1 /* $OpenBSD: mfsnode.h,v 1.3 1996/06/11 03:25:15 tholo Exp $ */ 2 /* $NetBSD: mfsnode.h,v 1.3 1996/02/09 22:31:31 christos Exp $ */ 3 4 /* 5 * Copyright (c) 1989, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)mfsnode.h 8.2 (Berkeley) 8/11/93 37 */ 38 39 /* 40 * This structure defines the control data for the memory based file system. 41 */ 42 43 struct mfsnode { 44 struct vnode *mfs_vnode; /* vnode associated with this mfsnode */ 45 caddr_t mfs_baseoff; /* base of file system in memory */ 46 long mfs_size; /* size of memory file system */ 47 pid_t mfs_pid; /* supporting process pid */ 48 struct buf *mfs_buflist; /* list of I/O requests */ 49 long mfs_spare[4]; 50 }; 51 52 /* 53 * Convert between mfsnode pointers and vnode pointers 54 */ 55 #define VTOMFS(vp) ((struct mfsnode *)(vp)->v_data) 56 #define MFSTOV(mfsp) ((mfsp)->mfs_vnode) 57 58 /* Prototypes for MFS operations on vnodes. */ 59 #define mfs_lookup mfs_badop 60 #define mfs_create mfs_badop 61 #define mfs_mknod mfs_badop 62 #define mfs_access mfs_badop 63 #define mfs_getattr mfs_badop 64 #define mfs_setattr mfs_badop 65 #define mfs_read mfs_badop 66 #define mfs_write mfs_badop 67 #define mfs_select mfs_badop 68 #define mfs_mmap mfs_badop 69 #define mfs_seek mfs_badop 70 #define mfs_remove mfs_badop 71 #define mfs_link mfs_badop 72 #define mfs_rename mfs_badop 73 #define mfs_mkdir mfs_badop 74 #define mfs_rmdir mfs_badop 75 #define mfs_symlink mfs_badop 76 #define mfs_readdir mfs_badop 77 #define mfs_readlink mfs_badop 78 #define mfs_abortop mfs_badop 79 #define mfs_lock nullop 80 #define mfs_unlock nullop 81 #define mfs_islocked nullop 82 #define mfs_pathconf mfs_badop 83 #define mfs_advlock mfs_badop 84 #define mfs_blkatoff mfs_badop 85 #define mfs_valloc mfs_badop 86 #define mfs_vfree mfs_badop 87 #define mfs_truncate mfs_badop 88 #define mfs_update nullop 89 #define mfs_bwrite vn_bwrite 90