1 /* $NetBSD: mfsnode.h,v 1.2 1994/06/29 06:47:16 cgd Exp $ */ 2 3 /* 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)mfsnode.h 8.2 (Berkeley) 8/11/93 36 */ 37 38 /* 39 * This structure defines the control data for the memory based file system. 40 */ 41 42 struct mfsnode { 43 struct vnode *mfs_vnode; /* vnode associated with this mfsnode */ 44 caddr_t mfs_baseoff; /* base of file system in memory */ 45 long mfs_size; /* size of memory file system */ 46 pid_t mfs_pid; /* supporting process pid */ 47 struct buf *mfs_buflist; /* list of I/O requests */ 48 long mfs_spare[4]; 49 }; 50 51 /* 52 * Convert between mfsnode pointers and vnode pointers 53 */ 54 #define VTOMFS(vp) ((struct mfsnode *)(vp)->v_data) 55 #define MFSTOV(mfsp) ((mfsp)->mfs_vnode) 56 57 /* Prototypes for MFS operations on vnodes. */ 58 #define mfs_lookup ((int (*) __P((struct vop_lookup_args *)))mfs_badop) 59 #define mfs_create ((int (*) __P((struct vop_create_args *)))mfs_badop) 60 #define mfs_mknod ((int (*) __P((struct vop_mknod_args *)))mfs_badop) 61 #define mfs_access ((int (*) __P((struct vop_access_args *)))mfs_badop) 62 #define mfs_getattr ((int (*) __P((struct vop_getattr_args *)))mfs_badop) 63 #define mfs_setattr ((int (*) __P((struct vop_setattr_args *)))mfs_badop) 64 #define mfs_read ((int (*) __P((struct vop_read_args *)))mfs_badop) 65 #define mfs_write ((int (*) __P((struct vop_write_args *)))mfs_badop) 66 #define mfs_select ((int (*) __P((struct vop_select_args *)))mfs_badop) 67 #define mfs_mmap ((int (*) __P((struct vop_mmap_args *)))mfs_badop) 68 #define mfs_seek ((int (*) __P((struct vop_seek_args *)))mfs_badop) 69 #define mfs_remove ((int (*) __P((struct vop_remove_args *)))mfs_badop) 70 #define mfs_link ((int (*) __P((struct vop_link_args *)))mfs_badop) 71 #define mfs_rename ((int (*) __P((struct vop_rename_args *)))mfs_badop) 72 #define mfs_mkdir ((int (*) __P((struct vop_mkdir_args *)))mfs_badop) 73 #define mfs_rmdir ((int (*) __P((struct vop_rmdir_args *)))mfs_badop) 74 #define mfs_symlink ((int (*) __P((struct vop_symlink_args *)))mfs_badop) 75 #define mfs_readdir ((int (*) __P((struct vop_readdir_args *)))mfs_badop) 76 #define mfs_readlink ((int (*) __P((struct vop_readlink_args *)))mfs_badop) 77 #define mfs_abortop ((int (*) __P((struct vop_abortop_args *)))mfs_badop) 78 #define mfs_lock ((int (*) __P((struct vop_lock_args *)))nullop) 79 #define mfs_unlock ((int (*) __P((struct vop_unlock_args *)))nullop) 80 #define mfs_islocked ((int (*) __P((struct vop_islocked_args *)))nullop) 81 #define mfs_pathconf ((int (*) __P((struct vop_pathconf_args *)))mfs_badop) 82 #define mfs_advlock ((int (*) __P((struct vop_advlock_args *)))mfs_badop) 83 #define mfs_blkatoff ((int (*) __P((struct vop_blkatoff_args *)))mfs_badop) 84 #define mfs_valloc ((int (*) __P((struct vop_valloc_args *)))mfs_badop) 85 #define mfs_vfree ((int (*) __P((struct vop_vfree_args *)))mfs_badop) 86 #define mfs_truncate ((int (*) __P((struct vop_truncate_args *)))mfs_badop) 87 #define mfs_update ((int (*) __P((struct vop_update_args *)))mfs_badop) 88 #define mfs_bwrite ((int (*) __P((struct vop_bwrite_args *)))vn_bwrite) 89