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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 | /* | |
9babb374 | 22 | * Copyright 2009 Sun Microsystems, Inc. All rights reserved. |
34dc7c2f BB |
23 | * Use is subject to license terms. |
24 | */ | |
25 | ||
26 | #ifndef _SYS_DMU_OBJSET_H | |
27 | #define _SYS_DMU_OBJSET_H | |
28 | ||
34dc7c2f BB |
29 | #include <sys/spa.h> |
30 | #include <sys/arc.h> | |
31 | #include <sys/txg.h> | |
32 | #include <sys/zfs_context.h> | |
33 | #include <sys/dnode.h> | |
34 | #include <sys/zio.h> | |
35 | #include <sys/zil.h> | |
36 | ||
37 | #ifdef __cplusplus | |
38 | extern "C" { | |
39 | #endif | |
40 | ||
41 | struct dsl_dataset; | |
42 | struct dmu_tx; | |
43 | struct objset_impl; | |
44 | ||
9babb374 BB |
45 | #define OBJSET_PHYS_SIZE 2048 |
46 | #define OBJSET_OLD_PHYS_SIZE 1024 | |
47 | ||
48 | #define OBJSET_FLAG_USERACCOUNTING_COMPLETE (1ULL<<0) | |
49 | ||
34dc7c2f BB |
50 | typedef struct objset_phys { |
51 | dnode_phys_t os_meta_dnode; | |
52 | zil_header_t os_zil_header; | |
53 | uint64_t os_type; | |
9babb374 BB |
54 | uint64_t os_flags; |
55 | char os_pad[OBJSET_PHYS_SIZE - sizeof (dnode_phys_t)*3 - | |
56 | sizeof (zil_header_t) - sizeof (uint64_t)*2]; | |
57 | dnode_phys_t os_userused_dnode; | |
58 | dnode_phys_t os_groupused_dnode; | |
34dc7c2f BB |
59 | } objset_phys_t; |
60 | ||
61 | struct objset { | |
62 | struct objset_impl *os; | |
63 | int os_mode; | |
64 | }; | |
65 | ||
66 | typedef struct objset_impl { | |
67 | /* Immutable: */ | |
68 | struct dsl_dataset *os_dsl_dataset; | |
69 | spa_t *os_spa; | |
70 | arc_buf_t *os_phys_buf; | |
71 | objset_phys_t *os_phys; | |
72 | dnode_t *os_meta_dnode; | |
9babb374 BB |
73 | dnode_t *os_userused_dnode; |
74 | dnode_t *os_groupused_dnode; | |
34dc7c2f BB |
75 | zilog_t *os_zil; |
76 | objset_t os; | |
77 | uint8_t os_checksum; /* can change, under dsl_dir's locks */ | |
78 | uint8_t os_compress; /* can change, under dsl_dir's locks */ | |
79 | uint8_t os_copies; /* can change, under dsl_dir's locks */ | |
b128c09f BB |
80 | uint8_t os_primary_cache; /* can change, under dsl_dir's locks */ |
81 | uint8_t os_secondary_cache; /* can change, under dsl_dir's locks */ | |
34dc7c2f BB |
82 | |
83 | /* no lock needed: */ | |
84 | struct dmu_tx *os_synctx; /* XXX sketchy */ | |
85 | blkptr_t *os_rootbp; | |
b128c09f | 86 | zil_header_t os_zil_header; |
9babb374 BB |
87 | list_t os_synced_dnodes; |
88 | uint64_t os_flags; | |
34dc7c2f BB |
89 | |
90 | /* Protected by os_obj_lock */ | |
91 | kmutex_t os_obj_lock; | |
92 | uint64_t os_obj_next; | |
93 | ||
94 | /* Protected by os_lock */ | |
95 | kmutex_t os_lock; | |
96 | list_t os_dirty_dnodes[TXG_SIZE]; | |
97 | list_t os_free_dnodes[TXG_SIZE]; | |
98 | list_t os_dnodes; | |
99 | list_t os_downgraded_dbufs; | |
100 | ||
101 | /* stuff we store for the user */ | |
102 | kmutex_t os_user_ptr_lock; | |
103 | void *os_user_ptr; | |
104 | } objset_impl_t; | |
105 | ||
106 | #define DMU_META_DNODE_OBJECT 0 | |
9babb374 | 107 | #define DMU_OBJECT_IS_SPECIAL(obj) ((int64_t)(obj) <= 0) |
34dc7c2f | 108 | |
b128c09f BB |
109 | #define DMU_OS_IS_L2CACHEABLE(os) \ |
110 | ((os)->os_secondary_cache == ZFS_CACHE_ALL || \ | |
111 | (os)->os_secondary_cache == ZFS_CACHE_METADATA) | |
112 | ||
34dc7c2f BB |
113 | /* called from zpl */ |
114 | int dmu_objset_open(const char *name, dmu_objset_type_t type, int mode, | |
115 | objset_t **osp); | |
116 | void dmu_objset_close(objset_t *os); | |
117 | int dmu_objset_create(const char *name, dmu_objset_type_t type, | |
118 | objset_t *clone_parent, uint64_t flags, | |
119 | void (*func)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx), void *arg); | |
45d1cae3 | 120 | int dmu_objset_destroy(const char *name, boolean_t defer); |
34dc7c2f | 121 | int dmu_objset_rollback(objset_t *os); |
9babb374 BB |
122 | int dmu_objset_snapshot(char *fsname, char *snapname, nvlist_t *props, |
123 | boolean_t recursive); | |
34dc7c2f BB |
124 | void dmu_objset_stats(objset_t *os, nvlist_t *nv); |
125 | void dmu_objset_fast_stat(objset_t *os, dmu_objset_stats_t *stat); | |
126 | void dmu_objset_space(objset_t *os, uint64_t *refdbytesp, uint64_t *availbytesp, | |
127 | uint64_t *usedobjsp, uint64_t *availobjsp); | |
128 | uint64_t dmu_objset_fsid_guid(objset_t *os); | |
129 | int dmu_objset_find(char *name, int func(char *, void *), void *arg, | |
130 | int flags); | |
b128c09f BB |
131 | int dmu_objset_find_spa(spa_t *spa, const char *name, |
132 | int func(spa_t *, uint64_t, const char *, void *), void *arg, int flags); | |
d164b209 | 133 | int dmu_objset_prefetch(char *name, void *arg); |
34dc7c2f BB |
134 | void dmu_objset_byteswap(void *buf, size_t size); |
135 | int dmu_objset_evict_dbufs(objset_t *os); | |
136 | ||
137 | /* called from dsl */ | |
138 | void dmu_objset_sync(objset_impl_t *os, zio_t *zio, dmu_tx_t *tx); | |
139 | objset_impl_t *dmu_objset_create_impl(spa_t *spa, struct dsl_dataset *ds, | |
140 | blkptr_t *bp, dmu_objset_type_t type, dmu_tx_t *tx); | |
141 | int dmu_objset_open_impl(spa_t *spa, struct dsl_dataset *ds, blkptr_t *bp, | |
142 | objset_impl_t **osip); | |
143 | void dmu_objset_evict(struct dsl_dataset *ds, void *arg); | |
9babb374 BB |
144 | void dmu_objset_do_userquota_callbacks(objset_impl_t *os, dmu_tx_t *tx); |
145 | boolean_t dmu_objset_userused_enabled(objset_impl_t *os); | |
146 | int dmu_objset_userspace_upgrade(objset_t *os); | |
147 | boolean_t dmu_objset_userspace_present(objset_t *os); | |
34dc7c2f BB |
148 | |
149 | #ifdef __cplusplus | |
150 | } | |
151 | #endif | |
152 | ||
153 | #endif /* _SYS_DMU_OBJSET_H */ |