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1/*
2 * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
3 * All Rights Reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18#ifndef __XFS_ERROR_H__
19#define __XFS_ERROR_H__
20
21struct xfs_mount;
22
23extern void xfs_error_report(const char *tag, int level, struct xfs_mount *mp,
24 const char *filename, int linenum,
25 xfs_failaddr_t failaddr);
26extern void xfs_corruption_error(const char *tag, int level,
27 struct xfs_mount *mp, void *p, const char *filename,
28 int linenum, xfs_failaddr_t failaddr);
29extern void xfs_buf_verifier_error(struct xfs_buf *bp, int error,
30 const char *name, void *buf, size_t bufsz,
31 xfs_failaddr_t failaddr);
32extern void xfs_verifier_error(struct xfs_buf *bp, int error,
33 xfs_failaddr_t failaddr);
34extern void xfs_inode_verifier_error(struct xfs_inode *ip, int error,
35 const char *name, void *buf, size_t bufsz,
36 xfs_failaddr_t failaddr);
37
38#define XFS_ERROR_REPORT(e, lvl, mp) \
39 xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address)
40#define XFS_CORRUPTION_ERROR(e, lvl, mp, mem) \
41 xfs_corruption_error(e, lvl, mp, mem, \
42 __FILE__, __LINE__, __return_address)
43
44#define XFS_ERRLEVEL_OFF 0
45#define XFS_ERRLEVEL_LOW 1
46#define XFS_ERRLEVEL_HIGH 5
47
48/* Dump 128 bytes of any corrupt buffer */
49#define XFS_CORRUPTION_DUMP_LEN (128)
50
51/*
52 * Macros to set EFSCORRUPTED & return/branch.
53 */
54#define XFS_WANT_CORRUPTED_GOTO(mp, x, l) \
55 { \
56 int fs_is_ok = (x); \
57 ASSERT(fs_is_ok); \
58 if (unlikely(!fs_is_ok)) { \
59 XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_GOTO", \
60 XFS_ERRLEVEL_LOW, mp); \
61 error = -EFSCORRUPTED; \
62 goto l; \
63 } \
64 }
65
66#define XFS_WANT_CORRUPTED_RETURN(mp, x) \
67 { \
68 int fs_is_ok = (x); \
69 ASSERT(fs_is_ok); \
70 if (unlikely(!fs_is_ok)) { \
71 XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_RETURN", \
72 XFS_ERRLEVEL_LOW, mp); \
73 return -EFSCORRUPTED; \
74 } \
75 }
76
77#ifdef DEBUG
78extern int xfs_errortag_init(struct xfs_mount *mp);
79extern void xfs_errortag_del(struct xfs_mount *mp);
80extern bool xfs_errortag_test(struct xfs_mount *mp, const char *expression,
81 const char *file, int line, unsigned int error_tag);
82#define XFS_TEST_ERROR(expr, mp, tag) \
83 ((expr) || xfs_errortag_test((mp), #expr, __FILE__, __LINE__, (tag)))
84
85extern int xfs_errortag_get(struct xfs_mount *mp, unsigned int error_tag);
86extern int xfs_errortag_set(struct xfs_mount *mp, unsigned int error_tag,
87 unsigned int tag_value);
88extern int xfs_errortag_add(struct xfs_mount *mp, unsigned int error_tag);
89extern int xfs_errortag_clearall(struct xfs_mount *mp);
90#else
91#define xfs_errortag_init(mp) (0)
92#define xfs_errortag_del(mp)
93#define XFS_TEST_ERROR(expr, mp, tag) (expr)
94#define xfs_errortag_set(mp, tag, val) (ENOSYS)
95#define xfs_errortag_add(mp, tag) (ENOSYS)
96#define xfs_errortag_clearall(mp) (ENOSYS)
97#endif /* DEBUG */
98
99/*
100 * XFS panic tags -- allow a call to xfs_alert_tag() be turned into
101 * a panic by setting xfs_panic_mask in a sysctl.
102 */
103#define XFS_NO_PTAG 0
104#define XFS_PTAG_IFLUSH 0x00000001
105#define XFS_PTAG_LOGRES 0x00000002
106#define XFS_PTAG_AILDELETE 0x00000004
107#define XFS_PTAG_ERROR_REPORT 0x00000008
108#define XFS_PTAG_SHUTDOWN_CORRUPT 0x00000010
109#define XFS_PTAG_SHUTDOWN_IOERROR 0x00000020
110#define XFS_PTAG_SHUTDOWN_LOGERROR 0x00000040
111#define XFS_PTAG_FSBLOCK_ZERO 0x00000080
112
113#endif /* __XFS_ERROR_H__ */
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
11extern void xfs_error_report(const char *tag, int level, struct xfs_mount *mp,
12 const char *filename, int linenum,
13 xfs_failaddr_t failaddr);
14extern 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);
18void xfs_buf_corruption_error(struct xfs_buf *bp, xfs_failaddr_t fa);
19extern 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);
22extern void xfs_verifier_error(struct xfs_buf *bp, int error,
23 xfs_failaddr_t failaddr);
24extern 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
42extern int xfs_errortag_init(struct xfs_mount *mp);
43extern void xfs_errortag_del(struct xfs_mount *mp);
44extern 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)))
48bool 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
61extern int xfs_errortag_get(struct xfs_mount *mp, unsigned int error_tag);
62extern int xfs_errortag_set(struct xfs_mount *mp, unsigned int error_tag,
63 unsigned int tag_value);
64extern int xfs_errortag_add(struct xfs_mount *mp, unsigned int error_tag);
65extern 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__ */