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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 https://opensource.org/licenses/CDDL-1.0. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | /* | |
22 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. | |
23 | * Copyright (c) 2011, 2018 by Delphix. All rights reserved. | |
24 | * Copyright (c) 2013 Steven Hartland. All rights reserved. | |
25 | * Copyright (c) 2014 Spectra Logic Corporation, All rights reserved. | |
26 | */ | |
27 | ||
28 | #ifndef _SYS_DSL_DATASET_H | |
29 | #define _SYS_DSL_DATASET_H | |
30 | ||
31 | #include <sys/dmu.h> | |
32 | #include <sys/spa.h> | |
33 | #include <sys/txg.h> | |
34 | #include <sys/zio.h> | |
35 | #include <sys/bplist.h> | |
36 | #include <sys/dsl_synctask.h> | |
37 | #include <sys/zfs_context.h> | |
38 | #include <sys/dsl_deadlist.h> | |
39 | #include <sys/zfs_refcount.h> | |
40 | #include <sys/rrwlock.h> | |
41 | #include <sys/dsl_crypt.h> | |
42 | #include <zfeature_common.h> | |
43 | ||
44 | #ifdef __cplusplus | |
45 | extern "C" { | |
46 | #endif | |
47 | ||
48 | struct dsl_dataset; | |
49 | struct dsl_dir; | |
50 | struct dsl_pool; | |
51 | struct dsl_crypto_params; | |
52 | struct dsl_key_mapping; | |
53 | struct zfs_bookmark_phys; | |
54 | ||
55 | #define DS_FLAG_INCONSISTENT (1ULL<<0) | |
56 | #define DS_IS_INCONSISTENT(ds) \ | |
57 | (dsl_dataset_phys(ds)->ds_flags & DS_FLAG_INCONSISTENT) | |
58 | ||
59 | /* | |
60 | * Do not allow this dataset to be promoted. | |
61 | */ | |
62 | #define DS_FLAG_NOPROMOTE (1ULL<<1) | |
63 | ||
64 | /* | |
65 | * DS_FLAG_UNIQUE_ACCURATE is set if ds_unique_bytes has been correctly | |
66 | * calculated for head datasets (starting with SPA_VERSION_UNIQUE_ACCURATE, | |
67 | * refquota/refreservations). | |
68 | */ | |
69 | #define DS_FLAG_UNIQUE_ACCURATE (1ULL<<2) | |
70 | ||
71 | /* | |
72 | * DS_FLAG_DEFER_DESTROY is set after 'zfs destroy -d' has been called | |
73 | * on a dataset. This allows the dataset to be destroyed using 'zfs release'. | |
74 | */ | |
75 | #define DS_FLAG_DEFER_DESTROY (1ULL<<3) | |
76 | #define DS_IS_DEFER_DESTROY(ds) \ | |
77 | (dsl_dataset_phys(ds)->ds_flags & DS_FLAG_DEFER_DESTROY) | |
78 | ||
79 | /* | |
80 | * DS_FIELD_* are strings that are used in the "extensified" dataset zap object. | |
81 | * They should be of the format <reverse-dns>:<field>. | |
82 | */ | |
83 | ||
84 | /* | |
85 | * This field's value is the object ID of a zap object which contains the | |
86 | * bookmarks of this dataset. If it is present, then this dataset is counted | |
87 | * in the refcount of the SPA_FEATURES_BOOKMARKS feature. | |
88 | */ | |
89 | #define DS_FIELD_BOOKMARK_NAMES "com.delphix:bookmarks" | |
90 | ||
91 | /* | |
92 | * This field is present (with value=0) if this dataset may contain large | |
93 | * dnodes (>512B). If it is present, then this dataset is counted in the | |
94 | * refcount of the SPA_FEATURE_LARGE_DNODE feature. | |
95 | */ | |
96 | #define DS_FIELD_LARGE_DNODE "org.zfsonlinux:large_dnode" | |
97 | ||
98 | /* | |
99 | * These fields are set on datasets that are in the middle of a resumable | |
100 | * receive, and allow the sender to resume the send if it is interrupted. | |
101 | */ | |
102 | #define DS_FIELD_RESUME_FROMGUID "com.delphix:resume_fromguid" | |
103 | #define DS_FIELD_RESUME_TONAME "com.delphix:resume_toname" | |
104 | #define DS_FIELD_RESUME_TOGUID "com.delphix:resume_toguid" | |
105 | #define DS_FIELD_RESUME_OBJECT "com.delphix:resume_object" | |
106 | #define DS_FIELD_RESUME_OFFSET "com.delphix:resume_offset" | |
107 | #define DS_FIELD_RESUME_BYTES "com.delphix:resume_bytes" | |
108 | #define DS_FIELD_RESUME_LARGEBLOCK "com.delphix:resume_largeblockok" | |
109 | #define DS_FIELD_RESUME_EMBEDOK "com.delphix:resume_embedok" | |
110 | #define DS_FIELD_RESUME_COMPRESSOK "com.delphix:resume_compressok" | |
111 | #define DS_FIELD_RESUME_RAWOK "com.datto:resume_rawok" | |
112 | ||
113 | /* | |
114 | * This field is set to the object number of the remap deadlist if one exists. | |
115 | */ | |
116 | #define DS_FIELD_REMAP_DEADLIST "com.delphix:remap_deadlist" | |
117 | ||
118 | /* | |
119 | * We were receiving an incremental from a redaction bookmark, and these are the | |
120 | * guids of its snapshots. | |
121 | */ | |
122 | #define DS_FIELD_RESUME_REDACT_BOOKMARK_SNAPS \ | |
123 | "com.delphix:resume_redact_book_snaps" | |
124 | ||
125 | /* | |
126 | * This field is set to the ivset guid for encrypted snapshots. This is used | |
127 | * for validating raw receives. | |
128 | */ | |
129 | #define DS_FIELD_IVSET_GUID "com.datto:ivset_guid" | |
130 | ||
131 | /* | |
132 | * DS_FLAG_CI_DATASET is set if the dataset contains a file system whose | |
133 | * name lookups should be performed case-insensitively. | |
134 | */ | |
135 | #define DS_FLAG_CI_DATASET (1ULL<<16) | |
136 | ||
137 | #define DS_CREATE_FLAG_NODIRTY (1ULL<<24) | |
138 | ||
139 | typedef struct dsl_dataset_phys { | |
140 | uint64_t ds_dir_obj; /* DMU_OT_DSL_DIR */ | |
141 | uint64_t ds_prev_snap_obj; /* DMU_OT_DSL_DATASET */ | |
142 | uint64_t ds_prev_snap_txg; | |
143 | uint64_t ds_next_snap_obj; /* DMU_OT_DSL_DATASET */ | |
144 | uint64_t ds_snapnames_zapobj; /* DMU_OT_DSL_DS_SNAP_MAP 0 for snaps */ | |
145 | uint64_t ds_num_children; /* clone/snap children; ==0 for head */ | |
146 | uint64_t ds_creation_time; /* seconds since 1970 */ | |
147 | uint64_t ds_creation_txg; | |
148 | uint64_t ds_deadlist_obj; /* DMU_OT_DEADLIST */ | |
149 | /* | |
150 | * ds_referenced_bytes, ds_compressed_bytes, and ds_uncompressed_bytes | |
151 | * include all blocks referenced by this dataset, including those | |
152 | * shared with any other datasets. | |
153 | */ | |
154 | uint64_t ds_referenced_bytes; | |
155 | uint64_t ds_compressed_bytes; | |
156 | uint64_t ds_uncompressed_bytes; | |
157 | uint64_t ds_unique_bytes; /* only relevant to snapshots */ | |
158 | /* | |
159 | * The ds_fsid_guid is a 56-bit ID that can change to avoid | |
160 | * collisions. The ds_guid is a 64-bit ID that will never | |
161 | * change, so there is a small probability that it will collide. | |
162 | */ | |
163 | uint64_t ds_fsid_guid; | |
164 | uint64_t ds_guid; | |
165 | uint64_t ds_flags; /* DS_FLAG_* */ | |
166 | blkptr_t ds_bp; | |
167 | uint64_t ds_next_clones_obj; /* DMU_OT_DSL_CLONES */ | |
168 | uint64_t ds_props_obj; /* DMU_OT_DSL_PROPS for snaps */ | |
169 | uint64_t ds_userrefs_obj; /* DMU_OT_USERREFS */ | |
170 | uint64_t ds_pad[5]; /* pad out to 320 bytes for good measure */ | |
171 | } dsl_dataset_phys_t; | |
172 | ||
173 | typedef struct dsl_dataset { | |
174 | dmu_buf_user_t ds_dbu; | |
175 | rrwlock_t ds_bp_rwlock; /* Protects ds_phys->ds_bp */ | |
176 | ||
177 | /* Immutable: */ | |
178 | struct dsl_dir *ds_dir; | |
179 | dmu_buf_t *ds_dbuf; | |
180 | uint64_t ds_object; | |
181 | uint64_t ds_fsid_guid; | |
182 | boolean_t ds_is_snapshot; | |
183 | struct dsl_key_mapping *ds_key_mapping; | |
184 | ||
185 | /* only used in syncing context, only valid for non-snapshots: */ | |
186 | struct dsl_dataset *ds_prev; | |
187 | uint64_t ds_bookmarks_obj; /* DMU_OTN_ZAP_METADATA */ | |
188 | avl_tree_t ds_bookmarks; /* dsl_bookmark_node_t */ | |
189 | ||
190 | /* has internal locking: */ | |
191 | dsl_deadlist_t ds_deadlist; | |
192 | bplist_t ds_pending_deadlist; | |
193 | ||
194 | /* | |
195 | * The remap deadlist contains blocks (DVA's, really) that are | |
196 | * referenced by the previous snapshot and point to indirect vdevs, | |
197 | * but in this dataset they have been remapped to point to concrete | |
198 | * (or at least, less-indirect) vdevs. In other words, the | |
199 | * physical DVA is referenced by the previous snapshot but not by | |
200 | * this dataset. Logically, the DVA continues to be referenced, | |
201 | * but we are using a different (less indirect) physical DVA. | |
202 | * This deadlist is used to determine when physical DVAs that | |
203 | * point to indirect vdevs are no longer referenced anywhere, | |
204 | * and thus should be marked obsolete. | |
205 | * | |
206 | * This is only used if SPA_FEATURE_OBSOLETE_COUNTS is enabled. | |
207 | */ | |
208 | dsl_deadlist_t ds_remap_deadlist; | |
209 | /* protects creation of the ds_remap_deadlist */ | |
210 | kmutex_t ds_remap_deadlist_lock; | |
211 | ||
212 | /* protected by lock on pool's dp_dirty_datasets list */ | |
213 | txg_node_t ds_dirty_link; | |
214 | list_node_t ds_synced_link; | |
215 | ||
216 | /* | |
217 | * ds_phys->ds_<accounting> is also protected by ds_lock. | |
218 | * Protected by ds_lock: | |
219 | */ | |
220 | kmutex_t ds_lock; | |
221 | objset_t *ds_objset; | |
222 | uint64_t ds_userrefs; | |
223 | const void *ds_owner; | |
224 | ||
225 | /* | |
226 | * Long holds prevent the ds from being destroyed; they allow the | |
227 | * ds to remain held even after dropping the dp_config_rwlock. | |
228 | * Owning counts as a long hold. See the comments above | |
229 | * dsl_pool_hold() for details. | |
230 | */ | |
231 | zfs_refcount_t ds_longholds; | |
232 | ||
233 | /* no locking; only for making guesses */ | |
234 | uint64_t ds_trysnap_txg; | |
235 | ||
236 | /* for objset_open() */ | |
237 | kmutex_t ds_opening_lock; | |
238 | ||
239 | uint64_t ds_reserved; /* cached refreservation */ | |
240 | uint64_t ds_quota; /* cached refquota */ | |
241 | ||
242 | kmutex_t ds_sendstream_lock; | |
243 | list_t ds_sendstreams; | |
244 | ||
245 | /* | |
246 | * When in the middle of a resumable receive, tracks how much | |
247 | * progress we have made. | |
248 | */ | |
249 | uint64_t ds_resume_object[TXG_SIZE]; | |
250 | uint64_t ds_resume_offset[TXG_SIZE]; | |
251 | uint64_t ds_resume_bytes[TXG_SIZE]; | |
252 | ||
253 | /* Protected by our dsl_dir's dd_lock */ | |
254 | list_t ds_prop_cbs; | |
255 | ||
256 | /* | |
257 | * For ZFEATURE_FLAG_PER_DATASET features, set if this dataset | |
258 | * uses this feature. | |
259 | */ | |
260 | void *ds_feature[SPA_FEATURES]; | |
261 | ||
262 | /* | |
263 | * Set if we need to activate the feature on this dataset this txg | |
264 | * (used only in syncing context). | |
265 | */ | |
266 | void *ds_feature_activation[SPA_FEATURES]; | |
267 | ||
268 | /* Protected by ds_lock; keep at end of struct for better locality */ | |
269 | char ds_snapname[ZFS_MAX_DATASET_NAME_LEN]; | |
270 | } dsl_dataset_t; | |
271 | ||
272 | static inline dsl_dataset_phys_t * | |
273 | dsl_dataset_phys(dsl_dataset_t *ds) | |
274 | { | |
275 | return ((dsl_dataset_phys_t *)ds->ds_dbuf->db_data); | |
276 | } | |
277 | ||
278 | typedef struct dsl_dataset_promote_arg { | |
279 | const char *ddpa_clonename; | |
280 | dsl_dataset_t *ddpa_clone; | |
281 | list_t shared_snaps, origin_snaps, clone_snaps; | |
282 | dsl_dataset_t *origin_origin; /* origin of the origin */ | |
283 | uint64_t used, comp, uncomp, unique, cloneusedsnap, originusedsnap; | |
284 | nvlist_t *err_ds; | |
285 | cred_t *cr; | |
286 | proc_t *proc; | |
287 | } dsl_dataset_promote_arg_t; | |
288 | ||
289 | typedef struct dsl_dataset_rollback_arg { | |
290 | const char *ddra_fsname; | |
291 | const char *ddra_tosnap; | |
292 | void *ddra_owner; | |
293 | nvlist_t *ddra_result; | |
294 | } dsl_dataset_rollback_arg_t; | |
295 | ||
296 | typedef struct dsl_dataset_snapshot_arg { | |
297 | nvlist_t *ddsa_snaps; | |
298 | nvlist_t *ddsa_props; | |
299 | nvlist_t *ddsa_errors; | |
300 | cred_t *ddsa_cr; | |
301 | proc_t *ddsa_proc; | |
302 | } dsl_dataset_snapshot_arg_t; | |
303 | ||
304 | typedef struct dsl_dataset_rename_snapshot_arg { | |
305 | const char *ddrsa_fsname; | |
306 | const char *ddrsa_oldsnapname; | |
307 | const char *ddrsa_newsnapname; | |
308 | boolean_t ddrsa_recursive; | |
309 | dmu_tx_t *ddrsa_tx; | |
310 | } dsl_dataset_rename_snapshot_arg_t; | |
311 | ||
312 | /* | |
313 | * The max length of a temporary tag prefix is the number of hex digits | |
314 | * required to express UINT64_MAX plus one for the hyphen. | |
315 | */ | |
316 | #define MAX_TAG_PREFIX_LEN 17 | |
317 | ||
318 | #define dsl_dataset_is_snapshot(ds) \ | |
319 | (dsl_dataset_phys(ds)->ds_num_children != 0) | |
320 | ||
321 | #define DS_UNIQUE_IS_ACCURATE(ds) \ | |
322 | ((dsl_dataset_phys(ds)->ds_flags & DS_FLAG_UNIQUE_ACCURATE) != 0) | |
323 | ||
324 | /* flags for holding the dataset */ | |
325 | typedef enum ds_hold_flags { | |
326 | DS_HOLD_FLAG_NONE = 0 << 0, | |
327 | DS_HOLD_FLAG_DECRYPT = 1 << 0 /* needs access to encrypted data */ | |
328 | } ds_hold_flags_t; | |
329 | ||
330 | int dsl_dataset_hold(struct dsl_pool *dp, const char *name, const void *tag, | |
331 | dsl_dataset_t **dsp); | |
332 | int dsl_dataset_hold_flags(struct dsl_pool *dp, const char *name, | |
333 | ds_hold_flags_t flags, const void *tag, dsl_dataset_t **dsp); | |
334 | boolean_t dsl_dataset_try_add_ref(struct dsl_pool *dp, dsl_dataset_t *ds, | |
335 | const void *tag); | |
336 | int dsl_dataset_create_key_mapping(dsl_dataset_t *ds); | |
337 | int dsl_dataset_hold_obj_flags(struct dsl_pool *dp, uint64_t dsobj, | |
338 | ds_hold_flags_t flags, const void *tag, dsl_dataset_t **); | |
339 | void dsl_dataset_remove_key_mapping(dsl_dataset_t *ds); | |
340 | int dsl_dataset_hold_obj(struct dsl_pool *dp, uint64_t dsobj, | |
341 | const void *tag, dsl_dataset_t **); | |
342 | void dsl_dataset_rele_flags(dsl_dataset_t *ds, ds_hold_flags_t flags, | |
343 | const void *tag); | |
344 | void dsl_dataset_rele(dsl_dataset_t *ds, const void *tag); | |
345 | int dsl_dataset_own(struct dsl_pool *dp, const char *name, | |
346 | ds_hold_flags_t flags, const void *tag, dsl_dataset_t **dsp); | |
347 | int dsl_dataset_own_force(struct dsl_pool *dp, const char *name, | |
348 | ds_hold_flags_t flags, const void *tag, dsl_dataset_t **dsp); | |
349 | int dsl_dataset_own_obj(struct dsl_pool *dp, uint64_t dsobj, | |
350 | ds_hold_flags_t flags, const void *tag, dsl_dataset_t **dsp); | |
351 | int dsl_dataset_own_obj_force(struct dsl_pool *dp, uint64_t dsobj, | |
352 | ds_hold_flags_t flags, const void *tag, dsl_dataset_t **dsp); | |
353 | void dsl_dataset_disown(dsl_dataset_t *ds, ds_hold_flags_t flags, | |
354 | const void *tag); | |
355 | void dsl_dataset_name(dsl_dataset_t *ds, char *name); | |
356 | boolean_t dsl_dataset_tryown(dsl_dataset_t *ds, const void *tag, | |
357 | boolean_t override); | |
358 | int dsl_dataset_namelen(dsl_dataset_t *ds); | |
359 | boolean_t dsl_dataset_has_owner(dsl_dataset_t *ds); | |
360 | uint64_t dsl_dataset_create_sync(dsl_dir_t *pds, const char *lastname, | |
361 | dsl_dataset_t *origin, uint64_t flags, cred_t *, | |
362 | struct dsl_crypto_params *, dmu_tx_t *); | |
363 | uint64_t dsl_dataset_create_sync_dd(dsl_dir_t *dd, dsl_dataset_t *origin, | |
364 | struct dsl_crypto_params *dcp, uint64_t flags, dmu_tx_t *tx); | |
365 | void dsl_dataset_snapshot_sync(void *arg, dmu_tx_t *tx); | |
366 | int dsl_dataset_snapshot_check(void *arg, dmu_tx_t *tx); | |
367 | int dsl_dataset_snapshot(nvlist_t *snaps, nvlist_t *props, nvlist_t *errors); | |
368 | void dsl_dataset_promote_sync(void *arg, dmu_tx_t *tx); | |
369 | int dsl_dataset_promote_check(void *arg, dmu_tx_t *tx); | |
370 | int dsl_dataset_promote(const char *name, char *conflsnap); | |
371 | int dsl_dataset_rename_snapshot(const char *fsname, | |
372 | const char *oldsnapname, const char *newsnapname, boolean_t recursive); | |
373 | int dsl_dataset_snapshot_tmp(const char *fsname, const char *snapname, | |
374 | minor_t cleanup_minor, const char *htag); | |
375 | ||
376 | blkptr_t *dsl_dataset_get_blkptr(dsl_dataset_t *ds); | |
377 | ||
378 | spa_t *dsl_dataset_get_spa(dsl_dataset_t *ds); | |
379 | ||
380 | boolean_t dsl_dataset_modified_since_snap(dsl_dataset_t *ds, | |
381 | dsl_dataset_t *snap); | |
382 | ||
383 | void dsl_dataset_sync(dsl_dataset_t *ds, zio_t *zio, dmu_tx_t *tx); | |
384 | void dsl_dataset_sync_done(dsl_dataset_t *ds, dmu_tx_t *tx); | |
385 | ||
386 | void dsl_dataset_block_born(dsl_dataset_t *ds, const blkptr_t *bp, | |
387 | dmu_tx_t *tx); | |
388 | int dsl_dataset_block_kill(dsl_dataset_t *ds, const blkptr_t *bp, | |
389 | dmu_tx_t *tx, boolean_t async); | |
390 | void dsl_dataset_block_remapped(dsl_dataset_t *ds, uint64_t vdev, | |
391 | uint64_t offset, uint64_t size, uint64_t birth, dmu_tx_t *tx); | |
392 | int dsl_dataset_snap_lookup(dsl_dataset_t *ds, const char *name, | |
393 | uint64_t *value); | |
394 | ||
395 | void dsl_dataset_dirty(dsl_dataset_t *ds, dmu_tx_t *tx); | |
396 | ||
397 | int get_clones_stat_impl(dsl_dataset_t *ds, nvlist_t *val); | |
398 | char *get_receive_resume_token(dsl_dataset_t *ds); | |
399 | uint64_t dsl_get_refratio(dsl_dataset_t *ds); | |
400 | uint64_t dsl_get_logicalreferenced(dsl_dataset_t *ds); | |
401 | uint64_t dsl_get_compressratio(dsl_dataset_t *ds); | |
402 | uint64_t dsl_get_used(dsl_dataset_t *ds); | |
403 | uint64_t dsl_get_creation(dsl_dataset_t *ds); | |
404 | uint64_t dsl_get_creationtxg(dsl_dataset_t *ds); | |
405 | uint64_t dsl_get_refquota(dsl_dataset_t *ds); | |
406 | uint64_t dsl_get_refreservation(dsl_dataset_t *ds); | |
407 | uint64_t dsl_get_guid(dsl_dataset_t *ds); | |
408 | uint64_t dsl_get_unique(dsl_dataset_t *ds); | |
409 | uint64_t dsl_get_objsetid(dsl_dataset_t *ds); | |
410 | uint64_t dsl_get_userrefs(dsl_dataset_t *ds); | |
411 | uint64_t dsl_get_defer_destroy(dsl_dataset_t *ds); | |
412 | uint64_t dsl_get_referenced(dsl_dataset_t *ds); | |
413 | uint64_t dsl_get_numclones(dsl_dataset_t *ds); | |
414 | uint64_t dsl_get_inconsistent(dsl_dataset_t *ds); | |
415 | uint64_t dsl_get_redacted(dsl_dataset_t *ds); | |
416 | uint64_t dsl_get_available(dsl_dataset_t *ds); | |
417 | int dsl_get_written(dsl_dataset_t *ds, uint64_t *written); | |
418 | int dsl_get_prev_snap(dsl_dataset_t *ds, char *snap); | |
419 | void dsl_get_redact_snaps(dsl_dataset_t *ds, nvlist_t *propval); | |
420 | int dsl_get_mountpoint(dsl_dataset_t *ds, const char *dsname, char *value, | |
421 | char *source); | |
422 | ||
423 | void get_clones_stat(dsl_dataset_t *ds, nvlist_t *nv); | |
424 | void dsl_dataset_stats(dsl_dataset_t *os, nvlist_t *nv); | |
425 | ||
426 | void dsl_dataset_fast_stat(dsl_dataset_t *ds, dmu_objset_stats_t *stat); | |
427 | void dsl_dataset_space(dsl_dataset_t *ds, | |
428 | uint64_t *refdbytesp, uint64_t *availbytesp, | |
429 | uint64_t *usedobjsp, uint64_t *availobjsp); | |
430 | uint64_t dsl_dataset_fsid_guid(dsl_dataset_t *ds); | |
431 | int dsl_dataset_space_written(dsl_dataset_t *oldsnap, dsl_dataset_t *newds, | |
432 | uint64_t *usedp, uint64_t *compp, uint64_t *uncompp); | |
433 | int dsl_dataset_space_written_bookmark(struct zfs_bookmark_phys *bmp, | |
434 | dsl_dataset_t *newds, uint64_t *usedp, uint64_t *compp, uint64_t *uncompp); | |
435 | int dsl_dataset_space_wouldfree(dsl_dataset_t *firstsnap, dsl_dataset_t *last, | |
436 | uint64_t *usedp, uint64_t *compp, uint64_t *uncompp); | |
437 | ||
438 | int dsl_dsobj_to_dsname(char *pname, uint64_t obj, char *buf); | |
439 | ||
440 | int dsl_dataset_check_quota(dsl_dataset_t *ds, boolean_t check_quota, | |
441 | uint64_t asize, uint64_t inflight, uint64_t *used, | |
442 | uint64_t *ref_rsrv); | |
443 | int dsl_dataset_set_refquota(const char *dsname, zprop_source_t source, | |
444 | uint64_t quota); | |
445 | int dsl_dataset_set_refreservation(const char *dsname, zprop_source_t source, | |
446 | uint64_t reservation); | |
447 | int dsl_dataset_set_compression(const char *dsname, zprop_source_t source, | |
448 | uint64_t compression); | |
449 | ||
450 | boolean_t dsl_dataset_is_before(dsl_dataset_t *later, dsl_dataset_t *earlier, | |
451 | uint64_t earlier_txg); | |
452 | void dsl_dataset_long_hold(dsl_dataset_t *ds, const void *tag); | |
453 | void dsl_dataset_long_rele(dsl_dataset_t *ds, const void *tag); | |
454 | boolean_t dsl_dataset_long_held(dsl_dataset_t *ds); | |
455 | ||
456 | int dsl_dataset_clone_swap_check_impl(dsl_dataset_t *clone, | |
457 | dsl_dataset_t *origin_head, boolean_t force, void *owner, dmu_tx_t *tx); | |
458 | void dsl_dataset_clone_swap_sync_impl(dsl_dataset_t *clone, | |
459 | dsl_dataset_t *origin_head, dmu_tx_t *tx); | |
460 | int dsl_dataset_snapshot_check_impl(dsl_dataset_t *ds, const char *snapname, | |
461 | dmu_tx_t *tx, boolean_t recv, uint64_t cnt, cred_t *cr, proc_t *proc); | |
462 | void dsl_dataset_snapshot_sync_impl(dsl_dataset_t *ds, const char *snapname, | |
463 | dmu_tx_t *tx); | |
464 | ||
465 | void dsl_dataset_remove_from_next_clones(dsl_dataset_t *ds, uint64_t obj, | |
466 | dmu_tx_t *tx); | |
467 | void dsl_dataset_recalc_head_uniq(dsl_dataset_t *ds); | |
468 | int dsl_dataset_get_snapname(dsl_dataset_t *ds); | |
469 | int dsl_dataset_snap_lookup(dsl_dataset_t *ds, const char *name, | |
470 | uint64_t *value); | |
471 | int dsl_dataset_snap_remove(dsl_dataset_t *ds, const char *name, dmu_tx_t *tx, | |
472 | boolean_t adj_cnt); | |
473 | void dsl_dataset_set_refreservation_sync_impl(dsl_dataset_t *ds, | |
474 | zprop_source_t source, uint64_t value, dmu_tx_t *tx); | |
475 | void dsl_dataset_zapify(dsl_dataset_t *ds, dmu_tx_t *tx); | |
476 | boolean_t dsl_dataset_is_zapified(dsl_dataset_t *ds); | |
477 | boolean_t dsl_dataset_has_resume_receive_state(dsl_dataset_t *ds); | |
478 | ||
479 | int dsl_dataset_rollback_check(void *arg, dmu_tx_t *tx); | |
480 | void dsl_dataset_rollback_sync(void *arg, dmu_tx_t *tx); | |
481 | int dsl_dataset_rollback(const char *fsname, const char *tosnap, void *owner, | |
482 | nvlist_t *result); | |
483 | ||
484 | int dsl_dataset_rename_snapshot_check(void *arg, dmu_tx_t *tx); | |
485 | void dsl_dataset_rename_snapshot_sync(void *arg, dmu_tx_t *tx); | |
486 | ||
487 | uint64_t dsl_dataset_get_remap_deadlist_object(dsl_dataset_t *ds); | |
488 | void dsl_dataset_create_remap_deadlist(dsl_dataset_t *ds, dmu_tx_t *tx); | |
489 | boolean_t dsl_dataset_remap_deadlist_exists(dsl_dataset_t *ds); | |
490 | void dsl_dataset_destroy_remap_deadlist(dsl_dataset_t *ds, dmu_tx_t *tx); | |
491 | ||
492 | void dsl_dataset_activate_feature(uint64_t dsobj, spa_feature_t f, void *arg, | |
493 | dmu_tx_t *tx); | |
494 | void dsl_dataset_deactivate_feature(dsl_dataset_t *ds, spa_feature_t f, | |
495 | dmu_tx_t *tx); | |
496 | boolean_t dsl_dataset_feature_is_active(dsl_dataset_t *ds, spa_feature_t f); | |
497 | boolean_t dsl_dataset_get_uint64_array_feature(dsl_dataset_t *ds, | |
498 | spa_feature_t f, uint64_t *outlength, uint64_t **outp); | |
499 | ||
500 | void dsl_dataset_activate_redaction(dsl_dataset_t *ds, uint64_t *redact_snaps, | |
501 | uint64_t num_redact_snaps, dmu_tx_t *tx); | |
502 | ||
503 | int dsl_dataset_oldest_snapshot(spa_t *spa, uint64_t head_ds, uint64_t min_txg, | |
504 | uint64_t *oldest_dsobj); | |
505 | ||
506 | #ifdef ZFS_DEBUG | |
507 | #define dprintf_ds(ds, fmt, ...) do { \ | |
508 | if (zfs_flags & ZFS_DEBUG_DPRINTF) { \ | |
509 | char *__ds_name = kmem_alloc(ZFS_MAX_DATASET_NAME_LEN, KM_SLEEP); \ | |
510 | dsl_dataset_name(ds, __ds_name); \ | |
511 | dprintf("ds=%s " fmt, __ds_name, __VA_ARGS__); \ | |
512 | kmem_free(__ds_name, ZFS_MAX_DATASET_NAME_LEN); \ | |
513 | } \ | |
514 | } while (0) | |
515 | #else | |
516 | #define dprintf_ds(dd, fmt, ...) | |
517 | #endif | |
518 | ||
519 | #ifdef __cplusplus | |
520 | } | |
521 | #endif | |
522 | ||
523 | #endif /* _SYS_DSL_DATASET_H */ |