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_verifier_error(struct xfs_buf *bp, int error, 30 xfs_failaddr_t failaddr); 31 extern void xfs_inode_verifier_error(struct xfs_inode *ip, int error, 32 const char *name, void *buf, size_t bufsz, 33 xfs_failaddr_t failaddr); 34 35 #define XFS_ERROR_REPORT(e, lvl, mp) \ 36 xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address) 37 #define XFS_CORRUPTION_ERROR(e, lvl, mp, mem) \ 38 xfs_corruption_error(e, lvl, mp, mem, \ 39 __FILE__, __LINE__, __return_address) 40 41 #define XFS_ERRLEVEL_OFF 0 42 #define XFS_ERRLEVEL_LOW 1 43 #define XFS_ERRLEVEL_HIGH 5 44 45 /* Dump 128 bytes of any corrupt buffer */ 46 #define XFS_CORRUPTION_DUMP_LEN (128) 47 48 /* 49 * Macros to set EFSCORRUPTED & return/branch. 50 */ 51 #define XFS_WANT_CORRUPTED_GOTO(mp, 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, mp); \ 58 error = -EFSCORRUPTED; \ 59 goto l; \ 60 } \ 61 } 62 63 #define XFS_WANT_CORRUPTED_RETURN(mp, 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, mp); \ 70 return -EFSCORRUPTED; \ 71 } \ 72 } 73 74 #ifdef DEBUG 75 extern int xfs_errortag_init(struct xfs_mount *mp); 76 extern void xfs_errortag_del(struct xfs_mount *mp); 77 extern bool xfs_errortag_test(struct xfs_mount *mp, const char *expression, 78 const char *file, int line, unsigned int error_tag); 79 #define XFS_TEST_ERROR(expr, mp, tag) \ 80 ((expr) || xfs_errortag_test((mp), #expr, __FILE__, __LINE__, (tag))) 81 82 extern int xfs_errortag_get(struct xfs_mount *mp, unsigned int error_tag); 83 extern int xfs_errortag_set(struct xfs_mount *mp, unsigned int error_tag, 84 unsigned int tag_value); 85 extern int xfs_errortag_add(struct xfs_mount *mp, unsigned int error_tag); 86 extern int xfs_errortag_clearall(struct xfs_mount *mp); 87 #else 88 #define xfs_errortag_init(mp) (0) 89 #define xfs_errortag_del(mp) 90 #define XFS_TEST_ERROR(expr, mp, tag) (expr) 91 #define xfs_errortag_set(mp, tag, val) (ENOSYS) 92 #define xfs_errortag_add(mp, tag) (ENOSYS) 93 #define xfs_errortag_clearall(mp) (ENOSYS) 94 #endif /* DEBUG */ 95 96 /* 97 * XFS panic tags -- allow a call to xfs_alert_tag() be turned into 98 * a panic by setting xfs_panic_mask in a sysctl. 99 */ 100 #define XFS_NO_PTAG 0 101 #define XFS_PTAG_IFLUSH 0x00000001 102 #define XFS_PTAG_LOGRES 0x00000002 103 #define XFS_PTAG_AILDELETE 0x00000004 104 #define XFS_PTAG_ERROR_REPORT 0x00000008 105 #define XFS_PTAG_SHUTDOWN_CORRUPT 0x00000010 106 #define XFS_PTAG_SHUTDOWN_IOERROR 0x00000020 107 #define XFS_PTAG_SHUTDOWN_LOGERROR 0x00000040 108 #define XFS_PTAG_FSBLOCK_ZERO 0x00000080 109 110 #endif /* __XFS_ERROR_H__ */ 111