8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright (c) 2011, 2017 by Delphix. All rights reserved.
24 * Copyright (c) 2013, Joyent, Inc. All rights reserved.
25 * Copyright (c) 2013 Steven Hartland. All rights reserved.
26 * Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
27 * Copyright (c) 2014 Integros [integros.com]
28 */
29
30 #ifndef _SYS_DSL_DATASET_H
31 #define _SYS_DSL_DATASET_H
32
33 #include <sys/dmu.h>
34 #include <sys/spa.h>
35 #include <sys/txg.h>
36 #include <sys/zio.h>
37 #include <sys/bplist.h>
38 #include <sys/dsl_synctask.h>
39 #include <sys/zfs_context.h>
40 #include <sys/dsl_deadlist.h>
41 #include <sys/refcount.h>
42 #include <sys/rrwlock.h>
43 #include <zfeature_common.h>
44
45 #ifdef __cplusplus
46 extern "C" {
47 #endif
84 * bookmarks of this dataset. If it is present, then this dataset is counted
85 * in the refcount of the SPA_FEATURES_BOOKMARKS feature.
86 */
87 #define DS_FIELD_BOOKMARK_NAMES "com.delphix:bookmarks"
88
89 /*
90 * These fields are set on datasets that are in the middle of a resumable
91 * receive, and allow the sender to resume the send if it is interrupted.
92 */
93 #define DS_FIELD_RESUME_FROMGUID "com.delphix:resume_fromguid"
94 #define DS_FIELD_RESUME_TONAME "com.delphix:resume_toname"
95 #define DS_FIELD_RESUME_TOGUID "com.delphix:resume_toguid"
96 #define DS_FIELD_RESUME_OBJECT "com.delphix:resume_object"
97 #define DS_FIELD_RESUME_OFFSET "com.delphix:resume_offset"
98 #define DS_FIELD_RESUME_BYTES "com.delphix:resume_bytes"
99 #define DS_FIELD_RESUME_LARGEBLOCK "com.delphix:resume_largeblockok"
100 #define DS_FIELD_RESUME_EMBEDOK "com.delphix:resume_embedok"
101 #define DS_FIELD_RESUME_COMPRESSOK "com.delphix:resume_compressok"
102
103 /*
104 * This field is set to the object number of the remap deadlist if one exists.
105 */
106 #define DS_FIELD_REMAP_DEADLIST "com.delphix:remap_deadlist"
107
108 /*
109 * DS_FLAG_CI_DATASET is set if the dataset contains a file system whose
110 * name lookups should be performed case-insensitively.
111 */
112 #define DS_FLAG_CI_DATASET (1ULL<<16)
113
114 #define DS_CREATE_FLAG_NODIRTY (1ULL<<24)
115
116 typedef struct dsl_dataset_phys {
117 uint64_t ds_dir_obj; /* DMU_OT_DSL_DIR */
118 uint64_t ds_prev_snap_obj; /* DMU_OT_DSL_DATASET */
119 uint64_t ds_prev_snap_txg;
120 uint64_t ds_next_snap_obj; /* DMU_OT_DSL_DATASET */
121 uint64_t ds_snapnames_zapobj; /* DMU_OT_DSL_DS_SNAP_MAP 0 for snaps */
122 uint64_t ds_num_children; /* clone/snap children; ==0 for head */
123 uint64_t ds_creation_time; /* seconds since 1970 */
124 uint64_t ds_creation_txg;
125 uint64_t ds_deadlist_obj; /* DMU_OT_DEADLIST */
126 /*
127 * ds_referenced_bytes, ds_compressed_bytes, and ds_uncompressed_bytes
128 * include all blocks referenced by this dataset, including those
129 * shared with any other datasets.
130 */
131 uint64_t ds_referenced_bytes;
132 uint64_t ds_compressed_bytes;
133 uint64_t ds_uncompressed_bytes;
134 uint64_t ds_unique_bytes; /* only relevant to snapshots */
135 /*
149
150 typedef struct dsl_dataset {
151 dmu_buf_user_t ds_dbu;
152 rrwlock_t ds_bp_rwlock; /* Protects ds_phys->ds_bp */
153
154 /* Immutable: */
155 struct dsl_dir *ds_dir;
156 dmu_buf_t *ds_dbuf;
157 uint64_t ds_object;
158 uint64_t ds_fsid_guid;
159 boolean_t ds_is_snapshot;
160
161 /* only used in syncing context, only valid for non-snapshots: */
162 struct dsl_dataset *ds_prev;
163 uint64_t ds_bookmarks; /* DMU_OTN_ZAP_METADATA */
164
165 /* has internal locking: */
166 dsl_deadlist_t ds_deadlist;
167 bplist_t ds_pending_deadlist;
168
169 /*
170 * The remap deadlist contains blocks (DVA's, really) that are
171 * referenced by the previous snapshot and point to indirect vdevs,
172 * but in this dataset they have been remapped to point to concrete
173 * (or at least, less-indirect) vdevs. In other words, the
174 * physical DVA is referenced by the previous snapshot but not by
175 * this dataset. Logically, the DVA continues to be referenced,
176 * but we are using a different (less indirect) physical DVA.
177 * This deadlist is used to determine when physical DVAs that
178 * point to indirect vdevs are no longer referenced anywhere,
179 * and thus should be marked obsolete.
180 *
181 * This is only used if SPA_FEATURE_OBSOLETE_COUNTS is enabled.
182 */
183 dsl_deadlist_t ds_remap_deadlist;
184 /* protects creation of the ds_remap_deadlist */
185 kmutex_t ds_remap_deadlist_lock;
186
187 /* protected by lock on pool's dp_dirty_datasets list */
188 txg_node_t ds_dirty_link;
189 list_node_t ds_synced_link;
190
191 /*
192 * ds_phys->ds_<accounting> is also protected by ds_lock.
193 * Protected by ds_lock:
194 */
195 kmutex_t ds_lock;
196 objset_t *ds_objset;
197 uint64_t ds_userrefs;
198 void *ds_owner;
199
200 /*
201 * Long holds prevent the ds from being destroyed; they allow the
202 * ds to remain held even after dropping the dp_config_rwlock.
203 * Owning counts as a long hold. See the comments above
204 * dsl_pool_hold() for details.
205 */
206 refcount_t ds_longholds;
207
208 /* no locking; only for making guesses */
209 uint64_t ds_trysnap_txg;
210
211 /* for objset_open() */
212 kmutex_t ds_opening_lock;
213
214 uint64_t ds_reserved; /* cached refreservation */
215 uint64_t ds_quota; /* cached refquota */
216
217 kmutex_t ds_sendstream_lock;
218 list_t ds_sendstreams;
219
220 /*
221 * When in the middle of a resumable receive, tracks how much
222 * progress we have made.
223 */
224 uint64_t ds_resume_object[TXG_SIZE];
225 uint64_t ds_resume_offset[TXG_SIZE];
250 return (ds->ds_dbuf->db_data);
251 }
252
253 typedef struct dsl_dataset_promote_arg {
254 const char *ddpa_clonename;
255 dsl_dataset_t *ddpa_clone;
256 list_t shared_snaps, origin_snaps, clone_snaps;
257 dsl_dataset_t *origin_origin; /* origin of the origin */
258 uint64_t used, comp, uncomp, unique, cloneusedsnap, originusedsnap;
259 nvlist_t *err_ds;
260 cred_t *cr;
261 } dsl_dataset_promote_arg_t;
262
263 typedef struct dsl_dataset_rollback_arg {
264 const char *ddra_fsname;
265 const char *ddra_tosnap;
266 void *ddra_owner;
267 nvlist_t *ddra_result;
268 } dsl_dataset_rollback_arg_t;
269
270 typedef struct dsl_dataset_snapshot_arg {
271 nvlist_t *ddsa_snaps;
272 nvlist_t *ddsa_props;
273 nvlist_t *ddsa_errors;
274 cred_t *ddsa_cr;
275 } dsl_dataset_snapshot_arg_t;
276
277 /*
278 * The max length of a temporary tag prefix is the number of hex digits
279 * required to express UINT64_MAX plus one for the hyphen.
280 */
281 #define MAX_TAG_PREFIX_LEN 17
282
283 #define dsl_dataset_is_snapshot(ds) \
284 (dsl_dataset_phys(ds)->ds_num_children != 0)
285
286 #define DS_UNIQUE_IS_ACCURATE(ds) \
287 ((dsl_dataset_phys(ds)->ds_flags & DS_FLAG_UNIQUE_ACCURATE) != 0)
288
289 int dsl_dataset_hold(struct dsl_pool *dp, const char *name, void *tag,
290 dsl_dataset_t **dsp);
291 boolean_t dsl_dataset_try_add_ref(struct dsl_pool *dp, dsl_dataset_t *ds,
292 void *tag);
293 int dsl_dataset_hold_obj(struct dsl_pool *dp, uint64_t dsobj, void *tag,
294 dsl_dataset_t **);
295 void dsl_dataset_rele(dsl_dataset_t *ds, void *tag);
296 int dsl_dataset_own(struct dsl_pool *dp, const char *name,
316 boolean_t force);
317 int dsl_dataset_rename_snapshot(const char *fsname,
318 const char *oldsnapname, const char *newsnapname, boolean_t recursive);
319 int dsl_dataset_snapshot_tmp(const char *fsname, const char *snapname,
320 minor_t cleanup_minor, const char *htag);
321
322 blkptr_t *dsl_dataset_get_blkptr(dsl_dataset_t *ds);
323
324 spa_t *dsl_dataset_get_spa(dsl_dataset_t *ds);
325
326 boolean_t dsl_dataset_modified_since_snap(dsl_dataset_t *ds,
327 dsl_dataset_t *snap);
328
329 void dsl_dataset_sync(dsl_dataset_t *os, zio_t *zio, dmu_tx_t *tx);
330 void dsl_dataset_sync_done(dsl_dataset_t *os, dmu_tx_t *tx);
331
332 void dsl_dataset_block_born(dsl_dataset_t *ds, const blkptr_t *bp,
333 dmu_tx_t *tx);
334 int dsl_dataset_block_kill(dsl_dataset_t *ds, const blkptr_t *bp,
335 dmu_tx_t *tx, boolean_t async);
336 void dsl_dataset_block_remapped(dsl_dataset_t *ds, uint64_t vdev,
337 uint64_t offset, uint64_t size, uint64_t birth, dmu_tx_t *tx);
338
339 void dsl_dataset_dirty(dsl_dataset_t *ds, dmu_tx_t *tx);
340
341 int get_clones_stat_impl(dsl_dataset_t *ds, nvlist_t *val);
342 char *get_receive_resume_stats_impl(dsl_dataset_t *ds);
343 char *get_child_receive_stats(dsl_dataset_t *ds);
344 uint64_t dsl_get_refratio(dsl_dataset_t *ds);
345 uint64_t dsl_get_logicalreferenced(dsl_dataset_t *ds);
346 uint64_t dsl_get_compressratio(dsl_dataset_t *ds);
347 uint64_t dsl_get_used(dsl_dataset_t *ds);
348 uint64_t dsl_get_creation(dsl_dataset_t *ds);
349 uint64_t dsl_get_creationtxg(dsl_dataset_t *ds);
350 uint64_t dsl_get_refquota(dsl_dataset_t *ds);
351 uint64_t dsl_get_refreservation(dsl_dataset_t *ds);
352 uint64_t dsl_get_guid(dsl_dataset_t *ds);
353 uint64_t dsl_get_unique(dsl_dataset_t *ds);
354 uint64_t dsl_get_objsetid(dsl_dataset_t *ds);
355 uint64_t dsl_get_userrefs(dsl_dataset_t *ds);
356 uint64_t dsl_get_defer_destroy(dsl_dataset_t *ds);
357 uint64_t dsl_get_referenced(dsl_dataset_t *ds);
405
406 void dsl_dataset_remove_from_next_clones(dsl_dataset_t *ds, uint64_t obj,
407 dmu_tx_t *tx);
408 void dsl_dataset_recalc_head_uniq(dsl_dataset_t *ds);
409 int dsl_dataset_get_snapname(dsl_dataset_t *ds);
410 int dsl_dataset_snap_lookup(dsl_dataset_t *ds, const char *name,
411 uint64_t *value);
412 int dsl_dataset_snap_remove(dsl_dataset_t *ds, const char *name, dmu_tx_t *tx,
413 boolean_t adj_cnt);
414 void dsl_dataset_set_refreservation_sync_impl(dsl_dataset_t *ds,
415 zprop_source_t source, uint64_t value, dmu_tx_t *tx);
416 void dsl_dataset_zapify(dsl_dataset_t *ds, dmu_tx_t *tx);
417 boolean_t dsl_dataset_is_zapified(dsl_dataset_t *ds);
418 boolean_t dsl_dataset_has_resume_receive_state(dsl_dataset_t *ds);
419
420 int dsl_dataset_rollback_check(void *arg, dmu_tx_t *tx);
421 void dsl_dataset_rollback_sync(void *arg, dmu_tx_t *tx);
422 int dsl_dataset_rollback(const char *fsname, const char *tosnap, void *owner,
423 nvlist_t *result);
424
425 uint64_t dsl_dataset_get_remap_deadlist_object(dsl_dataset_t *ds);
426 void dsl_dataset_create_remap_deadlist(dsl_dataset_t *ds, dmu_tx_t *tx);
427 boolean_t dsl_dataset_remap_deadlist_exists(dsl_dataset_t *ds);
428 void dsl_dataset_destroy_remap_deadlist(dsl_dataset_t *ds, dmu_tx_t *tx);
429
430 void dsl_dataset_deactivate_feature(uint64_t dsobj,
431 spa_feature_t f, dmu_tx_t *tx);
432
433 #ifdef ZFS_DEBUG
434 #define dprintf_ds(ds, fmt, ...) do { \
435 if (zfs_flags & ZFS_DEBUG_DPRINTF) { \
436 char *__ds_name = kmem_alloc(ZFS_MAX_DATASET_NAME_LEN, KM_SLEEP); \
437 dsl_dataset_name(ds, __ds_name); \
438 dprintf("ds=%s " fmt, __ds_name, __VA_ARGS__); \
439 kmem_free(__ds_name, ZFS_MAX_DATASET_NAME_LEN); \
440 } \
441 _NOTE(CONSTCOND) } while (0)
442 #else
443 #define dprintf_ds(dd, fmt, ...)
444 #endif
445
446 #ifdef __cplusplus
447 }
448 #endif
449
|
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright (c) 2011, 2017 by Delphix. All rights reserved.
24 * Copyright (c) 2013, Joyent, Inc. All rights reserved.
25 * Copyright (c) 2013 Steven Hartland. All rights reserved.
26 * Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
27 * Copyright (c) 2014 Integros [integros.com]
28 * Copyright 2016 Nexenta Systems, Inc. All rights reserved.
29 */
30
31 #ifndef _SYS_DSL_DATASET_H
32 #define _SYS_DSL_DATASET_H
33
34 #include <sys/dmu.h>
35 #include <sys/spa.h>
36 #include <sys/txg.h>
37 #include <sys/zio.h>
38 #include <sys/bplist.h>
39 #include <sys/dsl_synctask.h>
40 #include <sys/zfs_context.h>
41 #include <sys/dsl_deadlist.h>
42 #include <sys/refcount.h>
43 #include <sys/rrwlock.h>
44 #include <zfeature_common.h>
45
46 #ifdef __cplusplus
47 extern "C" {
48 #endif
85 * bookmarks of this dataset. If it is present, then this dataset is counted
86 * in the refcount of the SPA_FEATURES_BOOKMARKS feature.
87 */
88 #define DS_FIELD_BOOKMARK_NAMES "com.delphix:bookmarks"
89
90 /*
91 * These fields are set on datasets that are in the middle of a resumable
92 * receive, and allow the sender to resume the send if it is interrupted.
93 */
94 #define DS_FIELD_RESUME_FROMGUID "com.delphix:resume_fromguid"
95 #define DS_FIELD_RESUME_TONAME "com.delphix:resume_toname"
96 #define DS_FIELD_RESUME_TOGUID "com.delphix:resume_toguid"
97 #define DS_FIELD_RESUME_OBJECT "com.delphix:resume_object"
98 #define DS_FIELD_RESUME_OFFSET "com.delphix:resume_offset"
99 #define DS_FIELD_RESUME_BYTES "com.delphix:resume_bytes"
100 #define DS_FIELD_RESUME_LARGEBLOCK "com.delphix:resume_largeblockok"
101 #define DS_FIELD_RESUME_EMBEDOK "com.delphix:resume_embedok"
102 #define DS_FIELD_RESUME_COMPRESSOK "com.delphix:resume_compressok"
103
104 /*
105 * DS_FLAG_CI_DATASET is set if the dataset contains a file system whose
106 * name lookups should be performed case-insensitively.
107 */
108 #define DS_FLAG_CI_DATASET (1ULL<<16)
109
110 #define DS_CREATE_FLAG_NODIRTY (1ULL<<24)
111
112 typedef struct dsl_dataset_snapshot_arg {
113 nvlist_t *ddsa_snaps;
114 nvlist_t *ddsa_props;
115 nvlist_t *ddsa_errors;
116 cred_t *ddsa_cr;
117 boolean_t ddsa_autosnap;
118 } dsl_dataset_snapshot_arg_t;
119
120 typedef struct dsl_dataset_phys {
121 uint64_t ds_dir_obj; /* DMU_OT_DSL_DIR */
122 uint64_t ds_prev_snap_obj; /* DMU_OT_DSL_DATASET */
123 uint64_t ds_prev_snap_txg;
124 uint64_t ds_next_snap_obj; /* DMU_OT_DSL_DATASET */
125 uint64_t ds_snapnames_zapobj; /* DMU_OT_DSL_DS_SNAP_MAP 0 for snaps */
126 uint64_t ds_num_children; /* clone/snap children; ==0 for head */
127 uint64_t ds_creation_time; /* seconds since 1970 */
128 uint64_t ds_creation_txg;
129 uint64_t ds_deadlist_obj; /* DMU_OT_DEADLIST */
130 /*
131 * ds_referenced_bytes, ds_compressed_bytes, and ds_uncompressed_bytes
132 * include all blocks referenced by this dataset, including those
133 * shared with any other datasets.
134 */
135 uint64_t ds_referenced_bytes;
136 uint64_t ds_compressed_bytes;
137 uint64_t ds_uncompressed_bytes;
138 uint64_t ds_unique_bytes; /* only relevant to snapshots */
139 /*
153
154 typedef struct dsl_dataset {
155 dmu_buf_user_t ds_dbu;
156 rrwlock_t ds_bp_rwlock; /* Protects ds_phys->ds_bp */
157
158 /* Immutable: */
159 struct dsl_dir *ds_dir;
160 dmu_buf_t *ds_dbuf;
161 uint64_t ds_object;
162 uint64_t ds_fsid_guid;
163 boolean_t ds_is_snapshot;
164
165 /* only used in syncing context, only valid for non-snapshots: */
166 struct dsl_dataset *ds_prev;
167 uint64_t ds_bookmarks; /* DMU_OTN_ZAP_METADATA */
168
169 /* has internal locking: */
170 dsl_deadlist_t ds_deadlist;
171 bplist_t ds_pending_deadlist;
172
173 /* protected by lock on pool's dp_dirty_datasets list */
174 txg_node_t ds_dirty_link;
175 list_node_t ds_synced_link;
176
177 /*
178 * ds_phys->ds_<accounting> is also protected by ds_lock.
179 * Protected by ds_lock:
180 */
181 kmutex_t ds_lock;
182 objset_t *ds_objset;
183 uint64_t ds_userrefs;
184 void *ds_owner;
185
186 /*
187 * NOTE: for pool with special device only
188 * Last transaction data was moved from special devices
189 * to other (regular) devices in a pool.
190 */
191 uint64_t ds_lstxg;
192
193 /*
194 * NOTE: for pool with special device only
195 * Level 0 bookmark we remembered when we were interrupted
196 * during traversal process. Used to resume traversal
197 * later.
198 */
199 zbookmark_phys_t ds_lszb;
200
201 /*
202 * Long holds prevent the ds from being destroyed; they allow the
203 * ds to remain held even after dropping the dp_config_rwlock.
204 * Owning counts as a long hold. See the comments above
205 * dsl_pool_hold() for details.
206 */
207
208 refcount_t ds_longholds;
209
210 /* no locking; only for making guesses */
211 uint64_t ds_trysnap_txg;
212
213 /* for objset_open() */
214 kmutex_t ds_opening_lock;
215
216 uint64_t ds_reserved; /* cached refreservation */
217 uint64_t ds_quota; /* cached refquota */
218
219 kmutex_t ds_sendstream_lock;
220 list_t ds_sendstreams;
221
222 /*
223 * When in the middle of a resumable receive, tracks how much
224 * progress we have made.
225 */
226 uint64_t ds_resume_object[TXG_SIZE];
227 uint64_t ds_resume_offset[TXG_SIZE];
252 return (ds->ds_dbuf->db_data);
253 }
254
255 typedef struct dsl_dataset_promote_arg {
256 const char *ddpa_clonename;
257 dsl_dataset_t *ddpa_clone;
258 list_t shared_snaps, origin_snaps, clone_snaps;
259 dsl_dataset_t *origin_origin; /* origin of the origin */
260 uint64_t used, comp, uncomp, unique, cloneusedsnap, originusedsnap;
261 nvlist_t *err_ds;
262 cred_t *cr;
263 } dsl_dataset_promote_arg_t;
264
265 typedef struct dsl_dataset_rollback_arg {
266 const char *ddra_fsname;
267 const char *ddra_tosnap;
268 void *ddra_owner;
269 nvlist_t *ddra_result;
270 } dsl_dataset_rollback_arg_t;
271
272 /*
273 * The max length of a temporary tag prefix is the number of hex digits
274 * required to express UINT64_MAX plus one for the hyphen.
275 */
276 #define MAX_TAG_PREFIX_LEN 17
277
278 #define dsl_dataset_is_snapshot(ds) \
279 (dsl_dataset_phys(ds)->ds_num_children != 0)
280
281 #define DS_UNIQUE_IS_ACCURATE(ds) \
282 ((dsl_dataset_phys(ds)->ds_flags & DS_FLAG_UNIQUE_ACCURATE) != 0)
283
284 int dsl_dataset_hold(struct dsl_pool *dp, const char *name, void *tag,
285 dsl_dataset_t **dsp);
286 boolean_t dsl_dataset_try_add_ref(struct dsl_pool *dp, dsl_dataset_t *ds,
287 void *tag);
288 int dsl_dataset_hold_obj(struct dsl_pool *dp, uint64_t dsobj, void *tag,
289 dsl_dataset_t **);
290 void dsl_dataset_rele(dsl_dataset_t *ds, void *tag);
291 int dsl_dataset_own(struct dsl_pool *dp, const char *name,
311 boolean_t force);
312 int dsl_dataset_rename_snapshot(const char *fsname,
313 const char *oldsnapname, const char *newsnapname, boolean_t recursive);
314 int dsl_dataset_snapshot_tmp(const char *fsname, const char *snapname,
315 minor_t cleanup_minor, const char *htag);
316
317 blkptr_t *dsl_dataset_get_blkptr(dsl_dataset_t *ds);
318
319 spa_t *dsl_dataset_get_spa(dsl_dataset_t *ds);
320
321 boolean_t dsl_dataset_modified_since_snap(dsl_dataset_t *ds,
322 dsl_dataset_t *snap);
323
324 void dsl_dataset_sync(dsl_dataset_t *os, zio_t *zio, dmu_tx_t *tx);
325 void dsl_dataset_sync_done(dsl_dataset_t *os, dmu_tx_t *tx);
326
327 void dsl_dataset_block_born(dsl_dataset_t *ds, const blkptr_t *bp,
328 dmu_tx_t *tx);
329 int dsl_dataset_block_kill(dsl_dataset_t *ds, const blkptr_t *bp,
330 dmu_tx_t *tx, boolean_t async);
331
332 void dsl_dataset_dirty(dsl_dataset_t *ds, dmu_tx_t *tx);
333
334 int get_clones_stat_impl(dsl_dataset_t *ds, nvlist_t *val);
335 char *get_receive_resume_stats_impl(dsl_dataset_t *ds);
336 char *get_child_receive_stats(dsl_dataset_t *ds);
337 uint64_t dsl_get_refratio(dsl_dataset_t *ds);
338 uint64_t dsl_get_logicalreferenced(dsl_dataset_t *ds);
339 uint64_t dsl_get_compressratio(dsl_dataset_t *ds);
340 uint64_t dsl_get_used(dsl_dataset_t *ds);
341 uint64_t dsl_get_creation(dsl_dataset_t *ds);
342 uint64_t dsl_get_creationtxg(dsl_dataset_t *ds);
343 uint64_t dsl_get_refquota(dsl_dataset_t *ds);
344 uint64_t dsl_get_refreservation(dsl_dataset_t *ds);
345 uint64_t dsl_get_guid(dsl_dataset_t *ds);
346 uint64_t dsl_get_unique(dsl_dataset_t *ds);
347 uint64_t dsl_get_objsetid(dsl_dataset_t *ds);
348 uint64_t dsl_get_userrefs(dsl_dataset_t *ds);
349 uint64_t dsl_get_defer_destroy(dsl_dataset_t *ds);
350 uint64_t dsl_get_referenced(dsl_dataset_t *ds);
398
399 void dsl_dataset_remove_from_next_clones(dsl_dataset_t *ds, uint64_t obj,
400 dmu_tx_t *tx);
401 void dsl_dataset_recalc_head_uniq(dsl_dataset_t *ds);
402 int dsl_dataset_get_snapname(dsl_dataset_t *ds);
403 int dsl_dataset_snap_lookup(dsl_dataset_t *ds, const char *name,
404 uint64_t *value);
405 int dsl_dataset_snap_remove(dsl_dataset_t *ds, const char *name, dmu_tx_t *tx,
406 boolean_t adj_cnt);
407 void dsl_dataset_set_refreservation_sync_impl(dsl_dataset_t *ds,
408 zprop_source_t source, uint64_t value, dmu_tx_t *tx);
409 void dsl_dataset_zapify(dsl_dataset_t *ds, dmu_tx_t *tx);
410 boolean_t dsl_dataset_is_zapified(dsl_dataset_t *ds);
411 boolean_t dsl_dataset_has_resume_receive_state(dsl_dataset_t *ds);
412
413 int dsl_dataset_rollback_check(void *arg, dmu_tx_t *tx);
414 void dsl_dataset_rollback_sync(void *arg, dmu_tx_t *tx);
415 int dsl_dataset_rollback(const char *fsname, const char *tosnap, void *owner,
416 nvlist_t *result);
417
418 int dsl_dataset_snapshot_check(void *arg, dmu_tx_t *tx);
419 void dsl_dataset_snapshot_sync(void *arg, dmu_tx_t *tx);
420
421 typedef struct {
422 char name[ZFS_MAX_DATASET_NAME_LEN];
423 char origin_name[ZFS_MAX_DATASET_NAME_LEN];
424 uint64_t origin_guid;
425 uint64_t cookie;
426 boolean_t cookie_is_snap;
427 boolean_t top_level_ds;
428 dsl_dataset_t *ds;
429 list_node_t node;
430 avl_tree_t snapshots;
431 } zfs_ds_collector_entry_t;
432
433 uint64_t dsl_dataset_creation_txg(const char *name);
434
435 boolean_t dataset_name_hidden(const char *name);
436
437 zfs_ds_collector_entry_t *dsl_dataset_collector_cache_alloc();
438 void dsl_dataset_collector_cache_free(zfs_ds_collector_entry_t *entry);
439
440 void dsl_dataset_deactivate_feature(uint64_t dsobj,
441 spa_feature_t f, dmu_tx_t *tx);
442
443 #ifdef ZFS_DEBUG
444 #define dprintf_ds(ds, fmt, ...) do { \
445 if (zfs_flags & ZFS_DEBUG_DPRINTF) { \
446 char *__ds_name = kmem_alloc(ZFS_MAX_DATASET_NAME_LEN, KM_SLEEP); \
447 dsl_dataset_name(ds, __ds_name); \
448 dprintf("ds=%s " fmt, __ds_name, __VA_ARGS__); \
449 kmem_free(__ds_name, ZFS_MAX_DATASET_NAME_LEN); \
450 } \
451 _NOTE(CONSTCOND) } while (0)
452 #else
453 #define dprintf_ds(dd, fmt, ...)
454 #endif
455
456 #ifdef __cplusplus
457 }
458 #endif
459
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