94 lines
4.8 KiB
C
94 lines
4.8 KiB
C
/*
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)mfsnode.h 8.2 (Berkeley) 8/11/93
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* $Id: mfsnode.h,v 1.4 1996/04/08 07:54:51 phk Exp $
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*/
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#ifndef _UFS_MFS_MFSNODE_H_
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#define _UFS_MFS_MFSNODE_H_
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/*
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* This structure defines the control data for the memory based file system.
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*/
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struct mfsnode {
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struct vnode *mfs_vnode; /* vnode associated with this mfsnode */
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caddr_t mfs_baseoff; /* base of file system in memory */
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long mfs_size; /* size of memory file system */
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pid_t mfs_pid; /* supporting process pid */
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struct buf_queue_head buf_queue; /* list of I/O requests */
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int mfs_active;
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long mfs_spare[1];
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};
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/*
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* Convert between mfsnode pointers and vnode pointers
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*/
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#define VTOMFS(vp) ((struct mfsnode *)(vp)->v_data)
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#define MFSTOV(mfsp) ((mfsp)->mfs_vnode)
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/* Prototypes for MFS operations on vnodes. */
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#define mfs_lookup ((int (*) __P((struct vop_lookup_args *)))mfs_badop)
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#define mfs_create ((int (*) __P((struct vop_create_args *)))mfs_badop)
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#define mfs_mknod ((int (*) __P((struct vop_mknod_args *)))mfs_badop)
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#define mfs_access ((int (*) __P((struct vop_access_args *)))mfs_badop)
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#define mfs_getattr ((int (*) __P((struct vop_getattr_args *)))mfs_badop)
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#define mfs_setattr ((int (*) __P((struct vop_setattr_args *)))mfs_badop)
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#define mfs_read ((int (*) __P((struct vop_read_args *)))mfs_badop)
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#define mfs_write ((int (*) __P((struct vop_write_args *)))mfs_badop)
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#define mfs_select ((int (*) __P((struct vop_select_args *)))mfs_badop)
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#define mfs_mmap ((int (*) __P((struct vop_mmap_args *)))mfs_badop)
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#define mfs_seek ((int (*) __P((struct vop_seek_args *)))mfs_badop)
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#define mfs_remove ((int (*) __P((struct vop_remove_args *)))mfs_badop)
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#define mfs_link ((int (*) __P((struct vop_link_args *)))mfs_badop)
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#define mfs_rename ((int (*) __P((struct vop_rename_args *)))mfs_badop)
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#define mfs_mkdir ((int (*) __P((struct vop_mkdir_args *)))mfs_badop)
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#define mfs_rmdir ((int (*) __P((struct vop_rmdir_args *)))mfs_badop)
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#define mfs_symlink ((int (*) __P((struct vop_symlink_args *)))mfs_badop)
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#define mfs_readdir ((int (*) __P((struct vop_readdir_args *)))mfs_badop)
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#define mfs_readlink ((int (*) __P((struct vop_readlink_args *)))mfs_badop)
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#define mfs_abortop ((int (*) __P((struct vop_abortop_args *)))mfs_badop)
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#define mfs_lock ((int (*) __P((struct vop_lock_args *)))nullop)
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#define mfs_unlock ((int (*) __P((struct vop_unlock_args *)))nullop)
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#define mfs_islocked ((int (*) __P((struct vop_islocked_args *)))nullop)
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#define mfs_pathconf ((int (*) __P((struct vop_pathconf_args *)))mfs_badop)
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#define mfs_advlock ((int (*) __P((struct vop_advlock_args *)))mfs_badop)
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#define mfs_blkatoff ((int (*) __P((struct vop_blkatoff_args *)))mfs_badop)
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#define mfs_valloc ((int (*) __P((struct vop_valloc_args *)))mfs_badop)
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#define mfs_vfree ((int (*) __P((struct vop_vfree_args *)))mfs_badop)
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#define mfs_truncate ((int (*) __P((struct vop_truncate_args *)))mfs_badop)
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#define mfs_update ((int (*) __P((struct vop_update_args *)))mfs_badop)
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#define mfs_bwrite ((int (*) __P((struct vop_bwrite_args *)))vn_bwrite)
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#endif
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