fs/xfs/xfs_error.h - third_party/linux - Git at Google

 /*
  * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of version 2 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.
  *
  * Further, this software is distributed without any warranty that it is
  * free of the rightful claim of any third person regarding infringement
  * or the like.  Any license provided herein, whether implied or
  * otherwise, applies only to this software file.  Patent licenses, if
  * any, provided herein do not apply to combinations of this program with
  * other software, or any other product whatsoever.
  *
  * You should have received a copy of the GNU General Public License along
  * with this program; if not, write the Free Software Foundation, Inc., 59
  * Temple Place - Suite 330, Boston MA 02111-1307, USA.
  *
  * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
  * Mountain View, CA  94043, or:
  *
  * http://www.sgi.com
  *
  * For further information regarding this notice, see:
  *
  * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
  */
 #ifndef	__XFS_ERROR_H__
 #define	__XFS_ERROR_H__

 #define prdev(fmt,targ,args...) \
 	printk("XFS: device %s- " fmt "\n", XFS_BUFTARG_NAME(targ), ## args)

 #define XFS_ERECOVER	1	/* Failure to recover log */
 #define XFS_ELOGSTAT	2	/* Failure to stat log in user space */
 #define XFS_ENOLOGSPACE	3	/* Reservation too large */
 #define XFS_ENOTSUP	4	/* Operation not supported */
 #define	XFS_ENOLSN	5	/* Can't find the lsn you asked for */
 #define XFS_ENOTFOUND	6
 #define XFS_ENOTXFS	7	/* Not XFS filesystem */

 #ifdef DEBUG
 #define	XFS_ERROR_NTRAP	10
 extern int	xfs_etrap[XFS_ERROR_NTRAP];
 extern int	xfs_error_trap(int);
 #define	XFS_ERROR(e)	xfs_error_trap(e)
 #else
 #define	XFS_ERROR(e)	(e)
 #endif

 struct xfs_mount;

 extern void
 xfs_error_report(
 	char		*tag,
 	int		level,
 	struct xfs_mount *mp,
 	char		*fname,
 	int		linenum,
 	inst_t		*ra);

 extern void
 xfs_corruption_error(
 	char		*tag,
 	int		level,
 	struct xfs_mount *mp,
 	void		*p,
 	char		*fname,
 	int		linenum,
 	inst_t		*ra);

 extern void
 xfs_hex_dump(void *p, int length);

 #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

 /*
  * error injection tags - the labels can be anything you want
  * but each tag should have its own unique number
  */

 #define XFS_ERRTAG_NOERROR				0
 #define XFS_ERRTAG_IFLUSH_1				1
 #define XFS_ERRTAG_IFLUSH_2				2
 #define XFS_ERRTAG_IFLUSH_3				3
 #define XFS_ERRTAG_IFLUSH_4				4
 #define XFS_ERRTAG_IFLUSH_5				5
 #define XFS_ERRTAG_IFLUSH_6				6
 #define	XFS_ERRTAG_DA_READ_BUF				7
 #define	XFS_ERRTAG_BTREE_CHECK_LBLOCK			8
 #define	XFS_ERRTAG_BTREE_CHECK_SBLOCK			9
 #define	XFS_ERRTAG_ALLOC_READ_AGF			10
 #define	XFS_ERRTAG_IALLOC_READ_AGI			11
 #define	XFS_ERRTAG_ITOBP_INOTOBP			12
 #define	XFS_ERRTAG_IUNLINK				13
 #define	XFS_ERRTAG_IUNLINK_REMOVE			14
 #define	XFS_ERRTAG_DIR_INO_VALIDATE			15
 #define XFS_ERRTAG_BULKSTAT_READ_CHUNK			16
 #define XFS_ERRTAG_IODONE_IOERR				17
 #define XFS_ERRTAG_STRATREAD_IOERR			18
 #define XFS_ERRTAG_STRATCMPL_IOERR			19
 #define XFS_ERRTAG_DIOWRITE_IOERR			20
 #define XFS_ERRTAG_BMAPIFORMAT				21
 #define XFS_ERRTAG_MAX					22

 /*
  * Random factors for above tags, 1 means always, 2 means 1/2 time, etc.
  */
 #define XFS_RANDOM_DEFAULT				100
 #define XFS_RANDOM_IFLUSH_1				XFS_RANDOM_DEFAULT
 #define XFS_RANDOM_IFLUSH_2				XFS_RANDOM_DEFAULT
 #define XFS_RANDOM_IFLUSH_3				XFS_RANDOM_DEFAULT
 #define XFS_RANDOM_IFLUSH_4				XFS_RANDOM_DEFAULT
 #define XFS_RANDOM_IFLUSH_5				XFS_RANDOM_DEFAULT
 #define XFS_RANDOM_IFLUSH_6				XFS_RANDOM_DEFAULT
 #define XFS_RANDOM_DA_READ_BUF				XFS_RANDOM_DEFAULT
 #define XFS_RANDOM_BTREE_CHECK_LBLOCK			(XFS_RANDOM_DEFAULT/4)
 #define XFS_RANDOM_BTREE_CHECK_SBLOCK			XFS_RANDOM_DEFAULT
 #define XFS_RANDOM_ALLOC_READ_AGF			XFS_RANDOM_DEFAULT
 #define XFS_RANDOM_IALLOC_READ_AGI			XFS_RANDOM_DEFAULT
 #define XFS_RANDOM_ITOBP_INOTOBP			XFS_RANDOM_DEFAULT
 #define XFS_RANDOM_IUNLINK				XFS_RANDOM_DEFAULT
 #define XFS_RANDOM_IUNLINK_REMOVE			XFS_RANDOM_DEFAULT
 #define XFS_RANDOM_DIR_INO_VALIDATE			XFS_RANDOM_DEFAULT
 #define XFS_RANDOM_BULKSTAT_READ_CHUNK			XFS_RANDOM_DEFAULT
 #define XFS_RANDOM_IODONE_IOERR				(XFS_RANDOM_DEFAULT/10)
 #define XFS_RANDOM_STRATREAD_IOERR			(XFS_RANDOM_DEFAULT/10)
 #define XFS_RANDOM_STRATCMPL_IOERR			(XFS_RANDOM_DEFAULT/10)
 #define XFS_RANDOM_DIOWRITE_IOERR			(XFS_RANDOM_DEFAULT/10)
 #define	XFS_RANDOM_BMAPIFORMAT				XFS_RANDOM_DEFAULT

 #if (defined(DEBUG) || defined(INDUCE_IO_ERROR))
 extern int	xfs_error_test(int, int *, char *, int, char *, unsigned long);
 void xfs_error_test_init(void);

 #define	XFS_NUM_INJECT_ERROR				10

 #ifdef __ANSI_CPP__
 #define XFS_TEST_ERROR(expr, mp, tag, rf)		\
 	((expr) || \
 	 xfs_error_test((tag), (mp)->m_fixedfsid, #expr, __LINE__, __FILE__, \
 			 (rf)))
 #else
 #define XFS_TEST_ERROR(expr, mp, tag, rf)		\
 	((expr) || \
 	 xfs_error_test((tag), (mp)->m_fixedfsid, "expr", __LINE__, __FILE__, \
 			(rf)))
 #endif /* __ANSI_CPP__ */

 int		xfs_errortag_add(int error_tag, xfs_mount_t *mp);
 int		xfs_errortag_clear(int error_tag, xfs_mount_t *mp);

 int		xfs_errortag_clearall(xfs_mount_t *mp);
 int		xfs_errortag_clearall_umount(int64_t fsid, char *fsname,
 						int loud);
 #else
 #define XFS_TEST_ERROR(expr, mp, tag, rf)	(expr)
 #define xfs_errortag_add(tag, mp)		(ENOSYS)
 #define xfs_errortag_clearall(mp)		(ENOSYS)
 #endif /* (DEBUG || INDUCE_IO_ERROR) */

 /*
  * XFS panic tags -- allow a call to xfs_cmn_err() be turned into
  *			a panic by setting xfs_panic_mask in a
  *			sysctl.  update xfs_max[XFS_PARAM] if
  *			more are added.
  */
 #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

 struct xfs_mount;
 /* PRINTFLIKE4 */
 void		xfs_cmn_err(int panic_tag, int level, struct xfs_mount *mp,
 			    char *fmt, ...);
 /* PRINTFLIKE3 */
 void		xfs_fs_cmn_err(int level, struct xfs_mount *mp, char *fmt, ...);

 #endif	/* __XFS_ERROR_H__ */
	/*
	* Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved.
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms of version 2 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.
	*
	* Further, this software is distributed without any warranty that it is
	* free of the rightful claim of any third person regarding infringement
	* or the like. Any license provided herein, whether implied or
	* otherwise, applies only to this software file. Patent licenses, if
	* any, provided herein do not apply to combinations of this program with
	* other software, or any other product whatsoever.
	*
	* You should have received a copy of the GNU General Public License along
	* with this program; if not, write the Free Software Foundation, Inc., 59
	* Temple Place - Suite 330, Boston MA 02111-1307, USA.
	*
	* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
	* Mountain View, CA 94043, or:
	*
	* http://www.sgi.com
	*
	* For further information regarding this notice, see:
	*
	* http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
	*/
	#ifndef __XFS_ERROR_H__
	#define __XFS_ERROR_H__

	#define prdev(fmt,targ,args...) \
	printk("XFS: device %s- " fmt "\n", XFS_BUFTARG_NAME(targ), ## args)

	#define XFS_ERECOVER 1 /* Failure to recover log */
	#define XFS_ELOGSTAT 2 /* Failure to stat log in user space */
	#define XFS_ENOLOGSPACE 3 /* Reservation too large */
	#define XFS_ENOTSUP 4 /* Operation not supported */
	#define XFS_ENOLSN 5 /* Can't find the lsn you asked for */
	#define XFS_ENOTFOUND 6
	#define XFS_ENOTXFS 7 /* Not XFS filesystem */

	#ifdef DEBUG
	#define XFS_ERROR_NTRAP 10
	extern int xfs_etrap[XFS_ERROR_NTRAP];
	extern int xfs_error_trap(int);
	#define XFS_ERROR(e) xfs_error_trap(e)
	#else
	#define XFS_ERROR(e) (e)
	#endif

	struct xfs_mount;

	extern void
	xfs_error_report(
	char *tag,
	int level,
	struct xfs_mount *mp,
	char *fname,
	int linenum,
	inst_t *ra);

	extern void
	xfs_corruption_error(
	char *tag,
	int level,
	struct xfs_mount *mp,
	void *p,
	char *fname,
	int linenum,
	inst_t *ra);

	extern void
	xfs_hex_dump(void *p, int length);

	#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

	/*
	* error injection tags - the labels can be anything you want
	* but each tag should have its own unique number
	*/

	#define XFS_ERRTAG_NOERROR 0
	#define XFS_ERRTAG_IFLUSH_1 1
	#define XFS_ERRTAG_IFLUSH_2 2
	#define XFS_ERRTAG_IFLUSH_3 3
	#define XFS_ERRTAG_IFLUSH_4 4
	#define XFS_ERRTAG_IFLUSH_5 5
	#define XFS_ERRTAG_IFLUSH_6 6
	#define XFS_ERRTAG_DA_READ_BUF 7
	#define XFS_ERRTAG_BTREE_CHECK_LBLOCK 8
	#define XFS_ERRTAG_BTREE_CHECK_SBLOCK 9
	#define XFS_ERRTAG_ALLOC_READ_AGF 10
	#define XFS_ERRTAG_IALLOC_READ_AGI 11
	#define XFS_ERRTAG_ITOBP_INOTOBP 12
	#define XFS_ERRTAG_IUNLINK 13
	#define XFS_ERRTAG_IUNLINK_REMOVE 14
	#define XFS_ERRTAG_DIR_INO_VALIDATE 15
	#define XFS_ERRTAG_BULKSTAT_READ_CHUNK 16
	#define XFS_ERRTAG_IODONE_IOERR 17
	#define XFS_ERRTAG_STRATREAD_IOERR 18
	#define XFS_ERRTAG_STRATCMPL_IOERR 19
	#define XFS_ERRTAG_DIOWRITE_IOERR 20
	#define XFS_ERRTAG_BMAPIFORMAT 21
	#define XFS_ERRTAG_MAX 22

	/*
	* Random factors for above tags, 1 means always, 2 means 1/2 time, etc.
	*/
	#define XFS_RANDOM_DEFAULT 100
	#define XFS_RANDOM_IFLUSH_1 XFS_RANDOM_DEFAULT
	#define XFS_RANDOM_IFLUSH_2 XFS_RANDOM_DEFAULT
	#define XFS_RANDOM_IFLUSH_3 XFS_RANDOM_DEFAULT
	#define XFS_RANDOM_IFLUSH_4 XFS_RANDOM_DEFAULT
	#define XFS_RANDOM_IFLUSH_5 XFS_RANDOM_DEFAULT
	#define XFS_RANDOM_IFLUSH_6 XFS_RANDOM_DEFAULT
	#define XFS_RANDOM_DA_READ_BUF XFS_RANDOM_DEFAULT
	#define XFS_RANDOM_BTREE_CHECK_LBLOCK (XFS_RANDOM_DEFAULT/4)
	#define XFS_RANDOM_BTREE_CHECK_SBLOCK XFS_RANDOM_DEFAULT
	#define XFS_RANDOM_ALLOC_READ_AGF XFS_RANDOM_DEFAULT
	#define XFS_RANDOM_IALLOC_READ_AGI XFS_RANDOM_DEFAULT
	#define XFS_RANDOM_ITOBP_INOTOBP XFS_RANDOM_DEFAULT
	#define XFS_RANDOM_IUNLINK XFS_RANDOM_DEFAULT
	#define XFS_RANDOM_IUNLINK_REMOVE XFS_RANDOM_DEFAULT
	#define XFS_RANDOM_DIR_INO_VALIDATE XFS_RANDOM_DEFAULT
	#define XFS_RANDOM_BULKSTAT_READ_CHUNK XFS_RANDOM_DEFAULT
	#define XFS_RANDOM_IODONE_IOERR (XFS_RANDOM_DEFAULT/10)
	#define XFS_RANDOM_STRATREAD_IOERR (XFS_RANDOM_DEFAULT/10)
	#define XFS_RANDOM_STRATCMPL_IOERR (XFS_RANDOM_DEFAULT/10)
	#define XFS_RANDOM_DIOWRITE_IOERR (XFS_RANDOM_DEFAULT/10)
	#define XFS_RANDOM_BMAPIFORMAT XFS_RANDOM_DEFAULT

	#if (defined(DEBUG) \|\| defined(INDUCE_IO_ERROR))
	extern int xfs_error_test(int, int , char , int, char *, unsigned long);
	void xfs_error_test_init(void);

	#define XFS_NUM_INJECT_ERROR 10

	#ifdef __ANSI_CPP__
	#define XFS_TEST_ERROR(expr, mp, tag, rf) \
	((expr) \|\| \
	xfs_error_test((tag), (mp)->m_fixedfsid, #expr, __LINE__, __FILE__, \
	(rf)))
	#else
	#define XFS_TEST_ERROR(expr, mp, tag, rf) \
	((expr) \|\| \
	xfs_error_test((tag), (mp)->m_fixedfsid, "expr", __LINE__, __FILE__, \
	(rf)))
	#endif /* __ANSI_CPP__ */

	int xfs_errortag_add(int error_tag, xfs_mount_t *mp);
	int xfs_errortag_clear(int error_tag, xfs_mount_t *mp);

	int xfs_errortag_clearall(xfs_mount_t *mp);
	int xfs_errortag_clearall_umount(int64_t fsid, char *fsname,
	int loud);
	#else
	#define XFS_TEST_ERROR(expr, mp, tag, rf) (expr)
	#define xfs_errortag_add(tag, mp) (ENOSYS)
	#define xfs_errortag_clearall(mp) (ENOSYS)
	#endif /* (DEBUG \|\| INDUCE_IO_ERROR) */

	/*
	* XFS panic tags -- allow a call to xfs_cmn_err() be turned into
	* a panic by setting xfs_panic_mask in a
	* sysctl. update xfs_max[XFS_PARAM] if
	* more are added.
	*/
	#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

	struct xfs_mount;
	/* PRINTFLIKE4 */
	void xfs_cmn_err(int panic_tag, int level, struct xfs_mount *mp,
	char *fmt, ...);
	/* PRINTFLIKE3 */
	void xfs_fs_cmn_err(int level, struct xfs_mount mp, char fmt, ...);

	#endif /* __XFS_ERROR_H__ */