[deliverable/linux.git] / fs / xfs / 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);

#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__ */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved.
	3	*
	4	* This program is free software; you can redistribute it and/or modify it
	5	* under the terms of version 2 of the GNU General Public License as
	6	* published by the Free Software Foundation.
	7	*
	8	* This program is distributed in the hope that it would be useful, but
	9	* WITHOUT ANY WARRANTY; without even the implied warranty of
	10	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
	11	*
	12	* Further, this software is distributed without any warranty that it is
	13	* free of the rightful claim of any third person regarding infringement
	14	* or the like. Any license provided herein, whether implied or
	15	* otherwise, applies only to this software file. Patent licenses, if
	16	* any, provided herein do not apply to combinations of this program with
	17	* other software, or any other product whatsoever.
	18	*
	19	* You should have received a copy of the GNU General Public License along
	20	* with this program; if not, write the Free Software Foundation, Inc., 59
	21	* Temple Place - Suite 330, Boston MA 02111-1307, USA.
	22	*
	23	* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
	24	* Mountain View, CA 94043, or:
	25	*
	26	* http://www.sgi.com
	27	*
	28	* For further information regarding this notice, see:
	29	*
	30	* http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
	31	*/
	32	#ifndef __XFS_ERROR_H__
	33	#define __XFS_ERROR_H__
	34
	35	#define prdev(fmt,targ,args...) \
	36	printk("XFS: device %s- " fmt "\n", XFS_BUFTARG_NAME(targ), ## args)
	37
	38	#define XFS_ERECOVER 1 /* Failure to recover log */
	39	#define XFS_ELOGSTAT 2 /* Failure to stat log in user space */
	40	#define XFS_ENOLOGSPACE 3 /* Reservation too large */
	41	#define XFS_ENOTSUP 4 /* Operation not supported */
	42	#define XFS_ENOLSN 5 /* Can't find the lsn you asked for */
	43	#define XFS_ENOTFOUND 6
	44	#define XFS_ENOTXFS 7 /* Not XFS filesystem */
	45
	46	#ifdef DEBUG
	47	#define XFS_ERROR_NTRAP 10
	48	extern int xfs_etrap[XFS_ERROR_NTRAP];
	49	extern int xfs_error_trap(int);
	50	#define XFS_ERROR(e) xfs_error_trap(e)
	51	#else
	52	#define XFS_ERROR(e) (e)
	53	#endif
	54
	55	struct xfs_mount;
	56
	57	extern void
	58	xfs_error_report(
	59	char *tag,
	60	int level,
	61	struct xfs_mount *mp,
	62	char *fname,
	63	int linenum,
	64	inst_t *ra);
65
66	extern void
67	xfs_corruption_error(
68	char *tag,
69	int level,
70	struct xfs_mount *mp,
71	void *p,
72	char *fname,
73	int linenum,
74	inst_t *ra);
75
1da177e4 LT	76	#define XFS_ERROR_REPORT(e, lvl, mp) \
	77	xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address)
	78	#define XFS_CORRUPTION_ERROR(e, lvl, mp, mem) \
	79	xfs_corruption_error(e, lvl, mp, mem, \
	80	__FILE__, __LINE__, __return_address)
	81
	82	#define XFS_ERRLEVEL_OFF 0
	83	#define XFS_ERRLEVEL_LOW 1
	84	#define XFS_ERRLEVEL_HIGH 5
	85
	86	/*
	87	* error injection tags - the labels can be anything you want
	88	* but each tag should have its own unique number
	89	*/
	90
	91	#define XFS_ERRTAG_NOERROR 0
	92	#define XFS_ERRTAG_IFLUSH_1 1
	93	#define XFS_ERRTAG_IFLUSH_2 2
	94	#define XFS_ERRTAG_IFLUSH_3 3
	95	#define XFS_ERRTAG_IFLUSH_4 4
	96	#define XFS_ERRTAG_IFLUSH_5 5
	97	#define XFS_ERRTAG_IFLUSH_6 6
	98	#define XFS_ERRTAG_DA_READ_BUF 7
	99	#define XFS_ERRTAG_BTREE_CHECK_LBLOCK 8
	100	#define XFS_ERRTAG_BTREE_CHECK_SBLOCK 9
	101	#define XFS_ERRTAG_ALLOC_READ_AGF 10
	102	#define XFS_ERRTAG_IALLOC_READ_AGI 11
	103	#define XFS_ERRTAG_ITOBP_INOTOBP 12
	104	#define XFS_ERRTAG_IUNLINK 13
	105	#define XFS_ERRTAG_IUNLINK_REMOVE 14
	106	#define XFS_ERRTAG_DIR_INO_VALIDATE 15
	107	#define XFS_ERRTAG_BULKSTAT_READ_CHUNK 16
	108	#define XFS_ERRTAG_IODONE_IOERR 17
	109	#define XFS_ERRTAG_STRATREAD_IOERR 18
	110	#define XFS_ERRTAG_STRATCMPL_IOERR 19
	111	#define XFS_ERRTAG_DIOWRITE_IOERR 20
	112	#define XFS_ERRTAG_BMAPIFORMAT 21
	113	#define XFS_ERRTAG_MAX 22
	114
	115	/*
	116	* Random factors for above tags, 1 means always, 2 means 1/2 time, etc.
	117	*/
	118	#define XFS_RANDOM_DEFAULT 100
	119	#define XFS_RANDOM_IFLUSH_1 XFS_RANDOM_DEFAULT
	120	#define XFS_RANDOM_IFLUSH_2 XFS_RANDOM_DEFAULT
	121	#define XFS_RANDOM_IFLUSH_3 XFS_RANDOM_DEFAULT
	122	#define XFS_RANDOM_IFLUSH_4 XFS_RANDOM_DEFAULT
	123	#define XFS_RANDOM_IFLUSH_5 XFS_RANDOM_DEFAULT
	124	#define XFS_RANDOM_IFLUSH_6 XFS_RANDOM_DEFAULT
	125	#define XFS_RANDOM_DA_READ_BUF XFS_RANDOM_DEFAULT
	126	#define XFS_RANDOM_BTREE_CHECK_LBLOCK (XFS_RANDOM_DEFAULT/4)
	127	#define XFS_RANDOM_BTREE_CHECK_SBLOCK XFS_RANDOM_DEFAULT
	128	#define XFS_RANDOM_ALLOC_READ_AGF XFS_RANDOM_DEFAULT
	129	#define XFS_RANDOM_IALLOC_READ_AGI XFS_RANDOM_DEFAULT
	130	#define XFS_RANDOM_ITOBP_INOTOBP XFS_RANDOM_DEFAULT
	131	#define XFS_RANDOM_IUNLINK XFS_RANDOM_DEFAULT
	132	#define XFS_RANDOM_IUNLINK_REMOVE XFS_RANDOM_DEFAULT
	133	#define XFS_RANDOM_DIR_INO_VALIDATE XFS_RANDOM_DEFAULT
	134	#define XFS_RANDOM_BULKSTAT_READ_CHUNK XFS_RANDOM_DEFAULT
	135	#define XFS_RANDOM_IODONE_IOERR (XFS_RANDOM_DEFAULT/10)
	136	#define XFS_RANDOM_STRATREAD_IOERR (XFS_RANDOM_DEFAULT/10)
	137	#define XFS_RANDOM_STRATCMPL_IOERR (XFS_RANDOM_DEFAULT/10)
	138	#define XFS_RANDOM_DIOWRITE_IOERR (XFS_RANDOM_DEFAULT/10)
	139	#define XFS_RANDOM_BMAPIFORMAT XFS_RANDOM_DEFAULT
140
141	#if (defined(DEBUG) \|\| defined(INDUCE_IO_ERROR))
142	extern int xfs_error_test(int, int , char , int, char *, unsigned long);
143	void xfs_error_test_init(void);
144
145	#define XFS_NUM_INJECT_ERROR 10
146
147	#ifdef __ANSI_CPP__
148	#define XFS_TEST_ERROR(expr, mp, tag, rf) \
149	((expr) \|\| \
150	xfs_error_test((tag), (mp)->m_fixedfsid, #expr, __LINE__, __FILE__, \
151	(rf)))
152	#else
153	#define XFS_TEST_ERROR(expr, mp, tag, rf) \
154	((expr) \|\| \
155	xfs_error_test((tag), (mp)->m_fixedfsid, "expr", __LINE__, __FILE__, \
156	(rf)))
157	#endif /* __ANSI_CPP__ */
158
159	int xfs_errortag_add(int error_tag, xfs_mount_t *mp);
160	int xfs_errortag_clear(int error_tag, xfs_mount_t *mp);
161
162	int xfs_errortag_clearall(xfs_mount_t *mp);
163	int xfs_errortag_clearall_umount(int64_t fsid, char *fsname,
164	int loud);
165	#else
166	#define XFS_TEST_ERROR(expr, mp, tag, rf) (expr)
167	#define xfs_errortag_add(tag, mp) (ENOSYS)
168	#define xfs_errortag_clearall(mp) (ENOSYS)
169	#endif /* (DEBUG \|\| INDUCE_IO_ERROR) */
170
171	/*
172	* XFS panic tags -- allow a call to xfs_cmn_err() be turned into
173	* a panic by setting xfs_panic_mask in a
174	* sysctl. update xfs_max[XFS_PARAM] if
175	* more are added.
176	*/
177	#define XFS_NO_PTAG 0
178	#define XFS_PTAG_IFLUSH 0x00000001
179	#define XFS_PTAG_LOGRES 0x00000002
180	#define XFS_PTAG_AILDELETE 0x00000004
181	#define XFS_PTAG_ERROR_REPORT 0x00000008
182	#define XFS_PTAG_SHUTDOWN_CORRUPT 0x00000010
183	#define XFS_PTAG_SHUTDOWN_IOERROR 0x00000020
184	#define XFS_PTAG_SHUTDOWN_LOGERROR 0x00000040
185
186	struct xfs_mount;
187	/* PRINTFLIKE4 */
188	void xfs_cmn_err(int panic_tag, int level, struct xfs_mount *mp,
189	char *fmt, ...);
190	/* PRINTFLIKE3 */
191	void xfs_fs_cmn_err(int level, struct xfs_mount mp, char fmt, ...);
192
193	#endif /* __XFS_ERROR_H__ */