]>
Commit | Line | Data |
---|---|---|
34dc7c2f BB |
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 | /* | |
b128c09f | 22 | * Copyright 2008 Sun Microsystems, Inc. All rights reserved. |
34dc7c2f BB |
23 | * Use is subject to license terms. |
24 | */ | |
25 | ||
26 | #ifndef _SYS_SPA_IMPL_H | |
27 | #define _SYS_SPA_IMPL_H | |
28 | ||
34dc7c2f BB |
29 | #include <sys/spa.h> |
30 | #include <sys/vdev.h> | |
31 | #include <sys/metaslab.h> | |
32 | #include <sys/dmu.h> | |
33 | #include <sys/dsl_pool.h> | |
34 | #include <sys/uberblock_impl.h> | |
35 | #include <sys/zfs_context.h> | |
36 | #include <sys/avl.h> | |
37 | #include <sys/refcount.h> | |
38 | #include <sys/bplist.h> | |
39 | ||
40 | #ifdef __cplusplus | |
41 | extern "C" { | |
42 | #endif | |
43 | ||
44 | typedef struct spa_error_entry { | |
45 | zbookmark_t se_bookmark; | |
46 | char *se_name; | |
47 | avl_node_t se_avl; | |
48 | } spa_error_entry_t; | |
49 | ||
50 | typedef struct spa_history_phys { | |
51 | uint64_t sh_pool_create_len; /* ending offset of zpool create */ | |
52 | uint64_t sh_phys_max_off; /* physical EOF */ | |
53 | uint64_t sh_bof; /* logical BOF */ | |
54 | uint64_t sh_eof; /* logical EOF */ | |
55 | uint64_t sh_records_lost; /* num of records overwritten */ | |
56 | } spa_history_phys_t; | |
57 | ||
58 | struct spa_aux_vdev { | |
59 | uint64_t sav_object; /* MOS object for device list */ | |
60 | nvlist_t *sav_config; /* cached device config */ | |
61 | vdev_t **sav_vdevs; /* devices */ | |
62 | int sav_count; /* number devices */ | |
63 | boolean_t sav_sync; /* sync the device list */ | |
64 | nvlist_t **sav_pending; /* pending device additions */ | |
65 | uint_t sav_npending; /* # pending devices */ | |
66 | }; | |
67 | ||
68 | typedef struct spa_config_lock { | |
69 | kmutex_t scl_lock; | |
70 | kthread_t *scl_writer; | |
b128c09f | 71 | int scl_write_wanted; |
34dc7c2f BB |
72 | kcondvar_t scl_cv; |
73 | refcount_t scl_count; | |
74 | } spa_config_lock_t; | |
75 | ||
b128c09f BB |
76 | typedef struct spa_config_dirent { |
77 | list_node_t scd_link; | |
78 | char *scd_path; | |
79 | } spa_config_dirent_t; | |
80 | ||
81 | typedef enum spa_log_state { | |
82 | SPA_LOG_UNKNOWN = 0, /* unknown log state */ | |
83 | SPA_LOG_MISSING, /* missing log(s) */ | |
84 | SPA_LOG_CLEAR, /* clear the log(s) */ | |
85 | SPA_LOG_GOOD, /* log(s) are good */ | |
86 | } spa_log_state_t; | |
87 | ||
88 | enum zio_taskq_type { | |
89 | ZIO_TASKQ_ISSUE = 0, | |
90 | ZIO_TASKQ_INTERRUPT, | |
91 | ZIO_TASKQ_TYPES | |
92 | }; | |
93 | ||
34dc7c2f BB |
94 | struct spa { |
95 | /* | |
96 | * Fields protected by spa_namespace_lock. | |
97 | */ | |
b128c09f | 98 | char spa_name[MAXNAMELEN]; /* pool name */ |
34dc7c2f BB |
99 | avl_node_t spa_avl; /* node in spa_namespace_avl */ |
100 | nvlist_t *spa_config; /* last synced config */ | |
101 | nvlist_t *spa_config_syncing; /* currently syncing config */ | |
102 | uint64_t spa_config_txg; /* txg of last config change */ | |
34dc7c2f | 103 | int spa_sync_pass; /* iterate-to-convergence */ |
b128c09f | 104 | pool_state_t spa_state; /* pool state */ |
34dc7c2f | 105 | int spa_inject_ref; /* injection references */ |
34dc7c2f BB |
106 | uint8_t spa_sync_on; /* sync threads are running */ |
107 | spa_load_state_t spa_load_state; /* current load operation */ | |
b128c09f | 108 | taskq_t *spa_zio_taskq[ZIO_TYPES][ZIO_TASKQ_TYPES]; |
34dc7c2f BB |
109 | dsl_pool_t *spa_dsl_pool; |
110 | metaslab_class_t *spa_normal_class; /* normal data class */ | |
111 | metaslab_class_t *spa_log_class; /* intent log data class */ | |
112 | uint64_t spa_first_txg; /* first txg after spa_open() */ | |
113 | uint64_t spa_final_txg; /* txg of export/destroy */ | |
114 | uint64_t spa_freeze_txg; /* freeze pool at this txg */ | |
115 | objset_t *spa_meta_objset; /* copy of dp->dp_meta_objset */ | |
116 | txg_list_t spa_vdev_txg_list; /* per-txg dirty vdev list */ | |
117 | vdev_t *spa_root_vdev; /* top-level vdev container */ | |
118 | uint64_t spa_load_guid; /* initial guid for spa_load */ | |
b128c09f BB |
119 | list_t spa_config_dirty_list; /* vdevs with dirty config */ |
120 | list_t spa_state_dirty_list; /* vdevs with dirty state */ | |
34dc7c2f BB |
121 | spa_aux_vdev_t spa_spares; /* hot spares */ |
122 | spa_aux_vdev_t spa_l2cache; /* L2ARC cache devices */ | |
123 | uint64_t spa_config_object; /* MOS object for pool config */ | |
124 | uint64_t spa_syncing_txg; /* txg currently syncing */ | |
125 | uint64_t spa_sync_bplist_obj; /* object for deferred frees */ | |
126 | bplist_t spa_sync_bplist; /* deferred-free bplist */ | |
34dc7c2f BB |
127 | uberblock_t spa_ubsync; /* last synced uberblock */ |
128 | uberblock_t spa_uberblock; /* current uberblock */ | |
129 | kmutex_t spa_scrub_lock; /* resilver/scrub lock */ | |
34dc7c2f BB |
130 | uint64_t spa_scrub_inflight; /* in-flight scrub I/Os */ |
131 | uint64_t spa_scrub_maxinflight; /* max in-flight scrub I/Os */ | |
132 | uint64_t spa_scrub_errors; /* scrub I/O error count */ | |
34dc7c2f | 133 | kcondvar_t spa_scrub_io_cv; /* scrub I/O completion */ |
34dc7c2f BB |
134 | uint8_t spa_scrub_active; /* active or suspended? */ |
135 | uint8_t spa_scrub_type; /* type of scrub we're doing */ | |
136 | uint8_t spa_scrub_finished; /* indicator to rotate logs */ | |
b128c09f BB |
137 | uint8_t spa_scrub_started; /* started since last boot */ |
138 | uint8_t spa_scrub_reopen; /* scrub doing vdev_reopen */ | |
34dc7c2f BB |
139 | kmutex_t spa_async_lock; /* protect async state */ |
140 | kthread_t *spa_async_thread; /* thread doing async task */ | |
141 | int spa_async_suspended; /* async tasks suspended */ | |
142 | kcondvar_t spa_async_cv; /* wait for thread_exit() */ | |
143 | uint16_t spa_async_tasks; /* async task mask */ | |
b128c09f BB |
144 | kmutex_t spa_async_root_lock; /* protects async root count */ |
145 | uint64_t spa_async_root_count; /* number of async root zios */ | |
146 | kcondvar_t spa_async_root_cv; /* notify when count == 0 */ | |
34dc7c2f | 147 | char *spa_root; /* alternate root directory */ |
34dc7c2f BB |
148 | uint64_t spa_ena; /* spa-wide ereport ENA */ |
149 | boolean_t spa_last_open_failed; /* true if last open faled */ | |
150 | kmutex_t spa_errlog_lock; /* error log lock */ | |
151 | uint64_t spa_errlog_last; /* last error log object */ | |
152 | uint64_t spa_errlog_scrub; /* scrub error log object */ | |
153 | kmutex_t spa_errlist_lock; /* error list/ereport lock */ | |
154 | avl_tree_t spa_errlist_last; /* last error list */ | |
155 | avl_tree_t spa_errlist_scrub; /* scrub error list */ | |
156 | uint64_t spa_deflate; /* should we deflate? */ | |
157 | uint64_t spa_history; /* history object */ | |
158 | kmutex_t spa_history_lock; /* history lock */ | |
159 | vdev_t *spa_pending_vdev; /* pending vdev additions */ | |
160 | kmutex_t spa_props_lock; /* property lock */ | |
161 | uint64_t spa_pool_props_object; /* object for properties */ | |
162 | uint64_t spa_bootfs; /* default boot filesystem */ | |
b128c09f BB |
163 | uint64_t spa_failmode; /* failure mode for the pool */ |
164 | uint64_t spa_delegation; /* delegation on/off */ | |
165 | list_t spa_config_list; /* previous cache file(s) */ | |
166 | zio_t *spa_suspend_zio_root; /* root of all suspended I/O */ | |
167 | kmutex_t spa_suspend_lock; /* protects suspend_zio_root */ | |
168 | kcondvar_t spa_suspend_cv; /* notification of resume */ | |
169 | uint8_t spa_suspended; /* pool is suspended */ | |
170 | boolean_t spa_import_faulted; /* allow faulted vdevs */ | |
171 | boolean_t spa_is_root; /* pool is root */ | |
172 | int spa_minref; /* num refs when first opened */ | |
fb5f0bc8 | 173 | int spa_mode; /* FREAD | FWRITE */ |
b128c09f | 174 | spa_log_state_t spa_log_state; /* log state */ |
34dc7c2f BB |
175 | /* |
176 | * spa_refcnt & spa_config_lock must be the last elements | |
177 | * because refcount_t changes size based on compilation options. | |
178 | * In order for the MDB module to function correctly, the other | |
179 | * fields must remain in the same location. | |
180 | */ | |
b128c09f | 181 | spa_config_lock_t spa_config_lock[SCL_LOCKS]; /* config changes */ |
34dc7c2f BB |
182 | refcount_t spa_refcount; /* number of opens */ |
183 | }; | |
184 | ||
b128c09f BB |
185 | extern const char *spa_config_path; |
186 | ||
187 | #define BOOTFS_COMPRESS_VALID(compress) \ | |
188 | ((compress) == ZIO_COMPRESS_LZJB || \ | |
189 | ((compress) == ZIO_COMPRESS_ON && \ | |
190 | ZIO_COMPRESS_ON_VALUE == ZIO_COMPRESS_LZJB) || \ | |
191 | (compress) == ZIO_COMPRESS_OFF) | |
34dc7c2f BB |
192 | |
193 | #ifdef __cplusplus | |
194 | } | |
195 | #endif | |
196 | ||
197 | #endif /* _SYS_SPA_IMPL_H */ |