1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
/*
* Copyright (C) 2017 Oracle. All Rights Reserved.
*
* Author: Darrick J. Wong <darrick.wong@oracle.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it would be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __XFS_SCRUB_SCRUB_H__
#define __XFS_SCRUB_SCRUB_H__
struct xfs_scrub_context;
/* Type info and names for the scrub types. */
enum xfs_scrub_type {
ST_NONE = 1, /* disabled */
ST_PERAG, /* per-AG metadata */
ST_FS, /* per-FS metadata */
ST_INODE, /* per-inode metadata */
};
struct xfs_scrub_meta_ops {
/* Acquire whatever resources are needed for the operation. */
int (*setup)(struct xfs_scrub_context *,
struct xfs_inode *);
/* Examine metadata for errors. */
int (*scrub)(struct xfs_scrub_context *);
/* Repair or optimize the metadata. */
int (*repair)(struct xfs_scrub_context *);
/* Decide if we even have this piece of metadata. */
bool (*has)(struct xfs_sb *);
/* type describing required/allowed inputs */
enum xfs_scrub_type type;
};
/* Buffer pointers and btree cursors for an entire AG. */
struct xfs_scrub_ag {
xfs_agnumber_t agno;
/* AG btree roots */
struct xfs_buf *agf_bp;
struct xfs_buf *agfl_bp;
struct xfs_buf *agi_bp;
/* AG btrees */
struct xfs_btree_cur *bno_cur;
struct xfs_btree_cur *cnt_cur;
struct xfs_btree_cur *ino_cur;
struct xfs_btree_cur *fino_cur;
struct xfs_btree_cur *rmap_cur;
struct xfs_btree_cur *refc_cur;
};
struct xfs_scrub_context {
/* General scrub state. */
struct xfs_mount *mp;
struct xfs_scrub_metadata *sm;
const struct xfs_scrub_meta_ops *ops;
struct xfs_trans *tp;
struct xfs_inode *ip;
void *buf;
uint ilock_flags;
bool try_harder;
bool has_quotaofflock;
/* State tracking for single-AG operations. */
struct xfs_scrub_ag sa;
};
/* Metadata scrubbers */
int xfs_scrub_tester(struct xfs_scrub_context *sc);
int xfs_scrub_superblock(struct xfs_scrub_context *sc);
int xfs_scrub_agf(struct xfs_scrub_context *sc);
int xfs_scrub_agfl(struct xfs_scrub_context *sc);
int xfs_scrub_agi(struct xfs_scrub_context *sc);
int xfs_scrub_bnobt(struct xfs_scrub_context *sc);
int xfs_scrub_cntbt(struct xfs_scrub_context *sc);
int xfs_scrub_inobt(struct xfs_scrub_context *sc);
int xfs_scrub_finobt(struct xfs_scrub_context *sc);
int xfs_scrub_rmapbt(struct xfs_scrub_context *sc);
int xfs_scrub_refcountbt(struct xfs_scrub_context *sc);
int xfs_scrub_inode(struct xfs_scrub_context *sc);
int xfs_scrub_bmap_data(struct xfs_scrub_context *sc);
int xfs_scrub_bmap_attr(struct xfs_scrub_context *sc);
int xfs_scrub_bmap_cow(struct xfs_scrub_context *sc);
int xfs_scrub_directory(struct xfs_scrub_context *sc);
int xfs_scrub_xattr(struct xfs_scrub_context *sc);
int xfs_scrub_symlink(struct xfs_scrub_context *sc);
int xfs_scrub_parent(struct xfs_scrub_context *sc);
#ifdef CONFIG_XFS_RT
int xfs_scrub_rtbitmap(struct xfs_scrub_context *sc);
int xfs_scrub_rtsummary(struct xfs_scrub_context *sc);
#else
static inline int
xfs_scrub_rtbitmap(struct xfs_scrub_context *sc)
{
return -ENOENT;
}
static inline int
xfs_scrub_rtsummary(struct xfs_scrub_context *sc)
{
return -ENOENT;
}
#endif
#ifdef CONFIG_XFS_QUOTA
int xfs_scrub_quota(struct xfs_scrub_context *sc);
#else
static inline int
xfs_scrub_quota(struct xfs_scrub_context *sc)
{
return -ENOENT;
}
#endif
/* cross-referencing helpers */
void xfs_scrub_xref_is_used_space(struct xfs_scrub_context *sc,
xfs_agblock_t agbno, xfs_extlen_t len);
void xfs_scrub_xref_is_not_inode_chunk(struct xfs_scrub_context *sc,
xfs_agblock_t agbno, xfs_extlen_t len);
void xfs_scrub_xref_is_inode_chunk(struct xfs_scrub_context *sc,
xfs_agblock_t agbno, xfs_extlen_t len);
void xfs_scrub_xref_is_owned_by(struct xfs_scrub_context *sc,
xfs_agblock_t agbno, xfs_extlen_t len,
struct xfs_owner_info *oinfo);
void xfs_scrub_xref_is_not_owned_by(struct xfs_scrub_context *sc,
xfs_agblock_t agbno, xfs_extlen_t len,
struct xfs_owner_info *oinfo);
void xfs_scrub_xref_has_no_owner(struct xfs_scrub_context *sc,
xfs_agblock_t agbno, xfs_extlen_t len);
void xfs_scrub_xref_is_cow_staging(struct xfs_scrub_context *sc,
xfs_agblock_t bno, xfs_extlen_t len);
void xfs_scrub_xref_is_not_shared(struct xfs_scrub_context *sc,
xfs_agblock_t bno, xfs_extlen_t len);
#ifdef CONFIG_XFS_RT
void xfs_scrub_xref_is_used_rt_space(struct xfs_scrub_context *sc,
xfs_rtblock_t rtbno, xfs_extlen_t len);
#else
# define xfs_scrub_xref_is_used_rt_space(sc, rtbno, len) do { } while (0)
#endif
#endif /* __XFS_SCRUB_SCRUB_H__ */
|
