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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 | /* | |
428870ff | 22 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
64fc7762 | 23 | * Copyright (c) 2012, 2017 by Delphix. All rights reserved. |
3a17a7a9 | 24 | * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. |
0c66c32d | 25 | * Copyright (c) 2014 Spectra Logic Corporation, All rights reserved. |
34dc7c2f BB |
26 | */ |
27 | ||
428870ff BB |
28 | /* Portions Copyright 2010 Robert Milkowski */ |
29 | ||
34dc7c2f BB |
30 | #ifndef _SYS_DMU_OBJSET_H |
31 | #define _SYS_DMU_OBJSET_H | |
32 | ||
34dc7c2f BB |
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> | |
428870ff | 40 | #include <sys/sa.h> |
34dc7c2f BB |
41 | |
42 | #ifdef __cplusplus | |
43 | extern "C" { | |
44 | #endif | |
45 | ||
572e2857 BB |
46 | extern krwlock_t os_lock; |
47 | ||
13fe0198 | 48 | struct dsl_pool; |
34dc7c2f BB |
49 | struct dsl_dataset; |
50 | struct dmu_tx; | |
34dc7c2f | 51 | |
9c5167d1 NF |
52 | #define OBJSET_PHYS_SIZE_V1 1024 |
53 | #define OBJSET_PHYS_SIZE_V2 2048 | |
54 | #define OBJSET_PHYS_SIZE_V3 4096 | |
9babb374 | 55 | |
428870ff | 56 | #define OBJSET_BUF_HAS_USERUSED(buf) \ |
9c5167d1 NF |
57 | (arc_buf_size(buf) >= OBJSET_PHYS_SIZE_V2) |
58 | #define OBJSET_BUF_HAS_PROJECTUSED(buf) \ | |
59 | (arc_buf_size(buf) >= OBJSET_PHYS_SIZE_V3) | |
428870ff | 60 | |
9c5167d1 NF |
61 | #define OBJSET_FLAG_USERACCOUNTING_COMPLETE (1ULL << 0) |
62 | #define OBJSET_FLAG_USEROBJACCOUNTING_COMPLETE (1ULL << 1) | |
63 | #define OBJSET_FLAG_PROJECTQUOTA_COMPLETE (1ULL << 2) | |
9babb374 | 64 | |
b5256303 TC |
65 | /* all flags are currently non-portable */ |
66 | #define OBJSET_CRYPT_PORTABLE_FLAGS_MASK (0) | |
67 | ||
34dc7c2f BB |
68 | typedef struct objset_phys { |
69 | dnode_phys_t os_meta_dnode; | |
70 | zil_header_t os_zil_header; | |
71 | uint64_t os_type; | |
9babb374 | 72 | uint64_t os_flags; |
b5256303 TC |
73 | uint8_t os_portable_mac[ZIO_OBJSET_MAC_LEN]; |
74 | uint8_t os_local_mac[ZIO_OBJSET_MAC_LEN]; | |
9c5167d1 | 75 | char os_pad0[OBJSET_PHYS_SIZE_V2 - sizeof (dnode_phys_t)*3 - |
b5256303 TC |
76 | sizeof (zil_header_t) - sizeof (uint64_t)*2 - |
77 | 2*ZIO_OBJSET_MAC_LEN]; | |
9babb374 BB |
78 | dnode_phys_t os_userused_dnode; |
79 | dnode_phys_t os_groupused_dnode; | |
9c5167d1 NF |
80 | dnode_phys_t os_projectused_dnode; |
81 | char os_pad1[OBJSET_PHYS_SIZE_V3 - OBJSET_PHYS_SIZE_V2 - | |
82 | sizeof (dnode_phys_t)]; | |
34dc7c2f BB |
83 | } objset_phys_t; |
84 | ||
1de321e6 JX |
85 | typedef int (*dmu_objset_upgrade_cb_t)(objset_t *); |
86 | ||
34dc7c2f | 87 | struct objset { |
34dc7c2f BB |
88 | /* Immutable: */ |
89 | struct dsl_dataset *os_dsl_dataset; | |
90 | spa_t *os_spa; | |
91 | arc_buf_t *os_phys_buf; | |
92 | objset_phys_t *os_phys; | |
b5256303 TC |
93 | boolean_t os_encrypted; |
94 | ||
572e2857 | 95 | /* |
0c66c32d JG |
96 | * The following "special" dnodes have no parent, are exempt |
97 | * from dnode_move(), and are not recorded in os_dnodes, but they | |
98 | * root their descendents in this objset using handles anyway, so | |
99 | * that all access to dnodes from dbufs consistently uses handles. | |
572e2857 BB |
100 | */ |
101 | dnode_handle_t os_meta_dnode; | |
102 | dnode_handle_t os_userused_dnode; | |
103 | dnode_handle_t os_groupused_dnode; | |
9c5167d1 | 104 | dnode_handle_t os_projectused_dnode; |
34dc7c2f | 105 | zilog_t *os_zil; |
428870ff | 106 | |
0c66c32d JG |
107 | list_node_t os_evicting_node; |
108 | ||
428870ff | 109 | /* can change, under dsl_dir's locks: */ |
50c957f7 | 110 | uint64_t os_dnodesize; /* default dnode size for new objects */ |
faf0f58c MA |
111 | enum zio_checksum os_checksum; |
112 | enum zio_compress os_compress; | |
428870ff | 113 | uint8_t os_copies; |
faf0f58c MA |
114 | enum zio_checksum os_dedup_checksum; |
115 | boolean_t os_dedup_verify; | |
116 | zfs_logbias_op_t os_logbias; | |
117 | zfs_cache_type_t os_primary_cache; | |
118 | zfs_cache_type_t os_secondary_cache; | |
119 | zfs_sync_type_t os_sync; | |
120 | zfs_redundant_metadata_type_t os_redundant_metadata; | |
f1512ee6 | 121 | int os_recordsize; |
34dc7c2f | 122 | |
cc9bb3e5 GM |
123 | /* |
124 | * Pointer is constant; the blkptr it points to is protected by | |
125 | * os_dsl_dataset->ds_bp_rwlock | |
126 | */ | |
127 | blkptr_t *os_rootbp; | |
128 | ||
34dc7c2f BB |
129 | /* no lock needed: */ |
130 | struct dmu_tx *os_synctx; /* XXX sketchy */ | |
b128c09f | 131 | zil_header_t os_zil_header; |
64fc7762 | 132 | multilist_t *os_synced_dnodes; |
9babb374 | 133 | uint64_t os_flags; |
68cbd56e NB |
134 | uint64_t os_freed_dnodes; |
135 | boolean_t os_rescan_dnodes; | |
34dc7c2f | 136 | |
b5256303 | 137 | /* os_phys_buf should be written raw next txg */ |
1b66810b | 138 | boolean_t os_next_write_raw[TXG_SIZE]; |
b5256303 | 139 | |
34dc7c2f BB |
140 | /* Protected by os_obj_lock */ |
141 | kmutex_t os_obj_lock; | |
dbeb8796 MA |
142 | uint64_t os_obj_next_chunk; |
143 | ||
144 | /* Per-CPU next object to allocate, protected by atomic ops. */ | |
145 | uint64_t *os_obj_next_percpu; | |
146 | int os_obj_next_percpu_len; | |
34dc7c2f BB |
147 | |
148 | /* Protected by os_lock */ | |
149 | kmutex_t os_lock; | |
64fc7762 | 150 | multilist_t *os_dirty_dnodes[TXG_SIZE]; |
34dc7c2f BB |
151 | list_t os_dnodes; |
152 | list_t os_downgraded_dbufs; | |
153 | ||
9c5167d1 | 154 | /* Protects changes to DMU_{USER,GROUP,PROJECT}USED_OBJECT */ |
64fc7762 MA |
155 | kmutex_t os_userused_lock; |
156 | ||
34dc7c2f BB |
157 | /* stuff we store for the user */ |
158 | kmutex_t os_user_ptr_lock; | |
159 | void *os_user_ptr; | |
428870ff | 160 | sa_os_t *os_sa; |
1de321e6 JX |
161 | |
162 | /* kernel thread to upgrade this dataset */ | |
163 | kmutex_t os_upgrade_lock; | |
164 | taskqid_t os_upgrade_id; | |
165 | dmu_objset_upgrade_cb_t os_upgrade_cb; | |
166 | boolean_t os_upgrade_exit; | |
167 | int os_upgrade_status; | |
428870ff BB |
168 | }; |
169 | ||
170 | #define DMU_META_OBJSET 0 | |
34dc7c2f | 171 | #define DMU_META_DNODE_OBJECT 0 |
9babb374 | 172 | #define DMU_OBJECT_IS_SPECIAL(obj) ((int64_t)(obj) <= 0) |
572e2857 BB |
173 | #define DMU_META_DNODE(os) ((os)->os_meta_dnode.dnh_dnode) |
174 | #define DMU_USERUSED_DNODE(os) ((os)->os_userused_dnode.dnh_dnode) | |
175 | #define DMU_GROUPUSED_DNODE(os) ((os)->os_groupused_dnode.dnh_dnode) | |
9c5167d1 | 176 | #define DMU_PROJECTUSED_DNODE(os) ((os)->os_projectused_dnode.dnh_dnode) |
34dc7c2f | 177 | |
b128c09f BB |
178 | #define DMU_OS_IS_L2CACHEABLE(os) \ |
179 | ((os)->os_secondary_cache == ZFS_CACHE_ALL || \ | |
180 | (os)->os_secondary_cache == ZFS_CACHE_METADATA) | |
181 | ||
34dc7c2f | 182 | /* called from zpl */ |
428870ff | 183 | int dmu_objset_hold(const char *name, void *tag, objset_t **osp); |
b5256303 TC |
184 | int dmu_objset_hold_flags(const char *name, boolean_t decrypt, void *tag, |
185 | objset_t **osp); | |
428870ff | 186 | int dmu_objset_own(const char *name, dmu_objset_type_t type, |
b5256303 | 187 | boolean_t readonly, boolean_t decrypt, void *tag, objset_t **osp); |
9c43027b | 188 | int dmu_objset_own_obj(struct dsl_pool *dp, uint64_t obj, |
b5256303 TC |
189 | dmu_objset_type_t type, boolean_t readonly, boolean_t decrypt, |
190 | void *tag, objset_t **osp); | |
191 | void dmu_objset_refresh_ownership(objset_t *os, boolean_t key_needed, | |
192 | void *tag); | |
428870ff | 193 | void dmu_objset_rele(objset_t *os, void *tag); |
b5256303 TC |
194 | void dmu_objset_rele_flags(objset_t *os, boolean_t decrypt, void *tag); |
195 | void dmu_objset_disown(objset_t *os, boolean_t decrypt, void *tag); | |
428870ff BB |
196 | int dmu_objset_from_ds(struct dsl_dataset *ds, objset_t **osp); |
197 | ||
34dc7c2f BB |
198 | void dmu_objset_stats(objset_t *os, nvlist_t *nv); |
199 | void dmu_objset_fast_stat(objset_t *os, dmu_objset_stats_t *stat); | |
200 | void dmu_objset_space(objset_t *os, uint64_t *refdbytesp, uint64_t *availbytesp, | |
201 | uint64_t *usedobjsp, uint64_t *availobjsp); | |
202 | uint64_t dmu_objset_fsid_guid(objset_t *os); | |
13fe0198 MA |
203 | int dmu_objset_find_dp(struct dsl_pool *dp, uint64_t ddobj, |
204 | int func(struct dsl_pool *, struct dsl_dataset *, void *), | |
205 | void *arg, int flags); | |
206 | void dmu_objset_evict_dbufs(objset_t *os); | |
428870ff | 207 | timestruc_t dmu_objset_snap_cmtime(objset_t *os); |
34dc7c2f BB |
208 | |
209 | /* called from dsl */ | |
428870ff BB |
210 | void dmu_objset_sync(objset_t *os, zio_t *zio, dmu_tx_t *tx); |
211 | boolean_t dmu_objset_is_dirty(objset_t *os, uint64_t txg); | |
b5256303 TC |
212 | objset_t *dmu_objset_create_impl_dnstats(spa_t *spa, struct dsl_dataset *ds, |
213 | blkptr_t *bp, dmu_objset_type_t type, int levels, int blksz, int ibs, | |
214 | dmu_tx_t *tx); | |
428870ff | 215 | objset_t *dmu_objset_create_impl(spa_t *spa, struct dsl_dataset *ds, |
34dc7c2f BB |
216 | blkptr_t *bp, dmu_objset_type_t type, dmu_tx_t *tx); |
217 | int dmu_objset_open_impl(spa_t *spa, struct dsl_dataset *ds, blkptr_t *bp, | |
428870ff BB |
218 | objset_t **osp); |
219 | void dmu_objset_evict(objset_t *os); | |
220 | void dmu_objset_do_userquota_updates(objset_t *os, dmu_tx_t *tx); | |
221 | void dmu_objset_userquota_get_ids(dnode_t *dn, boolean_t before, dmu_tx_t *tx); | |
222 | boolean_t dmu_objset_userused_enabled(objset_t *os); | |
9babb374 BB |
223 | int dmu_objset_userspace_upgrade(objset_t *os); |
224 | boolean_t dmu_objset_userspace_present(objset_t *os); | |
1de321e6 | 225 | boolean_t dmu_objset_userobjused_enabled(objset_t *os); |
126ae9f4 | 226 | boolean_t dmu_objset_userobjspace_upgradable(objset_t *os); |
1de321e6 | 227 | boolean_t dmu_objset_userobjspace_present(objset_t *os); |
ae76f45c | 228 | boolean_t dmu_objset_incompatible_encryption_version(objset_t *os); |
9c5167d1 NF |
229 | boolean_t dmu_objset_projectquota_enabled(objset_t *os); |
230 | boolean_t dmu_objset_projectquota_present(objset_t *os); | |
231 | boolean_t dmu_objset_projectquota_upgradable(objset_t *os); | |
232 | void dmu_objset_id_quota_upgrade(objset_t *os); | |
1de321e6 | 233 | |
13fe0198 | 234 | int dmu_fsname(const char *snapname, char *buf); |
34dc7c2f | 235 | |
0c66c32d | 236 | void dmu_objset_evict_done(objset_t *os); |
3ec3bc21 | 237 | void dmu_objset_willuse_space(objset_t *os, int64_t space, dmu_tx_t *tx); |
0c66c32d | 238 | |
572e2857 BB |
239 | void dmu_objset_init(void); |
240 | void dmu_objset_fini(void); | |
241 | ||
34dc7c2f BB |
242 | #ifdef __cplusplus |
243 | } | |
244 | #endif | |
245 | ||
246 | #endif /* _SYS_DMU_OBJSET_H */ |