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 21struct xfs_mount; 22 23extern void xfs_error_report(const char *tag, int level, struct xfs_mount *mp, 24 const char *filename, int linenum, inst_t *ra); 25extern void xfs_corruption_error(const char *tag, int level, 26 struct xfs_mount *mp, void *p, const char *filename, 27 int linenum, inst_t *ra); 28extern 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(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, NULL); \ 50 error = -EFSCORRUPTED; \ 51 goto l; \ 52 } \ 53 } 54 55#define XFS_WANT_CORRUPTED_RETURN(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, NULL); \ 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_MAX 22 94 95/* 96 * Random factors for above tags, 1 means always, 2 means 1/2 time, etc. 97 */ 98#define XFS_RANDOM_DEFAULT 100 99#define XFS_RANDOM_IFLUSH_1 XFS_RANDOM_DEFAULT 100#define XFS_RANDOM_IFLUSH_2 XFS_RANDOM_DEFAULT 101#define XFS_RANDOM_IFLUSH_3 XFS_RANDOM_DEFAULT 102#define XFS_RANDOM_IFLUSH_4 XFS_RANDOM_DEFAULT 103#define XFS_RANDOM_IFLUSH_5 XFS_RANDOM_DEFAULT 104#define XFS_RANDOM_IFLUSH_6 XFS_RANDOM_DEFAULT 105#define XFS_RANDOM_DA_READ_BUF XFS_RANDOM_DEFAULT 106#define XFS_RANDOM_BTREE_CHECK_LBLOCK (XFS_RANDOM_DEFAULT/4) 107#define XFS_RANDOM_BTREE_CHECK_SBLOCK XFS_RANDOM_DEFAULT 108#define XFS_RANDOM_ALLOC_READ_AGF XFS_RANDOM_DEFAULT 109#define XFS_RANDOM_IALLOC_READ_AGI XFS_RANDOM_DEFAULT 110#define XFS_RANDOM_ITOBP_INOTOBP XFS_RANDOM_DEFAULT 111#define XFS_RANDOM_IUNLINK XFS_RANDOM_DEFAULT 112#define XFS_RANDOM_IUNLINK_REMOVE XFS_RANDOM_DEFAULT 113#define XFS_RANDOM_DIR_INO_VALIDATE XFS_RANDOM_DEFAULT 114#define XFS_RANDOM_BULKSTAT_READ_CHUNK XFS_RANDOM_DEFAULT 115#define XFS_RANDOM_IODONE_IOERR (XFS_RANDOM_DEFAULT/10) 116#define XFS_RANDOM_STRATREAD_IOERR (XFS_RANDOM_DEFAULT/10) 117#define XFS_RANDOM_STRATCMPL_IOERR (XFS_RANDOM_DEFAULT/10) 118#define XFS_RANDOM_DIOWRITE_IOERR (XFS_RANDOM_DEFAULT/10) 119#define XFS_RANDOM_BMAPIFORMAT XFS_RANDOM_DEFAULT 120 121#ifdef DEBUG 122extern int xfs_error_test_active; 123extern int xfs_error_test(int, int *, char *, int, char *, unsigned long); 124 125#define XFS_NUM_INJECT_ERROR 10 126#define XFS_TEST_ERROR(expr, mp, tag, rf) \ 127 ((expr) || (xfs_error_test_active && \ 128 xfs_error_test((tag), (mp)->m_fixedfsid, "expr", __LINE__, __FILE__, \ 129 (rf)))) 130 131extern int xfs_errortag_add(int error_tag, struct xfs_mount *mp); 132extern int xfs_errortag_clearall(struct xfs_mount *mp, int loud); 133#else 134#define XFS_TEST_ERROR(expr, mp, tag, rf) (expr) 135#define xfs_errortag_add(tag, mp) (ENOSYS) 136#define xfs_errortag_clearall(mp, loud) (ENOSYS) 137#endif /* DEBUG */ 138 139/* 140 * XFS panic tags -- allow a call to xfs_alert_tag() be turned into 141 * a panic by setting xfs_panic_mask in a sysctl. 142 */ 143#define XFS_NO_PTAG 0 144#define XFS_PTAG_IFLUSH 0x00000001 145#define XFS_PTAG_LOGRES 0x00000002 146#define XFS_PTAG_AILDELETE 0x00000004 147#define XFS_PTAG_ERROR_REPORT 0x00000008 148#define XFS_PTAG_SHUTDOWN_CORRUPT 0x00000010 149#define XFS_PTAG_SHUTDOWN_IOERROR 0x00000020 150#define XFS_PTAG_SHUTDOWN_LOGERROR 0x00000040 151#define XFS_PTAG_FSBLOCK_ZERO 0x00000080 152 153#endif /* __XFS_ERROR_H__ */ 154