freebsd-dev/sys/fs/pseudofs/pseudofs_internal.h

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/*-
* Copyright (c) 2001 Dag-Erling Co<EFBFBD>dan Sm<EFBFBD>rgrav
* 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
* in this position and unchanged.
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* $FreeBSD$
*/
#ifndef _PSEUDOFS_INTERNAL_H_INCLUDED
#define _PSEUDOFS_INTERNAL_H_INCLUDED
/*
* Sysctl subtree
*/
SYSCTL_DECL(_vfs_pfs);
/*
* Vnode data
*/
struct pfs_vdata {
struct pfs_node *pvd_pn;
pid_t pvd_pid;
struct vnode *pvd_vnode;
struct pfs_vdata*pvd_prev, *pvd_next;
};
/*
* Vnode cache
*/
void pfs_vncache_load (void);
void pfs_vncache_unload (void);
int pfs_vncache_alloc (struct mount *, struct vnode **,
struct pfs_node *, pid_t pid);
int pfs_vncache_free (struct vnode *);
/*
* File number bitmap
*/
void pfs_fileno_init (struct pfs_info *);
void pfs_fileno_uninit (struct pfs_info *);
void pfs_fileno_alloc (struct pfs_info *, struct pfs_node *);
void pfs_fileno_free (struct pfs_info *, struct pfs_node *);
#endif