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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. |
241b5415 | 23 | * Copyright (c) 2011, 2015 by Delphix. All rights reserved. |
fcff0f35 | 24 | * Copyright (c) 2011, 2014 by Delphix. All rights reserved. |
95fd54a1 | 25 | * Copyright (c) 2013 Steven Hartland. All rights reserved. |
0c66c32d | 26 | * Copyright (c) 2014 Spectra Logic Corporation, All rights reserved. |
34dc7c2f BB |
27 | */ |
28 | ||
29 | #ifndef _SYS_DSL_DATASET_H | |
30 | #define _SYS_DSL_DATASET_H | |
31 | ||
34dc7c2f BB |
32 | #include <sys/dmu.h> |
33 | #include <sys/spa.h> | |
34 | #include <sys/txg.h> | |
35 | #include <sys/zio.h> | |
36 | #include <sys/bplist.h> | |
37 | #include <sys/dsl_synctask.h> | |
38 | #include <sys/zfs_context.h> | |
428870ff | 39 | #include <sys/dsl_deadlist.h> |
13fe0198 | 40 | #include <sys/refcount.h> |
cc9bb3e5 | 41 | #include <sys/rrwlock.h> |
b5256303 | 42 | #include <sys/dsl_crypt.h> |
241b5415 | 43 | #include <zfeature_common.h> |
34dc7c2f BB |
44 | |
45 | #ifdef __cplusplus | |
46 | extern "C" { | |
47 | #endif | |
48 | ||
49 | struct dsl_dataset; | |
50 | struct dsl_dir; | |
51 | struct dsl_pool; | |
b5256303 | 52 | struct dsl_crypto_params; |
34dc7c2f | 53 | |
34dc7c2f | 54 | #define DS_FLAG_INCONSISTENT (1ULL<<0) |
b128c09f | 55 | #define DS_IS_INCONSISTENT(ds) \ |
d683ddbb | 56 | (dsl_dataset_phys(ds)->ds_flags & DS_FLAG_INCONSISTENT) |
fa86b5db | 57 | |
34dc7c2f | 58 | /* |
fa86b5db | 59 | * Do not allow this dataset to be promoted. |
34dc7c2f BB |
60 | */ |
61 | #define DS_FLAG_NOPROMOTE (1ULL<<1) | |
62 | ||
63 | /* | |
64 | * DS_FLAG_UNIQUE_ACCURATE is set if ds_unique_bytes has been correctly | |
65 | * calculated for head datasets (starting with SPA_VERSION_UNIQUE_ACCURATE, | |
66 | * refquota/refreservations). | |
67 | */ | |
68 | #define DS_FLAG_UNIQUE_ACCURATE (1ULL<<2) | |
69 | ||
45d1cae3 BB |
70 | /* |
71 | * DS_FLAG_DEFER_DESTROY is set after 'zfs destroy -d' has been called | |
72 | * on a dataset. This allows the dataset to be destroyed using 'zfs release'. | |
73 | */ | |
74 | #define DS_FLAG_DEFER_DESTROY (1ULL<<3) | |
75 | #define DS_IS_DEFER_DESTROY(ds) \ | |
d683ddbb | 76 | (dsl_dataset_phys(ds)->ds_flags & DS_FLAG_DEFER_DESTROY) |
45d1cae3 | 77 | |
fa86b5db MA |
78 | /* |
79 | * DS_FIELD_* are strings that are used in the "extensified" dataset zap object. | |
80 | * They should be of the format <reverse-dns>:<field>. | |
81 | */ | |
82 | ||
da536844 MA |
83 | /* |
84 | * This field's value is the object ID of a zap object which contains the | |
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 | ||
50c957f7 NB |
90 | /* |
91 | * This field is present (with value=0) if this dataset may contain large | |
92 | * dnodes (>512B). If it is present, then this dataset is counted in the | |
93 | * refcount of the SPA_FEATURE_LARGE_DNODE feature. | |
94 | */ | |
95 | #define DS_FIELD_LARGE_DNODE "org.zfsonlinux:large_dnode" | |
96 | ||
47dfff3b MA |
97 | /* |
98 | * These fields are set on datasets that are in the middle of a resumable | |
99 | * receive, and allow the sender to resume the send if it is interrupted. | |
100 | */ | |
101 | #define DS_FIELD_RESUME_FROMGUID "com.delphix:resume_fromguid" | |
102 | #define DS_FIELD_RESUME_TONAME "com.delphix:resume_toname" | |
103 | #define DS_FIELD_RESUME_TOGUID "com.delphix:resume_toguid" | |
104 | #define DS_FIELD_RESUME_OBJECT "com.delphix:resume_object" | |
105 | #define DS_FIELD_RESUME_OFFSET "com.delphix:resume_offset" | |
106 | #define DS_FIELD_RESUME_BYTES "com.delphix:resume_bytes" | |
2aa34383 | 107 | #define DS_FIELD_RESUME_LARGEBLOCK "com.delphix:resume_largeblockok" |
47dfff3b | 108 | #define DS_FIELD_RESUME_EMBEDOK "com.delphix:resume_embedok" |
2aa34383 | 109 | #define DS_FIELD_RESUME_COMPRESSOK "com.delphix:resume_compressok" |
b5256303 | 110 | #define DS_FIELD_RESUME_RAWOK "com.datto:resume_rawok" |
47dfff3b | 111 | |
34dc7c2f BB |
112 | /* |
113 | * DS_FLAG_CI_DATASET is set if the dataset contains a file system whose | |
114 | * name lookups should be performed case-insensitively. | |
115 | */ | |
116 | #define DS_FLAG_CI_DATASET (1ULL<<16) | |
117 | ||
13fe0198 MA |
118 | #define DS_CREATE_FLAG_NODIRTY (1ULL<<24) |
119 | ||
34dc7c2f | 120 | typedef struct dsl_dataset_phys { |
b128c09f BB |
121 | uint64_t ds_dir_obj; /* DMU_OT_DSL_DIR */ |
122 | uint64_t ds_prev_snap_obj; /* DMU_OT_DSL_DATASET */ | |
34dc7c2f | 123 | uint64_t ds_prev_snap_txg; |
b128c09f BB |
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 */ | |
34dc7c2f BB |
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; | |
428870ff | 129 | uint64_t ds_deadlist_obj; /* DMU_OT_DEADLIST */ |
9ae529ec CS |
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; | |
34dc7c2f BB |
136 | uint64_t ds_compressed_bytes; |
137 | uint64_t ds_uncompressed_bytes; | |
138 | uint64_t ds_unique_bytes; /* only relevant to snapshots */ | |
139 | /* | |
140 | * The ds_fsid_guid is a 56-bit ID that can change to avoid | |
141 | * collisions. The ds_guid is a 64-bit ID that will never | |
142 | * change, so there is a small probability that it will collide. | |
143 | */ | |
144 | uint64_t ds_fsid_guid; | |
145 | uint64_t ds_guid; | |
b128c09f | 146 | uint64_t ds_flags; /* DS_FLAG_* */ |
34dc7c2f | 147 | blkptr_t ds_bp; |
b128c09f BB |
148 | uint64_t ds_next_clones_obj; /* DMU_OT_DSL_CLONES */ |
149 | uint64_t ds_props_obj; /* DMU_OT_DSL_PROPS for snaps */ | |
45d1cae3 BB |
150 | uint64_t ds_userrefs_obj; /* DMU_OT_USERREFS */ |
151 | uint64_t ds_pad[5]; /* pad out to 320 bytes for good measure */ | |
34dc7c2f BB |
152 | } dsl_dataset_phys_t; |
153 | ||
154 | typedef struct dsl_dataset { | |
0c66c32d | 155 | dmu_buf_user_t ds_dbu; |
cc9bb3e5 | 156 | rrwlock_t ds_bp_rwlock; /* Protects ds_phys->ds_bp */ |
0c66c32d | 157 | |
34dc7c2f BB |
158 | /* Immutable: */ |
159 | struct dsl_dir *ds_dir; | |
34dc7c2f BB |
160 | dmu_buf_t *ds_dbuf; |
161 | uint64_t ds_object; | |
162 | uint64_t ds_fsid_guid; | |
0c66c32d | 163 | boolean_t ds_is_snapshot; |
34dc7c2f | 164 | |
b128c09f BB |
165 | /* only used in syncing context, only valid for non-snapshots: */ |
166 | struct dsl_dataset *ds_prev; | |
da536844 | 167 | uint64_t ds_bookmarks; /* DMU_OTN_ZAP_METADATA */ |
34dc7c2f BB |
168 | |
169 | /* has internal locking: */ | |
428870ff BB |
170 | dsl_deadlist_t ds_deadlist; |
171 | bplist_t ds_pending_deadlist; | |
34dc7c2f BB |
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; | |
428870ff | 182 | objset_t *ds_objset; |
45d1cae3 | 183 | uint64_t ds_userrefs; |
13fe0198 | 184 | void *ds_owner; |
b128c09f BB |
185 | |
186 | /* | |
13fe0198 MA |
187 | * Long holds prevent the ds from being destroyed; they allow the |
188 | * ds to remain held even after dropping the dp_config_rwlock. | |
189 | * Owning counts as a long hold. See the comments above | |
190 | * dsl_pool_hold() for details. | |
b128c09f | 191 | */ |
13fe0198 | 192 | refcount_t ds_longholds; |
34dc7c2f BB |
193 | |
194 | /* no locking; only for making guesses */ | |
195 | uint64_t ds_trysnap_txg; | |
196 | ||
197 | /* for objset_open() */ | |
198 | kmutex_t ds_opening_lock; | |
199 | ||
200 | uint64_t ds_reserved; /* cached refreservation */ | |
201 | uint64_t ds_quota; /* cached refquota */ | |
202 | ||
37abac6d BP |
203 | kmutex_t ds_sendstream_lock; |
204 | list_t ds_sendstreams; | |
205 | ||
47dfff3b MA |
206 | /* |
207 | * When in the middle of a resumable receive, tracks how much | |
208 | * progress we have made. | |
209 | */ | |
210 | uint64_t ds_resume_object[TXG_SIZE]; | |
211 | uint64_t ds_resume_offset[TXG_SIZE]; | |
212 | uint64_t ds_resume_bytes[TXG_SIZE]; | |
213 | ||
0eb21616 JG |
214 | /* Protected by our dsl_dir's dd_lock */ |
215 | list_t ds_prop_cbs; | |
216 | ||
241b5415 MA |
217 | /* |
218 | * For ZFEATURE_FLAG_PER_DATASET features, set if this dataset | |
219 | * uses this feature. | |
220 | */ | |
221 | uint8_t ds_feature_inuse[SPA_FEATURES]; | |
222 | ||
223 | /* | |
224 | * Set if we need to activate the feature on this dataset this txg | |
225 | * (used only in syncing context). | |
226 | */ | |
227 | uint8_t ds_feature_activation_needed[SPA_FEATURES]; | |
228 | ||
34dc7c2f | 229 | /* Protected by ds_lock; keep at end of struct for better locality */ |
eca7b760 | 230 | char ds_snapname[ZFS_MAX_DATASET_NAME_LEN]; |
34dc7c2f BB |
231 | } dsl_dataset_t; |
232 | ||
d683ddbb JG |
233 | static inline dsl_dataset_phys_t * |
234 | dsl_dataset_phys(dsl_dataset_t *ds) | |
235 | { | |
236 | return (ds->ds_dbuf->db_data); | |
237 | } | |
238 | ||
572e2857 BB |
239 | /* |
240 | * The max length of a temporary tag prefix is the number of hex digits | |
241 | * required to express UINT64_MAX plus one for the hyphen. | |
242 | */ | |
243 | #define MAX_TAG_PREFIX_LEN 17 | |
244 | ||
5dc8b736 MG |
245 | #define dsl_dataset_is_snapshot(ds) \ |
246 | (dsl_dataset_phys(ds)->ds_num_children != 0) | |
247 | ||
34dc7c2f | 248 | #define DS_UNIQUE_IS_ACCURATE(ds) \ |
d683ddbb | 249 | ((dsl_dataset_phys(ds)->ds_flags & DS_FLAG_UNIQUE_ACCURATE) != 0) |
34dc7c2f | 250 | |
b5256303 TC |
251 | /* flags for holding the dataset */ |
252 | typedef enum ds_hold_flags { | |
253 | DS_HOLD_FLAG_DECRYPT = 1 << 0 /* needs access to encrypted data */ | |
254 | } ds_hold_flags_t; | |
255 | ||
13fe0198 MA |
256 | int dsl_dataset_hold(struct dsl_pool *dp, const char *name, void *tag, |
257 | dsl_dataset_t **dsp); | |
b5256303 TC |
258 | int dsl_dataset_hold_flags(struct dsl_pool *dp, const char *name, |
259 | ds_hold_flags_t flags, void *tag, dsl_dataset_t **dsp); | |
6ebebace JG |
260 | boolean_t dsl_dataset_try_add_ref(struct dsl_pool *dp, dsl_dataset_t *ds, |
261 | void *tag); | |
13fe0198 MA |
262 | int dsl_dataset_hold_obj(struct dsl_pool *dp, uint64_t dsobj, void *tag, |
263 | dsl_dataset_t **); | |
b5256303 TC |
264 | int dsl_dataset_hold_obj_flags(struct dsl_pool *dp, uint64_t dsobj, |
265 | ds_hold_flags_t flags, void *tag, dsl_dataset_t **); | |
13fe0198 | 266 | void dsl_dataset_rele(dsl_dataset_t *ds, void *tag); |
b5256303 TC |
267 | void dsl_dataset_rele_flags(dsl_dataset_t *ds, ds_hold_flags_t flags, |
268 | void *tag); | |
13fe0198 | 269 | int dsl_dataset_own(struct dsl_pool *dp, const char *name, |
b5256303 | 270 | ds_hold_flags_t flags, void *tag, dsl_dataset_t **dsp); |
b128c09f | 271 | int dsl_dataset_own_obj(struct dsl_pool *dp, uint64_t dsobj, |
b5256303 TC |
272 | ds_hold_flags_t flags, void *tag, dsl_dataset_t **dsp); |
273 | void dsl_dataset_disown(dsl_dataset_t *ds, ds_hold_flags_t flags, void *tag); | |
13fe0198 | 274 | void dsl_dataset_name(dsl_dataset_t *ds, char *name); |
eca7b760 | 275 | int dsl_dataset_namelen(dsl_dataset_t *ds); |
47dfff3b | 276 | boolean_t dsl_dataset_has_owner(dsl_dataset_t *ds); |
b5256303 | 277 | boolean_t dsl_dataset_tryown(dsl_dataset_t *ds, void *tag); |
b128c09f | 278 | uint64_t dsl_dataset_create_sync(dsl_dir_t *pds, const char *lastname, |
b5256303 TC |
279 | dsl_dataset_t *origin, uint64_t flags, cred_t *, |
280 | struct dsl_crypto_params *, dmu_tx_t *); | |
b128c09f | 281 | uint64_t dsl_dataset_create_sync_dd(dsl_dir_t *dd, dsl_dataset_t *origin, |
b5256303 | 282 | struct dsl_crypto_params *dcp, uint64_t flags, dmu_tx_t *tx); |
13fe0198 | 283 | int dsl_dataset_snapshot(nvlist_t *snaps, nvlist_t *props, nvlist_t *errors); |
428870ff | 284 | int dsl_dataset_promote(const char *name, char *conflsnap); |
13fe0198 MA |
285 | int dsl_dataset_rename_snapshot(const char *fsname, |
286 | const char *oldsnapname, const char *newsnapname, boolean_t recursive); | |
287 | int dsl_dataset_snapshot_tmp(const char *fsname, const char *snapname, | |
288 | minor_t cleanup_minor, const char *htag); | |
34dc7c2f | 289 | |
34dc7c2f | 290 | blkptr_t *dsl_dataset_get_blkptr(dsl_dataset_t *ds); |
34dc7c2f BB |
291 | |
292 | spa_t *dsl_dataset_get_spa(dsl_dataset_t *ds); | |
293 | ||
19580676 MA |
294 | boolean_t dsl_dataset_modified_since_snap(dsl_dataset_t *ds, |
295 | dsl_dataset_t *snap); | |
34dc7c2f | 296 | |
cdc15a76 DW |
297 | void dsl_dataset_sync(dsl_dataset_t *ds, zio_t *zio, dmu_tx_t *tx); |
298 | void dsl_dataset_sync_done(dsl_dataset_t *ds, dmu_tx_t *tx); | |
34dc7c2f | 299 | |
428870ff | 300 | void dsl_dataset_block_born(dsl_dataset_t *ds, const blkptr_t *bp, |
34dc7c2f | 301 | dmu_tx_t *tx); |
428870ff BB |
302 | int dsl_dataset_block_kill(dsl_dataset_t *ds, const blkptr_t *bp, |
303 | dmu_tx_t *tx, boolean_t async); | |
6772fb67 BB |
304 | int dsl_dataset_snap_lookup(dsl_dataset_t *ds, const char *name, |
305 | uint64_t *value); | |
34dc7c2f BB |
306 | |
307 | void dsl_dataset_dirty(dsl_dataset_t *ds, dmu_tx_t *tx); | |
cdc15a76 | 308 | void dsl_dataset_stats(dsl_dataset_t *ds, nvlist_t *nv); |
34dc7c2f BB |
309 | void dsl_dataset_fast_stat(dsl_dataset_t *ds, dmu_objset_stats_t *stat); |
310 | void dsl_dataset_space(dsl_dataset_t *ds, | |
311 | uint64_t *refdbytesp, uint64_t *availbytesp, | |
312 | uint64_t *usedobjsp, uint64_t *availobjsp); | |
313 | uint64_t dsl_dataset_fsid_guid(dsl_dataset_t *ds); | |
330d06f9 MA |
314 | int dsl_dataset_space_written(dsl_dataset_t *oldsnap, dsl_dataset_t *new, |
315 | uint64_t *usedp, uint64_t *compp, uint64_t *uncompp); | |
316 | int dsl_dataset_space_wouldfree(dsl_dataset_t *firstsnap, dsl_dataset_t *last, | |
317 | uint64_t *usedp, uint64_t *compp, uint64_t *uncompp); | |
04434775 | 318 | boolean_t dsl_dataset_is_dirty(dsl_dataset_t *ds); |
34dc7c2f | 319 | |
34dc7c2f BB |
320 | int dsl_dsobj_to_dsname(char *pname, uint64_t obj, char *buf); |
321 | ||
322 | int dsl_dataset_check_quota(dsl_dataset_t *ds, boolean_t check_quota, | |
323 | uint64_t asize, uint64_t inflight, uint64_t *used, | |
324 | uint64_t *ref_rsrv); | |
13fe0198 | 325 | int dsl_dataset_set_refquota(const char *dsname, zprop_source_t source, |
428870ff | 326 | uint64_t quota); |
13fe0198 | 327 | int dsl_dataset_set_refreservation(const char *dsname, zprop_source_t source, |
428870ff BB |
328 | uint64_t reservation); |
329 | ||
da536844 MA |
330 | boolean_t dsl_dataset_is_before(dsl_dataset_t *later, dsl_dataset_t *earlier, |
331 | uint64_t earlier_txg); | |
13fe0198 MA |
332 | void dsl_dataset_long_hold(dsl_dataset_t *ds, void *tag); |
333 | void dsl_dataset_long_rele(dsl_dataset_t *ds, void *tag); | |
334 | boolean_t dsl_dataset_long_held(dsl_dataset_t *ds); | |
335 | ||
336 | int dsl_dataset_clone_swap_check_impl(dsl_dataset_t *clone, | |
831baf06 | 337 | dsl_dataset_t *origin_head, boolean_t force, void *owner, dmu_tx_t *tx); |
13fe0198 MA |
338 | void dsl_dataset_clone_swap_sync_impl(dsl_dataset_t *clone, |
339 | dsl_dataset_t *origin_head, dmu_tx_t *tx); | |
340 | int dsl_dataset_snapshot_check_impl(dsl_dataset_t *ds, const char *snapname, | |
788eb90c | 341 | dmu_tx_t *tx, boolean_t recv, uint64_t cnt, cred_t *cr); |
13fe0198 MA |
342 | void dsl_dataset_snapshot_sync_impl(dsl_dataset_t *ds, const char *snapname, |
343 | dmu_tx_t *tx); | |
344 | ||
345 | void dsl_dataset_remove_from_next_clones(dsl_dataset_t *ds, uint64_t obj, | |
346 | dmu_tx_t *tx); | |
347 | void dsl_dataset_recalc_head_uniq(dsl_dataset_t *ds); | |
348 | int dsl_dataset_get_snapname(dsl_dataset_t *ds); | |
349 | int dsl_dataset_snap_lookup(dsl_dataset_t *ds, const char *name, | |
350 | uint64_t *value); | |
788eb90c JJ |
351 | int dsl_dataset_snap_remove(dsl_dataset_t *ds, const char *name, dmu_tx_t *tx, |
352 | boolean_t adj_cnt); | |
13fe0198 MA |
353 | void dsl_dataset_set_refreservation_sync_impl(dsl_dataset_t *ds, |
354 | zprop_source_t source, uint64_t value, dmu_tx_t *tx); | |
da536844 | 355 | void dsl_dataset_zapify(dsl_dataset_t *ds, dmu_tx_t *tx); |
47dfff3b MA |
356 | boolean_t dsl_dataset_is_zapified(dsl_dataset_t *ds); |
357 | boolean_t dsl_dataset_has_resume_receive_state(dsl_dataset_t *ds); | |
8ca78ab0 AG |
358 | int dsl_dataset_rollback(const char *fsname, const char *tosnap, void *owner, |
359 | nvlist_t *result); | |
34dc7c2f | 360 | |
b5256303 TC |
361 | void dsl_dataset_activate_feature(uint64_t dsobj, |
362 | spa_feature_t f, dmu_tx_t *tx); | |
241b5415 MA |
363 | void dsl_dataset_deactivate_feature(uint64_t dsobj, |
364 | spa_feature_t f, dmu_tx_t *tx); | |
365 | ||
34dc7c2f BB |
366 | #ifdef ZFS_DEBUG |
367 | #define dprintf_ds(ds, fmt, ...) do { \ | |
368 | if (zfs_flags & ZFS_DEBUG_DPRINTF) { \ | |
eca7b760 | 369 | char *__ds_name = kmem_alloc(ZFS_MAX_DATASET_NAME_LEN, KM_SLEEP); \ |
34dc7c2f BB |
370 | dsl_dataset_name(ds, __ds_name); \ |
371 | dprintf("ds=%s " fmt, __ds_name, __VA_ARGS__); \ | |
eca7b760 | 372 | kmem_free(__ds_name, ZFS_MAX_DATASET_NAME_LEN); \ |
34dc7c2f BB |
373 | } \ |
374 | _NOTE(CONSTCOND) } while (0) | |
375 | #else | |
376 | #define dprintf_ds(dd, fmt, ...) | |
377 | #endif | |
378 | ||
379 | #ifdef __cplusplus | |
380 | } | |
381 | #endif | |
382 | ||
383 | #endif /* _SYS_DSL_DATASET_H */ |