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) 2012, 2014 by Delphix. All rights reserved.
24 * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
25 */
26
27 /* Portions Copyright 2010 Robert Milkowski */
28
29 #ifndef _SYS_DMU_OBJSET_H
30 #define _SYS_DMU_OBJSET_H
31
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>
39 #include <sys/sa.h>
40
41 #ifdef __cplusplus
42 extern "C" {
43 #endif
44
57 #define OBJSET_FLAG_USERACCOUNTING_COMPLETE (1ULL<<0)
58
59 typedef struct objset_phys {
60 dnode_phys_t os_meta_dnode;
61 zil_header_t os_zil_header;
62 uint64_t os_type;
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;
68 } objset_phys_t;
69
70 struct objset {
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;
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;
85 zilog_t *os_zil;
86
87 /* can change, under dsl_dir's locks: */
88 enum zio_checksum os_checksum;
89 enum zio_compress os_compress;
90 uint8_t os_copies;
91 enum zio_checksum os_dedup_checksum;
92 boolean_t os_dedup_verify;
93 zfs_logbias_op_t os_logbias;
94 zfs_cache_type_t os_primary_cache;
95 zfs_cache_type_t os_secondary_cache;
96 zfs_sync_type_t os_sync;
97 zfs_redundant_metadata_type_t os_redundant_metadata;
98 int os_recordsize;
99
100 /* no lock needed: */
101 struct dmu_tx *os_synctx; /* XXX sketchy */
102 blkptr_t *os_rootbp;
103 zil_header_t os_zil_header;
104 list_t os_synced_dnodes;
105 uint64_t os_flags;
106
107 /* Protected by os_obj_lock */
108 kmutex_t os_obj_lock;
109 uint64_t os_obj_next;
110
111 /* Protected by os_lock */
112 kmutex_t os_lock;
153 void *arg, int flags);
154 int dmu_objset_prefetch(const char *name, void *arg);
155 void dmu_objset_evict_dbufs(objset_t *os);
156 timestruc_t dmu_objset_snap_cmtime(objset_t *os);
157
158 /* called from dsl */
159 void dmu_objset_sync(objset_t *os, zio_t *zio, dmu_tx_t *tx);
160 boolean_t dmu_objset_is_dirty(objset_t *os, uint64_t txg);
161 objset_t *dmu_objset_create_impl(spa_t *spa, struct dsl_dataset *ds,
162 blkptr_t *bp, dmu_objset_type_t type, dmu_tx_t *tx);
163 int dmu_objset_open_impl(spa_t *spa, struct dsl_dataset *ds, blkptr_t *bp,
164 objset_t **osp);
165 void dmu_objset_evict(objset_t *os);
166 void dmu_objset_do_userquota_updates(objset_t *os, dmu_tx_t *tx);
167 void dmu_objset_userquota_get_ids(dnode_t *dn, boolean_t before, dmu_tx_t *tx);
168 boolean_t dmu_objset_userused_enabled(objset_t *os);
169 int dmu_objset_userspace_upgrade(objset_t *os);
170 boolean_t dmu_objset_userspace_present(objset_t *os);
171 int dmu_fsname(const char *snapname, char *buf);
172
173 void dmu_objset_init(void);
174 void dmu_objset_fini(void);
175
176 #ifdef __cplusplus
177 }
178 #endif
179
180 #endif /* _SYS_DMU_OBJSET_H */
|
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) 2012, 2014 by Delphix. All rights reserved.
24 * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
25 * Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
26 */
27
28 /* Portions Copyright 2010 Robert Milkowski */
29
30 #ifndef _SYS_DMU_OBJSET_H
31 #define _SYS_DMU_OBJSET_H
32
33 #include <sys/spa.h>
34 #include <sys/arc.h>
35 #include <sys/txg.h>
36 #include <sys/zfs_context.h>
37 #include <sys/dnode.h>
38 #include <sys/zio.h>
39 #include <sys/zil.h>
40 #include <sys/sa.h>
41
42 #ifdef __cplusplus
43 extern "C" {
44 #endif
45
58 #define OBJSET_FLAG_USERACCOUNTING_COMPLETE (1ULL<<0)
59
60 typedef struct objset_phys {
61 dnode_phys_t os_meta_dnode;
62 zil_header_t os_zil_header;
63 uint64_t os_type;
64 uint64_t os_flags;
65 char os_pad[OBJSET_PHYS_SIZE - sizeof (dnode_phys_t)*3 -
66 sizeof (zil_header_t) - sizeof (uint64_t)*2];
67 dnode_phys_t os_userused_dnode;
68 dnode_phys_t os_groupused_dnode;
69 } objset_phys_t;
70
71 struct objset {
72 /* Immutable: */
73 struct dsl_dataset *os_dsl_dataset;
74 spa_t *os_spa;
75 arc_buf_t *os_phys_buf;
76 objset_phys_t *os_phys;
77 /*
78 * The following "special" dnodes have no parent, are exempt
79 * from dnode_move(), and are not recorded in os_dnodes, but they
80 * root their descendents in this objset using handles anyway, so
81 * that all access to dnodes from dbufs consistently uses handles.
82 */
83 dnode_handle_t os_meta_dnode;
84 dnode_handle_t os_userused_dnode;
85 dnode_handle_t os_groupused_dnode;
86 zilog_t *os_zil;
87
88 list_node_t os_evicting_node;
89
90 /* can change, under dsl_dir's locks: */
91 enum zio_checksum os_checksum;
92 enum zio_compress os_compress;
93 uint8_t os_copies;
94 enum zio_checksum os_dedup_checksum;
95 boolean_t os_dedup_verify;
96 boolean_t os_evicting;
97 zfs_logbias_op_t os_logbias;
98 zfs_cache_type_t os_primary_cache;
99 zfs_cache_type_t os_secondary_cache;
100 zfs_sync_type_t os_sync;
101 zfs_redundant_metadata_type_t os_redundant_metadata;
102 int os_recordsize;
103
104 /* no lock needed: */
105 struct dmu_tx *os_synctx; /* XXX sketchy */
106 blkptr_t *os_rootbp;
107 zil_header_t os_zil_header;
108 list_t os_synced_dnodes;
109 uint64_t os_flags;
110
111 /* Protected by os_obj_lock */
112 kmutex_t os_obj_lock;
113 uint64_t os_obj_next;
114
115 /* Protected by os_lock */
116 kmutex_t os_lock;
157 void *arg, int flags);
158 int dmu_objset_prefetch(const char *name, void *arg);
159 void dmu_objset_evict_dbufs(objset_t *os);
160 timestruc_t dmu_objset_snap_cmtime(objset_t *os);
161
162 /* called from dsl */
163 void dmu_objset_sync(objset_t *os, zio_t *zio, dmu_tx_t *tx);
164 boolean_t dmu_objset_is_dirty(objset_t *os, uint64_t txg);
165 objset_t *dmu_objset_create_impl(spa_t *spa, struct dsl_dataset *ds,
166 blkptr_t *bp, dmu_objset_type_t type, dmu_tx_t *tx);
167 int dmu_objset_open_impl(spa_t *spa, struct dsl_dataset *ds, blkptr_t *bp,
168 objset_t **osp);
169 void dmu_objset_evict(objset_t *os);
170 void dmu_objset_do_userquota_updates(objset_t *os, dmu_tx_t *tx);
171 void dmu_objset_userquota_get_ids(dnode_t *dn, boolean_t before, dmu_tx_t *tx);
172 boolean_t dmu_objset_userused_enabled(objset_t *os);
173 int dmu_objset_userspace_upgrade(objset_t *os);
174 boolean_t dmu_objset_userspace_present(objset_t *os);
175 int dmu_fsname(const char *snapname, char *buf);
176
177 void dmu_objset_evict_done(objset_t *os);
178
179 void dmu_objset_init(void);
180 void dmu_objset_fini(void);
181
182 #ifdef __cplusplus
183 }
184 #endif
185
186 #endif /* _SYS_DMU_OBJSET_H */
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