Subversion Repositories openrisc_2011-10-31

/*

 *  IMFS_mount

 *

 *  This routine will look at a mount table entry that we are going to

 *  add to the mount table. If the mount point rtems_filesystem

 *  location_info_t struct refers to a node that is a directory,

 *  the node will be marked as a mount point by setting its directory.mt_fs

 *  pointer to point to the mount table entry that we are about to add

 *  to the mount table chain.

 *

 *  COPYRIGHT (c) 1989-1999.

 *  On-Line Applications Research Corporation (OAR).

 *

 *  The license and distribution terms for this file may be

 *  found in the file LICENSE in this distribution or at

 *  http://www.OARcorp.com/rtems/license.html.

 *

 *  $Id: imfs_mount.c,v 1.2 2001-09-27 12:01:15 chris Exp $

 */

#include <errno.h>

#include "imfs.h"

#include "libio_.h"

int IMFS_mount(

  rtems_filesystem_mount_table_entry_t *mt_entry

)

{

  IMFS_jnode_t  *node;

  node = mt_entry->mt_point_node.node_access;

  /*

   *  Is the node that we are mounting onto a directory node ?

   */

  if ( node->type != IMFS_DIRECTORY )

    set_errno_and_return_minus_one( ENOTDIR );

  /*

   *  Set mt_fs pointer to point to the mount table entry for

   *  the mounted file system.

   */

  node->info.directory.mt_fs = mt_entry;

  return 0;

}