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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 _FS_XFS_DIR2_H
#define	_FS_XFS_DIR2_H

#ident 	"$Revision: 1.1 $"

/*
 * xfs_dir2.h
 */

struct dirent;
struct uio;
struct xfs_dabuf;
struct xfs_da_args;
struct xfs_dir2_put_args;
struct xfs_inode;
struct xfs_trans;

/*
 * Directory version 2.
 * There are 4 possible formats:
 *	shortform
 *	single block - data with embedded leaf at the end
 *	multiple data blocks, single leaf+freeindex block
 *	data blocks, node&leaf blocks (btree), freeindex blocks
 *
 *	The shortform format is in xfs_dir2_sf.h.
 *	The single block format is in xfs_dir2_block.h.
 *	The data block format is in xfs_dir2_data.h.
 *	The leaf and freeindex block formats are in xfs_dir2_leaf.h.
 *	Node blocks are the same as the other version, in xfs_da_btree.h.
 */

/*
 * Byte offset in data block and shortform entry.
 */
typedef	__uint16_t	xfs_dir2_data_off_t;
#define	NULLDATAOFF	0xffffU
typedef uint		xfs_dir2_data_aoff_t;	/* argument form */

/*
 * Directory block number (logical dirblk in file)
 */
typedef	__uint32_t	xfs_dir2_db_t;

/*
 * Byte offset in a directory.
 */
typedef	off64_t		xfs_dir2_off_t;

/*
 * For getdents, argument struct for put routines.
 */
typedef int (*xfs_dir2_put_t)(struct xfs_dir2_put_args *pa);
typedef struct xfs_dir2_put_args {
	off_t		cook;		/* cookie of (next) entry */
	xfs_intino_t	ino;		/* inode number */
	struct dirent	*dbp;		/* buffer pointer */
	char		*name;		/* directory entry name */
	int		namelen;	/* length of name */
	int		done;		/* output: set if value was stored */
	xfs_dir2_put_t	put;		/* put function ptr (i/o) */
	struct uio	*uio;		/* uio control structure */
} xfs_dir2_put_args_t;

#define	XFS_DIR_IS_V2(mp)	((mp)->m_dirversion == 2)
extern xfs_dirops_t	xfsv2_dirops;

/*
 * Other interfaces used by the rest of the dir v2 code.
 */
extern int
	xfs_dir2_grow_inode(struct xfs_da_args *args, int space,
			    xfs_dir2_db_t *dbp);

extern int
	xfs_dir2_isblock(struct xfs_trans *tp, struct xfs_inode *dp, int *vp);

extern int
	xfs_dir2_isleaf(struct xfs_trans *tp, struct xfs_inode *dp, int *vp);

#if defined(XFS_REPAIR_SIM) || !defined(SIM)
extern int
	xfs_dir2_shrink_inode(struct xfs_da_args *args, xfs_dir2_db_t db,
			      struct xfs_dabuf *bp);
#endif /* XFS_REPAIR_SIM || !SIM */

#endif	/* !_FS_XFS_DIR2_H */