1// SPDX-License-Identifier: GPL-2.0 2/* 3 * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. 4 * All Rights Reserved. 5 */ 6#ifndef __XFS_ERROR_H__ 7#define __XFS_ERROR_H__ 8 9struct xfs_mount; 10 11extern void xfs_error_report(const char *tag, int level, struct xfs_mount *mp, 12 const char *filename, int linenum, 13 xfs_failaddr_t failaddr); 14extern void xfs_corruption_error(const char *tag, int level, 15 struct xfs_mount *mp, const void *buf, size_t bufsize, 16 const char *filename, int linenum, 17 xfs_failaddr_t failaddr); 18void xfs_buf_corruption_error(struct xfs_buf *bp, xfs_failaddr_t fa); 19extern void xfs_buf_verifier_error(struct xfs_buf *bp, int error, 20 const char *name, const void *buf, size_t bufsz, 21 xfs_failaddr_t failaddr); 22extern void xfs_verifier_error(struct xfs_buf *bp, int error, 23 xfs_failaddr_t failaddr); 24extern void xfs_inode_verifier_error(struct xfs_inode *ip, int error, 25 const char *name, const void *buf, size_t bufsz, 26 xfs_failaddr_t failaddr); 27 28#define XFS_ERROR_REPORT(e, lvl, mp) \ 29 xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address) 30#define XFS_CORRUPTION_ERROR(e, lvl, mp, buf, bufsize) \ 31 xfs_corruption_error(e, lvl, mp, buf, bufsize, \ 32 __FILE__, __LINE__, __return_address) 33 34#define XFS_ERRLEVEL_OFF 0 35#define XFS_ERRLEVEL_LOW 1 36#define XFS_ERRLEVEL_HIGH 5 37 38/* Dump 128 bytes of any corrupt buffer */ 39#define XFS_CORRUPTION_DUMP_LEN (128) 40 41#ifdef DEBUG 42extern int xfs_errortag_init(struct xfs_mount *mp); 43extern void xfs_errortag_del(struct xfs_mount *mp); 44extern bool xfs_errortag_test(struct xfs_mount *mp, const char *expression, 45 const char *file, int line, unsigned int error_tag); 46#define XFS_TEST_ERROR(expr, mp, tag) \ 47 ((expr) || xfs_errortag_test((mp), #expr, __FILE__, __LINE__, (tag))) 48bool xfs_errortag_enabled(struct xfs_mount *mp, unsigned int tag); 49#define XFS_ERRORTAG_DELAY(mp, tag) \ 50 do { \ 51 might_sleep(); \ 52 if (!xfs_errortag_enabled((mp), (tag))) \ 53 break; \ 54 xfs_warn_ratelimited((mp), \ 55"Injecting %ums delay at file %s, line %d, on filesystem \"%s\"", \ 56 (mp)->m_errortag[(tag)], __FILE__, __LINE__, \ 57 (mp)->m_super->s_id); \ 58 mdelay((mp)->m_errortag[(tag)]); \ 59 } while (0) 60 61extern int xfs_errortag_get(struct xfs_mount *mp, unsigned int error_tag); 62extern int xfs_errortag_set(struct xfs_mount *mp, unsigned int error_tag, 63 unsigned int tag_value); 64extern int xfs_errortag_add(struct xfs_mount *mp, unsigned int error_tag); 65extern int xfs_errortag_clearall(struct xfs_mount *mp); 66#else 67#define xfs_errortag_init(mp) (0) 68#define xfs_errortag_del(mp) 69#define XFS_TEST_ERROR(expr, mp, tag) (expr) 70#define XFS_ERRORTAG_DELAY(mp, tag) ((void)0) 71#define xfs_errortag_set(mp, tag, val) (ENOSYS) 72#define xfs_errortag_add(mp, tag) (ENOSYS) 73#define xfs_errortag_clearall(mp) (ENOSYS) 74#endif /* DEBUG */ 75 76/* 77 * XFS panic tags -- allow a call to xfs_alert_tag() be turned into 78 * a panic by setting fs.xfs.panic_mask in a sysctl. 79 */ 80#define XFS_NO_PTAG 0u 81#define XFS_PTAG_IFLUSH (1u << 0) 82#define XFS_PTAG_LOGRES (1u << 1) 83#define XFS_PTAG_AILDELETE (1u << 2) 84#define XFS_PTAG_ERROR_REPORT (1u << 3) 85#define XFS_PTAG_SHUTDOWN_CORRUPT (1u << 4) 86#define XFS_PTAG_SHUTDOWN_IOERROR (1u << 5) 87#define XFS_PTAG_SHUTDOWN_LOGERROR (1u << 6) 88#define XFS_PTAG_FSBLOCK_ZERO (1u << 7) 89#define XFS_PTAG_VERIFIER_ERROR (1u << 8) 90 91#define XFS_PTAG_MASK (XFS_PTAG_IFLUSH | \ 92 XFS_PTAG_LOGRES | \ 93 XFS_PTAG_AILDELETE | \ 94 XFS_PTAG_ERROR_REPORT | \ 95 XFS_PTAG_SHUTDOWN_CORRUPT | \ 96 XFS_PTAG_SHUTDOWN_IOERROR | \ 97 XFS_PTAG_SHUTDOWN_LOGERROR | \ 98 XFS_PTAG_FSBLOCK_ZERO | \ 99 XFS_PTAG_VERIFIER_ERROR) 100 101#define XFS_PTAG_STRINGS \ 102 { XFS_NO_PTAG, "none" }, \ 103 { XFS_PTAG_IFLUSH, "iflush" }, \ 104 { XFS_PTAG_LOGRES, "logres" }, \ 105 { XFS_PTAG_AILDELETE, "aildelete" }, \ 106 { XFS_PTAG_ERROR_REPORT , "error_report" }, \ 107 { XFS_PTAG_SHUTDOWN_CORRUPT, "corrupt" }, \ 108 { XFS_PTAG_SHUTDOWN_IOERROR, "ioerror" }, \ 109 { XFS_PTAG_SHUTDOWN_LOGERROR, "logerror" }, \ 110 { XFS_PTAG_FSBLOCK_ZERO, "fsb_zero" }, \ 111 { XFS_PTAG_VERIFIER_ERROR, "verifier" } 112 113#endif /* __XFS_ERROR_H__ */ 114