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Commit | Line | Data |
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34dc7c2f BB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | /* | |
428870ff | 22 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
bc77ba73 | 23 | * Copyright (c) 2012, 2016 by Delphix. All rights reserved. |
3a17a7a9 | 24 | * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. |
788eb90c | 25 | * Copyright (c) 2013, Joyent, Inc. All rights reserved. |
0c66c32d | 26 | * Copyright (c) 2014 Spectra Logic Corporation, All rights reserved. |
1cddb8c9 | 27 | * Copyright (c) 2015 Nexenta Systems, Inc. All rights reserved. |
9c43027b | 28 | * Copyright (c) 2015, STRATO AG, Inc. All rights reserved. |
a0bd735a | 29 | * Copyright (c) 2016 Actifio, Inc. All rights reserved. |
34dc7c2f BB |
30 | */ |
31 | ||
428870ff BB |
32 | /* Portions Copyright 2010 Robert Milkowski */ |
33 | ||
1de321e6 | 34 | #include <sys/zfeature.h> |
34dc7c2f BB |
35 | #include <sys/cred.h> |
36 | #include <sys/zfs_context.h> | |
37 | #include <sys/dmu_objset.h> | |
38 | #include <sys/dsl_dir.h> | |
39 | #include <sys/dsl_dataset.h> | |
40 | #include <sys/dsl_prop.h> | |
41 | #include <sys/dsl_pool.h> | |
42 | #include <sys/dsl_synctask.h> | |
43 | #include <sys/dsl_deleg.h> | |
44 | #include <sys/dnode.h> | |
45 | #include <sys/dbuf.h> | |
46 | #include <sys/zvol.h> | |
47 | #include <sys/dmu_tx.h> | |
34dc7c2f BB |
48 | #include <sys/zap.h> |
49 | #include <sys/zil.h> | |
50 | #include <sys/dmu_impl.h> | |
51 | #include <sys/zfs_ioctl.h> | |
428870ff | 52 | #include <sys/sa.h> |
572e2857 | 53 | #include <sys/zfs_onexit.h> |
13fe0198 | 54 | #include <sys/dsl_destroy.h> |
9c43027b | 55 | #include <sys/vdev.h> |
f74b821a | 56 | #include <sys/policy.h> |
1de321e6 | 57 | #include <sys/spa_impl.h> |
572e2857 BB |
58 | |
59 | /* | |
60 | * Needed to close a window in dnode_move() that allows the objset to be freed | |
61 | * before it can be safely accessed. | |
62 | */ | |
63 | krwlock_t os_lock; | |
64 | ||
9c43027b AJ |
65 | /* |
66 | * Tunable to overwrite the maximum number of threads for the parallization | |
67 | * of dmu_objset_find_dp, needed to speed up the import of pools with many | |
68 | * datasets. | |
69 | * Default is 4 times the number of leaf vdevs. | |
70 | */ | |
71 | int dmu_find_threads = 0; | |
72 | ||
68cbd56e NB |
73 | /* |
74 | * Backfill lower metadnode objects after this many have been freed. | |
75 | * Backfilling negatively impacts object creation rates, so only do it | |
76 | * if there are enough holes to fill. | |
77 | */ | |
78 | int dmu_rescan_dnode_threshold = 1 << DN_MAX_INDBLKSHIFT; | |
79 | ||
9c43027b AJ |
80 | static void dmu_objset_find_dp_cb(void *arg); |
81 | ||
1de321e6 JX |
82 | static void dmu_objset_upgrade(objset_t *os, dmu_objset_upgrade_cb_t cb); |
83 | static void dmu_objset_upgrade_stop(objset_t *os); | |
84 | ||
572e2857 BB |
85 | void |
86 | dmu_objset_init(void) | |
87 | { | |
88 | rw_init(&os_lock, NULL, RW_DEFAULT, NULL); | |
89 | } | |
90 | ||
91 | void | |
92 | dmu_objset_fini(void) | |
93 | { | |
94 | rw_destroy(&os_lock); | |
95 | } | |
34dc7c2f BB |
96 | |
97 | spa_t * | |
98 | dmu_objset_spa(objset_t *os) | |
99 | { | |
428870ff | 100 | return (os->os_spa); |
34dc7c2f BB |
101 | } |
102 | ||
103 | zilog_t * | |
104 | dmu_objset_zil(objset_t *os) | |
105 | { | |
428870ff | 106 | return (os->os_zil); |
34dc7c2f BB |
107 | } |
108 | ||
109 | dsl_pool_t * | |
110 | dmu_objset_pool(objset_t *os) | |
111 | { | |
112 | dsl_dataset_t *ds; | |
113 | ||
428870ff | 114 | if ((ds = os->os_dsl_dataset) != NULL && ds->ds_dir) |
34dc7c2f BB |
115 | return (ds->ds_dir->dd_pool); |
116 | else | |
428870ff | 117 | return (spa_get_dsl(os->os_spa)); |
34dc7c2f BB |
118 | } |
119 | ||
120 | dsl_dataset_t * | |
121 | dmu_objset_ds(objset_t *os) | |
122 | { | |
428870ff | 123 | return (os->os_dsl_dataset); |
34dc7c2f BB |
124 | } |
125 | ||
126 | dmu_objset_type_t | |
127 | dmu_objset_type(objset_t *os) | |
128 | { | |
428870ff | 129 | return (os->os_phys->os_type); |
34dc7c2f BB |
130 | } |
131 | ||
132 | void | |
133 | dmu_objset_name(objset_t *os, char *buf) | |
134 | { | |
428870ff | 135 | dsl_dataset_name(os->os_dsl_dataset, buf); |
34dc7c2f BB |
136 | } |
137 | ||
138 | uint64_t | |
139 | dmu_objset_id(objset_t *os) | |
140 | { | |
428870ff | 141 | dsl_dataset_t *ds = os->os_dsl_dataset; |
34dc7c2f BB |
142 | |
143 | return (ds ? ds->ds_object : 0); | |
144 | } | |
145 | ||
50c957f7 NB |
146 | uint64_t |
147 | dmu_objset_dnodesize(objset_t *os) | |
148 | { | |
149 | return (os->os_dnodesize); | |
150 | } | |
151 | ||
faf0f58c | 152 | zfs_sync_type_t |
428870ff BB |
153 | dmu_objset_syncprop(objset_t *os) |
154 | { | |
155 | return (os->os_sync); | |
156 | } | |
157 | ||
faf0f58c | 158 | zfs_logbias_op_t |
428870ff BB |
159 | dmu_objset_logbias(objset_t *os) |
160 | { | |
161 | return (os->os_logbias); | |
162 | } | |
163 | ||
34dc7c2f BB |
164 | static void |
165 | checksum_changed_cb(void *arg, uint64_t newval) | |
166 | { | |
428870ff | 167 | objset_t *os = arg; |
34dc7c2f BB |
168 | |
169 | /* | |
170 | * Inheritance should have been done by now. | |
171 | */ | |
172 | ASSERT(newval != ZIO_CHECKSUM_INHERIT); | |
173 | ||
428870ff | 174 | os->os_checksum = zio_checksum_select(newval, ZIO_CHECKSUM_ON_VALUE); |
34dc7c2f BB |
175 | } |
176 | ||
177 | static void | |
178 | compression_changed_cb(void *arg, uint64_t newval) | |
179 | { | |
428870ff | 180 | objset_t *os = arg; |
34dc7c2f BB |
181 | |
182 | /* | |
183 | * Inheritance and range checking should have been done by now. | |
184 | */ | |
185 | ASSERT(newval != ZIO_COMPRESS_INHERIT); | |
186 | ||
99197f03 JG |
187 | os->os_compress = zio_compress_select(os->os_spa, newval, |
188 | ZIO_COMPRESS_ON); | |
34dc7c2f BB |
189 | } |
190 | ||
191 | static void | |
192 | copies_changed_cb(void *arg, uint64_t newval) | |
193 | { | |
428870ff | 194 | objset_t *os = arg; |
34dc7c2f BB |
195 | |
196 | /* | |
197 | * Inheritance and range checking should have been done by now. | |
198 | */ | |
199 | ASSERT(newval > 0); | |
428870ff | 200 | ASSERT(newval <= spa_max_replication(os->os_spa)); |
34dc7c2f | 201 | |
428870ff BB |
202 | os->os_copies = newval; |
203 | } | |
204 | ||
205 | static void | |
206 | dedup_changed_cb(void *arg, uint64_t newval) | |
207 | { | |
208 | objset_t *os = arg; | |
209 | spa_t *spa = os->os_spa; | |
210 | enum zio_checksum checksum; | |
211 | ||
212 | /* | |
213 | * Inheritance should have been done by now. | |
214 | */ | |
215 | ASSERT(newval != ZIO_CHECKSUM_INHERIT); | |
216 | ||
217 | checksum = zio_checksum_dedup_select(spa, newval, ZIO_CHECKSUM_OFF); | |
218 | ||
219 | os->os_dedup_checksum = checksum & ZIO_CHECKSUM_MASK; | |
220 | os->os_dedup_verify = !!(checksum & ZIO_CHECKSUM_VERIFY); | |
34dc7c2f BB |
221 | } |
222 | ||
b128c09f BB |
223 | static void |
224 | primary_cache_changed_cb(void *arg, uint64_t newval) | |
225 | { | |
428870ff | 226 | objset_t *os = arg; |
b128c09f BB |
227 | |
228 | /* | |
229 | * Inheritance and range checking should have been done by now. | |
230 | */ | |
231 | ASSERT(newval == ZFS_CACHE_ALL || newval == ZFS_CACHE_NONE || | |
232 | newval == ZFS_CACHE_METADATA); | |
233 | ||
428870ff | 234 | os->os_primary_cache = newval; |
b128c09f BB |
235 | } |
236 | ||
237 | static void | |
238 | secondary_cache_changed_cb(void *arg, uint64_t newval) | |
239 | { | |
428870ff | 240 | objset_t *os = arg; |
b128c09f BB |
241 | |
242 | /* | |
243 | * Inheritance and range checking should have been done by now. | |
244 | */ | |
245 | ASSERT(newval == ZFS_CACHE_ALL || newval == ZFS_CACHE_NONE || | |
246 | newval == ZFS_CACHE_METADATA); | |
247 | ||
428870ff BB |
248 | os->os_secondary_cache = newval; |
249 | } | |
250 | ||
251 | static void | |
252 | sync_changed_cb(void *arg, uint64_t newval) | |
253 | { | |
254 | objset_t *os = arg; | |
255 | ||
256 | /* | |
257 | * Inheritance and range checking should have been done by now. | |
258 | */ | |
259 | ASSERT(newval == ZFS_SYNC_STANDARD || newval == ZFS_SYNC_ALWAYS || | |
260 | newval == ZFS_SYNC_DISABLED); | |
261 | ||
262 | os->os_sync = newval; | |
263 | if (os->os_zil) | |
264 | zil_set_sync(os->os_zil, newval); | |
265 | } | |
266 | ||
faf0f58c MA |
267 | static void |
268 | redundant_metadata_changed_cb(void *arg, uint64_t newval) | |
269 | { | |
270 | objset_t *os = arg; | |
271 | ||
272 | /* | |
273 | * Inheritance and range checking should have been done by now. | |
274 | */ | |
275 | ASSERT(newval == ZFS_REDUNDANT_METADATA_ALL || | |
276 | newval == ZFS_REDUNDANT_METADATA_MOST); | |
277 | ||
278 | os->os_redundant_metadata = newval; | |
279 | } | |
280 | ||
50c957f7 NB |
281 | static void |
282 | dnodesize_changed_cb(void *arg, uint64_t newval) | |
283 | { | |
284 | objset_t *os = arg; | |
285 | ||
286 | switch (newval) { | |
287 | case ZFS_DNSIZE_LEGACY: | |
288 | os->os_dnodesize = DNODE_MIN_SIZE; | |
289 | break; | |
290 | case ZFS_DNSIZE_AUTO: | |
291 | /* | |
292 | * Choose a dnode size that will work well for most | |
293 | * workloads if the user specified "auto". Future code | |
294 | * improvements could dynamically select a dnode size | |
295 | * based on observed workload patterns. | |
296 | */ | |
297 | os->os_dnodesize = DNODE_MIN_SIZE * 2; | |
298 | break; | |
299 | case ZFS_DNSIZE_1K: | |
300 | case ZFS_DNSIZE_2K: | |
301 | case ZFS_DNSIZE_4K: | |
302 | case ZFS_DNSIZE_8K: | |
303 | case ZFS_DNSIZE_16K: | |
304 | os->os_dnodesize = newval; | |
305 | break; | |
306 | } | |
307 | } | |
308 | ||
428870ff BB |
309 | static void |
310 | logbias_changed_cb(void *arg, uint64_t newval) | |
311 | { | |
312 | objset_t *os = arg; | |
313 | ||
314 | ASSERT(newval == ZFS_LOGBIAS_LATENCY || | |
315 | newval == ZFS_LOGBIAS_THROUGHPUT); | |
316 | os->os_logbias = newval; | |
317 | if (os->os_zil) | |
318 | zil_set_logbias(os->os_zil, newval); | |
b128c09f BB |
319 | } |
320 | ||
f1512ee6 MA |
321 | static void |
322 | recordsize_changed_cb(void *arg, uint64_t newval) | |
323 | { | |
324 | objset_t *os = arg; | |
325 | ||
326 | os->os_recordsize = newval; | |
327 | } | |
328 | ||
34dc7c2f BB |
329 | void |
330 | dmu_objset_byteswap(void *buf, size_t size) | |
331 | { | |
332 | objset_phys_t *osp = buf; | |
333 | ||
9babb374 | 334 | ASSERT(size == OBJSET_OLD_PHYS_SIZE || size == sizeof (objset_phys_t)); |
34dc7c2f BB |
335 | dnode_byteswap(&osp->os_meta_dnode); |
336 | byteswap_uint64_array(&osp->os_zil_header, sizeof (zil_header_t)); | |
337 | osp->os_type = BSWAP_64(osp->os_type); | |
9babb374 BB |
338 | osp->os_flags = BSWAP_64(osp->os_flags); |
339 | if (size == sizeof (objset_phys_t)) { | |
340 | dnode_byteswap(&osp->os_userused_dnode); | |
341 | dnode_byteswap(&osp->os_groupused_dnode); | |
342 | } | |
34dc7c2f BB |
343 | } |
344 | ||
345 | int | |
346 | dmu_objset_open_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp, | |
428870ff | 347 | objset_t **osp) |
34dc7c2f | 348 | { |
428870ff | 349 | objset_t *os; |
b128c09f | 350 | int i, err; |
34dc7c2f BB |
351 | |
352 | ASSERT(ds == NULL || MUTEX_HELD(&ds->ds_opening_lock)); | |
353 | ||
79c76d5b | 354 | os = kmem_zalloc(sizeof (objset_t), KM_SLEEP); |
428870ff BB |
355 | os->os_dsl_dataset = ds; |
356 | os->os_spa = spa; | |
357 | os->os_rootbp = bp; | |
358 | if (!BP_IS_HOLE(os->os_rootbp)) { | |
2a432414 | 359 | arc_flags_t aflags = ARC_FLAG_WAIT; |
5dbd68a3 | 360 | zbookmark_phys_t zb; |
428870ff BB |
361 | SET_BOOKMARK(&zb, ds ? ds->ds_object : DMU_META_OBJSET, |
362 | ZB_ROOT_OBJECT, ZB_ROOT_LEVEL, ZB_ROOT_BLKID); | |
363 | ||
364 | if (DMU_OS_IS_L2CACHEABLE(os)) | |
2a432414 | 365 | aflags |= ARC_FLAG_L2CACHE; |
34dc7c2f | 366 | |
428870ff | 367 | dprintf_bp(os->os_rootbp, "reading %s", ""); |
294f6806 | 368 | err = arc_read(NULL, spa, os->os_rootbp, |
428870ff | 369 | arc_getbuf_func, &os->os_phys_buf, |
34dc7c2f | 370 | ZIO_PRIORITY_SYNC_READ, ZIO_FLAG_CANFAIL, &aflags, &zb); |
13fe0198 | 371 | if (err != 0) { |
428870ff | 372 | kmem_free(os, sizeof (objset_t)); |
b128c09f BB |
373 | /* convert checksum errors into IO errors */ |
374 | if (err == ECKSUM) | |
2e528b49 | 375 | err = SET_ERROR(EIO); |
34dc7c2f BB |
376 | return (err); |
377 | } | |
9babb374 BB |
378 | |
379 | /* Increase the blocksize if we are permitted. */ | |
380 | if (spa_version(spa) >= SPA_VERSION_USERSPACE && | |
428870ff | 381 | arc_buf_size(os->os_phys_buf) < sizeof (objset_phys_t)) { |
2aa34383 DK |
382 | arc_buf_t *buf = arc_alloc_buf(spa, &os->os_phys_buf, |
383 | ARC_BUFC_METADATA, sizeof (objset_phys_t)); | |
9babb374 | 384 | bzero(buf->b_data, sizeof (objset_phys_t)); |
428870ff BB |
385 | bcopy(os->os_phys_buf->b_data, buf->b_data, |
386 | arc_buf_size(os->os_phys_buf)); | |
d3c2ae1c | 387 | arc_buf_destroy(os->os_phys_buf, &os->os_phys_buf); |
428870ff | 388 | os->os_phys_buf = buf; |
9babb374 BB |
389 | } |
390 | ||
428870ff BB |
391 | os->os_phys = os->os_phys_buf->b_data; |
392 | os->os_flags = os->os_phys->os_flags; | |
34dc7c2f | 393 | } else { |
9babb374 BB |
394 | int size = spa_version(spa) >= SPA_VERSION_USERSPACE ? |
395 | sizeof (objset_phys_t) : OBJSET_OLD_PHYS_SIZE; | |
2aa34383 DK |
396 | os->os_phys_buf = arc_alloc_buf(spa, &os->os_phys_buf, |
397 | ARC_BUFC_METADATA, size); | |
428870ff BB |
398 | os->os_phys = os->os_phys_buf->b_data; |
399 | bzero(os->os_phys, size); | |
34dc7c2f BB |
400 | } |
401 | ||
402 | /* | |
403 | * Note: the changed_cb will be called once before the register | |
404 | * func returns, thus changing the checksum/compression from the | |
b128c09f BB |
405 | * default (fletcher2/off). Snapshots don't need to know about |
406 | * checksum/compression/copies. | |
34dc7c2f | 407 | */ |
9b67f605 | 408 | if (ds != NULL) { |
47dfff3b MA |
409 | boolean_t needlock = B_FALSE; |
410 | ||
411 | /* | |
412 | * Note: it's valid to open the objset if the dataset is | |
413 | * long-held, in which case the pool_config lock will not | |
414 | * be held. | |
415 | */ | |
416 | if (!dsl_pool_config_held(dmu_objset_pool(os))) { | |
417 | needlock = B_TRUE; | |
418 | dsl_pool_config_enter(dmu_objset_pool(os), FTAG); | |
419 | } | |
13fe0198 MA |
420 | err = dsl_prop_register(ds, |
421 | zfs_prop_to_name(ZFS_PROP_PRIMARYCACHE), | |
428870ff | 422 | primary_cache_changed_cb, os); |
13fe0198 MA |
423 | if (err == 0) { |
424 | err = dsl_prop_register(ds, | |
425 | zfs_prop_to_name(ZFS_PROP_SECONDARYCACHE), | |
428870ff | 426 | secondary_cache_changed_cb, os); |
13fe0198 | 427 | } |
0c66c32d | 428 | if (!ds->ds_is_snapshot) { |
13fe0198 MA |
429 | if (err == 0) { |
430 | err = dsl_prop_register(ds, | |
431 | zfs_prop_to_name(ZFS_PROP_CHECKSUM), | |
428870ff | 432 | checksum_changed_cb, os); |
13fe0198 MA |
433 | } |
434 | if (err == 0) { | |
435 | err = dsl_prop_register(ds, | |
436 | zfs_prop_to_name(ZFS_PROP_COMPRESSION), | |
428870ff | 437 | compression_changed_cb, os); |
13fe0198 MA |
438 | } |
439 | if (err == 0) { | |
440 | err = dsl_prop_register(ds, | |
441 | zfs_prop_to_name(ZFS_PROP_COPIES), | |
428870ff | 442 | copies_changed_cb, os); |
13fe0198 MA |
443 | } |
444 | if (err == 0) { | |
445 | err = dsl_prop_register(ds, | |
446 | zfs_prop_to_name(ZFS_PROP_DEDUP), | |
428870ff | 447 | dedup_changed_cb, os); |
13fe0198 MA |
448 | } |
449 | if (err == 0) { | |
450 | err = dsl_prop_register(ds, | |
451 | zfs_prop_to_name(ZFS_PROP_LOGBIAS), | |
428870ff | 452 | logbias_changed_cb, os); |
13fe0198 MA |
453 | } |
454 | if (err == 0) { | |
455 | err = dsl_prop_register(ds, | |
456 | zfs_prop_to_name(ZFS_PROP_SYNC), | |
428870ff | 457 | sync_changed_cb, os); |
13fe0198 | 458 | } |
faf0f58c MA |
459 | if (err == 0) { |
460 | err = dsl_prop_register(ds, | |
461 | zfs_prop_to_name( | |
462 | ZFS_PROP_REDUNDANT_METADATA), | |
463 | redundant_metadata_changed_cb, os); | |
464 | } | |
f1512ee6 MA |
465 | if (err == 0) { |
466 | err = dsl_prop_register(ds, | |
467 | zfs_prop_to_name(ZFS_PROP_RECORDSIZE), | |
468 | recordsize_changed_cb, os); | |
469 | } | |
50c957f7 NB |
470 | if (err == 0) { |
471 | err = dsl_prop_register(ds, | |
472 | zfs_prop_to_name(ZFS_PROP_DNODESIZE), | |
473 | dnodesize_changed_cb, os); | |
474 | } | |
b128c09f | 475 | } |
47dfff3b MA |
476 | if (needlock) |
477 | dsl_pool_config_exit(dmu_objset_pool(os), FTAG); | |
13fe0198 | 478 | if (err != 0) { |
d3c2ae1c | 479 | arc_buf_destroy(os->os_phys_buf, &os->os_phys_buf); |
428870ff | 480 | kmem_free(os, sizeof (objset_t)); |
34dc7c2f BB |
481 | return (err); |
482 | } | |
9b67f605 | 483 | } else { |
34dc7c2f | 484 | /* It's the meta-objset. */ |
428870ff | 485 | os->os_checksum = ZIO_CHECKSUM_FLETCHER_4; |
99197f03 | 486 | os->os_compress = ZIO_COMPRESS_ON; |
428870ff BB |
487 | os->os_copies = spa_max_replication(spa); |
488 | os->os_dedup_checksum = ZIO_CHECKSUM_OFF; | |
faf0f58c MA |
489 | os->os_dedup_verify = B_FALSE; |
490 | os->os_logbias = ZFS_LOGBIAS_LATENCY; | |
491 | os->os_sync = ZFS_SYNC_STANDARD; | |
428870ff BB |
492 | os->os_primary_cache = ZFS_CACHE_ALL; |
493 | os->os_secondary_cache = ZFS_CACHE_ALL; | |
50c957f7 | 494 | os->os_dnodesize = DNODE_MIN_SIZE; |
34dc7c2f BB |
495 | } |
496 | ||
0c66c32d | 497 | if (ds == NULL || !ds->ds_is_snapshot) |
572e2857 | 498 | os->os_zil_header = os->os_phys->os_zil_header; |
428870ff | 499 | os->os_zil = zil_alloc(os, &os->os_zil_header); |
34dc7c2f BB |
500 | |
501 | for (i = 0; i < TXG_SIZE; i++) { | |
428870ff | 502 | list_create(&os->os_dirty_dnodes[i], sizeof (dnode_t), |
34dc7c2f | 503 | offsetof(dnode_t, dn_dirty_link[i])); |
428870ff | 504 | list_create(&os->os_free_dnodes[i], sizeof (dnode_t), |
34dc7c2f BB |
505 | offsetof(dnode_t, dn_dirty_link[i])); |
506 | } | |
428870ff | 507 | list_create(&os->os_dnodes, sizeof (dnode_t), |
34dc7c2f | 508 | offsetof(dnode_t, dn_link)); |
428870ff | 509 | list_create(&os->os_downgraded_dbufs, sizeof (dmu_buf_impl_t), |
34dc7c2f BB |
510 | offsetof(dmu_buf_impl_t, db_link)); |
511 | ||
0c66c32d JG |
512 | list_link_init(&os->os_evicting_node); |
513 | ||
428870ff BB |
514 | mutex_init(&os->os_lock, NULL, MUTEX_DEFAULT, NULL); |
515 | mutex_init(&os->os_obj_lock, NULL, MUTEX_DEFAULT, NULL); | |
516 | mutex_init(&os->os_user_ptr_lock, NULL, MUTEX_DEFAULT, NULL); | |
517 | ||
0c66c32d JG |
518 | dnode_special_open(os, &os->os_phys->os_meta_dnode, |
519 | DMU_META_DNODE_OBJECT, &os->os_meta_dnode); | |
428870ff | 520 | if (arc_buf_size(os->os_phys_buf) >= sizeof (objset_phys_t)) { |
0c66c32d JG |
521 | dnode_special_open(os, &os->os_phys->os_userused_dnode, |
522 | DMU_USERUSED_OBJECT, &os->os_userused_dnode); | |
523 | dnode_special_open(os, &os->os_phys->os_groupused_dnode, | |
524 | DMU_GROUPUSED_OBJECT, &os->os_groupused_dnode); | |
9babb374 | 525 | } |
34dc7c2f | 526 | |
1de321e6 JX |
527 | mutex_init(&os->os_upgrade_lock, NULL, MUTEX_DEFAULT, NULL); |
528 | ||
428870ff | 529 | *osp = os; |
34dc7c2f BB |
530 | return (0); |
531 | } | |
532 | ||
428870ff BB |
533 | int |
534 | dmu_objset_from_ds(dsl_dataset_t *ds, objset_t **osp) | |
34dc7c2f | 535 | { |
428870ff | 536 | int err = 0; |
34dc7c2f | 537 | |
47dfff3b MA |
538 | /* |
539 | * We shouldn't be doing anything with dsl_dataset_t's unless the | |
540 | * pool_config lock is held, or the dataset is long-held. | |
541 | */ | |
542 | ASSERT(dsl_pool_config_held(ds->ds_dir->dd_pool) || | |
543 | dsl_dataset_long_held(ds)); | |
544 | ||
34dc7c2f | 545 | mutex_enter(&ds->ds_opening_lock); |
9b67f605 MA |
546 | if (ds->ds_objset == NULL) { |
547 | objset_t *os; | |
34dc7c2f | 548 | err = dmu_objset_open_impl(dsl_dataset_get_spa(ds), |
9b67f605 MA |
549 | ds, dsl_dataset_get_blkptr(ds), &os); |
550 | ||
551 | if (err == 0) { | |
552 | mutex_enter(&ds->ds_lock); | |
553 | ASSERT(ds->ds_objset == NULL); | |
554 | ds->ds_objset = os; | |
555 | mutex_exit(&ds->ds_lock); | |
556 | } | |
34dc7c2f | 557 | } |
9b67f605 | 558 | *osp = ds->ds_objset; |
34dc7c2f | 559 | mutex_exit(&ds->ds_opening_lock); |
428870ff | 560 | return (err); |
34dc7c2f BB |
561 | } |
562 | ||
13fe0198 MA |
563 | /* |
564 | * Holds the pool while the objset is held. Therefore only one objset | |
565 | * can be held at a time. | |
566 | */ | |
34dc7c2f | 567 | int |
428870ff | 568 | dmu_objset_hold(const char *name, void *tag, objset_t **osp) |
34dc7c2f | 569 | { |
13fe0198 | 570 | dsl_pool_t *dp; |
428870ff | 571 | dsl_dataset_t *ds; |
34dc7c2f BB |
572 | int err; |
573 | ||
13fe0198 MA |
574 | err = dsl_pool_hold(name, tag, &dp); |
575 | if (err != 0) | |
576 | return (err); | |
577 | err = dsl_dataset_hold(dp, name, tag, &ds); | |
578 | if (err != 0) { | |
579 | dsl_pool_rele(dp, tag); | |
428870ff | 580 | return (err); |
13fe0198 | 581 | } |
428870ff BB |
582 | |
583 | err = dmu_objset_from_ds(ds, osp); | |
13fe0198 | 584 | if (err != 0) { |
428870ff | 585 | dsl_dataset_rele(ds, tag); |
13fe0198 MA |
586 | dsl_pool_rele(dp, tag); |
587 | } | |
428870ff | 588 | |
34dc7c2f BB |
589 | return (err); |
590 | } | |
591 | ||
9c43027b AJ |
592 | static int |
593 | dmu_objset_own_impl(dsl_dataset_t *ds, dmu_objset_type_t type, | |
594 | boolean_t readonly, void *tag, objset_t **osp) | |
595 | { | |
596 | int err; | |
597 | ||
598 | err = dmu_objset_from_ds(ds, osp); | |
599 | if (err != 0) { | |
600 | dsl_dataset_disown(ds, tag); | |
601 | } else if (type != DMU_OST_ANY && type != (*osp)->os_phys->os_type) { | |
602 | dsl_dataset_disown(ds, tag); | |
603 | return (SET_ERROR(EINVAL)); | |
604 | } else if (!readonly && dsl_dataset_is_snapshot(ds)) { | |
605 | dsl_dataset_disown(ds, tag); | |
606 | return (SET_ERROR(EROFS)); | |
607 | } | |
608 | return (err); | |
609 | } | |
610 | ||
13fe0198 MA |
611 | /* |
612 | * dsl_pool must not be held when this is called. | |
613 | * Upon successful return, there will be a longhold on the dataset, | |
614 | * and the dsl_pool will not be held. | |
615 | */ | |
34dc7c2f | 616 | int |
428870ff BB |
617 | dmu_objset_own(const char *name, dmu_objset_type_t type, |
618 | boolean_t readonly, void *tag, objset_t **osp) | |
34dc7c2f | 619 | { |
13fe0198 | 620 | dsl_pool_t *dp; |
34dc7c2f BB |
621 | dsl_dataset_t *ds; |
622 | int err; | |
623 | ||
13fe0198 MA |
624 | err = dsl_pool_hold(name, FTAG, &dp); |
625 | if (err != 0) | |
626 | return (err); | |
627 | err = dsl_dataset_own(dp, name, tag, &ds); | |
628 | if (err != 0) { | |
629 | dsl_pool_rele(dp, FTAG); | |
34dc7c2f | 630 | return (err); |
13fe0198 | 631 | } |
9c43027b | 632 | err = dmu_objset_own_impl(ds, type, readonly, tag, osp); |
13fe0198 | 633 | dsl_pool_rele(dp, FTAG); |
9c43027b | 634 | |
1de321e6 JX |
635 | if (err == 0 && dmu_objset_userobjspace_upgradable(*osp)) |
636 | dmu_objset_userobjspace_upgrade(*osp); | |
637 | ||
34dc7c2f BB |
638 | return (err); |
639 | } | |
640 | ||
9c43027b AJ |
641 | int |
642 | dmu_objset_own_obj(dsl_pool_t *dp, uint64_t obj, dmu_objset_type_t type, | |
643 | boolean_t readonly, void *tag, objset_t **osp) | |
644 | { | |
645 | dsl_dataset_t *ds; | |
646 | int err; | |
647 | ||
648 | err = dsl_dataset_own_obj(dp, obj, tag, &ds); | |
649 | if (err != 0) | |
650 | return (err); | |
651 | ||
652 | return (dmu_objset_own_impl(ds, type, readonly, tag, osp)); | |
653 | } | |
654 | ||
34dc7c2f | 655 | void |
428870ff | 656 | dmu_objset_rele(objset_t *os, void *tag) |
34dc7c2f | 657 | { |
13fe0198 | 658 | dsl_pool_t *dp = dmu_objset_pool(os); |
428870ff | 659 | dsl_dataset_rele(os->os_dsl_dataset, tag); |
13fe0198 | 660 | dsl_pool_rele(dp, tag); |
428870ff | 661 | } |
b128c09f | 662 | |
831baf06 KW |
663 | /* |
664 | * When we are called, os MUST refer to an objset associated with a dataset | |
665 | * that is owned by 'tag'; that is, is held and long held by 'tag' and ds_owner | |
666 | * == tag. We will then release and reacquire ownership of the dataset while | |
667 | * holding the pool config_rwlock to avoid intervening namespace or ownership | |
668 | * changes may occur. | |
669 | * | |
670 | * This exists solely to accommodate zfs_ioc_userspace_upgrade()'s desire to | |
671 | * release the hold on its dataset and acquire a new one on the dataset of the | |
672 | * same name so that it can be partially torn down and reconstructed. | |
673 | */ | |
674 | void | |
675 | dmu_objset_refresh_ownership(objset_t *os, void *tag) | |
676 | { | |
677 | dsl_pool_t *dp; | |
678 | dsl_dataset_t *ds, *newds; | |
eca7b760 | 679 | char name[ZFS_MAX_DATASET_NAME_LEN]; |
831baf06 KW |
680 | |
681 | ds = os->os_dsl_dataset; | |
682 | VERIFY3P(ds, !=, NULL); | |
683 | VERIFY3P(ds->ds_owner, ==, tag); | |
684 | VERIFY(dsl_dataset_long_held(ds)); | |
685 | ||
686 | dsl_dataset_name(ds, name); | |
687 | dp = dmu_objset_pool(os); | |
688 | dsl_pool_config_enter(dp, FTAG); | |
689 | dmu_objset_disown(os, tag); | |
690 | VERIFY0(dsl_dataset_own(dp, name, tag, &newds)); | |
691 | VERIFY3P(newds, ==, os->os_dsl_dataset); | |
692 | dsl_pool_config_exit(dp, FTAG); | |
693 | } | |
694 | ||
428870ff BB |
695 | void |
696 | dmu_objset_disown(objset_t *os, void *tag) | |
697 | { | |
1de321e6 JX |
698 | /* |
699 | * Stop upgrading thread | |
700 | */ | |
701 | dmu_objset_upgrade_stop(os); | |
428870ff | 702 | dsl_dataset_disown(os->os_dsl_dataset, tag); |
34dc7c2f BB |
703 | } |
704 | ||
13fe0198 | 705 | void |
34dc7c2f BB |
706 | dmu_objset_evict_dbufs(objset_t *os) |
707 | { | |
0c66c32d | 708 | dnode_t *dn_marker; |
34dc7c2f BB |
709 | dnode_t *dn; |
710 | ||
0c66c32d | 711 | dn_marker = kmem_alloc(sizeof (dnode_t), KM_SLEEP); |
34dc7c2f | 712 | |
0c66c32d JG |
713 | mutex_enter(&os->os_lock); |
714 | dn = list_head(&os->os_dnodes); | |
715 | while (dn != NULL) { | |
716 | /* | |
717 | * Skip dnodes without holds. We have to do this dance | |
718 | * because dnode_add_ref() only works if there is already a | |
719 | * hold. If the dnode has no holds, then it has no dbufs. | |
720 | */ | |
721 | if (dnode_add_ref(dn, FTAG)) { | |
722 | list_insert_after(&os->os_dnodes, dn, dn_marker); | |
723 | mutex_exit(&os->os_lock); | |
34dc7c2f | 724 | |
0c66c32d JG |
725 | dnode_evict_dbufs(dn); |
726 | dnode_rele(dn, FTAG); | |
34dc7c2f | 727 | |
0c66c32d JG |
728 | mutex_enter(&os->os_lock); |
729 | dn = list_next(&os->os_dnodes, dn_marker); | |
730 | list_remove(&os->os_dnodes, dn_marker); | |
731 | } else { | |
732 | dn = list_next(&os->os_dnodes, dn); | |
733 | } | |
734 | } | |
735 | mutex_exit(&os->os_lock); | |
34dc7c2f | 736 | |
0c66c32d | 737 | kmem_free(dn_marker, sizeof (dnode_t)); |
34dc7c2f | 738 | |
0c66c32d JG |
739 | if (DMU_USERUSED_DNODE(os) != NULL) { |
740 | dnode_evict_dbufs(DMU_GROUPUSED_DNODE(os)); | |
741 | dnode_evict_dbufs(DMU_USERUSED_DNODE(os)); | |
34dc7c2f | 742 | } |
0c66c32d | 743 | dnode_evict_dbufs(DMU_META_DNODE(os)); |
34dc7c2f BB |
744 | } |
745 | ||
0c66c32d JG |
746 | /* |
747 | * Objset eviction processing is split into into two pieces. | |
748 | * The first marks the objset as evicting, evicts any dbufs that | |
749 | * have a refcount of zero, and then queues up the objset for the | |
750 | * second phase of eviction. Once os->os_dnodes has been cleared by | |
751 | * dnode_buf_pageout()->dnode_destroy(), the second phase is executed. | |
752 | * The second phase closes the special dnodes, dequeues the objset from | |
753 | * the list of those undergoing eviction, and finally frees the objset. | |
754 | * | |
755 | * NOTE: Due to asynchronous eviction processing (invocation of | |
756 | * dnode_buf_pageout()), it is possible for the meta dnode for the | |
757 | * objset to have no holds even though os->os_dnodes is not empty. | |
758 | */ | |
34dc7c2f | 759 | void |
428870ff | 760 | dmu_objset_evict(objset_t *os) |
34dc7c2f | 761 | { |
d6320ddb | 762 | int t; |
34dc7c2f | 763 | |
6f1ffb06 MA |
764 | dsl_dataset_t *ds = os->os_dsl_dataset; |
765 | ||
d6320ddb | 766 | for (t = 0; t < TXG_SIZE; t++) |
428870ff | 767 | ASSERT(!dmu_objset_is_dirty(os, t)); |
34dc7c2f | 768 | |
0eb21616 JG |
769 | if (ds) |
770 | dsl_prop_unregister_all(ds, os); | |
34dc7c2f | 771 | |
428870ff BB |
772 | if (os->os_sa) |
773 | sa_tear_down(os); | |
774 | ||
13fe0198 | 775 | dmu_objset_evict_dbufs(os); |
34dc7c2f | 776 | |
0c66c32d JG |
777 | mutex_enter(&os->os_lock); |
778 | spa_evicting_os_register(os->os_spa, os); | |
779 | if (list_is_empty(&os->os_dnodes)) { | |
780 | mutex_exit(&os->os_lock); | |
781 | dmu_objset_evict_done(os); | |
782 | } else { | |
783 | mutex_exit(&os->os_lock); | |
784 | } | |
785 | } | |
786 | ||
787 | void | |
788 | dmu_objset_evict_done(objset_t *os) | |
789 | { | |
790 | ASSERT3P(list_head(&os->os_dnodes), ==, NULL); | |
791 | ||
572e2857 BB |
792 | dnode_special_close(&os->os_meta_dnode); |
793 | if (DMU_USERUSED_DNODE(os)) { | |
794 | dnode_special_close(&os->os_userused_dnode); | |
795 | dnode_special_close(&os->os_groupused_dnode); | |
9babb374 | 796 | } |
428870ff BB |
797 | zil_free(os->os_zil); |
798 | ||
d3c2ae1c | 799 | arc_buf_destroy(os->os_phys_buf, &os->os_phys_buf); |
572e2857 BB |
800 | |
801 | /* | |
802 | * This is a barrier to prevent the objset from going away in | |
803 | * dnode_move() until we can safely ensure that the objset is still in | |
804 | * use. We consider the objset valid before the barrier and invalid | |
805 | * after the barrier. | |
806 | */ | |
807 | rw_enter(&os_lock, RW_READER); | |
808 | rw_exit(&os_lock); | |
809 | ||
428870ff BB |
810 | mutex_destroy(&os->os_lock); |
811 | mutex_destroy(&os->os_obj_lock); | |
812 | mutex_destroy(&os->os_user_ptr_lock); | |
0c66c32d | 813 | spa_evicting_os_deregister(os->os_spa, os); |
428870ff BB |
814 | kmem_free(os, sizeof (objset_t)); |
815 | } | |
9babb374 | 816 | |
428870ff BB |
817 | timestruc_t |
818 | dmu_objset_snap_cmtime(objset_t *os) | |
819 | { | |
820 | return (dsl_dir_snap_cmtime(os->os_dsl_dataset->ds_dir)); | |
34dc7c2f BB |
821 | } |
822 | ||
823 | /* called from dsl for meta-objset */ | |
428870ff | 824 | objset_t * |
34dc7c2f BB |
825 | dmu_objset_create_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp, |
826 | dmu_objset_type_t type, dmu_tx_t *tx) | |
827 | { | |
428870ff | 828 | objset_t *os; |
34dc7c2f BB |
829 | dnode_t *mdn; |
830 | ||
831 | ASSERT(dmu_tx_is_syncing(tx)); | |
13fe0198 | 832 | |
572e2857 | 833 | if (ds != NULL) |
13fe0198 | 834 | VERIFY0(dmu_objset_from_ds(ds, &os)); |
572e2857 | 835 | else |
13fe0198 | 836 | VERIFY0(dmu_objset_open_impl(spa, NULL, bp, &os)); |
572e2857 BB |
837 | |
838 | mdn = DMU_META_DNODE(os); | |
34dc7c2f | 839 | |
50c957f7 NB |
840 | dnode_allocate(mdn, DMU_OT_DNODE, DNODE_BLOCK_SIZE, DN_MAX_INDBLKSHIFT, |
841 | DMU_OT_NONE, 0, DNODE_MIN_SLOTS, tx); | |
34dc7c2f BB |
842 | |
843 | /* | |
844 | * We don't want to have to increase the meta-dnode's nlevels | |
845 | * later, because then we could do it in quescing context while | |
846 | * we are also accessing it in open context. | |
847 | * | |
848 | * This precaution is not necessary for the MOS (ds == NULL), | |
849 | * because the MOS is only updated in syncing context. | |
850 | * This is most fortunate: the MOS is the only objset that | |
851 | * needs to be synced multiple times as spa_sync() iterates | |
852 | * to convergence, so minimizing its dn_nlevels matters. | |
853 | */ | |
854 | if (ds != NULL) { | |
855 | int levels = 1; | |
856 | ||
857 | /* | |
858 | * Determine the number of levels necessary for the meta-dnode | |
859 | * to contain DN_MAX_OBJECT dnodes. | |
860 | */ | |
861 | while ((uint64_t)mdn->dn_nblkptr << (mdn->dn_datablkshift + | |
862 | (levels - 1) * (mdn->dn_indblkshift - SPA_BLKPTRSHIFT)) < | |
863 | DN_MAX_OBJECT * sizeof (dnode_phys_t)) | |
864 | levels++; | |
865 | ||
866 | mdn->dn_next_nlevels[tx->tx_txg & TXG_MASK] = | |
867 | mdn->dn_nlevels = levels; | |
868 | } | |
869 | ||
870 | ASSERT(type != DMU_OST_NONE); | |
871 | ASSERT(type != DMU_OST_ANY); | |
872 | ASSERT(type < DMU_OST_NUMTYPES); | |
428870ff BB |
873 | os->os_phys->os_type = type; |
874 | if (dmu_objset_userused_enabled(os)) { | |
875 | os->os_phys->os_flags |= OBJSET_FLAG_USERACCOUNTING_COMPLETE; | |
1de321e6 JX |
876 | if (dmu_objset_userobjused_enabled(os)) { |
877 | ds->ds_feature_activation_needed[ | |
878 | SPA_FEATURE_USEROBJ_ACCOUNTING] = B_TRUE; | |
879 | os->os_phys->os_flags |= | |
880 | OBJSET_FLAG_USEROBJACCOUNTING_COMPLETE; | |
881 | } | |
428870ff | 882 | os->os_flags = os->os_phys->os_flags; |
9babb374 | 883 | } |
34dc7c2f BB |
884 | |
885 | dsl_dataset_dirty(ds, tx); | |
886 | ||
428870ff | 887 | return (os); |
34dc7c2f BB |
888 | } |
889 | ||
13fe0198 MA |
890 | typedef struct dmu_objset_create_arg { |
891 | const char *doca_name; | |
892 | cred_t *doca_cred; | |
893 | void (*doca_userfunc)(objset_t *os, void *arg, | |
894 | cred_t *cr, dmu_tx_t *tx); | |
895 | void *doca_userarg; | |
896 | dmu_objset_type_t doca_type; | |
897 | uint64_t doca_flags; | |
898 | } dmu_objset_create_arg_t; | |
34dc7c2f BB |
899 | |
900 | /*ARGSUSED*/ | |
901 | static int | |
13fe0198 | 902 | dmu_objset_create_check(void *arg, dmu_tx_t *tx) |
34dc7c2f | 903 | { |
13fe0198 MA |
904 | dmu_objset_create_arg_t *doca = arg; |
905 | dsl_pool_t *dp = dmu_tx_pool(tx); | |
906 | dsl_dir_t *pdd; | |
907 | const char *tail; | |
908 | int error; | |
34dc7c2f | 909 | |
13fe0198 | 910 | if (strchr(doca->doca_name, '@') != NULL) |
2e528b49 | 911 | return (SET_ERROR(EINVAL)); |
34dc7c2f | 912 | |
eca7b760 IK |
913 | if (strlen(doca->doca_name) >= ZFS_MAX_DATASET_NAME_LEN) |
914 | return (SET_ERROR(ENAMETOOLONG)); | |
915 | ||
13fe0198 MA |
916 | error = dsl_dir_hold(dp, doca->doca_name, FTAG, &pdd, &tail); |
917 | if (error != 0) | |
918 | return (error); | |
919 | if (tail == NULL) { | |
920 | dsl_dir_rele(pdd, FTAG); | |
2e528b49 | 921 | return (SET_ERROR(EEXIST)); |
34dc7c2f | 922 | } |
788eb90c JJ |
923 | error = dsl_fs_ss_limit_check(pdd, 1, ZFS_PROP_FILESYSTEM_LIMIT, NULL, |
924 | doca->doca_cred); | |
13fe0198 | 925 | dsl_dir_rele(pdd, FTAG); |
34dc7c2f | 926 | |
788eb90c | 927 | return (error); |
34dc7c2f BB |
928 | } |
929 | ||
930 | static void | |
13fe0198 | 931 | dmu_objset_create_sync(void *arg, dmu_tx_t *tx) |
34dc7c2f | 932 | { |
13fe0198 MA |
933 | dmu_objset_create_arg_t *doca = arg; |
934 | dsl_pool_t *dp = dmu_tx_pool(tx); | |
935 | dsl_dir_t *pdd; | |
936 | const char *tail; | |
6f1ffb06 | 937 | dsl_dataset_t *ds; |
13fe0198 | 938 | uint64_t obj; |
6f1ffb06 | 939 | blkptr_t *bp; |
13fe0198 | 940 | objset_t *os; |
34dc7c2f | 941 | |
13fe0198 | 942 | VERIFY0(dsl_dir_hold(dp, doca->doca_name, FTAG, &pdd, &tail)); |
34dc7c2f | 943 | |
13fe0198 MA |
944 | obj = dsl_dataset_create_sync(pdd, tail, NULL, doca->doca_flags, |
945 | doca->doca_cred, tx); | |
34dc7c2f | 946 | |
13fe0198 | 947 | VERIFY0(dsl_dataset_hold_obj(pdd->dd_pool, obj, FTAG, &ds)); |
6f1ffb06 | 948 | bp = dsl_dataset_get_blkptr(ds); |
13fe0198 MA |
949 | os = dmu_objset_create_impl(pdd->dd_pool->dp_spa, |
950 | ds, bp, doca->doca_type, tx); | |
34dc7c2f | 951 | |
13fe0198 MA |
952 | if (doca->doca_userfunc != NULL) { |
953 | doca->doca_userfunc(os, doca->doca_userarg, | |
954 | doca->doca_cred, tx); | |
34dc7c2f BB |
955 | } |
956 | ||
13fe0198 | 957 | spa_history_log_internal_ds(ds, "create", tx, ""); |
a0bd735a BP |
958 | zvol_create_minors(dp->dp_spa, doca->doca_name, B_TRUE); |
959 | ||
6f1ffb06 | 960 | dsl_dataset_rele(ds, FTAG); |
13fe0198 | 961 | dsl_dir_rele(pdd, FTAG); |
34dc7c2f BB |
962 | } |
963 | ||
964 | int | |
428870ff | 965 | dmu_objset_create(const char *name, dmu_objset_type_t type, uint64_t flags, |
34dc7c2f BB |
966 | void (*func)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx), void *arg) |
967 | { | |
13fe0198 | 968 | dmu_objset_create_arg_t doca; |
34dc7c2f | 969 | |
13fe0198 MA |
970 | doca.doca_name = name; |
971 | doca.doca_cred = CRED(); | |
972 | doca.doca_flags = flags; | |
973 | doca.doca_userfunc = func; | |
974 | doca.doca_userarg = arg; | |
975 | doca.doca_type = type; | |
34dc7c2f | 976 | |
13fe0198 | 977 | return (dsl_sync_task(name, |
3d45fdd6 MA |
978 | dmu_objset_create_check, dmu_objset_create_sync, &doca, |
979 | 5, ZFS_SPACE_CHECK_NORMAL)); | |
34dc7c2f BB |
980 | } |
981 | ||
13fe0198 MA |
982 | typedef struct dmu_objset_clone_arg { |
983 | const char *doca_clone; | |
984 | const char *doca_origin; | |
985 | cred_t *doca_cred; | |
986 | } dmu_objset_clone_arg_t; | |
987 | ||
988 | /*ARGSUSED*/ | |
989 | static int | |
990 | dmu_objset_clone_check(void *arg, dmu_tx_t *tx) | |
34dc7c2f | 991 | { |
13fe0198 | 992 | dmu_objset_clone_arg_t *doca = arg; |
428870ff BB |
993 | dsl_dir_t *pdd; |
994 | const char *tail; | |
13fe0198 MA |
995 | int error; |
996 | dsl_dataset_t *origin; | |
997 | dsl_pool_t *dp = dmu_tx_pool(tx); | |
34dc7c2f | 998 | |
13fe0198 | 999 | if (strchr(doca->doca_clone, '@') != NULL) |
2e528b49 | 1000 | return (SET_ERROR(EINVAL)); |
13fe0198 | 1001 | |
eca7b760 IK |
1002 | if (strlen(doca->doca_clone) >= ZFS_MAX_DATASET_NAME_LEN) |
1003 | return (SET_ERROR(ENAMETOOLONG)); | |
1004 | ||
13fe0198 MA |
1005 | error = dsl_dir_hold(dp, doca->doca_clone, FTAG, &pdd, &tail); |
1006 | if (error != 0) | |
1007 | return (error); | |
428870ff | 1008 | if (tail == NULL) { |
13fe0198 | 1009 | dsl_dir_rele(pdd, FTAG); |
2e528b49 | 1010 | return (SET_ERROR(EEXIST)); |
34dc7c2f | 1011 | } |
1cddb8c9 | 1012 | |
788eb90c JJ |
1013 | error = dsl_fs_ss_limit_check(pdd, 1, ZFS_PROP_FILESYSTEM_LIMIT, NULL, |
1014 | doca->doca_cred); | |
1015 | if (error != 0) { | |
1016 | dsl_dir_rele(pdd, FTAG); | |
1017 | return (SET_ERROR(EDQUOT)); | |
1018 | } | |
13fe0198 | 1019 | dsl_dir_rele(pdd, FTAG); |
428870ff | 1020 | |
13fe0198 MA |
1021 | error = dsl_dataset_hold(dp, doca->doca_origin, FTAG, &origin); |
1022 | if (error != 0) | |
572e2857 BB |
1023 | return (error); |
1024 | ||
13fe0198 | 1025 | /* You can only clone snapshots, not the head datasets. */ |
0c66c32d | 1026 | if (!origin->ds_is_snapshot) { |
13fe0198 | 1027 | dsl_dataset_rele(origin, FTAG); |
2e528b49 | 1028 | return (SET_ERROR(EINVAL)); |
428870ff | 1029 | } |
13fe0198 | 1030 | dsl_dataset_rele(origin, FTAG); |
572e2857 | 1031 | |
13fe0198 | 1032 | return (0); |
9babb374 | 1033 | } |
34dc7c2f | 1034 | |
13fe0198 MA |
1035 | static void |
1036 | dmu_objset_clone_sync(void *arg, dmu_tx_t *tx) | |
34dc7c2f | 1037 | { |
13fe0198 MA |
1038 | dmu_objset_clone_arg_t *doca = arg; |
1039 | dsl_pool_t *dp = dmu_tx_pool(tx); | |
1040 | dsl_dir_t *pdd; | |
1041 | const char *tail; | |
1042 | dsl_dataset_t *origin, *ds; | |
1043 | uint64_t obj; | |
eca7b760 | 1044 | char namebuf[ZFS_MAX_DATASET_NAME_LEN]; |
6f1ffb06 | 1045 | |
13fe0198 MA |
1046 | VERIFY0(dsl_dir_hold(dp, doca->doca_clone, FTAG, &pdd, &tail)); |
1047 | VERIFY0(dsl_dataset_hold(dp, doca->doca_origin, FTAG, &origin)); | |
6f1ffb06 | 1048 | |
13fe0198 MA |
1049 | obj = dsl_dataset_create_sync(pdd, tail, origin, 0, |
1050 | doca->doca_cred, tx); | |
34dc7c2f | 1051 | |
13fe0198 MA |
1052 | VERIFY0(dsl_dataset_hold_obj(pdd->dd_pool, obj, FTAG, &ds)); |
1053 | dsl_dataset_name(origin, namebuf); | |
1054 | spa_history_log_internal_ds(ds, "clone", tx, | |
1055 | "origin=%s (%llu)", namebuf, origin->ds_object); | |
a0bd735a | 1056 | zvol_create_minors(dp->dp_spa, doca->doca_clone, B_TRUE); |
13fe0198 MA |
1057 | dsl_dataset_rele(ds, FTAG); |
1058 | dsl_dataset_rele(origin, FTAG); | |
1059 | dsl_dir_rele(pdd, FTAG); | |
34dc7c2f BB |
1060 | } |
1061 | ||
1062 | int | |
13fe0198 | 1063 | dmu_objset_clone(const char *clone, const char *origin) |
34dc7c2f | 1064 | { |
13fe0198 | 1065 | dmu_objset_clone_arg_t doca; |
34dc7c2f | 1066 | |
13fe0198 MA |
1067 | doca.doca_clone = clone; |
1068 | doca.doca_origin = origin; | |
1069 | doca.doca_cred = CRED(); | |
572e2857 | 1070 | |
13fe0198 | 1071 | return (dsl_sync_task(clone, |
3d45fdd6 MA |
1072 | dmu_objset_clone_check, dmu_objset_clone_sync, &doca, |
1073 | 5, ZFS_SPACE_CHECK_NORMAL)); | |
6f1ffb06 MA |
1074 | } |
1075 | ||
1076 | int | |
1077 | dmu_objset_snapshot_one(const char *fsname, const char *snapname) | |
1078 | { | |
1079 | int err; | |
1080 | char *longsnap = kmem_asprintf("%s@%s", fsname, snapname); | |
1081 | nvlist_t *snaps = fnvlist_alloc(); | |
1082 | ||
1083 | fnvlist_add_boolean(snaps, longsnap); | |
6f1ffb06 | 1084 | strfree(longsnap); |
13fe0198 MA |
1085 | err = dsl_dataset_snapshot(snaps, NULL, NULL); |
1086 | fnvlist_free(snaps); | |
6f1ffb06 MA |
1087 | return (err); |
1088 | } | |
1089 | ||
1de321e6 JX |
1090 | static void |
1091 | dmu_objset_upgrade_task_cb(void *data) | |
1092 | { | |
1093 | objset_t *os = data; | |
1094 | ||
1095 | mutex_enter(&os->os_upgrade_lock); | |
1096 | os->os_upgrade_status = EINTR; | |
1097 | if (!os->os_upgrade_exit) { | |
1098 | mutex_exit(&os->os_upgrade_lock); | |
1099 | ||
1100 | os->os_upgrade_status = os->os_upgrade_cb(os); | |
1101 | mutex_enter(&os->os_upgrade_lock); | |
1102 | } | |
1103 | os->os_upgrade_exit = B_TRUE; | |
1104 | os->os_upgrade_id = 0; | |
1105 | mutex_exit(&os->os_upgrade_lock); | |
1106 | } | |
1107 | ||
1108 | static void | |
1109 | dmu_objset_upgrade(objset_t *os, dmu_objset_upgrade_cb_t cb) | |
1110 | { | |
1111 | if (os->os_upgrade_id != 0) | |
1112 | return; | |
1113 | ||
1114 | mutex_enter(&os->os_upgrade_lock); | |
1115 | if (os->os_upgrade_id == 0 && os->os_upgrade_status == 0) { | |
1116 | os->os_upgrade_exit = B_FALSE; | |
1117 | os->os_upgrade_cb = cb; | |
1118 | os->os_upgrade_id = taskq_dispatch( | |
1119 | os->os_spa->spa_upgrade_taskq, | |
1120 | dmu_objset_upgrade_task_cb, os, TQ_SLEEP); | |
1121 | if (os->os_upgrade_id == 0) | |
1122 | os->os_upgrade_status = ENOMEM; | |
1123 | } | |
1124 | mutex_exit(&os->os_upgrade_lock); | |
1125 | } | |
1126 | ||
1127 | static void | |
1128 | dmu_objset_upgrade_stop(objset_t *os) | |
1129 | { | |
1130 | mutex_enter(&os->os_upgrade_lock); | |
1131 | os->os_upgrade_exit = B_TRUE; | |
1132 | if (os->os_upgrade_id != 0) { | |
1133 | taskqid_t id = os->os_upgrade_id; | |
1134 | ||
1135 | os->os_upgrade_id = 0; | |
1136 | mutex_exit(&os->os_upgrade_lock); | |
1137 | ||
1138 | taskq_cancel_id(os->os_spa->spa_upgrade_taskq, id); | |
1139 | } else { | |
1140 | mutex_exit(&os->os_upgrade_lock); | |
1141 | } | |
1142 | } | |
1143 | ||
34dc7c2f | 1144 | static void |
9babb374 | 1145 | dmu_objset_sync_dnodes(list_t *list, list_t *newlist, dmu_tx_t *tx) |
34dc7c2f BB |
1146 | { |
1147 | dnode_t *dn; | |
1148 | ||
c65aa5b2 | 1149 | while ((dn = list_head(list))) { |
34dc7c2f BB |
1150 | ASSERT(dn->dn_object != DMU_META_DNODE_OBJECT); |
1151 | ASSERT(dn->dn_dbuf->db_data_pending); | |
1152 | /* | |
9babb374 BB |
1153 | * Initialize dn_zio outside dnode_sync() because the |
1154 | * meta-dnode needs to set it ouside dnode_sync(). | |
34dc7c2f BB |
1155 | */ |
1156 | dn->dn_zio = dn->dn_dbuf->db_data_pending->dr_zio; | |
1157 | ASSERT(dn->dn_zio); | |
1158 | ||
1159 | ASSERT3U(dn->dn_nlevels, <=, DN_MAX_LEVELS); | |
1160 | list_remove(list, dn); | |
9babb374 BB |
1161 | |
1162 | if (newlist) { | |
1163 | (void) dnode_add_ref(dn, newlist); | |
1164 | list_insert_tail(newlist, dn); | |
1165 | } | |
1166 | ||
34dc7c2f BB |
1167 | dnode_sync(dn, tx); |
1168 | } | |
1169 | } | |
1170 | ||
1171 | /* ARGSUSED */ | |
1172 | static void | |
428870ff | 1173 | dmu_objset_write_ready(zio_t *zio, arc_buf_t *abuf, void *arg) |
34dc7c2f | 1174 | { |
d6320ddb BB |
1175 | int i; |
1176 | ||
b128c09f | 1177 | blkptr_t *bp = zio->io_bp; |
428870ff | 1178 | objset_t *os = arg; |
34dc7c2f | 1179 | dnode_phys_t *dnp = &os->os_phys->os_meta_dnode; |
34dc7c2f | 1180 | |
9b67f605 | 1181 | ASSERT(!BP_IS_EMBEDDED(bp)); |
13fe0198 MA |
1182 | ASSERT3P(bp, ==, os->os_rootbp); |
1183 | ASSERT3U(BP_GET_TYPE(bp), ==, DMU_OT_OBJSET); | |
1184 | ASSERT0(BP_GET_LEVEL(bp)); | |
34dc7c2f BB |
1185 | |
1186 | /* | |
9babb374 BB |
1187 | * Update rootbp fill count: it should be the number of objects |
1188 | * allocated in the object set (not counting the "special" | |
1189 | * objects that are stored in the objset_phys_t -- the meta | |
1190 | * dnode and user/group accounting objects). | |
34dc7c2f | 1191 | */ |
9babb374 | 1192 | bp->blk_fill = 0; |
d6320ddb | 1193 | for (i = 0; i < dnp->dn_nblkptr; i++) |
9b67f605 | 1194 | bp->blk_fill += BP_GET_FILL(&dnp->dn_blkptr[i]); |
428870ff BB |
1195 | } |
1196 | ||
1197 | /* ARGSUSED */ | |
1198 | static void | |
1199 | dmu_objset_write_done(zio_t *zio, arc_buf_t *abuf, void *arg) | |
1200 | { | |
1201 | blkptr_t *bp = zio->io_bp; | |
1202 | blkptr_t *bp_orig = &zio->io_bp_orig; | |
1203 | objset_t *os = arg; | |
34dc7c2f | 1204 | |
b128c09f | 1205 | if (zio->io_flags & ZIO_FLAG_IO_REWRITE) { |
428870ff | 1206 | ASSERT(BP_EQUAL(bp, bp_orig)); |
b128c09f | 1207 | } else { |
428870ff BB |
1208 | dsl_dataset_t *ds = os->os_dsl_dataset; |
1209 | dmu_tx_t *tx = os->os_synctx; | |
1210 | ||
1211 | (void) dsl_dataset_block_kill(ds, bp_orig, tx, B_TRUE); | |
1212 | dsl_dataset_block_born(ds, bp, tx); | |
34dc7c2f BB |
1213 | } |
1214 | } | |
1215 | ||
34dc7c2f BB |
1216 | /* called from dsl */ |
1217 | void | |
428870ff | 1218 | dmu_objset_sync(objset_t *os, zio_t *pio, dmu_tx_t *tx) |
34dc7c2f BB |
1219 | { |
1220 | int txgoff; | |
5dbd68a3 | 1221 | zbookmark_phys_t zb; |
428870ff | 1222 | zio_prop_t zp; |
34dc7c2f BB |
1223 | zio_t *zio; |
1224 | list_t *list; | |
9babb374 | 1225 | list_t *newlist = NULL; |
34dc7c2f BB |
1226 | dbuf_dirty_record_t *dr; |
1227 | ||
1228 | dprintf_ds(os->os_dsl_dataset, "txg=%llu\n", tx->tx_txg); | |
1229 | ||
1230 | ASSERT(dmu_tx_is_syncing(tx)); | |
1231 | /* XXX the write_done callback should really give us the tx... */ | |
1232 | os->os_synctx = tx; | |
1233 | ||
1234 | if (os->os_dsl_dataset == NULL) { | |
1235 | /* | |
1236 | * This is the MOS. If we have upgraded, | |
1237 | * spa_max_replication() could change, so reset | |
1238 | * os_copies here. | |
1239 | */ | |
1240 | os->os_copies = spa_max_replication(os->os_spa); | |
1241 | } | |
1242 | ||
1243 | /* | |
1244 | * Create the root block IO | |
1245 | */ | |
428870ff BB |
1246 | SET_BOOKMARK(&zb, os->os_dsl_dataset ? |
1247 | os->os_dsl_dataset->ds_object : DMU_META_OBJSET, | |
1248 | ZB_ROOT_OBJECT, ZB_ROOT_LEVEL, ZB_ROOT_BLKID); | |
294f6806 | 1249 | arc_release(os->os_phys_buf, &os->os_phys_buf); |
b128c09f | 1250 | |
2aa34383 | 1251 | dmu_write_policy(os, NULL, 0, 0, ZIO_COMPRESS_INHERIT, &zp); |
9babb374 | 1252 | |
428870ff | 1253 | zio = arc_write(pio, os->os_spa, tx->tx_txg, |
3a17a7a9 | 1254 | os->os_rootbp, os->os_phys_buf, DMU_OS_IS_L2CACHEABLE(os), |
bc77ba73 PD |
1255 | &zp, dmu_objset_write_ready, NULL, NULL, dmu_objset_write_done, |
1256 | os, ZIO_PRIORITY_ASYNC_WRITE, ZIO_FLAG_MUSTSUCCEED, &zb); | |
34dc7c2f BB |
1257 | |
1258 | /* | |
9babb374 | 1259 | * Sync special dnodes - the parent IO for the sync is the root block |
34dc7c2f | 1260 | */ |
572e2857 BB |
1261 | DMU_META_DNODE(os)->dn_zio = zio; |
1262 | dnode_sync(DMU_META_DNODE(os), tx); | |
34dc7c2f | 1263 | |
9babb374 BB |
1264 | os->os_phys->os_flags = os->os_flags; |
1265 | ||
572e2857 BB |
1266 | if (DMU_USERUSED_DNODE(os) && |
1267 | DMU_USERUSED_DNODE(os)->dn_type != DMU_OT_NONE) { | |
1268 | DMU_USERUSED_DNODE(os)->dn_zio = zio; | |
1269 | dnode_sync(DMU_USERUSED_DNODE(os), tx); | |
1270 | DMU_GROUPUSED_DNODE(os)->dn_zio = zio; | |
1271 | dnode_sync(DMU_GROUPUSED_DNODE(os), tx); | |
9babb374 BB |
1272 | } |
1273 | ||
34dc7c2f BB |
1274 | txgoff = tx->tx_txg & TXG_MASK; |
1275 | ||
9babb374 BB |
1276 | if (dmu_objset_userused_enabled(os)) { |
1277 | newlist = &os->os_synced_dnodes; | |
1278 | /* | |
1279 | * We must create the list here because it uses the | |
1280 | * dn_dirty_link[] of this txg. | |
1281 | */ | |
1282 | list_create(newlist, sizeof (dnode_t), | |
1283 | offsetof(dnode_t, dn_dirty_link[txgoff])); | |
1284 | } | |
1285 | ||
1286 | dmu_objset_sync_dnodes(&os->os_free_dnodes[txgoff], newlist, tx); | |
1287 | dmu_objset_sync_dnodes(&os->os_dirty_dnodes[txgoff], newlist, tx); | |
34dc7c2f | 1288 | |
572e2857 | 1289 | list = &DMU_META_DNODE(os)->dn_dirty_records[txgoff]; |
6f1ffb06 | 1290 | while ((dr = list_head(list))) { |
13fe0198 | 1291 | ASSERT0(dr->dr_dbuf->db_level); |
34dc7c2f BB |
1292 | list_remove(list, dr); |
1293 | if (dr->dr_zio) | |
1294 | zio_nowait(dr->dr_zio); | |
1295 | } | |
68cbd56e NB |
1296 | |
1297 | /* Enable dnode backfill if enough objects have been freed. */ | |
1298 | if (os->os_freed_dnodes >= dmu_rescan_dnode_threshold) { | |
1299 | os->os_rescan_dnodes = B_TRUE; | |
1300 | os->os_freed_dnodes = 0; | |
1301 | } | |
1302 | ||
34dc7c2f BB |
1303 | /* |
1304 | * Free intent log blocks up to this tx. | |
1305 | */ | |
1306 | zil_sync(os->os_zil, tx); | |
b128c09f | 1307 | os->os_phys->os_zil_header = os->os_zil_header; |
34dc7c2f BB |
1308 | zio_nowait(zio); |
1309 | } | |
1310 | ||
428870ff BB |
1311 | boolean_t |
1312 | dmu_objset_is_dirty(objset_t *os, uint64_t txg) | |
1313 | { | |
1314 | return (!list_is_empty(&os->os_dirty_dnodes[txg & TXG_MASK]) || | |
1315 | !list_is_empty(&os->os_free_dnodes[txg & TXG_MASK])); | |
1316 | } | |
1317 | ||
572e2857 | 1318 | static objset_used_cb_t *used_cbs[DMU_OST_NUMTYPES]; |
9babb374 BB |
1319 | |
1320 | void | |
1321 | dmu_objset_register_type(dmu_objset_type_t ost, objset_used_cb_t *cb) | |
1322 | { | |
1323 | used_cbs[ost] = cb; | |
1324 | } | |
1325 | ||
1326 | boolean_t | |
428870ff | 1327 | dmu_objset_userused_enabled(objset_t *os) |
9babb374 BB |
1328 | { |
1329 | return (spa_version(os->os_spa) >= SPA_VERSION_USERSPACE && | |
572e2857 BB |
1330 | used_cbs[os->os_phys->os_type] != NULL && |
1331 | DMU_USERUSED_DNODE(os) != NULL); | |
9babb374 BB |
1332 | } |
1333 | ||
1de321e6 JX |
1334 | boolean_t |
1335 | dmu_objset_userobjused_enabled(objset_t *os) | |
1336 | { | |
1337 | return (dmu_objset_userused_enabled(os) && | |
1338 | spa_feature_is_enabled(os->os_spa, SPA_FEATURE_USEROBJ_ACCOUNTING)); | |
1339 | } | |
1340 | ||
9b7a83cb JX |
1341 | typedef struct userquota_node { |
1342 | /* must be in the first filed, see userquota_update_cache() */ | |
1343 | char uqn_id[20 + DMU_OBJACCT_PREFIX_LEN]; | |
1344 | int64_t uqn_delta; | |
1345 | avl_node_t uqn_node; | |
1346 | } userquota_node_t; | |
1347 | ||
1348 | typedef struct userquota_cache { | |
1349 | avl_tree_t uqc_user_deltas; | |
1350 | avl_tree_t uqc_group_deltas; | |
1351 | } userquota_cache_t; | |
1352 | ||
1353 | static int | |
1354 | userquota_compare(const void *l, const void *r) | |
1355 | { | |
1356 | const userquota_node_t *luqn = l; | |
1357 | const userquota_node_t *ruqn = r; | |
1358 | ||
1359 | /* | |
1360 | * NB: can only access uqn_id because userquota_update_cache() doesn't | |
1361 | * pass in an entire userquota_node_t. | |
1362 | */ | |
1363 | return (strcmp(luqn->uqn_id, ruqn->uqn_id)); | |
1364 | } | |
1365 | ||
1366 | static void | |
1367 | do_userquota_cacheflush(objset_t *os, userquota_cache_t *cache, dmu_tx_t *tx) | |
1368 | { | |
1369 | void *cookie; | |
1370 | userquota_node_t *uqn; | |
1371 | ||
1372 | ASSERT(dmu_tx_is_syncing(tx)); | |
1373 | ||
1374 | cookie = NULL; | |
1375 | while ((uqn = avl_destroy_nodes(&cache->uqc_user_deltas, | |
1376 | &cookie)) != NULL) { | |
1377 | VERIFY0(zap_increment(os, DMU_USERUSED_OBJECT, | |
1378 | uqn->uqn_id, uqn->uqn_delta, tx)); | |
1379 | kmem_free(uqn, sizeof (*uqn)); | |
1380 | } | |
1381 | avl_destroy(&cache->uqc_user_deltas); | |
1382 | ||
1383 | cookie = NULL; | |
1384 | while ((uqn = avl_destroy_nodes(&cache->uqc_group_deltas, | |
1385 | &cookie)) != NULL) { | |
1386 | VERIFY0(zap_increment(os, DMU_GROUPUSED_OBJECT, | |
1387 | uqn->uqn_id, uqn->uqn_delta, tx)); | |
1388 | kmem_free(uqn, sizeof (*uqn)); | |
1389 | } | |
1390 | avl_destroy(&cache->uqc_group_deltas); | |
1391 | } | |
1392 | ||
1393 | static void | |
1394 | userquota_update_cache(avl_tree_t *avl, const char *id, int64_t delta) | |
1395 | { | |
1396 | userquota_node_t *uqn; | |
1397 | avl_index_t idx; | |
1398 | ||
1399 | ASSERT(strlen(id) < sizeof (uqn->uqn_id)); | |
1400 | /* | |
1401 | * Use id directly for searching because uqn_id is the first field of | |
1402 | * userquota_node_t and fields after uqn_id won't be accessed in | |
1403 | * avl_find(). | |
1404 | */ | |
1405 | uqn = avl_find(avl, (const void *)id, &idx); | |
1406 | if (uqn == NULL) { | |
1407 | uqn = kmem_zalloc(sizeof (*uqn), KM_SLEEP); | |
1408 | strcpy(uqn->uqn_id, id); | |
1409 | avl_insert(avl, uqn, idx); | |
1410 | } | |
1411 | uqn->uqn_delta += delta; | |
1412 | } | |
1413 | ||
428870ff | 1414 | static void |
9b7a83cb JX |
1415 | do_userquota_update(userquota_cache_t *cache, uint64_t used, uint64_t flags, |
1416 | uint64_t user, uint64_t group, boolean_t subtract) | |
428870ff BB |
1417 | { |
1418 | if ((flags & DNODE_FLAG_USERUSED_ACCOUNTED)) { | |
50c957f7 | 1419 | int64_t delta = DNODE_MIN_SIZE + used; |
9b7a83cb JX |
1420 | char name[20]; |
1421 | ||
428870ff BB |
1422 | if (subtract) |
1423 | delta = -delta; | |
9b7a83cb JX |
1424 | |
1425 | (void) sprintf(name, "%llx", (longlong_t)user); | |
1426 | userquota_update_cache(&cache->uqc_user_deltas, name, delta); | |
1427 | ||
1428 | (void) sprintf(name, "%llx", (longlong_t)group); | |
1429 | userquota_update_cache(&cache->uqc_group_deltas, name, delta); | |
428870ff BB |
1430 | } |
1431 | } | |
1432 | ||
1de321e6 | 1433 | static void |
9b7a83cb JX |
1434 | do_userobjquota_update(userquota_cache_t *cache, uint64_t flags, |
1435 | uint64_t user, uint64_t group, boolean_t subtract) | |
1de321e6 JX |
1436 | { |
1437 | if (flags & DNODE_FLAG_USEROBJUSED_ACCOUNTED) { | |
1438 | char name[20 + DMU_OBJACCT_PREFIX_LEN]; | |
9b7a83cb | 1439 | int delta = subtract ? -1 : 1; |
1de321e6 JX |
1440 | |
1441 | (void) snprintf(name, sizeof (name), DMU_OBJACCT_PREFIX "%llx", | |
1442 | (longlong_t)user); | |
9b7a83cb | 1443 | userquota_update_cache(&cache->uqc_user_deltas, name, delta); |
1de321e6 JX |
1444 | |
1445 | (void) snprintf(name, sizeof (name), DMU_OBJACCT_PREFIX "%llx", | |
1446 | (longlong_t)group); | |
9b7a83cb | 1447 | userquota_update_cache(&cache->uqc_group_deltas, name, delta); |
1de321e6 JX |
1448 | } |
1449 | } | |
1450 | ||
9babb374 | 1451 | void |
428870ff | 1452 | dmu_objset_do_userquota_updates(objset_t *os, dmu_tx_t *tx) |
9babb374 BB |
1453 | { |
1454 | dnode_t *dn; | |
1455 | list_t *list = &os->os_synced_dnodes; | |
9b7a83cb | 1456 | userquota_cache_t cache = { { 0 } }; |
9babb374 BB |
1457 | |
1458 | ASSERT(list_head(list) == NULL || dmu_objset_userused_enabled(os)); | |
1459 | ||
9b7a83cb JX |
1460 | avl_create(&cache.uqc_user_deltas, userquota_compare, |
1461 | sizeof (userquota_node_t), offsetof(userquota_node_t, uqn_node)); | |
1462 | avl_create(&cache.uqc_group_deltas, userquota_compare, | |
1463 | sizeof (userquota_node_t), offsetof(userquota_node_t, uqn_node)); | |
1464 | ||
6f1ffb06 | 1465 | while ((dn = list_head(list))) { |
572e2857 | 1466 | int flags; |
9babb374 | 1467 | ASSERT(!DMU_OBJECT_IS_SPECIAL(dn->dn_object)); |
9babb374 BB |
1468 | ASSERT(dn->dn_phys->dn_type == DMU_OT_NONE || |
1469 | dn->dn_phys->dn_flags & | |
1470 | DNODE_FLAG_USERUSED_ACCOUNTED); | |
1471 | ||
1472 | /* Allocate the user/groupused objects if necessary. */ | |
572e2857 | 1473 | if (DMU_USERUSED_DNODE(os)->dn_type == DMU_OT_NONE) { |
9b7a83cb | 1474 | VERIFY0(zap_create_claim(os, DMU_USERUSED_OBJECT, |
9babb374 | 1475 | DMU_OT_USERGROUP_USED, DMU_OT_NONE, 0, tx)); |
9b7a83cb | 1476 | VERIFY0(zap_create_claim(os, DMU_GROUPUSED_OBJECT, |
9babb374 BB |
1477 | DMU_OT_USERGROUP_USED, DMU_OT_NONE, 0, tx)); |
1478 | } | |
1479 | ||
572e2857 BB |
1480 | flags = dn->dn_id_flags; |
1481 | ASSERT(flags); | |
1482 | if (flags & DN_ID_OLD_EXIST) { | |
9b7a83cb JX |
1483 | do_userquota_update(&cache, |
1484 | dn->dn_oldused, dn->dn_oldflags, | |
1485 | dn->dn_olduid, dn->dn_oldgid, B_TRUE); | |
1486 | do_userobjquota_update(&cache, dn->dn_oldflags, | |
1487 | dn->dn_olduid, dn->dn_oldgid, B_TRUE); | |
428870ff | 1488 | } |
572e2857 | 1489 | if (flags & DN_ID_NEW_EXIST) { |
9b7a83cb JX |
1490 | do_userquota_update(&cache, |
1491 | DN_USED_BYTES(dn->dn_phys), dn->dn_phys->dn_flags, | |
1492 | dn->dn_newuid, dn->dn_newgid, B_FALSE); | |
1493 | do_userobjquota_update(&cache, dn->dn_phys->dn_flags, | |
1494 | dn->dn_newuid, dn->dn_newgid, B_FALSE); | |
428870ff BB |
1495 | } |
1496 | ||
572e2857 | 1497 | mutex_enter(&dn->dn_mtx); |
428870ff BB |
1498 | dn->dn_oldused = 0; |
1499 | dn->dn_oldflags = 0; | |
1500 | if (dn->dn_id_flags & DN_ID_NEW_EXIST) { | |
1501 | dn->dn_olduid = dn->dn_newuid; | |
1502 | dn->dn_oldgid = dn->dn_newgid; | |
1503 | dn->dn_id_flags |= DN_ID_OLD_EXIST; | |
1504 | if (dn->dn_bonuslen == 0) | |
1505 | dn->dn_id_flags |= DN_ID_CHKED_SPILL; | |
1506 | else | |
1507 | dn->dn_id_flags |= DN_ID_CHKED_BONUS; | |
1508 | } | |
1509 | dn->dn_id_flags &= ~(DN_ID_NEW_EXIST); | |
9babb374 BB |
1510 | mutex_exit(&dn->dn_mtx); |
1511 | ||
1512 | list_remove(list, dn); | |
1513 | dnode_rele(dn, list); | |
1514 | } | |
9b7a83cb | 1515 | do_userquota_cacheflush(os, &cache, tx); |
9babb374 BB |
1516 | } |
1517 | ||
428870ff BB |
1518 | /* |
1519 | * Returns a pointer to data to find uid/gid from | |
1520 | * | |
1521 | * If a dirty record for transaction group that is syncing can't | |
1522 | * be found then NULL is returned. In the NULL case it is assumed | |
1523 | * the uid/gid aren't changing. | |
1524 | */ | |
1525 | static void * | |
1526 | dmu_objset_userquota_find_data(dmu_buf_impl_t *db, dmu_tx_t *tx) | |
1527 | { | |
1528 | dbuf_dirty_record_t *dr, **drp; | |
1529 | void *data; | |
1530 | ||
1531 | if (db->db_dirtycnt == 0) | |
1532 | return (db->db.db_data); /* Nothing is changing */ | |
1533 | ||
1534 | for (drp = &db->db_last_dirty; (dr = *drp) != NULL; drp = &dr->dr_next) | |
1535 | if (dr->dr_txg == tx->tx_txg) | |
1536 | break; | |
1537 | ||
572e2857 | 1538 | if (dr == NULL) { |
428870ff | 1539 | data = NULL; |
572e2857 BB |
1540 | } else { |
1541 | dnode_t *dn; | |
1542 | ||
1543 | DB_DNODE_ENTER(dr->dr_dbuf); | |
1544 | dn = DB_DNODE(dr->dr_dbuf); | |
1545 | ||
1546 | if (dn->dn_bonuslen == 0 && | |
1547 | dr->dr_dbuf->db_blkid == DMU_SPILL_BLKID) | |
1548 | data = dr->dt.dl.dr_data->b_data; | |
1549 | else | |
1550 | data = dr->dt.dl.dr_data; | |
1551 | ||
1552 | DB_DNODE_EXIT(dr->dr_dbuf); | |
1553 | } | |
1554 | ||
428870ff BB |
1555 | return (data); |
1556 | } | |
1557 | ||
1558 | void | |
1559 | dmu_objset_userquota_get_ids(dnode_t *dn, boolean_t before, dmu_tx_t *tx) | |
1560 | { | |
1561 | objset_t *os = dn->dn_objset; | |
1562 | void *data = NULL; | |
1563 | dmu_buf_impl_t *db = NULL; | |
a117a6d6 GW |
1564 | uint64_t *user = NULL; |
1565 | uint64_t *group = NULL; | |
428870ff BB |
1566 | int flags = dn->dn_id_flags; |
1567 | int error; | |
1568 | boolean_t have_spill = B_FALSE; | |
1569 | ||
1570 | if (!dmu_objset_userused_enabled(dn->dn_objset)) | |
1571 | return; | |
1572 | ||
1573 | if (before && (flags & (DN_ID_CHKED_BONUS|DN_ID_OLD_EXIST| | |
1574 | DN_ID_CHKED_SPILL))) | |
1575 | return; | |
1576 | ||
1577 | if (before && dn->dn_bonuslen != 0) | |
1578 | data = DN_BONUS(dn->dn_phys); | |
1579 | else if (!before && dn->dn_bonuslen != 0) { | |
a3000f93 BB |
1580 | if (dn->dn_bonus) { |
1581 | db = dn->dn_bonus; | |
428870ff BB |
1582 | mutex_enter(&db->db_mtx); |
1583 | data = dmu_objset_userquota_find_data(db, tx); | |
1584 | } else { | |
1585 | data = DN_BONUS(dn->dn_phys); | |
1586 | } | |
1587 | } else if (dn->dn_bonuslen == 0 && dn->dn_bonustype == DMU_OT_SA) { | |
1588 | int rf = 0; | |
1589 | ||
1590 | if (RW_WRITE_HELD(&dn->dn_struct_rwlock)) | |
1591 | rf |= DB_RF_HAVESTRUCT; | |
572e2857 BB |
1592 | error = dmu_spill_hold_by_dnode(dn, |
1593 | rf | DB_RF_MUST_SUCCEED, | |
428870ff BB |
1594 | FTAG, (dmu_buf_t **)&db); |
1595 | ASSERT(error == 0); | |
1596 | mutex_enter(&db->db_mtx); | |
1597 | data = (before) ? db->db.db_data : | |
1598 | dmu_objset_userquota_find_data(db, tx); | |
1599 | have_spill = B_TRUE; | |
1600 | } else { | |
1601 | mutex_enter(&dn->dn_mtx); | |
1602 | dn->dn_id_flags |= DN_ID_CHKED_BONUS; | |
1603 | mutex_exit(&dn->dn_mtx); | |
1604 | return; | |
1605 | } | |
1606 | ||
1607 | if (before) { | |
1608 | ASSERT(data); | |
1609 | user = &dn->dn_olduid; | |
1610 | group = &dn->dn_oldgid; | |
1611 | } else if (data) { | |
1612 | user = &dn->dn_newuid; | |
1613 | group = &dn->dn_newgid; | |
1614 | } | |
1615 | ||
1616 | /* | |
1617 | * Must always call the callback in case the object | |
1618 | * type has changed and that type isn't an object type to track | |
1619 | */ | |
1620 | error = used_cbs[os->os_phys->os_type](dn->dn_bonustype, data, | |
1621 | user, group); | |
1622 | ||
1623 | /* | |
1624 | * Preserve existing uid/gid when the callback can't determine | |
1625 | * what the new uid/gid are and the callback returned EEXIST. | |
1626 | * The EEXIST error tells us to just use the existing uid/gid. | |
1627 | * If we don't know what the old values are then just assign | |
1628 | * them to 0, since that is a new file being created. | |
1629 | */ | |
1630 | if (!before && data == NULL && error == EEXIST) { | |
1631 | if (flags & DN_ID_OLD_EXIST) { | |
1632 | dn->dn_newuid = dn->dn_olduid; | |
1633 | dn->dn_newgid = dn->dn_oldgid; | |
1634 | } else { | |
1635 | dn->dn_newuid = 0; | |
1636 | dn->dn_newgid = 0; | |
1637 | } | |
1638 | error = 0; | |
1639 | } | |
1640 | ||
1641 | if (db) | |
1642 | mutex_exit(&db->db_mtx); | |
1643 | ||
1644 | mutex_enter(&dn->dn_mtx); | |
1645 | if (error == 0 && before) | |
1646 | dn->dn_id_flags |= DN_ID_OLD_EXIST; | |
1647 | if (error == 0 && !before) | |
1648 | dn->dn_id_flags |= DN_ID_NEW_EXIST; | |
1649 | ||
1650 | if (have_spill) { | |
1651 | dn->dn_id_flags |= DN_ID_CHKED_SPILL; | |
1652 | } else { | |
1653 | dn->dn_id_flags |= DN_ID_CHKED_BONUS; | |
1654 | } | |
1655 | mutex_exit(&dn->dn_mtx); | |
a3000f93 | 1656 | if (have_spill) |
428870ff BB |
1657 | dmu_buf_rele((dmu_buf_t *)db, FTAG); |
1658 | } | |
1659 | ||
9babb374 BB |
1660 | boolean_t |
1661 | dmu_objset_userspace_present(objset_t *os) | |
1662 | { | |
428870ff | 1663 | return (os->os_phys->os_flags & |
9babb374 BB |
1664 | OBJSET_FLAG_USERACCOUNTING_COMPLETE); |
1665 | } | |
1666 | ||
1de321e6 JX |
1667 | boolean_t |
1668 | dmu_objset_userobjspace_present(objset_t *os) | |
1669 | { | |
1670 | return (os->os_phys->os_flags & | |
1671 | OBJSET_FLAG_USEROBJACCOUNTING_COMPLETE); | |
1672 | } | |
1673 | ||
1674 | static int | |
1675 | dmu_objset_space_upgrade(objset_t *os) | |
9babb374 BB |
1676 | { |
1677 | uint64_t obj; | |
1678 | int err = 0; | |
1679 | ||
9babb374 BB |
1680 | /* |
1681 | * We simply need to mark every object dirty, so that it will be | |
1682 | * synced out and now accounted. If this is called | |
1683 | * concurrently, or if we already did some work before crashing, | |
1684 | * that's fine, since we track each object's accounted state | |
1685 | * independently. | |
1686 | */ | |
1687 | ||
1688 | for (obj = 0; err == 0; err = dmu_object_next(os, &obj, FALSE, 0)) { | |
45d1cae3 | 1689 | dmu_tx_t *tx; |
9babb374 BB |
1690 | dmu_buf_t *db; |
1691 | int objerr; | |
1692 | ||
1de321e6 JX |
1693 | mutex_enter(&os->os_upgrade_lock); |
1694 | if (os->os_upgrade_exit) | |
1695 | err = SET_ERROR(EINTR); | |
1696 | mutex_exit(&os->os_upgrade_lock); | |
1697 | if (err != 0) | |
1698 | return (err); | |
1699 | ||
9babb374 | 1700 | if (issig(JUSTLOOKING) && issig(FORREAL)) |
2e528b49 | 1701 | return (SET_ERROR(EINTR)); |
9babb374 BB |
1702 | |
1703 | objerr = dmu_bonus_hold(os, obj, FTAG, &db); | |
13fe0198 | 1704 | if (objerr != 0) |
9babb374 | 1705 | continue; |
45d1cae3 | 1706 | tx = dmu_tx_create(os); |
9babb374 BB |
1707 | dmu_tx_hold_bonus(tx, obj); |
1708 | objerr = dmu_tx_assign(tx, TXG_WAIT); | |
13fe0198 | 1709 | if (objerr != 0) { |
9babb374 BB |
1710 | dmu_tx_abort(tx); |
1711 | continue; | |
1712 | } | |
1713 | dmu_buf_will_dirty(db, tx); | |
1714 | dmu_buf_rele(db, FTAG); | |
1715 | dmu_tx_commit(tx); | |
1716 | } | |
1de321e6 JX |
1717 | return (0); |
1718 | } | |
1719 | ||
1720 | int | |
1721 | dmu_objset_userspace_upgrade(objset_t *os) | |
1722 | { | |
1723 | int err = 0; | |
1724 | ||
1725 | if (dmu_objset_userspace_present(os)) | |
1726 | return (0); | |
1727 | if (dmu_objset_is_snapshot(os)) | |
1728 | return (SET_ERROR(EINVAL)); | |
1729 | if (!dmu_objset_userused_enabled(os)) | |
1730 | return (SET_ERROR(ENOTSUP)); | |
1731 | ||
1732 | err = dmu_objset_space_upgrade(os); | |
1733 | if (err) | |
1734 | return (err); | |
9babb374 | 1735 | |
428870ff | 1736 | os->os_flags |= OBJSET_FLAG_USERACCOUNTING_COMPLETE; |
9babb374 BB |
1737 | txg_wait_synced(dmu_objset_pool(os), 0); |
1738 | return (0); | |
1739 | } | |
1740 | ||
1de321e6 JX |
1741 | static int |
1742 | dmu_objset_userobjspace_upgrade_cb(objset_t *os) | |
1743 | { | |
1744 | int err = 0; | |
1745 | ||
1746 | if (dmu_objset_userobjspace_present(os)) | |
1747 | return (0); | |
1748 | if (dmu_objset_is_snapshot(os)) | |
1749 | return (SET_ERROR(EINVAL)); | |
1750 | if (!dmu_objset_userobjused_enabled(os)) | |
1751 | return (SET_ERROR(ENOTSUP)); | |
1752 | ||
1753 | dmu_objset_ds(os)->ds_feature_activation_needed[ | |
1754 | SPA_FEATURE_USEROBJ_ACCOUNTING] = B_TRUE; | |
1755 | ||
1756 | err = dmu_objset_space_upgrade(os); | |
1757 | if (err) | |
1758 | return (err); | |
1759 | ||
1760 | os->os_flags |= OBJSET_FLAG_USEROBJACCOUNTING_COMPLETE; | |
1761 | txg_wait_synced(dmu_objset_pool(os), 0); | |
1762 | return (0); | |
1763 | } | |
1764 | ||
1765 | void | |
1766 | dmu_objset_userobjspace_upgrade(objset_t *os) | |
1767 | { | |
1768 | dmu_objset_upgrade(os, dmu_objset_userobjspace_upgrade_cb); | |
1769 | } | |
1770 | ||
34dc7c2f BB |
1771 | void |
1772 | dmu_objset_space(objset_t *os, uint64_t *refdbytesp, uint64_t *availbytesp, | |
1773 | uint64_t *usedobjsp, uint64_t *availobjsp) | |
1774 | { | |
428870ff | 1775 | dsl_dataset_space(os->os_dsl_dataset, refdbytesp, availbytesp, |
34dc7c2f BB |
1776 | usedobjsp, availobjsp); |
1777 | } | |
1778 | ||
1779 | uint64_t | |
1780 | dmu_objset_fsid_guid(objset_t *os) | |
1781 | { | |
428870ff | 1782 | return (dsl_dataset_fsid_guid(os->os_dsl_dataset)); |
34dc7c2f BB |
1783 | } |
1784 | ||
1785 | void | |
1786 | dmu_objset_fast_stat(objset_t *os, dmu_objset_stats_t *stat) | |
1787 | { | |
428870ff BB |
1788 | stat->dds_type = os->os_phys->os_type; |
1789 | if (os->os_dsl_dataset) | |
1790 | dsl_dataset_fast_stat(os->os_dsl_dataset, stat); | |
34dc7c2f BB |
1791 | } |
1792 | ||
1793 | void | |
1794 | dmu_objset_stats(objset_t *os, nvlist_t *nv) | |
1795 | { | |
428870ff BB |
1796 | ASSERT(os->os_dsl_dataset || |
1797 | os->os_phys->os_type == DMU_OST_META); | |
34dc7c2f | 1798 | |
428870ff BB |
1799 | if (os->os_dsl_dataset != NULL) |
1800 | dsl_dataset_stats(os->os_dsl_dataset, nv); | |
34dc7c2f BB |
1801 | |
1802 | dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_TYPE, | |
428870ff | 1803 | os->os_phys->os_type); |
9babb374 BB |
1804 | dsl_prop_nvlist_add_uint64(nv, ZFS_PROP_USERACCOUNTING, |
1805 | dmu_objset_userspace_present(os)); | |
34dc7c2f BB |
1806 | } |
1807 | ||
1808 | int | |
1809 | dmu_objset_is_snapshot(objset_t *os) | |
1810 | { | |
428870ff | 1811 | if (os->os_dsl_dataset != NULL) |
0c66c32d | 1812 | return (os->os_dsl_dataset->ds_is_snapshot); |
34dc7c2f BB |
1813 | else |
1814 | return (B_FALSE); | |
1815 | } | |
1816 | ||
1817 | int | |
1818 | dmu_snapshot_realname(objset_t *os, char *name, char *real, int maxlen, | |
1819 | boolean_t *conflict) | |
1820 | { | |
428870ff | 1821 | dsl_dataset_t *ds = os->os_dsl_dataset; |
34dc7c2f BB |
1822 | uint64_t ignored; |
1823 | ||
d683ddbb | 1824 | if (dsl_dataset_phys(ds)->ds_snapnames_zapobj == 0) |
2e528b49 | 1825 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
1826 | |
1827 | return (zap_lookup_norm(ds->ds_dir->dd_pool->dp_meta_objset, | |
d683ddbb JG |
1828 | dsl_dataset_phys(ds)->ds_snapnames_zapobj, name, 8, 1, &ignored, |
1829 | MT_FIRST, real, maxlen, conflict)); | |
34dc7c2f BB |
1830 | } |
1831 | ||
1832 | int | |
1833 | dmu_snapshot_list_next(objset_t *os, int namelen, char *name, | |
1834 | uint64_t *idp, uint64_t *offp, boolean_t *case_conflict) | |
1835 | { | |
428870ff | 1836 | dsl_dataset_t *ds = os->os_dsl_dataset; |
34dc7c2f BB |
1837 | zap_cursor_t cursor; |
1838 | zap_attribute_t attr; | |
1839 | ||
13fe0198 MA |
1840 | ASSERT(dsl_pool_config_held(dmu_objset_pool(os))); |
1841 | ||
d683ddbb | 1842 | if (dsl_dataset_phys(ds)->ds_snapnames_zapobj == 0) |
2e528b49 | 1843 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
1844 | |
1845 | zap_cursor_init_serialized(&cursor, | |
1846 | ds->ds_dir->dd_pool->dp_meta_objset, | |
d683ddbb | 1847 | dsl_dataset_phys(ds)->ds_snapnames_zapobj, *offp); |
34dc7c2f BB |
1848 | |
1849 | if (zap_cursor_retrieve(&cursor, &attr) != 0) { | |
1850 | zap_cursor_fini(&cursor); | |
2e528b49 | 1851 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
1852 | } |
1853 | ||
1854 | if (strlen(attr.za_name) + 1 > namelen) { | |
1855 | zap_cursor_fini(&cursor); | |
2e528b49 | 1856 | return (SET_ERROR(ENAMETOOLONG)); |
34dc7c2f BB |
1857 | } |
1858 | ||
1859 | (void) strcpy(name, attr.za_name); | |
1860 | if (idp) | |
1861 | *idp = attr.za_first_integer; | |
1862 | if (case_conflict) | |
1863 | *case_conflict = attr.za_normalization_conflict; | |
1864 | zap_cursor_advance(&cursor); | |
1865 | *offp = zap_cursor_serialize(&cursor); | |
1866 | zap_cursor_fini(&cursor); | |
1867 | ||
1868 | return (0); | |
1869 | } | |
1870 | ||
ebe7e575 | 1871 | int |
6772fb67 | 1872 | dmu_snapshot_lookup(objset_t *os, const char *name, uint64_t *value) |
ebe7e575 | 1873 | { |
d1d7e268 | 1874 | return (dsl_dataset_snap_lookup(os->os_dsl_dataset, name, value)); |
ebe7e575 BB |
1875 | } |
1876 | ||
34dc7c2f BB |
1877 | int |
1878 | dmu_dir_list_next(objset_t *os, int namelen, char *name, | |
1879 | uint64_t *idp, uint64_t *offp) | |
1880 | { | |
428870ff | 1881 | dsl_dir_t *dd = os->os_dsl_dataset->ds_dir; |
34dc7c2f BB |
1882 | zap_cursor_t cursor; |
1883 | zap_attribute_t attr; | |
1884 | ||
1885 | /* there is no next dir on a snapshot! */ | |
428870ff | 1886 | if (os->os_dsl_dataset->ds_object != |
d683ddbb | 1887 | dsl_dir_phys(dd)->dd_head_dataset_obj) |
2e528b49 | 1888 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
1889 | |
1890 | zap_cursor_init_serialized(&cursor, | |
1891 | dd->dd_pool->dp_meta_objset, | |
d683ddbb | 1892 | dsl_dir_phys(dd)->dd_child_dir_zapobj, *offp); |
34dc7c2f BB |
1893 | |
1894 | if (zap_cursor_retrieve(&cursor, &attr) != 0) { | |
1895 | zap_cursor_fini(&cursor); | |
2e528b49 | 1896 | return (SET_ERROR(ENOENT)); |
34dc7c2f BB |
1897 | } |
1898 | ||
1899 | if (strlen(attr.za_name) + 1 > namelen) { | |
1900 | zap_cursor_fini(&cursor); | |
2e528b49 | 1901 | return (SET_ERROR(ENAMETOOLONG)); |
34dc7c2f BB |
1902 | } |
1903 | ||
1904 | (void) strcpy(name, attr.za_name); | |
1905 | if (idp) | |
1906 | *idp = attr.za_first_integer; | |
1907 | zap_cursor_advance(&cursor); | |
1908 | *offp = zap_cursor_serialize(&cursor); | |
1909 | zap_cursor_fini(&cursor); | |
1910 | ||
1911 | return (0); | |
1912 | } | |
1913 | ||
9c43027b AJ |
1914 | typedef struct dmu_objset_find_ctx { |
1915 | taskq_t *dc_tq; | |
1916 | dsl_pool_t *dc_dp; | |
1917 | uint64_t dc_ddobj; | |
1918 | int (*dc_func)(dsl_pool_t *, dsl_dataset_t *, void *); | |
1919 | void *dc_arg; | |
1920 | int dc_flags; | |
1921 | kmutex_t *dc_error_lock; | |
1922 | int *dc_error; | |
1923 | } dmu_objset_find_ctx_t; | |
1924 | ||
1925 | static void | |
1926 | dmu_objset_find_dp_impl(dmu_objset_find_ctx_t *dcp) | |
b128c09f | 1927 | { |
9c43027b AJ |
1928 | dsl_pool_t *dp = dcp->dc_dp; |
1929 | dmu_objset_find_ctx_t *child_dcp; | |
13fe0198 MA |
1930 | dsl_dir_t *dd; |
1931 | dsl_dataset_t *ds; | |
1932 | zap_cursor_t zc; | |
1933 | zap_attribute_t *attr; | |
1934 | uint64_t thisobj; | |
9c43027b | 1935 | int err = 0; |
13fe0198 | 1936 | |
9c43027b AJ |
1937 | /* don't process if there already was an error */ |
1938 | if (*dcp->dc_error != 0) | |
1939 | goto out; | |
13fe0198 | 1940 | |
9c43027b | 1941 | err = dsl_dir_hold_obj(dp, dcp->dc_ddobj, NULL, FTAG, &dd); |
13fe0198 | 1942 | if (err != 0) |
9c43027b | 1943 | goto out; |
13fe0198 MA |
1944 | |
1945 | /* Don't visit hidden ($MOS & $ORIGIN) objsets. */ | |
1946 | if (dd->dd_myname[0] == '$') { | |
1947 | dsl_dir_rele(dd, FTAG); | |
9c43027b | 1948 | goto out; |
13fe0198 MA |
1949 | } |
1950 | ||
d683ddbb | 1951 | thisobj = dsl_dir_phys(dd)->dd_head_dataset_obj; |
79c76d5b | 1952 | attr = kmem_alloc(sizeof (zap_attribute_t), KM_SLEEP); |
13fe0198 MA |
1953 | |
1954 | /* | |
1955 | * Iterate over all children. | |
1956 | */ | |
9c43027b | 1957 | if (dcp->dc_flags & DS_FIND_CHILDREN) { |
13fe0198 | 1958 | for (zap_cursor_init(&zc, dp->dp_meta_objset, |
d683ddbb | 1959 | dsl_dir_phys(dd)->dd_child_dir_zapobj); |
13fe0198 MA |
1960 | zap_cursor_retrieve(&zc, attr) == 0; |
1961 | (void) zap_cursor_advance(&zc)) { | |
1962 | ASSERT3U(attr->za_integer_length, ==, | |
1963 | sizeof (uint64_t)); | |
1964 | ASSERT3U(attr->za_num_integers, ==, 1); | |
1965 | ||
9c43027b AJ |
1966 | child_dcp = kmem_alloc(sizeof (*child_dcp), KM_SLEEP); |
1967 | *child_dcp = *dcp; | |
1968 | child_dcp->dc_ddobj = attr->za_first_integer; | |
1969 | if (dcp->dc_tq != NULL) | |
1970 | (void) taskq_dispatch(dcp->dc_tq, | |
1971 | dmu_objset_find_dp_cb, child_dcp, TQ_SLEEP); | |
1972 | else | |
1973 | dmu_objset_find_dp_impl(child_dcp); | |
13fe0198 MA |
1974 | } |
1975 | zap_cursor_fini(&zc); | |
13fe0198 MA |
1976 | } |
1977 | ||
1978 | /* | |
1979 | * Iterate over all snapshots. | |
1980 | */ | |
9c43027b | 1981 | if (dcp->dc_flags & DS_FIND_SNAPSHOTS) { |
13fe0198 MA |
1982 | dsl_dataset_t *ds; |
1983 | err = dsl_dataset_hold_obj(dp, thisobj, FTAG, &ds); | |
1984 | ||
1985 | if (err == 0) { | |
d683ddbb JG |
1986 | uint64_t snapobj; |
1987 | ||
1988 | snapobj = dsl_dataset_phys(ds)->ds_snapnames_zapobj; | |
13fe0198 MA |
1989 | dsl_dataset_rele(ds, FTAG); |
1990 | ||
1991 | for (zap_cursor_init(&zc, dp->dp_meta_objset, snapobj); | |
1992 | zap_cursor_retrieve(&zc, attr) == 0; | |
1993 | (void) zap_cursor_advance(&zc)) { | |
1994 | ASSERT3U(attr->za_integer_length, ==, | |
1995 | sizeof (uint64_t)); | |
1996 | ASSERT3U(attr->za_num_integers, ==, 1); | |
1997 | ||
1998 | err = dsl_dataset_hold_obj(dp, | |
1999 | attr->za_first_integer, FTAG, &ds); | |
2000 | if (err != 0) | |
2001 | break; | |
9c43027b | 2002 | err = dcp->dc_func(dp, ds, dcp->dc_arg); |
13fe0198 MA |
2003 | dsl_dataset_rele(ds, FTAG); |
2004 | if (err != 0) | |
2005 | break; | |
2006 | } | |
2007 | zap_cursor_fini(&zc); | |
2008 | } | |
2009 | } | |
2010 | ||
2011 | dsl_dir_rele(dd, FTAG); | |
2012 | kmem_free(attr, sizeof (zap_attribute_t)); | |
2013 | ||
2014 | if (err != 0) | |
9c43027b | 2015 | goto out; |
13fe0198 MA |
2016 | |
2017 | /* | |
2018 | * Apply to self. | |
2019 | */ | |
2020 | err = dsl_dataset_hold_obj(dp, thisobj, FTAG, &ds); | |
2021 | if (err != 0) | |
9c43027b AJ |
2022 | goto out; |
2023 | err = dcp->dc_func(dp, ds, dcp->dc_arg); | |
13fe0198 | 2024 | dsl_dataset_rele(ds, FTAG); |
9c43027b AJ |
2025 | |
2026 | out: | |
2027 | if (err != 0) { | |
2028 | mutex_enter(dcp->dc_error_lock); | |
2029 | /* only keep first error */ | |
2030 | if (*dcp->dc_error == 0) | |
2031 | *dcp->dc_error = err; | |
2032 | mutex_exit(dcp->dc_error_lock); | |
2033 | } | |
2034 | ||
2035 | kmem_free(dcp, sizeof (*dcp)); | |
2036 | } | |
2037 | ||
2038 | static void | |
2039 | dmu_objset_find_dp_cb(void *arg) | |
2040 | { | |
2041 | dmu_objset_find_ctx_t *dcp = arg; | |
2042 | dsl_pool_t *dp = dcp->dc_dp; | |
2043 | ||
5e8cd5d1 AJ |
2044 | /* |
2045 | * We need to get a pool_config_lock here, as there are several | |
2046 | * asssert(pool_config_held) down the stack. Getting a lock via | |
2047 | * dsl_pool_config_enter is risky, as it might be stalled by a | |
2048 | * pending writer. This would deadlock, as the write lock can | |
2049 | * only be granted when our parent thread gives up the lock. | |
2050 | * The _prio interface gives us priority over a pending writer. | |
2051 | */ | |
2052 | dsl_pool_config_enter_prio(dp, FTAG); | |
9c43027b AJ |
2053 | |
2054 | dmu_objset_find_dp_impl(dcp); | |
2055 | ||
2056 | dsl_pool_config_exit(dp, FTAG); | |
2057 | } | |
2058 | ||
2059 | /* | |
2060 | * Find objsets under and including ddobj, call func(ds) on each. | |
2061 | * The order for the enumeration is completely undefined. | |
2062 | * func is called with dsl_pool_config held. | |
2063 | */ | |
2064 | int | |
2065 | dmu_objset_find_dp(dsl_pool_t *dp, uint64_t ddobj, | |
2066 | int func(dsl_pool_t *, dsl_dataset_t *, void *), void *arg, int flags) | |
2067 | { | |
2068 | int error = 0; | |
2069 | taskq_t *tq = NULL; | |
2070 | int ntasks; | |
2071 | dmu_objset_find_ctx_t *dcp; | |
2072 | kmutex_t err_lock; | |
2073 | ||
2074 | mutex_init(&err_lock, NULL, MUTEX_DEFAULT, NULL); | |
2075 | dcp = kmem_alloc(sizeof (*dcp), KM_SLEEP); | |
2076 | dcp->dc_tq = NULL; | |
2077 | dcp->dc_dp = dp; | |
2078 | dcp->dc_ddobj = ddobj; | |
2079 | dcp->dc_func = func; | |
2080 | dcp->dc_arg = arg; | |
2081 | dcp->dc_flags = flags; | |
2082 | dcp->dc_error_lock = &err_lock; | |
2083 | dcp->dc_error = &error; | |
2084 | ||
2085 | if ((flags & DS_FIND_SERIALIZE) || dsl_pool_config_held_writer(dp)) { | |
2086 | /* | |
2087 | * In case a write lock is held we can't make use of | |
2088 | * parallelism, as down the stack of the worker threads | |
2089 | * the lock is asserted via dsl_pool_config_held. | |
2090 | * In case of a read lock this is solved by getting a read | |
2091 | * lock in each worker thread, which isn't possible in case | |
2092 | * of a writer lock. So we fall back to the synchronous path | |
2093 | * here. | |
2094 | * In the future it might be possible to get some magic into | |
2095 | * dsl_pool_config_held in a way that it returns true for | |
2096 | * the worker threads so that a single lock held from this | |
2097 | * thread suffices. For now, stay single threaded. | |
2098 | */ | |
2099 | dmu_objset_find_dp_impl(dcp); | |
e5676636 | 2100 | mutex_destroy(&err_lock); |
9c43027b AJ |
2101 | |
2102 | return (error); | |
2103 | } | |
2104 | ||
2105 | ntasks = dmu_find_threads; | |
2106 | if (ntasks == 0) | |
2107 | ntasks = vdev_count_leaves(dp->dp_spa) * 4; | |
1229323d | 2108 | tq = taskq_create("dmu_objset_find", ntasks, maxclsyspri, ntasks, |
9c43027b AJ |
2109 | INT_MAX, 0); |
2110 | if (tq == NULL) { | |
2111 | kmem_free(dcp, sizeof (*dcp)); | |
e5676636 BB |
2112 | mutex_destroy(&err_lock); |
2113 | ||
9c43027b AJ |
2114 | return (SET_ERROR(ENOMEM)); |
2115 | } | |
2116 | dcp->dc_tq = tq; | |
2117 | ||
2118 | /* dcp will be freed by task */ | |
2119 | (void) taskq_dispatch(tq, dmu_objset_find_dp_cb, dcp, TQ_SLEEP); | |
2120 | ||
2121 | /* | |
2122 | * PORTING: this code relies on the property of taskq_wait to wait | |
2123 | * until no more tasks are queued and no more tasks are active. As | |
2124 | * we always queue new tasks from within other tasks, task_wait | |
2125 | * reliably waits for the full recursion to finish, even though we | |
2126 | * enqueue new tasks after taskq_wait has been called. | |
2127 | * On platforms other than illumos, taskq_wait may not have this | |
2128 | * property. | |
2129 | */ | |
2130 | taskq_wait(tq); | |
2131 | taskq_destroy(tq); | |
2132 | mutex_destroy(&err_lock); | |
2133 | ||
2134 | return (error); | |
b128c09f BB |
2135 | } |
2136 | ||
2137 | /* | |
13fe0198 MA |
2138 | * Find all objsets under name, and for each, call 'func(child_name, arg)'. |
2139 | * The dp_config_rwlock must not be held when this is called, and it | |
2140 | * will not be held when the callback is called. | |
2141 | * Therefore this function should only be used when the pool is not changing | |
2142 | * (e.g. in syncing context), or the callback can deal with the possible races. | |
b128c09f | 2143 | */ |
13fe0198 MA |
2144 | static int |
2145 | dmu_objset_find_impl(spa_t *spa, const char *name, | |
2146 | int func(const char *, void *), void *arg, int flags) | |
34dc7c2f BB |
2147 | { |
2148 | dsl_dir_t *dd; | |
13fe0198 | 2149 | dsl_pool_t *dp = spa_get_dsl(spa); |
b128c09f | 2150 | dsl_dataset_t *ds; |
34dc7c2f BB |
2151 | zap_cursor_t zc; |
2152 | zap_attribute_t *attr; | |
2153 | char *child; | |
b128c09f BB |
2154 | uint64_t thisobj; |
2155 | int err; | |
34dc7c2f | 2156 | |
13fe0198 MA |
2157 | dsl_pool_config_enter(dp, FTAG); |
2158 | ||
2159 | err = dsl_dir_hold(dp, name, FTAG, &dd, NULL); | |
2160 | if (err != 0) { | |
2161 | dsl_pool_config_exit(dp, FTAG); | |
34dc7c2f | 2162 | return (err); |
13fe0198 | 2163 | } |
34dc7c2f | 2164 | |
b128c09f BB |
2165 | /* Don't visit hidden ($MOS & $ORIGIN) objsets. */ |
2166 | if (dd->dd_myname[0] == '$') { | |
13fe0198 MA |
2167 | dsl_dir_rele(dd, FTAG); |
2168 | dsl_pool_config_exit(dp, FTAG); | |
b128c09f BB |
2169 | return (0); |
2170 | } | |
2171 | ||
d683ddbb | 2172 | thisobj = dsl_dir_phys(dd)->dd_head_dataset_obj; |
79c76d5b | 2173 | attr = kmem_alloc(sizeof (zap_attribute_t), KM_SLEEP); |
34dc7c2f BB |
2174 | |
2175 | /* | |
2176 | * Iterate over all children. | |
2177 | */ | |
2178 | if (flags & DS_FIND_CHILDREN) { | |
b128c09f | 2179 | for (zap_cursor_init(&zc, dp->dp_meta_objset, |
d683ddbb | 2180 | dsl_dir_phys(dd)->dd_child_dir_zapobj); |
34dc7c2f BB |
2181 | zap_cursor_retrieve(&zc, attr) == 0; |
2182 | (void) zap_cursor_advance(&zc)) { | |
13fe0198 MA |
2183 | ASSERT3U(attr->za_integer_length, ==, |
2184 | sizeof (uint64_t)); | |
2185 | ASSERT3U(attr->za_num_integers, ==, 1); | |
34dc7c2f | 2186 | |
428870ff | 2187 | child = kmem_asprintf("%s/%s", name, attr->za_name); |
13fe0198 MA |
2188 | dsl_pool_config_exit(dp, FTAG); |
2189 | err = dmu_objset_find_impl(spa, child, | |
2190 | func, arg, flags); | |
2191 | dsl_pool_config_enter(dp, FTAG); | |
428870ff | 2192 | strfree(child); |
13fe0198 | 2193 | if (err != 0) |
34dc7c2f BB |
2194 | break; |
2195 | } | |
2196 | zap_cursor_fini(&zc); | |
2197 | ||
13fe0198 MA |
2198 | if (err != 0) { |
2199 | dsl_dir_rele(dd, FTAG); | |
2200 | dsl_pool_config_exit(dp, FTAG); | |
34dc7c2f BB |
2201 | kmem_free(attr, sizeof (zap_attribute_t)); |
2202 | return (err); | |
2203 | } | |
2204 | } | |
2205 | ||
2206 | /* | |
2207 | * Iterate over all snapshots. | |
2208 | */ | |
b128c09f | 2209 | if (flags & DS_FIND_SNAPSHOTS) { |
b128c09f | 2210 | err = dsl_dataset_hold_obj(dp, thisobj, FTAG, &ds); |
b128c09f BB |
2211 | |
2212 | if (err == 0) { | |
d683ddbb JG |
2213 | uint64_t snapobj; |
2214 | ||
2215 | snapobj = dsl_dataset_phys(ds)->ds_snapnames_zapobj; | |
b128c09f BB |
2216 | dsl_dataset_rele(ds, FTAG); |
2217 | ||
2218 | for (zap_cursor_init(&zc, dp->dp_meta_objset, snapobj); | |
2219 | zap_cursor_retrieve(&zc, attr) == 0; | |
2220 | (void) zap_cursor_advance(&zc)) { | |
13fe0198 | 2221 | ASSERT3U(attr->za_integer_length, ==, |
b128c09f | 2222 | sizeof (uint64_t)); |
13fe0198 | 2223 | ASSERT3U(attr->za_num_integers, ==, 1); |
b128c09f | 2224 | |
428870ff BB |
2225 | child = kmem_asprintf("%s@%s", |
2226 | name, attr->za_name); | |
13fe0198 MA |
2227 | dsl_pool_config_exit(dp, FTAG); |
2228 | err = func(child, arg); | |
2229 | dsl_pool_config_enter(dp, FTAG); | |
428870ff | 2230 | strfree(child); |
13fe0198 | 2231 | if (err != 0) |
b128c09f BB |
2232 | break; |
2233 | } | |
2234 | zap_cursor_fini(&zc); | |
34dc7c2f | 2235 | } |
34dc7c2f BB |
2236 | } |
2237 | ||
13fe0198 | 2238 | dsl_dir_rele(dd, FTAG); |
34dc7c2f | 2239 | kmem_free(attr, sizeof (zap_attribute_t)); |
13fe0198 | 2240 | dsl_pool_config_exit(dp, FTAG); |
34dc7c2f | 2241 | |
13fe0198 | 2242 | if (err != 0) |
34dc7c2f BB |
2243 | return (err); |
2244 | ||
13fe0198 MA |
2245 | /* Apply to self. */ |
2246 | return (func(name, arg)); | |
34dc7c2f BB |
2247 | } |
2248 | ||
13fe0198 MA |
2249 | /* |
2250 | * See comment above dmu_objset_find_impl(). | |
2251 | */ | |
d164b209 | 2252 | int |
13fe0198 MA |
2253 | dmu_objset_find(char *name, int func(const char *, void *), void *arg, |
2254 | int flags) | |
d164b209 | 2255 | { |
13fe0198 MA |
2256 | spa_t *spa; |
2257 | int error; | |
d164b209 | 2258 | |
13fe0198 MA |
2259 | error = spa_open(name, &spa, FTAG); |
2260 | if (error != 0) | |
2261 | return (error); | |
2262 | error = dmu_objset_find_impl(spa, name, func, arg, flags); | |
2263 | spa_close(spa, FTAG); | |
2264 | return (error); | |
d164b209 BB |
2265 | } |
2266 | ||
34dc7c2f BB |
2267 | void |
2268 | dmu_objset_set_user(objset_t *os, void *user_ptr) | |
2269 | { | |
428870ff BB |
2270 | ASSERT(MUTEX_HELD(&os->os_user_ptr_lock)); |
2271 | os->os_user_ptr = user_ptr; | |
34dc7c2f BB |
2272 | } |
2273 | ||
2274 | void * | |
2275 | dmu_objset_get_user(objset_t *os) | |
2276 | { | |
428870ff BB |
2277 | ASSERT(MUTEX_HELD(&os->os_user_ptr_lock)); |
2278 | return (os->os_user_ptr); | |
34dc7c2f | 2279 | } |
c28b2279 | 2280 | |
13fe0198 MA |
2281 | /* |
2282 | * Determine name of filesystem, given name of snapshot. | |
eca7b760 | 2283 | * buf must be at least ZFS_MAX_DATASET_NAME_LEN bytes |
13fe0198 MA |
2284 | */ |
2285 | int | |
2286 | dmu_fsname(const char *snapname, char *buf) | |
2287 | { | |
2288 | char *atp = strchr(snapname, '@'); | |
2289 | if (atp == NULL) | |
2e528b49 | 2290 | return (SET_ERROR(EINVAL)); |
eca7b760 | 2291 | if (atp - snapname >= ZFS_MAX_DATASET_NAME_LEN) |
2e528b49 | 2292 | return (SET_ERROR(ENAMETOOLONG)); |
13fe0198 MA |
2293 | (void) strlcpy(buf, snapname, atp - snapname + 1); |
2294 | return (0); | |
2295 | } | |
2296 | ||
c28b2279 | 2297 | #if defined(_KERNEL) && defined(HAVE_SPL) |
f0fd83be | 2298 | EXPORT_SYMBOL(dmu_objset_zil); |
c28b2279 | 2299 | EXPORT_SYMBOL(dmu_objset_pool); |
f0fd83be BB |
2300 | EXPORT_SYMBOL(dmu_objset_ds); |
2301 | EXPORT_SYMBOL(dmu_objset_type); | |
c28b2279 BB |
2302 | EXPORT_SYMBOL(dmu_objset_name); |
2303 | EXPORT_SYMBOL(dmu_objset_hold); | |
2304 | EXPORT_SYMBOL(dmu_objset_own); | |
2305 | EXPORT_SYMBOL(dmu_objset_rele); | |
2306 | EXPORT_SYMBOL(dmu_objset_disown); | |
2307 | EXPORT_SYMBOL(dmu_objset_from_ds); | |
2308 | EXPORT_SYMBOL(dmu_objset_create); | |
2309 | EXPORT_SYMBOL(dmu_objset_clone); | |
c28b2279 BB |
2310 | EXPORT_SYMBOL(dmu_objset_stats); |
2311 | EXPORT_SYMBOL(dmu_objset_fast_stat); | |
54a179e7 | 2312 | EXPORT_SYMBOL(dmu_objset_spa); |
c28b2279 BB |
2313 | EXPORT_SYMBOL(dmu_objset_space); |
2314 | EXPORT_SYMBOL(dmu_objset_fsid_guid); | |
2315 | EXPORT_SYMBOL(dmu_objset_find); | |
c28b2279 BB |
2316 | EXPORT_SYMBOL(dmu_objset_byteswap); |
2317 | EXPORT_SYMBOL(dmu_objset_evict_dbufs); | |
2318 | EXPORT_SYMBOL(dmu_objset_snap_cmtime); | |
50c957f7 | 2319 | EXPORT_SYMBOL(dmu_objset_dnodesize); |
c28b2279 BB |
2320 | |
2321 | EXPORT_SYMBOL(dmu_objset_sync); | |
2322 | EXPORT_SYMBOL(dmu_objset_is_dirty); | |
2323 | EXPORT_SYMBOL(dmu_objset_create_impl); | |
2324 | EXPORT_SYMBOL(dmu_objset_open_impl); | |
2325 | EXPORT_SYMBOL(dmu_objset_evict); | |
2326 | EXPORT_SYMBOL(dmu_objset_register_type); | |
2327 | EXPORT_SYMBOL(dmu_objset_do_userquota_updates); | |
2328 | EXPORT_SYMBOL(dmu_objset_userquota_get_ids); | |
2329 | EXPORT_SYMBOL(dmu_objset_userused_enabled); | |
2330 | EXPORT_SYMBOL(dmu_objset_userspace_upgrade); | |
2331 | EXPORT_SYMBOL(dmu_objset_userspace_present); | |
1de321e6 JX |
2332 | EXPORT_SYMBOL(dmu_objset_userobjused_enabled); |
2333 | EXPORT_SYMBOL(dmu_objset_userobjspace_upgrade); | |
2334 | EXPORT_SYMBOL(dmu_objset_userobjspace_present); | |
c28b2279 | 2335 | #endif |