text: /*
   * Copyright (c) 1989, 1993
   *	The Regents of the University of California.  All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. All advertising materials mentioning features or use of this software
   *    must display the following acknowledgement:
   *	This product includes software developed by the University of
   *	California, Berkeley and its contributors.
   * 4. Neither the name of the University nor the names of its contributors
   *    may be used to endorse or promote products derived from this software
   *    without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   *
   *	@(#)mfsnode.h	8.2 (Berkeley) 8/11/93
   */
  
  /*
   * This structure defines the control data for the memory based file system.
   */
  
  struct mfsnode {
  	struct	vnode *mfs_vnode;	/* vnode associated with this mfsnode */
  	caddr_t	mfs_baseoff;		/* base of file system in memory */
  	long	mfs_size;		/* size of memory file system */
  	pid_t	mfs_pid;		/* supporting process pid */
  	struct	buf *mfs_buflist;	/* list of I/O requests */
  	long	mfs_spare[4];
  };
  
  /*
   * Convert between mfsnode pointers and vnode pointers
   */
  #define VTOMFS(vp)	((struct mfsnode *)(vp)->v_data)
  #define MFSTOV(mfsp)	((mfsp)->mfs_vnode)
  
  /* Prototypes for MFS operations on vnodes. */
  #define mfs_lookup ((int (*) __P((struct  vop_lookup_args *)))mfs_badop)
  #define mfs_create ((int (*) __P((struct  vop_create_args *)))mfs_badop)
  #define mfs_mknod ((int (*) __P((struct  vop_mknod_args *)))mfs_badop)
  #define mfs_access ((int (*) __P((struct  vop_access_args *)))mfs_badop)
  #define mfs_getattr ((int (*) __P((struct  vop_getattr_args *)))mfs_badop)
  #define mfs_setattr ((int (*) __P((struct  vop_setattr_args *)))mfs_badop)
  #define mfs_read ((int (*) __P((struct  vop_read_args *)))mfs_badop)
  #define mfs_write ((int (*) __P((struct  vop_write_args *)))mfs_badop)
  #define mfs_select ((int (*) __P((struct  vop_select_args *)))mfs_badop)
  #define mfs_mmap ((int (*) __P((struct  vop_mmap_args *)))mfs_badop)
  #define mfs_seek ((int (*) __P((struct  vop_seek_args *)))mfs_badop)
  #define mfs_remove ((int (*) __P((struct  vop_remove_args *)))mfs_badop)
  #define mfs_link ((int (*) __P((struct  vop_link_args *)))mfs_badop)
  #define mfs_rename ((int (*) __P((struct  vop_rename_args *)))mfs_badop)
  #define mfs_mkdir ((int (*) __P((struct  vop_mkdir_args *)))mfs_badop)
  #define mfs_rmdir ((int (*) __P((struct  vop_rmdir_args *)))mfs_badop)
  #define mfs_symlink ((int (*) __P((struct  vop_symlink_args *)))mfs_badop)
  #define mfs_readdir ((int (*) __P((struct  vop_readdir_args *)))mfs_badop)
  #define mfs_readlink ((int (*) __P((struct  vop_readlink_args *)))mfs_badop)
  #define mfs_abortop ((int (*) __P((struct  vop_abortop_args *)))mfs_badop)
  #define mfs_lock ((int (*) __P((struct  vop_lock_args *)))nullop)
  #define mfs_unlock ((int (*) __P((struct  vop_unlock_args *)))nullop)
  #define mfs_islocked ((int (*) __P((struct  vop_islocked_args *)))nullop)
  #define mfs_pathconf ((int (*) __P((struct  vop_pathconf_args *)))mfs_badop)
  #define mfs_advlock ((int (*) __P((struct  vop_advlock_args *)))mfs_badop)
  #define mfs_blkatoff ((int (*) __P((struct  vop_blkatoff_args *)))mfs_badop)
  #define mfs_valloc ((int (*) __P((struct  vop_valloc_args *)))mfs_badop)
  #define mfs_vfree ((int (*) __P((struct  vop_vfree_args *)))mfs_badop)
  #define mfs_truncate ((int (*) __P((struct  vop_truncate_args *)))mfs_badop)
  #define mfs_update ((int (*) __P((struct  vop_update_args *)))mfs_badop)
  #define mfs_bwrite ((int (*) __P((struct  vop_bwrite_args *)))vn_bwrite)
  