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34dc7c2f BB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | /* | |
9babb374 | 22 | * Copyright 2009 Sun Microsystems, Inc. All rights reserved. |
34dc7c2f BB |
23 | * Use is subject to license terms. |
24 | */ | |
25 | ||
5ffb9d1d GW |
26 | /* |
27 | * Copyright (c) 2012 by Delphix. All rights reserved. | |
28 | */ | |
29 | ||
34dc7c2f BB |
30 | #include <sys/spa.h> |
31 | #include <sys/spa_impl.h> | |
32 | #include <sys/vdev.h> | |
33 | #include <sys/vdev_impl.h> | |
34 | #include <sys/zio.h> | |
428870ff | 35 | #include <sys/zio_checksum.h> |
34dc7c2f BB |
36 | |
37 | #include <sys/fm/fs/zfs.h> | |
38 | #include <sys/fm/protocol.h> | |
39 | #include <sys/fm/util.h> | |
40 | #include <sys/sysevent.h> | |
41 | ||
42 | /* | |
43 | * This general routine is responsible for generating all the different ZFS | |
44 | * ereports. The payload is dependent on the class, and which arguments are | |
45 | * supplied to the function: | |
46 | * | |
47 | * EREPORT POOL VDEV IO | |
48 | * block X X X | |
49 | * data X X | |
50 | * device X X | |
51 | * pool X | |
52 | * | |
53 | * If we are in a loading state, all errors are chained together by the same | |
b128c09f | 54 | * SPA-wide ENA (Error Numeric Association). |
34dc7c2f BB |
55 | * |
56 | * For isolated I/O requests, we get the ENA from the zio_t. The propagation | |
57 | * gets very complicated due to RAID-Z, gang blocks, and vdev caching. We want | |
58 | * to chain together all ereports associated with a logical piece of data. For | |
59 | * read I/Os, there are basically three 'types' of I/O, which form a roughly | |
60 | * layered diagram: | |
61 | * | |
62 | * +---------------+ | |
63 | * | Aggregate I/O | No associated logical data or device | |
64 | * +---------------+ | |
65 | * | | |
66 | * V | |
67 | * +---------------+ Reads associated with a piece of logical data. | |
68 | * | Read I/O | This includes reads on behalf of RAID-Z, | |
69 | * +---------------+ mirrors, gang blocks, retries, etc. | |
70 | * | | |
71 | * V | |
72 | * +---------------+ Reads associated with a particular device, but | |
73 | * | Physical I/O | no logical data. Issued as part of vdev caching | |
74 | * +---------------+ and I/O aggregation. | |
75 | * | |
76 | * Note that 'physical I/O' here is not the same terminology as used in the rest | |
77 | * of ZIO. Typically, 'physical I/O' simply means that there is no attached | |
78 | * blockpointer. But I/O with no associated block pointer can still be related | |
79 | * to a logical piece of data (i.e. RAID-Z requests). | |
80 | * | |
81 | * Purely physical I/O always have unique ENAs. They are not related to a | |
82 | * particular piece of logical data, and therefore cannot be chained together. | |
83 | * We still generate an ereport, but the DE doesn't correlate it with any | |
84 | * logical piece of data. When such an I/O fails, the delegated I/O requests | |
85 | * will issue a retry, which will trigger the 'real' ereport with the correct | |
86 | * ENA. | |
87 | * | |
88 | * We keep track of the ENA for a ZIO chain through the 'io_logical' member. | |
89 | * When a new logical I/O is issued, we set this to point to itself. Child I/Os | |
90 | * then inherit this pointer, so that when it is first set subsequent failures | |
b128c09f BB |
91 | * will use the same ENA. For vdev cache fill and queue aggregation I/O, |
92 | * this pointer is set to NULL, and no ereport will be generated (since it | |
93 | * doesn't actually correspond to any particular device or piece of data, | |
94 | * and the caller will always retry without caching or queueing anyway). | |
428870ff BB |
95 | * |
96 | * For checksum errors, we want to include more information about the actual | |
97 | * error which occurs. Accordingly, we build an ereport when the error is | |
98 | * noticed, but instead of sending it in immediately, we hang it off of the | |
99 | * io_cksum_report field of the logical IO. When the logical IO completes | |
100 | * (successfully or not), zfs_ereport_finish_checksum() is called with the | |
101 | * good and bad versions of the buffer (if available), and we annotate the | |
102 | * ereport with information about the differences. | |
34dc7c2f | 103 | */ |
428870ff | 104 | #ifdef _KERNEL |
26685276 BB |
105 | static void |
106 | zfs_zevent_post_cb(nvlist_t *nvl, nvlist_t *detector) | |
107 | { | |
108 | if (nvl) | |
109 | fm_nvlist_destroy(nvl, FM_NVA_FREE); | |
110 | ||
111 | if (detector) | |
112 | fm_nvlist_destroy(detector, FM_NVA_FREE); | |
113 | } | |
114 | ||
0426c168 | 115 | |
428870ff BB |
116 | static void |
117 | zfs_ereport_start(nvlist_t **ereport_out, nvlist_t **detector_out, | |
118 | const char *subclass, spa_t *spa, vdev_t *vd, zio_t *zio, | |
34dc7c2f BB |
119 | uint64_t stateoroffset, uint64_t size) |
120 | { | |
34dc7c2f | 121 | nvlist_t *ereport, *detector; |
428870ff | 122 | |
34dc7c2f BB |
123 | uint64_t ena; |
124 | char class[64]; | |
125 | ||
126 | /* | |
428870ff BB |
127 | * If we are doing a spa_tryimport() or in recovery mode, |
128 | * ignore errors. | |
34dc7c2f | 129 | */ |
428870ff BB |
130 | if (spa_load_state(spa) == SPA_LOAD_TRYIMPORT || |
131 | spa_load_state(spa) == SPA_LOAD_RECOVER) | |
34dc7c2f BB |
132 | return; |
133 | ||
134 | /* | |
135 | * If we are in the middle of opening a pool, and the previous attempt | |
136 | * failed, don't bother logging any new ereports - we're just going to | |
137 | * get the same diagnosis anyway. | |
138 | */ | |
428870ff | 139 | if (spa_load_state(spa) != SPA_LOAD_NONE && |
34dc7c2f BB |
140 | spa->spa_last_open_failed) |
141 | return; | |
142 | ||
b128c09f BB |
143 | if (zio != NULL) { |
144 | /* | |
145 | * If this is not a read or write zio, ignore the error. This | |
146 | * can occur if the DKIOCFLUSHWRITECACHE ioctl fails. | |
147 | */ | |
148 | if (zio->io_type != ZIO_TYPE_READ && | |
149 | zio->io_type != ZIO_TYPE_WRITE) | |
150 | return; | |
34dc7c2f | 151 | |
9babb374 BB |
152 | if (vd != NULL) { |
153 | /* | |
154 | * If the vdev has already been marked as failing due | |
155 | * to a failed probe, then ignore any subsequent I/O | |
156 | * errors, as the DE will automatically fault the vdev | |
157 | * on the first such failure. This also catches cases | |
158 | * where vdev_remove_wanted is set and the device has | |
159 | * not yet been asynchronously placed into the REMOVED | |
160 | * state. | |
161 | */ | |
428870ff | 162 | if (zio->io_vd == vd && !vdev_accessible(vd, zio)) |
9babb374 BB |
163 | return; |
164 | ||
165 | /* | |
166 | * Ignore checksum errors for reads from DTL regions of | |
167 | * leaf vdevs. | |
168 | */ | |
169 | if (zio->io_type == ZIO_TYPE_READ && | |
170 | zio->io_error == ECKSUM && | |
171 | vd->vdev_ops->vdev_op_leaf && | |
172 | vdev_dtl_contains(vd, DTL_MISSING, zio->io_txg, 1)) | |
173 | return; | |
174 | } | |
b128c09f | 175 | } |
34dc7c2f | 176 | |
428870ff BB |
177 | /* |
178 | * For probe failure, we want to avoid posting ereports if we've | |
179 | * already removed the device in the meantime. | |
180 | */ | |
181 | if (vd != NULL && | |
182 | strcmp(subclass, FM_EREPORT_ZFS_PROBE_FAILURE) == 0 && | |
183 | (vd->vdev_remove_wanted || vd->vdev_state == VDEV_STATE_REMOVED)) | |
184 | return; | |
185 | ||
34dc7c2f BB |
186 | if ((ereport = fm_nvlist_create(NULL)) == NULL) |
187 | return; | |
188 | ||
189 | if ((detector = fm_nvlist_create(NULL)) == NULL) { | |
190 | fm_nvlist_destroy(ereport, FM_NVA_FREE); | |
191 | return; | |
192 | } | |
193 | ||
194 | /* | |
195 | * Serialize ereport generation | |
196 | */ | |
197 | mutex_enter(&spa->spa_errlist_lock); | |
198 | ||
199 | /* | |
200 | * Determine the ENA to use for this event. If we are in a loading | |
201 | * state, use a SPA-wide ENA. Otherwise, if we are in an I/O state, use | |
202 | * a root zio-wide ENA. Otherwise, simply use a unique ENA. | |
203 | */ | |
428870ff | 204 | if (spa_load_state(spa) != SPA_LOAD_NONE) { |
34dc7c2f BB |
205 | if (spa->spa_ena == 0) |
206 | spa->spa_ena = fm_ena_generate(0, FM_ENA_FMT1); | |
207 | ena = spa->spa_ena; | |
208 | } else if (zio != NULL && zio->io_logical != NULL) { | |
209 | if (zio->io_logical->io_ena == 0) | |
210 | zio->io_logical->io_ena = | |
211 | fm_ena_generate(0, FM_ENA_FMT1); | |
212 | ena = zio->io_logical->io_ena; | |
213 | } else { | |
214 | ena = fm_ena_generate(0, FM_ENA_FMT1); | |
215 | } | |
216 | ||
217 | /* | |
218 | * Construct the full class, detector, and other standard FMA fields. | |
219 | */ | |
220 | (void) snprintf(class, sizeof (class), "%s.%s", | |
221 | ZFS_ERROR_CLASS, subclass); | |
222 | ||
223 | fm_fmri_zfs_set(detector, FM_ZFS_SCHEME_VERSION, spa_guid(spa), | |
224 | vd != NULL ? vd->vdev_guid : 0); | |
225 | ||
226 | fm_ereport_set(ereport, FM_EREPORT_VERSION, class, ena, detector, NULL); | |
227 | ||
228 | /* | |
229 | * Construct the per-ereport payload, depending on which parameters are | |
230 | * passed in. | |
231 | */ | |
232 | ||
233 | /* | |
234 | * Generic payload members common to all ereports. | |
34dc7c2f BB |
235 | */ |
236 | fm_payload_set(ereport, FM_EREPORT_PAYLOAD_ZFS_POOL, | |
b128c09f | 237 | DATA_TYPE_STRING, spa_name(spa), FM_EREPORT_PAYLOAD_ZFS_POOL_GUID, |
34dc7c2f BB |
238 | DATA_TYPE_UINT64, spa_guid(spa), |
239 | FM_EREPORT_PAYLOAD_ZFS_POOL_CONTEXT, DATA_TYPE_INT32, | |
428870ff | 240 | spa_load_state(spa), NULL); |
b128c09f BB |
241 | |
242 | if (spa != NULL) { | |
243 | fm_payload_set(ereport, FM_EREPORT_PAYLOAD_ZFS_POOL_FAILMODE, | |
244 | DATA_TYPE_STRING, | |
245 | spa_get_failmode(spa) == ZIO_FAILURE_MODE_WAIT ? | |
246 | FM_EREPORT_FAILMODE_WAIT : | |
247 | spa_get_failmode(spa) == ZIO_FAILURE_MODE_CONTINUE ? | |
248 | FM_EREPORT_FAILMODE_CONTINUE : FM_EREPORT_FAILMODE_PANIC, | |
249 | NULL); | |
250 | } | |
34dc7c2f BB |
251 | |
252 | if (vd != NULL) { | |
253 | vdev_t *pvd = vd->vdev_parent; | |
cc92e9d0 | 254 | vdev_queue_t *vq = &vd->vdev_queue; |
904ea276 BB |
255 | vdev_stat_t *vs = &vd->vdev_stat; |
256 | vdev_t *spare_vd; | |
257 | uint64_t *spare_guids; | |
258 | char **spare_paths; | |
259 | int i, spare_count; | |
34dc7c2f BB |
260 | |
261 | fm_payload_set(ereport, FM_EREPORT_PAYLOAD_ZFS_VDEV_GUID, | |
262 | DATA_TYPE_UINT64, vd->vdev_guid, | |
263 | FM_EREPORT_PAYLOAD_ZFS_VDEV_TYPE, | |
264 | DATA_TYPE_STRING, vd->vdev_ops->vdev_op_type, NULL); | |
9babb374 | 265 | if (vd->vdev_path != NULL) |
34dc7c2f BB |
266 | fm_payload_set(ereport, |
267 | FM_EREPORT_PAYLOAD_ZFS_VDEV_PATH, | |
268 | DATA_TYPE_STRING, vd->vdev_path, NULL); | |
9babb374 | 269 | if (vd->vdev_devid != NULL) |
34dc7c2f BB |
270 | fm_payload_set(ereport, |
271 | FM_EREPORT_PAYLOAD_ZFS_VDEV_DEVID, | |
272 | DATA_TYPE_STRING, vd->vdev_devid, NULL); | |
9babb374 BB |
273 | if (vd->vdev_fru != NULL) |
274 | fm_payload_set(ereport, | |
275 | FM_EREPORT_PAYLOAD_ZFS_VDEV_FRU, | |
276 | DATA_TYPE_STRING, vd->vdev_fru, NULL); | |
32a9872b GW |
277 | if (vd->vdev_ashift) |
278 | fm_payload_set(ereport, | |
279 | FM_EREPORT_PAYLOAD_ZFS_VDEV_ASHIFT, | |
280 | DATA_TYPE_UINT64, vd->vdev_ashift, NULL); | |
34dc7c2f | 281 | |
cc92e9d0 GW |
282 | if (vq != NULL) { |
283 | fm_payload_set(ereport, | |
284 | FM_EREPORT_PAYLOAD_ZFS_VDEV_COMP_TS, | |
285 | DATA_TYPE_UINT64, vq->vq_io_complete_ts, NULL); | |
286 | fm_payload_set(ereport, | |
287 | FM_EREPORT_PAYLOAD_ZFS_VDEV_DELTA_TS, | |
288 | DATA_TYPE_UINT64, vq->vq_io_delta_ts, NULL); | |
289 | } | |
290 | ||
904ea276 BB |
291 | if (vs != NULL) { |
292 | fm_payload_set(ereport, | |
293 | FM_EREPORT_PAYLOAD_ZFS_VDEV_READ_ERRORS, | |
294 | DATA_TYPE_UINT64, vs->vs_read_errors, | |
295 | FM_EREPORT_PAYLOAD_ZFS_VDEV_WRITE_ERRORS, | |
296 | DATA_TYPE_UINT64, vs->vs_write_errors, | |
297 | FM_EREPORT_PAYLOAD_ZFS_VDEV_CKSUM_ERRORS, | |
298 | DATA_TYPE_UINT64, vs->vs_checksum_errors, NULL); | |
299 | } | |
300 | ||
34dc7c2f BB |
301 | if (pvd != NULL) { |
302 | fm_payload_set(ereport, | |
303 | FM_EREPORT_PAYLOAD_ZFS_PARENT_GUID, | |
304 | DATA_TYPE_UINT64, pvd->vdev_guid, | |
305 | FM_EREPORT_PAYLOAD_ZFS_PARENT_TYPE, | |
306 | DATA_TYPE_STRING, pvd->vdev_ops->vdev_op_type, | |
307 | NULL); | |
308 | if (pvd->vdev_path) | |
309 | fm_payload_set(ereport, | |
310 | FM_EREPORT_PAYLOAD_ZFS_PARENT_PATH, | |
311 | DATA_TYPE_STRING, pvd->vdev_path, NULL); | |
312 | if (pvd->vdev_devid) | |
313 | fm_payload_set(ereport, | |
314 | FM_EREPORT_PAYLOAD_ZFS_PARENT_DEVID, | |
315 | DATA_TYPE_STRING, pvd->vdev_devid, NULL); | |
316 | } | |
904ea276 BB |
317 | |
318 | spare_count = spa->spa_spares.sav_count; | |
319 | spare_paths = kmem_zalloc(sizeof (char *) * spare_count, | |
79c76d5b | 320 | KM_SLEEP); |
904ea276 | 321 | spare_guids = kmem_zalloc(sizeof (uint64_t) * spare_count, |
79c76d5b | 322 | KM_SLEEP); |
904ea276 BB |
323 | |
324 | for (i = 0; i < spare_count; i++) { | |
325 | spare_vd = spa->spa_spares.sav_vdevs[i]; | |
326 | if (spare_vd) { | |
327 | spare_paths[i] = spare_vd->vdev_path; | |
328 | spare_guids[i] = spare_vd->vdev_guid; | |
329 | } | |
330 | } | |
331 | ||
332 | fm_payload_set(ereport, FM_EREPORT_PAYLOAD_ZFS_VDEV_SPARE_PATHS, | |
333 | DATA_TYPE_STRING_ARRAY, spare_count, spare_paths, | |
334 | FM_EREPORT_PAYLOAD_ZFS_VDEV_SPARE_GUIDS, | |
335 | DATA_TYPE_UINT64_ARRAY, spare_count, spare_guids, NULL); | |
336 | ||
337 | kmem_free(spare_guids, sizeof (uint64_t) * spare_count); | |
338 | kmem_free(spare_paths, sizeof (char *) * spare_count); | |
34dc7c2f BB |
339 | } |
340 | ||
341 | if (zio != NULL) { | |
342 | /* | |
343 | * Payload common to all I/Os. | |
344 | */ | |
345 | fm_payload_set(ereport, FM_EREPORT_PAYLOAD_ZFS_ZIO_ERR, | |
346 | DATA_TYPE_INT32, zio->io_error, NULL); | |
312c07ed BB |
347 | fm_payload_set(ereport, FM_EREPORT_PAYLOAD_ZFS_ZIO_FLAGS, |
348 | DATA_TYPE_INT32, zio->io_flags, NULL); | |
9dcb9719 BB |
349 | fm_payload_set(ereport, FM_EREPORT_PAYLOAD_ZFS_ZIO_STAGE, |
350 | DATA_TYPE_UINT32, zio->io_stage, NULL); | |
351 | fm_payload_set(ereport, FM_EREPORT_PAYLOAD_ZFS_ZIO_PIPELINE, | |
352 | DATA_TYPE_UINT32, zio->io_pipeline, NULL); | |
a69052be BB |
353 | fm_payload_set(ereport, FM_EREPORT_PAYLOAD_ZFS_ZIO_DELAY, |
354 | DATA_TYPE_UINT64, zio->io_delay, NULL); | |
cc92e9d0 GW |
355 | fm_payload_set(ereport, FM_EREPORT_PAYLOAD_ZFS_ZIO_TIMESTAMP, |
356 | DATA_TYPE_UINT64, zio->io_timestamp, NULL); | |
cc92e9d0 GW |
357 | fm_payload_set(ereport, FM_EREPORT_PAYLOAD_ZFS_ZIO_DELTA, |
358 | DATA_TYPE_UINT64, zio->io_delta, NULL); | |
34dc7c2f BB |
359 | |
360 | /* | |
361 | * If the 'size' parameter is non-zero, it indicates this is a | |
362 | * RAID-Z or other I/O where the physical offset and length are | |
363 | * provided for us, instead of within the zio_t. | |
364 | */ | |
365 | if (vd != NULL) { | |
366 | if (size) | |
367 | fm_payload_set(ereport, | |
368 | FM_EREPORT_PAYLOAD_ZFS_ZIO_OFFSET, | |
369 | DATA_TYPE_UINT64, stateoroffset, | |
370 | FM_EREPORT_PAYLOAD_ZFS_ZIO_SIZE, | |
371 | DATA_TYPE_UINT64, size, NULL); | |
372 | else | |
373 | fm_payload_set(ereport, | |
374 | FM_EREPORT_PAYLOAD_ZFS_ZIO_OFFSET, | |
375 | DATA_TYPE_UINT64, zio->io_offset, | |
376 | FM_EREPORT_PAYLOAD_ZFS_ZIO_SIZE, | |
377 | DATA_TYPE_UINT64, zio->io_size, NULL); | |
378 | } | |
379 | ||
380 | /* | |
381 | * Payload for I/Os with corresponding logical information. | |
382 | */ | |
383 | if (zio->io_logical != NULL) | |
384 | fm_payload_set(ereport, | |
385 | FM_EREPORT_PAYLOAD_ZFS_ZIO_OBJSET, | |
386 | DATA_TYPE_UINT64, | |
387 | zio->io_logical->io_bookmark.zb_objset, | |
388 | FM_EREPORT_PAYLOAD_ZFS_ZIO_OBJECT, | |
389 | DATA_TYPE_UINT64, | |
390 | zio->io_logical->io_bookmark.zb_object, | |
391 | FM_EREPORT_PAYLOAD_ZFS_ZIO_LEVEL, | |
392 | DATA_TYPE_INT64, | |
393 | zio->io_logical->io_bookmark.zb_level, | |
394 | FM_EREPORT_PAYLOAD_ZFS_ZIO_BLKID, | |
395 | DATA_TYPE_UINT64, | |
396 | zio->io_logical->io_bookmark.zb_blkid, NULL); | |
397 | } else if (vd != NULL) { | |
398 | /* | |
399 | * If we have a vdev but no zio, this is a device fault, and the | |
400 | * 'stateoroffset' parameter indicates the previous state of the | |
401 | * vdev. | |
402 | */ | |
403 | fm_payload_set(ereport, | |
404 | FM_EREPORT_PAYLOAD_ZFS_PREV_STATE, | |
405 | DATA_TYPE_UINT64, stateoroffset, NULL); | |
406 | } | |
428870ff | 407 | |
34dc7c2f BB |
408 | mutex_exit(&spa->spa_errlist_lock); |
409 | ||
428870ff BB |
410 | *ereport_out = ereport; |
411 | *detector_out = detector; | |
412 | } | |
413 | ||
414 | /* if it's <= 128 bytes, save the corruption directly */ | |
415 | #define ZFM_MAX_INLINE (128 / sizeof (uint64_t)) | |
416 | ||
417 | #define MAX_RANGES 16 | |
418 | ||
419 | typedef struct zfs_ecksum_info { | |
420 | /* histograms of set and cleared bits by bit number in a 64-bit word */ | |
421 | uint16_t zei_histogram_set[sizeof (uint64_t) * NBBY]; | |
422 | uint16_t zei_histogram_cleared[sizeof (uint64_t) * NBBY]; | |
423 | ||
424 | /* inline arrays of bits set and cleared. */ | |
425 | uint64_t zei_bits_set[ZFM_MAX_INLINE]; | |
426 | uint64_t zei_bits_cleared[ZFM_MAX_INLINE]; | |
427 | ||
428 | /* | |
429 | * for each range, the number of bits set and cleared. The Hamming | |
430 | * distance between the good and bad buffers is the sum of them all. | |
431 | */ | |
432 | uint32_t zei_range_sets[MAX_RANGES]; | |
433 | uint32_t zei_range_clears[MAX_RANGES]; | |
434 | ||
435 | struct zei_ranges { | |
436 | uint32_t zr_start; | |
437 | uint32_t zr_end; | |
438 | } zei_ranges[MAX_RANGES]; | |
439 | ||
440 | size_t zei_range_count; | |
441 | uint32_t zei_mingap; | |
442 | uint32_t zei_allowed_mingap; | |
443 | ||
444 | } zfs_ecksum_info_t; | |
445 | ||
446 | static void | |
447 | update_histogram(uint64_t value_arg, uint16_t *hist, uint32_t *count) | |
448 | { | |
449 | size_t i; | |
450 | size_t bits = 0; | |
451 | uint64_t value = BE_64(value_arg); | |
452 | ||
453 | /* We store the bits in big-endian (largest-first) order */ | |
454 | for (i = 0; i < 64; i++) { | |
455 | if (value & (1ull << i)) { | |
093911f1 CC |
456 | if (hist[63 - i] < UINT16_MAX) |
457 | hist[63 - i]++; | |
428870ff BB |
458 | ++bits; |
459 | } | |
460 | } | |
461 | /* update the count of bits changed */ | |
462 | *count += bits; | |
463 | } | |
464 | ||
465 | /* | |
466 | * We've now filled up the range array, and need to increase "mingap" and | |
467 | * shrink the range list accordingly. zei_mingap is always the smallest | |
468 | * distance between array entries, so we set the new_allowed_gap to be | |
469 | * one greater than that. We then go through the list, joining together | |
470 | * any ranges which are closer than the new_allowed_gap. | |
471 | * | |
472 | * By construction, there will be at least one. We also update zei_mingap | |
473 | * to the new smallest gap, to prepare for our next invocation. | |
474 | */ | |
475 | static void | |
26685276 | 476 | zei_shrink_ranges(zfs_ecksum_info_t *eip) |
428870ff BB |
477 | { |
478 | uint32_t mingap = UINT32_MAX; | |
479 | uint32_t new_allowed_gap = eip->zei_mingap + 1; | |
480 | ||
481 | size_t idx, output; | |
482 | size_t max = eip->zei_range_count; | |
483 | ||
484 | struct zei_ranges *r = eip->zei_ranges; | |
485 | ||
486 | ASSERT3U(eip->zei_range_count, >, 0); | |
487 | ASSERT3U(eip->zei_range_count, <=, MAX_RANGES); | |
488 | ||
489 | output = idx = 0; | |
490 | while (idx < max - 1) { | |
491 | uint32_t start = r[idx].zr_start; | |
492 | uint32_t end = r[idx].zr_end; | |
493 | ||
494 | while (idx < max - 1) { | |
26685276 | 495 | uint32_t nstart, nend, gap; |
428870ff | 496 | |
26685276 BB |
497 | idx++; |
498 | nstart = r[idx].zr_start; | |
499 | nend = r[idx].zr_end; | |
428870ff | 500 | |
26685276 | 501 | gap = nstart - end; |
428870ff BB |
502 | if (gap < new_allowed_gap) { |
503 | end = nend; | |
504 | continue; | |
505 | } | |
506 | if (gap < mingap) | |
507 | mingap = gap; | |
508 | break; | |
509 | } | |
510 | r[output].zr_start = start; | |
511 | r[output].zr_end = end; | |
512 | output++; | |
513 | } | |
514 | ASSERT3U(output, <, eip->zei_range_count); | |
515 | eip->zei_range_count = output; | |
516 | eip->zei_mingap = mingap; | |
517 | eip->zei_allowed_mingap = new_allowed_gap; | |
518 | } | |
519 | ||
520 | static void | |
26685276 | 521 | zei_add_range(zfs_ecksum_info_t *eip, int start, int end) |
428870ff BB |
522 | { |
523 | struct zei_ranges *r = eip->zei_ranges; | |
524 | size_t count = eip->zei_range_count; | |
525 | ||
526 | if (count >= MAX_RANGES) { | |
26685276 | 527 | zei_shrink_ranges(eip); |
428870ff BB |
528 | count = eip->zei_range_count; |
529 | } | |
530 | if (count == 0) { | |
531 | eip->zei_mingap = UINT32_MAX; | |
532 | eip->zei_allowed_mingap = 1; | |
533 | } else { | |
534 | int gap = start - r[count - 1].zr_end; | |
535 | ||
536 | if (gap < eip->zei_allowed_mingap) { | |
537 | r[count - 1].zr_end = end; | |
538 | return; | |
539 | } | |
540 | if (gap < eip->zei_mingap) | |
541 | eip->zei_mingap = gap; | |
542 | } | |
543 | r[count].zr_start = start; | |
544 | r[count].zr_end = end; | |
545 | eip->zei_range_count++; | |
546 | } | |
547 | ||
548 | static size_t | |
26685276 | 549 | zei_range_total_size(zfs_ecksum_info_t *eip) |
428870ff BB |
550 | { |
551 | struct zei_ranges *r = eip->zei_ranges; | |
552 | size_t count = eip->zei_range_count; | |
553 | size_t result = 0; | |
554 | size_t idx; | |
555 | ||
556 | for (idx = 0; idx < count; idx++) | |
557 | result += (r[idx].zr_end - r[idx].zr_start); | |
558 | ||
559 | return (result); | |
560 | } | |
561 | ||
562 | static zfs_ecksum_info_t * | |
563 | annotate_ecksum(nvlist_t *ereport, zio_bad_cksum_t *info, | |
564 | const uint8_t *goodbuf, const uint8_t *badbuf, size_t size, | |
565 | boolean_t drop_if_identical) | |
566 | { | |
567 | const uint64_t *good = (const uint64_t *)goodbuf; | |
568 | const uint64_t *bad = (const uint64_t *)badbuf; | |
569 | ||
570 | uint64_t allset = 0; | |
571 | uint64_t allcleared = 0; | |
572 | ||
573 | size_t nui64s = size / sizeof (uint64_t); | |
574 | ||
575 | size_t inline_size; | |
576 | int no_inline = 0; | |
577 | size_t idx; | |
578 | size_t range; | |
579 | ||
580 | size_t offset = 0; | |
581 | ssize_t start = -1; | |
582 | ||
79c76d5b | 583 | zfs_ecksum_info_t *eip = kmem_zalloc(sizeof (*eip), KM_SLEEP); |
428870ff BB |
584 | |
585 | /* don't do any annotation for injected checksum errors */ | |
586 | if (info != NULL && info->zbc_injected) | |
587 | return (eip); | |
588 | ||
589 | if (info != NULL && info->zbc_has_cksum) { | |
590 | fm_payload_set(ereport, | |
591 | FM_EREPORT_PAYLOAD_ZFS_CKSUM_EXPECTED, | |
592 | DATA_TYPE_UINT64_ARRAY, | |
593 | sizeof (info->zbc_expected) / sizeof (uint64_t), | |
594 | (uint64_t *)&info->zbc_expected, | |
595 | FM_EREPORT_PAYLOAD_ZFS_CKSUM_ACTUAL, | |
596 | DATA_TYPE_UINT64_ARRAY, | |
597 | sizeof (info->zbc_actual) / sizeof (uint64_t), | |
598 | (uint64_t *)&info->zbc_actual, | |
599 | FM_EREPORT_PAYLOAD_ZFS_CKSUM_ALGO, | |
600 | DATA_TYPE_STRING, | |
601 | info->zbc_checksum_name, | |
602 | NULL); | |
603 | ||
604 | if (info->zbc_byteswapped) { | |
605 | fm_payload_set(ereport, | |
606 | FM_EREPORT_PAYLOAD_ZFS_CKSUM_BYTESWAP, | |
607 | DATA_TYPE_BOOLEAN, 1, | |
608 | NULL); | |
609 | } | |
610 | } | |
611 | ||
612 | if (badbuf == NULL || goodbuf == NULL) | |
613 | return (eip); | |
614 | ||
428870ff BB |
615 | ASSERT3U(size, ==, nui64s * sizeof (uint64_t)); |
616 | ASSERT3U(size, <=, SPA_MAXBLOCKSIZE); | |
617 | ASSERT3U(size, <=, UINT32_MAX); | |
618 | ||
619 | /* build up the range list by comparing the two buffers. */ | |
620 | for (idx = 0; idx < nui64s; idx++) { | |
621 | if (good[idx] == bad[idx]) { | |
622 | if (start == -1) | |
623 | continue; | |
624 | ||
26685276 | 625 | zei_add_range(eip, start, idx); |
428870ff BB |
626 | start = -1; |
627 | } else { | |
628 | if (start != -1) | |
629 | continue; | |
630 | ||
631 | start = idx; | |
632 | } | |
633 | } | |
634 | if (start != -1) | |
26685276 | 635 | zei_add_range(eip, start, idx); |
428870ff BB |
636 | |
637 | /* See if it will fit in our inline buffers */ | |
26685276 | 638 | inline_size = zei_range_total_size(eip); |
428870ff BB |
639 | if (inline_size > ZFM_MAX_INLINE) |
640 | no_inline = 1; | |
641 | ||
642 | /* | |
643 | * If there is no change and we want to drop if the buffers are | |
644 | * identical, do so. | |
645 | */ | |
646 | if (inline_size == 0 && drop_if_identical) { | |
647 | kmem_free(eip, sizeof (*eip)); | |
648 | return (NULL); | |
649 | } | |
650 | ||
651 | /* | |
652 | * Now walk through the ranges, filling in the details of the | |
653 | * differences. Also convert our uint64_t-array offsets to byte | |
654 | * offsets. | |
655 | */ | |
656 | for (range = 0; range < eip->zei_range_count; range++) { | |
657 | size_t start = eip->zei_ranges[range].zr_start; | |
658 | size_t end = eip->zei_ranges[range].zr_end; | |
659 | ||
660 | for (idx = start; idx < end; idx++) { | |
661 | uint64_t set, cleared; | |
662 | ||
663 | // bits set in bad, but not in good | |
664 | set = ((~good[idx]) & bad[idx]); | |
665 | // bits set in good, but not in bad | |
666 | cleared = (good[idx] & (~bad[idx])); | |
667 | ||
668 | allset |= set; | |
669 | allcleared |= cleared; | |
670 | ||
671 | if (!no_inline) { | |
672 | ASSERT3U(offset, <, inline_size); | |
673 | eip->zei_bits_set[offset] = set; | |
674 | eip->zei_bits_cleared[offset] = cleared; | |
675 | offset++; | |
676 | } | |
677 | ||
678 | update_histogram(set, eip->zei_histogram_set, | |
679 | &eip->zei_range_sets[range]); | |
680 | update_histogram(cleared, eip->zei_histogram_cleared, | |
681 | &eip->zei_range_clears[range]); | |
682 | } | |
683 | ||
684 | /* convert to byte offsets */ | |
685 | eip->zei_ranges[range].zr_start *= sizeof (uint64_t); | |
686 | eip->zei_ranges[range].zr_end *= sizeof (uint64_t); | |
687 | } | |
688 | eip->zei_allowed_mingap *= sizeof (uint64_t); | |
689 | inline_size *= sizeof (uint64_t); | |
690 | ||
691 | /* fill in ereport */ | |
692 | fm_payload_set(ereport, | |
693 | FM_EREPORT_PAYLOAD_ZFS_BAD_OFFSET_RANGES, | |
694 | DATA_TYPE_UINT32_ARRAY, 2 * eip->zei_range_count, | |
695 | (uint32_t *)eip->zei_ranges, | |
696 | FM_EREPORT_PAYLOAD_ZFS_BAD_RANGE_MIN_GAP, | |
697 | DATA_TYPE_UINT32, eip->zei_allowed_mingap, | |
698 | FM_EREPORT_PAYLOAD_ZFS_BAD_RANGE_SETS, | |
699 | DATA_TYPE_UINT32_ARRAY, eip->zei_range_count, eip->zei_range_sets, | |
700 | FM_EREPORT_PAYLOAD_ZFS_BAD_RANGE_CLEARS, | |
701 | DATA_TYPE_UINT32_ARRAY, eip->zei_range_count, eip->zei_range_clears, | |
702 | NULL); | |
703 | ||
704 | if (!no_inline) { | |
705 | fm_payload_set(ereport, | |
706 | FM_EREPORT_PAYLOAD_ZFS_BAD_SET_BITS, | |
707 | DATA_TYPE_UINT8_ARRAY, | |
708 | inline_size, (uint8_t *)eip->zei_bits_set, | |
709 | FM_EREPORT_PAYLOAD_ZFS_BAD_CLEARED_BITS, | |
710 | DATA_TYPE_UINT8_ARRAY, | |
711 | inline_size, (uint8_t *)eip->zei_bits_cleared, | |
712 | NULL); | |
713 | } else { | |
714 | fm_payload_set(ereport, | |
715 | FM_EREPORT_PAYLOAD_ZFS_BAD_SET_HISTOGRAM, | |
716 | DATA_TYPE_UINT16_ARRAY, | |
717 | NBBY * sizeof (uint64_t), eip->zei_histogram_set, | |
718 | FM_EREPORT_PAYLOAD_ZFS_BAD_CLEARED_HISTOGRAM, | |
719 | DATA_TYPE_UINT16_ARRAY, | |
720 | NBBY * sizeof (uint64_t), eip->zei_histogram_cleared, | |
721 | NULL); | |
722 | } | |
723 | return (eip); | |
724 | } | |
725 | #endif | |
726 | ||
727 | void | |
728 | zfs_ereport_post(const char *subclass, spa_t *spa, vdev_t *vd, zio_t *zio, | |
729 | uint64_t stateoroffset, uint64_t size) | |
730 | { | |
731 | #ifdef _KERNEL | |
732 | nvlist_t *ereport = NULL; | |
733 | nvlist_t *detector = NULL; | |
734 | ||
735 | zfs_ereport_start(&ereport, &detector, | |
736 | subclass, spa, vd, zio, stateoroffset, size); | |
737 | ||
738 | if (ereport == NULL) | |
739 | return; | |
740 | ||
26685276 BB |
741 | /* Cleanup is handled by the callback function */ |
742 | zfs_zevent_post(ereport, detector, zfs_zevent_post_cb); | |
34dc7c2f BB |
743 | #endif |
744 | } | |
745 | ||
428870ff BB |
746 | void |
747 | zfs_ereport_start_checksum(spa_t *spa, vdev_t *vd, | |
748 | struct zio *zio, uint64_t offset, uint64_t length, void *arg, | |
749 | zio_bad_cksum_t *info) | |
750 | { | |
79c76d5b | 751 | zio_cksum_report_t *report = kmem_zalloc(sizeof (*report), KM_SLEEP); |
428870ff BB |
752 | |
753 | if (zio->io_vsd != NULL) | |
754 | zio->io_vsd_ops->vsd_cksum_report(zio, report, arg); | |
755 | else | |
756 | zio_vsd_default_cksum_report(zio, report, arg); | |
757 | ||
758 | /* copy the checksum failure information if it was provided */ | |
759 | if (info != NULL) { | |
79c76d5b | 760 | report->zcr_ckinfo = kmem_zalloc(sizeof (*info), KM_SLEEP); |
428870ff BB |
761 | bcopy(info, report->zcr_ckinfo, sizeof (*info)); |
762 | } | |
763 | ||
764 | report->zcr_align = 1ULL << vd->vdev_top->vdev_ashift; | |
765 | report->zcr_length = length; | |
766 | ||
767 | #ifdef _KERNEL | |
768 | zfs_ereport_start(&report->zcr_ereport, &report->zcr_detector, | |
769 | FM_EREPORT_ZFS_CHECKSUM, spa, vd, zio, offset, length); | |
770 | ||
771 | if (report->zcr_ereport == NULL) { | |
0426c168 | 772 | zfs_ereport_free_checksum(report); |
428870ff BB |
773 | return; |
774 | } | |
775 | #endif | |
776 | ||
777 | mutex_enter(&spa->spa_errlist_lock); | |
778 | report->zcr_next = zio->io_logical->io_cksum_report; | |
779 | zio->io_logical->io_cksum_report = report; | |
780 | mutex_exit(&spa->spa_errlist_lock); | |
781 | } | |
782 | ||
783 | void | |
784 | zfs_ereport_finish_checksum(zio_cksum_report_t *report, | |
785 | const void *good_data, const void *bad_data, boolean_t drop_if_identical) | |
786 | { | |
787 | #ifdef _KERNEL | |
0426c168 IH |
788 | zfs_ecksum_info_t *info; |
789 | ||
428870ff BB |
790 | info = annotate_ecksum(report->zcr_ereport, report->zcr_ckinfo, |
791 | good_data, bad_data, report->zcr_length, drop_if_identical); | |
428870ff | 792 | if (info != NULL) |
26685276 BB |
793 | zfs_zevent_post(report->zcr_ereport, |
794 | report->zcr_detector, zfs_zevent_post_cb); | |
0426c168 IH |
795 | else |
796 | zfs_zevent_post_cb(report->zcr_ereport, report->zcr_detector); | |
428870ff | 797 | |
428870ff | 798 | report->zcr_ereport = report->zcr_detector = NULL; |
428870ff BB |
799 | if (info != NULL) |
800 | kmem_free(info, sizeof (*info)); | |
801 | #endif | |
802 | } | |
803 | ||
804 | void | |
805 | zfs_ereport_free_checksum(zio_cksum_report_t *rpt) | |
806 | { | |
807 | #ifdef _KERNEL | |
808 | if (rpt->zcr_ereport != NULL) { | |
809 | fm_nvlist_destroy(rpt->zcr_ereport, | |
810 | FM_NVA_FREE); | |
811 | fm_nvlist_destroy(rpt->zcr_detector, | |
812 | FM_NVA_FREE); | |
813 | } | |
814 | #endif | |
815 | rpt->zcr_free(rpt->zcr_cbdata, rpt->zcr_cbinfo); | |
816 | ||
817 | if (rpt->zcr_ckinfo != NULL) | |
818 | kmem_free(rpt->zcr_ckinfo, sizeof (*rpt->zcr_ckinfo)); | |
819 | ||
820 | kmem_free(rpt, sizeof (*rpt)); | |
821 | } | |
822 | ||
428870ff BB |
823 | |
824 | void | |
825 | zfs_ereport_post_checksum(spa_t *spa, vdev_t *vd, | |
826 | struct zio *zio, uint64_t offset, uint64_t length, | |
827 | const void *good_data, const void *bad_data, zio_bad_cksum_t *zbc) | |
828 | { | |
829 | #ifdef _KERNEL | |
830 | nvlist_t *ereport = NULL; | |
831 | nvlist_t *detector = NULL; | |
832 | zfs_ecksum_info_t *info; | |
833 | ||
834 | zfs_ereport_start(&ereport, &detector, | |
835 | FM_EREPORT_ZFS_CHECKSUM, spa, vd, zio, offset, length); | |
836 | ||
837 | if (ereport == NULL) | |
838 | return; | |
839 | ||
840 | info = annotate_ecksum(ereport, zbc, good_data, bad_data, length, | |
841 | B_FALSE); | |
842 | ||
26685276 BB |
843 | if (info != NULL) { |
844 | zfs_zevent_post(ereport, detector, zfs_zevent_post_cb); | |
428870ff | 845 | kmem_free(info, sizeof (*info)); |
26685276 | 846 | } |
428870ff BB |
847 | #endif |
848 | } | |
849 | ||
34dc7c2f | 850 | static void |
d02ca379 DB |
851 | zfs_post_common(spa_t *spa, vdev_t *vd, const char *type, const char *name, |
852 | nvlist_t *aux) | |
34dc7c2f BB |
853 | { |
854 | #ifdef _KERNEL | |
855 | nvlist_t *resource; | |
856 | char class[64]; | |
857 | ||
428870ff BB |
858 | if (spa_load_state(spa) == SPA_LOAD_TRYIMPORT) |
859 | return; | |
860 | ||
34dc7c2f BB |
861 | if ((resource = fm_nvlist_create(NULL)) == NULL) |
862 | return; | |
863 | ||
fb390aaf | 864 | (void) snprintf(class, sizeof (class), "%s.%s.%s", type, |
34dc7c2f | 865 | ZFS_ERROR_CLASS, name); |
904ea276 BB |
866 | VERIFY0(nvlist_add_uint8(resource, FM_VERSION, FM_RSRC_VERSION)); |
867 | VERIFY0(nvlist_add_string(resource, FM_CLASS, class)); | |
868 | VERIFY0(nvlist_add_uint64(resource, | |
869 | FM_EREPORT_PAYLOAD_ZFS_POOL_GUID, spa_guid(spa))); | |
870 | VERIFY0(nvlist_add_int32(resource, | |
871 | FM_EREPORT_PAYLOAD_ZFS_POOL_CONTEXT, spa_load_state(spa))); | |
872 | ||
26685276 | 873 | if (vd) { |
904ea276 BB |
874 | VERIFY0(nvlist_add_uint64(resource, |
875 | FM_EREPORT_PAYLOAD_ZFS_VDEV_GUID, vd->vdev_guid)); | |
876 | VERIFY0(nvlist_add_uint64(resource, | |
877 | FM_EREPORT_PAYLOAD_ZFS_VDEV_STATE, vd->vdev_state)); | |
fb390aaf HR |
878 | if (vd->vdev_path != NULL) |
879 | VERIFY0(nvlist_add_string(resource, | |
880 | FM_EREPORT_PAYLOAD_ZFS_VDEV_PATH, vd->vdev_path)); | |
881 | if (vd->vdev_devid != NULL) | |
882 | VERIFY0(nvlist_add_string(resource, | |
883 | FM_EREPORT_PAYLOAD_ZFS_VDEV_DEVID, vd->vdev_devid)); | |
884 | if (vd->vdev_fru != NULL) | |
885 | VERIFY0(nvlist_add_string(resource, | |
886 | FM_EREPORT_PAYLOAD_ZFS_VDEV_FRU, vd->vdev_fru)); | |
d02ca379 DB |
887 | /* also copy any optional payload data */ |
888 | if (aux) { | |
889 | nvpair_t *elem = NULL; | |
890 | ||
891 | while ((elem = nvlist_next_nvpair(aux, elem)) != NULL) | |
892 | (void) nvlist_add_nvpair(resource, elem); | |
893 | } | |
26685276 | 894 | } |
34dc7c2f | 895 | |
26685276 | 896 | zfs_zevent_post(resource, NULL, zfs_zevent_post_cb); |
34dc7c2f BB |
897 | #endif |
898 | } | |
899 | ||
34dc7c2f BB |
900 | /* |
901 | * The 'resource.fs.zfs.removed' event is an internal signal that the given vdev | |
902 | * has been removed from the system. This will cause the DE to ignore any | |
903 | * recent I/O errors, inferring that they are due to the asynchronous device | |
904 | * removal. | |
905 | */ | |
906 | void | |
907 | zfs_post_remove(spa_t *spa, vdev_t *vd) | |
908 | { | |
d02ca379 | 909 | zfs_post_common(spa, vd, FM_RSRC_CLASS, FM_RESOURCE_REMOVED, NULL); |
34dc7c2f BB |
910 | } |
911 | ||
912 | /* | |
913 | * The 'resource.fs.zfs.autoreplace' event is an internal signal that the pool | |
914 | * has the 'autoreplace' property set, and therefore any broken vdevs will be | |
915 | * handled by higher level logic, and no vdev fault should be generated. | |
916 | */ | |
917 | void | |
918 | zfs_post_autoreplace(spa_t *spa, vdev_t *vd) | |
919 | { | |
d02ca379 | 920 | zfs_post_common(spa, vd, FM_RSRC_CLASS, FM_RESOURCE_AUTOREPLACE, NULL); |
34dc7c2f | 921 | } |
428870ff BB |
922 | |
923 | /* | |
924 | * The 'resource.fs.zfs.statechange' event is an internal signal that the | |
925 | * given vdev has transitioned its state to DEGRADED or HEALTHY. This will | |
926 | * cause the retire agent to repair any outstanding fault management cases | |
927 | * open because the device was not found (fault.fs.zfs.device). | |
928 | */ | |
929 | void | |
d02ca379 | 930 | zfs_post_state_change(spa_t *spa, vdev_t *vd, uint64_t laststate) |
428870ff | 931 | { |
d02ca379 DB |
932 | #ifdef _KERNEL |
933 | nvlist_t *aux; | |
934 | ||
935 | /* | |
936 | * Add optional supplemental keys to payload | |
937 | */ | |
938 | aux = fm_nvlist_create(NULL); | |
939 | if (vd && aux) { | |
940 | if (vd->vdev_physpath) { | |
941 | (void) nvlist_add_string(aux, | |
942 | FM_EREPORT_PAYLOAD_ZFS_VDEV_PHYSPATH, | |
943 | vd->vdev_physpath); | |
944 | } | |
945 | (void) nvlist_add_uint64(aux, | |
946 | FM_EREPORT_PAYLOAD_ZFS_VDEV_LASTSTATE, laststate); | |
947 | } | |
948 | ||
949 | zfs_post_common(spa, vd, FM_RSRC_CLASS, FM_RESOURCE_STATECHANGE, | |
950 | aux); | |
951 | ||
952 | if (aux) | |
953 | fm_nvlist_destroy(aux, FM_NVA_FREE); | |
954 | #endif | |
fb390aaf HR |
955 | } |
956 | ||
957 | /* | |
958 | * The 'sysevent.fs.zfs.*' events are signals posted to notify user space of | |
959 | * change in the pool. All sysevents are listed in sys/sysevent/eventdefs.h | |
960 | * and are designed to be consumed by the ZFS Event Daemon (ZED). For | |
961 | * additional details refer to the zed(8) man page. | |
962 | */ | |
963 | void | |
964 | zfs_post_sysevent(spa_t *spa, vdev_t *vd, const char *name) | |
965 | { | |
d02ca379 | 966 | zfs_post_common(spa, vd, FM_SYSEVENT_CLASS, name, NULL); |
428870ff | 967 | } |
26685276 BB |
968 | |
969 | #if defined(_KERNEL) && defined(HAVE_SPL) | |
970 | EXPORT_SYMBOL(zfs_ereport_post); | |
971 | EXPORT_SYMBOL(zfs_ereport_post_checksum); | |
972 | EXPORT_SYMBOL(zfs_post_remove); | |
973 | EXPORT_SYMBOL(zfs_post_autoreplace); | |
974 | EXPORT_SYMBOL(zfs_post_state_change); | |
fb390aaf | 975 | EXPORT_SYMBOL(zfs_post_sysevent); |
26685276 | 976 | #endif /* _KERNEL */ |