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 */
44 typedef struct spa spa_t;
45 typedef struct vdev vdev_t;
46 typedef struct metaslab metaslab_t;
47 typedef struct metaslab_group metaslab_group_t;
48 typedef struct metaslab_class metaslab_class_t;
49 typedef struct zio zio_t;
50 typedef struct zilog zilog_t;
51 typedef struct spa_aux_vdev spa_aux_vdev_t;
52 typedef struct ddt ddt_t;
53 typedef struct ddt_entry ddt_entry_t;
54 struct dsl_pool;
55
56 /*
57 * General-purpose 32-bit and 64-bit bitfield encodings.
58 */
59 #define BF32_DECODE(x, low, len) P2PHASE((x) >> (low), 1U << (len))
60 #define BF64_DECODE(x, low, len) P2PHASE((x) >> (low), 1ULL << (len))
61 #define BF32_ENCODE(x, low, len) (P2PHASE((x), 1U << (len)) << (low))
62 #define BF64_ENCODE(x, low, len) (P2PHASE((x), 1ULL << (len)) << (low))
63
64 #define BF32_GET(x, low, len) BF32_DECODE(x, low, len)
65 #define BF64_GET(x, low, len) BF64_DECODE(x, low, len)
66
67 #define BF32_SET(x, low, len, val) \
68 ((x) ^= BF32_ENCODE((x >> low) ^ (val), low, len))
69 #define BF64_SET(x, low, len, val) \
70 ((x) ^= BF64_ENCODE((x >> low) ^ (val), low, len))
71
72 #define BF32_GET_SB(x, low, len, shift, bias) \
73 ((BF32_GET(x, low, len) + (bias)) << (shift))
74 #define BF64_GET_SB(x, low, len, shift, bias) \
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
440 #define SPA_ASYNC_REMOVE 0x02
441 #define SPA_ASYNC_PROBE 0x04
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);
630 extern boolean_t spa_writeable(spa_t *spa);
631
632 extern int spa_mode(spa_t *spa);
633 extern uint64_t strtonum(const char *str, char **nptr);
634
635 /* history logging */
636 typedef enum history_log_type {
637 LOG_CMD_POOL_CREATE,
638 LOG_CMD_NORMAL,
639 LOG_INTERNAL
640 } history_log_type_t;
641
642 typedef struct history_arg {
643 char *ha_history_str;
644 history_log_type_t ha_log_type;
645 history_internal_events_t ha_event;
646 char *ha_zone;
647 uid_t ha_uid;
648 } history_arg_t;
649
650 extern char *spa_his_ievent_table[];
651
652 extern void spa_history_create_obj(spa_t *spa, dmu_tx_t *tx);
653 extern int spa_history_get(spa_t *spa, uint64_t *offset, uint64_t *len_read,
654 char *his_buf);
655 extern int spa_history_log(spa_t *spa, const char *his_buf,
656 history_log_type_t what);
657 extern void spa_history_log_internal(history_internal_events_t event,
658 spa_t *spa, dmu_tx_t *tx, const char *fmt, ...);
659 extern void spa_history_log_version(spa_t *spa, history_internal_events_t evt);
660
661 /* error handling */
662 struct zbookmark;
663 extern void spa_log_error(spa_t *spa, zio_t *zio);
664 extern void zfs_ereport_post(const char *class, spa_t *spa, vdev_t *vd,
665 zio_t *zio, uint64_t stateoroffset, uint64_t length);
666 extern void zfs_post_remove(spa_t *spa, vdev_t *vd);
667 extern void zfs_post_state_change(spa_t *spa, vdev_t *vd);
668 extern void zfs_post_autoreplace(spa_t *spa, vdev_t *vd);
669 extern uint64_t spa_get_errlog_size(spa_t *spa);
670 extern int spa_get_errlog(spa_t *spa, void *uaddr, size_t *count);
671 extern void spa_errlog_rotate(spa_t *spa);
672 extern void spa_errlog_drain(spa_t *spa);
673 extern void spa_errlog_sync(spa_t *spa, uint64_t txg);
674 extern void spa_get_errlists(spa_t *spa, avl_tree_t *last, avl_tree_t *scrub);
675
676 /* vdev cache */
677 extern void vdev_cache_stat_init(void);
678 extern void vdev_cache_stat_fini(void);
679
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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 */
44 typedef struct spa spa_t;
45 typedef struct vdev vdev_t;
46 typedef struct metaslab metaslab_t;
47 typedef struct metaslab_group metaslab_group_t;
48 typedef struct metaslab_class metaslab_class_t;
49 typedef struct zio zio_t;
50 typedef struct zilog zilog_t;
51 typedef struct spa_aux_vdev spa_aux_vdev_t;
52 typedef struct ddt ddt_t;
53 typedef struct ddt_entry ddt_entry_t;
54 struct dsl_pool;
55 struct dsl_dataset;
56
57 /*
58 * General-purpose 32-bit and 64-bit bitfield encodings.
59 */
60 #define BF32_DECODE(x, low, len) P2PHASE((x) >> (low), 1U << (len))
61 #define BF64_DECODE(x, low, len) P2PHASE((x) >> (low), 1ULL << (len))
62 #define BF32_ENCODE(x, low, len) (P2PHASE((x), 1U << (len)) << (low))
63 #define BF64_ENCODE(x, low, len) (P2PHASE((x), 1ULL << (len)) << (low))
64
65 #define BF32_GET(x, low, len) BF32_DECODE(x, low, len)
66 #define BF64_GET(x, low, len) BF64_DECODE(x, low, len)
67
68 #define BF32_SET(x, low, len, val) \
69 ((x) ^= BF32_ENCODE((x >> low) ^ (val), low, len))
70 #define BF64_SET(x, low, len, val) \
71 ((x) ^= BF64_ENCODE((x >> low) ^ (val), low, len))
72
73 #define BF32_GET_SB(x, low, len, shift, bias) \
74 ((BF32_GET(x, low, len) + (bias)) << (shift))
75 #define BF64_GET_SB(x, low, len, shift, bias) \
402 }
403
404 #include <sys/dmu.h>
405
406 #define BP_GET_BUFC_TYPE(bp) \
407 (((BP_GET_LEVEL(bp) > 0) || (DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))) ? \
408 ARC_BUFC_METADATA : ARC_BUFC_DATA)
409
410 typedef enum spa_import_type {
411 SPA_IMPORT_EXISTING,
412 SPA_IMPORT_ASSEMBLE
413 } spa_import_type_t;
414
415 /* state manipulation functions */
416 extern int spa_open(const char *pool, spa_t **, void *tag);
417 extern int spa_open_rewind(const char *pool, spa_t **, void *tag,
418 nvlist_t *policy, nvlist_t **config);
419 extern int spa_get_stats(const char *pool, nvlist_t **config, char *altroot,
420 size_t buflen);
421 extern int spa_create(const char *pool, nvlist_t *config, nvlist_t *props,
422 nvlist_t *zplprops);
423 extern int spa_import_rootpool(char *devpath, char *devid);
424 extern int spa_import(const char *pool, nvlist_t *config, nvlist_t *props,
425 uint64_t flags);
426 extern nvlist_t *spa_tryimport(nvlist_t *tryconfig);
427 extern int spa_destroy(char *pool);
428 extern int spa_export(char *pool, nvlist_t **oldconfig, boolean_t force,
429 boolean_t hardforce);
430 extern int spa_reset(char *pool);
431 extern void spa_async_request(spa_t *spa, int flag);
432 extern void spa_async_unrequest(spa_t *spa, int flag);
433 extern void spa_async_suspend(spa_t *spa);
434 extern void spa_async_resume(spa_t *spa);
435 extern spa_t *spa_inject_addref(char *pool);
436 extern void spa_inject_delref(spa_t *spa);
437 extern void spa_scan_stat_init(spa_t *spa);
438 extern int spa_scan_get_stats(spa_t *spa, pool_scan_stat_t *ps);
439
440 #define SPA_ASYNC_CONFIG_UPDATE 0x01
441 #define SPA_ASYNC_REMOVE 0x02
442 #define SPA_ASYNC_PROBE 0x04
616 extern uint64_t spa_get_random(uint64_t range);
617 extern uint64_t spa_generate_guid(spa_t *spa);
618 extern void sprintf_blkptr(char *buf, const blkptr_t *bp);
619 extern void spa_freeze(spa_t *spa);
620 extern int spa_change_guid(spa_t *spa);
621 extern void spa_upgrade(spa_t *spa, uint64_t version);
622 extern void spa_evict_all(void);
623 extern vdev_t *spa_lookup_by_guid(spa_t *spa, uint64_t guid,
624 boolean_t l2cache);
625 extern boolean_t spa_has_spare(spa_t *, uint64_t guid);
626 extern uint64_t dva_get_dsize_sync(spa_t *spa, const dva_t *dva);
627 extern uint64_t bp_get_dsize_sync(spa_t *spa, const blkptr_t *bp);
628 extern uint64_t bp_get_dsize(spa_t *spa, const blkptr_t *bp);
629 extern boolean_t spa_has_slogs(spa_t *spa);
630 extern boolean_t spa_is_root(spa_t *spa);
631 extern boolean_t spa_writeable(spa_t *spa);
632
633 extern int spa_mode(spa_t *spa);
634 extern uint64_t strtonum(const char *str, char **nptr);
635
636 extern char *spa_his_ievent_table[];
637
638 extern void spa_history_create_obj(spa_t *spa, dmu_tx_t *tx);
639 extern int spa_history_get(spa_t *spa, uint64_t *offset, uint64_t *len_read,
640 char *his_buf);
641 extern int spa_history_log(spa_t *spa, const char *his_buf);
642 extern int spa_history_log_nvl(spa_t *spa, nvlist_t *nvl);
643 extern void spa_history_log_version(spa_t *spa, const char *operation);
644 extern void spa_history_log_internal(spa_t *spa, const char *operation,
645 dmu_tx_t *tx, const char *fmt, ...);
646 extern void spa_history_log_internal_ds(struct dsl_dataset *ds, const char *op,
647 dmu_tx_t *tx, const char *fmt, ...);
648 extern void spa_history_log_internal_dd(dsl_dir_t *dd, const char *operation,
649 dmu_tx_t *tx, const char *fmt, ...);
650
651 /* error handling */
652 struct zbookmark;
653 extern void spa_log_error(spa_t *spa, zio_t *zio);
654 extern void zfs_ereport_post(const char *class, spa_t *spa, vdev_t *vd,
655 zio_t *zio, uint64_t stateoroffset, uint64_t length);
656 extern void zfs_post_remove(spa_t *spa, vdev_t *vd);
657 extern void zfs_post_state_change(spa_t *spa, vdev_t *vd);
658 extern void zfs_post_autoreplace(spa_t *spa, vdev_t *vd);
659 extern uint64_t spa_get_errlog_size(spa_t *spa);
660 extern int spa_get_errlog(spa_t *spa, void *uaddr, size_t *count);
661 extern void spa_errlog_rotate(spa_t *spa);
662 extern void spa_errlog_drain(spa_t *spa);
663 extern void spa_errlog_sync(spa_t *spa, uint64_t txg);
664 extern void spa_get_errlists(spa_t *spa, avl_tree_t *last, avl_tree_t *scrub);
665
666 /* vdev cache */
667 extern void vdev_cache_stat_init(void);
668 extern void vdev_cache_stat_fini(void);
669
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