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34dc7c2f BB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | ||
22 | /* | |
428870ff | 23 | * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved. |
3d45fdd6 | 24 | * Copyright (c) 2011, 2014 by Delphix. All rights reserved. |
34dc7c2f BB |
25 | */ |
26 | ||
34dc7c2f BB |
27 | #include <sys/spa.h> |
28 | #include <sys/spa_impl.h> | |
29 | #include <sys/zap.h> | |
30 | #include <sys/dsl_synctask.h> | |
31 | #include <sys/dmu_tx.h> | |
32 | #include <sys/dmu_objset.h> | |
6f1ffb06 MA |
33 | #include <sys/dsl_dataset.h> |
34 | #include <sys/dsl_dir.h> | |
34dc7c2f BB |
35 | #include <sys/cmn_err.h> |
36 | #include <sys/sunddi.h> | |
6f1ffb06 | 37 | #include <sys/cred.h> |
428870ff | 38 | #include "zfs_comutil.h" |
34dc7c2f BB |
39 | #ifdef _KERNEL |
40 | #include <sys/zone.h> | |
41 | #endif | |
42 | ||
43 | /* | |
44 | * Routines to manage the on-disk history log. | |
45 | * | |
46 | * The history log is stored as a dmu object containing | |
47 | * <packed record length, record nvlist> tuples. | |
48 | * | |
49 | * Where "record nvlist" is a nvlist containing uint64_ts and strings, and | |
50 | * "packed record length" is the packed length of the "record nvlist" stored | |
51 | * as a little endian uint64_t. | |
52 | * | |
53 | * The log is implemented as a ring buffer, though the original creation | |
54 | * of the pool ('zpool create') is never overwritten. | |
55 | * | |
56 | * The history log is tracked as object 'spa_t::spa_history'. The bonus buffer | |
57 | * of 'spa_history' stores the offsets for logging/retrieving history as | |
58 | * 'spa_history_phys_t'. 'sh_pool_create_len' is the ending offset in bytes of | |
59 | * where the 'zpool create' record is stored. This allows us to never | |
60 | * overwrite the original creation of the pool. 'sh_phys_max_off' is the | |
61 | * physical ending offset in bytes of the log. This tells you the length of | |
62 | * the buffer. 'sh_eof' is the logical EOF (in bytes). Whenever a record | |
63 | * is added, 'sh_eof' is incremented by the the size of the record. | |
64 | * 'sh_eof' is never decremented. 'sh_bof' is the logical BOF (in bytes). | |
65 | * This is where the consumer should start reading from after reading in | |
66 | * the 'zpool create' portion of the log. | |
67 | * | |
68 | * 'sh_records_lost' keeps track of how many records have been overwritten | |
69 | * and permanently lost. | |
70 | */ | |
71 | ||
72 | /* convert a logical offset to physical */ | |
73 | static uint64_t | |
74 | spa_history_log_to_phys(uint64_t log_off, spa_history_phys_t *shpp) | |
75 | { | |
76 | uint64_t phys_len; | |
77 | ||
78 | phys_len = shpp->sh_phys_max_off - shpp->sh_pool_create_len; | |
79 | return ((log_off - shpp->sh_pool_create_len) % phys_len | |
80 | + shpp->sh_pool_create_len); | |
81 | } | |
82 | ||
83 | void | |
84 | spa_history_create_obj(spa_t *spa, dmu_tx_t *tx) | |
85 | { | |
86 | dmu_buf_t *dbp; | |
87 | spa_history_phys_t *shpp; | |
88 | objset_t *mos = spa->spa_meta_objset; | |
89 | ||
90 | ASSERT(spa->spa_history == 0); | |
91 | spa->spa_history = dmu_object_alloc(mos, DMU_OT_SPA_HISTORY, | |
92 | SPA_MAXBLOCKSIZE, DMU_OT_SPA_HISTORY_OFFSETS, | |
93 | sizeof (spa_history_phys_t), tx); | |
94 | ||
95 | VERIFY(zap_add(mos, DMU_POOL_DIRECTORY_OBJECT, | |
96 | DMU_POOL_HISTORY, sizeof (uint64_t), 1, | |
97 | &spa->spa_history, tx) == 0); | |
98 | ||
99 | VERIFY(0 == dmu_bonus_hold(mos, spa->spa_history, FTAG, &dbp)); | |
100 | ASSERT(dbp->db_size >= sizeof (spa_history_phys_t)); | |
101 | ||
102 | shpp = dbp->db_data; | |
103 | dmu_buf_will_dirty(dbp, tx); | |
104 | ||
105 | /* | |
106 | * Figure out maximum size of history log. We set it at | |
330d06f9 | 107 | * 0.1% of pool size, with a max of 1G and min of 128KB. |
34dc7c2f | 108 | */ |
428870ff | 109 | shpp->sh_phys_max_off = |
330d06f9 MA |
110 | metaslab_class_get_dspace(spa_normal_class(spa)) / 1000; |
111 | shpp->sh_phys_max_off = MIN(shpp->sh_phys_max_off, 1<<30); | |
34dc7c2f BB |
112 | shpp->sh_phys_max_off = MAX(shpp->sh_phys_max_off, 128<<10); |
113 | ||
114 | dmu_buf_rele(dbp, FTAG); | |
115 | } | |
116 | ||
117 | /* | |
118 | * Change 'sh_bof' to the beginning of the next record. | |
119 | */ | |
120 | static int | |
121 | spa_history_advance_bof(spa_t *spa, spa_history_phys_t *shpp) | |
122 | { | |
123 | objset_t *mos = spa->spa_meta_objset; | |
124 | uint64_t firstread, reclen, phys_bof; | |
125 | char buf[sizeof (reclen)]; | |
126 | int err; | |
127 | ||
128 | phys_bof = spa_history_log_to_phys(shpp->sh_bof, shpp); | |
129 | firstread = MIN(sizeof (reclen), shpp->sh_phys_max_off - phys_bof); | |
130 | ||
131 | if ((err = dmu_read(mos, spa->spa_history, phys_bof, firstread, | |
9babb374 | 132 | buf, DMU_READ_PREFETCH)) != 0) |
34dc7c2f BB |
133 | return (err); |
134 | if (firstread != sizeof (reclen)) { | |
135 | if ((err = dmu_read(mos, spa->spa_history, | |
136 | shpp->sh_pool_create_len, sizeof (reclen) - firstread, | |
9babb374 | 137 | buf + firstread, DMU_READ_PREFETCH)) != 0) |
34dc7c2f BB |
138 | return (err); |
139 | } | |
140 | ||
141 | reclen = LE_64(*((uint64_t *)buf)); | |
142 | shpp->sh_bof += reclen + sizeof (reclen); | |
143 | shpp->sh_records_lost++; | |
144 | return (0); | |
145 | } | |
146 | ||
147 | static int | |
148 | spa_history_write(spa_t *spa, void *buf, uint64_t len, spa_history_phys_t *shpp, | |
149 | dmu_tx_t *tx) | |
150 | { | |
151 | uint64_t firstwrite, phys_eof; | |
152 | objset_t *mos = spa->spa_meta_objset; | |
153 | int err; | |
154 | ||
155 | ASSERT(MUTEX_HELD(&spa->spa_history_lock)); | |
156 | ||
157 | /* see if we need to reset logical BOF */ | |
158 | while (shpp->sh_phys_max_off - shpp->sh_pool_create_len - | |
159 | (shpp->sh_eof - shpp->sh_bof) <= len) { | |
160 | if ((err = spa_history_advance_bof(spa, shpp)) != 0) { | |
161 | return (err); | |
162 | } | |
163 | } | |
164 | ||
165 | phys_eof = spa_history_log_to_phys(shpp->sh_eof, shpp); | |
166 | firstwrite = MIN(len, shpp->sh_phys_max_off - phys_eof); | |
167 | shpp->sh_eof += len; | |
168 | dmu_write(mos, spa->spa_history, phys_eof, firstwrite, buf, tx); | |
169 | ||
170 | len -= firstwrite; | |
171 | if (len > 0) { | |
172 | /* write out the rest at the beginning of physical file */ | |
173 | dmu_write(mos, spa->spa_history, shpp->sh_pool_create_len, | |
174 | len, (char *)buf + firstwrite, tx); | |
175 | } | |
176 | ||
177 | return (0); | |
178 | } | |
179 | ||
180 | static char * | |
0bc8fd78 | 181 | spa_history_zone(void) |
34dc7c2f BB |
182 | { |
183 | #ifdef _KERNEL | |
c28b2279 BB |
184 | #ifdef HAVE_SPL |
185 | return ("linux"); | |
186 | #else | |
34dc7c2f | 187 | return (curproc->p_zone->zone_name); |
c28b2279 | 188 | #endif |
34dc7c2f | 189 | #else |
6f1ffb06 | 190 | return (NULL); |
34dc7c2f BB |
191 | #endif |
192 | } | |
193 | ||
194 | /* | |
195 | * Write out a history event. | |
196 | */ | |
428870ff | 197 | /*ARGSUSED*/ |
34dc7c2f | 198 | static void |
13fe0198 | 199 | spa_history_log_sync(void *arg, dmu_tx_t *tx) |
34dc7c2f | 200 | { |
13fe0198 MA |
201 | nvlist_t *nvl = arg; |
202 | spa_t *spa = dmu_tx_pool(tx)->dp_spa; | |
34dc7c2f BB |
203 | objset_t *mos = spa->spa_meta_objset; |
204 | dmu_buf_t *dbp; | |
205 | spa_history_phys_t *shpp; | |
206 | size_t reclen; | |
207 | uint64_t le_len; | |
34dc7c2f BB |
208 | char *record_packed = NULL; |
209 | int ret; | |
210 | ||
211 | /* | |
212 | * If we have an older pool that doesn't have a command | |
213 | * history object, create it now. | |
214 | */ | |
215 | mutex_enter(&spa->spa_history_lock); | |
216 | if (!spa->spa_history) | |
217 | spa_history_create_obj(spa, tx); | |
218 | mutex_exit(&spa->spa_history_lock); | |
219 | ||
220 | /* | |
221 | * Get the offset of where we need to write via the bonus buffer. | |
222 | * Update the offset when the write completes. | |
223 | */ | |
13fe0198 | 224 | VERIFY0(dmu_bonus_hold(mos, spa->spa_history, FTAG, &dbp)); |
34dc7c2f BB |
225 | shpp = dbp->db_data; |
226 | ||
227 | dmu_buf_will_dirty(dbp, tx); | |
228 | ||
229 | #ifdef ZFS_DEBUG | |
230 | { | |
231 | dmu_object_info_t doi; | |
232 | dmu_object_info_from_db(dbp, &doi); | |
233 | ASSERT3U(doi.doi_bonus_type, ==, DMU_OT_SPA_HISTORY_OFFSETS); | |
234 | } | |
235 | #endif | |
236 | ||
6f1ffb06 | 237 | fnvlist_add_uint64(nvl, ZPOOL_HIST_TIME, gethrestime_sec()); |
f0e324f2 BB |
238 | fnvlist_add_string(nvl, ZPOOL_HIST_HOST, utsname()->nodename); |
239 | ||
6f1ffb06 MA |
240 | if (nvlist_exists(nvl, ZPOOL_HIST_CMD)) { |
241 | zfs_dbgmsg("command: %s", | |
242 | fnvlist_lookup_string(nvl, ZPOOL_HIST_CMD)); | |
243 | } else if (nvlist_exists(nvl, ZPOOL_HIST_INT_NAME)) { | |
244 | if (nvlist_exists(nvl, ZPOOL_HIST_DSNAME)) { | |
245 | zfs_dbgmsg("txg %lld %s %s (id %llu) %s", | |
246 | fnvlist_lookup_uint64(nvl, ZPOOL_HIST_TXG), | |
247 | fnvlist_lookup_string(nvl, ZPOOL_HIST_INT_NAME), | |
248 | fnvlist_lookup_string(nvl, ZPOOL_HIST_DSNAME), | |
249 | fnvlist_lookup_uint64(nvl, ZPOOL_HIST_DSID), | |
250 | fnvlist_lookup_string(nvl, ZPOOL_HIST_INT_STR)); | |
251 | } else { | |
252 | zfs_dbgmsg("txg %lld %s %s", | |
253 | fnvlist_lookup_uint64(nvl, ZPOOL_HIST_TXG), | |
254 | fnvlist_lookup_string(nvl, ZPOOL_HIST_INT_NAME), | |
255 | fnvlist_lookup_string(nvl, ZPOOL_HIST_INT_STR)); | |
256 | } | |
257 | } else if (nvlist_exists(nvl, ZPOOL_HIST_IOCTL)) { | |
258 | zfs_dbgmsg("ioctl %s", | |
259 | fnvlist_lookup_string(nvl, ZPOOL_HIST_IOCTL)); | |
34dc7c2f BB |
260 | } |
261 | ||
6f1ffb06 | 262 | VERIFY3U(nvlist_pack(nvl, &record_packed, &reclen, NV_ENCODE_NATIVE, |
79c76d5b | 263 | KM_SLEEP), ==, 0); |
34dc7c2f BB |
264 | |
265 | mutex_enter(&spa->spa_history_lock); | |
34dc7c2f BB |
266 | |
267 | /* write out the packed length as little endian */ | |
268 | le_len = LE_64((uint64_t)reclen); | |
269 | ret = spa_history_write(spa, &le_len, sizeof (le_len), shpp, tx); | |
270 | if (!ret) | |
271 | ret = spa_history_write(spa, record_packed, reclen, shpp, tx); | |
272 | ||
6f1ffb06 MA |
273 | /* The first command is the create, which we keep forever */ |
274 | if (ret == 0 && shpp->sh_pool_create_len == 0 && | |
275 | nvlist_exists(nvl, ZPOOL_HIST_CMD)) { | |
276 | shpp->sh_pool_create_len = shpp->sh_bof = shpp->sh_eof; | |
34dc7c2f BB |
277 | } |
278 | ||
279 | mutex_exit(&spa->spa_history_lock); | |
6f1ffb06 | 280 | fnvlist_pack_free(record_packed, reclen); |
34dc7c2f | 281 | dmu_buf_rele(dbp, FTAG); |
6f1ffb06 | 282 | fnvlist_free(nvl); |
34dc7c2f BB |
283 | } |
284 | ||
285 | /* | |
286 | * Write out a history event. | |
287 | */ | |
288 | int | |
6f1ffb06 MA |
289 | spa_history_log(spa_t *spa, const char *msg) |
290 | { | |
291 | int err; | |
79c76d5b | 292 | nvlist_t *nvl = fnvlist_alloc(); |
6f1ffb06 MA |
293 | |
294 | fnvlist_add_string(nvl, ZPOOL_HIST_CMD, msg); | |
295 | err = spa_history_log_nvl(spa, nvl); | |
296 | fnvlist_free(nvl); | |
297 | return (err); | |
298 | } | |
299 | ||
300 | int | |
301 | spa_history_log_nvl(spa_t *spa, nvlist_t *nvl) | |
34dc7c2f | 302 | { |
428870ff BB |
303 | int err = 0; |
304 | dmu_tx_t *tx; | |
6f1ffb06 | 305 | nvlist_t *nvarg; |
34dc7c2f | 306 | |
6f1ffb06 | 307 | if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY || !spa_writeable(spa)) |
2e528b49 | 308 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 309 | |
428870ff BB |
310 | tx = dmu_tx_create_dd(spa_get_dsl(spa)->dp_mos_dir); |
311 | err = dmu_tx_assign(tx, TXG_WAIT); | |
312 | if (err) { | |
313 | dmu_tx_abort(tx); | |
314 | return (err); | |
315 | } | |
316 | ||
79c76d5b | 317 | VERIFY0(nvlist_dup(nvl, &nvarg, KM_SLEEP)); |
6f1ffb06 MA |
318 | if (spa_history_zone() != NULL) { |
319 | fnvlist_add_string(nvarg, ZPOOL_HIST_ZONE, | |
320 | spa_history_zone()); | |
321 | } | |
322 | fnvlist_add_uint64(nvarg, ZPOOL_HIST_WHO, crgetruid(CRED())); | |
428870ff BB |
323 | |
324 | /* Kick this off asynchronously; errors are ignored. */ | |
13fe0198 | 325 | dsl_sync_task_nowait(spa_get_dsl(spa), spa_history_log_sync, |
3d45fdd6 | 326 | nvarg, 0, ZFS_SPACE_CHECK_NONE, tx); |
428870ff BB |
327 | dmu_tx_commit(tx); |
328 | ||
6f1ffb06 | 329 | /* spa_history_log_sync will free nvl */ |
428870ff | 330 | return (err); |
6f1ffb06 | 331 | |
34dc7c2f BB |
332 | } |
333 | ||
334 | /* | |
335 | * Read out the command history. | |
336 | */ | |
337 | int | |
338 | spa_history_get(spa_t *spa, uint64_t *offp, uint64_t *len, char *buf) | |
339 | { | |
340 | objset_t *mos = spa->spa_meta_objset; | |
341 | dmu_buf_t *dbp; | |
342 | uint64_t read_len, phys_read_off, phys_eof; | |
343 | uint64_t leftover = 0; | |
344 | spa_history_phys_t *shpp; | |
345 | int err; | |
346 | ||
347 | /* | |
6f1ffb06 | 348 | * If the command history doesn't exist (older pool), |
34dc7c2f BB |
349 | * that's ok, just return ENOENT. |
350 | */ | |
351 | if (!spa->spa_history) | |
2e528b49 | 352 | return (SET_ERROR(ENOENT)); |
34dc7c2f | 353 | |
428870ff BB |
354 | /* |
355 | * The history is logged asynchronously, so when they request | |
356 | * the first chunk of history, make sure everything has been | |
357 | * synced to disk so that we get it. | |
358 | */ | |
359 | if (*offp == 0 && spa_writeable(spa)) | |
360 | txg_wait_synced(spa_get_dsl(spa), 0); | |
361 | ||
34dc7c2f BB |
362 | if ((err = dmu_bonus_hold(mos, spa->spa_history, FTAG, &dbp)) != 0) |
363 | return (err); | |
364 | shpp = dbp->db_data; | |
365 | ||
366 | #ifdef ZFS_DEBUG | |
367 | { | |
368 | dmu_object_info_t doi; | |
369 | dmu_object_info_from_db(dbp, &doi); | |
370 | ASSERT3U(doi.doi_bonus_type, ==, DMU_OT_SPA_HISTORY_OFFSETS); | |
371 | } | |
372 | #endif | |
373 | ||
374 | mutex_enter(&spa->spa_history_lock); | |
375 | phys_eof = spa_history_log_to_phys(shpp->sh_eof, shpp); | |
376 | ||
377 | if (*offp < shpp->sh_pool_create_len) { | |
378 | /* read in just the zpool create history */ | |
379 | phys_read_off = *offp; | |
380 | read_len = MIN(*len, shpp->sh_pool_create_len - | |
381 | phys_read_off); | |
382 | } else { | |
383 | /* | |
384 | * Need to reset passed in offset to BOF if the passed in | |
385 | * offset has since been overwritten. | |
386 | */ | |
387 | *offp = MAX(*offp, shpp->sh_bof); | |
388 | phys_read_off = spa_history_log_to_phys(*offp, shpp); | |
389 | ||
390 | /* | |
391 | * Read up to the minimum of what the user passed down or | |
392 | * the EOF (physical or logical). If we hit physical EOF, | |
393 | * use 'leftover' to read from the physical BOF. | |
394 | */ | |
395 | if (phys_read_off <= phys_eof) { | |
396 | read_len = MIN(*len, phys_eof - phys_read_off); | |
397 | } else { | |
398 | read_len = MIN(*len, | |
399 | shpp->sh_phys_max_off - phys_read_off); | |
400 | if (phys_read_off + *len > shpp->sh_phys_max_off) { | |
401 | leftover = MIN(*len - read_len, | |
402 | phys_eof - shpp->sh_pool_create_len); | |
403 | } | |
404 | } | |
405 | } | |
406 | ||
407 | /* offset for consumer to use next */ | |
408 | *offp += read_len + leftover; | |
409 | ||
410 | /* tell the consumer how much you actually read */ | |
411 | *len = read_len + leftover; | |
412 | ||
413 | if (read_len == 0) { | |
414 | mutex_exit(&spa->spa_history_lock); | |
415 | dmu_buf_rele(dbp, FTAG); | |
416 | return (0); | |
417 | } | |
418 | ||
9babb374 BB |
419 | err = dmu_read(mos, spa->spa_history, phys_read_off, read_len, buf, |
420 | DMU_READ_PREFETCH); | |
34dc7c2f BB |
421 | if (leftover && err == 0) { |
422 | err = dmu_read(mos, spa->spa_history, shpp->sh_pool_create_len, | |
9babb374 | 423 | leftover, buf + read_len, DMU_READ_PREFETCH); |
34dc7c2f BB |
424 | } |
425 | mutex_exit(&spa->spa_history_lock); | |
426 | ||
427 | dmu_buf_rele(dbp, FTAG); | |
428 | return (err); | |
429 | } | |
430 | ||
6f1ffb06 MA |
431 | /* |
432 | * The nvlist will be consumed by this call. | |
433 | */ | |
45d1cae3 | 434 | static void |
6f1ffb06 | 435 | log_internal(nvlist_t *nvl, const char *operation, spa_t *spa, |
428870ff | 436 | dmu_tx_t *tx, const char *fmt, va_list adx) |
34dc7c2f | 437 | { |
6f1ffb06 | 438 | char *msg; |
34dc7c2f | 439 | |
b128c09f BB |
440 | /* |
441 | * If this is part of creating a pool, not everything is | |
442 | * initialized yet, so don't bother logging the internal events. | |
6f1ffb06 | 443 | * Likewise if the pool is not writeable. |
b128c09f | 444 | */ |
6f1ffb06 MA |
445 | if (tx->tx_txg == TXG_INITIAL || !spa_writeable(spa)) { |
446 | fnvlist_free(nvl); | |
b128c09f | 447 | return; |
6f1ffb06 | 448 | } |
b128c09f | 449 | |
841c9d43 | 450 | msg = kmem_vasprintf(fmt, adx); |
6f1ffb06 | 451 | fnvlist_add_string(nvl, ZPOOL_HIST_INT_STR, msg); |
841c9d43 | 452 | strfree(msg); |
6f1ffb06 MA |
453 | |
454 | fnvlist_add_string(nvl, ZPOOL_HIST_INT_NAME, operation); | |
455 | fnvlist_add_uint64(nvl, ZPOOL_HIST_TXG, tx->tx_txg); | |
34dc7c2f BB |
456 | |
457 | if (dmu_tx_is_syncing(tx)) { | |
13fe0198 | 458 | spa_history_log_sync(nvl, tx); |
34dc7c2f | 459 | } else { |
13fe0198 | 460 | dsl_sync_task_nowait(spa_get_dsl(spa), |
3d45fdd6 | 461 | spa_history_log_sync, nvl, 0, ZFS_SPACE_CHECK_NONE, tx); |
34dc7c2f | 462 | } |
6f1ffb06 | 463 | /* spa_history_log_sync() will free nvl */ |
34dc7c2f | 464 | } |
45d1cae3 BB |
465 | |
466 | void | |
6f1ffb06 | 467 | spa_history_log_internal(spa_t *spa, const char *operation, |
428870ff | 468 | dmu_tx_t *tx, const char *fmt, ...) |
45d1cae3 BB |
469 | { |
470 | dmu_tx_t *htx = tx; | |
471 | va_list adx; | |
472 | ||
473 | /* create a tx if we didn't get one */ | |
474 | if (tx == NULL) { | |
475 | htx = dmu_tx_create_dd(spa_get_dsl(spa)->dp_mos_dir); | |
476 | if (dmu_tx_assign(htx, TXG_WAIT) != 0) { | |
477 | dmu_tx_abort(htx); | |
478 | return; | |
479 | } | |
480 | } | |
481 | ||
482 | va_start(adx, fmt); | |
79c76d5b | 483 | log_internal(fnvlist_alloc(), operation, spa, htx, fmt, adx); |
45d1cae3 BB |
484 | va_end(adx); |
485 | ||
486 | /* if we didn't get a tx from the caller, commit the one we made */ | |
487 | if (tx == NULL) | |
488 | dmu_tx_commit(htx); | |
489 | } | |
490 | ||
491 | void | |
6f1ffb06 MA |
492 | spa_history_log_internal_ds(dsl_dataset_t *ds, const char *operation, |
493 | dmu_tx_t *tx, const char *fmt, ...) | |
494 | { | |
495 | va_list adx; | |
496 | char namebuf[MAXNAMELEN]; | |
79c76d5b | 497 | nvlist_t *nvl = fnvlist_alloc(); |
6f1ffb06 MA |
498 | |
499 | ASSERT(tx != NULL); | |
500 | ||
501 | dsl_dataset_name(ds, namebuf); | |
6f1ffb06 MA |
502 | fnvlist_add_string(nvl, ZPOOL_HIST_DSNAME, namebuf); |
503 | fnvlist_add_uint64(nvl, ZPOOL_HIST_DSID, ds->ds_object); | |
504 | ||
505 | va_start(adx, fmt); | |
506 | log_internal(nvl, operation, dsl_dataset_get_spa(ds), tx, fmt, adx); | |
507 | va_end(adx); | |
508 | } | |
509 | ||
510 | void | |
511 | spa_history_log_internal_dd(dsl_dir_t *dd, const char *operation, | |
512 | dmu_tx_t *tx, const char *fmt, ...) | |
513 | { | |
514 | va_list adx; | |
515 | char namebuf[MAXNAMELEN]; | |
79c76d5b | 516 | nvlist_t *nvl = fnvlist_alloc(); |
6f1ffb06 MA |
517 | |
518 | ASSERT(tx != NULL); | |
519 | ||
520 | dsl_dir_name(dd, namebuf); | |
6f1ffb06 MA |
521 | fnvlist_add_string(nvl, ZPOOL_HIST_DSNAME, namebuf); |
522 | fnvlist_add_uint64(nvl, ZPOOL_HIST_DSID, | |
d683ddbb | 523 | dsl_dir_phys(dd)->dd_head_dataset_obj); |
6f1ffb06 MA |
524 | |
525 | va_start(adx, fmt); | |
526 | log_internal(nvl, operation, dd->dd_pool->dp_spa, tx, fmt, adx); | |
527 | va_end(adx); | |
528 | } | |
529 | ||
530 | void | |
531 | spa_history_log_version(spa_t *spa, const char *operation) | |
45d1cae3 | 532 | { |
f0e324f2 BB |
533 | utsname_t *u = utsname(); |
534 | ||
6f1ffb06 MA |
535 | spa_history_log_internal(spa, operation, NULL, |
536 | "pool version %llu; software version %llu/%d; uts %s %s %s %s", | |
13fe0198 | 537 | (u_longlong_t)spa_version(spa), SPA_VERSION, ZPL_VERSION, |
f0e324f2 | 538 | u->nodename, u->release, u->version, u->machine); |
45d1cae3 | 539 | } |
c28b2279 BB |
540 | |
541 | #if defined(_KERNEL) && defined(HAVE_SPL) | |
542 | EXPORT_SYMBOL(spa_history_create_obj); | |
543 | EXPORT_SYMBOL(spa_history_get); | |
544 | EXPORT_SYMBOL(spa_history_log); | |
545 | EXPORT_SYMBOL(spa_history_log_internal); | |
546 | EXPORT_SYMBOL(spa_history_log_version); | |
547 | #endif |