Print this page
3742 zfs comments need cleaner, more consistent style
Submitted by: Will Andrews <willa@spectralogic.com>
Submitted by: Alan Somers <alans@spectralogic.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Eric Schrock <eric.schrock@delphix.com>
| Split |
Close |
| Expand all |
| Collapse all |
--- old/usr/src/uts/common/fs/zfs/sys/dsl_pool.h
+++ new/usr/src/uts/common/fs/zfs/sys/dsl_pool.h
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21 /*
22 22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 23 * Copyright (c) 2012 by Delphix. All rights reserved.
24 24 */
25 25
26 26 #ifndef _SYS_DSL_POOL_H
27 27 #define _SYS_DSL_POOL_H
28 28
29 29 #include <sys/spa.h>
30 30 #include <sys/txg.h>
31 31 #include <sys/txg_impl.h>
32 32 #include <sys/zfs_context.h>
33 33 #include <sys/zio.h>
34 34 #include <sys/dnode.h>
35 35 #include <sys/ddt.h>
36 36 #include <sys/arc.h>
37 37 #include <sys/bpobj.h>
38 38 #include <sys/bptree.h>
39 39 #include <sys/rrwlock.h>
40 40
41 41 #ifdef __cplusplus
42 42 extern "C" {
43 43 #endif
44 44
45 45 struct objset;
46 46 struct dsl_dir;
47 47 struct dsl_dataset;
48 48 struct dsl_pool;
49 49 struct dmu_tx;
50 50 struct dsl_scan;
51 51
52 52 /* These macros are for indexing into the zfs_all_blkstats_t. */
53 53 #define DMU_OT_DEFERRED DMU_OT_NONE
54 54 #define DMU_OT_OTHER DMU_OT_NUMTYPES /* place holder for DMU_OT() types */
55 55 #define DMU_OT_TOTAL (DMU_OT_NUMTYPES + 1)
56 56
57 57 typedef struct zfs_blkstat {
58 58 uint64_t zb_count;
59 59 uint64_t zb_asize;
60 60 uint64_t zb_lsize;
61 61 uint64_t zb_psize;
62 62 uint64_t zb_gangs;
63 63 uint64_t zb_ditto_2_of_2_samevdev;
64 64 uint64_t zb_ditto_2_of_3_samevdev;
65 65 uint64_t zb_ditto_3_of_3_samevdev;
66 66 } zfs_blkstat_t;
67 67
68 68 typedef struct zfs_all_blkstats {
69 69 zfs_blkstat_t zab_type[DN_MAX_LEVELS + 1][DMU_OT_TOTAL + 1];
70 70 } zfs_all_blkstats_t;
71 71
72 72
73 73 typedef struct dsl_pool {
74 74 /* Immutable */
75 75 spa_t *dp_spa;
76 76 struct objset *dp_meta_objset;
77 77 struct dsl_dir *dp_root_dir;
78 78 struct dsl_dir *dp_mos_dir;
79 79 struct dsl_dir *dp_free_dir;
80 80 struct dsl_dataset *dp_origin_snap;
81 81 uint64_t dp_root_dir_obj;
82 82 struct taskq *dp_vnrele_taskq;
83 83
84 84 /* No lock needed - sync context only */
85 85 blkptr_t dp_meta_rootbp;
86 86 hrtime_t dp_read_overhead;
87 87 uint64_t dp_throughput; /* bytes per millisec */
88 88 uint64_t dp_write_limit;
89 89 uint64_t dp_tmp_userrefs_obj;
90 90 bpobj_t dp_free_bpobj;
91 91 uint64_t dp_bptree_obj;
92 92 uint64_t dp_empty_bpobj;
93 93
94 94 struct dsl_scan *dp_scan;
95 95
96 96 /* Uses dp_lock */
97 97 kmutex_t dp_lock;
98 98 uint64_t dp_space_towrite[TXG_SIZE];
99 99 uint64_t dp_tempreserved[TXG_SIZE];
100 100 uint64_t dp_mos_used_delta;
101 101 uint64_t dp_mos_compressed_delta;
102 102 uint64_t dp_mos_uncompressed_delta;
|
↓ open down ↓ |
102 lines elided |
↑ open up ↑ |
103 103
104 104 /* Has its own locking */
105 105 tx_state_t dp_tx;
106 106 txg_list_t dp_dirty_datasets;
107 107 txg_list_t dp_dirty_zilogs;
108 108 txg_list_t dp_dirty_dirs;
109 109 txg_list_t dp_sync_tasks;
110 110
111 111 /*
112 112 * Protects administrative changes (properties, namespace)
113 + *
113 114 * It is only held for write in syncing context. Therefore
114 115 * syncing context does not need to ever have it for read, since
115 116 * nobody else could possibly have it for write.
116 117 */
117 118 rrwlock_t dp_config_rwlock;
118 119
119 120 zfs_all_blkstats_t *dp_blkstats;
120 121 } dsl_pool_t;
121 122
122 123 int dsl_pool_init(spa_t *spa, uint64_t txg, dsl_pool_t **dpp);
123 124 int dsl_pool_open(dsl_pool_t *dp);
124 125 void dsl_pool_close(dsl_pool_t *dp);
125 126 dsl_pool_t *dsl_pool_create(spa_t *spa, nvlist_t *zplprops, uint64_t txg);
126 127 void dsl_pool_sync(dsl_pool_t *dp, uint64_t txg);
127 128 void dsl_pool_sync_done(dsl_pool_t *dp, uint64_t txg);
128 129 int dsl_pool_sync_context(dsl_pool_t *dp);
129 130 uint64_t dsl_pool_adjustedsize(dsl_pool_t *dp, boolean_t netfree);
130 131 uint64_t dsl_pool_adjustedfree(dsl_pool_t *dp, boolean_t netfree);
131 132 int dsl_pool_tempreserve_space(dsl_pool_t *dp, uint64_t space, dmu_tx_t *tx);
132 133 void dsl_pool_tempreserve_clear(dsl_pool_t *dp, int64_t space, dmu_tx_t *tx);
133 134 void dsl_pool_memory_pressure(dsl_pool_t *dp);
134 135 void dsl_pool_willuse_space(dsl_pool_t *dp, int64_t space, dmu_tx_t *tx);
135 136 void dsl_free(dsl_pool_t *dp, uint64_t txg, const blkptr_t *bpp);
136 137 void dsl_free_sync(zio_t *pio, dsl_pool_t *dp, uint64_t txg,
137 138 const blkptr_t *bpp);
138 139 void dsl_pool_create_origin(dsl_pool_t *dp, dmu_tx_t *tx);
139 140 void dsl_pool_upgrade_clones(dsl_pool_t *dp, dmu_tx_t *tx);
140 141 void dsl_pool_upgrade_dir_clones(dsl_pool_t *dp, dmu_tx_t *tx);
141 142 void dsl_pool_mos_diduse_space(dsl_pool_t *dp,
142 143 int64_t used, int64_t comp, int64_t uncomp);
143 144 void dsl_pool_config_enter(dsl_pool_t *dp, void *tag);
144 145 void dsl_pool_config_exit(dsl_pool_t *dp, void *tag);
145 146 boolean_t dsl_pool_config_held(dsl_pool_t *dp);
146 147
147 148 taskq_t *dsl_pool_vnrele_taskq(dsl_pool_t *dp);
148 149
149 150 int dsl_pool_user_hold(dsl_pool_t *dp, uint64_t dsobj,
150 151 const char *tag, uint64_t now, dmu_tx_t *tx);
151 152 int dsl_pool_user_release(dsl_pool_t *dp, uint64_t dsobj,
152 153 const char *tag, dmu_tx_t *tx);
153 154 void dsl_pool_clean_tmp_userrefs(dsl_pool_t *dp);
154 155 int dsl_pool_open_special_dir(dsl_pool_t *dp, const char *name, dsl_dir_t **);
155 156 int dsl_pool_hold(const char *name, void *tag, dsl_pool_t **dp);
156 157 void dsl_pool_rele(dsl_pool_t *dp, void *tag);
157 158
158 159 #ifdef __cplusplus
159 160 }
160 161 #endif
161 162
162 163 #endif /* _SYS_DSL_POOL_H */
|
↓ open down ↓ |
40 lines elided |
↑ open up ↑ |
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX