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 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright (c) 2011 by Delphix. All rights reserved.
24 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
25 */
26
27 #ifndef _SYS_SPA_H
28 #define _SYS_SPA_H
29
30 #include <sys/avl.h>
31 #include <sys/zfs_context.h>
32 #include <sys/nvpair.h>
33 #include <sys/sysmacros.h>
34 #include <sys/types.h>
35 #include <sys/fs/zfs.h>
36
37 #ifdef __cplusplus
38 extern "C" {
39 #endif
40
41 /*
42 * Forward references that lots of things need.
43 */
77 #define BF32_SET_SB(x, low, len, shift, bias, val) \
78 BF32_SET(x, low, len, ((val) >> (shift)) - (bias))
79 #define BF64_SET_SB(x, low, len, shift, bias, val) \
80 BF64_SET(x, low, len, ((val) >> (shift)) - (bias))
81
82 /*
83 * We currently support nine block sizes, from 512 bytes to 128K.
84 * We could go higher, but the benefits are near-zero and the cost
85 * of COWing a giant block to modify one byte would become excessive.
86 */
87 #define SPA_MINBLOCKSHIFT 9
88 #define SPA_MAXBLOCKSHIFT 17
89 #define SPA_MINBLOCKSIZE (1ULL << SPA_MINBLOCKSHIFT)
90 #define SPA_MAXBLOCKSIZE (1ULL << SPA_MAXBLOCKSHIFT)
91
92 #define SPA_BLOCKSIZES (SPA_MAXBLOCKSHIFT - SPA_MINBLOCKSHIFT + 1)
93
94 /*
95 * Size of block to hold the configuration data (a packed nvlist)
96 */
97 #define SPA_CONFIG_BLOCKSIZE (1 << 14)
98
99 /*
100 * The DVA size encodings for LSIZE and PSIZE support blocks up to 32MB.
101 * The ASIZE encoding should be at least 64 times larger (6 more bits)
102 * to support up to 4-way RAID-Z mirror mode with worst-case gang block
103 * overhead, three DVAs per bp, plus one more bit in case we do anything
104 * else that expands the ASIZE.
105 */
106 #define SPA_LSIZEBITS 16 /* LSIZE up to 32M (2^16 * 512) */
107 #define SPA_PSIZEBITS 16 /* PSIZE up to 32M (2^16 * 512) */
108 #define SPA_ASIZEBITS 24 /* ASIZE up to 64 times larger */
109
110 /*
111 * All SPA data is represented by 128-bit data virtual addresses (DVAs).
112 * The members of the dva_t should be considered opaque outside the SPA.
113 */
114 typedef struct dva {
115 uint64_t dva_word[2];
116 } dva_t;
117
245 #define BP_GET_DEDUP(bp) BF64_GET((bp)->blk_prop, 62, 1)
246 #define BP_SET_DEDUP(bp, x) BF64_SET((bp)->blk_prop, 62, 1, x)
247
248 #define BP_GET_BYTEORDER(bp) (0 - BF64_GET((bp)->blk_prop, 63, 1))
249 #define BP_SET_BYTEORDER(bp, x) BF64_SET((bp)->blk_prop, 63, 1, x)
250
251 #define BP_PHYSICAL_BIRTH(bp) \
252 ((bp)->blk_phys_birth ? (bp)->blk_phys_birth : (bp)->blk_birth)
253
254 #define BP_SET_BIRTH(bp, logical, physical) \
255 { \
256 (bp)->blk_birth = (logical); \
257 (bp)->blk_phys_birth = ((logical) == (physical) ? 0 : (physical)); \
258 }
259
260 #define BP_GET_ASIZE(bp) \
261 (DVA_GET_ASIZE(&(bp)->blk_dva[0]) + DVA_GET_ASIZE(&(bp)->blk_dva[1]) + \
262 DVA_GET_ASIZE(&(bp)->blk_dva[2]))
263
264 #define BP_GET_UCSIZE(bp) \
265 ((BP_GET_LEVEL(bp) > 0 || dmu_ot[BP_GET_TYPE(bp)].ot_metadata) ? \
266 BP_GET_PSIZE(bp) : BP_GET_LSIZE(bp))
267
268 #define BP_GET_NDVAS(bp) \
269 (!!DVA_GET_ASIZE(&(bp)->blk_dva[0]) + \
270 !!DVA_GET_ASIZE(&(bp)->blk_dva[1]) + \
271 !!DVA_GET_ASIZE(&(bp)->blk_dva[2]))
272
273 #define BP_COUNT_GANG(bp) \
274 (DVA_GET_GANG(&(bp)->blk_dva[0]) + \
275 DVA_GET_GANG(&(bp)->blk_dva[1]) + \
276 DVA_GET_GANG(&(bp)->blk_dva[2]))
277
278 #define DVA_EQUAL(dva1, dva2) \
279 ((dva1)->dva_word[1] == (dva2)->dva_word[1] && \
280 (dva1)->dva_word[0] == (dva2)->dva_word[0])
281
282 #define BP_EQUAL(bp1, bp2) \
283 (BP_PHYSICAL_BIRTH(bp1) == BP_PHYSICAL_BIRTH(bp2) && \
284 DVA_EQUAL(&(bp1)->blk_dva[0], &(bp2)->blk_dva[0]) && \
285 DVA_EQUAL(&(bp1)->blk_dva[1], &(bp2)->blk_dva[1]) && \
386 BP_GET_DEDUP(bp) ? "dedup" : "unique", \
387 copyname[copies], \
388 ws, \
389 (u_longlong_t)BP_GET_LSIZE(bp), \
390 (u_longlong_t)BP_GET_PSIZE(bp), \
391 (u_longlong_t)bp->blk_birth, \
392 (u_longlong_t)BP_PHYSICAL_BIRTH(bp), \
393 (u_longlong_t)bp->blk_fill, \
394 ws, \
395 (u_longlong_t)bp->blk_cksum.zc_word[0], \
396 (u_longlong_t)bp->blk_cksum.zc_word[1], \
397 (u_longlong_t)bp->blk_cksum.zc_word[2], \
398 (u_longlong_t)bp->blk_cksum.zc_word[3]); \
399 } \
400 ASSERT(len < size); \
401 }
402
403 #include <sys/dmu.h>
404
405 #define BP_GET_BUFC_TYPE(bp) \
406 (((BP_GET_LEVEL(bp) > 0) || (dmu_ot[BP_GET_TYPE(bp)].ot_metadata)) ? \
407 ARC_BUFC_METADATA : ARC_BUFC_DATA);
408
409 typedef enum spa_import_type {
410 SPA_IMPORT_EXISTING,
411 SPA_IMPORT_ASSEMBLE
412 } spa_import_type_t;
413
414 /* state manipulation functions */
415 extern int spa_open(const char *pool, spa_t **, void *tag);
416 extern int spa_open_rewind(const char *pool, spa_t **, void *tag,
417 nvlist_t *policy, nvlist_t **config);
418 extern int spa_get_stats(const char *pool, nvlist_t **config,
419 char *altroot, size_t buflen);
420 extern int spa_create(const char *pool, nvlist_t *config, nvlist_t *props,
421 const char *history_str, nvlist_t *zplprops);
422 extern int spa_import_rootpool(char *devpath, char *devid);
423 extern int spa_import(const char *pool, nvlist_t *config, nvlist_t *props,
424 uint64_t flags);
425 extern nvlist_t *spa_tryimport(nvlist_t *tryconfig);
426 extern int spa_destroy(char *pool);
427 extern int spa_export(char *pool, nvlist_t **oldconfig, boolean_t force,
428 boolean_t hardforce);
429 extern int spa_reset(char *pool);
430 extern void spa_async_request(spa_t *spa, int flag);
431 extern void spa_async_unrequest(spa_t *spa, int flag);
432 extern void spa_async_suspend(spa_t *spa);
433 extern void spa_async_resume(spa_t *spa);
434 extern spa_t *spa_inject_addref(char *pool);
435 extern void spa_inject_delref(spa_t *spa);
436 extern void spa_scan_stat_init(spa_t *spa);
437 extern int spa_scan_get_stats(spa_t *spa, pool_scan_stat_t *ps);
438
439 #define SPA_ASYNC_CONFIG_UPDATE 0x01
556 extern int spa_vdev_state_exit(spa_t *spa, vdev_t *vd, int error);
557
558 /* Log state */
559 typedef enum spa_log_state {
560 SPA_LOG_UNKNOWN = 0, /* unknown log state */
561 SPA_LOG_MISSING, /* missing log(s) */
562 SPA_LOG_CLEAR, /* clear the log(s) */
563 SPA_LOG_GOOD, /* log(s) are good */
564 } spa_log_state_t;
565
566 extern spa_log_state_t spa_get_log_state(spa_t *spa);
567 extern void spa_set_log_state(spa_t *spa, spa_log_state_t state);
568 extern int spa_offline_log(spa_t *spa);
569
570 /* Log claim callback */
571 extern void spa_claim_notify(zio_t *zio);
572
573 /* Accessor functions */
574 extern boolean_t spa_shutting_down(spa_t *spa);
575 extern struct dsl_pool *spa_get_dsl(spa_t *spa);
576 extern blkptr_t *spa_get_rootblkptr(spa_t *spa);
577 extern void spa_set_rootblkptr(spa_t *spa, const blkptr_t *bp);
578 extern void spa_altroot(spa_t *, char *, size_t);
579 extern int spa_sync_pass(spa_t *spa);
580 extern char *spa_name(spa_t *spa);
581 extern uint64_t spa_guid(spa_t *spa);
582 extern uint64_t spa_load_guid(spa_t *spa);
583 extern uint64_t spa_last_synced_txg(spa_t *spa);
584 extern uint64_t spa_first_txg(spa_t *spa);
585 extern uint64_t spa_syncing_txg(spa_t *spa);
586 extern uint64_t spa_version(spa_t *spa);
587 extern pool_state_t spa_state(spa_t *spa);
588 extern spa_load_state_t spa_load_state(spa_t *spa);
589 extern uint64_t spa_freeze_txg(spa_t *spa);
590 extern uint64_t spa_get_asize(spa_t *spa, uint64_t lsize);
591 extern uint64_t spa_get_dspace(spa_t *spa);
592 extern void spa_update_dspace(spa_t *spa);
593 extern uint64_t spa_version(spa_t *spa);
594 extern boolean_t spa_deflate(spa_t *spa);
595 extern metaslab_class_t *spa_normal_class(spa_t *spa);
596 extern metaslab_class_t *spa_log_class(spa_t *spa);
597 extern int spa_max_replication(spa_t *spa);
598 extern int spa_prev_software_version(spa_t *spa);
599 extern int spa_busy(void);
600 extern uint8_t spa_get_failmode(spa_t *spa);
601 extern boolean_t spa_suspended(spa_t *spa);
602 extern uint64_t spa_bootfs(spa_t *spa);
603 extern uint64_t spa_delegation(spa_t *spa);
604 extern objset_t *spa_meta_objset(spa_t *spa);
605
606 /* Miscellaneous support routines */
607 extern int spa_rename(const char *oldname, const char *newname);
608 extern spa_t *spa_by_guid(uint64_t pool_guid, uint64_t device_guid);
609 extern boolean_t spa_guid_exists(uint64_t pool_guid, uint64_t device_guid);
610 extern char *spa_strdup(const char *);
611 extern void spa_strfree(char *);
612 extern uint64_t spa_get_random(uint64_t range);
613 extern uint64_t spa_generate_guid(spa_t *spa);
614 extern void sprintf_blkptr(char *buf, const blkptr_t *bp);
615 extern void spa_freeze(spa_t *spa);
616 extern int spa_change_guid(spa_t *spa);
617 extern void spa_upgrade(spa_t *spa, uint64_t version);
618 extern void spa_evict_all(void);
619 extern vdev_t *spa_lookup_by_guid(spa_t *spa, uint64_t guid,
620 boolean_t l2cache);
621 extern boolean_t spa_has_spare(spa_t *, uint64_t guid);
622 extern uint64_t dva_get_dsize_sync(spa_t *spa, const dva_t *dva);
623 extern uint64_t bp_get_dsize_sync(spa_t *spa, const blkptr_t *bp);
624 extern uint64_t bp_get_dsize(spa_t *spa, const blkptr_t *bp);
625 extern boolean_t spa_has_slogs(spa_t *spa);
626 extern boolean_t spa_is_root(spa_t *spa);
|
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 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright (c) 2012 by Delphix. All rights reserved.
24 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
25 */
26
27 #ifndef _SYS_SPA_H
28 #define _SYS_SPA_H
29
30 #include <sys/avl.h>
31 #include <sys/zfs_context.h>
32 #include <sys/nvpair.h>
33 #include <sys/sysmacros.h>
34 #include <sys/types.h>
35 #include <sys/fs/zfs.h>
36
37 #ifdef __cplusplus
38 extern "C" {
39 #endif
40
41 /*
42 * Forward references that lots of things need.
43 */
77 #define BF32_SET_SB(x, low, len, shift, bias, val) \
78 BF32_SET(x, low, len, ((val) >> (shift)) - (bias))
79 #define BF64_SET_SB(x, low, len, shift, bias, val) \
80 BF64_SET(x, low, len, ((val) >> (shift)) - (bias))
81
82 /*
83 * We currently support nine block sizes, from 512 bytes to 128K.
84 * We could go higher, but the benefits are near-zero and the cost
85 * of COWing a giant block to modify one byte would become excessive.
86 */
87 #define SPA_MINBLOCKSHIFT 9
88 #define SPA_MAXBLOCKSHIFT 17
89 #define SPA_MINBLOCKSIZE (1ULL << SPA_MINBLOCKSHIFT)
90 #define SPA_MAXBLOCKSIZE (1ULL << SPA_MAXBLOCKSHIFT)
91
92 #define SPA_BLOCKSIZES (SPA_MAXBLOCKSHIFT - SPA_MINBLOCKSHIFT + 1)
93
94 /*
95 * Size of block to hold the configuration data (a packed nvlist)
96 */
97 #define SPA_CONFIG_BLOCKSIZE (1ULL << 14)
98
99 /*
100 * The DVA size encodings for LSIZE and PSIZE support blocks up to 32MB.
101 * The ASIZE encoding should be at least 64 times larger (6 more bits)
102 * to support up to 4-way RAID-Z mirror mode with worst-case gang block
103 * overhead, three DVAs per bp, plus one more bit in case we do anything
104 * else that expands the ASIZE.
105 */
106 #define SPA_LSIZEBITS 16 /* LSIZE up to 32M (2^16 * 512) */
107 #define SPA_PSIZEBITS 16 /* PSIZE up to 32M (2^16 * 512) */
108 #define SPA_ASIZEBITS 24 /* ASIZE up to 64 times larger */
109
110 /*
111 * All SPA data is represented by 128-bit data virtual addresses (DVAs).
112 * The members of the dva_t should be considered opaque outside the SPA.
113 */
114 typedef struct dva {
115 uint64_t dva_word[2];
116 } dva_t;
117
245 #define BP_GET_DEDUP(bp) BF64_GET((bp)->blk_prop, 62, 1)
246 #define BP_SET_DEDUP(bp, x) BF64_SET((bp)->blk_prop, 62, 1, x)
247
248 #define BP_GET_BYTEORDER(bp) (0 - BF64_GET((bp)->blk_prop, 63, 1))
249 #define BP_SET_BYTEORDER(bp, x) BF64_SET((bp)->blk_prop, 63, 1, x)
250
251 #define BP_PHYSICAL_BIRTH(bp) \
252 ((bp)->blk_phys_birth ? (bp)->blk_phys_birth : (bp)->blk_birth)
253
254 #define BP_SET_BIRTH(bp, logical, physical) \
255 { \
256 (bp)->blk_birth = (logical); \
257 (bp)->blk_phys_birth = ((logical) == (physical) ? 0 : (physical)); \
258 }
259
260 #define BP_GET_ASIZE(bp) \
261 (DVA_GET_ASIZE(&(bp)->blk_dva[0]) + DVA_GET_ASIZE(&(bp)->blk_dva[1]) + \
262 DVA_GET_ASIZE(&(bp)->blk_dva[2]))
263
264 #define BP_GET_UCSIZE(bp) \
265 ((BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) ? \
266 BP_GET_PSIZE(bp) : BP_GET_LSIZE(bp))
267
268 #define BP_GET_NDVAS(bp) \
269 (!!DVA_GET_ASIZE(&(bp)->blk_dva[0]) + \
270 !!DVA_GET_ASIZE(&(bp)->blk_dva[1]) + \
271 !!DVA_GET_ASIZE(&(bp)->blk_dva[2]))
272
273 #define BP_COUNT_GANG(bp) \
274 (DVA_GET_GANG(&(bp)->blk_dva[0]) + \
275 DVA_GET_GANG(&(bp)->blk_dva[1]) + \
276 DVA_GET_GANG(&(bp)->blk_dva[2]))
277
278 #define DVA_EQUAL(dva1, dva2) \
279 ((dva1)->dva_word[1] == (dva2)->dva_word[1] && \
280 (dva1)->dva_word[0] == (dva2)->dva_word[0])
281
282 #define BP_EQUAL(bp1, bp2) \
283 (BP_PHYSICAL_BIRTH(bp1) == BP_PHYSICAL_BIRTH(bp2) && \
284 DVA_EQUAL(&(bp1)->blk_dva[0], &(bp2)->blk_dva[0]) && \
285 DVA_EQUAL(&(bp1)->blk_dva[1], &(bp2)->blk_dva[1]) && \
386 BP_GET_DEDUP(bp) ? "dedup" : "unique", \
387 copyname[copies], \
388 ws, \
389 (u_longlong_t)BP_GET_LSIZE(bp), \
390 (u_longlong_t)BP_GET_PSIZE(bp), \
391 (u_longlong_t)bp->blk_birth, \
392 (u_longlong_t)BP_PHYSICAL_BIRTH(bp), \
393 (u_longlong_t)bp->blk_fill, \
394 ws, \
395 (u_longlong_t)bp->blk_cksum.zc_word[0], \
396 (u_longlong_t)bp->blk_cksum.zc_word[1], \
397 (u_longlong_t)bp->blk_cksum.zc_word[2], \
398 (u_longlong_t)bp->blk_cksum.zc_word[3]); \
399 } \
400 ASSERT(len < size); \
401 }
402
403 #include <sys/dmu.h>
404
405 #define BP_GET_BUFC_TYPE(bp) \
406 (((BP_GET_LEVEL(bp) > 0) || (DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))) ? \
407 ARC_BUFC_METADATA : ARC_BUFC_DATA)
408
409 typedef enum spa_import_type {
410 SPA_IMPORT_EXISTING,
411 SPA_IMPORT_ASSEMBLE
412 } spa_import_type_t;
413
414 /* state manipulation functions */
415 extern int spa_open(const char *pool, spa_t **, void *tag);
416 extern int spa_open_rewind(const char *pool, spa_t **, void *tag,
417 nvlist_t *policy, nvlist_t **config);
418 extern int spa_get_stats(const char *pool, nvlist_t **config, char *altroot,
419 size_t buflen);
420 extern int spa_create(const char *pool, nvlist_t *config, nvlist_t *props,
421 const char *history_str, nvlist_t *zplprops);
422 extern int spa_import_rootpool(char *devpath, char *devid);
423 extern int spa_import(const char *pool, nvlist_t *config, nvlist_t *props,
424 uint64_t flags);
425 extern nvlist_t *spa_tryimport(nvlist_t *tryconfig);
426 extern int spa_destroy(char *pool);
427 extern int spa_export(char *pool, nvlist_t **oldconfig, boolean_t force,
428 boolean_t hardforce);
429 extern int spa_reset(char *pool);
430 extern void spa_async_request(spa_t *spa, int flag);
431 extern void spa_async_unrequest(spa_t *spa, int flag);
432 extern void spa_async_suspend(spa_t *spa);
433 extern void spa_async_resume(spa_t *spa);
434 extern spa_t *spa_inject_addref(char *pool);
435 extern void spa_inject_delref(spa_t *spa);
436 extern void spa_scan_stat_init(spa_t *spa);
437 extern int spa_scan_get_stats(spa_t *spa, pool_scan_stat_t *ps);
438
439 #define SPA_ASYNC_CONFIG_UPDATE 0x01
556 extern int spa_vdev_state_exit(spa_t *spa, vdev_t *vd, int error);
557
558 /* Log state */
559 typedef enum spa_log_state {
560 SPA_LOG_UNKNOWN = 0, /* unknown log state */
561 SPA_LOG_MISSING, /* missing log(s) */
562 SPA_LOG_CLEAR, /* clear the log(s) */
563 SPA_LOG_GOOD, /* log(s) are good */
564 } spa_log_state_t;
565
566 extern spa_log_state_t spa_get_log_state(spa_t *spa);
567 extern void spa_set_log_state(spa_t *spa, spa_log_state_t state);
568 extern int spa_offline_log(spa_t *spa);
569
570 /* Log claim callback */
571 extern void spa_claim_notify(zio_t *zio);
572
573 /* Accessor functions */
574 extern boolean_t spa_shutting_down(spa_t *spa);
575 extern struct dsl_pool *spa_get_dsl(spa_t *spa);
576 extern boolean_t spa_is_initializing(spa_t *spa);
577 extern blkptr_t *spa_get_rootblkptr(spa_t *spa);
578 extern void spa_set_rootblkptr(spa_t *spa, const blkptr_t *bp);
579 extern void spa_altroot(spa_t *, char *, size_t);
580 extern int spa_sync_pass(spa_t *spa);
581 extern char *spa_name(spa_t *spa);
582 extern uint64_t spa_guid(spa_t *spa);
583 extern uint64_t spa_load_guid(spa_t *spa);
584 extern uint64_t spa_last_synced_txg(spa_t *spa);
585 extern uint64_t spa_first_txg(spa_t *spa);
586 extern uint64_t spa_syncing_txg(spa_t *spa);
587 extern uint64_t spa_version(spa_t *spa);
588 extern pool_state_t spa_state(spa_t *spa);
589 extern spa_load_state_t spa_load_state(spa_t *spa);
590 extern uint64_t spa_freeze_txg(spa_t *spa);
591 extern uint64_t spa_get_asize(spa_t *spa, uint64_t lsize);
592 extern uint64_t spa_get_dspace(spa_t *spa);
593 extern void spa_update_dspace(spa_t *spa);
594 extern uint64_t spa_version(spa_t *spa);
595 extern boolean_t spa_deflate(spa_t *spa);
596 extern metaslab_class_t *spa_normal_class(spa_t *spa);
597 extern metaslab_class_t *spa_log_class(spa_t *spa);
598 extern int spa_max_replication(spa_t *spa);
599 extern int spa_prev_software_version(spa_t *spa);
600 extern int spa_busy(void);
601 extern uint8_t spa_get_failmode(spa_t *spa);
602 extern boolean_t spa_suspended(spa_t *spa);
603 extern uint64_t spa_bootfs(spa_t *spa);
604 extern uint64_t spa_delegation(spa_t *spa);
605 extern objset_t *spa_meta_objset(spa_t *spa);
606
607 /* Miscellaneous support routines */
608 extern void spa_activate_mos_feature(spa_t *spa, const char *feature);
609 extern void spa_deactivate_mos_feature(spa_t *spa, const char *feature);
610 extern int spa_rename(const char *oldname, const char *newname);
611 extern spa_t *spa_by_guid(uint64_t pool_guid, uint64_t device_guid);
612 extern boolean_t spa_guid_exists(uint64_t pool_guid, uint64_t device_guid);
613 extern char *spa_strdup(const char *);
614 extern void spa_strfree(char *);
615 extern uint64_t spa_get_random(uint64_t range);
616 extern uint64_t spa_generate_guid(spa_t *spa);
617 extern void sprintf_blkptr(char *buf, const blkptr_t *bp);
618 extern void spa_freeze(spa_t *spa);
619 extern int spa_change_guid(spa_t *spa);
620 extern void spa_upgrade(spa_t *spa, uint64_t version);
621 extern void spa_evict_all(void);
622 extern vdev_t *spa_lookup_by_guid(spa_t *spa, uint64_t guid,
623 boolean_t l2cache);
624 extern boolean_t spa_has_spare(spa_t *, uint64_t guid);
625 extern uint64_t dva_get_dsize_sync(spa_t *spa, const dva_t *dva);
626 extern uint64_t bp_get_dsize_sync(spa_t *spa, const blkptr_t *bp);
627 extern uint64_t bp_get_dsize(spa_t *spa, const blkptr_t *bp);
628 extern boolean_t spa_has_slogs(spa_t *spa);
629 extern boolean_t spa_is_root(spa_t *spa);
|