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