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>
51 /* These macros are for indexing into the zfs_all_blkstats_t. */
52 #define DMU_OT_DEFERRED DMU_OT_NONE
53 #define DMU_OT_OTHER DMU_OT_NUMTYPES /* place holder for DMU_OT() types */
54 #define DMU_OT_TOTAL (DMU_OT_NUMTYPES + 1)
56 typedef struct zfs_blkstat
{
62 uint64_t zb_ditto_2_of_2_samevdev
;
63 uint64_t zb_ditto_2_of_3_samevdev
;
64 uint64_t zb_ditto_3_of_3_samevdev
;
67 typedef struct zfs_all_blkstats
{
68 zfs_blkstat_t zab_type
[DN_MAX_LEVELS
+ 1][DMU_OT_TOTAL
+ 1];
71 typedef struct txg_history
{
79 typedef struct dsl_pool
{
82 struct objset
*dp_meta_objset
;
83 struct dsl_dir
*dp_root_dir
;
84 struct dsl_dir
*dp_mos_dir
;
85 struct dsl_dir
*dp_free_dir
;
86 struct dsl_dataset
*dp_origin_snap
;
87 uint64_t dp_root_dir_obj
;
88 struct taskq
*dp_iput_taskq
;
89 kstat_t
*dp_txg_kstat
;
91 /* No lock needed - sync context only */
92 blkptr_t dp_meta_rootbp
;
93 hrtime_t dp_read_overhead
;
94 uint64_t dp_throughput
; /* bytes per millisec */
95 uint64_t dp_write_limit
;
96 uint64_t dp_tmp_userrefs_obj
;
97 bpobj_t dp_free_bpobj
;
98 uint64_t dp_bptree_obj
;
100 struct dsl_scan
*dp_scan
;
104 uint64_t dp_space_towrite
[TXG_SIZE
];
105 uint64_t dp_tempreserved
[TXG_SIZE
];
106 uint64_t dp_mos_used_delta
;
107 uint64_t dp_mos_compressed_delta
;
108 uint64_t dp_mos_uncompressed_delta
;
109 uint64_t dp_txg_history_size
;
110 list_t dp_txg_history
;
113 /* Has its own locking */
115 txg_list_t dp_dirty_datasets
;
116 txg_list_t dp_dirty_zilogs
;
117 txg_list_t dp_dirty_dirs
;
118 txg_list_t dp_sync_tasks
;
121 * Protects administrative changes (properties, namespace)
122 * It is only held for write in syncing context. Therefore
123 * syncing context does not need to ever have it for read, since
124 * nobody else could possibly have it for write.
126 krwlock_t dp_config_rwlock
;
128 zfs_all_blkstats_t
*dp_blkstats
;
131 int dsl_pool_init(spa_t
*spa
, uint64_t txg
, dsl_pool_t
**dpp
);
132 int dsl_pool_open(dsl_pool_t
*dp
);
133 void dsl_pool_close(dsl_pool_t
*dp
);
134 dsl_pool_t
*dsl_pool_create(spa_t
*spa
, nvlist_t
*zplprops
, uint64_t txg
);
135 void dsl_pool_sync(dsl_pool_t
*dp
, uint64_t txg
);
136 void dsl_pool_sync_done(dsl_pool_t
*dp
, uint64_t txg
);
137 int dsl_pool_sync_context(dsl_pool_t
*dp
);
138 uint64_t dsl_pool_adjustedsize(dsl_pool_t
*dp
, boolean_t netfree
);
139 uint64_t dsl_pool_adjustedfree(dsl_pool_t
*dp
, boolean_t netfree
);
140 int dsl_pool_tempreserve_space(dsl_pool_t
*dp
, uint64_t space
, dmu_tx_t
*tx
);
141 void dsl_pool_tempreserve_clear(dsl_pool_t
*dp
, int64_t space
, dmu_tx_t
*tx
);
142 void dsl_pool_memory_pressure(dsl_pool_t
*dp
);
143 void dsl_pool_willuse_space(dsl_pool_t
*dp
, int64_t space
, dmu_tx_t
*tx
);
144 void dsl_free(dsl_pool_t
*dp
, uint64_t txg
, const blkptr_t
*bpp
);
145 void dsl_free_sync(zio_t
*pio
, dsl_pool_t
*dp
, uint64_t txg
,
146 const blkptr_t
*bpp
);
147 int dsl_read(zio_t
*pio
, spa_t
*spa
, const blkptr_t
*bpp
, arc_buf_t
*pbuf
,
148 arc_done_func_t
*done
, void *private, int priority
, int zio_flags
,
149 uint32_t *arc_flags
, const zbookmark_t
*zb
);
150 int dsl_read_nolock(zio_t
*pio
, spa_t
*spa
, const blkptr_t
*bpp
,
151 arc_done_func_t
*done
, void *private, int priority
, int zio_flags
,
152 uint32_t *arc_flags
, const zbookmark_t
*zb
);
153 void dsl_pool_create_origin(dsl_pool_t
*dp
, dmu_tx_t
*tx
);
154 void dsl_pool_upgrade_clones(dsl_pool_t
*dp
, dmu_tx_t
*tx
);
155 void dsl_pool_upgrade_dir_clones(dsl_pool_t
*dp
, dmu_tx_t
*tx
);
156 void dsl_pool_mos_diduse_space(dsl_pool_t
*dp
,
157 int64_t used
, int64_t comp
, int64_t uncomp
);
159 taskq_t
*dsl_pool_iput_taskq(dsl_pool_t
*dp
);
161 extern int dsl_pool_user_hold(dsl_pool_t
*dp
, uint64_t dsobj
,
162 const char *tag
, uint64_t *now
, dmu_tx_t
*tx
);
163 extern int dsl_pool_user_release(dsl_pool_t
*dp
, uint64_t dsobj
,
164 const char *tag
, dmu_tx_t
*tx
);
165 extern void dsl_pool_clean_tmp_userrefs(dsl_pool_t
*dp
);
166 int dsl_pool_open_special_dir(dsl_pool_t
*dp
, const char *name
, dsl_dir_t
**);
168 txg_history_t
*dsl_pool_txg_history_add(dsl_pool_t
*dp
, uint64_t txg
);
169 txg_history_t
*dsl_pool_txg_history_get(dsl_pool_t
*dp
, uint64_t txg
);
170 void dsl_pool_txg_history_put(txg_history_t
*th
);
176 #endif /* _SYS_DSL_POOL_H */