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/*
* 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
* $Id: mfsnode.h,v 1.4 1996/04/08 07:54:51 phk Exp $
*/
#ifndef _UFS_MFS_MFSNODE_H_
#define _UFS_MFS_MFSNODE_H_
/*
* 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_queue_head buf_queue; /* list of I/O requests */
int mfs_active;
long mfs_spare[1];
};
/*
* 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)
#endif
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