79cc756d8b
Reverse the VFS_VRELE patch. Reference counting of vnodes does not need to be done per-fs. I noticed this while fixing vfs layering violations. Doing reference counting in generic code is also the preference cited by John Heidemann in recent discussions with him. The implementation of alternative vnode management per-fs is still a valid requirement for some filesystems but will be revisited sometime later, most likely using a different framework. Submitted by: Michael Hancock <michaelh@cet.co.jp>
68 lines
3.0 KiB
C
68 lines
3.0 KiB
C
/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software donated to Berkeley by
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* Jan-Simon Pendry.
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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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* @(#)kernfs.h 8.6 (Berkeley) 3/29/95
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* $Id: kernfs.h,v 1.9 1998/03/01 22:46:12 msmith Exp $
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*/
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#define _PATH_KERNFS "/kern" /* Default mountpoint */
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#ifdef KERNEL
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struct kernfs_mount {
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struct vnode *kf_root; /* Root node */
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};
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struct kernfs_node {
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struct kern_target *kf_kt;
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};
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#define VFSTOKERNFS(mp) ((struct kernfs_mount *)((mp)->mnt_data))
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#define VTOKERN(vp) ((struct kernfs_node *)(vp)->v_data)
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#define kernfs_fhtovp ((int (*) __P((struct mount *, struct fid *, \
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struct sockaddr *, struct vnode **, int *, struct ucred **)))eopnotsupp)
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#define kernfs_quotactl ((int (*) __P((struct mount *, int, uid_t, caddr_t, \
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struct proc *)))eopnotsupp)
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#define kernfs_sync ((int (*) __P((struct mount *, int, struct ucred *, \
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struct proc *)))nullop)
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#define kernfs_sysctl ((int (*) __P((int *, u_int, void *, size_t *, void *, \
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size_t, struct proc *)))eopnotsupp)
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#define kernfs_vget ((int (*) __P((struct mount *, ino_t, struct vnode **))) \
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eopnotsupp)
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#define kernfs_vptofh ((int (*) __P((struct vnode *, struct fid *)))eopnotsupp)
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extern vop_t **kernfs_vnodeop_p;
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extern dev_t rrootdev;
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#endif /* KERNEL */
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