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Encumbrance review done.
Add copyright and license words consistent with GPL.
Refer to http://fsg.melbourne.sgi.com/reviews/ for details.

There is a slight change in the license terms and conditions words
to go with the copyrights, so most of the files are not getting
new GPL's, just updated versions ... but there are 20-30 more files
here as well.

/*
 * Copyright (C) 1999 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; either version 2 of the License, or (at
 * your option) any later version.
 * 
 * This program is distributed in the hope that it will 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., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
 */
#ifndef	_XFS_ERROR_H
#define	_XFS_ERROR_H

#ident "$Revision: 1.11 $"

#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

#endif	/* _XFS_ERROR_H */


/*
 * 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_MAX					17

/*
 * 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

#if !defined(SIM) && (defined(DEBUG) || defined(INDUCE_IO_ERROR))
extern int	xfs_error_test(int, int *, char *, int, char *, unsigned long);

#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, int fd);
int		xfs_errortag_clear(int error_tag, int fd);

int		xfs_errortag_clearall(int fd);
int		xfs_errortag_clearall_umount(int64_t fsid, char *fsname,
						int loud);
#else
#define XFS_TEST_ERROR(expr, mp, tag, rf)	(expr)
#endif /* !SIM && (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 the
 *			stune file.
 */
#define		XFS_NO_PTAG			0LL
#define		XFS_PTAG_IFLUSH			0x0000000000000001LL
#define 	XFS_PTAG_LOGRES			0x0000000000000002LL
#define 	XFS_PTAG_AILDELETE		0x0000000000000004LL

struct xfs_mount;
extern uint64_t	xfs_panic_mask;
/* PRINTFLIKE4 */
void		xfs_cmn_err(uint64_t panic_tag, int level, struct xfs_mount *mp,
			    char *fmt, ...);
/* PRINTFLIKE3 */
void		xfs_fs_cmn_err(int level, struct xfs_mount *mp, char *fmt, ...);