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 #define prdev(fmt,targ,args...) \ 22 printk("XFS: device %s - " fmt "\n", XFS_BUFTARG_NAME(targ), ## args) 23 24 #define XFS_ERECOVER 1 /* Failure to recover log */ 25 #define XFS_ELOGSTAT 2 /* Failure to stat log in user space */ 26 #define XFS_ENOLOGSPACE 3 /* Reservation too large */ 27 #define XFS_ENOTSUP 4 /* Operation not supported */ 28 #define XFS_ENOLSN 5 /* Can't find the lsn you asked for */ 29 #define XFS_ENOTFOUND 6 30 #define XFS_ENOTXFS 7 /* Not XFS filesystem */ 31 32 #ifdef DEBUG 33 #define XFS_ERROR_NTRAP 10 34 extern int xfs_etrap[XFS_ERROR_NTRAP]; 35 extern int xfs_error_trap(int); 36 #define XFS_ERROR(e) xfs_error_trap(e) 37 #else 38 #define XFS_ERROR(e) (e) 39 #endif 40 41 struct xfs_mount; 42 43 extern void xfs_error_report(char *tag, int level, struct xfs_mount *mp, 44 char *fname, int linenum, inst_t *ra); 45 extern void xfs_corruption_error(char *tag, int level, struct xfs_mount *mp, 46 void *p, char *fname, int linenum, inst_t *ra); 47 48 #define XFS_ERROR_REPORT(e, lvl, mp) \ 49 xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address) 50 #define XFS_CORRUPTION_ERROR(e, lvl, mp, mem) \ 51 xfs_corruption_error(e, lvl, mp, mem, \ 52 __FILE__, __LINE__, __return_address) 53 54 #define XFS_ERRLEVEL_OFF 0 55 #define XFS_ERRLEVEL_LOW 1 56 #define XFS_ERRLEVEL_HIGH 5 57 58 /* 59 * Macros to set EFSCORRUPTED & return/branch. 60 */ 61 #define XFS_WANT_CORRUPTED_GOTO(x,l) \ 62 { \ 63 int fs_is_ok = (x); \ 64 ASSERT(fs_is_ok); \ 65 if (unlikely(!fs_is_ok)) { \ 66 XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_GOTO", \ 67 XFS_ERRLEVEL_LOW, NULL); \ 68 error = XFS_ERROR(EFSCORRUPTED); \ 69 goto l; \ 70 } \ 71 } 72 73 #define XFS_WANT_CORRUPTED_RETURN(x) \ 74 { \ 75 int fs_is_ok = (x); \ 76 ASSERT(fs_is_ok); \ 77 if (unlikely(!fs_is_ok)) { \ 78 XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_RETURN", \ 79 XFS_ERRLEVEL_LOW, NULL); \ 80 return XFS_ERROR(EFSCORRUPTED); \ 81 } \ 82 } 83 84 /* 85 * error injection tags - the labels can be anything you want 86 * but each tag should have its own unique number 87 */ 88 89 #define XFS_ERRTAG_NOERROR 0 90 #define XFS_ERRTAG_IFLUSH_1 1 91 #define XFS_ERRTAG_IFLUSH_2 2 92 #define XFS_ERRTAG_IFLUSH_3 3 93 #define XFS_ERRTAG_IFLUSH_4 4 94 #define XFS_ERRTAG_IFLUSH_5 5 95 #define XFS_ERRTAG_IFLUSH_6 6 96 #define XFS_ERRTAG_DA_READ_BUF 7 97 #define XFS_ERRTAG_BTREE_CHECK_LBLOCK 8 98 #define XFS_ERRTAG_BTREE_CHECK_SBLOCK 9 99 #define XFS_ERRTAG_ALLOC_READ_AGF 10 100 #define XFS_ERRTAG_IALLOC_READ_AGI 11 101 #define XFS_ERRTAG_ITOBP_INOTOBP 12 102 #define XFS_ERRTAG_IUNLINK 13 103 #define XFS_ERRTAG_IUNLINK_REMOVE 14 104 #define XFS_ERRTAG_DIR_INO_VALIDATE 15 105 #define XFS_ERRTAG_BULKSTAT_READ_CHUNK 16 106 #define XFS_ERRTAG_IODONE_IOERR 17 107 #define XFS_ERRTAG_STRATREAD_IOERR 18 108 #define XFS_ERRTAG_STRATCMPL_IOERR 19 109 #define XFS_ERRTAG_DIOWRITE_IOERR 20 110 #define XFS_ERRTAG_BMAPIFORMAT 21 111 #define XFS_ERRTAG_MAX 22 112 113 /* 114 * Random factors for above tags, 1 means always, 2 means 1/2 time, etc. 115 */ 116 #define XFS_RANDOM_DEFAULT 100 117 #define XFS_RANDOM_IFLUSH_1 XFS_RANDOM_DEFAULT 118 #define XFS_RANDOM_IFLUSH_2 XFS_RANDOM_DEFAULT 119 #define XFS_RANDOM_IFLUSH_3 XFS_RANDOM_DEFAULT 120 #define XFS_RANDOM_IFLUSH_4 XFS_RANDOM_DEFAULT 121 #define XFS_RANDOM_IFLUSH_5 XFS_RANDOM_DEFAULT 122 #define XFS_RANDOM_IFLUSH_6 XFS_RANDOM_DEFAULT 123 #define XFS_RANDOM_DA_READ_BUF XFS_RANDOM_DEFAULT 124 #define XFS_RANDOM_BTREE_CHECK_LBLOCK (XFS_RANDOM_DEFAULT/4) 125 #define XFS_RANDOM_BTREE_CHECK_SBLOCK XFS_RANDOM_DEFAULT 126 #define XFS_RANDOM_ALLOC_READ_AGF XFS_RANDOM_DEFAULT 127 #define XFS_RANDOM_IALLOC_READ_AGI XFS_RANDOM_DEFAULT 128 #define XFS_RANDOM_ITOBP_INOTOBP XFS_RANDOM_DEFAULT 129 #define XFS_RANDOM_IUNLINK XFS_RANDOM_DEFAULT 130 #define XFS_RANDOM_IUNLINK_REMOVE XFS_RANDOM_DEFAULT 131 #define XFS_RANDOM_DIR_INO_VALIDATE XFS_RANDOM_DEFAULT 132 #define XFS_RANDOM_BULKSTAT_READ_CHUNK XFS_RANDOM_DEFAULT 133 #define XFS_RANDOM_IODONE_IOERR (XFS_RANDOM_DEFAULT/10) 134 #define XFS_RANDOM_STRATREAD_IOERR (XFS_RANDOM_DEFAULT/10) 135 #define XFS_RANDOM_STRATCMPL_IOERR (XFS_RANDOM_DEFAULT/10) 136 #define XFS_RANDOM_DIOWRITE_IOERR (XFS_RANDOM_DEFAULT/10) 137 #define XFS_RANDOM_BMAPIFORMAT XFS_RANDOM_DEFAULT 138 139 #if (defined(DEBUG) || defined(INDUCE_IO_ERROR)) 140 extern int xfs_error_test(int, int *, char *, int, char *, unsigned long); 141 extern void xfs_error_test_init(void); 142 143 #define XFS_NUM_INJECT_ERROR 10 144 145 #ifdef __ANSI_CPP__ 146 #define XFS_TEST_ERROR(expr, mp, tag, rf) \ 147 ((expr) || \ 148 xfs_error_test((tag), (mp)->m_fixedfsid, #expr, __LINE__, __FILE__, \ 149 (rf))) 150 #else 151 #define XFS_TEST_ERROR(expr, mp, tag, rf) \ 152 ((expr) || \ 153 xfs_error_test((tag), (mp)->m_fixedfsid, "expr", __LINE__, __FILE__, \ 154 (rf))) 155 #endif /* __ANSI_CPP__ */ 156 157 extern int xfs_errortag_add(int error_tag, xfs_mount_t *mp); 158 extern int xfs_errortag_clear(int error_tag, xfs_mount_t *mp); 159 extern int xfs_errortag_clearall(xfs_mount_t *mp); 160 extern int xfs_errortag_clearall_umount(int64_t fsid, char *fsname, int loud); 161 #else 162 #define XFS_TEST_ERROR(expr, mp, tag, rf) (expr) 163 #define xfs_errortag_add(tag, mp) (ENOSYS) 164 #define xfs_errortag_clearall(mp) (ENOSYS) 165 #endif /* (DEBUG || INDUCE_IO_ERROR) */ 166 167 /* 168 * XFS panic tags -- allow a call to xfs_cmn_err() be turned into 169 * a panic by setting xfs_panic_mask in a 170 * sysctl. update xfs_max[XFS_PARAM] if 171 * more are added. 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 181 182 struct xfs_mount; 183 /* PRINTFLIKE4 */ 184 extern void xfs_cmn_err(int panic_tag, int level, struct xfs_mount *mp, 185 char *fmt, ...); 186 /* PRINTFLIKE3 */ 187 extern void xfs_fs_cmn_err(int level, struct xfs_mount *mp, char *fmt, ...); 188 189 #endif /* __XFS_ERROR_H__ */ 190