Release 4.15 fs/xfs/xfs_error.h

/*
 * 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, void *ra);
extern void xfs_corruption_error(const char *tag, int level,
			struct xfs_mount *mp, void *p, const char *filename,
			int linenum, void *ra);
extern void xfs_verifier_error(struct xfs_buf *bp);


#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

/*
 * 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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Directory: fs/xfs

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