mfsnode.h revision 1.14
1 /* $NetBSD: mfsnode.h,v 1.14 2003/08/07 16:34:41 agc 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)mfsnode.h 8.3 (Berkeley) 5/19/95 32 */ 33 34 #ifndef _UFS_MFS_MFSNODE_H_ 35 #define _UFS_MFS_MFSNODE_H_ 36 37 /* 38 * This structure defines the control data for the memory based file system. 39 */ 40 41 struct mfsnode { 42 struct vnode *mfs_vnode; /* vnode associated with this mfsnode */ 43 caddr_t mfs_baseoff; /* base of file system in memory */ 44 long mfs_size; /* size of memory file system */ 45 struct proc *mfs_proc; /* supporting process */ 46 struct bufq_state mfs_buflist; /* list of I/O requests */ 47 int mfs_shutdown; /* shutdown this mfsnode */ 48 }; 49 50 /* 51 * Convert between mfsnode pointers and vnode pointers 52 */ 53 #define VTOMFS(vp) ((struct mfsnode *)(vp)->v_data) 54 #define MFSTOV(mfsp) ((mfsp)->mfs_vnode) 55 56 /* Prototypes for MFS operations on vnodes. */ 57 #define mfs_lookup genfs_badop 58 #define mfs_create genfs_badop 59 #define mfs_mknod genfs_badop 60 #define mfs_access genfs_badop 61 #define mfs_getattr genfs_badop 62 #define mfs_setattr genfs_badop 63 #define mfs_read genfs_badop 64 #define mfs_write genfs_badop 65 #define mfs_poll genfs_badop 66 #define mfs_mmap genfs_badop 67 #define mfs_seek genfs_badop 68 #define mfs_remove genfs_badop 69 #define mfs_link genfs_badop 70 #define mfs_rename genfs_badop 71 #define mfs_mkdir genfs_badop 72 #define mfs_rmdir genfs_badop 73 #define mfs_symlink genfs_badop 74 #define mfs_readdir genfs_badop 75 #define mfs_readlink genfs_badop 76 #define mfs_abortop genfs_badop 77 #define mfs_lock genfs_nolock 78 #define mfs_unlock genfs_nounlock 79 #define mfs_islocked genfs_noislocked 80 #define mfs_pathconf genfs_badop 81 #define mfs_advlock genfs_badop 82 #define mfs_blkatoff genfs_badop 83 #define mfs_valloc genfs_badop 84 #define mfs_vfree genfs_badop 85 #define mfs_truncate genfs_badop 86 #define mfs_update genfs_badop 87 #define mfs_bwrite vn_bwrite 88 #define mfs_revoke genfs_revoke 89 #define mfs_putpages genfs_null_putpages 90 91 #endif /* !_UFS_MFS_MFSNODE_H_ */ 92
Indexes created Thu Sep 25 16:09:42 GMT 2025