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, void *ra); 25 extern void xfs_corruption_error(const char *tag, int level, 26 struct xfs_mount *mp, void *p, const char *filename, 27 int linenum, void *ra); 28 extern void xfs_verifier_error(struct xfs_buf *bp); 29 30 #define XFS_ERROR_REPORT(e, lvl, mp) \ 31 xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address) 32 #define XFS_CORRUPTION_ERROR(e, lvl, mp, mem) \ 33 xfs_corruption_error(e, lvl, mp, mem, \ 34 __FILE__, __LINE__, __return_address) 35 36 #define XFS_ERRLEVEL_OFF 0 37 #define XFS_ERRLEVEL_LOW 1 38 #define XFS_ERRLEVEL_HIGH 5 39 40 /* 41 * Macros to set EFSCORRUPTED & return/branch. 42 */ 43 #define XFS_WANT_CORRUPTED_GOTO(mp, x, l) \ 44 { \ 45 int fs_is_ok = (x); \ 46 ASSERT(fs_is_ok); \ 47 if (unlikely(!fs_is_ok)) { \ 48 XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_GOTO", \ 49 XFS_ERRLEVEL_LOW, mp); \ 50 error = -EFSCORRUPTED; \ 51 goto l; \ 52 } \ 53 } 54 55 #define XFS_WANT_CORRUPTED_RETURN(mp, x) \ 56 { \ 57 int fs_is_ok = (x); \ 58 ASSERT(fs_is_ok); \ 59 if (unlikely(!fs_is_ok)) { \ 60 XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_RETURN", \ 61 XFS_ERRLEVEL_LOW, mp); \ 62 return -EFSCORRUPTED; \ 63 } \ 64 } 65 66 /* 67 * error injection tags - the labels can be anything you want 68 * but each tag should have its own unique number 69 */ 70 71 #define XFS_ERRTAG_NOERROR 0 72 #define XFS_ERRTAG_IFLUSH_1 1 73 #define XFS_ERRTAG_IFLUSH_2 2 74 #define XFS_ERRTAG_IFLUSH_3 3 75 #define XFS_ERRTAG_IFLUSH_4 4 76 #define XFS_ERRTAG_IFLUSH_5 5 77 #define XFS_ERRTAG_IFLUSH_6 6 78 #define XFS_ERRTAG_DA_READ_BUF 7 79 #define XFS_ERRTAG_BTREE_CHECK_LBLOCK 8 80 #define XFS_ERRTAG_BTREE_CHECK_SBLOCK 9 81 #define XFS_ERRTAG_ALLOC_READ_AGF 10 82 #define XFS_ERRTAG_IALLOC_READ_AGI 11 83 #define XFS_ERRTAG_ITOBP_INOTOBP 12 84 #define XFS_ERRTAG_IUNLINK 13 85 #define XFS_ERRTAG_IUNLINK_REMOVE 14 86 #define XFS_ERRTAG_DIR_INO_VALIDATE 15 87 #define XFS_ERRTAG_BULKSTAT_READ_CHUNK 16 88 #define XFS_ERRTAG_IODONE_IOERR 17 89 #define XFS_ERRTAG_STRATREAD_IOERR 18 90 #define XFS_ERRTAG_STRATCMPL_IOERR 19 91 #define XFS_ERRTAG_DIOWRITE_IOERR 20 92 #define XFS_ERRTAG_BMAPIFORMAT 21 93 #define XFS_ERRTAG_FREE_EXTENT 22 94 #define XFS_ERRTAG_RMAP_FINISH_ONE 23 95 #define XFS_ERRTAG_REFCOUNT_CONTINUE_UPDATE 24 96 #define XFS_ERRTAG_REFCOUNT_FINISH_ONE 25 97 #define XFS_ERRTAG_BMAP_FINISH_ONE 26 98 #define XFS_ERRTAG_AG_RESV_CRITICAL 27 99 /* 100 * DEBUG mode instrumentation to test and/or trigger delayed allocation 101 * block killing in the event of failed writes. When enabled, all 102 * buffered writes are silenty dropped and handled as if they failed. 103 * All delalloc blocks in the range of the write (including pre-existing 104 * delalloc blocks!) are tossed as part of the write failure error 105 * handling sequence. 106 */ 107 #define XFS_ERRTAG_DROP_WRITES 28 108 #define XFS_ERRTAG_LOG_BAD_CRC 29 109 #define XFS_ERRTAG_LOG_ITEM_PIN 30 110 #define XFS_ERRTAG_MAX 31 111 112 /* 113 * Random factors for above tags, 1 means always, 2 means 1/2 time, etc. 114 */ 115 #define XFS_RANDOM_DEFAULT 100 116 #define XFS_RANDOM_IFLUSH_1 XFS_RANDOM_DEFAULT 117 #define XFS_RANDOM_IFLUSH_2 XFS_RANDOM_DEFAULT 118 #define XFS_RANDOM_IFLUSH_3 XFS_RANDOM_DEFAULT 119 #define XFS_RANDOM_IFLUSH_4 XFS_RANDOM_DEFAULT 120 #define XFS_RANDOM_IFLUSH_5 XFS_RANDOM_DEFAULT 121 #define XFS_RANDOM_IFLUSH_6 XFS_RANDOM_DEFAULT 122 #define XFS_RANDOM_DA_READ_BUF XFS_RANDOM_DEFAULT 123 #define XFS_RANDOM_BTREE_CHECK_LBLOCK (XFS_RANDOM_DEFAULT/4) 124 #define XFS_RANDOM_BTREE_CHECK_SBLOCK XFS_RANDOM_DEFAULT 125 #define XFS_RANDOM_ALLOC_READ_AGF XFS_RANDOM_DEFAULT 126 #define XFS_RANDOM_IALLOC_READ_AGI XFS_RANDOM_DEFAULT 127 #define XFS_RANDOM_ITOBP_INOTOBP XFS_RANDOM_DEFAULT 128 #define XFS_RANDOM_IUNLINK XFS_RANDOM_DEFAULT 129 #define XFS_RANDOM_IUNLINK_REMOVE XFS_RANDOM_DEFAULT 130 #define XFS_RANDOM_DIR_INO_VALIDATE XFS_RANDOM_DEFAULT 131 #define XFS_RANDOM_BULKSTAT_READ_CHUNK XFS_RANDOM_DEFAULT 132 #define XFS_RANDOM_IODONE_IOERR (XFS_RANDOM_DEFAULT/10) 133 #define XFS_RANDOM_STRATREAD_IOERR (XFS_RANDOM_DEFAULT/10) 134 #define XFS_RANDOM_STRATCMPL_IOERR (XFS_RANDOM_DEFAULT/10) 135 #define XFS_RANDOM_DIOWRITE_IOERR (XFS_RANDOM_DEFAULT/10) 136 #define XFS_RANDOM_BMAPIFORMAT XFS_RANDOM_DEFAULT 137 #define XFS_RANDOM_FREE_EXTENT 1 138 #define XFS_RANDOM_RMAP_FINISH_ONE 1 139 #define XFS_RANDOM_REFCOUNT_CONTINUE_UPDATE 1 140 #define XFS_RANDOM_REFCOUNT_FINISH_ONE 1 141 #define XFS_RANDOM_BMAP_FINISH_ONE 1 142 #define XFS_RANDOM_AG_RESV_CRITICAL 4 143 #define XFS_RANDOM_DROP_WRITES 1 144 #define XFS_RANDOM_LOG_BAD_CRC 1 145 #define XFS_RANDOM_LOG_ITEM_PIN 1 146 147 #ifdef DEBUG 148 extern int xfs_errortag_init(struct xfs_mount *mp); 149 extern void xfs_errortag_del(struct xfs_mount *mp); 150 extern bool xfs_errortag_test(struct xfs_mount *mp, const char *expression, 151 const char *file, int line, unsigned int error_tag); 152 #define XFS_TEST_ERROR(expr, mp, tag) \ 153 ((expr) || xfs_errortag_test((mp), #expr, __FILE__, __LINE__, (tag))) 154 155 extern int xfs_errortag_get(struct xfs_mount *mp, unsigned int error_tag); 156 extern int xfs_errortag_set(struct xfs_mount *mp, unsigned int error_tag, 157 unsigned int tag_value); 158 extern int xfs_errortag_add(struct xfs_mount *mp, unsigned int error_tag); 159 extern int xfs_errortag_clearall(struct xfs_mount *mp); 160 #else 161 #define xfs_errortag_init(mp) (0) 162 #define xfs_errortag_del(mp) 163 #define XFS_TEST_ERROR(expr, mp, tag) (expr) 164 #define xfs_errortag_set(mp, tag, val) (ENOSYS) 165 #define xfs_errortag_add(mp, tag) (ENOSYS) 166 #define xfs_errortag_clearall(mp) (ENOSYS) 167 #endif /* DEBUG */ 168 169 /* 170 * XFS panic tags -- allow a call to xfs_alert_tag() be turned into 171 * a panic by setting xfs_panic_mask in a sysctl. 172 */ 173 #define XFS_NO_PTAG 0 174 #define XFS_PTAG_IFLUSH 0x00000001 175 #define XFS_PTAG_LOGRES 0x00000002 176 #define XFS_PTAG_AILDELETE 0x00000004 177 #define XFS_PTAG_ERROR_REPORT 0x00000008 178 #define XFS_PTAG_SHUTDOWN_CORRUPT 0x00000010 179 #define XFS_PTAG_SHUTDOWN_IOERROR 0x00000020 180 #define XFS_PTAG_SHUTDOWN_LOGERROR 0x00000040 181 #define XFS_PTAG_FSBLOCK_ZERO 0x00000080 182 183 #endif /* __XFS_ERROR_H__ */ 184