1 /*-
2 * Copyright (c) 2001 Dag-Erling Coïdan Smørgrav
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer
10 * in this position and unchanged.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $FreeBSD: releng/6.4/sys/fs/pseudofs/pseudofs_internal.h 170191 2007-06-01 20:56:18Z des $
29 */
30
31 #ifndef _PSEUDOFS_INTERNAL_H_INCLUDED
32 #define _PSEUDOFS_INTERNAL_H_INCLUDED
33
34 /*
35 * Sysctl subtree
36 */
37 SYSCTL_DECL(_vfs_pfs);
38
39 /*
40 * Vnode data
41 */
42 struct pfs_vdata {
43 struct pfs_node *pvd_pn;
44 pid_t pvd_pid;
45 struct vnode *pvd_vnode;
46 struct pfs_vdata*pvd_prev, *pvd_next;
47 int pvd_dead:1;
48 };
49
50 /*
51 * Vnode cache
52 */
53 void pfs_vncache_load (void);
54 void pfs_vncache_unload (void);
55 int pfs_vncache_alloc (struct mount *, struct vnode **,
56 struct pfs_node *, pid_t pid);
57 int pfs_vncache_free (struct vnode *);
58
59 /*
60 * File number bitmap
61 */
62 void pfs_fileno_init (struct pfs_info *);
63 void pfs_fileno_uninit (struct pfs_info *);
64 void pfs_fileno_alloc (struct pfs_node *);
65 void pfs_fileno_free (struct pfs_node *);
66
67 #endif
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