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/*
* CDDL HEADER START
*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2013, 2018 by Delphix. All rights reserved.
*/
#ifndef _SYS_DSL_BOOKMARK_H
#define _SYS_DSL_BOOKMARK_H
#include <sys/zfs_context.h>
#include <sys/refcount.h>
#include <sys/dsl_dataset.h>
#include <sys/dsl_pool.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* On disk zap object.
*/
typedef struct zfs_bookmark_phys {
uint64_t zbm_guid; /* guid of bookmarked dataset */
uint64_t zbm_creation_txg; /* birth transaction group */
uint64_t zbm_creation_time; /* bookmark creation time */
/* fields used for redacted send / recv */
uint64_t zbm_redaction_obj; /* redaction list object */
uint64_t zbm_flags; /* ZBM_FLAG_* */
/* fields used for bookmark written size */
uint64_t zbm_referenced_bytes_refd;
uint64_t zbm_compressed_bytes_refd;
uint64_t zbm_uncompressed_bytes_refd;
uint64_t zbm_referenced_freed_before_next_snap;
uint64_t zbm_compressed_freed_before_next_snap;
uint64_t zbm_uncompressed_freed_before_next_snap;
/* fields used for raw sends */
uint64_t zbm_ivset_guid;
} zfs_bookmark_phys_t;
#define BOOKMARK_PHYS_SIZE_V1 (3 * sizeof (uint64_t))
#define BOOKMARK_PHYS_SIZE_V2 (12 * sizeof (uint64_t))
typedef enum zbm_flags {
ZBM_FLAG_HAS_FBN = (1 << 0),
ZBM_FLAG_SNAPSHOT_EXISTS = (1 << 1),
} zbm_flags_t;
typedef struct redaction_list_phys {
uint64_t rlp_last_object;
uint64_t rlp_last_blkid;
uint64_t rlp_num_entries;
uint64_t rlp_num_snaps;
uint64_t rlp_snaps[]; /* variable length */
} redaction_list_phys_t;
typedef struct redaction_list {
dmu_buf_user_t rl_dbu;
redaction_list_phys_t *rl_phys;
dmu_buf_t *rl_dbuf;
uint64_t rl_object;
zfs_refcount_t rl_longholds;
objset_t *rl_mos;
} redaction_list_t;
/* node in ds_bookmarks */
typedef struct dsl_bookmark_node {
char *dbn_name; /* free with strfree() */
kmutex_t dbn_lock; /* protects dirty/phys in block_killed */
boolean_t dbn_dirty; /* in currently syncing txg */
zfs_bookmark_phys_t dbn_phys;
avl_node_t dbn_node;
} dsl_bookmark_node_t;
typedef struct redact_block_phys {
uint64_t rbp_object;
uint64_t rbp_blkid;
/*
* The top 16 bits of this field represent the block size in sectors of
* the blocks in question; the bottom 48 bits are used to store the
* number of consecutive blocks that are in the redaction list. They
* should be accessed using the inline functions below.
*/
uint64_t rbp_size_count;
uint64_t rbp_padding;
} redact_block_phys_t;
typedef int (*rl_traverse_callback_t)(redact_block_phys_t *, void *);
int dsl_bookmark_create(nvlist_t *, nvlist_t *);
int dsl_bookmark_create_redacted(const char *, const char *, uint64_t,
uint64_t *, void *, redaction_list_t **);
int dsl_get_bookmarks(const char *, nvlist_t *, nvlist_t *);
int dsl_get_bookmarks_impl(dsl_dataset_t *, nvlist_t *, nvlist_t *);
int dsl_get_bookmark_props(const char *, const char *, nvlist_t *);
int dsl_bookmark_destroy(nvlist_t *, nvlist_t *);
int dsl_bookmark_lookup(struct dsl_pool *, const char *,
struct dsl_dataset *, zfs_bookmark_phys_t *);
int dsl_bookmark_lookup_impl(dsl_dataset_t *, const char *,
zfs_bookmark_phys_t *);
int dsl_redaction_list_hold_obj(struct dsl_pool *, uint64_t, void *,
redaction_list_t **);
void dsl_redaction_list_rele(redaction_list_t *, void *);
void dsl_redaction_list_long_hold(struct dsl_pool *, redaction_list_t *,
void *);
void dsl_redaction_list_long_rele(redaction_list_t *, void *);
boolean_t dsl_redaction_list_long_held(redaction_list_t *);
int dsl_bookmark_init_ds(dsl_dataset_t *);
void dsl_bookmark_fini_ds(dsl_dataset_t *);
boolean_t dsl_bookmark_ds_destroyed(dsl_dataset_t *, dmu_tx_t *);
void dsl_bookmark_snapshotted(dsl_dataset_t *, dmu_tx_t *);
void dsl_bookmark_block_killed(dsl_dataset_t *, const blkptr_t *, dmu_tx_t *);
void dsl_bookmark_sync_done(dsl_dataset_t *, dmu_tx_t *);
void dsl_bookmark_node_add(dsl_dataset_t *, dsl_bookmark_node_t *, dmu_tx_t *);
uint64_t dsl_bookmark_latest_txg(dsl_dataset_t *);
int dsl_redaction_list_traverse(redaction_list_t *, zbookmark_phys_t *,
rl_traverse_callback_t, void *);
void dsl_bookmark_next_changed(dsl_dataset_t *, dsl_dataset_t *, dmu_tx_t *);
#ifdef __cplusplus
}
#endif
#endif /* _SYS_DSL_BOOKMARK_H */
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