/*
   *   fs/cifs/export.c
   *
   *   Copyright (C) International Business Machines  Corp., 2007
   *   Author(s): Steve French (sfrench@us.ibm.com)
   *
   *   Common Internet FileSystem (CIFS) client

   *

   *   Operations related to support for exporting files via NFSD
   *
   *   This library is free software; you can redistribute it and/or modify
   *   it under the terms of the GNU Lesser General Public License as published
   *   by the Free Software Foundation; either version 2.1 of the License, or
   *   (at your option) any later version.
   *
   *   This library 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 Lesser General Public License for more details.
   *
   *   You should have received a copy of the GNU Lesser General Public License
   *   along with this library; if not, write to the Free Software
   *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
   */

   /*

    * See Documentation/filesystems/nfs/Exporting

    * and examples in fs/exportfs

    *
    * Since cifs is a network file system, an "fsid" must be included for
    * any nfs exports file entries which refer to cifs paths.  In addition
    * the cifs mount must be mounted with the "serverino" option (ie use stable
    * server inode numbers instead of locally generated temporary ones).
    * Although cifs inodes do not use generation numbers (have generation number
    * of zero) - the inode number alone should be good enough for simple cases
    * in which users want to export cifs shares with NFS. The decode and encode
    * could be improved by using a new routine which expects 64 bit inode numbers
    * instead of the default 32 bit routines in fs/exportfs
    *

    */
  
  #include <linux/fs.h>

  #include <linux/exportfs.h>

  #include "cifsglob.h"
  #include "cifs_debug.h"

  #include "cifsfs.h"

  #ifdef CONFIG_CIFS_NFSD_EXPORT

  static struct dentry *cifs_get_parent(struct dentry *dentry)
  {

  	/* BB need to add code here eventually to enable export via NFSD */

  	cifs_dbg(FYI, "get parent for %p
  ", dentry);

  	return ERR_PTR(-EACCES);

  }

  const struct export_operations cifs_export_ops = {

  	.get_parent = cifs_get_parent,
  /*	Following five export operations are unneeded so far and can default:
  	.get_dentry =
  	.get_name =
  	.find_exported_dentry =
  	.decode_fh =
  	.encode_fs =  */
  };

  #endif /* CONFIG_CIFS_NFSD_EXPORT */