d37dd GW |
7879 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); |
7880 | ||
619f0976 GW |
7881 | spa_config_enter(spa, SCL_CONFIG | SCL_STATE, FTAG, RW_READER); |
7882 | ||
7883 | /* Look up vdev and ensure it's a leaf. */ | |
7884 | vdev_t *vd = spa_lookup_by_guid(spa, guid, B_FALSE); | |
7885 | if (vd == NULL || vd->vdev_detached) { | |
7886 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
619f0976 GW |
7887 | return (SET_ERROR(ENODEV)); |
7888 | } else if (!vd->vdev_ops->vdev_op_leaf || !vdev_is_concrete(vd)) { | |
7889 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
619f0976 GW |
7890 | return (SET_ERROR(EINVAL)); |
7891 | } else if (!vdev_writeable(vd)) { | |
7892 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
619f0976 GW |
7893 | return (SET_ERROR(EROFS)); |
7894 | } | |
7895 | mutex_enter(&vd->vdev_initialize_lock); | |
7896 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
7897 | ||
7898 | /* | |
7899 | * When we activate an initialize action we check to see | |
7900 | * if the vdev_initialize_thread is NULL. We do this instead | |
7901 | * of using the vdev_initialize_state since there might be | |
7902 | * a previous initialization process which has completed but | |
7903 | * the thread is not exited. | |
7904 | */ | |
1b939560 | 7905 | if (cmd_type == POOL_INITIALIZE_START && |
619f0976 | 7906 | (vd->vdev_initialize_thread != NULL || |
5caeef02 | 7907 | vd->vdev_top->vdev_removing || vd->vdev_top->vdev_rz_expanding)) { |
619f0976 | 7908 | mutex_exit(&vd->vdev_initialize_lock); |
619f0976 GW |
7909 | return (SET_ERROR(EBUSY)); |
7910 | } else if (cmd_type == POOL_INITIALIZE_CANCEL && | |
7911 | (vd->vdev_initialize_state != VDEV_INITIALIZE_ACTIVE && | |
7912 | vd->vdev_initialize_state != VDEV_INITIALIZE_SUSPENDED)) { | |
7913 | mutex_exit(&vd->vdev_initialize_lock); | |
619f0976 GW |
7914 | return (SET_ERROR(ESRCH)); |
7915 | } else if (cmd_type == POOL_INITIALIZE_SUSPEND && | |
7916 | vd->vdev_initialize_state != VDEV_INITIALIZE_ACTIVE) { | |
7917 | mutex_exit(&vd->vdev_initialize_lock); | |
619f0976 | 7918 | return (SET_ERROR(ESRCH)); |
e34e15ed BB |
7919 | } else if (cmd_type == POOL_INITIALIZE_UNINIT && |
7920 | vd->vdev_initialize_thread != NULL) { | |
7921 | mutex_exit(&vd->vdev_initialize_lock); | |
7922 | return (SET_ERROR(EBUSY)); | |
619f0976 GW |
7923 | } |
7924 | ||
7925 | switch (cmd_type) { | |
1b939560 | 7926 | case POOL_INITIALIZE_START: |
619f0976 GW |
7927 | vdev_initialize(vd); |
7928 | break; | |
7929 | case POOL_INITIALIZE_CANCEL: | |
c10d37dd | 7930 | vdev_initialize_stop(vd, VDEV_INITIALIZE_CANCELED, vd_list); |
619f0976 GW |
7931 | break; |
7932 | case POOL_INITIALIZE_SUSPEND: | |
c10d37dd | 7933 | vdev_initialize_stop(vd, VDEV_INITIALIZE_SUSPENDED, vd_list); |
619f0976 | 7934 | break; |
e34e15ed BB |
7935 | case POOL_INITIALIZE_UNINIT: |
7936 | vdev_uninitialize(vd); | |
7937 | break; | |
619f0976 GW |
7938 | default: |
7939 | panic("invalid cmd_type %llu", (unsigned long long)cmd_type); | |
7940 | } | |
7941 | mutex_exit(&vd->vdev_initialize_lock); | |
7942 | ||
c10d37dd GW |
7943 | return (0); |
7944 | } | |
7945 | ||
7946 | int | |
7947 | spa_vdev_initialize(spa_t *spa, nvlist_t *nv, uint64_t cmd_type, | |
7948 | nvlist_t *vdev_errlist) | |
7949 | { | |
7950 | int total_errors = 0; | |
7951 | list_t vd_list; | |
7952 | ||
7953 | list_create(&vd_list, sizeof (vdev_t), | |
7954 | offsetof(vdev_t, vdev_initialize_node)); | |
7955 | ||
7956 | /* | |
7957 | * We hold the namespace lock through the whole function | |
7958 | * to prevent any changes to the pool while we're starting or | |
7959 | * stopping initialization. The config and state locks are held so that | |
7960 | * we can properly assess the vdev state before we commit to | |
7961 | * the initializing operation. | |
7962 | */ | |
7963 | mutex_enter(&spa_namespace_lock); | |
7964 | ||
7965 | for (nvpair_t *pair = nvlist_next_nvpair(nv, NULL); | |
7966 | pair != NULL; pair = nvlist_next_nvpair(nv, pair)) { | |
7967 | uint64_t vdev_guid = fnvpair_value_uint64(pair); | |
7968 | ||
7969 | int error = spa_vdev_initialize_impl(spa, vdev_guid, cmd_type, | |
7970 | &vd_list); | |
7971 | if (error != 0) { | |
7972 | char guid_as_str[MAXNAMELEN]; | |
7973 | ||
7974 | (void) snprintf(guid_as_str, sizeof (guid_as_str), | |
7975 | "%llu", (unsigned long long)vdev_guid); | |
7976 | fnvlist_add_int64(vdev_errlist, guid_as_str, error); | |
7977 | total_errors++; | |
7978 | } | |
7979 | } | |
7980 | ||
7981 | /* Wait for all initialize threads to stop. */ | |
7982 | vdev_initialize_stop_wait(spa, &vd_list); | |
7983 | ||
619f0976 GW |
7984 | /* Sync out the initializing state */ |
7985 | txg_wait_synced(spa->spa_dsl_pool, 0); | |
7986 | mutex_exit(&spa_namespace_lock); | |
7987 | ||
c10d37dd | 7988 | list_destroy(&vd_list); |
619f0976 | 7989 | |
c10d37dd GW |
7990 | return (total_errors); |
7991 | } | |
619f0976 | 7992 | |
1b939560 BB |
7993 | static int |
7994 | spa_vdev_trim_impl(spa_t *spa, uint64_t guid, uint64_t cmd_type, | |
7995 | uint64_t rate, boolean_t partial, boolean_t secure, list_t *vd_list) | |
7996 | { | |
7997 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); | |
7998 | ||
7999 | spa_config_enter(spa, SCL_CONFIG | SCL_STATE, FTAG, RW_READER); | |
8000 | ||
8001 | /* Look up vdev and ensure it's a leaf. */ | |
8002 | vdev_t *vd = spa_lookup_by_guid(spa, guid, B_FALSE); | |
8003 | if (vd == NULL || vd->vdev_detached) { | |
8004 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
8005 | return (SET_ERROR(ENODEV)); | |
8006 | } else if (!vd->vdev_ops->vdev_op_leaf || !vdev_is_concrete(vd)) { | |
8007 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
8008 | return (SET_ERROR(EINVAL)); | |
8009 | } else if (!vdev_writeable(vd)) { | |
8010 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
8011 | return (SET_ERROR(EROFS)); | |
8012 | } else if (!vd->vdev_has_trim) { | |
8013 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
8014 | return (SET_ERROR(EOPNOTSUPP)); | |
8015 | } else if (secure && !vd->vdev_has_securetrim) { | |
8016 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
8017 | return (SET_ERROR(EOPNOTSUPP)); | |
8018 | } | |
8019 | mutex_enter(&vd->vdev_trim_lock); | |
8020 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
8021 | ||
8022 | /* | |
8023 | * When we activate a TRIM action we check to see if the | |
8024 | * vdev_trim_thread is NULL. We do this instead of using the | |
8025 | * vdev_trim_state since there might be a previous TRIM process | |
8026 | * which has completed but the thread is not exited. | |
8027 | */ | |
8028 | if (cmd_type == POOL_TRIM_START && | |
5caeef02 DB |
8029 | (vd->vdev_trim_thread != NULL || vd->vdev_top->vdev_removing || |
8030 | vd->vdev_top->vdev_rz_expanding)) { | |
1b939560 BB |
8031 | mutex_exit(&vd->vdev_trim_lock); |
8032 | return (SET_ERROR(EBUSY)); | |
8033 | } else if (cmd_type == POOL_TRIM_CANCEL && | |
8034 | (vd->vdev_trim_state != VDEV_TRIM_ACTIVE && | |
8035 | vd->vdev_trim_state != VDEV_TRIM_SUSPENDED)) { | |
8036 | mutex_exit(&vd->vdev_trim_lock); | |
8037 | return (SET_ERROR(ESRCH)); | |
8038 | } else if (cmd_type == POOL_TRIM_SUSPEND && | |
8039 | vd->vdev_trim_state != VDEV_TRIM_ACTIVE) { | |
8040 | mutex_exit(&vd->vdev_trim_lock); | |
8041 | return (SET_ERROR(ESRCH)); | |
8042 | } | |
8043 | ||
8044 | switch (cmd_type) { | |
8045 | case POOL_TRIM_START: | |
8046 | vdev_trim(vd, rate, partial, secure); | |
8047 | break; | |
8048 | case POOL_TRIM_CANCEL: | |
8049 | vdev_trim_stop(vd, VDEV_TRIM_CANCELED, vd_list); | |
8050 | break; | |
8051 | case POOL_TRIM_SUSPEND: | |
8052 | vdev_trim_stop(vd, VDEV_TRIM_SUSPENDED, vd_list); | |
8053 | break; | |
8054 | default: | |
8055 | panic("invalid cmd_type %llu", (unsigned long long)cmd_type); | |
8056 | } | |
8057 | mutex_exit(&vd->vdev_trim_lock); | |
8058 | ||
8059 | return (0); | |
8060 | } | |
8061 | ||
8062 | /* | |
8063 | * Initiates a manual TRIM for the requested vdevs. This kicks off individual | |
8064 | * TRIM threads for each child vdev. These threads pass over all of the free | |
8065 | * space in the vdev's metaslabs and issues TRIM commands for that space. | |
8066 | */ | |
8067 | int | |
8068 | spa_vdev_trim(spa_t *spa, nvlist_t *nv, uint64_t cmd_type, uint64_t rate, | |
8069 | boolean_t partial, boolean_t secure, nvlist_t *vdev_errlist) | |
8070 | { | |
8071 | int total_errors = 0; | |
8072 | list_t vd_list; | |
8073 | ||
8074 | list_create(&vd_list, sizeof (vdev_t), | |
8075 | offsetof(vdev_t, vdev_trim_node)); | |
8076 | ||
8077 | /* | |
8078 | * We hold the namespace lock through the whole function | |
8079 | * to prevent any changes to the pool while we're starting or | |
8080 | * stopping TRIM. The config and state locks are held so that | |
8081 | * we can properly assess the vdev state before we commit to | |
8082 | * the TRIM operation. | |
8083 | */ | |
8084 | mutex_enter(&spa_namespace_lock); | |
8085 | ||
8086 | for (nvpair_t *pair = nvlist_next_nvpair(nv, NULL); | |
8087 | pair != NULL; pair = nvlist_next_nvpair(nv, pair)) { | |
8088 | uint64_t vdev_guid = fnvpair_value_uint64(pair); | |
8089 | ||
8090 | int error = spa_vdev_trim_impl(spa, vdev_guid, cmd_type, | |
8091 | rate, partial, secure, &vd_list); | |
8092 | if (error != 0) { | |
8093 | char guid_as_str[MAXNAMELEN]; | |
8094 | ||
8095 | (void) snprintf(guid_as_str, sizeof (guid_as_str), | |
8096 | "%llu", (unsigned long long)vdev_guid); | |
8097 | fnvlist_add_int64(vdev_errlist, guid_as_str, error); | |
8098 | total_errors++; | |
8099 | } | |
8100 | } | |
8101 | ||
8102 | /* Wait for all TRIM threads to stop. */ | |
8103 | vdev_trim_stop_wait(spa, &vd_list); | |
8104 | ||
8105 | /* Sync out the TRIM state */ | |
8106 | txg_wait_synced(spa->spa_dsl_pool, 0); | |
8107 | mutex_exit(&spa_namespace_lock); | |
8108 | ||
8109 | list_destroy(&vd_list); | |
8110 | ||
8111 | return (total_errors); | |
8112 | } | |
8113 | ||
428870ff BB |
8114 | /* |
8115 | * Split a set of devices from their mirrors, and create a new pool from them. | |
8116 | */ | |
8117 | int | |
a926aab9 | 8118 | spa_vdev_split_mirror(spa_t *spa, const char *newname, nvlist_t *config, |
428870ff BB |
8119 | nvlist_t *props, boolean_t exp) |
8120 | { | |
8121 | int error = 0; | |
8122 | uint64_t txg, *glist; | |
8123 | spa_t *newspa; | |
8124 | uint_t c, children, lastlog; | |
8125 | nvlist_t **child, *nvl, *tmp; | |
8126 | dmu_tx_t *tx; | |
d1807f16 | 8127 | const char *altroot = NULL; |
428870ff BB |
8128 | vdev_t *rvd, **vml = NULL; /* vdev modify list */ |
8129 | boolean_t activate_slog; | |
8130 | ||
572e2857 | 8131 | ASSERT(spa_writeable(spa)); |
428870ff BB |
8132 | |
8133 | txg = spa_vdev_enter(spa); | |
8134 | ||
d2734cce SD |
8135 | ASSERT(MUTEX_HELD(&spa_namespace_lock)); |
8136 | if (spa_feature_is_active(spa, SPA_FEATURE_POOL_CHECKPOINT)) { | |
8137 | error = (spa_has_checkpoint(spa)) ? | |
8138 | ZFS_ERR_CHECKPOINT_EXISTS : ZFS_ERR_DISCARDING_CHECKPOINT; | |
8139 | return (spa_vdev_exit(spa, NULL, txg, error)); | |
8140 | } | |
8141 | ||
428870ff BB |
8142 | /* clear the log and flush everything up to now */ |
8143 | activate_slog = spa_passivate_log(spa); | |
8144 | (void) spa_vdev_config_exit(spa, NULL, txg, 0, FTAG); | |
a1d477c2 | 8145 | error = spa_reset_logs(spa); |
428870ff BB |
8146 | txg = spa_vdev_config_enter(spa); |
8147 | ||
8148 | if (activate_slog) | |
8149 | spa_activate_log(spa); | |
8150 | ||
8151 | if (error != 0) | |
8152 | return (spa_vdev_exit(spa, NULL, txg, error)); | |
8153 | ||
8154 | /* check new spa name before going any further */ | |
8155 | if (spa_lookup(newname) != NULL) | |
8156 | return (spa_vdev_exit(spa, NULL, txg, EEXIST)); | |
8157 | ||
8158 | /* | |
8159 | * scan through all the children to ensure they're all mirrors | |
8160 | */ | |
8161 | if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &nvl) != 0 || | |
8162 | nvlist_lookup_nvlist_array(nvl, ZPOOL_CONFIG_CHILDREN, &child, | |
8163 | &children) != 0) | |
8164 | return (spa_vdev_exit(spa, NULL, txg, EINVAL)); | |
8165 | ||
8166 | /* first, check to ensure we've got the right child count */ | |
8167 | rvd = spa->spa_root_vdev; | |
8168 | lastlog = 0; | |
8169 | for (c = 0; c < rvd->vdev_children; c++) { | |
8170 | vdev_t *vd = rvd->vdev_child[c]; | |
8171 | ||
8172 | /* don't count the holes & logs as children */ | |
1b664952 GA |
8173 | if (vd->vdev_islog || (vd->vdev_ops != &vdev_indirect_ops && |
8174 | !vdev_is_concrete(vd))) { | |
428870ff BB |
8175 | if (lastlog == 0) |
8176 | lastlog = c; | |
8177 | continue; | |
8178 | } | |
8179 | ||
8180 | lastlog = 0; | |
8181 | } | |
8182 | if (children != (lastlog != 0 ? lastlog : rvd->vdev_children)) | |
8183 | return (spa_vdev_exit(spa, NULL, txg, EINVAL)); | |
8184 | ||
8185 | /* next, ensure no spare or cache devices are part of the split */ | |
8186 | if (nvlist_lookup_nvlist(nvl, ZPOOL_CONFIG_SPARES, &tmp) == 0 || | |
8187 | nvlist_lookup_nvlist(nvl, ZPOOL_CONFIG_L2CACHE, &tmp) == 0) | |
8188 | return (spa_vdev_exit(spa, NULL, txg, EINVAL)); | |
8189 | ||
79c76d5b BB |
8190 | vml = kmem_zalloc(children * sizeof (vdev_t *), KM_SLEEP); |
8191 | glist = kmem_zalloc(children * sizeof (uint64_t), KM_SLEEP); | |
428870ff BB |
8192 | |
8193 | /* then, loop over each vdev and validate it */ | |
8194 | for (c = 0; c < children; c++) { | |
8195 | uint64_t is_hole = 0; | |
8196 | ||
8197 | (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_HOLE, | |
8198 | &is_hole); | |
8199 | ||
8200 | if (is_hole != 0) { | |
8201 | if (spa->spa_root_vdev->vdev_child[c]->vdev_ishole || | |
8202 | spa->spa_root_vdev->vdev_child[c]->vdev_islog) { | |
8203 | continue; | |
8204 | } else { | |
2e528b49 | 8205 | error = SET_ERROR(EINVAL); |
428870ff BB |
8206 | break; |
8207 | } | |
8208 | } | |
8209 | ||
1b664952 GA |
8210 | /* deal with indirect vdevs */ |
8211 | if (spa->spa_root_vdev->vdev_child[c]->vdev_ops == | |
8212 | &vdev_indirect_ops) | |
8213 | continue; | |
8214 | ||
428870ff BB |
8215 | /* which disk is going to be split? */ |
8216 | if (nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_GUID, | |
8217 | &glist[c]) != 0) { | |
2e528b49 | 8218 | error = SET_ERROR(EINVAL); |
428870ff BB |
8219 | break; |
8220 | } | |
8221 | ||
8222 | /* look it up in the spa */ | |
8223 | vml[c] = spa_lookup_by_guid(spa, glist[c], B_FALSE); | |
8224 | if (vml[c] == NULL) { | |
2e528b49 | 8225 | error = SET_ERROR(ENODEV); |
428870ff BB |
8226 | break; |
8227 | } | |
8228 | ||
8229 | /* make sure there's nothing stopping the split */ | |
8230 | if (vml[c]->vdev_parent->vdev_ops != &vdev_mirror_ops || | |
8231 | vml[c]->vdev_islog || | |
a1d477c2 | 8232 | !vdev_is_concrete(vml[c]) || |
428870ff BB |
8233 | vml[c]->vdev_isspare || |
8234 | vml[c]->vdev_isl2cache || | |
8235 | !vdev_writeable(vml[c]) || | |
8236 | vml[c]->vdev_children != 0 || | |
8237 | vml[c]->vdev_state != VDEV_STATE_HEALTHY || | |
8238 | c != spa->spa_root_vdev->vdev_child[c]->vdev_id) { | |
2e528b49 | 8239 | error = SET_ERROR(EINVAL); |
428870ff BB |
8240 | break; |
8241 | } | |
8242 | ||
733b5722 RS |
8243 | if (vdev_dtl_required(vml[c]) || |
8244 | vdev_resilver_needed(vml[c], NULL, NULL)) { | |
2e528b49 | 8245 | error = SET_ERROR(EBUSY); |
428870ff BB |
8246 | break; |
8247 | } | |
8248 | ||
8249 | /* we need certain info from the top level */ | |
65ad5d11 AJ |
8250 | fnvlist_add_uint64(child[c], ZPOOL_CONFIG_METASLAB_ARRAY, |
8251 | vml[c]->vdev_top->vdev_ms_array); | |
8252 | fnvlist_add_uint64(child[c], ZPOOL_CONFIG_METASLAB_SHIFT, | |
8253 | vml[c]->vdev_top->vdev_ms_shift); | |
8254 | fnvlist_add_uint64(child[c], ZPOOL_CONFIG_ASIZE, | |
8255 | vml[c]->vdev_top->vdev_asize); | |
8256 | fnvlist_add_uint64(child[c], ZPOOL_CONFIG_ASHIFT, | |
8257 | vml[c]->vdev_top->vdev_ashift); | |
e0ab3ab5 JS |
8258 | |
8259 | /* transfer per-vdev ZAPs */ | |
8260 | ASSERT3U(vml[c]->vdev_leaf_zap, !=, 0); | |
8261 | VERIFY0(nvlist_add_uint64(child[c], | |
8262 | ZPOOL_CONFIG_VDEV_LEAF_ZAP, vml[c]->vdev_leaf_zap)); | |
8263 | ||
8264 | ASSERT3U(vml[c]->vdev_top->vdev_top_zap, !=, 0); | |
8265 | VERIFY0(nvlist_add_uint64(child[c], | |
8266 | ZPOOL_CONFIG_VDEV_TOP_ZAP, | |
8267 | vml[c]->vdev_parent->vdev_top_zap)); | |
428870ff BB |
8268 | } |
8269 | ||
8270 | if (error != 0) { | |
8271 | kmem_free(vml, children * sizeof (vdev_t *)); | |
8272 | kmem_free(glist, children * sizeof (uint64_t)); | |
8273 | return (spa_vdev_exit(spa, NULL, txg, error)); | |
8274 | } | |
8275 | ||
8276 | /* stop writers from using the disks */ | |
8277 | for (c = 0; c < children; c++) { | |
8278 | if (vml[c] != NULL) | |
8279 | vml[c]->vdev_offline = B_TRUE; | |
8280 | } | |
8281 | vdev_reopen(spa->spa_root_vdev); | |
34dc7c2f BB |
8282 | |
8283 | /* | |
428870ff BB |
8284 | * Temporarily record the splitting vdevs in the spa config. This |
8285 | * will disappear once the config is regenerated. | |
34dc7c2f | 8286 | */ |
65ad5d11 AJ |
8287 | nvl = fnvlist_alloc(); |
8288 | fnvlist_add_uint64_array(nvl, ZPOOL_CONFIG_SPLIT_LIST, glist, children); | |
428870ff | 8289 | kmem_free(glist, children * sizeof (uint64_t)); |
34dc7c2f | 8290 | |
428870ff | 8291 | mutex_enter(&spa->spa_props_lock); |
65ad5d11 | 8292 | fnvlist_add_nvlist(spa->spa_config, ZPOOL_CONFIG_SPLIT, nvl); |
428870ff BB |
8293 | mutex_exit(&spa->spa_props_lock); |
8294 | spa->spa_config_splitting = nvl; | |
8295 | vdev_config_dirty(spa->spa_root_vdev); | |
8296 | ||
8297 | /* configure and create the new pool */ | |
65ad5d11 AJ |
8298 | fnvlist_add_string(config, ZPOOL_CONFIG_POOL_NAME, newname); |
8299 | fnvlist_add_uint64(config, ZPOOL_CONFIG_POOL_STATE, | |
8300 | exp ? POOL_STATE_EXPORTED : POOL_STATE_ACTIVE); | |
8301 | fnvlist_add_uint64(config, ZPOOL_CONFIG_VERSION, spa_version(spa)); | |
8302 | fnvlist_add_uint64(config, ZPOOL_CONFIG_POOL_TXG, spa->spa_config_txg); | |
8303 | fnvlist_add_uint64(config, ZPOOL_CONFIG_POOL_GUID, | |
8304 | spa_generate_guid(NULL)); | |
e0ab3ab5 | 8305 | VERIFY0(nvlist_add_boolean(config, ZPOOL_CONFIG_HAS_PER_VDEV_ZAPS)); |
428870ff BB |
8306 | (void) nvlist_lookup_string(props, |
8307 | zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot); | |
34dc7c2f | 8308 | |
428870ff BB |
8309 | /* add the new pool to the namespace */ |
8310 | newspa = spa_add(newname, config, altroot); | |
e0ab3ab5 | 8311 | newspa->spa_avz_action = AVZ_ACTION_REBUILD; |
428870ff BB |
8312 | newspa->spa_config_txg = spa->spa_config_txg; |
8313 | spa_set_log_state(newspa, SPA_LOG_CLEAR); | |
8314 | ||
8315 | /* release the spa config lock, retaining the namespace lock */ | |
8316 | spa_vdev_config_exit(spa, NULL, txg, 0, FTAG); | |
8317 | ||
8318 | if (zio_injection_enabled) | |
8319 | zio_handle_panic_injection(spa, FTAG, 1); | |
8320 | ||
8321 | spa_activate(newspa, spa_mode_global); | |
8322 | spa_async_suspend(newspa); | |
8323 | ||
c10d37dd | 8324 | /* |
1b939560 BB |
8325 | * Temporarily stop the initializing and TRIM activity. We set the |
8326 | * state to ACTIVE so that we know to resume initializing or TRIM | |
8327 | * once the split has completed. | |
c10d37dd | 8328 | */ |
1b939560 BB |
8329 | list_t vd_initialize_list; |
8330 | list_create(&vd_initialize_list, sizeof (vdev_t), | |
c10d37dd GW |
8331 | offsetof(vdev_t, vdev_initialize_node)); |
8332 | ||
1b939560 BB |
8333 | list_t vd_trim_list; |
8334 | list_create(&vd_trim_list, sizeof (vdev_t), | |
8335 | offsetof(vdev_t, vdev_trim_node)); | |
8336 | ||
619f0976 | 8337 | for (c = 0; c < children; c++) { |
1b664952 | 8338 | if (vml[c] != NULL && vml[c]->vdev_ops != &vdev_indirect_ops) { |
619f0976 | 8339 | mutex_enter(&vml[c]->vdev_initialize_lock); |
1b939560 BB |
8340 | vdev_initialize_stop(vml[c], |
8341 | VDEV_INITIALIZE_ACTIVE, &vd_initialize_list); | |
619f0976 | 8342 | mutex_exit(&vml[c]->vdev_initialize_lock); |
1b939560 BB |
8343 | |
8344 | mutex_enter(&vml[c]->vdev_trim_lock); | |
8345 | vdev_trim_stop(vml[c], VDEV_TRIM_ACTIVE, &vd_trim_list); | |
8346 | mutex_exit(&vml[c]->vdev_trim_lock); | |
619f0976 GW |
8347 | } |
8348 | } | |
1b939560 BB |
8349 | |
8350 | vdev_initialize_stop_wait(spa, &vd_initialize_list); | |
8351 | vdev_trim_stop_wait(spa, &vd_trim_list); | |
8352 | ||
8353 | list_destroy(&vd_initialize_list); | |
8354 | list_destroy(&vd_trim_list); | |
619f0976 | 8355 | |
6cb8e530 | 8356 | newspa->spa_config_source = SPA_CONFIG_SRC_SPLIT; |
8b27e08e | 8357 | newspa->spa_is_splitting = B_TRUE; |
6cb8e530 | 8358 | |
428870ff | 8359 | /* create the new pool from the disks of the original pool */ |
6cb8e530 | 8360 | error = spa_load(newspa, SPA_LOAD_IMPORT, SPA_IMPORT_ASSEMBLE); |
428870ff BB |
8361 | if (error) |
8362 | goto out; | |
8363 | ||
8364 | /* if that worked, generate a real config for the new pool */ | |
8365 | if (newspa->spa_root_vdev != NULL) { | |
65ad5d11 AJ |
8366 | newspa->spa_config_splitting = fnvlist_alloc(); |
8367 | fnvlist_add_uint64(newspa->spa_config_splitting, | |
8368 | ZPOOL_CONFIG_SPLIT_GUID, spa_guid(spa)); | |
428870ff BB |
8369 | spa_config_set(newspa, spa_config_generate(newspa, NULL, -1ULL, |
8370 | B_TRUE)); | |
9babb374 | 8371 | } |
34dc7c2f | 8372 | |
428870ff BB |
8373 | /* set the props */ |
8374 | if (props != NULL) { | |
8375 | spa_configfile_set(newspa, props, B_FALSE); | |
8376 | error = spa_prop_set(newspa, props); | |
8377 | if (error) | |
8378 | goto out; | |
8379 | } | |
34dc7c2f | 8380 | |
428870ff BB |
8381 | /* flush everything */ |
8382 | txg = spa_vdev_config_enter(newspa); | |
8383 | vdev_config_dirty(newspa->spa_root_vdev); | |
8384 | (void) spa_vdev_config_exit(newspa, NULL, txg, 0, FTAG); | |
34dc7c2f | 8385 | |
428870ff BB |
8386 | if (zio_injection_enabled) |
8387 | zio_handle_panic_injection(spa, FTAG, 2); | |
34dc7c2f | 8388 | |
428870ff | 8389 | spa_async_resume(newspa); |
34dc7c2f | 8390 | |
428870ff BB |
8391 | /* finally, update the original pool's config */ |
8392 | txg = spa_vdev_config_enter(spa); | |
8393 | tx = dmu_tx_create_dd(spa_get_dsl(spa)->dp_mos_dir); | |
8394 | error = dmu_tx_assign(tx, TXG_WAIT); | |
8395 | if (error != 0) | |
8396 | dmu_tx_abort(tx); | |
8397 | for (c = 0; c < children; c++) { | |
1b664952 | 8398 | if (vml[c] != NULL && vml[c]->vdev_ops != &vdev_indirect_ops) { |
234234ca RS |
8399 | vdev_t *tvd = vml[c]->vdev_top; |
8400 | ||
8401 | /* | |
8402 | * Need to be sure the detachable VDEV is not | |
8403 | * on any *other* txg's DTL list to prevent it | |
8404 | * from being accessed after it's freed. | |
8405 | */ | |
8406 | for (int t = 0; t < TXG_SIZE; t++) { | |
8407 | (void) txg_list_remove_this( | |
8408 | &tvd->vdev_dtl_list, vml[c], t); | |
8409 | } | |
8410 | ||
428870ff BB |
8411 | vdev_split(vml[c]); |
8412 | if (error == 0) | |
6f1ffb06 MA |
8413 | spa_history_log_internal(spa, "detach", tx, |
8414 | "vdev=%s", vml[c]->vdev_path); | |
e0ab3ab5 | 8415 | |
428870ff | 8416 | vdev_free(vml[c]); |
34dc7c2f | 8417 | } |
34dc7c2f | 8418 | } |
e0ab3ab5 | 8419 | spa->spa_avz_action = AVZ_ACTION_REBUILD; |
428870ff BB |
8420 | vdev_config_dirty(spa->spa_root_vdev); |
8421 | spa->spa_config_splitting = NULL; | |
8422 | nvlist_free(nvl); | |
8423 | if (error == 0) | |
8424 | dmu_tx_commit(tx); | |
8425 | (void) spa_vdev_exit(spa, NULL, txg, 0); | |
8426 | ||
8427 | if (zio_injection_enabled) | |
8428 | zio_handle_panic_injection(spa, FTAG, 3); | |
8429 | ||
8430 | /* split is complete; log a history record */ | |
6f1ffb06 MA |
8431 | spa_history_log_internal(newspa, "split", NULL, |
8432 | "from pool %s", spa_name(spa)); | |
428870ff | 8433 | |
8b27e08e | 8434 | newspa->spa_is_splitting = B_FALSE; |
428870ff BB |
8435 | kmem_free(vml, children * sizeof (vdev_t *)); |
8436 | ||
8437 | /* if we're not going to mount the filesystems in userland, export */ | |
8438 | if (exp) | |
8439 | error = spa_export_common(newname, POOL_STATE_EXPORTED, NULL, | |
8440 | B_FALSE, B_FALSE); | |
8441 | ||
8442 | return (error); | |
8443 | ||
8444 | out: | |
8445 | spa_unload(newspa); | |
8446 | spa_deactivate(newspa); | |
8447 | spa_remove(newspa); | |
8448 | ||
8449 | txg = spa_vdev_config_enter(spa); | |
8450 | ||
8451 | /* re-online all offlined disks */ | |
8452 | for (c = 0; c < children; c++) { | |
8453 | if (vml[c] != NULL) | |
8454 | vml[c]->vdev_offline = B_FALSE; | |
8455 | } | |
619f0976 | 8456 | |
1b939560 | 8457 | /* restart initializing or trimming disks as necessary */ |
619f0976 | 8458 | spa_async_request(spa, SPA_ASYNC_INITIALIZE_RESTART); |
1b939560 BB |
8459 | spa_async_request(spa, SPA_ASYNC_TRIM_RESTART); |
8460 | spa_async_request(spa, SPA_ASYNC_AUTOTRIM_RESTART); | |
619f0976 | 8461 | |
428870ff BB |
8462 | vdev_reopen(spa->spa_root_vdev); |
8463 | ||
8464 | nvlist_free(spa->spa_config_splitting); | |
8465 | spa->spa_config_splitting = NULL; | |
8466 | (void) spa_vdev_exit(spa, NULL, txg, error); | |
34dc7c2f | 8467 | |
428870ff | 8468 | kmem_free(vml, children * sizeof (vdev_t *)); |
34dc7c2f BB |
8469 | return (error); |
8470 | } | |
8471 | ||
34dc7c2f BB |
8472 | /* |
8473 | * Find any device that's done replacing, or a vdev marked 'unspare' that's | |
d3cc8b15 | 8474 | * currently spared, so we can detach it. |
34dc7c2f BB |
8475 | */ |
8476 | static vdev_t * | |
8477 | spa_vdev_resilver_done_hunt(vdev_t *vd) | |
8478 | { | |
8479 | vdev_t *newvd, *oldvd; | |
34dc7c2f | 8480 | |
1c27024e | 8481 | for (int c = 0; c < vd->vdev_children; c++) { |
34dc7c2f BB |
8482 | oldvd = spa_vdev_resilver_done_hunt(vd->vdev_child[c]); |
8483 | if (oldvd != NULL) | |
8484 | return (oldvd); | |
8485 | } | |
8486 | ||
8487 | /* | |
572e2857 BB |
8488 | * Check for a completed replacement. We always consider the first |
8489 | * vdev in the list to be the oldest vdev, and the last one to be | |
8490 | * the newest (see spa_vdev_attach() for how that works). In | |
8491 | * the case where the newest vdev is faulted, we will not automatically | |
8492 | * remove it after a resilver completes. This is OK as it will require | |
8493 | * user intervention to determine which disk the admin wishes to keep. | |
34dc7c2f | 8494 | */ |
572e2857 BB |
8495 | if (vd->vdev_ops == &vdev_replacing_ops) { |
8496 | ASSERT(vd->vdev_children > 1); | |
8497 | ||
8498 | newvd = vd->vdev_child[vd->vdev_children - 1]; | |
34dc7c2f | 8499 | oldvd = vd->vdev_child[0]; |
34dc7c2f | 8500 | |
fb5f0bc8 | 8501 | if (vdev_dtl_empty(newvd, DTL_MISSING) && |
428870ff | 8502 | vdev_dtl_empty(newvd, DTL_OUTAGE) && |
fb5f0bc8 | 8503 | !vdev_dtl_required(oldvd)) |
34dc7c2f | 8504 | return (oldvd); |
34dc7c2f BB |
8505 | } |
8506 | ||
8507 | /* | |
8508 | * Check for a completed resilver with the 'unspare' flag set. | |
f65fbee1 | 8509 | * Also potentially update faulted state. |
34dc7c2f | 8510 | */ |
572e2857 BB |
8511 | if (vd->vdev_ops == &vdev_spare_ops) { |
8512 | vdev_t *first = vd->vdev_child[0]; | |
8513 | vdev_t *last = vd->vdev_child[vd->vdev_children - 1]; | |
8514 | ||
8515 | if (last->vdev_unspare) { | |
8516 | oldvd = first; | |
8517 | newvd = last; | |
8518 | } else if (first->vdev_unspare) { | |
8519 | oldvd = last; | |
8520 | newvd = first; | |
8521 | } else { | |
8522 | oldvd = NULL; | |
8523 | } | |
34dc7c2f | 8524 | |
572e2857 | 8525 | if (oldvd != NULL && |
fb5f0bc8 | 8526 | vdev_dtl_empty(newvd, DTL_MISSING) && |
428870ff | 8527 | vdev_dtl_empty(newvd, DTL_OUTAGE) && |
572e2857 | 8528 | !vdev_dtl_required(oldvd)) |
34dc7c2f | 8529 | return (oldvd); |
572e2857 | 8530 | |
f65fbee1 JJ |
8531 | vdev_propagate_state(vd); |
8532 | ||
572e2857 BB |
8533 | /* |
8534 | * If there are more than two spares attached to a disk, | |
8535 | * and those spares are not required, then we want to | |
8536 | * attempt to free them up now so that they can be used | |
8537 | * by other pools. Once we're back down to a single | |
8538 | * disk+spare, we stop removing them. | |
8539 | */ | |
8540 | if (vd->vdev_children > 2) { | |
8541 | newvd = vd->vdev_child[1]; | |
8542 | ||
8543 | if (newvd->vdev_isspare && last->vdev_isspare && | |
8544 | vdev_dtl_empty(last, DTL_MISSING) && | |
8545 | vdev_dtl_empty(last, DTL_OUTAGE) && | |
8546 | !vdev_dtl_required(newvd)) | |
8547 | return (newvd); | |
34dc7c2f | 8548 | } |
34dc7c2f BB |
8549 | } |
8550 | ||
8551 | return (NULL); | |
8552 | } | |
8553 | ||
8554 | static void | |
8555 | spa_vdev_resilver_done(spa_t *spa) | |
8556 | { | |
fb5f0bc8 BB |
8557 | vdev_t *vd, *pvd, *ppvd; |
8558 | uint64_t guid, sguid, pguid, ppguid; | |
34dc7c2f | 8559 | |
fb5f0bc8 | 8560 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f BB |
8561 | |
8562 | while ((vd = spa_vdev_resilver_done_hunt(spa->spa_root_vdev)) != NULL) { | |
fb5f0bc8 BB |
8563 | pvd = vd->vdev_parent; |
8564 | ppvd = pvd->vdev_parent; | |
34dc7c2f | 8565 | guid = vd->vdev_guid; |
fb5f0bc8 BB |
8566 | pguid = pvd->vdev_guid; |
8567 | ppguid = ppvd->vdev_guid; | |
8568 | sguid = 0; | |
34dc7c2f BB |
8569 | /* |
8570 | * If we have just finished replacing a hot spared device, then | |
8571 | * we need to detach the parent's first child (the original hot | |
8572 | * spare) as well. | |
8573 | */ | |
572e2857 BB |
8574 | if (ppvd->vdev_ops == &vdev_spare_ops && pvd->vdev_id == 0 && |
8575 | ppvd->vdev_children == 2) { | |
34dc7c2f | 8576 | ASSERT(pvd->vdev_ops == &vdev_replacing_ops); |
fb5f0bc8 | 8577 | sguid = ppvd->vdev_child[1]->vdev_guid; |
34dc7c2f | 8578 | } |
5d1f7fb6 GW |
8579 | ASSERT(vd->vdev_resilver_txg == 0 || !vdev_dtl_required(vd)); |
8580 | ||
fb5f0bc8 BB |
8581 | spa_config_exit(spa, SCL_ALL, FTAG); |
8582 | if (spa_vdev_detach(spa, guid, pguid, B_TRUE) != 0) | |
34dc7c2f | 8583 | return; |
fb5f0bc8 | 8584 | if (sguid && spa_vdev_detach(spa, sguid, ppguid, B_TRUE) != 0) |
34dc7c2f | 8585 | return; |
fb5f0bc8 | 8586 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f BB |
8587 | } |
8588 | ||
fb5f0bc8 | 8589 | spa_config_exit(spa, SCL_ALL, FTAG); |
9a49d3f3 BB |
8590 | |
8591 | /* | |
8592 | * If a detach was not performed above replace waiters will not have | |
8593 | * been notified. In which case we must do so now. | |
8594 | */ | |
8595 | spa_notify_waiters(spa); | |
34dc7c2f BB |
8596 | } |
8597 | ||
8598 | /* | |
428870ff | 8599 | * Update the stored path or FRU for this vdev. |
34dc7c2f | 8600 | */ |
65c7cc49 | 8601 | static int |
9babb374 BB |
8602 | spa_vdev_set_common(spa_t *spa, uint64_t guid, const char *value, |
8603 | boolean_t ispath) | |
34dc7c2f | 8604 | { |
b128c09f | 8605 | vdev_t *vd; |
428870ff | 8606 | boolean_t sync = B_FALSE; |
34dc7c2f | 8607 | |
572e2857 BB |
8608 | ASSERT(spa_writeable(spa)); |
8609 | ||
428870ff | 8610 | spa_vdev_state_enter(spa, SCL_ALL); |
34dc7c2f | 8611 | |
9babb374 | 8612 | if ((vd = spa_lookup_by_guid(spa, guid, B_TRUE)) == NULL) |
428870ff | 8613 | return (spa_vdev_state_exit(spa, NULL, ENOENT)); |
34dc7c2f BB |
8614 | |
8615 | if (!vd->vdev_ops->vdev_op_leaf) | |
428870ff | 8616 | return (spa_vdev_state_exit(spa, NULL, ENOTSUP)); |
34dc7c2f | 8617 | |
9babb374 | 8618 | if (ispath) { |
428870ff BB |
8619 | if (strcmp(value, vd->vdev_path) != 0) { |
8620 | spa_strfree(vd->vdev_path); | |
8621 | vd->vdev_path = spa_strdup(value); | |
8622 | sync = B_TRUE; | |
8623 | } | |
9babb374 | 8624 | } else { |
428870ff BB |
8625 | if (vd->vdev_fru == NULL) { |
8626 | vd->vdev_fru = spa_strdup(value); | |
8627 | sync = B_TRUE; | |
8628 | } else if (strcmp(value, vd->vdev_fru) != 0) { | |
9babb374 | 8629 | spa_strfree(vd->vdev_fru); |
428870ff BB |
8630 | vd->vdev_fru = spa_strdup(value); |
8631 | sync = B_TRUE; | |
8632 | } | |
9babb374 | 8633 | } |
34dc7c2f | 8634 | |
428870ff | 8635 | return (spa_vdev_state_exit(spa, sync ? vd : NULL, 0)); |
34dc7c2f BB |
8636 | } |
8637 | ||
9babb374 BB |
8638 | int |
8639 | spa_vdev_setpath(spa_t *spa, uint64_t guid, const char *newpath) | |
8640 | { | |
8641 | return (spa_vdev_set_common(spa, guid, newpath, B_TRUE)); | |
8642 | } | |
8643 | ||
8644 | int | |
8645 | spa_vdev_setfru(spa_t *spa, uint64_t guid, const char *newfru) | |
8646 | { | |
8647 | return (spa_vdev_set_common(spa, guid, newfru, B_FALSE)); | |
8648 | } | |
8649 | ||
34dc7c2f BB |
8650 | /* |
8651 | * ========================================================================== | |
428870ff | 8652 | * SPA Scanning |
34dc7c2f BB |
8653 | * ========================================================================== |
8654 | */ | |
0ea05c64 AP |
8655 | int |
8656 | spa_scrub_pause_resume(spa_t *spa, pool_scrub_cmd_t cmd) | |
8657 | { | |
8658 | ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == 0); | |
8659 | ||
8660 | if (dsl_scan_resilvering(spa->spa_dsl_pool)) | |
8661 | return (SET_ERROR(EBUSY)); | |
8662 | ||
8663 | return (dsl_scrub_set_pause_resume(spa->spa_dsl_pool, cmd)); | |
8664 | } | |
34dc7c2f | 8665 | |
34dc7c2f | 8666 | int |
428870ff BB |
8667 | spa_scan_stop(spa_t *spa) |
8668 | { | |
8669 | ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == 0); | |
8670 | if (dsl_scan_resilvering(spa->spa_dsl_pool)) | |
2e528b49 | 8671 | return (SET_ERROR(EBUSY)); |
482eeef8 | 8672 | |
428870ff BB |
8673 | return (dsl_scan_cancel(spa->spa_dsl_pool)); |
8674 | } | |
8675 | ||
8676 | int | |
8677 | spa_scan(spa_t *spa, pool_scan_func_t func) | |
34dc7c2f | 8678 | { |
b128c09f | 8679 | ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == 0); |
34dc7c2f | 8680 | |
428870ff | 8681 | if (func >= POOL_SCAN_FUNCS || func == POOL_SCAN_NONE) |
2e528b49 | 8682 | return (SET_ERROR(ENOTSUP)); |
34dc7c2f | 8683 | |
fa241660 TC |
8684 | if (func == POOL_SCAN_RESILVER && |
8685 | !spa_feature_is_enabled(spa, SPA_FEATURE_RESILVER_DEFER)) | |
8686 | return (SET_ERROR(ENOTSUP)); | |
8687 | ||
34dc7c2f | 8688 | /* |
b128c09f BB |
8689 | * If a resilver was requested, but there is no DTL on a |
8690 | * writeable leaf device, we have nothing to do. | |
34dc7c2f | 8691 | */ |
428870ff | 8692 | if (func == POOL_SCAN_RESILVER && |
b128c09f BB |
8693 | !vdev_resilver_needed(spa->spa_root_vdev, NULL, NULL)) { |
8694 | spa_async_request(spa, SPA_ASYNC_RESILVER_DONE); | |
34dc7c2f BB |
8695 | return (0); |
8696 | } | |
8697 | ||
482eeef8 GA |
8698 | if (func == POOL_SCAN_ERRORSCRUB && |
8699 | !spa_feature_is_enabled(spa, SPA_FEATURE_HEAD_ERRLOG)) | |
8700 | return (SET_ERROR(ENOTSUP)); | |
8701 | ||
428870ff | 8702 | return (dsl_scan(spa->spa_dsl_pool, func)); |
34dc7c2f BB |
8703 | } |
8704 | ||
8705 | /* | |
8706 | * ========================================================================== | |
8707 | * SPA async task processing | |
8708 | * ========================================================================== | |
8709 | */ | |
8710 | ||
8711 | static void | |
8712 | spa_async_remove(spa_t *spa, vdev_t *vd) | |
8713 | { | |
b128c09f | 8714 | if (vd->vdev_remove_wanted) { |
428870ff BB |
8715 | vd->vdev_remove_wanted = B_FALSE; |
8716 | vd->vdev_delayed_close = B_FALSE; | |
b128c09f | 8717 | vdev_set_state(vd, B_FALSE, VDEV_STATE_REMOVED, VDEV_AUX_NONE); |
428870ff BB |
8718 | |
8719 | /* | |
8720 | * We want to clear the stats, but we don't want to do a full | |
8721 | * vdev_clear() as that will cause us to throw away | |
8722 | * degraded/faulted state as well as attempt to reopen the | |
8723 | * device, all of which is a waste. | |
8724 | */ | |
8725 | vd->vdev_stat.vs_read_errors = 0; | |
8726 | vd->vdev_stat.vs_write_errors = 0; | |
8727 | vd->vdev_stat.vs_checksum_errors = 0; | |
8728 | ||
b128c09f | 8729 | vdev_state_dirty(vd->vdev_top); |
0aacde2e RM |
8730 | |
8731 | /* Tell userspace that the vdev is gone. */ | |
8732 | zfs_post_remove(spa, vd); | |
b128c09f | 8733 | } |
34dc7c2f | 8734 | |
1c27024e | 8735 | for (int c = 0; c < vd->vdev_children; c++) |
b128c09f BB |
8736 | spa_async_remove(spa, vd->vdev_child[c]); |
8737 | } | |
8738 | ||
8739 | static void | |
8740 | spa_async_probe(spa_t *spa, vdev_t *vd) | |
8741 | { | |
8742 | if (vd->vdev_probe_wanted) { | |
428870ff | 8743 | vd->vdev_probe_wanted = B_FALSE; |
b128c09f | 8744 | vdev_reopen(vd); /* vdev_open() does the actual probe */ |
34dc7c2f | 8745 | } |
b128c09f | 8746 | |
1c27024e | 8747 | for (int c = 0; c < vd->vdev_children; c++) |
b128c09f | 8748 | spa_async_probe(spa, vd->vdev_child[c]); |
34dc7c2f BB |
8749 | } |
8750 | ||
9babb374 BB |
8751 | static void |
8752 | spa_async_autoexpand(spa_t *spa, vdev_t *vd) | |
8753 | { | |
9babb374 BB |
8754 | if (!spa->spa_autoexpand) |
8755 | return; | |
8756 | ||
1c27024e | 8757 | for (int c = 0; c < vd->vdev_children; c++) { |
9babb374 BB |
8758 | vdev_t *cvd = vd->vdev_child[c]; |
8759 | spa_async_autoexpand(spa, cvd); | |
8760 | } | |
8761 | ||
8762 | if (!vd->vdev_ops->vdev_op_leaf || vd->vdev_physpath == NULL) | |
8763 | return; | |
8764 | ||
12fa0466 | 8765 | spa_event_notify(vd->vdev_spa, vd, NULL, ESC_ZFS_VDEV_AUTOEXPAND); |
9babb374 BB |
8766 | } |
8767 | ||
460748d4 | 8768 | static __attribute__((noreturn)) void |
c25b8f99 | 8769 | spa_async_thread(void *arg) |
34dc7c2f | 8770 | { |
c25b8f99 | 8771 | spa_t *spa = (spa_t *)arg; |
80a91e74 | 8772 | dsl_pool_t *dp = spa->spa_dsl_pool; |
867959b5 | 8773 | int tasks; |
34dc7c2f BB |
8774 | |
8775 | ASSERT(spa->spa_sync_on); | |
8776 | ||
8777 | mutex_enter(&spa->spa_async_lock); | |
8778 | tasks = spa->spa_async_tasks; | |
8779 | spa->spa_async_tasks = 0; | |
8780 | mutex_exit(&spa->spa_async_lock); | |
8781 | ||
8782 | /* | |
8783 | * See if the config needs to be updated. | |
8784 | */ | |
8785 | if (tasks & SPA_ASYNC_CONFIG_UPDATE) { | |
428870ff | 8786 | uint64_t old_space, new_space; |
9babb374 | 8787 | |
34dc7c2f | 8788 | mutex_enter(&spa_namespace_lock); |
428870ff | 8789 | old_space = metaslab_class_get_space(spa_normal_class(spa)); |
cc99f275 DB |
8790 | old_space += metaslab_class_get_space(spa_special_class(spa)); |
8791 | old_space += metaslab_class_get_space(spa_dedup_class(spa)); | |
aa755b35 MA |
8792 | old_space += metaslab_class_get_space( |
8793 | spa_embedded_log_class(spa)); | |
cc99f275 | 8794 | |
34dc7c2f | 8795 | spa_config_update(spa, SPA_CONFIG_UPDATE_POOL); |
cc99f275 | 8796 | |
428870ff | 8797 | new_space = metaslab_class_get_space(spa_normal_class(spa)); |
cc99f275 DB |
8798 | new_space += metaslab_class_get_space(spa_special_class(spa)); |
8799 | new_space += metaslab_class_get_space(spa_dedup_class(spa)); | |
aa755b35 MA |
8800 | new_space += metaslab_class_get_space( |
8801 | spa_embedded_log_class(spa)); | |
34dc7c2f | 8802 | mutex_exit(&spa_namespace_lock); |
9babb374 BB |
8803 | |
8804 | /* | |
8805 | * If the pool grew as a result of the config update, | |
8806 | * then log an internal history event. | |
8807 | */ | |
428870ff | 8808 | if (new_space != old_space) { |
6f1ffb06 | 8809 | spa_history_log_internal(spa, "vdev online", NULL, |
45d1cae3 | 8810 | "pool '%s' size: %llu(+%llu)", |
74756182 MM |
8811 | spa_name(spa), (u_longlong_t)new_space, |
8812 | (u_longlong_t)(new_space - old_space)); | |
9babb374 | 8813 | } |
34dc7c2f BB |
8814 | } |
8815 | ||
8816 | /* | |
8817 | * See if any devices need to be marked REMOVED. | |
34dc7c2f | 8818 | */ |
b128c09f | 8819 | if (tasks & SPA_ASYNC_REMOVE) { |
428870ff | 8820 | spa_vdev_state_enter(spa, SCL_NONE); |
34dc7c2f | 8821 | spa_async_remove(spa, spa->spa_root_vdev); |
867959b5 | 8822 | for (int i = 0; i < spa->spa_l2cache.sav_count; i++) |
b128c09f | 8823 | spa_async_remove(spa, spa->spa_l2cache.sav_vdevs[i]); |
867959b5 | 8824 | for (int i = 0; i < spa->spa_spares.sav_count; i++) |
b128c09f BB |
8825 | spa_async_remove(spa, spa->spa_spares.sav_vdevs[i]); |
8826 | (void) spa_vdev_state_exit(spa, NULL, 0); | |
34dc7c2f BB |
8827 | } |
8828 | ||
9babb374 BB |
8829 | if ((tasks & SPA_ASYNC_AUTOEXPAND) && !spa_suspended(spa)) { |
8830 | spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); | |
8831 | spa_async_autoexpand(spa, spa->spa_root_vdev); | |
8832 | spa_config_exit(spa, SCL_CONFIG, FTAG); | |
8833 | } | |
8834 | ||
34dc7c2f | 8835 | /* |
b128c09f | 8836 | * See if any devices need to be probed. |
34dc7c2f | 8837 | */ |
b128c09f | 8838 | if (tasks & SPA_ASYNC_PROBE) { |
428870ff | 8839 | spa_vdev_state_enter(spa, SCL_NONE); |
b128c09f BB |
8840 | spa_async_probe(spa, spa->spa_root_vdev); |
8841 | (void) spa_vdev_state_exit(spa, NULL, 0); | |
8842 | } | |
34dc7c2f BB |
8843 | |
8844 | /* | |
b128c09f | 8845 | * If any devices are done replacing, detach them. |
34dc7c2f | 8846 | */ |
b2255edc | 8847 | if (tasks & SPA_ASYNC_RESILVER_DONE || |
719534ca AH |
8848 | tasks & SPA_ASYNC_REBUILD_DONE || |
8849 | tasks & SPA_ASYNC_DETACH_SPARE) { | |
b128c09f | 8850 | spa_vdev_resilver_done(spa); |
9a49d3f3 BB |
8851 | } |
8852 | ||
34dc7c2f BB |
8853 | /* |
8854 | * Kick off a resilver. | |
8855 | */ | |
80a91e74 | 8856 | if (tasks & SPA_ASYNC_RESILVER && |
9a49d3f3 | 8857 | !vdev_rebuild_active(spa->spa_root_vdev) && |
80a91e74 TC |
8858 | (!dsl_scan_resilvering(dp) || |
8859 | !spa_feature_is_enabled(dp->dp_spa, SPA_FEATURE_RESILVER_DEFER))) | |
3c819a2c | 8860 | dsl_scan_restart_resilver(dp, 0); |
34dc7c2f | 8861 | |
619f0976 GW |
8862 | if (tasks & SPA_ASYNC_INITIALIZE_RESTART) { |
8863 | mutex_enter(&spa_namespace_lock); | |
8864 | spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); | |
8865 | vdev_initialize_restart(spa->spa_root_vdev); | |
8866 | spa_config_exit(spa, SCL_CONFIG, FTAG); | |
8867 | mutex_exit(&spa_namespace_lock); | |
8868 | } | |
8869 | ||
1b939560 BB |
8870 | if (tasks & SPA_ASYNC_TRIM_RESTART) { |
8871 | mutex_enter(&spa_namespace_lock); | |
8872 | spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); | |
8873 | vdev_trim_restart(spa->spa_root_vdev); | |
8874 | spa_config_exit(spa, SCL_CONFIG, FTAG); | |
8875 | mutex_exit(&spa_namespace_lock); | |
8876 | } | |
8877 | ||
8878 | if (tasks & SPA_ASYNC_AUTOTRIM_RESTART) { | |
8879 | mutex_enter(&spa_namespace_lock); | |
8880 | spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); | |
8881 | vdev_autotrim_restart(spa); | |
8882 | spa_config_exit(spa, SCL_CONFIG, FTAG); | |
8883 | mutex_exit(&spa_namespace_lock); | |
8884 | } | |
8885 | ||
b7654bd7 GA |
8886 | /* |
8887 | * Kick off L2 cache whole device TRIM. | |
8888 | */ | |
8889 | if (tasks & SPA_ASYNC_L2CACHE_TRIM) { | |
8890 | mutex_enter(&spa_namespace_lock); | |
8891 | spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); | |
8892 | vdev_trim_l2arc(spa); | |
8893 | spa_config_exit(spa, SCL_CONFIG, FTAG); | |
8894 | mutex_exit(&spa_namespace_lock); | |
8895 | } | |
8896 | ||
77f6826b GA |
8897 | /* |
8898 | * Kick off L2 cache rebuilding. | |
8899 | */ | |
8900 | if (tasks & SPA_ASYNC_L2CACHE_REBUILD) { | |
8901 | mutex_enter(&spa_namespace_lock); | |
8902 | spa_config_enter(spa, SCL_L2ARC, FTAG, RW_READER); | |
8903 | l2arc_spa_rebuild_start(spa); | |
8904 | spa_config_exit(spa, SCL_L2ARC, FTAG); | |
8905 | mutex_exit(&spa_namespace_lock); | |
8906 | } | |
8907 | ||
34dc7c2f BB |
8908 | /* |
8909 | * Let the world know that we're done. | |
8910 | */ | |
8911 | mutex_enter(&spa->spa_async_lock); | |
8912 | spa->spa_async_thread = NULL; | |
8913 | cv_broadcast(&spa->spa_async_cv); | |
8914 | mutex_exit(&spa->spa_async_lock); | |
8915 | thread_exit(); | |
8916 | } | |
8917 | ||
8918 | void | |
8919 | spa_async_suspend(spa_t *spa) | |
8920 | { | |
8921 | mutex_enter(&spa->spa_async_lock); | |
8922 | spa->spa_async_suspended++; | |
9d5b5245 | 8923 | while (spa->spa_async_thread != NULL) |
34dc7c2f BB |
8924 | cv_wait(&spa->spa_async_cv, &spa->spa_async_lock); |
8925 | mutex_exit(&spa->spa_async_lock); | |
a1d477c2 MA |
8926 | |
8927 | spa_vdev_remove_suspend(spa); | |
9d5b5245 SD |
8928 | |
8929 | zthr_t *condense_thread = spa->spa_condense_zthr; | |
61c3391a SD |
8930 | if (condense_thread != NULL) |
8931 | zthr_cancel(condense_thread); | |
d2734cce | 8932 | |
5caeef02 DB |
8933 | zthr_t *raidz_expand_thread = spa->spa_raidz_expand_zthr; |
8934 | if (raidz_expand_thread != NULL) | |
8935 | zthr_cancel(raidz_expand_thread); | |
8936 | ||
d2734cce | 8937 | zthr_t *discard_thread = spa->spa_checkpoint_discard_zthr; |
61c3391a SD |
8938 | if (discard_thread != NULL) |
8939 | zthr_cancel(discard_thread); | |
37f03da8 SH |
8940 | |
8941 | zthr_t *ll_delete_thread = spa->spa_livelist_delete_zthr; | |
8942 | if (ll_delete_thread != NULL) | |
8943 | zthr_cancel(ll_delete_thread); | |
8944 | ||
8945 | zthr_t *ll_condense_thread = spa->spa_livelist_condense_zthr; | |
8946 | if (ll_condense_thread != NULL) | |
8947 | zthr_cancel(ll_condense_thread); | |
34dc7c2f BB |
8948 | } |
8949 | ||
8950 | void | |
8951 | spa_async_resume(spa_t *spa) | |
8952 | { | |
8953 | mutex_enter(&spa->spa_async_lock); | |
8954 | ASSERT(spa->spa_async_suspended != 0); | |
8955 | spa->spa_async_suspended--; | |
8956 | mutex_exit(&spa->spa_async_lock); | |
a1d477c2 | 8957 | spa_restart_removal(spa); |
9d5b5245 SD |
8958 | |
8959 | zthr_t *condense_thread = spa->spa_condense_zthr; | |
61c3391a | 8960 | if (condense_thread != NULL) |
9d5b5245 | 8961 | zthr_resume(condense_thread); |
d2734cce | 8962 | |
5caeef02 DB |
8963 | zthr_t *raidz_expand_thread = spa->spa_raidz_expand_zthr; |
8964 | if (raidz_expand_thread != NULL) | |
8965 | zthr_resume(raidz_expand_thread); | |
8966 | ||
d2734cce | 8967 | zthr_t *discard_thread = spa->spa_checkpoint_discard_zthr; |
61c3391a | 8968 | if (discard_thread != NULL) |
d2734cce | 8969 | zthr_resume(discard_thread); |
37f03da8 SH |
8970 | |
8971 | zthr_t *ll_delete_thread = spa->spa_livelist_delete_zthr; | |
8972 | if (ll_delete_thread != NULL) | |
8973 | zthr_resume(ll_delete_thread); | |
8974 | ||
8975 | zthr_t *ll_condense_thread = spa->spa_livelist_condense_zthr; | |
8976 | if (ll_condense_thread != NULL) | |
8977 | zthr_resume(ll_condense_thread); | |
34dc7c2f BB |
8978 | } |
8979 | ||
e6cfd633 WA |
8980 | static boolean_t |
8981 | spa_async_tasks_pending(spa_t *spa) | |
8982 | { | |
8983 | uint_t non_config_tasks; | |
8984 | uint_t config_task; | |
8985 | boolean_t config_task_suspended; | |
8986 | ||
8987 | non_config_tasks = spa->spa_async_tasks & ~SPA_ASYNC_CONFIG_UPDATE; | |
8988 | config_task = spa->spa_async_tasks & SPA_ASYNC_CONFIG_UPDATE; | |
8989 | if (spa->spa_ccw_fail_time == 0) { | |
8990 | config_task_suspended = B_FALSE; | |
8991 | } else { | |
8992 | config_task_suspended = | |
8993 | (gethrtime() - spa->spa_ccw_fail_time) < | |
05852b34 | 8994 | ((hrtime_t)zfs_ccw_retry_interval * NANOSEC); |
e6cfd633 WA |
8995 | } |
8996 | ||
8997 | return (non_config_tasks || (config_task && !config_task_suspended)); | |
8998 | } | |
8999 | ||
34dc7c2f BB |
9000 | static void |
9001 | spa_async_dispatch(spa_t *spa) | |
9002 | { | |
9003 | mutex_enter(&spa->spa_async_lock); | |
e6cfd633 WA |
9004 | if (spa_async_tasks_pending(spa) && |
9005 | !spa->spa_async_suspended && | |
da92d5cb | 9006 | spa->spa_async_thread == NULL) |
34dc7c2f BB |
9007 | spa->spa_async_thread = thread_create(NULL, 0, |
9008 | spa_async_thread, spa, 0, &p0, TS_RUN, maxclsyspri); | |
9009 | mutex_exit(&spa->spa_async_lock); | |
9010 | } | |
9011 | ||
9012 | void | |
9013 | spa_async_request(spa_t *spa, int task) | |
9014 | { | |
428870ff | 9015 | zfs_dbgmsg("spa=%s async request task=%u", spa->spa_name, task); |
34dc7c2f BB |
9016 | mutex_enter(&spa->spa_async_lock); |
9017 | spa->spa_async_tasks |= task; | |
9018 | mutex_exit(&spa->spa_async_lock); | |
9019 | } | |
9020 | ||
3c819a2c JP |
9021 | int |
9022 | spa_async_tasks(spa_t *spa) | |
9023 | { | |
9024 | return (spa->spa_async_tasks); | |
9025 | } | |
9026 | ||
34dc7c2f BB |
9027 | /* |
9028 | * ========================================================================== | |
9029 | * SPA syncing routines | |
9030 | * ========================================================================== | |
9031 | */ | |
9032 | ||
37f03da8 | 9033 | |
428870ff | 9034 | static int |
37f03da8 SH |
9035 | bpobj_enqueue_cb(void *arg, const blkptr_t *bp, boolean_t bp_freed, |
9036 | dmu_tx_t *tx) | |
34dc7c2f | 9037 | { |
428870ff | 9038 | bpobj_t *bpo = arg; |
37f03da8 | 9039 | bpobj_enqueue(bpo, bp, bp_freed, tx); |
428870ff BB |
9040 | return (0); |
9041 | } | |
34dc7c2f | 9042 | |
37f03da8 SH |
9043 | int |
9044 | bpobj_enqueue_alloc_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) | |
9045 | { | |
9046 | return (bpobj_enqueue_cb(arg, bp, B_FALSE, tx)); | |
9047 | } | |
9048 | ||
9049 | int | |
9050 | bpobj_enqueue_free_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) | |
9051 | { | |
9052 | return (bpobj_enqueue_cb(arg, bp, B_TRUE, tx)); | |
9053 | } | |
9054 | ||
428870ff BB |
9055 | static int |
9056 | spa_free_sync_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) | |
9057 | { | |
9cdf7b1f | 9058 | zio_t *pio = arg; |
34dc7c2f | 9059 | |
9cdf7b1f MA |
9060 | zio_nowait(zio_free_sync(pio, pio->io_spa, dmu_tx_get_txg(tx), bp, |
9061 | pio->io_flags)); | |
428870ff | 9062 | return (0); |
34dc7c2f BB |
9063 | } |
9064 | ||
37f03da8 SH |
9065 | static int |
9066 | bpobj_spa_free_sync_cb(void *arg, const blkptr_t *bp, boolean_t bp_freed, | |
9067 | dmu_tx_t *tx) | |
9068 | { | |
9069 | ASSERT(!bp_freed); | |
9070 | return (spa_free_sync_cb(arg, bp, tx)); | |
9071 | } | |
9072 | ||
e8b96c60 MA |
9073 | /* |
9074 | * Note: this simple function is not inlined to make it easier to dtrace the | |
9075 | * amount of time spent syncing frees. | |
9076 | */ | |
9077 | static void | |
9078 | spa_sync_frees(spa_t *spa, bplist_t *bpl, dmu_tx_t *tx) | |
9079 | { | |
9080 | zio_t *zio = zio_root(spa, NULL, NULL, 0); | |
9081 | bplist_iterate(bpl, spa_free_sync_cb, zio, tx); | |
9082 | VERIFY(zio_wait(zio) == 0); | |
9083 | } | |
9084 | ||
9085 | /* | |
9086 | * Note: this simple function is not inlined to make it easier to dtrace the | |
9087 | * amount of time spent syncing deferred frees. | |
9088 | */ | |
9089 | static void | |
9090 | spa_sync_deferred_frees(spa_t *spa, dmu_tx_t *tx) | |
9091 | { | |
8dc2197b SD |
9092 | if (spa_sync_pass(spa) != 1) |
9093 | return; | |
9094 | ||
93e28d66 SD |
9095 | /* |
9096 | * Note: | |
9097 | * If the log space map feature is active, we stop deferring | |
9098 | * frees to the next TXG and therefore running this function | |
9099 | * would be considered a no-op as spa_deferred_bpobj should | |
9100 | * not have any entries. | |
9101 | * | |
9102 | * That said we run this function anyway (instead of returning | |
9103 | * immediately) for the edge-case scenario where we just | |
9104 | * activated the log space map feature in this TXG but we have | |
9105 | * deferred frees from the previous TXG. | |
9106 | */ | |
e8b96c60 MA |
9107 | zio_t *zio = zio_root(spa, NULL, NULL, 0); |
9108 | VERIFY3U(bpobj_iterate(&spa->spa_deferred_bpobj, | |
37f03da8 | 9109 | bpobj_spa_free_sync_cb, zio, tx), ==, 0); |
e8b96c60 MA |
9110 | VERIFY0(zio_wait(zio)); |
9111 | } | |
9112 | ||
34dc7c2f BB |
9113 | static void |
9114 | spa_sync_nvlist(spa_t *spa, uint64_t obj, nvlist_t *nv, dmu_tx_t *tx) | |
9115 | { | |
9116 | char *packed = NULL; | |
b128c09f | 9117 | size_t bufsize; |
34dc7c2f BB |
9118 | size_t nvsize = 0; |
9119 | dmu_buf_t *db; | |
9120 | ||
9121 | VERIFY(nvlist_size(nv, &nvsize, NV_ENCODE_XDR) == 0); | |
9122 | ||
b128c09f BB |
9123 | /* |
9124 | * Write full (SPA_CONFIG_BLOCKSIZE) blocks of configuration | |
b0bc7a84 | 9125 | * information. This avoids the dmu_buf_will_dirty() path and |
b128c09f BB |
9126 | * saves us a pre-read to get data we don't actually care about. |
9127 | */ | |
9ae529ec | 9128 | bufsize = P2ROUNDUP((uint64_t)nvsize, SPA_CONFIG_BLOCKSIZE); |
79c76d5b | 9129 | packed = vmem_alloc(bufsize, KM_SLEEP); |
34dc7c2f BB |
9130 | |
9131 | VERIFY(nvlist_pack(nv, &packed, &nvsize, NV_ENCODE_XDR, | |
79c76d5b | 9132 | KM_SLEEP) == 0); |
861166b0 | 9133 | memset(packed + nvsize, 0, bufsize - nvsize); |
34dc7c2f | 9134 | |
b128c09f | 9135 | dmu_write(spa->spa_meta_objset, obj, 0, bufsize, packed, tx); |
34dc7c2f | 9136 | |
00b46022 | 9137 | vmem_free(packed, bufsize); |
34dc7c2f BB |
9138 | |
9139 | VERIFY(0 == dmu_bonus_hold(spa->spa_meta_objset, obj, FTAG, &db)); | |
9140 | dmu_buf_will_dirty(db, tx); | |
9141 | *(uint64_t *)db->db_data = nvsize; | |
9142 | dmu_buf_rele(db, FTAG); | |
9143 | } | |
9144 | ||
9145 | static void | |
9146 | spa_sync_aux_dev(spa_t *spa, spa_aux_vdev_t *sav, dmu_tx_t *tx, | |
9147 | const char *config, const char *entry) | |
9148 | { | |
9149 | nvlist_t *nvroot; | |
9150 | nvlist_t **list; | |
9151 | int i; | |
9152 | ||
9153 | if (!sav->sav_sync) | |
9154 | return; | |
9155 | ||
9156 | /* | |
9157 | * Update the MOS nvlist describing the list of available devices. | |
9158 | * spa_validate_aux() will have already made sure this nvlist is | |
9159 | * valid and the vdevs are labeled appropriately. | |
9160 | */ | |
9161 | if (sav->sav_object == 0) { | |
9162 | sav->sav_object = dmu_object_alloc(spa->spa_meta_objset, | |
9163 | DMU_OT_PACKED_NVLIST, 1 << 14, DMU_OT_PACKED_NVLIST_SIZE, | |
9164 | sizeof (uint64_t), tx); | |
9165 | VERIFY(zap_update(spa->spa_meta_objset, | |
9166 | DMU_POOL_DIRECTORY_OBJECT, entry, sizeof (uint64_t), 1, | |
9167 | &sav->sav_object, tx) == 0); | |
9168 | } | |
9169 | ||
65ad5d11 | 9170 | nvroot = fnvlist_alloc(); |
34dc7c2f | 9171 | if (sav->sav_count == 0) { |
795075e6 PD |
9172 | fnvlist_add_nvlist_array(nvroot, config, |
9173 | (const nvlist_t * const *)NULL, 0); | |
34dc7c2f | 9174 | } else { |
79c76d5b | 9175 | list = kmem_alloc(sav->sav_count*sizeof (void *), KM_SLEEP); |
34dc7c2f BB |
9176 | for (i = 0; i < sav->sav_count; i++) |
9177 | list[i] = vdev_config_generate(spa, sav->sav_vdevs[i], | |
428870ff | 9178 | B_FALSE, VDEV_CONFIG_L2CACHE); |
795075e6 PD |
9179 | fnvlist_add_nvlist_array(nvroot, config, |
9180 | (const nvlist_t * const *)list, sav->sav_count); | |
34dc7c2f BB |
9181 | for (i = 0; i < sav->sav_count; i++) |
9182 | nvlist_free(list[i]); | |
9183 | kmem_free(list, sav->sav_count * sizeof (void *)); | |
9184 | } | |
9185 | ||
9186 | spa_sync_nvlist(spa, sav->sav_object, nvroot, tx); | |
9187 | nvlist_free(nvroot); | |
9188 | ||
9189 | sav->sav_sync = B_FALSE; | |
9190 | } | |
9191 | ||
e0ab3ab5 JS |
9192 | /* |
9193 | * Rebuild spa's all-vdev ZAP from the vdev ZAPs indicated in each vdev_t. | |
9194 | * The all-vdev ZAP must be empty. | |
9195 | */ | |
9196 | static void | |
9197 | spa_avz_build(vdev_t *vd, uint64_t avz, dmu_tx_t *tx) | |
9198 | { | |
9199 | spa_t *spa = vd->vdev_spa; | |
e0ab3ab5 | 9200 | |
3e4ed421 RW |
9201 | if (vd->vdev_root_zap != 0 && |
9202 | spa_feature_is_active(spa, SPA_FEATURE_AVZ_V2)) { | |
9203 | VERIFY0(zap_add_int(spa->spa_meta_objset, avz, | |
9204 | vd->vdev_root_zap, tx)); | |
9205 | } | |
e0ab3ab5 JS |
9206 | if (vd->vdev_top_zap != 0) { |
9207 | VERIFY0(zap_add_int(spa->spa_meta_objset, avz, | |
9208 | vd->vdev_top_zap, tx)); | |
9209 | } | |
9210 | if (vd->vdev_leaf_zap != 0) { | |
9211 | VERIFY0(zap_add_int(spa->spa_meta_objset, avz, | |
9212 | vd->vdev_leaf_zap, tx)); | |
9213 | } | |
1c27024e | 9214 | for (uint64_t i = 0; i < vd->vdev_children; i++) { |
e0ab3ab5 JS |
9215 | spa_avz_build(vd->vdev_child[i], avz, tx); |
9216 | } | |
9217 | } | |
9218 | ||
34dc7c2f BB |
9219 | static void |
9220 | spa_sync_config_object(spa_t *spa, dmu_tx_t *tx) | |
9221 | { | |
9222 | nvlist_t *config; | |
9223 | ||
e0ab3ab5 JS |
9224 | /* |
9225 | * If the pool is being imported from a pre-per-vdev-ZAP version of ZFS, | |
9226 | * its config may not be dirty but we still need to build per-vdev ZAPs. | |
9227 | * Similarly, if the pool is being assembled (e.g. after a split), we | |
9228 | * need to rebuild the AVZ although the config may not be dirty. | |
9229 | */ | |
9230 | if (list_is_empty(&spa->spa_config_dirty_list) && | |
9231 | spa->spa_avz_action == AVZ_ACTION_NONE) | |
34dc7c2f BB |
9232 | return; |
9233 | ||
b128c09f BB |
9234 | spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); |
9235 | ||
e0ab3ab5 | 9236 | ASSERT(spa->spa_avz_action == AVZ_ACTION_NONE || |
38640550 | 9237 | spa->spa_avz_action == AVZ_ACTION_INITIALIZE || |
e0ab3ab5 JS |
9238 | spa->spa_all_vdev_zaps != 0); |
9239 | ||
9240 | if (spa->spa_avz_action == AVZ_ACTION_REBUILD) { | |
e0ab3ab5 JS |
9241 | /* Make and build the new AVZ */ |
9242 | uint64_t new_avz = zap_create(spa->spa_meta_objset, | |
9243 | DMU_OTN_ZAP_METADATA, DMU_OT_NONE, 0, tx); | |
9244 | spa_avz_build(spa->spa_root_vdev, new_avz, tx); | |
9245 | ||
9246 | /* Diff old AVZ with new one */ | |
1c27024e DB |
9247 | zap_cursor_t zc; |
9248 | zap_attribute_t za; | |
9249 | ||
e0ab3ab5 JS |
9250 | for (zap_cursor_init(&zc, spa->spa_meta_objset, |
9251 | spa->spa_all_vdev_zaps); | |
9252 | zap_cursor_retrieve(&zc, &za) == 0; | |
9253 | zap_cursor_advance(&zc)) { | |
9254 | uint64_t vdzap = za.za_first_integer; | |
9255 | if (zap_lookup_int(spa->spa_meta_objset, new_avz, | |
9256 | vdzap) == ENOENT) { | |
9257 | /* | |
9258 | * ZAP is listed in old AVZ but not in new one; | |
9259 | * destroy it | |
9260 | */ | |
9261 | VERIFY0(zap_destroy(spa->spa_meta_objset, vdzap, | |
9262 | tx)); | |
9263 | } | |
9264 | } | |
9265 | ||
9266 | zap_cursor_fini(&zc); | |
9267 | ||
9268 | /* Destroy the old AVZ */ | |
9269 | VERIFY0(zap_destroy(spa->spa_meta_objset, | |
9270 | spa->spa_all_vdev_zaps, tx)); | |
9271 | ||
9272 | /* Replace the old AVZ in the dir obj with the new one */ | |
9273 | VERIFY0(zap_update(spa->spa_meta_objset, | |
9274 | DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_VDEV_ZAP_MAP, | |
9275 | sizeof (new_avz), 1, &new_avz, tx)); | |
9276 | ||
9277 | spa->spa_all_vdev_zaps = new_avz; | |
9278 | } else if (spa->spa_avz_action == AVZ_ACTION_DESTROY) { | |
9279 | zap_cursor_t zc; | |
9280 | zap_attribute_t za; | |
9281 | ||
9282 | /* Walk through the AVZ and destroy all listed ZAPs */ | |
9283 | for (zap_cursor_init(&zc, spa->spa_meta_objset, | |
9284 | spa->spa_all_vdev_zaps); | |
9285 | zap_cursor_retrieve(&zc, &za) == 0; | |
9286 | zap_cursor_advance(&zc)) { | |
9287 | uint64_t zap = za.za_first_integer; | |
9288 | VERIFY0(zap_destroy(spa->spa_meta_objset, zap, tx)); | |
9289 | } | |
9290 | ||
9291 | zap_cursor_fini(&zc); | |
9292 | ||
9293 | /* Destroy and unlink the AVZ itself */ | |
9294 | VERIFY0(zap_destroy(spa->spa_meta_objset, | |
9295 | spa->spa_all_vdev_zaps, tx)); | |
9296 | VERIFY0(zap_remove(spa->spa_meta_objset, | |
9297 | DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_VDEV_ZAP_MAP, tx)); | |
9298 | spa->spa_all_vdev_zaps = 0; | |
9299 | } | |
9300 | ||
9301 | if (spa->spa_all_vdev_zaps == 0) { | |
9302 | spa->spa_all_vdev_zaps = zap_create_link(spa->spa_meta_objset, | |
9303 | DMU_OTN_ZAP_METADATA, DMU_POOL_DIRECTORY_OBJECT, | |
9304 | DMU_POOL_VDEV_ZAP_MAP, tx); | |
9305 | } | |
9306 | spa->spa_avz_action = AVZ_ACTION_NONE; | |
9307 | ||
9308 | /* Create ZAPs for vdevs that don't have them. */ | |
9309 | vdev_construct_zaps(spa->spa_root_vdev, tx); | |
9310 | ||
b128c09f BB |
9311 | config = spa_config_generate(spa, spa->spa_root_vdev, |
9312 | dmu_tx_get_txg(tx), B_FALSE); | |
9313 | ||
ea0b2538 GW |
9314 | /* |
9315 | * If we're upgrading the spa version then make sure that | |
9316 | * the config object gets updated with the correct version. | |
9317 | */ | |
9318 | if (spa->spa_ubsync.ub_version < spa->spa_uberblock.ub_version) | |
9319 | fnvlist_add_uint64(config, ZPOOL_CONFIG_VERSION, | |
9320 | spa->spa_uberblock.ub_version); | |
9321 | ||
b128c09f | 9322 | spa_config_exit(spa, SCL_STATE, FTAG); |
34dc7c2f | 9323 | |
8a5fc748 | 9324 | nvlist_free(spa->spa_config_syncing); |
34dc7c2f BB |
9325 | spa->spa_config_syncing = config; |
9326 | ||
9327 | spa_sync_nvlist(spa, spa->spa_config_object, config, tx); | |
9328 | } | |
9329 | ||
9ae529ec | 9330 | static void |
13fe0198 | 9331 | spa_sync_version(void *arg, dmu_tx_t *tx) |
9ae529ec | 9332 | { |
13fe0198 MA |
9333 | uint64_t *versionp = arg; |
9334 | uint64_t version = *versionp; | |
9335 | spa_t *spa = dmu_tx_pool(tx)->dp_spa; | |
9ae529ec CS |
9336 | |
9337 | /* | |
9338 | * Setting the version is special cased when first creating the pool. | |
9339 | */ | |
9340 | ASSERT(tx->tx_txg != TXG_INITIAL); | |
9341 | ||
8dca0a9a | 9342 | ASSERT(SPA_VERSION_IS_SUPPORTED(version)); |
9ae529ec CS |
9343 | ASSERT(version >= spa_version(spa)); |
9344 | ||
9345 | spa->spa_uberblock.ub_version = version; | |
9346 | vdev_config_dirty(spa->spa_root_vdev); | |
74756182 MM |
9347 | spa_history_log_internal(spa, "set", tx, "version=%lld", |
9348 | (longlong_t)version); | |
9ae529ec CS |
9349 | } |
9350 | ||
34dc7c2f BB |
9351 | /* |
9352 | * Set zpool properties. | |
9353 | */ | |
9354 | static void | |
13fe0198 | 9355 | spa_sync_props(void *arg, dmu_tx_t *tx) |
34dc7c2f | 9356 | { |
13fe0198 MA |
9357 | nvlist_t *nvp = arg; |
9358 | spa_t *spa = dmu_tx_pool(tx)->dp_spa; | |
34dc7c2f | 9359 | objset_t *mos = spa->spa_meta_objset; |
9ae529ec | 9360 | nvpair_t *elem = NULL; |
b128c09f BB |
9361 | |
9362 | mutex_enter(&spa->spa_props_lock); | |
34dc7c2f | 9363 | |
34dc7c2f | 9364 | while ((elem = nvlist_next_nvpair(nvp, elem))) { |
9ae529ec | 9365 | uint64_t intval; |
d1807f16 | 9366 | const char *strval, *fname; |
9ae529ec CS |
9367 | zpool_prop_t prop; |
9368 | const char *propname; | |
8eae2d21 | 9369 | const char *elemname = nvpair_name(elem); |
9ae529ec | 9370 | zprop_type_t proptype; |
fa86b5db | 9371 | spa_feature_t fid; |
9ae529ec | 9372 | |
8eae2d21 | 9373 | switch (prop = zpool_name_to_prop(elemname)) { |
34dc7c2f | 9374 | case ZPOOL_PROP_VERSION: |
93cf2076 | 9375 | intval = fnvpair_value_uint64(elem); |
34dc7c2f | 9376 | /* |
4e33ba4c | 9377 | * The version is synced separately before other |
9ae529ec | 9378 | * properties and should be correct by now. |
34dc7c2f | 9379 | */ |
9ae529ec | 9380 | ASSERT3U(spa_version(spa), >=, intval); |
34dc7c2f BB |
9381 | break; |
9382 | ||
9383 | case ZPOOL_PROP_ALTROOT: | |
9384 | /* | |
9385 | * 'altroot' is a non-persistent property. It should | |
9386 | * have been set temporarily at creation or import time. | |
9387 | */ | |
9388 | ASSERT(spa->spa_root != NULL); | |
9389 | break; | |
9390 | ||
572e2857 | 9391 | case ZPOOL_PROP_READONLY: |
34dc7c2f BB |
9392 | case ZPOOL_PROP_CACHEFILE: |
9393 | /* | |
e1cfd73f | 9394 | * 'readonly' and 'cachefile' are also non-persistent |
572e2857 | 9395 | * properties. |
34dc7c2f | 9396 | */ |
34dc7c2f | 9397 | break; |
d96eb2b1 | 9398 | case ZPOOL_PROP_COMMENT: |
93cf2076 | 9399 | strval = fnvpair_value_string(elem); |
d96eb2b1 DM |
9400 | if (spa->spa_comment != NULL) |
9401 | spa_strfree(spa->spa_comment); | |
9402 | spa->spa_comment = spa_strdup(strval); | |
9403 | /* | |
9404 | * We need to dirty the configuration on all the vdevs | |
88a48330 BB |
9405 | * so that their labels get updated. We also need to |
9406 | * update the cache file to keep it in sync with the | |
9407 | * MOS version. It's unnecessary to do this for pool | |
9408 | * creation since the vdev's configuration has already | |
9409 | * been dirtied. | |
d96eb2b1 | 9410 | */ |
88a48330 | 9411 | if (tx->tx_txg != TXG_INITIAL) { |
d96eb2b1 | 9412 | vdev_config_dirty(spa->spa_root_vdev); |
88a48330 BB |
9413 | spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE); |
9414 | } | |
6f1ffb06 | 9415 | spa_history_log_internal(spa, "set", tx, |
8eae2d21 | 9416 | "%s=%s", elemname, strval); |
d96eb2b1 | 9417 | break; |
658fb802 CB |
9418 | case ZPOOL_PROP_COMPATIBILITY: |
9419 | strval = fnvpair_value_string(elem); | |
9420 | if (spa->spa_compatibility != NULL) | |
9421 | spa_strfree(spa->spa_compatibility); | |
9422 | spa->spa_compatibility = spa_strdup(strval); | |
9423 | /* | |
9424 | * Dirty the configuration on vdevs as above. | |
9425 | */ | |
88a48330 | 9426 | if (tx->tx_txg != TXG_INITIAL) { |
658fb802 | 9427 | vdev_config_dirty(spa->spa_root_vdev); |
88a48330 BB |
9428 | spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE); |
9429 | } | |
9430 | ||
658fb802 CB |
9431 | spa_history_log_internal(spa, "set", tx, |
9432 | "%s=%s", nvpair_name(elem), strval); | |
9433 | break; | |
9434 | ||
8eae2d21 AJ |
9435 | case ZPOOL_PROP_INVAL: |
9436 | if (zpool_prop_feature(elemname)) { | |
9437 | fname = strchr(elemname, '@') + 1; | |
9438 | VERIFY0(zfeature_lookup_name(fname, &fid)); | |
9439 | ||
9440 | spa_feature_enable(spa, fid, tx); | |
9441 | spa_history_log_internal(spa, "set", tx, | |
9442 | "%s=enabled", elemname); | |
9443 | break; | |
9444 | } else if (!zfs_prop_user(elemname)) { | |
9445 | ASSERT(zpool_prop_feature(elemname)); | |
9446 | break; | |
9447 | } | |
9448 | zfs_fallthrough; | |
34dc7c2f BB |
9449 | default: |
9450 | /* | |
9451 | * Set pool property values in the poolprops mos object. | |
9452 | */ | |
34dc7c2f | 9453 | if (spa->spa_pool_props_object == 0) { |
9ae529ec CS |
9454 | spa->spa_pool_props_object = |
9455 | zap_create_link(mos, DMU_OT_POOL_PROPS, | |
34dc7c2f | 9456 | DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_PROPS, |
9ae529ec | 9457 | tx); |
34dc7c2f | 9458 | } |
34dc7c2f BB |
9459 | |
9460 | /* normalize the property name */ | |
ee7b71db | 9461 | if (prop == ZPOOL_PROP_INVAL) { |
8eae2d21 AJ |
9462 | propname = elemname; |
9463 | proptype = PROP_TYPE_STRING; | |
ee7b71db RY |
9464 | } else { |
9465 | propname = zpool_prop_to_name(prop); | |
9466 | proptype = zpool_prop_get_type(prop); | |
8eae2d21 | 9467 | } |
34dc7c2f BB |
9468 | |
9469 | if (nvpair_type(elem) == DATA_TYPE_STRING) { | |
9470 | ASSERT(proptype == PROP_TYPE_STRING); | |
93cf2076 GW |
9471 | strval = fnvpair_value_string(elem); |
9472 | VERIFY0(zap_update(mos, | |
34dc7c2f | 9473 | spa->spa_pool_props_object, propname, |
93cf2076 | 9474 | 1, strlen(strval) + 1, strval, tx)); |
6f1ffb06 | 9475 | spa_history_log_internal(spa, "set", tx, |
8eae2d21 | 9476 | "%s=%s", elemname, strval); |
34dc7c2f | 9477 | } else if (nvpair_type(elem) == DATA_TYPE_UINT64) { |
93cf2076 | 9478 | intval = fnvpair_value_uint64(elem); |
34dc7c2f BB |
9479 | |
9480 | if (proptype == PROP_TYPE_INDEX) { | |
9481 | const char *unused; | |
93cf2076 GW |
9482 | VERIFY0(zpool_prop_index_to_string( |
9483 | prop, intval, &unused)); | |
34dc7c2f | 9484 | } |
93cf2076 | 9485 | VERIFY0(zap_update(mos, |
34dc7c2f | 9486 | spa->spa_pool_props_object, propname, |
93cf2076 | 9487 | 8, 1, &intval, tx)); |
6f1ffb06 | 9488 | spa_history_log_internal(spa, "set", tx, |
8eae2d21 | 9489 | "%s=%lld", elemname, |
74756182 | 9490 | (longlong_t)intval); |
34dc7c2f | 9491 | |
44f71818 RY |
9492 | switch (prop) { |
9493 | case ZPOOL_PROP_DELEGATION: | |
9494 | spa->spa_delegation = intval; | |
9495 | break; | |
9496 | case ZPOOL_PROP_BOOTFS: | |
9497 | spa->spa_bootfs = intval; | |
9498 | break; | |
9499 | case ZPOOL_PROP_FAILUREMODE: | |
9500 | spa->spa_failmode = intval; | |
9501 | break; | |
9502 | case ZPOOL_PROP_AUTOTRIM: | |
9503 | spa->spa_autotrim = intval; | |
428870ff | 9504 | spa_async_request(spa, |
44f71818 RY |
9505 | SPA_ASYNC_AUTOTRIM_RESTART); |
9506 | break; | |
9507 | case ZPOOL_PROP_AUTOEXPAND: | |
9508 | spa->spa_autoexpand = intval; | |
9509 | if (tx->tx_txg != TXG_INITIAL) | |
9510 | spa_async_request(spa, | |
9511 | SPA_ASYNC_AUTOEXPAND); | |
9512 | break; | |
9513 | case ZPOOL_PROP_MULTIHOST: | |
9514 | spa->spa_multihost = intval; | |
9515 | break; | |
9516 | default: | |
9517 | break; | |
9518 | } | |
9519 | } else { | |
9520 | ASSERT(0); /* not allowed */ | |
34dc7c2f BB |
9521 | } |
9522 | } | |
9523 | ||
34dc7c2f | 9524 | } |
b128c09f BB |
9525 | |
9526 | mutex_exit(&spa->spa_props_lock); | |
34dc7c2f BB |
9527 | } |
9528 | ||
428870ff BB |
9529 | /* |
9530 | * Perform one-time upgrade on-disk changes. spa_version() does not | |
9531 | * reflect the new version this txg, so there must be no changes this | |
9532 | * txg to anything that the upgrade code depends on after it executes. | |
9533 | * Therefore this must be called after dsl_pool_sync() does the sync | |
9534 | * tasks. | |
9535 | */ | |
9536 | static void | |
9537 | spa_sync_upgrades(spa_t *spa, dmu_tx_t *tx) | |
9538 | { | |
8dc2197b SD |
9539 | if (spa_sync_pass(spa) != 1) |
9540 | return; | |
428870ff | 9541 | |
8dc2197b | 9542 | dsl_pool_t *dp = spa->spa_dsl_pool; |
13fe0198 MA |
9543 | rrw_enter(&dp->dp_config_rwlock, RW_WRITER, FTAG); |
9544 | ||
428870ff BB |
9545 | if (spa->spa_ubsync.ub_version < SPA_VERSION_ORIGIN && |
9546 | spa->spa_uberblock.ub_version >= SPA_VERSION_ORIGIN) { | |
9547 | dsl_pool_create_origin(dp, tx); | |
9548 | ||
9549 | /* Keeping the origin open increases spa_minref */ | |
9550 | spa->spa_minref += 3; | |
9551 | } | |
9552 | ||
9553 | if (spa->spa_ubsync.ub_version < SPA_VERSION_NEXT_CLONES && | |
9554 | spa->spa_uberblock.ub_version >= SPA_VERSION_NEXT_CLONES) { | |
9555 | dsl_pool_upgrade_clones(dp, tx); | |
9556 | } | |
9557 | ||
9558 | if (spa->spa_ubsync.ub_version < SPA_VERSION_DIR_CLONES && | |
9559 | spa->spa_uberblock.ub_version >= SPA_VERSION_DIR_CLONES) { | |
9560 | dsl_pool_upgrade_dir_clones(dp, tx); | |
9561 | ||
9562 | /* Keeping the freedir open increases spa_minref */ | |
9563 | spa->spa_minref += 3; | |
9564 | } | |
9ae529ec CS |
9565 | |
9566 | if (spa->spa_ubsync.ub_version < SPA_VERSION_FEATURES && | |
9567 | spa->spa_uberblock.ub_version >= SPA_VERSION_FEATURES) { | |
9568 | spa_feature_create_zap_objects(spa, tx); | |
9569 | } | |
62bdd5eb DL |
9570 | |
9571 | /* | |
9572 | * LZ4_COMPRESS feature's behaviour was changed to activate_on_enable | |
9573 | * when possibility to use lz4 compression for metadata was added | |
9574 | * Old pools that have this feature enabled must be upgraded to have | |
9575 | * this feature active | |
9576 | */ | |
9577 | if (spa->spa_uberblock.ub_version >= SPA_VERSION_FEATURES) { | |
9578 | boolean_t lz4_en = spa_feature_is_enabled(spa, | |
9579 | SPA_FEATURE_LZ4_COMPRESS); | |
9580 | boolean_t lz4_ac = spa_feature_is_active(spa, | |
9581 | SPA_FEATURE_LZ4_COMPRESS); | |
9582 | ||
9583 | if (lz4_en && !lz4_ac) | |
9584 | spa_feature_incr(spa, SPA_FEATURE_LZ4_COMPRESS, tx); | |
9585 | } | |
3c67d83a TH |
9586 | |
9587 | /* | |
9588 | * If we haven't written the salt, do so now. Note that the | |
9589 | * feature may not be activated yet, but that's fine since | |
9590 | * the presence of this ZAP entry is backwards compatible. | |
9591 | */ | |
9592 | if (zap_contains(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, | |
9593 | DMU_POOL_CHECKSUM_SALT) == ENOENT) { | |
9594 | VERIFY0(zap_add(spa->spa_meta_objset, | |
9595 | DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CHECKSUM_SALT, 1, | |
9596 | sizeof (spa->spa_cksum_salt.zcs_bytes), | |
9597 | spa->spa_cksum_salt.zcs_bytes, tx)); | |
9598 | } | |
9599 | ||
13fe0198 | 9600 | rrw_exit(&dp->dp_config_rwlock, FTAG); |
428870ff BB |
9601 | } |
9602 | ||
a1d477c2 MA |
9603 | static void |
9604 | vdev_indirect_state_sync_verify(vdev_t *vd) | |
9605 | { | |
2a8ba608 MM |
9606 | vdev_indirect_mapping_t *vim __maybe_unused = vd->vdev_indirect_mapping; |
9607 | vdev_indirect_births_t *vib __maybe_unused = vd->vdev_indirect_births; | |
a1d477c2 MA |
9608 | |
9609 | if (vd->vdev_ops == &vdev_indirect_ops) { | |
9610 | ASSERT(vim != NULL); | |
9611 | ASSERT(vib != NULL); | |
9612 | } | |
9613 | ||
27f80e85 BB |
9614 | uint64_t obsolete_sm_object = 0; |
9615 | ASSERT0(vdev_obsolete_sm_object(vd, &obsolete_sm_object)); | |
9616 | if (obsolete_sm_object != 0) { | |
a1d477c2 MA |
9617 | ASSERT(vd->vdev_obsolete_sm != NULL); |
9618 | ASSERT(vd->vdev_removing || | |
9619 | vd->vdev_ops == &vdev_indirect_ops); | |
9620 | ASSERT(vdev_indirect_mapping_num_entries(vim) > 0); | |
9621 | ASSERT(vdev_indirect_mapping_bytes_mapped(vim) > 0); | |
27f80e85 | 9622 | ASSERT3U(obsolete_sm_object, ==, |
a1d477c2 MA |
9623 | space_map_object(vd->vdev_obsolete_sm)); |
9624 | ASSERT3U(vdev_indirect_mapping_bytes_mapped(vim), >=, | |
9625 | space_map_allocated(vd->vdev_obsolete_sm)); | |
9626 | } | |
9627 | ASSERT(vd->vdev_obsolete_segments != NULL); | |
9628 | ||
9629 | /* | |
9630 | * Since frees / remaps to an indirect vdev can only | |
9631 | * happen in syncing context, the obsolete segments | |
9632 | * tree must be empty when we start syncing. | |
9633 | */ | |
9634 | ASSERT0(range_tree_space(vd->vdev_obsolete_segments)); | |
9635 | } | |
9636 | ||
34dc7c2f | 9637 | /* |
8dc2197b SD |
9638 | * Set the top-level vdev's max queue depth. Evaluate each top-level's |
9639 | * async write queue depth in case it changed. The max queue depth will | |
9640 | * not change in the middle of syncing out this txg. | |
34dc7c2f | 9641 | */ |
8dc2197b SD |
9642 | static void |
9643 | spa_sync_adjust_vdev_max_queue_depth(spa_t *spa) | |
34dc7c2f | 9644 | { |
8dc2197b SD |
9645 | ASSERT(spa_writeable(spa)); |
9646 | ||
34dc7c2f | 9647 | vdev_t *rvd = spa->spa_root_vdev; |
3dfb57a3 DB |
9648 | uint32_t max_queue_depth = zfs_vdev_async_write_max_active * |
9649 | zfs_vdev_queue_depth_pct / 100; | |
8dc2197b SD |
9650 | metaslab_class_t *normal = spa_normal_class(spa); |
9651 | metaslab_class_t *special = spa_special_class(spa); | |
9652 | metaslab_class_t *dedup = spa_dedup_class(spa); | |
34dc7c2f | 9653 | |
492f64e9 | 9654 | uint64_t slots_per_allocator = 0; |
1c27024e | 9655 | for (int c = 0; c < rvd->vdev_children; c++) { |
3dfb57a3 | 9656 | vdev_t *tvd = rvd->vdev_child[c]; |
cc99f275 | 9657 | |
8dc2197b | 9658 | metaslab_group_t *mg = tvd->vdev_mg; |
cc99f275 DB |
9659 | if (mg == NULL || !metaslab_group_initialized(mg)) |
9660 | continue; | |
3dfb57a3 | 9661 | |
8dc2197b | 9662 | metaslab_class_t *mc = mg->mg_class; |
cc99f275 | 9663 | if (mc != normal && mc != special && mc != dedup) |
3dfb57a3 DB |
9664 | continue; |
9665 | ||
9666 | /* | |
9667 | * It is safe to do a lock-free check here because only async | |
9668 | * allocations look at mg_max_alloc_queue_depth, and async | |
9669 | * allocations all happen from spa_sync(). | |
9670 | */ | |
32d805c3 | 9671 | for (int i = 0; i < mg->mg_allocators; i++) { |
424fd7c3 | 9672 | ASSERT0(zfs_refcount_count( |
32d805c3 MA |
9673 | &(mg->mg_allocator[i].mga_alloc_queue_depth))); |
9674 | } | |
3dfb57a3 | 9675 | mg->mg_max_alloc_queue_depth = max_queue_depth; |
492f64e9 | 9676 | |
32d805c3 MA |
9677 | for (int i = 0; i < mg->mg_allocators; i++) { |
9678 | mg->mg_allocator[i].mga_cur_max_alloc_queue_depth = | |
492f64e9 PD |
9679 | zfs_vdev_def_queue_depth; |
9680 | } | |
9681 | slots_per_allocator += zfs_vdev_def_queue_depth; | |
3dfb57a3 | 9682 | } |
cc99f275 | 9683 | |
492f64e9 | 9684 | for (int i = 0; i < spa->spa_alloc_count; i++) { |
f8020c93 AM |
9685 | ASSERT0(zfs_refcount_count(&normal->mc_allocator[i]. |
9686 | mca_alloc_slots)); | |
9687 | ASSERT0(zfs_refcount_count(&special->mc_allocator[i]. | |
9688 | mca_alloc_slots)); | |
9689 | ASSERT0(zfs_refcount_count(&dedup->mc_allocator[i]. | |
9690 | mca_alloc_slots)); | |
9691 | normal->mc_allocator[i].mca_alloc_max_slots = | |
9692 | slots_per_allocator; | |
9693 | special->mc_allocator[i].mca_alloc_max_slots = | |
9694 | slots_per_allocator; | |
9695 | dedup->mc_allocator[i].mca_alloc_max_slots = | |
9696 | slots_per_allocator; | |
cc99f275 DB |
9697 | } |
9698 | normal->mc_alloc_throttle_enabled = zio_dva_throttle_enabled; | |
9699 | special->mc_alloc_throttle_enabled = zio_dva_throttle_enabled; | |
9700 | dedup->mc_alloc_throttle_enabled = zio_dva_throttle_enabled; | |
8dc2197b SD |
9701 | } |
9702 | ||
9703 | static void | |
9704 | spa_sync_condense_indirect(spa_t *spa, dmu_tx_t *tx) | |
9705 | { | |
9706 | ASSERT(spa_writeable(spa)); | |
3dfb57a3 | 9707 | |
8dc2197b | 9708 | vdev_t *rvd = spa->spa_root_vdev; |
a1d477c2 MA |
9709 | for (int c = 0; c < rvd->vdev_children; c++) { |
9710 | vdev_t *vd = rvd->vdev_child[c]; | |
9711 | vdev_indirect_state_sync_verify(vd); | |
9712 | ||
9713 | if (vdev_indirect_should_condense(vd)) { | |
9714 | spa_condense_indirect_start_sync(vd, tx); | |
9715 | break; | |
9716 | } | |
9717 | } | |
8dc2197b SD |
9718 | } |
9719 | ||
9720 | static void | |
9721 | spa_sync_iterate_to_convergence(spa_t *spa, dmu_tx_t *tx) | |
9722 | { | |
9723 | objset_t *mos = spa->spa_meta_objset; | |
9724 | dsl_pool_t *dp = spa->spa_dsl_pool; | |
9725 | uint64_t txg = tx->tx_txg; | |
9726 | bplist_t *free_bpl = &spa->spa_free_bplist[txg & TXG_MASK]; | |
a1d477c2 | 9727 | |
34dc7c2f | 9728 | do { |
428870ff | 9729 | int pass = ++spa->spa_sync_pass; |
34dc7c2f BB |
9730 | |
9731 | spa_sync_config_object(spa, tx); | |
9732 | spa_sync_aux_dev(spa, &spa->spa_spares, tx, | |
9733 | ZPOOL_CONFIG_SPARES, DMU_POOL_SPARES); | |
9734 | spa_sync_aux_dev(spa, &spa->spa_l2cache, tx, | |
9735 | ZPOOL_CONFIG_L2CACHE, DMU_POOL_L2CACHE); | |
9736 | spa_errlog_sync(spa, txg); | |
9737 | dsl_pool_sync(dp, txg); | |
9738 | ||
93e28d66 SD |
9739 | if (pass < zfs_sync_pass_deferred_free || |
9740 | spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) { | |
9741 | /* | |
9742 | * If the log space map feature is active we don't | |
9743 | * care about deferred frees and the deferred bpobj | |
9744 | * as the log space map should effectively have the | |
9745 | * same results (i.e. appending only to one object). | |
9746 | */ | |
e8b96c60 | 9747 | spa_sync_frees(spa, free_bpl, tx); |
428870ff | 9748 | } else { |
905edb40 MA |
9749 | /* |
9750 | * We can not defer frees in pass 1, because | |
9751 | * we sync the deferred frees later in pass 1. | |
9752 | */ | |
9753 | ASSERT3U(pass, >, 1); | |
37f03da8 | 9754 | bplist_iterate(free_bpl, bpobj_enqueue_alloc_cb, |
e8b96c60 | 9755 | &spa->spa_deferred_bpobj, tx); |
34dc7c2f BB |
9756 | } |
9757 | ||
67a1b037 | 9758 | brt_sync(spa, txg); |
428870ff BB |
9759 | ddt_sync(spa, txg); |
9760 | dsl_scan_sync(dp, tx); | |
482eeef8 | 9761 | dsl_errorscrub_sync(dp, tx); |
8dc2197b SD |
9762 | svr_sync(spa, tx); |
9763 | spa_sync_upgrades(spa, tx); | |
34dc7c2f | 9764 | |
93e28d66 SD |
9765 | spa_flush_metaslabs(spa, tx); |
9766 | ||
8dc2197b | 9767 | vdev_t *vd = NULL; |
a1d477c2 MA |
9768 | while ((vd = txg_list_remove(&spa->spa_vdev_txg_list, txg)) |
9769 | != NULL) | |
428870ff BB |
9770 | vdev_sync(vd, txg); |
9771 | ||
5caeef02 DB |
9772 | if (pass == 1) { |
9773 | /* | |
9774 | * dsl_pool_sync() -> dp_sync_tasks may have dirtied | |
9775 | * the config. If that happens, this txg should not | |
9776 | * be a no-op. So we must sync the config to the MOS | |
9777 | * before checking for no-op. | |
9778 | * | |
9779 | * Note that when the config is dirty, it will | |
9780 | * be written to the MOS (i.e. the MOS will be | |
9781 | * dirtied) every time we call spa_sync_config_object() | |
9782 | * in this txg. Therefore we can't call this after | |
9783 | * dsl_pool_sync() every pass, because it would | |
9784 | * prevent us from converging, since we'd dirty | |
9785 | * the MOS every pass. | |
9786 | * | |
9787 | * Sync tasks can only be processed in pass 1, so | |
9788 | * there's no need to do this in later passes. | |
9789 | */ | |
9790 | spa_sync_config_object(spa, tx); | |
9791 | } | |
9792 | ||
8dc2197b SD |
9793 | /* |
9794 | * Note: We need to check if the MOS is dirty because we could | |
9795 | * have marked the MOS dirty without updating the uberblock | |
9796 | * (e.g. if we have sync tasks but no dirty user data). We need | |
9797 | * to check the uberblock's rootbp because it is updated if we | |
9798 | * have synced out dirty data (though in this case the MOS will | |
9799 | * most likely also be dirty due to second order effects, we | |
9800 | * don't want to rely on that here). | |
9801 | */ | |
9802 | if (pass == 1 && | |
9803 | spa->spa_uberblock.ub_rootbp.blk_birth < txg && | |
9804 | !dmu_objset_is_dirty(mos, txg)) { | |
905edb40 | 9805 | /* |
8dc2197b SD |
9806 | * Nothing changed on the first pass, therefore this |
9807 | * TXG is a no-op. Avoid syncing deferred frees, so | |
9808 | * that we can keep this TXG as a no-op. | |
905edb40 | 9809 | */ |
8dc2197b SD |
9810 | ASSERT(txg_list_empty(&dp->dp_dirty_datasets, txg)); |
9811 | ASSERT(txg_list_empty(&dp->dp_dirty_dirs, txg)); | |
9812 | ASSERT(txg_list_empty(&dp->dp_sync_tasks, txg)); | |
9813 | ASSERT(txg_list_empty(&dp->dp_early_sync_tasks, txg)); | |
9814 | break; | |
905edb40 | 9815 | } |
34dc7c2f | 9816 | |
8dc2197b | 9817 | spa_sync_deferred_frees(spa, tx); |
428870ff | 9818 | } while (dmu_objset_is_dirty(mos, txg)); |
8dc2197b | 9819 | } |
34dc7c2f | 9820 | |
8dc2197b SD |
9821 | /* |
9822 | * Rewrite the vdev configuration (which includes the uberblock) to | |
9823 | * commit the transaction group. | |
9824 | * | |
9825 | * If there are no dirty vdevs, we sync the uberblock to a few random | |
9826 | * top-level vdevs that are known to be visible in the config cache | |
9827 | * (see spa_vdev_add() for a complete description). If there *are* dirty | |
9828 | * vdevs, sync the uberblock to all vdevs. | |
9829 | */ | |
9830 | static void | |
9831 | spa_sync_rewrite_vdev_config(spa_t *spa, dmu_tx_t *tx) | |
9832 | { | |
9833 | vdev_t *rvd = spa->spa_root_vdev; | |
9834 | uint64_t txg = tx->tx_txg; | |
a1d477c2 | 9835 | |
b128c09f | 9836 | for (;;) { |
8dc2197b SD |
9837 | int error = 0; |
9838 | ||
b128c09f BB |
9839 | /* |
9840 | * We hold SCL_STATE to prevent vdev open/close/etc. | |
9841 | * while we're attempting to write the vdev labels. | |
9842 | */ | |
9843 | spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); | |
9844 | ||
9845 | if (list_is_empty(&spa->spa_config_dirty_list)) { | |
d2734cce | 9846 | vdev_t *svd[SPA_SYNC_MIN_VDEVS] = { NULL }; |
b128c09f BB |
9847 | int svdcount = 0; |
9848 | int children = rvd->vdev_children; | |
29274c9f | 9849 | int c0 = random_in_range(children); |
b128c09f | 9850 | |
1c27024e | 9851 | for (int c = 0; c < children; c++) { |
8dc2197b SD |
9852 | vdev_t *vd = |
9853 | rvd->vdev_child[(c0 + c) % children]; | |
d2734cce SD |
9854 | |
9855 | /* Stop when revisiting the first vdev */ | |
9856 | if (c > 0 && svd[0] == vd) | |
9857 | break; | |
9858 | ||
8dc2197b SD |
9859 | if (vd->vdev_ms_array == 0 || |
9860 | vd->vdev_islog || | |
a1d477c2 | 9861 | !vdev_is_concrete(vd)) |
b128c09f | 9862 | continue; |
d2734cce | 9863 | |
b128c09f | 9864 | svd[svdcount++] = vd; |
6cb8e530 | 9865 | if (svdcount == SPA_SYNC_MIN_VDEVS) |
b128c09f BB |
9866 | break; |
9867 | } | |
b6fcb792 | 9868 | error = vdev_config_sync(svd, svdcount, txg); |
b128c09f BB |
9869 | } else { |
9870 | error = vdev_config_sync(rvd->vdev_child, | |
b6fcb792 | 9871 | rvd->vdev_children, txg); |
34dc7c2f | 9872 | } |
34dc7c2f | 9873 | |
3bc7e0fb GW |
9874 | if (error == 0) |
9875 | spa->spa_last_synced_guid = rvd->vdev_guid; | |
9876 | ||
b128c09f BB |
9877 | spa_config_exit(spa, SCL_STATE, FTAG); |
9878 | ||
9879 | if (error == 0) | |
9880 | break; | |
cec3a0a1 | 9881 | zio_suspend(spa, NULL, ZIO_SUSPEND_IOERR); |
b128c09f BB |
9882 | zio_resume_wait(spa); |
9883 | } | |
8dc2197b SD |
9884 | } |
9885 | ||
9886 | /* | |
9887 | * Sync the specified transaction group. New blocks may be dirtied as | |
9888 | * part of the process, so we iterate until it converges. | |
9889 | */ | |
9890 | void | |
9891 | spa_sync(spa_t *spa, uint64_t txg) | |
9892 | { | |
9893 | vdev_t *vd = NULL; | |
9894 | ||
9895 | VERIFY(spa_writeable(spa)); | |
9896 | ||
9897 | /* | |
9898 | * Wait for i/os issued in open context that need to complete | |
9899 | * before this txg syncs. | |
9900 | */ | |
9901 | (void) zio_wait(spa->spa_txg_zio[txg & TXG_MASK]); | |
9902 | spa->spa_txg_zio[txg & TXG_MASK] = zio_root(spa, NULL, NULL, | |
9903 | ZIO_FLAG_CANFAIL); | |
9904 | ||
67a1b037 PJD |
9905 | /* |
9906 | * Now that there can be no more cloning in this transaction group, | |
9907 | * but we are still before issuing frees, we can process pending BRT | |
9908 | * updates. | |
9909 | */ | |
9910 | brt_pending_apply(spa, txg); | |
9911 | ||
8dc2197b SD |
9912 | /* |
9913 | * Lock out configuration changes. | |
9914 | */ | |
9915 | spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); | |
9916 | ||
9917 | spa->spa_syncing_txg = txg; | |
9918 | spa->spa_sync_pass = 0; | |
9919 | ||
9920 | for (int i = 0; i < spa->spa_alloc_count; i++) { | |
1b50749c AM |
9921 | mutex_enter(&spa->spa_allocs[i].spaa_lock); |
9922 | VERIFY0(avl_numnodes(&spa->spa_allocs[i].spaa_tree)); | |
9923 | mutex_exit(&spa->spa_allocs[i].spaa_lock); | |
8dc2197b SD |
9924 | } |
9925 | ||
9926 | /* | |
9927 | * If there are any pending vdev state changes, convert them | |
9928 | * into config changes that go out with this transaction group. | |
9929 | */ | |
9930 | spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); | |
9f08b6e3 RY |
9931 | while ((vd = list_head(&spa->spa_state_dirty_list)) != NULL) { |
9932 | /* Avoid holding the write lock unless actually necessary */ | |
9933 | if (vd->vdev_aux == NULL) { | |
9934 | vdev_state_clean(vd); | |
9935 | vdev_config_dirty(vd); | |
9936 | continue; | |
9937 | } | |
8dc2197b SD |
9938 | /* |
9939 | * We need the write lock here because, for aux vdevs, | |
9940 | * calling vdev_config_dirty() modifies sav_config. | |
9941 | * This is ugly and will become unnecessary when we | |
9942 | * eliminate the aux vdev wart by integrating all vdevs | |
9943 | * into the root vdev tree. | |
9944 | */ | |
9945 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
9946 | spa_config_enter(spa, SCL_CONFIG | SCL_STATE, FTAG, RW_WRITER); | |
9947 | while ((vd = list_head(&spa->spa_state_dirty_list)) != NULL) { | |
9948 | vdev_state_clean(vd); | |
9949 | vdev_config_dirty(vd); | |
9950 | } | |
9951 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
9952 | spa_config_enter(spa, SCL_CONFIG | SCL_STATE, FTAG, RW_READER); | |
9953 | } | |
9954 | spa_config_exit(spa, SCL_STATE, FTAG); | |
9955 | ||
9956 | dsl_pool_t *dp = spa->spa_dsl_pool; | |
9957 | dmu_tx_t *tx = dmu_tx_create_assigned(dp, txg); | |
9958 | ||
9959 | spa->spa_sync_starttime = gethrtime(); | |
9960 | taskq_cancel_id(system_delay_taskq, spa->spa_deadman_tqid); | |
9961 | spa->spa_deadman_tqid = taskq_dispatch_delay(system_delay_taskq, | |
9962 | spa_deadman, spa, TQ_SLEEP, ddi_get_lbolt() + | |
9963 | NSEC_TO_TICK(spa->spa_deadman_synctime)); | |
9964 | ||
9965 | /* | |
9966 | * If we are upgrading to SPA_VERSION_RAIDZ_DEFLATE this txg, | |
9967 | * set spa_deflate if we have no raid-z vdevs. | |
9968 | */ | |
9969 | if (spa->spa_ubsync.ub_version < SPA_VERSION_RAIDZ_DEFLATE && | |
9970 | spa->spa_uberblock.ub_version >= SPA_VERSION_RAIDZ_DEFLATE) { | |
9971 | vdev_t *rvd = spa->spa_root_vdev; | |
9972 | ||
9973 | int i; | |
9974 | for (i = 0; i < rvd->vdev_children; i++) { | |
9975 | vd = rvd->vdev_child[i]; | |
9976 | if (vd->vdev_deflate_ratio != SPA_MINBLOCKSIZE) | |
9977 | break; | |
9978 | } | |
9979 | if (i == rvd->vdev_children) { | |
9980 | spa->spa_deflate = TRUE; | |
9981 | VERIFY0(zap_add(spa->spa_meta_objset, | |
9982 | DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_DEFLATE, | |
9983 | sizeof (uint64_t), 1, &spa->spa_deflate, tx)); | |
9984 | } | |
9985 | } | |
9986 | ||
9987 | spa_sync_adjust_vdev_max_queue_depth(spa); | |
9988 | ||
9989 | spa_sync_condense_indirect(spa, tx); | |
9990 | ||
9991 | spa_sync_iterate_to_convergence(spa, tx); | |
9992 | ||
9993 | #ifdef ZFS_DEBUG | |
9994 | if (!list_is_empty(&spa->spa_config_dirty_list)) { | |
9995 | /* | |
9996 | * Make sure that the number of ZAPs for all the vdevs matches | |
9997 | * the number of ZAPs in the per-vdev ZAP list. This only gets | |
9998 | * called if the config is dirty; otherwise there may be | |
9999 | * outstanding AVZ operations that weren't completed in | |
10000 | * spa_sync_config_object. | |
10001 | */ | |
10002 | uint64_t all_vdev_zap_entry_count; | |
10003 | ASSERT0(zap_count(spa->spa_meta_objset, | |
10004 | spa->spa_all_vdev_zaps, &all_vdev_zap_entry_count)); | |
10005 | ASSERT3U(vdev_count_verify_zaps(spa->spa_root_vdev), ==, | |
10006 | all_vdev_zap_entry_count); | |
10007 | } | |
10008 | #endif | |
10009 | ||
10010 | if (spa->spa_vdev_removal != NULL) { | |
10011 | ASSERT0(spa->spa_vdev_removal->svr_bytes_done[txg & TXG_MASK]); | |
10012 | } | |
10013 | ||
10014 | spa_sync_rewrite_vdev_config(spa, tx); | |
34dc7c2f BB |
10015 | dmu_tx_commit(tx); |
10016 | ||
57ddcda1 | 10017 | taskq_cancel_id(system_delay_taskq, spa->spa_deadman_tqid); |
cc92e9d0 GW |
10018 | spa->spa_deadman_tqid = 0; |
10019 | ||
34dc7c2f BB |
10020 | /* |
10021 | * Clear the dirty config list. | |
10022 | */ | |
b128c09f | 10023 | while ((vd = list_head(&spa->spa_config_dirty_list)) != NULL) |
34dc7c2f BB |
10024 | vdev_config_clean(vd); |
10025 | ||
10026 | /* | |
10027 | * Now that the new config has synced transactionally, | |
10028 | * let it become visible to the config cache. | |
10029 | */ | |
10030 | if (spa->spa_config_syncing != NULL) { | |
10031 | spa_config_set(spa, spa->spa_config_syncing); | |
10032 | spa->spa_config_txg = txg; | |
10033 | spa->spa_config_syncing = NULL; | |
10034 | } | |
10035 | ||
428870ff | 10036 | dsl_pool_sync_done(dp, txg); |
34dc7c2f | 10037 | |
492f64e9 | 10038 | for (int i = 0; i < spa->spa_alloc_count; i++) { |
1b50749c AM |
10039 | mutex_enter(&spa->spa_allocs[i].spaa_lock); |
10040 | VERIFY0(avl_numnodes(&spa->spa_allocs[i].spaa_tree)); | |
10041 | mutex_exit(&spa->spa_allocs[i].spaa_lock); | |
492f64e9 | 10042 | } |
3dfb57a3 | 10043 | |
34dc7c2f BB |
10044 | /* |
10045 | * Update usable space statistics. | |
10046 | */ | |
619f0976 GW |
10047 | while ((vd = txg_list_remove(&spa->spa_vdev_txg_list, TXG_CLEAN(txg))) |
10048 | != NULL) | |
34dc7c2f | 10049 | vdev_sync_done(vd, txg); |
f09fda50 PD |
10050 | |
10051 | metaslab_class_evict_old(spa->spa_normal_class, txg); | |
10052 | metaslab_class_evict_old(spa->spa_log_class, txg); | |
10053 | ||
93e28d66 | 10054 | spa_sync_close_syncing_log_sm(spa); |
34dc7c2f | 10055 | |
428870ff BB |
10056 | spa_update_dspace(spa); |
10057 | ||
65d10bd8 KJ |
10058 | if (spa_get_autotrim(spa) == SPA_AUTOTRIM_ON) |
10059 | vdev_autotrim_kick(spa); | |
10060 | ||
34dc7c2f BB |
10061 | /* |
10062 | * It had better be the case that we didn't dirty anything | |
10063 | * since vdev_config_sync(). | |
10064 | */ | |
10065 | ASSERT(txg_list_empty(&dp->dp_dirty_datasets, txg)); | |
10066 | ASSERT(txg_list_empty(&dp->dp_dirty_dirs, txg)); | |
10067 | ASSERT(txg_list_empty(&spa->spa_vdev_txg_list, txg)); | |
428870ff | 10068 | |
d2734cce SD |
10069 | while (zfs_pause_spa_sync) |
10070 | delay(1); | |
10071 | ||
428870ff | 10072 | spa->spa_sync_pass = 0; |
34dc7c2f | 10073 | |
55922e73 GW |
10074 | /* |
10075 | * Update the last synced uberblock here. We want to do this at | |
10076 | * the end of spa_sync() so that consumers of spa_last_synced_txg() | |
10077 | * will be guaranteed that all the processing associated with | |
10078 | * that txg has been completed. | |
10079 | */ | |
10080 | spa->spa_ubsync = spa->spa_uberblock; | |
b128c09f | 10081 | spa_config_exit(spa, SCL_CONFIG, FTAG); |
34dc7c2f | 10082 | |
428870ff BB |
10083 | spa_handle_ignored_writes(spa); |
10084 | ||
34dc7c2f BB |
10085 | /* |
10086 | * If any async tasks have been requested, kick them off. | |
10087 | */ | |
10088 | spa_async_dispatch(spa); | |
10089 | } | |
10090 | ||
10091 | /* | |
10092 | * Sync all pools. We don't want to hold the namespace lock across these | |
10093 | * operations, so we take a reference on the spa_t and drop the lock during the | |
10094 | * sync. | |
10095 | */ | |
10096 | void | |
10097 | spa_sync_allpools(void) | |
10098 | { | |
10099 | spa_t *spa = NULL; | |
10100 | mutex_enter(&spa_namespace_lock); | |
10101 | while ((spa = spa_next(spa)) != NULL) { | |
572e2857 BB |
10102 | if (spa_state(spa) != POOL_STATE_ACTIVE || |
10103 | !spa_writeable(spa) || spa_suspended(spa)) | |
34dc7c2f BB |
10104 | continue; |
10105 | spa_open_ref(spa, FTAG); | |
10106 | mutex_exit(&spa_namespace_lock); | |
10107 | txg_wait_synced(spa_get_dsl(spa), 0); | |
10108 | mutex_enter(&spa_namespace_lock); | |
10109 | spa_close(spa, FTAG); | |
10110 | } | |
10111 | mutex_exit(&spa_namespace_lock); | |
10112 | } | |
10113 | ||
3bd4df38 EN |
10114 | taskq_t * |
10115 | spa_sync_tq_create(spa_t *spa, const char *name) | |
10116 | { | |
10117 | kthread_t **kthreads; | |
10118 | ||
10119 | ASSERT(spa->spa_sync_tq == NULL); | |
10120 | ASSERT3S(spa->spa_alloc_count, <=, boot_ncpus); | |
10121 | ||
10122 | /* | |
10123 | * - do not allow more allocators than cpus. | |
10124 | * - there may be more cpus than allocators. | |
10125 | * - do not allow more sync taskq threads than allocators or cpus. | |
10126 | */ | |
10127 | int nthreads = spa->spa_alloc_count; | |
10128 | spa->spa_syncthreads = kmem_zalloc(sizeof (spa_syncthread_info_t) * | |
10129 | nthreads, KM_SLEEP); | |
10130 | ||
10131 | spa->spa_sync_tq = taskq_create_synced(name, nthreads, minclsyspri, | |
10132 | nthreads, INT_MAX, TASKQ_PREPOPULATE, &kthreads); | |
10133 | VERIFY(spa->spa_sync_tq != NULL); | |
10134 | VERIFY(kthreads != NULL); | |
10135 | ||
10136 | spa_taskqs_t *tqs = | |
10137 | &spa->spa_zio_taskq[ZIO_TYPE_WRITE][ZIO_TASKQ_ISSUE]; | |
10138 | ||
10139 | spa_syncthread_info_t *ti = spa->spa_syncthreads; | |
10140 | for (int i = 0, w = 0; i < nthreads; i++, w++, ti++) { | |
10141 | ti->sti_thread = kthreads[i]; | |
10142 | if (w == tqs->stqs_count) { | |
10143 | w = 0; | |
10144 | } | |
10145 | ti->sti_wr_iss_tq = tqs->stqs_taskq[w]; | |
10146 | } | |
10147 | ||
10148 | kmem_free(kthreads, sizeof (*kthreads) * nthreads); | |
10149 | return (spa->spa_sync_tq); | |
10150 | } | |
10151 | ||
10152 | void | |
10153 | spa_sync_tq_destroy(spa_t *spa) | |
10154 | { | |
10155 | ASSERT(spa->spa_sync_tq != NULL); | |
10156 | ||
10157 | taskq_wait(spa->spa_sync_tq); | |
10158 | taskq_destroy(spa->spa_sync_tq); | |
10159 | kmem_free(spa->spa_syncthreads, | |
10160 | sizeof (spa_syncthread_info_t) * spa->spa_alloc_count); | |
10161 | spa->spa_sync_tq = NULL; | |
10162 | } | |
10163 | ||
10164 | void | |
10165 | spa_select_allocator(zio_t *zio) | |
10166 | { | |
10167 | zbookmark_phys_t *bm = &zio->io_bookmark; | |
10168 | spa_t *spa = zio->io_spa; | |
10169 | ||
10170 | ASSERT(zio->io_type == ZIO_TYPE_WRITE); | |
10171 | ||
10172 | /* | |
10173 | * A gang block (for example) may have inherited its parent's | |
10174 | * allocator, in which case there is nothing further to do here. | |
10175 | */ | |
10176 | if (ZIO_HAS_ALLOCATOR(zio)) | |
10177 | return; | |
10178 | ||
10179 | ASSERT(spa != NULL); | |
10180 | ASSERT(bm != NULL); | |
10181 | ||
10182 | /* | |
10183 | * First try to use an allocator assigned to the syncthread, and set | |
10184 | * the corresponding write issue taskq for the allocator. | |
10185 | * Note, we must have an open pool to do this. | |
10186 | */ | |
10187 | if (spa->spa_sync_tq != NULL) { | |
10188 | spa_syncthread_info_t *ti = spa->spa_syncthreads; | |
10189 | for (int i = 0; i < spa->spa_alloc_count; i++, ti++) { | |
10190 | if (ti->sti_thread == curthread) { | |
10191 | zio->io_allocator = i; | |
10192 | zio->io_wr_iss_tq = ti->sti_wr_iss_tq; | |
10193 | return; | |
10194 | } | |
10195 | } | |
10196 | } | |
10197 | ||
10198 | /* | |
10199 | * We want to try to use as many allocators as possible to help improve | |
10200 | * performance, but we also want logically adjacent IOs to be physically | |
10201 | * adjacent to improve sequential read performance. We chunk each object | |
10202 | * into 2^20 block regions, and then hash based on the objset, object, | |
10203 | * level, and region to accomplish both of these goals. | |
10204 | */ | |
10205 | uint64_t hv = cityhash4(bm->zb_objset, bm->zb_object, bm->zb_level, | |
10206 | bm->zb_blkid >> 20); | |
10207 | ||
10208 | zio->io_allocator = (uint_t)hv % spa->spa_alloc_count; | |
10209 | zio->io_wr_iss_tq = NULL; | |
10210 | } | |
10211 | ||
34dc7c2f BB |
10212 | /* |
10213 | * ========================================================================== | |
10214 | * Miscellaneous routines | |
10215 | * ========================================================================== | |
10216 | */ | |
10217 | ||
10218 | /* | |
10219 | * Remove all pools in the system. | |
10220 | */ | |
10221 | void | |
10222 | spa_evict_all(void) | |
10223 | { | |
10224 | spa_t *spa; | |
10225 | ||
10226 | /* | |
10227 | * Remove all cached state. All pools should be closed now, | |
10228 | * so every spa in the AVL tree should be unreferenced. | |
10229 | */ | |
10230 | mutex_enter(&spa_namespace_lock); | |
10231 | while ((spa = spa_next(NULL)) != NULL) { | |
10232 | /* | |
10233 | * Stop async tasks. The async thread may need to detach | |
10234 | * a device that's been replaced, which requires grabbing | |
10235 | * spa_namespace_lock, so we must drop it here. | |
10236 | */ | |
10237 | spa_open_ref(spa, FTAG); | |
10238 | mutex_exit(&spa_namespace_lock); | |
10239 | spa_async_suspend(spa); | |
10240 | mutex_enter(&spa_namespace_lock); | |
34dc7c2f BB |
10241 | spa_close(spa, FTAG); |
10242 | ||
10243 | if (spa->spa_state != POOL_STATE_UNINITIALIZED) { | |
10244 | spa_unload(spa); | |
10245 | spa_deactivate(spa); | |
10246 | } | |
10247 | spa_remove(spa); | |
10248 | } | |
10249 | mutex_exit(&spa_namespace_lock); | |
10250 | } | |
10251 | ||
10252 | vdev_t * | |
9babb374 | 10253 | spa_lookup_by_guid(spa_t *spa, uint64_t guid, boolean_t aux) |
34dc7c2f | 10254 | { |
b128c09f BB |
10255 | vdev_t *vd; |
10256 | int i; | |
10257 | ||
10258 | if ((vd = vdev_lookup_by_guid(spa->spa_root_vdev, guid)) != NULL) | |
10259 | return (vd); | |
10260 | ||
9babb374 | 10261 | if (aux) { |
b128c09f BB |
10262 | for (i = 0; i < spa->spa_l2cache.sav_count; i++) { |
10263 | vd = spa->spa_l2cache.sav_vdevs[i]; | |
9babb374 BB |
10264 | if (vd->vdev_guid == guid) |
10265 | return (vd); | |
10266 | } | |
10267 | ||
10268 | for (i = 0; i < spa->spa_spares.sav_count; i++) { | |
10269 | vd = spa->spa_spares.sav_vdevs[i]; | |
b128c09f BB |
10270 | if (vd->vdev_guid == guid) |
10271 | return (vd); | |
10272 | } | |
10273 | } | |
10274 | ||
10275 | return (NULL); | |
34dc7c2f BB |
10276 | } |
10277 | ||
10278 | void | |
10279 | spa_upgrade(spa_t *spa, uint64_t version) | |
10280 | { | |
572e2857 BB |
10281 | ASSERT(spa_writeable(spa)); |
10282 | ||
b128c09f | 10283 | spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); |
34dc7c2f BB |
10284 | |
10285 | /* | |
10286 | * This should only be called for a non-faulted pool, and since a | |
10287 | * future version would result in an unopenable pool, this shouldn't be | |
10288 | * possible. | |
10289 | */ | |
8dca0a9a | 10290 | ASSERT(SPA_VERSION_IS_SUPPORTED(spa->spa_uberblock.ub_version)); |
9b67f605 | 10291 | ASSERT3U(version, >=, spa->spa_uberblock.ub_version); |
34dc7c2f BB |
10292 | |
10293 | spa->spa_uberblock.ub_version = version; | |
10294 | vdev_config_dirty(spa->spa_root_vdev); | |
10295 | ||
b128c09f | 10296 | spa_config_exit(spa, SCL_ALL, FTAG); |
34dc7c2f BB |
10297 | |
10298 | txg_wait_synced(spa_get_dsl(spa), 0); | |
10299 | } | |
10300 | ||
49d42425 FU |
10301 | static boolean_t |
10302 | spa_has_aux_vdev(spa_t *spa, uint64_t guid, spa_aux_vdev_t *sav) | |
34dc7c2f | 10303 | { |
14e4e3cb | 10304 | (void) spa; |
34dc7c2f | 10305 | int i; |
49d42425 | 10306 | uint64_t vdev_guid; |
34dc7c2f BB |
10307 | |
10308 | for (i = 0; i < sav->sav_count; i++) | |
10309 | if (sav->sav_vdevs[i]->vdev_guid == guid) | |
10310 | return (B_TRUE); | |
10311 | ||
10312 | for (i = 0; i < sav->sav_npending; i++) { | |
10313 | if (nvlist_lookup_uint64(sav->sav_pending[i], ZPOOL_CONFIG_GUID, | |
49d42425 | 10314 | &vdev_guid) == 0 && vdev_guid == guid) |
34dc7c2f BB |
10315 | return (B_TRUE); |
10316 | } | |
10317 | ||
10318 | return (B_FALSE); | |
10319 | } | |
10320 | ||
49d42425 FU |
10321 | boolean_t |
10322 | spa_has_l2cache(spa_t *spa, uint64_t guid) | |
10323 | { | |
10324 | return (spa_has_aux_vdev(spa, guid, &spa->spa_l2cache)); | |
10325 | } | |
10326 | ||
10327 | boolean_t | |
10328 | spa_has_spare(spa_t *spa, uint64_t guid) | |
10329 | { | |
10330 | return (spa_has_aux_vdev(spa, guid, &spa->spa_spares)); | |
10331 | } | |
10332 | ||
b128c09f BB |
10333 | /* |
10334 | * Check if a pool has an active shared spare device. | |
10335 | * Note: reference count of an active spare is 2, as a spare and as a replace | |
10336 | */ | |
10337 | static boolean_t | |
10338 | spa_has_active_shared_spare(spa_t *spa) | |
10339 | { | |
10340 | int i, refcnt; | |
10341 | uint64_t pool; | |
10342 | spa_aux_vdev_t *sav = &spa->spa_spares; | |
10343 | ||
10344 | for (i = 0; i < sav->sav_count; i++) { | |
10345 | if (spa_spare_exists(sav->sav_vdevs[i]->vdev_guid, &pool, | |
10346 | &refcnt) && pool != 0ULL && pool == spa_guid(spa) && | |
10347 | refcnt > 2) | |
10348 | return (B_TRUE); | |
10349 | } | |
10350 | ||
10351 | return (B_FALSE); | |
10352 | } | |
10353 | ||
93e28d66 SD |
10354 | uint64_t |
10355 | spa_total_metaslabs(spa_t *spa) | |
10356 | { | |
10357 | vdev_t *rvd = spa->spa_root_vdev; | |
10358 | ||
10359 | uint64_t m = 0; | |
10360 | for (uint64_t c = 0; c < rvd->vdev_children; c++) { | |
10361 | vdev_t *vd = rvd->vdev_child[c]; | |
10362 | if (!vdev_is_concrete(vd)) | |
10363 | continue; | |
10364 | m += vd->vdev_ms_count; | |
10365 | } | |
10366 | return (m); | |
10367 | } | |
10368 | ||
e60e158e JG |
10369 | /* |
10370 | * Notify any waiting threads that some activity has switched from being in- | |
10371 | * progress to not-in-progress so that the thread can wake up and determine | |
10372 | * whether it is finished waiting. | |
10373 | */ | |
10374 | void | |
10375 | spa_notify_waiters(spa_t *spa) | |
10376 | { | |
10377 | /* | |
10378 | * Acquiring spa_activities_lock here prevents the cv_broadcast from | |
10379 | * happening between the waiting thread's check and cv_wait. | |
10380 | */ | |
10381 | mutex_enter(&spa->spa_activities_lock); | |
10382 | cv_broadcast(&spa->spa_activities_cv); | |
10383 | mutex_exit(&spa->spa_activities_lock); | |
10384 | } | |
10385 | ||
10386 | /* | |
10387 | * Notify any waiting threads that the pool is exporting, and then block until | |
10388 | * they are finished using the spa_t. | |
10389 | */ | |
10390 | void | |
10391 | spa_wake_waiters(spa_t *spa) | |
10392 | { | |
10393 | mutex_enter(&spa->spa_activities_lock); | |
10394 | spa->spa_waiters_cancel = B_TRUE; | |
10395 | cv_broadcast(&spa->spa_activities_cv); | |
10396 | while (spa->spa_waiters != 0) | |
10397 | cv_wait(&spa->spa_waiters_cv, &spa->spa_activities_lock); | |
10398 | spa->spa_waiters_cancel = B_FALSE; | |
10399 | mutex_exit(&spa->spa_activities_lock); | |
10400 | } | |
10401 | ||
2288d419 | 10402 | /* Whether the vdev or any of its descendants are being initialized/trimmed. */ |
e60e158e | 10403 | static boolean_t |
2288d419 | 10404 | spa_vdev_activity_in_progress_impl(vdev_t *vd, zpool_wait_activity_t activity) |
e60e158e JG |
10405 | { |
10406 | spa_t *spa = vd->vdev_spa; | |
e60e158e JG |
10407 | |
10408 | ASSERT(spa_config_held(spa, SCL_CONFIG | SCL_STATE, RW_READER)); | |
10409 | ASSERT(MUTEX_HELD(&spa->spa_activities_lock)); | |
2288d419 BB |
10410 | ASSERT(activity == ZPOOL_WAIT_INITIALIZE || |
10411 | activity == ZPOOL_WAIT_TRIM); | |
10412 | ||
10413 | kmutex_t *lock = activity == ZPOOL_WAIT_INITIALIZE ? | |
10414 | &vd->vdev_initialize_lock : &vd->vdev_trim_lock; | |
e60e158e JG |
10415 | |
10416 | mutex_exit(&spa->spa_activities_lock); | |
2288d419 | 10417 | mutex_enter(lock); |
e60e158e JG |
10418 | mutex_enter(&spa->spa_activities_lock); |
10419 | ||
2288d419 BB |
10420 | boolean_t in_progress = (activity == ZPOOL_WAIT_INITIALIZE) ? |
10421 | (vd->vdev_initialize_state == VDEV_INITIALIZE_ACTIVE) : | |
10422 | (vd->vdev_trim_state == VDEV_TRIM_ACTIVE); | |
10423 | mutex_exit(lock); | |
e60e158e | 10424 | |
2288d419 | 10425 | if (in_progress) |
e60e158e JG |
10426 | return (B_TRUE); |
10427 | ||
10428 | for (int i = 0; i < vd->vdev_children; i++) { | |
2288d419 BB |
10429 | if (spa_vdev_activity_in_progress_impl(vd->vdev_child[i], |
10430 | activity)) | |
e60e158e JG |
10431 | return (B_TRUE); |
10432 | } | |
10433 | ||
10434 | return (B_FALSE); | |
10435 | } | |
10436 | ||
10437 | /* | |
10438 | * If use_guid is true, this checks whether the vdev specified by guid is | |
2288d419 BB |
10439 | * being initialized/trimmed. Otherwise, it checks whether any vdev in the pool |
10440 | * is being initialized/trimmed. The caller must hold the config lock and | |
10441 | * spa_activities_lock. | |
e60e158e JG |
10442 | */ |
10443 | static int | |
2288d419 BB |
10444 | spa_vdev_activity_in_progress(spa_t *spa, boolean_t use_guid, uint64_t guid, |
10445 | zpool_wait_activity_t activity, boolean_t *in_progress) | |
e60e158e JG |
10446 | { |
10447 | mutex_exit(&spa->spa_activities_lock); | |
10448 | spa_config_enter(spa, SCL_CONFIG | SCL_STATE, FTAG, RW_READER); | |
10449 | mutex_enter(&spa->spa_activities_lock); | |
10450 | ||
10451 | vdev_t *vd; | |
10452 | if (use_guid) { | |
10453 | vd = spa_lookup_by_guid(spa, guid, B_FALSE); | |
10454 | if (vd == NULL || !vd->vdev_ops->vdev_op_leaf) { | |
10455 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
10456 | return (EINVAL); | |
10457 | } | |
10458 | } else { | |
10459 | vd = spa->spa_root_vdev; | |
10460 | } | |
10461 | ||
2288d419 | 10462 | *in_progress = spa_vdev_activity_in_progress_impl(vd, activity); |
e60e158e JG |
10463 | |
10464 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
10465 | return (0); | |
10466 | } | |
10467 | ||
10468 | /* | |
10469 | * Locking for waiting threads | |
10470 | * --------------------------- | |
10471 | * | |
10472 | * Waiting threads need a way to check whether a given activity is in progress, | |
10473 | * and then, if it is, wait for it to complete. Each activity will have some | |
10474 | * in-memory representation of the relevant on-disk state which can be used to | |
10475 | * determine whether or not the activity is in progress. The in-memory state and | |
10476 | * the locking used to protect it will be different for each activity, and may | |
10477 | * not be suitable for use with a cvar (e.g., some state is protected by the | |
10478 | * config lock). To allow waiting threads to wait without any races, another | |
10479 | * lock, spa_activities_lock, is used. | |
10480 | * | |
10481 | * When the state is checked, both the activity-specific lock (if there is one) | |
10482 | * and spa_activities_lock are held. In some cases, the activity-specific lock | |
10483 | * is acquired explicitly (e.g. the config lock). In others, the locking is | |
10484 | * internal to some check (e.g. bpobj_is_empty). After checking, the waiting | |
10485 | * thread releases the activity-specific lock and, if the activity is in | |
10486 | * progress, then cv_waits using spa_activities_lock. | |
10487 | * | |
10488 | * The waiting thread is woken when another thread, one completing some | |
10489 | * activity, updates the state of the activity and then calls | |
10490 | * spa_notify_waiters, which will cv_broadcast. This 'completing' thread only | |
10491 | * needs to hold its activity-specific lock when updating the state, and this | |
10492 | * lock can (but doesn't have to) be dropped before calling spa_notify_waiters. | |
10493 | * | |
10494 | * Because spa_notify_waiters acquires spa_activities_lock before broadcasting, | |
10495 | * and because it is held when the waiting thread checks the state of the | |
10496 | * activity, it can never be the case that the completing thread both updates | |
10497 | * the activity state and cv_broadcasts in between the waiting thread's check | |
10498 | * and cv_wait. Thus, a waiting thread can never miss a wakeup. | |
10499 | * | |
10500 | * In order to prevent deadlock, when the waiting thread does its check, in some | |
10501 | * cases it will temporarily drop spa_activities_lock in order to acquire the | |
10502 | * activity-specific lock. The order in which spa_activities_lock and the | |
10503 | * activity specific lock are acquired in the waiting thread is determined by | |
10504 | * the order in which they are acquired in the completing thread; if the | |
10505 | * completing thread calls spa_notify_waiters with the activity-specific lock | |
10506 | * held, then the waiting thread must also acquire the activity-specific lock | |
10507 | * first. | |
10508 | */ | |
10509 | ||
10510 | static int | |
10511 | spa_activity_in_progress(spa_t *spa, zpool_wait_activity_t activity, | |
10512 | boolean_t use_tag, uint64_t tag, boolean_t *in_progress) | |
10513 | { | |
10514 | int error = 0; | |
10515 | ||
10516 | ASSERT(MUTEX_HELD(&spa->spa_activities_lock)); | |
10517 | ||
10518 | switch (activity) { | |
10519 | case ZPOOL_WAIT_CKPT_DISCARD: | |
10520 | *in_progress = | |
10521 | (spa_feature_is_active(spa, SPA_FEATURE_POOL_CHECKPOINT) && | |
10522 | zap_contains(spa_meta_objset(spa), | |
10523 | DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_ZPOOL_CHECKPOINT) == | |
10524 | ENOENT); | |
10525 | break; | |
10526 | case ZPOOL_WAIT_FREE: | |
10527 | *in_progress = ((spa_version(spa) >= SPA_VERSION_DEADLISTS && | |
10528 | !bpobj_is_empty(&spa->spa_dsl_pool->dp_free_bpobj)) || | |
10529 | spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY) || | |
10530 | spa_livelist_delete_check(spa)); | |
10531 | break; | |
10532 | case ZPOOL_WAIT_INITIALIZE: | |
2288d419 BB |
10533 | case ZPOOL_WAIT_TRIM: |
10534 | error = spa_vdev_activity_in_progress(spa, use_tag, tag, | |
10535 | activity, in_progress); | |
e60e158e JG |
10536 | break; |
10537 | case ZPOOL_WAIT_REPLACE: | |
10538 | mutex_exit(&spa->spa_activities_lock); | |
10539 | spa_config_enter(spa, SCL_CONFIG | SCL_STATE, FTAG, RW_READER); | |
10540 | mutex_enter(&spa->spa_activities_lock); | |
10541 | ||
10542 | *in_progress = vdev_replace_in_progress(spa->spa_root_vdev); | |
10543 | spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG); | |
10544 | break; | |
10545 | case ZPOOL_WAIT_REMOVE: | |
10546 | *in_progress = (spa->spa_removing_phys.sr_state == | |
10547 | DSS_SCANNING); | |
10548 | break; | |
10549 | case ZPOOL_WAIT_RESILVER: | |
5caeef02 DB |
10550 | *in_progress = vdev_rebuild_active(spa->spa_root_vdev); |
10551 | if (*in_progress) | |
9a49d3f3 | 10552 | break; |
9a70e97f | 10553 | zfs_fallthrough; |
e60e158e JG |
10554 | case ZPOOL_WAIT_SCRUB: |
10555 | { | |
10556 | boolean_t scanning, paused, is_scrub; | |
10557 | dsl_scan_t *scn = spa->spa_dsl_pool->dp_scan; | |
10558 | ||
10559 | is_scrub = (scn->scn_phys.scn_func == POOL_SCAN_SCRUB); | |
10560 | scanning = (scn->scn_phys.scn_state == DSS_SCANNING); | |
10561 | paused = dsl_scan_is_paused_scrub(scn); | |
10562 | *in_progress = (scanning && !paused && | |
10563 | is_scrub == (activity == ZPOOL_WAIT_SCRUB)); | |
10564 | break; | |
10565 | } | |
5caeef02 DB |
10566 | case ZPOOL_WAIT_RAIDZ_EXPAND: |
10567 | { | |
10568 | vdev_raidz_expand_t *vre = spa->spa_raidz_expand; | |
10569 | *in_progress = (vre != NULL && vre->vre_state == DSS_SCANNING); | |
10570 | break; | |
10571 | } | |
e60e158e JG |
10572 | default: |
10573 | panic("unrecognized value for activity %d", activity); | |
10574 | } | |
10575 | ||
10576 | return (error); | |
10577 | } | |
10578 | ||
10579 | static int | |
10580 | spa_wait_common(const char *pool, zpool_wait_activity_t activity, | |
10581 | boolean_t use_tag, uint64_t tag, boolean_t *waited) | |
10582 | { | |
10583 | /* | |
10584 | * The tag is used to distinguish between instances of an activity. | |
2288d419 BB |
10585 | * 'initialize' and 'trim' are the only activities that we use this for. |
10586 | * The other activities can only have a single instance in progress in a | |
10587 | * pool at one time, making the tag unnecessary. | |
e60e158e JG |
10588 | * |
10589 | * There can be multiple devices being replaced at once, but since they | |
10590 | * all finish once resilvering finishes, we don't bother keeping track | |
10591 | * of them individually, we just wait for them all to finish. | |
10592 | */ | |
2288d419 BB |
10593 | if (use_tag && activity != ZPOOL_WAIT_INITIALIZE && |
10594 | activity != ZPOOL_WAIT_TRIM) | |
e60e158e JG |
10595 | return (EINVAL); |
10596 | ||
10597 | if (activity < 0 || activity >= ZPOOL_WAIT_NUM_ACTIVITIES) | |
10598 | return (EINVAL); | |
10599 | ||
10600 | spa_t *spa; | |
10601 | int error = spa_open(pool, &spa, FTAG); | |
10602 | if (error != 0) | |
10603 | return (error); | |
10604 | ||
10605 | /* | |
10606 | * Increment the spa's waiter count so that we can call spa_close and | |
10607 | * still ensure that the spa_t doesn't get freed before this thread is | |
10608 | * finished with it when the pool is exported. We want to call spa_close | |
10609 | * before we start waiting because otherwise the additional ref would | |
10610 | * prevent the pool from being exported or destroyed throughout the | |
10611 | * potentially long wait. | |
10612 | */ | |
10613 | mutex_enter(&spa->spa_activities_lock); | |
10614 | spa->spa_waiters++; | |
10615 | spa_close(spa, FTAG); | |
10616 | ||
10617 | *waited = B_FALSE; | |
10618 | for (;;) { | |
10619 | boolean_t in_progress; | |
10620 | error = spa_activity_in_progress(spa, activity, use_tag, tag, | |
10621 | &in_progress); | |
10622 | ||
b24771a8 | 10623 | if (error || !in_progress || spa->spa_waiters_cancel) |
e60e158e JG |
10624 | break; |
10625 | ||
10626 | *waited = B_TRUE; | |
10627 | ||
10628 | if (cv_wait_sig(&spa->spa_activities_cv, | |
10629 | &spa->spa_activities_lock) == 0) { | |
10630 | error = EINTR; | |
10631 | break; | |
10632 | } | |
10633 | } | |
10634 | ||
10635 | spa->spa_waiters--; | |
10636 | cv_signal(&spa->spa_waiters_cv); | |
10637 | mutex_exit(&spa->spa_activities_lock); | |
10638 | ||
10639 | return (error); | |
10640 | } | |
10641 | ||
10642 | /* | |
10643 | * Wait for a particular instance of the specified activity to complete, where | |
10644 | * the instance is identified by 'tag' | |
10645 | */ | |
10646 | int | |
10647 | spa_wait_tag(const char *pool, zpool_wait_activity_t activity, uint64_t tag, | |
10648 | boolean_t *waited) | |
10649 | { | |
10650 | return (spa_wait_common(pool, activity, B_TRUE, tag, waited)); | |
10651 | } | |
10652 | ||
10653 | /* | |
10654 | * Wait for all instances of the specified activity complete | |
10655 | */ | |
10656 | int | |
10657 | spa_wait(const char *pool, zpool_wait_activity_t activity, boolean_t *waited) | |
10658 | { | |
10659 | ||
10660 | return (spa_wait_common(pool, activity, B_FALSE, 0, waited)); | |
10661 | } | |
10662 | ||
a1d477c2 | 10663 | sysevent_t * |
12fa0466 DE |
10664 | spa_event_create(spa_t *spa, vdev_t *vd, nvlist_t *hist_nvl, const char *name) |
10665 | { | |
10666 | sysevent_t *ev = NULL; | |
10667 | #ifdef _KERNEL | |
10668 | nvlist_t *resource; | |
10669 | ||
10670 | resource = zfs_event_create(spa, vd, FM_SYSEVENT_CLASS, name, hist_nvl); | |
10671 | if (resource) { | |
10672 | ev = kmem_alloc(sizeof (sysevent_t), KM_SLEEP); | |
10673 | ev->resource = resource; | |
10674 | } | |
14e4e3cb AZ |
10675 | #else |
10676 | (void) spa, (void) vd, (void) hist_nvl, (void) name; | |
12fa0466 DE |
10677 | #endif |
10678 | return (ev); | |
10679 | } | |
10680 | ||
a1d477c2 | 10681 | void |
12fa0466 DE |
10682 | spa_event_post(sysevent_t *ev) |
10683 | { | |
10684 | #ifdef _KERNEL | |
10685 | if (ev) { | |
10686 | zfs_zevent_post(ev->resource, NULL, zfs_zevent_post_cb); | |
10687 | kmem_free(ev, sizeof (*ev)); | |
10688 | } | |
14e4e3cb AZ |
10689 | #else |
10690 | (void) ev; | |
12fa0466 DE |
10691 | #endif |
10692 | } | |
10693 | ||
34dc7c2f | 10694 | /* |
fb390aaf HR |
10695 | * Post a zevent corresponding to the given sysevent. The 'name' must be one |
10696 | * of the event definitions in sys/sysevent/eventdefs.h. The payload will be | |
34dc7c2f BB |
10697 | * filled in from the spa and (optionally) the vdev. This doesn't do anything |
10698 | * in the userland libzpool, as we don't want consumers to misinterpret ztest | |
10699 | * or zdb as real changes. | |
10700 | */ | |
10701 | void | |
12fa0466 | 10702 | spa_event_notify(spa_t *spa, vdev_t *vd, nvlist_t *hist_nvl, const char *name) |
34dc7c2f | 10703 | { |
12fa0466 | 10704 | spa_event_post(spa_event_create(spa, vd, hist_nvl, name)); |
34dc7c2f | 10705 | } |
c28b2279 | 10706 | |
c28b2279 BB |
10707 | /* state manipulation functions */ |
10708 | EXPORT_SYMBOL(spa_open); | |
10709 | EXPORT_SYMBOL(spa_open_rewind); | |
10710 | EXPORT_SYMBOL(spa_get_stats); | |
10711 | EXPORT_SYMBOL(spa_create); | |
c28b2279 BB |
10712 | EXPORT_SYMBOL(spa_import); |
10713 | EXPORT_SYMBOL(spa_tryimport); | |
10714 | EXPORT_SYMBOL(spa_destroy); | |
10715 | EXPORT_SYMBOL(spa_export); | |
10716 | EXPORT_SYMBOL(spa_reset); | |
10717 | EXPORT_SYMBOL(spa_async_request); | |
10718 | EXPORT_SYMBOL(spa_async_suspend); | |
10719 | EXPORT_SYMBOL(spa_async_resume); | |
10720 | EXPORT_SYMBOL(spa_inject_addref); | |
10721 | EXPORT_SYMBOL(spa_inject_delref); | |
10722 | EXPORT_SYMBOL(spa_scan_stat_init); | |
10723 | EXPORT_SYMBOL(spa_scan_get_stats); | |
10724 | ||
e1cfd73f | 10725 | /* device manipulation */ |
c28b2279 BB |
10726 | EXPORT_SYMBOL(spa_vdev_add); |
10727 | EXPORT_SYMBOL(spa_vdev_attach); | |
10728 | EXPORT_SYMBOL(spa_vdev_detach); | |
c28b2279 BB |
10729 | EXPORT_SYMBOL(spa_vdev_setpath); |
10730 | EXPORT_SYMBOL(spa_vdev_setfru); | |
10731 | EXPORT_SYMBOL(spa_vdev_split_mirror); | |
10732 | ||
10733 | /* spare statech is global across all pools) */ | |
10734 | EXPORT_SYMBOL(spa_spare_add); | |
10735 | EXPORT_SYMBOL(spa_spare_remove); | |
10736 | EXPORT_SYMBOL(spa_spare_exists); | |
10737 | EXPORT_SYMBOL(spa_spare_activate); | |
10738 | ||
10739 | /* L2ARC statech is global across all pools) */ | |
10740 | EXPORT_SYMBOL(spa_l2cache_add); | |
10741 | EXPORT_SYMBOL(spa_l2cache_remove); | |
10742 | EXPORT_SYMBOL(spa_l2cache_exists); | |
10743 | EXPORT_SYMBOL(spa_l2cache_activate); | |
10744 | EXPORT_SYMBOL(spa_l2cache_drop); | |
10745 | ||
10746 | /* scanning */ | |
10747 | EXPORT_SYMBOL(spa_scan); | |
10748 | EXPORT_SYMBOL(spa_scan_stop); | |
10749 | ||
10750 | /* spa syncing */ | |
10751 | EXPORT_SYMBOL(spa_sync); /* only for DMU use */ | |
10752 | EXPORT_SYMBOL(spa_sync_allpools); | |
10753 | ||
10754 | /* properties */ | |
10755 | EXPORT_SYMBOL(spa_prop_set); | |
10756 | EXPORT_SYMBOL(spa_prop_get); | |
10757 | EXPORT_SYMBOL(spa_prop_clear_bootfs); | |
10758 | ||
10759 | /* asynchronous event notification */ | |
10760 | EXPORT_SYMBOL(spa_event_notify); | |
dea377c0 | 10761 | |
342357cd AM |
10762 | ZFS_MODULE_PARAM(zfs_metaslab, metaslab_, preload_pct, UINT, ZMOD_RW, |
10763 | "Percentage of CPUs to run a metaslab preload taskq"); | |
10764 | ||
c8242a96 | 10765 | /* BEGIN CSTYLED */ |
fdc2d303 | 10766 | ZFS_MODULE_PARAM(zfs_spa, spa_, load_verify_shift, UINT, ZMOD_RW, |
458f8231 | 10767 | "log2 fraction of arc that can be used by inflight I/Os when " |
03fdcb9a | 10768 | "verifying pool during import"); |
7ada752a | 10769 | /* END CSTYLED */ |
dea377c0 | 10770 | |
03fdcb9a | 10771 | ZFS_MODULE_PARAM(zfs_spa, spa_, load_verify_metadata, INT, ZMOD_RW, |
dea377c0 MA |
10772 | "Set to traverse metadata on pool import"); |
10773 | ||
03fdcb9a | 10774 | ZFS_MODULE_PARAM(zfs_spa, spa_, load_verify_data, INT, ZMOD_RW, |
dea377c0 | 10775 | "Set to traverse data on pool import"); |
dcb6bed1 | 10776 | |
03fdcb9a | 10777 | ZFS_MODULE_PARAM(zfs_spa, spa_, load_print_vdev_tree, INT, ZMOD_RW, |
6cb8e530 PZ |
10778 | "Print vdev tree to zfs_dbgmsg during pool import"); |
10779 | ||
03fdcb9a | 10780 | ZFS_MODULE_PARAM(zfs_zio, zio_, taskq_batch_pct, UINT, ZMOD_RD, |
dcb6bed1 D |
10781 | "Percentage of CPUs to run an IO worker thread"); |
10782 | ||
7457b024 AM |
10783 | ZFS_MODULE_PARAM(zfs_zio, zio_, taskq_batch_tpq, UINT, ZMOD_RD, |
10784 | "Number of threads per IO worker taskqueue"); | |
10785 | ||
7ada752a | 10786 | /* BEGIN CSTYLED */ |
ab8d9c17 | 10787 | ZFS_MODULE_PARAM(zfs, zfs_, max_missing_tvds, U64, ZMOD_RW, |
03fdcb9a MM |
10788 | "Allow importing pool with up to this number of missing top-level " |
10789 | "vdevs (in read-only mode)"); | |
7ada752a | 10790 | /* END CSTYLED */ |
6cb8e530 | 10791 | |
7ada752a AZ |
10792 | ZFS_MODULE_PARAM(zfs_livelist_condense, zfs_livelist_condense_, zthr_pause, INT, |
10793 | ZMOD_RW, "Set the livelist condense zthr to pause"); | |
03fdcb9a | 10794 | |
7ada752a AZ |
10795 | ZFS_MODULE_PARAM(zfs_livelist_condense, zfs_livelist_condense_, sync_pause, INT, |
10796 | ZMOD_RW, "Set the livelist condense synctask to pause"); | |
37f03da8 | 10797 | |
7ada752a AZ |
10798 | /* BEGIN CSTYLED */ |
10799 | ZFS_MODULE_PARAM(zfs_livelist_condense, zfs_livelist_condense_, sync_cancel, | |
10800 | INT, ZMOD_RW, | |
37f03da8 | 10801 | "Whether livelist condensing was canceled in the synctask"); |
03fdcb9a | 10802 | |
7ada752a AZ |
10803 | ZFS_MODULE_PARAM(zfs_livelist_condense, zfs_livelist_condense_, zthr_cancel, |
10804 | INT, ZMOD_RW, | |
37f03da8 SH |
10805 | "Whether livelist condensing was canceled in the zthr function"); |
10806 | ||
7ada752a AZ |
10807 | ZFS_MODULE_PARAM(zfs_livelist_condense, zfs_livelist_condense_, new_alloc, INT, |
10808 | ZMOD_RW, | |
03fdcb9a MM |
10809 | "Whether extra ALLOC blkptrs were added to a livelist entry while it " |
10810 | "was being condensed"); | |
6930ecbb RN |
10811 | |
10812 | #ifdef _KERNEL | |
10813 | ZFS_MODULE_VIRTUAL_PARAM_CALL(zfs_zio, zio_, taskq_read, | |
10814 | spa_taskq_read_param_set, spa_taskq_read_param_get, ZMOD_RD, | |
10815 | "Configure IO queues for read IO"); | |
10816 | ZFS_MODULE_VIRTUAL_PARAM_CALL(zfs_zio, zio_, taskq_write, | |
10817 | spa_taskq_write_param_set, spa_taskq_write_param_get, ZMOD_RD, | |
10818 | "Configure IO queues for write IO"); | |
10819 | #endif | |
37f03da8 | 10820 | /* END CSTYLED */ |
3bd4df38 EN |
10821 | |
10822 | ZFS_MODULE_PARAM(zfs_zio, zio_, taskq_wr_iss_ncpus, UINT, ZMOD_RW, | |
10823 | "Number of CPUs to run write issue taskqs"); |