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--- old/usr/src/uts/common/sys/fs/zfs.h
+++ new/usr/src/uts/common/sys/fs/zfs.h
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
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17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21
22 22 /*
23 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 24 * Copyright (c) 2012 by Delphix. All rights reserved.
25 25 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
26 26 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
27 + * Copyright (c) 2013, Saso Kiselkov. All rights reserved.
27 28 */
28 29
29 30 /* Portions Copyright 2010 Robert Milkowski */
30 31
31 32 #ifndef _SYS_FS_ZFS_H
32 33 #define _SYS_FS_ZFS_H
33 34
34 35 #include <sys/time.h>
35 36
36 37 #ifdef __cplusplus
37 38 extern "C" {
38 39 #endif
39 40
40 41 /*
41 42 * Types and constants shared between userland and the kernel.
42 43 */
43 44
44 45 /*
45 46 * Each dataset can be one of the following types. These constants can be
46 47 * combined into masks that can be passed to various functions.
47 48 */
48 49 typedef enum {
49 50 ZFS_TYPE_FILESYSTEM = 0x1,
50 51 ZFS_TYPE_SNAPSHOT = 0x2,
51 52 ZFS_TYPE_VOLUME = 0x4,
52 53 ZFS_TYPE_POOL = 0x8
53 54 } zfs_type_t;
54 55
55 56 typedef enum dmu_objset_type {
56 57 DMU_OST_NONE,
57 58 DMU_OST_META,
58 59 DMU_OST_ZFS,
59 60 DMU_OST_ZVOL,
60 61 DMU_OST_OTHER, /* For testing only! */
61 62 DMU_OST_ANY, /* Be careful! */
62 63 DMU_OST_NUMTYPES
63 64 } dmu_objset_type_t;
64 65
65 66 #define ZFS_TYPE_DATASET \
66 67 (ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME | ZFS_TYPE_SNAPSHOT)
67 68
68 69 #define ZAP_MAXNAMELEN 256
69 70 #define ZAP_MAXVALUELEN (1024 * 8)
70 71 #define ZAP_OLDMAXVALUELEN 1024
71 72
72 73 /*
73 74 * Dataset properties are identified by these constants and must be added to
74 75 * the end of this list to ensure that external consumers are not affected
75 76 * by the change. If you make any changes to this list, be sure to update
76 77 * the property table in usr/src/common/zfs/zfs_prop.c.
77 78 */
78 79 typedef enum {
79 80 ZFS_PROP_TYPE,
80 81 ZFS_PROP_CREATION,
81 82 ZFS_PROP_USED,
82 83 ZFS_PROP_AVAILABLE,
83 84 ZFS_PROP_REFERENCED,
84 85 ZFS_PROP_COMPRESSRATIO,
85 86 ZFS_PROP_MOUNTED,
86 87 ZFS_PROP_ORIGIN,
87 88 ZFS_PROP_QUOTA,
88 89 ZFS_PROP_RESERVATION,
89 90 ZFS_PROP_VOLSIZE,
90 91 ZFS_PROP_VOLBLOCKSIZE,
91 92 ZFS_PROP_RECORDSIZE,
92 93 ZFS_PROP_MOUNTPOINT,
93 94 ZFS_PROP_SHARENFS,
94 95 ZFS_PROP_CHECKSUM,
95 96 ZFS_PROP_COMPRESSION,
96 97 ZFS_PROP_ATIME,
97 98 ZFS_PROP_DEVICES,
98 99 ZFS_PROP_EXEC,
99 100 ZFS_PROP_SETUID,
100 101 ZFS_PROP_READONLY,
101 102 ZFS_PROP_ZONED,
102 103 ZFS_PROP_SNAPDIR,
103 104 ZFS_PROP_ACLMODE,
104 105 ZFS_PROP_ACLINHERIT,
105 106 ZFS_PROP_CREATETXG, /* not exposed to the user */
106 107 ZFS_PROP_NAME, /* not exposed to the user */
107 108 ZFS_PROP_CANMOUNT,
108 109 ZFS_PROP_ISCSIOPTIONS, /* not exposed to the user */
109 110 ZFS_PROP_XATTR,
110 111 ZFS_PROP_NUMCLONES, /* not exposed to the user */
111 112 ZFS_PROP_COPIES,
112 113 ZFS_PROP_VERSION,
113 114 ZFS_PROP_UTF8ONLY,
114 115 ZFS_PROP_NORMALIZE,
115 116 ZFS_PROP_CASE,
116 117 ZFS_PROP_VSCAN,
117 118 ZFS_PROP_NBMAND,
118 119 ZFS_PROP_SHARESMB,
119 120 ZFS_PROP_REFQUOTA,
120 121 ZFS_PROP_REFRESERVATION,
121 122 ZFS_PROP_GUID,
122 123 ZFS_PROP_PRIMARYCACHE,
123 124 ZFS_PROP_SECONDARYCACHE,
124 125 ZFS_PROP_USEDSNAP,
125 126 ZFS_PROP_USEDDS,
126 127 ZFS_PROP_USEDCHILD,
127 128 ZFS_PROP_USEDREFRESERV,
128 129 ZFS_PROP_USERACCOUNTING, /* not exposed to the user */
129 130 ZFS_PROP_STMF_SHAREINFO, /* not exposed to the user */
130 131 ZFS_PROP_DEFER_DESTROY,
131 132 ZFS_PROP_USERREFS,
132 133 ZFS_PROP_LOGBIAS,
133 134 ZFS_PROP_UNIQUE, /* not exposed to the user */
134 135 ZFS_PROP_OBJSETID, /* not exposed to the user */
135 136 ZFS_PROP_DEDUP,
136 137 ZFS_PROP_MLSLABEL,
137 138 ZFS_PROP_SYNC,
138 139 ZFS_PROP_REFRATIO,
139 140 ZFS_PROP_WRITTEN,
140 141 ZFS_PROP_CLONES,
141 142 ZFS_PROP_LOGICALUSED,
142 143 ZFS_PROP_LOGICALREFERENCED,
143 144 ZFS_PROP_INCONSISTENT, /* not exposed to the user */
144 145 ZFS_NUM_PROPS
145 146 } zfs_prop_t;
146 147
147 148 typedef enum {
148 149 ZFS_PROP_USERUSED,
149 150 ZFS_PROP_USERQUOTA,
150 151 ZFS_PROP_GROUPUSED,
151 152 ZFS_PROP_GROUPQUOTA,
152 153 ZFS_NUM_USERQUOTA_PROPS
153 154 } zfs_userquota_prop_t;
154 155
155 156 extern const char *zfs_userquota_prop_prefixes[ZFS_NUM_USERQUOTA_PROPS];
156 157
157 158 /*
158 159 * Pool properties are identified by these constants and must be added to the
159 160 * end of this list to ensure that external consumers are not affected
160 161 * by the change. If you make any changes to this list, be sure to update
161 162 * the property table in usr/src/common/zfs/zpool_prop.c.
162 163 */
163 164 typedef enum {
164 165 ZPOOL_PROP_NAME,
165 166 ZPOOL_PROP_SIZE,
166 167 ZPOOL_PROP_CAPACITY,
167 168 ZPOOL_PROP_ALTROOT,
168 169 ZPOOL_PROP_HEALTH,
169 170 ZPOOL_PROP_GUID,
170 171 ZPOOL_PROP_VERSION,
171 172 ZPOOL_PROP_BOOTFS,
172 173 ZPOOL_PROP_DELEGATION,
173 174 ZPOOL_PROP_AUTOREPLACE,
174 175 ZPOOL_PROP_CACHEFILE,
175 176 ZPOOL_PROP_FAILUREMODE,
176 177 ZPOOL_PROP_LISTSNAPS,
177 178 ZPOOL_PROP_AUTOEXPAND,
178 179 ZPOOL_PROP_DEDUPDITTO,
179 180 ZPOOL_PROP_DEDUPRATIO,
180 181 ZPOOL_PROP_FREE,
181 182 ZPOOL_PROP_ALLOCATED,
182 183 ZPOOL_PROP_READONLY,
183 184 ZPOOL_PROP_COMMENT,
184 185 ZPOOL_PROP_EXPANDSZ,
185 186 ZPOOL_PROP_FREEING,
186 187 ZPOOL_NUM_PROPS
187 188 } zpool_prop_t;
188 189
189 190 /* Small enough to not hog a whole line of printout in zpool(1M). */
190 191 #define ZPROP_MAX_COMMENT 32
191 192
192 193 #define ZPROP_CONT -2
193 194 #define ZPROP_INVAL -1
194 195
195 196 #define ZPROP_VALUE "value"
196 197 #define ZPROP_SOURCE "source"
197 198
198 199 typedef enum {
199 200 ZPROP_SRC_NONE = 0x1,
200 201 ZPROP_SRC_DEFAULT = 0x2,
201 202 ZPROP_SRC_TEMPORARY = 0x4,
202 203 ZPROP_SRC_LOCAL = 0x8,
203 204 ZPROP_SRC_INHERITED = 0x10,
204 205 ZPROP_SRC_RECEIVED = 0x20
205 206 } zprop_source_t;
206 207
207 208 #define ZPROP_SRC_ALL 0x3f
208 209
209 210 #define ZPROP_SOURCE_VAL_RECVD "$recvd"
210 211 #define ZPROP_N_MORE_ERRORS "N_MORE_ERRORS"
211 212 /*
212 213 * Dataset flag implemented as a special entry in the props zap object
213 214 * indicating that the dataset has received properties on or after
214 215 * SPA_VERSION_RECVD_PROPS. The first such receive blows away local properties
215 216 * just as it did in earlier versions, and thereafter, local properties are
216 217 * preserved.
217 218 */
218 219 #define ZPROP_HAS_RECVD "$hasrecvd"
219 220
220 221 typedef enum {
221 222 ZPROP_ERR_NOCLEAR = 0x1, /* failure to clear existing props */
222 223 ZPROP_ERR_NORESTORE = 0x2 /* failure to restore props on error */
223 224 } zprop_errflags_t;
224 225
225 226 typedef int (*zprop_func)(int, void *);
226 227
227 228 /*
228 229 * Properties to be set on the root file system of a new pool
229 230 * are stuffed into their own nvlist, which is then included in
230 231 * the properties nvlist with the pool properties.
231 232 */
232 233 #define ZPOOL_ROOTFS_PROPS "root-props-nvl"
233 234
234 235 /*
235 236 * Dataset property functions shared between libzfs and kernel.
236 237 */
237 238 const char *zfs_prop_default_string(zfs_prop_t);
238 239 uint64_t zfs_prop_default_numeric(zfs_prop_t);
239 240 boolean_t zfs_prop_readonly(zfs_prop_t);
240 241 boolean_t zfs_prop_inheritable(zfs_prop_t);
241 242 boolean_t zfs_prop_setonce(zfs_prop_t);
242 243 const char *zfs_prop_to_name(zfs_prop_t);
243 244 zfs_prop_t zfs_name_to_prop(const char *);
244 245 boolean_t zfs_prop_user(const char *);
245 246 boolean_t zfs_prop_userquota(const char *);
246 247 boolean_t zfs_prop_written(const char *);
247 248 int zfs_prop_index_to_string(zfs_prop_t, uint64_t, const char **);
248 249 int zfs_prop_string_to_index(zfs_prop_t, const char *, uint64_t *);
249 250 uint64_t zfs_prop_random_value(zfs_prop_t, uint64_t seed);
250 251 boolean_t zfs_prop_valid_for_type(int, zfs_type_t);
251 252
252 253 /*
253 254 * Pool property functions shared between libzfs and kernel.
254 255 */
255 256 zpool_prop_t zpool_name_to_prop(const char *);
256 257 const char *zpool_prop_to_name(zpool_prop_t);
257 258 const char *zpool_prop_default_string(zpool_prop_t);
258 259 uint64_t zpool_prop_default_numeric(zpool_prop_t);
259 260 boolean_t zpool_prop_readonly(zpool_prop_t);
260 261 boolean_t zpool_prop_feature(const char *);
261 262 boolean_t zpool_prop_unsupported(const char *name);
262 263 int zpool_prop_index_to_string(zpool_prop_t, uint64_t, const char **);
263 264 int zpool_prop_string_to_index(zpool_prop_t, const char *, uint64_t *);
264 265 uint64_t zpool_prop_random_value(zpool_prop_t, uint64_t seed);
265 266
266 267 /*
267 268 * Definitions for the Delegation.
268 269 */
269 270 typedef enum {
270 271 ZFS_DELEG_WHO_UNKNOWN = 0,
271 272 ZFS_DELEG_USER = 'u',
272 273 ZFS_DELEG_USER_SETS = 'U',
273 274 ZFS_DELEG_GROUP = 'g',
274 275 ZFS_DELEG_GROUP_SETS = 'G',
275 276 ZFS_DELEG_EVERYONE = 'e',
276 277 ZFS_DELEG_EVERYONE_SETS = 'E',
277 278 ZFS_DELEG_CREATE = 'c',
278 279 ZFS_DELEG_CREATE_SETS = 'C',
279 280 ZFS_DELEG_NAMED_SET = 's',
280 281 ZFS_DELEG_NAMED_SET_SETS = 'S'
281 282 } zfs_deleg_who_type_t;
282 283
283 284 typedef enum {
284 285 ZFS_DELEG_NONE = 0,
285 286 ZFS_DELEG_PERM_LOCAL = 1,
286 287 ZFS_DELEG_PERM_DESCENDENT = 2,
287 288 ZFS_DELEG_PERM_LOCALDESCENDENT = 3,
288 289 ZFS_DELEG_PERM_CREATE = 4
289 290 } zfs_deleg_inherit_t;
290 291
291 292 #define ZFS_DELEG_PERM_UID "uid"
292 293 #define ZFS_DELEG_PERM_GID "gid"
293 294 #define ZFS_DELEG_PERM_GROUPS "groups"
294 295
295 296 #define ZFS_MLSLABEL_DEFAULT "none"
296 297
297 298 #define ZFS_SMB_ACL_SRC "src"
298 299 #define ZFS_SMB_ACL_TARGET "target"
299 300
300 301 typedef enum {
301 302 ZFS_CANMOUNT_OFF = 0,
302 303 ZFS_CANMOUNT_ON = 1,
303 304 ZFS_CANMOUNT_NOAUTO = 2
304 305 } zfs_canmount_type_t;
305 306
306 307 typedef enum {
307 308 ZFS_LOGBIAS_LATENCY = 0,
308 309 ZFS_LOGBIAS_THROUGHPUT = 1
309 310 } zfs_logbias_op_t;
310 311
311 312 typedef enum zfs_share_op {
312 313 ZFS_SHARE_NFS = 0,
313 314 ZFS_UNSHARE_NFS = 1,
314 315 ZFS_SHARE_SMB = 2,
315 316 ZFS_UNSHARE_SMB = 3
316 317 } zfs_share_op_t;
317 318
318 319 typedef enum zfs_smb_acl_op {
319 320 ZFS_SMB_ACL_ADD,
320 321 ZFS_SMB_ACL_REMOVE,
321 322 ZFS_SMB_ACL_RENAME,
322 323 ZFS_SMB_ACL_PURGE
323 324 } zfs_smb_acl_op_t;
324 325
325 326 typedef enum zfs_cache_type {
326 327 ZFS_CACHE_NONE = 0,
327 328 ZFS_CACHE_METADATA = 1,
328 329 ZFS_CACHE_ALL = 2
329 330 } zfs_cache_type_t;
330 331
331 332 typedef enum {
332 333 ZFS_SYNC_STANDARD = 0,
333 334 ZFS_SYNC_ALWAYS = 1,
334 335 ZFS_SYNC_DISABLED = 2
335 336 } zfs_sync_type_t;
336 337
337 338
338 339 /*
339 340 * On-disk version number.
340 341 */
341 342 #define SPA_VERSION_1 1ULL
342 343 #define SPA_VERSION_2 2ULL
343 344 #define SPA_VERSION_3 3ULL
344 345 #define SPA_VERSION_4 4ULL
345 346 #define SPA_VERSION_5 5ULL
346 347 #define SPA_VERSION_6 6ULL
347 348 #define SPA_VERSION_7 7ULL
348 349 #define SPA_VERSION_8 8ULL
349 350 #define SPA_VERSION_9 9ULL
350 351 #define SPA_VERSION_10 10ULL
351 352 #define SPA_VERSION_11 11ULL
352 353 #define SPA_VERSION_12 12ULL
353 354 #define SPA_VERSION_13 13ULL
354 355 #define SPA_VERSION_14 14ULL
355 356 #define SPA_VERSION_15 15ULL
356 357 #define SPA_VERSION_16 16ULL
357 358 #define SPA_VERSION_17 17ULL
358 359 #define SPA_VERSION_18 18ULL
359 360 #define SPA_VERSION_19 19ULL
360 361 #define SPA_VERSION_20 20ULL
361 362 #define SPA_VERSION_21 21ULL
362 363 #define SPA_VERSION_22 22ULL
363 364 #define SPA_VERSION_23 23ULL
364 365 #define SPA_VERSION_24 24ULL
365 366 #define SPA_VERSION_25 25ULL
366 367 #define SPA_VERSION_26 26ULL
367 368 #define SPA_VERSION_27 27ULL
368 369 #define SPA_VERSION_28 28ULL
369 370 #define SPA_VERSION_5000 5000ULL
370 371
371 372 /*
372 373 * When bumping up SPA_VERSION, make sure GRUB ZFS understands the on-disk
373 374 * format change. Go to usr/src/grub/grub-0.97/stage2/{zfs-include/, fsys_zfs*},
374 375 * and do the appropriate changes. Also bump the version number in
375 376 * usr/src/grub/capability.
376 377 */
377 378 #define SPA_VERSION SPA_VERSION_5000
378 379 #define SPA_VERSION_STRING "5000"
379 380
380 381 /*
381 382 * Symbolic names for the changes that caused a SPA_VERSION switch.
382 383 * Used in the code when checking for presence or absence of a feature.
383 384 * Feel free to define multiple symbolic names for each version if there
384 385 * were multiple changes to on-disk structures during that version.
385 386 *
386 387 * NOTE: When checking the current SPA_VERSION in your code, be sure
387 388 * to use spa_version() since it reports the version of the
388 389 * last synced uberblock. Checking the in-flight version can
389 390 * be dangerous in some cases.
390 391 */
391 392 #define SPA_VERSION_INITIAL SPA_VERSION_1
392 393 #define SPA_VERSION_DITTO_BLOCKS SPA_VERSION_2
393 394 #define SPA_VERSION_SPARES SPA_VERSION_3
394 395 #define SPA_VERSION_RAIDZ2 SPA_VERSION_3
395 396 #define SPA_VERSION_BPOBJ_ACCOUNT SPA_VERSION_3
396 397 #define SPA_VERSION_RAIDZ_DEFLATE SPA_VERSION_3
397 398 #define SPA_VERSION_DNODE_BYTES SPA_VERSION_3
398 399 #define SPA_VERSION_ZPOOL_HISTORY SPA_VERSION_4
399 400 #define SPA_VERSION_GZIP_COMPRESSION SPA_VERSION_5
400 401 #define SPA_VERSION_BOOTFS SPA_VERSION_6
401 402 #define SPA_VERSION_SLOGS SPA_VERSION_7
402 403 #define SPA_VERSION_DELEGATED_PERMS SPA_VERSION_8
403 404 #define SPA_VERSION_FUID SPA_VERSION_9
404 405 #define SPA_VERSION_REFRESERVATION SPA_VERSION_9
405 406 #define SPA_VERSION_REFQUOTA SPA_VERSION_9
406 407 #define SPA_VERSION_UNIQUE_ACCURATE SPA_VERSION_9
407 408 #define SPA_VERSION_L2CACHE SPA_VERSION_10
408 409 #define SPA_VERSION_NEXT_CLONES SPA_VERSION_11
409 410 #define SPA_VERSION_ORIGIN SPA_VERSION_11
410 411 #define SPA_VERSION_DSL_SCRUB SPA_VERSION_11
411 412 #define SPA_VERSION_SNAP_PROPS SPA_VERSION_12
412 413 #define SPA_VERSION_USED_BREAKDOWN SPA_VERSION_13
413 414 #define SPA_VERSION_PASSTHROUGH_X SPA_VERSION_14
414 415 #define SPA_VERSION_USERSPACE SPA_VERSION_15
415 416 #define SPA_VERSION_STMF_PROP SPA_VERSION_16
416 417 #define SPA_VERSION_RAIDZ3 SPA_VERSION_17
417 418 #define SPA_VERSION_USERREFS SPA_VERSION_18
418 419 #define SPA_VERSION_HOLES SPA_VERSION_19
419 420 #define SPA_VERSION_ZLE_COMPRESSION SPA_VERSION_20
420 421 #define SPA_VERSION_DEDUP SPA_VERSION_21
421 422 #define SPA_VERSION_RECVD_PROPS SPA_VERSION_22
422 423 #define SPA_VERSION_SLIM_ZIL SPA_VERSION_23
423 424 #define SPA_VERSION_SA SPA_VERSION_24
424 425 #define SPA_VERSION_SCAN SPA_VERSION_25
425 426 #define SPA_VERSION_DIR_CLONES SPA_VERSION_26
426 427 #define SPA_VERSION_DEADLISTS SPA_VERSION_26
427 428 #define SPA_VERSION_FAST_SNAP SPA_VERSION_27
428 429 #define SPA_VERSION_MULTI_REPLACE SPA_VERSION_28
429 430 #define SPA_VERSION_BEFORE_FEATURES SPA_VERSION_28
430 431 #define SPA_VERSION_FEATURES SPA_VERSION_5000
431 432
432 433 #define SPA_VERSION_IS_SUPPORTED(v) \
433 434 (((v) >= SPA_VERSION_INITIAL && (v) <= SPA_VERSION_BEFORE_FEATURES) || \
434 435 ((v) >= SPA_VERSION_FEATURES && (v) <= SPA_VERSION))
435 436
436 437 /*
437 438 * ZPL version - rev'd whenever an incompatible on-disk format change
438 439 * occurs. This is independent of SPA/DMU/ZAP versioning. You must
439 440 * also update the version_table[] and help message in zfs_prop.c.
440 441 *
441 442 * When changing, be sure to teach GRUB how to read the new format!
442 443 * See usr/src/grub/grub-0.97/stage2/{zfs-include/,fsys_zfs*}
443 444 */
444 445 #define ZPL_VERSION_1 1ULL
445 446 #define ZPL_VERSION_2 2ULL
446 447 #define ZPL_VERSION_3 3ULL
447 448 #define ZPL_VERSION_4 4ULL
448 449 #define ZPL_VERSION_5 5ULL
449 450 #define ZPL_VERSION ZPL_VERSION_5
450 451 #define ZPL_VERSION_STRING "5"
451 452
452 453 #define ZPL_VERSION_INITIAL ZPL_VERSION_1
453 454 #define ZPL_VERSION_DIRENT_TYPE ZPL_VERSION_2
454 455 #define ZPL_VERSION_FUID ZPL_VERSION_3
455 456 #define ZPL_VERSION_NORMALIZATION ZPL_VERSION_3
456 457 #define ZPL_VERSION_SYSATTR ZPL_VERSION_3
457 458 #define ZPL_VERSION_USERSPACE ZPL_VERSION_4
458 459 #define ZPL_VERSION_SA ZPL_VERSION_5
459 460
460 461 /* Rewind request information */
461 462 #define ZPOOL_NO_REWIND 1 /* No policy - default behavior */
462 463 #define ZPOOL_NEVER_REWIND 2 /* Do not search for best txg or rewind */
463 464 #define ZPOOL_TRY_REWIND 4 /* Search for best txg, but do not rewind */
464 465 #define ZPOOL_DO_REWIND 8 /* Rewind to best txg w/in deferred frees */
465 466 #define ZPOOL_EXTREME_REWIND 16 /* Allow extreme measures to find best txg */
466 467 #define ZPOOL_REWIND_MASK 28 /* All the possible rewind bits */
467 468 #define ZPOOL_REWIND_POLICIES 31 /* All the possible policy bits */
468 469
469 470 typedef struct zpool_rewind_policy {
470 471 uint32_t zrp_request; /* rewind behavior requested */
471 472 uint64_t zrp_maxmeta; /* max acceptable meta-data errors */
472 473 uint64_t zrp_maxdata; /* max acceptable data errors */
473 474 uint64_t zrp_txg; /* specific txg to load */
474 475 } zpool_rewind_policy_t;
475 476
476 477 /*
477 478 * The following are configuration names used in the nvlist describing a pool's
478 479 * configuration.
479 480 */
480 481 #define ZPOOL_CONFIG_VERSION "version"
481 482 #define ZPOOL_CONFIG_POOL_NAME "name"
482 483 #define ZPOOL_CONFIG_POOL_STATE "state"
483 484 #define ZPOOL_CONFIG_POOL_TXG "txg"
484 485 #define ZPOOL_CONFIG_POOL_GUID "pool_guid"
485 486 #define ZPOOL_CONFIG_CREATE_TXG "create_txg"
486 487 #define ZPOOL_CONFIG_TOP_GUID "top_guid"
487 488 #define ZPOOL_CONFIG_VDEV_TREE "vdev_tree"
488 489 #define ZPOOL_CONFIG_TYPE "type"
489 490 #define ZPOOL_CONFIG_CHILDREN "children"
490 491 #define ZPOOL_CONFIG_ID "id"
491 492 #define ZPOOL_CONFIG_GUID "guid"
492 493 #define ZPOOL_CONFIG_PATH "path"
493 494 #define ZPOOL_CONFIG_DEVID "devid"
494 495 #define ZPOOL_CONFIG_METASLAB_ARRAY "metaslab_array"
495 496 #define ZPOOL_CONFIG_METASLAB_SHIFT "metaslab_shift"
496 497 #define ZPOOL_CONFIG_ASHIFT "ashift"
497 498 #define ZPOOL_CONFIG_ASIZE "asize"
498 499 #define ZPOOL_CONFIG_DTL "DTL"
499 500 #define ZPOOL_CONFIG_SCAN_STATS "scan_stats" /* not stored on disk */
500 501 #define ZPOOL_CONFIG_VDEV_STATS "vdev_stats" /* not stored on disk */
501 502 #define ZPOOL_CONFIG_WHOLE_DISK "whole_disk"
502 503 #define ZPOOL_CONFIG_ERRCOUNT "error_count"
503 504 #define ZPOOL_CONFIG_NOT_PRESENT "not_present"
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504 505 #define ZPOOL_CONFIG_SPARES "spares"
505 506 #define ZPOOL_CONFIG_IS_SPARE "is_spare"
506 507 #define ZPOOL_CONFIG_NPARITY "nparity"
507 508 #define ZPOOL_CONFIG_HOSTID "hostid"
508 509 #define ZPOOL_CONFIG_HOSTNAME "hostname"
509 510 #define ZPOOL_CONFIG_LOADED_TIME "initial_load_time"
510 511 #define ZPOOL_CONFIG_UNSPARE "unspare"
511 512 #define ZPOOL_CONFIG_PHYS_PATH "phys_path"
512 513 #define ZPOOL_CONFIG_IS_LOG "is_log"
513 514 #define ZPOOL_CONFIG_L2CACHE "l2cache"
515 +#define ZPOOL_CONFIG_L2CACHE_PERSISTENT "l2cache_persistent"
514 516 #define ZPOOL_CONFIG_HOLE_ARRAY "hole_array"
515 517 #define ZPOOL_CONFIG_VDEV_CHILDREN "vdev_children"
516 518 #define ZPOOL_CONFIG_IS_HOLE "is_hole"
517 519 #define ZPOOL_CONFIG_DDT_HISTOGRAM "ddt_histogram"
518 520 #define ZPOOL_CONFIG_DDT_OBJ_STATS "ddt_object_stats"
519 521 #define ZPOOL_CONFIG_DDT_STATS "ddt_stats"
520 522 #define ZPOOL_CONFIG_SPLIT "splitcfg"
521 523 #define ZPOOL_CONFIG_ORIG_GUID "orig_guid"
522 524 #define ZPOOL_CONFIG_SPLIT_GUID "split_guid"
523 525 #define ZPOOL_CONFIG_SPLIT_LIST "guid_list"
524 526 #define ZPOOL_CONFIG_REMOVING "removing"
525 527 #define ZPOOL_CONFIG_RESILVERING "resilvering"
526 528 #define ZPOOL_CONFIG_COMMENT "comment"
527 529 #define ZPOOL_CONFIG_SUSPENDED "suspended" /* not stored on disk */
528 530 #define ZPOOL_CONFIG_TIMESTAMP "timestamp" /* not stored on disk */
529 531 #define ZPOOL_CONFIG_BOOTFS "bootfs" /* not stored on disk */
530 532 #define ZPOOL_CONFIG_MISSING_DEVICES "missing_vdevs" /* not stored on disk */
531 533 #define ZPOOL_CONFIG_LOAD_INFO "load_info" /* not stored on disk */
532 534 #define ZPOOL_CONFIG_REWIND_INFO "rewind_info" /* not stored on disk */
533 535 #define ZPOOL_CONFIG_UNSUP_FEAT "unsup_feat" /* not stored on disk */
534 536 #define ZPOOL_CONFIG_ENABLED_FEAT "enabled_feat" /* not stored on disk */
535 537 #define ZPOOL_CONFIG_CAN_RDONLY "can_rdonly" /* not stored on disk */
536 538 #define ZPOOL_CONFIG_FEATURES_FOR_READ "features_for_read"
537 539 #define ZPOOL_CONFIG_FEATURE_STATS "feature_stats" /* not stored on disk */
538 540 /*
539 541 * The persistent vdev state is stored as separate values rather than a single
540 542 * 'vdev_state' entry. This is because a device can be in multiple states, such
541 543 * as offline and degraded.
542 544 */
543 545 #define ZPOOL_CONFIG_OFFLINE "offline"
544 546 #define ZPOOL_CONFIG_FAULTED "faulted"
545 547 #define ZPOOL_CONFIG_DEGRADED "degraded"
546 548 #define ZPOOL_CONFIG_REMOVED "removed"
547 549 #define ZPOOL_CONFIG_FRU "fru"
548 550 #define ZPOOL_CONFIG_AUX_STATE "aux_state"
549 551
550 552 /* Rewind policy parameters */
551 553 #define ZPOOL_REWIND_POLICY "rewind-policy"
552 554 #define ZPOOL_REWIND_REQUEST "rewind-request"
553 555 #define ZPOOL_REWIND_REQUEST_TXG "rewind-request-txg"
554 556 #define ZPOOL_REWIND_META_THRESH "rewind-meta-thresh"
555 557 #define ZPOOL_REWIND_DATA_THRESH "rewind-data-thresh"
556 558
557 559 /* Rewind data discovered */
558 560 #define ZPOOL_CONFIG_LOAD_TIME "rewind_txg_ts"
559 561 #define ZPOOL_CONFIG_LOAD_DATA_ERRORS "verify_data_errors"
560 562 #define ZPOOL_CONFIG_REWIND_TIME "seconds_of_rewind"
561 563
562 564 #define VDEV_TYPE_ROOT "root"
563 565 #define VDEV_TYPE_MIRROR "mirror"
564 566 #define VDEV_TYPE_REPLACING "replacing"
565 567 #define VDEV_TYPE_RAIDZ "raidz"
566 568 #define VDEV_TYPE_DISK "disk"
567 569 #define VDEV_TYPE_FILE "file"
568 570 #define VDEV_TYPE_MISSING "missing"
569 571 #define VDEV_TYPE_HOLE "hole"
570 572 #define VDEV_TYPE_SPARE "spare"
571 573 #define VDEV_TYPE_LOG "log"
572 574 #define VDEV_TYPE_L2CACHE "l2cache"
573 575
574 576 /*
575 577 * This is needed in userland to report the minimum necessary device size.
576 578 */
577 579 #define SPA_MINDEVSIZE (64ULL << 20)
578 580
579 581 /*
580 582 * The location of the pool configuration repository, shared between kernel and
581 583 * userland.
582 584 */
583 585 #define ZPOOL_CACHE "/etc/zfs/zpool.cache"
584 586
585 587 /*
586 588 * vdev states are ordered from least to most healthy.
587 589 * A vdev that's CANT_OPEN or below is considered unusable.
588 590 */
589 591 typedef enum vdev_state {
590 592 VDEV_STATE_UNKNOWN = 0, /* Uninitialized vdev */
591 593 VDEV_STATE_CLOSED, /* Not currently open */
592 594 VDEV_STATE_OFFLINE, /* Not allowed to open */
593 595 VDEV_STATE_REMOVED, /* Explicitly removed from system */
594 596 VDEV_STATE_CANT_OPEN, /* Tried to open, but failed */
595 597 VDEV_STATE_FAULTED, /* External request to fault device */
596 598 VDEV_STATE_DEGRADED, /* Replicated vdev with unhealthy kids */
597 599 VDEV_STATE_HEALTHY /* Presumed good */
598 600 } vdev_state_t;
599 601
600 602 #define VDEV_STATE_ONLINE VDEV_STATE_HEALTHY
601 603
602 604 /*
603 605 * vdev aux states. When a vdev is in the CANT_OPEN state, the aux field
604 606 * of the vdev stats structure uses these constants to distinguish why.
605 607 */
606 608 typedef enum vdev_aux {
607 609 VDEV_AUX_NONE, /* no error */
608 610 VDEV_AUX_OPEN_FAILED, /* ldi_open_*() or vn_open() failed */
609 611 VDEV_AUX_CORRUPT_DATA, /* bad label or disk contents */
610 612 VDEV_AUX_NO_REPLICAS, /* insufficient number of replicas */
611 613 VDEV_AUX_BAD_GUID_SUM, /* vdev guid sum doesn't match */
612 614 VDEV_AUX_TOO_SMALL, /* vdev size is too small */
613 615 VDEV_AUX_BAD_LABEL, /* the label is OK but invalid */
614 616 VDEV_AUX_VERSION_NEWER, /* on-disk version is too new */
615 617 VDEV_AUX_VERSION_OLDER, /* on-disk version is too old */
616 618 VDEV_AUX_UNSUP_FEAT, /* unsupported features */
617 619 VDEV_AUX_SPARED, /* hot spare used in another pool */
618 620 VDEV_AUX_ERR_EXCEEDED, /* too many errors */
619 621 VDEV_AUX_IO_FAILURE, /* experienced I/O failure */
620 622 VDEV_AUX_BAD_LOG, /* cannot read log chain(s) */
621 623 VDEV_AUX_EXTERNAL, /* external diagnosis */
622 624 VDEV_AUX_SPLIT_POOL /* vdev was split off into another pool */
623 625 } vdev_aux_t;
624 626
625 627 /*
626 628 * pool state. The following states are written to disk as part of the normal
627 629 * SPA lifecycle: ACTIVE, EXPORTED, DESTROYED, SPARE, L2CACHE. The remaining
628 630 * states are software abstractions used at various levels to communicate
629 631 * pool state.
630 632 */
631 633 typedef enum pool_state {
632 634 POOL_STATE_ACTIVE = 0, /* In active use */
633 635 POOL_STATE_EXPORTED, /* Explicitly exported */
634 636 POOL_STATE_DESTROYED, /* Explicitly destroyed */
635 637 POOL_STATE_SPARE, /* Reserved for hot spare use */
636 638 POOL_STATE_L2CACHE, /* Level 2 ARC device */
637 639 POOL_STATE_UNINITIALIZED, /* Internal spa_t state */
638 640 POOL_STATE_UNAVAIL, /* Internal libzfs state */
639 641 POOL_STATE_POTENTIALLY_ACTIVE /* Internal libzfs state */
640 642 } pool_state_t;
641 643
642 644 /*
643 645 * Scan Functions.
644 646 */
645 647 typedef enum pool_scan_func {
646 648 POOL_SCAN_NONE,
647 649 POOL_SCAN_SCRUB,
648 650 POOL_SCAN_RESILVER,
649 651 POOL_SCAN_FUNCS
650 652 } pool_scan_func_t;
651 653
652 654 /*
653 655 * ZIO types. Needed to interpret vdev statistics below.
654 656 */
655 657 typedef enum zio_type {
656 658 ZIO_TYPE_NULL = 0,
657 659 ZIO_TYPE_READ,
658 660 ZIO_TYPE_WRITE,
659 661 ZIO_TYPE_FREE,
660 662 ZIO_TYPE_CLAIM,
661 663 ZIO_TYPE_IOCTL,
662 664 ZIO_TYPES
663 665 } zio_type_t;
664 666
665 667 /*
666 668 * Pool statistics. Note: all fields should be 64-bit because this
667 669 * is passed between kernel and userland as an nvlist uint64 array.
668 670 */
669 671 typedef struct pool_scan_stat {
670 672 /* values stored on disk */
671 673 uint64_t pss_func; /* pool_scan_func_t */
672 674 uint64_t pss_state; /* dsl_scan_state_t */
673 675 uint64_t pss_start_time; /* scan start time */
674 676 uint64_t pss_end_time; /* scan end time */
675 677 uint64_t pss_to_examine; /* total bytes to scan */
676 678 uint64_t pss_examined; /* total examined bytes */
677 679 uint64_t pss_to_process; /* total bytes to process */
678 680 uint64_t pss_processed; /* total processed bytes */
679 681 uint64_t pss_errors; /* scan errors */
680 682
681 683 /* values not stored on disk */
682 684 uint64_t pss_pass_exam; /* examined bytes per scan pass */
683 685 uint64_t pss_pass_start; /* start time of a scan pass */
684 686 } pool_scan_stat_t;
685 687
686 688 typedef enum dsl_scan_state {
687 689 DSS_NONE,
688 690 DSS_SCANNING,
689 691 DSS_FINISHED,
690 692 DSS_CANCELED,
691 693 DSS_NUM_STATES
692 694 } dsl_scan_state_t;
693 695
694 696
695 697 /*
696 698 * Vdev statistics. Note: all fields should be 64-bit because this
697 699 * is passed between kernel and userland as an nvlist uint64 array.
698 700 */
699 701 typedef struct vdev_stat {
700 702 hrtime_t vs_timestamp; /* time since vdev load */
701 703 uint64_t vs_state; /* vdev state */
702 704 uint64_t vs_aux; /* see vdev_aux_t */
703 705 uint64_t vs_alloc; /* space allocated */
704 706 uint64_t vs_space; /* total capacity */
705 707 uint64_t vs_dspace; /* deflated capacity */
706 708 uint64_t vs_rsize; /* replaceable dev size */
707 709 uint64_t vs_esize; /* expandable dev size */
708 710 uint64_t vs_ops[ZIO_TYPES]; /* operation count */
709 711 uint64_t vs_bytes[ZIO_TYPES]; /* bytes read/written */
710 712 uint64_t vs_read_errors; /* read errors */
711 713 uint64_t vs_write_errors; /* write errors */
712 714 uint64_t vs_checksum_errors; /* checksum errors */
713 715 uint64_t vs_self_healed; /* self-healed bytes */
714 716 uint64_t vs_scan_removing; /* removing? */
715 717 uint64_t vs_scan_processed; /* scan processed bytes */
716 718 } vdev_stat_t;
717 719
718 720 /*
719 721 * DDT statistics. Note: all fields should be 64-bit because this
720 722 * is passed between kernel and userland as an nvlist uint64 array.
721 723 */
722 724 typedef struct ddt_object {
723 725 uint64_t ddo_count; /* number of elments in ddt */
724 726 uint64_t ddo_dspace; /* size of ddt on disk */
725 727 uint64_t ddo_mspace; /* size of ddt in-core */
726 728 } ddt_object_t;
727 729
728 730 typedef struct ddt_stat {
729 731 uint64_t dds_blocks; /* blocks */
730 732 uint64_t dds_lsize; /* logical size */
731 733 uint64_t dds_psize; /* physical size */
732 734 uint64_t dds_dsize; /* deflated allocated size */
733 735 uint64_t dds_ref_blocks; /* referenced blocks */
734 736 uint64_t dds_ref_lsize; /* referenced lsize * refcnt */
735 737 uint64_t dds_ref_psize; /* referenced psize * refcnt */
736 738 uint64_t dds_ref_dsize; /* referenced dsize * refcnt */
737 739 } ddt_stat_t;
738 740
739 741 typedef struct ddt_histogram {
740 742 ddt_stat_t ddh_stat[64]; /* power-of-two histogram buckets */
741 743 } ddt_histogram_t;
742 744
743 745 #define ZVOL_DRIVER "zvol"
744 746 #define ZFS_DRIVER "zfs"
745 747 #define ZFS_DEV "/dev/zfs"
746 748
747 749 /* general zvol path */
748 750 #define ZVOL_DIR "/dev/zvol"
749 751 /* expansion */
750 752 #define ZVOL_PSEUDO_DEV "/devices/pseudo/zfs@0:"
751 753 /* for dump and swap */
752 754 #define ZVOL_FULL_DEV_DIR ZVOL_DIR "/dsk/"
753 755 #define ZVOL_FULL_RDEV_DIR ZVOL_DIR "/rdsk/"
754 756
755 757 #define ZVOL_PROP_NAME "name"
756 758 #define ZVOL_DEFAULT_BLOCKSIZE 8192
757 759
758 760 /*
759 761 * /dev/zfs ioctl numbers.
760 762 */
761 763 typedef enum zfs_ioc {
762 764 ZFS_IOC_FIRST = ('Z' << 8),
763 765 ZFS_IOC = ZFS_IOC_FIRST,
764 766 ZFS_IOC_POOL_CREATE = ZFS_IOC_FIRST,
765 767 ZFS_IOC_POOL_DESTROY,
766 768 ZFS_IOC_POOL_IMPORT,
767 769 ZFS_IOC_POOL_EXPORT,
768 770 ZFS_IOC_POOL_CONFIGS,
769 771 ZFS_IOC_POOL_STATS,
770 772 ZFS_IOC_POOL_TRYIMPORT,
771 773 ZFS_IOC_POOL_SCAN,
772 774 ZFS_IOC_POOL_FREEZE,
773 775 ZFS_IOC_POOL_UPGRADE,
774 776 ZFS_IOC_POOL_GET_HISTORY,
775 777 ZFS_IOC_VDEV_ADD,
776 778 ZFS_IOC_VDEV_REMOVE,
777 779 ZFS_IOC_VDEV_SET_STATE,
778 780 ZFS_IOC_VDEV_ATTACH,
779 781 ZFS_IOC_VDEV_DETACH,
780 782 ZFS_IOC_VDEV_SETPATH,
781 783 ZFS_IOC_VDEV_SETFRU,
782 784 ZFS_IOC_OBJSET_STATS,
783 785 ZFS_IOC_OBJSET_ZPLPROPS,
784 786 ZFS_IOC_DATASET_LIST_NEXT,
785 787 ZFS_IOC_SNAPSHOT_LIST_NEXT,
786 788 ZFS_IOC_SET_PROP,
787 789 ZFS_IOC_CREATE,
788 790 ZFS_IOC_DESTROY,
789 791 ZFS_IOC_ROLLBACK,
790 792 ZFS_IOC_RENAME,
791 793 ZFS_IOC_RECV,
792 794 ZFS_IOC_SEND,
793 795 ZFS_IOC_INJECT_FAULT,
794 796 ZFS_IOC_CLEAR_FAULT,
795 797 ZFS_IOC_INJECT_LIST_NEXT,
796 798 ZFS_IOC_ERROR_LOG,
797 799 ZFS_IOC_CLEAR,
798 800 ZFS_IOC_PROMOTE,
799 801 ZFS_IOC_SNAPSHOT,
800 802 ZFS_IOC_DSOBJ_TO_DSNAME,
801 803 ZFS_IOC_OBJ_TO_PATH,
802 804 ZFS_IOC_POOL_SET_PROPS,
803 805 ZFS_IOC_POOL_GET_PROPS,
804 806 ZFS_IOC_SET_FSACL,
805 807 ZFS_IOC_GET_FSACL,
806 808 ZFS_IOC_SHARE,
807 809 ZFS_IOC_INHERIT_PROP,
808 810 ZFS_IOC_SMB_ACL,
809 811 ZFS_IOC_USERSPACE_ONE,
810 812 ZFS_IOC_USERSPACE_MANY,
811 813 ZFS_IOC_USERSPACE_UPGRADE,
812 814 ZFS_IOC_HOLD,
813 815 ZFS_IOC_RELEASE,
814 816 ZFS_IOC_GET_HOLDS,
815 817 ZFS_IOC_OBJSET_RECVD_PROPS,
816 818 ZFS_IOC_VDEV_SPLIT,
817 819 ZFS_IOC_NEXT_OBJ,
818 820 ZFS_IOC_DIFF,
819 821 ZFS_IOC_TMP_SNAPSHOT,
820 822 ZFS_IOC_OBJ_TO_STATS,
821 823 ZFS_IOC_SPACE_WRITTEN,
822 824 ZFS_IOC_SPACE_SNAPS,
823 825 ZFS_IOC_DESTROY_SNAPS,
824 826 ZFS_IOC_POOL_REGUID,
825 827 ZFS_IOC_POOL_REOPEN,
826 828 ZFS_IOC_SEND_PROGRESS,
827 829 ZFS_IOC_LOG_HISTORY,
828 830 ZFS_IOC_SEND_NEW,
829 831 ZFS_IOC_SEND_SPACE,
830 832 ZFS_IOC_CLONE,
831 833 ZFS_IOC_LAST
832 834 } zfs_ioc_t;
833 835
834 836 /*
835 837 * Internal SPA load state. Used by FMA diagnosis engine.
836 838 */
837 839 typedef enum {
838 840 SPA_LOAD_NONE, /* no load in progress */
839 841 SPA_LOAD_OPEN, /* normal open */
840 842 SPA_LOAD_IMPORT, /* import in progress */
841 843 SPA_LOAD_TRYIMPORT, /* tryimport in progress */
842 844 SPA_LOAD_RECOVER, /* recovery requested */
843 845 SPA_LOAD_ERROR /* load failed */
844 846 } spa_load_state_t;
845 847
846 848 /*
847 849 * Bookmark name values.
848 850 */
849 851 #define ZPOOL_ERR_LIST "error list"
850 852 #define ZPOOL_ERR_DATASET "dataset"
851 853 #define ZPOOL_ERR_OBJECT "object"
852 854
853 855 #define HIS_MAX_RECORD_LEN (MAXPATHLEN + MAXPATHLEN + 1)
854 856
855 857 /*
856 858 * The following are names used in the nvlist describing
857 859 * the pool's history log.
858 860 */
859 861 #define ZPOOL_HIST_RECORD "history record"
860 862 #define ZPOOL_HIST_TIME "history time"
861 863 #define ZPOOL_HIST_CMD "history command"
862 864 #define ZPOOL_HIST_WHO "history who"
863 865 #define ZPOOL_HIST_ZONE "history zone"
864 866 #define ZPOOL_HIST_HOST "history hostname"
865 867 #define ZPOOL_HIST_TXG "history txg"
866 868 #define ZPOOL_HIST_INT_EVENT "history internal event"
867 869 #define ZPOOL_HIST_INT_STR "history internal str"
868 870 #define ZPOOL_HIST_INT_NAME "internal_name"
869 871 #define ZPOOL_HIST_IOCTL "ioctl"
870 872 #define ZPOOL_HIST_INPUT_NVL "in_nvl"
871 873 #define ZPOOL_HIST_OUTPUT_NVL "out_nvl"
872 874 #define ZPOOL_HIST_DSNAME "dsname"
873 875 #define ZPOOL_HIST_DSID "dsid"
874 876
875 877 /*
876 878 * Flags for ZFS_IOC_VDEV_SET_STATE
877 879 */
878 880 #define ZFS_ONLINE_CHECKREMOVE 0x1
879 881 #define ZFS_ONLINE_UNSPARE 0x2
880 882 #define ZFS_ONLINE_FORCEFAULT 0x4
881 883 #define ZFS_ONLINE_EXPAND 0x8
882 884 #define ZFS_OFFLINE_TEMPORARY 0x1
883 885
884 886 /*
885 887 * Flags for ZFS_IOC_POOL_IMPORT
886 888 */
887 889 #define ZFS_IMPORT_NORMAL 0x0
888 890 #define ZFS_IMPORT_VERBATIM 0x1
889 891 #define ZFS_IMPORT_ANY_HOST 0x2
890 892 #define ZFS_IMPORT_MISSING_LOG 0x4
891 893 #define ZFS_IMPORT_ONLY 0x8
892 894
893 895 /*
894 896 * Sysevent payload members. ZFS will generate the following sysevents with the
895 897 * given payloads:
896 898 *
897 899 * ESC_ZFS_RESILVER_START
898 900 * ESC_ZFS_RESILVER_END
899 901 * ESC_ZFS_POOL_DESTROY
900 902 * ESC_ZFS_POOL_REGUID
901 903 *
902 904 * ZFS_EV_POOL_NAME DATA_TYPE_STRING
903 905 * ZFS_EV_POOL_GUID DATA_TYPE_UINT64
904 906 *
905 907 * ESC_ZFS_VDEV_REMOVE
906 908 * ESC_ZFS_VDEV_CLEAR
907 909 * ESC_ZFS_VDEV_CHECK
908 910 *
909 911 * ZFS_EV_POOL_NAME DATA_TYPE_STRING
910 912 * ZFS_EV_POOL_GUID DATA_TYPE_UINT64
911 913 * ZFS_EV_VDEV_PATH DATA_TYPE_STRING (optional)
912 914 * ZFS_EV_VDEV_GUID DATA_TYPE_UINT64
913 915 */
914 916 #define ZFS_EV_POOL_NAME "pool_name"
915 917 #define ZFS_EV_POOL_GUID "pool_guid"
916 918 #define ZFS_EV_VDEV_PATH "vdev_path"
917 919 #define ZFS_EV_VDEV_GUID "vdev_guid"
918 920
919 921 #ifdef __cplusplus
920 922 }
921 923 #endif
922 924
923 925 #endif /* _SYS_FS_ZFS_H */
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