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usr/src/uts/common/fs/zfs/ddt.c
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--- old/usr/src/uts/common/fs/zfs/sys/dmu_objset.h
+++ new/usr/src/uts/common/fs/zfs/sys/dmu_objset.h
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
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17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21 /*
22 22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 23 * Copyright (c) 2012, 2017 by Delphix. All rights reserved.
24 24 * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
25 25 * Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
26 26 * Copyright (c) 2014 Integros [integros.com]
27 + * Copyright 2016 Nexenta Systems, Inc. All rights reserved.
27 28 */
28 29
29 30 /* Portions Copyright 2010 Robert Milkowski */
30 31
31 32 #ifndef _SYS_DMU_OBJSET_H
32 33 #define _SYS_DMU_OBJSET_H
33 34
34 35 #include <sys/spa.h>
36 +#include <sys/special_impl.h>
35 37 #include <sys/arc.h>
36 38 #include <sys/txg.h>
37 39 #include <sys/zfs_context.h>
38 40 #include <sys/dnode.h>
39 41 #include <sys/zio.h>
40 42 #include <sys/zil.h>
41 43 #include <sys/sa.h>
44 +#include <sys/zfs_ioctl.h>
42 45
43 46 #ifdef __cplusplus
44 47 extern "C" {
45 48 #endif
46 49
47 50 extern krwlock_t os_lock;
48 51
49 52 struct dsl_pool;
50 53 struct dsl_dataset;
51 54 struct dmu_tx;
52 55
53 56 #define OBJSET_PHYS_SIZE 2048
54 57 #define OBJSET_OLD_PHYS_SIZE 1024
55 58
56 59 #define OBJSET_BUF_HAS_USERUSED(buf) \
57 60 (arc_buf_size(buf) > OBJSET_OLD_PHYS_SIZE)
58 61
59 62 #define OBJSET_FLAG_USERACCOUNTING_COMPLETE (1ULL<<0)
60 63
61 64 typedef struct objset_phys {
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62 65 dnode_phys_t os_meta_dnode;
63 66 zil_header_t os_zil_header;
64 67 uint64_t os_type;
65 68 uint64_t os_flags;
66 69 char os_pad[OBJSET_PHYS_SIZE - sizeof (dnode_phys_t)*3 -
67 70 sizeof (zil_header_t) - sizeof (uint64_t)*2];
68 71 dnode_phys_t os_userused_dnode;
69 72 dnode_phys_t os_groupused_dnode;
70 73 } objset_phys_t;
71 74
75 +#define OBJSET_PROP_UNINITIALIZED ((uint64_t)-1)
72 76 struct objset {
73 77 /* Immutable: */
74 78 struct dsl_dataset *os_dsl_dataset;
75 79 spa_t *os_spa;
76 80 arc_buf_t *os_phys_buf;
77 81 objset_phys_t *os_phys;
78 82 /*
79 83 * The following "special" dnodes have no parent, are exempt
80 84 * from dnode_move(), and are not recorded in os_dnodes, but they
81 85 * root their descendents in this objset using handles anyway, so
82 86 * that all access to dnodes from dbufs consistently uses handles.
83 87 */
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84 88 dnode_handle_t os_meta_dnode;
85 89 dnode_handle_t os_userused_dnode;
86 90 dnode_handle_t os_groupused_dnode;
87 91 zilog_t *os_zil;
88 92
89 93 list_node_t os_evicting_node;
90 94
91 95 /* can change, under dsl_dir's locks: */
92 96 enum zio_checksum os_checksum;
93 97 enum zio_compress os_compress;
98 + boolean_t os_smartcomp_enabled;
94 99 uint8_t os_copies;
95 100 enum zio_checksum os_dedup_checksum;
96 101 boolean_t os_dedup_verify;
97 102 zfs_logbias_op_t os_logbias;
98 103 zfs_cache_type_t os_primary_cache;
99 104 zfs_cache_type_t os_secondary_cache;
100 105 zfs_sync_type_t os_sync;
101 106 zfs_redundant_metadata_type_t os_redundant_metadata;
102 107 int os_recordsize;
108 + uint64_t os_zpl_meta_to_special;
109 + zfs_wbc_mode_t os_wbc_mode;
110 + uint64_t os_wbc_root_ds_obj;
111 + uint64_t os_wbc_off_txg;
112 + /*
113 + * The next four values are used as a cache of whatever's on disk, and
114 + * are initialized the first time these properties are queried. Before
115 + * being initialized with their real values, their values are
116 + * OBJSET_PROP_UNINITIALIZED.
117 + */
118 + uint64_t os_version;
119 + uint64_t os_normalization;
120 + uint64_t os_utf8only;
121 + uint64_t os_casesensitivity;
103 122
104 123 /*
105 124 * Pointer is constant; the blkptr it points to is protected by
106 125 * os_dsl_dataset->ds_bp_rwlock
107 126 */
108 127 blkptr_t *os_rootbp;
109 128
110 129 /* no lock needed: */
111 130 struct dmu_tx *os_synctx; /* XXX sketchy */
112 131 zil_header_t os_zil_header;
113 132 multilist_t *os_synced_dnodes;
114 133 uint64_t os_flags;
115 134 uint64_t os_freed_dnodes;
116 135 boolean_t os_rescan_dnodes;
117 136
118 137 /* Protected by os_obj_lock */
119 138 kmutex_t os_obj_lock;
120 139 uint64_t os_obj_next;
121 140
122 141 /* Protected by os_lock */
123 142 kmutex_t os_lock;
124 143 multilist_t *os_dirty_dnodes[TXG_SIZE];
125 144 list_t os_dnodes;
126 145 list_t os_downgraded_dbufs;
127 146
128 147 /* Protects changes to DMU_{USER,GROUP}USED_OBJECT */
129 148 kmutex_t os_userused_lock;
130 149
131 150 /* stuff we store for the user */
132 151 kmutex_t os_user_ptr_lock;
133 152 void *os_user_ptr;
134 153 sa_os_t *os_sa;
135 154 };
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136 155
137 156 #define DMU_META_OBJSET 0
138 157 #define DMU_META_DNODE_OBJECT 0
139 158 #define DMU_OBJECT_IS_SPECIAL(obj) ((int64_t)(obj) <= 0)
140 159 #define DMU_META_DNODE(os) ((os)->os_meta_dnode.dnh_dnode)
141 160 #define DMU_USERUSED_DNODE(os) ((os)->os_userused_dnode.dnh_dnode)
142 161 #define DMU_GROUPUSED_DNODE(os) ((os)->os_groupused_dnode.dnh_dnode)
143 162
144 163 #define DMU_OS_IS_L2CACHEABLE(os) \
145 164 ((os)->os_secondary_cache == ZFS_CACHE_ALL || \
146 - (os)->os_secondary_cache == ZFS_CACHE_METADATA)
165 + (os)->os_secondary_cache == ZFS_CACHE_METADATA || \
166 + (os)->os_secondary_cache == ZFS_CACHE_DATA)
147 167
148 168 #define DMU_OS_IS_L2COMPRESSIBLE(os) (zfs_mdcomp_disable == B_FALSE)
149 169
150 170 /* called from zpl */
151 171 int dmu_objset_hold(const char *name, void *tag, objset_t **osp);
152 172 int dmu_objset_own(const char *name, dmu_objset_type_t type,
153 173 boolean_t readonly, void *tag, objset_t **osp);
154 174 int dmu_objset_own_obj(struct dsl_pool *dp, uint64_t obj,
155 175 dmu_objset_type_t type, boolean_t readonly, void *tag, objset_t **osp);
156 176 void dmu_objset_refresh_ownership(objset_t *os, void *tag);
157 177 void dmu_objset_rele(objset_t *os, void *tag);
158 178 void dmu_objset_disown(objset_t *os, void *tag);
159 179 int dmu_objset_from_ds(struct dsl_dataset *ds, objset_t **osp);
160 180
161 181 void dmu_objset_stats(objset_t *os, nvlist_t *nv);
162 182 void dmu_objset_fast_stat(objset_t *os, dmu_objset_stats_t *stat);
163 183 void dmu_objset_space(objset_t *os, uint64_t *refdbytesp, uint64_t *availbytesp,
164 184 uint64_t *usedobjsp, uint64_t *availobjsp);
165 185 uint64_t dmu_objset_fsid_guid(objset_t *os);
166 186 int dmu_objset_find_dp(struct dsl_pool *dp, uint64_t ddobj,
167 187 int func(struct dsl_pool *, struct dsl_dataset *, void *),
168 188 void *arg, int flags);
169 189 int dmu_objset_prefetch(const char *name, void *arg);
170 190 void dmu_objset_evict_dbufs(objset_t *os);
171 191 timestruc_t dmu_objset_snap_cmtime(objset_t *os);
172 192
173 193 /* called from dsl */
174 194 void dmu_objset_sync(objset_t *os, zio_t *zio, dmu_tx_t *tx);
175 195 boolean_t dmu_objset_is_dirty(objset_t *os, uint64_t txg);
176 196 objset_t *dmu_objset_create_impl(spa_t *spa, struct dsl_dataset *ds,
177 197 blkptr_t *bp, dmu_objset_type_t type, dmu_tx_t *tx);
178 198 int dmu_objset_open_impl(spa_t *spa, struct dsl_dataset *ds, blkptr_t *bp,
179 199 objset_t **osp);
180 200 void dmu_objset_evict(objset_t *os);
181 201 void dmu_objset_do_userquota_updates(objset_t *os, dmu_tx_t *tx);
182 202 void dmu_objset_userquota_get_ids(dnode_t *dn, boolean_t before, dmu_tx_t *tx);
183 203 boolean_t dmu_objset_userused_enabled(objset_t *os);
184 204 int dmu_objset_userspace_upgrade(objset_t *os);
185 205 boolean_t dmu_objset_userspace_present(objset_t *os);
186 206 int dmu_fsname(const char *snapname, char *buf);
187 207
188 208 void dmu_objset_evict_done(objset_t *os);
189 209 void dmu_objset_willuse_space(objset_t *os, int64_t space, dmu_tx_t *tx);
190 210
191 211 void dmu_objset_init(void);
192 212 void dmu_objset_fini(void);
193 213
194 214 #ifdef __cplusplus
195 215 }
196 216 #endif
197 217
198 218 #endif /* _SYS_DMU_OBJSET_H */
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