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/* $OpenBSD: mfsnode.h,v 1.3 1996/06/11 03:25:15 tholo 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 nullop
#define mfs_unlock nullop
#define mfs_islocked nullop
#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 vn_bwrite
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