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- /* $OpenBSD: mfsnode.h,v 1.14 2013/01/15 11:20:55 jsing 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. 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 */
- struct bufq mfs_bufq; /* bufq for MFS I/O */
- 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 */
- int mfs_shutdown; /* shutdown request */
- };
- /*
- * Convert between mfsnode pointers and vnode pointers
- */
- #define VTOMFS(vp) ((struct mfsnode *)(vp)->v_data)
- #define MFSTOV(mfsp) ((mfsp)->mfs_vnode)
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