197 lines
5.9 KiB
C
197 lines
5.9 KiB
C
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/*
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* Copyright (c) 1989 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)mfsnode.h 7.3 (Berkeley) 4/16/91
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*/
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/*
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* This structure defines the control data for the memory
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* based file system.
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*/
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struct mfsnode {
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struct vnode *mfs_vnode; /* vnode associated with this mfsnode */
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caddr_t mfs_baseoff; /* base of file system in memory */
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long mfs_size; /* size of memory file system */
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pid_t mfs_pid; /* supporting process pid */
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struct buf *mfs_buflist; /* list of I/O requests */
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long mfs_spare[4];
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};
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/*
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* Convert between mfsnode pointers and vnode pointers
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*/
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#define VTOMFS(vp) ((struct mfsnode *)(vp)->v_data)
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#define MFSTOV(mfsp) ((mfsp)->mfs_vnode)
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/*
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* Prototypes for MFS operations on vnodes.
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*/
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int mfs_badop();
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#define mfs_lookup ((int (*) __P(( \
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struct vnode *vp, \
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struct nameidata *ndp, \
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struct proc *p))) mfs_badop)
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#define mfs_create ((int (*) __P(( \
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struct nameidata *ndp, \
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struct vattr *vap, \
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struct proc *p))) mfs_badop)
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#define mfs_mknod ((int (*) __P(( \
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struct nameidata *ndp, \
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struct vattr *vap, \
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struct ucred *cred, \
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struct proc *p))) mfs_badop)
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int mfs_open __P((
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struct vnode *vp,
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int mode,
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struct ucred *cred,
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struct proc *p));
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int mfs_close __P((
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struct vnode *vp,
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int fflag,
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struct ucred *cred,
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struct proc *p));
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#define mfs_access ((int (*) __P(( \
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struct vnode *vp, \
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int mode, \
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struct ucred *cred, \
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struct proc *p))) mfs_badop)
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#define mfs_getattr ((int (*) __P(( \
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struct vnode *vp, \
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struct vattr *vap, \
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struct ucred *cred, \
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struct proc *p))) mfs_badop)
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#define mfs_setattr ((int (*) __P(( \
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struct vnode *vp, \
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struct vattr *vap, \
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struct ucred *cred, \
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struct proc *p))) mfs_badop)
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#define mfs_read ((int (*) __P(( \
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struct vnode *vp, \
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struct uio *uio, \
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int ioflag, \
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struct ucred *cred))) mfs_badop)
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#define mfs_write ((int (*) __P(( \
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struct vnode *vp, \
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struct uio *uio, \
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int ioflag, \
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struct ucred *cred))) mfs_badop)
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int mfs_ioctl __P((
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struct vnode *vp,
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int command,
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caddr_t data,
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int fflag,
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struct ucred *cred,
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struct proc *p));
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#define mfs_select ((int (*) __P(( \
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struct vnode *vp, \
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int which, \
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int fflags, \
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struct ucred *cred, \
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struct proc *p))) mfs_badop)
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#define mfs_mmap ((int (*) __P(( \
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struct vnode *vp, \
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int fflags, \
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struct ucred *cred, \
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struct proc *p))) mfs_badop)
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#define mfs_fsync ((int (*) __P(( \
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struct vnode *vp, \
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int fflags, \
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struct ucred *cred, \
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int waitfor, \
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struct proc *p))) mfs_badop)
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#define mfs_seek ((int (*) __P(( \
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struct vnode *vp, \
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off_t oldoff, \
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off_t newoff, \
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struct ucred *cred))) mfs_badop)
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#define mfs_remove ((int (*) __P(( \
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struct nameidata *ndp, \
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struct proc *p))) mfs_badop)
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#define mfs_link ((int (*) __P(( \
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struct vnode *vp, \
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struct nameidata *ndp, \
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struct proc *p))) mfs_badop)
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#define mfs_rename ((int (*) __P(( \
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struct nameidata *fndp, \
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struct nameidata *tdnp, \
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struct proc *p))) mfs_badop)
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#define mfs_mkdir ((int (*) __P(( \
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struct nameidata *ndp, \
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struct vattr *vap, \
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struct proc *p))) mfs_badop)
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#define mfs_rmdir ((int (*) __P(( \
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struct nameidata *ndp, \
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struct proc *p))) mfs_badop)
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#define mfs_symlink ((int (*) __P(( \
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struct nameidata *ndp, \
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struct vattr *vap, \
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char *target, \
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struct proc *p))) mfs_badop)
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#define mfs_readdir ((int (*) __P(( \
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struct vnode *vp, \
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struct uio *uio, \
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struct ucred *cred, \
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int *eofflagp))) mfs_badop)
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#define mfs_readlink ((int (*) __P(( \
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struct vnode *vp, \
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struct uio *uio, \
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struct ucred *cred))) mfs_badop)
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#define mfs_abortop ((int (*) __P(( \
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struct nameidata *ndp))) mfs_badop)
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int mfs_inactive __P((
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struct vnode *vp,
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struct proc *p));
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#define mfs_reclaim ((int (*) __P(( \
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struct vnode *vp))) nullop)
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#define mfs_lock ((int (*) __P(( \
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struct vnode *vp))) nullop)
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#define mfs_unlock ((int (*) __P(( \
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struct vnode *vp))) nullop)
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int mfs_bmap __P((
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struct vnode *vp,
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daddr_t bn,
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struct vnode **vpp,
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daddr_t *bnp));
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int mfs_strategy __P((
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struct buf *bp));
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int mfs_print __P((
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struct vnode *vp));
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#define mfs_islocked ((int (*) __P(( \
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struct vnode *vp))) nullop)
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#define mfs_advlock ((int (*) __P(( \
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struct vnode *vp, \
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caddr_t id, \
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int op, \
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struct flock *fl, \
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int flags))) mfs_badop)
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