fs/xfs/xfs_error.h

   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
   9 struct xfs_mount;
  10
  11 extern void xfs_error_report(const char *tag, int level, struct xfs_mount *mp,
  12                         const char *filename, int linenum,
  13                         xfs_failaddr_t failaddr);
  14 extern 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);
  18 void xfs_buf_corruption_error(struct xfs_buf *bp, xfs_failaddr_t fa);
  19 extern 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);
  22 extern void xfs_verifier_error(struct xfs_buf *bp, int error,
  23                         xfs_failaddr_t failaddr);
  24 extern 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
  42 extern int xfs_errortag_init(struct xfs_mount *mp);
  43 extern void xfs_errortag_del(struct xfs_mount *mp);
  44 extern 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)))
  48
  49 extern int xfs_errortag_get(struct xfs_mount *mp, unsigned int error_tag);
  50 extern int xfs_errortag_set(struct xfs_mount *mp, unsigned int error_tag,
  51                 unsigned int tag_value);
  52 extern int xfs_errortag_add(struct xfs_mount *mp, unsigned int error_tag);
  53 extern int xfs_errortag_clearall(struct xfs_mount *mp);
  54 #else
  55 #define xfs_errortag_init(mp)                   (0)
  56 #define xfs_errortag_del(mp)
  57 #define XFS_TEST_ERROR(expr, mp, tag)           (expr)
  58 #define xfs_errortag_set(mp, tag, val)          (ENOSYS)
  59 #define xfs_errortag_add(mp, tag)               (ENOSYS)
  60 #define xfs_errortag_clearall(mp)               (ENOSYS)
  61 #endif /* DEBUG */
  62
  63 /*
  64  * XFS panic tags -- allow a call to xfs_alert_tag() be turned into
  65  *                      a panic by setting xfs_panic_mask in a sysctl.
  66  */
  67 #define         XFS_NO_PTAG                     0
  68 #define         XFS_PTAG_IFLUSH                 0x00000001
  69 #define         XFS_PTAG_LOGRES                 0x00000002
  70 #define         XFS_PTAG_AILDELETE              0x00000004
  71 #define         XFS_PTAG_ERROR_REPORT           0x00000008
  72 #define         XFS_PTAG_SHUTDOWN_CORRUPT       0x00000010
  73 #define         XFS_PTAG_SHUTDOWN_IOERROR       0x00000020
  74 #define         XFS_PTAG_SHUTDOWN_LOGERROR      0x00000040
  75 #define         XFS_PTAG_FSBLOCK_ZERO           0x00000080
  76 #define         XFS_PTAG_VERIFIER_ERROR         0x00000100
  77
  78 #endif  /* __XFS_ERROR_H__ */