projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 | 1 | /* |
| 7b718769 NS |
2 | * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. |
| 3 | * All Rights Reserved. | |
| 1da177e4 | 4 | * |
| 7b718769 NS |
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 | |
| 1da177e4 LT |
7 | * published by the Free Software Foundation. |
| 8 | * | |
| 7b718769 NS |
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. | |
| 1da177e4 | 13 | * |
| 7b718769 NS |
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 | |
| 1da177e4 LT |
17 | */ |
| 18 | #ifndef __XFS_ERROR_H__ | |
| 19 | #define __XFS_ERROR_H__ | |
| 20 | ||
| 1da177e4 LT |
21 | struct xfs_mount; |
| 22 | ||
| a0e856b0 | 23 | extern void xfs_error_report(const char *tag, int level, struct xfs_mount *mp, |
| d9418ed0 DW |
24 | const char *filename, int linenum, |
| 25 | xfs_failaddr_t failaddr); | |
| a0e856b0 AE |
26 | extern void xfs_corruption_error(const char *tag, int level, |
| 27 | struct xfs_mount *mp, void *p, const char *filename, | |
| d9418ed0 | 28 | int linenum, xfs_failaddr_t failaddr); |
| 6edb1810 DW |
29 | extern 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); | |
| bc1a09b8 DW |
32 | extern void xfs_verifier_error(struct xfs_buf *bp, int error, |
| 33 | xfs_failaddr_t failaddr); | |
| 22431bf3 DW |
34 | extern 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); | |
| 1da177e4 | 37 | |
| 1da177e4 LT |
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 | ||
| 9c712a13 DW |
48 | /* Dump 128 bytes of any corrupt buffer */ |
| 49 | #define XFS_CORRUPTION_DUMP_LEN (128) | |
| 50 | ||
| a844f451 NS |
51 | /* |
| 52 | * Macros to set EFSCORRUPTED & return/branch. | |
| 53 | */ | |
| c29aad41 | 54 | #define XFS_WANT_CORRUPTED_GOTO(mp, x, l) \ |
| a844f451 NS |
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", \ | |
| c29aad41 | 60 | XFS_ERRLEVEL_LOW, mp); \ |
| 2451337d | 61 | error = -EFSCORRUPTED; \ |
| a844f451 NS |
62 | goto l; \ |
| 63 | } \ | |
| 64 | } | |
| 65 | ||
| 5fb5aeee | 66 | #define XFS_WANT_CORRUPTED_RETURN(mp, x) \ |
| a844f451 NS |
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", \ | |
| 5fb5aeee | 72 | XFS_ERRLEVEL_LOW, mp); \ |
| 2451337d | 73 | return -EFSCORRUPTED; \ |
| a844f451 NS |
74 | } \ |
| 75 | } | |
| 76 | ||
| 1550d0b0 | 77 | #ifdef DEBUG |
| 31965ef3 DW |
78 | extern int xfs_errortag_init(struct xfs_mount *mp); |
| 79 | extern void xfs_errortag_del(struct xfs_mount *mp); | |
| 80 | extern bool xfs_errortag_test(struct xfs_mount *mp, const char *expression, | |
| 81 | const char *file, int line, unsigned int error_tag); | |
| 9e24cfd0 | 82 | #define XFS_TEST_ERROR(expr, mp, tag) \ |
| 31965ef3 | 83 | ((expr) || xfs_errortag_test((mp), #expr, __FILE__, __LINE__, (tag))) |
| 1da177e4 | 84 | |
| c6840101 | 85 | extern int xfs_errortag_get(struct xfs_mount *mp, unsigned int error_tag); |
| 31965ef3 DW |
86 | extern int xfs_errortag_set(struct xfs_mount *mp, unsigned int error_tag, |
| 87 | unsigned int tag_value); | |
| 88 | extern int xfs_errortag_add(struct xfs_mount *mp, unsigned int error_tag); | |
| 89 | extern int xfs_errortag_clearall(struct xfs_mount *mp); | |
| 1da177e4 | 90 | #else |
| 31965ef3 DW |
91 | #define xfs_errortag_init(mp) (0) |
| 92 | #define xfs_errortag_del(mp) | |
| 9e24cfd0 | 93 | #define XFS_TEST_ERROR(expr, mp, tag) (expr) |
| 31965ef3 DW |
94 | #define xfs_errortag_set(mp, tag, val) (ENOSYS) |
| 95 | #define xfs_errortag_add(mp, tag) (ENOSYS) | |
| 96 | #define xfs_errortag_clearall(mp) (ENOSYS) | |
| 1550d0b0 | 97 | #endif /* DEBUG */ |
| 1da177e4 LT |
98 | |
| 99 | /* | |
| 6a19d939 DC |
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. | |
| 1da177e4 LT |
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 | |
| 572d95f4 | 111 | #define XFS_PTAG_FSBLOCK_ZERO 0x00000080 |
| 1da177e4 | 112 | |
| 1da177e4 | 113 | #endif /* __XFS_ERROR_H__ */ |