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