fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * CDDL HEADER START
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * The contents of this file are subject to the terms of the
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * Common Development and Distribution License (the "License").
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * You may not use this file except in compliance with the License.
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
fa9e4066f08beec538e775443c5be79dd423fcabahrens * or http://www.opensolaris.org/os/licensing.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * See the License for the specific language governing permissions
fa9e4066f08beec538e775443c5be79dd423fcabahrens * and limitations under the License.
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * When distributing Covered Code, include this CDDL HEADER in each
fa9e4066f08beec538e775443c5be79dd423fcabahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If applicable, add the following below this CDDL HEADER, with the
fa9e4066f08beec538e775443c5be79dd423fcabahrens * fields enclosed by brackets "[]" replaced with your own identifying
fa9e4066f08beec538e775443c5be79dd423fcabahrens * information: Portions Copyright [yyyy] [name of copyright owner]
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * CDDL HEADER END
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
ca0cc3918a1789fa839194af2a9245f801a06b1aMatthew Ahrens * Copyright (c) 2011, 2015 by Delphix. All rights reserved.
a2afb611b30628fb74ad9eade4ae465f9031e262Jerry Jelinek * Copyright (c) 2013, Joyent, Inc. All rights reserved.
a7a845e4bf22fd1b2a284729ccd95c7370a0438cSteven Hartland * Copyright (c) 2013 Steven Hartland. All rights reserved.
bc9014e6a81272073b9854d9f65dd59e18d18c35Justin Gibbs * Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
c3d26abc9ee97b4f60233556aadeb57e0bd30bb9Matthew Ahrens * Copyright (c) 2014 Integros [integros.com]
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#ifndef _SYS_DSL_DATASET_H
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define _SYS_DSL_DATASET_H
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/dmu.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/spa.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/txg.h>
c717a56157ae0e6fca6a1e3689ae1edc385716a3maybee#include <sys/zio.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/bplist.h>
1d452cf5123cb6ac0a013a4dbd4dcceeb0da314dahrens#include <sys/dsl_synctask.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/zfs_context.h>
cde58dbc6a23d4d38db7c8866312be83221c765fMatthew Ahrens#include <sys/dsl_deadlist.h>
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens#include <sys/refcount.h>
c166b69d29138aed7a415fe7cef698e54c6ae945Paul Dagnelie#include <sys/rrwlock.h>
ca0cc3918a1789fa839194af2a9245f801a06b1aMatthew Ahrens#include <zfeature_common.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#ifdef __cplusplus
fa9e4066f08beec538e775443c5be79dd423fcabahrensextern "C" {
fa9e4066f08beec538e775443c5be79dd423fcabahrens#endif
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensstruct dsl_dataset;
fa9e4066f08beec538e775443c5be79dd423fcabahrensstruct dsl_dir;
fa9e4066f08beec538e775443c5be79dd423fcabahrensstruct dsl_pool;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
99653d4ee642c6528e88224f12409a5f23060994eschrock#define DS_FLAG_INCONSISTENT (1ULL<<0)
745cd3c5371d020efae7a911c58c526aa1fd0dbamaybee#define DS_IS_INCONSISTENT(ds) \
c1379625401dfbe1c39b79136dd384a571d47fdeJustin T. Gibbs (dsl_dataset_phys(ds)->ds_flags & DS_FLAG_INCONSISTENT)
2acef22db7808606888f8f92715629ff3ba555b9Matthew Ahrens
99653d4ee642c6528e88224f12409a5f23060994eschrock/*
2acef22db7808606888f8f92715629ff3ba555b9Matthew Ahrens * Do not allow this dataset to be promoted.
99653d4ee642c6528e88224f12409a5f23060994eschrock */
99653d4ee642c6528e88224f12409a5f23060994eschrock#define DS_FLAG_NOPROMOTE (1ULL<<1)
99653d4ee642c6528e88224f12409a5f23060994eschrock
a9799022bd90b13722204e80112efaa5bf573099ck/*
a9799022bd90b13722204e80112efaa5bf573099ck * DS_FLAG_UNIQUE_ACCURATE is set if ds_unique_bytes has been correctly
a9799022bd90b13722204e80112efaa5bf573099ck * calculated for head datasets (starting with SPA_VERSION_UNIQUE_ACCURATE,
a9799022bd90b13722204e80112efaa5bf573099ck * refquota/refreservations).
a9799022bd90b13722204e80112efaa5bf573099ck */
a9799022bd90b13722204e80112efaa5bf573099ck#define DS_FLAG_UNIQUE_ACCURATE (1ULL<<2)
a9799022bd90b13722204e80112efaa5bf573099ck
842727c2f41f01b380de4f5e787d905702870f23Chris Kirby/*
842727c2f41f01b380de4f5e787d905702870f23Chris Kirby * DS_FLAG_DEFER_DESTROY is set after 'zfs destroy -d' has been called
842727c2f41f01b380de4f5e787d905702870f23Chris Kirby * on a dataset. This allows the dataset to be destroyed using 'zfs release'.
842727c2f41f01b380de4f5e787d905702870f23Chris Kirby */
842727c2f41f01b380de4f5e787d905702870f23Chris Kirby#define DS_FLAG_DEFER_DESTROY (1ULL<<3)
842727c2f41f01b380de4f5e787d905702870f23Chris Kirby#define DS_IS_DEFER_DESTROY(ds) \
c1379625401dfbe1c39b79136dd384a571d47fdeJustin T. Gibbs (dsl_dataset_phys(ds)->ds_flags & DS_FLAG_DEFER_DESTROY)
842727c2f41f01b380de4f5e787d905702870f23Chris Kirby
2acef22db7808606888f8f92715629ff3ba555b9Matthew Ahrens/*
2acef22db7808606888f8f92715629ff3ba555b9Matthew Ahrens * DS_FIELD_* are strings that are used in the "extensified" dataset zap object.
2acef22db7808606888f8f92715629ff3ba555b9Matthew Ahrens * They should be of the format <reverse-dns>:<field>.
2acef22db7808606888f8f92715629ff3ba555b9Matthew Ahrens */
2acef22db7808606888f8f92715629ff3ba555b9Matthew Ahrens
78f171005391b928aaf1642b3206c534ed644332Matthew Ahrens/*
78f171005391b928aaf1642b3206c534ed644332Matthew Ahrens * This field's value is the object ID of a zap object which contains the
78f171005391b928aaf1642b3206c534ed644332Matthew Ahrens * bookmarks of this dataset. If it is present, then this dataset is counted
78f171005391b928aaf1642b3206c534ed644332Matthew Ahrens * in the refcount of the SPA_FEATURES_BOOKMARKS feature.
78f171005391b928aaf1642b3206c534ed644332Matthew Ahrens */
78f171005391b928aaf1642b3206c534ed644332Matthew Ahrens#define DS_FIELD_BOOKMARK_NAMES "com.delphix:bookmarks"
78f171005391b928aaf1642b3206c534ed644332Matthew Ahrens
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrens/*
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrens * These fields are set on datasets that are in the middle of a resumable
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrens * receive, and allow the sender to resume the send if it is interrupted.
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrens */
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrens#define DS_FIELD_RESUME_FROMGUID "com.delphix:resume_fromguid"
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrens#define DS_FIELD_RESUME_TONAME "com.delphix:resume_toname"
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrens#define DS_FIELD_RESUME_TOGUID "com.delphix:resume_toguid"
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrens#define DS_FIELD_RESUME_OBJECT "com.delphix:resume_object"
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrens#define DS_FIELD_RESUME_OFFSET "com.delphix:resume_offset"
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrens#define DS_FIELD_RESUME_BYTES "com.delphix:resume_bytes"
5602294fda888d923d57a78bafdaf48ae6223deaDan Kimmel#define DS_FIELD_RESUME_LARGEBLOCK "com.delphix:resume_largeblockok"
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrens#define DS_FIELD_RESUME_EMBEDOK "com.delphix:resume_embedok"
5602294fda888d923d57a78bafdaf48ae6223deaDan Kimmel#define DS_FIELD_RESUME_COMPRESSOK "com.delphix:resume_compressok"
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrens
ab04eb8ef60d9dc9614d6cccffc474f24ca1d162timh/*
ab04eb8ef60d9dc9614d6cccffc474f24ca1d162timh * DS_FLAG_CI_DATASET is set if the dataset contains a file system whose
ab04eb8ef60d9dc9614d6cccffc474f24ca1d162timh * name lookups should be performed case-insensitively.
ab04eb8ef60d9dc9614d6cccffc474f24ca1d162timh */
ab04eb8ef60d9dc9614d6cccffc474f24ca1d162timh#define DS_FLAG_CI_DATASET (1ULL<<16)
ab04eb8ef60d9dc9614d6cccffc474f24ca1d162timh
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens#define DS_CREATE_FLAG_NODIRTY (1ULL<<24)
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrenstypedef struct dsl_dataset_phys {
088f389458728c464569a5506b58070254fa4f7dahrens uint64_t ds_dir_obj; /* DMU_OT_DSL_DIR */
088f389458728c464569a5506b58070254fa4f7dahrens uint64_t ds_prev_snap_obj; /* DMU_OT_DSL_DATASET */
fa9e4066f08beec538e775443c5be79dd423fcabahrens uint64_t ds_prev_snap_txg;
088f389458728c464569a5506b58070254fa4f7dahrens uint64_t ds_next_snap_obj; /* DMU_OT_DSL_DATASET */
088f389458728c464569a5506b58070254fa4f7dahrens uint64_t ds_snapnames_zapobj; /* DMU_OT_DSL_DS_SNAP_MAP 0 for snaps */
fa9e4066f08beec538e775443c5be79dd423fcabahrens uint64_t ds_num_children; /* clone/snap children; ==0 for head */
fa9e4066f08beec538e775443c5be79dd423fcabahrens uint64_t ds_creation_time; /* seconds since 1970 */
fa9e4066f08beec538e775443c5be79dd423fcabahrens uint64_t ds_creation_txg;
cde58dbc6a23d4d38db7c8866312be83221c765fMatthew Ahrens uint64_t ds_deadlist_obj; /* DMU_OT_DEADLIST */
ad135b5d644628e791c3188a6ecbd9c257961ef8Christopher Siden /*
ad135b5d644628e791c3188a6ecbd9c257961ef8Christopher Siden * ds_referenced_bytes, ds_compressed_bytes, and ds_uncompressed_bytes
ad135b5d644628e791c3188a6ecbd9c257961ef8Christopher Siden * include all blocks referenced by this dataset, including those
ad135b5d644628e791c3188a6ecbd9c257961ef8Christopher Siden * shared with any other datasets.
ad135b5d644628e791c3188a6ecbd9c257961ef8Christopher Siden */
ad135b5d644628e791c3188a6ecbd9c257961ef8Christopher Siden uint64_t ds_referenced_bytes;
fa9e4066f08beec538e775443c5be79dd423fcabahrens uint64_t ds_compressed_bytes;
fa9e4066f08beec538e775443c5be79dd423fcabahrens uint64_t ds_uncompressed_bytes;
63360950109af2ce85a962ca61f40b8782f11100mp uint64_t ds_unique_bytes; /* only relevant to snapshots */
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * The ds_fsid_guid is a 56-bit ID that can change to avoid
fa9e4066f08beec538e775443c5be79dd423fcabahrens * collisions. The ds_guid is a 64-bit ID that will never
fa9e4066f08beec538e775443c5be79dd423fcabahrens * change, so there is a small probability that it will collide.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens uint64_t ds_fsid_guid;
fa9e4066f08beec538e775443c5be79dd423fcabahrens uint64_t ds_guid;
088f389458728c464569a5506b58070254fa4f7dahrens uint64_t ds_flags; /* DS_FLAG_* */
fa9e4066f08beec538e775443c5be79dd423fcabahrens blkptr_t ds_bp;
bb0ade0978a02d3fe0b0165cd4725fdcb593fbfbahrens uint64_t ds_next_clones_obj; /* DMU_OT_DSL_CLONES */
bb0ade0978a02d3fe0b0165cd4725fdcb593fbfbahrens uint64_t ds_props_obj; /* DMU_OT_DSL_PROPS for snaps */
842727c2f41f01b380de4f5e787d905702870f23Chris Kirby uint64_t ds_userrefs_obj; /* DMU_OT_USERREFS */
842727c2f41f01b380de4f5e787d905702870f23Chris Kirby uint64_t ds_pad[5]; /* pad out to 320 bytes for good measure */
fa9e4066f08beec538e775443c5be79dd423fcabahrens} dsl_dataset_phys_t;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrenstypedef struct dsl_dataset {
bc9014e6a81272073b9854d9f65dd59e18d18c35Justin Gibbs dmu_buf_user_t ds_dbu;
c166b69d29138aed7a415fe7cef698e54c6ae945Paul Dagnelie rrwlock_t ds_bp_rwlock; /* Protects ds_phys->ds_bp */
bc9014e6a81272073b9854d9f65dd59e18d18c35Justin Gibbs
fa9e4066f08beec538e775443c5be79dd423fcabahrens /* Immutable: */
fa9e4066f08beec538e775443c5be79dd423fcabahrens struct dsl_dir *ds_dir;
fa9e4066f08beec538e775443c5be79dd423fcabahrens dmu_buf_t *ds_dbuf;
fa9e4066f08beec538e775443c5be79dd423fcabahrens uint64_t ds_object;
91ebeef555ce7f899b6270a3c2df47b51f7ad59aahrens uint64_t ds_fsid_guid;
bc9014e6a81272073b9854d9f65dd59e18d18c35Justin Gibbs boolean_t ds_is_snapshot;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
74e7dc986c89efca1f2e4451c7a572e05e4a6e4fMatthew Ahrens /* only used in syncing context, only valid for non-snapshots: */
74e7dc986c89efca1f2e4451c7a572e05e4a6e4fMatthew Ahrens struct dsl_dataset *ds_prev;
78f171005391b928aaf1642b3206c534ed644332Matthew Ahrens uint64_t ds_bookmarks; /* DMU_OTN_ZAP_METADATA */
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /* has internal locking: */
cde58dbc6a23d4d38db7c8866312be83221c765fMatthew Ahrens dsl_deadlist_t ds_deadlist;
cde58dbc6a23d4d38db7c8866312be83221c765fMatthew Ahrens bplist_t ds_pending_deadlist;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /* protected by lock on pool's dp_dirty_datasets list */
fa9e4066f08beec538e775443c5be79dd423fcabahrens txg_node_t ds_dirty_link;
fa9e4066f08beec538e775443c5be79dd423fcabahrens list_node_t ds_synced_link;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * ds_phys->ds_<accounting> is also protected by ds_lock.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Protected by ds_lock:
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens kmutex_t ds_lock;
503ad85c168c7992ccc310af845a581cff3c72b5Matthew Ahrens objset_t *ds_objset;
842727c2f41f01b380de4f5e787d905702870f23Chris Kirby uint64_t ds_userrefs;
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens void *ds_owner;
745cd3c5371d020efae7a911c58c526aa1fd0dbamaybee
745cd3c5371d020efae7a911c58c526aa1fd0dbamaybee /*
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens * Long holds prevent the ds from being destroyed; they allow the
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens * ds to remain held even after dropping the dp_config_rwlock.
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens * Owning counts as a long hold. See the comments above
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens * dsl_pool_hold() for details.
745cd3c5371d020efae7a911c58c526aa1fd0dbamaybee */
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens refcount_t ds_longholds;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
1d452cf5123cb6ac0a013a4dbd4dcceeb0da314dahrens /* no locking; only for making guesses */
1d452cf5123cb6ac0a013a4dbd4dcceeb0da314dahrens uint64_t ds_trysnap_txg;
1d452cf5123cb6ac0a013a4dbd4dcceeb0da314dahrens
91ebeef555ce7f899b6270a3c2df47b51f7ad59aahrens /* for objset_open() */
91ebeef555ce7f899b6270a3c2df47b51f7ad59aahrens kmutex_t ds_opening_lock;
91ebeef555ce7f899b6270a3c2df47b51f7ad59aahrens
a9799022bd90b13722204e80112efaa5bf573099ck uint64_t ds_reserved; /* cached refreservation */
a9799022bd90b13722204e80112efaa5bf573099ck uint64_t ds_quota; /* cached refquota */
a9799022bd90b13722204e80112efaa5bf573099ck
4e3c9f4489a18514e5e8caeb91d4e6db07c98415Bill Pijewski kmutex_t ds_sendstream_lock;
4e3c9f4489a18514e5e8caeb91d4e6db07c98415Bill Pijewski list_t ds_sendstreams;
4e3c9f4489a18514e5e8caeb91d4e6db07c98415Bill Pijewski
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrens /*
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrens * When in the middle of a resumable receive, tracks how much
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrens * progress we have made.
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrens */
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrens uint64_t ds_resume_object[TXG_SIZE];
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrens uint64_t ds_resume_offset[TXG_SIZE];
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrens uint64_t ds_resume_bytes[TXG_SIZE];
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrens
03bad06fbb261fd4a7151a70dfeff2f5041cce1fJustin Gibbs /* Protected by our dsl_dir's dd_lock */
03bad06fbb261fd4a7151a70dfeff2f5041cce1fJustin Gibbs list_t ds_prop_cbs;
03bad06fbb261fd4a7151a70dfeff2f5041cce1fJustin Gibbs
ca0cc3918a1789fa839194af2a9245f801a06b1aMatthew Ahrens /*
ca0cc3918a1789fa839194af2a9245f801a06b1aMatthew Ahrens * For ZFEATURE_FLAG_PER_DATASET features, set if this dataset
ca0cc3918a1789fa839194af2a9245f801a06b1aMatthew Ahrens * uses this feature.
ca0cc3918a1789fa839194af2a9245f801a06b1aMatthew Ahrens */
ca0cc3918a1789fa839194af2a9245f801a06b1aMatthew Ahrens uint8_t ds_feature_inuse[SPA_FEATURES];
ca0cc3918a1789fa839194af2a9245f801a06b1aMatthew Ahrens
ca0cc3918a1789fa839194af2a9245f801a06b1aMatthew Ahrens /*
ca0cc3918a1789fa839194af2a9245f801a06b1aMatthew Ahrens * Set if we need to activate the feature on this dataset this txg
ca0cc3918a1789fa839194af2a9245f801a06b1aMatthew Ahrens * (used only in syncing context).
ca0cc3918a1789fa839194af2a9245f801a06b1aMatthew Ahrens */
ca0cc3918a1789fa839194af2a9245f801a06b1aMatthew Ahrens uint8_t ds_feature_activation_needed[SPA_FEATURES];
ca0cc3918a1789fa839194af2a9245f801a06b1aMatthew Ahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens /* Protected by ds_lock; keep at end of struct for better locality */
9adfa60d484ce2435f5af77cc99dcd4e692b6660Matthew Ahrens char ds_snapname[ZFS_MAX_DATASET_NAME_LEN];
fa9e4066f08beec538e775443c5be79dd423fcabahrens} dsl_dataset_t;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
c1379625401dfbe1c39b79136dd384a571d47fdeJustin T. Gibbsinline dsl_dataset_phys_t *
c1379625401dfbe1c39b79136dd384a571d47fdeJustin T. Gibbsdsl_dataset_phys(dsl_dataset_t *ds)
c1379625401dfbe1c39b79136dd384a571d47fdeJustin T. Gibbs{
c1379625401dfbe1c39b79136dd384a571d47fdeJustin T. Gibbs return (ds->ds_dbuf->db_data);
c1379625401dfbe1c39b79136dd384a571d47fdeJustin T. Gibbs}
c1379625401dfbe1c39b79136dd384a571d47fdeJustin T. Gibbs
99d5e173470cf967aa87653364ed614299e7b511Tim Haley/*
99d5e173470cf967aa87653364ed614299e7b511Tim Haley * The max length of a temporary tag prefix is the number of hex digits
99d5e173470cf967aa87653364ed614299e7b511Tim Haley * required to express UINT64_MAX plus one for the hyphen.
99d5e173470cf967aa87653364ed614299e7b511Tim Haley */
99d5e173470cf967aa87653364ed614299e7b511Tim Haley#define MAX_TAG_PREFIX_LEN 17
99d5e173470cf967aa87653364ed614299e7b511Tim Haley
643da460c8ca583e39ce053081754e24087f84c8Max Grossman#define dsl_dataset_is_snapshot(ds) \
643da460c8ca583e39ce053081754e24087f84c8Max Grossman (dsl_dataset_phys(ds)->ds_num_children != 0)
643da460c8ca583e39ce053081754e24087f84c8Max Grossman
a9799022bd90b13722204e80112efaa5bf573099ck#define DS_UNIQUE_IS_ACCURATE(ds) \
c1379625401dfbe1c39b79136dd384a571d47fdeJustin T. Gibbs ((dsl_dataset_phys(ds)->ds_flags & DS_FLAG_UNIQUE_ACCURATE) != 0)
a9799022bd90b13722204e80112efaa5bf573099ck
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensint dsl_dataset_hold(struct dsl_pool *dp, const char *name, void *tag,
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens dsl_dataset_t **dsp);
e57a022b8f718889ffa92adbde47a8f08abcdb25Justin T. Gibbsboolean_t dsl_dataset_try_add_ref(struct dsl_pool *dp, dsl_dataset_t *ds,
e57a022b8f718889ffa92adbde47a8f08abcdb25Justin T. Gibbs void *tag);
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensint dsl_dataset_hold_obj(struct dsl_pool *dp, uint64_t dsobj, void *tag,
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens dsl_dataset_t **);
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensvoid dsl_dataset_rele(dsl_dataset_t *ds, void *tag);
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensint dsl_dataset_own(struct dsl_pool *dp, const char *name,
503ad85c168c7992ccc310af845a581cff3c72b5Matthew Ahrens void *tag, dsl_dataset_t **dsp);
745cd3c5371d020efae7a911c58c526aa1fd0dbamaybeeint dsl_dataset_own_obj(struct dsl_pool *dp, uint64_t dsobj,
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens void *tag, dsl_dataset_t **dsp);
503ad85c168c7992ccc310af845a581cff3c72b5Matthew Ahrensvoid dsl_dataset_disown(dsl_dataset_t *ds, void *tag);
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensvoid dsl_dataset_name(dsl_dataset_t *ds, char *name);
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensboolean_t dsl_dataset_tryown(dsl_dataset_t *ds, void *tag);
9adfa60d484ce2435f5af77cc99dcd4e692b6660Matthew Ahrensint dsl_dataset_namelen(dsl_dataset_t *ds);
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrensboolean_t dsl_dataset_has_owner(dsl_dataset_t *ds);
745cd3c5371d020efae7a911c58c526aa1fd0dbamaybeeuint64_t dsl_dataset_create_sync(dsl_dir_t *pds, const char *lastname,
745cd3c5371d020efae7a911c58c526aa1fd0dbamaybee dsl_dataset_t *origin, uint64_t flags, cred_t *, dmu_tx_t *);
088f389458728c464569a5506b58070254fa4f7dahrensuint64_t dsl_dataset_create_sync_dd(dsl_dir_t *dd, dsl_dataset_t *origin,
088f389458728c464569a5506b58070254fa4f7dahrens uint64_t flags, dmu_tx_t *tx);
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensint dsl_dataset_snapshot(nvlist_t *snaps, nvlist_t *props, nvlist_t *errors);
681d9761e8516a7dc5ab6589e2dfe717777e1123Eric Taylorint dsl_dataset_promote(const char *name, char *conflsnap);
3cb34c601f3ef3016f638574f5982e80c3735c71ahrensint dsl_dataset_clone_swap(dsl_dataset_t *clone, dsl_dataset_t *origin_head,
3cb34c601f3ef3016f638574f5982e80c3735c71ahrens boolean_t force);
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensint dsl_dataset_rename_snapshot(const char *fsname,
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens const char *oldsnapname, const char *newsnapname, boolean_t recursive);
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensint dsl_dataset_snapshot_tmp(const char *fsname, const char *snapname,
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens minor_t cleanup_minor, const char *htag);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
c717a56157ae0e6fca6a1e3689ae1edc385716a3maybeeblkptr_t *dsl_dataset_get_blkptr(dsl_dataset_t *ds);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensspa_t *dsl_dataset_get_spa(dsl_dataset_t *ds);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
34f2f8cf94052481c81be2e134b94a00b501bf21Matthew Ahrensboolean_t dsl_dataset_modified_since_snap(dsl_dataset_t *ds,
34f2f8cf94052481c81be2e134b94a00b501bf21Matthew Ahrens dsl_dataset_t *snap);
f18faf3f3e5def85fdfff681617d227703ace2adek
c717a56157ae0e6fca6a1e3689ae1edc385716a3maybeevoid dsl_dataset_sync(dsl_dataset_t *os, zio_t *zio, dmu_tx_t *tx);
bfaed0b91e57062c38bc16b4f89db3c8f0052a9bAndriy Gaponvoid dsl_dataset_sync_done(dsl_dataset_t *os, dmu_tx_t *tx);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickvoid dsl_dataset_block_born(dsl_dataset_t *ds, const blkptr_t *bp,
c717a56157ae0e6fca6a1e3689ae1edc385716a3maybee dmu_tx_t *tx);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickint dsl_dataset_block_kill(dsl_dataset_t *ds, const blkptr_t *bp,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_tx_t *tx, boolean_t async);
c7cd242109c82107ec2e50013369e92be9d77702George Wilsonboolean_t dsl_dataset_block_freeable(dsl_dataset_t *ds, const blkptr_t *bp,
c7cd242109c82107ec2e50013369e92be9d77702George Wilson uint64_t blk_birth);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrockuint64_t dsl_dataset_prev_snap_txg(dsl_dataset_t *ds);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid dsl_dataset_dirty(dsl_dataset_t *ds, dmu_tx_t *tx);
a2eea2e101e6a163a537dcc6d4e3c4da2a0ea5b2ahrensvoid dsl_dataset_stats(dsl_dataset_t *os, nvlist_t *nv);
a2eea2e101e6a163a537dcc6d4e3c4da2a0ea5b2ahrensvoid dsl_dataset_fast_stat(dsl_dataset_t *ds, dmu_objset_stats_t *stat);
a2eea2e101e6a163a537dcc6d4e3c4da2a0ea5b2ahrensvoid dsl_dataset_space(dsl_dataset_t *ds,
a2eea2e101e6a163a537dcc6d4e3c4da2a0ea5b2ahrens uint64_t *refdbytesp, uint64_t *availbytesp,
a2eea2e101e6a163a537dcc6d4e3c4da2a0ea5b2ahrens uint64_t *usedobjsp, uint64_t *availobjsp);
a2eea2e101e6a163a537dcc6d4e3c4da2a0ea5b2ahrensuint64_t dsl_dataset_fsid_guid(dsl_dataset_t *ds);
19b94df933188a15d4f0d6c568f0bab3f127892eMatthew Ahrensint dsl_dataset_space_written(dsl_dataset_t *oldsnap, dsl_dataset_t *new,
19b94df933188a15d4f0d6c568f0bab3f127892eMatthew Ahrens uint64_t *usedp, uint64_t *compp, uint64_t *uncompp);
19b94df933188a15d4f0d6c568f0bab3f127892eMatthew Ahrensint dsl_dataset_space_wouldfree(dsl_dataset_t *firstsnap, dsl_dataset_t *last,
19b94df933188a15d4f0d6c568f0bab3f127892eMatthew Ahrens uint64_t *usedp, uint64_t *compp, uint64_t *uncompp);
2e2c135528b3edfe9aaf67d1f004dc0202fa1a54Matthew Ahrensboolean_t dsl_dataset_is_dirty(dsl_dataset_t *ds);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
b1b8ab34de515a5e83206da22c3d7e563241b021llingint dsl_dsobj_to_dsname(char *pname, uint64_t obj, char *buf);
b1b8ab34de515a5e83206da22c3d7e563241b021lling
a9799022bd90b13722204e80112efaa5bf573099ckint dsl_dataset_check_quota(dsl_dataset_t *ds, boolean_t check_quota,
9082849ec1ce8be7d4eff196c8f4a3a9f75dc65dck uint64_t asize, uint64_t inflight, uint64_t *used,
9082849ec1ce8be7d4eff196c8f4a3a9f75dc65dck uint64_t *ref_rsrv);
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensint dsl_dataset_set_refquota(const char *dsname, zprop_source_t source,
92241e0b80813d0b83c08e730a29b9d1831794fcTom Erickson uint64_t quota);
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensint dsl_dataset_set_refreservation(const char *dsname, zprop_source_t source,
92241e0b80813d0b83c08e730a29b9d1831794fcTom Erickson uint64_t reservation);
a9799022bd90b13722204e80112efaa5bf573099ck
78f171005391b928aaf1642b3206c534ed644332Matthew Ahrensboolean_t dsl_dataset_is_before(dsl_dataset_t *later, dsl_dataset_t *earlier,
78f171005391b928aaf1642b3206c534ed644332Matthew Ahrens uint64_t earlier_txg);
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensvoid dsl_dataset_long_hold(dsl_dataset_t *ds, void *tag);
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensvoid dsl_dataset_long_rele(dsl_dataset_t *ds, void *tag);
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensboolean_t dsl_dataset_long_held(dsl_dataset_t *ds);
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensint dsl_dataset_clone_swap_check_impl(dsl_dataset_t *clone,
91948b51b8e978ddc88a36b2bc3ae83c20cdc9aaKeith M Wesolowski dsl_dataset_t *origin_head, boolean_t force, void *owner, dmu_tx_t *tx);
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensvoid dsl_dataset_clone_swap_sync_impl(dsl_dataset_t *clone,
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens dsl_dataset_t *origin_head, dmu_tx_t *tx);
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensint dsl_dataset_snapshot_check_impl(dsl_dataset_t *ds, const char *snapname,
a2afb611b30628fb74ad9eade4ae465f9031e262Jerry Jelinek dmu_tx_t *tx, boolean_t recv, uint64_t cnt, cred_t *cr);
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensvoid dsl_dataset_snapshot_sync_impl(dsl_dataset_t *ds, const char *snapname,
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens dmu_tx_t *tx);
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensvoid dsl_dataset_remove_from_next_clones(dsl_dataset_t *ds, uint64_t obj,
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens dmu_tx_t *tx);
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensvoid dsl_dataset_recalc_head_uniq(dsl_dataset_t *ds);
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensint dsl_dataset_get_snapname(dsl_dataset_t *ds);
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensint dsl_dataset_snap_lookup(dsl_dataset_t *ds, const char *name,
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens uint64_t *value);
a2afb611b30628fb74ad9eade4ae465f9031e262Jerry Jelinekint dsl_dataset_snap_remove(dsl_dataset_t *ds, const char *name, dmu_tx_t *tx,
a2afb611b30628fb74ad9eade4ae465f9031e262Jerry Jelinek boolean_t adj_cnt);
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensvoid dsl_dataset_set_refreservation_sync_impl(dsl_dataset_t *ds,
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens zprop_source_t source, uint64_t value, dmu_tx_t *tx);
78f171005391b928aaf1642b3206c534ed644332Matthew Ahrensvoid dsl_dataset_zapify(dsl_dataset_t *ds, dmu_tx_t *tx);
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrensboolean_t dsl_dataset_is_zapified(dsl_dataset_t *ds);
9c3fd1216fa7fb02cfbc78a2518a686d54b48ab8Matthew Ahrensboolean_t dsl_dataset_has_resume_receive_state(dsl_dataset_t *ds);
a7027df17fad220a20367b9d1eb251bc6300d203Matthew Ahrensint dsl_dataset_rollback(const char *fsname, void *owner, nvlist_t *result);
503ad85c168c7992ccc310af845a581cff3c72b5Matthew Ahrens
ca0cc3918a1789fa839194af2a9245f801a06b1aMatthew Ahrensvoid dsl_dataset_deactivate_feature(uint64_t dsobj,
ca0cc3918a1789fa839194af2a9245f801a06b1aMatthew Ahrens spa_feature_t f, dmu_tx_t *tx);
ca0cc3918a1789fa839194af2a9245f801a06b1aMatthew Ahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#ifdef ZFS_DEBUG
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define dprintf_ds(ds, fmt, ...) do { \
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (zfs_flags & ZFS_DEBUG_DPRINTF) { \
9adfa60d484ce2435f5af77cc99dcd4e692b6660Matthew Ahrens char *__ds_name = kmem_alloc(ZFS_MAX_DATASET_NAME_LEN, KM_SLEEP); \
fa9e4066f08beec538e775443c5be79dd423fcabahrens dsl_dataset_name(ds, __ds_name); \
fa9e4066f08beec538e775443c5be79dd423fcabahrens dprintf("ds=%s " fmt, __ds_name, __VA_ARGS__); \
9adfa60d484ce2435f5af77cc99dcd4e692b6660Matthew Ahrens kmem_free(__ds_name, ZFS_MAX_DATASET_NAME_LEN); \
fa9e4066f08beec538e775443c5be79dd423fcabahrens } \
fa9e4066f08beec538e775443c5be79dd423fcabahrens_NOTE(CONSTCOND) } while (0)
fa9e4066f08beec538e775443c5be79dd423fcabahrens#else
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define dprintf_ds(dd, fmt, ...)
fa9e4066f08beec538e775443c5be79dd423fcabahrens#endif
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#ifdef __cplusplus
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens#endif
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#endif /* _SYS_DSL_DATASET_H */