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 extern void xfs_verifier_error(struct xfs_buf *bp); 38 39 #define XFS_ERROR_REPORT(e, lvl, mp) \ 40 xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address) 41 #define XFS_CORRUPTION_ERROR(e, lvl, mp, mem) \ 42 xfs_corruption_error(e, lvl, mp, mem, \ 43 __FILE__, __LINE__, __return_address) 44 45 #define XFS_ERRLEVEL_OFF 0 46 #define XFS_ERRLEVEL_LOW 1 47 #define XFS_ERRLEVEL_HIGH 5 48 49 /* 50 * Macros to set EFSCORRUPTED & return/branch. 51 */ 52 #define XFS_WANT_CORRUPTED_GOTO(x,l) \ 53 { \ 54 int fs_is_ok = (x); \ 55 ASSERT(fs_is_ok); \ 56 if (unlikely(!fs_is_ok)) { \ 57 XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_GOTO", \ 58 XFS_ERRLEVEL_LOW, NULL); \ 59 error = XFS_ERROR(EFSCORRUPTED); \ 60 goto l; \ 61 } \ 62 } 63 64 #define XFS_WANT_CORRUPTED_RETURN(x) \ 65 { \ 66 int fs_is_ok = (x); \ 67 ASSERT(fs_is_ok); \ 68 if (unlikely(!fs_is_ok)) { \ 69 XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_RETURN", \ 70 XFS_ERRLEVEL_LOW, NULL); \ 71 return XFS_ERROR(EFSCORRUPTED); \ 72 } \ 73 } 74 75 /* 76 * error injection tags - the labels can be anything you want 77 * but each tag should have its own unique number 78 */ 79 80 #define XFS_ERRTAG_NOERROR 0 81 #define XFS_ERRTAG_IFLUSH_1 1 82 #define XFS_ERRTAG_IFLUSH_2 2 83 #define XFS_ERRTAG_IFLUSH_3 3 84 #define XFS_ERRTAG_IFLUSH_4 4 85 #define XFS_ERRTAG_IFLUSH_5 5 86 #define XFS_ERRTAG_IFLUSH_6 6 87 #define XFS_ERRTAG_DA_READ_BUF 7 88 #define XFS_ERRTAG_BTREE_CHECK_LBLOCK 8 89 #define XFS_ERRTAG_BTREE_CHECK_SBLOCK 9 90 #define XFS_ERRTAG_ALLOC_READ_AGF 10 91 #define XFS_ERRTAG_IALLOC_READ_AGI 11 92 #define XFS_ERRTAG_ITOBP_INOTOBP 12 93 #define XFS_ERRTAG_IUNLINK 13 94 #define XFS_ERRTAG_IUNLINK_REMOVE 14 95 #define XFS_ERRTAG_DIR_INO_VALIDATE 15 96 #define XFS_ERRTAG_BULKSTAT_READ_CHUNK 16 97 #define XFS_ERRTAG_IODONE_IOERR 17 98 #define XFS_ERRTAG_STRATREAD_IOERR 18 99 #define XFS_ERRTAG_STRATCMPL_IOERR 19 100 #define XFS_ERRTAG_DIOWRITE_IOERR 20 101 #define XFS_ERRTAG_BMAPIFORMAT 21 102 #define XFS_ERRTAG_MAX 22 103 104 /* 105 * Random factors for above tags, 1 means always, 2 means 1/2 time, etc. 106 */ 107 #define XFS_RANDOM_DEFAULT 100 108 #define XFS_RANDOM_IFLUSH_1 XFS_RANDOM_DEFAULT 109 #define XFS_RANDOM_IFLUSH_2 XFS_RANDOM_DEFAULT 110 #define XFS_RANDOM_IFLUSH_3 XFS_RANDOM_DEFAULT 111 #define XFS_RANDOM_IFLUSH_4 XFS_RANDOM_DEFAULT 112 #define XFS_RANDOM_IFLUSH_5 XFS_RANDOM_DEFAULT 113 #define XFS_RANDOM_IFLUSH_6 XFS_RANDOM_DEFAULT 114 #define XFS_RANDOM_DA_READ_BUF XFS_RANDOM_DEFAULT 115 #define XFS_RANDOM_BTREE_CHECK_LBLOCK (XFS_RANDOM_DEFAULT/4) 116 #define XFS_RANDOM_BTREE_CHECK_SBLOCK XFS_RANDOM_DEFAULT 117 #define XFS_RANDOM_ALLOC_READ_AGF XFS_RANDOM_DEFAULT 118 #define XFS_RANDOM_IALLOC_READ_AGI XFS_RANDOM_DEFAULT 119 #define XFS_RANDOM_ITOBP_INOTOBP XFS_RANDOM_DEFAULT 120 #define XFS_RANDOM_IUNLINK XFS_RANDOM_DEFAULT 121 #define XFS_RANDOM_IUNLINK_REMOVE XFS_RANDOM_DEFAULT 122 #define XFS_RANDOM_DIR_INO_VALIDATE XFS_RANDOM_DEFAULT 123 #define XFS_RANDOM_BULKSTAT_READ_CHUNK XFS_RANDOM_DEFAULT 124 #define XFS_RANDOM_IODONE_IOERR (XFS_RANDOM_DEFAULT/10) 125 #define XFS_RANDOM_STRATREAD_IOERR (XFS_RANDOM_DEFAULT/10) 126 #define XFS_RANDOM_STRATCMPL_IOERR (XFS_RANDOM_DEFAULT/10) 127 #define XFS_RANDOM_DIOWRITE_IOERR (XFS_RANDOM_DEFAULT/10) 128 #define XFS_RANDOM_BMAPIFORMAT XFS_RANDOM_DEFAULT 129 130 #ifdef DEBUG 131 extern int xfs_error_test_active; 132 extern int xfs_error_test(int, int *, char *, int, char *, unsigned long); 133 134 #define XFS_NUM_INJECT_ERROR 10 135 #define XFS_TEST_ERROR(expr, mp, tag, rf) \ 136 ((expr) || (xfs_error_test_active && \ 137 xfs_error_test((tag), (mp)->m_fixedfsid, "expr", __LINE__, __FILE__, \ 138 (rf)))) 139 140 extern int xfs_errortag_add(int error_tag, struct xfs_mount *mp); 141 extern int xfs_errortag_clearall(struct xfs_mount *mp, int loud); 142 #else 143 #define XFS_TEST_ERROR(expr, mp, tag, rf) (expr) 144 #define xfs_errortag_add(tag, mp) (ENOSYS) 145 #define xfs_errortag_clearall(mp, loud) (ENOSYS) 146 #endif /* DEBUG */ 147 148 /* 149 * XFS panic tags -- allow a call to xfs_alert_tag() be turned into 150 * a panic by setting xfs_panic_mask in a sysctl. 151 */ 152 #define XFS_NO_PTAG 0 153 #define XFS_PTAG_IFLUSH 0x00000001 154 #define XFS_PTAG_LOGRES 0x00000002 155 #define XFS_PTAG_AILDELETE 0x00000004 156 #define XFS_PTAG_ERROR_REPORT 0x00000008 157 #define XFS_PTAG_SHUTDOWN_CORRUPT 0x00000010 158 #define XFS_PTAG_SHUTDOWN_IOERROR 0x00000020 159 #define XFS_PTAG_SHUTDOWN_LOGERROR 0x00000040 160 #define XFS_PTAG_FSBLOCK_ZERO 0x00000080 161 162 #endif /* __XFS_ERROR_H__ */ 163