text: /*	$OpenBSD: mfsnode.h,v 1.7 1998/08/06 19:35:11 csapuntz Exp $	*/
  /*	$NetBSD: mfsnode.h,v 1.3 1996/02/09 22:31:31 christos Exp $	*/
  
  /*
   * 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	mfs_badop
  #define	mfs_create	mfs_badop
  #define	mfs_mknod	mfs_badop
  #define	mfs_access	mfs_badop
  #define	mfs_getattr	mfs_badop
  #define	mfs_setattr	mfs_badop
  #define	mfs_read	mfs_badop
  #define	mfs_write	mfs_badop
  #define	mfs_select	mfs_badop
  #define	mfs_mmap	mfs_badop
  #define	mfs_seek	mfs_badop
  #define	mfs_remove	mfs_badop
  #define	mfs_link	mfs_badop
  #define	mfs_rename	mfs_badop
  #define	mfs_mkdir	mfs_badop
  #define	mfs_rmdir	mfs_badop
  #define	mfs_symlink	mfs_badop
  #define	mfs_readdir	mfs_badop
  #define	mfs_readlink	mfs_badop
  #define	mfs_abortop	mfs_badop
  #define	mfs_lock	vop_generic_lock
  #define	mfs_unlock	vop_generic_unlock
  #define	mfs_islocked	vop_generic_islocked
  #define	mfs_pathconf	mfs_badop
  #define	mfs_advlock	mfs_badop
  #define	mfs_blkatoff	mfs_badop
  #define	mfs_valloc	mfs_badop
  #define	mfs_vfree	mfs_badop
  #define	mfs_truncate	mfs_badop
  #define	mfs_update	nullop
  #define	mfs_bwrite	vop_generic_bwrite
  