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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 | */ | |
9b7b9cd3 | 21 | |
34dc7c2f | 22 | /* |
428870ff | 23 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
64fc7762 | 24 | * Copyright (c) 2012, 2017 by Delphix. All rights reserved. |
3a17a7a9 | 25 | * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. |
788eb90c | 26 | * Copyright (c) 2013, Joyent, Inc. All rights reserved. |
0c66c32d | 27 | * Copyright (c) 2014 Spectra Logic Corporation, All rights reserved. |
9c43027b | 28 | * Copyright (c) 2015, STRATO AG, Inc. All rights reserved. |
a0bd735a | 29 | * Copyright (c) 2016 Actifio, Inc. All rights reserved. |
9b7b9cd3 | 30 | * Copyright 2017 Nexenta Systems, Inc. |
c0daec32 | 31 | * Copyright (c) 2017 Open-E, Inc. All Rights Reserved. |
34dc7c2f BB |
32 | */ |
33 | ||
428870ff BB |
34 | /* Portions Copyright 2010 Robert Milkowski */ |
35 | ||
1de321e6 | 36 | #include <sys/zfeature.h> |
34dc7c2f BB |
37 | #include <sys/cred.h> |
38 | #include <sys/zfs_context.h> | |
39 | #include <sys/dmu_objset.h> | |
40 | #include <sys/dsl_dir.h> | |
41 | #include <sys/dsl_dataset.h> | |
42 | #include <sys/dsl_prop.h> | |
43 | #include <sys/dsl_pool.h> | |
44 | #include <sys/dsl_synctask.h> | |
45 | #include <sys/dsl_deleg.h> | |
46 | #include <sys/dnode.h> | |
47 | #include <sys/dbuf.h> | |
48 | #include <sys/zvol.h> | |
49 | #include <sys/dmu_tx.h> | |
34dc7c2f BB |
50 | #include <sys/zap.h> |
51 | #include <sys/zil.h> | |
52 | #include <sys/dmu_impl.h> | |
53 | #include <sys/zfs_ioctl.h> | |
428870ff | 54 | #include <sys/sa.h> |
572e2857 | 55 | #include <sys/zfs_onexit.h> |
13fe0198 | 56 | #include <sys/dsl_destroy.h> |
9c43027b | 57 | #include <sys/vdev.h> |
f74b821a | 58 | #include <sys/policy.h> |
1de321e6 | 59 | #include <sys/spa_impl.h> |
b5256303 | 60 | #include <sys/dmu_send.h> |
9c5167d1 | 61 | #include <sys/zfs_project.h> |
572e2857 BB |
62 | |
63 | /* | |
64 | * Needed to close a window in dnode_move() that allows the objset to be freed | |
65 | * before it can be safely accessed. | |
66 | */ | |
67 | krwlock_t os_lock; | |
68 | ||
9c43027b | 69 | /* |
4e33ba4c | 70 | * Tunable to overwrite the maximum number of threads for the parallelization |
9c43027b AJ |
71 | * of dmu_objset_find_dp, needed to speed up the import of pools with many |
72 | * datasets. | |
73 | * Default is 4 times the number of leaf vdevs. | |
74 | */ | |
75 | int dmu_find_threads = 0; | |
76 | ||
68cbd56e NB |
77 | /* |
78 | * Backfill lower metadnode objects after this many have been freed. | |
79 | * Backfilling negatively impacts object creation rates, so only do it | |
80 | * if there are enough holes to fill. | |
81 | */ | |
82 | int dmu_rescan_dnode_threshold = 1 << DN_MAX_INDBLKSHIFT; | |
83 | ||
c0daec32 AB |
84 | static char *upgrade_tag = "upgrade_tag"; |
85 | ||
9c43027b AJ |
86 | static void dmu_objset_find_dp_cb(void *arg); |
87 | ||
1de321e6 JX |
88 | static void dmu_objset_upgrade(objset_t *os, dmu_objset_upgrade_cb_t cb); |
89 | static void dmu_objset_upgrade_stop(objset_t *os); | |
90 | ||
572e2857 BB |
91 | void |
92 | dmu_objset_init(void) | |
93 | { | |
94 | rw_init(&os_lock, NULL, RW_DEFAULT, NULL); | |
95 | } | |
96 | ||
97 | void | |
98 | dmu_objset_fini(void) | |
99 | { | |
100 | rw_destroy(&os_lock); | |
101 | } | |
34dc7c2f BB |
102 | |
103 | spa_t * | |
104 | dmu_objset_spa(objset_t *os) | |
105 | { | |
428870ff | 106 | return (os->os_spa); |
34dc7c2f BB |
107 | } |
108 | ||
109 | zilog_t * | |
110 | dmu_objset_zil(objset_t *os) | |
111 | { | |
428870ff | 112 | return (os->os_zil); |
34dc7c2f BB |
113 | } |
114 | ||
115 | dsl_pool_t * | |
116 | dmu_objset_pool(objset_t *os) | |
117 | { | |
118 | dsl_dataset_t *ds; | |
119 | ||
428870ff | 120 | if ((ds = os->os_dsl_dataset) != NULL && ds->ds_dir) |
34dc7c2f BB |
121 | return (ds->ds_dir->dd_pool); |
122 | else | |
428870ff | 123 | return (spa_get_dsl(os->os_spa)); |
34dc7c2f BB |
124 | } |
125 | ||
126 | dsl_dataset_t * | |
127 | dmu_objset_ds(objset_t *os) | |
128 | { | |
428870ff | 129 | return (os->os_dsl_dataset); |
34dc7c2f BB |
130 | } |
131 | ||
132 | dmu_objset_type_t | |
133 | dmu_objset_type(objset_t *os) | |
134 | { | |
428870ff | 135 | return (os->os_phys->os_type); |
34dc7c2f BB |
136 | } |
137 | ||
138 | void | |
139 | dmu_objset_name(objset_t *os, char *buf) | |
140 | { | |
428870ff | 141 | dsl_dataset_name(os->os_dsl_dataset, buf); |
34dc7c2f BB |
142 | } |
143 | ||
144 | uint64_t | |
145 | dmu_objset_id(objset_t *os) | |
146 | { | |
428870ff | 147 | dsl_dataset_t *ds = os->os_dsl_dataset; |
34dc7c2f BB |
148 | |
149 | return (ds ? ds->ds_object : 0); | |
150 | } | |
151 | ||
50c957f7 NB |
152 | uint64_t |
153 | dmu_objset_dnodesize(objset_t *os) | |
154 | { | |
155 | return (os->os_dnodesize); | |
156 | } | |
157 | ||
faf0f58c | 158 | zfs_sync_type_t |
428870ff BB |
159 | dmu_objset_syncprop(objset_t *os) |
160 | { | |
161 | return (os->os_sync); | |
162 | } | |
163 | ||
faf0f58c | 164 | zfs_logbias_op_t |
428870ff BB |
165 | dmu_objset_logbias(objset_t *os) |
166 | { | |
167 | return (os->os_logbias); | |
168 | } | |
169 | ||
34dc7c2f BB |
170 | static void |
171 | checksum_changed_cb(void *arg, uint64_t newval) | |
172 | { | |
428870ff | 173 | objset_t *os = arg; |
34dc7c2f BB |
174 | |
175 | /* | |
176 | * Inheritance should have been done by now. | |
177 | */ | |
178 | ASSERT(newval != ZIO_CHECKSUM_INHERIT); | |
179 | ||
428870ff | 180 | os->os_checksum = zio_checksum_select(newval, ZIO_CHECKSUM_ON_VALUE); |
34dc7c2f BB |
181 | } |
182 | ||
183 | static void | |
184 | compression_changed_cb(void *arg, uint64_t newval) | |
185 | { | |
428870ff | 186 | objset_t *os = arg; |
34dc7c2f BB |
187 | |
188 | /* | |
189 | * Inheritance and range checking should have been done by now. | |
190 | */ | |
191 | ASSERT(newval != ZIO_COMPRESS_INHERIT); | |
192 | ||
99197f03 JG |
193 | os->os_compress = zio_compress_select(os->os_spa, newval, |
194 | ZIO_COMPRESS_ON); | |
34dc7c2f BB |
195 | } |
196 | ||
197 | static void | |
198 | copies_changed_cb(void *arg, uint64_t newval) | |
199 | { | |
428870ff | 200 | objset_t *os = arg; |
34dc7c2f BB |
201 | |
202 | /* | |
203 | * Inheritance and range checking should have been done by now. | |
204 | */ | |
205 | ASSERT(newval > 0); | |
428870ff | 206 | ASSERT(newval <= spa_max_replication(os->os_spa)); |
34dc7c2f | 207 | |
428870ff BB |
208 | os->os_copies = newval; |
209 | } | |
210 | ||
211 | static void | |
212 | dedup_changed_cb(void *arg, uint64_t newval) | |
213 | { | |
214 | objset_t *os = arg; | |
215 | spa_t *spa = os->os_spa; | |
216 | enum zio_checksum checksum; | |
217 | ||
218 | /* | |
219 | * Inheritance should have been done by now. | |
220 | */ | |
221 | ASSERT(newval != ZIO_CHECKSUM_INHERIT); | |
222 | ||
223 | checksum = zio_checksum_dedup_select(spa, newval, ZIO_CHECKSUM_OFF); | |
224 | ||
225 | os->os_dedup_checksum = checksum & ZIO_CHECKSUM_MASK; | |
226 | os->os_dedup_verify = !!(checksum & ZIO_CHECKSUM_VERIFY); | |
34dc7c2f BB |
227 | } |
228 | ||
b128c09f BB |
229 | static void |
230 | primary_cache_changed_cb(void *arg, uint64_t newval) | |
231 | { | |
428870ff | 232 | objset_t *os = arg; |
b128c09f BB |
233 | |
234 | /* | |
235 | * Inheritance and range checking should have been done by now. | |
236 | */ | |
237 | ASSERT(newval == ZFS_CACHE_ALL || newval == ZFS_CACHE_NONE || | |
238 | newval == ZFS_CACHE_METADATA); | |
239 | ||
428870ff | 240 | os->os_primary_cache = newval; |
b128c09f BB |
241 | } |
242 | ||
243 | static void | |
244 | secondary_cache_changed_cb(void *arg, uint64_t newval) | |
245 | { | |
428870ff | 246 | objset_t *os = arg; |
b128c09f BB |
247 | |
248 | /* | |
249 | * Inheritance and range checking should have been done by now. | |
250 | */ | |
251 | ASSERT(newval == ZFS_CACHE_ALL || newval == ZFS_CACHE_NONE || | |
252 | newval == ZFS_CACHE_METADATA); | |
253 | ||
428870ff BB |
254 | os->os_secondary_cache = newval; |
255 | } | |
256 | ||
257 | static void | |
258 | sync_changed_cb(void *arg, uint64_t newval) | |
259 | { | |
260 | objset_t *os = arg; | |
261 | ||
262 | /* | |
263 | * Inheritance and range checking should have been done by now. | |
264 | */ | |
265 | ASSERT(newval == ZFS_SYNC_STANDARD || newval == ZFS_SYNC_ALWAYS || | |
266 | newval == ZFS_SYNC_DISABLED); | |
267 | ||
268 | os->os_sync = newval; | |
269 | if (os->os_zil) | |
270 | zil_set_sync(os->os_zil, newval); | |
271 | } | |
272 | ||
faf0f58c MA |
273 | static void |
274 | redundant_metadata_changed_cb(void *arg, uint64_t newval) | |
275 | { | |
276 | objset_t *os = arg; | |
277 | ||
278 | /* | |
279 | * Inheritance and range checking should have been done by now. | |
280 | */ | |
281 | ASSERT(newval == ZFS_REDUNDANT_METADATA_ALL || | |
282 | newval == ZFS_REDUNDANT_METADATA_MOST); | |
283 | ||
284 | os->os_redundant_metadata = newval; | |
285 | } | |
286 | ||
50c957f7 NB |
287 | static void |
288 | dnodesize_changed_cb(void *arg, uint64_t newval) | |
289 | { | |
290 | objset_t *os = arg; | |
291 | ||
292 | switch (newval) { | |
293 | case ZFS_DNSIZE_LEGACY: | |
294 | os->os_dnodesize = DNODE_MIN_SIZE; | |
295 | break; | |
296 | case ZFS_DNSIZE_AUTO: | |
297 | /* | |
298 | * Choose a dnode size that will work well for most | |
299 | * workloads if the user specified "auto". Future code | |
300 | * improvements could dynamically select a dnode size | |
301 | * based on observed workload patterns. | |
302 | */ | |
303 | os->os_dnodesize = DNODE_MIN_SIZE * 2; | |
304 | break; | |
305 | case ZFS_DNSIZE_1K: | |
306 | case ZFS_DNSIZE_2K: | |
307 | case ZFS_DNSIZE_4K: | |
308 | case ZFS_DNSIZE_8K: | |
309 | case ZFS_DNSIZE_16K: | |
310 | os->os_dnodesize = newval; | |
311 | break; | |
312 | } | |
313 | } | |
314 | ||
428870ff BB |
315 | static void |
316 | logbias_changed_cb(void *arg, uint64_t newval) | |
317 | { | |
318 | objset_t *os = arg; | |
319 | ||
320 | ASSERT(newval == ZFS_LOGBIAS_LATENCY || | |
321 | newval == ZFS_LOGBIAS_THROUGHPUT); | |
322 | os->os_logbias = newval; | |
323 | if (os->os_zil) | |
324 | zil_set_logbias(os->os_zil, newval); | |
b128c09f BB |
325 | } |
326 | ||
f1512ee6 MA |
327 | static void |
328 | recordsize_changed_cb(void *arg, uint64_t newval) | |
329 | { | |
330 | objset_t *os = arg; | |
331 | ||
332 | os->os_recordsize = newval; | |
333 | } | |
334 | ||
34dc7c2f BB |
335 | void |
336 | dmu_objset_byteswap(void *buf, size_t size) | |
337 | { | |
338 | objset_phys_t *osp = buf; | |
339 | ||
9c5167d1 NF |
340 | ASSERT(size == OBJSET_PHYS_SIZE_V1 || size == OBJSET_PHYS_SIZE_V2 || |
341 | size == sizeof (objset_phys_t)); | |
34dc7c2f BB |
342 | dnode_byteswap(&osp->os_meta_dnode); |
343 | byteswap_uint64_array(&osp->os_zil_header, sizeof (zil_header_t)); | |
344 | osp->os_type = BSWAP_64(osp->os_type); | |
9babb374 | 345 | osp->os_flags = BSWAP_64(osp->os_flags); |
9c5167d1 | 346 | if (size >= OBJSET_PHYS_SIZE_V2) { |
9babb374 BB |
347 | dnode_byteswap(&osp->os_userused_dnode); |
348 | dnode_byteswap(&osp->os_groupused_dnode); | |
9c5167d1 NF |
349 | if (size >= sizeof (objset_phys_t)) |
350 | dnode_byteswap(&osp->os_projectused_dnode); | |
9babb374 | 351 | } |
34dc7c2f BB |
352 | } |
353 | ||
64fc7762 MA |
354 | /* |
355 | * The hash is a CRC-based hash of the objset_t pointer and the object number. | |
356 | */ | |
357 | static uint64_t | |
358 | dnode_hash(const objset_t *os, uint64_t obj) | |
359 | { | |
360 | uintptr_t osv = (uintptr_t)os; | |
361 | uint64_t crc = -1ULL; | |
362 | ||
363 | ASSERT(zfs_crc64_table[128] == ZFS_CRC64_POLY); | |
364 | /* | |
365 | * The low 6 bits of the pointer don't have much entropy, because | |
366 | * the objset_t is larger than 2^6 bytes long. | |
367 | */ | |
368 | crc = (crc >> 8) ^ zfs_crc64_table[(crc ^ (osv >> 6)) & 0xFF]; | |
369 | crc = (crc >> 8) ^ zfs_crc64_table[(crc ^ (obj >> 0)) & 0xFF]; | |
370 | crc = (crc >> 8) ^ zfs_crc64_table[(crc ^ (obj >> 8)) & 0xFF]; | |
371 | crc = (crc >> 8) ^ zfs_crc64_table[(crc ^ (obj >> 16)) & 0xFF]; | |
372 | ||
373 | crc ^= (osv>>14) ^ (obj>>24); | |
374 | ||
375 | return (crc); | |
376 | } | |
377 | ||
378 | unsigned int | |
379 | dnode_multilist_index_func(multilist_t *ml, void *obj) | |
380 | { | |
381 | dnode_t *dn = obj; | |
382 | return (dnode_hash(dn->dn_objset, dn->dn_object) % | |
383 | multilist_get_num_sublists(ml)); | |
384 | } | |
385 | ||
34dc7c2f BB |
386 | int |
387 | dmu_objset_open_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp, | |
428870ff | 388 | objset_t **osp) |
34dc7c2f | 389 | { |
428870ff | 390 | objset_t *os; |
b128c09f | 391 | int i, err; |
34dc7c2f BB |
392 | |
393 | ASSERT(ds == NULL || MUTEX_HELD(&ds->ds_opening_lock)); | |
394 | ||
79c76d5b | 395 | os = kmem_zalloc(sizeof (objset_t), KM_SLEEP); |
428870ff BB |
396 | os->os_dsl_dataset = ds; |
397 | os->os_spa = spa; | |
398 | os->os_rootbp = bp; | |
399 | if (!BP_IS_HOLE(os->os_rootbp)) { | |
2a432414 | 400 | arc_flags_t aflags = ARC_FLAG_WAIT; |
5dbd68a3 | 401 | zbookmark_phys_t zb; |
9c5167d1 | 402 | int size; |
b5256303 | 403 | enum zio_flag zio_flags = ZIO_FLAG_CANFAIL; |
428870ff BB |
404 | SET_BOOKMARK(&zb, ds ? ds->ds_object : DMU_META_OBJSET, |
405 | ZB_ROOT_OBJECT, ZB_ROOT_LEVEL, ZB_ROOT_BLKID); | |
406 | ||
407 | if (DMU_OS_IS_L2CACHEABLE(os)) | |
2a432414 | 408 | aflags |= ARC_FLAG_L2CACHE; |
34dc7c2f | 409 | |
b5256303 TC |
410 | if (ds != NULL && ds->ds_dir->dd_crypto_obj != 0) { |
411 | ASSERT3U(BP_GET_COMPRESS(bp), ==, ZIO_COMPRESS_OFF); | |
412 | ASSERT(BP_IS_AUTHENTICATED(bp)); | |
413 | zio_flags |= ZIO_FLAG_RAW; | |
414 | } | |
415 | ||
428870ff | 416 | dprintf_bp(os->os_rootbp, "reading %s", ""); |
294f6806 | 417 | err = arc_read(NULL, spa, os->os_rootbp, |
428870ff | 418 | arc_getbuf_func, &os->os_phys_buf, |
b5256303 | 419 | ZIO_PRIORITY_SYNC_READ, zio_flags, &aflags, &zb); |
13fe0198 | 420 | if (err != 0) { |
428870ff | 421 | kmem_free(os, sizeof (objset_t)); |
b128c09f BB |
422 | /* convert checksum errors into IO errors */ |
423 | if (err == ECKSUM) | |
2e528b49 | 424 | err = SET_ERROR(EIO); |
34dc7c2f BB |
425 | return (err); |
426 | } | |
9babb374 | 427 | |
9c5167d1 NF |
428 | if (spa_version(spa) < SPA_VERSION_USERSPACE) |
429 | size = OBJSET_PHYS_SIZE_V1; | |
430 | else if (!spa_feature_is_enabled(spa, | |
431 | SPA_FEATURE_PROJECT_QUOTA)) | |
432 | size = OBJSET_PHYS_SIZE_V2; | |
433 | else | |
434 | size = sizeof (objset_phys_t); | |
435 | ||
9babb374 | 436 | /* Increase the blocksize if we are permitted. */ |
9c5167d1 | 437 | if (arc_buf_size(os->os_phys_buf) < size) { |
2aa34383 | 438 | arc_buf_t *buf = arc_alloc_buf(spa, &os->os_phys_buf, |
9c5167d1 NF |
439 | ARC_BUFC_METADATA, size); |
440 | bzero(buf->b_data, size); | |
428870ff BB |
441 | bcopy(os->os_phys_buf->b_data, buf->b_data, |
442 | arc_buf_size(os->os_phys_buf)); | |
d3c2ae1c | 443 | arc_buf_destroy(os->os_phys_buf, &os->os_phys_buf); |
428870ff | 444 | os->os_phys_buf = buf; |
9babb374 BB |
445 | } |
446 | ||
428870ff BB |
447 | os->os_phys = os->os_phys_buf->b_data; |
448 | os->os_flags = os->os_phys->os_flags; | |
34dc7c2f | 449 | } else { |
9babb374 | 450 | int size = spa_version(spa) >= SPA_VERSION_USERSPACE ? |
9c5167d1 | 451 | sizeof (objset_phys_t) : OBJSET_PHYS_SIZE_V1; |
2aa34383 DK |
452 | os->os_phys_buf = arc_alloc_buf(spa, &os->os_phys_buf, |
453 | ARC_BUFC_METADATA, size); | |
428870ff BB |
454 | os->os_phys = os->os_phys_buf->b_data; |
455 | bzero(os->os_phys, size); | |
34dc7c2f BB |
456 | } |
457 | ||
458 | /* | |
459 | * Note: the changed_cb will be called once before the register | |
460 | * func returns, thus changing the checksum/compression from the | |
b128c09f BB |
461 | * default (fletcher2/off). Snapshots don't need to know about |
462 | * checksum/compression/copies. | |
34dc7c2f | 463 | */ |
9b67f605 | 464 | if (ds != NULL) { |
47dfff3b MA |
465 | boolean_t needlock = B_FALSE; |
466 | ||
b5256303 TC |
467 | os->os_encrypted = (ds->ds_dir->dd_crypto_obj != 0); |
468 | ||
47dfff3b MA |
469 | /* |
470 | * Note: it's valid to open the objset if the dataset is | |
471 | * long-held, in which case the pool_config lock will not | |
472 | * be held. | |
473 | */ | |
474 | if (!dsl_pool_config_held(dmu_objset_pool(os))) { | |
475 | needlock = B_TRUE; | |
476 | dsl_pool_config_enter(dmu_objset_pool(os), FTAG); | |
477 | } | |
b5256303 | 478 | |
13fe0198 MA |
479 | err = dsl_prop_register(ds, |
480 | zfs_prop_to_name(ZFS_PROP_PRIMARYCACHE), | |
428870ff | 481 | primary_cache_changed_cb, os); |
13fe0198 MA |
482 | if (err == 0) { |
483 | err = dsl_prop_register(ds, | |
484 | zfs_prop_to_name(ZFS_PROP_SECONDARYCACHE), | |
428870ff | 485 | secondary_cache_changed_cb, os); |
13fe0198 | 486 | } |
0c66c32d | 487 | if (!ds->ds_is_snapshot) { |
13fe0198 MA |
488 | if (err == 0) { |
489 | err = dsl_prop_register(ds, | |
490 | zfs_prop_to_name(ZFS_PROP_CHECKSUM), | |
428870ff | 491 | checksum_changed_cb, os); |
13fe0198 MA |
492 | } |
493 | if (err == 0) { | |
494 | err = dsl_prop_register(ds, | |
495 | zfs_prop_to_name(ZFS_PROP_COMPRESSION), | |
428870ff | 496 | compression_changed_cb, os); |
13fe0198 MA |
497 | } |
498 | if (err == 0) { | |
499 | err = dsl_prop_register(ds, | |
500 | zfs_prop_to_name(ZFS_PROP_COPIES), | |
428870ff | 501 | copies_changed_cb, os); |
13fe0198 MA |
502 | } |
503 | if (err == 0) { | |
504 | err = dsl_prop_register(ds, | |
505 | zfs_prop_to_name(ZFS_PROP_DEDUP), | |
428870ff | 506 | dedup_changed_cb, os); |
13fe0198 MA |
507 | } |
508 | if (err == 0) { | |
509 | err = dsl_prop_register(ds, | |
510 | zfs_prop_to_name(ZFS_PROP_LOGBIAS), | |
428870ff | 511 | logbias_changed_cb, os); |
13fe0198 MA |
512 | } |
513 | if (err == 0) { | |
514 | err = dsl_prop_register(ds, | |
515 | zfs_prop_to_name(ZFS_PROP_SYNC), | |
428870ff | 516 | sync_changed_cb, os); |
13fe0198 | 517 | } |
faf0f58c MA |
518 | if (err == 0) { |
519 | err = dsl_prop_register(ds, | |
520 | zfs_prop_to_name( | |
521 | ZFS_PROP_REDUNDANT_METADATA), | |
522 | redundant_metadata_changed_cb, os); | |
523 | } | |
f1512ee6 MA |
524 | if (err == 0) { |
525 | err = dsl_prop_register(ds, | |
526 | zfs_prop_to_name(ZFS_PROP_RECORDSIZE), | |
527 | recordsize_changed_cb, os); | |
528 | } | |
50c957f7 NB |
529 | if (err == 0) { |
530 | err = dsl_prop_register(ds, | |
531 | zfs_prop_to_name(ZFS_PROP_DNODESIZE), | |
532 | dnodesize_changed_cb, os); | |
533 | } | |
b128c09f | 534 | } |
47dfff3b MA |
535 | if (needlock) |
536 | dsl_pool_config_exit(dmu_objset_pool(os), FTAG); | |
13fe0198 | 537 | if (err != 0) { |
d3c2ae1c | 538 | arc_buf_destroy(os->os_phys_buf, &os->os_phys_buf); |
428870ff | 539 | kmem_free(os, sizeof (objset_t)); |
34dc7c2f BB |
540 | return (err); |
541 | } | |
9b67f605 | 542 | } else { |
34dc7c2f | 543 | /* It's the meta-objset. */ |
428870ff | 544 | os->os_checksum = ZIO_CHECKSUM_FLETCHER_4; |
99197f03 | 545 | os->os_compress = ZIO_COMPRESS_ON; |
b5256303 | 546 | os->os_encrypted = B_FALSE; |
428870ff BB |
547 | os->os_copies = spa_max_replication(spa); |
548 | os->os_dedup_checksum = ZIO_CHECKSUM_OFF; | |
faf0f58c MA |
549 | os->os_dedup_verify = B_FALSE; |
550 | os->os_logbias = ZFS_LOGBIAS_LATENCY; | |
551 | os->os_sync = ZFS_SYNC_STANDARD; | |
428870ff BB |
552 | os->os_primary_cache = ZFS_CACHE_ALL; |
553 | os->os_secondary_cache = ZFS_CACHE_ALL; | |
50c957f7 | 554 | os->os_dnodesize = DNODE_MIN_SIZE; |
34dc7c2f BB |
555 | } |
556 | ||
0c66c32d | 557 | if (ds == NULL || !ds->ds_is_snapshot) |
572e2857 | 558 | os->os_zil_header = os->os_phys->os_zil_header; |
428870ff | 559 | os->os_zil = zil_alloc(os, &os->os_zil_header); |
34dc7c2f BB |
560 | |
561 | for (i = 0; i < TXG_SIZE; i++) { | |
64fc7762 MA |
562 | os->os_dirty_dnodes[i] = multilist_create(sizeof (dnode_t), |
563 | offsetof(dnode_t, dn_dirty_link[i]), | |
564 | dnode_multilist_index_func); | |
34dc7c2f | 565 | } |
428870ff | 566 | list_create(&os->os_dnodes, sizeof (dnode_t), |
34dc7c2f | 567 | offsetof(dnode_t, dn_link)); |
428870ff | 568 | list_create(&os->os_downgraded_dbufs, sizeof (dmu_buf_impl_t), |
34dc7c2f BB |
569 | offsetof(dmu_buf_impl_t, db_link)); |
570 | ||
0c66c32d JG |
571 | list_link_init(&os->os_evicting_node); |
572 | ||
428870ff | 573 | mutex_init(&os->os_lock, NULL, MUTEX_DEFAULT, NULL); |
64fc7762 | 574 | mutex_init(&os->os_userused_lock, NULL, MUTEX_DEFAULT, NULL); |
428870ff BB |
575 | mutex_init(&os->os_obj_lock, NULL, MUTEX_DEFAULT, NULL); |
576 | mutex_init(&os->os_user_ptr_lock, NULL, MUTEX_DEFAULT, NULL); | |
dbeb8796 MA |
577 | os->os_obj_next_percpu_len = boot_ncpus; |
578 | os->os_obj_next_percpu = kmem_zalloc(os->os_obj_next_percpu_len * | |
579 | sizeof (os->os_obj_next_percpu[0]), KM_SLEEP); | |
428870ff | 580 | |
0c66c32d JG |
581 | dnode_special_open(os, &os->os_phys->os_meta_dnode, |
582 | DMU_META_DNODE_OBJECT, &os->os_meta_dnode); | |
9c5167d1 | 583 | if (OBJSET_BUF_HAS_USERUSED(os->os_phys_buf)) { |
0c66c32d JG |
584 | dnode_special_open(os, &os->os_phys->os_userused_dnode, |
585 | DMU_USERUSED_OBJECT, &os->os_userused_dnode); | |
586 | dnode_special_open(os, &os->os_phys->os_groupused_dnode, | |
587 | DMU_GROUPUSED_OBJECT, &os->os_groupused_dnode); | |
9c5167d1 NF |
588 | if (OBJSET_BUF_HAS_PROJECTUSED(os->os_phys_buf)) |
589 | dnode_special_open(os, | |
590 | &os->os_phys->os_projectused_dnode, | |
591 | DMU_PROJECTUSED_OBJECT, &os->os_projectused_dnode); | |
9babb374 | 592 | } |
34dc7c2f | 593 | |
1de321e6 JX |
594 | mutex_init(&os->os_upgrade_lock, NULL, MUTEX_DEFAULT, NULL); |
595 | ||
428870ff | 596 | *osp = os; |
34dc7c2f BB |
597 | return (0); |
598 | } | |
599 | ||
428870ff BB |
600 | int |
601 | dmu_objset_from_ds(dsl_dataset_t *ds, objset_t **osp) | |
34dc7c2f | 602 | { |
428870ff | 603 | int err = 0; |
34dc7c2f | 604 | |
47dfff3b MA |
605 | /* |
606 | * We shouldn't be doing anything with dsl_dataset_t's unless the | |
607 | * pool_config lock is held, or the dataset is long-held. | |
608 | */ | |
609 | ASSERT(dsl_pool_config_held(ds->ds_dir->dd_pool) || | |
610 | dsl_dataset_long_held(ds)); | |
611 | ||
34dc7c2f | 612 | mutex_enter(&ds->ds_opening_lock); |
9b67f605 MA |
613 | if (ds->ds_objset == NULL) { |
614 | objset_t *os; | |
cc9bb3e5 | 615 | rrw_enter(&ds->ds_bp_rwlock, RW_READER, FTAG); |
34dc7c2f | 616 | err = dmu_objset_open_impl(dsl_dataset_get_spa(ds), |
9b67f605 | 617 | ds, dsl_dataset_get_blkptr(ds), &os); |
cc9bb3e5 | 618 | rrw_exit(&ds->ds_bp_rwlock, FTAG); |
9b67f605 MA |
619 | |
620 | if (err == 0) { | |
621 | mutex_enter(&ds->ds_lock); | |
622 | ASSERT(ds->ds_objset == NULL); | |
623 | ds->ds_objset = os; | |
624 | mutex_exit(&ds->ds_lock); | |
625 | } | |
34dc7c2f | 626 | } |
9b67f605 | 627 | *osp = ds->ds_objset; |
34dc7c2f | 628 | mutex_exit(&ds->ds_opening_lock); |
428870ff | 629 | return (err); |
34dc7c2f BB |
630 | } |
631 | ||
13fe0198 MA |
632 | /* |
633 | * Holds the pool while the objset is held. Therefore only one objset | |
634 | * can be held at a time. | |
635 | */ | |
34dc7c2f | 636 | int |
b5256303 TC |
637 | dmu_objset_hold_flags(const char *name, boolean_t decrypt, void *tag, |
638 | objset_t **osp) | |
34dc7c2f | 639 | { |
13fe0198 | 640 | dsl_pool_t *dp; |
428870ff | 641 | dsl_dataset_t *ds; |
34dc7c2f | 642 | int err; |
b5256303 | 643 | ds_hold_flags_t flags = (decrypt) ? DS_HOLD_FLAG_DECRYPT : 0; |
34dc7c2f | 644 | |
13fe0198 MA |
645 | err = dsl_pool_hold(name, tag, &dp); |
646 | if (err != 0) | |
647 | return (err); | |
b5256303 | 648 | err = dsl_dataset_hold_flags(dp, name, flags, tag, &ds); |
13fe0198 MA |
649 | if (err != 0) { |
650 | dsl_pool_rele(dp, tag); | |
428870ff | 651 | return (err); |
13fe0198 | 652 | } |
428870ff BB |
653 | |
654 | err = dmu_objset_from_ds(ds, osp); | |
13fe0198 | 655 | if (err != 0) { |
428870ff | 656 | dsl_dataset_rele(ds, tag); |
13fe0198 MA |
657 | dsl_pool_rele(dp, tag); |
658 | } | |
428870ff | 659 | |
34dc7c2f BB |
660 | return (err); |
661 | } | |
662 | ||
b5256303 TC |
663 | int |
664 | dmu_objset_hold(const char *name, void *tag, objset_t **osp) | |
665 | { | |
666 | return (dmu_objset_hold_flags(name, B_FALSE, tag, osp)); | |
667 | } | |
668 | ||
9c43027b AJ |
669 | static int |
670 | dmu_objset_own_impl(dsl_dataset_t *ds, dmu_objset_type_t type, | |
b5256303 | 671 | boolean_t readonly, boolean_t decrypt, void *tag, objset_t **osp) |
9c43027b AJ |
672 | { |
673 | int err; | |
674 | ||
675 | err = dmu_objset_from_ds(ds, osp); | |
676 | if (err != 0) { | |
b5256303 | 677 | return (err); |
9c43027b | 678 | } else if (type != DMU_OST_ANY && type != (*osp)->os_phys->os_type) { |
9c43027b AJ |
679 | return (SET_ERROR(EINVAL)); |
680 | } else if (!readonly && dsl_dataset_is_snapshot(ds)) { | |
9c43027b | 681 | return (SET_ERROR(EROFS)); |
ae76f45c TC |
682 | } else if (!readonly && decrypt && |
683 | dsl_dir_incompatible_encryption_version(ds->ds_dir)) { | |
684 | return (SET_ERROR(EROFS)); | |
9c43027b | 685 | } |
b5256303 TC |
686 | |
687 | /* if we are decrypting, we can now check MACs in os->os_phys_buf */ | |
688 | if (decrypt && arc_is_unauthenticated((*osp)->os_phys_buf)) { | |
689 | err = arc_untransform((*osp)->os_phys_buf, (*osp)->os_spa, | |
690 | ds->ds_object, B_FALSE); | |
691 | if (err != 0) | |
692 | return (err); | |
693 | ||
694 | ASSERT0(arc_is_unauthenticated((*osp)->os_phys_buf)); | |
695 | } | |
696 | ||
697 | return (0); | |
9c43027b AJ |
698 | } |
699 | ||
13fe0198 MA |
700 | /* |
701 | * dsl_pool must not be held when this is called. | |
702 | * Upon successful return, there will be a longhold on the dataset, | |
703 | * and the dsl_pool will not be held. | |
704 | */ | |
34dc7c2f | 705 | int |
428870ff | 706 | dmu_objset_own(const char *name, dmu_objset_type_t type, |
b5256303 | 707 | boolean_t readonly, boolean_t decrypt, void *tag, objset_t **osp) |
34dc7c2f | 708 | { |
13fe0198 | 709 | dsl_pool_t *dp; |
34dc7c2f BB |
710 | dsl_dataset_t *ds; |
711 | int err; | |
b5256303 | 712 | ds_hold_flags_t flags = (decrypt) ? DS_HOLD_FLAG_DECRYPT : 0; |
34dc7c2f | 713 | |
13fe0198 MA |
714 | err = dsl_pool_hold(name, FTAG, &dp); |
715 | if (err != 0) | |
716 | return (err); | |
b5256303 | 717 | err = dsl_dataset_own(dp, name, flags, tag, &ds); |
13fe0198 MA |
718 | if (err != 0) { |
719 | dsl_pool_rele(dp, FTAG); | |
34dc7c2f | 720 | return (err); |
13fe0198 | 721 | } |
b5256303 TC |
722 | err = dmu_objset_own_impl(ds, type, readonly, decrypt, tag, osp); |
723 | if (err != 0) { | |
724 | dsl_dataset_disown(ds, flags, tag); | |
725 | dsl_pool_rele(dp, FTAG); | |
726 | return (err); | |
727 | } | |
728 | ||
163a8c28 TC |
729 | /* |
730 | * User accounting requires the dataset to be decrypted and rw. | |
731 | * We also don't begin user accounting during claiming to help | |
732 | * speed up pool import times and to keep this txg reserved | |
733 | * completely for recovery work. | |
734 | */ | |
9c5167d1 NF |
735 | if ((dmu_objset_userobjspace_upgradable(*osp) || |
736 | dmu_objset_projectquota_upgradable(*osp)) && | |
163a8c28 | 737 | !readonly && !dp->dp_spa->spa_claiming && |
4807c0ba | 738 | (ds->ds_dir->dd_crypto_obj == 0 || decrypt)) |
9c5167d1 | 739 | dmu_objset_id_quota_upgrade(*osp); |
1de321e6 | 740 | |
c0daec32 | 741 | dsl_pool_rele(dp, FTAG); |
b5256303 | 742 | return (0); |
34dc7c2f BB |
743 | } |
744 | ||
9c43027b AJ |
745 | int |
746 | dmu_objset_own_obj(dsl_pool_t *dp, uint64_t obj, dmu_objset_type_t type, | |
b5256303 | 747 | boolean_t readonly, boolean_t decrypt, void *tag, objset_t **osp) |
9c43027b AJ |
748 | { |
749 | dsl_dataset_t *ds; | |
750 | int err; | |
b5256303 | 751 | ds_hold_flags_t flags = (decrypt) ? DS_HOLD_FLAG_DECRYPT : 0; |
9c43027b | 752 | |
b5256303 | 753 | err = dsl_dataset_own_obj(dp, obj, flags, tag, &ds); |
9c43027b AJ |
754 | if (err != 0) |
755 | return (err); | |
756 | ||
b5256303 TC |
757 | err = dmu_objset_own_impl(ds, type, readonly, decrypt, tag, osp); |
758 | if (err != 0) { | |
759 | dsl_dataset_disown(ds, flags, tag); | |
760 | return (err); | |
761 | } | |
762 | ||
763 | return (0); | |
9c43027b AJ |
764 | } |
765 | ||
34dc7c2f | 766 | void |
b5256303 | 767 | dmu_objset_rele_flags(objset_t *os, boolean_t decrypt, void *tag) |
34dc7c2f | 768 | { |
b5256303 TC |
769 | ds_hold_flags_t flags = (decrypt) ? DS_HOLD_FLAG_DECRYPT : 0; |
770 | ||
13fe0198 | 771 | dsl_pool_t *dp = dmu_objset_pool(os); |
b5256303 | 772 | dsl_dataset_rele_flags(os->os_dsl_dataset, flags, tag); |
13fe0198 | 773 | dsl_pool_rele(dp, tag); |
428870ff | 774 | } |
b128c09f | 775 | |
b5256303 TC |
776 | void |
777 | dmu_objset_rele(objset_t *os, void *tag) | |
778 | { | |
779 | dmu_objset_rele_flags(os, B_FALSE, tag); | |
780 | } | |
781 | ||
831baf06 KW |
782 | /* |
783 | * When we are called, os MUST refer to an objset associated with a dataset | |
784 | * that is owned by 'tag'; that is, is held and long held by 'tag' and ds_owner | |
785 | * == tag. We will then release and reacquire ownership of the dataset while | |
786 | * holding the pool config_rwlock to avoid intervening namespace or ownership | |
787 | * changes may occur. | |
788 | * | |
789 | * This exists solely to accommodate zfs_ioc_userspace_upgrade()'s desire to | |
790 | * release the hold on its dataset and acquire a new one on the dataset of the | |
791 | * same name so that it can be partially torn down and reconstructed. | |
792 | */ | |
793 | void | |
5e00213e AG |
794 | dmu_objset_refresh_ownership(dsl_dataset_t *ds, dsl_dataset_t **newds, |
795 | boolean_t decrypt, void *tag) | |
831baf06 KW |
796 | { |
797 | dsl_pool_t *dp; | |
eca7b760 | 798 | char name[ZFS_MAX_DATASET_NAME_LEN]; |
831baf06 | 799 | |
831baf06 KW |
800 | VERIFY3P(ds, !=, NULL); |
801 | VERIFY3P(ds->ds_owner, ==, tag); | |
802 | VERIFY(dsl_dataset_long_held(ds)); | |
803 | ||
804 | dsl_dataset_name(ds, name); | |
5e00213e | 805 | dp = ds->ds_dir->dd_pool; |
831baf06 | 806 | dsl_pool_config_enter(dp, FTAG); |
5e00213e | 807 | dsl_dataset_disown(ds, decrypt, tag); |
b5256303 | 808 | VERIFY0(dsl_dataset_own(dp, name, |
5e00213e | 809 | (decrypt) ? DS_HOLD_FLAG_DECRYPT : 0, tag, newds)); |
831baf06 KW |
810 | dsl_pool_config_exit(dp, FTAG); |
811 | } | |
812 | ||
428870ff | 813 | void |
b5256303 | 814 | dmu_objset_disown(objset_t *os, boolean_t decrypt, void *tag) |
428870ff | 815 | { |
1de321e6 JX |
816 | /* |
817 | * Stop upgrading thread | |
818 | */ | |
819 | dmu_objset_upgrade_stop(os); | |
b5256303 TC |
820 | dsl_dataset_disown(os->os_dsl_dataset, |
821 | (decrypt) ? DS_HOLD_FLAG_DECRYPT : 0, tag); | |
34dc7c2f BB |
822 | } |
823 | ||
13fe0198 | 824 | void |
34dc7c2f BB |
825 | dmu_objset_evict_dbufs(objset_t *os) |
826 | { | |
0c66c32d | 827 | dnode_t *dn_marker; |
34dc7c2f BB |
828 | dnode_t *dn; |
829 | ||
0c66c32d | 830 | dn_marker = kmem_alloc(sizeof (dnode_t), KM_SLEEP); |
34dc7c2f | 831 | |
0c66c32d JG |
832 | mutex_enter(&os->os_lock); |
833 | dn = list_head(&os->os_dnodes); | |
834 | while (dn != NULL) { | |
835 | /* | |
836 | * Skip dnodes without holds. We have to do this dance | |
837 | * because dnode_add_ref() only works if there is already a | |
838 | * hold. If the dnode has no holds, then it has no dbufs. | |
839 | */ | |
840 | if (dnode_add_ref(dn, FTAG)) { | |
841 | list_insert_after(&os->os_dnodes, dn, dn_marker); | |
842 | mutex_exit(&os->os_lock); | |
34dc7c2f | 843 | |
0c66c32d JG |
844 | dnode_evict_dbufs(dn); |
845 | dnode_rele(dn, FTAG); | |
34dc7c2f | 846 | |
0c66c32d JG |
847 | mutex_enter(&os->os_lock); |
848 | dn = list_next(&os->os_dnodes, dn_marker); | |
849 | list_remove(&os->os_dnodes, dn_marker); | |
850 | } else { | |
851 | dn = list_next(&os->os_dnodes, dn); | |
852 | } | |
853 | } | |
854 | mutex_exit(&os->os_lock); | |
34dc7c2f | 855 | |
0c66c32d | 856 | kmem_free(dn_marker, sizeof (dnode_t)); |
34dc7c2f | 857 | |
0c66c32d | 858 | if (DMU_USERUSED_DNODE(os) != NULL) { |
9c5167d1 NF |
859 | if (DMU_PROJECTUSED_DNODE(os) != NULL) |
860 | dnode_evict_dbufs(DMU_PROJECTUSED_DNODE(os)); | |
0c66c32d JG |
861 | dnode_evict_dbufs(DMU_GROUPUSED_DNODE(os)); |
862 | dnode_evict_dbufs(DMU_USERUSED_DNODE(os)); | |
34dc7c2f | 863 | } |
0c66c32d | 864 | dnode_evict_dbufs(DMU_META_DNODE(os)); |
34dc7c2f BB |
865 | } |
866 | ||
0c66c32d JG |
867 | /* |
868 | * Objset eviction processing is split into into two pieces. | |
869 | * The first marks the objset as evicting, evicts any dbufs that | |
870 | * have a refcount of zero, and then queues up the objset for the | |
871 | * second phase of eviction. Once os->os_dnodes has been cleared by | |
872 | * dnode_buf_pageout()->dnode_destroy(), the second phase is executed. | |
873 | * The second phase closes the special dnodes, dequeues the objset from | |
874 | * the list of those undergoing eviction, and finally frees the objset. | |
875 | * | |
876 | * NOTE: Due to asynchronous eviction processing (invocation of | |
877 | * dnode_buf_pageout()), it is possible for the meta dnode for the | |
878 | * objset to have no holds even though os->os_dnodes is not empty. | |
879 | */ | |
34dc7c2f | 880 | void |
428870ff | 881 | dmu_objset_evict(objset_t *os) |
34dc7c2f | 882 | { |
6f1ffb06 MA |
883 | dsl_dataset_t *ds = os->os_dsl_dataset; |
884 | ||
1c27024e | 885 | for (int t = 0; t < TXG_SIZE; t++) |
428870ff | 886 | ASSERT(!dmu_objset_is_dirty(os, t)); |
34dc7c2f | 887 | |
0eb21616 JG |
888 | if (ds) |
889 | dsl_prop_unregister_all(ds, os); | |
34dc7c2f | 890 | |
428870ff BB |
891 | if (os->os_sa) |
892 | sa_tear_down(os); | |
893 | ||
13fe0198 | 894 | dmu_objset_evict_dbufs(os); |
34dc7c2f | 895 | |
0c66c32d JG |
896 | mutex_enter(&os->os_lock); |
897 | spa_evicting_os_register(os->os_spa, os); | |
898 | if (list_is_empty(&os->os_dnodes)) { | |
899 | mutex_exit(&os->os_lock); | |
900 | dmu_objset_evict_done(os); | |
901 | } else { | |
902 | mutex_exit(&os->os_lock); | |
903 | } | |
b5256303 TC |
904 | |
905 | ||
0c66c32d JG |
906 | } |
907 | ||
908 | void | |
909 | dmu_objset_evict_done(objset_t *os) | |
910 | { | |
911 | ASSERT3P(list_head(&os->os_dnodes), ==, NULL); | |
912 | ||
572e2857 BB |
913 | dnode_special_close(&os->os_meta_dnode); |
914 | if (DMU_USERUSED_DNODE(os)) { | |
9c5167d1 NF |
915 | if (DMU_PROJECTUSED_DNODE(os)) |
916 | dnode_special_close(&os->os_projectused_dnode); | |
572e2857 BB |
917 | dnode_special_close(&os->os_userused_dnode); |
918 | dnode_special_close(&os->os_groupused_dnode); | |
9babb374 | 919 | } |
428870ff BB |
920 | zil_free(os->os_zil); |
921 | ||
d3c2ae1c | 922 | arc_buf_destroy(os->os_phys_buf, &os->os_phys_buf); |
572e2857 BB |
923 | |
924 | /* | |
925 | * This is a barrier to prevent the objset from going away in | |
926 | * dnode_move() until we can safely ensure that the objset is still in | |
927 | * use. We consider the objset valid before the barrier and invalid | |
928 | * after the barrier. | |
929 | */ | |
930 | rw_enter(&os_lock, RW_READER); | |
931 | rw_exit(&os_lock); | |
932 | ||
dbeb8796 MA |
933 | kmem_free(os->os_obj_next_percpu, |
934 | os->os_obj_next_percpu_len * sizeof (os->os_obj_next_percpu[0])); | |
935 | ||
428870ff | 936 | mutex_destroy(&os->os_lock); |
64fc7762 | 937 | mutex_destroy(&os->os_userused_lock); |
428870ff BB |
938 | mutex_destroy(&os->os_obj_lock); |
939 | mutex_destroy(&os->os_user_ptr_lock); | |
c17486b2 | 940 | mutex_destroy(&os->os_upgrade_lock); |
64fc7762 MA |
941 | for (int i = 0; i < TXG_SIZE; i++) { |
942 | multilist_destroy(os->os_dirty_dnodes[i]); | |
943 | } | |
0c66c32d | 944 | spa_evicting_os_deregister(os->os_spa, os); |
428870ff BB |
945 | kmem_free(os, sizeof (objset_t)); |
946 | } | |
9babb374 | 947 | |
428870ff BB |
948 | timestruc_t |
949 | dmu_objset_snap_cmtime(objset_t *os) | |
950 | { | |
951 | return (dsl_dir_snap_cmtime(os->os_dsl_dataset->ds_dir)); | |
34dc7c2f BB |
952 | } |
953 | ||
428870ff | 954 | objset_t * |
b5256303 TC |
955 | dmu_objset_create_impl_dnstats(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp, |
956 | dmu_objset_type_t type, int levels, int blksz, int ibs, dmu_tx_t *tx) | |
34dc7c2f | 957 | { |
428870ff | 958 | objset_t *os; |
34dc7c2f BB |
959 | dnode_t *mdn; |
960 | ||
961 | ASSERT(dmu_tx_is_syncing(tx)); | |
13fe0198 | 962 | |
b5256303 TC |
963 | if (blksz == 0) |
964 | blksz = DNODE_BLOCK_SIZE; | |
4807c0ba | 965 | if (ibs == 0) |
b5256303 TC |
966 | ibs = DN_MAX_INDBLKSHIFT; |
967 | ||
572e2857 | 968 | if (ds != NULL) |
13fe0198 | 969 | VERIFY0(dmu_objset_from_ds(ds, &os)); |
572e2857 | 970 | else |
13fe0198 | 971 | VERIFY0(dmu_objset_open_impl(spa, NULL, bp, &os)); |
572e2857 BB |
972 | |
973 | mdn = DMU_META_DNODE(os); | |
34dc7c2f | 974 | |
b5256303 TC |
975 | dnode_allocate(mdn, DMU_OT_DNODE, blksz, ibs, DMU_OT_NONE, 0, |
976 | DNODE_MIN_SLOTS, tx); | |
34dc7c2f BB |
977 | |
978 | /* | |
979 | * We don't want to have to increase the meta-dnode's nlevels | |
980 | * later, because then we could do it in quescing context while | |
981 | * we are also accessing it in open context. | |
982 | * | |
983 | * This precaution is not necessary for the MOS (ds == NULL), | |
984 | * because the MOS is only updated in syncing context. | |
985 | * This is most fortunate: the MOS is the only objset that | |
986 | * needs to be synced multiple times as spa_sync() iterates | |
987 | * to convergence, so minimizing its dn_nlevels matters. | |
988 | */ | |
989 | if (ds != NULL) { | |
b5256303 TC |
990 | if (levels == 0) { |
991 | levels = 1; | |
992 | ||
993 | /* | |
994 | * Determine the number of levels necessary for the | |
995 | * meta-dnode to contain DN_MAX_OBJECT dnodes. Note | |
996 | * that in order to ensure that we do not overflow | |
997 | * 64 bits, there has to be a nlevels that gives us a | |
998 | * number of blocks > DN_MAX_OBJECT but < 2^64. | |
999 | * Therefore, (mdn->dn_indblkshift - SPA_BLKPTRSHIFT) | |
1000 | * (10) must be less than (64 - log2(DN_MAX_OBJECT)) | |
1001 | * (16). | |
1002 | */ | |
1003 | while ((uint64_t)mdn->dn_nblkptr << | |
1004 | (mdn->dn_datablkshift - DNODE_SHIFT + (levels - 1) * | |
1005 | (mdn->dn_indblkshift - SPA_BLKPTRSHIFT)) < | |
1006 | DN_MAX_OBJECT) | |
1007 | levels++; | |
1008 | } | |
34dc7c2f BB |
1009 | |
1010 | mdn->dn_next_nlevels[tx->tx_txg & TXG_MASK] = | |
1011 | mdn->dn_nlevels = levels; | |
1012 | } | |
1013 | ||
1014 | ASSERT(type != DMU_OST_NONE); | |
1015 | ASSERT(type != DMU_OST_ANY); | |
1016 | ASSERT(type < DMU_OST_NUMTYPES); | |
428870ff | 1017 | os->os_phys->os_type = type; |
b5256303 TC |
1018 | |
1019 | /* | |
1020 | * Enable user accounting if it is enabled and this is not an | |
1021 | * encrypted receive. | |
1022 | */ | |
1023 | if (dmu_objset_userused_enabled(os) && | |
1024 | (!os->os_encrypted || !dmu_objset_is_receiving(os))) { | |
428870ff | 1025 | os->os_phys->os_flags |= OBJSET_FLAG_USERACCOUNTING_COMPLETE; |
1de321e6 JX |
1026 | if (dmu_objset_userobjused_enabled(os)) { |
1027 | ds->ds_feature_activation_needed[ | |
1028 | SPA_FEATURE_USEROBJ_ACCOUNTING] = B_TRUE; | |
1029 | os->os_phys->os_flags |= | |
1030 | OBJSET_FLAG_USEROBJACCOUNTING_COMPLETE; | |
1031 | } | |
9c5167d1 NF |
1032 | if (dmu_objset_projectquota_enabled(os)) { |
1033 | ds->ds_feature_activation_needed[ | |
1034 | SPA_FEATURE_PROJECT_QUOTA] = B_TRUE; | |
1035 | os->os_phys->os_flags |= | |
1036 | OBJSET_FLAG_PROJECTQUOTA_COMPLETE; | |
1037 | } | |
428870ff | 1038 | os->os_flags = os->os_phys->os_flags; |
9babb374 | 1039 | } |
34dc7c2f BB |
1040 | |
1041 | dsl_dataset_dirty(ds, tx); | |
1042 | ||
428870ff | 1043 | return (os); |
34dc7c2f BB |
1044 | } |
1045 | ||
b5256303 TC |
1046 | /* called from dsl for meta-objset */ |
1047 | objset_t * | |
1048 | dmu_objset_create_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp, | |
1049 | dmu_objset_type_t type, dmu_tx_t *tx) | |
1050 | { | |
1051 | return (dmu_objset_create_impl_dnstats(spa, ds, bp, type, 0, 0, 0, tx)); | |
1052 | } | |
1053 | ||
13fe0198 MA |
1054 | typedef struct dmu_objset_create_arg { |
1055 | const char *doca_name; | |
1056 | cred_t *doca_cred; | |
1057 | void (*doca_userfunc)(objset_t *os, void *arg, | |
1058 | cred_t *cr, dmu_tx_t *tx); | |
1059 | void *doca_userarg; | |
1060 | dmu_objset_type_t doca_type; | |
1061 | uint64_t doca_flags; | |
b5256303 | 1062 | dsl_crypto_params_t *doca_dcp; |
13fe0198 | 1063 | } dmu_objset_create_arg_t; |
34dc7c2f BB |
1064 | |
1065 | /*ARGSUSED*/ | |
1066 | static int | |
13fe0198 | 1067 | dmu_objset_create_check(void *arg, dmu_tx_t *tx) |
34dc7c2f | 1068 | { |
13fe0198 MA |
1069 | dmu_objset_create_arg_t *doca = arg; |
1070 | dsl_pool_t *dp = dmu_tx_pool(tx); | |
1071 | dsl_dir_t *pdd; | |
1072 | const char *tail; | |
1073 | int error; | |
34dc7c2f | 1074 | |
13fe0198 | 1075 | if (strchr(doca->doca_name, '@') != NULL) |
2e528b49 | 1076 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 1077 | |
eca7b760 IK |
1078 | if (strlen(doca->doca_name) >= ZFS_MAX_DATASET_NAME_LEN) |
1079 | return (SET_ERROR(ENAMETOOLONG)); | |
1080 | ||
13fe0198 MA |
1081 | error = dsl_dir_hold(dp, doca->doca_name, FTAG, &pdd, &tail); |
1082 | if (error != 0) | |
1083 | return (error); | |
1084 | if (tail == NULL) { | |
1085 | dsl_dir_rele(pdd, FTAG); | |
2e528b49 | 1086 | return (SET_ERROR(EEXIST)); |
34dc7c2f | 1087 | } |
b5256303 TC |
1088 | |
1089 | error = dmu_objset_create_crypt_check(pdd, doca->doca_dcp); | |
1090 | if (error != 0) { | |
1091 | dsl_dir_rele(pdd, FTAG); | |
1092 | return (error); | |
1093 | } | |
1094 | ||
788eb90c JJ |
1095 | error = dsl_fs_ss_limit_check(pdd, 1, ZFS_PROP_FILESYSTEM_LIMIT, NULL, |
1096 | doca->doca_cred); | |
b5256303 | 1097 | |
13fe0198 | 1098 | dsl_dir_rele(pdd, FTAG); |
34dc7c2f | 1099 | |
788eb90c | 1100 | return (error); |
34dc7c2f BB |
1101 | } |
1102 | ||
1103 | static void | |
13fe0198 | 1104 | dmu_objset_create_sync(void *arg, dmu_tx_t *tx) |
34dc7c2f | 1105 | { |
13fe0198 MA |
1106 | dmu_objset_create_arg_t *doca = arg; |
1107 | dsl_pool_t *dp = dmu_tx_pool(tx); | |
1108 | dsl_dir_t *pdd; | |
1109 | const char *tail; | |
6f1ffb06 | 1110 | dsl_dataset_t *ds; |
13fe0198 | 1111 | uint64_t obj; |
6f1ffb06 | 1112 | blkptr_t *bp; |
13fe0198 | 1113 | objset_t *os; |
b5256303 | 1114 | zio_t *rzio; |
34dc7c2f | 1115 | |
13fe0198 | 1116 | VERIFY0(dsl_dir_hold(dp, doca->doca_name, FTAG, &pdd, &tail)); |
34dc7c2f | 1117 | |
13fe0198 | 1118 | obj = dsl_dataset_create_sync(pdd, tail, NULL, doca->doca_flags, |
b5256303 | 1119 | doca->doca_cred, doca->doca_dcp, tx); |
34dc7c2f | 1120 | |
b5256303 TC |
1121 | VERIFY0(dsl_dataset_hold_obj_flags(pdd->dd_pool, obj, |
1122 | DS_HOLD_FLAG_DECRYPT, FTAG, &ds)); | |
cc9bb3e5 | 1123 | rrw_enter(&ds->ds_bp_rwlock, RW_READER, FTAG); |
6f1ffb06 | 1124 | bp = dsl_dataset_get_blkptr(ds); |
13fe0198 MA |
1125 | os = dmu_objset_create_impl(pdd->dd_pool->dp_spa, |
1126 | ds, bp, doca->doca_type, tx); | |
cc9bb3e5 | 1127 | rrw_exit(&ds->ds_bp_rwlock, FTAG); |
34dc7c2f | 1128 | |
13fe0198 MA |
1129 | if (doca->doca_userfunc != NULL) { |
1130 | doca->doca_userfunc(os, doca->doca_userarg, | |
1131 | doca->doca_cred, tx); | |
34dc7c2f BB |
1132 | } |
1133 | ||
b5256303 | 1134 | /* |
4807c0ba | 1135 | * The doca_userfunc() may write out some data that needs to be |
b5256303 TC |
1136 | * encrypted if the dataset is encrypted (specifically the root |
1137 | * directory). This data must be written out before the encryption | |
1138 | * key mapping is removed by dsl_dataset_rele_flags(). Force the | |
1139 | * I/O to occur immediately by invoking the relevant sections of | |
1140 | * dsl_pool_sync(). | |
1141 | */ | |
1142 | if (os->os_encrypted) { | |
1143 | dsl_dataset_t *tmpds = NULL; | |
1144 | boolean_t need_sync_done = B_FALSE; | |
1145 | ||
4807c0ba TC |
1146 | mutex_enter(&ds->ds_lock); |
1147 | ds->ds_owner = FTAG; | |
1148 | mutex_exit(&ds->ds_lock); | |
1149 | ||
b5256303 | 1150 | rzio = zio_root(dp->dp_spa, NULL, NULL, ZIO_FLAG_MUSTSUCCEED); |
4807c0ba TC |
1151 | tmpds = txg_list_remove_this(&dp->dp_dirty_datasets, ds, |
1152 | tx->tx_txg); | |
b5256303 | 1153 | if (tmpds != NULL) { |
b5256303 TC |
1154 | dsl_dataset_sync(ds, rzio, tx); |
1155 | need_sync_done = B_TRUE; | |
1156 | } | |
1157 | VERIFY0(zio_wait(rzio)); | |
1158 | ||
1159 | dmu_objset_do_userquota_updates(os, tx); | |
1160 | taskq_wait(dp->dp_sync_taskq); | |
1161 | ||
1162 | rzio = zio_root(dp->dp_spa, NULL, NULL, ZIO_FLAG_MUSTSUCCEED); | |
4807c0ba TC |
1163 | tmpds = txg_list_remove_this(&dp->dp_dirty_datasets, ds, |
1164 | tx->tx_txg); | |
b5256303 | 1165 | if (tmpds != NULL) { |
b5256303 TC |
1166 | dmu_buf_rele(ds->ds_dbuf, ds); |
1167 | dsl_dataset_sync(ds, rzio, tx); | |
1168 | } | |
1169 | VERIFY0(zio_wait(rzio)); | |
1170 | ||
1171 | if (need_sync_done) | |
1172 | dsl_dataset_sync_done(ds, tx); | |
4807c0ba TC |
1173 | |
1174 | mutex_enter(&ds->ds_lock); | |
1175 | ds->ds_owner = NULL; | |
1176 | mutex_exit(&ds->ds_lock); | |
b5256303 TC |
1177 | } |
1178 | ||
13fe0198 | 1179 | spa_history_log_internal_ds(ds, "create", tx, ""); |
a0bd735a BP |
1180 | zvol_create_minors(dp->dp_spa, doca->doca_name, B_TRUE); |
1181 | ||
b5256303 | 1182 | dsl_dataset_rele_flags(ds, DS_HOLD_FLAG_DECRYPT, FTAG); |
13fe0198 | 1183 | dsl_dir_rele(pdd, FTAG); |
34dc7c2f BB |
1184 | } |
1185 | ||
1186 | int | |
428870ff | 1187 | dmu_objset_create(const char *name, dmu_objset_type_t type, uint64_t flags, |
b5256303 | 1188 | dsl_crypto_params_t *dcp, dmu_objset_create_sync_func_t func, void *arg) |
34dc7c2f | 1189 | { |
13fe0198 | 1190 | dmu_objset_create_arg_t doca; |
b5256303 | 1191 | dsl_crypto_params_t tmp_dcp = { 0 }; |
34dc7c2f | 1192 | |
13fe0198 MA |
1193 | doca.doca_name = name; |
1194 | doca.doca_cred = CRED(); | |
1195 | doca.doca_flags = flags; | |
1196 | doca.doca_userfunc = func; | |
1197 | doca.doca_userarg = arg; | |
1198 | doca.doca_type = type; | |
34dc7c2f | 1199 | |
b5256303 TC |
1200 | /* |
1201 | * Some callers (mostly for testing) do not provide a dcp on their | |
1202 | * own but various code inside the sync task will require it to be | |
1203 | * allocated. Rather than adding NULL checks throughout this code | |
1204 | * or adding dummy dcp's to all of the callers we simply create a | |
1205 | * dummy one here and use that. This zero dcp will have the same | |
1206 | * effect as asking for inheritence of all encryption params. | |
1207 | */ | |
1208 | doca.doca_dcp = (dcp != NULL) ? dcp : &tmp_dcp; | |
1209 | ||
13fe0198 | 1210 | return (dsl_sync_task(name, |
3d45fdd6 | 1211 | dmu_objset_create_check, dmu_objset_create_sync, &doca, |
b5256303 | 1212 | 6, ZFS_SPACE_CHECK_NORMAL)); |
34dc7c2f BB |
1213 | } |
1214 | ||
13fe0198 MA |
1215 | typedef struct dmu_objset_clone_arg { |
1216 | const char *doca_clone; | |
1217 | const char *doca_origin; | |
1218 | cred_t *doca_cred; | |
1219 | } dmu_objset_clone_arg_t; | |
1220 | ||
1221 | /*ARGSUSED*/ | |
1222 | static int | |
1223 | dmu_objset_clone_check(void *arg, dmu_tx_t *tx) | |
34dc7c2f | 1224 | { |
13fe0198 | 1225 | dmu_objset_clone_arg_t *doca = arg; |
428870ff BB |
1226 | dsl_dir_t *pdd; |
1227 | const char *tail; | |
13fe0198 MA |
1228 | int error; |
1229 | dsl_dataset_t *origin; | |
1230 | dsl_pool_t *dp = dmu_tx_pool(tx); | |
34dc7c2f | 1231 | |
13fe0198 | 1232 | if (strchr(doca->doca_clone, '@') != NULL) |
2e528b49 | 1233 | return (SET_ERROR(EINVAL)); |
13fe0198 | 1234 | |
eca7b760 IK |
1235 | if (strlen(doca->doca_clone) >= ZFS_MAX_DATASET_NAME_LEN) |
1236 | return (SET_ERROR(ENAMETOOLONG)); | |
1237 | ||
13fe0198 MA |
1238 | error = dsl_dir_hold(dp, doca->doca_clone, FTAG, &pdd, &tail); |
1239 | if (error != 0) | |
1240 | return (error); | |
428870ff | 1241 | if (tail == NULL) { |
13fe0198 | 1242 | dsl_dir_rele(pdd, FTAG); |
2e528b49 | 1243 | return (SET_ERROR(EEXIST)); |
34dc7c2f | 1244 | } |
1cddb8c9 | 1245 | |
788eb90c JJ |
1246 | error = dsl_fs_ss_limit_check(pdd, 1, ZFS_PROP_FILESYSTEM_LIMIT, NULL, |
1247 | doca->doca_cred); | |
1248 | if (error != 0) { | |
1249 | dsl_dir_rele(pdd, FTAG); | |
1250 | return (SET_ERROR(EDQUOT)); | |
1251 | } | |
428870ff | 1252 | |
13fe0198 | 1253 | error = dsl_dataset_hold(dp, doca->doca_origin, FTAG, &origin); |
b5256303 TC |
1254 | if (error != 0) { |
1255 | dsl_dir_rele(pdd, FTAG); | |
572e2857 | 1256 | return (error); |
b5256303 | 1257 | } |
572e2857 | 1258 | |
13fe0198 | 1259 | /* You can only clone snapshots, not the head datasets. */ |
0c66c32d | 1260 | if (!origin->ds_is_snapshot) { |
13fe0198 | 1261 | dsl_dataset_rele(origin, FTAG); |
b5256303 | 1262 | dsl_dir_rele(pdd, FTAG); |
2e528b49 | 1263 | return (SET_ERROR(EINVAL)); |
428870ff | 1264 | } |
b5256303 TC |
1265 | |
1266 | error = dmu_objset_clone_crypt_check(pdd, origin->ds_dir); | |
1267 | if (error != 0) { | |
1268 | dsl_dataset_rele(origin, FTAG); | |
1269 | dsl_dir_rele(pdd, FTAG); | |
1270 | return (error); | |
1271 | } | |
1272 | ||
13fe0198 | 1273 | dsl_dataset_rele(origin, FTAG); |
b5256303 | 1274 | dsl_dir_rele(pdd, FTAG); |
572e2857 | 1275 | |
13fe0198 | 1276 | return (0); |
9babb374 | 1277 | } |
34dc7c2f | 1278 | |
13fe0198 MA |
1279 | static void |
1280 | dmu_objset_clone_sync(void *arg, dmu_tx_t *tx) | |
34dc7c2f | 1281 | { |
13fe0198 MA |
1282 | dmu_objset_clone_arg_t *doca = arg; |
1283 | dsl_pool_t *dp = dmu_tx_pool(tx); | |
1284 | dsl_dir_t *pdd; | |
1285 | const char *tail; | |
1286 | dsl_dataset_t *origin, *ds; | |
1287 | uint64_t obj; | |
eca7b760 | 1288 | char namebuf[ZFS_MAX_DATASET_NAME_LEN]; |
6f1ffb06 | 1289 | |
13fe0198 MA |
1290 | VERIFY0(dsl_dir_hold(dp, doca->doca_clone, FTAG, &pdd, &tail)); |
1291 | VERIFY0(dsl_dataset_hold(dp, doca->doca_origin, FTAG, &origin)); | |
6f1ffb06 | 1292 | |
13fe0198 | 1293 | obj = dsl_dataset_create_sync(pdd, tail, origin, 0, |
b5256303 | 1294 | doca->doca_cred, NULL, tx); |
34dc7c2f | 1295 | |
13fe0198 MA |
1296 | VERIFY0(dsl_dataset_hold_obj(pdd->dd_pool, obj, FTAG, &ds)); |
1297 | dsl_dataset_name(origin, namebuf); | |
1298 | spa_history_log_internal_ds(ds, "clone", tx, | |
1299 | "origin=%s (%llu)", namebuf, origin->ds_object); | |
a0bd735a | 1300 | zvol_create_minors(dp->dp_spa, doca->doca_clone, B_TRUE); |
13fe0198 MA |
1301 | dsl_dataset_rele(ds, FTAG); |
1302 | dsl_dataset_rele(origin, FTAG); | |
1303 | dsl_dir_rele(pdd, FTAG); | |
34dc7c2f BB |
1304 | } |
1305 | ||
1306 | int | |
13fe0198 | 1307 | dmu_objset_clone(const char *clone, const char *origin) |
34dc7c2f | 1308 | { |
13fe0198 | 1309 | dmu_objset_clone_arg_t doca; |
34dc7c2f | 1310 | |
13fe0198 MA |
1311 | doca.doca_clone = clone; |
1312 | doca.doca_origin = origin; | |
1313 | doca.doca_cred = CRED(); | |
572e2857 | 1314 | |
13fe0198 | 1315 | return (dsl_sync_task(clone, |
3d45fdd6 | 1316 | dmu_objset_clone_check, dmu_objset_clone_sync, &doca, |
b5256303 | 1317 | 6, ZFS_SPACE_CHECK_NORMAL)); |
6f1ffb06 MA |
1318 | } |
1319 | ||
1320 | int | |
1321 | dmu_objset_snapshot_one(const char *fsname, const char *snapname) | |
1322 | { | |
1323 | int err; | |
1324 | char *longsnap = kmem_asprintf("%s@%s", fsname, snapname); | |
1325 | nvlist_t *snaps = fnvlist_alloc(); | |
1326 | ||
1327 | fnvlist_add_boolean(snaps, longsnap); | |
6f1ffb06 | 1328 | strfree(longsnap); |
13fe0198 MA |
1329 | err = dsl_dataset_snapshot(snaps, NULL, NULL); |
1330 | fnvlist_free(snaps); | |
6f1ffb06 MA |
1331 | return (err); |
1332 | } | |
1333 | ||
1de321e6 JX |
1334 | static void |
1335 | dmu_objset_upgrade_task_cb(void *data) | |
1336 | { | |
1337 | objset_t *os = data; | |
1338 | ||
1339 | mutex_enter(&os->os_upgrade_lock); | |
1340 | os->os_upgrade_status = EINTR; | |
1341 | if (!os->os_upgrade_exit) { | |
1342 | mutex_exit(&os->os_upgrade_lock); | |
1343 | ||
1344 | os->os_upgrade_status = os->os_upgrade_cb(os); | |
1345 | mutex_enter(&os->os_upgrade_lock); | |
1346 | } | |
1347 | os->os_upgrade_exit = B_TRUE; | |
1348 | os->os_upgrade_id = 0; | |
1349 | mutex_exit(&os->os_upgrade_lock); | |
c0daec32 | 1350 | dsl_dataset_long_rele(dmu_objset_ds(os), upgrade_tag); |
1de321e6 JX |
1351 | } |
1352 | ||
1353 | static void | |
1354 | dmu_objset_upgrade(objset_t *os, dmu_objset_upgrade_cb_t cb) | |
1355 | { | |
1356 | if (os->os_upgrade_id != 0) | |
1357 | return; | |
1358 | ||
c0daec32 AB |
1359 | ASSERT(dsl_pool_config_held(dmu_objset_pool(os))); |
1360 | dsl_dataset_long_hold(dmu_objset_ds(os), upgrade_tag); | |
1361 | ||
1de321e6 JX |
1362 | mutex_enter(&os->os_upgrade_lock); |
1363 | if (os->os_upgrade_id == 0 && os->os_upgrade_status == 0) { | |
1364 | os->os_upgrade_exit = B_FALSE; | |
1365 | os->os_upgrade_cb = cb; | |
1366 | os->os_upgrade_id = taskq_dispatch( | |
1367 | os->os_spa->spa_upgrade_taskq, | |
1368 | dmu_objset_upgrade_task_cb, os, TQ_SLEEP); | |
c0daec32 AB |
1369 | if (os->os_upgrade_id == TASKQID_INVALID) { |
1370 | dsl_dataset_long_rele(dmu_objset_ds(os), upgrade_tag); | |
1de321e6 | 1371 | os->os_upgrade_status = ENOMEM; |
c0daec32 | 1372 | } |
1de321e6 JX |
1373 | } |
1374 | mutex_exit(&os->os_upgrade_lock); | |
1375 | } | |
1376 | ||
1377 | static void | |
1378 | dmu_objset_upgrade_stop(objset_t *os) | |
1379 | { | |
1380 | mutex_enter(&os->os_upgrade_lock); | |
1381 | os->os_upgrade_exit = B_TRUE; | |
1382 | if (os->os_upgrade_id != 0) { | |
1383 | taskqid_t id = os->os_upgrade_id; | |
1384 | ||
1385 | os->os_upgrade_id = 0; | |
1386 | mutex_exit(&os->os_upgrade_lock); | |
1387 | ||
c0daec32 AB |
1388 | if ((taskq_cancel_id(os->os_spa->spa_upgrade_taskq, id)) == 0) { |
1389 | dsl_dataset_long_rele(dmu_objset_ds(os), upgrade_tag); | |
1390 | } | |
4807c0ba | 1391 | txg_wait_synced(os->os_spa->spa_dsl_pool, 0); |
1de321e6 JX |
1392 | } else { |
1393 | mutex_exit(&os->os_upgrade_lock); | |
1394 | } | |
1395 | } | |
1396 | ||
34dc7c2f | 1397 | static void |
64fc7762 | 1398 | dmu_objset_sync_dnodes(multilist_sublist_t *list, dmu_tx_t *tx) |
34dc7c2f BB |
1399 | { |
1400 | dnode_t *dn; | |
1401 | ||
64fc7762 | 1402 | while ((dn = multilist_sublist_head(list)) != NULL) { |
34dc7c2f BB |
1403 | ASSERT(dn->dn_object != DMU_META_DNODE_OBJECT); |
1404 | ASSERT(dn->dn_dbuf->db_data_pending); | |
1405 | /* | |
9babb374 BB |
1406 | * Initialize dn_zio outside dnode_sync() because the |
1407 | * meta-dnode needs to set it ouside dnode_sync(). | |
34dc7c2f BB |
1408 | */ |
1409 | dn->dn_zio = dn->dn_dbuf->db_data_pending->dr_zio; | |
1410 | ASSERT(dn->dn_zio); | |
1411 | ||
1412 | ASSERT3U(dn->dn_nlevels, <=, DN_MAX_LEVELS); | |
64fc7762 | 1413 | multilist_sublist_remove(list, dn); |
9babb374 | 1414 | |
64fc7762 MA |
1415 | multilist_t *newlist = dn->dn_objset->os_synced_dnodes; |
1416 | if (newlist != NULL) { | |
9babb374 | 1417 | (void) dnode_add_ref(dn, newlist); |
64fc7762 | 1418 | multilist_insert(newlist, dn); |
9babb374 BB |
1419 | } |
1420 | ||
34dc7c2f BB |
1421 | dnode_sync(dn, tx); |
1422 | } | |
1423 | } | |
1424 | ||
1425 | /* ARGSUSED */ | |
1426 | static void | |
428870ff | 1427 | dmu_objset_write_ready(zio_t *zio, arc_buf_t *abuf, void *arg) |
34dc7c2f | 1428 | { |
b128c09f | 1429 | blkptr_t *bp = zio->io_bp; |
428870ff | 1430 | objset_t *os = arg; |
34dc7c2f | 1431 | dnode_phys_t *dnp = &os->os_phys->os_meta_dnode; |
b5256303 | 1432 | uint64_t fill = 0; |
34dc7c2f | 1433 | |
9b67f605 | 1434 | ASSERT(!BP_IS_EMBEDDED(bp)); |
13fe0198 MA |
1435 | ASSERT3U(BP_GET_TYPE(bp), ==, DMU_OT_OBJSET); |
1436 | ASSERT0(BP_GET_LEVEL(bp)); | |
34dc7c2f BB |
1437 | |
1438 | /* | |
9babb374 BB |
1439 | * Update rootbp fill count: it should be the number of objects |
1440 | * allocated in the object set (not counting the "special" | |
1441 | * objects that are stored in the objset_phys_t -- the meta | |
9c5167d1 | 1442 | * dnode and user/group/project accounting objects). |
34dc7c2f | 1443 | */ |
1c27024e | 1444 | for (int i = 0; i < dnp->dn_nblkptr; i++) |
b5256303 TC |
1445 | fill += BP_GET_FILL(&dnp->dn_blkptr[i]); |
1446 | ||
1447 | BP_SET_FILL(bp, fill); | |
1448 | ||
cc9bb3e5 GM |
1449 | if (os->os_dsl_dataset != NULL) |
1450 | rrw_enter(&os->os_dsl_dataset->ds_bp_rwlock, RW_WRITER, FTAG); | |
1451 | *os->os_rootbp = *bp; | |
1452 | if (os->os_dsl_dataset != NULL) | |
1453 | rrw_exit(&os->os_dsl_dataset->ds_bp_rwlock, FTAG); | |
428870ff BB |
1454 | } |
1455 | ||
1456 | /* ARGSUSED */ | |
1457 | static void | |
1458 | dmu_objset_write_done(zio_t *zio, arc_buf_t *abuf, void *arg) | |
1459 | { | |
1460 | blkptr_t *bp = zio->io_bp; | |
1461 | blkptr_t *bp_orig = &zio->io_bp_orig; | |
1462 | objset_t *os = arg; | |
34dc7c2f | 1463 | |
b128c09f | 1464 | if (zio->io_flags & ZIO_FLAG_IO_REWRITE) { |
428870ff | 1465 | ASSERT(BP_EQUAL(bp, bp_orig)); |
b128c09f | 1466 | } else { |
428870ff BB |
1467 | dsl_dataset_t *ds = os->os_dsl_dataset; |
1468 | dmu_tx_t *tx = os->os_synctx; | |
1469 | ||
1470 | (void) dsl_dataset_block_kill(ds, bp_orig, tx, B_TRUE); | |
1471 | dsl_dataset_block_born(ds, bp, tx); | |
34dc7c2f | 1472 | } |
cc9bb3e5 | 1473 | kmem_free(bp, sizeof (*bp)); |
34dc7c2f BB |
1474 | } |
1475 | ||
64fc7762 MA |
1476 | typedef struct sync_dnodes_arg { |
1477 | multilist_t *sda_list; | |
1478 | int sda_sublist_idx; | |
1479 | multilist_t *sda_newlist; | |
1480 | dmu_tx_t *sda_tx; | |
1481 | } sync_dnodes_arg_t; | |
1482 | ||
1483 | static void | |
1484 | sync_dnodes_task(void *arg) | |
1485 | { | |
1486 | sync_dnodes_arg_t *sda = arg; | |
1487 | ||
1488 | multilist_sublist_t *ms = | |
1489 | multilist_sublist_lock(sda->sda_list, sda->sda_sublist_idx); | |
1490 | ||
1491 | dmu_objset_sync_dnodes(ms, sda->sda_tx); | |
1492 | ||
1493 | multilist_sublist_unlock(ms); | |
1494 | ||
1495 | kmem_free(sda, sizeof (*sda)); | |
1496 | } | |
1497 | ||
1498 | ||
34dc7c2f BB |
1499 | /* called from dsl */ |
1500 | void | |
428870ff | 1501 | dmu_objset_sync(objset_t *os, zio_t *pio, dmu_tx_t *tx) |
34dc7c2f BB |
1502 | { |
1503 | int txgoff; | |
5dbd68a3 | 1504 | zbookmark_phys_t zb; |
428870ff | 1505 | zio_prop_t zp; |
34dc7c2f BB |
1506 | zio_t *zio; |
1507 | list_t *list; | |
1508 | dbuf_dirty_record_t *dr; | |
cc9bb3e5 GM |
1509 | blkptr_t *blkptr_copy = kmem_alloc(sizeof (*os->os_rootbp), KM_SLEEP); |
1510 | *blkptr_copy = *os->os_rootbp; | |
34dc7c2f BB |
1511 | |
1512 | dprintf_ds(os->os_dsl_dataset, "txg=%llu\n", tx->tx_txg); | |
1513 | ||
1514 | ASSERT(dmu_tx_is_syncing(tx)); | |
1515 | /* XXX the write_done callback should really give us the tx... */ | |
1516 | os->os_synctx = tx; | |
1517 | ||
1518 | if (os->os_dsl_dataset == NULL) { | |
1519 | /* | |
1520 | * This is the MOS. If we have upgraded, | |
1521 | * spa_max_replication() could change, so reset | |
1522 | * os_copies here. | |
1523 | */ | |
1524 | os->os_copies = spa_max_replication(os->os_spa); | |
1525 | } | |
1526 | ||
1527 | /* | |
1528 | * Create the root block IO | |
1529 | */ | |
428870ff BB |
1530 | SET_BOOKMARK(&zb, os->os_dsl_dataset ? |
1531 | os->os_dsl_dataset->ds_object : DMU_META_OBJSET, | |
1532 | ZB_ROOT_OBJECT, ZB_ROOT_LEVEL, ZB_ROOT_BLKID); | |
294f6806 | 1533 | arc_release(os->os_phys_buf, &os->os_phys_buf); |
b128c09f | 1534 | |
82644107 | 1535 | dmu_write_policy(os, NULL, 0, 0, &zp); |
9babb374 | 1536 | |
b5256303 TC |
1537 | /* |
1538 | * If we are either claiming the ZIL or doing a raw receive write out | |
1539 | * the os_phys_buf raw. Neither of these actions will effect the MAC | |
1540 | * at this point. | |
1541 | */ | |
1b66810b | 1542 | if (os->os_next_write_raw[tx->tx_txg & TXG_MASK]) { |
b5256303 | 1543 | ASSERT(os->os_encrypted); |
1b66810b | 1544 | os->os_next_write_raw[tx->tx_txg & TXG_MASK] = B_FALSE; |
b5256303 TC |
1545 | arc_convert_to_raw(os->os_phys_buf, |
1546 | os->os_dsl_dataset->ds_object, ZFS_HOST_BYTEORDER, | |
1547 | DMU_OT_OBJSET, NULL, NULL, NULL); | |
1548 | } | |
1549 | ||
428870ff | 1550 | zio = arc_write(pio, os->os_spa, tx->tx_txg, |
cc9bb3e5 | 1551 | blkptr_copy, os->os_phys_buf, DMU_OS_IS_L2CACHEABLE(os), |
bc77ba73 PD |
1552 | &zp, dmu_objset_write_ready, NULL, NULL, dmu_objset_write_done, |
1553 | os, ZIO_PRIORITY_ASYNC_WRITE, ZIO_FLAG_MUSTSUCCEED, &zb); | |
34dc7c2f BB |
1554 | |
1555 | /* | |
9babb374 | 1556 | * Sync special dnodes - the parent IO for the sync is the root block |
34dc7c2f | 1557 | */ |
572e2857 BB |
1558 | DMU_META_DNODE(os)->dn_zio = zio; |
1559 | dnode_sync(DMU_META_DNODE(os), tx); | |
34dc7c2f | 1560 | |
9babb374 BB |
1561 | os->os_phys->os_flags = os->os_flags; |
1562 | ||
572e2857 BB |
1563 | if (DMU_USERUSED_DNODE(os) && |
1564 | DMU_USERUSED_DNODE(os)->dn_type != DMU_OT_NONE) { | |
1565 | DMU_USERUSED_DNODE(os)->dn_zio = zio; | |
1566 | dnode_sync(DMU_USERUSED_DNODE(os), tx); | |
1567 | DMU_GROUPUSED_DNODE(os)->dn_zio = zio; | |
1568 | dnode_sync(DMU_GROUPUSED_DNODE(os), tx); | |
9babb374 BB |
1569 | } |
1570 | ||
9c5167d1 NF |
1571 | if (DMU_PROJECTUSED_DNODE(os) && |
1572 | DMU_PROJECTUSED_DNODE(os)->dn_type != DMU_OT_NONE) { | |
1573 | DMU_PROJECTUSED_DNODE(os)->dn_zio = zio; | |
1574 | dnode_sync(DMU_PROJECTUSED_DNODE(os), tx); | |
1575 | } | |
1576 | ||
34dc7c2f BB |
1577 | txgoff = tx->tx_txg & TXG_MASK; |
1578 | ||
b5256303 TC |
1579 | if (dmu_objset_userused_enabled(os) && |
1580 | (!os->os_encrypted || !dmu_objset_is_receiving(os))) { | |
9babb374 BB |
1581 | /* |
1582 | * We must create the list here because it uses the | |
64fc7762 MA |
1583 | * dn_dirty_link[] of this txg. But it may already |
1584 | * exist because we call dsl_dataset_sync() twice per txg. | |
9babb374 | 1585 | */ |
64fc7762 MA |
1586 | if (os->os_synced_dnodes == NULL) { |
1587 | os->os_synced_dnodes = | |
1588 | multilist_create(sizeof (dnode_t), | |
1589 | offsetof(dnode_t, dn_dirty_link[txgoff]), | |
1590 | dnode_multilist_index_func); | |
1591 | } else { | |
1592 | ASSERT3U(os->os_synced_dnodes->ml_offset, ==, | |
1593 | offsetof(dnode_t, dn_dirty_link[txgoff])); | |
1594 | } | |
9babb374 BB |
1595 | } |
1596 | ||
64fc7762 MA |
1597 | for (int i = 0; |
1598 | i < multilist_get_num_sublists(os->os_dirty_dnodes[txgoff]); i++) { | |
1599 | sync_dnodes_arg_t *sda = kmem_alloc(sizeof (*sda), KM_SLEEP); | |
1600 | sda->sda_list = os->os_dirty_dnodes[txgoff]; | |
1601 | sda->sda_sublist_idx = i; | |
1602 | sda->sda_tx = tx; | |
1603 | (void) taskq_dispatch(dmu_objset_pool(os)->dp_sync_taskq, | |
1604 | sync_dnodes_task, sda, 0); | |
1605 | /* callback frees sda */ | |
1606 | } | |
1607 | taskq_wait(dmu_objset_pool(os)->dp_sync_taskq); | |
34dc7c2f | 1608 | |
572e2857 | 1609 | list = &DMU_META_DNODE(os)->dn_dirty_records[txgoff]; |
64fc7762 | 1610 | while ((dr = list_head(list)) != NULL) { |
13fe0198 | 1611 | ASSERT0(dr->dr_dbuf->db_level); |
34dc7c2f BB |
1612 | list_remove(list, dr); |
1613 | if (dr->dr_zio) | |
1614 | zio_nowait(dr->dr_zio); | |
1615 | } | |
68cbd56e NB |
1616 | |
1617 | /* Enable dnode backfill if enough objects have been freed. */ | |
1618 | if (os->os_freed_dnodes >= dmu_rescan_dnode_threshold) { | |
1619 | os->os_rescan_dnodes = B_TRUE; | |
1620 | os->os_freed_dnodes = 0; | |
1621 | } | |
1622 | ||
34dc7c2f BB |
1623 | /* |
1624 | * Free intent log blocks up to this tx. | |
1625 | */ | |
1626 | zil_sync(os->os_zil, tx); | |
b128c09f | 1627 | os->os_phys->os_zil_header = os->os_zil_header; |
34dc7c2f BB |
1628 | zio_nowait(zio); |
1629 | } | |
1630 | ||
428870ff BB |
1631 | boolean_t |
1632 | dmu_objset_is_dirty(objset_t *os, uint64_t txg) | |
1633 | { | |
64fc7762 | 1634 | return (!multilist_is_empty(os->os_dirty_dnodes[txg & TXG_MASK])); |
428870ff BB |
1635 | } |
1636 | ||
572e2857 | 1637 | static objset_used_cb_t *used_cbs[DMU_OST_NUMTYPES]; |
9babb374 BB |
1638 | |
1639 | void | |
1640 | dmu_objset_register_type(dmu_objset_type_t ost, objset_used_cb_t *cb) | |
1641 | { | |
1642 | used_cbs[ost] = cb; | |
1643 | } | |
1644 | ||
1645 | boolean_t | |
428870ff | 1646 | dmu_objset_userused_enabled(objset_t *os) |
9babb374 BB |
1647 | { |
1648 | return (spa_version(os->os_spa) >= SPA_VERSION_USERSPACE && | |
572e2857 BB |
1649 | used_cbs[os->os_phys->os_type] != NULL && |
1650 | DMU_USERUSED_DNODE(os) != NULL); | |
9babb374 BB |
1651 | } |
1652 | ||
1de321e6 JX |
1653 | boolean_t |
1654 | dmu_objset_userobjused_enabled(objset_t *os) | |
1655 | { | |
1656 | return (dmu_objset_userused_enabled(os) && | |
1657 | spa_feature_is_enabled(os->os_spa, SPA_FEATURE_USEROBJ_ACCOUNTING)); | |
1658 | } | |
1659 | ||
9c5167d1 NF |
1660 | boolean_t |
1661 | dmu_objset_projectquota_enabled(objset_t *os) | |
1662 | { | |
1663 | return (used_cbs[os->os_phys->os_type] != NULL && | |
1664 | DMU_PROJECTUSED_DNODE(os) != NULL && | |
1665 | spa_feature_is_enabled(os->os_spa, SPA_FEATURE_PROJECT_QUOTA)); | |
1666 | } | |
1667 | ||
9b7a83cb JX |
1668 | typedef struct userquota_node { |
1669 | /* must be in the first filed, see userquota_update_cache() */ | |
1670 | char uqn_id[20 + DMU_OBJACCT_PREFIX_LEN]; | |
1671 | int64_t uqn_delta; | |
1672 | avl_node_t uqn_node; | |
1673 | } userquota_node_t; | |
1674 | ||
1675 | typedef struct userquota_cache { | |
1676 | avl_tree_t uqc_user_deltas; | |
1677 | avl_tree_t uqc_group_deltas; | |
9c5167d1 | 1678 | avl_tree_t uqc_project_deltas; |
9b7a83cb JX |
1679 | } userquota_cache_t; |
1680 | ||
1681 | static int | |
1682 | userquota_compare(const void *l, const void *r) | |
1683 | { | |
1684 | const userquota_node_t *luqn = l; | |
1685 | const userquota_node_t *ruqn = r; | |
e4ffa98d | 1686 | int rv; |
9b7a83cb JX |
1687 | |
1688 | /* | |
1689 | * NB: can only access uqn_id because userquota_update_cache() doesn't | |
1690 | * pass in an entire userquota_node_t. | |
1691 | */ | |
e4ffa98d BB |
1692 | rv = strcmp(luqn->uqn_id, ruqn->uqn_id); |
1693 | ||
1694 | return (AVL_ISIGN(rv)); | |
9b7a83cb JX |
1695 | } |
1696 | ||
1697 | static void | |
1698 | do_userquota_cacheflush(objset_t *os, userquota_cache_t *cache, dmu_tx_t *tx) | |
1699 | { | |
1700 | void *cookie; | |
1701 | userquota_node_t *uqn; | |
1702 | ||
1703 | ASSERT(dmu_tx_is_syncing(tx)); | |
1704 | ||
1705 | cookie = NULL; | |
1706 | while ((uqn = avl_destroy_nodes(&cache->uqc_user_deltas, | |
1707 | &cookie)) != NULL) { | |
64fc7762 MA |
1708 | /* |
1709 | * os_userused_lock protects against concurrent calls to | |
1710 | * zap_increment_int(). It's needed because zap_increment_int() | |
1711 | * is not thread-safe (i.e. not atomic). | |
1712 | */ | |
1713 | mutex_enter(&os->os_userused_lock); | |
9b7a83cb JX |
1714 | VERIFY0(zap_increment(os, DMU_USERUSED_OBJECT, |
1715 | uqn->uqn_id, uqn->uqn_delta, tx)); | |
64fc7762 | 1716 | mutex_exit(&os->os_userused_lock); |
9b7a83cb JX |
1717 | kmem_free(uqn, sizeof (*uqn)); |
1718 | } | |
1719 | avl_destroy(&cache->uqc_user_deltas); | |
1720 | ||
1721 | cookie = NULL; | |
1722 | while ((uqn = avl_destroy_nodes(&cache->uqc_group_deltas, | |
1723 | &cookie)) != NULL) { | |
64fc7762 | 1724 | mutex_enter(&os->os_userused_lock); |
9b7a83cb JX |
1725 | VERIFY0(zap_increment(os, DMU_GROUPUSED_OBJECT, |
1726 | uqn->uqn_id, uqn->uqn_delta, tx)); | |
64fc7762 | 1727 | mutex_exit(&os->os_userused_lock); |
9b7a83cb JX |
1728 | kmem_free(uqn, sizeof (*uqn)); |
1729 | } | |
1730 | avl_destroy(&cache->uqc_group_deltas); | |
9c5167d1 NF |
1731 | |
1732 | if (dmu_objset_projectquota_enabled(os)) { | |
1733 | cookie = NULL; | |
1734 | while ((uqn = avl_destroy_nodes(&cache->uqc_project_deltas, | |
1735 | &cookie)) != NULL) { | |
1736 | mutex_enter(&os->os_userused_lock); | |
1737 | VERIFY0(zap_increment(os, DMU_PROJECTUSED_OBJECT, | |
1738 | uqn->uqn_id, uqn->uqn_delta, tx)); | |
1739 | mutex_exit(&os->os_userused_lock); | |
1740 | kmem_free(uqn, sizeof (*uqn)); | |
1741 | } | |
1742 | avl_destroy(&cache->uqc_project_deltas); | |
1743 | } | |
9b7a83cb JX |
1744 | } |
1745 | ||
1746 | static void | |
1747 | userquota_update_cache(avl_tree_t *avl, const char *id, int64_t delta) | |
1748 | { | |
1749 | userquota_node_t *uqn; | |
1750 | avl_index_t idx; | |
1751 | ||
1752 | ASSERT(strlen(id) < sizeof (uqn->uqn_id)); | |
1753 | /* | |
1754 | * Use id directly for searching because uqn_id is the first field of | |
1755 | * userquota_node_t and fields after uqn_id won't be accessed in | |
1756 | * avl_find(). | |
1757 | */ | |
1758 | uqn = avl_find(avl, (const void *)id, &idx); | |
1759 | if (uqn == NULL) { | |
1760 | uqn = kmem_zalloc(sizeof (*uqn), KM_SLEEP); | |
1f51b525 | 1761 | strlcpy(uqn->uqn_id, id, sizeof (uqn->uqn_id)); |
9b7a83cb JX |
1762 | avl_insert(avl, uqn, idx); |
1763 | } | |
1764 | uqn->uqn_delta += delta; | |
1765 | } | |
1766 | ||
428870ff | 1767 | static void |
9c5167d1 NF |
1768 | do_userquota_update(objset_t *os, userquota_cache_t *cache, uint64_t used, |
1769 | uint64_t flags, uint64_t user, uint64_t group, uint64_t project, | |
1770 | boolean_t subtract) | |
428870ff | 1771 | { |
9c5167d1 | 1772 | if (flags & DNODE_FLAG_USERUSED_ACCOUNTED) { |
50c957f7 | 1773 | int64_t delta = DNODE_MIN_SIZE + used; |
9b7a83cb JX |
1774 | char name[20]; |
1775 | ||
428870ff BB |
1776 | if (subtract) |
1777 | delta = -delta; | |
9b7a83cb JX |
1778 | |
1779 | (void) sprintf(name, "%llx", (longlong_t)user); | |
1780 | userquota_update_cache(&cache->uqc_user_deltas, name, delta); | |
1781 | ||
1782 | (void) sprintf(name, "%llx", (longlong_t)group); | |
1783 | userquota_update_cache(&cache->uqc_group_deltas, name, delta); | |
9c5167d1 NF |
1784 | |
1785 | if (dmu_objset_projectquota_enabled(os)) { | |
1786 | (void) sprintf(name, "%llx", (longlong_t)project); | |
1787 | userquota_update_cache(&cache->uqc_project_deltas, | |
1788 | name, delta); | |
1789 | } | |
428870ff BB |
1790 | } |
1791 | } | |
1792 | ||
1de321e6 | 1793 | static void |
9c5167d1 NF |
1794 | do_userobjquota_update(objset_t *os, userquota_cache_t *cache, uint64_t flags, |
1795 | uint64_t user, uint64_t group, uint64_t project, boolean_t subtract) | |
1de321e6 JX |
1796 | { |
1797 | if (flags & DNODE_FLAG_USEROBJUSED_ACCOUNTED) { | |
1798 | char name[20 + DMU_OBJACCT_PREFIX_LEN]; | |
9b7a83cb | 1799 | int delta = subtract ? -1 : 1; |
1de321e6 JX |
1800 | |
1801 | (void) snprintf(name, sizeof (name), DMU_OBJACCT_PREFIX "%llx", | |
1802 | (longlong_t)user); | |
9b7a83cb | 1803 | userquota_update_cache(&cache->uqc_user_deltas, name, delta); |
1de321e6 JX |
1804 | |
1805 | (void) snprintf(name, sizeof (name), DMU_OBJACCT_PREFIX "%llx", | |
1806 | (longlong_t)group); | |
9b7a83cb | 1807 | userquota_update_cache(&cache->uqc_group_deltas, name, delta); |
9c5167d1 NF |
1808 | |
1809 | if (dmu_objset_projectquota_enabled(os)) { | |
1810 | (void) snprintf(name, sizeof (name), | |
1811 | DMU_OBJACCT_PREFIX "%llx", (longlong_t)project); | |
1812 | userquota_update_cache(&cache->uqc_project_deltas, | |
1813 | name, delta); | |
1814 | } | |
1de321e6 JX |
1815 | } |
1816 | } | |
1817 | ||
64fc7762 MA |
1818 | typedef struct userquota_updates_arg { |
1819 | objset_t *uua_os; | |
1820 | int uua_sublist_idx; | |
1821 | dmu_tx_t *uua_tx; | |
1822 | } userquota_updates_arg_t; | |
1823 | ||
1824 | static void | |
1825 | userquota_updates_task(void *arg) | |
9babb374 | 1826 | { |
64fc7762 MA |
1827 | userquota_updates_arg_t *uua = arg; |
1828 | objset_t *os = uua->uua_os; | |
1829 | dmu_tx_t *tx = uua->uua_tx; | |
9babb374 | 1830 | dnode_t *dn; |
9b7a83cb | 1831 | userquota_cache_t cache = { { 0 } }; |
9babb374 | 1832 | |
64fc7762 MA |
1833 | multilist_sublist_t *list = |
1834 | multilist_sublist_lock(os->os_synced_dnodes, uua->uua_sublist_idx); | |
9babb374 | 1835 | |
64fc7762 MA |
1836 | ASSERT(multilist_sublist_head(list) == NULL || |
1837 | dmu_objset_userused_enabled(os)); | |
9b7a83cb JX |
1838 | avl_create(&cache.uqc_user_deltas, userquota_compare, |
1839 | sizeof (userquota_node_t), offsetof(userquota_node_t, uqn_node)); | |
1840 | avl_create(&cache.uqc_group_deltas, userquota_compare, | |
1841 | sizeof (userquota_node_t), offsetof(userquota_node_t, uqn_node)); | |
9c5167d1 NF |
1842 | if (dmu_objset_projectquota_enabled(os)) |
1843 | avl_create(&cache.uqc_project_deltas, userquota_compare, | |
1844 | sizeof (userquota_node_t), offsetof(userquota_node_t, | |
1845 | uqn_node)); | |
9b7a83cb | 1846 | |
64fc7762 | 1847 | while ((dn = multilist_sublist_head(list)) != NULL) { |
572e2857 | 1848 | int flags; |
9babb374 | 1849 | ASSERT(!DMU_OBJECT_IS_SPECIAL(dn->dn_object)); |
9babb374 BB |
1850 | ASSERT(dn->dn_phys->dn_type == DMU_OT_NONE || |
1851 | dn->dn_phys->dn_flags & | |
1852 | DNODE_FLAG_USERUSED_ACCOUNTED); | |
1853 | ||
572e2857 BB |
1854 | flags = dn->dn_id_flags; |
1855 | ASSERT(flags); | |
1856 | if (flags & DN_ID_OLD_EXIST) { | |
9c5167d1 NF |
1857 | do_userquota_update(os, &cache, dn->dn_oldused, |
1858 | dn->dn_oldflags, dn->dn_olduid, dn->dn_oldgid, | |
1859 | dn->dn_oldprojid, B_TRUE); | |
1860 | do_userobjquota_update(os, &cache, dn->dn_oldflags, | |
1861 | dn->dn_olduid, dn->dn_oldgid, | |
1862 | dn->dn_oldprojid, B_TRUE); | |
428870ff | 1863 | } |
572e2857 | 1864 | if (flags & DN_ID_NEW_EXIST) { |
9c5167d1 | 1865 | do_userquota_update(os, &cache, |
9b7a83cb | 1866 | DN_USED_BYTES(dn->dn_phys), dn->dn_phys->dn_flags, |
9c5167d1 NF |
1867 | dn->dn_newuid, dn->dn_newgid, |
1868 | dn->dn_newprojid, B_FALSE); | |
1869 | do_userobjquota_update(os, &cache, | |
1870 | dn->dn_phys->dn_flags, dn->dn_newuid, dn->dn_newgid, | |
1871 | dn->dn_newprojid, B_FALSE); | |
428870ff BB |
1872 | } |
1873 | ||
572e2857 | 1874 | mutex_enter(&dn->dn_mtx); |
428870ff BB |
1875 | dn->dn_oldused = 0; |
1876 | dn->dn_oldflags = 0; | |
1877 | if (dn->dn_id_flags & DN_ID_NEW_EXIST) { | |
1878 | dn->dn_olduid = dn->dn_newuid; | |
1879 | dn->dn_oldgid = dn->dn_newgid; | |
9c5167d1 | 1880 | dn->dn_oldprojid = dn->dn_newprojid; |
428870ff BB |
1881 | dn->dn_id_flags |= DN_ID_OLD_EXIST; |
1882 | if (dn->dn_bonuslen == 0) | |
1883 | dn->dn_id_flags |= DN_ID_CHKED_SPILL; | |
1884 | else | |
1885 | dn->dn_id_flags |= DN_ID_CHKED_BONUS; | |
1886 | } | |
1887 | dn->dn_id_flags &= ~(DN_ID_NEW_EXIST); | |
9babb374 BB |
1888 | mutex_exit(&dn->dn_mtx); |
1889 | ||
64fc7762 MA |
1890 | multilist_sublist_remove(list, dn); |
1891 | dnode_rele(dn, os->os_synced_dnodes); | |
9babb374 | 1892 | } |
9b7a83cb | 1893 | do_userquota_cacheflush(os, &cache, tx); |
64fc7762 MA |
1894 | multilist_sublist_unlock(list); |
1895 | kmem_free(uua, sizeof (*uua)); | |
1896 | } | |
1897 | ||
1898 | void | |
1899 | dmu_objset_do_userquota_updates(objset_t *os, dmu_tx_t *tx) | |
1900 | { | |
1901 | if (!dmu_objset_userused_enabled(os)) | |
1902 | return; | |
1903 | ||
163a8c28 TC |
1904 | /* |
1905 | * If this is a raw receive just return and handle accounting | |
1906 | * later when we have the keys loaded. We also don't do user | |
1907 | * accounting during claiming since the datasets are not owned | |
1908 | * for the duration of claiming and this txg should only be | |
1909 | * used for recovery. | |
1910 | */ | |
b5256303 TC |
1911 | if (os->os_encrypted && dmu_objset_is_receiving(os)) |
1912 | return; | |
1913 | ||
163a8c28 TC |
1914 | if (tx->tx_txg <= os->os_spa->spa_claim_max_txg) |
1915 | return; | |
1916 | ||
9c5167d1 | 1917 | /* Allocate the user/group/project used objects if necessary. */ |
64fc7762 MA |
1918 | if (DMU_USERUSED_DNODE(os)->dn_type == DMU_OT_NONE) { |
1919 | VERIFY0(zap_create_claim(os, | |
1920 | DMU_USERUSED_OBJECT, | |
1921 | DMU_OT_USERGROUP_USED, DMU_OT_NONE, 0, tx)); | |
1922 | VERIFY0(zap_create_claim(os, | |
1923 | DMU_GROUPUSED_OBJECT, | |
1924 | DMU_OT_USERGROUP_USED, DMU_OT_NONE, 0, tx)); | |
1925 | } | |
1926 | ||
9c5167d1 NF |
1927 | if (dmu_objset_projectquota_enabled(os) && |
1928 | DMU_PROJECTUSED_DNODE(os)->dn_type == DMU_OT_NONE) { | |
1929 | VERIFY0(zap_create_claim(os, DMU_PROJECTUSED_OBJECT, | |
1930 | DMU_OT_USERGROUP_USED, DMU_OT_NONE, 0, tx)); | |
1931 | } | |
1932 | ||
64fc7762 MA |
1933 | for (int i = 0; |
1934 | i < multilist_get_num_sublists(os->os_synced_dnodes); i++) { | |
1935 | userquota_updates_arg_t *uua = | |
1936 | kmem_alloc(sizeof (*uua), KM_SLEEP); | |
1937 | uua->uua_os = os; | |
1938 | uua->uua_sublist_idx = i; | |
1939 | uua->uua_tx = tx; | |
1940 | /* note: caller does taskq_wait() */ | |
1941 | (void) taskq_dispatch(dmu_objset_pool(os)->dp_sync_taskq, | |
1942 | userquota_updates_task, uua, 0); | |
1943 | /* callback frees uua */ | |
1944 | } | |
9babb374 BB |
1945 | } |
1946 | ||
428870ff BB |
1947 | /* |
1948 | * Returns a pointer to data to find uid/gid from | |
1949 | * | |
1950 | * If a dirty record for transaction group that is syncing can't | |
1951 | * be found then NULL is returned. In the NULL case it is assumed | |
1952 | * the uid/gid aren't changing. | |
1953 | */ | |
1954 | static void * | |
1955 | dmu_objset_userquota_find_data(dmu_buf_impl_t *db, dmu_tx_t *tx) | |
1956 | { | |
1957 | dbuf_dirty_record_t *dr, **drp; | |
1958 | void *data; | |
1959 | ||
1960 | if (db->db_dirtycnt == 0) | |
1961 | return (db->db.db_data); /* Nothing is changing */ | |
1962 | ||
1963 | for (drp = &db->db_last_dirty; (dr = *drp) != NULL; drp = &dr->dr_next) | |
1964 | if (dr->dr_txg == tx->tx_txg) | |
1965 | break; | |
1966 | ||
572e2857 | 1967 | if (dr == NULL) { |
428870ff | 1968 | data = NULL; |
572e2857 BB |
1969 | } else { |
1970 | dnode_t *dn; | |
1971 | ||
1972 | DB_DNODE_ENTER(dr->dr_dbuf); | |
1973 | dn = DB_DNODE(dr->dr_dbuf); | |
1974 | ||
1975 | if (dn->dn_bonuslen == 0 && | |
1976 | dr->dr_dbuf->db_blkid == DMU_SPILL_BLKID) | |
1977 | data = dr->dt.dl.dr_data->b_data; | |
1978 | else | |
1979 | data = dr->dt.dl.dr_data; | |
1980 | ||
1981 | DB_DNODE_EXIT(dr->dr_dbuf); | |
1982 | } | |
1983 | ||
428870ff BB |
1984 | return (data); |
1985 | } | |
1986 | ||
1987 | void | |
1988 | dmu_objset_userquota_get_ids(dnode_t *dn, boolean_t before, dmu_tx_t *tx) | |
1989 | { | |
1990 | objset_t *os = dn->dn_objset; | |
1991 | void *data = NULL; | |
1992 | dmu_buf_impl_t *db = NULL; | |
a117a6d6 GW |
1993 | uint64_t *user = NULL; |
1994 | uint64_t *group = NULL; | |
9c5167d1 | 1995 | uint64_t *project = NULL; |
428870ff BB |
1996 | int flags = dn->dn_id_flags; |
1997 | int error; | |
1998 | boolean_t have_spill = B_FALSE; | |
1999 | ||
2000 | if (!dmu_objset_userused_enabled(dn->dn_objset)) | |
2001 | return; | |
2002 | ||
b5256303 TC |
2003 | /* |
2004 | * Raw receives introduce a problem with user accounting. Raw | |
2005 | * receives cannot update the user accounting info because the | |
2006 | * user ids and the sizes are encrypted. To guarantee that we | |
2007 | * never end up with bad user accounting, we simply disable it | |
2008 | * during raw receives. We also disable this for normal receives | |
2009 | * so that an incremental raw receive may be done on top of an | |
2010 | * existing non-raw receive. | |
2011 | */ | |
2012 | if (os->os_encrypted && dmu_objset_is_receiving(os)) | |
2013 | return; | |
2014 | ||
428870ff BB |
2015 | if (before && (flags & (DN_ID_CHKED_BONUS|DN_ID_OLD_EXIST| |
2016 | DN_ID_CHKED_SPILL))) | |
2017 | return; | |
2018 | ||
2019 | if (before && dn->dn_bonuslen != 0) | |
2020 | data = DN_BONUS(dn->dn_phys); | |
2021 | else if (!before && dn->dn_bonuslen != 0) { | |
a3000f93 BB |
2022 | if (dn->dn_bonus) { |
2023 | db = dn->dn_bonus; | |
428870ff BB |
2024 | mutex_enter(&db->db_mtx); |
2025 | data = dmu_objset_userquota_find_data(db, tx); | |
2026 | } else { | |
2027 | data = DN_BONUS(dn->dn_phys); | |
2028 | } | |
2029 | } else if (dn->dn_bonuslen == 0 && dn->dn_bonustype == DMU_OT_SA) { | |
2030 | int rf = 0; | |
2031 | ||
2032 | if (RW_WRITE_HELD(&dn->dn_struct_rwlock)) | |
2033 | rf |= DB_RF_HAVESTRUCT; | |
572e2857 BB |
2034 | error = dmu_spill_hold_by_dnode(dn, |
2035 | rf | DB_RF_MUST_SUCCEED, | |
428870ff BB |
2036 | FTAG, (dmu_buf_t **)&db); |
2037 | ASSERT(error == 0); | |
2038 | mutex_enter(&db->db_mtx); | |
2039 | data = (before) ? db->db.db_data : | |
2040 | dmu_objset_userquota_find_data(db, tx); | |
2041 | have_spill = B_TRUE; | |
2042 | } else { | |
2043 | mutex_enter(&dn->dn_mtx); | |
2044 | dn->dn_id_flags |= DN_ID_CHKED_BONUS; | |
2045 | mutex_exit(&dn->dn_mtx); | |
2046 | return; | |
2047 | } | |
2048 | ||
2049 | if (before) { | |
2050 | ASSERT(data); | |
2051 | user = &dn->dn_olduid; | |
2052 | group = &dn->dn_oldgid; | |
9c5167d1 | 2053 | project = &dn->dn_oldprojid; |
428870ff BB |
2054 | } else if (data) { |
2055 | user = &dn->dn_newuid; | |
2056 | group = &dn->dn_newgid; | |
9c5167d1 | 2057 | project = &dn->dn_newprojid; |
428870ff BB |
2058 | } |
2059 | ||
2060 | /* | |
2061 | * Must always call the callback in case the object | |
2062 | * type has changed and that type isn't an object type to track | |
2063 | */ | |
2064 | error = used_cbs[os->os_phys->os_type](dn->dn_bonustype, data, | |
9c5167d1 | 2065 | user, group, project); |
428870ff BB |
2066 | |
2067 | /* | |
2068 | * Preserve existing uid/gid when the callback can't determine | |
2069 | * what the new uid/gid are and the callback returned EEXIST. | |
2070 | * The EEXIST error tells us to just use the existing uid/gid. | |
2071 | * If we don't know what the old values are then just assign | |
2072 | * them to 0, since that is a new file being created. | |
2073 | */ | |
2074 | if (!before && data == NULL && error == EEXIST) { | |
2075 | if (flags & DN_ID_OLD_EXIST) { | |
2076 | dn->dn_newuid = dn->dn_olduid; | |
2077 | dn->dn_newgid = dn->dn_oldgid; | |
2705ebf0 | 2078 | dn->dn_newprojid = dn->dn_oldprojid; |
428870ff BB |
2079 | } else { |
2080 | dn->dn_newuid = 0; | |
2081 | dn->dn_newgid = 0; | |
9c5167d1 | 2082 | dn->dn_newprojid = ZFS_DEFAULT_PROJID; |
428870ff BB |
2083 | } |
2084 | error = 0; | |
2085 | } | |
2086 | ||
2087 | if (db) | |
2088 | mutex_exit(&db->db_mtx); | |
2089 | ||
2090 | mutex_enter(&dn->dn_mtx); | |
2091 | if (error == 0 && before) | |
2092 | dn->dn_id_flags |= DN_ID_OLD_EXIST; | |
2093 | if (error == 0 && !before) | |
2094 | dn->dn_id_flags |= DN_ID_NEW_EXIST; | |
2095 | ||
2096 | if (have_spill) { | |
2097 | dn->dn_id_flags |= DN_ID_CHKED_SPILL; | |
2098 | } else { | |
2099 | dn->dn_id_flags |= DN_ID_CHKED_BONUS; | |
2100 | } | |
2101 | mutex_exit(&dn->dn_mtx); | |
a3000f93 | 2102 | if (have_spill) |
428870ff BB |
2103 | dmu_buf_rele((dmu_buf_t *)db, FTAG); |
2104 | } | |
2105 | ||
9babb374 BB |
2106 | boolean_t |
2107 | dmu_objset_userspace_present(objset_t *os) | |
2108 | { | |
428870ff | 2109 | return (os->os_phys->os_flags & |
9babb374 BB |
2110 | OBJSET_FLAG_USERACCOUNTING_COMPLETE); |
2111 | } | |
2112 | ||
1de321e6 JX |
2113 | boolean_t |
2114 | dmu_objset_userobjspace_present(objset_t *os) | |
2115 | { | |
2116 | return (os->os_phys->os_flags & | |
2117 | OBJSET_FLAG_USEROBJACCOUNTING_COMPLETE); | |
2118 | } | |
2119 | ||
9c5167d1 NF |
2120 | boolean_t |
2121 | dmu_objset_projectquota_present(objset_t *os) | |
2122 | { | |
2123 | return (os->os_phys->os_flags & | |
2124 | OBJSET_FLAG_PROJECTQUOTA_COMPLETE); | |
2125 | } | |
2126 | ||
1de321e6 JX |
2127 | static int |
2128 | dmu_objset_space_upgrade(objset_t *os) | |
9babb374 BB |
2129 | { |
2130 | uint64_t obj; | |
2131 | int err = 0; | |
2132 | ||
9babb374 BB |
2133 | /* |
2134 | * We simply need to mark every object dirty, so that it will be | |
2135 | * synced out and now accounted. If this is called | |
2136 | * concurrently, or if we already did some work before crashing, | |
2137 | * that's fine, since we track each object's accounted state | |
2138 | * independently. | |
2139 | */ | |
2140 | ||
2141 | for (obj = 0; err == 0; err = dmu_object_next(os, &obj, FALSE, 0)) { | |
45d1cae3 | 2142 | dmu_tx_t *tx; |
9babb374 BB |
2143 | dmu_buf_t *db; |
2144 | int objerr; | |
2145 | ||
1de321e6 JX |
2146 | mutex_enter(&os->os_upgrade_lock); |
2147 | if (os->os_upgrade_exit) | |
2148 | err = SET_ERROR(EINTR); | |
2149 | mutex_exit(&os->os_upgrade_lock); | |
2150 | if (err != 0) | |
2151 | return (err); | |
2152 | ||
9babb374 | 2153 | if (issig(JUSTLOOKING) && issig(FORREAL)) |
2e528b49 | 2154 | return (SET_ERROR(EINTR)); |
9babb374 BB |
2155 | |
2156 | objerr = dmu_bonus_hold(os, obj, FTAG, &db); | |
13fe0198 | 2157 | if (objerr != 0) |
9babb374 | 2158 | continue; |
45d1cae3 | 2159 | tx = dmu_tx_create(os); |
9babb374 BB |
2160 | dmu_tx_hold_bonus(tx, obj); |
2161 | objerr = dmu_tx_assign(tx, TXG_WAIT); | |
13fe0198 | 2162 | if (objerr != 0) { |
d22323e8 | 2163 | dmu_buf_rele(db, FTAG); |
9babb374 BB |
2164 | dmu_tx_abort(tx); |
2165 | continue; | |
2166 | } | |
2167 | dmu_buf_will_dirty(db, tx); | |
2168 | dmu_buf_rele(db, FTAG); | |
2169 | dmu_tx_commit(tx); | |
2170 | } | |
1de321e6 JX |
2171 | return (0); |
2172 | } | |
2173 | ||
2174 | int | |
2175 | dmu_objset_userspace_upgrade(objset_t *os) | |
2176 | { | |
2177 | int err = 0; | |
2178 | ||
2179 | if (dmu_objset_userspace_present(os)) | |
2180 | return (0); | |
2181 | if (dmu_objset_is_snapshot(os)) | |
2182 | return (SET_ERROR(EINVAL)); | |
2183 | if (!dmu_objset_userused_enabled(os)) | |
2184 | return (SET_ERROR(ENOTSUP)); | |
2185 | ||
2186 | err = dmu_objset_space_upgrade(os); | |
2187 | if (err) | |
2188 | return (err); | |
9babb374 | 2189 | |
428870ff | 2190 | os->os_flags |= OBJSET_FLAG_USERACCOUNTING_COMPLETE; |
9babb374 BB |
2191 | txg_wait_synced(dmu_objset_pool(os), 0); |
2192 | return (0); | |
2193 | } | |
2194 | ||
1de321e6 | 2195 | static int |
9c5167d1 | 2196 | dmu_objset_id_quota_upgrade_cb(objset_t *os) |
1de321e6 JX |
2197 | { |
2198 | int err = 0; | |
2199 | ||
9c5167d1 NF |
2200 | if (dmu_objset_userobjspace_present(os) && |
2201 | dmu_objset_projectquota_present(os)) | |
1de321e6 JX |
2202 | return (0); |
2203 | if (dmu_objset_is_snapshot(os)) | |
2204 | return (SET_ERROR(EINVAL)); | |
2205 | if (!dmu_objset_userobjused_enabled(os)) | |
2206 | return (SET_ERROR(ENOTSUP)); | |
9c5167d1 NF |
2207 | if (!dmu_objset_projectquota_enabled(os) && |
2208 | dmu_objset_userobjspace_present(os)) | |
2209 | return (SET_ERROR(ENOTSUP)); | |
1de321e6 JX |
2210 | |
2211 | dmu_objset_ds(os)->ds_feature_activation_needed[ | |
2212 | SPA_FEATURE_USEROBJ_ACCOUNTING] = B_TRUE; | |
9c5167d1 NF |
2213 | if (dmu_objset_projectquota_enabled(os)) |
2214 | dmu_objset_ds(os)->ds_feature_activation_needed[ | |
2215 | SPA_FEATURE_PROJECT_QUOTA] = B_TRUE; | |
1de321e6 JX |
2216 | |
2217 | err = dmu_objset_space_upgrade(os); | |
2218 | if (err) | |
2219 | return (err); | |
2220 | ||
2221 | os->os_flags |= OBJSET_FLAG_USEROBJACCOUNTING_COMPLETE; | |
9c5167d1 NF |
2222 | if (dmu_objset_projectquota_enabled(os)) |
2223 | os->os_flags |= OBJSET_FLAG_PROJECTQUOTA_COMPLETE; | |
2224 | ||
1de321e6 JX |
2225 | txg_wait_synced(dmu_objset_pool(os), 0); |
2226 | return (0); | |
2227 | } | |
2228 | ||
2229 | void | |
9c5167d1 | 2230 | dmu_objset_id_quota_upgrade(objset_t *os) |
1de321e6 | 2231 | { |
9c5167d1 | 2232 | dmu_objset_upgrade(os, dmu_objset_id_quota_upgrade_cb); |
1de321e6 JX |
2233 | } |
2234 | ||
126ae9f4 JX |
2235 | boolean_t |
2236 | dmu_objset_userobjspace_upgradable(objset_t *os) | |
2237 | { | |
2238 | return (dmu_objset_type(os) == DMU_OST_ZFS && | |
2239 | !dmu_objset_is_snapshot(os) && | |
2240 | dmu_objset_userobjused_enabled(os) && | |
2241 | !dmu_objset_userobjspace_present(os)); | |
2242 | } | |
2243 | ||
9c5167d1 NF |
2244 | boolean_t |
2245 | dmu_objset_projectquota_upgradable(objset_t *os) | |
2246 | { | |
2247 | return (dmu_objset_type(os) == DMU_OST_ZFS && | |
2248 | !dmu_objset_is_snapshot(os) && | |
2249 | dmu_objset_projectquota_enabled(os) && | |
2250 | !dmu_objset_projectquota_present(os)); | |
2251 | } | |
2252 | ||
34dc7c2f BB |
2253 | void |
2254 | dmu_objset_space(objset_t *os, uint64_t *refdbytesp, uint64_t *availbytesp, | |
2255 | uint64_t *usedobjsp, uint64_t *availobjsp) | |
2256 | { | |
428870ff | 2257 | dsl_dataset_space(os->os_dsl_dataset, refdbytesp, availbytesp, |
34dc7c2f BB |
2258 | usedobjsp, availobjsp); |
2259 | } | |
2260 | ||
2261 | uint64_t | |
2262 | dmu_objset_fsid_guid(objset_t *os) | |
2263 | { | |
428870ff | 2264 | return (dsl_dataset_fsid_guid(os->os_dsl_dataset)); |
34dc7c2f BB |
2265 | } |
2266 | ||
2267 | void | |
2268 | dmu_objset_fast_stat(objset_t *os, dmu_objset_stats_t *stat) | |
2269 | { | |
428870ff BB |
2270 | stat->dds_type = os->os_phys->os_type; |
2271 | if (os->os_dsl_dataset) | |
2272 | dsl_dataset_fast_stat(os->os_dsl_dataset, stat); | |
34dc7c2f BB |
2273 | } |
2274 | ||
2275 | void | |
2276 | dmu_objset_stats(objset_t *os, nvlist_t *nv) | |
2277 | { | |
428870ff BB |
2278 | ASSERT(os->os_dsl_dataset || |
2279 | os->os_phys->os_type == DMU_OST_META); | |
34dc7c2f | 2280 | |
428870ff BB |
2281 | if (os->os_dsl_dataset != NULL) |
2282 | dsl_dataset_stats(os->os_dsl_dataset, nv); | |
34dc7c2f BB |
2283 | |
2284 | dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_TYPE, | |
428870ff | 2285 | os->os_phys->os_type); |
9babb374 BB |
2286 | dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_USERACCOUNTING, |
2287 | dmu_objset_userspace_present(os)); | |
34dc7c2f BB |
2288 | } |
2289 | ||
2290 | int | |
2291 | dmu_objset_is_snapshot(objset_t *os) | |
2292 | { | |
428870ff | 2293 | if (os->os_dsl_dataset != NULL) |
0c66c32d | 2294 | return (os->os_dsl_dataset->ds_is_snapshot); |
34dc7c2f BB |
2295 | else |
2296 | return (B_FALSE); | |
2297 | } | |
2298 | ||
2299 | int | |
2300 | dmu_snapshot_realname(objset_t *os, char *name, char *real, int maxlen, | |
2301 | boolean_t *conflict) | |
2302 | { | |
428870ff | 2303 | dsl_dataset_t *ds = os->os_dsl_dataset; |
34dc7c2f BB |
2304 | uint64_t ignored; |
2305 | ||
d683ddbb | 2306 | if (dsl_dataset_phys(ds)->ds_snapnames_zapobj == 0) |
2e528b49 | 2307 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
2308 | |
2309 | return (zap_lookup_norm(ds->ds_dir->dd_pool->dp_meta_objset, | |
d683ddbb | 2310 | dsl_dataset_phys(ds)->ds_snapnames_zapobj, name, 8, 1, &ignored, |
9b7b9cd3 | 2311 | MT_NORMALIZE, real, maxlen, conflict)); |
34dc7c2f BB |
2312 | } |
2313 | ||
2314 | int | |
2315 | dmu_snapshot_list_next(objset_t *os, int namelen, char *name, | |
2316 | uint64_t *idp, uint64_t *offp, boolean_t *case_conflict) | |
2317 | { | |
428870ff | 2318 | dsl_dataset_t *ds = os->os_dsl_dataset; |
34dc7c2f BB |
2319 | zap_cursor_t cursor; |
2320 | zap_attribute_t attr; | |
2321 | ||
13fe0198 MA |
2322 | ASSERT(dsl_pool_config_held(dmu_objset_pool(os))); |
2323 | ||
d683ddbb | 2324 | if (dsl_dataset_phys(ds)->ds_snapnames_zapobj == 0) |
2e528b49 | 2325 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
2326 | |
2327 | zap_cursor_init_serialized(&cursor, | |
2328 | ds->ds_dir->dd_pool->dp_meta_objset, | |
d683ddbb | 2329 | dsl_dataset_phys(ds)->ds_snapnames_zapobj, *offp); |
34dc7c2f BB |
2330 | |
2331 | if (zap_cursor_retrieve(&cursor, &attr) != 0) { | |
2332 | zap_cursor_fini(&cursor); | |
2e528b49 | 2333 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
2334 | } |
2335 | ||
2336 | if (strlen(attr.za_name) + 1 > namelen) { | |
2337 | zap_cursor_fini(&cursor); | |
2e528b49 | 2338 | return (SET_ERROR(ENAMETOOLONG)); |
34dc7c2f BB |
2339 | } |
2340 | ||
2341 | (void) strcpy(name, attr.za_name); | |
2342 | if (idp) | |
2343 | *idp = attr.za_first_integer; | |
2344 | if (case_conflict) | |
2345 | *case_conflict = attr.za_normalization_conflict; | |
2346 | zap_cursor_advance(&cursor); | |
2347 | *offp = zap_cursor_serialize(&cursor); | |
2348 | zap_cursor_fini(&cursor); | |
2349 | ||
2350 | return (0); | |
2351 | } | |
2352 | ||
ebe7e575 | 2353 | int |
6772fb67 | 2354 | dmu_snapshot_lookup(objset_t *os, const char *name, uint64_t *value) |
ebe7e575 | 2355 | { |
d1d7e268 | 2356 | return (dsl_dataset_snap_lookup(os->os_dsl_dataset, name, value)); |
ebe7e575 BB |
2357 | } |
2358 | ||
34dc7c2f BB |
2359 | int |
2360 | dmu_dir_list_next(objset_t *os, int namelen, char *name, | |
2361 | uint64_t *idp, uint64_t *offp) | |
2362 | { | |
428870ff | 2363 | dsl_dir_t *dd = os->os_dsl_dataset->ds_dir; |
34dc7c2f BB |
2364 | zap_cursor_t cursor; |
2365 | zap_attribute_t attr; | |
2366 | ||
2367 | /* there is no next dir on a snapshot! */ | |
428870ff | 2368 | if (os->os_dsl_dataset->ds_object != |
d683ddbb | 2369 | dsl_dir_phys(dd)->dd_head_dataset_obj) |
2e528b49 | 2370 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
2371 | |
2372 | zap_cursor_init_serialized(&cursor, | |
2373 | dd->dd_pool->dp_meta_objset, | |
d683ddbb | 2374 | dsl_dir_phys(dd)->dd_child_dir_zapobj, *offp); |
34dc7c2f BB |
2375 | |
2376 | if (zap_cursor_retrieve(&cursor, &attr) != 0) { | |
2377 | zap_cursor_fini(&cursor); | |
2e528b49 | 2378 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
2379 | } |
2380 | ||
2381 | if (strlen(attr.za_name) + 1 > namelen) { | |
2382 | zap_cursor_fini(&cursor); | |
2e528b49 | 2383 | return (SET_ERROR(ENAMETOOLONG)); |
34dc7c2f BB |
2384 | } |
2385 | ||
2386 | (void) strcpy(name, attr.za_name); | |
2387 | if (idp) | |
2388 | *idp = attr.za_first_integer; | |
2389 | zap_cursor_advance(&cursor); | |
2390 | *offp = zap_cursor_serialize(&cursor); | |
2391 | zap_cursor_fini(&cursor); | |
2392 | ||
2393 | return (0); | |
2394 | } | |
2395 | ||
9c43027b AJ |
2396 | typedef struct dmu_objset_find_ctx { |
2397 | taskq_t *dc_tq; | |
2398 | dsl_pool_t *dc_dp; | |
2399 | uint64_t dc_ddobj; | |
1149ba64 | 2400 | char *dc_ddname; /* last component of ddobj's name */ |
9c43027b AJ |
2401 | int (*dc_func)(dsl_pool_t *, dsl_dataset_t *, void *); |
2402 | void *dc_arg; | |
2403 | int dc_flags; | |
2404 | kmutex_t *dc_error_lock; | |
2405 | int *dc_error; | |
2406 | } dmu_objset_find_ctx_t; | |
2407 | ||
2408 | static void | |
2409 | dmu_objset_find_dp_impl(dmu_objset_find_ctx_t *dcp) | |
b128c09f | 2410 | { |
9c43027b | 2411 | dsl_pool_t *dp = dcp->dc_dp; |
13fe0198 MA |
2412 | dsl_dir_t *dd; |
2413 | dsl_dataset_t *ds; | |
2414 | zap_cursor_t zc; | |
2415 | zap_attribute_t *attr; | |
2416 | uint64_t thisobj; | |
9c43027b | 2417 | int err = 0; |
13fe0198 | 2418 | |
9c43027b AJ |
2419 | /* don't process if there already was an error */ |
2420 | if (*dcp->dc_error != 0) | |
2421 | goto out; | |
13fe0198 | 2422 | |
1149ba64 GM |
2423 | /* |
2424 | * Note: passing the name (dc_ddname) here is optional, but it | |
2425 | * improves performance because we don't need to call | |
2426 | * zap_value_search() to determine the name. | |
2427 | */ | |
2428 | err = dsl_dir_hold_obj(dp, dcp->dc_ddobj, dcp->dc_ddname, FTAG, &dd); | |
13fe0198 | 2429 | if (err != 0) |
9c43027b | 2430 | goto out; |
13fe0198 MA |
2431 | |
2432 | /* Don't visit hidden ($MOS & $ORIGIN) objsets. */ | |
2433 | if (dd->dd_myname[0] == '$') { | |
2434 | dsl_dir_rele(dd, FTAG); | |
9c43027b | 2435 | goto out; |
13fe0198 MA |
2436 | } |
2437 | ||
d683ddbb | 2438 | thisobj = dsl_dir_phys(dd)->dd_head_dataset_obj; |
79c76d5b | 2439 | attr = kmem_alloc(sizeof (zap_attribute_t), KM_SLEEP); |
13fe0198 MA |
2440 | |
2441 | /* | |
2442 | * Iterate over all children. | |
2443 | */ | |
9c43027b | 2444 | if (dcp->dc_flags & DS_FIND_CHILDREN) { |
13fe0198 | 2445 | for (zap_cursor_init(&zc, dp->dp_meta_objset, |
d683ddbb | 2446 | dsl_dir_phys(dd)->dd_child_dir_zapobj); |
13fe0198 MA |
2447 | zap_cursor_retrieve(&zc, attr) == 0; |
2448 | (void) zap_cursor_advance(&zc)) { | |
2449 | ASSERT3U(attr->za_integer_length, ==, | |
2450 | sizeof (uint64_t)); | |
2451 | ASSERT3U(attr->za_num_integers, ==, 1); | |
2452 | ||
1c27024e | 2453 | dmu_objset_find_ctx_t *child_dcp = |
1149ba64 | 2454 | kmem_alloc(sizeof (*child_dcp), KM_SLEEP); |
9c43027b AJ |
2455 | *child_dcp = *dcp; |
2456 | child_dcp->dc_ddobj = attr->za_first_integer; | |
1149ba64 | 2457 | child_dcp->dc_ddname = spa_strdup(attr->za_name); |
9c43027b AJ |
2458 | if (dcp->dc_tq != NULL) |
2459 | (void) taskq_dispatch(dcp->dc_tq, | |
2460 | dmu_objset_find_dp_cb, child_dcp, TQ_SLEEP); | |
2461 | else | |
2462 | dmu_objset_find_dp_impl(child_dcp); | |
13fe0198 MA |
2463 | } |
2464 | zap_cursor_fini(&zc); | |
13fe0198 MA |
2465 | } |
2466 | ||
2467 | /* | |
2468 | * Iterate over all snapshots. | |
2469 | */ | |
9c43027b | 2470 | if (dcp->dc_flags & DS_FIND_SNAPSHOTS) { |
13fe0198 MA |
2471 | dsl_dataset_t *ds; |
2472 | err = dsl_dataset_hold_obj(dp, thisobj, FTAG, &ds); | |
2473 | ||
2474 | if (err == 0) { | |
d683ddbb JG |
2475 | uint64_t snapobj; |
2476 | ||
2477 | snapobj = dsl_dataset_phys(ds)->ds_snapnames_zapobj; | |
13fe0198 MA |
2478 | dsl_dataset_rele(ds, FTAG); |
2479 | ||
2480 | for (zap_cursor_init(&zc, dp->dp_meta_objset, snapobj); | |
2481 | zap_cursor_retrieve(&zc, attr) == 0; | |
2482 | (void) zap_cursor_advance(&zc)) { | |
2483 | ASSERT3U(attr->za_integer_length, ==, | |
2484 | sizeof (uint64_t)); | |
2485 | ASSERT3U(attr->za_num_integers, ==, 1); | |
2486 | ||
2487 | err = dsl_dataset_hold_obj(dp, | |
2488 | attr->za_first_integer, FTAG, &ds); | |
2489 | if (err != 0) | |
2490 | break; | |
9c43027b | 2491 | err = dcp->dc_func(dp, ds, dcp->dc_arg); |
13fe0198 MA |
2492 | dsl_dataset_rele(ds, FTAG); |
2493 | if (err != 0) | |
2494 | break; | |
2495 | } | |
2496 | zap_cursor_fini(&zc); | |
2497 | } | |
2498 | } | |
2499 | ||
13fe0198 MA |
2500 | kmem_free(attr, sizeof (zap_attribute_t)); |
2501 | ||
1149ba64 GM |
2502 | if (err != 0) { |
2503 | dsl_dir_rele(dd, FTAG); | |
9c43027b | 2504 | goto out; |
1149ba64 | 2505 | } |
13fe0198 MA |
2506 | |
2507 | /* | |
2508 | * Apply to self. | |
2509 | */ | |
2510 | err = dsl_dataset_hold_obj(dp, thisobj, FTAG, &ds); | |
1149ba64 GM |
2511 | |
2512 | /* | |
2513 | * Note: we hold the dir while calling dsl_dataset_hold_obj() so | |
2514 | * that the dir will remain cached, and we won't have to re-instantiate | |
2515 | * it (which could be expensive due to finding its name via | |
2516 | * zap_value_search()). | |
2517 | */ | |
2518 | dsl_dir_rele(dd, FTAG); | |
13fe0198 | 2519 | if (err != 0) |
9c43027b AJ |
2520 | goto out; |
2521 | err = dcp->dc_func(dp, ds, dcp->dc_arg); | |
13fe0198 | 2522 | dsl_dataset_rele(ds, FTAG); |
9c43027b AJ |
2523 | |
2524 | out: | |
2525 | if (err != 0) { | |
2526 | mutex_enter(dcp->dc_error_lock); | |
2527 | /* only keep first error */ | |
2528 | if (*dcp->dc_error == 0) | |
2529 | *dcp->dc_error = err; | |
2530 | mutex_exit(dcp->dc_error_lock); | |
2531 | } | |
2532 | ||
1149ba64 GM |
2533 | if (dcp->dc_ddname != NULL) |
2534 | spa_strfree(dcp->dc_ddname); | |
9c43027b AJ |
2535 | kmem_free(dcp, sizeof (*dcp)); |
2536 | } | |
2537 | ||
2538 | static void | |
2539 | dmu_objset_find_dp_cb(void *arg) | |
2540 | { | |
2541 | dmu_objset_find_ctx_t *dcp = arg; | |
2542 | dsl_pool_t *dp = dcp->dc_dp; | |
2543 | ||
5e8cd5d1 AJ |
2544 | /* |
2545 | * We need to get a pool_config_lock here, as there are several | |
2546 | * asssert(pool_config_held) down the stack. Getting a lock via | |
2547 | * dsl_pool_config_enter is risky, as it might be stalled by a | |
2548 | * pending writer. This would deadlock, as the write lock can | |
2549 | * only be granted when our parent thread gives up the lock. | |
2550 | * The _prio interface gives us priority over a pending writer. | |
2551 | */ | |
2552 | dsl_pool_config_enter_prio(dp, FTAG); | |
9c43027b AJ |
2553 | |
2554 | dmu_objset_find_dp_impl(dcp); | |
2555 | ||
2556 | dsl_pool_config_exit(dp, FTAG); | |
2557 | } | |
2558 | ||
2559 | /* | |
2560 | * Find objsets under and including ddobj, call func(ds) on each. | |
2561 | * The order for the enumeration is completely undefined. | |
2562 | * func is called with dsl_pool_config held. | |
2563 | */ | |
2564 | int | |
2565 | dmu_objset_find_dp(dsl_pool_t *dp, uint64_t ddobj, | |
2566 | int func(dsl_pool_t *, dsl_dataset_t *, void *), void *arg, int flags) | |
2567 | { | |
2568 | int error = 0; | |
2569 | taskq_t *tq = NULL; | |
2570 | int ntasks; | |
2571 | dmu_objset_find_ctx_t *dcp; | |
2572 | kmutex_t err_lock; | |
2573 | ||
2574 | mutex_init(&err_lock, NULL, MUTEX_DEFAULT, NULL); | |
2575 | dcp = kmem_alloc(sizeof (*dcp), KM_SLEEP); | |
2576 | dcp->dc_tq = NULL; | |
2577 | dcp->dc_dp = dp; | |
2578 | dcp->dc_ddobj = ddobj; | |
1149ba64 | 2579 | dcp->dc_ddname = NULL; |
9c43027b AJ |
2580 | dcp->dc_func = func; |
2581 | dcp->dc_arg = arg; | |
2582 | dcp->dc_flags = flags; | |
2583 | dcp->dc_error_lock = &err_lock; | |
2584 | dcp->dc_error = &error; | |
2585 | ||
2586 | if ((flags & DS_FIND_SERIALIZE) || dsl_pool_config_held_writer(dp)) { | |
2587 | /* | |
2588 | * In case a write lock is held we can't make use of | |
2589 | * parallelism, as down the stack of the worker threads | |
2590 | * the lock is asserted via dsl_pool_config_held. | |
2591 | * In case of a read lock this is solved by getting a read | |
2592 | * lock in each worker thread, which isn't possible in case | |
2593 | * of a writer lock. So we fall back to the synchronous path | |
2594 | * here. | |
2595 | * In the future it might be possible to get some magic into | |
2596 | * dsl_pool_config_held in a way that it returns true for | |
2597 | * the worker threads so that a single lock held from this | |
2598 | * thread suffices. For now, stay single threaded. | |
2599 | */ | |
2600 | dmu_objset_find_dp_impl(dcp); | |
e5676636 | 2601 | mutex_destroy(&err_lock); |
9c43027b AJ |
2602 | |
2603 | return (error); | |
2604 | } | |
2605 | ||
2606 | ntasks = dmu_find_threads; | |
2607 | if (ntasks == 0) | |
2608 | ntasks = vdev_count_leaves(dp->dp_spa) * 4; | |
1229323d | 2609 | tq = taskq_create("dmu_objset_find", ntasks, maxclsyspri, ntasks, |
9c43027b AJ |
2610 | INT_MAX, 0); |
2611 | if (tq == NULL) { | |
2612 | kmem_free(dcp, sizeof (*dcp)); | |
e5676636 BB |
2613 | mutex_destroy(&err_lock); |
2614 | ||
9c43027b AJ |
2615 | return (SET_ERROR(ENOMEM)); |
2616 | } | |
2617 | dcp->dc_tq = tq; | |
2618 | ||
2619 | /* dcp will be freed by task */ | |
2620 | (void) taskq_dispatch(tq, dmu_objset_find_dp_cb, dcp, TQ_SLEEP); | |
2621 | ||
2622 | /* | |
2623 | * PORTING: this code relies on the property of taskq_wait to wait | |
2624 | * until no more tasks are queued and no more tasks are active. As | |
2625 | * we always queue new tasks from within other tasks, task_wait | |
2626 | * reliably waits for the full recursion to finish, even though we | |
2627 | * enqueue new tasks after taskq_wait has been called. | |
2628 | * On platforms other than illumos, taskq_wait may not have this | |
2629 | * property. | |
2630 | */ | |
2631 | taskq_wait(tq); | |
2632 | taskq_destroy(tq); | |
2633 | mutex_destroy(&err_lock); | |
2634 | ||
2635 | return (error); | |
b128c09f BB |
2636 | } |
2637 | ||
2638 | /* | |
13fe0198 MA |
2639 | * Find all objsets under name, and for each, call 'func(child_name, arg)'. |
2640 | * The dp_config_rwlock must not be held when this is called, and it | |
2641 | * will not be held when the callback is called. | |
2642 | * Therefore this function should only be used when the pool is not changing | |
2643 | * (e.g. in syncing context), or the callback can deal with the possible races. | |
b128c09f | 2644 | */ |
13fe0198 MA |
2645 | static int |
2646 | dmu_objset_find_impl(spa_t *spa, const char *name, | |
2647 | int func(const char *, void *), void *arg, int flags) | |
34dc7c2f BB |
2648 | { |
2649 | dsl_dir_t *dd; | |
13fe0198 | 2650 | dsl_pool_t *dp = spa_get_dsl(spa); |
b128c09f | 2651 | dsl_dataset_t *ds; |
34dc7c2f BB |
2652 | zap_cursor_t zc; |
2653 | zap_attribute_t *attr; | |
2654 | char *child; | |
b128c09f BB |
2655 | uint64_t thisobj; |
2656 | int err; | |
34dc7c2f | 2657 | |
13fe0198 MA |
2658 | dsl_pool_config_enter(dp, FTAG); |
2659 | ||
2660 | err = dsl_dir_hold(dp, name, FTAG, &dd, NULL); | |
2661 | if (err != 0) { | |
2662 | dsl_pool_config_exit(dp, FTAG); | |
34dc7c2f | 2663 | return (err); |
13fe0198 | 2664 | } |
34dc7c2f | 2665 | |
b128c09f BB |
2666 | /* Don't visit hidden ($MOS & $ORIGIN) objsets. */ |
2667 | if (dd->dd_myname[0] == '$') { | |
13fe0198 MA |
2668 | dsl_dir_rele(dd, FTAG); |
2669 | dsl_pool_config_exit(dp, FTAG); | |
b128c09f BB |
2670 | return (0); |
2671 | } | |
2672 | ||
d683ddbb | 2673 | thisobj = dsl_dir_phys(dd)->dd_head_dataset_obj; |
79c76d5b | 2674 | attr = kmem_alloc(sizeof (zap_attribute_t), KM_SLEEP); |
34dc7c2f BB |
2675 | |
2676 | /* | |
2677 | * Iterate over all children. | |
2678 | */ | |
2679 | if (flags & DS_FIND_CHILDREN) { | |
b128c09f | 2680 | for (zap_cursor_init(&zc, dp->dp_meta_objset, |
d683ddbb | 2681 | dsl_dir_phys(dd)->dd_child_dir_zapobj); |
34dc7c2f BB |
2682 | zap_cursor_retrieve(&zc, attr) == 0; |
2683 | (void) zap_cursor_advance(&zc)) { | |
13fe0198 MA |
2684 | ASSERT3U(attr->za_integer_length, ==, |
2685 | sizeof (uint64_t)); | |
2686 | ASSERT3U(attr->za_num_integers, ==, 1); | |
34dc7c2f | 2687 | |
428870ff | 2688 | child = kmem_asprintf("%s/%s", name, attr->za_name); |
13fe0198 MA |
2689 | dsl_pool_config_exit(dp, FTAG); |
2690 | err = dmu_objset_find_impl(spa, child, | |
2691 | func, arg, flags); | |
2692 | dsl_pool_config_enter(dp, FTAG); | |
428870ff | 2693 | strfree(child); |
13fe0198 | 2694 | if (err != 0) |
34dc7c2f BB |
2695 | break; |
2696 | } | |
2697 | zap_cursor_fini(&zc); | |
2698 | ||
13fe0198 MA |
2699 | if (err != 0) { |
2700 | dsl_dir_rele(dd, FTAG); | |
2701 | dsl_pool_config_exit(dp, FTAG); | |
34dc7c2f BB |
2702 | kmem_free(attr, sizeof (zap_attribute_t)); |
2703 | return (err); | |
2704 | } | |
2705 | } | |
2706 | ||
2707 | /* | |
2708 | * Iterate over all snapshots. | |
2709 | */ | |
b128c09f | 2710 | if (flags & DS_FIND_SNAPSHOTS) { |
b128c09f | 2711 | err = dsl_dataset_hold_obj(dp, thisobj, FTAG, &ds); |
b128c09f BB |
2712 | |
2713 | if (err == 0) { | |
d683ddbb JG |
2714 | uint64_t snapobj; |
2715 | ||
2716 | snapobj = dsl_dataset_phys(ds)->ds_snapnames_zapobj; | |
b128c09f BB |
2717 | dsl_dataset_rele(ds, FTAG); |
2718 | ||
2719 | for (zap_cursor_init(&zc, dp->dp_meta_objset, snapobj); | |
2720 | zap_cursor_retrieve(&zc, attr) == 0; | |
2721 | (void) zap_cursor_advance(&zc)) { | |
13fe0198 | 2722 | ASSERT3U(attr->za_integer_length, ==, |
b128c09f | 2723 | sizeof (uint64_t)); |
13fe0198 | 2724 | ASSERT3U(attr->za_num_integers, ==, 1); |
b128c09f | 2725 | |
428870ff BB |
2726 | child = kmem_asprintf("%s@%s", |
2727 | name, attr->za_name); | |
13fe0198 MA |
2728 | dsl_pool_config_exit(dp, FTAG); |
2729 | err = func(child, arg); | |
2730 | dsl_pool_config_enter(dp, FTAG); | |
428870ff | 2731 | strfree(child); |
13fe0198 | 2732 | if (err != 0) |
b128c09f BB |
2733 | break; |
2734 | } | |
2735 | zap_cursor_fini(&zc); | |
34dc7c2f | 2736 | } |
34dc7c2f BB |
2737 | } |
2738 | ||
13fe0198 | 2739 | dsl_dir_rele(dd, FTAG); |
34dc7c2f | 2740 | kmem_free(attr, sizeof (zap_attribute_t)); |
13fe0198 | 2741 | dsl_pool_config_exit(dp, FTAG); |
34dc7c2f | 2742 | |
13fe0198 | 2743 | if (err != 0) |
34dc7c2f BB |
2744 | return (err); |
2745 | ||
13fe0198 MA |
2746 | /* Apply to self. */ |
2747 | return (func(name, arg)); | |
34dc7c2f BB |
2748 | } |
2749 | ||
13fe0198 MA |
2750 | /* |
2751 | * See comment above dmu_objset_find_impl(). | |
2752 | */ | |
d164b209 | 2753 | int |
13fe0198 MA |
2754 | dmu_objset_find(char *name, int func(const char *, void *), void *arg, |
2755 | int flags) | |
d164b209 | 2756 | { |
13fe0198 MA |
2757 | spa_t *spa; |
2758 | int error; | |
d164b209 | 2759 | |
13fe0198 MA |
2760 | error = spa_open(name, &spa, FTAG); |
2761 | if (error != 0) | |
2762 | return (error); | |
2763 | error = dmu_objset_find_impl(spa, name, func, arg, flags); | |
2764 | spa_close(spa, FTAG); | |
2765 | return (error); | |
d164b209 BB |
2766 | } |
2767 | ||
ae76f45c TC |
2768 | boolean_t |
2769 | dmu_objset_incompatible_encryption_version(objset_t *os) | |
2770 | { | |
2771 | return (dsl_dir_incompatible_encryption_version( | |
2772 | os->os_dsl_dataset->ds_dir)); | |
2773 | } | |
2774 | ||
34dc7c2f BB |
2775 | void |
2776 | dmu_objset_set_user(objset_t *os, void *user_ptr) | |
2777 | { | |
428870ff BB |
2778 | ASSERT(MUTEX_HELD(&os->os_user_ptr_lock)); |
2779 | os->os_user_ptr = user_ptr; | |
34dc7c2f BB |
2780 | } |
2781 | ||
2782 | void * | |
2783 | dmu_objset_get_user(objset_t *os) | |
2784 | { | |
428870ff BB |
2785 | ASSERT(MUTEX_HELD(&os->os_user_ptr_lock)); |
2786 | return (os->os_user_ptr); | |
34dc7c2f | 2787 | } |
c28b2279 | 2788 | |
13fe0198 MA |
2789 | /* |
2790 | * Determine name of filesystem, given name of snapshot. | |
eca7b760 | 2791 | * buf must be at least ZFS_MAX_DATASET_NAME_LEN bytes |
13fe0198 MA |
2792 | */ |
2793 | int | |
2794 | dmu_fsname(const char *snapname, char *buf) | |
2795 | { | |
2796 | char *atp = strchr(snapname, '@'); | |
2797 | if (atp == NULL) | |
2e528b49 | 2798 | return (SET_ERROR(EINVAL)); |
eca7b760 | 2799 | if (atp - snapname >= ZFS_MAX_DATASET_NAME_LEN) |
2e528b49 | 2800 | return (SET_ERROR(ENAMETOOLONG)); |
13fe0198 MA |
2801 | (void) strlcpy(buf, snapname, atp - snapname + 1); |
2802 | return (0); | |
2803 | } | |
2804 | ||
3ec3bc21 BB |
2805 | /* |
2806 | * Call when we think we're going to write/free space in open context to track | |
2807 | * the amount of dirty data in the open txg, which is also the amount | |
2808 | * of memory that can not be evicted until this txg syncs. | |
2809 | */ | |
2810 | void | |
2811 | dmu_objset_willuse_space(objset_t *os, int64_t space, dmu_tx_t *tx) | |
2812 | { | |
2813 | dsl_dataset_t *ds = os->os_dsl_dataset; | |
2814 | int64_t aspace = spa_get_worst_case_asize(os->os_spa, space); | |
2815 | ||
2816 | if (ds != NULL) { | |
2817 | dsl_dir_willuse_space(ds->ds_dir, aspace, tx); | |
2818 | dsl_pool_dirty_space(dmu_tx_pool(tx), space, tx); | |
2819 | } | |
2820 | } | |
2821 | ||
c28b2279 | 2822 | #if defined(_KERNEL) && defined(HAVE_SPL) |
f0fd83be | 2823 | EXPORT_SYMBOL(dmu_objset_zil); |
c28b2279 | 2824 | EXPORT_SYMBOL(dmu_objset_pool); |
f0fd83be BB |
2825 | EXPORT_SYMBOL(dmu_objset_ds); |
2826 | EXPORT_SYMBOL(dmu_objset_type); | |
c28b2279 BB |
2827 | EXPORT_SYMBOL(dmu_objset_name); |
2828 | EXPORT_SYMBOL(dmu_objset_hold); | |
b5256303 | 2829 | EXPORT_SYMBOL(dmu_objset_hold_flags); |
c28b2279 BB |
2830 | EXPORT_SYMBOL(dmu_objset_own); |
2831 | EXPORT_SYMBOL(dmu_objset_rele); | |
b5256303 | 2832 | EXPORT_SYMBOL(dmu_objset_rele_flags); |
c28b2279 BB |
2833 | EXPORT_SYMBOL(dmu_objset_disown); |
2834 | EXPORT_SYMBOL(dmu_objset_from_ds); | |
2835 | EXPORT_SYMBOL(dmu_objset_create); | |
2836 | EXPORT_SYMBOL(dmu_objset_clone); | |
c28b2279 BB |
2837 | EXPORT_SYMBOL(dmu_objset_stats); |
2838 | EXPORT_SYMBOL(dmu_objset_fast_stat); | |
54a179e7 | 2839 | EXPORT_SYMBOL(dmu_objset_spa); |
c28b2279 BB |
2840 | EXPORT_SYMBOL(dmu_objset_space); |
2841 | EXPORT_SYMBOL(dmu_objset_fsid_guid); | |
2842 | EXPORT_SYMBOL(dmu_objset_find); | |
c28b2279 BB |
2843 | EXPORT_SYMBOL(dmu_objset_byteswap); |
2844 | EXPORT_SYMBOL(dmu_objset_evict_dbufs); | |
2845 | EXPORT_SYMBOL(dmu_objset_snap_cmtime); | |
50c957f7 | 2846 | EXPORT_SYMBOL(dmu_objset_dnodesize); |
c28b2279 BB |
2847 | |
2848 | EXPORT_SYMBOL(dmu_objset_sync); | |
2849 | EXPORT_SYMBOL(dmu_objset_is_dirty); | |
b5256303 | 2850 | EXPORT_SYMBOL(dmu_objset_create_impl_dnstats); |
c28b2279 BB |
2851 | EXPORT_SYMBOL(dmu_objset_create_impl); |
2852 | EXPORT_SYMBOL(dmu_objset_open_impl); | |
2853 | EXPORT_SYMBOL(dmu_objset_evict); | |
2854 | EXPORT_SYMBOL(dmu_objset_register_type); | |
2855 | EXPORT_SYMBOL(dmu_objset_do_userquota_updates); | |
2856 | EXPORT_SYMBOL(dmu_objset_userquota_get_ids); | |
2857 | EXPORT_SYMBOL(dmu_objset_userused_enabled); | |
2858 | EXPORT_SYMBOL(dmu_objset_userspace_upgrade); | |
2859 | EXPORT_SYMBOL(dmu_objset_userspace_present); | |
1de321e6 | 2860 | EXPORT_SYMBOL(dmu_objset_userobjused_enabled); |
126ae9f4 | 2861 | EXPORT_SYMBOL(dmu_objset_userobjspace_upgradable); |
1de321e6 | 2862 | EXPORT_SYMBOL(dmu_objset_userobjspace_present); |
9c5167d1 NF |
2863 | EXPORT_SYMBOL(dmu_objset_projectquota_enabled); |
2864 | EXPORT_SYMBOL(dmu_objset_projectquota_present); | |
2865 | EXPORT_SYMBOL(dmu_objset_projectquota_upgradable); | |
2866 | EXPORT_SYMBOL(dmu_objset_id_quota_upgrade); | |
c28b2279 | 2867 | #endif |