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/*
* Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#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, void *p, const char *filename,
int linenum, xfs_failaddr_t failaddr);
extern void xfs_verifier_error(struct xfs_buf *bp, int error,
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, mem) \
xfs_corruption_error(e, lvl, mp, mem, \
__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)
/*
* Macros to set EFSCORRUPTED & return/branch.
*/
#define XFS_WANT_CORRUPTED_GOTO(mp, x, l) \
{ \
int fs_is_ok = (x); \
ASSERT(fs_is_ok); \
if (unlikely(!fs_is_ok)) { \
XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_GOTO", \
XFS_ERRLEVEL_LOW, mp); \
error = -EFSCORRUPTED; \
goto l; \
} \
}
#define XFS_WANT_CORRUPTED_RETURN(mp, x) \
{ \
int fs_is_ok = (x); \
ASSERT(fs_is_ok); \
if (unlikely(!fs_is_ok)) { \
XFS_ERROR_REPORT("XFS_WANT_CORRUPTED_RETURN", \
XFS_ERRLEVEL_LOW, mp); \
return -EFSCORRUPTED; \
} \
}
#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
#endif /* __XFS_ERROR_H__ */
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