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) 2012 by Delphix. All rights reserved.
26 #ifndef _SYS_DSL_POOL_H
27 #define _SYS_DSL_POOL_H
31 #include <sys/txg_impl.h>
32 #include <sys/zfs_context.h>
34 #include <sys/dnode.h>
37 #include <sys/bpobj.h>
38 #include <sys/bptree.h>
39 #include <sys/rrwlock.h>
45 extern int zfs_txg_synctime_ms
;
54 /* These macros are for indexing into the zfs_all_blkstats_t. */
55 #define DMU_OT_DEFERRED DMU_OT_NONE
56 #define DMU_OT_OTHER DMU_OT_NUMTYPES /* place holder for DMU_OT() types */
57 #define DMU_OT_TOTAL (DMU_OT_NUMTYPES + 1)
59 typedef struct zfs_blkstat
{
65 uint64_t zb_ditto_2_of_2_samevdev
;
66 uint64_t zb_ditto_2_of_3_samevdev
;
67 uint64_t zb_ditto_3_of_3_samevdev
;
70 typedef struct zfs_all_blkstats
{
71 zfs_blkstat_t zab_type
[DN_MAX_LEVELS
+ 1][DMU_OT_TOTAL
+ 1];
75 typedef struct dsl_pool
{
78 struct objset
*dp_meta_objset
;
79 struct dsl_dir
*dp_root_dir
;
80 struct dsl_dir
*dp_mos_dir
;
81 struct dsl_dir
*dp_free_dir
;
82 struct dsl_dataset
*dp_origin_snap
;
83 uint64_t dp_root_dir_obj
;
84 struct taskq
*dp_iput_taskq
;
86 /* No lock needed - sync context only */
87 blkptr_t dp_meta_rootbp
;
88 hrtime_t dp_read_overhead
;
89 uint64_t dp_throughput
; /* bytes per millisec */
90 uint64_t dp_write_limit
;
91 uint64_t dp_tmp_userrefs_obj
;
92 bpobj_t dp_free_bpobj
;
93 uint64_t dp_bptree_obj
;
94 uint64_t dp_empty_bpobj
;
96 struct dsl_scan
*dp_scan
;
100 uint64_t dp_space_towrite
[TXG_SIZE
];
101 uint64_t dp_tempreserved
[TXG_SIZE
];
102 uint64_t dp_mos_used_delta
;
103 uint64_t dp_mos_compressed_delta
;
104 uint64_t dp_mos_uncompressed_delta
;
106 /* Has its own locking */
108 txg_list_t dp_dirty_datasets
;
109 txg_list_t dp_dirty_zilogs
;
110 txg_list_t dp_dirty_dirs
;
111 txg_list_t dp_sync_tasks
;
114 * Protects administrative changes (properties, namespace)
115 * It is only held for write in syncing context. Therefore
116 * syncing context does not need to ever have it for read, since
117 * nobody else could possibly have it for write.
119 rrwlock_t dp_config_rwlock
;
121 zfs_all_blkstats_t
*dp_blkstats
;
124 int dsl_pool_init(spa_t
*spa
, uint64_t txg
, dsl_pool_t
**dpp
);
125 int dsl_pool_open(dsl_pool_t
*dp
);
126 void dsl_pool_close(dsl_pool_t
*dp
);
127 dsl_pool_t
*dsl_pool_create(spa_t
*spa
, nvlist_t
*zplprops
, uint64_t txg
);
128 void dsl_pool_sync(dsl_pool_t
*dp
, uint64_t txg
);
129 void dsl_pool_sync_done(dsl_pool_t
*dp
, uint64_t txg
);
130 int dsl_pool_sync_context(dsl_pool_t
*dp
);
131 uint64_t dsl_pool_adjustedsize(dsl_pool_t
*dp
, boolean_t netfree
);
132 uint64_t dsl_pool_adjustedfree(dsl_pool_t
*dp
, boolean_t netfree
);
133 int dsl_pool_tempreserve_space(dsl_pool_t
*dp
, uint64_t space
, dmu_tx_t
*tx
);
134 void dsl_pool_tempreserve_clear(dsl_pool_t
*dp
, int64_t space
, dmu_tx_t
*tx
);
135 void dsl_pool_memory_pressure(dsl_pool_t
*dp
);
136 void dsl_pool_willuse_space(dsl_pool_t
*dp
, int64_t space
, dmu_tx_t
*tx
);
137 void dsl_free(dsl_pool_t
*dp
, uint64_t txg
, const blkptr_t
*bpp
);
138 void dsl_free_sync(zio_t
*pio
, dsl_pool_t
*dp
, uint64_t txg
,
139 const blkptr_t
*bpp
);
140 void dsl_pool_create_origin(dsl_pool_t
*dp
, dmu_tx_t
*tx
);
141 void dsl_pool_upgrade_clones(dsl_pool_t
*dp
, dmu_tx_t
*tx
);
142 void dsl_pool_upgrade_dir_clones(dsl_pool_t
*dp
, dmu_tx_t
*tx
);
143 void dsl_pool_mos_diduse_space(dsl_pool_t
*dp
,
144 int64_t used
, int64_t comp
, int64_t uncomp
);
145 void dsl_pool_config_enter(dsl_pool_t
*dp
, void *tag
);
146 void dsl_pool_config_exit(dsl_pool_t
*dp
, void *tag
);
147 boolean_t
dsl_pool_config_held(dsl_pool_t
*dp
);
149 taskq_t
*dsl_pool_iput_taskq(dsl_pool_t
*dp
);
151 int dsl_pool_user_hold(dsl_pool_t
*dp
, uint64_t dsobj
,
152 const char *tag
, uint64_t now
, dmu_tx_t
*tx
);
153 int dsl_pool_user_release(dsl_pool_t
*dp
, uint64_t dsobj
,
154 const char *tag
, dmu_tx_t
*tx
);
155 void dsl_pool_clean_tmp_userrefs(dsl_pool_t
*dp
);
156 int dsl_pool_open_special_dir(dsl_pool_t
*dp
, const char *name
, dsl_dir_t
**);
157 int dsl_pool_hold(const char *name
, void *tag
, dsl_pool_t
**dp
);
158 void dsl_pool_rele(dsl_pool_t
*dp
, void *tag
);
164 #endif /* _SYS_DSL_POOL_H */