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Commit | Line | Data |
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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. |
03e02e5b | 24 | * Copyright (c) 2011, 2021 by Delphix. All rights reserved. |
153b2285 | 25 | * Copyright 2017 Nexenta Systems, Inc. |
e550644f BB |
26 | * Copyright (c) 2014 Integros [integros.com] |
27 | * Copyright 2016 Toomas Soome <tsoome@me.com> | |
12fa0466 | 28 | * Copyright 2017 Joyent, Inc. |
cc99f275 | 29 | * Copyright (c) 2017, Intel Corporation. |
3c819a2c | 30 | * Copyright (c) 2019, Datto Inc. All rights reserved. |
2a673e76 | 31 | * Copyright (c) 2021, Klara Inc. |
9d618615 | 32 | * Copyright (c) 2021, 2023 Hewlett Packard Enterprise Development LP. |
34dc7c2f BB |
33 | */ |
34 | ||
34dc7c2f BB |
35 | #include <sys/zfs_context.h> |
36 | #include <sys/fm/fs/zfs.h> | |
37 | #include <sys/spa.h> | |
38 | #include <sys/spa_impl.h> | |
a1d477c2 | 39 | #include <sys/bpobj.h> |
34dc7c2f BB |
40 | #include <sys/dmu.h> |
41 | #include <sys/dmu_tx.h> | |
a1d477c2 | 42 | #include <sys/dsl_dir.h> |
34dc7c2f | 43 | #include <sys/vdev_impl.h> |
9a49d3f3 | 44 | #include <sys/vdev_rebuild.h> |
b2255edc | 45 | #include <sys/vdev_draid.h> |
34dc7c2f BB |
46 | #include <sys/uberblock_impl.h> |
47 | #include <sys/metaslab.h> | |
48 | #include <sys/metaslab_impl.h> | |
49 | #include <sys/space_map.h> | |
93cf2076 | 50 | #include <sys/space_reftree.h> |
34dc7c2f BB |
51 | #include <sys/zio.h> |
52 | #include <sys/zap.h> | |
53 | #include <sys/fs/zfs.h> | |
b128c09f | 54 | #include <sys/arc.h> |
9babb374 | 55 | #include <sys/zil.h> |
428870ff | 56 | #include <sys/dsl_scan.h> |
b2255edc | 57 | #include <sys/vdev_raidz.h> |
a6255b7f | 58 | #include <sys/abd.h> |
619f0976 | 59 | #include <sys/vdev_initialize.h> |
1b939560 | 60 | #include <sys/vdev_trim.h> |
5caeef02 | 61 | #include <sys/vdev_raidz.h> |
6c285672 | 62 | #include <sys/zvol.h> |
6078881a | 63 | #include <sys/zfs_ratelimit.h> |
2a673e76 | 64 | #include "zfs_prop.h" |
34dc7c2f | 65 | |
aa755b35 MA |
66 | /* |
67 | * One metaslab from each (normal-class) vdev is used by the ZIL. These are | |
68 | * called "embedded slog metaslabs", are referenced by vdev_log_mg, and are | |
69 | * part of the spa_embedded_log_class. The metaslab with the most free space | |
70 | * in each vdev is selected for this purpose when the pool is opened (or a | |
71 | * vdev is added). See vdev_metaslab_init(). | |
72 | * | |
73 | * Log blocks can be allocated from the following locations. Each one is tried | |
74 | * in order until the allocation succeeds: | |
75 | * 1. dedicated log vdevs, aka "slog" (spa_log_class) | |
76 | * 2. embedded slog metaslabs (spa_embedded_log_class) | |
77 | * 3. other metaslabs in normal vdevs (spa_normal_class) | |
78 | * | |
79 | * zfs_embedded_slog_min_ms disables the embedded slog if there are fewer | |
80 | * than this number of metaslabs in the vdev. This ensures that we don't set | |
81 | * aside an unreasonable amount of space for the ZIL. If set to less than | |
82 | * 1 << (spa_slop_shift + 1), on small pools the usable space may be reduced | |
83 | * (by more than 1<<spa_slop_shift) due to the embedded slog metaslab. | |
84 | */ | |
fdc2d303 | 85 | static uint_t zfs_embedded_slog_min_ms = 64; |
aa755b35 | 86 | |
c853f382 | 87 | /* default target for number of metaslabs per top-level vdev */ |
fdc2d303 | 88 | static uint_t zfs_vdev_default_ms_count = 200; |
d2734cce | 89 | |
e4e94ca3 | 90 | /* minimum number of metaslabs per top-level vdev */ |
fdc2d303 | 91 | static uint_t zfs_vdev_min_ms_count = 16; |
d2734cce | 92 | |
e4e94ca3 | 93 | /* practical upper limit of total metaslabs per top-level vdev */ |
fdc2d303 | 94 | static uint_t zfs_vdev_ms_count_limit = 1ULL << 17; |
e4e94ca3 DB |
95 | |
96 | /* lower limit for metaslab size (512M) */ | |
fdc2d303 | 97 | static uint_t zfs_vdev_default_ms_shift = 29; |
d2734cce | 98 | |
c853f382 | 99 | /* upper limit for metaslab size (16G) */ |
ff73574c | 100 | static uint_t zfs_vdev_max_ms_shift = 34; |
e4e94ca3 | 101 | |
d2734cce SD |
102 | int vdev_validate_skip = B_FALSE; |
103 | ||
b8bcca18 | 104 | /* |
d2734cce SD |
105 | * Since the DTL space map of a vdev is not expected to have a lot of |
106 | * entries, we default its block size to 4K. | |
b8bcca18 | 107 | */ |
93e28d66 | 108 | int zfs_vdev_dtl_sm_blksz = (1 << 12); |
b8bcca18 | 109 | |
80d52c39 | 110 | /* |
ad796b8a | 111 | * Rate limit slow IO (delay) events to this many per second. |
80d52c39 | 112 | */ |
18168da7 | 113 | static unsigned int zfs_slow_io_events_per_second = 20; |
80d52c39 TH |
114 | |
115 | /* | |
116 | * Rate limit checksum events after this many checksum errors per second. | |
117 | */ | |
18168da7 | 118 | static unsigned int zfs_checksum_events_per_second = 20; |
80d52c39 | 119 | |
02638a30 TC |
120 | /* |
121 | * Ignore errors during scrub/resilver. Allows to work around resilver | |
122 | * upon import when there are pool errors. | |
123 | */ | |
18168da7 | 124 | static int zfs_scan_ignore_errors = 0; |
02638a30 | 125 | |
d2734cce SD |
126 | /* |
127 | * vdev-wide space maps that have lots of entries written to them at | |
128 | * the end of each transaction can benefit from a higher I/O bandwidth | |
129 | * (e.g. vdev_obsolete_sm), thus we default their block size to 128K. | |
130 | */ | |
93e28d66 | 131 | int zfs_vdev_standard_sm_blksz = (1 << 17); |
6cb8e530 | 132 | |
53b1f5ea PS |
133 | /* |
134 | * Tunable parameter for debugging or performance analysis. Setting this | |
135 | * will cause pool corruption on power loss if a volatile out-of-order | |
136 | * write cache is enabled. | |
137 | */ | |
138 | int zfs_nocacheflush = 0; | |
139 | ||
37f6845c AM |
140 | /* |
141 | * Maximum and minimum ashift values that can be automatically set based on | |
142 | * vdev's physical ashift (disk's physical sector size). While ASHIFT_MAX | |
143 | * is higher than the maximum value, it is intentionally limited here to not | |
144 | * excessively impact pool space efficiency. Higher ashift values may still | |
145 | * be forced by vdev logical ashift or by user via ashift property, but won't | |
146 | * be set automatically as a performance optimization. | |
147 | */ | |
ab8d9c17 RY |
148 | uint_t zfs_vdev_max_auto_ashift = 14; |
149 | uint_t zfs_vdev_min_auto_ashift = ASHIFT_MIN; | |
6fe3498c | 150 | |
4a0ee12a PZ |
151 | void |
152 | vdev_dbgmsg(vdev_t *vd, const char *fmt, ...) | |
153 | { | |
154 | va_list adx; | |
155 | char buf[256]; | |
156 | ||
157 | va_start(adx, fmt); | |
158 | (void) vsnprintf(buf, sizeof (buf), fmt, adx); | |
159 | va_end(adx); | |
160 | ||
161 | if (vd->vdev_path != NULL) { | |
162 | zfs_dbgmsg("%s vdev '%s': %s", vd->vdev_ops->vdev_op_type, | |
163 | vd->vdev_path, buf); | |
164 | } else { | |
165 | zfs_dbgmsg("%s-%llu vdev (guid %llu): %s", | |
166 | vd->vdev_ops->vdev_op_type, | |
167 | (u_longlong_t)vd->vdev_id, | |
168 | (u_longlong_t)vd->vdev_guid, buf); | |
169 | } | |
170 | } | |
171 | ||
6cb8e530 PZ |
172 | void |
173 | vdev_dbgmsg_print_tree(vdev_t *vd, int indent) | |
174 | { | |
175 | char state[20]; | |
176 | ||
177 | if (vd->vdev_ishole || vd->vdev_ops == &vdev_missing_ops) { | |
8e739b2c RE |
178 | zfs_dbgmsg("%*svdev %llu: %s", indent, "", |
179 | (u_longlong_t)vd->vdev_id, | |
6cb8e530 PZ |
180 | vd->vdev_ops->vdev_op_type); |
181 | return; | |
182 | } | |
183 | ||
184 | switch (vd->vdev_state) { | |
185 | case VDEV_STATE_UNKNOWN: | |
186 | (void) snprintf(state, sizeof (state), "unknown"); | |
187 | break; | |
188 | case VDEV_STATE_CLOSED: | |
189 | (void) snprintf(state, sizeof (state), "closed"); | |
190 | break; | |
191 | case VDEV_STATE_OFFLINE: | |
192 | (void) snprintf(state, sizeof (state), "offline"); | |
193 | break; | |
194 | case VDEV_STATE_REMOVED: | |
195 | (void) snprintf(state, sizeof (state), "removed"); | |
196 | break; | |
197 | case VDEV_STATE_CANT_OPEN: | |
198 | (void) snprintf(state, sizeof (state), "can't open"); | |
199 | break; | |
200 | case VDEV_STATE_FAULTED: | |
201 | (void) snprintf(state, sizeof (state), "faulted"); | |
202 | break; | |
203 | case VDEV_STATE_DEGRADED: | |
204 | (void) snprintf(state, sizeof (state), "degraded"); | |
205 | break; | |
206 | case VDEV_STATE_HEALTHY: | |
207 | (void) snprintf(state, sizeof (state), "healthy"); | |
208 | break; | |
209 | default: | |
210 | (void) snprintf(state, sizeof (state), "<state %u>", | |
211 | (uint_t)vd->vdev_state); | |
212 | } | |
213 | ||
214 | zfs_dbgmsg("%*svdev %u: %s%s, guid: %llu, path: %s, %s", indent, | |
e902ddb0 | 215 | "", (int)vd->vdev_id, vd->vdev_ops->vdev_op_type, |
6cb8e530 PZ |
216 | vd->vdev_islog ? " (log)" : "", |
217 | (u_longlong_t)vd->vdev_guid, | |
218 | vd->vdev_path ? vd->vdev_path : "N/A", state); | |
219 | ||
220 | for (uint64_t i = 0; i < vd->vdev_children; i++) | |
221 | vdev_dbgmsg_print_tree(vd->vdev_child[i], indent + 2); | |
222 | } | |
223 | ||
34dc7c2f BB |
224 | /* |
225 | * Virtual device management. | |
226 | */ | |
227 | ||
a2d5643f | 228 | static vdev_ops_t *const vdev_ops_table[] = { |
34dc7c2f BB |
229 | &vdev_root_ops, |
230 | &vdev_raidz_ops, | |
b2255edc BB |
231 | &vdev_draid_ops, |
232 | &vdev_draid_spare_ops, | |
34dc7c2f BB |
233 | &vdev_mirror_ops, |
234 | &vdev_replacing_ops, | |
235 | &vdev_spare_ops, | |
236 | &vdev_disk_ops, | |
237 | &vdev_file_ops, | |
238 | &vdev_missing_ops, | |
428870ff | 239 | &vdev_hole_ops, |
a1d477c2 | 240 | &vdev_indirect_ops, |
34dc7c2f BB |
241 | NULL |
242 | }; | |
243 | ||
34dc7c2f BB |
244 | /* |
245 | * Given a vdev type, return the appropriate ops vector. | |
246 | */ | |
247 | static vdev_ops_t * | |
248 | vdev_getops(const char *type) | |
249 | { | |
a2d5643f | 250 | vdev_ops_t *ops, *const *opspp; |
34dc7c2f BB |
251 | |
252 | for (opspp = vdev_ops_table; (ops = *opspp) != NULL; opspp++) | |
253 | if (strcmp(ops->vdev_op_type, type) == 0) | |
254 | break; | |
255 | ||
256 | return (ops); | |
257 | } | |
258 | ||
aa755b35 MA |
259 | /* |
260 | * Given a vdev and a metaslab class, find which metaslab group we're | |
261 | * interested in. All vdevs may belong to two different metaslab classes. | |
262 | * Dedicated slog devices use only the primary metaslab group, rather than a | |
263 | * separate log group. For embedded slogs, the vdev_log_mg will be non-NULL. | |
264 | */ | |
265 | metaslab_group_t * | |
266 | vdev_get_mg(vdev_t *vd, metaslab_class_t *mc) | |
267 | { | |
268 | if (mc == spa_embedded_log_class(vd->vdev_spa) && | |
269 | vd->vdev_log_mg != NULL) | |
270 | return (vd->vdev_log_mg); | |
271 | else | |
272 | return (vd->vdev_mg); | |
273 | } | |
274 | ||
619f0976 | 275 | void |
b2255edc BB |
276 | vdev_default_xlate(vdev_t *vd, const range_seg64_t *logical_rs, |
277 | range_seg64_t *physical_rs, range_seg64_t *remain_rs) | |
619f0976 | 278 | { |
14e4e3cb AZ |
279 | (void) vd, (void) remain_rs; |
280 | ||
b2255edc BB |
281 | physical_rs->rs_start = logical_rs->rs_start; |
282 | physical_rs->rs_end = logical_rs->rs_end; | |
619f0976 GW |
283 | } |
284 | ||
cc99f275 | 285 | /* |
e1cfd73f | 286 | * Derive the enumerated allocation bias from string input. |
76d04993 | 287 | * String origin is either the per-vdev zap or zpool(8). |
cc99f275 DB |
288 | */ |
289 | static vdev_alloc_bias_t | |
290 | vdev_derive_alloc_bias(const char *bias) | |
291 | { | |
292 | vdev_alloc_bias_t alloc_bias = VDEV_BIAS_NONE; | |
293 | ||
294 | if (strcmp(bias, VDEV_ALLOC_BIAS_LOG) == 0) | |
295 | alloc_bias = VDEV_BIAS_LOG; | |
296 | else if (strcmp(bias, VDEV_ALLOC_BIAS_SPECIAL) == 0) | |
297 | alloc_bias = VDEV_BIAS_SPECIAL; | |
298 | else if (strcmp(bias, VDEV_ALLOC_BIAS_DEDUP) == 0) | |
299 | alloc_bias = VDEV_BIAS_DEDUP; | |
300 | ||
301 | return (alloc_bias); | |
302 | } | |
303 | ||
34dc7c2f BB |
304 | /* |
305 | * Default asize function: return the MAX of psize with the asize of | |
306 | * all children. This is what's used by anything other than RAID-Z. | |
307 | */ | |
308 | uint64_t | |
5caeef02 | 309 | vdev_default_asize(vdev_t *vd, uint64_t psize, uint64_t txg) |
34dc7c2f BB |
310 | { |
311 | uint64_t asize = P2ROUNDUP(psize, 1ULL << vd->vdev_top->vdev_ashift); | |
312 | uint64_t csize; | |
34dc7c2f | 313 | |
1c27024e | 314 | for (int c = 0; c < vd->vdev_children; c++) { |
5caeef02 | 315 | csize = vdev_psize_to_asize_txg(vd->vdev_child[c], psize, txg); |
34dc7c2f BB |
316 | asize = MAX(asize, csize); |
317 | } | |
318 | ||
319 | return (asize); | |
320 | } | |
321 | ||
b2255edc BB |
322 | uint64_t |
323 | vdev_default_min_asize(vdev_t *vd) | |
324 | { | |
325 | return (vd->vdev_min_asize); | |
326 | } | |
327 | ||
34dc7c2f | 328 | /* |
9babb374 BB |
329 | * Get the minimum allocatable size. We define the allocatable size as |
330 | * the vdev's asize rounded to the nearest metaslab. This allows us to | |
331 | * replace or attach devices which don't have the same physical size but | |
332 | * can still satisfy the same number of allocations. | |
34dc7c2f BB |
333 | */ |
334 | uint64_t | |
9babb374 | 335 | vdev_get_min_asize(vdev_t *vd) |
34dc7c2f | 336 | { |
9babb374 | 337 | vdev_t *pvd = vd->vdev_parent; |
34dc7c2f | 338 | |
9babb374 | 339 | /* |
1bd201e7 | 340 | * If our parent is NULL (inactive spare or cache) or is the root, |
9babb374 BB |
341 | * just return our own asize. |
342 | */ | |
343 | if (pvd == NULL) | |
344 | return (vd->vdev_asize); | |
34dc7c2f BB |
345 | |
346 | /* | |
9babb374 BB |
347 | * The top-level vdev just returns the allocatable size rounded |
348 | * to the nearest metaslab. | |
34dc7c2f | 349 | */ |
9babb374 BB |
350 | if (vd == vd->vdev_top) |
351 | return (P2ALIGN(vd->vdev_asize, 1ULL << vd->vdev_ms_shift)); | |
34dc7c2f | 352 | |
b2255edc | 353 | return (pvd->vdev_ops->vdev_op_min_asize(pvd)); |
9babb374 BB |
354 | } |
355 | ||
356 | void | |
357 | vdev_set_min_asize(vdev_t *vd) | |
358 | { | |
359 | vd->vdev_min_asize = vdev_get_min_asize(vd); | |
34dc7c2f | 360 | |
1c27024e | 361 | for (int c = 0; c < vd->vdev_children; c++) |
9babb374 | 362 | vdev_set_min_asize(vd->vdev_child[c]); |
34dc7c2f BB |
363 | } |
364 | ||
b2255edc BB |
365 | /* |
366 | * Get the minimal allocation size for the top-level vdev. | |
367 | */ | |
368 | uint64_t | |
369 | vdev_get_min_alloc(vdev_t *vd) | |
370 | { | |
371 | uint64_t min_alloc = 1ULL << vd->vdev_ashift; | |
372 | ||
373 | if (vd->vdev_ops->vdev_op_min_alloc != NULL) | |
374 | min_alloc = vd->vdev_ops->vdev_op_min_alloc(vd); | |
375 | ||
376 | return (min_alloc); | |
377 | } | |
378 | ||
379 | /* | |
380 | * Get the parity level for a top-level vdev. | |
381 | */ | |
382 | uint64_t | |
383 | vdev_get_nparity(vdev_t *vd) | |
384 | { | |
385 | uint64_t nparity = 0; | |
386 | ||
387 | if (vd->vdev_ops->vdev_op_nparity != NULL) | |
388 | nparity = vd->vdev_ops->vdev_op_nparity(vd); | |
389 | ||
390 | return (nparity); | |
391 | } | |
392 | ||
69f024a5 RW |
393 | static int |
394 | vdev_prop_get_int(vdev_t *vd, vdev_prop_t prop, uint64_t *value) | |
395 | { | |
396 | spa_t *spa = vd->vdev_spa; | |
397 | objset_t *mos = spa->spa_meta_objset; | |
398 | uint64_t objid; | |
399 | int err; | |
400 | ||
3e4ed421 RW |
401 | if (vd->vdev_root_zap != 0) { |
402 | objid = vd->vdev_root_zap; | |
403 | } else if (vd->vdev_top_zap != 0) { | |
69f024a5 RW |
404 | objid = vd->vdev_top_zap; |
405 | } else if (vd->vdev_leaf_zap != 0) { | |
406 | objid = vd->vdev_leaf_zap; | |
407 | } else { | |
408 | return (EINVAL); | |
409 | } | |
410 | ||
411 | err = zap_lookup(mos, objid, vdev_prop_to_name(prop), | |
412 | sizeof (uint64_t), 1, value); | |
413 | ||
414 | if (err == ENOENT) | |
415 | *value = vdev_prop_default_numeric(prop); | |
416 | ||
417 | return (err); | |
418 | } | |
419 | ||
b2255edc BB |
420 | /* |
421 | * Get the number of data disks for a top-level vdev. | |
422 | */ | |
423 | uint64_t | |
424 | vdev_get_ndisks(vdev_t *vd) | |
425 | { | |
426 | uint64_t ndisks = 1; | |
427 | ||
428 | if (vd->vdev_ops->vdev_op_ndisks != NULL) | |
429 | ndisks = vd->vdev_ops->vdev_op_ndisks(vd); | |
430 | ||
431 | return (ndisks); | |
432 | } | |
433 | ||
34dc7c2f BB |
434 | vdev_t * |
435 | vdev_lookup_top(spa_t *spa, uint64_t vdev) | |
436 | { | |
437 | vdev_t *rvd = spa->spa_root_vdev; | |
438 | ||
b128c09f | 439 | ASSERT(spa_config_held(spa, SCL_ALL, RW_READER) != 0); |
34dc7c2f | 440 | |
b128c09f BB |
441 | if (vdev < rvd->vdev_children) { |
442 | ASSERT(rvd->vdev_child[vdev] != NULL); | |
34dc7c2f | 443 | return (rvd->vdev_child[vdev]); |
b128c09f | 444 | } |
34dc7c2f BB |
445 | |
446 | return (NULL); | |
447 | } | |
448 | ||
449 | vdev_t * | |
450 | vdev_lookup_by_guid(vdev_t *vd, uint64_t guid) | |
451 | { | |
34dc7c2f BB |
452 | vdev_t *mvd; |
453 | ||
454 | if (vd->vdev_guid == guid) | |
455 | return (vd); | |
456 | ||
1c27024e | 457 | for (int c = 0; c < vd->vdev_children; c++) |
34dc7c2f BB |
458 | if ((mvd = vdev_lookup_by_guid(vd->vdev_child[c], guid)) != |
459 | NULL) | |
460 | return (mvd); | |
461 | ||
462 | return (NULL); | |
463 | } | |
464 | ||
9c43027b AJ |
465 | static int |
466 | vdev_count_leaves_impl(vdev_t *vd) | |
467 | { | |
468 | int n = 0; | |
9c43027b AJ |
469 | |
470 | if (vd->vdev_ops->vdev_op_leaf) | |
471 | return (1); | |
472 | ||
1c27024e | 473 | for (int c = 0; c < vd->vdev_children; c++) |
9c43027b AJ |
474 | n += vdev_count_leaves_impl(vd->vdev_child[c]); |
475 | ||
476 | return (n); | |
477 | } | |
478 | ||
479 | int | |
480 | vdev_count_leaves(spa_t *spa) | |
481 | { | |
743253df OF |
482 | int rc; |
483 | ||
484 | spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); | |
485 | rc = vdev_count_leaves_impl(spa->spa_root_vdev); | |
486 | spa_config_exit(spa, SCL_VDEV, FTAG); | |
487 | ||
488 | return (rc); | |
9c43027b AJ |
489 | } |
490 | ||
34dc7c2f BB |
491 | void |
492 | vdev_add_child(vdev_t *pvd, vdev_t *cvd) | |
493 | { | |
494 | size_t oldsize, newsize; | |
495 | uint64_t id = cvd->vdev_id; | |
496 | vdev_t **newchild; | |
497 | ||
44de2f02 | 498 | ASSERT(spa_config_held(cvd->vdev_spa, SCL_ALL, RW_WRITER) == SCL_ALL); |
34dc7c2f BB |
499 | ASSERT(cvd->vdev_parent == NULL); |
500 | ||
501 | cvd->vdev_parent = pvd; | |
502 | ||
503 | if (pvd == NULL) | |
504 | return; | |
505 | ||
506 | ASSERT(id >= pvd->vdev_children || pvd->vdev_child[id] == NULL); | |
507 | ||
508 | oldsize = pvd->vdev_children * sizeof (vdev_t *); | |
509 | pvd->vdev_children = MAX(pvd->vdev_children, id + 1); | |
510 | newsize = pvd->vdev_children * sizeof (vdev_t *); | |
511 | ||
79c76d5b | 512 | newchild = kmem_alloc(newsize, KM_SLEEP); |
34dc7c2f | 513 | if (pvd->vdev_child != NULL) { |
861166b0 | 514 | memcpy(newchild, pvd->vdev_child, oldsize); |
34dc7c2f BB |
515 | kmem_free(pvd->vdev_child, oldsize); |
516 | } | |
517 | ||
518 | pvd->vdev_child = newchild; | |
519 | pvd->vdev_child[id] = cvd; | |
520 | ||
521 | cvd->vdev_top = (pvd->vdev_top ? pvd->vdev_top: cvd); | |
522 | ASSERT(cvd->vdev_top->vdev_parent->vdev_parent == NULL); | |
523 | ||
524 | /* | |
525 | * Walk up all ancestors to update guid sum. | |
526 | */ | |
527 | for (; pvd != NULL; pvd = pvd->vdev_parent) | |
528 | pvd->vdev_guid_sum += cvd->vdev_guid_sum; | |
3d31aad8 OF |
529 | |
530 | if (cvd->vdev_ops->vdev_op_leaf) { | |
531 | list_insert_head(&cvd->vdev_spa->spa_leaf_list, cvd); | |
532 | cvd->vdev_spa->spa_leaf_list_gen++; | |
533 | } | |
34dc7c2f BB |
534 | } |
535 | ||
536 | void | |
537 | vdev_remove_child(vdev_t *pvd, vdev_t *cvd) | |
538 | { | |
539 | int c; | |
540 | uint_t id = cvd->vdev_id; | |
541 | ||
542 | ASSERT(cvd->vdev_parent == pvd); | |
543 | ||
544 | if (pvd == NULL) | |
545 | return; | |
546 | ||
547 | ASSERT(id < pvd->vdev_children); | |
548 | ASSERT(pvd->vdev_child[id] == cvd); | |
549 | ||
550 | pvd->vdev_child[id] = NULL; | |
551 | cvd->vdev_parent = NULL; | |
552 | ||
553 | for (c = 0; c < pvd->vdev_children; c++) | |
554 | if (pvd->vdev_child[c]) | |
555 | break; | |
556 | ||
557 | if (c == pvd->vdev_children) { | |
558 | kmem_free(pvd->vdev_child, c * sizeof (vdev_t *)); | |
559 | pvd->vdev_child = NULL; | |
560 | pvd->vdev_children = 0; | |
561 | } | |
562 | ||
3d31aad8 OF |
563 | if (cvd->vdev_ops->vdev_op_leaf) { |
564 | spa_t *spa = cvd->vdev_spa; | |
565 | list_remove(&spa->spa_leaf_list, cvd); | |
566 | spa->spa_leaf_list_gen++; | |
567 | } | |
568 | ||
34dc7c2f BB |
569 | /* |
570 | * Walk up all ancestors to update guid sum. | |
571 | */ | |
572 | for (; pvd != NULL; pvd = pvd->vdev_parent) | |
573 | pvd->vdev_guid_sum -= cvd->vdev_guid_sum; | |
34dc7c2f BB |
574 | } |
575 | ||
576 | /* | |
577 | * Remove any holes in the child array. | |
578 | */ | |
579 | void | |
580 | vdev_compact_children(vdev_t *pvd) | |
581 | { | |
582 | vdev_t **newchild, *cvd; | |
583 | int oldc = pvd->vdev_children; | |
9babb374 | 584 | int newc; |
34dc7c2f | 585 | |
b128c09f | 586 | ASSERT(spa_config_held(pvd->vdev_spa, SCL_ALL, RW_WRITER) == SCL_ALL); |
34dc7c2f | 587 | |
a1d477c2 MA |
588 | if (oldc == 0) |
589 | return; | |
590 | ||
1c27024e | 591 | for (int c = newc = 0; c < oldc; c++) |
34dc7c2f BB |
592 | if (pvd->vdev_child[c]) |
593 | newc++; | |
594 | ||
a1d477c2 MA |
595 | if (newc > 0) { |
596 | newchild = kmem_zalloc(newc * sizeof (vdev_t *), KM_SLEEP); | |
34dc7c2f | 597 | |
a1d477c2 MA |
598 | for (int c = newc = 0; c < oldc; c++) { |
599 | if ((cvd = pvd->vdev_child[c]) != NULL) { | |
600 | newchild[newc] = cvd; | |
601 | cvd->vdev_id = newc++; | |
602 | } | |
34dc7c2f | 603 | } |
a1d477c2 MA |
604 | } else { |
605 | newchild = NULL; | |
34dc7c2f BB |
606 | } |
607 | ||
608 | kmem_free(pvd->vdev_child, oldc * sizeof (vdev_t *)); | |
609 | pvd->vdev_child = newchild; | |
610 | pvd->vdev_children = newc; | |
611 | } | |
612 | ||
613 | /* | |
614 | * Allocate and minimally initialize a vdev_t. | |
615 | */ | |
428870ff | 616 | vdev_t * |
34dc7c2f BB |
617 | vdev_alloc_common(spa_t *spa, uint_t id, uint64_t guid, vdev_ops_t *ops) |
618 | { | |
619 | vdev_t *vd; | |
a1d477c2 | 620 | vdev_indirect_config_t *vic; |
34dc7c2f | 621 | |
79c76d5b | 622 | vd = kmem_zalloc(sizeof (vdev_t), KM_SLEEP); |
a1d477c2 | 623 | vic = &vd->vdev_indirect_config; |
34dc7c2f BB |
624 | |
625 | if (spa->spa_root_vdev == NULL) { | |
626 | ASSERT(ops == &vdev_root_ops); | |
627 | spa->spa_root_vdev = vd; | |
3541dc6d | 628 | spa->spa_load_guid = spa_generate_guid(NULL); |
34dc7c2f BB |
629 | } |
630 | ||
428870ff | 631 | if (guid == 0 && ops != &vdev_hole_ops) { |
34dc7c2f BB |
632 | if (spa->spa_root_vdev == vd) { |
633 | /* | |
634 | * The root vdev's guid will also be the pool guid, | |
635 | * which must be unique among all pools. | |
636 | */ | |
428870ff | 637 | guid = spa_generate_guid(NULL); |
34dc7c2f BB |
638 | } else { |
639 | /* | |
640 | * Any other vdev's guid must be unique within the pool. | |
641 | */ | |
428870ff | 642 | guid = spa_generate_guid(spa); |
34dc7c2f BB |
643 | } |
644 | ASSERT(!spa_guid_exists(spa_guid(spa), guid)); | |
645 | } | |
646 | ||
647 | vd->vdev_spa = spa; | |
648 | vd->vdev_id = id; | |
649 | vd->vdev_guid = guid; | |
650 | vd->vdev_guid_sum = guid; | |
651 | vd->vdev_ops = ops; | |
652 | vd->vdev_state = VDEV_STATE_CLOSED; | |
428870ff | 653 | vd->vdev_ishole = (ops == &vdev_hole_ops); |
a1d477c2 MA |
654 | vic->vic_prev_indirect_vdev = UINT64_MAX; |
655 | ||
656 | rw_init(&vd->vdev_indirect_rwlock, NULL, RW_DEFAULT, NULL); | |
657 | mutex_init(&vd->vdev_obsolete_lock, NULL, MUTEX_DEFAULT, NULL); | |
ca577779 PD |
658 | vd->vdev_obsolete_segments = range_tree_create(NULL, RANGE_SEG64, NULL, |
659 | 0, 0); | |
34dc7c2f | 660 | |
6078881a TH |
661 | /* |
662 | * Initialize rate limit structs for events. We rate limit ZIO delay | |
663 | * and checksum events so that we don't overwhelm ZED with thousands | |
664 | * of events when a disk is acting up. | |
665 | */ | |
ad796b8a TH |
666 | zfs_ratelimit_init(&vd->vdev_delay_rl, &zfs_slow_io_events_per_second, |
667 | 1); | |
e778b048 RM |
668 | zfs_ratelimit_init(&vd->vdev_deadman_rl, &zfs_slow_io_events_per_second, |
669 | 1); | |
ad796b8a TH |
670 | zfs_ratelimit_init(&vd->vdev_checksum_rl, |
671 | &zfs_checksum_events_per_second, 1); | |
6078881a | 672 | |
69f024a5 RW |
673 | /* |
674 | * Default Thresholds for tuning ZED | |
675 | */ | |
676 | vd->vdev_checksum_n = vdev_prop_default_numeric(VDEV_PROP_CHECKSUM_N); | |
677 | vd->vdev_checksum_t = vdev_prop_default_numeric(VDEV_PROP_CHECKSUM_T); | |
678 | vd->vdev_io_n = vdev_prop_default_numeric(VDEV_PROP_IO_N); | |
679 | vd->vdev_io_t = vdev_prop_default_numeric(VDEV_PROP_IO_T); | |
cbe88229 DB |
680 | vd->vdev_slow_io_n = vdev_prop_default_numeric(VDEV_PROP_SLOW_IO_N); |
681 | vd->vdev_slow_io_t = vdev_prop_default_numeric(VDEV_PROP_SLOW_IO_T); | |
69f024a5 | 682 | |
98f72a53 BB |
683 | list_link_init(&vd->vdev_config_dirty_node); |
684 | list_link_init(&vd->vdev_state_dirty_node); | |
c10d37dd | 685 | list_link_init(&vd->vdev_initialize_node); |
3d31aad8 | 686 | list_link_init(&vd->vdev_leaf_node); |
1b939560 | 687 | list_link_init(&vd->vdev_trim_node); |
b2255edc | 688 | |
448d7aaa | 689 | mutex_init(&vd->vdev_dtl_lock, NULL, MUTEX_NOLOCKDEP, NULL); |
34dc7c2f | 690 | mutex_init(&vd->vdev_stat_lock, NULL, MUTEX_DEFAULT, NULL); |
b128c09f | 691 | mutex_init(&vd->vdev_probe_lock, NULL, MUTEX_DEFAULT, NULL); |
d4a72f23 | 692 | mutex_init(&vd->vdev_scan_io_queue_lock, NULL, MUTEX_DEFAULT, NULL); |
9a49d3f3 | 693 | |
619f0976 GW |
694 | mutex_init(&vd->vdev_initialize_lock, NULL, MUTEX_DEFAULT, NULL); |
695 | mutex_init(&vd->vdev_initialize_io_lock, NULL, MUTEX_DEFAULT, NULL); | |
696 | cv_init(&vd->vdev_initialize_cv, NULL, CV_DEFAULT, NULL); | |
697 | cv_init(&vd->vdev_initialize_io_cv, NULL, CV_DEFAULT, NULL); | |
9a49d3f3 | 698 | |
1b939560 BB |
699 | mutex_init(&vd->vdev_trim_lock, NULL, MUTEX_DEFAULT, NULL); |
700 | mutex_init(&vd->vdev_autotrim_lock, NULL, MUTEX_DEFAULT, NULL); | |
701 | mutex_init(&vd->vdev_trim_io_lock, NULL, MUTEX_DEFAULT, NULL); | |
702 | cv_init(&vd->vdev_trim_cv, NULL, CV_DEFAULT, NULL); | |
703 | cv_init(&vd->vdev_autotrim_cv, NULL, CV_DEFAULT, NULL); | |
65d10bd8 | 704 | cv_init(&vd->vdev_autotrim_kick_cv, NULL, CV_DEFAULT, NULL); |
1b939560 | 705 | cv_init(&vd->vdev_trim_io_cv, NULL, CV_DEFAULT, NULL); |
6078881a | 706 | |
9a49d3f3 | 707 | mutex_init(&vd->vdev_rebuild_lock, NULL, MUTEX_DEFAULT, NULL); |
9a49d3f3 | 708 | cv_init(&vd->vdev_rebuild_cv, NULL, CV_DEFAULT, NULL); |
9a49d3f3 | 709 | |
1c27024e | 710 | for (int t = 0; t < DTL_TYPES; t++) { |
ca577779 PD |
711 | vd->vdev_dtl[t] = range_tree_create(NULL, RANGE_SEG64, NULL, 0, |
712 | 0); | |
fb5f0bc8 | 713 | } |
9a49d3f3 | 714 | |
4747a7d3 | 715 | txg_list_create(&vd->vdev_ms_list, spa, |
34dc7c2f | 716 | offsetof(struct metaslab, ms_txg_node)); |
4747a7d3 | 717 | txg_list_create(&vd->vdev_dtl_list, spa, |
34dc7c2f BB |
718 | offsetof(struct vdev, vdev_dtl_node)); |
719 | vd->vdev_stat.vs_timestamp = gethrtime(); | |
720 | vdev_queue_init(vd); | |
34dc7c2f BB |
721 | |
722 | return (vd); | |
723 | } | |
724 | ||
725 | /* | |
726 | * Allocate a new vdev. The 'alloctype' is used to control whether we are | |
727 | * creating a new vdev or loading an existing one - the behavior is slightly | |
728 | * different for each case. | |
729 | */ | |
730 | int | |
731 | vdev_alloc(spa_t *spa, vdev_t **vdp, nvlist_t *nv, vdev_t *parent, uint_t id, | |
732 | int alloctype) | |
733 | { | |
734 | vdev_ops_t *ops; | |
d1807f16 | 735 | const char *type; |
b2255edc | 736 | uint64_t guid = 0, islog; |
34dc7c2f | 737 | vdev_t *vd; |
a1d477c2 | 738 | vdev_indirect_config_t *vic; |
d1807f16 | 739 | const char *tmp = NULL; |
4a283c7f | 740 | int rc; |
cc99f275 DB |
741 | vdev_alloc_bias_t alloc_bias = VDEV_BIAS_NONE; |
742 | boolean_t top_level = (parent && !parent->vdev_parent); | |
34dc7c2f | 743 | |
b128c09f | 744 | ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL); |
34dc7c2f BB |
745 | |
746 | if (nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) != 0) | |
2e528b49 | 747 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
748 | |
749 | if ((ops = vdev_getops(type)) == NULL) | |
2e528b49 | 750 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
751 | |
752 | /* | |
753 | * If this is a load, get the vdev guid from the nvlist. | |
754 | * Otherwise, vdev_alloc_common() will generate one for us. | |
755 | */ | |
756 | if (alloctype == VDEV_ALLOC_LOAD) { | |
757 | uint64_t label_id; | |
758 | ||
759 | if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_ID, &label_id) || | |
760 | label_id != id) | |
2e528b49 | 761 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
762 | |
763 | if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid) != 0) | |
2e528b49 | 764 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
765 | } else if (alloctype == VDEV_ALLOC_SPARE) { |
766 | if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid) != 0) | |
2e528b49 | 767 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
768 | } else if (alloctype == VDEV_ALLOC_L2CACHE) { |
769 | if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid) != 0) | |
2e528b49 | 770 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
771 | } else if (alloctype == VDEV_ALLOC_ROOTPOOL) { |
772 | if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid) != 0) | |
2e528b49 | 773 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
774 | } |
775 | ||
776 | /* | |
777 | * The first allocated vdev must be of type 'root'. | |
778 | */ | |
779 | if (ops != &vdev_root_ops && spa->spa_root_vdev == NULL) | |
2e528b49 | 780 | return (SET_ERROR(EINVAL)); |
34dc7c2f BB |
781 | |
782 | /* | |
783 | * Determine whether we're a log vdev. | |
784 | */ | |
785 | islog = 0; | |
786 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_LOG, &islog); | |
787 | if (islog && spa_version(spa) < SPA_VERSION_SLOGS) | |
2e528b49 | 788 | return (SET_ERROR(ENOTSUP)); |
34dc7c2f | 789 | |
428870ff | 790 | if (ops == &vdev_hole_ops && spa_version(spa) < SPA_VERSION_HOLES) |
2e528b49 | 791 | return (SET_ERROR(ENOTSUP)); |
428870ff | 792 | |
cc99f275 | 793 | if (top_level && alloctype == VDEV_ALLOC_ADD) { |
d1807f16 | 794 | const char *bias; |
cc99f275 | 795 | |
b2255edc BB |
796 | /* |
797 | * If creating a top-level vdev, check for allocation | |
798 | * classes input. | |
799 | */ | |
cc99f275 DB |
800 | if (nvlist_lookup_string(nv, ZPOOL_CONFIG_ALLOCATION_BIAS, |
801 | &bias) == 0) { | |
802 | alloc_bias = vdev_derive_alloc_bias(bias); | |
803 | ||
804 | /* spa_vdev_add() expects feature to be enabled */ | |
805 | if (spa->spa_load_state != SPA_LOAD_CREATE && | |
806 | !spa_feature_is_enabled(spa, | |
807 | SPA_FEATURE_ALLOCATION_CLASSES)) { | |
808 | return (SET_ERROR(ENOTSUP)); | |
809 | } | |
810 | } | |
b2255edc BB |
811 | |
812 | /* spa_vdev_add() expects feature to be enabled */ | |
813 | if (ops == &vdev_draid_ops && | |
814 | spa->spa_load_state != SPA_LOAD_CREATE && | |
815 | !spa_feature_is_enabled(spa, SPA_FEATURE_DRAID)) { | |
816 | return (SET_ERROR(ENOTSUP)); | |
817 | } | |
cc99f275 DB |
818 | } |
819 | ||
b2255edc BB |
820 | /* |
821 | * Initialize the vdev specific data. This is done before calling | |
822 | * vdev_alloc_common() since it may fail and this simplifies the | |
823 | * error reporting and cleanup code paths. | |
824 | */ | |
825 | void *tsd = NULL; | |
826 | if (ops->vdev_op_init != NULL) { | |
827 | rc = ops->vdev_op_init(spa, nv, &tsd); | |
828 | if (rc != 0) { | |
829 | return (rc); | |
830 | } | |
831 | } | |
34dc7c2f | 832 | |
b2255edc BB |
833 | vd = vdev_alloc_common(spa, id, guid, ops); |
834 | vd->vdev_tsd = tsd; | |
34dc7c2f | 835 | vd->vdev_islog = islog; |
b2255edc | 836 | |
cc99f275 DB |
837 | if (top_level && alloc_bias != VDEV_BIAS_NONE) |
838 | vd->vdev_alloc_bias = alloc_bias; | |
34dc7c2f | 839 | |
d1807f16 RY |
840 | if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &tmp) == 0) |
841 | vd->vdev_path = spa_strdup(tmp); | |
4a283c7f TH |
842 | |
843 | /* | |
844 | * ZPOOL_CONFIG_AUX_STATE = "external" means we previously forced a | |
845 | * fault on a vdev and want it to persist across imports (like with | |
846 | * zpool offline -f). | |
847 | */ | |
848 | rc = nvlist_lookup_string(nv, ZPOOL_CONFIG_AUX_STATE, &tmp); | |
849 | if (rc == 0 && tmp != NULL && strcmp(tmp, "external") == 0) { | |
850 | vd->vdev_stat.vs_aux = VDEV_AUX_EXTERNAL; | |
851 | vd->vdev_faulted = 1; | |
852 | vd->vdev_label_aux = VDEV_AUX_EXTERNAL; | |
853 | } | |
854 | ||
d1807f16 RY |
855 | if (nvlist_lookup_string(nv, ZPOOL_CONFIG_DEVID, &tmp) == 0) |
856 | vd->vdev_devid = spa_strdup(tmp); | |
857 | if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PHYS_PATH, &tmp) == 0) | |
858 | vd->vdev_physpath = spa_strdup(tmp); | |
1bbd8770 TH |
859 | |
860 | if (nvlist_lookup_string(nv, ZPOOL_CONFIG_VDEV_ENC_SYSFS_PATH, | |
d1807f16 RY |
861 | &tmp) == 0) |
862 | vd->vdev_enc_sysfs_path = spa_strdup(tmp); | |
1bbd8770 | 863 | |
d1807f16 RY |
864 | if (nvlist_lookup_string(nv, ZPOOL_CONFIG_FRU, &tmp) == 0) |
865 | vd->vdev_fru = spa_strdup(tmp); | |
34dc7c2f BB |
866 | |
867 | /* | |
868 | * Set the whole_disk property. If it's not specified, leave the value | |
869 | * as -1. | |
870 | */ | |
871 | if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_WHOLE_DISK, | |
872 | &vd->vdev_wholedisk) != 0) | |
873 | vd->vdev_wholedisk = -1ULL; | |
874 | ||
b2255edc BB |
875 | vic = &vd->vdev_indirect_config; |
876 | ||
a1d477c2 MA |
877 | ASSERT0(vic->vic_mapping_object); |
878 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_INDIRECT_OBJECT, | |
879 | &vic->vic_mapping_object); | |
880 | ASSERT0(vic->vic_births_object); | |
881 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_INDIRECT_BIRTHS, | |
882 | &vic->vic_births_object); | |
883 | ASSERT3U(vic->vic_prev_indirect_vdev, ==, UINT64_MAX); | |
884 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_PREV_INDIRECT_VDEV, | |
885 | &vic->vic_prev_indirect_vdev); | |
886 | ||
34dc7c2f BB |
887 | /* |
888 | * Look for the 'not present' flag. This will only be set if the device | |
889 | * was not present at the time of import. | |
890 | */ | |
9babb374 BB |
891 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NOT_PRESENT, |
892 | &vd->vdev_not_present); | |
34dc7c2f BB |
893 | |
894 | /* | |
4d2dad04 AH |
895 | * Get the alignment requirement. Ignore pool ashift for vdev |
896 | * attach case. | |
34dc7c2f | 897 | */ |
4d2dad04 AH |
898 | if (alloctype != VDEV_ALLOC_ATTACH) { |
899 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_ASHIFT, | |
900 | &vd->vdev_ashift); | |
901 | } else { | |
902 | vd->vdev_attaching = B_TRUE; | |
903 | } | |
34dc7c2f | 904 | |
428870ff BB |
905 | /* |
906 | * Retrieve the vdev creation time. | |
907 | */ | |
908 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_CREATE_TXG, | |
909 | &vd->vdev_crtxg); | |
910 | ||
3e4ed421 RW |
911 | if (vd->vdev_ops == &vdev_root_ops && |
912 | (alloctype == VDEV_ALLOC_LOAD || | |
913 | alloctype == VDEV_ALLOC_SPLIT || | |
914 | alloctype == VDEV_ALLOC_ROOTPOOL)) { | |
915 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_VDEV_ROOT_ZAP, | |
916 | &vd->vdev_root_zap); | |
917 | } | |
918 | ||
34dc7c2f BB |
919 | /* |
920 | * If we're a top-level vdev, try to load the allocation parameters. | |
921 | */ | |
cc99f275 | 922 | if (top_level && |
428870ff | 923 | (alloctype == VDEV_ALLOC_LOAD || alloctype == VDEV_ALLOC_SPLIT)) { |
34dc7c2f BB |
924 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_METASLAB_ARRAY, |
925 | &vd->vdev_ms_array); | |
926 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_METASLAB_SHIFT, | |
927 | &vd->vdev_ms_shift); | |
928 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_ASIZE, | |
929 | &vd->vdev_asize); | |
2a673e76 AJ |
930 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NONALLOCATING, |
931 | &vd->vdev_noalloc); | |
428870ff BB |
932 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_REMOVING, |
933 | &vd->vdev_removing); | |
e0ab3ab5 JS |
934 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_VDEV_TOP_ZAP, |
935 | &vd->vdev_top_zap); | |
5caeef02 DB |
936 | vd->vdev_rz_expanding = nvlist_exists(nv, |
937 | ZPOOL_CONFIG_RAIDZ_EXPANDING); | |
e0ab3ab5 JS |
938 | } else { |
939 | ASSERT0(vd->vdev_top_zap); | |
428870ff BB |
940 | } |
941 | ||
cc99f275 | 942 | if (top_level && alloctype != VDEV_ALLOC_ATTACH) { |
428870ff BB |
943 | ASSERT(alloctype == VDEV_ALLOC_LOAD || |
944 | alloctype == VDEV_ALLOC_ADD || | |
945 | alloctype == VDEV_ALLOC_SPLIT || | |
946 | alloctype == VDEV_ALLOC_ROOTPOOL); | |
cc99f275 | 947 | /* Note: metaslab_group_create() is now deferred */ |
34dc7c2f BB |
948 | } |
949 | ||
e0ab3ab5 JS |
950 | if (vd->vdev_ops->vdev_op_leaf && |
951 | (alloctype == VDEV_ALLOC_LOAD || alloctype == VDEV_ALLOC_SPLIT)) { | |
952 | (void) nvlist_lookup_uint64(nv, | |
953 | ZPOOL_CONFIG_VDEV_LEAF_ZAP, &vd->vdev_leaf_zap); | |
954 | } else { | |
955 | ASSERT0(vd->vdev_leaf_zap); | |
956 | } | |
957 | ||
34dc7c2f BB |
958 | /* |
959 | * If we're a leaf vdev, try to load the DTL object and other state. | |
960 | */ | |
e0ab3ab5 | 961 | |
b128c09f | 962 | if (vd->vdev_ops->vdev_op_leaf && |
9babb374 BB |
963 | (alloctype == VDEV_ALLOC_LOAD || alloctype == VDEV_ALLOC_L2CACHE || |
964 | alloctype == VDEV_ALLOC_ROOTPOOL)) { | |
b128c09f BB |
965 | if (alloctype == VDEV_ALLOC_LOAD) { |
966 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_DTL, | |
93cf2076 | 967 | &vd->vdev_dtl_object); |
b128c09f BB |
968 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_UNSPARE, |
969 | &vd->vdev_unspare); | |
970 | } | |
9babb374 BB |
971 | |
972 | if (alloctype == VDEV_ALLOC_ROOTPOOL) { | |
973 | uint64_t spare = 0; | |
974 | ||
975 | if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_SPARE, | |
976 | &spare) == 0 && spare) | |
977 | spa_spare_add(vd); | |
978 | } | |
979 | ||
34dc7c2f BB |
980 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_OFFLINE, |
981 | &vd->vdev_offline); | |
b128c09f | 982 | |
5d1f7fb6 GW |
983 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_RESILVER_TXG, |
984 | &vd->vdev_resilver_txg); | |
572e2857 | 985 | |
9a49d3f3 BB |
986 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_REBUILD_TXG, |
987 | &vd->vdev_rebuild_txg); | |
988 | ||
80a91e74 | 989 | if (nvlist_exists(nv, ZPOOL_CONFIG_RESILVER_DEFER)) |
3c819a2c | 990 | vdev_defer_resilver(vd); |
80a91e74 | 991 | |
34dc7c2f | 992 | /* |
4a283c7f TH |
993 | * In general, when importing a pool we want to ignore the |
994 | * persistent fault state, as the diagnosis made on another | |
995 | * system may not be valid in the current context. The only | |
996 | * exception is if we forced a vdev to a persistently faulted | |
997 | * state with 'zpool offline -f'. The persistent fault will | |
998 | * remain across imports until cleared. | |
999 | * | |
1000 | * Local vdevs will remain in the faulted state. | |
34dc7c2f | 1001 | */ |
4a283c7f TH |
1002 | if (spa_load_state(spa) == SPA_LOAD_OPEN || |
1003 | spa_load_state(spa) == SPA_LOAD_IMPORT) { | |
34dc7c2f BB |
1004 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_FAULTED, |
1005 | &vd->vdev_faulted); | |
1006 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_DEGRADED, | |
1007 | &vd->vdev_degraded); | |
1008 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_REMOVED, | |
1009 | &vd->vdev_removed); | |
428870ff BB |
1010 | |
1011 | if (vd->vdev_faulted || vd->vdev_degraded) { | |
d1807f16 | 1012 | const char *aux; |
428870ff BB |
1013 | |
1014 | vd->vdev_label_aux = | |
1015 | VDEV_AUX_ERR_EXCEEDED; | |
1016 | if (nvlist_lookup_string(nv, | |
1017 | ZPOOL_CONFIG_AUX_STATE, &aux) == 0 && | |
1018 | strcmp(aux, "external") == 0) | |
1019 | vd->vdev_label_aux = VDEV_AUX_EXTERNAL; | |
a0ad7ca5 TC |
1020 | else |
1021 | vd->vdev_faulted = 0ULL; | |
428870ff | 1022 | } |
34dc7c2f BB |
1023 | } |
1024 | } | |
1025 | ||
1026 | /* | |
1027 | * Add ourselves to the parent's list of children. | |
1028 | */ | |
1029 | vdev_add_child(parent, vd); | |
1030 | ||
1031 | *vdp = vd; | |
1032 | ||
1033 | return (0); | |
1034 | } | |
1035 | ||
1036 | void | |
1037 | vdev_free(vdev_t *vd) | |
1038 | { | |
34dc7c2f | 1039 | spa_t *spa = vd->vdev_spa; |
1b939560 | 1040 | |
619f0976 | 1041 | ASSERT3P(vd->vdev_initialize_thread, ==, NULL); |
1b939560 BB |
1042 | ASSERT3P(vd->vdev_trim_thread, ==, NULL); |
1043 | ASSERT3P(vd->vdev_autotrim_thread, ==, NULL); | |
9a49d3f3 | 1044 | ASSERT3P(vd->vdev_rebuild_thread, ==, NULL); |
34dc7c2f | 1045 | |
d4a72f23 TC |
1046 | /* |
1047 | * Scan queues are normally destroyed at the end of a scan. If the | |
1048 | * queue exists here, that implies the vdev is being removed while | |
1049 | * the scan is still running. | |
1050 | */ | |
1051 | if (vd->vdev_scan_io_queue != NULL) { | |
1052 | mutex_enter(&vd->vdev_scan_io_queue_lock); | |
1053 | dsl_scan_io_queue_destroy(vd->vdev_scan_io_queue); | |
1054 | vd->vdev_scan_io_queue = NULL; | |
1055 | mutex_exit(&vd->vdev_scan_io_queue_lock); | |
1056 | } | |
1057 | ||
34dc7c2f BB |
1058 | /* |
1059 | * vdev_free() implies closing the vdev first. This is simpler than | |
1060 | * trying to ensure complicated semantics for all callers. | |
1061 | */ | |
1062 | vdev_close(vd); | |
1063 | ||
b128c09f | 1064 | ASSERT(!list_link_active(&vd->vdev_config_dirty_node)); |
428870ff | 1065 | ASSERT(!list_link_active(&vd->vdev_state_dirty_node)); |
34dc7c2f BB |
1066 | |
1067 | /* | |
1068 | * Free all children. | |
1069 | */ | |
1c27024e | 1070 | for (int c = 0; c < vd->vdev_children; c++) |
34dc7c2f BB |
1071 | vdev_free(vd->vdev_child[c]); |
1072 | ||
1073 | ASSERT(vd->vdev_child == NULL); | |
1074 | ASSERT(vd->vdev_guid_sum == vd->vdev_guid); | |
1075 | ||
b2255edc BB |
1076 | if (vd->vdev_ops->vdev_op_fini != NULL) |
1077 | vd->vdev_ops->vdev_op_fini(vd); | |
1078 | ||
34dc7c2f BB |
1079 | /* |
1080 | * Discard allocation state. | |
1081 | */ | |
428870ff | 1082 | if (vd->vdev_mg != NULL) { |
34dc7c2f | 1083 | vdev_metaslab_fini(vd); |
428870ff | 1084 | metaslab_group_destroy(vd->vdev_mg); |
93e28d66 | 1085 | vd->vdev_mg = NULL; |
428870ff | 1086 | } |
aa755b35 MA |
1087 | if (vd->vdev_log_mg != NULL) { |
1088 | ASSERT0(vd->vdev_ms_count); | |
1089 | metaslab_group_destroy(vd->vdev_log_mg); | |
1090 | vd->vdev_log_mg = NULL; | |
1091 | } | |
34dc7c2f | 1092 | |
c99c9001 MS |
1093 | ASSERT0(vd->vdev_stat.vs_space); |
1094 | ASSERT0(vd->vdev_stat.vs_dspace); | |
1095 | ASSERT0(vd->vdev_stat.vs_alloc); | |
34dc7c2f BB |
1096 | |
1097 | /* | |
1098 | * Remove this vdev from its parent's child list. | |
1099 | */ | |
1100 | vdev_remove_child(vd->vdev_parent, vd); | |
1101 | ||
1102 | ASSERT(vd->vdev_parent == NULL); | |
3d31aad8 | 1103 | ASSERT(!list_link_active(&vd->vdev_leaf_node)); |
34dc7c2f BB |
1104 | |
1105 | /* | |
1106 | * Clean up vdev structure. | |
1107 | */ | |
1108 | vdev_queue_fini(vd); | |
34dc7c2f BB |
1109 | |
1110 | if (vd->vdev_path) | |
1111 | spa_strfree(vd->vdev_path); | |
1112 | if (vd->vdev_devid) | |
1113 | spa_strfree(vd->vdev_devid); | |
1114 | if (vd->vdev_physpath) | |
1115 | spa_strfree(vd->vdev_physpath); | |
1bbd8770 TH |
1116 | |
1117 | if (vd->vdev_enc_sysfs_path) | |
1118 | spa_strfree(vd->vdev_enc_sysfs_path); | |
1119 | ||
9babb374 BB |
1120 | if (vd->vdev_fru) |
1121 | spa_strfree(vd->vdev_fru); | |
34dc7c2f BB |
1122 | |
1123 | if (vd->vdev_isspare) | |
1124 | spa_spare_remove(vd); | |
1125 | if (vd->vdev_isl2cache) | |
1126 | spa_l2cache_remove(vd); | |
1127 | ||
1128 | txg_list_destroy(&vd->vdev_ms_list); | |
1129 | txg_list_destroy(&vd->vdev_dtl_list); | |
fb5f0bc8 | 1130 | |
34dc7c2f | 1131 | mutex_enter(&vd->vdev_dtl_lock); |
93cf2076 | 1132 | space_map_close(vd->vdev_dtl_sm); |
1c27024e | 1133 | for (int t = 0; t < DTL_TYPES; t++) { |
93cf2076 GW |
1134 | range_tree_vacate(vd->vdev_dtl[t], NULL, NULL); |
1135 | range_tree_destroy(vd->vdev_dtl[t]); | |
fb5f0bc8 | 1136 | } |
34dc7c2f | 1137 | mutex_exit(&vd->vdev_dtl_lock); |
fb5f0bc8 | 1138 | |
a1d477c2 MA |
1139 | EQUIV(vd->vdev_indirect_births != NULL, |
1140 | vd->vdev_indirect_mapping != NULL); | |
1141 | if (vd->vdev_indirect_births != NULL) { | |
1142 | vdev_indirect_mapping_close(vd->vdev_indirect_mapping); | |
1143 | vdev_indirect_births_close(vd->vdev_indirect_births); | |
1144 | } | |
1145 | ||
1146 | if (vd->vdev_obsolete_sm != NULL) { | |
1147 | ASSERT(vd->vdev_removing || | |
1148 | vd->vdev_ops == &vdev_indirect_ops); | |
1149 | space_map_close(vd->vdev_obsolete_sm); | |
1150 | vd->vdev_obsolete_sm = NULL; | |
1151 | } | |
1152 | range_tree_destroy(vd->vdev_obsolete_segments); | |
1153 | rw_destroy(&vd->vdev_indirect_rwlock); | |
1154 | mutex_destroy(&vd->vdev_obsolete_lock); | |
1155 | ||
34dc7c2f BB |
1156 | mutex_destroy(&vd->vdev_dtl_lock); |
1157 | mutex_destroy(&vd->vdev_stat_lock); | |
b128c09f | 1158 | mutex_destroy(&vd->vdev_probe_lock); |
d4a72f23 | 1159 | mutex_destroy(&vd->vdev_scan_io_queue_lock); |
9a49d3f3 | 1160 | |
619f0976 GW |
1161 | mutex_destroy(&vd->vdev_initialize_lock); |
1162 | mutex_destroy(&vd->vdev_initialize_io_lock); | |
1163 | cv_destroy(&vd->vdev_initialize_io_cv); | |
1164 | cv_destroy(&vd->vdev_initialize_cv); | |
9a49d3f3 | 1165 | |
1b939560 BB |
1166 | mutex_destroy(&vd->vdev_trim_lock); |
1167 | mutex_destroy(&vd->vdev_autotrim_lock); | |
1168 | mutex_destroy(&vd->vdev_trim_io_lock); | |
1169 | cv_destroy(&vd->vdev_trim_cv); | |
1170 | cv_destroy(&vd->vdev_autotrim_cv); | |
65d10bd8 | 1171 | cv_destroy(&vd->vdev_autotrim_kick_cv); |
1b939560 | 1172 | cv_destroy(&vd->vdev_trim_io_cv); |
34dc7c2f | 1173 | |
9a49d3f3 | 1174 | mutex_destroy(&vd->vdev_rebuild_lock); |
9a49d3f3 | 1175 | cv_destroy(&vd->vdev_rebuild_cv); |
9a49d3f3 | 1176 | |
c17486b2 | 1177 | zfs_ratelimit_fini(&vd->vdev_delay_rl); |
e778b048 | 1178 | zfs_ratelimit_fini(&vd->vdev_deadman_rl); |
c17486b2 GN |
1179 | zfs_ratelimit_fini(&vd->vdev_checksum_rl); |
1180 | ||
34dc7c2f BB |
1181 | if (vd == spa->spa_root_vdev) |
1182 | spa->spa_root_vdev = NULL; | |
1183 | ||
1184 | kmem_free(vd, sizeof (vdev_t)); | |
1185 | } | |
1186 | ||
1187 | /* | |
1188 | * Transfer top-level vdev state from svd to tvd. | |
1189 | */ | |
1190 | static void | |
1191 | vdev_top_transfer(vdev_t *svd, vdev_t *tvd) | |
1192 | { | |
1193 | spa_t *spa = svd->vdev_spa; | |
1194 | metaslab_t *msp; | |
1195 | vdev_t *vd; | |
1196 | int t; | |
1197 | ||
1198 | ASSERT(tvd == tvd->vdev_top); | |
1199 | ||
1200 | tvd->vdev_ms_array = svd->vdev_ms_array; | |
1201 | tvd->vdev_ms_shift = svd->vdev_ms_shift; | |
1202 | tvd->vdev_ms_count = svd->vdev_ms_count; | |
e0ab3ab5 | 1203 | tvd->vdev_top_zap = svd->vdev_top_zap; |
34dc7c2f BB |
1204 | |
1205 | svd->vdev_ms_array = 0; | |
1206 | svd->vdev_ms_shift = 0; | |
1207 | svd->vdev_ms_count = 0; | |
e0ab3ab5 | 1208 | svd->vdev_top_zap = 0; |
34dc7c2f | 1209 | |
5ffb9d1d GW |
1210 | if (tvd->vdev_mg) |
1211 | ASSERT3P(tvd->vdev_mg, ==, svd->vdev_mg); | |
aa755b35 MA |
1212 | if (tvd->vdev_log_mg) |
1213 | ASSERT3P(tvd->vdev_log_mg, ==, svd->vdev_log_mg); | |
34dc7c2f | 1214 | tvd->vdev_mg = svd->vdev_mg; |
aa755b35 | 1215 | tvd->vdev_log_mg = svd->vdev_log_mg; |
34dc7c2f BB |
1216 | tvd->vdev_ms = svd->vdev_ms; |
1217 | ||
1218 | svd->vdev_mg = NULL; | |
aa755b35 | 1219 | svd->vdev_log_mg = NULL; |
34dc7c2f BB |
1220 | svd->vdev_ms = NULL; |
1221 | ||
1222 | if (tvd->vdev_mg != NULL) | |
1223 | tvd->vdev_mg->mg_vd = tvd; | |
aa755b35 MA |
1224 | if (tvd->vdev_log_mg != NULL) |
1225 | tvd->vdev_log_mg->mg_vd = tvd; | |
34dc7c2f | 1226 | |
d2734cce SD |
1227 | tvd->vdev_checkpoint_sm = svd->vdev_checkpoint_sm; |
1228 | svd->vdev_checkpoint_sm = NULL; | |
1229 | ||
cc99f275 DB |
1230 | tvd->vdev_alloc_bias = svd->vdev_alloc_bias; |
1231 | svd->vdev_alloc_bias = VDEV_BIAS_NONE; | |
1232 | ||
34dc7c2f BB |
1233 | tvd->vdev_stat.vs_alloc = svd->vdev_stat.vs_alloc; |
1234 | tvd->vdev_stat.vs_space = svd->vdev_stat.vs_space; | |
1235 | tvd->vdev_stat.vs_dspace = svd->vdev_stat.vs_dspace; | |
1236 | ||
1237 | svd->vdev_stat.vs_alloc = 0; | |
1238 | svd->vdev_stat.vs_space = 0; | |
1239 | svd->vdev_stat.vs_dspace = 0; | |
1240 | ||
9e052db4 MA |
1241 | /* |
1242 | * State which may be set on a top-level vdev that's in the | |
1243 | * process of being removed. | |
1244 | */ | |
1245 | ASSERT0(tvd->vdev_indirect_config.vic_births_object); | |
1246 | ASSERT0(tvd->vdev_indirect_config.vic_mapping_object); | |
1247 | ASSERT3U(tvd->vdev_indirect_config.vic_prev_indirect_vdev, ==, -1ULL); | |
1248 | ASSERT3P(tvd->vdev_indirect_mapping, ==, NULL); | |
1249 | ASSERT3P(tvd->vdev_indirect_births, ==, NULL); | |
1250 | ASSERT3P(tvd->vdev_obsolete_sm, ==, NULL); | |
2a673e76 | 1251 | ASSERT0(tvd->vdev_noalloc); |
9e052db4 | 1252 | ASSERT0(tvd->vdev_removing); |
9a49d3f3 | 1253 | ASSERT0(tvd->vdev_rebuilding); |
2a673e76 | 1254 | tvd->vdev_noalloc = svd->vdev_noalloc; |
9e052db4 | 1255 | tvd->vdev_removing = svd->vdev_removing; |
9a49d3f3 BB |
1256 | tvd->vdev_rebuilding = svd->vdev_rebuilding; |
1257 | tvd->vdev_rebuild_config = svd->vdev_rebuild_config; | |
9e052db4 MA |
1258 | tvd->vdev_indirect_config = svd->vdev_indirect_config; |
1259 | tvd->vdev_indirect_mapping = svd->vdev_indirect_mapping; | |
1260 | tvd->vdev_indirect_births = svd->vdev_indirect_births; | |
1261 | range_tree_swap(&svd->vdev_obsolete_segments, | |
1262 | &tvd->vdev_obsolete_segments); | |
1263 | tvd->vdev_obsolete_sm = svd->vdev_obsolete_sm; | |
1264 | svd->vdev_indirect_config.vic_mapping_object = 0; | |
1265 | svd->vdev_indirect_config.vic_births_object = 0; | |
1266 | svd->vdev_indirect_config.vic_prev_indirect_vdev = -1ULL; | |
1267 | svd->vdev_indirect_mapping = NULL; | |
1268 | svd->vdev_indirect_births = NULL; | |
1269 | svd->vdev_obsolete_sm = NULL; | |
2a673e76 | 1270 | svd->vdev_noalloc = 0; |
9e052db4 | 1271 | svd->vdev_removing = 0; |
9a49d3f3 | 1272 | svd->vdev_rebuilding = 0; |
9e052db4 | 1273 | |
34dc7c2f BB |
1274 | for (t = 0; t < TXG_SIZE; t++) { |
1275 | while ((msp = txg_list_remove(&svd->vdev_ms_list, t)) != NULL) | |
1276 | (void) txg_list_add(&tvd->vdev_ms_list, msp, t); | |
1277 | while ((vd = txg_list_remove(&svd->vdev_dtl_list, t)) != NULL) | |
1278 | (void) txg_list_add(&tvd->vdev_dtl_list, vd, t); | |
1279 | if (txg_list_remove_this(&spa->spa_vdev_txg_list, svd, t)) | |
1280 | (void) txg_list_add(&spa->spa_vdev_txg_list, tvd, t); | |
1281 | } | |
1282 | ||
b128c09f | 1283 | if (list_link_active(&svd->vdev_config_dirty_node)) { |
34dc7c2f BB |
1284 | vdev_config_clean(svd); |
1285 | vdev_config_dirty(tvd); | |
1286 | } | |
1287 | ||
b128c09f BB |
1288 | if (list_link_active(&svd->vdev_state_dirty_node)) { |
1289 | vdev_state_clean(svd); | |
1290 | vdev_state_dirty(tvd); | |
1291 | } | |
1292 | ||
34dc7c2f BB |
1293 | tvd->vdev_deflate_ratio = svd->vdev_deflate_ratio; |
1294 | svd->vdev_deflate_ratio = 0; | |
1295 | ||
1296 | tvd->vdev_islog = svd->vdev_islog; | |
1297 | svd->vdev_islog = 0; | |
d4a72f23 TC |
1298 | |
1299 | dsl_scan_io_queue_vdev_xfer(svd, tvd); | |
34dc7c2f BB |
1300 | } |
1301 | ||
1302 | static void | |
1303 | vdev_top_update(vdev_t *tvd, vdev_t *vd) | |
1304 | { | |
34dc7c2f BB |
1305 | if (vd == NULL) |
1306 | return; | |
1307 | ||
1308 | vd->vdev_top = tvd; | |
1309 | ||
1c27024e | 1310 | for (int c = 0; c < vd->vdev_children; c++) |
34dc7c2f BB |
1311 | vdev_top_update(tvd, vd->vdev_child[c]); |
1312 | } | |
1313 | ||
1314 | /* | |
b2255edc BB |
1315 | * Add a mirror/replacing vdev above an existing vdev. There is no need to |
1316 | * call .vdev_op_init() since mirror/replacing vdevs do not have private state. | |
34dc7c2f BB |
1317 | */ |
1318 | vdev_t * | |
1319 | vdev_add_parent(vdev_t *cvd, vdev_ops_t *ops) | |
1320 | { | |
1321 | spa_t *spa = cvd->vdev_spa; | |
1322 | vdev_t *pvd = cvd->vdev_parent; | |
1323 | vdev_t *mvd; | |
1324 | ||
b128c09f | 1325 | ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL); |
34dc7c2f BB |
1326 | |
1327 | mvd = vdev_alloc_common(spa, cvd->vdev_id, 0, ops); | |
1328 | ||
1329 | mvd->vdev_asize = cvd->vdev_asize; | |
9babb374 | 1330 | mvd->vdev_min_asize = cvd->vdev_min_asize; |
1bd201e7 | 1331 | mvd->vdev_max_asize = cvd->vdev_max_asize; |
a1d477c2 | 1332 | mvd->vdev_psize = cvd->vdev_psize; |
34dc7c2f | 1333 | mvd->vdev_ashift = cvd->vdev_ashift; |
6fe3498c RM |
1334 | mvd->vdev_logical_ashift = cvd->vdev_logical_ashift; |
1335 | mvd->vdev_physical_ashift = cvd->vdev_physical_ashift; | |
34dc7c2f | 1336 | mvd->vdev_state = cvd->vdev_state; |
428870ff | 1337 | mvd->vdev_crtxg = cvd->vdev_crtxg; |
34dc7c2f BB |
1338 | |
1339 | vdev_remove_child(pvd, cvd); | |
1340 | vdev_add_child(pvd, mvd); | |
1341 | cvd->vdev_id = mvd->vdev_children; | |
1342 | vdev_add_child(mvd, cvd); | |
1343 | vdev_top_update(cvd->vdev_top, cvd->vdev_top); | |
1344 | ||
1345 | if (mvd == mvd->vdev_top) | |
1346 | vdev_top_transfer(cvd, mvd); | |
1347 | ||
1348 | return (mvd); | |
1349 | } | |
1350 | ||
1351 | /* | |
1352 | * Remove a 1-way mirror/replacing vdev from the tree. | |
1353 | */ | |
1354 | void | |
1355 | vdev_remove_parent(vdev_t *cvd) | |
1356 | { | |
1357 | vdev_t *mvd = cvd->vdev_parent; | |
1358 | vdev_t *pvd = mvd->vdev_parent; | |
1359 | ||
b128c09f | 1360 | ASSERT(spa_config_held(cvd->vdev_spa, SCL_ALL, RW_WRITER) == SCL_ALL); |
34dc7c2f BB |
1361 | |
1362 | ASSERT(mvd->vdev_children == 1); | |
1363 | ASSERT(mvd->vdev_ops == &vdev_mirror_ops || | |
1364 | mvd->vdev_ops == &vdev_replacing_ops || | |
1365 | mvd->vdev_ops == &vdev_spare_ops); | |
1366 | cvd->vdev_ashift = mvd->vdev_ashift; | |
6fe3498c RM |
1367 | cvd->vdev_logical_ashift = mvd->vdev_logical_ashift; |
1368 | cvd->vdev_physical_ashift = mvd->vdev_physical_ashift; | |
34dc7c2f BB |
1369 | vdev_remove_child(mvd, cvd); |
1370 | vdev_remove_child(pvd, mvd); | |
fb5f0bc8 | 1371 | |
34dc7c2f | 1372 | /* |
b128c09f BB |
1373 | * If cvd will replace mvd as a top-level vdev, preserve mvd's guid. |
1374 | * Otherwise, we could have detached an offline device, and when we | |
1375 | * go to import the pool we'll think we have two top-level vdevs, | |
1376 | * instead of a different version of the same top-level vdev. | |
34dc7c2f | 1377 | */ |
fb5f0bc8 BB |
1378 | if (mvd->vdev_top == mvd) { |
1379 | uint64_t guid_delta = mvd->vdev_guid - cvd->vdev_guid; | |
428870ff | 1380 | cvd->vdev_orig_guid = cvd->vdev_guid; |
fb5f0bc8 BB |
1381 | cvd->vdev_guid += guid_delta; |
1382 | cvd->vdev_guid_sum += guid_delta; | |
61e99a73 AB |
1383 | |
1384 | /* | |
1385 | * If pool not set for autoexpand, we need to also preserve | |
1386 | * mvd's asize to prevent automatic expansion of cvd. | |
1387 | * Otherwise if we are adjusting the mirror by attaching and | |
1388 | * detaching children of non-uniform sizes, the mirror could | |
1389 | * autoexpand, unexpectedly requiring larger devices to | |
1390 | * re-establish the mirror. | |
1391 | */ | |
1392 | if (!cvd->vdev_spa->spa_autoexpand) | |
1393 | cvd->vdev_asize = mvd->vdev_asize; | |
fb5f0bc8 | 1394 | } |
b128c09f BB |
1395 | cvd->vdev_id = mvd->vdev_id; |
1396 | vdev_add_child(pvd, cvd); | |
34dc7c2f BB |
1397 | vdev_top_update(cvd->vdev_top, cvd->vdev_top); |
1398 | ||
1399 | if (cvd == cvd->vdev_top) | |
1400 | vdev_top_transfer(mvd, cvd); | |
1401 | ||
1402 | ASSERT(mvd->vdev_children == 0); | |
1403 | vdev_free(mvd); | |
1404 | } | |
1405 | ||
d9bb583c AH |
1406 | /* |
1407 | * Choose GCD for spa_gcd_alloc. | |
1408 | */ | |
1409 | static uint64_t | |
1410 | vdev_gcd(uint64_t a, uint64_t b) | |
1411 | { | |
1412 | while (b != 0) { | |
1413 | uint64_t t = b; | |
1414 | b = a % b; | |
1415 | a = t; | |
1416 | } | |
1417 | return (a); | |
1418 | } | |
1419 | ||
1420 | /* | |
1421 | * Set spa_min_alloc and spa_gcd_alloc. | |
1422 | */ | |
1423 | static void | |
1424 | vdev_spa_set_alloc(spa_t *spa, uint64_t min_alloc) | |
1425 | { | |
1426 | if (min_alloc < spa->spa_min_alloc) | |
1427 | spa->spa_min_alloc = min_alloc; | |
1428 | if (spa->spa_gcd_alloc == INT_MAX) { | |
1429 | spa->spa_gcd_alloc = min_alloc; | |
1430 | } else { | |
1431 | spa->spa_gcd_alloc = vdev_gcd(min_alloc, | |
1432 | spa->spa_gcd_alloc); | |
1433 | } | |
1434 | } | |
1435 | ||
aa755b35 | 1436 | void |
cc99f275 DB |
1437 | vdev_metaslab_group_create(vdev_t *vd) |
1438 | { | |
1439 | spa_t *spa = vd->vdev_spa; | |
1440 | ||
1441 | /* | |
1442 | * metaslab_group_create was delayed until allocation bias was available | |
1443 | */ | |
1444 | if (vd->vdev_mg == NULL) { | |
1445 | metaslab_class_t *mc; | |
1446 | ||
1447 | if (vd->vdev_islog && vd->vdev_alloc_bias == VDEV_BIAS_NONE) | |
1448 | vd->vdev_alloc_bias = VDEV_BIAS_LOG; | |
1449 | ||
1450 | ASSERT3U(vd->vdev_islog, ==, | |
1451 | (vd->vdev_alloc_bias == VDEV_BIAS_LOG)); | |
1452 | ||
1453 | switch (vd->vdev_alloc_bias) { | |
1454 | case VDEV_BIAS_LOG: | |
1455 | mc = spa_log_class(spa); | |
1456 | break; | |
1457 | case VDEV_BIAS_SPECIAL: | |
1458 | mc = spa_special_class(spa); | |
1459 | break; | |
1460 | case VDEV_BIAS_DEDUP: | |
1461 | mc = spa_dedup_class(spa); | |
1462 | break; | |
1463 | default: | |
1464 | mc = spa_normal_class(spa); | |
1465 | } | |
1466 | ||
1467 | vd->vdev_mg = metaslab_group_create(mc, vd, | |
1468 | spa->spa_alloc_count); | |
1469 | ||
aa755b35 MA |
1470 | if (!vd->vdev_islog) { |
1471 | vd->vdev_log_mg = metaslab_group_create( | |
1472 | spa_embedded_log_class(spa), vd, 1); | |
1473 | } | |
1474 | ||
cc99f275 | 1475 | /* |
dff71c79 | 1476 | * The spa ashift min/max only apply for the normal metaslab |
bf169e9f | 1477 | * class. Class destination is late binding so ashift boundary |
dff71c79 | 1478 | * setting had to wait until now. |
cc99f275 DB |
1479 | */ |
1480 | if (vd->vdev_top == vd && vd->vdev_ashift != 0 && | |
1481 | mc == spa_normal_class(spa) && vd->vdev_aux == NULL) { | |
1482 | if (vd->vdev_ashift > spa->spa_max_ashift) | |
1483 | spa->spa_max_ashift = vd->vdev_ashift; | |
1484 | if (vd->vdev_ashift < spa->spa_min_ashift) | |
1485 | spa->spa_min_ashift = vd->vdev_ashift; | |
b2255edc BB |
1486 | |
1487 | uint64_t min_alloc = vdev_get_min_alloc(vd); | |
d9bb583c | 1488 | vdev_spa_set_alloc(spa, min_alloc); |
cc99f275 DB |
1489 | } |
1490 | } | |
1491 | } | |
1492 | ||
34dc7c2f BB |
1493 | int |
1494 | vdev_metaslab_init(vdev_t *vd, uint64_t txg) | |
1495 | { | |
1496 | spa_t *spa = vd->vdev_spa; | |
34dc7c2f BB |
1497 | uint64_t oldc = vd->vdev_ms_count; |
1498 | uint64_t newc = vd->vdev_asize >> vd->vdev_ms_shift; | |
1499 | metaslab_t **mspp; | |
1500 | int error; | |
cc99f275 | 1501 | boolean_t expanding = (oldc != 0); |
34dc7c2f | 1502 | |
428870ff BB |
1503 | ASSERT(txg == 0 || spa_config_held(spa, SCL_ALLOC, RW_WRITER)); |
1504 | ||
1505 | /* | |
1506 | * This vdev is not being allocated from yet or is a hole. | |
1507 | */ | |
1508 | if (vd->vdev_ms_shift == 0) | |
34dc7c2f BB |
1509 | return (0); |
1510 | ||
428870ff BB |
1511 | ASSERT(!vd->vdev_ishole); |
1512 | ||
34dc7c2f BB |
1513 | ASSERT(oldc <= newc); |
1514 | ||
bffb68a2 | 1515 | mspp = vmem_zalloc(newc * sizeof (*mspp), KM_SLEEP); |
34dc7c2f | 1516 | |
cc99f275 | 1517 | if (expanding) { |
861166b0 | 1518 | memcpy(mspp, vd->vdev_ms, oldc * sizeof (*mspp)); |
bffb68a2 | 1519 | vmem_free(vd->vdev_ms, oldc * sizeof (*mspp)); |
34dc7c2f BB |
1520 | } |
1521 | ||
1522 | vd->vdev_ms = mspp; | |
1523 | vd->vdev_ms_count = newc; | |
93cf2076 | 1524 | |
aa755b35 MA |
1525 | for (uint64_t m = oldc; m < newc; m++) { |
1526 | uint64_t object = 0; | |
a1d477c2 MA |
1527 | /* |
1528 | * vdev_ms_array may be 0 if we are creating the "fake" | |
1529 | * metaslabs for an indirect vdev for zdb's leak detection. | |
1530 | * See zdb_leak_init(). | |
1531 | */ | |
1532 | if (txg == 0 && vd->vdev_ms_array != 0) { | |
aa755b35 MA |
1533 | error = dmu_read(spa->spa_meta_objset, |
1534 | vd->vdev_ms_array, | |
9babb374 BB |
1535 | m * sizeof (uint64_t), sizeof (uint64_t), &object, |
1536 | DMU_READ_PREFETCH); | |
4a0ee12a PZ |
1537 | if (error != 0) { |
1538 | vdev_dbgmsg(vd, "unable to read the metaslab " | |
1539 | "array [error=%d]", error); | |
34dc7c2f | 1540 | return (error); |
4a0ee12a | 1541 | } |
34dc7c2f | 1542 | } |
fb42a493 PS |
1543 | |
1544 | error = metaslab_init(vd->vdev_mg, m, object, txg, | |
1545 | &(vd->vdev_ms[m])); | |
4a0ee12a PZ |
1546 | if (error != 0) { |
1547 | vdev_dbgmsg(vd, "metaslab_init failed [error=%d]", | |
1548 | error); | |
fb42a493 | 1549 | return (error); |
4a0ee12a | 1550 | } |
34dc7c2f BB |
1551 | } |
1552 | ||
aa755b35 MA |
1553 | /* |
1554 | * Find the emptiest metaslab on the vdev and mark it for use for | |
1555 | * embedded slog by moving it from the regular to the log metaslab | |
1556 | * group. | |
1557 | */ | |
1558 | if (vd->vdev_mg->mg_class == spa_normal_class(spa) && | |
1559 | vd->vdev_ms_count > zfs_embedded_slog_min_ms && | |
1560 | avl_is_empty(&vd->vdev_log_mg->mg_metaslab_tree)) { | |
1561 | uint64_t slog_msid = 0; | |
1562 | uint64_t smallest = UINT64_MAX; | |
1563 | ||
1564 | /* | |
1565 | * Note, we only search the new metaslabs, because the old | |
1566 | * (pre-existing) ones may be active (e.g. have non-empty | |
1567 | * range_tree's), and we don't move them to the new | |
1568 | * metaslab_t. | |
1569 | */ | |
1570 | for (uint64_t m = oldc; m < newc; m++) { | |
1571 | uint64_t alloc = | |
1572 | space_map_allocated(vd->vdev_ms[m]->ms_sm); | |
1573 | if (alloc < smallest) { | |
1574 | slog_msid = m; | |
1575 | smallest = alloc; | |
1576 | } | |
1577 | } | |
1578 | metaslab_t *slog_ms = vd->vdev_ms[slog_msid]; | |
1579 | /* | |
1580 | * The metaslab was marked as dirty at the end of | |
1581 | * metaslab_init(). Remove it from the dirty list so that we | |
1582 | * can uninitialize and reinitialize it to the new class. | |
1583 | */ | |
1584 | if (txg != 0) { | |
1585 | (void) txg_list_remove_this(&vd->vdev_ms_list, | |
1586 | slog_ms, txg); | |
1587 | } | |
1588 | uint64_t sm_obj = space_map_object(slog_ms->ms_sm); | |
1589 | metaslab_fini(slog_ms); | |
1590 | VERIFY0(metaslab_init(vd->vdev_log_mg, slog_msid, sm_obj, txg, | |
1591 | &vd->vdev_ms[slog_msid])); | |
1592 | } | |
1593 | ||
428870ff BB |
1594 | if (txg == 0) |
1595 | spa_config_enter(spa, SCL_ALLOC, FTAG, RW_WRITER); | |
1596 | ||
1597 | /* | |
2a673e76 AJ |
1598 | * If the vdev is marked as non-allocating then don't |
1599 | * activate the metaslabs since we want to ensure that | |
1600 | * no allocations are performed on this device. | |
428870ff | 1601 | */ |
2a673e76 AJ |
1602 | if (vd->vdev_noalloc) { |
1603 | /* track non-allocating vdev space */ | |
1604 | spa->spa_nonallocating_dspace += spa_deflate(spa) ? | |
1605 | vd->vdev_stat.vs_dspace : vd->vdev_stat.vs_space; | |
1606 | } else if (!expanding) { | |
428870ff | 1607 | metaslab_group_activate(vd->vdev_mg); |
aa755b35 MA |
1608 | if (vd->vdev_log_mg != NULL) |
1609 | metaslab_group_activate(vd->vdev_log_mg); | |
cc99f275 | 1610 | } |
428870ff BB |
1611 | |
1612 | if (txg == 0) | |
1613 | spa_config_exit(spa, SCL_ALLOC, FTAG); | |
1614 | ||
34dc7c2f BB |
1615 | return (0); |
1616 | } | |
1617 | ||
1618 | void | |
1619 | vdev_metaslab_fini(vdev_t *vd) | |
1620 | { | |
d2734cce SD |
1621 | if (vd->vdev_checkpoint_sm != NULL) { |
1622 | ASSERT(spa_feature_is_active(vd->vdev_spa, | |
1623 | SPA_FEATURE_POOL_CHECKPOINT)); | |
1624 | space_map_close(vd->vdev_checkpoint_sm); | |
1625 | /* | |
1626 | * Even though we close the space map, we need to set its | |
1627 | * pointer to NULL. The reason is that vdev_metaslab_fini() | |
1628 | * may be called multiple times for certain operations | |
1629 | * (i.e. when destroying a pool) so we need to ensure that | |
1630 | * this clause never executes twice. This logic is similar | |
1631 | * to the one used for the vdev_ms clause below. | |
1632 | */ | |
1633 | vd->vdev_checkpoint_sm = NULL; | |
1634 | } | |
1635 | ||
34dc7c2f | 1636 | if (vd->vdev_ms != NULL) { |
928e8ad4 | 1637 | metaslab_group_t *mg = vd->vdev_mg; |
aa755b35 | 1638 | |
928e8ad4 | 1639 | metaslab_group_passivate(mg); |
aa755b35 MA |
1640 | if (vd->vdev_log_mg != NULL) { |
1641 | ASSERT(!vd->vdev_islog); | |
1642 | metaslab_group_passivate(vd->vdev_log_mg); | |
1643 | } | |
a1d477c2 | 1644 | |
928e8ad4 | 1645 | uint64_t count = vd->vdev_ms_count; |
a1d477c2 | 1646 | for (uint64_t m = 0; m < count; m++) { |
93cf2076 | 1647 | metaslab_t *msp = vd->vdev_ms[m]; |
93cf2076 GW |
1648 | if (msp != NULL) |
1649 | metaslab_fini(msp); | |
1650 | } | |
bffb68a2 | 1651 | vmem_free(vd->vdev_ms, count * sizeof (metaslab_t *)); |
34dc7c2f | 1652 | vd->vdev_ms = NULL; |
a1d477c2 | 1653 | vd->vdev_ms_count = 0; |
928e8ad4 | 1654 | |
aa755b35 | 1655 | for (int i = 0; i < RANGE_TREE_HISTOGRAM_SIZE; i++) { |
928e8ad4 | 1656 | ASSERT0(mg->mg_histogram[i]); |
aa755b35 MA |
1657 | if (vd->vdev_log_mg != NULL) |
1658 | ASSERT0(vd->vdev_log_mg->mg_histogram[i]); | |
1659 | } | |
a1d477c2 MA |
1660 | } |
1661 | ASSERT0(vd->vdev_ms_count); | |
34dc7c2f BB |
1662 | } |
1663 | ||
b128c09f BB |
1664 | typedef struct vdev_probe_stats { |
1665 | boolean_t vps_readable; | |
1666 | boolean_t vps_writeable; | |
1667 | int vps_flags; | |
b128c09f BB |
1668 | } vdev_probe_stats_t; |
1669 | ||
1670 | static void | |
1671 | vdev_probe_done(zio_t *zio) | |
34dc7c2f | 1672 | { |
fb5f0bc8 | 1673 | spa_t *spa = zio->io_spa; |
d164b209 | 1674 | vdev_t *vd = zio->io_vd; |
b128c09f | 1675 | vdev_probe_stats_t *vps = zio->io_private; |
d164b209 BB |
1676 | |
1677 | ASSERT(vd->vdev_probe_zio != NULL); | |
b128c09f BB |
1678 | |
1679 | if (zio->io_type == ZIO_TYPE_READ) { | |
b128c09f BB |
1680 | if (zio->io_error == 0) |
1681 | vps->vps_readable = 1; | |
fb5f0bc8 | 1682 | if (zio->io_error == 0 && spa_writeable(spa)) { |
d164b209 | 1683 | zio_nowait(zio_write_phys(vd->vdev_probe_zio, vd, |
a6255b7f | 1684 | zio->io_offset, zio->io_size, zio->io_abd, |
b128c09f BB |
1685 | ZIO_CHECKSUM_OFF, vdev_probe_done, vps, |
1686 | ZIO_PRIORITY_SYNC_WRITE, vps->vps_flags, B_TRUE)); | |
1687 | } else { | |
a6255b7f | 1688 | abd_free(zio->io_abd); |
b128c09f BB |
1689 | } |
1690 | } else if (zio->io_type == ZIO_TYPE_WRITE) { | |
b128c09f BB |
1691 | if (zio->io_error == 0) |
1692 | vps->vps_writeable = 1; | |
a6255b7f | 1693 | abd_free(zio->io_abd); |
b128c09f | 1694 | } else if (zio->io_type == ZIO_TYPE_NULL) { |
d164b209 | 1695 | zio_t *pio; |
3dfb57a3 | 1696 | zio_link_t *zl; |
b128c09f BB |
1697 | |
1698 | vd->vdev_cant_read |= !vps->vps_readable; | |
1699 | vd->vdev_cant_write |= !vps->vps_writeable; | |
5caeef02 DB |
1700 | vdev_dbgmsg(vd, "probe done, cant_read=%u cant_write=%u", |
1701 | vd->vdev_cant_read, vd->vdev_cant_write); | |
b128c09f BB |
1702 | |
1703 | if (vdev_readable(vd) && | |
fb5f0bc8 | 1704 | (vdev_writeable(vd) || !spa_writeable(spa))) { |
b128c09f BB |
1705 | zio->io_error = 0; |
1706 | } else { | |
1707 | ASSERT(zio->io_error != 0); | |
4a0ee12a | 1708 | vdev_dbgmsg(vd, "failed probe"); |
1144586b | 1709 | (void) zfs_ereport_post(FM_EREPORT_ZFS_PROBE_FAILURE, |
4f072827 | 1710 | spa, vd, NULL, NULL, 0); |
2e528b49 | 1711 | zio->io_error = SET_ERROR(ENXIO); |
b128c09f | 1712 | } |
d164b209 BB |
1713 | |
1714 | mutex_enter(&vd->vdev_probe_lock); | |
1715 | ASSERT(vd->vdev_probe_zio == zio); | |
1716 | vd->vdev_probe_zio = NULL; | |
1717 | mutex_exit(&vd->vdev_probe_lock); | |
1718 | ||
3dfb57a3 DB |
1719 | zl = NULL; |
1720 | while ((pio = zio_walk_parents(zio, &zl)) != NULL) | |
d164b209 | 1721 | if (!vdev_accessible(vd, pio)) |
2e528b49 | 1722 | pio->io_error = SET_ERROR(ENXIO); |
d164b209 | 1723 | |
b128c09f BB |
1724 | kmem_free(vps, sizeof (*vps)); |
1725 | } | |
1726 | } | |
34dc7c2f | 1727 | |
b128c09f | 1728 | /* |
d3cc8b15 WA |
1729 | * Determine whether this device is accessible. |
1730 | * | |
1731 | * Read and write to several known locations: the pad regions of each | |
1732 | * vdev label but the first, which we leave alone in case it contains | |
1733 | * a VTOC. | |
b128c09f BB |
1734 | */ |
1735 | zio_t * | |
d164b209 | 1736 | vdev_probe(vdev_t *vd, zio_t *zio) |
b128c09f BB |
1737 | { |
1738 | spa_t *spa = vd->vdev_spa; | |
d164b209 BB |
1739 | vdev_probe_stats_t *vps = NULL; |
1740 | zio_t *pio; | |
1741 | ||
1742 | ASSERT(vd->vdev_ops->vdev_op_leaf); | |
34dc7c2f | 1743 | |
d164b209 BB |
1744 | /* |
1745 | * Don't probe the probe. | |
1746 | */ | |
1747 | if (zio && (zio->io_flags & ZIO_FLAG_PROBE)) | |
1748 | return (NULL); | |
b128c09f | 1749 | |
d164b209 BB |
1750 | /* |
1751 | * To prevent 'probe storms' when a device fails, we create | |
1752 | * just one probe i/o at a time. All zios that want to probe | |
1753 | * this vdev will become parents of the probe io. | |
1754 | */ | |
1755 | mutex_enter(&vd->vdev_probe_lock); | |
b128c09f | 1756 | |
d164b209 | 1757 | if ((pio = vd->vdev_probe_zio) == NULL) { |
79c76d5b | 1758 | vps = kmem_zalloc(sizeof (*vps), KM_SLEEP); |
d164b209 BB |
1759 | |
1760 | vps->vps_flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_PROBE | | |
70ea484e | 1761 | ZIO_FLAG_DONT_AGGREGATE | ZIO_FLAG_TRYHARD; |
d164b209 BB |
1762 | |
1763 | if (spa_config_held(spa, SCL_ZIO, RW_WRITER)) { | |
1764 | /* | |
1765 | * vdev_cant_read and vdev_cant_write can only | |
1766 | * transition from TRUE to FALSE when we have the | |
1767 | * SCL_ZIO lock as writer; otherwise they can only | |
1768 | * transition from FALSE to TRUE. This ensures that | |
1769 | * any zio looking at these values can assume that | |
1770 | * failures persist for the life of the I/O. That's | |
1771 | * important because when a device has intermittent | |
1772 | * connectivity problems, we want to ensure that | |
1773 | * they're ascribed to the device (ENXIO) and not | |
1774 | * the zio (EIO). | |
1775 | * | |
1776 | * Since we hold SCL_ZIO as writer here, clear both | |
1777 | * values so the probe can reevaluate from first | |
1778 | * principles. | |
1779 | */ | |
1780 | vps->vps_flags |= ZIO_FLAG_CONFIG_WRITER; | |
1781 | vd->vdev_cant_read = B_FALSE; | |
1782 | vd->vdev_cant_write = B_FALSE; | |
1783 | } | |
1784 | ||
1785 | vd->vdev_probe_zio = pio = zio_null(NULL, spa, vd, | |
1786 | vdev_probe_done, vps, | |
1787 | vps->vps_flags | ZIO_FLAG_DONT_PROPAGATE); | |
1788 | ||
428870ff BB |
1789 | /* |
1790 | * We can't change the vdev state in this context, so we | |
1791 | * kick off an async task to do it on our behalf. | |
1792 | */ | |
d164b209 BB |
1793 | if (zio != NULL) { |
1794 | vd->vdev_probe_wanted = B_TRUE; | |
1795 | spa_async_request(spa, SPA_ASYNC_PROBE); | |
1796 | } | |
b128c09f BB |
1797 | } |
1798 | ||
d164b209 BB |
1799 | if (zio != NULL) |
1800 | zio_add_child(zio, pio); | |
b128c09f | 1801 | |
d164b209 | 1802 | mutex_exit(&vd->vdev_probe_lock); |
b128c09f | 1803 | |
d164b209 BB |
1804 | if (vps == NULL) { |
1805 | ASSERT(zio != NULL); | |
1806 | return (NULL); | |
1807 | } | |
b128c09f | 1808 | |
1c27024e | 1809 | for (int l = 1; l < VDEV_LABELS; l++) { |
d164b209 | 1810 | zio_nowait(zio_read_phys(pio, vd, |
b128c09f | 1811 | vdev_label_offset(vd->vdev_psize, l, |
108a454a | 1812 | offsetof(vdev_label_t, vl_be)), VDEV_PAD_SIZE, |
a6255b7f | 1813 | abd_alloc_for_io(VDEV_PAD_SIZE, B_TRUE), |
b128c09f BB |
1814 | ZIO_CHECKSUM_OFF, vdev_probe_done, vps, |
1815 | ZIO_PRIORITY_SYNC_READ, vps->vps_flags, B_TRUE)); | |
1816 | } | |
1817 | ||
d164b209 BB |
1818 | if (zio == NULL) |
1819 | return (pio); | |
1820 | ||
1821 | zio_nowait(pio); | |
1822 | return (NULL); | |
34dc7c2f BB |
1823 | } |
1824 | ||
a0e01997 AS |
1825 | static void |
1826 | vdev_load_child(void *arg) | |
1827 | { | |
1828 | vdev_t *vd = arg; | |
1829 | ||
1830 | vd->vdev_load_error = vdev_load(vd); | |
1831 | } | |
1832 | ||
45d1cae3 BB |
1833 | static void |
1834 | vdev_open_child(void *arg) | |
1835 | { | |
1836 | vdev_t *vd = arg; | |
1837 | ||
1838 | vd->vdev_open_thread = curthread; | |
1839 | vd->vdev_open_error = vdev_open(vd); | |
1840 | vd->vdev_open_thread = NULL; | |
1841 | } | |
1842 | ||
6c285672 | 1843 | static boolean_t |
428870ff BB |
1844 | vdev_uses_zvols(vdev_t *vd) |
1845 | { | |
6c285672 JL |
1846 | #ifdef _KERNEL |
1847 | if (zvol_is_zvol(vd->vdev_path)) | |
428870ff | 1848 | return (B_TRUE); |
6c285672 JL |
1849 | #endif |
1850 | ||
1c27024e | 1851 | for (int c = 0; c < vd->vdev_children; c++) |
428870ff BB |
1852 | if (vdev_uses_zvols(vd->vdev_child[c])) |
1853 | return (B_TRUE); | |
6c285672 | 1854 | |
428870ff BB |
1855 | return (B_FALSE); |
1856 | } | |
1857 | ||
b2255edc BB |
1858 | /* |
1859 | * Returns B_TRUE if the passed child should be opened. | |
1860 | */ | |
1861 | static boolean_t | |
1862 | vdev_default_open_children_func(vdev_t *vd) | |
1863 | { | |
14e4e3cb | 1864 | (void) vd; |
b2255edc BB |
1865 | return (B_TRUE); |
1866 | } | |
1867 | ||
1868 | /* | |
1869 | * Open the requested child vdevs. If any of the leaf vdevs are using | |
1870 | * a ZFS volume then do the opens in a single thread. This avoids a | |
1871 | * deadlock when the current thread is holding the spa_namespace_lock. | |
1872 | */ | |
1873 | static void | |
1874 | vdev_open_children_impl(vdev_t *vd, vdev_open_children_func_t *open_func) | |
45d1cae3 | 1875 | { |
45d1cae3 BB |
1876 | int children = vd->vdev_children; |
1877 | ||
b2255edc BB |
1878 | taskq_t *tq = taskq_create("vdev_open", children, minclsyspri, |
1879 | children, children, TASKQ_PREPOPULATE); | |
1880 | vd->vdev_nonrot = B_TRUE; | |
45d1cae3 | 1881 | |
b2255edc BB |
1882 | for (int c = 0; c < children; c++) { |
1883 | vdev_t *cvd = vd->vdev_child[c]; | |
1884 | ||
1885 | if (open_func(cvd) == B_FALSE) | |
1886 | continue; | |
1887 | ||
1888 | if (tq == NULL || vdev_uses_zvols(vd)) { | |
1889 | cvd->vdev_open_error = vdev_open(cvd); | |
1890 | } else { | |
4770aa06 | 1891 | VERIFY(taskq_dispatch(tq, vdev_open_child, |
b2255edc BB |
1892 | cvd, TQ_SLEEP) != TASKQID_INVALID); |
1893 | } | |
45d1cae3 | 1894 | |
b2255edc BB |
1895 | vd->vdev_nonrot &= cvd->vdev_nonrot; |
1896 | } | |
1897 | ||
1898 | if (tq != NULL) { | |
1899 | taskq_wait(tq); | |
4770aa06 HJ |
1900 | taskq_destroy(tq); |
1901 | } | |
b2255edc | 1902 | } |
4770aa06 | 1903 | |
b2255edc BB |
1904 | /* |
1905 | * Open all child vdevs. | |
1906 | */ | |
1907 | void | |
1908 | vdev_open_children(vdev_t *vd) | |
1909 | { | |
1910 | vdev_open_children_impl(vd, vdev_default_open_children_func); | |
1911 | } | |
fb40095f | 1912 | |
b2255edc BB |
1913 | /* |
1914 | * Conditionally open a subset of child vdevs. | |
1915 | */ | |
1916 | void | |
1917 | vdev_open_children_subset(vdev_t *vd, vdev_open_children_func_t *open_func) | |
1918 | { | |
1919 | vdev_open_children_impl(vd, open_func); | |
45d1cae3 BB |
1920 | } |
1921 | ||
a1d477c2 | 1922 | /* |
5caeef02 DB |
1923 | * Compute the raidz-deflation ratio. Note, we hard-code 128k (1 << 17) |
1924 | * because it is the "typical" blocksize. Even though SPA_MAXBLOCKSIZE | |
1925 | * changed, this algorithm can not change, otherwise it would inconsistently | |
1926 | * account for existing bp's. We also hard-code txg 0 for the same reason | |
1927 | * since expanded RAIDZ vdevs can use a different asize for different birth | |
1928 | * txg's. | |
a1d477c2 MA |
1929 | */ |
1930 | static void | |
1931 | vdev_set_deflate_ratio(vdev_t *vd) | |
1932 | { | |
1933 | if (vd == vd->vdev_top && !vd->vdev_ishole && vd->vdev_ashift != 0) { | |
1934 | vd->vdev_deflate_ratio = (1 << 17) / | |
5caeef02 DB |
1935 | (vdev_psize_to_asize_txg(vd, 1 << 17, 0) >> |
1936 | SPA_MINBLOCKSHIFT); | |
a1d477c2 MA |
1937 | } |
1938 | } | |
1939 | ||
37f6845c AM |
1940 | /* |
1941 | * Choose the best of two ashifts, preferring one between logical ashift | |
1942 | * (absolute minimum) and administrator defined maximum, otherwise take | |
1943 | * the biggest of the two. | |
1944 | */ | |
1945 | uint64_t | |
1946 | vdev_best_ashift(uint64_t logical, uint64_t a, uint64_t b) | |
1947 | { | |
1948 | if (a > logical && a <= zfs_vdev_max_auto_ashift) { | |
1949 | if (b <= logical || b > zfs_vdev_max_auto_ashift) | |
1950 | return (a); | |
1951 | else | |
1952 | return (MAX(a, b)); | |
1953 | } else if (b <= logical || b > zfs_vdev_max_auto_ashift) | |
1954 | return (MAX(a, b)); | |
1955 | return (b); | |
1956 | } | |
1957 | ||
c494aa7f GW |
1958 | /* |
1959 | * Maximize performance by inflating the configured ashift for top level | |
1960 | * vdevs to be as close to the physical ashift as possible while maintaining | |
1961 | * administrator defined limits and ensuring it doesn't go below the | |
1962 | * logical ashift. | |
1963 | */ | |
1964 | static void | |
1965 | vdev_ashift_optimize(vdev_t *vd) | |
1966 | { | |
1967 | ASSERT(vd == vd->vdev_top); | |
1968 | ||
37f6845c AM |
1969 | if (vd->vdev_ashift < vd->vdev_physical_ashift && |
1970 | vd->vdev_physical_ashift <= zfs_vdev_max_auto_ashift) { | |
c494aa7f GW |
1971 | vd->vdev_ashift = MIN( |
1972 | MAX(zfs_vdev_max_auto_ashift, vd->vdev_ashift), | |
1973 | MAX(zfs_vdev_min_auto_ashift, | |
1974 | vd->vdev_physical_ashift)); | |
1975 | } else { | |
1976 | /* | |
1977 | * If the logical and physical ashifts are the same, then | |
1978 | * we ensure that the top-level vdev's ashift is not smaller | |
1979 | * than our minimum ashift value. For the unusual case | |
1980 | * where logical ashift > physical ashift, we can't cap | |
1981 | * the calculated ashift based on max ashift as that | |
1982 | * would cause failures. | |
1983 | * We still check if we need to increase it to match | |
1984 | * the min ashift. | |
1985 | */ | |
1986 | vd->vdev_ashift = MAX(zfs_vdev_min_auto_ashift, | |
1987 | vd->vdev_ashift); | |
1988 | } | |
1989 | } | |
1990 | ||
34dc7c2f BB |
1991 | /* |
1992 | * Prepare a virtual device for access. | |
1993 | */ | |
1994 | int | |
1995 | vdev_open(vdev_t *vd) | |
1996 | { | |
fb5f0bc8 | 1997 | spa_t *spa = vd->vdev_spa; |
34dc7c2f | 1998 | int error; |
34dc7c2f | 1999 | uint64_t osize = 0; |
1bd201e7 CS |
2000 | uint64_t max_osize = 0; |
2001 | uint64_t asize, max_asize, psize; | |
6fe3498c RM |
2002 | uint64_t logical_ashift = 0; |
2003 | uint64_t physical_ashift = 0; | |
34dc7c2f | 2004 | |
45d1cae3 BB |
2005 | ASSERT(vd->vdev_open_thread == curthread || |
2006 | spa_config_held(spa, SCL_STATE_ALL, RW_WRITER) == SCL_STATE_ALL); | |
34dc7c2f BB |
2007 | ASSERT(vd->vdev_state == VDEV_STATE_CLOSED || |
2008 | vd->vdev_state == VDEV_STATE_CANT_OPEN || | |
2009 | vd->vdev_state == VDEV_STATE_OFFLINE); | |
2010 | ||
34dc7c2f | 2011 | vd->vdev_stat.vs_aux = VDEV_AUX_NONE; |
9babb374 BB |
2012 | vd->vdev_cant_read = B_FALSE; |
2013 | vd->vdev_cant_write = B_FALSE; | |
2014 | vd->vdev_min_asize = vdev_get_min_asize(vd); | |
34dc7c2f | 2015 | |
428870ff BB |
2016 | /* |
2017 | * If this vdev is not removed, check its fault status. If it's | |
2018 | * faulted, bail out of the open. | |
2019 | */ | |
34dc7c2f BB |
2020 | if (!vd->vdev_removed && vd->vdev_faulted) { |
2021 | ASSERT(vd->vdev_children == 0); | |
428870ff BB |
2022 | ASSERT(vd->vdev_label_aux == VDEV_AUX_ERR_EXCEEDED || |
2023 | vd->vdev_label_aux == VDEV_AUX_EXTERNAL); | |
34dc7c2f | 2024 | vdev_set_state(vd, B_TRUE, VDEV_STATE_FAULTED, |
428870ff | 2025 | vd->vdev_label_aux); |
2e528b49 | 2026 | return (SET_ERROR(ENXIO)); |
34dc7c2f BB |
2027 | } else if (vd->vdev_offline) { |
2028 | ASSERT(vd->vdev_children == 0); | |
2029 | vdev_set_state(vd, B_TRUE, VDEV_STATE_OFFLINE, VDEV_AUX_NONE); | |
2e528b49 | 2030 | return (SET_ERROR(ENXIO)); |
34dc7c2f BB |
2031 | } |
2032 | ||
6fe3498c RM |
2033 | error = vd->vdev_ops->vdev_op_open(vd, &osize, &max_osize, |
2034 | &logical_ashift, &physical_ashift); | |
55c12724 AH |
2035 | |
2036 | /* Keep the device in removed state if unplugged */ | |
2037 | if (error == ENOENT && vd->vdev_removed) { | |
2038 | vdev_set_state(vd, B_TRUE, VDEV_STATE_REMOVED, | |
2039 | VDEV_AUX_NONE); | |
2040 | return (error); | |
2041 | } | |
2042 | ||
0c637f31 | 2043 | /* |
2044 | * Physical volume size should never be larger than its max size, unless | |
2045 | * the disk has shrunk while we were reading it or the device is buggy | |
2046 | * or damaged: either way it's not safe for use, bail out of the open. | |
2047 | */ | |
2048 | if (osize > max_osize) { | |
2049 | vdev_set_state(vd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
2050 | VDEV_AUX_OPEN_FAILED); | |
2051 | return (SET_ERROR(ENXIO)); | |
2052 | } | |
2053 | ||
428870ff BB |
2054 | /* |
2055 | * Reset the vdev_reopening flag so that we actually close | |
2056 | * the vdev on error. | |
2057 | */ | |
2058 | vd->vdev_reopening = B_FALSE; | |
34dc7c2f | 2059 | if (zio_injection_enabled && error == 0) |
28caa74b | 2060 | error = zio_handle_device_injection(vd, NULL, SET_ERROR(ENXIO)); |
34dc7c2f BB |
2061 | |
2062 | if (error) { | |
2063 | if (vd->vdev_removed && | |
2064 | vd->vdev_stat.vs_aux != VDEV_AUX_OPEN_FAILED) | |
2065 | vd->vdev_removed = B_FALSE; | |
2066 | ||
6cb8e530 PZ |
2067 | if (vd->vdev_stat.vs_aux == VDEV_AUX_CHILDREN_OFFLINE) { |
2068 | vdev_set_state(vd, B_TRUE, VDEV_STATE_OFFLINE, | |
2069 | vd->vdev_stat.vs_aux); | |
2070 | } else { | |
2071 | vdev_set_state(vd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
2072 | vd->vdev_stat.vs_aux); | |
2073 | } | |
34dc7c2f BB |
2074 | return (error); |
2075 | } | |
2076 | ||
2077 | vd->vdev_removed = B_FALSE; | |
2078 | ||
428870ff BB |
2079 | /* |
2080 | * Recheck the faulted flag now that we have confirmed that | |
2081 | * the vdev is accessible. If we're faulted, bail. | |
2082 | */ | |
2083 | if (vd->vdev_faulted) { | |
2084 | ASSERT(vd->vdev_children == 0); | |
2085 | ASSERT(vd->vdev_label_aux == VDEV_AUX_ERR_EXCEEDED || | |
2086 | vd->vdev_label_aux == VDEV_AUX_EXTERNAL); | |
2087 | vdev_set_state(vd, B_TRUE, VDEV_STATE_FAULTED, | |
2088 | vd->vdev_label_aux); | |
2e528b49 | 2089 | return (SET_ERROR(ENXIO)); |
428870ff BB |
2090 | } |
2091 | ||
34dc7c2f BB |
2092 | if (vd->vdev_degraded) { |
2093 | ASSERT(vd->vdev_children == 0); | |
2094 | vdev_set_state(vd, B_TRUE, VDEV_STATE_DEGRADED, | |
2095 | VDEV_AUX_ERR_EXCEEDED); | |
2096 | } else { | |
428870ff | 2097 | vdev_set_state(vd, B_TRUE, VDEV_STATE_HEALTHY, 0); |
34dc7c2f BB |
2098 | } |
2099 | ||
428870ff BB |
2100 | /* |
2101 | * For hole or missing vdevs we just return success. | |
2102 | */ | |
2103 | if (vd->vdev_ishole || vd->vdev_ops == &vdev_missing_ops) | |
2104 | return (0); | |
2105 | ||
1c27024e | 2106 | for (int c = 0; c < vd->vdev_children; c++) { |
34dc7c2f BB |
2107 | if (vd->vdev_child[c]->vdev_state != VDEV_STATE_HEALTHY) { |
2108 | vdev_set_state(vd, B_TRUE, VDEV_STATE_DEGRADED, | |
2109 | VDEV_AUX_NONE); | |
2110 | break; | |
2111 | } | |
9babb374 | 2112 | } |
34dc7c2f BB |
2113 | |
2114 | osize = P2ALIGN(osize, (uint64_t)sizeof (vdev_label_t)); | |
1bd201e7 | 2115 | max_osize = P2ALIGN(max_osize, (uint64_t)sizeof (vdev_label_t)); |
34dc7c2f BB |
2116 | |
2117 | if (vd->vdev_children == 0) { | |
2118 | if (osize < SPA_MINDEVSIZE) { | |
2119 | vdev_set_state(vd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
2120 | VDEV_AUX_TOO_SMALL); | |
2e528b49 | 2121 | return (SET_ERROR(EOVERFLOW)); |
34dc7c2f BB |
2122 | } |
2123 | psize = osize; | |
2124 | asize = osize - (VDEV_LABEL_START_SIZE + VDEV_LABEL_END_SIZE); | |
1bd201e7 CS |
2125 | max_asize = max_osize - (VDEV_LABEL_START_SIZE + |
2126 | VDEV_LABEL_END_SIZE); | |
34dc7c2f BB |
2127 | } else { |
2128 | if (vd->vdev_parent != NULL && osize < SPA_MINDEVSIZE - | |
2129 | (VDEV_LABEL_START_SIZE + VDEV_LABEL_END_SIZE)) { | |
2130 | vdev_set_state(vd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
2131 | VDEV_AUX_TOO_SMALL); | |
2e528b49 | 2132 | return (SET_ERROR(EOVERFLOW)); |
34dc7c2f BB |
2133 | } |
2134 | psize = 0; | |
2135 | asize = osize; | |
1bd201e7 | 2136 | max_asize = max_osize; |
34dc7c2f BB |
2137 | } |
2138 | ||
9d3f7b87 OF |
2139 | /* |
2140 | * If the vdev was expanded, record this so that we can re-create the | |
2141 | * uberblock rings in labels {2,3}, during the next sync. | |
2142 | */ | |
2143 | if ((psize > vd->vdev_psize) && (vd->vdev_psize != 0)) | |
2144 | vd->vdev_copy_uberblocks = B_TRUE; | |
2145 | ||
34dc7c2f BB |
2146 | vd->vdev_psize = psize; |
2147 | ||
9babb374 | 2148 | /* |
2e215fec | 2149 | * Make sure the allocatable size hasn't shrunk too much. |
9babb374 BB |
2150 | */ |
2151 | if (asize < vd->vdev_min_asize) { | |
2152 | vdev_set_state(vd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
2153 | VDEV_AUX_BAD_LABEL); | |
2e528b49 | 2154 | return (SET_ERROR(EINVAL)); |
9babb374 BB |
2155 | } |
2156 | ||
c494aa7f GW |
2157 | /* |
2158 | * We can always set the logical/physical ashift members since | |
2159 | * their values are only used to calculate the vdev_ashift when | |
2160 | * the device is first added to the config. These values should | |
2161 | * not be used for anything else since they may change whenever | |
2162 | * the device is reopened and we don't store them in the label. | |
2163 | */ | |
6fe3498c RM |
2164 | vd->vdev_physical_ashift = |
2165 | MAX(physical_ashift, vd->vdev_physical_ashift); | |
c494aa7f GW |
2166 | vd->vdev_logical_ashift = MAX(logical_ashift, |
2167 | vd->vdev_logical_ashift); | |
6fe3498c | 2168 | |
34dc7c2f BB |
2169 | if (vd->vdev_asize == 0) { |
2170 | /* | |
2171 | * This is the first-ever open, so use the computed values. | |
b28e57cb | 2172 | * For compatibility, a different ashift can be requested. |
34dc7c2f BB |
2173 | */ |
2174 | vd->vdev_asize = asize; | |
1bd201e7 | 2175 | vd->vdev_max_asize = max_asize; |
c494aa7f GW |
2176 | |
2177 | /* | |
bf169e9f | 2178 | * If the vdev_ashift was not overridden at creation time, |
c494aa7f GW |
2179 | * then set it the logical ashift and optimize the ashift. |
2180 | */ | |
2181 | if (vd->vdev_ashift == 0) { | |
2182 | vd->vdev_ashift = vd->vdev_logical_ashift; | |
2183 | ||
2184 | if (vd->vdev_logical_ashift > ASHIFT_MAX) { | |
2185 | vdev_set_state(vd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
2186 | VDEV_AUX_ASHIFT_TOO_BIG); | |
2187 | return (SET_ERROR(EDOM)); | |
2188 | } | |
2189 | ||
4d2dad04 | 2190 | if (vd->vdev_top == vd && vd->vdev_attaching == B_FALSE) |
c494aa7f | 2191 | vdev_ashift_optimize(vd); |
4d2dad04 | 2192 | vd->vdev_attaching = B_FALSE; |
c494aa7f | 2193 | } |
ff61d1a4 | 2194 | if (vd->vdev_ashift != 0 && (vd->vdev_ashift < ASHIFT_MIN || |
2195 | vd->vdev_ashift > ASHIFT_MAX)) { | |
2196 | vdev_set_state(vd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
2197 | VDEV_AUX_BAD_ASHIFT); | |
2198 | return (SET_ERROR(EDOM)); | |
2199 | } | |
34dc7c2f BB |
2200 | } else { |
2201 | /* | |
6fe3498c | 2202 | * Make sure the alignment required hasn't increased. |
34dc7c2f | 2203 | */ |
6fe3498c | 2204 | if (vd->vdev_ashift > vd->vdev_top->vdev_ashift && |
32a9872b | 2205 | vd->vdev_ops->vdev_op_leaf) { |
1144586b TS |
2206 | (void) zfs_ereport_post( |
2207 | FM_EREPORT_ZFS_DEVICE_BAD_ASHIFT, | |
4f072827 | 2208 | spa, vd, NULL, NULL, 0); |
6fe3498c RM |
2209 | vdev_set_state(vd, B_TRUE, VDEV_STATE_CANT_OPEN, |
2210 | VDEV_AUX_BAD_LABEL); | |
2211 | return (SET_ERROR(EDOM)); | |
6fe3498c | 2212 | } |
1bd201e7 | 2213 | vd->vdev_max_asize = max_asize; |
9babb374 | 2214 | } |
34dc7c2f | 2215 | |
9babb374 | 2216 | /* |
2e215fec SH |
2217 | * If all children are healthy we update asize if either: |
2218 | * The asize has increased, due to a device expansion caused by dynamic | |
2219 | * LUN growth or vdev replacement, and automatic expansion is enabled; | |
2220 | * making the additional space available. | |
2221 | * | |
2222 | * The asize has decreased, due to a device shrink usually caused by a | |
2223 | * vdev replace with a smaller device. This ensures that calculations | |
2224 | * based of max_asize and asize e.g. esize are always valid. It's safe | |
2225 | * to do this as we've already validated that asize is greater than | |
2226 | * vdev_min_asize. | |
9babb374 | 2227 | */ |
2e215fec SH |
2228 | if (vd->vdev_state == VDEV_STATE_HEALTHY && |
2229 | ((asize > vd->vdev_asize && | |
2230 | (vd->vdev_expanding || spa->spa_autoexpand)) || | |
2231 | (asize < vd->vdev_asize))) | |
9babb374 | 2232 | vd->vdev_asize = asize; |
34dc7c2f | 2233 | |
9babb374 | 2234 | vdev_set_min_asize(vd); |
34dc7c2f BB |
2235 | |
2236 | /* | |
2237 | * Ensure we can issue some IO before declaring the | |
2238 | * vdev open for business. | |
2239 | */ | |
b128c09f BB |
2240 | if (vd->vdev_ops->vdev_op_leaf && |
2241 | (error = zio_wait(vdev_probe(vd, NULL))) != 0) { | |
428870ff BB |
2242 | vdev_set_state(vd, B_TRUE, VDEV_STATE_FAULTED, |
2243 | VDEV_AUX_ERR_EXCEEDED); | |
34dc7c2f BB |
2244 | return (error); |
2245 | } | |
2246 | ||
b2255edc | 2247 | /* |
bf169e9f | 2248 | * Track the minimum allocation size. |
b2255edc BB |
2249 | */ |
2250 | if (vd->vdev_top == vd && vd->vdev_ashift != 0 && | |
2251 | vd->vdev_islog == 0 && vd->vdev_aux == NULL) { | |
2252 | uint64_t min_alloc = vdev_get_min_alloc(vd); | |
d9bb583c | 2253 | vdev_spa_set_alloc(spa, min_alloc); |
b2255edc BB |
2254 | } |
2255 | ||
34dc7c2f | 2256 | /* |
3c819a2c JP |
2257 | * If this is a leaf vdev, assess whether a resilver is needed. |
2258 | * But don't do this if we are doing a reopen for a scrub, since | |
2259 | * this would just restart the scrub we are already doing. | |
34dc7c2f | 2260 | */ |
3c819a2c JP |
2261 | if (vd->vdev_ops->vdev_op_leaf && !spa->spa_scrub_reopen) |
2262 | dsl_scan_assess_vdev(spa->spa_dsl_pool, vd); | |
34dc7c2f BB |
2263 | |
2264 | return (0); | |
2265 | } | |
2266 | ||
cf0977ad AS |
2267 | static void |
2268 | vdev_validate_child(void *arg) | |
2269 | { | |
2270 | vdev_t *vd = arg; | |
2271 | ||
2272 | vd->vdev_validate_thread = curthread; | |
2273 | vd->vdev_validate_error = vdev_validate(vd); | |
2274 | vd->vdev_validate_thread = NULL; | |
2275 | } | |
2276 | ||
34dc7c2f BB |
2277 | /* |
2278 | * Called once the vdevs are all opened, this routine validates the label | |
6cb8e530 | 2279 | * contents. This needs to be done before vdev_load() so that we don't |
34dc7c2f BB |
2280 | * inadvertently do repair I/Os to the wrong device. |
2281 | * | |
2282 | * This function will only return failure if one of the vdevs indicates that it | |
2283 | * has since been destroyed or exported. This is only possible if | |
2284 | * /etc/zfs/zpool.cache was readonly at the time. Otherwise, the vdev state | |
2285 | * will be updated but the function will return 0. | |
2286 | */ | |
2287 | int | |
6cb8e530 | 2288 | vdev_validate(vdev_t *vd) |
34dc7c2f BB |
2289 | { |
2290 | spa_t *spa = vd->vdev_spa; | |
cf0977ad | 2291 | taskq_t *tq = NULL; |
34dc7c2f | 2292 | nvlist_t *label; |
6cb8e530 | 2293 | uint64_t guid = 0, aux_guid = 0, top_guid; |
34dc7c2f | 2294 | uint64_t state; |
6cb8e530 PZ |
2295 | nvlist_t *nvl; |
2296 | uint64_t txg; | |
cf0977ad | 2297 | int children = vd->vdev_children; |
34dc7c2f | 2298 | |
6cb8e530 PZ |
2299 | if (vdev_validate_skip) |
2300 | return (0); | |
2301 | ||
cf0977ad AS |
2302 | if (children > 0) { |
2303 | tq = taskq_create("vdev_validate", children, minclsyspri, | |
2304 | children, children, TASKQ_PREPOPULATE); | |
2305 | } | |
2306 | ||
2307 | for (uint64_t c = 0; c < children; c++) { | |
2308 | vdev_t *cvd = vd->vdev_child[c]; | |
2309 | ||
2310 | if (tq == NULL || vdev_uses_zvols(cvd)) { | |
2311 | vdev_validate_child(cvd); | |
2312 | } else { | |
2313 | VERIFY(taskq_dispatch(tq, vdev_validate_child, cvd, | |
2314 | TQ_SLEEP) != TASKQID_INVALID); | |
2315 | } | |
2316 | } | |
2317 | if (tq != NULL) { | |
2318 | taskq_wait(tq); | |
2319 | taskq_destroy(tq); | |
2320 | } | |
2321 | for (int c = 0; c < children; c++) { | |
2322 | int error = vd->vdev_child[c]->vdev_validate_error; | |
2323 | ||
2324 | if (error != 0) | |
2e528b49 | 2325 | return (SET_ERROR(EBADF)); |
cf0977ad AS |
2326 | } |
2327 | ||
34dc7c2f BB |
2328 | |
2329 | /* | |
2330 | * If the device has already failed, or was marked offline, don't do | |
2331 | * any further validation. Otherwise, label I/O will fail and we will | |
2332 | * overwrite the previous state. | |
2333 | */ | |
6cb8e530 PZ |
2334 | if (!vd->vdev_ops->vdev_op_leaf || !vdev_readable(vd)) |
2335 | return (0); | |
34dc7c2f | 2336 | |
6cb8e530 PZ |
2337 | /* |
2338 | * If we are performing an extreme rewind, we allow for a label that | |
2339 | * was modified at a point after the current txg. | |
a11c7aae PZ |
2340 | * If config lock is not held do not check for the txg. spa_sync could |
2341 | * be updating the vdev's label before updating spa_last_synced_txg. | |
6cb8e530 | 2342 | */ |
a11c7aae PZ |
2343 | if (spa->spa_extreme_rewind || spa_last_synced_txg(spa) == 0 || |
2344 | spa_config_held(spa, SCL_CONFIG, RW_WRITER) != SCL_CONFIG) | |
6cb8e530 PZ |
2345 | txg = UINT64_MAX; |
2346 | else | |
2347 | txg = spa_last_synced_txg(spa); | |
34dc7c2f | 2348 | |
6cb8e530 | 2349 | if ((label = vdev_label_read_config(vd, txg)) == NULL) { |
dce1bf99 | 2350 | vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN, |
6cb8e530 | 2351 | VDEV_AUX_BAD_LABEL); |
38a19edd PZ |
2352 | vdev_dbgmsg(vd, "vdev_validate: failed reading config for " |
2353 | "txg %llu", (u_longlong_t)txg); | |
6cb8e530 PZ |
2354 | return (0); |
2355 | } | |
428870ff | 2356 | |
6cb8e530 PZ |
2357 | /* |
2358 | * Determine if this vdev has been split off into another | |
2359 | * pool. If so, then refuse to open it. | |
2360 | */ | |
2361 | if (nvlist_lookup_uint64(label, ZPOOL_CONFIG_SPLIT_GUID, | |
2362 | &aux_guid) == 0 && aux_guid == spa_guid(spa)) { | |
2363 | vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN, | |
2364 | VDEV_AUX_SPLIT_POOL); | |
2365 | nvlist_free(label); | |
2366 | vdev_dbgmsg(vd, "vdev_validate: vdev split into other pool"); | |
2367 | return (0); | |
2368 | } | |
34dc7c2f | 2369 | |
6cb8e530 PZ |
2370 | if (nvlist_lookup_uint64(label, ZPOOL_CONFIG_POOL_GUID, &guid) != 0) { |
2371 | vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN, | |
2372 | VDEV_AUX_CORRUPT_DATA); | |
2373 | nvlist_free(label); | |
2374 | vdev_dbgmsg(vd, "vdev_validate: '%s' missing from label", | |
2375 | ZPOOL_CONFIG_POOL_GUID); | |
2376 | return (0); | |
2377 | } | |
428870ff | 2378 | |
6cb8e530 PZ |
2379 | /* |
2380 | * If config is not trusted then ignore the spa guid check. This is | |
2381 | * necessary because if the machine crashed during a re-guid the new | |
2382 | * guid might have been written to all of the vdev labels, but not the | |
2383 | * cached config. The check will be performed again once we have the | |
2384 | * trusted config from the MOS. | |
2385 | */ | |
2386 | if (spa->spa_trust_config && guid != spa_guid(spa)) { | |
2387 | vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN, | |
2388 | VDEV_AUX_CORRUPT_DATA); | |
2389 | nvlist_free(label); | |
2390 | vdev_dbgmsg(vd, "vdev_validate: vdev label pool_guid doesn't " | |
2391 | "match config (%llu != %llu)", (u_longlong_t)guid, | |
2392 | (u_longlong_t)spa_guid(spa)); | |
2393 | return (0); | |
2394 | } | |
2395 | ||
2396 | if (nvlist_lookup_nvlist(label, ZPOOL_CONFIG_VDEV_TREE, &nvl) | |
2397 | != 0 || nvlist_lookup_uint64(nvl, ZPOOL_CONFIG_ORIG_GUID, | |
2398 | &aux_guid) != 0) | |
2399 | aux_guid = 0; | |
2400 | ||
2401 | if (nvlist_lookup_uint64(label, ZPOOL_CONFIG_GUID, &guid) != 0) { | |
2402 | vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN, | |
2403 | VDEV_AUX_CORRUPT_DATA); | |
2404 | nvlist_free(label); | |
2405 | vdev_dbgmsg(vd, "vdev_validate: '%s' missing from label", | |
2406 | ZPOOL_CONFIG_GUID); | |
2407 | return (0); | |
2408 | } | |
2409 | ||
2410 | if (nvlist_lookup_uint64(label, ZPOOL_CONFIG_TOP_GUID, &top_guid) | |
2411 | != 0) { | |
2412 | vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN, | |
2413 | VDEV_AUX_CORRUPT_DATA); | |
2414 | nvlist_free(label); | |
2415 | vdev_dbgmsg(vd, "vdev_validate: '%s' missing from label", | |
2416 | ZPOOL_CONFIG_TOP_GUID); | |
2417 | return (0); | |
2418 | } | |
2419 | ||
2420 | /* | |
2421 | * If this vdev just became a top-level vdev because its sibling was | |
2422 | * detached, it will have adopted the parent's vdev guid -- but the | |
2423 | * label may or may not be on disk yet. Fortunately, either version | |
2424 | * of the label will have the same top guid, so if we're a top-level | |
2425 | * vdev, we can safely compare to that instead. | |
2426 | * However, if the config comes from a cachefile that failed to update | |
2427 | * after the detach, a top-level vdev will appear as a non top-level | |
2428 | * vdev in the config. Also relax the constraints if we perform an | |
2429 | * extreme rewind. | |
2430 | * | |
2431 | * If we split this vdev off instead, then we also check the | |
2432 | * original pool's guid. We don't want to consider the vdev | |
2433 | * corrupt if it is partway through a split operation. | |
2434 | */ | |
2435 | if (vd->vdev_guid != guid && vd->vdev_guid != aux_guid) { | |
2436 | boolean_t mismatch = B_FALSE; | |
2437 | if (spa->spa_trust_config && !spa->spa_extreme_rewind) { | |
2438 | if (vd != vd->vdev_top || vd->vdev_guid != top_guid) | |
2439 | mismatch = B_TRUE; | |
2440 | } else { | |
2441 | if (vd->vdev_guid != top_guid && | |
2442 | vd->vdev_top->vdev_guid != guid) | |
2443 | mismatch = B_TRUE; | |
34dc7c2f BB |
2444 | } |
2445 | ||
6cb8e530 | 2446 | if (mismatch) { |
34dc7c2f BB |
2447 | vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN, |
2448 | VDEV_AUX_CORRUPT_DATA); | |
2449 | nvlist_free(label); | |
6cb8e530 PZ |
2450 | vdev_dbgmsg(vd, "vdev_validate: config guid " |
2451 | "doesn't match label guid"); | |
2452 | vdev_dbgmsg(vd, "CONFIG: guid %llu, top_guid %llu", | |
2453 | (u_longlong_t)vd->vdev_guid, | |
2454 | (u_longlong_t)vd->vdev_top->vdev_guid); | |
2455 | vdev_dbgmsg(vd, "LABEL: guid %llu, top_guid %llu, " | |
2456 | "aux_guid %llu", (u_longlong_t)guid, | |
2457 | (u_longlong_t)top_guid, (u_longlong_t)aux_guid); | |
34dc7c2f BB |
2458 | return (0); |
2459 | } | |
6cb8e530 | 2460 | } |
34dc7c2f | 2461 | |
6cb8e530 PZ |
2462 | if (nvlist_lookup_uint64(label, ZPOOL_CONFIG_POOL_STATE, |
2463 | &state) != 0) { | |
2464 | vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN, | |
2465 | VDEV_AUX_CORRUPT_DATA); | |
34dc7c2f | 2466 | nvlist_free(label); |
6cb8e530 PZ |
2467 | vdev_dbgmsg(vd, "vdev_validate: '%s' missing from label", |
2468 | ZPOOL_CONFIG_POOL_STATE); | |
2469 | return (0); | |
2470 | } | |
34dc7c2f | 2471 | |
6cb8e530 PZ |
2472 | nvlist_free(label); |
2473 | ||
2474 | /* | |
2475 | * If this is a verbatim import, no need to check the | |
2476 | * state of the pool. | |
2477 | */ | |
2478 | if (!(spa->spa_import_flags & ZFS_IMPORT_VERBATIM) && | |
2479 | spa_load_state(spa) == SPA_LOAD_OPEN && | |
2480 | state != POOL_STATE_ACTIVE) { | |
2481 | vdev_dbgmsg(vd, "vdev_validate: invalid pool state (%llu) " | |
2482 | "for spa %s", (u_longlong_t)state, spa->spa_name); | |
2483 | return (SET_ERROR(EBADF)); | |
2484 | } | |
2485 | ||
2486 | /* | |
2487 | * If we were able to open and validate a vdev that was | |
2488 | * previously marked permanently unavailable, clear that state | |
2489 | * now. | |
2490 | */ | |
2491 | if (vd->vdev_not_present) | |
2492 | vd->vdev_not_present = 0; | |
2493 | ||
2494 | return (0); | |
2495 | } | |
2496 | ||
2497 | static void | |
aeb33776 | 2498 | vdev_update_path(const char *prefix, char *svd, char **dvd, uint64_t guid) |
6cb8e530 | 2499 | { |
aeb33776 AH |
2500 | if (svd != NULL && *dvd != NULL) { |
2501 | if (strcmp(svd, *dvd) != 0) { | |
2502 | zfs_dbgmsg("vdev_copy_path: vdev %llu: %s changed " | |
2503 | "from '%s' to '%s'", (u_longlong_t)guid, prefix, | |
2504 | *dvd, svd); | |
2505 | spa_strfree(*dvd); | |
2506 | *dvd = spa_strdup(svd); | |
4a0ee12a | 2507 | } |
aeb33776 AH |
2508 | } else if (svd != NULL) { |
2509 | *dvd = spa_strdup(svd); | |
6cb8e530 | 2510 | zfs_dbgmsg("vdev_copy_path: vdev %llu: path set to '%s'", |
aeb33776 | 2511 | (u_longlong_t)guid, *dvd); |
6cb8e530 | 2512 | } |
aeb33776 AH |
2513 | } |
2514 | ||
2515 | static void | |
2516 | vdev_copy_path_impl(vdev_t *svd, vdev_t *dvd) | |
2517 | { | |
2518 | char *old, *new; | |
2519 | ||
2520 | vdev_update_path("vdev_path", svd->vdev_path, &dvd->vdev_path, | |
2521 | dvd->vdev_guid); | |
2522 | ||
2523 | vdev_update_path("vdev_devid", svd->vdev_devid, &dvd->vdev_devid, | |
2524 | dvd->vdev_guid); | |
2525 | ||
2526 | vdev_update_path("vdev_physpath", svd->vdev_physpath, | |
2527 | &dvd->vdev_physpath, dvd->vdev_guid); | |
2a8430a2 TH |
2528 | |
2529 | /* | |
2530 | * Our enclosure sysfs path may have changed between imports | |
2531 | */ | |
2532 | old = dvd->vdev_enc_sysfs_path; | |
2533 | new = svd->vdev_enc_sysfs_path; | |
2534 | if ((old != NULL && new == NULL) || | |
2535 | (old == NULL && new != NULL) || | |
2536 | ((old != NULL && new != NULL) && strcmp(new, old) != 0)) { | |
2537 | zfs_dbgmsg("vdev_copy_path: vdev %llu: vdev_enc_sysfs_path " | |
2538 | "changed from '%s' to '%s'", (u_longlong_t)dvd->vdev_guid, | |
2539 | old, new); | |
2540 | ||
2541 | if (dvd->vdev_enc_sysfs_path) | |
2542 | spa_strfree(dvd->vdev_enc_sysfs_path); | |
2543 | ||
2544 | if (svd->vdev_enc_sysfs_path) { | |
2545 | dvd->vdev_enc_sysfs_path = spa_strdup( | |
2546 | svd->vdev_enc_sysfs_path); | |
2547 | } else { | |
2548 | dvd->vdev_enc_sysfs_path = NULL; | |
2549 | } | |
2550 | } | |
6cb8e530 | 2551 | } |
34dc7c2f | 2552 | |
6cb8e530 PZ |
2553 | /* |
2554 | * Recursively copy vdev paths from one vdev to another. Source and destination | |
2555 | * vdev trees must have same geometry otherwise return error. Intended to copy | |
2556 | * paths from userland config into MOS config. | |
2557 | */ | |
2558 | int | |
2559 | vdev_copy_path_strict(vdev_t *svd, vdev_t *dvd) | |
2560 | { | |
2561 | if ((svd->vdev_ops == &vdev_missing_ops) || | |
2562 | (svd->vdev_ishole && dvd->vdev_ishole) || | |
2563 | (dvd->vdev_ops == &vdev_indirect_ops)) | |
2564 | return (0); | |
2565 | ||
2566 | if (svd->vdev_ops != dvd->vdev_ops) { | |
2567 | vdev_dbgmsg(svd, "vdev_copy_path: vdev type mismatch: %s != %s", | |
2568 | svd->vdev_ops->vdev_op_type, dvd->vdev_ops->vdev_op_type); | |
2569 | return (SET_ERROR(EINVAL)); | |
2570 | } | |
2571 | ||
2572 | if (svd->vdev_guid != dvd->vdev_guid) { | |
2573 | vdev_dbgmsg(svd, "vdev_copy_path: guids mismatch (%llu != " | |
2574 | "%llu)", (u_longlong_t)svd->vdev_guid, | |
2575 | (u_longlong_t)dvd->vdev_guid); | |
2576 | return (SET_ERROR(EINVAL)); | |
b128c09f | 2577 | } |
34dc7c2f | 2578 | |
6cb8e530 PZ |
2579 | if (svd->vdev_children != dvd->vdev_children) { |
2580 | vdev_dbgmsg(svd, "vdev_copy_path: children count mismatch: " | |
2581 | "%llu != %llu", (u_longlong_t)svd->vdev_children, | |
2582 | (u_longlong_t)dvd->vdev_children); | |
2583 | return (SET_ERROR(EINVAL)); | |
2584 | } | |
2585 | ||
2586 | for (uint64_t i = 0; i < svd->vdev_children; i++) { | |
2587 | int error = vdev_copy_path_strict(svd->vdev_child[i], | |
2588 | dvd->vdev_child[i]); | |
2589 | if (error != 0) | |
2590 | return (error); | |
2591 | } | |
2592 | ||
2593 | if (svd->vdev_ops->vdev_op_leaf) | |
2594 | vdev_copy_path_impl(svd, dvd); | |
2595 | ||
34dc7c2f BB |
2596 | return (0); |
2597 | } | |
2598 | ||
6cb8e530 PZ |
2599 | static void |
2600 | vdev_copy_path_search(vdev_t *stvd, vdev_t *dvd) | |
2601 | { | |
2602 | ASSERT(stvd->vdev_top == stvd); | |
2603 | ASSERT3U(stvd->vdev_id, ==, dvd->vdev_top->vdev_id); | |
2604 | ||
2605 | for (uint64_t i = 0; i < dvd->vdev_children; i++) { | |
2606 | vdev_copy_path_search(stvd, dvd->vdev_child[i]); | |
2607 | } | |
2608 | ||
2609 | if (!dvd->vdev_ops->vdev_op_leaf || !vdev_is_concrete(dvd)) | |
2610 | return; | |
2611 | ||
2612 | /* | |
2613 | * The idea here is that while a vdev can shift positions within | |
2614 | * a top vdev (when replacing, attaching mirror, etc.) it cannot | |
2615 | * step outside of it. | |
2616 | */ | |
2617 | vdev_t *vd = vdev_lookup_by_guid(stvd, dvd->vdev_guid); | |
2618 | ||
2619 | if (vd == NULL || vd->vdev_ops != dvd->vdev_ops) | |
2620 | return; | |
2621 | ||
2622 | ASSERT(vd->vdev_ops->vdev_op_leaf); | |
2623 | ||
2624 | vdev_copy_path_impl(vd, dvd); | |
2625 | } | |
2626 | ||
2627 | /* | |
2628 | * Recursively copy vdev paths from one root vdev to another. Source and | |
2629 | * destination vdev trees may differ in geometry. For each destination leaf | |
2630 | * vdev, search a vdev with the same guid and top vdev id in the source. | |
2631 | * Intended to copy paths from userland config into MOS config. | |
2632 | */ | |
2633 | void | |
2634 | vdev_copy_path_relaxed(vdev_t *srvd, vdev_t *drvd) | |
2635 | { | |
2636 | uint64_t children = MIN(srvd->vdev_children, drvd->vdev_children); | |
2637 | ASSERT(srvd->vdev_ops == &vdev_root_ops); | |
2638 | ASSERT(drvd->vdev_ops == &vdev_root_ops); | |
2639 | ||
2640 | for (uint64_t i = 0; i < children; i++) { | |
2641 | vdev_copy_path_search(srvd->vdev_child[i], | |
2642 | drvd->vdev_child[i]); | |
2643 | } | |
2644 | } | |
2645 | ||
34dc7c2f BB |
2646 | /* |
2647 | * Close a virtual device. | |
2648 | */ | |
2649 | void | |
2650 | vdev_close(vdev_t *vd) | |
2651 | { | |
428870ff | 2652 | vdev_t *pvd = vd->vdev_parent; |
2a8ba608 | 2653 | spa_t *spa __maybe_unused = vd->vdev_spa; |
fb5f0bc8 | 2654 | |
b2255edc BB |
2655 | ASSERT(vd != NULL); |
2656 | ASSERT(vd->vdev_open_thread == curthread || | |
2657 | spa_config_held(spa, SCL_STATE_ALL, RW_WRITER) == SCL_STATE_ALL); | |
fb5f0bc8 | 2658 | |
428870ff BB |
2659 | /* |
2660 | * If our parent is reopening, then we are as well, unless we are | |
2661 | * going offline. | |
2662 | */ | |
2663 | if (pvd != NULL && pvd->vdev_reopening) | |
2664 | vd->vdev_reopening = (pvd->vdev_reopening && !vd->vdev_offline); | |
2665 | ||
34dc7c2f BB |
2666 | vd->vdev_ops->vdev_op_close(vd); |
2667 | ||
34dc7c2f | 2668 | /* |
9babb374 | 2669 | * We record the previous state before we close it, so that if we are |
34dc7c2f BB |
2670 | * doing a reopen(), we don't generate FMA ereports if we notice that |
2671 | * it's still faulted. | |
2672 | */ | |
2673 | vd->vdev_prevstate = vd->vdev_state; | |
2674 | ||
2675 | if (vd->vdev_offline) | |
2676 | vd->vdev_state = VDEV_STATE_OFFLINE; | |
2677 | else | |
2678 | vd->vdev_state = VDEV_STATE_CLOSED; | |
2679 | vd->vdev_stat.vs_aux = VDEV_AUX_NONE; | |
2680 | } | |
2681 | ||
428870ff BB |
2682 | void |
2683 | vdev_hold(vdev_t *vd) | |
2684 | { | |
2685 | spa_t *spa = vd->vdev_spa; | |
2686 | ||
2687 | ASSERT(spa_is_root(spa)); | |
2688 | if (spa->spa_state == POOL_STATE_UNINITIALIZED) | |
2689 | return; | |
2690 | ||
1c27024e | 2691 | for (int c = 0; c < vd->vdev_children; c++) |
428870ff BB |
2692 | vdev_hold(vd->vdev_child[c]); |
2693 | ||
11f2e9a4 | 2694 | if (vd->vdev_ops->vdev_op_leaf && vd->vdev_ops->vdev_op_hold != NULL) |
428870ff BB |
2695 | vd->vdev_ops->vdev_op_hold(vd); |
2696 | } | |
2697 | ||
2698 | void | |
2699 | vdev_rele(vdev_t *vd) | |
2700 | { | |
d6320ddb | 2701 | ASSERT(spa_is_root(vd->vdev_spa)); |
1c27024e | 2702 | for (int c = 0; c < vd->vdev_children; c++) |
428870ff BB |
2703 | vdev_rele(vd->vdev_child[c]); |
2704 | ||
11f2e9a4 | 2705 | if (vd->vdev_ops->vdev_op_leaf && vd->vdev_ops->vdev_op_rele != NULL) |
428870ff BB |
2706 | vd->vdev_ops->vdev_op_rele(vd); |
2707 | } | |
2708 | ||
2709 | /* | |
2710 | * Reopen all interior vdevs and any unopened leaves. We don't actually | |
2711 | * reopen leaf vdevs which had previously been opened as they might deadlock | |
2712 | * on the spa_config_lock. Instead we only obtain the leaf's physical size. | |
2713 | * If the leaf has never been opened then open it, as usual. | |
2714 | */ | |
34dc7c2f BB |
2715 | void |
2716 | vdev_reopen(vdev_t *vd) | |
2717 | { | |
2718 | spa_t *spa = vd->vdev_spa; | |
2719 | ||
b128c09f | 2720 | ASSERT(spa_config_held(spa, SCL_STATE_ALL, RW_WRITER) == SCL_STATE_ALL); |
34dc7c2f | 2721 | |
428870ff BB |
2722 | /* set the reopening flag unless we're taking the vdev offline */ |
2723 | vd->vdev_reopening = !vd->vdev_offline; | |
34dc7c2f BB |
2724 | vdev_close(vd); |
2725 | (void) vdev_open(vd); | |
2726 | ||
2727 | /* | |
2728 | * Call vdev_validate() here to make sure we have the same device. | |
2729 | * Otherwise, a device with an invalid label could be successfully | |
2730 | * opened in response to vdev_reopen(). | |
2731 | */ | |
b128c09f BB |
2732 | if (vd->vdev_aux) { |
2733 | (void) vdev_validate_aux(vd); | |
2734 | if (vdev_readable(vd) && vdev_writeable(vd) && | |
77f6826b GA |
2735 | vd->vdev_aux == &spa->spa_l2cache) { |
2736 | /* | |
77f6826b GA |
2737 | * In case the vdev is present we should evict all ARC |
2738 | * buffers and pointers to log blocks and reclaim their | |
2739 | * space before restoring its contents to L2ARC. | |
2740 | */ | |
2741 | if (l2arc_vdev_present(vd)) { | |
2742 | l2arc_rebuild_vdev(vd, B_TRUE); | |
2743 | } else { | |
2744 | l2arc_add_vdev(spa, vd); | |
2745 | } | |
2746 | spa_async_request(spa, SPA_ASYNC_L2CACHE_REBUILD); | |
b7654bd7 | 2747 | spa_async_request(spa, SPA_ASYNC_L2CACHE_TRIM); |
77f6826b | 2748 | } |
b128c09f | 2749 | } else { |
6cb8e530 | 2750 | (void) vdev_validate(vd); |
b128c09f | 2751 | } |
34dc7c2f | 2752 | |
9d618615 A |
2753 | /* |
2754 | * Recheck if resilver is still needed and cancel any | |
2755 | * scheduled resilver if resilver is unneeded. | |
2756 | */ | |
2757 | if (!vdev_resilver_needed(spa->spa_root_vdev, NULL, NULL) && | |
2758 | spa->spa_async_tasks & SPA_ASYNC_RESILVER) { | |
2759 | mutex_enter(&spa->spa_async_lock); | |
2760 | spa->spa_async_tasks &= ~SPA_ASYNC_RESILVER; | |
2761 | mutex_exit(&spa->spa_async_lock); | |
2762 | } | |
2763 | ||
34dc7c2f BB |
2764 | /* |
2765 | * Reassess parent vdev's health. | |
2766 | */ | |
2767 | vdev_propagate_state(vd); | |
2768 | } | |
2769 | ||
2770 | int | |
2771 | vdev_create(vdev_t *vd, uint64_t txg, boolean_t isreplacing) | |
2772 | { | |
2773 | int error; | |
2774 | ||
2775 | /* | |
2776 | * Normally, partial opens (e.g. of a mirror) are allowed. | |
2777 | * For a create, however, we want to fail the request if | |
2778 | * there are any components we can't open. | |
2779 | */ | |
2780 | error = vdev_open(vd); | |
2781 | ||
2782 | if (error || vd->vdev_state != VDEV_STATE_HEALTHY) { | |
2783 | vdev_close(vd); | |
28caa74b | 2784 | return (error ? error : SET_ERROR(ENXIO)); |
34dc7c2f BB |
2785 | } |
2786 | ||
2787 | /* | |
93cf2076 | 2788 | * Recursively load DTLs and initialize all labels. |
34dc7c2f | 2789 | */ |
93cf2076 GW |
2790 | if ((error = vdev_dtl_load(vd)) != 0 || |
2791 | (error = vdev_label_init(vd, txg, isreplacing ? | |
34dc7c2f BB |
2792 | VDEV_LABEL_REPLACE : VDEV_LABEL_CREATE)) != 0) { |
2793 | vdev_close(vd); | |
2794 | return (error); | |
2795 | } | |
2796 | ||
2797 | return (0); | |
2798 | } | |
2799 | ||
34dc7c2f | 2800 | void |
9babb374 | 2801 | vdev_metaslab_set_size(vdev_t *vd) |
34dc7c2f | 2802 | { |
d2734cce | 2803 | uint64_t asize = vd->vdev_asize; |
c853f382 | 2804 | uint64_t ms_count = asize >> zfs_vdev_default_ms_shift; |
e4e94ca3 | 2805 | uint64_t ms_shift; |
d2734cce | 2806 | |
34dc7c2f | 2807 | /* |
e4e94ca3 DB |
2808 | * There are two dimensions to the metaslab sizing calculation: |
2809 | * the size of the metaslab and the count of metaslabs per vdev. | |
e4e94ca3 | 2810 | * |
c853f382 SD |
2811 | * The default values used below are a good balance between memory |
2812 | * usage (larger metaslab size means more memory needed for loaded | |
2813 | * metaslabs; more metaslabs means more memory needed for the | |
2814 | * metaslab_t structs), metaslab load time (larger metaslabs take | |
2815 | * longer to load), and metaslab sync time (more metaslabs means | |
2816 | * more time spent syncing all of them). | |
2817 | * | |
2818 | * In general, we aim for zfs_vdev_default_ms_count (200) metaslabs. | |
2819 | * The range of the dimensions are as follows: | |
2820 | * | |
2821 | * 2^29 <= ms_size <= 2^34 | |
e4e94ca3 DB |
2822 | * 16 <= ms_count <= 131,072 |
2823 | * | |
2824 | * On the lower end of vdev sizes, we aim for metaslabs sizes of | |
2825 | * at least 512MB (2^29) to minimize fragmentation effects when | |
2826 | * testing with smaller devices. However, the count constraint | |
2827 | * of at least 16 metaslabs will override this minimum size goal. | |
2828 | * | |
2829 | * On the upper end of vdev sizes, we aim for a maximum metaslab | |
c853f382 SD |
2830 | * size of 16GB. However, we will cap the total count to 2^17 |
2831 | * metaslabs to keep our memory footprint in check and let the | |
2832 | * metaslab size grow from there if that limit is hit. | |
e4e94ca3 DB |
2833 | * |
2834 | * The net effect of applying above constrains is summarized below. | |
2835 | * | |
c853f382 SD |
2836 | * vdev size metaslab count |
2837 | * --------------|----------------- | |
2838 | * < 8GB ~16 | |
2839 | * 8GB - 100GB one per 512MB | |
2840 | * 100GB - 3TB ~200 | |
2841 | * 3TB - 2PB one per 16GB | |
2842 | * > 2PB ~131,072 | |
2843 | * -------------------------------- | |
2844 | * | |
2845 | * Finally, note that all of the above calculate the initial | |
2846 | * number of metaslabs. Expanding a top-level vdev will result | |
2847 | * in additional metaslabs being allocated making it possible | |
2848 | * to exceed the zfs_vdev_ms_count_limit. | |
34dc7c2f | 2849 | */ |
d2734cce | 2850 | |
c853f382 SD |
2851 | if (ms_count < zfs_vdev_min_ms_count) |
2852 | ms_shift = highbit64(asize / zfs_vdev_min_ms_count); | |
2853 | else if (ms_count > zfs_vdev_default_ms_count) | |
2854 | ms_shift = highbit64(asize / zfs_vdev_default_ms_count); | |
e4e94ca3 | 2855 | else |
c853f382 | 2856 | ms_shift = zfs_vdev_default_ms_shift; |
e4e94ca3 DB |
2857 | |
2858 | if (ms_shift < SPA_MAXBLOCKSHIFT) { | |
2859 | ms_shift = SPA_MAXBLOCKSHIFT; | |
c853f382 SD |
2860 | } else if (ms_shift > zfs_vdev_max_ms_shift) { |
2861 | ms_shift = zfs_vdev_max_ms_shift; | |
e4e94ca3 | 2862 | /* cap the total count to constrain memory footprint */ |
c853f382 SD |
2863 | if ((asize >> ms_shift) > zfs_vdev_ms_count_limit) |
2864 | ms_shift = highbit64(asize / zfs_vdev_ms_count_limit); | |
d2734cce SD |
2865 | } |
2866 | ||
2867 | vd->vdev_ms_shift = ms_shift; | |
2868 | ASSERT3U(vd->vdev_ms_shift, >=, SPA_MAXBLOCKSHIFT); | |
34dc7c2f BB |
2869 | } |
2870 | ||
2871 | void | |
2872 | vdev_dirty(vdev_t *vd, int flags, void *arg, uint64_t txg) | |
2873 | { | |
2874 | ASSERT(vd == vd->vdev_top); | |
a1d477c2 MA |
2875 | /* indirect vdevs don't have metaslabs or dtls */ |
2876 | ASSERT(vdev_is_concrete(vd) || flags == 0); | |
34dc7c2f | 2877 | ASSERT(ISP2(flags)); |
572e2857 | 2878 | ASSERT(spa_writeable(vd->vdev_spa)); |
34dc7c2f BB |
2879 | |
2880 | if (flags & VDD_METASLAB) | |
2881 | (void) txg_list_add(&vd->vdev_ms_list, arg, txg); | |
2882 | ||
2883 | if (flags & VDD_DTL) | |
2884 | (void) txg_list_add(&vd->vdev_dtl_list, arg, txg); | |
2885 | ||
2886 | (void) txg_list_add(&vd->vdev_spa->spa_vdev_txg_list, vd, txg); | |
2887 | } | |
2888 | ||
93cf2076 GW |
2889 | void |
2890 | vdev_dirty_leaves(vdev_t *vd, int flags, uint64_t txg) | |
2891 | { | |
1c27024e | 2892 | for (int c = 0; c < vd->vdev_children; c++) |
93cf2076 GW |
2893 | vdev_dirty_leaves(vd->vdev_child[c], flags, txg); |
2894 | ||
2895 | if (vd->vdev_ops->vdev_op_leaf) | |
2896 | vdev_dirty(vd->vdev_top, flags, vd, txg); | |
2897 | } | |
2898 | ||
fb5f0bc8 BB |
2899 | /* |
2900 | * DTLs. | |
2901 | * | |
2902 | * A vdev's DTL (dirty time log) is the set of transaction groups for which | |
428870ff | 2903 | * the vdev has less than perfect replication. There are four kinds of DTL: |
fb5f0bc8 BB |
2904 | * |
2905 | * DTL_MISSING: txgs for which the vdev has no valid copies of the data | |
2906 | * | |
2907 | * DTL_PARTIAL: txgs for which data is available, but not fully replicated | |
2908 | * | |
2909 | * DTL_SCRUB: the txgs that could not be repaired by the last scrub; upon | |
2910 | * scrub completion, DTL_SCRUB replaces DTL_MISSING in the range of | |
2911 | * txgs that was scrubbed. | |
2912 | * | |
2913 | * DTL_OUTAGE: txgs which cannot currently be read, whether due to | |
2914 | * persistent errors or just some device being offline. | |
2915 | * Unlike the other three, the DTL_OUTAGE map is not generally | |
2916 | * maintained; it's only computed when needed, typically to | |
2917 | * determine whether a device can be detached. | |
2918 | * | |
2919 | * For leaf vdevs, DTL_MISSING and DTL_PARTIAL are identical: the device | |
2920 | * either has the data or it doesn't. | |
2921 | * | |
2922 | * For interior vdevs such as mirror and RAID-Z the picture is more complex. | |
2923 | * A vdev's DTL_PARTIAL is the union of its children's DTL_PARTIALs, because | |
2924 | * if any child is less than fully replicated, then so is its parent. | |
2925 | * A vdev's DTL_MISSING is a modified union of its children's DTL_MISSINGs, | |
2926 | * comprising only those txgs which appear in 'maxfaults' or more children; | |
2927 | * those are the txgs we don't have enough replication to read. For example, | |
2928 | * double-parity RAID-Z can tolerate up to two missing devices (maxfaults == 2); | |
2929 | * thus, its DTL_MISSING consists of the set of txgs that appear in more than | |
2930 | * two child DTL_MISSING maps. | |
2931 | * | |
2932 | * It should be clear from the above that to compute the DTLs and outage maps | |
2933 | * for all vdevs, it suffices to know just the leaf vdevs' DTL_MISSING maps. | |
2934 | * Therefore, that is all we keep on disk. When loading the pool, or after | |
2935 | * a configuration change, we generate all other DTLs from first principles. | |
2936 | */ | |
34dc7c2f | 2937 | void |
fb5f0bc8 | 2938 | vdev_dtl_dirty(vdev_t *vd, vdev_dtl_type_t t, uint64_t txg, uint64_t size) |
34dc7c2f | 2939 | { |
93cf2076 | 2940 | range_tree_t *rt = vd->vdev_dtl[t]; |
fb5f0bc8 BB |
2941 | |
2942 | ASSERT(t < DTL_TYPES); | |
2943 | ASSERT(vd != vd->vdev_spa->spa_root_vdev); | |
572e2857 | 2944 | ASSERT(spa_writeable(vd->vdev_spa)); |
fb5f0bc8 | 2945 | |
a1d477c2 | 2946 | mutex_enter(&vd->vdev_dtl_lock); |
93cf2076 GW |
2947 | if (!range_tree_contains(rt, txg, size)) |
2948 | range_tree_add(rt, txg, size); | |
a1d477c2 | 2949 | mutex_exit(&vd->vdev_dtl_lock); |
34dc7c2f BB |
2950 | } |
2951 | ||
fb5f0bc8 BB |
2952 | boolean_t |
2953 | vdev_dtl_contains(vdev_t *vd, vdev_dtl_type_t t, uint64_t txg, uint64_t size) | |
34dc7c2f | 2954 | { |
93cf2076 | 2955 | range_tree_t *rt = vd->vdev_dtl[t]; |
fb5f0bc8 | 2956 | boolean_t dirty = B_FALSE; |
34dc7c2f | 2957 | |
fb5f0bc8 BB |
2958 | ASSERT(t < DTL_TYPES); |
2959 | ASSERT(vd != vd->vdev_spa->spa_root_vdev); | |
34dc7c2f | 2960 | |
a1d477c2 MA |
2961 | /* |
2962 | * While we are loading the pool, the DTLs have not been loaded yet. | |
4d0ba941 BB |
2963 | * This isn't a problem but it can result in devices being tried |
2964 | * which are known to not have the data. In which case, the import | |
2965 | * is relying on the checksum to ensure that we get the right data. | |
2966 | * Note that while importing we are only reading the MOS, which is | |
2967 | * always checksummed. | |
a1d477c2 | 2968 | */ |
a1d477c2 | 2969 | mutex_enter(&vd->vdev_dtl_lock); |
d2734cce | 2970 | if (!range_tree_is_empty(rt)) |
93cf2076 | 2971 | dirty = range_tree_contains(rt, txg, size); |
a1d477c2 | 2972 | mutex_exit(&vd->vdev_dtl_lock); |
34dc7c2f BB |
2973 | |
2974 | return (dirty); | |
2975 | } | |
2976 | ||
fb5f0bc8 BB |
2977 | boolean_t |
2978 | vdev_dtl_empty(vdev_t *vd, vdev_dtl_type_t t) | |
2979 | { | |
93cf2076 | 2980 | range_tree_t *rt = vd->vdev_dtl[t]; |
fb5f0bc8 BB |
2981 | boolean_t empty; |
2982 | ||
a1d477c2 | 2983 | mutex_enter(&vd->vdev_dtl_lock); |
d2734cce | 2984 | empty = range_tree_is_empty(rt); |
a1d477c2 | 2985 | mutex_exit(&vd->vdev_dtl_lock); |
fb5f0bc8 BB |
2986 | |
2987 | return (empty); | |
2988 | } | |
2989 | ||
3d6da72d | 2990 | /* |
b2255edc BB |
2991 | * Check if the txg falls within the range which must be |
2992 | * resilvered. DVAs outside this range can always be skipped. | |
2993 | */ | |
2994 | boolean_t | |
2995 | vdev_default_need_resilver(vdev_t *vd, const dva_t *dva, size_t psize, | |
2996 | uint64_t phys_birth) | |
2997 | { | |
14e4e3cb AZ |
2998 | (void) dva, (void) psize; |
2999 | ||
b2255edc BB |
3000 | /* Set by sequential resilver. */ |
3001 | if (phys_birth == TXG_UNKNOWN) | |
3002 | return (B_TRUE); | |
3003 | ||
3004 | return (vdev_dtl_contains(vd, DTL_PARTIAL, phys_birth, 1)); | |
3005 | } | |
3006 | ||
3007 | /* | |
3008 | * Returns B_TRUE if the vdev determines the DVA needs to be resilvered. | |
3d6da72d IH |
3009 | */ |
3010 | boolean_t | |
b2255edc BB |
3011 | vdev_dtl_need_resilver(vdev_t *vd, const dva_t *dva, size_t psize, |
3012 | uint64_t phys_birth) | |
3d6da72d IH |
3013 | { |
3014 | ASSERT(vd != vd->vdev_spa->spa_root_vdev); | |
3015 | ||
3016 | if (vd->vdev_ops->vdev_op_need_resilver == NULL || | |
3017 | vd->vdev_ops->vdev_op_leaf) | |
3018 | return (B_TRUE); | |
3019 | ||
b2255edc BB |
3020 | return (vd->vdev_ops->vdev_op_need_resilver(vd, dva, psize, |
3021 | phys_birth)); | |
3d6da72d IH |
3022 | } |
3023 | ||
5d1f7fb6 GW |
3024 | /* |
3025 | * Returns the lowest txg in the DTL range. | |
3026 | */ | |
3027 | static uint64_t | |
3028 | vdev_dtl_min(vdev_t *vd) | |
3029 | { | |
5d1f7fb6 | 3030 | ASSERT(MUTEX_HELD(&vd->vdev_dtl_lock)); |
93cf2076 | 3031 | ASSERT3U(range_tree_space(vd->vdev_dtl[DTL_MISSING]), !=, 0); |
5d1f7fb6 GW |
3032 | ASSERT0(vd->vdev_children); |
3033 | ||
ca577779 | 3034 | return (range_tree_min(vd->vdev_dtl[DTL_MISSING]) - 1); |
5d1f7fb6 GW |
3035 | } |
3036 | ||
3037 | /* | |
3038 | * Returns the highest txg in the DTL. | |
3039 | */ | |
3040 | static uint64_t | |
3041 | vdev_dtl_max(vdev_t *vd) | |
3042 | { | |
5d1f7fb6 | 3043 | ASSERT(MUTEX_HELD(&vd->vdev_dtl_lock)); |
93cf2076 | 3044 | ASSERT3U(range_tree_space(vd->vdev_dtl[DTL_MISSING]), !=, 0); |
5d1f7fb6 GW |
3045 | ASSERT0(vd->vdev_children); |
3046 | ||
ca577779 | 3047 | return (range_tree_max(vd->vdev_dtl[DTL_MISSING])); |
5d1f7fb6 GW |
3048 | } |
3049 | ||
3050 | /* | |
3051 | * Determine if a resilvering vdev should remove any DTL entries from | |
3052 | * its range. If the vdev was resilvering for the entire duration of the | |
3053 | * scan then it should excise that range from its DTLs. Otherwise, this | |
3054 | * vdev is considered partially resilvered and should leave its DTL | |
3055 | * entries intact. The comment in vdev_dtl_reassess() describes how we | |
3056 | * excise the DTLs. | |
3057 | */ | |
3058 | static boolean_t | |
9a49d3f3 | 3059 | vdev_dtl_should_excise(vdev_t *vd, boolean_t rebuild_done) |
5d1f7fb6 | 3060 | { |
5d1f7fb6 GW |
3061 | ASSERT0(vd->vdev_children); |
3062 | ||
335b251a MA |
3063 | if (vd->vdev_state < VDEV_STATE_DEGRADED) |
3064 | return (B_FALSE); | |
3065 | ||
80a91e74 TC |
3066 | if (vd->vdev_resilver_deferred) |
3067 | return (B_FALSE); | |
3068 | ||
9a49d3f3 | 3069 | if (range_tree_is_empty(vd->vdev_dtl[DTL_MISSING])) |
5d1f7fb6 GW |
3070 | return (B_TRUE); |
3071 | ||
9a49d3f3 BB |
3072 | if (rebuild_done) { |
3073 | vdev_rebuild_t *vr = &vd->vdev_top->vdev_rebuild_config; | |
3074 | vdev_rebuild_phys_t *vrp = &vr->vr_rebuild_phys; | |
3075 | ||
3076 | /* Rebuild not initiated by attach */ | |
3077 | if (vd->vdev_rebuild_txg == 0) | |
3078 | return (B_TRUE); | |
3079 | ||
3080 | /* | |
3081 | * When a rebuild completes without error then all missing data | |
3082 | * up to the rebuild max txg has been reconstructed and the DTL | |
3083 | * is eligible for excision. | |
3084 | */ | |
3085 | if (vrp->vrp_rebuild_state == VDEV_REBUILD_COMPLETE && | |
3086 | vdev_dtl_max(vd) <= vrp->vrp_max_txg) { | |
3087 | ASSERT3U(vrp->vrp_min_txg, <=, vdev_dtl_min(vd)); | |
3088 | ASSERT3U(vrp->vrp_min_txg, <, vd->vdev_rebuild_txg); | |
3089 | ASSERT3U(vd->vdev_rebuild_txg, <=, vrp->vrp_max_txg); | |
3090 | return (B_TRUE); | |
3091 | } | |
3092 | } else { | |
3093 | dsl_scan_t *scn = vd->vdev_spa->spa_dsl_pool->dp_scan; | |
3094 | dsl_scan_phys_t *scnp __maybe_unused = &scn->scn_phys; | |
3095 | ||
3096 | /* Resilver not initiated by attach */ | |
3097 | if (vd->vdev_resilver_txg == 0) | |
3098 | return (B_TRUE); | |
3099 | ||
3100 | /* | |
3101 | * When a resilver is initiated the scan will assign the | |
3102 | * scn_max_txg value to the highest txg value that exists | |
3103 | * in all DTLs. If this device's max DTL is not part of this | |
3104 | * scan (i.e. it is not in the range (scn_min_txg, scn_max_txg] | |
3105 | * then it is not eligible for excision. | |
3106 | */ | |
3107 | if (vdev_dtl_max(vd) <= scn->scn_phys.scn_max_txg) { | |
3108 | ASSERT3U(scnp->scn_min_txg, <=, vdev_dtl_min(vd)); | |
3109 | ASSERT3U(scnp->scn_min_txg, <, vd->vdev_resilver_txg); | |
3110 | ASSERT3U(vd->vdev_resilver_txg, <=, scnp->scn_max_txg); | |
3111 | return (B_TRUE); | |
3112 | } | |
5d1f7fb6 | 3113 | } |
9a49d3f3 | 3114 | |
5d1f7fb6 GW |
3115 | return (B_FALSE); |
3116 | } | |
3117 | ||
34dc7c2f | 3118 | /* |
fde25c0a TC |
3119 | * Reassess DTLs after a config change or scrub completion. If txg == 0 no |
3120 | * write operations will be issued to the pool. | |
34dc7c2f BB |
3121 | */ |
3122 | void | |
9a49d3f3 BB |
3123 | vdev_dtl_reassess(vdev_t *vd, uint64_t txg, uint64_t scrub_txg, |
3124 | boolean_t scrub_done, boolean_t rebuild_done) | |
34dc7c2f BB |
3125 | { |
3126 | spa_t *spa = vd->vdev_spa; | |
fb5f0bc8 | 3127 | avl_tree_t reftree; |
1c27024e | 3128 | int minref; |
34dc7c2f | 3129 | |
fb5f0bc8 | 3130 | ASSERT(spa_config_held(spa, SCL_ALL, RW_READER) != 0); |
34dc7c2f | 3131 | |
1c27024e | 3132 | for (int c = 0; c < vd->vdev_children; c++) |
fb5f0bc8 | 3133 | vdev_dtl_reassess(vd->vdev_child[c], txg, |
9a49d3f3 | 3134 | scrub_txg, scrub_done, rebuild_done); |
fb5f0bc8 | 3135 | |
a1d477c2 | 3136 | if (vd == spa->spa_root_vdev || !vdev_is_concrete(vd) || vd->vdev_aux) |
fb5f0bc8 BB |
3137 | return; |
3138 | ||
3139 | if (vd->vdev_ops->vdev_op_leaf) { | |
428870ff | 3140 | dsl_scan_t *scn = spa->spa_dsl_pool->dp_scan; |
9a49d3f3 BB |
3141 | vdev_rebuild_t *vr = &vd->vdev_top->vdev_rebuild_config; |
3142 | boolean_t check_excise = B_FALSE; | |
41035a04 | 3143 | boolean_t wasempty = B_TRUE; |
428870ff | 3144 | |
34dc7c2f | 3145 | mutex_enter(&vd->vdev_dtl_lock); |
5d1f7fb6 | 3146 | |
02638a30 | 3147 | /* |
9a49d3f3 | 3148 | * If requested, pretend the scan or rebuild completed cleanly. |
02638a30 | 3149 | */ |
9a49d3f3 BB |
3150 | if (zfs_scan_ignore_errors) { |
3151 | if (scn != NULL) | |
3152 | scn->scn_phys.scn_errors = 0; | |
3153 | if (vr != NULL) | |
3154 | vr->vr_rebuild_phys.vrp_errors = 0; | |
3155 | } | |
02638a30 | 3156 | |
41035a04 JP |
3157 | if (scrub_txg != 0 && |
3158 | !range_tree_is_empty(vd->vdev_dtl[DTL_MISSING])) { | |
3159 | wasempty = B_FALSE; | |
3160 | zfs_dbgmsg("guid:%llu txg:%llu scrub:%llu started:%d " | |
3161 | "dtl:%llu/%llu errors:%llu", | |
3162 | (u_longlong_t)vd->vdev_guid, (u_longlong_t)txg, | |
3163 | (u_longlong_t)scrub_txg, spa->spa_scrub_started, | |
3164 | (u_longlong_t)vdev_dtl_min(vd), | |
3165 | (u_longlong_t)vdev_dtl_max(vd), | |
3166 | (u_longlong_t)(scn ? scn->scn_phys.scn_errors : 0)); | |
3167 | } | |
3168 | ||
5d1f7fb6 | 3169 | /* |
9a49d3f3 BB |
3170 | * If we've completed a scrub/resilver or a rebuild cleanly |
3171 | * then determine if this vdev should remove any DTLs. We | |
3172 | * only want to excise regions on vdevs that were available | |
3173 | * during the entire duration of this scan. | |
5d1f7fb6 | 3174 | */ |
9a49d3f3 BB |
3175 | if (rebuild_done && |
3176 | vr != NULL && vr->vr_rebuild_phys.vrp_errors == 0) { | |
3177 | check_excise = B_TRUE; | |
3178 | } else { | |
3179 | if (spa->spa_scrub_started || | |
3180 | (scn != NULL && scn->scn_phys.scn_errors == 0)) { | |
3181 | check_excise = B_TRUE; | |
3182 | } | |
3183 | } | |
3184 | ||
3185 | if (scrub_txg && check_excise && | |
3186 | vdev_dtl_should_excise(vd, rebuild_done)) { | |
b128c09f | 3187 | /* |
9a49d3f3 BB |
3188 | * We completed a scrub, resilver or rebuild up to |
3189 | * scrub_txg. If we did it without rebooting, then | |
3190 | * the scrub dtl will be valid, so excise the old | |
3191 | * region and fold in the scrub dtl. Otherwise, | |
3192 | * leave the dtl as-is if there was an error. | |
fb5f0bc8 BB |
3193 | * |
3194 | * There's little trick here: to excise the beginning | |
3195 | * of the DTL_MISSING map, we put it into a reference | |
3196 | * tree and then add a segment with refcnt -1 that | |
3197 | * covers the range [0, scrub_txg). This means | |
3198 | * that each txg in that range has refcnt -1 or 0. | |
3199 | * We then add DTL_SCRUB with a refcnt of 2, so that | |
3200 | * entries in the range [0, scrub_txg) will have a | |
3201 | * positive refcnt -- either 1 or 2. We then convert | |
3202 | * the reference tree into the new DTL_MISSING map. | |
b128c09f | 3203 | */ |
93cf2076 GW |
3204 | space_reftree_create(&reftree); |
3205 | space_reftree_add_map(&reftree, | |
3206 | vd->vdev_dtl[DTL_MISSING], 1); | |
3207 | space_reftree_add_seg(&reftree, 0, scrub_txg, -1); | |
3208 | space_reftree_add_map(&reftree, | |
3209 | vd->vdev_dtl[DTL_SCRUB], 2); | |
3210 | space_reftree_generate_map(&reftree, | |
3211 | vd->vdev_dtl[DTL_MISSING], 1); | |
3212 | space_reftree_destroy(&reftree); | |
41035a04 JP |
3213 | |
3214 | if (!range_tree_is_empty(vd->vdev_dtl[DTL_MISSING])) { | |
3215 | zfs_dbgmsg("update DTL_MISSING:%llu/%llu", | |
3216 | (u_longlong_t)vdev_dtl_min(vd), | |
3217 | (u_longlong_t)vdev_dtl_max(vd)); | |
3218 | } else if (!wasempty) { | |
3219 | zfs_dbgmsg("DTL_MISSING is now empty"); | |
3220 | } | |
34dc7c2f | 3221 | } |
93cf2076 GW |
3222 | range_tree_vacate(vd->vdev_dtl[DTL_PARTIAL], NULL, NULL); |
3223 | range_tree_walk(vd->vdev_dtl[DTL_MISSING], | |
3224 | range_tree_add, vd->vdev_dtl[DTL_PARTIAL]); | |
34dc7c2f | 3225 | if (scrub_done) |
93cf2076 GW |
3226 | range_tree_vacate(vd->vdev_dtl[DTL_SCRUB], NULL, NULL); |
3227 | range_tree_vacate(vd->vdev_dtl[DTL_OUTAGE], NULL, NULL); | |
fb5f0bc8 | 3228 | if (!vdev_readable(vd)) |
93cf2076 | 3229 | range_tree_add(vd->vdev_dtl[DTL_OUTAGE], 0, -1ULL); |
fb5f0bc8 | 3230 | else |
93cf2076 GW |
3231 | range_tree_walk(vd->vdev_dtl[DTL_MISSING], |
3232 | range_tree_add, vd->vdev_dtl[DTL_OUTAGE]); | |
5d1f7fb6 GW |
3233 | |
3234 | /* | |
9a49d3f3 BB |
3235 | * If the vdev was resilvering or rebuilding and no longer |
3236 | * has any DTLs then reset the appropriate flag and dirty | |
d14fa5db | 3237 | * the top level so that we persist the change. |
5d1f7fb6 | 3238 | */ |
9a49d3f3 | 3239 | if (txg != 0 && |
d2734cce SD |
3240 | range_tree_is_empty(vd->vdev_dtl[DTL_MISSING]) && |
3241 | range_tree_is_empty(vd->vdev_dtl[DTL_OUTAGE])) { | |
9a49d3f3 BB |
3242 | if (vd->vdev_rebuild_txg != 0) { |
3243 | vd->vdev_rebuild_txg = 0; | |
3244 | vdev_config_dirty(vd->vdev_top); | |
3245 | } else if (vd->vdev_resilver_txg != 0) { | |
3246 | vd->vdev_resilver_txg = 0; | |
3247 | vdev_config_dirty(vd->vdev_top); | |
3248 | } | |
d14fa5db | 3249 | } |
5d1f7fb6 | 3250 | |
34dc7c2f | 3251 | mutex_exit(&vd->vdev_dtl_lock); |
b128c09f | 3252 | |
34dc7c2f BB |
3253 | if (txg != 0) |
3254 | vdev_dirty(vd->vdev_top, VDD_DTL, vd, txg); | |
5caeef02 DB |
3255 | } else { |
3256 | mutex_enter(&vd->vdev_dtl_lock); | |
3257 | for (int t = 0; t < DTL_TYPES; t++) { | |
3258 | /* account for child's outage in parent's missing map */ | |
3259 | int s = (t == DTL_MISSING) ? DTL_OUTAGE: t; | |
3260 | if (t == DTL_SCRUB) { | |
3261 | /* leaf vdevs only */ | |
3262 | continue; | |
3263 | } | |
3264 | if (t == DTL_PARTIAL) { | |
3265 | /* i.e. non-zero */ | |
3266 | minref = 1; | |
3267 | } else if (vdev_get_nparity(vd) != 0) { | |
3268 | /* RAIDZ, DRAID */ | |
3269 | minref = vdev_get_nparity(vd) + 1; | |
3270 | } else { | |
3271 | /* any kind of mirror */ | |
3272 | minref = vd->vdev_children; | |
3273 | } | |
3274 | space_reftree_create(&reftree); | |
3275 | for (int c = 0; c < vd->vdev_children; c++) { | |
3276 | vdev_t *cvd = vd->vdev_child[c]; | |
3277 | mutex_enter(&cvd->vdev_dtl_lock); | |
3278 | space_reftree_add_map(&reftree, | |
3279 | cvd->vdev_dtl[s], 1); | |
3280 | mutex_exit(&cvd->vdev_dtl_lock); | |
3281 | } | |
3282 | space_reftree_generate_map(&reftree, | |
3283 | vd->vdev_dtl[t], minref); | |
3284 | space_reftree_destroy(&reftree); | |
3285 | } | |
3286 | mutex_exit(&vd->vdev_dtl_lock); | |
34dc7c2f BB |
3287 | } |
3288 | ||
5caeef02 DB |
3289 | if (vd->vdev_top->vdev_ops == &vdev_raidz_ops) { |
3290 | raidz_dtl_reassessed(vd); | |
34dc7c2f | 3291 | } |
34dc7c2f BB |
3292 | } |
3293 | ||
55c12724 AH |
3294 | /* |
3295 | * Iterate over all the vdevs except spare, and post kobj events | |
3296 | */ | |
3297 | void | |
3298 | vdev_post_kobj_evt(vdev_t *vd) | |
3299 | { | |
3300 | if (vd->vdev_ops->vdev_op_kobj_evt_post && | |
3301 | vd->vdev_kobj_flag == B_FALSE) { | |
3302 | vd->vdev_kobj_flag = B_TRUE; | |
3303 | vd->vdev_ops->vdev_op_kobj_evt_post(vd); | |
3304 | } | |
3305 | ||
3306 | for (int c = 0; c < vd->vdev_children; c++) | |
3307 | vdev_post_kobj_evt(vd->vdev_child[c]); | |
3308 | } | |
3309 | ||
3310 | /* | |
3311 | * Iterate over all the vdevs except spare, and clear kobj events | |
3312 | */ | |
3313 | void | |
3314 | vdev_clear_kobj_evt(vdev_t *vd) | |
3315 | { | |
3316 | vd->vdev_kobj_flag = B_FALSE; | |
3317 | ||
3318 | for (int c = 0; c < vd->vdev_children; c++) | |
3319 | vdev_clear_kobj_evt(vd->vdev_child[c]); | |
3320 | } | |
3321 | ||
93cf2076 | 3322 | int |
34dc7c2f BB |
3323 | vdev_dtl_load(vdev_t *vd) |
3324 | { | |
3325 | spa_t *spa = vd->vdev_spa; | |
34dc7c2f | 3326 | objset_t *mos = spa->spa_meta_objset; |
4d0ba941 | 3327 | range_tree_t *rt; |
93cf2076 | 3328 | int error = 0; |
34dc7c2f | 3329 | |
93cf2076 | 3330 | if (vd->vdev_ops->vdev_op_leaf && vd->vdev_dtl_object != 0) { |
a1d477c2 | 3331 | ASSERT(vdev_is_concrete(vd)); |
34dc7c2f | 3332 | |
e39fe05b FU |
3333 | /* |
3334 | * If the dtl cannot be sync'd there is no need to open it. | |
3335 | */ | |
3336 | if (spa->spa_mode == SPA_MODE_READ && !spa->spa_read_spacemaps) | |
3337 | return (0); | |
3338 | ||
93cf2076 | 3339 | error = space_map_open(&vd->vdev_dtl_sm, mos, |
a1d477c2 | 3340 | vd->vdev_dtl_object, 0, -1ULL, 0); |
93cf2076 GW |
3341 | if (error) |
3342 | return (error); | |
3343 | ASSERT(vd->vdev_dtl_sm != NULL); | |
34dc7c2f | 3344 | |
4d0ba941 BB |
3345 | rt = range_tree_create(NULL, RANGE_SEG64, NULL, 0, 0); |
3346 | error = space_map_load(vd->vdev_dtl_sm, rt, SM_ALLOC); | |
3347 | if (error == 0) { | |
3348 | mutex_enter(&vd->vdev_dtl_lock); | |
3349 | range_tree_walk(rt, range_tree_add, | |
3350 | vd->vdev_dtl[DTL_MISSING]); | |
3351 | mutex_exit(&vd->vdev_dtl_lock); | |
3352 | } | |
3353 | ||
3354 | range_tree_vacate(rt, NULL, NULL); | |
3355 | range_tree_destroy(rt); | |
34dc7c2f | 3356 | |
93cf2076 GW |
3357 | return (error); |
3358 | } | |
3359 | ||
1c27024e | 3360 | for (int c = 0; c < vd->vdev_children; c++) { |
93cf2076 GW |
3361 | error = vdev_dtl_load(vd->vdev_child[c]); |
3362 | if (error != 0) | |
3363 | break; | |
3364 | } | |
34dc7c2f BB |
3365 | |
3366 | return (error); | |
3367 | } | |
3368 | ||
cc99f275 DB |
3369 | static void |
3370 | vdev_zap_allocation_data(vdev_t *vd, dmu_tx_t *tx) | |
3371 | { | |
3372 | spa_t *spa = vd->vdev_spa; | |
3373 | objset_t *mos = spa->spa_meta_objset; | |
3374 | vdev_alloc_bias_t alloc_bias = vd->vdev_alloc_bias; | |
3375 | const char *string; | |
3376 | ||
3377 | ASSERT(alloc_bias != VDEV_BIAS_NONE); | |
3378 | ||
3379 | string = | |
3380 | (alloc_bias == VDEV_BIAS_LOG) ? VDEV_ALLOC_BIAS_LOG : | |
3381 | (alloc_bias == VDEV_BIAS_SPECIAL) ? VDEV_ALLOC_BIAS_SPECIAL : | |
3382 | (alloc_bias == VDEV_BIAS_DEDUP) ? VDEV_ALLOC_BIAS_DEDUP : NULL; | |
3383 | ||
3384 | ASSERT(string != NULL); | |
3385 | VERIFY0(zap_add(mos, vd->vdev_top_zap, VDEV_TOP_ZAP_ALLOCATION_BIAS, | |
3386 | 1, strlen(string) + 1, string, tx)); | |
3387 | ||
3388 | if (alloc_bias == VDEV_BIAS_SPECIAL || alloc_bias == VDEV_BIAS_DEDUP) { | |
3389 | spa_activate_allocation_classes(spa, tx); | |
3390 | } | |
3391 | } | |
3392 | ||
e0ab3ab5 JS |
3393 | void |
3394 | vdev_destroy_unlink_zap(vdev_t *vd, uint64_t zapobj, dmu_tx_t *tx) | |
3395 | { | |
3396 | spa_t *spa = vd->vdev_spa; | |
3397 | ||
3398 | VERIFY0(zap_destroy(spa->spa_meta_objset, zapobj, tx)); | |
3399 | VERIFY0(zap_remove_int(spa->spa_meta_objset, spa->spa_all_vdev_zaps, | |
3400 | zapobj, tx)); | |
3401 | } | |
3402 | ||
3403 | uint64_t | |
3404 | vdev_create_link_zap(vdev_t *vd, dmu_tx_t *tx) | |
3405 | { | |
3406 | spa_t *spa = vd->vdev_spa; | |
3407 | uint64_t zap = zap_create(spa->spa_meta_objset, DMU_OTN_ZAP_METADATA, | |
3408 | DMU_OT_NONE, 0, tx); | |
3409 | ||
3410 | ASSERT(zap != 0); | |
3411 | VERIFY0(zap_add_int(spa->spa_meta_objset, spa->spa_all_vdev_zaps, | |
3412 | zap, tx)); | |
3413 | ||
3414 | return (zap); | |
3415 | } | |
3416 | ||
3417 | void | |
3418 | vdev_construct_zaps(vdev_t *vd, dmu_tx_t *tx) | |
3419 | { | |
e0ab3ab5 JS |
3420 | if (vd->vdev_ops != &vdev_hole_ops && |
3421 | vd->vdev_ops != &vdev_missing_ops && | |
3422 | vd->vdev_ops != &vdev_root_ops && | |
3423 | !vd->vdev_top->vdev_removing) { | |
3424 | if (vd->vdev_ops->vdev_op_leaf && vd->vdev_leaf_zap == 0) { | |
3425 | vd->vdev_leaf_zap = vdev_create_link_zap(vd, tx); | |
3426 | } | |
3427 | if (vd == vd->vdev_top && vd->vdev_top_zap == 0) { | |
3428 | vd->vdev_top_zap = vdev_create_link_zap(vd, tx); | |
cc99f275 DB |
3429 | if (vd->vdev_alloc_bias != VDEV_BIAS_NONE) |
3430 | vdev_zap_allocation_data(vd, tx); | |
e0ab3ab5 JS |
3431 | } |
3432 | } | |
3e4ed421 RW |
3433 | if (vd->vdev_ops == &vdev_root_ops && vd->vdev_root_zap == 0 && |
3434 | spa_feature_is_enabled(vd->vdev_spa, SPA_FEATURE_AVZ_V2)) { | |
3435 | if (!spa_feature_is_active(vd->vdev_spa, SPA_FEATURE_AVZ_V2)) | |
3436 | spa_feature_incr(vd->vdev_spa, SPA_FEATURE_AVZ_V2, tx); | |
3437 | vd->vdev_root_zap = vdev_create_link_zap(vd, tx); | |
3438 | } | |
cc99f275 | 3439 | |
1c27024e | 3440 | for (uint64_t i = 0; i < vd->vdev_children; i++) { |
e0ab3ab5 JS |
3441 | vdev_construct_zaps(vd->vdev_child[i], tx); |
3442 | } | |
3443 | } | |
3444 | ||
65c7cc49 | 3445 | static void |
34dc7c2f BB |
3446 | vdev_dtl_sync(vdev_t *vd, uint64_t txg) |
3447 | { | |
3448 | spa_t *spa = vd->vdev_spa; | |
93cf2076 | 3449 | range_tree_t *rt = vd->vdev_dtl[DTL_MISSING]; |
34dc7c2f | 3450 | objset_t *mos = spa->spa_meta_objset; |
93cf2076 | 3451 | range_tree_t *rtsync; |
34dc7c2f | 3452 | dmu_tx_t *tx; |
93cf2076 | 3453 | uint64_t object = space_map_object(vd->vdev_dtl_sm); |
34dc7c2f | 3454 | |
a1d477c2 | 3455 | ASSERT(vdev_is_concrete(vd)); |
93cf2076 | 3456 | ASSERT(vd->vdev_ops->vdev_op_leaf); |
428870ff | 3457 | |
34dc7c2f BB |
3458 | tx = dmu_tx_create_assigned(spa->spa_dsl_pool, txg); |
3459 | ||
93cf2076 GW |
3460 | if (vd->vdev_detached || vd->vdev_top->vdev_removing) { |
3461 | mutex_enter(&vd->vdev_dtl_lock); | |
3462 | space_map_free(vd->vdev_dtl_sm, tx); | |
3463 | space_map_close(vd->vdev_dtl_sm); | |
3464 | vd->vdev_dtl_sm = NULL; | |
3465 | mutex_exit(&vd->vdev_dtl_lock); | |
e0ab3ab5 JS |
3466 | |
3467 | /* | |
3468 | * We only destroy the leaf ZAP for detached leaves or for | |
3469 | * removed log devices. Removed data devices handle leaf ZAP | |
3470 | * cleanup later, once cancellation is no longer possible. | |
3471 | */ | |
3472 | if (vd->vdev_leaf_zap != 0 && (vd->vdev_detached || | |
3473 | vd->vdev_top->vdev_islog)) { | |
3474 | vdev_destroy_unlink_zap(vd, vd->vdev_leaf_zap, tx); | |
3475 | vd->vdev_leaf_zap = 0; | |
3476 | } | |
3477 | ||
34dc7c2f | 3478 | dmu_tx_commit(tx); |
34dc7c2f BB |
3479 | return; |
3480 | } | |
3481 | ||
93cf2076 GW |
3482 | if (vd->vdev_dtl_sm == NULL) { |
3483 | uint64_t new_object; | |
3484 | ||
93e28d66 | 3485 | new_object = space_map_alloc(mos, zfs_vdev_dtl_sm_blksz, tx); |
93cf2076 GW |
3486 | VERIFY3U(new_object, !=, 0); |
3487 | ||
3488 | VERIFY0(space_map_open(&vd->vdev_dtl_sm, mos, new_object, | |
a1d477c2 | 3489 | 0, -1ULL, 0)); |
93cf2076 | 3490 | ASSERT(vd->vdev_dtl_sm != NULL); |
34dc7c2f BB |
3491 | } |
3492 | ||
ca577779 | 3493 | rtsync = range_tree_create(NULL, RANGE_SEG64, NULL, 0, 0); |
34dc7c2f BB |
3494 | |
3495 | mutex_enter(&vd->vdev_dtl_lock); | |
93cf2076 | 3496 | range_tree_walk(rt, range_tree_add, rtsync); |
34dc7c2f BB |
3497 | mutex_exit(&vd->vdev_dtl_lock); |
3498 | ||
93e28d66 | 3499 | space_map_truncate(vd->vdev_dtl_sm, zfs_vdev_dtl_sm_blksz, tx); |
4d044c4c | 3500 | space_map_write(vd->vdev_dtl_sm, rtsync, SM_ALLOC, SM_NO_VDEVID, tx); |
93cf2076 | 3501 | range_tree_vacate(rtsync, NULL, NULL); |
34dc7c2f | 3502 | |
93cf2076 | 3503 | range_tree_destroy(rtsync); |
34dc7c2f | 3504 | |
93cf2076 GW |
3505 | /* |
3506 | * If the object for the space map has changed then dirty | |
3507 | * the top level so that we update the config. | |
3508 | */ | |
3509 | if (object != space_map_object(vd->vdev_dtl_sm)) { | |
4a0ee12a PZ |
3510 | vdev_dbgmsg(vd, "txg %llu, spa %s, DTL old object %llu, " |
3511 | "new object %llu", (u_longlong_t)txg, spa_name(spa), | |
3512 | (u_longlong_t)object, | |
3513 | (u_longlong_t)space_map_object(vd->vdev_dtl_sm)); | |
93cf2076 GW |
3514 | vdev_config_dirty(vd->vdev_top); |
3515 | } | |
34dc7c2f BB |
3516 | |
3517 | dmu_tx_commit(tx); | |
3518 | } | |
3519 | ||
fb5f0bc8 BB |
3520 | /* |
3521 | * Determine whether the specified vdev can be offlined/detached/removed | |
3522 | * without losing data. | |
3523 | */ | |
3524 | boolean_t | |
3525 | vdev_dtl_required(vdev_t *vd) | |
3526 | { | |
3527 | spa_t *spa = vd->vdev_spa; | |
3528 | vdev_t *tvd = vd->vdev_top; | |
3529 | uint8_t cant_read = vd->vdev_cant_read; | |
3530 | boolean_t required; | |
3531 | ||
3532 | ASSERT(spa_config_held(spa, SCL_STATE_ALL, RW_WRITER) == SCL_STATE_ALL); | |
3533 | ||
3534 | if (vd == spa->spa_root_vdev || vd == tvd) | |
3535 | return (B_TRUE); | |
3536 | ||
3537 | /* | |
3538 | * Temporarily mark the device as unreadable, and then determine | |
3539 | * whether this results in any DTL outages in the top-level vdev. | |
3540 | * If not, we can safely offline/detach/remove the device. | |
3541 | */ | |
3542 | vd->vdev_cant_read = B_TRUE; | |
9a49d3f3 | 3543 | vdev_dtl_reassess(tvd, 0, 0, B_FALSE, B_FALSE); |
fb5f0bc8 BB |
3544 | required = !vdev_dtl_empty(tvd, DTL_OUTAGE); |
3545 | vd->vdev_cant_read = cant_read; | |
9a49d3f3 | 3546 | vdev_dtl_reassess(tvd, 0, 0, B_FALSE, B_FALSE); |
fb5f0bc8 | 3547 | |
28caa74b MM |
3548 | if (!required && zio_injection_enabled) { |
3549 | required = !!zio_handle_device_injection(vd, NULL, | |
3550 | SET_ERROR(ECHILD)); | |
3551 | } | |
572e2857 | 3552 | |
fb5f0bc8 BB |
3553 | return (required); |
3554 | } | |
3555 | ||
b128c09f BB |
3556 | /* |
3557 | * Determine if resilver is needed, and if so the txg range. | |
3558 | */ | |
3559 | boolean_t | |
3560 | vdev_resilver_needed(vdev_t *vd, uint64_t *minp, uint64_t *maxp) | |
3561 | { | |
3562 | boolean_t needed = B_FALSE; | |
3563 | uint64_t thismin = UINT64_MAX; | |
3564 | uint64_t thismax = 0; | |
3565 | ||
3566 | if (vd->vdev_children == 0) { | |
3567 | mutex_enter(&vd->vdev_dtl_lock); | |
d2734cce | 3568 | if (!range_tree_is_empty(vd->vdev_dtl[DTL_MISSING]) && |
fb5f0bc8 | 3569 | vdev_writeable(vd)) { |
b128c09f | 3570 | |
5d1f7fb6 GW |
3571 | thismin = vdev_dtl_min(vd); |
3572 | thismax = vdev_dtl_max(vd); | |
b128c09f BB |
3573 | needed = B_TRUE; |
3574 | } | |
3575 | mutex_exit(&vd->vdev_dtl_lock); | |
3576 | } else { | |
1c27024e | 3577 | for (int c = 0; c < vd->vdev_children; c++) { |
b128c09f BB |
3578 | vdev_t *cvd = vd->vdev_child[c]; |
3579 | uint64_t cmin, cmax; | |
3580 | ||
3581 | if (vdev_resilver_needed(cvd, &cmin, &cmax)) { | |
3582 | thismin = MIN(thismin, cmin); | |
3583 | thismax = MAX(thismax, cmax); | |
3584 | needed = B_TRUE; | |
3585 | } | |
3586 | } | |
3587 | } | |
3588 | ||
3589 | if (needed && minp) { | |
3590 | *minp = thismin; | |
3591 | *maxp = thismax; | |
3592 | } | |
3593 | return (needed); | |
3594 | } | |
3595 | ||
d2734cce | 3596 | /* |
27f80e85 BB |
3597 | * Gets the checkpoint space map object from the vdev's ZAP. On success sm_obj |
3598 | * will contain either the checkpoint spacemap object or zero if none exists. | |
3599 | * All other errors are returned to the caller. | |
d2734cce SD |
3600 | */ |
3601 | int | |
27f80e85 | 3602 | vdev_checkpoint_sm_object(vdev_t *vd, uint64_t *sm_obj) |
d2734cce SD |
3603 | { |
3604 | ASSERT0(spa_config_held(vd->vdev_spa, SCL_ALL, RW_WRITER)); | |
27f80e85 | 3605 | |
d2734cce | 3606 | if (vd->vdev_top_zap == 0) { |
27f80e85 | 3607 | *sm_obj = 0; |
d2734cce SD |
3608 | return (0); |
3609 | } | |
3610 | ||
27f80e85 BB |
3611 | int error = zap_lookup(spa_meta_objset(vd->vdev_spa), vd->vdev_top_zap, |
3612 | VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, sizeof (uint64_t), 1, sm_obj); | |
3613 | if (error == ENOENT) { | |
3614 | *sm_obj = 0; | |
3615 | error = 0; | |
3616 | } | |
d2734cce | 3617 | |
27f80e85 | 3618 | return (error); |
d2734cce SD |
3619 | } |
3620 | ||
a1d477c2 | 3621 | int |
34dc7c2f BB |
3622 | vdev_load(vdev_t *vd) |
3623 | { | |
a0e01997 | 3624 | int children = vd->vdev_children; |
a1d477c2 | 3625 | int error = 0; |
a0e01997 AS |
3626 | taskq_t *tq = NULL; |
3627 | ||
3628 | /* | |
3629 | * It's only worthwhile to use the taskq for the root vdev, because the | |
3630 | * slow part is metaslab_init, and that only happens for top-level | |
3631 | * vdevs. | |
3632 | */ | |
3633 | if (vd->vdev_ops == &vdev_root_ops && vd->vdev_children > 0) { | |
3634 | tq = taskq_create("vdev_load", children, minclsyspri, | |
3635 | children, children, TASKQ_PREPOPULATE); | |
3636 | } | |
a1d477c2 | 3637 | |
34dc7c2f BB |
3638 | /* |
3639 | * Recursively load all children. | |
3640 | */ | |
a1d477c2 | 3641 | for (int c = 0; c < vd->vdev_children; c++) { |
a0e01997 AS |
3642 | vdev_t *cvd = vd->vdev_child[c]; |
3643 | ||
3644 | if (tq == NULL || vdev_uses_zvols(cvd)) { | |
3645 | cvd->vdev_load_error = vdev_load(cvd); | |
3646 | } else { | |
3647 | VERIFY(taskq_dispatch(tq, vdev_load_child, | |
3648 | cvd, TQ_SLEEP) != TASKQID_INVALID); | |
a1d477c2 MA |
3649 | } |
3650 | } | |
3651 | ||
a0e01997 AS |
3652 | if (tq != NULL) { |
3653 | taskq_wait(tq); | |
3654 | taskq_destroy(tq); | |
3655 | } | |
3656 | ||
3657 | for (int c = 0; c < vd->vdev_children; c++) { | |
3658 | int error = vd->vdev_child[c]->vdev_load_error; | |
3659 | ||
3660 | if (error != 0) | |
3661 | return (error); | |
3662 | } | |
3663 | ||
a1d477c2 | 3664 | vdev_set_deflate_ratio(vd); |
34dc7c2f | 3665 | |
5caeef02 DB |
3666 | if (vd->vdev_ops == &vdev_raidz_ops) { |
3667 | error = vdev_raidz_load(vd); | |
3668 | if (error != 0) | |
3669 | return (error); | |
3670 | } | |
3671 | ||
cc99f275 DB |
3672 | /* |
3673 | * On spa_load path, grab the allocation bias from our zap | |
3674 | */ | |
3675 | if (vd == vd->vdev_top && vd->vdev_top_zap != 0) { | |
3676 | spa_t *spa = vd->vdev_spa; | |
3677 | char bias_str[64]; | |
3678 | ||
3a92552f | 3679 | error = zap_lookup(spa->spa_meta_objset, vd->vdev_top_zap, |
cc99f275 | 3680 | VDEV_TOP_ZAP_ALLOCATION_BIAS, 1, sizeof (bias_str), |
3a92552f MA |
3681 | bias_str); |
3682 | if (error == 0) { | |
cc99f275 DB |
3683 | ASSERT(vd->vdev_alloc_bias == VDEV_BIAS_NONE); |
3684 | vd->vdev_alloc_bias = vdev_derive_alloc_bias(bias_str); | |
3a92552f MA |
3685 | } else if (error != ENOENT) { |
3686 | vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN, | |
3687 | VDEV_AUX_CORRUPT_DATA); | |
3688 | vdev_dbgmsg(vd, "vdev_load: zap_lookup(top_zap=%llu) " | |
5dbf6c5a AZ |
3689 | "failed [error=%d]", |
3690 | (u_longlong_t)vd->vdev_top_zap, error); | |
3a92552f | 3691 | return (error); |
cc99f275 DB |
3692 | } |
3693 | } | |
3694 | ||
16f0fdad MZ |
3695 | if (vd == vd->vdev_top && vd->vdev_top_zap != 0) { |
3696 | spa_t *spa = vd->vdev_spa; | |
3697 | uint64_t failfast; | |
3698 | ||
3699 | error = zap_lookup(spa->spa_meta_objset, vd->vdev_top_zap, | |
3700 | vdev_prop_to_name(VDEV_PROP_FAILFAST), sizeof (failfast), | |
3701 | 1, &failfast); | |
3702 | if (error == 0) { | |
3703 | vd->vdev_failfast = failfast & 1; | |
3704 | } else if (error == ENOENT) { | |
3705 | vd->vdev_failfast = vdev_prop_default_numeric( | |
3706 | VDEV_PROP_FAILFAST); | |
3707 | } else { | |
3708 | vdev_dbgmsg(vd, | |
3709 | "vdev_load: zap_lookup(top_zap=%llu) " | |
3710 | "failed [error=%d]", | |
3711 | (u_longlong_t)vd->vdev_top_zap, error); | |
3712 | } | |
3713 | } | |
3714 | ||
9a49d3f3 BB |
3715 | /* |
3716 | * Load any rebuild state from the top-level vdev zap. | |
3717 | */ | |
3718 | if (vd == vd->vdev_top && vd->vdev_top_zap != 0) { | |
3719 | error = vdev_rebuild_load(vd); | |
3720 | if (error && error != ENOTSUP) { | |
3721 | vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN, | |
3722 | VDEV_AUX_CORRUPT_DATA); | |
3723 | vdev_dbgmsg(vd, "vdev_load: vdev_rebuild_load " | |
3724 | "failed [error=%d]", error); | |
3725 | return (error); | |
3726 | } | |
3727 | } | |
3728 | ||
69f024a5 RW |
3729 | if (vd->vdev_top_zap != 0 || vd->vdev_leaf_zap != 0) { |
3730 | uint64_t zapobj; | |
3731 | ||
3732 | if (vd->vdev_top_zap != 0) | |
3733 | zapobj = vd->vdev_top_zap; | |
3734 | else | |
3735 | zapobj = vd->vdev_leaf_zap; | |
3736 | ||
3737 | error = vdev_prop_get_int(vd, VDEV_PROP_CHECKSUM_N, | |
3738 | &vd->vdev_checksum_n); | |
3739 | if (error && error != ENOENT) | |
3740 | vdev_dbgmsg(vd, "vdev_load: zap_lookup(zap=%llu) " | |
3741 | "failed [error=%d]", (u_longlong_t)zapobj, error); | |
3742 | ||
3743 | error = vdev_prop_get_int(vd, VDEV_PROP_CHECKSUM_T, | |
3744 | &vd->vdev_checksum_t); | |
3745 | if (error && error != ENOENT) | |
3746 | vdev_dbgmsg(vd, "vdev_load: zap_lookup(zap=%llu) " | |
3747 | "failed [error=%d]", (u_longlong_t)zapobj, error); | |
3748 | ||
3749 | error = vdev_prop_get_int(vd, VDEV_PROP_IO_N, | |
3750 | &vd->vdev_io_n); | |
3751 | if (error && error != ENOENT) | |
3752 | vdev_dbgmsg(vd, "vdev_load: zap_lookup(zap=%llu) " | |
3753 | "failed [error=%d]", (u_longlong_t)zapobj, error); | |
3754 | ||
3755 | error = vdev_prop_get_int(vd, VDEV_PROP_IO_T, | |
3756 | &vd->vdev_io_t); | |
3757 | if (error && error != ENOENT) | |
3758 | vdev_dbgmsg(vd, "vdev_load: zap_lookup(zap=%llu) " | |
3759 | "failed [error=%d]", (u_longlong_t)zapobj, error); | |
cbe88229 DB |
3760 | |
3761 | error = vdev_prop_get_int(vd, VDEV_PROP_SLOW_IO_N, | |
3762 | &vd->vdev_slow_io_n); | |
3763 | if (error && error != ENOENT) | |
3764 | vdev_dbgmsg(vd, "vdev_load: zap_lookup(zap=%llu) " | |
3765 | "failed [error=%d]", (u_longlong_t)zapobj, error); | |
3766 | ||
3767 | error = vdev_prop_get_int(vd, VDEV_PROP_SLOW_IO_T, | |
3768 | &vd->vdev_slow_io_t); | |
3769 | if (error && error != ENOENT) | |
3770 | vdev_dbgmsg(vd, "vdev_load: zap_lookup(zap=%llu) " | |
3771 | "failed [error=%d]", (u_longlong_t)zapobj, error); | |
69f024a5 RW |
3772 | } |
3773 | ||
34dc7c2f BB |
3774 | /* |
3775 | * If this is a top-level vdev, initialize its metaslabs. | |
3776 | */ | |
a1d477c2 | 3777 | if (vd == vd->vdev_top && vdev_is_concrete(vd)) { |
cc99f275 DB |
3778 | vdev_metaslab_group_create(vd); |
3779 | ||
a1d477c2 MA |
3780 | if (vd->vdev_ashift == 0 || vd->vdev_asize == 0) { |
3781 | vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN, | |
3782 | VDEV_AUX_CORRUPT_DATA); | |
4a0ee12a PZ |
3783 | vdev_dbgmsg(vd, "vdev_load: invalid size. ashift=%llu, " |
3784 | "asize=%llu", (u_longlong_t)vd->vdev_ashift, | |
3785 | (u_longlong_t)vd->vdev_asize); | |
a1d477c2 | 3786 | return (SET_ERROR(ENXIO)); |
928e8ad4 SD |
3787 | } |
3788 | ||
3789 | error = vdev_metaslab_init(vd, 0); | |
3790 | if (error != 0) { | |
4a0ee12a PZ |
3791 | vdev_dbgmsg(vd, "vdev_load: metaslab_init failed " |
3792 | "[error=%d]", error); | |
a1d477c2 MA |
3793 | vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN, |
3794 | VDEV_AUX_CORRUPT_DATA); | |
3795 | return (error); | |
3796 | } | |
d2734cce | 3797 | |
27f80e85 BB |
3798 | uint64_t checkpoint_sm_obj; |
3799 | error = vdev_checkpoint_sm_object(vd, &checkpoint_sm_obj); | |
3800 | if (error == 0 && checkpoint_sm_obj != 0) { | |
d2734cce SD |
3801 | objset_t *mos = spa_meta_objset(vd->vdev_spa); |
3802 | ASSERT(vd->vdev_asize != 0); | |
3803 | ASSERT3P(vd->vdev_checkpoint_sm, ==, NULL); | |
3804 | ||
928e8ad4 | 3805 | error = space_map_open(&vd->vdev_checkpoint_sm, |
d2734cce | 3806 | mos, checkpoint_sm_obj, 0, vd->vdev_asize, |
928e8ad4 SD |
3807 | vd->vdev_ashift); |
3808 | if (error != 0) { | |
d2734cce SD |
3809 | vdev_dbgmsg(vd, "vdev_load: space_map_open " |
3810 | "failed for checkpoint spacemap (obj %llu) " | |
3811 | "[error=%d]", | |
3812 | (u_longlong_t)checkpoint_sm_obj, error); | |
3813 | return (error); | |
3814 | } | |
3815 | ASSERT3P(vd->vdev_checkpoint_sm, !=, NULL); | |
d2734cce SD |
3816 | |
3817 | /* | |
3818 | * Since the checkpoint_sm contains free entries | |
425d3237 SD |
3819 | * exclusively we can use space_map_allocated() to |
3820 | * indicate the cumulative checkpointed space that | |
3821 | * has been freed. | |
d2734cce SD |
3822 | */ |
3823 | vd->vdev_stat.vs_checkpoint_space = | |
425d3237 | 3824 | -space_map_allocated(vd->vdev_checkpoint_sm); |
d2734cce SD |
3825 | vd->vdev_spa->spa_checkpoint_info.sci_dspace += |
3826 | vd->vdev_stat.vs_checkpoint_space; | |
27f80e85 BB |
3827 | } else if (error != 0) { |
3828 | vdev_dbgmsg(vd, "vdev_load: failed to retrieve " | |
3829 | "checkpoint space map object from vdev ZAP " | |
3830 | "[error=%d]", error); | |
3831 | return (error); | |
d2734cce | 3832 | } |
a1d477c2 MA |
3833 | } |
3834 | ||
34dc7c2f BB |
3835 | /* |
3836 | * If this is a leaf vdev, load its DTL. | |
3837 | */ | |
a1d477c2 | 3838 | if (vd->vdev_ops->vdev_op_leaf && (error = vdev_dtl_load(vd)) != 0) { |
34dc7c2f BB |
3839 | vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN, |
3840 | VDEV_AUX_CORRUPT_DATA); | |
4a0ee12a PZ |
3841 | vdev_dbgmsg(vd, "vdev_load: vdev_dtl_load failed " |
3842 | "[error=%d]", error); | |
a1d477c2 MA |
3843 | return (error); |
3844 | } | |
3845 | ||
27f80e85 BB |
3846 | uint64_t obsolete_sm_object; |
3847 | error = vdev_obsolete_sm_object(vd, &obsolete_sm_object); | |
3848 | if (error == 0 && obsolete_sm_object != 0) { | |
a1d477c2 MA |
3849 | objset_t *mos = vd->vdev_spa->spa_meta_objset; |
3850 | ASSERT(vd->vdev_asize != 0); | |
d2734cce | 3851 | ASSERT3P(vd->vdev_obsolete_sm, ==, NULL); |
a1d477c2 MA |
3852 | |
3853 | if ((error = space_map_open(&vd->vdev_obsolete_sm, mos, | |
3854 | obsolete_sm_object, 0, vd->vdev_asize, 0))) { | |
3855 | vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN, | |
3856 | VDEV_AUX_CORRUPT_DATA); | |
4a0ee12a PZ |
3857 | vdev_dbgmsg(vd, "vdev_load: space_map_open failed for " |
3858 | "obsolete spacemap (obj %llu) [error=%d]", | |
3859 | (u_longlong_t)obsolete_sm_object, error); | |
a1d477c2 MA |
3860 | return (error); |
3861 | } | |
27f80e85 BB |
3862 | } else if (error != 0) { |
3863 | vdev_dbgmsg(vd, "vdev_load: failed to retrieve obsolete " | |
3864 | "space map object from vdev ZAP [error=%d]", error); | |
3865 | return (error); | |
a1d477c2 MA |
3866 | } |
3867 | ||
3868 | return (0); | |
34dc7c2f BB |
3869 | } |
3870 | ||
3871 | /* | |
3872 | * The special vdev case is used for hot spares and l2cache devices. Its | |
3873 | * sole purpose it to set the vdev state for the associated vdev. To do this, | |
3874 | * we make sure that we can open the underlying device, then try to read the | |
3875 | * label, and make sure that the label is sane and that it hasn't been | |
3876 | * repurposed to another pool. | |
3877 | */ | |
3878 | int | |
3879 | vdev_validate_aux(vdev_t *vd) | |
3880 | { | |
3881 | nvlist_t *label; | |
3882 | uint64_t guid, version; | |
3883 | uint64_t state; | |
3884 | ||
b128c09f BB |
3885 | if (!vdev_readable(vd)) |
3886 | return (0); | |
3887 | ||
3bc7e0fb | 3888 | if ((label = vdev_label_read_config(vd, -1ULL)) == NULL) { |
34dc7c2f BB |
3889 | vdev_set_state(vd, B_TRUE, VDEV_STATE_CANT_OPEN, |
3890 | VDEV_AUX_CORRUPT_DATA); | |
3891 | return (-1); | |
3892 | } | |
3893 | ||
3894 | if (nvlist_lookup_uint64(label, ZPOOL_CONFIG_VERSION, &version) != 0 || | |
9ae529ec | 3895 | !SPA_VERSION_IS_SUPPORTED(version) || |
34dc7c2f BB |
3896 | nvlist_lookup_uint64(label, ZPOOL_CONFIG_GUID, &guid) != 0 || |
3897 | guid != vd->vdev_guid || | |
3898 | nvlist_lookup_uint64(label, ZPOOL_CONFIG_POOL_STATE, &state) != 0) { | |
3899 | vdev_set_state(vd, B_TRUE, VDEV_STATE_CANT_OPEN, | |
3900 | VDEV_AUX_CORRUPT_DATA); | |
3901 | nvlist_free(label); | |
3902 | return (-1); | |
3903 | } | |
3904 | ||
3905 | /* | |
3906 | * We don't actually check the pool state here. If it's in fact in | |
3907 | * use by another pool, we update this fact on the fly when requested. | |
3908 | */ | |
3909 | nvlist_free(label); | |
3910 | return (0); | |
3911 | } | |
3912 | ||
93e28d66 SD |
3913 | static void |
3914 | vdev_destroy_ms_flush_data(vdev_t *vd, dmu_tx_t *tx) | |
3915 | { | |
3916 | objset_t *mos = spa_meta_objset(vd->vdev_spa); | |
3917 | ||
3918 | if (vd->vdev_top_zap == 0) | |
3919 | return; | |
3920 | ||
3921 | uint64_t object = 0; | |
3922 | int err = zap_lookup(mos, vd->vdev_top_zap, | |
3923 | VDEV_TOP_ZAP_MS_UNFLUSHED_PHYS_TXGS, sizeof (uint64_t), 1, &object); | |
3924 | if (err == ENOENT) | |
3925 | return; | |
3a92552f | 3926 | VERIFY0(err); |
93e28d66 SD |
3927 | |
3928 | VERIFY0(dmu_object_free(mos, object, tx)); | |
3929 | VERIFY0(zap_remove(mos, vd->vdev_top_zap, | |
3930 | VDEV_TOP_ZAP_MS_UNFLUSHED_PHYS_TXGS, tx)); | |
3931 | } | |
3932 | ||
a1d477c2 MA |
3933 | /* |
3934 | * Free the objects used to store this vdev's spacemaps, and the array | |
3935 | * that points to them. | |
3936 | */ | |
428870ff | 3937 | void |
a1d477c2 MA |
3938 | vdev_destroy_spacemaps(vdev_t *vd, dmu_tx_t *tx) |
3939 | { | |
3940 | if (vd->vdev_ms_array == 0) | |
3941 | return; | |
3942 | ||
3943 | objset_t *mos = vd->vdev_spa->spa_meta_objset; | |
3944 | uint64_t array_count = vd->vdev_asize >> vd->vdev_ms_shift; | |
3945 | size_t array_bytes = array_count * sizeof (uint64_t); | |
3946 | uint64_t *smobj_array = kmem_alloc(array_bytes, KM_SLEEP); | |
3947 | VERIFY0(dmu_read(mos, vd->vdev_ms_array, 0, | |
3948 | array_bytes, smobj_array, 0)); | |
3949 | ||
3950 | for (uint64_t i = 0; i < array_count; i++) { | |
3951 | uint64_t smobj = smobj_array[i]; | |
3952 | if (smobj == 0) | |
3953 | continue; | |
3954 | ||
3955 | space_map_free_obj(mos, smobj, tx); | |
3956 | } | |
3957 | ||
3958 | kmem_free(smobj_array, array_bytes); | |
3959 | VERIFY0(dmu_object_free(mos, vd->vdev_ms_array, tx)); | |
93e28d66 | 3960 | vdev_destroy_ms_flush_data(vd, tx); |
a1d477c2 MA |
3961 | vd->vdev_ms_array = 0; |
3962 | } | |
3963 | ||
3964 | static void | |
ee900344 | 3965 | vdev_remove_empty_log(vdev_t *vd, uint64_t txg) |
428870ff BB |
3966 | { |
3967 | spa_t *spa = vd->vdev_spa; | |
428870ff | 3968 | |
ee900344 | 3969 | ASSERT(vd->vdev_islog); |
e0ab3ab5 JS |
3970 | ASSERT(vd == vd->vdev_top); |
3971 | ASSERT3U(txg, ==, spa_syncing_txg(spa)); | |
428870ff | 3972 | |
ee900344 | 3973 | dmu_tx_t *tx = dmu_tx_create_assigned(spa_get_dsl(spa), txg); |
e0ab3ab5 | 3974 | |
ee900344 SD |
3975 | vdev_destroy_spacemaps(vd, tx); |
3976 | if (vd->vdev_top_zap != 0) { | |
e0ab3ab5 JS |
3977 | vdev_destroy_unlink_zap(vd, vd->vdev_top_zap, tx); |
3978 | vd->vdev_top_zap = 0; | |
3979 | } | |
ee900344 | 3980 | |
428870ff BB |
3981 | dmu_tx_commit(tx); |
3982 | } | |
3983 | ||
34dc7c2f BB |
3984 | void |
3985 | vdev_sync_done(vdev_t *vd, uint64_t txg) | |
3986 | { | |
3987 | metaslab_t *msp; | |
428870ff BB |
3988 | boolean_t reassess = !txg_list_empty(&vd->vdev_ms_list, TXG_CLEAN(txg)); |
3989 | ||
a1d477c2 | 3990 | ASSERT(vdev_is_concrete(vd)); |
34dc7c2f | 3991 | |
619f0976 GW |
3992 | while ((msp = txg_list_remove(&vd->vdev_ms_list, TXG_CLEAN(txg))) |
3993 | != NULL) | |
34dc7c2f | 3994 | metaslab_sync_done(msp, txg); |
428870ff | 3995 | |
aa755b35 | 3996 | if (reassess) { |
428870ff | 3997 | metaslab_sync_reassess(vd->vdev_mg); |
aa755b35 MA |
3998 | if (vd->vdev_log_mg != NULL) |
3999 | metaslab_sync_reassess(vd->vdev_log_mg); | |
4000 | } | |
34dc7c2f BB |
4001 | } |
4002 | ||
4003 | void | |
4004 | vdev_sync(vdev_t *vd, uint64_t txg) | |
4005 | { | |
4006 | spa_t *spa = vd->vdev_spa; | |
4007 | vdev_t *lvd; | |
4008 | metaslab_t *msp; | |
34dc7c2f | 4009 | |
6c926f42 SD |
4010 | ASSERT3U(txg, ==, spa->spa_syncing_txg); |
4011 | dmu_tx_t *tx = dmu_tx_create_assigned(spa->spa_dsl_pool, txg); | |
a1d477c2 | 4012 | if (range_tree_space(vd->vdev_obsolete_segments) > 0) { |
a1d477c2 MA |
4013 | ASSERT(vd->vdev_removing || |
4014 | vd->vdev_ops == &vdev_indirect_ops); | |
4015 | ||
a1d477c2 | 4016 | vdev_indirect_sync_obsolete(vd, tx); |
a1d477c2 MA |
4017 | |
4018 | /* | |
4019 | * If the vdev is indirect, it can't have dirty | |
4020 | * metaslabs or DTLs. | |
4021 | */ | |
4022 | if (vd->vdev_ops == &vdev_indirect_ops) { | |
4023 | ASSERT(txg_list_empty(&vd->vdev_ms_list, txg)); | |
4024 | ASSERT(txg_list_empty(&vd->vdev_dtl_list, txg)); | |
6c926f42 | 4025 | dmu_tx_commit(tx); |
a1d477c2 MA |
4026 | return; |
4027 | } | |
4028 | } | |
4029 | ||
4030 | ASSERT(vdev_is_concrete(vd)); | |
4031 | ||
4032 | if (vd->vdev_ms_array == 0 && vd->vdev_ms_shift != 0 && | |
4033 | !vd->vdev_removing) { | |
34dc7c2f | 4034 | ASSERT(vd == vd->vdev_top); |
a1d477c2 | 4035 | ASSERT0(vd->vdev_indirect_config.vic_mapping_object); |
34dc7c2f BB |
4036 | vd->vdev_ms_array = dmu_object_alloc(spa->spa_meta_objset, |
4037 | DMU_OT_OBJECT_ARRAY, 0, DMU_OT_NONE, 0, tx); | |
4038 | ASSERT(vd->vdev_ms_array != 0); | |
4039 | vdev_config_dirty(vd); | |
34dc7c2f BB |
4040 | } |
4041 | ||
4042 | while ((msp = txg_list_remove(&vd->vdev_ms_list, txg)) != NULL) { | |
4043 | metaslab_sync(msp, txg); | |
4044 | (void) txg_list_add(&vd->vdev_ms_list, msp, TXG_CLEAN(txg)); | |
4045 | } | |
4046 | ||
4047 | while ((lvd = txg_list_remove(&vd->vdev_dtl_list, txg)) != NULL) | |
4048 | vdev_dtl_sync(lvd, txg); | |
4049 | ||
a1d477c2 | 4050 | /* |
ee900344 SD |
4051 | * If this is an empty log device being removed, destroy the |
4052 | * metadata associated with it. | |
a1d477c2 | 4053 | */ |
ee900344 SD |
4054 | if (vd->vdev_islog && vd->vdev_stat.vs_alloc == 0 && vd->vdev_removing) |
4055 | vdev_remove_empty_log(vd, txg); | |
a1d477c2 | 4056 | |
34dc7c2f | 4057 | (void) txg_list_add(&spa->spa_vdev_txg_list, vd, TXG_CLEAN(txg)); |
6c926f42 | 4058 | dmu_tx_commit(tx); |
34dc7c2f BB |
4059 | } |
4060 | ||
5caeef02 DB |
4061 | /* |
4062 | * Return the amount of space that should be (or was) allocated for the given | |
4063 | * psize (compressed block size) in the given TXG. Note that for expanded | |
4064 | * RAIDZ vdevs, the size allocated for older BP's may be larger. See | |
4065 | * vdev_raidz_asize(). | |
4066 | */ | |
4067 | uint64_t | |
4068 | vdev_psize_to_asize_txg(vdev_t *vd, uint64_t psize, uint64_t txg) | |
4069 | { | |
4070 | return (vd->vdev_ops->vdev_op_asize(vd, psize, txg)); | |
4071 | } | |
4072 | ||
34dc7c2f BB |
4073 | uint64_t |
4074 | vdev_psize_to_asize(vdev_t *vd, uint64_t psize) | |
4075 | { | |
5caeef02 | 4076 | return (vdev_psize_to_asize_txg(vd, psize, 0)); |
34dc7c2f BB |
4077 | } |
4078 | ||
34dc7c2f BB |
4079 | /* |
4080 | * Mark the given vdev faulted. A faulted vdev behaves as if the device could | |
4081 | * not be opened, and no I/O is attempted. | |
4082 | */ | |
4083 | int | |
428870ff | 4084 | vdev_fault(spa_t *spa, uint64_t guid, vdev_aux_t aux) |
34dc7c2f | 4085 | { |
572e2857 | 4086 | vdev_t *vd, *tvd; |
34dc7c2f | 4087 | |
428870ff | 4088 | spa_vdev_state_enter(spa, SCL_NONE); |
34dc7c2f | 4089 | |
b128c09f | 4090 | if ((vd = spa_lookup_by_guid(spa, guid, B_TRUE)) == NULL) |
28caa74b | 4091 | return (spa_vdev_state_exit(spa, NULL, SET_ERROR(ENODEV))); |
34dc7c2f | 4092 | |
34dc7c2f | 4093 | if (!vd->vdev_ops->vdev_op_leaf) |
28caa74b | 4094 | return (spa_vdev_state_exit(spa, NULL, SET_ERROR(ENOTSUP))); |
34dc7c2f | 4095 | |
572e2857 BB |
4096 | tvd = vd->vdev_top; |
4097 | ||
4a283c7f TH |
4098 | /* |
4099 | * If user did a 'zpool offline -f' then make the fault persist across | |
4100 | * reboots. | |
4101 | */ | |
4102 | if (aux == VDEV_AUX_EXTERNAL_PERSIST) { | |
4103 | /* | |
4104 | * There are two kinds of forced faults: temporary and | |
4105 | * persistent. Temporary faults go away at pool import, while | |
4106 | * persistent faults stay set. Both types of faults can be | |
4107 | * cleared with a zpool clear. | |
4108 | * | |
4109 | * We tell if a vdev is persistently faulted by looking at the | |
4110 | * ZPOOL_CONFIG_AUX_STATE nvpair. If it's set to "external" at | |
4111 | * import then it's a persistent fault. Otherwise, it's | |
4112 | * temporary. We get ZPOOL_CONFIG_AUX_STATE set to "external" | |
4113 | * by setting vd.vdev_stat.vs_aux to VDEV_AUX_EXTERNAL. This | |
4114 | * tells vdev_config_generate() (which gets run later) to set | |
4115 | * ZPOOL_CONFIG_AUX_STATE to "external" in the nvlist. | |
4116 | */ | |
4117 | vd->vdev_stat.vs_aux = VDEV_AUX_EXTERNAL; | |
4118 | vd->vdev_tmpoffline = B_FALSE; | |
4119 | aux = VDEV_AUX_EXTERNAL; | |
4120 | } else { | |
4121 | vd->vdev_tmpoffline = B_TRUE; | |
4122 | } | |
4123 | ||
428870ff BB |
4124 | /* |
4125 | * We don't directly use the aux state here, but if we do a | |
4126 | * vdev_reopen(), we need this value to be present to remember why we | |
4127 | * were faulted. | |
4128 | */ | |
4129 | vd->vdev_label_aux = aux; | |
4130 | ||
34dc7c2f BB |
4131 | /* |
4132 | * Faulted state takes precedence over degraded. | |
4133 | */ | |
428870ff | 4134 | vd->vdev_delayed_close = B_FALSE; |
34dc7c2f BB |
4135 | vd->vdev_faulted = 1ULL; |
4136 | vd->vdev_degraded = 0ULL; | |
428870ff | 4137 | vdev_set_state(vd, B_FALSE, VDEV_STATE_FAULTED, aux); |
34dc7c2f BB |
4138 | |
4139 | /* | |
428870ff BB |
4140 | * If this device has the only valid copy of the data, then |
4141 | * back off and simply mark the vdev as degraded instead. | |
34dc7c2f | 4142 | */ |
572e2857 | 4143 | if (!tvd->vdev_islog && vd->vdev_aux == NULL && vdev_dtl_required(vd)) { |
34dc7c2f BB |
4144 | vd->vdev_degraded = 1ULL; |
4145 | vd->vdev_faulted = 0ULL; | |
4146 | ||
4147 | /* | |
4148 | * If we reopen the device and it's not dead, only then do we | |
4149 | * mark it degraded. | |
4150 | */ | |
572e2857 | 4151 | vdev_reopen(tvd); |
34dc7c2f | 4152 | |
428870ff BB |
4153 | if (vdev_readable(vd)) |
4154 | vdev_set_state(vd, B_FALSE, VDEV_STATE_DEGRADED, aux); | |
34dc7c2f BB |
4155 | } |
4156 | ||
b128c09f | 4157 | return (spa_vdev_state_exit(spa, vd, 0)); |
34dc7c2f BB |
4158 | } |
4159 | ||
4160 | /* | |
4161 | * Mark the given vdev degraded. A degraded vdev is purely an indication to the | |
4162 | * user that something is wrong. The vdev continues to operate as normal as far | |
4163 | * as I/O is concerned. | |
4164 | */ | |
4165 | int | |
428870ff | 4166 | vdev_degrade(spa_t *spa, uint64_t guid, vdev_aux_t aux) |
34dc7c2f | 4167 | { |
b128c09f | 4168 | vdev_t *vd; |
34dc7c2f | 4169 | |
428870ff | 4170 | spa_vdev_state_enter(spa, SCL_NONE); |
34dc7c2f | 4171 | |
b128c09f | 4172 | if ((vd = spa_lookup_by_guid(spa, guid, B_TRUE)) == NULL) |
28caa74b | 4173 | return (spa_vdev_state_exit(spa, NULL, SET_ERROR(ENODEV))); |
34dc7c2f | 4174 | |
34dc7c2f | 4175 | if (!vd->vdev_ops->vdev_op_leaf) |
28caa74b | 4176 | return (spa_vdev_state_exit(spa, NULL, SET_ERROR(ENOTSUP))); |
34dc7c2f BB |
4177 | |
4178 | /* | |
4179 | * If the vdev is already faulted, then don't do anything. | |
4180 | */ | |
b128c09f BB |
4181 | if (vd->vdev_faulted || vd->vdev_degraded) |
4182 | return (spa_vdev_state_exit(spa, NULL, 0)); | |
34dc7c2f BB |
4183 | |
4184 | vd->vdev_degraded = 1ULL; | |
4185 | if (!vdev_is_dead(vd)) | |
4186 | vdev_set_state(vd, B_FALSE, VDEV_STATE_DEGRADED, | |
428870ff | 4187 | aux); |
34dc7c2f | 4188 | |
b128c09f | 4189 | return (spa_vdev_state_exit(spa, vd, 0)); |
34dc7c2f BB |
4190 | } |
4191 | ||
55c12724 AH |
4192 | int |
4193 | vdev_remove_wanted(spa_t *spa, uint64_t guid) | |
4194 | { | |
4195 | vdev_t *vd; | |
4196 | ||
4197 | spa_vdev_state_enter(spa, SCL_NONE); | |
4198 | ||
4199 | if ((vd = spa_lookup_by_guid(spa, guid, B_TRUE)) == NULL) | |
4200 | return (spa_vdev_state_exit(spa, NULL, SET_ERROR(ENODEV))); | |
4201 | ||
4202 | /* | |
577e835f BB |
4203 | * If the vdev is already removed, or expanding which can trigger |
4204 | * repartition add/remove events, then don't do anything. | |
55c12724 | 4205 | */ |
577e835f | 4206 | if (vd->vdev_removed || vd->vdev_expanding) |
55c12724 AH |
4207 | return (spa_vdev_state_exit(spa, NULL, 0)); |
4208 | ||
577e835f BB |
4209 | /* |
4210 | * Confirm the vdev has been removed, otherwise don't do anything. | |
4211 | */ | |
4212 | if (vd->vdev_ops->vdev_op_leaf && !zio_wait(vdev_probe(vd, NULL))) | |
4213 | return (spa_vdev_state_exit(spa, NULL, SET_ERROR(EEXIST))); | |
4214 | ||
55c12724 AH |
4215 | vd->vdev_remove_wanted = B_TRUE; |
4216 | spa_async_request(spa, SPA_ASYNC_REMOVE); | |
4217 | ||
4218 | return (spa_vdev_state_exit(spa, vd, 0)); | |
4219 | } | |
4220 | ||
4221 | ||
34dc7c2f | 4222 | /* |
d3cc8b15 WA |
4223 | * Online the given vdev. |
4224 | * | |
4225 | * If 'ZFS_ONLINE_UNSPARE' is set, it implies two things. First, any attached | |
4226 | * spare device should be detached when the device finishes resilvering. | |
4227 | * Second, the online should be treated like a 'test' online case, so no FMA | |
4228 | * events are generated if the device fails to open. | |
34dc7c2f BB |
4229 | */ |
4230 | int | |
b128c09f | 4231 | vdev_online(spa_t *spa, uint64_t guid, uint64_t flags, vdev_state_t *newstate) |
34dc7c2f | 4232 | { |
9babb374 | 4233 | vdev_t *vd, *tvd, *pvd, *rvd = spa->spa_root_vdev; |
153b2285 YP |
4234 | boolean_t wasoffline; |
4235 | vdev_state_t oldstate; | |
34dc7c2f | 4236 | |
428870ff | 4237 | spa_vdev_state_enter(spa, SCL_NONE); |
34dc7c2f | 4238 | |
b128c09f | 4239 | if ((vd = spa_lookup_by_guid(spa, guid, B_TRUE)) == NULL) |
28caa74b | 4240 | return (spa_vdev_state_exit(spa, NULL, SET_ERROR(ENODEV))); |
34dc7c2f | 4241 | |
153b2285 YP |
4242 | wasoffline = (vd->vdev_offline || vd->vdev_tmpoffline); |
4243 | oldstate = vd->vdev_state; | |
fb390aaf | 4244 | |
9babb374 | 4245 | tvd = vd->vdev_top; |
34dc7c2f BB |
4246 | vd->vdev_offline = B_FALSE; |
4247 | vd->vdev_tmpoffline = B_FALSE; | |
b128c09f BB |
4248 | vd->vdev_checkremove = !!(flags & ZFS_ONLINE_CHECKREMOVE); |
4249 | vd->vdev_forcefault = !!(flags & ZFS_ONLINE_FORCEFAULT); | |
9babb374 BB |
4250 | |
4251 | /* XXX - L2ARC 1.0 does not support expansion */ | |
4252 | if (!vd->vdev_aux) { | |
4253 | for (pvd = vd; pvd != rvd; pvd = pvd->vdev_parent) | |
d441e85d BB |
4254 | pvd->vdev_expanding = !!((flags & ZFS_ONLINE_EXPAND) || |
4255 | spa->spa_autoexpand); | |
d48091de | 4256 | vd->vdev_expansion_time = gethrestime_sec(); |
9babb374 BB |
4257 | } |
4258 | ||
4259 | vdev_reopen(tvd); | |
34dc7c2f BB |
4260 | vd->vdev_checkremove = vd->vdev_forcefault = B_FALSE; |
4261 | ||
9babb374 BB |
4262 | if (!vd->vdev_aux) { |
4263 | for (pvd = vd; pvd != rvd; pvd = pvd->vdev_parent) | |
4264 | pvd->vdev_expanding = B_FALSE; | |
4265 | } | |
4266 | ||
34dc7c2f BB |
4267 | if (newstate) |
4268 | *newstate = vd->vdev_state; | |
4269 | if ((flags & ZFS_ONLINE_UNSPARE) && | |
4270 | !vdev_is_dead(vd) && vd->vdev_parent && | |
4271 | vd->vdev_parent->vdev_ops == &vdev_spare_ops && | |
4272 | vd->vdev_parent->vdev_child[0] == vd) | |
4273 | vd->vdev_unspare = B_TRUE; | |
4274 | ||
9babb374 BB |
4275 | if ((flags & ZFS_ONLINE_EXPAND) || spa->spa_autoexpand) { |
4276 | ||
4277 | /* XXX - L2ARC 1.0 does not support expansion */ | |
4278 | if (vd->vdev_aux) | |
4279 | return (spa_vdev_state_exit(spa, vd, ENOTSUP)); | |
ea30b5a9 | 4280 | spa->spa_ccw_fail_time = 0; |
9babb374 BB |
4281 | spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE); |
4282 | } | |
fb390aaf | 4283 | |
619f0976 GW |
4284 | /* Restart initializing if necessary */ |
4285 | mutex_enter(&vd->vdev_initialize_lock); | |
4286 | if (vdev_writeable(vd) && | |
4287 | vd->vdev_initialize_thread == NULL && | |
4288 | vd->vdev_initialize_state == VDEV_INITIALIZE_ACTIVE) { | |
4289 | (void) vdev_initialize(vd); | |
4290 | } | |
4291 | mutex_exit(&vd->vdev_initialize_lock); | |
4292 | ||
b7654bd7 GA |
4293 | /* |
4294 | * Restart trimming if necessary. We do not restart trimming for cache | |
4295 | * devices here. This is triggered by l2arc_rebuild_vdev() | |
4296 | * asynchronously for the whole device or in l2arc_evict() as it evicts | |
4297 | * space for upcoming writes. | |
4298 | */ | |
1b939560 | 4299 | mutex_enter(&vd->vdev_trim_lock); |
b7654bd7 | 4300 | if (vdev_writeable(vd) && !vd->vdev_isl2cache && |
1b939560 BB |
4301 | vd->vdev_trim_thread == NULL && |
4302 | vd->vdev_trim_state == VDEV_TRIM_ACTIVE) { | |
4303 | (void) vdev_trim(vd, vd->vdev_trim_rate, vd->vdev_trim_partial, | |
4304 | vd->vdev_trim_secure); | |
4305 | } | |
4306 | mutex_exit(&vd->vdev_trim_lock); | |
4307 | ||
153b2285 YP |
4308 | if (wasoffline || |
4309 | (oldstate < VDEV_STATE_DEGRADED && | |
719534ca | 4310 | vd->vdev_state >= VDEV_STATE_DEGRADED)) { |
12fa0466 | 4311 | spa_event_notify(spa, vd, NULL, ESC_ZFS_VDEV_ONLINE); |
fb390aaf | 4312 | |
719534ca AH |
4313 | /* |
4314 | * Asynchronously detach spare vdev if resilver or | |
4315 | * rebuild is not required | |
4316 | */ | |
4317 | if (vd->vdev_unspare && | |
4318 | !dsl_scan_resilvering(spa->spa_dsl_pool) && | |
4319 | !dsl_scan_resilver_scheduled(spa->spa_dsl_pool) && | |
4320 | !vdev_rebuild_active(tvd)) | |
4321 | spa_async_request(spa, SPA_ASYNC_DETACH_SPARE); | |
4322 | } | |
fb5f0bc8 | 4323 | return (spa_vdev_state_exit(spa, vd, 0)); |
34dc7c2f BB |
4324 | } |
4325 | ||
428870ff BB |
4326 | static int |
4327 | vdev_offline_locked(spa_t *spa, uint64_t guid, uint64_t flags) | |
34dc7c2f | 4328 | { |
9babb374 | 4329 | vdev_t *vd, *tvd; |
428870ff BB |
4330 | int error = 0; |
4331 | uint64_t generation; | |
4332 | metaslab_group_t *mg; | |
34dc7c2f | 4333 | |
428870ff BB |
4334 | top: |
4335 | spa_vdev_state_enter(spa, SCL_ALLOC); | |
34dc7c2f | 4336 | |
b128c09f | 4337 | if ((vd = spa_lookup_by_guid(spa, guid, B_TRUE)) == NULL) |
28caa74b | 4338 | return (spa_vdev_state_exit(spa, NULL, SET_ERROR(ENODEV))); |
34dc7c2f BB |
4339 | |
4340 | if (!vd->vdev_ops->vdev_op_leaf) | |
28caa74b | 4341 | return (spa_vdev_state_exit(spa, NULL, SET_ERROR(ENOTSUP))); |
34dc7c2f | 4342 | |
b2255edc BB |
4343 | if (vd->vdev_ops == &vdev_draid_spare_ops) |
4344 | return (spa_vdev_state_exit(spa, NULL, ENOTSUP)); | |
4345 | ||
9babb374 | 4346 | tvd = vd->vdev_top; |
428870ff BB |
4347 | mg = tvd->vdev_mg; |
4348 | generation = spa->spa_config_generation + 1; | |
9babb374 | 4349 | |
34dc7c2f BB |
4350 | /* |
4351 | * If the device isn't already offline, try to offline it. | |
4352 | */ | |
4353 | if (!vd->vdev_offline) { | |
4354 | /* | |
fb5f0bc8 | 4355 | * If this device has the only valid copy of some data, |
9babb374 BB |
4356 | * don't allow it to be offlined. Log devices are always |
4357 | * expendable. | |
34dc7c2f | 4358 | */ |
9babb374 BB |
4359 | if (!tvd->vdev_islog && vd->vdev_aux == NULL && |
4360 | vdev_dtl_required(vd)) | |
28caa74b MM |
4361 | return (spa_vdev_state_exit(spa, NULL, |
4362 | SET_ERROR(EBUSY))); | |
34dc7c2f | 4363 | |
428870ff BB |
4364 | /* |
4365 | * If the top-level is a slog and it has had allocations | |
4366 | * then proceed. We check that the vdev's metaslab group | |
4367 | * is not NULL since it's possible that we may have just | |
4368 | * added this vdev but not yet initialized its metaslabs. | |
4369 | */ | |
4370 | if (tvd->vdev_islog && mg != NULL) { | |
4371 | /* | |
4372 | * Prevent any future allocations. | |
4373 | */ | |
aa755b35 | 4374 | ASSERT3P(tvd->vdev_log_mg, ==, NULL); |
428870ff BB |
4375 | metaslab_group_passivate(mg); |
4376 | (void) spa_vdev_state_exit(spa, vd, 0); | |
4377 | ||
a1d477c2 | 4378 | error = spa_reset_logs(spa); |
428870ff | 4379 | |
d2734cce SD |
4380 | /* |
4381 | * If the log device was successfully reset but has | |
4382 | * checkpointed data, do not offline it. | |
4383 | */ | |
4384 | if (error == 0 && | |
4385 | tvd->vdev_checkpoint_sm != NULL) { | |
425d3237 SD |
4386 | ASSERT3U(space_map_allocated( |
4387 | tvd->vdev_checkpoint_sm), !=, 0); | |
d2734cce SD |
4388 | error = ZFS_ERR_CHECKPOINT_EXISTS; |
4389 | } | |
4390 | ||
428870ff BB |
4391 | spa_vdev_state_enter(spa, SCL_ALLOC); |
4392 | ||
4393 | /* | |
4394 | * Check to see if the config has changed. | |
4395 | */ | |
4396 | if (error || generation != spa->spa_config_generation) { | |
4397 | metaslab_group_activate(mg); | |
4398 | if (error) | |
4399 | return (spa_vdev_state_exit(spa, | |
4400 | vd, error)); | |
4401 | (void) spa_vdev_state_exit(spa, vd, 0); | |
4402 | goto top; | |
4403 | } | |
c99c9001 | 4404 | ASSERT0(tvd->vdev_stat.vs_alloc); |
428870ff BB |
4405 | } |
4406 | ||
34dc7c2f BB |
4407 | /* |
4408 | * Offline this device and reopen its top-level vdev. | |
9babb374 BB |
4409 | * If the top-level vdev is a log device then just offline |
4410 | * it. Otherwise, if this action results in the top-level | |
4411 | * vdev becoming unusable, undo it and fail the request. | |
34dc7c2f BB |
4412 | */ |
4413 | vd->vdev_offline = B_TRUE; | |
9babb374 BB |
4414 | vdev_reopen(tvd); |
4415 | ||
4416 | if (!tvd->vdev_islog && vd->vdev_aux == NULL && | |
4417 | vdev_is_dead(tvd)) { | |
34dc7c2f | 4418 | vd->vdev_offline = B_FALSE; |
9babb374 | 4419 | vdev_reopen(tvd); |
28caa74b MM |
4420 | return (spa_vdev_state_exit(spa, NULL, |
4421 | SET_ERROR(EBUSY))); | |
34dc7c2f | 4422 | } |
428870ff BB |
4423 | |
4424 | /* | |
4425 | * Add the device back into the metaslab rotor so that | |
4426 | * once we online the device it's open for business. | |
4427 | */ | |
4428 | if (tvd->vdev_islog && mg != NULL) | |
4429 | metaslab_group_activate(mg); | |
34dc7c2f BB |
4430 | } |
4431 | ||
b128c09f | 4432 | vd->vdev_tmpoffline = !!(flags & ZFS_OFFLINE_TEMPORARY); |
34dc7c2f | 4433 | |
428870ff BB |
4434 | return (spa_vdev_state_exit(spa, vd, 0)); |
4435 | } | |
9babb374 | 4436 | |
428870ff BB |
4437 | int |
4438 | vdev_offline(spa_t *spa, uint64_t guid, uint64_t flags) | |
4439 | { | |
4440 | int error; | |
9babb374 | 4441 | |
428870ff BB |
4442 | mutex_enter(&spa->spa_vdev_top_lock); |
4443 | error = vdev_offline_locked(spa, guid, flags); | |
4444 | mutex_exit(&spa->spa_vdev_top_lock); | |
4445 | ||
4446 | return (error); | |
34dc7c2f BB |
4447 | } |
4448 | ||
4449 | /* | |
4450 | * Clear the error counts associated with this vdev. Unlike vdev_online() and | |
4451 | * vdev_offline(), we assume the spa config is locked. We also clear all | |
4452 | * children. If 'vd' is NULL, then the user wants to clear all vdevs. | |
34dc7c2f BB |
4453 | */ |
4454 | void | |
b128c09f | 4455 | vdev_clear(spa_t *spa, vdev_t *vd) |
34dc7c2f | 4456 | { |
b128c09f BB |
4457 | vdev_t *rvd = spa->spa_root_vdev; |
4458 | ||
4459 | ASSERT(spa_config_held(spa, SCL_STATE_ALL, RW_WRITER) == SCL_STATE_ALL); | |
34dc7c2f BB |
4460 | |
4461 | if (vd == NULL) | |
b128c09f | 4462 | vd = rvd; |
34dc7c2f BB |
4463 | |
4464 | vd->vdev_stat.vs_read_errors = 0; | |
4465 | vd->vdev_stat.vs_write_errors = 0; | |
4466 | vd->vdev_stat.vs_checksum_errors = 0; | |
ad796b8a | 4467 | vd->vdev_stat.vs_slow_ios = 0; |
34dc7c2f | 4468 | |
1c27024e | 4469 | for (int c = 0; c < vd->vdev_children; c++) |
b128c09f | 4470 | vdev_clear(spa, vd->vdev_child[c]); |
34dc7c2f | 4471 | |
a1d477c2 | 4472 | /* |
e996c502 | 4473 | * It makes no sense to "clear" an indirect or removed vdev. |
a1d477c2 | 4474 | */ |
e996c502 | 4475 | if (!vdev_is_concrete(vd) || vd->vdev_removed) |
a1d477c2 MA |
4476 | return; |
4477 | ||
34dc7c2f | 4478 | /* |
b128c09f BB |
4479 | * If we're in the FAULTED state or have experienced failed I/O, then |
4480 | * clear the persistent state and attempt to reopen the device. We | |
4481 | * also mark the vdev config dirty, so that the new faulted state is | |
4482 | * written out to disk. | |
34dc7c2f | 4483 | */ |
b128c09f BB |
4484 | if (vd->vdev_faulted || vd->vdev_degraded || |
4485 | !vdev_readable(vd) || !vdev_writeable(vd)) { | |
428870ff | 4486 | /* |
4e33ba4c | 4487 | * When reopening in response to a clear event, it may be due to |
428870ff BB |
4488 | * a fmadm repair request. In this case, if the device is |
4489 | * still broken, we want to still post the ereport again. | |
4490 | */ | |
4491 | vd->vdev_forcefault = B_TRUE; | |
4492 | ||
572e2857 | 4493 | vd->vdev_faulted = vd->vdev_degraded = 0ULL; |
b128c09f BB |
4494 | vd->vdev_cant_read = B_FALSE; |
4495 | vd->vdev_cant_write = B_FALSE; | |
4a283c7f | 4496 | vd->vdev_stat.vs_aux = 0; |
b128c09f | 4497 | |
572e2857 | 4498 | vdev_reopen(vd == rvd ? rvd : vd->vdev_top); |
34dc7c2f | 4499 | |
428870ff BB |
4500 | vd->vdev_forcefault = B_FALSE; |
4501 | ||
572e2857 | 4502 | if (vd != rvd && vdev_writeable(vd->vdev_top)) |
b128c09f BB |
4503 | vdev_state_dirty(vd->vdev_top); |
4504 | ||
3c819a2c JP |
4505 | /* If a resilver isn't required, check if vdevs can be culled */ |
4506 | if (vd->vdev_aux == NULL && !vdev_is_dead(vd) && | |
4507 | !dsl_scan_resilvering(spa->spa_dsl_pool) && | |
4508 | !dsl_scan_resilver_scheduled(spa->spa_dsl_pool)) | |
4509 | spa_async_request(spa, SPA_ASYNC_RESILVER_DONE); | |
34dc7c2f | 4510 | |
12fa0466 | 4511 | spa_event_notify(spa, vd, NULL, ESC_ZFS_VDEV_CLEAR); |
34dc7c2f | 4512 | } |
428870ff BB |
4513 | |
4514 | /* | |
4515 | * When clearing a FMA-diagnosed fault, we always want to | |
4516 | * unspare the device, as we assume that the original spare was | |
4517 | * done in response to the FMA fault. | |
4518 | */ | |
4519 | if (!vdev_is_dead(vd) && vd->vdev_parent != NULL && | |
4520 | vd->vdev_parent->vdev_ops == &vdev_spare_ops && | |
4521 | vd->vdev_parent->vdev_child[0] == vd) | |
4522 | vd->vdev_unspare = B_TRUE; | |
03e02e5b DB |
4523 | |
4524 | /* Clear recent error events cache (i.e. duplicate events tracking) */ | |
4525 | zfs_ereport_clear(spa, vd); | |
34dc7c2f BB |
4526 | } |
4527 | ||
b128c09f BB |
4528 | boolean_t |
4529 | vdev_is_dead(vdev_t *vd) | |
4530 | { | |
428870ff BB |
4531 | /* |
4532 | * Holes and missing devices are always considered "dead". | |
4533 | * This simplifies the code since we don't have to check for | |
4534 | * these types of devices in the various code paths. | |
4535 | * Instead we rely on the fact that we skip over dead devices | |
4536 | * before issuing I/O to them. | |
4537 | */ | |
a1d477c2 MA |
4538 | return (vd->vdev_state < VDEV_STATE_DEGRADED || |
4539 | vd->vdev_ops == &vdev_hole_ops || | |
428870ff | 4540 | vd->vdev_ops == &vdev_missing_ops); |
b128c09f BB |
4541 | } |
4542 | ||
4543 | boolean_t | |
34dc7c2f BB |
4544 | vdev_readable(vdev_t *vd) |
4545 | { | |
b128c09f | 4546 | return (!vdev_is_dead(vd) && !vd->vdev_cant_read); |
34dc7c2f BB |
4547 | } |
4548 | ||
b128c09f | 4549 | boolean_t |
34dc7c2f BB |
4550 | vdev_writeable(vdev_t *vd) |
4551 | { | |
a1d477c2 MA |
4552 | return (!vdev_is_dead(vd) && !vd->vdev_cant_write && |
4553 | vdev_is_concrete(vd)); | |
34dc7c2f BB |
4554 | } |
4555 | ||
b128c09f BB |
4556 | boolean_t |
4557 | vdev_allocatable(vdev_t *vd) | |
34dc7c2f | 4558 | { |
fb5f0bc8 BB |
4559 | uint64_t state = vd->vdev_state; |
4560 | ||
b128c09f | 4561 | /* |
fb5f0bc8 | 4562 | * We currently allow allocations from vdevs which may be in the |
b128c09f BB |
4563 | * process of reopening (i.e. VDEV_STATE_CLOSED). If the device |
4564 | * fails to reopen then we'll catch it later when we're holding | |
fb5f0bc8 BB |
4565 | * the proper locks. Note that we have to get the vdev state |
4566 | * in a local variable because although it changes atomically, | |
4567 | * we're asking two separate questions about it. | |
b128c09f | 4568 | */ |
fb5f0bc8 | 4569 | return (!(state < VDEV_STATE_DEGRADED && state != VDEV_STATE_CLOSED) && |
a1d477c2 | 4570 | !vd->vdev_cant_write && vdev_is_concrete(vd) && |
3dfb57a3 | 4571 | vd->vdev_mg->mg_initialized); |
34dc7c2f BB |
4572 | } |
4573 | ||
b128c09f BB |
4574 | boolean_t |
4575 | vdev_accessible(vdev_t *vd, zio_t *zio) | |
34dc7c2f | 4576 | { |
b128c09f | 4577 | ASSERT(zio->io_vd == vd); |
34dc7c2f | 4578 | |
b128c09f BB |
4579 | if (vdev_is_dead(vd) || vd->vdev_remove_wanted) |
4580 | return (B_FALSE); | |
34dc7c2f | 4581 | |
b128c09f BB |
4582 | if (zio->io_type == ZIO_TYPE_READ) |
4583 | return (!vd->vdev_cant_read); | |
34dc7c2f | 4584 | |
b128c09f BB |
4585 | if (zio->io_type == ZIO_TYPE_WRITE) |
4586 | return (!vd->vdev_cant_write); | |
34dc7c2f | 4587 | |
b128c09f | 4588 | return (B_TRUE); |
34dc7c2f BB |
4589 | } |
4590 | ||
193a37cb TH |
4591 | static void |
4592 | vdev_get_child_stat(vdev_t *cvd, vdev_stat_t *vs, vdev_stat_t *cvs) | |
34dc7c2f | 4593 | { |
b2255edc BB |
4594 | /* |
4595 | * Exclude the dRAID spare when aggregating to avoid double counting | |
4596 | * the ops and bytes. These IOs are counted by the physical leaves. | |
4597 | */ | |
4598 | if (cvd->vdev_ops == &vdev_draid_spare_ops) | |
4599 | return; | |
4600 | ||
1b939560 | 4601 | for (int t = 0; t < VS_ZIO_TYPES; t++) { |
193a37cb TH |
4602 | vs->vs_ops[t] += cvs->vs_ops[t]; |
4603 | vs->vs_bytes[t] += cvs->vs_bytes[t]; | |
4604 | } | |
34dc7c2f | 4605 | |
193a37cb TH |
4606 | cvs->vs_scan_removing = cvd->vdev_removing; |
4607 | } | |
f3a7f661 | 4608 | |
193a37cb TH |
4609 | /* |
4610 | * Get extended stats | |
4611 | */ | |
4612 | static void | |
4613 | vdev_get_child_stat_ex(vdev_t *cvd, vdev_stat_ex_t *vsx, vdev_stat_ex_t *cvsx) | |
4614 | { | |
14e4e3cb AZ |
4615 | (void) cvd; |
4616 | ||
193a37cb TH |
4617 | int t, b; |
4618 | for (t = 0; t < ZIO_TYPES; t++) { | |
7e945072 | 4619 | for (b = 0; b < ARRAY_SIZE(vsx->vsx_disk_histo[0]); b++) |
193a37cb | 4620 | vsx->vsx_disk_histo[t][b] += cvsx->vsx_disk_histo[t][b]; |
7e945072 TH |
4621 | |
4622 | for (b = 0; b < ARRAY_SIZE(vsx->vsx_total_histo[0]); b++) { | |
193a37cb TH |
4623 | vsx->vsx_total_histo[t][b] += |
4624 | cvsx->vsx_total_histo[t][b]; | |
4625 | } | |
f38dfec3 | 4626 | } |
34dc7c2f | 4627 | |
193a37cb | 4628 | for (t = 0; t < ZIO_PRIORITY_NUM_QUEUEABLE; t++) { |
7e945072 | 4629 | for (b = 0; b < ARRAY_SIZE(vsx->vsx_queue_histo[0]); b++) { |
193a37cb TH |
4630 | vsx->vsx_queue_histo[t][b] += |
4631 | cvsx->vsx_queue_histo[t][b]; | |
4632 | } | |
4633 | vsx->vsx_active_queue[t] += cvsx->vsx_active_queue[t]; | |
4634 | vsx->vsx_pend_queue[t] += cvsx->vsx_pend_queue[t]; | |
7e945072 TH |
4635 | |
4636 | for (b = 0; b < ARRAY_SIZE(vsx->vsx_ind_histo[0]); b++) | |
4637 | vsx->vsx_ind_histo[t][b] += cvsx->vsx_ind_histo[t][b]; | |
4638 | ||
4639 | for (b = 0; b < ARRAY_SIZE(vsx->vsx_agg_histo[0]); b++) | |
4640 | vsx->vsx_agg_histo[t][b] += cvsx->vsx_agg_histo[t][b]; | |
193a37cb | 4641 | } |
7e945072 | 4642 | |
193a37cb TH |
4643 | } |
4644 | ||
d2734cce SD |
4645 | boolean_t |
4646 | vdev_is_spacemap_addressable(vdev_t *vd) | |
4647 | { | |
419ba591 SD |
4648 | if (spa_feature_is_active(vd->vdev_spa, SPA_FEATURE_SPACEMAP_V2)) |
4649 | return (B_TRUE); | |
4650 | ||
d2734cce | 4651 | /* |
419ba591 SD |
4652 | * If double-word space map entries are not enabled we assume |
4653 | * 47 bits of the space map entry are dedicated to the entry's | |
4654 | * offset (see SM_OFFSET_BITS in space_map.h). We then use that | |
4655 | * to calculate the maximum address that can be described by a | |
4656 | * space map entry for the given device. | |
d2734cce | 4657 | */ |
419ba591 | 4658 | uint64_t shift = vd->vdev_ashift + SM_OFFSET_BITS; |
d2734cce SD |
4659 | |
4660 | if (shift >= 63) /* detect potential overflow */ | |
4661 | return (B_TRUE); | |
4662 | ||
4663 | return (vd->vdev_asize < (1ULL << shift)); | |
4664 | } | |
4665 | ||
193a37cb TH |
4666 | /* |
4667 | * Get statistics for the given vdev. | |
4668 | */ | |
4669 | static void | |
4670 | vdev_get_stats_ex_impl(vdev_t *vd, vdev_stat_t *vs, vdev_stat_ex_t *vsx) | |
4671 | { | |
1c27024e | 4672 | int t; |
34dc7c2f BB |
4673 | /* |
4674 | * If we're getting stats on the root vdev, aggregate the I/O counts | |
4675 | * over all top-level vdevs (i.e. the direct children of the root). | |
4676 | */ | |
193a37cb TH |
4677 | if (!vd->vdev_ops->vdev_op_leaf) { |
4678 | if (vs) { | |
4679 | memset(vs->vs_ops, 0, sizeof (vs->vs_ops)); | |
4680 | memset(vs->vs_bytes, 0, sizeof (vs->vs_bytes)); | |
4681 | } | |
4682 | if (vsx) | |
4683 | memset(vsx, 0, sizeof (*vsx)); | |
4684 | ||
1c27024e | 4685 | for (int c = 0; c < vd->vdev_children; c++) { |
193a37cb | 4686 | vdev_t *cvd = vd->vdev_child[c]; |
34dc7c2f | 4687 | vdev_stat_t *cvs = &cvd->vdev_stat; |
193a37cb TH |
4688 | vdev_stat_ex_t *cvsx = &cvd->vdev_stat_ex; |
4689 | ||
4690 | vdev_get_stats_ex_impl(cvd, cvs, cvsx); | |
4691 | if (vs) | |
4692 | vdev_get_child_stat(cvd, vs, cvs); | |
4693 | if (vsx) | |
4694 | vdev_get_child_stat_ex(cvd, vsx, cvsx); | |
193a37cb TH |
4695 | } |
4696 | } else { | |
4697 | /* | |
4698 | * We're a leaf. Just copy our ZIO active queue stats in. The | |
4699 | * other leaf stats are updated in vdev_stat_update(). | |
4700 | */ | |
4701 | if (!vsx) | |
4702 | return; | |
4703 | ||
4704 | memcpy(vsx, &vd->vdev_stat_ex, sizeof (vd->vdev_stat_ex)); | |
4705 | ||
8469b5aa AM |
4706 | for (t = 0; t < ZIO_PRIORITY_NUM_QUEUEABLE; t++) { |
4707 | vsx->vsx_active_queue[t] = vd->vdev_queue.vq_cactive[t]; | |
4708 | vsx->vsx_pend_queue[t] = vdev_queue_class_length(vd, t); | |
34dc7c2f BB |
4709 | } |
4710 | } | |
193a37cb TH |
4711 | } |
4712 | ||
4713 | void | |
4714 | vdev_get_stats_ex(vdev_t *vd, vdev_stat_t *vs, vdev_stat_ex_t *vsx) | |
4715 | { | |
0f676dc2 | 4716 | vdev_t *tvd = vd->vdev_top; |
193a37cb TH |
4717 | mutex_enter(&vd->vdev_stat_lock); |
4718 | if (vs) { | |
861166b0 | 4719 | memcpy(vs, &vd->vdev_stat, sizeof (*vs)); |
193a37cb TH |
4720 | vs->vs_timestamp = gethrtime() - vs->vs_timestamp; |
4721 | vs->vs_state = vd->vdev_state; | |
4722 | vs->vs_rsize = vdev_get_min_asize(vd); | |
9a49d3f3 | 4723 | |
619f0976 | 4724 | if (vd->vdev_ops->vdev_op_leaf) { |
1282274f | 4725 | vs->vs_pspace = vd->vdev_psize; |
193a37cb TH |
4726 | vs->vs_rsize += VDEV_LABEL_START_SIZE + |
4727 | VDEV_LABEL_END_SIZE; | |
619f0976 | 4728 | /* |
1b939560 | 4729 | * Report initializing progress. Since we don't |
619f0976 GW |
4730 | * have the initializing locks held, this is only |
4731 | * an estimate (although a fairly accurate one). | |
4732 | */ | |
4733 | vs->vs_initialize_bytes_done = | |
4734 | vd->vdev_initialize_bytes_done; | |
4735 | vs->vs_initialize_bytes_est = | |
4736 | vd->vdev_initialize_bytes_est; | |
4737 | vs->vs_initialize_state = vd->vdev_initialize_state; | |
4738 | vs->vs_initialize_action_time = | |
4739 | vd->vdev_initialize_action_time; | |
1b939560 BB |
4740 | |
4741 | /* | |
4742 | * Report manual TRIM progress. Since we don't have | |
4743 | * the manual TRIM locks held, this is only an | |
4744 | * estimate (although fairly accurate one). | |
4745 | */ | |
4746 | vs->vs_trim_notsup = !vd->vdev_has_trim; | |
4747 | vs->vs_trim_bytes_done = vd->vdev_trim_bytes_done; | |
4748 | vs->vs_trim_bytes_est = vd->vdev_trim_bytes_est; | |
4749 | vs->vs_trim_state = vd->vdev_trim_state; | |
4750 | vs->vs_trim_action_time = vd->vdev_trim_action_time; | |
9a49d3f3 BB |
4751 | |
4752 | /* Set when there is a deferred resilver. */ | |
4753 | vs->vs_resilver_deferred = vd->vdev_resilver_deferred; | |
619f0976 | 4754 | } |
9a49d3f3 | 4755 | |
0f676dc2 | 4756 | /* |
1b939560 | 4757 | * Report expandable space on top-level, non-auxiliary devices |
0f676dc2 GM |
4758 | * only. The expandable space is reported in terms of metaslab |
4759 | * sized units since that determines how much space the pool | |
4760 | * can expand. | |
4761 | */ | |
4762 | if (vd->vdev_aux == NULL && tvd != NULL) { | |
4763 | vs->vs_esize = P2ALIGN( | |
4764 | vd->vdev_max_asize - vd->vdev_asize, | |
4765 | 1ULL << tvd->vdev_ms_shift); | |
4766 | } | |
9a49d3f3 | 4767 | |
6fe3498c RM |
4768 | vs->vs_configured_ashift = vd->vdev_top != NULL |
4769 | ? vd->vdev_top->vdev_ashift : vd->vdev_ashift; | |
4770 | vs->vs_logical_ashift = vd->vdev_logical_ashift; | |
37f6845c AM |
4771 | if (vd->vdev_physical_ashift <= ASHIFT_MAX) |
4772 | vs->vs_physical_ashift = vd->vdev_physical_ashift; | |
4773 | else | |
4774 | vs->vs_physical_ashift = 0; | |
6fe3498c | 4775 | |
9a49d3f3 BB |
4776 | /* |
4777 | * Report fragmentation and rebuild progress for top-level, | |
4778 | * non-auxiliary, concrete devices. | |
4779 | */ | |
193a37cb | 4780 | if (vd->vdev_aux == NULL && vd == vd->vdev_top && |
a1d477c2 | 4781 | vdev_is_concrete(vd)) { |
aa755b35 MA |
4782 | /* |
4783 | * The vdev fragmentation rating doesn't take into | |
4784 | * account the embedded slog metaslab (vdev_log_mg). | |
4785 | * Since it's only one metaslab, it would have a tiny | |
4786 | * impact on the overall fragmentation. | |
4787 | */ | |
cc99f275 DB |
4788 | vs->vs_fragmentation = (vd->vdev_mg != NULL) ? |
4789 | vd->vdev_mg->mg_fragmentation : 0; | |
193a37cb | 4790 | } |
2a673e76 AJ |
4791 | vs->vs_noalloc = MAX(vd->vdev_noalloc, |
4792 | tvd ? tvd->vdev_noalloc : 0); | |
193a37cb TH |
4793 | } |
4794 | ||
193a37cb | 4795 | vdev_get_stats_ex_impl(vd, vs, vsx); |
f3a7f661 | 4796 | mutex_exit(&vd->vdev_stat_lock); |
34dc7c2f BB |
4797 | } |
4798 | ||
193a37cb TH |
4799 | void |
4800 | vdev_get_stats(vdev_t *vd, vdev_stat_t *vs) | |
4801 | { | |
4802 | return (vdev_get_stats_ex(vd, vs, NULL)); | |
4803 | } | |
4804 | ||
34dc7c2f BB |
4805 | void |
4806 | vdev_clear_stats(vdev_t *vd) | |
4807 | { | |
4808 | mutex_enter(&vd->vdev_stat_lock); | |
4809 | vd->vdev_stat.vs_space = 0; | |
4810 | vd->vdev_stat.vs_dspace = 0; | |
4811 | vd->vdev_stat.vs_alloc = 0; | |
4812 | mutex_exit(&vd->vdev_stat_lock); | |
4813 | } | |
4814 | ||
428870ff BB |
4815 | void |
4816 | vdev_scan_stat_init(vdev_t *vd) | |
4817 | { | |
4818 | vdev_stat_t *vs = &vd->vdev_stat; | |
4819 | ||
1c27024e | 4820 | for (int c = 0; c < vd->vdev_children; c++) |
428870ff BB |
4821 | vdev_scan_stat_init(vd->vdev_child[c]); |
4822 | ||
4823 | mutex_enter(&vd->vdev_stat_lock); | |
4824 | vs->vs_scan_processed = 0; | |
4825 | mutex_exit(&vd->vdev_stat_lock); | |
4826 | } | |
4827 | ||
34dc7c2f | 4828 | void |
b128c09f | 4829 | vdev_stat_update(zio_t *zio, uint64_t psize) |
34dc7c2f | 4830 | { |
fb5f0bc8 BB |
4831 | spa_t *spa = zio->io_spa; |
4832 | vdev_t *rvd = spa->spa_root_vdev; | |
b128c09f | 4833 | vdev_t *vd = zio->io_vd ? zio->io_vd : rvd; |
34dc7c2f BB |
4834 | vdev_t *pvd; |
4835 | uint64_t txg = zio->io_txg; | |
950980b4 RY |
4836 | /* Suppress ASAN false positive */ |
4837 | #ifdef __SANITIZE_ADDRESS__ | |
63652e15 DS |
4838 | vdev_stat_t *vs = vd ? &vd->vdev_stat : NULL; |
4839 | vdev_stat_ex_t *vsx = vd ? &vd->vdev_stat_ex : NULL; | |
950980b4 RY |
4840 | #else |
4841 | vdev_stat_t *vs = &vd->vdev_stat; | |
4842 | vdev_stat_ex_t *vsx = &vd->vdev_stat_ex; | |
4843 | #endif | |
34dc7c2f BB |
4844 | zio_type_t type = zio->io_type; |
4845 | int flags = zio->io_flags; | |
4846 | ||
b128c09f BB |
4847 | /* |
4848 | * If this i/o is a gang leader, it didn't do any actual work. | |
4849 | */ | |
4850 | if (zio->io_gang_tree) | |
4851 | return; | |
4852 | ||
34dc7c2f | 4853 | if (zio->io_error == 0) { |
b128c09f BB |
4854 | /* |
4855 | * If this is a root i/o, don't count it -- we've already | |
4856 | * counted the top-level vdevs, and vdev_get_stats() will | |
4857 | * aggregate them when asked. This reduces contention on | |
4858 | * the root vdev_stat_lock and implicitly handles blocks | |
4859 | * that compress away to holes, for which there is no i/o. | |
4860 | * (Holes never create vdev children, so all the counters | |
4861 | * remain zero, which is what we want.) | |
4862 | * | |
4863 | * Note: this only applies to successful i/o (io_error == 0) | |
4864 | * because unlike i/o counts, errors are not additive. | |
4865 | * When reading a ditto block, for example, failure of | |
4866 | * one top-level vdev does not imply a root-level error. | |
4867 | */ | |
4868 | if (vd == rvd) | |
4869 | return; | |
4870 | ||
4871 | ASSERT(vd == zio->io_vd); | |
fb5f0bc8 BB |
4872 | |
4873 | if (flags & ZIO_FLAG_IO_BYPASS) | |
4874 | return; | |
4875 | ||
4876 | mutex_enter(&vd->vdev_stat_lock); | |
4877 | ||
b128c09f | 4878 | if (flags & ZIO_FLAG_IO_REPAIR) { |
9a49d3f3 BB |
4879 | /* |
4880 | * Repair is the result of a resilver issued by the | |
4881 | * scan thread (spa_sync). | |
4882 | */ | |
572e2857 | 4883 | if (flags & ZIO_FLAG_SCAN_THREAD) { |
9a49d3f3 BB |
4884 | dsl_scan_t *scn = spa->spa_dsl_pool->dp_scan; |
4885 | dsl_scan_phys_t *scn_phys = &scn->scn_phys; | |
428870ff BB |
4886 | uint64_t *processed = &scn_phys->scn_processed; |
4887 | ||
428870ff BB |
4888 | if (vd->vdev_ops->vdev_op_leaf) |
4889 | atomic_add_64(processed, psize); | |
4890 | vs->vs_scan_processed += psize; | |
4891 | } | |
4892 | ||
9a49d3f3 BB |
4893 | /* |
4894 | * Repair is the result of a rebuild issued by the | |
b2255edc BB |
4895 | * rebuild thread (vdev_rebuild_thread). To avoid |
4896 | * double counting repaired bytes the virtual dRAID | |
4897 | * spare vdev is excluded from the processed bytes. | |
9a49d3f3 BB |
4898 | */ |
4899 | if (zio->io_priority == ZIO_PRIORITY_REBUILD) { | |
4900 | vdev_t *tvd = vd->vdev_top; | |
4901 | vdev_rebuild_t *vr = &tvd->vdev_rebuild_config; | |
4902 | vdev_rebuild_phys_t *vrp = &vr->vr_rebuild_phys; | |
4903 | uint64_t *rebuilt = &vrp->vrp_bytes_rebuilt; | |
4904 | ||
b2255edc BB |
4905 | if (vd->vdev_ops->vdev_op_leaf && |
4906 | vd->vdev_ops != &vdev_draid_spare_ops) { | |
9a49d3f3 | 4907 | atomic_add_64(rebuilt, psize); |
b2255edc | 4908 | } |
9a49d3f3 BB |
4909 | vs->vs_rebuild_processed += psize; |
4910 | } | |
4911 | ||
fb5f0bc8 | 4912 | if (flags & ZIO_FLAG_SELF_HEAL) |
b128c09f | 4913 | vs->vs_self_healed += psize; |
34dc7c2f | 4914 | } |
fb5f0bc8 | 4915 | |
193a37cb TH |
4916 | /* |
4917 | * The bytes/ops/histograms are recorded at the leaf level and | |
4918 | * aggregated into the higher level vdevs in vdev_get_stats(). | |
4919 | */ | |
4eb0db42 TH |
4920 | if (vd->vdev_ops->vdev_op_leaf && |
4921 | (zio->io_priority < ZIO_PRIORITY_NUM_QUEUEABLE)) { | |
1b939560 | 4922 | zio_type_t vs_type = type; |
9a49d3f3 | 4923 | zio_priority_t priority = zio->io_priority; |
1b939560 BB |
4924 | |
4925 | /* | |
4926 | * TRIM ops and bytes are reported to user space as | |
4927 | * ZIO_TYPE_IOCTL. This is done to preserve the | |
4928 | * vdev_stat_t structure layout for user space. | |
4929 | */ | |
4930 | if (type == ZIO_TYPE_TRIM) | |
4931 | vs_type = ZIO_TYPE_IOCTL; | |
193a37cb | 4932 | |
9a49d3f3 BB |
4933 | /* |
4934 | * Solely for the purposes of 'zpool iostat -lqrw' | |
bf169e9f | 4935 | * reporting use the priority to categorize the IO. |
9a49d3f3 BB |
4936 | * Only the following are reported to user space: |
4937 | * | |
4938 | * ZIO_PRIORITY_SYNC_READ, | |
4939 | * ZIO_PRIORITY_SYNC_WRITE, | |
4940 | * ZIO_PRIORITY_ASYNC_READ, | |
4941 | * ZIO_PRIORITY_ASYNC_WRITE, | |
4942 | * ZIO_PRIORITY_SCRUB, | |
00888c08 TB |
4943 | * ZIO_PRIORITY_TRIM, |
4944 | * ZIO_PRIORITY_REBUILD. | |
9a49d3f3 | 4945 | */ |
00888c08 | 4946 | if (priority == ZIO_PRIORITY_INITIALIZING) { |
9a49d3f3 BB |
4947 | ASSERT3U(type, ==, ZIO_TYPE_WRITE); |
4948 | priority = ZIO_PRIORITY_ASYNC_WRITE; | |
4949 | } else if (priority == ZIO_PRIORITY_REMOVAL) { | |
4950 | priority = ((type == ZIO_TYPE_WRITE) ? | |
4951 | ZIO_PRIORITY_ASYNC_WRITE : | |
4952 | ZIO_PRIORITY_ASYNC_READ); | |
4953 | } | |
4954 | ||
1b939560 BB |
4955 | vs->vs_ops[vs_type]++; |
4956 | vs->vs_bytes[vs_type] += psize; | |
193a37cb | 4957 | |
7e945072 | 4958 | if (flags & ZIO_FLAG_DELEGATED) { |
9a49d3f3 | 4959 | vsx->vsx_agg_histo[priority] |
7e945072 TH |
4960 | [RQ_HISTO(zio->io_size)]++; |
4961 | } else { | |
9a49d3f3 | 4962 | vsx->vsx_ind_histo[priority] |
7e945072 TH |
4963 | [RQ_HISTO(zio->io_size)]++; |
4964 | } | |
4965 | ||
193a37cb | 4966 | if (zio->io_delta && zio->io_delay) { |
9a49d3f3 | 4967 | vsx->vsx_queue_histo[priority] |
7e945072 | 4968 | [L_HISTO(zio->io_delta - zio->io_delay)]++; |
193a37cb | 4969 | vsx->vsx_disk_histo[type] |
7e945072 | 4970 | [L_HISTO(zio->io_delay)]++; |
193a37cb | 4971 | vsx->vsx_total_histo[type] |
7e945072 | 4972 | [L_HISTO(zio->io_delta)]++; |
193a37cb TH |
4973 | } |
4974 | } | |
fb5f0bc8 BB |
4975 | |
4976 | mutex_exit(&vd->vdev_stat_lock); | |
34dc7c2f BB |
4977 | return; |
4978 | } | |
4979 | ||
4980 | if (flags & ZIO_FLAG_SPECULATIVE) | |
4981 | return; | |
4982 | ||
9babb374 BB |
4983 | /* |
4984 | * If this is an I/O error that is going to be retried, then ignore the | |
4985 | * error. Otherwise, the user may interpret B_FAILFAST I/O errors as | |
4986 | * hard errors, when in reality they can happen for any number of | |
4987 | * innocuous reasons (bus resets, MPxIO link failure, etc). | |
4988 | */ | |
4989 | if (zio->io_error == EIO && | |
4990 | !(zio->io_flags & ZIO_FLAG_IO_RETRY)) | |
4991 | return; | |
4992 | ||
428870ff BB |
4993 | /* |
4994 | * Intent logs writes won't propagate their error to the root | |
4995 | * I/O so don't mark these types of failures as pool-level | |
4996 | * errors. | |
4997 | */ | |
4998 | if (zio->io_vd == NULL && (zio->io_flags & ZIO_FLAG_DONT_PROPAGATE)) | |
4999 | return; | |
5000 | ||
4d0ba941 | 5001 | if (type == ZIO_TYPE_WRITE && txg != 0 && |
fb5f0bc8 | 5002 | (!(flags & ZIO_FLAG_IO_REPAIR) || |
572e2857 | 5003 | (flags & ZIO_FLAG_SCAN_THREAD) || |
428870ff | 5004 | spa->spa_claiming)) { |
fb5f0bc8 | 5005 | /* |
428870ff BB |
5006 | * This is either a normal write (not a repair), or it's |
5007 | * a repair induced by the scrub thread, or it's a repair | |
5008 | * made by zil_claim() during spa_load() in the first txg. | |
5009 | * In the normal case, we commit the DTL change in the same | |
5010 | * txg as the block was born. In the scrub-induced repair | |
5011 | * case, we know that scrubs run in first-pass syncing context, | |
5012 | * so we commit the DTL change in spa_syncing_txg(spa). | |
5013 | * In the zil_claim() case, we commit in spa_first_txg(spa). | |
fb5f0bc8 BB |
5014 | * |
5015 | * We currently do not make DTL entries for failed spontaneous | |
5016 | * self-healing writes triggered by normal (non-scrubbing) | |
5017 | * reads, because we have no transactional context in which to | |
5018 | * do so -- and it's not clear that it'd be desirable anyway. | |
5019 | */ | |
5020 | if (vd->vdev_ops->vdev_op_leaf) { | |
5021 | uint64_t commit_txg = txg; | |
572e2857 | 5022 | if (flags & ZIO_FLAG_SCAN_THREAD) { |
fb5f0bc8 BB |
5023 | ASSERT(flags & ZIO_FLAG_IO_REPAIR); |
5024 | ASSERT(spa_sync_pass(spa) == 1); | |
5025 | vdev_dtl_dirty(vd, DTL_SCRUB, txg, 1); | |
428870ff BB |
5026 | commit_txg = spa_syncing_txg(spa); |
5027 | } else if (spa->spa_claiming) { | |
5028 | ASSERT(flags & ZIO_FLAG_IO_REPAIR); | |
5029 | commit_txg = spa_first_txg(spa); | |
fb5f0bc8 | 5030 | } |
428870ff | 5031 | ASSERT(commit_txg >= spa_syncing_txg(spa)); |
fb5f0bc8 | 5032 | if (vdev_dtl_contains(vd, DTL_MISSING, txg, 1)) |
34dc7c2f | 5033 | return; |
fb5f0bc8 BB |
5034 | for (pvd = vd; pvd != rvd; pvd = pvd->vdev_parent) |
5035 | vdev_dtl_dirty(pvd, DTL_PARTIAL, txg, 1); | |
5036 | vdev_dirty(vd->vdev_top, VDD_DTL, vd, commit_txg); | |
34dc7c2f | 5037 | } |
fb5f0bc8 BB |
5038 | if (vd != rvd) |
5039 | vdev_dtl_dirty(vd, DTL_MISSING, txg, 1); | |
34dc7c2f BB |
5040 | } |
5041 | } | |
5042 | ||
cc99f275 DB |
5043 | int64_t |
5044 | vdev_deflated_space(vdev_t *vd, int64_t space) | |
5045 | { | |
5046 | ASSERT((space & (SPA_MINBLOCKSIZE-1)) == 0); | |
5047 | ASSERT(vd->vdev_deflate_ratio != 0 || vd->vdev_isl2cache); | |
5048 | ||
5049 | return ((space >> SPA_MINBLOCKSHIFT) * vd->vdev_deflate_ratio); | |
5050 | } | |
5051 | ||
34dc7c2f | 5052 | /* |
1b939560 BB |
5053 | * Update the in-core space usage stats for this vdev, its metaslab class, |
5054 | * and the root vdev. | |
34dc7c2f BB |
5055 | */ |
5056 | void | |
428870ff BB |
5057 | vdev_space_update(vdev_t *vd, int64_t alloc_delta, int64_t defer_delta, |
5058 | int64_t space_delta) | |
34dc7c2f | 5059 | { |
14e4e3cb | 5060 | (void) defer_delta; |
cc99f275 | 5061 | int64_t dspace_delta; |
34dc7c2f BB |
5062 | spa_t *spa = vd->vdev_spa; |
5063 | vdev_t *rvd = spa->spa_root_vdev; | |
5064 | ||
5065 | ASSERT(vd == vd->vdev_top); | |
5066 | ||
5067 | /* | |
5068 | * Apply the inverse of the psize-to-asize (ie. RAID-Z) space-expansion | |
5069 | * factor. We must calculate this here and not at the root vdev | |
5070 | * because the root vdev's psize-to-asize is simply the max of its | |
e1cfd73f | 5071 | * children's, thus not accurate enough for us. |
34dc7c2f | 5072 | */ |
cc99f275 | 5073 | dspace_delta = vdev_deflated_space(vd, space_delta); |
34dc7c2f BB |
5074 | |
5075 | mutex_enter(&vd->vdev_stat_lock); | |
7558997d SD |
5076 | /* ensure we won't underflow */ |
5077 | if (alloc_delta < 0) { | |
5078 | ASSERT3U(vd->vdev_stat.vs_alloc, >=, -alloc_delta); | |
5079 | } | |
5080 | ||
34dc7c2f | 5081 | vd->vdev_stat.vs_alloc += alloc_delta; |
428870ff | 5082 | vd->vdev_stat.vs_space += space_delta; |
34dc7c2f BB |
5083 | vd->vdev_stat.vs_dspace += dspace_delta; |
5084 | mutex_exit(&vd->vdev_stat_lock); | |
5085 | ||
cc99f275 DB |
5086 | /* every class but log contributes to root space stats */ |
5087 | if (vd->vdev_mg != NULL && !vd->vdev_islog) { | |
7558997d | 5088 | ASSERT(!vd->vdev_isl2cache); |
34dc7c2f | 5089 | mutex_enter(&rvd->vdev_stat_lock); |
34dc7c2f | 5090 | rvd->vdev_stat.vs_alloc += alloc_delta; |
428870ff | 5091 | rvd->vdev_stat.vs_space += space_delta; |
34dc7c2f BB |
5092 | rvd->vdev_stat.vs_dspace += dspace_delta; |
5093 | mutex_exit(&rvd->vdev_stat_lock); | |
5094 | } | |
cc99f275 | 5095 | /* Note: metaslab_class_space_update moved to metaslab_space_update */ |
34dc7c2f BB |
5096 | } |
5097 | ||
5098 | /* | |
5099 | * Mark a top-level vdev's config as dirty, placing it on the dirty list | |
5100 | * so that it will be written out next time the vdev configuration is synced. | |
5101 | * If the root vdev is specified (vdev_top == NULL), dirty all top-level vdevs. | |
5102 | */ | |
5103 | void | |
5104 | vdev_config_dirty(vdev_t *vd) | |
5105 | { | |
5106 | spa_t *spa = vd->vdev_spa; | |
5107 | vdev_t *rvd = spa->spa_root_vdev; | |
5108 | int c; | |
5109 | ||
572e2857 BB |
5110 | ASSERT(spa_writeable(spa)); |
5111 | ||
34dc7c2f | 5112 | /* |
9babb374 BB |
5113 | * If this is an aux vdev (as with l2cache and spare devices), then we |
5114 | * update the vdev config manually and set the sync flag. | |
b128c09f BB |
5115 | */ |
5116 | if (vd->vdev_aux != NULL) { | |
5117 | spa_aux_vdev_t *sav = vd->vdev_aux; | |
5118 | nvlist_t **aux; | |
5119 | uint_t naux; | |
5120 | ||
5121 | for (c = 0; c < sav->sav_count; c++) { | |
5122 | if (sav->sav_vdevs[c] == vd) | |
5123 | break; | |
5124 | } | |
5125 | ||
5126 | if (c == sav->sav_count) { | |
5127 | /* | |
5128 | * We're being removed. There's nothing more to do. | |
5129 | */ | |
5130 | ASSERT(sav->sav_sync == B_TRUE); | |
5131 | return; | |
5132 | } | |
5133 | ||
5134 | sav->sav_sync = B_TRUE; | |
5135 | ||
9babb374 BB |
5136 | if (nvlist_lookup_nvlist_array(sav->sav_config, |
5137 | ZPOOL_CONFIG_L2CACHE, &aux, &naux) != 0) { | |
5138 | VERIFY(nvlist_lookup_nvlist_array(sav->sav_config, | |
5139 | ZPOOL_CONFIG_SPARES, &aux, &naux) == 0); | |
5140 | } | |
b128c09f BB |
5141 | |
5142 | ASSERT(c < naux); | |
5143 | ||
5144 | /* | |
5145 | * Setting the nvlist in the middle if the array is a little | |
5146 | * sketchy, but it will work. | |
5147 | */ | |
5148 | nvlist_free(aux[c]); | |
428870ff | 5149 | aux[c] = vdev_config_generate(spa, vd, B_TRUE, 0); |
b128c09f BB |
5150 | |
5151 | return; | |
5152 | } | |
5153 | ||
5154 | /* | |
5155 | * The dirty list is protected by the SCL_CONFIG lock. The caller | |
5156 | * must either hold SCL_CONFIG as writer, or must be the sync thread | |
5157 | * (which holds SCL_CONFIG as reader). There's only one sync thread, | |
34dc7c2f BB |
5158 | * so this is sufficient to ensure mutual exclusion. |
5159 | */ | |
b128c09f BB |
5160 | ASSERT(spa_config_held(spa, SCL_CONFIG, RW_WRITER) || |
5161 | (dsl_pool_sync_context(spa_get_dsl(spa)) && | |
5162 | spa_config_held(spa, SCL_CONFIG, RW_READER))); | |
34dc7c2f BB |
5163 | |
5164 | if (vd == rvd) { | |
5165 | for (c = 0; c < rvd->vdev_children; c++) | |
5166 | vdev_config_dirty(rvd->vdev_child[c]); | |
5167 | } else { | |
5168 | ASSERT(vd == vd->vdev_top); | |
5169 | ||
428870ff | 5170 | if (!list_link_active(&vd->vdev_config_dirty_node) && |
a1d477c2 | 5171 | vdev_is_concrete(vd)) { |
b128c09f | 5172 | list_insert_head(&spa->spa_config_dirty_list, vd); |
a1d477c2 | 5173 | } |
34dc7c2f BB |
5174 | } |
5175 | } | |
5176 | ||
5177 | void | |
5178 | vdev_config_clean(vdev_t *vd) | |
5179 | { | |
5180 | spa_t *spa = vd->vdev_spa; | |
5181 | ||
b128c09f BB |
5182 | ASSERT(spa_config_held(spa, SCL_CONFIG, RW_WRITER) || |
5183 | (dsl_pool_sync_context(spa_get_dsl(spa)) && | |
5184 | spa_config_held(spa, SCL_CONFIG, RW_READER))); | |
34dc7c2f | 5185 | |
b128c09f BB |
5186 | ASSERT(list_link_active(&vd->vdev_config_dirty_node)); |
5187 | list_remove(&spa->spa_config_dirty_list, vd); | |
34dc7c2f BB |
5188 | } |
5189 | ||
b128c09f BB |
5190 | /* |
5191 | * Mark a top-level vdev's state as dirty, so that the next pass of | |
5192 | * spa_sync() can convert this into vdev_config_dirty(). We distinguish | |
5193 | * the state changes from larger config changes because they require | |
5194 | * much less locking, and are often needed for administrative actions. | |
5195 | */ | |
5196 | void | |
5197 | vdev_state_dirty(vdev_t *vd) | |
5198 | { | |
5199 | spa_t *spa = vd->vdev_spa; | |
5200 | ||
572e2857 | 5201 | ASSERT(spa_writeable(spa)); |
b128c09f BB |
5202 | ASSERT(vd == vd->vdev_top); |
5203 | ||
5204 | /* | |
5205 | * The state list is protected by the SCL_STATE lock. The caller | |
5206 | * must either hold SCL_STATE as writer, or must be the sync thread | |
5207 | * (which holds SCL_STATE as reader). There's only one sync thread, | |
5208 | * so this is sufficient to ensure mutual exclusion. | |
5209 | */ | |
5210 | ASSERT(spa_config_held(spa, SCL_STATE, RW_WRITER) || | |
5211 | (dsl_pool_sync_context(spa_get_dsl(spa)) && | |
5212 | spa_config_held(spa, SCL_STATE, RW_READER))); | |
5213 | ||
a1d477c2 MA |
5214 | if (!list_link_active(&vd->vdev_state_dirty_node) && |
5215 | vdev_is_concrete(vd)) | |
b128c09f BB |
5216 | list_insert_head(&spa->spa_state_dirty_list, vd); |
5217 | } | |
5218 | ||
5219 | void | |
5220 | vdev_state_clean(vdev_t *vd) | |
5221 | { | |
5222 | spa_t *spa = vd->vdev_spa; | |
5223 | ||
5224 | ASSERT(spa_config_held(spa, SCL_STATE, RW_WRITER) || | |
5225 | (dsl_pool_sync_context(spa_get_dsl(spa)) && | |
5226 | spa_config_held(spa, SCL_STATE, RW_READER))); | |
5227 | ||
5228 | ASSERT(list_link_active(&vd->vdev_state_dirty_node)); | |
5229 | list_remove(&spa->spa_state_dirty_list, vd); | |
5230 | } | |
5231 | ||
5232 | /* | |
5233 | * Propagate vdev state up from children to parent. | |
5234 | */ | |
34dc7c2f BB |
5235 | void |
5236 | vdev_propagate_state(vdev_t *vd) | |
5237 | { | |
fb5f0bc8 BB |
5238 | spa_t *spa = vd->vdev_spa; |
5239 | vdev_t *rvd = spa->spa_root_vdev; | |
34dc7c2f BB |
5240 | int degraded = 0, faulted = 0; |
5241 | int corrupted = 0; | |
34dc7c2f BB |
5242 | vdev_t *child; |
5243 | ||
5244 | if (vd->vdev_children > 0) { | |
1c27024e | 5245 | for (int c = 0; c < vd->vdev_children; c++) { |
34dc7c2f | 5246 | child = vd->vdev_child[c]; |
b128c09f | 5247 | |
428870ff | 5248 | /* |
a1d477c2 MA |
5249 | * Don't factor holes or indirect vdevs into the |
5250 | * decision. | |
428870ff | 5251 | */ |
a1d477c2 | 5252 | if (!vdev_is_concrete(child)) |
428870ff BB |
5253 | continue; |
5254 | ||
b128c09f | 5255 | if (!vdev_readable(child) || |
fb5f0bc8 | 5256 | (!vdev_writeable(child) && spa_writeable(spa))) { |
b128c09f BB |
5257 | /* |
5258 | * Root special: if there is a top-level log | |
5259 | * device, treat the root vdev as if it were | |
5260 | * degraded. | |
5261 | */ | |
5262 | if (child->vdev_islog && vd == rvd) | |
5263 | degraded++; | |
5264 | else | |
5265 | faulted++; | |
5266 | } else if (child->vdev_state <= VDEV_STATE_DEGRADED) { | |
34dc7c2f | 5267 | degraded++; |
b128c09f | 5268 | } |
34dc7c2f BB |
5269 | |
5270 | if (child->vdev_stat.vs_aux == VDEV_AUX_CORRUPT_DATA) | |
5271 | corrupted++; | |
5272 | } | |
5273 | ||
5274 | vd->vdev_ops->vdev_op_state_change(vd, faulted, degraded); | |
5275 | ||
5276 | /* | |
b128c09f | 5277 | * Root special: if there is a top-level vdev that cannot be |
34dc7c2f BB |
5278 | * opened due to corrupted metadata, then propagate the root |
5279 | * vdev's aux state as 'corrupt' rather than 'insufficient | |
5280 | * replicas'. | |
5281 | */ | |
5282 | if (corrupted && vd == rvd && | |
5283 | rvd->vdev_state == VDEV_STATE_CANT_OPEN) | |
5284 | vdev_set_state(rvd, B_FALSE, VDEV_STATE_CANT_OPEN, | |
5285 | VDEV_AUX_CORRUPT_DATA); | |
5286 | } | |
5287 | ||
b128c09f | 5288 | if (vd->vdev_parent) |
34dc7c2f BB |
5289 | vdev_propagate_state(vd->vdev_parent); |
5290 | } | |
5291 | ||
5292 | /* | |
5293 | * Set a vdev's state. If this is during an open, we don't update the parent | |
5294 | * state, because we're in the process of opening children depth-first. | |
5295 | * Otherwise, we propagate the change to the parent. | |
5296 | * | |
5297 | * If this routine places a device in a faulted state, an appropriate ereport is | |
5298 | * generated. | |
5299 | */ | |
5300 | void | |
5301 | vdev_set_state(vdev_t *vd, boolean_t isopen, vdev_state_t state, vdev_aux_t aux) | |
5302 | { | |
5303 | uint64_t save_state; | |
b128c09f | 5304 | spa_t *spa = vd->vdev_spa; |
34dc7c2f BB |
5305 | |
5306 | if (state == vd->vdev_state) { | |
976246fa DB |
5307 | /* |
5308 | * Since vdev_offline() code path is already in an offline | |
5309 | * state we can miss a statechange event to OFFLINE. Check | |
5310 | * the previous state to catch this condition. | |
5311 | */ | |
5312 | if (vd->vdev_ops->vdev_op_leaf && | |
5313 | (state == VDEV_STATE_OFFLINE) && | |
5314 | (vd->vdev_prevstate >= VDEV_STATE_FAULTED)) { | |
5315 | /* post an offline state change */ | |
5316 | zfs_post_state_change(spa, vd, vd->vdev_prevstate); | |
5317 | } | |
34dc7c2f BB |
5318 | vd->vdev_stat.vs_aux = aux; |
5319 | return; | |
5320 | } | |
5321 | ||
5322 | save_state = vd->vdev_state; | |
5323 | ||
5324 | vd->vdev_state = state; | |
5325 | vd->vdev_stat.vs_aux = aux; | |
5326 | ||
5327 | /* | |
5328 | * If we are setting the vdev state to anything but an open state, then | |
428870ff BB |
5329 | * always close the underlying device unless the device has requested |
5330 | * a delayed close (i.e. we're about to remove or fault the device). | |
5331 | * Otherwise, we keep accessible but invalid devices open forever. | |
5332 | * We don't call vdev_close() itself, because that implies some extra | |
5333 | * checks (offline, etc) that we don't want here. This is limited to | |
5334 | * leaf devices, because otherwise closing the device will affect other | |
5335 | * children. | |
34dc7c2f | 5336 | */ |
428870ff BB |
5337 | if (!vd->vdev_delayed_close && vdev_is_dead(vd) && |
5338 | vd->vdev_ops->vdev_op_leaf) | |
34dc7c2f BB |
5339 | vd->vdev_ops->vdev_op_close(vd); |
5340 | ||
5341 | if (vd->vdev_removed && | |
5342 | state == VDEV_STATE_CANT_OPEN && | |
5343 | (aux == VDEV_AUX_OPEN_FAILED || vd->vdev_checkremove)) { | |
5344 | /* | |
5345 | * If the previous state is set to VDEV_STATE_REMOVED, then this | |
5346 | * device was previously marked removed and someone attempted to | |
5347 | * reopen it. If this failed due to a nonexistent device, then | |
5348 | * keep the device in the REMOVED state. We also let this be if | |
5349 | * it is one of our special test online cases, which is only | |
5350 | * attempting to online the device and shouldn't generate an FMA | |
5351 | * fault. | |
5352 | */ | |
5353 | vd->vdev_state = VDEV_STATE_REMOVED; | |
5354 | vd->vdev_stat.vs_aux = VDEV_AUX_NONE; | |
5355 | } else if (state == VDEV_STATE_REMOVED) { | |
34dc7c2f BB |
5356 | vd->vdev_removed = B_TRUE; |
5357 | } else if (state == VDEV_STATE_CANT_OPEN) { | |
5358 | /* | |
572e2857 BB |
5359 | * If we fail to open a vdev during an import or recovery, we |
5360 | * mark it as "not available", which signifies that it was | |
5361 | * never there to begin with. Failure to open such a device | |
5362 | * is not considered an error. | |
34dc7c2f | 5363 | */ |
572e2857 BB |
5364 | if ((spa_load_state(spa) == SPA_LOAD_IMPORT || |
5365 | spa_load_state(spa) == SPA_LOAD_RECOVER) && | |
34dc7c2f BB |
5366 | vd->vdev_ops->vdev_op_leaf) |
5367 | vd->vdev_not_present = 1; | |
5368 | ||
5369 | /* | |
5370 | * Post the appropriate ereport. If the 'prevstate' field is | |
5371 | * set to something other than VDEV_STATE_UNKNOWN, it indicates | |
5372 | * that this is part of a vdev_reopen(). In this case, we don't | |
5373 | * want to post the ereport if the device was already in the | |
5374 | * CANT_OPEN state beforehand. | |
5375 | * | |
5376 | * If the 'checkremove' flag is set, then this is an attempt to | |
5377 | * online the device in response to an insertion event. If we | |
5378 | * hit this case, then we have detected an insertion event for a | |
5379 | * faulted or offline device that wasn't in the removed state. | |
5380 | * In this scenario, we don't post an ereport because we are | |
5381 | * about to replace the device, or attempt an online with | |
5382 | * vdev_forcefault, which will generate the fault for us. | |
5383 | */ | |
5384 | if ((vd->vdev_prevstate != state || vd->vdev_forcefault) && | |
5385 | !vd->vdev_not_present && !vd->vdev_checkremove && | |
b128c09f | 5386 | vd != spa->spa_root_vdev) { |
34dc7c2f BB |
5387 | const char *class; |
5388 | ||
5389 | switch (aux) { | |
5390 | case VDEV_AUX_OPEN_FAILED: | |
5391 | class = FM_EREPORT_ZFS_DEVICE_OPEN_FAILED; | |
5392 | break; | |
5393 | case VDEV_AUX_CORRUPT_DATA: | |
5394 | class = FM_EREPORT_ZFS_DEVICE_CORRUPT_DATA; | |
5395 | break; | |
5396 | case VDEV_AUX_NO_REPLICAS: | |
5397 | class = FM_EREPORT_ZFS_DEVICE_NO_REPLICAS; | |
5398 | break; | |
5399 | case VDEV_AUX_BAD_GUID_SUM: | |
5400 | class = FM_EREPORT_ZFS_DEVICE_BAD_GUID_SUM; | |
5401 | break; | |
5402 | case VDEV_AUX_TOO_SMALL: | |
5403 | class = FM_EREPORT_ZFS_DEVICE_TOO_SMALL; | |
5404 | break; | |
5405 | case VDEV_AUX_BAD_LABEL: | |
5406 | class = FM_EREPORT_ZFS_DEVICE_BAD_LABEL; | |
5407 | break; | |
ff61d1a4 | 5408 | case VDEV_AUX_BAD_ASHIFT: |
5409 | class = FM_EREPORT_ZFS_DEVICE_BAD_ASHIFT; | |
5410 | break; | |
34dc7c2f BB |
5411 | default: |
5412 | class = FM_EREPORT_ZFS_DEVICE_UNKNOWN; | |
5413 | } | |
5414 | ||
1144586b | 5415 | (void) zfs_ereport_post(class, spa, vd, NULL, NULL, |
4f072827 | 5416 | save_state); |
34dc7c2f BB |
5417 | } |
5418 | ||
5419 | /* Erase any notion of persistent removed state */ | |
5420 | vd->vdev_removed = B_FALSE; | |
5421 | } else { | |
5422 | vd->vdev_removed = B_FALSE; | |
5423 | } | |
5424 | ||
d02ca379 DB |
5425 | /* |
5426 | * Notify ZED of any significant state-change on a leaf vdev. | |
5427 | * | |
d02ca379 | 5428 | */ |
6078881a TH |
5429 | if (vd->vdev_ops->vdev_op_leaf) { |
5430 | /* preserve original state from a vdev_reopen() */ | |
5431 | if ((vd->vdev_prevstate != VDEV_STATE_UNKNOWN) && | |
5432 | (vd->vdev_prevstate != vd->vdev_state) && | |
5433 | (save_state <= VDEV_STATE_CLOSED)) | |
5434 | save_state = vd->vdev_prevstate; | |
5435 | ||
5436 | /* filter out state change due to initial vdev_open */ | |
5437 | if (save_state > VDEV_STATE_CLOSED) | |
5438 | zfs_post_state_change(spa, vd, save_state); | |
d02ca379 DB |
5439 | } |
5440 | ||
9babb374 BB |
5441 | if (!isopen && vd->vdev_parent) |
5442 | vdev_propagate_state(vd->vdev_parent); | |
34dc7c2f | 5443 | } |
b128c09f | 5444 | |
6cb8e530 PZ |
5445 | boolean_t |
5446 | vdev_children_are_offline(vdev_t *vd) | |
5447 | { | |
5448 | ASSERT(!vd->vdev_ops->vdev_op_leaf); | |
5449 | ||
5450 | for (uint64_t i = 0; i < vd->vdev_children; i++) { | |
5451 | if (vd->vdev_child[i]->vdev_state != VDEV_STATE_OFFLINE) | |
5452 | return (B_FALSE); | |
5453 | } | |
5454 | ||
5455 | return (B_TRUE); | |
5456 | } | |
5457 | ||
b128c09f BB |
5458 | /* |
5459 | * Check the vdev configuration to ensure that it's capable of supporting | |
e550644f | 5460 | * a root pool. We do not support partial configuration. |
b128c09f BB |
5461 | */ |
5462 | boolean_t | |
5463 | vdev_is_bootable(vdev_t *vd) | |
5464 | { | |
b128c09f | 5465 | if (!vd->vdev_ops->vdev_op_leaf) { |
e550644f | 5466 | const char *vdev_type = vd->vdev_ops->vdev_op_type; |
b128c09f | 5467 | |
cd5b8128 | 5468 | if (strcmp(vdev_type, VDEV_TYPE_MISSING) == 0) |
b128c09f | 5469 | return (B_FALSE); |
b128c09f BB |
5470 | } |
5471 | ||
e550644f | 5472 | for (int c = 0; c < vd->vdev_children; c++) { |
b128c09f BB |
5473 | if (!vdev_is_bootable(vd->vdev_child[c])) |
5474 | return (B_FALSE); | |
5475 | } | |
5476 | return (B_TRUE); | |
5477 | } | |
9babb374 | 5478 | |
a1d477c2 MA |
5479 | boolean_t |
5480 | vdev_is_concrete(vdev_t *vd) | |
5481 | { | |
5482 | vdev_ops_t *ops = vd->vdev_ops; | |
5483 | if (ops == &vdev_indirect_ops || ops == &vdev_hole_ops || | |
5484 | ops == &vdev_missing_ops || ops == &vdev_root_ops) { | |
5485 | return (B_FALSE); | |
5486 | } else { | |
5487 | return (B_TRUE); | |
5488 | } | |
5489 | } | |
5490 | ||
572e2857 BB |
5491 | /* |
5492 | * Determine if a log device has valid content. If the vdev was | |
5493 | * removed or faulted in the MOS config then we know that | |
5494 | * the content on the log device has already been written to the pool. | |
5495 | */ | |
5496 | boolean_t | |
5497 | vdev_log_state_valid(vdev_t *vd) | |
5498 | { | |
5499 | if (vd->vdev_ops->vdev_op_leaf && !vd->vdev_faulted && | |
5500 | !vd->vdev_removed) | |
5501 | return (B_TRUE); | |
5502 | ||
1c27024e | 5503 | for (int c = 0; c < vd->vdev_children; c++) |
572e2857 BB |
5504 | if (vdev_log_state_valid(vd->vdev_child[c])) |
5505 | return (B_TRUE); | |
5506 | ||
5507 | return (B_FALSE); | |
5508 | } | |
5509 | ||
9babb374 BB |
5510 | /* |
5511 | * Expand a vdev if possible. | |
5512 | */ | |
5513 | void | |
5514 | vdev_expand(vdev_t *vd, uint64_t txg) | |
5515 | { | |
5516 | ASSERT(vd->vdev_top == vd); | |
5517 | ASSERT(spa_config_held(vd->vdev_spa, SCL_ALL, RW_WRITER) == SCL_ALL); | |
7637ef8d | 5518 | ASSERT(vdev_is_concrete(vd)); |
9babb374 | 5519 | |
a1d477c2 MA |
5520 | vdev_set_deflate_ratio(vd); |
5521 | ||
5caeef02 DB |
5522 | if ((vd->vdev_spa->spa_raidz_expand == NULL || |
5523 | vd->vdev_spa->spa_raidz_expand->vre_vdev_id != vd->vdev_id) && | |
5524 | (vd->vdev_asize >> vd->vdev_ms_shift) > vd->vdev_ms_count && | |
cc99f275 DB |
5525 | vdev_is_concrete(vd)) { |
5526 | vdev_metaslab_group_create(vd); | |
9babb374 BB |
5527 | VERIFY(vdev_metaslab_init(vd, txg) == 0); |
5528 | vdev_config_dirty(vd); | |
5529 | } | |
5530 | } | |
428870ff BB |
5531 | |
5532 | /* | |
5533 | * Split a vdev. | |
5534 | */ | |
5535 | void | |
5536 | vdev_split(vdev_t *vd) | |
5537 | { | |
5538 | vdev_t *cvd, *pvd = vd->vdev_parent; | |
5539 | ||
399bb816 RY |
5540 | VERIFY3U(pvd->vdev_children, >, 1); |
5541 | ||
428870ff BB |
5542 | vdev_remove_child(pvd, vd); |
5543 | vdev_compact_children(pvd); | |
5544 | ||
399bb816 RY |
5545 | ASSERT3P(pvd->vdev_child, !=, NULL); |
5546 | ||
428870ff BB |
5547 | cvd = pvd->vdev_child[0]; |
5548 | if (pvd->vdev_children == 1) { | |
5549 | vdev_remove_parent(cvd); | |
5550 | cvd->vdev_splitting = B_TRUE; | |
5551 | } | |
5552 | vdev_propagate_state(cvd); | |
5553 | } | |
c28b2279 | 5554 | |
cc92e9d0 | 5555 | void |
dd66857d | 5556 | vdev_deadman(vdev_t *vd, const char *tag) |
cc92e9d0 | 5557 | { |
1c27024e | 5558 | for (int c = 0; c < vd->vdev_children; c++) { |
cc92e9d0 GW |
5559 | vdev_t *cvd = vd->vdev_child[c]; |
5560 | ||
8fb1ede1 | 5561 | vdev_deadman(cvd, tag); |
cc92e9d0 GW |
5562 | } |
5563 | ||
5564 | if (vd->vdev_ops->vdev_op_leaf) { | |
5565 | vdev_queue_t *vq = &vd->vdev_queue; | |
5566 | ||
5567 | mutex_enter(&vq->vq_lock); | |
8469b5aa | 5568 | if (vq->vq_active > 0) { |
cc92e9d0 GW |
5569 | spa_t *spa = vd->vdev_spa; |
5570 | zio_t *fio; | |
5571 | uint64_t delta; | |
5572 | ||
8469b5aa AM |
5573 | zfs_dbgmsg("slow vdev: %s has %u active IOs", |
5574 | vd->vdev_path, vq->vq_active); | |
8fb1ede1 | 5575 | |
cc92e9d0 GW |
5576 | /* |
5577 | * Look at the head of all the pending queues, | |
5578 | * if any I/O has been outstanding for longer than | |
8fb1ede1 | 5579 | * the spa_deadman_synctime invoke the deadman logic. |
cc92e9d0 | 5580 | */ |
8469b5aa | 5581 | fio = list_head(&vq->vq_active_list); |
cb682a17 | 5582 | delta = gethrtime() - fio->io_timestamp; |
8fb1ede1 BB |
5583 | if (delta > spa_deadman_synctime(spa)) |
5584 | zio_deadman(fio, tag); | |
cc92e9d0 GW |
5585 | } |
5586 | mutex_exit(&vq->vq_lock); | |
5587 | } | |
5588 | } | |
5589 | ||
80a91e74 | 5590 | void |
3c819a2c | 5591 | vdev_defer_resilver(vdev_t *vd) |
80a91e74 | 5592 | { |
3c819a2c | 5593 | ASSERT(vd->vdev_ops->vdev_op_leaf); |
4021ba4c | 5594 | |
3c819a2c JP |
5595 | vd->vdev_resilver_deferred = B_TRUE; |
5596 | vd->vdev_spa->spa_resilver_deferred = B_TRUE; | |
5597 | } | |
5598 | ||
5599 | /* | |
5600 | * Clears the resilver deferred flag on all leaf devs under vd. Returns | |
5601 | * B_TRUE if we have devices that need to be resilvered and are available to | |
5602 | * accept resilver I/Os. | |
5603 | */ | |
5604 | boolean_t | |
5605 | vdev_clear_resilver_deferred(vdev_t *vd, dmu_tx_t *tx) | |
5606 | { | |
5607 | boolean_t resilver_needed = B_FALSE; | |
5608 | spa_t *spa = vd->vdev_spa; | |
5609 | ||
5610 | for (int c = 0; c < vd->vdev_children; c++) { | |
5611 | vdev_t *cvd = vd->vdev_child[c]; | |
5612 | resilver_needed |= vdev_clear_resilver_deferred(cvd, tx); | |
4021ba4c TC |
5613 | } |
5614 | ||
3c819a2c JP |
5615 | if (vd == spa->spa_root_vdev && |
5616 | spa_feature_is_active(spa, SPA_FEATURE_RESILVER_DEFER)) { | |
5617 | spa_feature_decr(spa, SPA_FEATURE_RESILVER_DEFER, tx); | |
5618 | vdev_config_dirty(vd); | |
5619 | spa->spa_resilver_deferred = B_FALSE; | |
5620 | return (resilver_needed); | |
5621 | } | |
5622 | ||
5623 | if (!vdev_is_concrete(vd) || vd->vdev_aux || | |
5624 | !vd->vdev_ops->vdev_op_leaf) | |
5625 | return (resilver_needed); | |
5626 | ||
5627 | vd->vdev_resilver_deferred = B_FALSE; | |
5628 | ||
5629 | return (!vdev_is_dead(vd) && !vd->vdev_offline && | |
5630 | vdev_resilver_needed(vd, NULL, NULL)); | |
80a91e74 TC |
5631 | } |
5632 | ||
b2255edc BB |
5633 | boolean_t |
5634 | vdev_xlate_is_empty(range_seg64_t *rs) | |
5635 | { | |
5636 | return (rs->rs_start == rs->rs_end); | |
5637 | } | |
5638 | ||
1b939560 | 5639 | /* |
b2255edc BB |
5640 | * Translate a logical range to the first contiguous physical range for the |
5641 | * specified vdev_t. This function is initially called with a leaf vdev and | |
5642 | * will walk each parent vdev until it reaches a top-level vdev. Once the | |
5643 | * top-level is reached the physical range is initialized and the recursive | |
5644 | * function begins to unwind. As it unwinds it calls the parent's vdev | |
5645 | * specific translation function to do the real conversion. | |
1b939560 BB |
5646 | */ |
5647 | void | |
ca577779 | 5648 | vdev_xlate(vdev_t *vd, const range_seg64_t *logical_rs, |
b2255edc | 5649 | range_seg64_t *physical_rs, range_seg64_t *remain_rs) |
1b939560 BB |
5650 | { |
5651 | /* | |
5652 | * Walk up the vdev tree | |
5653 | */ | |
5654 | if (vd != vd->vdev_top) { | |
b2255edc BB |
5655 | vdev_xlate(vd->vdev_parent, logical_rs, physical_rs, |
5656 | remain_rs); | |
1b939560 BB |
5657 | } else { |
5658 | /* | |
b2255edc BB |
5659 | * We've reached the top-level vdev, initialize the physical |
5660 | * range to the logical range and set an empty remaining | |
5661 | * range then start to unwind. | |
1b939560 BB |
5662 | */ |
5663 | physical_rs->rs_start = logical_rs->rs_start; | |
5664 | physical_rs->rs_end = logical_rs->rs_end; | |
b2255edc BB |
5665 | |
5666 | remain_rs->rs_start = logical_rs->rs_start; | |
5667 | remain_rs->rs_end = logical_rs->rs_start; | |
5668 | ||
1b939560 BB |
5669 | return; |
5670 | } | |
5671 | ||
5672 | vdev_t *pvd = vd->vdev_parent; | |
5673 | ASSERT3P(pvd, !=, NULL); | |
5674 | ASSERT3P(pvd->vdev_ops->vdev_op_xlate, !=, NULL); | |
5675 | ||
5676 | /* | |
5677 | * As this recursive function unwinds, translate the logical | |
b2255edc BB |
5678 | * range into its physical and any remaining components by calling |
5679 | * the vdev specific translate function. | |
1b939560 | 5680 | */ |
ca577779 | 5681 | range_seg64_t intermediate = { 0 }; |
b2255edc | 5682 | pvd->vdev_ops->vdev_op_xlate(vd, physical_rs, &intermediate, remain_rs); |
1b939560 BB |
5683 | |
5684 | physical_rs->rs_start = intermediate.rs_start; | |
5685 | physical_rs->rs_end = intermediate.rs_end; | |
5686 | } | |
5687 | ||
b2255edc BB |
5688 | void |
5689 | vdev_xlate_walk(vdev_t *vd, const range_seg64_t *logical_rs, | |
5690 | vdev_xlate_func_t *func, void *arg) | |
5691 | { | |
5692 | range_seg64_t iter_rs = *logical_rs; | |
5693 | range_seg64_t physical_rs; | |
5694 | range_seg64_t remain_rs; | |
5695 | ||
5696 | while (!vdev_xlate_is_empty(&iter_rs)) { | |
5697 | ||
5698 | vdev_xlate(vd, &iter_rs, &physical_rs, &remain_rs); | |
5699 | ||
5700 | /* | |
5701 | * With raidz and dRAID, it's possible that the logical range | |
5702 | * does not live on this leaf vdev. Only when there is a non- | |
5703 | * zero physical size call the provided function. | |
5704 | */ | |
5705 | if (!vdev_xlate_is_empty(&physical_rs)) | |
5706 | func(arg, &physical_rs); | |
5707 | ||
5708 | iter_rs = remain_rs; | |
5709 | } | |
5710 | } | |
5711 | ||
2a673e76 AJ |
5712 | static char * |
5713 | vdev_name(vdev_t *vd, char *buf, int buflen) | |
5714 | { | |
5715 | if (vd->vdev_path == NULL) { | |
5716 | if (strcmp(vd->vdev_ops->vdev_op_type, "root") == 0) { | |
5717 | strlcpy(buf, vd->vdev_spa->spa_name, buflen); | |
5718 | } else if (!vd->vdev_ops->vdev_op_leaf) { | |
5719 | snprintf(buf, buflen, "%s-%llu", | |
5720 | vd->vdev_ops->vdev_op_type, | |
5721 | (u_longlong_t)vd->vdev_id); | |
5722 | } | |
5723 | } else { | |
5724 | strlcpy(buf, vd->vdev_path, buflen); | |
5725 | } | |
5726 | return (buf); | |
5727 | } | |
5728 | ||
e60e158e JG |
5729 | /* |
5730 | * Look at the vdev tree and determine whether any devices are currently being | |
5731 | * replaced. | |
5732 | */ | |
5733 | boolean_t | |
5734 | vdev_replace_in_progress(vdev_t *vdev) | |
5735 | { | |
5736 | ASSERT(spa_config_held(vdev->vdev_spa, SCL_ALL, RW_READER) != 0); | |
5737 | ||
5738 | if (vdev->vdev_ops == &vdev_replacing_ops) | |
5739 | return (B_TRUE); | |
5740 | ||
5741 | /* | |
5742 | * A 'spare' vdev indicates that we have a replace in progress, unless | |
5743 | * it has exactly two children, and the second, the hot spare, has | |
5744 | * finished being resilvered. | |
5745 | */ | |
5746 | if (vdev->vdev_ops == &vdev_spare_ops && (vdev->vdev_children > 2 || | |
5747 | !vdev_dtl_empty(vdev->vdev_child[1], DTL_MISSING))) | |
5748 | return (B_TRUE); | |
5749 | ||
5750 | for (int i = 0; i < vdev->vdev_children; i++) { | |
5751 | if (vdev_replace_in_progress(vdev->vdev_child[i])) | |
5752 | return (B_TRUE); | |
5753 | } | |
5754 | ||
5755 | return (B_FALSE); | |
5756 | } | |
5757 | ||
2a673e76 AJ |
5758 | /* |
5759 | * Add a (source=src, propname=propval) list to an nvlist. | |
5760 | */ | |
5761 | static void | |
d1807f16 | 5762 | vdev_prop_add_list(nvlist_t *nvl, const char *propname, const char *strval, |
2a673e76 AJ |
5763 | uint64_t intval, zprop_source_t src) |
5764 | { | |
5765 | nvlist_t *propval; | |
5766 | ||
5767 | propval = fnvlist_alloc(); | |
5768 | fnvlist_add_uint64(propval, ZPROP_SOURCE, src); | |
5769 | ||
5770 | if (strval != NULL) | |
5771 | fnvlist_add_string(propval, ZPROP_VALUE, strval); | |
5772 | else | |
5773 | fnvlist_add_uint64(propval, ZPROP_VALUE, intval); | |
5774 | ||
5775 | fnvlist_add_nvlist(nvl, propname, propval); | |
5776 | nvlist_free(propval); | |
5777 | } | |
5778 | ||
5779 | static void | |
5780 | vdev_props_set_sync(void *arg, dmu_tx_t *tx) | |
5781 | { | |
5782 | vdev_t *vd; | |
5783 | nvlist_t *nvp = arg; | |
5784 | spa_t *spa = dmu_tx_pool(tx)->dp_spa; | |
5785 | objset_t *mos = spa->spa_meta_objset; | |
5786 | nvpair_t *elem = NULL; | |
5787 | uint64_t vdev_guid; | |
929173ab | 5788 | uint64_t objid; |
2a673e76 AJ |
5789 | nvlist_t *nvprops; |
5790 | ||
5791 | vdev_guid = fnvlist_lookup_uint64(nvp, ZPOOL_VDEV_PROPS_SET_VDEV); | |
5792 | nvprops = fnvlist_lookup_nvlist(nvp, ZPOOL_VDEV_PROPS_SET_PROPS); | |
5793 | vd = spa_lookup_by_guid(spa, vdev_guid, B_TRUE); | |
da9c6c03 MM |
5794 | |
5795 | /* this vdev could get removed while waiting for this sync task */ | |
5796 | if (vd == NULL) | |
5797 | return; | |
2a673e76 | 5798 | |
929173ab YP |
5799 | /* |
5800 | * Set vdev property values in the vdev props mos object. | |
5801 | */ | |
5802 | if (vd->vdev_root_zap != 0) { | |
5803 | objid = vd->vdev_root_zap; | |
5804 | } else if (vd->vdev_top_zap != 0) { | |
5805 | objid = vd->vdev_top_zap; | |
5806 | } else if (vd->vdev_leaf_zap != 0) { | |
5807 | objid = vd->vdev_leaf_zap; | |
5808 | } else { | |
5809 | panic("unexpected vdev type"); | |
5810 | } | |
5811 | ||
2a673e76 AJ |
5812 | mutex_enter(&spa->spa_props_lock); |
5813 | ||
5814 | while ((elem = nvlist_next_nvpair(nvprops, elem)) != NULL) { | |
929173ab | 5815 | uint64_t intval; |
d1807f16 | 5816 | const char *strval; |
2a673e76 AJ |
5817 | vdev_prop_t prop; |
5818 | const char *propname = nvpair_name(elem); | |
5819 | zprop_type_t proptype; | |
5820 | ||
2a673e76 | 5821 | switch (prop = vdev_name_to_prop(propname)) { |
4ff7a8fa | 5822 | case VDEV_PROP_USERPROP: |
2a673e76 AJ |
5823 | if (vdev_prop_user(propname)) { |
5824 | strval = fnvpair_value_string(elem); | |
5825 | if (strlen(strval) == 0) { | |
5826 | /* remove the property if value == "" */ | |
5827 | (void) zap_remove(mos, objid, propname, | |
5828 | tx); | |
5829 | } else { | |
5830 | VERIFY0(zap_update(mos, objid, propname, | |
5831 | 1, strlen(strval) + 1, strval, tx)); | |
5832 | } | |
5833 | spa_history_log_internal(spa, "vdev set", tx, | |
5834 | "vdev_guid=%llu: %s=%s", | |
5835 | (u_longlong_t)vdev_guid, nvpair_name(elem), | |
5836 | strval); | |
5837 | } | |
5838 | break; | |
5839 | default: | |
5840 | /* normalize the property name */ | |
5841 | propname = vdev_prop_to_name(prop); | |
5842 | proptype = vdev_prop_get_type(prop); | |
5843 | ||
5844 | if (nvpair_type(elem) == DATA_TYPE_STRING) { | |
5845 | ASSERT(proptype == PROP_TYPE_STRING); | |
5846 | strval = fnvpair_value_string(elem); | |
5847 | VERIFY0(zap_update(mos, objid, propname, | |
5848 | 1, strlen(strval) + 1, strval, tx)); | |
5849 | spa_history_log_internal(spa, "vdev set", tx, | |
5850 | "vdev_guid=%llu: %s=%s", | |
5851 | (u_longlong_t)vdev_guid, nvpair_name(elem), | |
5852 | strval); | |
5853 | } else if (nvpair_type(elem) == DATA_TYPE_UINT64) { | |
5854 | intval = fnvpair_value_uint64(elem); | |
5855 | ||
5856 | if (proptype == PROP_TYPE_INDEX) { | |
5857 | const char *unused; | |
5858 | VERIFY0(vdev_prop_index_to_string( | |
5859 | prop, intval, &unused)); | |
5860 | } | |
5861 | VERIFY0(zap_update(mos, objid, propname, | |
5862 | sizeof (uint64_t), 1, &intval, tx)); | |
5863 | spa_history_log_internal(spa, "vdev set", tx, | |
5864 | "vdev_guid=%llu: %s=%lld", | |
5865 | (u_longlong_t)vdev_guid, | |
5866 | nvpair_name(elem), (longlong_t)intval); | |
5867 | } else { | |
5868 | panic("invalid vdev property type %u", | |
5869 | nvpair_type(elem)); | |
5870 | } | |
5871 | } | |
5872 | ||
5873 | } | |
5874 | ||
5875 | mutex_exit(&spa->spa_props_lock); | |
5876 | } | |
5877 | ||
5878 | int | |
5879 | vdev_prop_set(vdev_t *vd, nvlist_t *innvl, nvlist_t *outnvl) | |
5880 | { | |
5881 | spa_t *spa = vd->vdev_spa; | |
5882 | nvpair_t *elem = NULL; | |
5883 | uint64_t vdev_guid; | |
5884 | nvlist_t *nvprops; | |
70248b82 | 5885 | int error = 0; |
2a673e76 AJ |
5886 | |
5887 | ASSERT(vd != NULL); | |
5888 | ||
929173ab YP |
5889 | /* Check that vdev has a zap we can use */ |
5890 | if (vd->vdev_root_zap == 0 && | |
5891 | vd->vdev_top_zap == 0 && | |
5892 | vd->vdev_leaf_zap == 0) | |
5893 | return (SET_ERROR(EINVAL)); | |
5894 | ||
2a673e76 AJ |
5895 | if (nvlist_lookup_uint64(innvl, ZPOOL_VDEV_PROPS_SET_VDEV, |
5896 | &vdev_guid) != 0) | |
5897 | return (SET_ERROR(EINVAL)); | |
5898 | ||
5899 | if (nvlist_lookup_nvlist(innvl, ZPOOL_VDEV_PROPS_SET_PROPS, | |
5900 | &nvprops) != 0) | |
5901 | return (SET_ERROR(EINVAL)); | |
5902 | ||
5903 | if ((vd = spa_lookup_by_guid(spa, vdev_guid, B_TRUE)) == NULL) | |
5904 | return (SET_ERROR(EINVAL)); | |
5905 | ||
5906 | while ((elem = nvlist_next_nvpair(nvprops, elem)) != NULL) { | |
d1807f16 | 5907 | const char *propname = nvpair_name(elem); |
2a673e76 AJ |
5908 | vdev_prop_t prop = vdev_name_to_prop(propname); |
5909 | uint64_t intval = 0; | |
d1807f16 | 5910 | const char *strval = NULL; |
2a673e76 | 5911 | |
4ff7a8fa | 5912 | if (prop == VDEV_PROP_USERPROP && !vdev_prop_user(propname)) { |
2a673e76 AJ |
5913 | error = EINVAL; |
5914 | goto end; | |
5915 | } | |
5916 | ||
5917 | if (vdev_prop_readonly(prop)) { | |
5918 | error = EROFS; | |
5919 | goto end; | |
5920 | } | |
5921 | ||
5922 | /* Special Processing */ | |
5923 | switch (prop) { | |
5924 | case VDEV_PROP_PATH: | |
5925 | if (vd->vdev_path == NULL) { | |
5926 | error = EROFS; | |
5927 | break; | |
5928 | } | |
5929 | if (nvpair_value_string(elem, &strval) != 0) { | |
5930 | error = EINVAL; | |
5931 | break; | |
5932 | } | |
5933 | /* New path must start with /dev/ */ | |
5934 | if (strncmp(strval, "/dev/", 5)) { | |
5935 | error = EINVAL; | |
5936 | break; | |
5937 | } | |
5938 | error = spa_vdev_setpath(spa, vdev_guid, strval); | |
5939 | break; | |
5940 | case VDEV_PROP_ALLOCATING: | |
5941 | if (nvpair_value_uint64(elem, &intval) != 0) { | |
5942 | error = EINVAL; | |
5943 | break; | |
5944 | } | |
5945 | if (intval != vd->vdev_noalloc) | |
5946 | break; | |
5947 | if (intval == 0) | |
5948 | error = spa_vdev_noalloc(spa, vdev_guid); | |
5949 | else | |
5950 | error = spa_vdev_alloc(spa, vdev_guid); | |
5951 | break; | |
16f0fdad MZ |
5952 | case VDEV_PROP_FAILFAST: |
5953 | if (nvpair_value_uint64(elem, &intval) != 0) { | |
5954 | error = EINVAL; | |
5955 | break; | |
5956 | } | |
5957 | vd->vdev_failfast = intval & 1; | |
5958 | break; | |
69f024a5 RW |
5959 | case VDEV_PROP_CHECKSUM_N: |
5960 | if (nvpair_value_uint64(elem, &intval) != 0) { | |
5961 | error = EINVAL; | |
5962 | break; | |
5963 | } | |
5964 | vd->vdev_checksum_n = intval; | |
5965 | break; | |
5966 | case VDEV_PROP_CHECKSUM_T: | |
5967 | if (nvpair_value_uint64(elem, &intval) != 0) { | |
5968 | error = EINVAL; | |
5969 | break; | |
5970 | } | |
5971 | vd->vdev_checksum_t = intval; | |
5972 | break; | |
5973 | case VDEV_PROP_IO_N: | |
5974 | if (nvpair_value_uint64(elem, &intval) != 0) { | |
5975 | error = EINVAL; | |
5976 | break; | |
5977 | } | |
5978 | vd->vdev_io_n = intval; | |
5979 | break; | |
5980 | case VDEV_PROP_IO_T: | |
5981 | if (nvpair_value_uint64(elem, &intval) != 0) { | |
5982 | error = EINVAL; | |
5983 | break; | |
5984 | } | |
5985 | vd->vdev_io_t = intval; | |
5986 | break; | |
cbe88229 DB |
5987 | case VDEV_PROP_SLOW_IO_N: |
5988 | if (nvpair_value_uint64(elem, &intval) != 0) { | |
5989 | error = EINVAL; | |
5990 | break; | |
5991 | } | |
5992 | vd->vdev_slow_io_n = intval; | |
5993 | break; | |
5994 | case VDEV_PROP_SLOW_IO_T: | |
5995 | if (nvpair_value_uint64(elem, &intval) != 0) { | |
5996 | error = EINVAL; | |
5997 | break; | |
5998 | } | |
5999 | vd->vdev_slow_io_t = intval; | |
6000 | break; | |
2a673e76 AJ |
6001 | default: |
6002 | /* Most processing is done in vdev_props_set_sync */ | |
6003 | break; | |
6004 | } | |
6005 | end: | |
6006 | if (error != 0) { | |
6007 | intval = error; | |
6008 | vdev_prop_add_list(outnvl, propname, strval, intval, 0); | |
6009 | return (error); | |
6010 | } | |
6011 | } | |
6012 | ||
6013 | return (dsl_sync_task(spa->spa_name, NULL, vdev_props_set_sync, | |
6014 | innvl, 6, ZFS_SPACE_CHECK_EXTRA_RESERVED)); | |
6015 | } | |
6016 | ||
6017 | int | |
6018 | vdev_prop_get(vdev_t *vd, nvlist_t *innvl, nvlist_t *outnvl) | |
6019 | { | |
6020 | spa_t *spa = vd->vdev_spa; | |
6021 | objset_t *mos = spa->spa_meta_objset; | |
6022 | int err = 0; | |
6023 | uint64_t objid; | |
6024 | uint64_t vdev_guid; | |
6025 | nvpair_t *elem = NULL; | |
6026 | nvlist_t *nvprops = NULL; | |
6027 | uint64_t intval = 0; | |
6028 | char *strval = NULL; | |
6029 | const char *propname = NULL; | |
6030 | vdev_prop_t prop; | |
6031 | ||
6032 | ASSERT(vd != NULL); | |
6033 | ASSERT(mos != NULL); | |
6034 | ||
6035 | if (nvlist_lookup_uint64(innvl, ZPOOL_VDEV_PROPS_GET_VDEV, | |
6036 | &vdev_guid) != 0) | |
6037 | return (SET_ERROR(EINVAL)); | |
6038 | ||
6039 | nvlist_lookup_nvlist(innvl, ZPOOL_VDEV_PROPS_GET_PROPS, &nvprops); | |
6040 | ||
3e4ed421 RW |
6041 | if (vd->vdev_root_zap != 0) { |
6042 | objid = vd->vdev_root_zap; | |
6043 | } else if (vd->vdev_top_zap != 0) { | |
2a673e76 AJ |
6044 | objid = vd->vdev_top_zap; |
6045 | } else if (vd->vdev_leaf_zap != 0) { | |
6046 | objid = vd->vdev_leaf_zap; | |
6047 | } else { | |
6048 | return (SET_ERROR(EINVAL)); | |
6049 | } | |
6050 | ASSERT(objid != 0); | |
6051 | ||
6052 | mutex_enter(&spa->spa_props_lock); | |
6053 | ||
6054 | if (nvprops != NULL) { | |
6055 | char namebuf[64] = { 0 }; | |
6056 | ||
6057 | while ((elem = nvlist_next_nvpair(nvprops, elem)) != NULL) { | |
6058 | intval = 0; | |
6059 | strval = NULL; | |
6060 | propname = nvpair_name(elem); | |
6061 | prop = vdev_name_to_prop(propname); | |
6062 | zprop_source_t src = ZPROP_SRC_DEFAULT; | |
6063 | uint64_t integer_size, num_integers; | |
6064 | ||
6065 | switch (prop) { | |
6066 | /* Special Read-only Properties */ | |
6067 | case VDEV_PROP_NAME: | |
6068 | strval = vdev_name(vd, namebuf, | |
6069 | sizeof (namebuf)); | |
6070 | if (strval == NULL) | |
6071 | continue; | |
6072 | vdev_prop_add_list(outnvl, propname, strval, 0, | |
6073 | ZPROP_SRC_NONE); | |
6074 | continue; | |
6075 | case VDEV_PROP_CAPACITY: | |
6076 | /* percent used */ | |
6077 | intval = (vd->vdev_stat.vs_dspace == 0) ? 0 : | |
6078 | (vd->vdev_stat.vs_alloc * 100 / | |
6079 | vd->vdev_stat.vs_dspace); | |
6080 | vdev_prop_add_list(outnvl, propname, NULL, | |
6081 | intval, ZPROP_SRC_NONE); | |
6082 | continue; | |
6083 | case VDEV_PROP_STATE: | |
6084 | vdev_prop_add_list(outnvl, propname, NULL, | |
6085 | vd->vdev_state, ZPROP_SRC_NONE); | |
6086 | continue; | |
6087 | case VDEV_PROP_GUID: | |
6088 | vdev_prop_add_list(outnvl, propname, NULL, | |
6089 | vd->vdev_guid, ZPROP_SRC_NONE); | |
6090 | continue; | |
6091 | case VDEV_PROP_ASIZE: | |
6092 | vdev_prop_add_list(outnvl, propname, NULL, | |
6093 | vd->vdev_asize, ZPROP_SRC_NONE); | |
6094 | continue; | |
6095 | case VDEV_PROP_PSIZE: | |
6096 | vdev_prop_add_list(outnvl, propname, NULL, | |
6097 | vd->vdev_psize, ZPROP_SRC_NONE); | |
6098 | continue; | |
6099 | case VDEV_PROP_ASHIFT: | |
6100 | vdev_prop_add_list(outnvl, propname, NULL, | |
6101 | vd->vdev_ashift, ZPROP_SRC_NONE); | |
6102 | continue; | |
6103 | case VDEV_PROP_SIZE: | |
6104 | vdev_prop_add_list(outnvl, propname, NULL, | |
6105 | vd->vdev_stat.vs_dspace, ZPROP_SRC_NONE); | |
6106 | continue; | |
6107 | case VDEV_PROP_FREE: | |
6108 | vdev_prop_add_list(outnvl, propname, NULL, | |
6109 | vd->vdev_stat.vs_dspace - | |
6110 | vd->vdev_stat.vs_alloc, ZPROP_SRC_NONE); | |
6111 | continue; | |
6112 | case VDEV_PROP_ALLOCATED: | |
6113 | vdev_prop_add_list(outnvl, propname, NULL, | |
6114 | vd->vdev_stat.vs_alloc, ZPROP_SRC_NONE); | |
6115 | continue; | |
6116 | case VDEV_PROP_EXPANDSZ: | |
6117 | vdev_prop_add_list(outnvl, propname, NULL, | |
6118 | vd->vdev_stat.vs_esize, ZPROP_SRC_NONE); | |
6119 | continue; | |
6120 | case VDEV_PROP_FRAGMENTATION: | |
6121 | vdev_prop_add_list(outnvl, propname, NULL, | |
6122 | vd->vdev_stat.vs_fragmentation, | |
6123 | ZPROP_SRC_NONE); | |
6124 | continue; | |
6125 | case VDEV_PROP_PARITY: | |
6126 | vdev_prop_add_list(outnvl, propname, NULL, | |
6127 | vdev_get_nparity(vd), ZPROP_SRC_NONE); | |
6128 | continue; | |
6129 | case VDEV_PROP_PATH: | |
6130 | if (vd->vdev_path == NULL) | |
6131 | continue; | |
6132 | vdev_prop_add_list(outnvl, propname, | |
6133 | vd->vdev_path, 0, ZPROP_SRC_NONE); | |
6134 | continue; | |
6135 | case VDEV_PROP_DEVID: | |
6136 | if (vd->vdev_devid == NULL) | |
6137 | continue; | |
6138 | vdev_prop_add_list(outnvl, propname, | |
6139 | vd->vdev_devid, 0, ZPROP_SRC_NONE); | |
6140 | continue; | |
6141 | case VDEV_PROP_PHYS_PATH: | |
6142 | if (vd->vdev_physpath == NULL) | |
6143 | continue; | |
6144 | vdev_prop_add_list(outnvl, propname, | |
6145 | vd->vdev_physpath, 0, ZPROP_SRC_NONE); | |
6146 | continue; | |
6147 | case VDEV_PROP_ENC_PATH: | |
6148 | if (vd->vdev_enc_sysfs_path == NULL) | |
6149 | continue; | |
6150 | vdev_prop_add_list(outnvl, propname, | |
6151 | vd->vdev_enc_sysfs_path, 0, ZPROP_SRC_NONE); | |
6152 | continue; | |
6153 | case VDEV_PROP_FRU: | |
6154 | if (vd->vdev_fru == NULL) | |
6155 | continue; | |
6156 | vdev_prop_add_list(outnvl, propname, | |
6157 | vd->vdev_fru, 0, ZPROP_SRC_NONE); | |
6158 | continue; | |
6159 | case VDEV_PROP_PARENT: | |
6160 | if (vd->vdev_parent != NULL) { | |
6161 | strval = vdev_name(vd->vdev_parent, | |
6162 | namebuf, sizeof (namebuf)); | |
6163 | vdev_prop_add_list(outnvl, propname, | |
6164 | strval, 0, ZPROP_SRC_NONE); | |
6165 | } | |
6166 | continue; | |
6167 | case VDEV_PROP_CHILDREN: | |
6168 | if (vd->vdev_children > 0) | |
6169 | strval = kmem_zalloc(ZAP_MAXVALUELEN, | |
6170 | KM_SLEEP); | |
6171 | for (uint64_t i = 0; i < vd->vdev_children; | |
6172 | i++) { | |
a926aab9 | 6173 | const char *vname; |
2a673e76 AJ |
6174 | |
6175 | vname = vdev_name(vd->vdev_child[i], | |
6176 | namebuf, sizeof (namebuf)); | |
6177 | if (vname == NULL) | |
6178 | vname = "(unknown)"; | |
6179 | if (strlen(strval) > 0) | |
6180 | strlcat(strval, ",", | |
6181 | ZAP_MAXVALUELEN); | |
6182 | strlcat(strval, vname, ZAP_MAXVALUELEN); | |
6183 | } | |
6184 | if (strval != NULL) { | |
6185 | vdev_prop_add_list(outnvl, propname, | |
6186 | strval, 0, ZPROP_SRC_NONE); | |
6187 | kmem_free(strval, ZAP_MAXVALUELEN); | |
6188 | } | |
6189 | continue; | |
6190 | case VDEV_PROP_NUMCHILDREN: | |
6191 | vdev_prop_add_list(outnvl, propname, NULL, | |
6192 | vd->vdev_children, ZPROP_SRC_NONE); | |
6193 | continue; | |
6194 | case VDEV_PROP_READ_ERRORS: | |
6195 | vdev_prop_add_list(outnvl, propname, NULL, | |
6196 | vd->vdev_stat.vs_read_errors, | |
6197 | ZPROP_SRC_NONE); | |
6198 | continue; | |
6199 | case VDEV_PROP_WRITE_ERRORS: | |
6200 | vdev_prop_add_list(outnvl, propname, NULL, | |
6201 | vd->vdev_stat.vs_write_errors, | |
6202 | ZPROP_SRC_NONE); | |
6203 | continue; | |
6204 | case VDEV_PROP_CHECKSUM_ERRORS: | |
6205 | vdev_prop_add_list(outnvl, propname, NULL, | |
6206 | vd->vdev_stat.vs_checksum_errors, | |
6207 | ZPROP_SRC_NONE); | |
6208 | continue; | |
6209 | case VDEV_PROP_INITIALIZE_ERRORS: | |
6210 | vdev_prop_add_list(outnvl, propname, NULL, | |
6211 | vd->vdev_stat.vs_initialize_errors, | |
6212 | ZPROP_SRC_NONE); | |
6213 | continue; | |
6214 | case VDEV_PROP_OPS_NULL: | |
6215 | vdev_prop_add_list(outnvl, propname, NULL, | |
6216 | vd->vdev_stat.vs_ops[ZIO_TYPE_NULL], | |
6217 | ZPROP_SRC_NONE); | |
6218 | continue; | |
6219 | case VDEV_PROP_OPS_READ: | |
6220 | vdev_prop_add_list(outnvl, propname, NULL, | |
6221 | vd->vdev_stat.vs_ops[ZIO_TYPE_READ], | |
6222 | ZPROP_SRC_NONE); | |
6223 | continue; | |
6224 | case VDEV_PROP_OPS_WRITE: | |
6225 | vdev_prop_add_list(outnvl, propname, NULL, | |
6226 | vd->vdev_stat.vs_ops[ZIO_TYPE_WRITE], | |
6227 | ZPROP_SRC_NONE); | |
6228 | continue; | |
6229 | case VDEV_PROP_OPS_FREE: | |
6230 | vdev_prop_add_list(outnvl, propname, NULL, | |
6231 | vd->vdev_stat.vs_ops[ZIO_TYPE_FREE], | |
6232 | ZPROP_SRC_NONE); | |
6233 | continue; | |
6234 | case VDEV_PROP_OPS_CLAIM: | |
6235 | vdev_prop_add_list(outnvl, propname, NULL, | |
6236 | vd->vdev_stat.vs_ops[ZIO_TYPE_CLAIM], | |
6237 | ZPROP_SRC_NONE); | |
6238 | continue; | |
6239 | case VDEV_PROP_OPS_TRIM: | |
6240 | /* | |
6241 | * TRIM ops and bytes are reported to user | |
6242 | * space as ZIO_TYPE_IOCTL. This is done to | |
6243 | * preserve the vdev_stat_t structure layout | |
6244 | * for user space. | |
6245 | */ | |
6246 | vdev_prop_add_list(outnvl, propname, NULL, | |
6247 | vd->vdev_stat.vs_ops[ZIO_TYPE_IOCTL], | |
6248 | ZPROP_SRC_NONE); | |
6249 | continue; | |
6250 | case VDEV_PROP_BYTES_NULL: | |
6251 | vdev_prop_add_list(outnvl, propname, NULL, | |
6252 | vd->vdev_stat.vs_bytes[ZIO_TYPE_NULL], | |
6253 | ZPROP_SRC_NONE); | |
6254 | continue; | |
6255 | case VDEV_PROP_BYTES_READ: | |
6256 | vdev_prop_add_list(outnvl, propname, NULL, | |
6257 | vd->vdev_stat.vs_bytes[ZIO_TYPE_READ], | |
6258 | ZPROP_SRC_NONE); | |
6259 | continue; | |
6260 | case VDEV_PROP_BYTES_WRITE: | |
6261 | vdev_prop_add_list(outnvl, propname, NULL, | |
6262 | vd->vdev_stat.vs_bytes[ZIO_TYPE_WRITE], | |
6263 | ZPROP_SRC_NONE); | |
6264 | continue; | |
6265 | case VDEV_PROP_BYTES_FREE: | |
6266 | vdev_prop_add_list(outnvl, propname, NULL, | |
6267 | vd->vdev_stat.vs_bytes[ZIO_TYPE_FREE], | |
6268 | ZPROP_SRC_NONE); | |
6269 | continue; | |
6270 | case VDEV_PROP_BYTES_CLAIM: | |
6271 | vdev_prop_add_list(outnvl, propname, NULL, | |
6272 | vd->vdev_stat.vs_bytes[ZIO_TYPE_CLAIM], | |
6273 | ZPROP_SRC_NONE); | |
6274 | continue; | |
6275 | case VDEV_PROP_BYTES_TRIM: | |
6276 | /* | |
6277 | * TRIM ops and bytes are reported to user | |
6278 | * space as ZIO_TYPE_IOCTL. This is done to | |
6279 | * preserve the vdev_stat_t structure layout | |
6280 | * for user space. | |
6281 | */ | |
6282 | vdev_prop_add_list(outnvl, propname, NULL, | |
6283 | vd->vdev_stat.vs_bytes[ZIO_TYPE_IOCTL], | |
6284 | ZPROP_SRC_NONE); | |
6285 | continue; | |
6286 | case VDEV_PROP_REMOVING: | |
6287 | vdev_prop_add_list(outnvl, propname, NULL, | |
6288 | vd->vdev_removing, ZPROP_SRC_NONE); | |
6289 | continue; | |
5caeef02 DB |
6290 | case VDEV_PROP_RAIDZ_EXPANDING: |
6291 | /* Only expose this for raidz */ | |
6292 | if (vd->vdev_ops == &vdev_raidz_ops) { | |
6293 | vdev_prop_add_list(outnvl, propname, | |
6294 | NULL, vd->vdev_rz_expanding, | |
6295 | ZPROP_SRC_NONE); | |
6296 | } | |
6297 | continue; | |
2a673e76 AJ |
6298 | /* Numeric Properites */ |
6299 | case VDEV_PROP_ALLOCATING: | |
2a673e76 AJ |
6300 | /* Leaf vdevs cannot have this property */ |
6301 | if (vd->vdev_mg == NULL && | |
6302 | vd->vdev_top != NULL) { | |
6303 | src = ZPROP_SRC_NONE; | |
6304 | intval = ZPROP_BOOLEAN_NA; | |
69f024a5 RW |
6305 | } else { |
6306 | err = vdev_prop_get_int(vd, prop, | |
6307 | &intval); | |
6308 | if (err && err != ENOENT) | |
6309 | break; | |
6310 | ||
6311 | if (intval == | |
6312 | vdev_prop_default_numeric(prop)) | |
6313 | src = ZPROP_SRC_DEFAULT; | |
6314 | else | |
6315 | src = ZPROP_SRC_LOCAL; | |
2a673e76 AJ |
6316 | } |
6317 | ||
69f024a5 | 6318 | vdev_prop_add_list(outnvl, propname, NULL, |
16f0fdad MZ |
6319 | intval, src); |
6320 | break; | |
6321 | case VDEV_PROP_FAILFAST: | |
6322 | src = ZPROP_SRC_LOCAL; | |
6323 | strval = NULL; | |
6324 | ||
6325 | err = zap_lookup(mos, objid, nvpair_name(elem), | |
6326 | sizeof (uint64_t), 1, &intval); | |
6327 | if (err == ENOENT) { | |
6328 | intval = vdev_prop_default_numeric( | |
6329 | prop); | |
6330 | err = 0; | |
6331 | } else if (err) { | |
6332 | break; | |
6333 | } | |
6334 | if (intval == vdev_prop_default_numeric(prop)) | |
6335 | src = ZPROP_SRC_DEFAULT; | |
6336 | ||
2a673e76 AJ |
6337 | vdev_prop_add_list(outnvl, propname, strval, |
6338 | intval, src); | |
6339 | break; | |
69f024a5 RW |
6340 | case VDEV_PROP_CHECKSUM_N: |
6341 | case VDEV_PROP_CHECKSUM_T: | |
6342 | case VDEV_PROP_IO_N: | |
6343 | case VDEV_PROP_IO_T: | |
cbe88229 DB |
6344 | case VDEV_PROP_SLOW_IO_N: |
6345 | case VDEV_PROP_SLOW_IO_T: | |
69f024a5 RW |
6346 | err = vdev_prop_get_int(vd, prop, &intval); |
6347 | if (err && err != ENOENT) | |
6348 | break; | |
6349 | ||
6350 | if (intval == vdev_prop_default_numeric(prop)) | |
6351 | src = ZPROP_SRC_DEFAULT; | |
6352 | else | |
6353 | src = ZPROP_SRC_LOCAL; | |
6354 | ||
6355 | vdev_prop_add_list(outnvl, propname, NULL, | |
6356 | intval, src); | |
6357 | break; | |
2a673e76 AJ |
6358 | /* Text Properties */ |
6359 | case VDEV_PROP_COMMENT: | |
6360 | /* Exists in the ZAP below */ | |
6361 | /* FALLTHRU */ | |
4ff7a8fa | 6362 | case VDEV_PROP_USERPROP: |
2a673e76 AJ |
6363 | /* User Properites */ |
6364 | src = ZPROP_SRC_LOCAL; | |
6365 | ||
6366 | err = zap_length(mos, objid, nvpair_name(elem), | |
6367 | &integer_size, &num_integers); | |
6368 | if (err) | |
6369 | break; | |
6370 | ||
6371 | switch (integer_size) { | |
6372 | case 8: | |
6373 | /* User properties cannot be integers */ | |
6374 | err = EINVAL; | |
6375 | break; | |
6376 | case 1: | |
6377 | /* string property */ | |
6378 | strval = kmem_alloc(num_integers, | |
6379 | KM_SLEEP); | |
6380 | err = zap_lookup(mos, objid, | |
6381 | nvpair_name(elem), 1, | |
6382 | num_integers, strval); | |
6383 | if (err) { | |
6384 | kmem_free(strval, | |
6385 | num_integers); | |
6386 | break; | |
6387 | } | |
6388 | vdev_prop_add_list(outnvl, propname, | |
6389 | strval, 0, src); | |
6390 | kmem_free(strval, num_integers); | |
6391 | break; | |
6392 | } | |
6393 | break; | |
6394 | default: | |
6395 | err = ENOENT; | |
6396 | break; | |
6397 | } | |
6398 | if (err) | |
6399 | break; | |
6400 | } | |
6401 | } else { | |
6402 | /* | |
6403 | * Get all properties from the MOS vdev property object. | |
6404 | */ | |
6405 | zap_cursor_t zc; | |
6406 | zap_attribute_t za; | |
6407 | for (zap_cursor_init(&zc, mos, objid); | |
6408 | (err = zap_cursor_retrieve(&zc, &za)) == 0; | |
6409 | zap_cursor_advance(&zc)) { | |
6410 | intval = 0; | |
6411 | strval = NULL; | |
6412 | zprop_source_t src = ZPROP_SRC_DEFAULT; | |
6413 | propname = za.za_name; | |
2a673e76 AJ |
6414 | |
6415 | switch (za.za_integer_length) { | |
6416 | case 8: | |
6417 | /* We do not allow integer user properties */ | |
6418 | /* This is likely an internal value */ | |
6419 | break; | |
6420 | case 1: | |
6421 | /* string property */ | |
6422 | strval = kmem_alloc(za.za_num_integers, | |
6423 | KM_SLEEP); | |
6424 | err = zap_lookup(mos, objid, za.za_name, 1, | |
6425 | za.za_num_integers, strval); | |
6426 | if (err) { | |
6427 | kmem_free(strval, za.za_num_integers); | |
6428 | break; | |
6429 | } | |
6430 | vdev_prop_add_list(outnvl, propname, strval, 0, | |
6431 | src); | |
6432 | kmem_free(strval, za.za_num_integers); | |
6433 | break; | |
6434 | ||
6435 | default: | |
6436 | break; | |
6437 | } | |
6438 | } | |
6439 | zap_cursor_fini(&zc); | |
6440 | } | |
6441 | ||
6442 | mutex_exit(&spa->spa_props_lock); | |
6443 | if (err && err != ENOENT) { | |
6444 | return (err); | |
6445 | } | |
6446 | ||
6447 | return (0); | |
6448 | } | |
6449 | ||
c28b2279 BB |
6450 | EXPORT_SYMBOL(vdev_fault); |
6451 | EXPORT_SYMBOL(vdev_degrade); | |
6452 | EXPORT_SYMBOL(vdev_online); | |
6453 | EXPORT_SYMBOL(vdev_offline); | |
6454 | EXPORT_SYMBOL(vdev_clear); | |
1b939560 | 6455 | |
fdc2d303 | 6456 | ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, default_ms_count, UINT, ZMOD_RW, |
e4e94ca3 | 6457 | "Target number of metaslabs per top-level vdev"); |
80d52c39 | 6458 | |
fdc2d303 | 6459 | ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, default_ms_shift, UINT, ZMOD_RW, |
ff73574c RN |
6460 | "Default lower limit for metaslab size"); |
6461 | ||
6462 | ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, max_ms_shift, UINT, ZMOD_RW, | |
6463 | "Default upper limit for metaslab size"); | |
93e28d66 | 6464 | |
fdc2d303 | 6465 | ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, min_ms_count, UINT, ZMOD_RW, |
d2734cce SD |
6466 | "Minimum number of metaslabs per top-level vdev"); |
6467 | ||
fdc2d303 | 6468 | ZFS_MODULE_PARAM(zfs_vdev, zfs_vdev_, ms_count_limit, UINT, ZMOD_RW, |
e4e94ca3 DB |
6469 | "Practical upper limit of total metaslabs per top-level vdev"); |
6470 | ||
03fdcb9a | 6471 | ZFS_MODULE_PARAM(zfs, zfs_, slow_io_events_per_second, UINT, ZMOD_RW, |
ad796b8a | 6472 | "Rate limit slow IO (delay) events to this many per second"); |
80d52c39 | 6473 | |
7ada752a | 6474 | /* BEGIN CSTYLED */ |
03fdcb9a MM |
6475 | ZFS_MODULE_PARAM(zfs, zfs_, checksum_events_per_second, UINT, ZMOD_RW, |
6476 | "Rate limit checksum events to this many checksum errors per second " | |
7ada752a AZ |
6477 | "(do not set below ZED threshold)."); |
6478 | /* END CSTYLED */ | |
02638a30 | 6479 | |
03fdcb9a | 6480 | ZFS_MODULE_PARAM(zfs, zfs_, scan_ignore_errors, INT, ZMOD_RW, |
02638a30 | 6481 | "Ignore errors during resilver/scrub"); |
6cb8e530 | 6482 | |
03fdcb9a | 6483 | ZFS_MODULE_PARAM(zfs_vdev, vdev_, validate_skip, INT, ZMOD_RW, |
6cb8e530 | 6484 | "Bypass vdev_validate()"); |
53b1f5ea | 6485 | |
03fdcb9a MM |
6486 | ZFS_MODULE_PARAM(zfs, zfs_, nocacheflush, INT, ZMOD_RW, |
6487 | "Disable cache flushes"); | |
6fe3498c | 6488 | |
fdc2d303 | 6489 | ZFS_MODULE_PARAM(zfs, zfs_, embedded_slog_min_ms, UINT, ZMOD_RW, |
aa755b35 MA |
6490 | "Minimum number of metaslabs required to dedicate one for log blocks"); |
6491 | ||
7ada752a | 6492 | /* BEGIN CSTYLED */ |
6fe3498c | 6493 | ZFS_MODULE_PARAM_CALL(zfs_vdev, zfs_vdev_, min_auto_ashift, |
ab8d9c17 | 6494 | param_set_min_auto_ashift, param_get_uint, ZMOD_RW, |
6fe3498c RM |
6495 | "Minimum ashift used when creating new top-level vdevs"); |
6496 | ||
6497 | ZFS_MODULE_PARAM_CALL(zfs_vdev, zfs_vdev_, max_auto_ashift, | |
ab8d9c17 | 6498 | param_set_max_auto_ashift, param_get_uint, ZMOD_RW, |
6fe3498c RM |
6499 | "Maximum ashift used when optimizing for logical -> physical sector " |
6500 | "size on new top-level vdevs"); | |
4ea3f864 | 6501 | /* END CSTYLED */ |