NetBSD/sys/ufs/mfsnode.h

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1993-03-21 12:45:37 +03:00
/*
* 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.
*
* @(#)mfsnode.h 7.3 (Berkeley) 4/16/91
*/
/*
* 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)