1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* |
3 | * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. |
4 | * All Rights Reserved. |
5 | */ |
6 | #ifndef __XFS_ERROR_H__ |
7 | #define __XFS_ERROR_H__ |
8 | |
9 | struct xfs_mount; |
10 | |
11 | extern void xfs_error_report(const char *tag, int level, struct xfs_mount *mp, |
12 | const char *filename, int linenum, |
13 | xfs_failaddr_t failaddr); |
14 | extern void xfs_corruption_error(const char *tag, int level, |
15 | struct xfs_mount *mp, const void *buf, size_t bufsize, |
16 | const char *filename, int linenum, |
17 | xfs_failaddr_t failaddr); |
18 | void xfs_buf_corruption_error(struct xfs_buf *bp, xfs_failaddr_t fa); |
19 | extern void xfs_buf_verifier_error(struct xfs_buf *bp, int error, |
20 | const char *name, const void *buf, size_t bufsz, |
21 | xfs_failaddr_t failaddr); |
22 | extern void xfs_verifier_error(struct xfs_buf *bp, int error, |
23 | xfs_failaddr_t failaddr); |
24 | extern void xfs_inode_verifier_error(struct xfs_inode *ip, int error, |
25 | const char *name, const void *buf, size_t bufsz, |
26 | xfs_failaddr_t failaddr); |
27 | |
28 | #define XFS_ERROR_REPORT(e, lvl, mp) \ |
29 | xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address) |
30 | #define XFS_CORRUPTION_ERROR(e, lvl, mp, buf, bufsize) \ |
31 | xfs_corruption_error(e, lvl, mp, buf, bufsize, \ |
32 | __FILE__, __LINE__, __return_address) |
33 | |
34 | #define XFS_ERRLEVEL_OFF 0 |
35 | #define XFS_ERRLEVEL_LOW 1 |
36 | #define XFS_ERRLEVEL_HIGH 5 |
37 | |
38 | /* Dump 128 bytes of any corrupt buffer */ |
39 | #define XFS_CORRUPTION_DUMP_LEN (128) |
40 | |
41 | #ifdef DEBUG |
42 | extern int xfs_errortag_init(struct xfs_mount *mp); |
43 | extern void xfs_errortag_del(struct xfs_mount *mp); |
44 | extern bool xfs_errortag_test(struct xfs_mount *mp, const char *expression, |
45 | const char *file, int line, unsigned int error_tag); |
46 | #define XFS_TEST_ERROR(expr, mp, tag) \ |
47 | ((expr) || xfs_errortag_test((mp), #expr, __FILE__, __LINE__, (tag))) |
48 | bool xfs_errortag_enabled(struct xfs_mount *mp, unsigned int tag); |
49 | #define XFS_ERRORTAG_DELAY(mp, tag) \ |
50 | do { \ |
51 | might_sleep(); \ |
52 | if (!xfs_errortag_enabled((mp), (tag))) \ |
53 | break; \ |
54 | xfs_warn_ratelimited((mp), \ |
55 | "Injecting %ums delay at file %s, line %d, on filesystem \"%s\"", \ |
56 | (mp)->m_errortag[(tag)], __FILE__, __LINE__, \ |
57 | (mp)->m_super->s_id); \ |
58 | mdelay((mp)->m_errortag[(tag)]); \ |
59 | } while (0) |
60 | |
61 | extern int xfs_errortag_get(struct xfs_mount *mp, unsigned int error_tag); |
62 | extern int xfs_errortag_set(struct xfs_mount *mp, unsigned int error_tag, |
63 | unsigned int tag_value); |
64 | extern int xfs_errortag_add(struct xfs_mount *mp, unsigned int error_tag); |
65 | extern int xfs_errortag_clearall(struct xfs_mount *mp); |
66 | #else |
67 | #define xfs_errortag_init(mp) (0) |
68 | #define xfs_errortag_del(mp) |
69 | #define XFS_TEST_ERROR(expr, mp, tag) (expr) |
70 | #define XFS_ERRORTAG_DELAY(mp, tag) ((void)0) |
71 | #define xfs_errortag_set(mp, tag, val) (ENOSYS) |
72 | #define xfs_errortag_add(mp, tag) (ENOSYS) |
73 | #define xfs_errortag_clearall(mp) (ENOSYS) |
74 | #endif /* DEBUG */ |
75 | |
76 | /* |
77 | * XFS panic tags -- allow a call to xfs_alert_tag() be turned into |
78 | * a panic by setting fs.xfs.panic_mask in a sysctl. |
79 | */ |
80 | #define XFS_NO_PTAG 0u |
81 | #define XFS_PTAG_IFLUSH (1u << 0) |
82 | #define XFS_PTAG_LOGRES (1u << 1) |
83 | #define XFS_PTAG_AILDELETE (1u << 2) |
84 | #define XFS_PTAG_ERROR_REPORT (1u << 3) |
85 | #define XFS_PTAG_SHUTDOWN_CORRUPT (1u << 4) |
86 | #define XFS_PTAG_SHUTDOWN_IOERROR (1u << 5) |
87 | #define XFS_PTAG_SHUTDOWN_LOGERROR (1u << 6) |
88 | #define XFS_PTAG_FSBLOCK_ZERO (1u << 7) |
89 | #define XFS_PTAG_VERIFIER_ERROR (1u << 8) |
90 | |
91 | #define XFS_PTAG_MASK (XFS_PTAG_IFLUSH | \ |
92 | XFS_PTAG_LOGRES | \ |
93 | XFS_PTAG_AILDELETE | \ |
94 | XFS_PTAG_ERROR_REPORT | \ |
95 | XFS_PTAG_SHUTDOWN_CORRUPT | \ |
96 | XFS_PTAG_SHUTDOWN_IOERROR | \ |
97 | XFS_PTAG_SHUTDOWN_LOGERROR | \ |
98 | XFS_PTAG_FSBLOCK_ZERO | \ |
99 | XFS_PTAG_VERIFIER_ERROR) |
100 | |
101 | #define XFS_PTAG_STRINGS \ |
102 | { XFS_NO_PTAG, "none" }, \ |
103 | { XFS_PTAG_IFLUSH, "iflush" }, \ |
104 | { XFS_PTAG_LOGRES, "logres" }, \ |
105 | { XFS_PTAG_AILDELETE, "aildelete" }, \ |
106 | { XFS_PTAG_ERROR_REPORT , "error_report" }, \ |
107 | { XFS_PTAG_SHUTDOWN_CORRUPT, "corrupt" }, \ |
108 | { XFS_PTAG_SHUTDOWN_IOERROR, "ioerror" }, \ |
109 | { XFS_PTAG_SHUTDOWN_LOGERROR, "logerror" }, \ |
110 | { XFS_PTAG_FSBLOCK_ZERO, "fsb_zero" }, \ |
111 | { XFS_PTAG_VERIFIER_ERROR, "verifier" } |
112 | |
113 | #endif /* __XFS_ERROR_H__ */ |
114 | |