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decontaminate vnode operations from behavior details

All vnode ops now take struct xfs_inode pointers and the behaviour
related glue is split out into methods of it's own.  This required
fixing xfs_create/mkdir/symlink to not mess with the inode pointer
but rather use a separate boolean for error handling.  Thanks to
Dave Chinner for that fix.


Signed-off-by: Christoph Hellwig <hch@lst.de>
Merge of xfs-linux-melb:xfs-kern:29492a by kenmcd.

  convert vnode ops to take xfs_inode pointers and separate out
  behaviour related glue.

/*
 * 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_UTILS_H__
#define __XFS_UTILS_H__

#define IRELE(ip)	VN_RELE(XFS_ITOV(ip))
#define IHOLD(ip)	VN_HOLD(XFS_ITOV(ip))
#define	ITRACE(ip)	vn_trace_ref(XFS_ITOV(ip), __FILE__, __LINE__, \
				(inst_t *)__return_address)

extern int xfs_get_dir_entry (bhv_vname_t *, xfs_inode_t **);
extern int xfs_dir_lookup_int (xfs_inode_t *, uint, bhv_vname_t *, xfs_ino_t *,
				xfs_inode_t **);
extern int xfs_truncate_file (xfs_mount_t *, xfs_inode_t *);
extern int xfs_dir_ialloc (xfs_trans_t **, xfs_inode_t *, mode_t, xfs_nlink_t,
				xfs_dev_t, cred_t *, prid_t, int,
				xfs_inode_t **, int *);
extern int xfs_droplink (xfs_trans_t *, xfs_inode_t *);
extern int xfs_bumplink (xfs_trans_t *, xfs_inode_t *);
extern void xfs_bump_ino_vers2 (xfs_trans_t *, xfs_inode_t *);

#endif	/* __XFS_UTILS_H__ */