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Rework the remount path to better seperate the linux vfs portion
and the xfs portion of it. Move the code to more appropriate
places in the tree.
Merge of 2.4.x-xfs:slinx:144140a originally by lord on 04/10/03
  change remount code so that it calls a vfs operation within
  XFS. reorganize the code underneath it. This better separates
  the linux vfs code and the xfs specific code and will let
  us enable more options on remount.
  no need for xfs_parseargs prototype or xfs_showargs

/*
 * Copyright (c) 2000-2003 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_SUPER_H__
#define __XFS_SUPER_H__

#ifdef CONFIG_XFS_DMAPI
# define vfs_insertdmapi(vfs)	vfs_insertops(vfsp, &xfs_dmops)
# define vfs_initdmapi()	dmapi_init()
# define vfs_exitdmapi()	dmapi_uninit()
#else
# define vfs_insertdmapi(vfs)	do { } while (0)
# define vfs_initdmapi()	do { } while (0)
# define vfs_exitdmapi()	do { } while (0)
#endif

#ifdef CONFIG_XFS_QUOTA
# define vfs_insertquota(vfs)	vfs_insertops(vfsp, &xfs_qmops)
# define vfs_initquota()	xfs_qm_init()
# define vfs_exitquota()	xfs_qm_exit()
#else
# define vfs_insertquota(vfs)	do { } while (0)
# define vfs_initquota()	do { } while (0)
# define vfs_exitquota()	do { } while (0)
#endif

#ifdef CONFIG_XFS_POSIX_ACL
# define XFS_ACL_STRING		"ACLs, "
# define set_posix_acl_flag(sb)	((sb)->s_flags |= MS_POSIXACL)
#else
# define XFS_ACL_STRING
# define set_posix_acl_flag(sb)	do { } while (0)
#endif

#ifdef CONFIG_XFS_RT
# define XFS_REALTIME_STRING	"realtime, "
#else
# define XFS_REALTIME_STRING
#endif

#ifdef CONFIG_XFS_VNODE_TRACING
# define XFS_VNTRACE_STRING	"VN-trace, "
#else
# define XFS_VNTRACE_STRING
#endif

#ifdef XFSDEBUG
# define XFS_DBG_STRING		"debug"
#else
# define XFS_DBG_STRING		"no debug"
#endif

#define XFS_BUILD_OPTIONS	XFS_ACL_STRING \
				XFS_REALTIME_STRING \
				XFS_VNTRACE_STRING \
				XFS_DBG_STRING /* DBG must be last */

#define LINVFS_GET_VFS(s) \
	(vfs_t *)((s)->s_fs_info)
#define LINVFS_SET_VFS(s, vfsp) \
	((s)->s_fs_info = vfsp)

struct xfs_mount;
struct pb_target;
struct block_device;

extern struct inode *xfs_get_inode(bhv_desc_t *, xfs_ino_t, int);
extern void xfs_initialize_vnode(bhv_desc_t *, vnode_t *, bhv_desc_t *, int);

extern int  xfs_blkdev_get(struct xfs_mount *, const char *,
				struct block_device **);
extern void xfs_blkdev_put(struct block_device *);

extern struct pb_target *xfs_alloc_buftarg(struct block_device *);
extern void xfs_relse_buftarg(struct pb_target *);
extern void xfs_free_buftarg(struct pb_target *);

extern void xfs_setsize_buftarg(struct pb_target *, unsigned int, unsigned int);
extern unsigned int xfs_getsize_buftarg(struct pb_target *);

#endif	/* __XFS_SUPER_H__ */