/* * Copyright (c) 1989 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. * * from: @(#)mfsnode.h 7.3 (Berkeley) 4/16/91 * $Id: mfsnode.h,v 1.3 1993/05/20 03:53:29 cgd Exp $ */ #ifndef _UFS_MFSNODE_H_ #define _UFS_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 *mfs_buflist; /* list of I/O requests */ long mfs_spare[4]; }; /* * 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. */ int mfs_badop(); #define mfs_lookup ((int (*) __P(( \ struct vnode *vp, \ struct nameidata *ndp, \ struct proc *p))) mfs_badop) #define mfs_create ((int (*) __P(( \ struct nameidata *ndp, \ struct vattr *vap, \ struct proc *p))) mfs_badop) #define mfs_mknod ((int (*) __P(( \ struct nameidata *ndp, \ struct vattr *vap, \ struct ucred *cred, \ struct proc *p))) mfs_badop) int mfs_open __P(( struct vnode *vp, int mode, struct ucred *cred, struct proc *p)); int mfs_close __P(( struct vnode *vp, int fflag, struct ucred *cred, struct proc *p)); #define mfs_access ((int (*) __P(( \ struct vnode *vp, \ int mode, \ struct ucred *cred, \ struct proc *p))) mfs_badop) #define mfs_getattr ((int (*) __P(( \ struct vnode *vp, \ struct vattr *vap, \ struct ucred *cred, \ struct proc *p))) mfs_badop) #define mfs_setattr ((int (*) __P(( \ struct vnode *vp, \ struct vattr *vap, \ struct ucred *cred, \ struct proc *p))) mfs_badop) #define mfs_read ((int (*) __P(( \ struct vnode *vp, \ struct uio *uio, \ int ioflag, \ struct ucred *cred))) mfs_badop) #define mfs_write ((int (*) __P(( \ struct vnode *vp, \ struct uio *uio, \ int ioflag, \ struct ucred *cred))) mfs_badop) int mfs_ioctl __P(( struct vnode *vp, int command, caddr_t data, int fflag, struct ucred *cred, struct proc *p)); #define mfs_select ((int (*) __P(( \ struct vnode *vp, \ int which, \ int fflags, \ struct ucred *cred, \ struct proc *p))) mfs_badop) #define mfs_mmap ((int (*) __P(( \ struct vnode *vp, \ int fflags, \ struct ucred *cred, \ struct proc *p))) mfs_badop) #define mfs_fsync ((int (*) __P(( \ struct vnode *vp, \ int fflags, \ struct ucred *cred, \ int waitfor, \ struct proc *p))) mfs_badop) #define mfs_seek ((int (*) __P(( \ struct vnode *vp, \ off_t oldoff, \ off_t newoff, \ struct ucred *cred))) mfs_badop) #define mfs_remove ((int (*) __P(( \ struct nameidata *ndp, \ struct proc *p))) mfs_badop) #define mfs_link ((int (*) __P(( \ struct vnode *vp, \ struct nameidata *ndp, \ struct proc *p))) mfs_badop) #define mfs_rename ((int (*) __P(( \ struct nameidata *fndp, \ struct nameidata *tdnp, \ struct proc *p))) mfs_badop) #define mfs_mkdir ((int (*) __P(( \ struct nameidata *ndp, \ struct vattr *vap, \ struct proc *p))) mfs_badop) #define mfs_rmdir ((int (*) __P(( \ struct nameidata *ndp, \ struct proc *p))) mfs_badop) #define mfs_symlink ((int (*) __P(( \ struct nameidata *ndp, \ struct vattr *vap, \ char *target, \ struct proc *p))) mfs_badop) #define mfs_readdir ((int (*) __P(( \ struct vnode *vp, \ struct uio *uio, \ struct ucred *cred, \ int *eofflagp))) mfs_badop) #define mfs_readlink ((int (*) __P(( \ struct vnode *vp, \ struct uio *uio, \ struct ucred *cred))) mfs_badop) #define mfs_abortop ((int (*) __P(( \ struct nameidata *ndp))) mfs_badop) int mfs_inactive __P(( struct vnode *vp, struct proc *p)); #define mfs_reclaim ((int (*) __P(( \ struct vnode *vp))) nullop) #define mfs_lock ((int (*) __P(( \ struct vnode *vp))) nullop) #define mfs_unlock ((int (*) __P(( \ struct vnode *vp))) nullop) int mfs_bmap __P(( struct vnode *vp, daddr_t bn, struct vnode **vpp, daddr_t *bnp)); int mfs_strategy __P(( struct buf *bp)); int mfs_print __P(( struct vnode *vp)); #define mfs_islocked ((int (*) __P(( \ struct vnode *vp))) nullop) #define mfs_advlock ((int (*) __P(( \ struct vnode *vp, \ caddr_t id, \ int op, \ struct flock *fl, \ int flags))) mfs_badop) #endif /* !_UFS_MFSNODE_H_ */