linux/fs/xfs/xfs_error.h
Darrick J. Wong e83cf875d6 xfs: xfs_buf_corruption_error should take __this_address
Add a xfs_failaddr_t parameter to this function so that callers can
potentially pass in (and therefore report) the exact point in the code
where we decided that a metadata buffer was corrupt.  This enables us to
wire it up to checking functions that have to run outside of verifiers.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-03-12 07:58:12 -07:00

79 lines
2.9 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
* All Rights Reserved.
*/
#ifndef __XFS_ERROR_H__
#define __XFS_ERROR_H__
struct xfs_mount;
extern void xfs_error_report(const char *tag, int level, struct xfs_mount *mp,
const char *filename, int linenum,
xfs_failaddr_t failaddr);
extern void xfs_corruption_error(const char *tag, int level,
struct xfs_mount *mp, const void *buf, size_t bufsize,
const char *filename, int linenum,
xfs_failaddr_t failaddr);
void xfs_buf_corruption_error(struct xfs_buf *bp, xfs_failaddr_t fa);
extern void xfs_buf_verifier_error(struct xfs_buf *bp, int error,
const char *name, const void *buf, size_t bufsz,
xfs_failaddr_t failaddr);
extern void xfs_verifier_error(struct xfs_buf *bp, int error,
xfs_failaddr_t failaddr);
extern void xfs_inode_verifier_error(struct xfs_inode *ip, int error,
const char *name, const void *buf, size_t bufsz,
xfs_failaddr_t failaddr);
#define XFS_ERROR_REPORT(e, lvl, mp) \
xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address)
#define XFS_CORRUPTION_ERROR(e, lvl, mp, buf, bufsize) \
xfs_corruption_error(e, lvl, mp, buf, bufsize, \
__FILE__, __LINE__, __return_address)
#define XFS_ERRLEVEL_OFF 0
#define XFS_ERRLEVEL_LOW 1
#define XFS_ERRLEVEL_HIGH 5
/* Dump 128 bytes of any corrupt buffer */
#define XFS_CORRUPTION_DUMP_LEN (128)
#ifdef DEBUG
extern int xfs_errortag_init(struct xfs_mount *mp);
extern void xfs_errortag_del(struct xfs_mount *mp);
extern bool xfs_errortag_test(struct xfs_mount *mp, const char *expression,
const char *file, int line, unsigned int error_tag);
#define XFS_TEST_ERROR(expr, mp, tag) \
((expr) || xfs_errortag_test((mp), #expr, __FILE__, __LINE__, (tag)))
extern int xfs_errortag_get(struct xfs_mount *mp, unsigned int error_tag);
extern int xfs_errortag_set(struct xfs_mount *mp, unsigned int error_tag,
unsigned int tag_value);
extern int xfs_errortag_add(struct xfs_mount *mp, unsigned int error_tag);
extern int xfs_errortag_clearall(struct xfs_mount *mp);
#else
#define xfs_errortag_init(mp) (0)
#define xfs_errortag_del(mp)
#define XFS_TEST_ERROR(expr, mp, tag) (expr)
#define xfs_errortag_set(mp, tag, val) (ENOSYS)
#define xfs_errortag_add(mp, tag) (ENOSYS)
#define xfs_errortag_clearall(mp) (ENOSYS)
#endif /* DEBUG */
/*
* XFS panic tags -- allow a call to xfs_alert_tag() be turned into
* a panic by setting xfs_panic_mask in a sysctl.
*/
#define XFS_NO_PTAG 0
#define XFS_PTAG_IFLUSH 0x00000001
#define XFS_PTAG_LOGRES 0x00000002
#define XFS_PTAG_AILDELETE 0x00000004
#define XFS_PTAG_ERROR_REPORT 0x00000008
#define XFS_PTAG_SHUTDOWN_CORRUPT 0x00000010
#define XFS_PTAG_SHUTDOWN_IOERROR 0x00000020
#define XFS_PTAG_SHUTDOWN_LOGERROR 0x00000040
#define XFS_PTAG_FSBLOCK_ZERO 0x00000080
#define XFS_PTAG_VERIFIER_ERROR 0x00000100
#endif /* __XFS_ERROR_H__ */