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2619 asynchronous destruction of ZFS file systems
2747 SPA versioning with zfs feature flags
Reviewed by: Matt Ahrens <mahrens@delphix.com>
Reviewed by: George Wilson <gwilson@delphix.com>
Reviewed by: Richard Lowe <richlowe@richlowe.net>
Reviewed by: Dan Kruchinin <dan.kruchinin@gmail.com>
Approved by: Dan McDonald <danmcd@nexenta.com>
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--- old/usr/src/uts/common/fs/zfs/sys/vdev.h
+++ new/usr/src/uts/common/fs/zfs/sys/vdev.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
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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
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 +
21 22 /*
22 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 24 * Copyright (c) 2012 by Delphix. All rights reserved.
24 25 */
25 26
26 27 #ifndef _SYS_VDEV_H
27 28 #define _SYS_VDEV_H
28 29
29 30 #include <sys/spa.h>
30 31 #include <sys/zio.h>
31 32 #include <sys/dmu.h>
32 33 #include <sys/space_map.h>
33 34 #include <sys/fs/zfs.h>
34 35
35 36 #ifdef __cplusplus
36 37 extern "C" {
37 38 #endif
38 39
39 40 typedef enum vdev_dtl_type {
40 41 DTL_MISSING, /* 0% replication: no copies of the data */
41 42 DTL_PARTIAL, /* less than 100% replication: some copies missing */
42 43 DTL_SCRUB, /* unable to fully repair during scrub/resilver */
43 44 DTL_OUTAGE, /* temporarily missing (used to attempt detach) */
44 45 DTL_TYPES
45 46 } vdev_dtl_type_t;
46 47
47 48 extern boolean_t zfs_nocacheflush;
48 49
49 50 extern int vdev_open(vdev_t *);
50 51 extern void vdev_open_children(vdev_t *);
51 52 extern boolean_t vdev_uses_zvols(vdev_t *);
52 53 extern int vdev_validate(vdev_t *, boolean_t);
53 54 extern void vdev_close(vdev_t *);
54 55 extern int vdev_create(vdev_t *, uint64_t txg, boolean_t isreplace);
55 56 extern void vdev_reopen(vdev_t *);
56 57 extern int vdev_validate_aux(vdev_t *vd);
57 58 extern zio_t *vdev_probe(vdev_t *vd, zio_t *pio);
58 59
59 60 extern boolean_t vdev_is_bootable(vdev_t *vd);
60 61 extern vdev_t *vdev_lookup_top(spa_t *spa, uint64_t vdev);
61 62 extern vdev_t *vdev_lookup_by_guid(vdev_t *vd, uint64_t guid);
62 63 extern void vdev_dtl_dirty(vdev_t *vd, vdev_dtl_type_t d,
63 64 uint64_t txg, uint64_t size);
64 65 extern boolean_t vdev_dtl_contains(vdev_t *vd, vdev_dtl_type_t d,
65 66 uint64_t txg, uint64_t size);
66 67 extern boolean_t vdev_dtl_empty(vdev_t *vd, vdev_dtl_type_t d);
67 68 extern void vdev_dtl_reassess(vdev_t *vd, uint64_t txg, uint64_t scrub_txg,
68 69 int scrub_done);
69 70 extern boolean_t vdev_dtl_required(vdev_t *vd);
70 71 extern boolean_t vdev_resilver_needed(vdev_t *vd,
71 72 uint64_t *minp, uint64_t *maxp);
72 73
73 74 extern void vdev_hold(vdev_t *);
74 75 extern void vdev_rele(vdev_t *);
75 76
76 77 extern int vdev_metaslab_init(vdev_t *vd, uint64_t txg);
77 78 extern void vdev_metaslab_fini(vdev_t *vd);
78 79 extern void vdev_metaslab_set_size(vdev_t *);
79 80 extern void vdev_expand(vdev_t *vd, uint64_t txg);
80 81 extern void vdev_split(vdev_t *vd);
81 82
82 83
83 84 extern void vdev_get_stats(vdev_t *vd, vdev_stat_t *vs);
84 85 extern void vdev_clear_stats(vdev_t *vd);
85 86 extern void vdev_stat_update(zio_t *zio, uint64_t psize);
86 87 extern void vdev_scan_stat_init(vdev_t *vd);
87 88 extern void vdev_propagate_state(vdev_t *vd);
88 89 extern void vdev_set_state(vdev_t *vd, boolean_t isopen, vdev_state_t state,
89 90 vdev_aux_t aux);
90 91
91 92 extern void vdev_space_update(vdev_t *vd,
92 93 int64_t alloc_delta, int64_t defer_delta, int64_t space_delta);
93 94
94 95 extern uint64_t vdev_psize_to_asize(vdev_t *vd, uint64_t psize);
95 96
96 97 extern int vdev_fault(spa_t *spa, uint64_t guid, vdev_aux_t aux);
97 98 extern int vdev_degrade(spa_t *spa, uint64_t guid, vdev_aux_t aux);
98 99 extern int vdev_online(spa_t *spa, uint64_t guid, uint64_t flags,
99 100 vdev_state_t *);
100 101 extern int vdev_offline(spa_t *spa, uint64_t guid, uint64_t flags);
101 102 extern void vdev_clear(spa_t *spa, vdev_t *vd);
102 103
103 104 extern boolean_t vdev_is_dead(vdev_t *vd);
104 105 extern boolean_t vdev_readable(vdev_t *vd);
105 106 extern boolean_t vdev_writeable(vdev_t *vd);
106 107 extern boolean_t vdev_allocatable(vdev_t *vd);
107 108 extern boolean_t vdev_accessible(vdev_t *vd, zio_t *zio);
108 109
109 110 extern void vdev_cache_init(vdev_t *vd);
110 111 extern void vdev_cache_fini(vdev_t *vd);
111 112 extern int vdev_cache_read(zio_t *zio);
112 113 extern void vdev_cache_write(zio_t *zio);
113 114 extern void vdev_cache_purge(vdev_t *vd);
114 115
115 116 extern void vdev_queue_init(vdev_t *vd);
116 117 extern void vdev_queue_fini(vdev_t *vd);
117 118 extern zio_t *vdev_queue_io(zio_t *zio);
118 119 extern void vdev_queue_io_done(zio_t *zio);
119 120
120 121 extern void vdev_config_dirty(vdev_t *vd);
121 122 extern void vdev_config_clean(vdev_t *vd);
122 123 extern int vdev_config_sync(vdev_t **svd, int svdcount, uint64_t txg,
123 124 boolean_t);
124 125
125 126 extern void vdev_state_dirty(vdev_t *vd);
126 127 extern void vdev_state_clean(vdev_t *vd);
127 128
128 129 typedef enum vdev_config_flag {
129 130 VDEV_CONFIG_SPARE = 1 << 0,
130 131 VDEV_CONFIG_L2CACHE = 1 << 1,
131 132 VDEV_CONFIG_REMOVING = 1 << 2
132 133 } vdev_config_flag_t;
133 134
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134 135 extern void vdev_top_config_generate(spa_t *spa, nvlist_t *config);
135 136 extern nvlist_t *vdev_config_generate(spa_t *spa, vdev_t *vd,
136 137 boolean_t getstats, vdev_config_flag_t flags);
137 138
138 139 /*
139 140 * Label routines
140 141 */
141 142 struct uberblock;
142 143 extern uint64_t vdev_label_offset(uint64_t psize, int l, uint64_t offset);
143 144 extern int vdev_label_number(uint64_t psise, uint64_t offset);
144 -extern nvlist_t *vdev_label_read_config(vdev_t *vd);
145 -extern void vdev_uberblock_load(zio_t *zio, vdev_t *vd, struct uberblock *ub);
145 +extern nvlist_t *vdev_label_read_config(vdev_t *vd, int label);
146 +extern void vdev_uberblock_load(vdev_t *, struct uberblock *, nvlist_t **);
146 147
147 148 typedef enum {
148 149 VDEV_LABEL_CREATE, /* create/add a new device */
149 150 VDEV_LABEL_REPLACE, /* replace an existing device */
150 151 VDEV_LABEL_SPARE, /* add a new hot spare */
151 152 VDEV_LABEL_REMOVE, /* remove an existing device */
152 153 VDEV_LABEL_L2CACHE, /* add an L2ARC cache device */
153 154 VDEV_LABEL_SPLIT /* generating new label for split-off dev */
154 155 } vdev_labeltype_t;
155 156
156 157 extern int vdev_label_init(vdev_t *vd, uint64_t txg, vdev_labeltype_t reason);
157 158
158 159 #ifdef __cplusplus
159 160 }
160 161 #endif
161 162
162 163 #endif /* _SYS_VDEV_H */
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