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

source code of linux/fs/xfs/xfs_error.h