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
23 extern int xfs_etrap[XFS_ERROR_NTRAP];
24 extern 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
30 struct xfs_mount;
31
32 extern void xfs_error_report(char *tag, int level, struct xfs_mount *mp,
33 char *fname, int linenum, inst_t *ra);
34 extern void xfs_corruption_error(char *tag, int level, struct xfs_mount *mp,
35 void *p, char *fname, int linenum, inst_t *ra);
36
37 #define XFS_ERROR_REPORT(e, lvl, mp) \
38 xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address)
39 #define XFS_CORRUPTION_ERROR(e, lvl, mp, mem) \
40 xfs_corruption_error(e, lvl, mp, mem, \
41 __FILE__, __LINE__, __return_address)
42
43 #define XFS_ERRLEVEL_OFF 0
44 #define XFS_ERRLEVEL_LOW 1
45 #define XFS_ERRLEVEL_HIGH 5
46
47 /*
48 * Macros to set EFSCORRUPTED & return/branch.
49 */
50 #define XFS_WANT_CORRUPTED_GOTO(x,l) \
51 { \
52 int fs_is_ok = (x); \
53 ASSERT(fs_is_ok); \
54 if (unlikely(!fs_is_ok)) { \
55 XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_GOTO", \
56 XFS_ERRLEVEL_LOW, NULL); \
57 error = XFS_ERROR(EFSCORRUPTED); \
58 goto l; \
59 } \
60 }
61
62 #define XFS_WANT_CORRUPTED_RETURN(x) \
63 { \
64 int fs_is_ok = (x); \
65 ASSERT(fs_is_ok); \
66 if (unlikely(!fs_is_ok)) { \
67 XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_RETURN", \
68 XFS_ERRLEVEL_LOW, NULL); \
69 return XFS_ERROR(EFSCORRUPTED); \
70 } \
71 }
72
73 /*
74 * error injection tags - the labels can be anything you want
75 * but each tag should have its own unique number
76 */
77
78 #define XFS_ERRTAG_NOERROR 0
79 #define XFS_ERRTAG_IFLUSH_1 1
80 #define XFS_ERRTAG_IFLUSH_2 2
81 #define XFS_ERRTAG_IFLUSH_3 3
82 #define XFS_ERRTAG_IFLUSH_4 4
83 #define XFS_ERRTAG_IFLUSH_5 5
84 #define XFS_ERRTAG_IFLUSH_6 6
85 #define XFS_ERRTAG_DA_READ_BUF 7
86 #define XFS_ERRTAG_BTREE_CHECK_LBLOCK 8
87 #define XFS_ERRTAG_BTREE_CHECK_SBLOCK 9
88 #define XFS_ERRTAG_ALLOC_READ_AGF 10
89 #define XFS_ERRTAG_IALLOC_READ_AGI 11
90 #define XFS_ERRTAG_ITOBP_INOTOBP 12
91 #define XFS_ERRTAG_IUNLINK 13
92 #define XFS_ERRTAG_IUNLINK_REMOVE 14
93 #define XFS_ERRTAG_DIR_INO_VALIDATE 15
94 #define XFS_ERRTAG_BULKSTAT_READ_CHUNK 16
95 #define XFS_ERRTAG_IODONE_IOERR 17
96 #define XFS_ERRTAG_STRATREAD_IOERR 18
97 #define XFS_ERRTAG_STRATCMPL_IOERR 19
98 #define XFS_ERRTAG_DIOWRITE_IOERR 20
99 #define XFS_ERRTAG_BMAPIFORMAT 21
100 #define XFS_ERRTAG_MAX 22
101
102 /*
103 * Random factors for above tags, 1 means always, 2 means 1/2 time, etc.
104 */
105 #define XFS_RANDOM_DEFAULT 100
106 #define XFS_RANDOM_IFLUSH_1 XFS_RANDOM_DEFAULT
107 #define XFS_RANDOM_IFLUSH_2 XFS_RANDOM_DEFAULT
108 #define XFS_RANDOM_IFLUSH_3 XFS_RANDOM_DEFAULT
109 #define XFS_RANDOM_IFLUSH_4 XFS_RANDOM_DEFAULT
110 #define XFS_RANDOM_IFLUSH_5 XFS_RANDOM_DEFAULT
111 #define XFS_RANDOM_IFLUSH_6 XFS_RANDOM_DEFAULT
112 #define XFS_RANDOM_DA_READ_BUF XFS_RANDOM_DEFAULT
113 #define XFS_RANDOM_BTREE_CHECK_LBLOCK (XFS_RANDOM_DEFAULT/4)
114 #define XFS_RANDOM_BTREE_CHECK_SBLOCK XFS_RANDOM_DEFAULT
115 #define XFS_RANDOM_ALLOC_READ_AGF XFS_RANDOM_DEFAULT
116 #define XFS_RANDOM_IALLOC_READ_AGI XFS_RANDOM_DEFAULT
117 #define XFS_RANDOM_ITOBP_INOTOBP XFS_RANDOM_DEFAULT
118 #define XFS_RANDOM_IUNLINK XFS_RANDOM_DEFAULT
119 #define XFS_RANDOM_IUNLINK_REMOVE XFS_RANDOM_DEFAULT
120 #define XFS_RANDOM_DIR_INO_VALIDATE XFS_RANDOM_DEFAULT
121 #define XFS_RANDOM_BULKSTAT_READ_CHUNK XFS_RANDOM_DEFAULT
122 #define XFS_RANDOM_IODONE_IOERR (XFS_RANDOM_DEFAULT/10)
123 #define XFS_RANDOM_STRATREAD_IOERR (XFS_RANDOM_DEFAULT/10)
124 #define XFS_RANDOM_STRATCMPL_IOERR (XFS_RANDOM_DEFAULT/10)
125 #define XFS_RANDOM_DIOWRITE_IOERR (XFS_RANDOM_DEFAULT/10)
126 #define XFS_RANDOM_BMAPIFORMAT XFS_RANDOM_DEFAULT
127
128 #if (defined(DEBUG) || defined(INDUCE_IO_ERROR))
129 extern int xfs_error_test(int, int *, char *, int, char *, unsigned long);
130 extern void xfs_error_test_init(void);
131
132 #define XFS_NUM_INJECT_ERROR 10
133
134 #ifdef __ANSI_CPP__
135 #define XFS_TEST_ERROR(expr, mp, tag, rf) \
136 ((expr) || \
137 xfs_error_test((tag), (mp)->m_fixedfsid, #expr, __LINE__, __FILE__, \
138 (rf)))
139 #else
140 #define XFS_TEST_ERROR(expr, mp, tag, rf) \
141 ((expr) || \
142 xfs_error_test((tag), (mp)->m_fixedfsid, "expr", __LINE__, __FILE__, \
143 (rf)))
144 #endif /* __ANSI_CPP__ */
145
146 extern int xfs_errortag_add(int error_tag, xfs_mount_t *mp);
147 extern int xfs_errortag_clearall(xfs_mount_t *mp, int loud);
148 #else
149 #define XFS_TEST_ERROR(expr, mp, tag, rf) (expr)
150 #define xfs_errortag_add(tag, mp) (ENOSYS)
151 #define xfs_errortag_clearall(mp, loud) (ENOSYS)
152 #endif /* (DEBUG || INDUCE_IO_ERROR) */
153
154 /*
155 * XFS panic tags -- allow a call to xfs_cmn_err() be turned into
156 * a panic by setting xfs_panic_mask in a
157 * sysctl. update xfs_max[XFS_PARAM] if
158 * more are added.
159 */
160 #define XFS_NO_PTAG 0
161 #define XFS_PTAG_IFLUSH 0x00000001
162 #define XFS_PTAG_LOGRES 0x00000002
163 #define XFS_PTAG_AILDELETE 0x00000004
164 #define XFS_PTAG_ERROR_REPORT 0x00000008
165 #define XFS_PTAG_SHUTDOWN_CORRUPT 0x00000010
166 #define XFS_PTAG_SHUTDOWN_IOERROR 0x00000020
167 #define XFS_PTAG_SHUTDOWN_LOGERROR 0x00000040
168 #define XFS_PTAG_FSBLOCK_ZERO 0x00000080
169
170 struct xfs_mount;
171 /* PRINTFLIKE4 */
172 extern void xfs_cmn_err(int panic_tag, int level, struct xfs_mount *mp,
173 char *fmt, ...);
174 /* PRINTFLIKE3 */
175 extern void xfs_fs_cmn_err(int level, struct xfs_mount *mp, char *fmt, ...);
176
177 extern void xfs_hex_dump(void *p, int length);
178
179 #define xfs_fs_repair_cmn_err(level, mp, fmt, args...) \
180 xfs_fs_cmn_err(level, mp, fmt " Unmount and run xfs_repair.", ## args)
181
182 #define xfs_fs_mount_cmn_err(f, fmt, args...) \
183 ((f & XFS_MFSI_QUIET)? (void)0 : cmn_err(CE_WARN, "XFS: " fmt, ## args))
184
185 #endif /* __XFS_ERROR_H__ */
186
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