4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright (c) 2013, 2017 by Delphix. All rights reserved.
24 * Copyright 2016 Nexenta Systems, Inc. All rights reserved.
27 #ifndef _SYS_DSL_POOL_H
28 #define _SYS_DSL_POOL_H
32 #include <sys/txg_impl.h>
33 #include <sys/zfs_context.h>
35 #include <sys/dnode.h>
38 #include <sys/bpobj.h>
39 #include <sys/bptree.h>
40 #include <sys/rrwlock.h>
41 #include <sys/dsl_synctask.h>
54 extern uint64_t zfs_dirty_data_max
;
55 extern uint64_t zfs_dirty_data_max_max
;
56 extern uint64_t zfs_dirty_data_sync
;
57 extern int zfs_dirty_data_max_percent
;
58 extern int zfs_delay_min_dirty_percent
;
59 extern uint64_t zfs_delay_scale
;
61 /* These macros are for indexing into the zfs_all_blkstats_t. */
62 #define DMU_OT_DEFERRED DMU_OT_NONE
63 #define DMU_OT_OTHER DMU_OT_NUMTYPES /* place holder for DMU_OT() types */
64 #define DMU_OT_TOTAL (DMU_OT_NUMTYPES + 1)
66 typedef struct zfs_blkstat
{
72 uint64_t zb_ditto_2_of_2_samevdev
;
73 uint64_t zb_ditto_2_of_3_samevdev
;
74 uint64_t zb_ditto_3_of_3_samevdev
;
77 typedef struct zfs_all_blkstats
{
78 zfs_blkstat_t zab_type
[DN_MAX_LEVELS
+ 1][DMU_OT_TOTAL
+ 1];
82 typedef struct dsl_pool
{
85 struct objset
*dp_meta_objset
;
86 struct dsl_dir
*dp_root_dir
;
87 struct dsl_dir
*dp_mos_dir
;
88 struct dsl_dir
*dp_free_dir
;
89 struct dsl_dir
*dp_leak_dir
;
90 struct dsl_dataset
*dp_origin_snap
;
91 uint64_t dp_root_dir_obj
;
92 taskq_t
*dp_vnrele_taskq
;
94 /* No lock needed - sync context only */
95 blkptr_t dp_meta_rootbp
;
96 uint64_t dp_tmp_userrefs_obj
;
97 bpobj_t dp_free_bpobj
;
98 uint64_t dp_bptree_obj
;
99 uint64_t dp_empty_bpobj
;
100 bpobj_t dp_obsolete_bpobj
;
102 struct dsl_scan
*dp_scan
;
106 kcondvar_t dp_spaceavail_cv
;
107 uint64_t dp_dirty_pertxg
[TXG_SIZE
];
108 uint64_t dp_dirty_total
;
109 uint64_t dp_long_free_dirty_pertxg
[TXG_SIZE
];
110 uint64_t dp_mos_used_delta
;
111 uint64_t dp_mos_compressed_delta
;
112 uint64_t dp_mos_uncompressed_delta
;
115 * Time of most recently scheduled (furthest in the future)
116 * wakeup for delayed transactions.
118 hrtime_t dp_last_wakeup
;
120 /* Has its own locking */
122 txg_list_t dp_dirty_datasets
;
123 txg_list_t dp_dirty_zilogs
;
124 txg_list_t dp_dirty_dirs
;
125 txg_list_t dp_sync_tasks
;
126 txg_list_t dp_early_sync_tasks
;
127 taskq_t
*dp_sync_taskq
;
128 taskq_t
*dp_zil_clean_taskq
;
131 * Protects administrative changes (properties, namespace)
133 * It is only held for write in syncing context. Therefore
134 * syncing context does not need to ever have it for read, since
135 * nobody else could possibly have it for write.
137 rrwlock_t dp_config_rwlock
;
139 zfs_all_blkstats_t
*dp_blkstats
;
142 int dsl_pool_init(spa_t
*spa
, uint64_t txg
, dsl_pool_t
**dpp
);
143 int dsl_pool_open(dsl_pool_t
*dp
);
144 void dsl_pool_close(dsl_pool_t
*dp
);
145 dsl_pool_t
*dsl_pool_create(spa_t
*spa
, nvlist_t
*zplprops
, uint64_t txg
);
146 void dsl_pool_sync(dsl_pool_t
*dp
, uint64_t txg
);
147 void dsl_pool_sync_done(dsl_pool_t
*dp
, uint64_t txg
);
148 int dsl_pool_sync_context(dsl_pool_t
*dp
);
149 uint64_t dsl_pool_adjustedsize(dsl_pool_t
*dp
, zfs_space_check_t slop_policy
);
150 uint64_t dsl_pool_unreserved_space(dsl_pool_t
*dp
,
151 zfs_space_check_t slop_policy
);
152 void dsl_pool_dirty_space(dsl_pool_t
*dp
, int64_t space
, dmu_tx_t
*tx
);
153 void dsl_pool_undirty_space(dsl_pool_t
*dp
, int64_t space
, uint64_t txg
);
154 void dsl_free(dsl_pool_t
*dp
, uint64_t txg
, const blkptr_t
*bpp
);
155 void dsl_free_sync(zio_t
*pio
, dsl_pool_t
*dp
, uint64_t txg
,
156 const blkptr_t
*bpp
);
157 void dsl_pool_create_origin(dsl_pool_t
*dp
, dmu_tx_t
*tx
);
158 void dsl_pool_upgrade_clones(dsl_pool_t
*dp
, dmu_tx_t
*tx
);
159 void dsl_pool_upgrade_dir_clones(dsl_pool_t
*dp
, dmu_tx_t
*tx
);
160 void dsl_pool_mos_diduse_space(dsl_pool_t
*dp
,
161 int64_t used
, int64_t comp
, int64_t uncomp
);
162 void dsl_pool_ckpoint_diduse_space(dsl_pool_t
*dp
,
163 int64_t used
, int64_t comp
, int64_t uncomp
);
164 void dsl_pool_config_enter(dsl_pool_t
*dp
, void *tag
);
165 void dsl_pool_config_enter_prio(dsl_pool_t
*dp
, void *tag
);
166 void dsl_pool_config_exit(dsl_pool_t
*dp
, void *tag
);
167 boolean_t
dsl_pool_config_held(dsl_pool_t
*dp
);
168 boolean_t
dsl_pool_config_held_writer(dsl_pool_t
*dp
);
169 boolean_t
dsl_pool_need_dirty_delay(dsl_pool_t
*dp
);
171 taskq_t
*dsl_pool_vnrele_taskq(dsl_pool_t
*dp
);
173 int dsl_pool_user_hold(dsl_pool_t
*dp
, uint64_t dsobj
,
174 const char *tag
, uint64_t now
, dmu_tx_t
*tx
);
175 int dsl_pool_user_release(dsl_pool_t
*dp
, uint64_t dsobj
,
176 const char *tag
, dmu_tx_t
*tx
);
177 void dsl_pool_clean_tmp_userrefs(dsl_pool_t
*dp
);
178 int dsl_pool_open_special_dir(dsl_pool_t
*dp
, const char *name
, dsl_dir_t
**);
179 int dsl_pool_hold(const char *name
, void *tag
, dsl_pool_t
**dp
);
180 void dsl_pool_rele(dsl_pool_t
*dp
, void *tag
);
182 void dsl_pool_create_obsolete_bpobj(dsl_pool_t
*dp
, dmu_tx_t
*tx
);
183 void dsl_pool_destroy_obsolete_bpobj(dsl_pool_t
*dp
, dmu_tx_t
*tx
);
189 #endif /* _SYS_DSL_POOL_H */