dsl_dataset.h revision a7a845e4bf22fd1b2a284729ccd95c7370a0438c
c636315472e4f87313af7be30b7fbcad4b8ca8a4Stephen Gallagher/*
c636315472e4f87313af7be30b7fbcad4b8ca8a4Stephen Gallagher * CDDL HEADER START
fd5a4eacd56700ffb08a73121aeacdc806cb0132Sumit Bose *
8b1f525acd20f36c836e827de3c251088961c5d9Stephen Gallagher * The contents of this file are subject to the terms of the
8b1f525acd20f36c836e827de3c251088961c5d9Stephen Gallagher * Common Development and Distribution License (the "License").
8b1f525acd20f36c836e827de3c251088961c5d9Stephen Gallagher * You may not use this file except in compliance with the License.
8b1f525acd20f36c836e827de3c251088961c5d9Stephen Gallagher *
8b1f525acd20f36c836e827de3c251088961c5d9Stephen Gallagher * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
84ae5edab16ad6be5e3be956cb6fa031c1428eb5Stephen Gallagher * or http://www.opensolaris.org/os/licensing.
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * See the License for the specific language governing permissions
df4cc3a83c5d6700b6a09ff96cb4a6b1949b1aa9Stephen Gallagher * and limitations under the License.
df4cc3a83c5d6700b6a09ff96cb4a6b1949b1aa9Stephen Gallagher *
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * When distributing Covered Code, include this CDDL HEADER in each
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * If applicable, add the following below this CDDL HEADER, with the
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * fields enclosed by brackets "[]" replaced with your own identifying
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * information: Portions Copyright [yyyy] [name of copyright owner]
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher *
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * CDDL HEADER END
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher/*
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * Copyright (c) 2012 by Delphix. All rights reserved.
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * Copyright (c) 2012, Joyent, Inc. All rights reserved.
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * Copyright (c) 2013 Steven Hartland. All rights reserved.
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher */
2a552e43581c74f51205c7141ec9f6e9542509f8Stephen Gallagher
2a552e43581c74f51205c7141ec9f6e9542509f8Stephen Gallagher#ifndef _SYS_DSL_DATASET_H
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#define _SYS_DSL_DATASET_H
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#include <sys/dmu.h>
d921c1eba437662437847279f251a0a5d8f70127Maxim#include <sys/spa.h>
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#include <sys/txg.h>
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#include <sys/zio.h>
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#include <sys/bplist.h>
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#include <sys/dsl_synctask.h>
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#include <sys/zfs_context.h>
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#include <sys/dsl_deadlist.h>
2a5790216f57e9bdfb2930d52860bb5300366536Jakub Hrozek#include <sys/refcount.h>
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#ifdef __cplusplus
4dd615c01357b8715711aad6820ba9595d3ad377Stephen Gallagherextern "C" {
4b6a0d0b3d42e5fdb457f47d9adfa5e66b160256Stephen Gallagher#endif
70e59ed31c5a9c9ed02d9065ddf92be87c887efbJakub Hrozek
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherstruct dsl_dataset;
b32159300fea63222d8dd9200ed634087704ea74Stephen Gallagherstruct dsl_dir;
b32159300fea63222d8dd9200ed634087704ea74Stephen Gallagherstruct dsl_pool;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#define DS_FLAG_INCONSISTENT (1ULL<<0)
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#define DS_IS_INCONSISTENT(ds) \
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher ((ds)->ds_phys->ds_flags & DS_FLAG_INCONSISTENT)
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher/*
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * Note: nopromote can not yet be set, but we want support for it in this
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * on-disk version, so that we don't need to upgrade for it later.
be1ef1c62ad13612be5e1f879476c24452a5d6d0Stephen Gallagher */
be1ef1c62ad13612be5e1f879476c24452a5d6d0Stephen Gallagher#define DS_FLAG_NOPROMOTE (1ULL<<1)
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher/*
4dd615c01357b8715711aad6820ba9595d3ad377Stephen Gallagher * DS_FLAG_UNIQUE_ACCURATE is set if ds_unique_bytes has been correctly
4dd615c01357b8715711aad6820ba9595d3ad377Stephen Gallagher * calculated for head datasets (starting with SPA_VERSION_UNIQUE_ACCURATE,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * refquota/refreservations).
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#define DS_FLAG_UNIQUE_ACCURATE (1ULL<<2)
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher/*
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * DS_FLAG_DEFER_DESTROY is set after 'zfs destroy -d' has been called
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * on a dataset. This allows the dataset to be destroyed using 'zfs release'.
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#define DS_FLAG_DEFER_DESTROY (1ULL<<3)
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#define DS_IS_DEFER_DESTROY(ds) \
c737e1444fb186e349e59bfa9dac4995b720b4b1Jan Zeleny ((ds)->ds_phys->ds_flags & DS_FLAG_DEFER_DESTROY)
f1828234a850dd28465425248a83a993f262918fPavel Březina
f1828234a850dd28465425248a83a993f262918fPavel Březina/*
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * DS_FLAG_CI_DATASET is set if the dataset contains a file system whose
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * name lookups should be performed case-insensitively.
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#define DS_FLAG_CI_DATASET (1ULL<<16)
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#define DS_CREATE_FLAG_NODIRTY (1ULL<<24)
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallaghertypedef struct dsl_dataset_phys {
2827b0d03f7b6bafa504d22a5d7ca39cbda048b3Pavel Březina uint64_t ds_dir_obj; /* DMU_OT_DSL_DIR */
2827b0d03f7b6bafa504d22a5d7ca39cbda048b3Pavel Březina uint64_t ds_prev_snap_obj; /* DMU_OT_DSL_DATASET */
2827b0d03f7b6bafa504d22a5d7ca39cbda048b3Pavel Březina uint64_t ds_prev_snap_txg;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t ds_next_snap_obj; /* DMU_OT_DSL_DATASET */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t ds_snapnames_zapobj; /* DMU_OT_DSL_DS_SNAP_MAP 0 for snaps */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t ds_num_children; /* clone/snap children; ==0 for head */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t ds_creation_time; /* seconds since 1970 */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t ds_creation_txg;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t ds_deadlist_obj; /* DMU_OT_DEADLIST */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher /*
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * ds_referenced_bytes, ds_compressed_bytes, and ds_uncompressed_bytes
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * include all blocks referenced by this dataset, including those
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * shared with any other datasets.
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t ds_referenced_bytes;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t ds_compressed_bytes;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t ds_uncompressed_bytes;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t ds_unique_bytes; /* only relevant to snapshots */
69aaef8719c5cf33ed1c4090fa313ba281bf8a02Jakub Hrozek /*
4dd615c01357b8715711aad6820ba9595d3ad377Stephen Gallagher * The ds_fsid_guid is a 56-bit ID that can change to avoid
fe60346714a73ac3987f786731389320633dd245Pavel Březina * collisions. The ds_guid is a 64-bit ID that will never
4dd615c01357b8715711aad6820ba9595d3ad377Stephen Gallagher * change, so there is a small probability that it will collide.
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t ds_fsid_guid;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t ds_guid;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t ds_flags; /* DS_FLAG_* */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher blkptr_t ds_bp;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t ds_next_clones_obj; /* DMU_OT_DSL_CLONES */
bf5a808fa92007c325c3996e79694badfab201d4Stephen Gallagher uint64_t ds_props_obj; /* DMU_OT_DSL_PROPS for snaps */
bf5a808fa92007c325c3996e79694badfab201d4Stephen Gallagher uint64_t ds_userrefs_obj; /* DMU_OT_USERREFS */
bf5a808fa92007c325c3996e79694badfab201d4Stephen Gallagher uint64_t ds_pad[5]; /* pad out to 320 bytes for good measure */
667db40da4db362d7ca0a1f7f1c4ba40fb71795aJakub Hrozek} dsl_dataset_phys_t;
667db40da4db362d7ca0a1f7f1c4ba40fb71795aJakub Hrozek
bf5a808fa92007c325c3996e79694badfab201d4Stephen Gallaghertypedef struct dsl_dataset {
bf5a808fa92007c325c3996e79694badfab201d4Stephen Gallagher /* Immutable: */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher struct dsl_dir *ds_dir;
bf5a808fa92007c325c3996e79694badfab201d4Stephen Gallagher dsl_dataset_phys_t *ds_phys;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher dmu_buf_t *ds_dbuf;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t ds_object;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t ds_fsid_guid;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher /* only used in syncing context, only valid for non-snapshots: */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher struct dsl_dataset *ds_prev;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher /* has internal locking: */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher dsl_deadlist_t ds_deadlist;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher bplist_t ds_pending_deadlist;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher /* protected by lock on pool's dp_dirty_datasets list */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher txg_node_t ds_dirty_link;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher list_node_t ds_synced_link;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher /*
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * ds_phys->ds_<accounting> is also protected by ds_lock.
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * Protected by ds_lock:
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher kmutex_t ds_lock;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher objset_t *ds_objset;
3b08dec5ee634f83ee18e1753d5ffe0ac5e3c458Jakub Hrozek uint64_t ds_userrefs;
69aaef8719c5cf33ed1c4090fa313ba281bf8a02Jakub Hrozek void *ds_owner;
3b08dec5ee634f83ee18e1753d5ffe0ac5e3c458Jakub Hrozek
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher /*
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * Long holds prevent the ds from being destroyed; they allow the
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * ds to remain held even after dropping the dp_config_rwlock.
69aaef8719c5cf33ed1c4090fa313ba281bf8a02Jakub Hrozek * Owning counts as a long hold. See the comments above
69aaef8719c5cf33ed1c4090fa313ba281bf8a02Jakub Hrozek * dsl_pool_hold() for details.
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher refcount_t ds_longholds;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher /* no locking; only for making guesses */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t ds_trysnap_txg;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher /* for objset_open() */
3b1df539835367cb81cd5ff0f9959947d5642e55Stephen Gallagher kmutex_t ds_opening_lock;
3b1df539835367cb81cd5ff0f9959947d5642e55Stephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t ds_reserved; /* cached refreservation */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t ds_quota; /* cached refquota */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher kmutex_t ds_sendstream_lock;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher list_t ds_sendstreams;
667db40da4db362d7ca0a1f7f1c4ba40fb71795aJakub Hrozek
667db40da4db362d7ca0a1f7f1c4ba40fb71795aJakub Hrozek /* Protected by ds_lock; keep at end of struct for better locality */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher char ds_snapname[MAXNAMELEN];
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher} dsl_dataset_t;
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher/*
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * The max length of a temporary tag prefix is the number of hex digits
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher * required to express UINT64_MAX plus one for the hyphen.
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher */
15b266d9f14dad26da8678a79019749d0f69532eStephen Gallagher#define MAX_TAG_PREFIX_LEN 17
667db40da4db362d7ca0a1f7f1c4ba40fb71795aJakub Hrozek
667db40da4db362d7ca0a1f7f1c4ba40fb71795aJakub Hrozek#define dsl_dataset_is_snapshot(ds) \
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher ((ds)->ds_phys->ds_num_children != 0)
84ae5edab16ad6be5e3be956cb6fa031c1428eb5Stephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#define DS_UNIQUE_IS_ACCURATE(ds) \
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher (((ds)->ds_phys->ds_flags & DS_FLAG_UNIQUE_ACCURATE) != 0)
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherint dsl_dataset_hold(struct dsl_pool *dp, const char *name, void *tag,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher dsl_dataset_t **dsp);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherint dsl_dataset_hold_obj(struct dsl_pool *dp, uint64_t dsobj, void *tag,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher dsl_dataset_t **);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallaghervoid dsl_dataset_rele(dsl_dataset_t *ds, void *tag);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherint dsl_dataset_own(struct dsl_pool *dp, const char *name,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher void *tag, dsl_dataset_t **dsp);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherint dsl_dataset_own_obj(struct dsl_pool *dp, uint64_t dsobj,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher void *tag, dsl_dataset_t **dsp);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallaghervoid dsl_dataset_disown(dsl_dataset_t *ds, void *tag);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallaghervoid dsl_dataset_name(dsl_dataset_t *ds, char *name);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherboolean_t dsl_dataset_tryown(dsl_dataset_t *ds, void *tag);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagheruint64_t dsl_dataset_create_sync(dsl_dir_t *pds, const char *lastname,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher dsl_dataset_t *origin, uint64_t flags, cred_t *, dmu_tx_t *);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagheruint64_t dsl_dataset_create_sync_dd(dsl_dir_t *dd, dsl_dataset_t *origin,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t flags, dmu_tx_t *tx);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherint dsl_dataset_snapshot(nvlist_t *snaps, nvlist_t *props, nvlist_t *errors);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherint dsl_dataset_promote(const char *name, char *conflsnap);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherint dsl_dataset_clone_swap(dsl_dataset_t *clone, dsl_dataset_t *origin_head,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher boolean_t force);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherint dsl_dataset_rename_snapshot(const char *fsname,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher const char *oldsnapname, const char *newsnapname, boolean_t recursive);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherint dsl_dataset_snapshot_tmp(const char *fsname, const char *snapname,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher minor_t cleanup_minor, const char *htag);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherblkptr_t *dsl_dataset_get_blkptr(dsl_dataset_t *ds);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallaghervoid dsl_dataset_set_blkptr(dsl_dataset_t *ds, blkptr_t *bp, dmu_tx_t *tx);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
bfbf5cb0f00c60c0f000f56c282377b13b9a89abSumit Bosespa_t *dsl_dataset_get_spa(dsl_dataset_t *ds);
b32159300fea63222d8dd9200ed634087704ea74Stephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherboolean_t dsl_dataset_modified_since_lastsnap(dsl_dataset_t *ds);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallaghervoid dsl_dataset_sync(dsl_dataset_t *os, zio_t *zio, dmu_tx_t *tx);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallaghervoid dsl_dataset_block_born(dsl_dataset_t *ds, const blkptr_t *bp,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher dmu_tx_t *tx);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherint dsl_dataset_block_kill(dsl_dataset_t *ds, const blkptr_t *bp,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher dmu_tx_t *tx, boolean_t async);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherboolean_t dsl_dataset_block_freeable(dsl_dataset_t *ds, const blkptr_t *bp,
0ef783e186ef1c9f60e61a4e8e54c44cb366fdfePavel Březina uint64_t blk_birth);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagheruint64_t dsl_dataset_prev_snap_txg(dsl_dataset_t *ds);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallaghervoid dsl_dataset_dirty(dsl_dataset_t *ds, dmu_tx_t *tx);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallaghervoid dsl_dataset_stats(dsl_dataset_t *os, nvlist_t *nv);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallaghervoid dsl_dataset_fast_stat(dsl_dataset_t *ds, dmu_objset_stats_t *stat);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallaghervoid dsl_dataset_space(dsl_dataset_t *ds,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t *refdbytesp, uint64_t *availbytesp,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t *usedobjsp, uint64_t *availobjsp);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagheruint64_t dsl_dataset_fsid_guid(dsl_dataset_t *ds);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherint dsl_dataset_space_written(dsl_dataset_t *oldsnap, dsl_dataset_t *new,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t *usedp, uint64_t *compp, uint64_t *uncompp);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherint dsl_dataset_space_wouldfree(dsl_dataset_t *firstsnap, dsl_dataset_t *last,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t *usedp, uint64_t *compp, uint64_t *uncompp);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherboolean_t dsl_dataset_is_dirty(dsl_dataset_t *ds);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherint dsl_dsobj_to_dsname(char *pname, uint64_t obj, char *buf);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherint dsl_dataset_check_quota(dsl_dataset_t *ds, boolean_t check_quota,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t asize, uint64_t inflight, uint64_t *used,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t *ref_rsrv);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherint dsl_dataset_set_refquota(const char *dsname, zprop_source_t source,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t quota);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherint dsl_dataset_set_refreservation(const char *dsname, zprop_source_t source,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t reservation);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherboolean_t dsl_dataset_is_before(dsl_dataset_t *later, dsl_dataset_t *earlier);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallaghervoid dsl_dataset_long_hold(dsl_dataset_t *ds, void *tag);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallaghervoid dsl_dataset_long_rele(dsl_dataset_t *ds, void *tag);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherboolean_t dsl_dataset_long_held(dsl_dataset_t *ds);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherint dsl_dataset_clone_swap_check_impl(dsl_dataset_t *clone,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher dsl_dataset_t *origin_head, boolean_t force);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallaghervoid dsl_dataset_clone_swap_sync_impl(dsl_dataset_t *clone,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher dsl_dataset_t *origin_head, dmu_tx_t *tx);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherint dsl_dataset_snapshot_check_impl(dsl_dataset_t *ds, const char *snapname,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher dmu_tx_t *tx);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallaghervoid dsl_dataset_snapshot_sync_impl(dsl_dataset_t *ds, const char *snapname,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher dmu_tx_t *tx);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallaghervoid dsl_dataset_remove_from_next_clones(dsl_dataset_t *ds, uint64_t obj,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher dmu_tx_t *tx);
126c9338cf12a3e4404c36bbe4ec14b18f23537cMaximvoid dsl_dataset_recalc_head_uniq(dsl_dataset_t *ds);
fe2091327ff44f80d6681c261494e4432404e9baStephen Gallagherint dsl_dataset_get_snapname(dsl_dataset_t *ds);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherint dsl_dataset_snap_lookup(dsl_dataset_t *ds, const char *name,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher uint64_t *value);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherint dsl_dataset_snap_remove(dsl_dataset_t *ds, const char *name, dmu_tx_t *tx);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallaghervoid dsl_dataset_set_refreservation_sync_impl(dsl_dataset_t *ds,
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher zprop_source_t source, uint64_t value, dmu_tx_t *tx);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagherint dsl_dataset_rollback(const char *fsname);
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#ifdef ZFS_DEBUG
2e6087c6cc903d5164b9a1d5e3d791fd046001d9Jakub Hrozek#define dprintf_ds(ds, fmt, ...) do { \
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher if (zfs_flags & ZFS_DEBUG_DPRINTF) { \
126c9338cf12a3e4404c36bbe4ec14b18f23537cMaxim char *__ds_name = kmem_alloc(MAXNAMELEN, KM_SLEEP); \
fe2091327ff44f80d6681c261494e4432404e9baStephen Gallagher dsl_dataset_name(ds, __ds_name); \
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher dprintf("ds=%s " fmt, __ds_name, __VA_ARGS__); \
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher kmem_free(__ds_name, MAXNAMELEN); \
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher } \
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher_NOTE(CONSTCOND) } while (0)
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#else
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#define dprintf_ds(dd, fmt, ...)
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#endif
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#ifdef __cplusplus
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher}
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher#endif
bfbf5cb0f00c60c0f000f56c282377b13b9a89abSumit Bose
fe2091327ff44f80d6681c261494e4432404e9baStephen Gallagher#endif /* _SYS_DSL_DATASET_H */
551aa6c36797ed720487f5974dcadabf19e6ff9fStephen Gallagher