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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
21#ifdef DEBUG
22#define XFS_ERROR_NTRAP 10
23extern int xfs_etrap[XFS_ERROR_NTRAP];
24extern int xfs_error_trap(int);
25#define XFS_ERROR(e) xfs_error_trap(e)
26#else
27#define XFS_ERROR(e) (e)
28#endif
29
30struct xfs_mount;
31
32extern void xfs_error_report(const char *tag, int level, struct xfs_mount *mp,
33 const char *filename, int linenum, inst_t *ra);
34extern void xfs_corruption_error(const char *tag, int level,
35 struct xfs_mount *mp, void *p, const char *filename,
36 int linenum, inst_t *ra);
37extern void xfs_verifier_error(struct xfs_buf *bp);
38
39#define XFS_ERROR_REPORT(e, lvl, mp) \
40 xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address)
41#define XFS_CORRUPTION_ERROR(e, lvl, mp, mem) \
42 xfs_corruption_error(e, lvl, mp, mem, \
43 __FILE__, __LINE__, __return_address)
44
45#define XFS_ERRLEVEL_OFF 0
46#define XFS_ERRLEVEL_LOW 1
47#define XFS_ERRLEVEL_HIGH 5
48
49/*
50 * Macros to set EFSCORRUPTED & return/branch.
51 */
52#define XFS_WANT_CORRUPTED_GOTO(x,l) \
53 { \
54 int fs_is_ok = (x); \
55 ASSERT(fs_is_ok); \
56 if (unlikely(!fs_is_ok)) { \
57 XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_GOTO", \
58 XFS_ERRLEVEL_LOW, NULL); \
59 error = XFS_ERROR(EFSCORRUPTED); \
60 goto l; \
61 } \
62 }
63
64#define XFS_WANT_CORRUPTED_RETURN(x) \
65 { \
66 int fs_is_ok = (x); \
67 ASSERT(fs_is_ok); \
68 if (unlikely(!fs_is_ok)) { \
69 XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_RETURN", \
70 XFS_ERRLEVEL_LOW, NULL); \
71 return XFS_ERROR(EFSCORRUPTED); \
72 } \
73 }
74
75/*
76 * error injection tags - the labels can be anything you want
77 * but each tag should have its own unique number
78 */
79
80#define XFS_ERRTAG_NOERROR 0
81#define XFS_ERRTAG_IFLUSH_1 1
82#define XFS_ERRTAG_IFLUSH_2 2
83#define XFS_ERRTAG_IFLUSH_3 3
84#define XFS_ERRTAG_IFLUSH_4 4
85#define XFS_ERRTAG_IFLUSH_5 5
86#define XFS_ERRTAG_IFLUSH_6 6
87#define XFS_ERRTAG_DA_READ_BUF 7
88#define XFS_ERRTAG_BTREE_CHECK_LBLOCK 8
89#define XFS_ERRTAG_BTREE_CHECK_SBLOCK 9
90#define XFS_ERRTAG_ALLOC_READ_AGF 10
91#define XFS_ERRTAG_IALLOC_READ_AGI 11
92#define XFS_ERRTAG_ITOBP_INOTOBP 12
93#define XFS_ERRTAG_IUNLINK 13
94#define XFS_ERRTAG_IUNLINK_REMOVE 14
95#define XFS_ERRTAG_DIR_INO_VALIDATE 15
96#define XFS_ERRTAG_BULKSTAT_READ_CHUNK 16
97#define XFS_ERRTAG_IODONE_IOERR 17
98#define XFS_ERRTAG_STRATREAD_IOERR 18
99#define XFS_ERRTAG_STRATCMPL_IOERR 19
100#define XFS_ERRTAG_DIOWRITE_IOERR 20
101#define XFS_ERRTAG_BMAPIFORMAT 21
102#define XFS_ERRTAG_MAX 22
103
104/*
105 * Random factors for above tags, 1 means always, 2 means 1/2 time, etc.
106 */
107#define XFS_RANDOM_DEFAULT 100
108#define XFS_RANDOM_IFLUSH_1 XFS_RANDOM_DEFAULT
109#define XFS_RANDOM_IFLUSH_2 XFS_RANDOM_DEFAULT
110#define XFS_RANDOM_IFLUSH_3 XFS_RANDOM_DEFAULT
111#define XFS_RANDOM_IFLUSH_4 XFS_RANDOM_DEFAULT
112#define XFS_RANDOM_IFLUSH_5 XFS_RANDOM_DEFAULT
113#define XFS_RANDOM_IFLUSH_6 XFS_RANDOM_DEFAULT
114#define XFS_RANDOM_DA_READ_BUF XFS_RANDOM_DEFAULT
115#define XFS_RANDOM_BTREE_CHECK_LBLOCK (XFS_RANDOM_DEFAULT/4)
116#define XFS_RANDOM_BTREE_CHECK_SBLOCK XFS_RANDOM_DEFAULT
117#define XFS_RANDOM_ALLOC_READ_AGF XFS_RANDOM_DEFAULT
118#define XFS_RANDOM_IALLOC_READ_AGI XFS_RANDOM_DEFAULT
119#define XFS_RANDOM_ITOBP_INOTOBP XFS_RANDOM_DEFAULT
120#define XFS_RANDOM_IUNLINK XFS_RANDOM_DEFAULT
121#define XFS_RANDOM_IUNLINK_REMOVE XFS_RANDOM_DEFAULT
122#define XFS_RANDOM_DIR_INO_VALIDATE XFS_RANDOM_DEFAULT
123#define XFS_RANDOM_BULKSTAT_READ_CHUNK XFS_RANDOM_DEFAULT
124#define XFS_RANDOM_IODONE_IOERR (XFS_RANDOM_DEFAULT/10)
125#define XFS_RANDOM_STRATREAD_IOERR (XFS_RANDOM_DEFAULT/10)
126#define XFS_RANDOM_STRATCMPL_IOERR (XFS_RANDOM_DEFAULT/10)
127#define XFS_RANDOM_DIOWRITE_IOERR (XFS_RANDOM_DEFAULT/10)
128#define XFS_RANDOM_BMAPIFORMAT XFS_RANDOM_DEFAULT
129
130#ifdef DEBUG
131extern int xfs_error_test_active;
132extern int xfs_error_test(int, int *, char *, int, char *, unsigned long);
133
134#define XFS_NUM_INJECT_ERROR 10
135#define XFS_TEST_ERROR(expr, mp, tag, rf) \
136 ((expr) || (xfs_error_test_active && \
137 xfs_error_test((tag), (mp)->m_fixedfsid, "expr", __LINE__, __FILE__, \
138 (rf))))
139
140extern int xfs_errortag_add(int error_tag, struct xfs_mount *mp);
141extern int xfs_errortag_clearall(struct xfs_mount *mp, int loud);
142#else
143#define XFS_TEST_ERROR(expr, mp, tag, rf) (expr)
144#define xfs_errortag_add(tag, mp) (ENOSYS)
145#define xfs_errortag_clearall(mp, loud) (ENOSYS)
146#endif /* DEBUG */
147
148/*
149 * XFS panic tags -- allow a call to xfs_alert_tag() be turned into
150 * a panic by setting xfs_panic_mask in a sysctl.
151 */
152#define XFS_NO_PTAG 0
153#define XFS_PTAG_IFLUSH 0x00000001
154#define XFS_PTAG_LOGRES 0x00000002
155#define XFS_PTAG_AILDELETE 0x00000004
156#define XFS_PTAG_ERROR_REPORT 0x00000008
157#define XFS_PTAG_SHUTDOWN_CORRUPT 0x00000010
158#define XFS_PTAG_SHUTDOWN_IOERROR 0x00000020
159#define XFS_PTAG_SHUTDOWN_LOGERROR 0x00000040
160#define XFS_PTAG_FSBLOCK_ZERO 0x00000080
161
162#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__ */