]>
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 | /* | |
428870ff | 22 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
3a17a7a9 | 23 | * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. |
6f1ffb06 | 24 | * Copyright (c) 2012 by Delphix. All rights reserved. |
34dc7c2f BB |
25 | */ |
26 | ||
428870ff BB |
27 | /* Portions Copyright 2010 Robert Milkowski */ |
28 | ||
34dc7c2f BB |
29 | #ifndef _SYS_DMU_OBJSET_H |
30 | #define _SYS_DMU_OBJSET_H | |
31 | ||
34dc7c2f BB |
32 | #include <sys/spa.h> |
33 | #include <sys/arc.h> | |
34 | #include <sys/txg.h> | |
35 | #include <sys/zfs_context.h> | |
36 | #include <sys/dnode.h> | |
37 | #include <sys/zio.h> | |
38 | #include <sys/zil.h> | |
428870ff | 39 | #include <sys/sa.h> |
34dc7c2f BB |
40 | |
41 | #ifdef __cplusplus | |
42 | extern "C" { | |
43 | #endif | |
44 | ||
572e2857 BB |
45 | extern krwlock_t os_lock; |
46 | ||
13fe0198 | 47 | struct dsl_pool; |
34dc7c2f BB |
48 | struct dsl_dataset; |
49 | struct dmu_tx; | |
34dc7c2f | 50 | |
9babb374 BB |
51 | #define OBJSET_PHYS_SIZE 2048 |
52 | #define OBJSET_OLD_PHYS_SIZE 1024 | |
53 | ||
428870ff BB |
54 | #define OBJSET_BUF_HAS_USERUSED(buf) \ |
55 | (arc_buf_size(buf) > OBJSET_OLD_PHYS_SIZE) | |
56 | ||
9babb374 BB |
57 | #define OBJSET_FLAG_USERACCOUNTING_COMPLETE (1ULL<<0) |
58 | ||
34dc7c2f BB |
59 | typedef struct objset_phys { |
60 | dnode_phys_t os_meta_dnode; | |
61 | zil_header_t os_zil_header; | |
62 | uint64_t os_type; | |
9babb374 BB |
63 | uint64_t os_flags; |
64 | char os_pad[OBJSET_PHYS_SIZE - sizeof (dnode_phys_t)*3 - | |
65 | sizeof (zil_header_t) - sizeof (uint64_t)*2]; | |
66 | dnode_phys_t os_userused_dnode; | |
67 | dnode_phys_t os_groupused_dnode; | |
34dc7c2f BB |
68 | } objset_phys_t; |
69 | ||
70 | struct objset { | |
34dc7c2f BB |
71 | /* Immutable: */ |
72 | struct dsl_dataset *os_dsl_dataset; | |
73 | spa_t *os_spa; | |
74 | arc_buf_t *os_phys_buf; | |
75 | objset_phys_t *os_phys; | |
572e2857 BB |
76 | /* |
77 | * The following "special" dnodes have no parent and are exempt from | |
78 | * dnode_move(), but they root their descendents in this objset using | |
79 | * handles anyway, so that all access to dnodes from dbufs consistently | |
80 | * uses handles. | |
81 | */ | |
82 | dnode_handle_t os_meta_dnode; | |
83 | dnode_handle_t os_userused_dnode; | |
84 | dnode_handle_t os_groupused_dnode; | |
34dc7c2f | 85 | zilog_t *os_zil; |
428870ff BB |
86 | |
87 | /* can change, under dsl_dir's locks: */ | |
88 | uint8_t os_checksum; | |
89 | uint8_t os_compress; | |
90 | uint8_t os_copies; | |
91 | uint8_t os_dedup_checksum; | |
92 | uint8_t os_dedup_verify; | |
93 | uint8_t os_logbias; | |
94 | uint8_t os_primary_cache; | |
95 | uint8_t os_secondary_cache; | |
96 | uint8_t os_sync; | |
34dc7c2f BB |
97 | |
98 | /* no lock needed: */ | |
99 | struct dmu_tx *os_synctx; /* XXX sketchy */ | |
100 | blkptr_t *os_rootbp; | |
b128c09f | 101 | zil_header_t os_zil_header; |
9babb374 BB |
102 | list_t os_synced_dnodes; |
103 | uint64_t os_flags; | |
34dc7c2f BB |
104 | |
105 | /* Protected by os_obj_lock */ | |
106 | kmutex_t os_obj_lock; | |
107 | uint64_t os_obj_next; | |
108 | ||
109 | /* Protected by os_lock */ | |
110 | kmutex_t os_lock; | |
111 | list_t os_dirty_dnodes[TXG_SIZE]; | |
112 | list_t os_free_dnodes[TXG_SIZE]; | |
113 | list_t os_dnodes; | |
114 | list_t os_downgraded_dbufs; | |
115 | ||
116 | /* stuff we store for the user */ | |
117 | kmutex_t os_user_ptr_lock; | |
118 | void *os_user_ptr; | |
428870ff BB |
119 | sa_os_t *os_sa; |
120 | }; | |
121 | ||
122 | #define DMU_META_OBJSET 0 | |
34dc7c2f | 123 | #define DMU_META_DNODE_OBJECT 0 |
9babb374 | 124 | #define DMU_OBJECT_IS_SPECIAL(obj) ((int64_t)(obj) <= 0) |
572e2857 BB |
125 | #define DMU_META_DNODE(os) ((os)->os_meta_dnode.dnh_dnode) |
126 | #define DMU_USERUSED_DNODE(os) ((os)->os_userused_dnode.dnh_dnode) | |
127 | #define DMU_GROUPUSED_DNODE(os) ((os)->os_groupused_dnode.dnh_dnode) | |
34dc7c2f | 128 | |
b128c09f BB |
129 | #define DMU_OS_IS_L2CACHEABLE(os) \ |
130 | ((os)->os_secondary_cache == ZFS_CACHE_ALL || \ | |
131 | (os)->os_secondary_cache == ZFS_CACHE_METADATA) | |
132 | ||
4e59f475 | 133 | #define DMU_OS_IS_L2COMPRESSIBLE(os) (zfs_mdcomp_disable == B_FALSE) |
3a17a7a9 | 134 | |
34dc7c2f | 135 | /* called from zpl */ |
428870ff BB |
136 | int dmu_objset_hold(const char *name, void *tag, objset_t **osp); |
137 | int dmu_objset_own(const char *name, dmu_objset_type_t type, | |
138 | boolean_t readonly, void *tag, objset_t **osp); | |
831baf06 | 139 | void dmu_objset_refresh_ownership(objset_t *os, void *tag); |
428870ff BB |
140 | void dmu_objset_rele(objset_t *os, void *tag); |
141 | void dmu_objset_disown(objset_t *os, void *tag); | |
142 | int dmu_objset_from_ds(struct dsl_dataset *ds, objset_t **osp); | |
143 | ||
34dc7c2f BB |
144 | void dmu_objset_stats(objset_t *os, nvlist_t *nv); |
145 | void dmu_objset_fast_stat(objset_t *os, dmu_objset_stats_t *stat); | |
146 | void dmu_objset_space(objset_t *os, uint64_t *refdbytesp, uint64_t *availbytesp, | |
147 | uint64_t *usedobjsp, uint64_t *availobjsp); | |
148 | uint64_t dmu_objset_fsid_guid(objset_t *os); | |
13fe0198 MA |
149 | int dmu_objset_find_dp(struct dsl_pool *dp, uint64_t ddobj, |
150 | int func(struct dsl_pool *, struct dsl_dataset *, void *), | |
151 | void *arg, int flags); | |
152 | void dmu_objset_evict_dbufs(objset_t *os); | |
428870ff | 153 | timestruc_t dmu_objset_snap_cmtime(objset_t *os); |
34dc7c2f BB |
154 | |
155 | /* called from dsl */ | |
428870ff BB |
156 | void dmu_objset_sync(objset_t *os, zio_t *zio, dmu_tx_t *tx); |
157 | boolean_t dmu_objset_is_dirty(objset_t *os, uint64_t txg); | |
158 | objset_t *dmu_objset_create_impl(spa_t *spa, struct dsl_dataset *ds, | |
34dc7c2f BB |
159 | blkptr_t *bp, dmu_objset_type_t type, dmu_tx_t *tx); |
160 | int dmu_objset_open_impl(spa_t *spa, struct dsl_dataset *ds, blkptr_t *bp, | |
428870ff BB |
161 | objset_t **osp); |
162 | void dmu_objset_evict(objset_t *os); | |
163 | void dmu_objset_do_userquota_updates(objset_t *os, dmu_tx_t *tx); | |
164 | void dmu_objset_userquota_get_ids(dnode_t *dn, boolean_t before, dmu_tx_t *tx); | |
165 | boolean_t dmu_objset_userused_enabled(objset_t *os); | |
9babb374 BB |
166 | int dmu_objset_userspace_upgrade(objset_t *os); |
167 | boolean_t dmu_objset_userspace_present(objset_t *os); | |
13fe0198 | 168 | int dmu_fsname(const char *snapname, char *buf); |
34dc7c2f | 169 | |
572e2857 BB |
170 | void dmu_objset_init(void); |
171 | void dmu_objset_fini(void); | |
172 | ||
34dc7c2f BB |
173 | #ifdef __cplusplus |
174 | } | |
175 | #endif | |
176 | ||
177 | #endif /* _SYS_DMU_OBJSET_H */ |