LXR linux/fs/xfs/xfs

   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)))
  48
  49extern int xfs_errortag_get(struct xfs_mount *mp, unsigned int error_tag);
  50extern int xfs_errortag_set(struct xfs_mount *mp, unsigned int error_tag,
  51                unsigned int tag_value);
  52extern int xfs_errortag_add(struct xfs_mount *mp, unsigned int error_tag);
  53extern 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#define XFS_PTAG_STRINGS \
  79        { XFS_NO_PTAG,                  "none" }, \
  80        { XFS_PTAG_IFLUSH,              "iflush" }, \
  81        { XFS_PTAG_LOGRES,              "logres" }, \
  82        { XFS_PTAG_AILDELETE,           "aildelete" }, \
  83        { XFS_PTAG_ERROR_REPORT ,       "error_report" }, \
  84        { XFS_PTAG_SHUTDOWN_CORRUPT,    "corrupt" }, \
  85        { XFS_PTAG_SHUTDOWN_IOERROR,    "ioerror" }, \
  86        { XFS_PTAG_SHUTDOWN_LOGERROR,   "logerror" }, \
  87        { XFS_PTAG_FSBLOCK_ZERO,        "fsb_zero" }, \
  88        { XFS_PTAG_VERIFIER_ERROR,      "verifier" }
  89
  90#endif  /* __XFS_ERROR_H__ */
  91