1/*
2 * CDDL HEADER START
3 *
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.
7 *
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.
12 *
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]
18 *
19 * CDDL HEADER END
20 */
21/*
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.
25 */
26
27#ifndef _SYS_DSL_POOL_H
28#define _SYS_DSL_POOL_H
29
30#include <sys/spa.h>
31#include <sys/txg.h>
32#include <sys/txg_impl.h>
33#include <sys/zfs_context.h>
34#include <sys/zio.h>
35#include <sys/dnode.h>
36#include <sys/ddt.h>
37#include <sys/arc.h>
38#include <sys/bpobj.h>
39#include <sys/bptree.h>
40#include <sys/rrwlock.h>
41#include <sys/dsl_synctask.h>
42
43#ifdef __cplusplus
44extern "C" {
45#endif
46
47struct objset;
48struct dsl_dir;
49struct dsl_dataset;
50struct dsl_pool;
51struct dmu_tx;
52struct dsl_scan;
53
54extern uint64_t zfs_dirty_data_max;
55extern uint64_t zfs_dirty_data_max_max;
56extern uint64_t zfs_dirty_data_sync;
57extern int zfs_dirty_data_max_percent;
58extern int zfs_delay_min_dirty_percent;
59extern uint64_t zfs_delay_scale;
60
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)
65
66typedef struct zfs_blkstat {
67 uint64_t zb_count;
68 uint64_t zb_asize;
69 uint64_t zb_lsize;
70 uint64_t zb_psize;
71 uint64_t zb_gangs;
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;
75} zfs_blkstat_t;
76
77typedef struct zfs_all_blkstats {
78 zfs_blkstat_t zab_type[DN_MAX_LEVELS + 1][DMU_OT_TOTAL + 1];
| 1/*
2 * CDDL HEADER START
3 *
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.
7 *
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.
12 *
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]
18 *
19 * CDDL HEADER END
20 */
21/*
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.
25 */
26
27#ifndef _SYS_DSL_POOL_H
28#define _SYS_DSL_POOL_H
29
30#include <sys/spa.h>
31#include <sys/txg.h>
32#include <sys/txg_impl.h>
33#include <sys/zfs_context.h>
34#include <sys/zio.h>
35#include <sys/dnode.h>
36#include <sys/ddt.h>
37#include <sys/arc.h>
38#include <sys/bpobj.h>
39#include <sys/bptree.h>
40#include <sys/rrwlock.h>
41#include <sys/dsl_synctask.h>
42
43#ifdef __cplusplus
44extern "C" {
45#endif
46
47struct objset;
48struct dsl_dir;
49struct dsl_dataset;
50struct dsl_pool;
51struct dmu_tx;
52struct dsl_scan;
53
54extern uint64_t zfs_dirty_data_max;
55extern uint64_t zfs_dirty_data_max_max;
56extern uint64_t zfs_dirty_data_sync;
57extern int zfs_dirty_data_max_percent;
58extern int zfs_delay_min_dirty_percent;
59extern uint64_t zfs_delay_scale;
60
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)
65
66typedef struct zfs_blkstat {
67 uint64_t zb_count;
68 uint64_t zb_asize;
69 uint64_t zb_lsize;
70 uint64_t zb_psize;
71 uint64_t zb_gangs;
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;
75} zfs_blkstat_t;
76
77typedef struct zfs_all_blkstats {
78 zfs_blkstat_t zab_type[DN_MAX_LEVELS + 1][DMU_OT_TOTAL + 1];
|
79} zfs_all_blkstats_t;
80
81
82typedef struct dsl_pool {
83 /* Immutable */
84 spa_t *dp_spa;
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 struct taskq *dp_vnrele_taskq;
93
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;
101
102 struct dsl_scan *dp_scan;
103
104 /* Uses dp_lock */
105 kmutex_t dp_lock;
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;
113
114 /*
115 * Time of most recently scheduled (furthest in the future)
116 * wakeup for delayed transactions.
117 */
118 hrtime_t dp_last_wakeup;
119
120 /* Has its own locking */
121 tx_state_t dp_tx;
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;
129
130 /*
131 * Protects administrative changes (properties, namespace)
132 *
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.
136 */
137 rrwlock_t dp_config_rwlock;
138
139 zfs_all_blkstats_t *dp_blkstats;
140} dsl_pool_t;
141
142int dsl_pool_init(spa_t *spa, uint64_t txg, dsl_pool_t **dpp);
143int dsl_pool_open(dsl_pool_t *dp);
144void dsl_pool_close(dsl_pool_t *dp);
145dsl_pool_t *dsl_pool_create(spa_t *spa, nvlist_t *zplprops, uint64_t txg);
146void dsl_pool_sync(dsl_pool_t *dp, uint64_t txg);
147void dsl_pool_sync_done(dsl_pool_t *dp, uint64_t txg);
148int dsl_pool_sync_context(dsl_pool_t *dp);
149uint64_t dsl_pool_adjustedsize(dsl_pool_t *dp, zfs_space_check_t slop_policy);
150uint64_t dsl_pool_unreserved_space(dsl_pool_t *dp,
151 zfs_space_check_t slop_policy);
152void dsl_pool_dirty_space(dsl_pool_t *dp, int64_t space, dmu_tx_t *tx);
153void dsl_pool_undirty_space(dsl_pool_t *dp, int64_t space, uint64_t txg);
154void dsl_free(dsl_pool_t *dp, uint64_t txg, const blkptr_t *bpp);
155void dsl_free_sync(zio_t *pio, dsl_pool_t *dp, uint64_t txg,
156 const blkptr_t *bpp);
157void dsl_pool_create_origin(dsl_pool_t *dp, dmu_tx_t *tx);
158void dsl_pool_upgrade_clones(dsl_pool_t *dp, dmu_tx_t *tx);
159void dsl_pool_upgrade_dir_clones(dsl_pool_t *dp, dmu_tx_t *tx);
160void dsl_pool_mos_diduse_space(dsl_pool_t *dp,
161 int64_t used, int64_t comp, int64_t uncomp);
162void dsl_pool_ckpoint_diduse_space(dsl_pool_t *dp,
163 int64_t used, int64_t comp, int64_t uncomp);
164void dsl_pool_config_enter(dsl_pool_t *dp, void *tag);
165void dsl_pool_config_enter_prio(dsl_pool_t *dp, void *tag);
166void dsl_pool_config_exit(dsl_pool_t *dp, void *tag);
167boolean_t dsl_pool_config_held(dsl_pool_t *dp);
168boolean_t dsl_pool_config_held_writer(dsl_pool_t *dp);
169boolean_t dsl_pool_need_dirty_delay(dsl_pool_t *dp);
170
171taskq_t *dsl_pool_vnrele_taskq(dsl_pool_t *dp);
172
173int dsl_pool_user_hold(dsl_pool_t *dp, uint64_t dsobj,
174 const char *tag, uint64_t now, dmu_tx_t *tx);
175int dsl_pool_user_release(dsl_pool_t *dp, uint64_t dsobj,
176 const char *tag, dmu_tx_t *tx);
177void dsl_pool_clean_tmp_userrefs(dsl_pool_t *dp);
178int dsl_pool_open_special_dir(dsl_pool_t *dp, const char *name, dsl_dir_t **);
179int dsl_pool_hold(const char *name, void *tag, dsl_pool_t **dp);
180void dsl_pool_rele(dsl_pool_t *dp, void *tag);
181
182void dsl_pool_create_obsolete_bpobj(dsl_pool_t *dp, dmu_tx_t *tx);
183void dsl_pool_destroy_obsolete_bpobj(dsl_pool_t *dp, dmu_tx_t *tx);
184
185#ifdef __cplusplus
186}
187#endif
188
189#endif /* _SYS_DSL_POOL_H */
| 80} zfs_all_blkstats_t;
81
82
83typedef struct dsl_pool {
84 /* Immutable */
85 spa_t *dp_spa;
86 struct objset *dp_meta_objset;
87 struct dsl_dir *dp_root_dir;
88 struct dsl_dir *dp_mos_dir;
89 struct dsl_dir *dp_free_dir;
90 struct dsl_dir *dp_leak_dir;
91 struct dsl_dataset *dp_origin_snap;
92 uint64_t dp_root_dir_obj;
93 struct taskq *dp_vnrele_taskq;
94
95 /* No lock needed - sync context only */
96 blkptr_t dp_meta_rootbp;
97 uint64_t dp_tmp_userrefs_obj;
98 bpobj_t dp_free_bpobj;
99 uint64_t dp_bptree_obj;
100 uint64_t dp_empty_bpobj;
101 bpobj_t dp_obsolete_bpobj;
102
103 struct dsl_scan *dp_scan;
104
105 /* Uses dp_lock */
106 kmutex_t dp_lock;
107 kcondvar_t dp_spaceavail_cv;
108 uint64_t dp_dirty_pertxg[TXG_SIZE];
109 uint64_t dp_dirty_total;
110 uint64_t dp_long_free_dirty_pertxg[TXG_SIZE];
111 uint64_t dp_mos_used_delta;
112 uint64_t dp_mos_compressed_delta;
113 uint64_t dp_mos_uncompressed_delta;
114
115 /*
116 * Time of most recently scheduled (furthest in the future)
117 * wakeup for delayed transactions.
118 */
119 hrtime_t dp_last_wakeup;
120
121 /* Has its own locking */
122 tx_state_t dp_tx;
123 txg_list_t dp_dirty_datasets;
124 txg_list_t dp_dirty_zilogs;
125 txg_list_t dp_dirty_dirs;
126 txg_list_t dp_sync_tasks;
127 txg_list_t dp_early_sync_tasks;
128 taskq_t *dp_sync_taskq;
129 taskq_t *dp_zil_clean_taskq;
130
131 /*
132 * Protects administrative changes (properties, namespace)
133 *
134 * It is only held for write in syncing context. Therefore
135 * syncing context does not need to ever have it for read, since
136 * nobody else could possibly have it for write.
137 */
138 rrwlock_t dp_config_rwlock;
139
140 zfs_all_blkstats_t *dp_blkstats;
141} dsl_pool_t;
142
143int dsl_pool_init(spa_t *spa, uint64_t txg, dsl_pool_t **dpp);
144int dsl_pool_open(dsl_pool_t *dp);
145void dsl_pool_close(dsl_pool_t *dp);
146dsl_pool_t *dsl_pool_create(spa_t *spa, nvlist_t *zplprops, uint64_t txg);
147void dsl_pool_sync(dsl_pool_t *dp, uint64_t txg);
148void dsl_pool_sync_done(dsl_pool_t *dp, uint64_t txg);
149int dsl_pool_sync_context(dsl_pool_t *dp);
150uint64_t dsl_pool_adjustedsize(dsl_pool_t *dp, zfs_space_check_t slop_policy);
151uint64_t dsl_pool_unreserved_space(dsl_pool_t *dp,
152 zfs_space_check_t slop_policy);
153void dsl_pool_dirty_space(dsl_pool_t *dp, int64_t space, dmu_tx_t *tx);
154void dsl_pool_undirty_space(dsl_pool_t *dp, int64_t space, uint64_t txg);
155void dsl_free(dsl_pool_t *dp, uint64_t txg, const blkptr_t *bpp);
156void dsl_free_sync(zio_t *pio, dsl_pool_t *dp, uint64_t txg,
157 const blkptr_t *bpp);
158void dsl_pool_create_origin(dsl_pool_t *dp, dmu_tx_t *tx);
159void dsl_pool_upgrade_clones(dsl_pool_t *dp, dmu_tx_t *tx);
160void dsl_pool_upgrade_dir_clones(dsl_pool_t *dp, dmu_tx_t *tx);
161void dsl_pool_mos_diduse_space(dsl_pool_t *dp,
162 int64_t used, int64_t comp, int64_t uncomp);
163void dsl_pool_ckpoint_diduse_space(dsl_pool_t *dp,
164 int64_t used, int64_t comp, int64_t uncomp);
165void dsl_pool_config_enter(dsl_pool_t *dp, void *tag);
166void dsl_pool_config_enter_prio(dsl_pool_t *dp, void *tag);
167void dsl_pool_config_exit(dsl_pool_t *dp, void *tag);
168boolean_t dsl_pool_config_held(dsl_pool_t *dp);
169boolean_t dsl_pool_config_held_writer(dsl_pool_t *dp);
170boolean_t dsl_pool_need_dirty_delay(dsl_pool_t *dp);
171
172taskq_t *dsl_pool_vnrele_taskq(dsl_pool_t *dp);
173
174int dsl_pool_user_hold(dsl_pool_t *dp, uint64_t dsobj,
175 const char *tag, uint64_t now, dmu_tx_t *tx);
176int dsl_pool_user_release(dsl_pool_t *dp, uint64_t dsobj,
177 const char *tag, dmu_tx_t *tx);
178void dsl_pool_clean_tmp_userrefs(dsl_pool_t *dp);
179int dsl_pool_open_special_dir(dsl_pool_t *dp, const char *name, dsl_dir_t **);
180int dsl_pool_hold(const char *name, void *tag, dsl_pool_t **dp);
181void dsl_pool_rele(dsl_pool_t *dp, void *tag);
182
183void dsl_pool_create_obsolete_bpobj(dsl_pool_t *dp, dmu_tx_t *tx);
184void dsl_pool_destroy_obsolete_bpobj(dsl_pool_t *dp, dmu_tx_t *tx);
185
186#ifdef __cplusplus
187}
188#endif
189
190#endif /* _SYS_DSL_POOL_H */
|