1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) 2017 Oracle. All Rights Reserved.
4 * Author: Darrick J. Wong <darrick.wong@oracle.com>
5 */
6 #ifndef __XFS_SCRUB_COMMON_H__
7 #define __XFS_SCRUB_COMMON_H__
8
9 /*
10 * We /could/ terminate a scrub/repair operation early. If we're not
11 * in a good place to continue (fatal signal, etc.) then bail out.
12 * Note that we're careful not to make any judgements about *error.
13 */
14 static inline bool
xchk_should_terminate(struct xfs_scrub * sc,int * error)15 xchk_should_terminate(
16 struct xfs_scrub *sc,
17 int *error)
18 {
19 if (fatal_signal_pending(current)) {
20 if (*error == 0)
21 *error = -EAGAIN;
22 return true;
23 }
24 return false;
25 }
26
27 int xchk_trans_alloc(struct xfs_scrub *sc, uint resblks);
28 bool xchk_process_error(struct xfs_scrub *sc, xfs_agnumber_t agno,
29 xfs_agblock_t bno, int *error);
30 bool xchk_fblock_process_error(struct xfs_scrub *sc, int whichfork,
31 xfs_fileoff_t offset, int *error);
32
33 bool xchk_xref_process_error(struct xfs_scrub *sc,
34 xfs_agnumber_t agno, xfs_agblock_t bno, int *error);
35 bool xchk_fblock_xref_process_error(struct xfs_scrub *sc,
36 int whichfork, xfs_fileoff_t offset, int *error);
37
38 void xchk_block_set_preen(struct xfs_scrub *sc,
39 struct xfs_buf *bp);
40 void xchk_ino_set_preen(struct xfs_scrub *sc, xfs_ino_t ino);
41
42 void xchk_block_set_corrupt(struct xfs_scrub *sc,
43 struct xfs_buf *bp);
44 void xchk_ino_set_corrupt(struct xfs_scrub *sc, xfs_ino_t ino);
45 void xchk_fblock_set_corrupt(struct xfs_scrub *sc, int whichfork,
46 xfs_fileoff_t offset);
47
48 void xchk_block_xref_set_corrupt(struct xfs_scrub *sc,
49 struct xfs_buf *bp);
50 void xchk_ino_xref_set_corrupt(struct xfs_scrub *sc,
51 xfs_ino_t ino);
52 void xchk_fblock_xref_set_corrupt(struct xfs_scrub *sc,
53 int whichfork, xfs_fileoff_t offset);
54
55 void xchk_ino_set_warning(struct xfs_scrub *sc, xfs_ino_t ino);
56 void xchk_fblock_set_warning(struct xfs_scrub *sc, int whichfork,
57 xfs_fileoff_t offset);
58
59 void xchk_set_incomplete(struct xfs_scrub *sc);
60 int xchk_checkpoint_log(struct xfs_mount *mp);
61
62 /* Are we set up for a cross-referencing check? */
63 bool xchk_should_check_xref(struct xfs_scrub *sc, int *error,
64 struct xfs_btree_cur **curpp);
65
66 /* Setup functions */
67 int xchk_setup_fs(struct xfs_scrub *sc, struct xfs_inode *ip);
68 int xchk_setup_ag_allocbt(struct xfs_scrub *sc,
69 struct xfs_inode *ip);
70 int xchk_setup_ag_iallocbt(struct xfs_scrub *sc,
71 struct xfs_inode *ip);
72 int xchk_setup_ag_rmapbt(struct xfs_scrub *sc,
73 struct xfs_inode *ip);
74 int xchk_setup_ag_refcountbt(struct xfs_scrub *sc,
75 struct xfs_inode *ip);
76 int xchk_setup_inode(struct xfs_scrub *sc,
77 struct xfs_inode *ip);
78 int xchk_setup_inode_bmap(struct xfs_scrub *sc,
79 struct xfs_inode *ip);
80 int xchk_setup_inode_bmap_data(struct xfs_scrub *sc,
81 struct xfs_inode *ip);
82 int xchk_setup_directory(struct xfs_scrub *sc,
83 struct xfs_inode *ip);
84 int xchk_setup_xattr(struct xfs_scrub *sc,
85 struct xfs_inode *ip);
86 int xchk_setup_symlink(struct xfs_scrub *sc,
87 struct xfs_inode *ip);
88 int xchk_setup_parent(struct xfs_scrub *sc,
89 struct xfs_inode *ip);
90 #ifdef CONFIG_XFS_RT
91 int xchk_setup_rt(struct xfs_scrub *sc, struct xfs_inode *ip);
92 #else
93 static inline int
xchk_setup_rt(struct xfs_scrub * sc,struct xfs_inode * ip)94 xchk_setup_rt(struct xfs_scrub *sc, struct xfs_inode *ip)
95 {
96 return -ENOENT;
97 }
98 #endif
99 #ifdef CONFIG_XFS_QUOTA
100 int xchk_setup_quota(struct xfs_scrub *sc, struct xfs_inode *ip);
101 #else
102 static inline int
xchk_setup_quota(struct xfs_scrub * sc,struct xfs_inode * ip)103 xchk_setup_quota(struct xfs_scrub *sc, struct xfs_inode *ip)
104 {
105 return -ENOENT;
106 }
107 #endif
108
109 void xchk_ag_free(struct xfs_scrub *sc, struct xchk_ag *sa);
110 int xchk_ag_init(struct xfs_scrub *sc, xfs_agnumber_t agno,
111 struct xchk_ag *sa);
112 void xchk_perag_get(struct xfs_mount *mp, struct xchk_ag *sa);
113 int xchk_ag_read_headers(struct xfs_scrub *sc, xfs_agnumber_t agno,
114 struct xfs_buf **agi, struct xfs_buf **agf,
115 struct xfs_buf **agfl);
116 void xchk_ag_btcur_free(struct xchk_ag *sa);
117 int xchk_ag_btcur_init(struct xfs_scrub *sc, struct xchk_ag *sa);
118 int xchk_count_rmap_ownedby_ag(struct xfs_scrub *sc, struct xfs_btree_cur *cur,
119 struct xfs_owner_info *oinfo, xfs_filblks_t *blocks);
120
121 int xchk_setup_ag_btree(struct xfs_scrub *sc, struct xfs_inode *ip,
122 bool force_log);
123 int xchk_get_inode(struct xfs_scrub *sc, struct xfs_inode *ip_in);
124 int xchk_setup_inode_contents(struct xfs_scrub *sc, struct xfs_inode *ip,
125 unsigned int resblks);
126 void xchk_buffer_recheck(struct xfs_scrub *sc, struct xfs_buf *bp);
127
128 /*
129 * Don't bother cross-referencing if we already found corruption or cross
130 * referencing discrepancies.
131 */
xchk_skip_xref(struct xfs_scrub_metadata * sm)132 static inline bool xchk_skip_xref(struct xfs_scrub_metadata *sm)
133 {
134 return sm->sm_flags & (XFS_SCRUB_OFLAG_CORRUPT |
135 XFS_SCRUB_OFLAG_XCORRUPT);
136 }
137
138 int xchk_metadata_inode_forks(struct xfs_scrub *sc);
139 int xchk_ilock_inverted(struct xfs_inode *ip, uint lock_mode);
140
141 #endif /* __XFS_SCRUB_COMMON_H__ */
142
