zfs.h revision 324010
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 22/* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2011, 2014 by Delphix. All rights reserved. 25 * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 26 * Copyright (c) 2013, Joyent, Inc. All rights reserved. 27 * Copyright (c) 2012, Martin Matuska <mm@FreeBSD.org>. All rights reserved. 28 * Copyright (c) 2014 Integros [integros.com] 29 * Copyright (c) 2017 Datto Inc. 30 */ 31 32/* Portions Copyright 2010 Robert Milkowski */ 33 34#ifndef _SYS_FS_ZFS_H 35#define _SYS_FS_ZFS_H 36 37#include <sys/types.h> 38#include <sys/ioccom.h> 39#include <sys/time.h> 40 41#ifdef __cplusplus 42extern "C" { 43#endif 44 45/* 46 * Types and constants shared between userland and the kernel. 47 */ 48 49/* 50 * Each dataset can be one of the following types. These constants can be 51 * combined into masks that can be passed to various functions. 52 */ 53typedef enum { 54 ZFS_TYPE_FILESYSTEM = (1 << 0), 55 ZFS_TYPE_SNAPSHOT = (1 << 1), 56 ZFS_TYPE_VOLUME = (1 << 2), 57 ZFS_TYPE_POOL = (1 << 3), 58 ZFS_TYPE_BOOKMARK = (1 << 4) 59} zfs_type_t; 60 61/* 62 * NB: lzc_dataset_type should be updated whenever a new objset type is added, 63 * if it represents a real type of a dataset that can be created from userland. 64 */ 65typedef enum dmu_objset_type { 66 DMU_OST_NONE, 67 DMU_OST_META, 68 DMU_OST_ZFS, 69 DMU_OST_ZVOL, 70 DMU_OST_OTHER, /* For testing only! */ 71 DMU_OST_ANY, /* Be careful! */ 72 DMU_OST_NUMTYPES 73} dmu_objset_type_t; 74 75#define ZFS_TYPE_DATASET \ 76 (ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME | ZFS_TYPE_SNAPSHOT) 77 78/* 79 * All of these include the terminating NUL byte. 80 */ 81#define ZAP_MAXNAMELEN 256 82#define ZAP_MAXVALUELEN (1024 * 8) 83#define ZAP_OLDMAXVALUELEN 1024 84#define ZFS_MAX_DATASET_NAME_LEN 256 85 86/* 87 * Dataset properties are identified by these constants and must be added to 88 * the end of this list to ensure that external consumers are not affected 89 * by the change. If you make any changes to this list, be sure to update 90 * the property table in usr/src/common/zfs/zfs_prop.c. 91 */ 92typedef enum { 93 ZFS_PROP_TYPE, 94 ZFS_PROP_CREATION, 95 ZFS_PROP_USED, 96 ZFS_PROP_AVAILABLE, 97 ZFS_PROP_REFERENCED, 98 ZFS_PROP_COMPRESSRATIO, 99 ZFS_PROP_MOUNTED, 100 ZFS_PROP_ORIGIN, 101 ZFS_PROP_QUOTA, 102 ZFS_PROP_RESERVATION, 103 ZFS_PROP_VOLSIZE, 104 ZFS_PROP_VOLBLOCKSIZE, 105 ZFS_PROP_RECORDSIZE, 106 ZFS_PROP_MOUNTPOINT, 107 ZFS_PROP_SHARENFS, 108 ZFS_PROP_CHECKSUM, 109 ZFS_PROP_COMPRESSION, 110 ZFS_PROP_ATIME, 111 ZFS_PROP_DEVICES, 112 ZFS_PROP_EXEC, 113 ZFS_PROP_SETUID, 114 ZFS_PROP_READONLY, 115 ZFS_PROP_ZONED, 116 ZFS_PROP_SNAPDIR, 117 ZFS_PROP_ACLMODE, 118 ZFS_PROP_ACLINHERIT, 119 ZFS_PROP_CREATETXG, /* not exposed to the user */ 120 ZFS_PROP_NAME, /* not exposed to the user */ 121 ZFS_PROP_CANMOUNT, 122 ZFS_PROP_ISCSIOPTIONS, /* not exposed to the user */ 123 ZFS_PROP_XATTR, 124 ZFS_PROP_NUMCLONES, /* not exposed to the user */ 125 ZFS_PROP_COPIES, 126 ZFS_PROP_VERSION, 127 ZFS_PROP_UTF8ONLY, 128 ZFS_PROP_NORMALIZE, 129 ZFS_PROP_CASE, 130 ZFS_PROP_VSCAN, 131 ZFS_PROP_NBMAND, 132 ZFS_PROP_SHARESMB, 133 ZFS_PROP_REFQUOTA, 134 ZFS_PROP_REFRESERVATION, 135 ZFS_PROP_GUID, 136 ZFS_PROP_PRIMARYCACHE, 137 ZFS_PROP_SECONDARYCACHE, 138 ZFS_PROP_USEDSNAP, 139 ZFS_PROP_USEDDS, 140 ZFS_PROP_USEDCHILD, 141 ZFS_PROP_USEDREFRESERV, 142 ZFS_PROP_USERACCOUNTING, /* not exposed to the user */ 143 ZFS_PROP_STMF_SHAREINFO, /* not exposed to the user */ 144 ZFS_PROP_DEFER_DESTROY, 145 ZFS_PROP_USERREFS, 146 ZFS_PROP_LOGBIAS, 147 ZFS_PROP_UNIQUE, /* not exposed to the user */ 148 ZFS_PROP_OBJSETID, /* not exposed to the user */ 149 ZFS_PROP_DEDUP, 150 ZFS_PROP_MLSLABEL, 151 ZFS_PROP_SYNC, 152 ZFS_PROP_REFRATIO, 153 ZFS_PROP_WRITTEN, 154 ZFS_PROP_CLONES, 155 ZFS_PROP_LOGICALUSED, 156 ZFS_PROP_LOGICALREFERENCED, 157 ZFS_PROP_INCONSISTENT, /* not exposed to the user */ 158 ZFS_PROP_VOLMODE, 159 ZFS_PROP_FILESYSTEM_LIMIT, 160 ZFS_PROP_SNAPSHOT_LIMIT, 161 ZFS_PROP_FILESYSTEM_COUNT, 162 ZFS_PROP_SNAPSHOT_COUNT, 163 ZFS_PROP_REDUNDANT_METADATA, 164 ZFS_PROP_PREV_SNAP, 165 ZFS_PROP_RECEIVE_RESUME_TOKEN, 166 ZFS_NUM_PROPS 167} zfs_prop_t; 168 169typedef enum { 170 ZFS_PROP_USERUSED, 171 ZFS_PROP_USERQUOTA, 172 ZFS_PROP_GROUPUSED, 173 ZFS_PROP_GROUPQUOTA, 174 ZFS_NUM_USERQUOTA_PROPS 175} zfs_userquota_prop_t; 176 177extern const char *zfs_userquota_prop_prefixes[ZFS_NUM_USERQUOTA_PROPS]; 178 179/* 180 * Pool properties are identified by these constants and must be added to the 181 * end of this list to ensure that external consumers are not affected 182 * by the change. If you make any changes to this list, be sure to update 183 * the property table in usr/src/common/zfs/zpool_prop.c. 184 */ 185typedef enum { 186 ZPOOL_PROP_NAME, 187 ZPOOL_PROP_SIZE, 188 ZPOOL_PROP_CAPACITY, 189 ZPOOL_PROP_ALTROOT, 190 ZPOOL_PROP_HEALTH, 191 ZPOOL_PROP_GUID, 192 ZPOOL_PROP_VERSION, 193 ZPOOL_PROP_BOOTFS, 194 ZPOOL_PROP_DELEGATION, 195 ZPOOL_PROP_AUTOREPLACE, 196 ZPOOL_PROP_CACHEFILE, 197 ZPOOL_PROP_FAILUREMODE, 198 ZPOOL_PROP_LISTSNAPS, 199 ZPOOL_PROP_AUTOEXPAND, 200 ZPOOL_PROP_DEDUPDITTO, 201 ZPOOL_PROP_DEDUPRATIO, 202 ZPOOL_PROP_FREE, 203 ZPOOL_PROP_ALLOCATED, 204 ZPOOL_PROP_READONLY, 205 ZPOOL_PROP_COMMENT, 206 ZPOOL_PROP_EXPANDSZ, 207 ZPOOL_PROP_FREEING, 208 ZPOOL_PROP_FRAGMENTATION, 209 ZPOOL_PROP_LEAKED, 210 ZPOOL_PROP_MAXBLOCKSIZE, 211 ZPOOL_NUM_PROPS 212} zpool_prop_t; 213 214/* Small enough to not hog a whole line of printout in zpool(1M). */ 215#define ZPROP_MAX_COMMENT 32 216 217#define ZPROP_CONT -2 218#define ZPROP_INVAL -1 219 220#define ZPROP_VALUE "value" 221#define ZPROP_SOURCE "source" 222 223typedef enum { 224 ZPROP_SRC_NONE = 0x1, 225 ZPROP_SRC_DEFAULT = 0x2, 226 ZPROP_SRC_TEMPORARY = 0x4, 227 ZPROP_SRC_LOCAL = 0x8, 228 ZPROP_SRC_INHERITED = 0x10, 229 ZPROP_SRC_RECEIVED = 0x20 230} zprop_source_t; 231 232#define ZPROP_SRC_ALL 0x3f 233 234#define ZPROP_SOURCE_VAL_RECVD "$recvd" 235#define ZPROP_N_MORE_ERRORS "N_MORE_ERRORS" 236/* 237 * Dataset flag implemented as a special entry in the props zap object 238 * indicating that the dataset has received properties on or after 239 * SPA_VERSION_RECVD_PROPS. The first such receive blows away local properties 240 * just as it did in earlier versions, and thereafter, local properties are 241 * preserved. 242 */ 243#define ZPROP_HAS_RECVD "$hasrecvd" 244 245typedef enum { 246 ZPROP_ERR_NOCLEAR = 0x1, /* failure to clear existing props */ 247 ZPROP_ERR_NORESTORE = 0x2 /* failure to restore props on error */ 248} zprop_errflags_t; 249 250typedef int (*zprop_func)(int, void *); 251 252/* 253 * Properties to be set on the root file system of a new pool 254 * are stuffed into their own nvlist, which is then included in 255 * the properties nvlist with the pool properties. 256 */ 257#define ZPOOL_ROOTFS_PROPS "root-props-nvl" 258 259/* 260 * Dataset property functions shared between libzfs and kernel. 261 */ 262const char *zfs_prop_default_string(zfs_prop_t); 263uint64_t zfs_prop_default_numeric(zfs_prop_t); 264boolean_t zfs_prop_readonly(zfs_prop_t); 265boolean_t zfs_prop_inheritable(zfs_prop_t); 266boolean_t zfs_prop_setonce(zfs_prop_t); 267const char *zfs_prop_to_name(zfs_prop_t); 268zfs_prop_t zfs_name_to_prop(const char *); 269boolean_t zfs_prop_user(const char *); 270boolean_t zfs_prop_userquota(const char *); 271int zfs_prop_index_to_string(zfs_prop_t, uint64_t, const char **); 272int zfs_prop_string_to_index(zfs_prop_t, const char *, uint64_t *); 273uint64_t zfs_prop_random_value(zfs_prop_t, uint64_t seed); 274boolean_t zfs_prop_valid_for_type(int, zfs_type_t); 275 276/* 277 * Pool property functions shared between libzfs and kernel. 278 */ 279zpool_prop_t zpool_name_to_prop(const char *); 280const char *zpool_prop_to_name(zpool_prop_t); 281const char *zpool_prop_default_string(zpool_prop_t); 282uint64_t zpool_prop_default_numeric(zpool_prop_t); 283boolean_t zpool_prop_readonly(zpool_prop_t); 284boolean_t zpool_prop_feature(const char *); 285boolean_t zpool_prop_unsupported(const char *name); 286int zpool_prop_index_to_string(zpool_prop_t, uint64_t, const char **); 287int zpool_prop_string_to_index(zpool_prop_t, const char *, uint64_t *); 288uint64_t zpool_prop_random_value(zpool_prop_t, uint64_t seed); 289 290/* 291 * Definitions for the Delegation. 292 */ 293typedef enum { 294 ZFS_DELEG_WHO_UNKNOWN = 0, 295 ZFS_DELEG_USER = 'u', 296 ZFS_DELEG_USER_SETS = 'U', 297 ZFS_DELEG_GROUP = 'g', 298 ZFS_DELEG_GROUP_SETS = 'G', 299 ZFS_DELEG_EVERYONE = 'e', 300 ZFS_DELEG_EVERYONE_SETS = 'E', 301 ZFS_DELEG_CREATE = 'c', 302 ZFS_DELEG_CREATE_SETS = 'C', 303 ZFS_DELEG_NAMED_SET = 's', 304 ZFS_DELEG_NAMED_SET_SETS = 'S' 305} zfs_deleg_who_type_t; 306 307typedef enum { 308 ZFS_DELEG_NONE = 0, 309 ZFS_DELEG_PERM_LOCAL = 1, 310 ZFS_DELEG_PERM_DESCENDENT = 2, 311 ZFS_DELEG_PERM_LOCALDESCENDENT = 3, 312 ZFS_DELEG_PERM_CREATE = 4 313} zfs_deleg_inherit_t; 314 315#define ZFS_DELEG_PERM_UID "uid" 316#define ZFS_DELEG_PERM_GID "gid" 317#define ZFS_DELEG_PERM_GROUPS "groups" 318 319#define ZFS_MLSLABEL_DEFAULT "none" 320 321#define ZFS_SMB_ACL_SRC "src" 322#define ZFS_SMB_ACL_TARGET "target" 323 324typedef enum { 325 ZFS_CANMOUNT_OFF = 0, 326 ZFS_CANMOUNT_ON = 1, 327 ZFS_CANMOUNT_NOAUTO = 2 328} zfs_canmount_type_t; 329 330typedef enum { 331 ZFS_LOGBIAS_LATENCY = 0, 332 ZFS_LOGBIAS_THROUGHPUT = 1 333} zfs_logbias_op_t; 334 335typedef enum zfs_share_op { 336 ZFS_SHARE_NFS = 0, 337 ZFS_UNSHARE_NFS = 1, 338 ZFS_SHARE_SMB = 2, 339 ZFS_UNSHARE_SMB = 3 340} zfs_share_op_t; 341 342typedef enum zfs_smb_acl_op { 343 ZFS_SMB_ACL_ADD, 344 ZFS_SMB_ACL_REMOVE, 345 ZFS_SMB_ACL_RENAME, 346 ZFS_SMB_ACL_PURGE 347} zfs_smb_acl_op_t; 348 349typedef enum zfs_cache_type { 350 ZFS_CACHE_NONE = 0, 351 ZFS_CACHE_METADATA = 1, 352 ZFS_CACHE_ALL = 2 353} zfs_cache_type_t; 354 355typedef enum { 356 ZFS_SYNC_STANDARD = 0, 357 ZFS_SYNC_ALWAYS = 1, 358 ZFS_SYNC_DISABLED = 2 359} zfs_sync_type_t; 360 361typedef enum { 362 ZFS_VOLMODE_DEFAULT = 0, 363 ZFS_VOLMODE_GEOM = 1, 364 ZFS_VOLMODE_DEV = 2, 365 ZFS_VOLMODE_NONE = 3 366} zfs_volmode_t; 367 368typedef enum { 369 ZFS_REDUNDANT_METADATA_ALL, 370 ZFS_REDUNDANT_METADATA_MOST 371} zfs_redundant_metadata_type_t; 372 373/* 374 * On-disk version number. 375 */ 376#define SPA_VERSION_1 1ULL 377#define SPA_VERSION_2 2ULL 378#define SPA_VERSION_3 3ULL 379#define SPA_VERSION_4 4ULL 380#define SPA_VERSION_5 5ULL 381#define SPA_VERSION_6 6ULL 382#define SPA_VERSION_7 7ULL 383#define SPA_VERSION_8 8ULL 384#define SPA_VERSION_9 9ULL 385#define SPA_VERSION_10 10ULL 386#define SPA_VERSION_11 11ULL 387#define SPA_VERSION_12 12ULL 388#define SPA_VERSION_13 13ULL 389#define SPA_VERSION_14 14ULL 390#define SPA_VERSION_15 15ULL 391#define SPA_VERSION_16 16ULL 392#define SPA_VERSION_17 17ULL 393#define SPA_VERSION_18 18ULL 394#define SPA_VERSION_19 19ULL 395#define SPA_VERSION_20 20ULL 396#define SPA_VERSION_21 21ULL 397#define SPA_VERSION_22 22ULL 398#define SPA_VERSION_23 23ULL 399#define SPA_VERSION_24 24ULL 400#define SPA_VERSION_25 25ULL 401#define SPA_VERSION_26 26ULL 402#define SPA_VERSION_27 27ULL 403#define SPA_VERSION_28 28ULL 404#define SPA_VERSION_5000 5000ULL 405 406/* 407 * When bumping up SPA_VERSION, make sure GRUB ZFS understands the on-disk 408 * format change. Go to usr/src/grub/grub-0.97/stage2/{zfs-include/, fsys_zfs*}, 409 * and do the appropriate changes. Also bump the version number in 410 * usr/src/grub/capability. 411 */ 412#define SPA_VERSION SPA_VERSION_5000 413#define SPA_VERSION_STRING "5000" 414 415/* 416 * Symbolic names for the changes that caused a SPA_VERSION switch. 417 * Used in the code when checking for presence or absence of a feature. 418 * Feel free to define multiple symbolic names for each version if there 419 * were multiple changes to on-disk structures during that version. 420 * 421 * NOTE: When checking the current SPA_VERSION in your code, be sure 422 * to use spa_version() since it reports the version of the 423 * last synced uberblock. Checking the in-flight version can 424 * be dangerous in some cases. 425 */ 426#define SPA_VERSION_INITIAL SPA_VERSION_1 427#define SPA_VERSION_DITTO_BLOCKS SPA_VERSION_2 428#define SPA_VERSION_SPARES SPA_VERSION_3 429#define SPA_VERSION_RAIDZ2 SPA_VERSION_3 430#define SPA_VERSION_BPOBJ_ACCOUNT SPA_VERSION_3 431#define SPA_VERSION_RAIDZ_DEFLATE SPA_VERSION_3 432#define SPA_VERSION_DNODE_BYTES SPA_VERSION_3 433#define SPA_VERSION_ZPOOL_HISTORY SPA_VERSION_4 434#define SPA_VERSION_GZIP_COMPRESSION SPA_VERSION_5 435#define SPA_VERSION_BOOTFS SPA_VERSION_6 436#define SPA_VERSION_SLOGS SPA_VERSION_7 437#define SPA_VERSION_DELEGATED_PERMS SPA_VERSION_8 438#define SPA_VERSION_FUID SPA_VERSION_9 439#define SPA_VERSION_REFRESERVATION SPA_VERSION_9 440#define SPA_VERSION_REFQUOTA SPA_VERSION_9 441#define SPA_VERSION_UNIQUE_ACCURATE SPA_VERSION_9 442#define SPA_VERSION_L2CACHE SPA_VERSION_10 443#define SPA_VERSION_NEXT_CLONES SPA_VERSION_11 444#define SPA_VERSION_ORIGIN SPA_VERSION_11 445#define SPA_VERSION_DSL_SCRUB SPA_VERSION_11 446#define SPA_VERSION_SNAP_PROPS SPA_VERSION_12 447#define SPA_VERSION_USED_BREAKDOWN SPA_VERSION_13 448#define SPA_VERSION_PASSTHROUGH_X SPA_VERSION_14 449#define SPA_VERSION_USERSPACE SPA_VERSION_15 450#define SPA_VERSION_STMF_PROP SPA_VERSION_16 451#define SPA_VERSION_RAIDZ3 SPA_VERSION_17 452#define SPA_VERSION_USERREFS SPA_VERSION_18 453#define SPA_VERSION_HOLES SPA_VERSION_19 454#define SPA_VERSION_ZLE_COMPRESSION SPA_VERSION_20 455#define SPA_VERSION_DEDUP SPA_VERSION_21 456#define SPA_VERSION_RECVD_PROPS SPA_VERSION_22 457#define SPA_VERSION_SLIM_ZIL SPA_VERSION_23 458#define SPA_VERSION_SA SPA_VERSION_24 459#define SPA_VERSION_SCAN SPA_VERSION_25 460#define SPA_VERSION_DIR_CLONES SPA_VERSION_26 461#define SPA_VERSION_DEADLISTS SPA_VERSION_26 462#define SPA_VERSION_FAST_SNAP SPA_VERSION_27 463#define SPA_VERSION_MULTI_REPLACE SPA_VERSION_28 464#define SPA_VERSION_BEFORE_FEATURES SPA_VERSION_28 465#define SPA_VERSION_FEATURES SPA_VERSION_5000 466 467#define SPA_VERSION_IS_SUPPORTED(v) \ 468 (((v) >= SPA_VERSION_INITIAL && (v) <= SPA_VERSION_BEFORE_FEATURES) || \ 469 ((v) >= SPA_VERSION_FEATURES && (v) <= SPA_VERSION)) 470 471/* 472 * ZPL version - rev'd whenever an incompatible on-disk format change 473 * occurs. This is independent of SPA/DMU/ZAP versioning. You must 474 * also update the version_table[] and help message in zfs_prop.c. 475 * 476 * When changing, be sure to teach GRUB how to read the new format! 477 * See usr/src/grub/grub-0.97/stage2/{zfs-include/,fsys_zfs*} 478 */ 479#define ZPL_VERSION_1 1ULL 480#define ZPL_VERSION_2 2ULL 481#define ZPL_VERSION_3 3ULL 482#define ZPL_VERSION_4 4ULL 483#define ZPL_VERSION_5 5ULL 484#define ZPL_VERSION ZPL_VERSION_5 485#define ZPL_VERSION_STRING "5" 486 487#define ZPL_VERSION_INITIAL ZPL_VERSION_1 488#define ZPL_VERSION_DIRENT_TYPE ZPL_VERSION_2 489#define ZPL_VERSION_FUID ZPL_VERSION_3 490#define ZPL_VERSION_NORMALIZATION ZPL_VERSION_3 491#define ZPL_VERSION_SYSATTR ZPL_VERSION_3 492#define ZPL_VERSION_USERSPACE ZPL_VERSION_4 493#define ZPL_VERSION_SA ZPL_VERSION_5 494 495/* Rewind request information */ 496#define ZPOOL_NO_REWIND 1 /* No policy - default behavior */ 497#define ZPOOL_NEVER_REWIND 2 /* Do not search for best txg or rewind */ 498#define ZPOOL_TRY_REWIND 4 /* Search for best txg, but do not rewind */ 499#define ZPOOL_DO_REWIND 8 /* Rewind to best txg w/in deferred frees */ 500#define ZPOOL_EXTREME_REWIND 16 /* Allow extreme measures to find best txg */ 501#define ZPOOL_REWIND_MASK 28 /* All the possible rewind bits */ 502#define ZPOOL_REWIND_POLICIES 31 /* All the possible policy bits */ 503 504typedef struct zpool_rewind_policy { 505 uint32_t zrp_request; /* rewind behavior requested */ 506 uint64_t zrp_maxmeta; /* max acceptable meta-data errors */ 507 uint64_t zrp_maxdata; /* max acceptable data errors */ 508 uint64_t zrp_txg; /* specific txg to load */ 509} zpool_rewind_policy_t; 510 511/* 512 * The following are configuration names used in the nvlist describing a pool's 513 * configuration. 514 */ 515#define ZPOOL_CONFIG_VERSION "version" 516#define ZPOOL_CONFIG_POOL_NAME "name" 517#define ZPOOL_CONFIG_POOL_STATE "state" 518#define ZPOOL_CONFIG_POOL_TXG "txg" 519#define ZPOOL_CONFIG_POOL_GUID "pool_guid" 520#define ZPOOL_CONFIG_CREATE_TXG "create_txg" 521#define ZPOOL_CONFIG_TOP_GUID "top_guid" 522#define ZPOOL_CONFIG_VDEV_TREE "vdev_tree" 523#define ZPOOL_CONFIG_TYPE "type" 524#define ZPOOL_CONFIG_CHILDREN "children" 525#define ZPOOL_CONFIG_ID "id" 526#define ZPOOL_CONFIG_GUID "guid" 527#define ZPOOL_CONFIG_PATH "path" 528#define ZPOOL_CONFIG_DEVID "devid" 529#define ZPOOL_CONFIG_METASLAB_ARRAY "metaslab_array" 530#define ZPOOL_CONFIG_METASLAB_SHIFT "metaslab_shift" 531#define ZPOOL_CONFIG_ASHIFT "ashift" 532#define ZPOOL_CONFIG_ASIZE "asize" 533#define ZPOOL_CONFIG_DTL "DTL" 534#define ZPOOL_CONFIG_SCAN_STATS "scan_stats" /* not stored on disk */ 535#define ZPOOL_CONFIG_VDEV_STATS "vdev_stats" /* not stored on disk */ 536#define ZPOOL_CONFIG_WHOLE_DISK "whole_disk" 537#define ZPOOL_CONFIG_ERRCOUNT "error_count" 538#define ZPOOL_CONFIG_NOT_PRESENT "not_present" 539#define ZPOOL_CONFIG_SPARES "spares" 540#define ZPOOL_CONFIG_IS_SPARE "is_spare" 541#define ZPOOL_CONFIG_NPARITY "nparity" 542#define ZPOOL_CONFIG_HOSTID "hostid" 543#define ZPOOL_CONFIG_HOSTNAME "hostname" 544#define ZPOOL_CONFIG_LOADED_TIME "initial_load_time" 545#define ZPOOL_CONFIG_UNSPARE "unspare" 546#define ZPOOL_CONFIG_PHYS_PATH "phys_path" 547#define ZPOOL_CONFIG_IS_LOG "is_log" 548#define ZPOOL_CONFIG_L2CACHE "l2cache" 549#define ZPOOL_CONFIG_HOLE_ARRAY "hole_array" 550#define ZPOOL_CONFIG_VDEV_CHILDREN "vdev_children" 551#define ZPOOL_CONFIG_IS_HOLE "is_hole" 552#define ZPOOL_CONFIG_DDT_HISTOGRAM "ddt_histogram" 553#define ZPOOL_CONFIG_DDT_OBJ_STATS "ddt_object_stats" 554#define ZPOOL_CONFIG_DDT_STATS "ddt_stats" 555#define ZPOOL_CONFIG_SPLIT "splitcfg" 556#define ZPOOL_CONFIG_ORIG_GUID "orig_guid" 557#define ZPOOL_CONFIG_SPLIT_GUID "split_guid" 558#define ZPOOL_CONFIG_SPLIT_LIST "guid_list" 559#define ZPOOL_CONFIG_REMOVING "removing" 560#define ZPOOL_CONFIG_RESILVER_TXG "resilver_txg" 561#define ZPOOL_CONFIG_COMMENT "comment" 562#define ZPOOL_CONFIG_SUSPENDED "suspended" /* not stored on disk */ 563#define ZPOOL_CONFIG_TIMESTAMP "timestamp" /* not stored on disk */ 564#define ZPOOL_CONFIG_BOOTFS "bootfs" /* not stored on disk */ 565#define ZPOOL_CONFIG_MISSING_DEVICES "missing_vdevs" /* not stored on disk */ 566#define ZPOOL_CONFIG_LOAD_INFO "load_info" /* not stored on disk */ 567#define ZPOOL_CONFIG_REWIND_INFO "rewind_info" /* not stored on disk */ 568#define ZPOOL_CONFIG_UNSUP_FEAT "unsup_feat" /* not stored on disk */ 569#define ZPOOL_CONFIG_ENABLED_FEAT "enabled_feat" /* not stored on disk */ 570#define ZPOOL_CONFIG_CAN_RDONLY "can_rdonly" /* not stored on disk */ 571#define ZPOOL_CONFIG_FEATURES_FOR_READ "features_for_read" 572#define ZPOOL_CONFIG_FEATURE_STATS "feature_stats" /* not stored on disk */ 573#define ZPOOL_CONFIG_VDEV_TOP_ZAP "com.delphix:vdev_zap_top" 574#define ZPOOL_CONFIG_VDEV_LEAF_ZAP "com.delphix:vdev_zap_leaf" 575#define ZPOOL_CONFIG_HAS_PER_VDEV_ZAPS "com.delphix:has_per_vdev_zaps" 576/* 577 * The persistent vdev state is stored as separate values rather than a single 578 * 'vdev_state' entry. This is because a device can be in multiple states, such 579 * as offline and degraded. 580 */ 581#define ZPOOL_CONFIG_OFFLINE "offline" 582#define ZPOOL_CONFIG_FAULTED "faulted" 583#define ZPOOL_CONFIG_DEGRADED "degraded" 584#define ZPOOL_CONFIG_REMOVED "removed" 585#define ZPOOL_CONFIG_FRU "fru" 586#define ZPOOL_CONFIG_AUX_STATE "aux_state" 587 588/* Rewind policy parameters */ 589#define ZPOOL_REWIND_POLICY "rewind-policy" 590#define ZPOOL_REWIND_REQUEST "rewind-request" 591#define ZPOOL_REWIND_REQUEST_TXG "rewind-request-txg" 592#define ZPOOL_REWIND_META_THRESH "rewind-meta-thresh" 593#define ZPOOL_REWIND_DATA_THRESH "rewind-data-thresh" 594 595/* Rewind data discovered */ 596#define ZPOOL_CONFIG_LOAD_TIME "rewind_txg_ts" 597#define ZPOOL_CONFIG_LOAD_DATA_ERRORS "verify_data_errors" 598#define ZPOOL_CONFIG_REWIND_TIME "seconds_of_rewind" 599 600#define VDEV_TYPE_ROOT "root" 601#define VDEV_TYPE_MIRROR "mirror" 602#define VDEV_TYPE_REPLACING "replacing" 603#define VDEV_TYPE_RAIDZ "raidz" 604#define VDEV_TYPE_DISK "disk" 605#define VDEV_TYPE_FILE "file" 606#define VDEV_TYPE_MISSING "missing" 607#define VDEV_TYPE_HOLE "hole" 608#define VDEV_TYPE_SPARE "spare" 609#define VDEV_TYPE_LOG "log" 610#define VDEV_TYPE_L2CACHE "l2cache" 611 612/* 613 * This is needed in userland to report the minimum necessary device size. 614 * 615 * Note that the zfs test suite uses 64MB vdevs. 616 */ 617#define SPA_MINDEVSIZE (64ULL << 20) 618 619/* 620 * Set if the fragmentation has not yet been calculated. This can happen 621 * because the space maps have not been upgraded or the histogram feature 622 * is not enabled. 623 */ 624#define ZFS_FRAG_INVALID UINT64_MAX 625 626/* 627 * The location of the pool configuration repository, shared between kernel and 628 * userland. 629 */ 630#define ZPOOL_CACHE "/boot/zfs/zpool.cache" 631 632/* 633 * vdev states are ordered from least to most healthy. 634 * A vdev that's CANT_OPEN or below is considered unusable. 635 */ 636typedef enum vdev_state { 637 VDEV_STATE_UNKNOWN = 0, /* Uninitialized vdev */ 638 VDEV_STATE_CLOSED, /* Not currently open */ 639 VDEV_STATE_OFFLINE, /* Not allowed to open */ 640 VDEV_STATE_REMOVED, /* Explicitly removed from system */ 641 VDEV_STATE_CANT_OPEN, /* Tried to open, but failed */ 642 VDEV_STATE_FAULTED, /* External request to fault device */ 643 VDEV_STATE_DEGRADED, /* Replicated vdev with unhealthy kids */ 644 VDEV_STATE_HEALTHY /* Presumed good */ 645} vdev_state_t; 646 647#define VDEV_STATE_ONLINE VDEV_STATE_HEALTHY 648 649/* 650 * vdev aux states. When a vdev is in the CANT_OPEN state, the aux field 651 * of the vdev stats structure uses these constants to distinguish why. 652 */ 653typedef enum vdev_aux { 654 VDEV_AUX_NONE, /* no error */ 655 VDEV_AUX_OPEN_FAILED, /* ldi_open_*() or vn_open() failed */ 656 VDEV_AUX_CORRUPT_DATA, /* bad label or disk contents */ 657 VDEV_AUX_NO_REPLICAS, /* insufficient number of replicas */ 658 VDEV_AUX_BAD_GUID_SUM, /* vdev guid sum doesn't match */ 659 VDEV_AUX_TOO_SMALL, /* vdev size is too small */ 660 VDEV_AUX_BAD_LABEL, /* the label is OK but invalid */ 661 VDEV_AUX_VERSION_NEWER, /* on-disk version is too new */ 662 VDEV_AUX_VERSION_OLDER, /* on-disk version is too old */ 663 VDEV_AUX_UNSUP_FEAT, /* unsupported features */ 664 VDEV_AUX_SPARED, /* hot spare used in another pool */ 665 VDEV_AUX_ERR_EXCEEDED, /* too many errors */ 666 VDEV_AUX_IO_FAILURE, /* experienced I/O failure */ 667 VDEV_AUX_BAD_LOG, /* cannot read log chain(s) */ 668 VDEV_AUX_EXTERNAL, /* external diagnosis */ 669 VDEV_AUX_SPLIT_POOL, /* vdev was split off into another pool */ 670 VDEV_AUX_ASHIFT_TOO_BIG /* vdev's min block size is too large */ 671} vdev_aux_t; 672 673/* 674 * pool state. The following states are written to disk as part of the normal 675 * SPA lifecycle: ACTIVE, EXPORTED, DESTROYED, SPARE, L2CACHE. The remaining 676 * states are software abstractions used at various levels to communicate 677 * pool state. 678 */ 679typedef enum pool_state { 680 POOL_STATE_ACTIVE = 0, /* In active use */ 681 POOL_STATE_EXPORTED, /* Explicitly exported */ 682 POOL_STATE_DESTROYED, /* Explicitly destroyed */ 683 POOL_STATE_SPARE, /* Reserved for hot spare use */ 684 POOL_STATE_L2CACHE, /* Level 2 ARC device */ 685 POOL_STATE_UNINITIALIZED, /* Internal spa_t state */ 686 POOL_STATE_UNAVAIL, /* Internal libzfs state */ 687 POOL_STATE_POTENTIALLY_ACTIVE /* Internal libzfs state */ 688} pool_state_t; 689 690/* 691 * Scan Functions. 692 */ 693typedef enum pool_scan_func { 694 POOL_SCAN_NONE, 695 POOL_SCAN_SCRUB, 696 POOL_SCAN_RESILVER, 697 POOL_SCAN_FUNCS 698} pool_scan_func_t; 699 700/* 701 * Used to control scrub pause and resume. 702 */ 703typedef enum pool_scrub_cmd { 704 POOL_SCRUB_NORMAL = 0, 705 POOL_SCRUB_PAUSE, 706 POOL_SCRUB_FLAGS_END 707} pool_scrub_cmd_t; 708 709 710/* 711 * ZIO types. Needed to interpret vdev statistics below. 712 */ 713typedef enum zio_type { 714 ZIO_TYPE_NULL = 0, 715 ZIO_TYPE_READ, 716 ZIO_TYPE_WRITE, 717 ZIO_TYPE_FREE, 718 ZIO_TYPE_CLAIM, 719 ZIO_TYPE_IOCTL, 720 ZIO_TYPES 721} zio_type_t; 722 723/* 724 * Pool statistics. Note: all fields should be 64-bit because this 725 * is passed between kernel and userland as an nvlist uint64 array. 726 */ 727typedef struct pool_scan_stat { 728 /* values stored on disk */ 729 uint64_t pss_func; /* pool_scan_func_t */ 730 uint64_t pss_state; /* dsl_scan_state_t */ 731 uint64_t pss_start_time; /* scan start time */ 732 uint64_t pss_end_time; /* scan end time */ 733 uint64_t pss_to_examine; /* total bytes to scan */ 734 uint64_t pss_examined; /* total examined bytes */ 735 uint64_t pss_to_process; /* total bytes to process */ 736 uint64_t pss_processed; /* total processed bytes */ 737 uint64_t pss_errors; /* scan errors */ 738 739 /* values not stored on disk */ 740 uint64_t pss_pass_exam; /* examined bytes per scan pass */ 741 uint64_t pss_pass_start; /* start time of a scan pass */ 742 uint64_t pss_pass_scrub_pause; /* pause time of a scurb pass */ 743 /* cumulative time scrub spent paused, needed for rate calculation */ 744 uint64_t pss_pass_scrub_spent_paused; 745} pool_scan_stat_t; 746 747typedef enum dsl_scan_state { 748 DSS_NONE, 749 DSS_SCANNING, 750 DSS_FINISHED, 751 DSS_CANCELED, 752 DSS_NUM_STATES 753} dsl_scan_state_t; 754 755 756/* 757 * Vdev statistics. Note: all fields should be 64-bit because this 758 * is passed between kernel and userland as an nvlist uint64 array. 759 */ 760typedef struct vdev_stat { 761 hrtime_t vs_timestamp; /* time since vdev load */ 762 uint64_t vs_state; /* vdev state */ 763 uint64_t vs_aux; /* see vdev_aux_t */ 764 uint64_t vs_alloc; /* space allocated */ 765 uint64_t vs_space; /* total capacity */ 766 uint64_t vs_dspace; /* deflated capacity */ 767 uint64_t vs_rsize; /* replaceable dev size */ 768 uint64_t vs_esize; /* expandable dev size */ 769 uint64_t vs_ops[ZIO_TYPES]; /* operation count */ 770 uint64_t vs_bytes[ZIO_TYPES]; /* bytes read/written */ 771 uint64_t vs_read_errors; /* read errors */ 772 uint64_t vs_write_errors; /* write errors */ 773 uint64_t vs_checksum_errors; /* checksum errors */ 774 uint64_t vs_self_healed; /* self-healed bytes */ 775 uint64_t vs_scan_removing; /* removing? */ 776 uint64_t vs_scan_processed; /* scan processed bytes */ 777 uint64_t vs_configured_ashift; /* TLV vdev_ashift */ 778 uint64_t vs_logical_ashift; /* vdev_logical_ashift */ 779 uint64_t vs_physical_ashift; /* vdev_physical_ashift */ 780 uint64_t vs_fragmentation; /* device fragmentation */ 781} vdev_stat_t; 782#define VDEV_STAT_VALID(field, uint64_t_field_count) \ 783 ((uint64_t_field_count * sizeof(uint64_t)) >= \ 784 (offsetof(vdev_stat_t, field) + sizeof(((vdev_stat_t *)NULL)->field))) 785 786/* 787 * DDT statistics. Note: all fields should be 64-bit because this 788 * is passed between kernel and userland as an nvlist uint64 array. 789 */ 790typedef struct ddt_object { 791 uint64_t ddo_count; /* number of elments in ddt */ 792 uint64_t ddo_dspace; /* size of ddt on disk */ 793 uint64_t ddo_mspace; /* size of ddt in-core */ 794} ddt_object_t; 795 796typedef struct ddt_stat { 797 uint64_t dds_blocks; /* blocks */ 798 uint64_t dds_lsize; /* logical size */ 799 uint64_t dds_psize; /* physical size */ 800 uint64_t dds_dsize; /* deflated allocated size */ 801 uint64_t dds_ref_blocks; /* referenced blocks */ 802 uint64_t dds_ref_lsize; /* referenced lsize * refcnt */ 803 uint64_t dds_ref_psize; /* referenced psize * refcnt */ 804 uint64_t dds_ref_dsize; /* referenced dsize * refcnt */ 805} ddt_stat_t; 806 807typedef struct ddt_histogram { 808 ddt_stat_t ddh_stat[64]; /* power-of-two histogram buckets */ 809} ddt_histogram_t; 810 811#define ZVOL_DRIVER "zvol" 812#define ZFS_DRIVER "zfs" 813#define ZFS_DEV_NAME "zfs" 814#define ZFS_DEV "/dev/" ZFS_DEV_NAME 815#define ZFS_DISK_ROOT "/dev/dsk" 816#define ZFS_DISK_ROOTD ZFS_DISK_ROOT "/" 817#define ZFS_RDISK_ROOT "/dev/rdsk" 818#define ZFS_RDISK_ROOTD ZFS_RDISK_ROOT "/" 819 820/* general zvol path */ 821#define ZVOL_DIR "/dev/zvol" 822/* expansion */ 823#define ZVOL_PSEUDO_DEV "/devices/pseudo/zfs@0:" 824/* for dump and swap */ 825#define ZVOL_FULL_DEV_DIR ZVOL_DIR "/dsk/" 826#define ZVOL_FULL_RDEV_DIR ZVOL_DIR "/rdsk/" 827 828#define ZVOL_PROP_NAME "name" 829#define ZVOL_DEFAULT_BLOCKSIZE 8192 830 831/* 832 * /dev/zfs ioctl numbers. 833 */ 834typedef enum zfs_ioc { 835 ZFS_IOC_FIRST = 0, 836 ZFS_IOC_POOL_CREATE = ZFS_IOC_FIRST, 837 ZFS_IOC_POOL_DESTROY, 838 ZFS_IOC_POOL_IMPORT, 839 ZFS_IOC_POOL_EXPORT, 840 ZFS_IOC_POOL_CONFIGS, 841 ZFS_IOC_POOL_STATS, 842 ZFS_IOC_POOL_TRYIMPORT, 843 ZFS_IOC_POOL_SCAN, 844 ZFS_IOC_POOL_FREEZE, 845 ZFS_IOC_POOL_UPGRADE, 846 ZFS_IOC_POOL_GET_HISTORY, 847 ZFS_IOC_VDEV_ADD, 848 ZFS_IOC_VDEV_REMOVE, 849 ZFS_IOC_VDEV_SET_STATE, 850 ZFS_IOC_VDEV_ATTACH, 851 ZFS_IOC_VDEV_DETACH, 852 ZFS_IOC_VDEV_SETPATH, 853 ZFS_IOC_VDEV_SETFRU, 854 ZFS_IOC_OBJSET_STATS, 855 ZFS_IOC_OBJSET_ZPLPROPS, 856 ZFS_IOC_DATASET_LIST_NEXT, 857 ZFS_IOC_SNAPSHOT_LIST_NEXT, 858 ZFS_IOC_SET_PROP, 859 ZFS_IOC_CREATE, 860 ZFS_IOC_DESTROY, 861 ZFS_IOC_ROLLBACK, 862 ZFS_IOC_RENAME, 863 ZFS_IOC_RECV, 864 ZFS_IOC_SEND, 865 ZFS_IOC_INJECT_FAULT, 866 ZFS_IOC_CLEAR_FAULT, 867 ZFS_IOC_INJECT_LIST_NEXT, 868 ZFS_IOC_ERROR_LOG, 869 ZFS_IOC_CLEAR, 870 ZFS_IOC_PROMOTE, 871 ZFS_IOC_DESTROY_SNAPS, 872 ZFS_IOC_SNAPSHOT, 873 ZFS_IOC_DSOBJ_TO_DSNAME, 874 ZFS_IOC_OBJ_TO_PATH, 875 ZFS_IOC_POOL_SET_PROPS, 876 ZFS_IOC_POOL_GET_PROPS, 877 ZFS_IOC_SET_FSACL, 878 ZFS_IOC_GET_FSACL, 879 ZFS_IOC_SHARE, 880 ZFS_IOC_INHERIT_PROP, 881 ZFS_IOC_SMB_ACL, 882 ZFS_IOC_USERSPACE_ONE, 883 ZFS_IOC_USERSPACE_MANY, 884 ZFS_IOC_USERSPACE_UPGRADE, 885 ZFS_IOC_HOLD, 886 ZFS_IOC_RELEASE, 887 ZFS_IOC_GET_HOLDS, 888 ZFS_IOC_OBJSET_RECVD_PROPS, 889 ZFS_IOC_VDEV_SPLIT, 890 ZFS_IOC_NEXT_OBJ, 891 ZFS_IOC_DIFF, 892 ZFS_IOC_TMP_SNAPSHOT, 893 ZFS_IOC_OBJ_TO_STATS, 894 ZFS_IOC_JAIL, 895 ZFS_IOC_UNJAIL, 896 ZFS_IOC_POOL_REGUID, 897 ZFS_IOC_SPACE_WRITTEN, 898 ZFS_IOC_SPACE_SNAPS, 899 ZFS_IOC_SEND_PROGRESS, 900 ZFS_IOC_POOL_REOPEN, 901 ZFS_IOC_LOG_HISTORY, 902 ZFS_IOC_SEND_NEW, 903 ZFS_IOC_SEND_SPACE, 904 ZFS_IOC_CLONE, 905 ZFS_IOC_BOOKMARK, 906 ZFS_IOC_GET_BOOKMARKS, 907 ZFS_IOC_DESTROY_BOOKMARKS, 908 ZFS_IOC_NEXTBOOT, 909 ZFS_IOC_LAST 910} zfs_ioc_t; 911 912/* 913 * Internal SPA load state. Used by FMA diagnosis engine. 914 */ 915typedef enum { 916 SPA_LOAD_NONE, /* no load in progress */ 917 SPA_LOAD_OPEN, /* normal open */ 918 SPA_LOAD_IMPORT, /* import in progress */ 919 SPA_LOAD_TRYIMPORT, /* tryimport in progress */ 920 SPA_LOAD_RECOVER, /* recovery requested */ 921 SPA_LOAD_ERROR, /* load failed */ 922 SPA_LOAD_CREATE /* creation in progress */ 923} spa_load_state_t; 924 925/* 926 * Bookmark name values. 927 */ 928#define ZPOOL_ERR_LIST "error list" 929#define ZPOOL_ERR_DATASET "dataset" 930#define ZPOOL_ERR_OBJECT "object" 931 932#define HIS_MAX_RECORD_LEN (MAXPATHLEN + MAXPATHLEN + 1) 933 934/* 935 * The following are names used in the nvlist describing 936 * the pool's history log. 937 */ 938#define ZPOOL_HIST_RECORD "history record" 939#define ZPOOL_HIST_TIME "history time" 940#define ZPOOL_HIST_CMD "history command" 941#define ZPOOL_HIST_WHO "history who" 942#define ZPOOL_HIST_ZONE "history zone" 943#define ZPOOL_HIST_HOST "history hostname" 944#define ZPOOL_HIST_TXG "history txg" 945#define ZPOOL_HIST_INT_EVENT "history internal event" 946#define ZPOOL_HIST_INT_STR "history internal str" 947#define ZPOOL_HIST_INT_NAME "internal_name" 948#define ZPOOL_HIST_IOCTL "ioctl" 949#define ZPOOL_HIST_INPUT_NVL "in_nvl" 950#define ZPOOL_HIST_OUTPUT_NVL "out_nvl" 951#define ZPOOL_HIST_DSNAME "dsname" 952#define ZPOOL_HIST_DSID "dsid" 953 954/* 955 * Flags for ZFS_IOC_VDEV_SET_STATE 956 */ 957#define ZFS_ONLINE_CHECKREMOVE 0x1 958#define ZFS_ONLINE_UNSPARE 0x2 959#define ZFS_ONLINE_FORCEFAULT 0x4 960#define ZFS_ONLINE_EXPAND 0x8 961#define ZFS_OFFLINE_TEMPORARY 0x1 962 963/* 964 * Flags for ZFS_IOC_POOL_IMPORT 965 */ 966#define ZFS_IMPORT_NORMAL 0x0 967#define ZFS_IMPORT_VERBATIM 0x1 968#define ZFS_IMPORT_ANY_HOST 0x2 969#define ZFS_IMPORT_MISSING_LOG 0x4 970#define ZFS_IMPORT_ONLY 0x8 971 972/* 973 * Sysevent payload members. ZFS will generate the following sysevents with the 974 * given payloads: 975 * 976 * ESC_ZFS_RESILVER_START 977 * ESC_ZFS_RESILVER_END 978 * ESC_ZFS_POOL_DESTROY 979 * ESC_ZFS_POOL_REGUID 980 * 981 * ZFS_EV_POOL_NAME DATA_TYPE_STRING 982 * ZFS_EV_POOL_GUID DATA_TYPE_UINT64 983 * 984 * ESC_ZFS_VDEV_REMOVE 985 * ESC_ZFS_VDEV_CLEAR 986 * ESC_ZFS_VDEV_CHECK 987 * 988 * ZFS_EV_POOL_NAME DATA_TYPE_STRING 989 * ZFS_EV_POOL_GUID DATA_TYPE_UINT64 990 * ZFS_EV_VDEV_PATH DATA_TYPE_STRING (optional) 991 * ZFS_EV_VDEV_GUID DATA_TYPE_UINT64 992 */ 993#define ZFS_EV_POOL_NAME "pool_name" 994#define ZFS_EV_POOL_GUID "pool_guid" 995#define ZFS_EV_VDEV_PATH "vdev_path" 996#define ZFS_EV_VDEV_GUID "vdev_guid" 997 998#ifdef __cplusplus 999} 1000#endif 1001 1002#endif /* _SYS_FS_ZFS_H */ 1003