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 struct xfs_mount; 22 23 extern void xfs_error_report(const char *tag, int level, struct xfs_mount *mp, 24 const char *filename, int linenum, 25 xfs_failaddr_t failaddr); 26 extern 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); 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); 32 extern void xfs_verifier_error(struct xfs_buf *bp, int error, 33 xfs_failaddr_t failaddr); 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); 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 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); 82 #define XFS_TEST_ERROR(expr, mp, tag) \ 83 ((expr) || xfs_errortag_test((mp), #expr, __FILE__, __LINE__, (tag))) 84 85 extern int xfs_errortag_get(struct xfs_mount *mp, unsigned int error_tag); 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); 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__ */ 114