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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 |
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(const char *tag, int level, struct xfs_mount *mp, |
33 | const char *filename, int linenum, inst_t *ra); |
34 | extern 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); |
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 | /* |
49 | * Macros to set EFSCORRUPTED & return/branch. |
50 | */ |
51 | #define XFS_WANT_CORRUPTED_GOTO(x,l) \ |
52 | { \ |
53 | int fs_is_ok = (x); \ |
54 | ASSERT(fs_is_ok); \ |
55 | if (unlikely(!fs_is_ok)) { \ |
56 | XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_GOTO", \ |
57 | XFS_ERRLEVEL_LOW, NULL); \ |
58 | error = XFS_ERROR(EFSCORRUPTED); \ |
59 | goto l; \ |
60 | } \ |
61 | } |
62 | |
63 | #define XFS_WANT_CORRUPTED_RETURN(x) \ |
64 | { \ |
65 | int fs_is_ok = (x); \ |
66 | ASSERT(fs_is_ok); \ |
67 | if (unlikely(!fs_is_ok)) { \ |
68 | XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_RETURN", \ |
69 | XFS_ERRLEVEL_LOW, NULL); \ |
70 | return XFS_ERROR(EFSCORRUPTED); \ |
71 | } \ |
72 | } |
73 | |
74 | /* |
75 | * error injection tags - the labels can be anything you want |
76 | * but each tag should have its own unique number |
77 | */ |
78 | |
79 | #define XFS_ERRTAG_NOERROR 0 |
80 | #define XFS_ERRTAG_IFLUSH_1 1 |
81 | #define XFS_ERRTAG_IFLUSH_2 2 |
82 | #define XFS_ERRTAG_IFLUSH_3 3 |
83 | #define XFS_ERRTAG_IFLUSH_4 4 |
84 | #define XFS_ERRTAG_IFLUSH_5 5 |
85 | #define XFS_ERRTAG_IFLUSH_6 6 |
86 | #define XFS_ERRTAG_DA_READ_BUF 7 |
87 | #define XFS_ERRTAG_BTREE_CHECK_LBLOCK 8 |
88 | #define XFS_ERRTAG_BTREE_CHECK_SBLOCK 9 |
89 | #define XFS_ERRTAG_ALLOC_READ_AGF 10 |
90 | #define XFS_ERRTAG_IALLOC_READ_AGI 11 |
91 | #define XFS_ERRTAG_ITOBP_INOTOBP 12 |
92 | #define XFS_ERRTAG_IUNLINK 13 |
93 | #define XFS_ERRTAG_IUNLINK_REMOVE 14 |
94 | #define XFS_ERRTAG_DIR_INO_VALIDATE 15 |
95 | #define XFS_ERRTAG_BULKSTAT_READ_CHUNK 16 |
96 | #define XFS_ERRTAG_IODONE_IOERR 17 |
97 | #define XFS_ERRTAG_STRATREAD_IOERR 18 |
98 | #define XFS_ERRTAG_STRATCMPL_IOERR 19 |
99 | #define XFS_ERRTAG_DIOWRITE_IOERR 20 |
100 | #define XFS_ERRTAG_BMAPIFORMAT 21 |
101 | #define XFS_ERRTAG_MAX 22 |
102 | |
103 | /* |
104 | * Random factors for above tags, 1 means always, 2 means 1/2 time, etc. |
105 | */ |
106 | #define XFS_RANDOM_DEFAULT 100 |
107 | #define XFS_RANDOM_IFLUSH_1 XFS_RANDOM_DEFAULT |
108 | #define XFS_RANDOM_IFLUSH_2 XFS_RANDOM_DEFAULT |
109 | #define XFS_RANDOM_IFLUSH_3 XFS_RANDOM_DEFAULT |
110 | #define XFS_RANDOM_IFLUSH_4 XFS_RANDOM_DEFAULT |
111 | #define XFS_RANDOM_IFLUSH_5 XFS_RANDOM_DEFAULT |
112 | #define XFS_RANDOM_IFLUSH_6 XFS_RANDOM_DEFAULT |
113 | #define XFS_RANDOM_DA_READ_BUF XFS_RANDOM_DEFAULT |
114 | #define XFS_RANDOM_BTREE_CHECK_LBLOCK (XFS_RANDOM_DEFAULT/4) |
115 | #define XFS_RANDOM_BTREE_CHECK_SBLOCK XFS_RANDOM_DEFAULT |
116 | #define XFS_RANDOM_ALLOC_READ_AGF XFS_RANDOM_DEFAULT |
117 | #define XFS_RANDOM_IALLOC_READ_AGI XFS_RANDOM_DEFAULT |
118 | #define XFS_RANDOM_ITOBP_INOTOBP XFS_RANDOM_DEFAULT |
119 | #define XFS_RANDOM_IUNLINK XFS_RANDOM_DEFAULT |
120 | #define XFS_RANDOM_IUNLINK_REMOVE XFS_RANDOM_DEFAULT |
121 | #define XFS_RANDOM_DIR_INO_VALIDATE XFS_RANDOM_DEFAULT |
122 | #define XFS_RANDOM_BULKSTAT_READ_CHUNK XFS_RANDOM_DEFAULT |
123 | #define XFS_RANDOM_IODONE_IOERR (XFS_RANDOM_DEFAULT/10) |
124 | #define XFS_RANDOM_STRATREAD_IOERR (XFS_RANDOM_DEFAULT/10) |
125 | #define XFS_RANDOM_STRATCMPL_IOERR (XFS_RANDOM_DEFAULT/10) |
126 | #define XFS_RANDOM_DIOWRITE_IOERR (XFS_RANDOM_DEFAULT/10) |
127 | #define XFS_RANDOM_BMAPIFORMAT XFS_RANDOM_DEFAULT |
128 | |
129 | #ifdef DEBUG |
130 | extern int xfs_error_test_active; |
131 | extern int xfs_error_test(int, int *, char *, int, char *, unsigned long); |
132 | |
133 | #define XFS_NUM_INJECT_ERROR 10 |
134 | #define XFS_TEST_ERROR(expr, mp, tag, rf) \ |
135 | ((expr) || (xfs_error_test_active && \ |
136 | xfs_error_test((tag), (mp)->m_fixedfsid, "expr", __LINE__, __FILE__, \ |
137 | (rf)))) |
138 | |
139 | extern int xfs_errortag_add(int error_tag, struct xfs_mount *mp); |
140 | extern int xfs_errortag_clearall(struct xfs_mount *mp, int loud); |
141 | #else |
142 | #define XFS_TEST_ERROR(expr, mp, tag, rf) (expr) |
143 | #define xfs_errortag_add(tag, mp) (ENOSYS) |
144 | #define xfs_errortag_clearall(mp, loud) (ENOSYS) |
145 | #endif /* DEBUG */ |
146 | |
147 | /* |
148 | * XFS panic tags -- allow a call to xfs_alert_tag() be turned into |
149 | * a panic by setting xfs_panic_mask in a sysctl. |
150 | */ |
151 | #define XFS_NO_PTAG 0 |
152 | #define XFS_PTAG_IFLUSH 0x00000001 |
153 | #define XFS_PTAG_LOGRES 0x00000002 |
154 | #define XFS_PTAG_AILDELETE 0x00000004 |
155 | #define XFS_PTAG_ERROR_REPORT 0x00000008 |
156 | #define XFS_PTAG_SHUTDOWN_CORRUPT 0x00000010 |
157 | #define XFS_PTAG_SHUTDOWN_IOERROR 0x00000020 |
158 | #define XFS_PTAG_SHUTDOWN_LOGERROR 0x00000040 |
159 | #define XFS_PTAG_FSBLOCK_ZERO 0x00000080 |
160 | |
161 | #endif /* __XFS_ERROR_H__ */ |
162 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
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v3.9