ffs_extern.h revision 30492 
1/*-
2 * Copyright (c) 1991, 1993, 1994
3 *	The Regents of the University of California.  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 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by the University of
16 *	California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 *	@(#)ffs_extern.h	8.6 (Berkeley) 3/30/95
34 * $Id: ffs_extern.h,v 1.19 1997/10/16 10:49:22 phk Exp $
35 */
36
37#ifndef _UFS_FFS_EXTERN_H
38#define	_UFS_FFS_EXTERN_H
39
40/*
41 * Sysctl values for the fast filesystem.
42 */
43#define FFS_REALLOCBLKS		3	/* block reallocation enabled */
44#define FFS_ASYNCFREE		4	/* asynchronous block freeing enabled */
45#define	FFS_MAXID		5	/* number of valid ffs ids */
46
47#define FFS_NAMES { \
48	{ 0, 0 }, \
49	{ 0, 0 }, \
50	{ 0, 0 }, \
51	{ "doreallocblks", CTLTYPE_INT }, \
52	{ "doasyncfree", CTLTYPE_INT }, \
53}
54
55struct buf;
56struct fid;
57struct fs;
58struct inode;
59struct mount;
60struct sockaddr;
61struct statfs;
62struct vnode;
63
64int	ffs_alloc __P((struct inode *,
65	    ufs_daddr_t, ufs_daddr_t, int, struct ucred *, ufs_daddr_t *));
66int	ffs_balloc __P((struct inode *,
67	    ufs_daddr_t, int, struct ucred *, struct buf **, int));
68int	ffs_blkatoff __P((struct vnode *, off_t, char **, struct buf **));
69void	ffs_blkfree __P((struct inode *, ufs_daddr_t, long));
70ufs_daddr_t ffs_blkpref __P((struct inode *, ufs_daddr_t, int, ufs_daddr_t *));
71int	ffs_bmap __P((struct vop_bmap_args *));
72void	ffs_clrblock __P((struct fs *, u_char *, ufs_daddr_t));
73int	ffs_fhtovp __P((struct mount *, struct fid *, struct sockaddr *,
74	    struct vnode **, int *, struct ucred **));
75int	ffs_flushfiles __P((struct mount *, int, struct proc *));
76void	ffs_fragacct __P((struct fs *, int, int32_t [], int));
77int	ffs_isblock __P((struct fs *, u_char *, ufs_daddr_t));
78int	ffs_mountfs __P((struct vnode *, struct mount *, struct proc *,
79	     struct malloc_type *));
80int	ffs_mountroot __P((void));
81int	ffs_reallocblks __P((struct vop_reallocblks_args *));
82int	ffs_realloccg __P((struct inode *,
83	    ufs_daddr_t, ufs_daddr_t, int, int, struct ucred *, struct buf **));
84void	ffs_setblock __P((struct fs *, u_char *, ufs_daddr_t));
85int	ffs_statfs __P((struct mount *, struct statfs *, struct proc *));
86int	ffs_sync __P((struct mount *, int, struct ucred *, struct proc *));
87int	ffs_truncate __P((struct vnode *, off_t, int, struct ucred *, struct proc *));
88int	ffs_unmount __P((struct mount *, int, struct proc *));
89int	ffs_update __P((struct vnode *, struct timeval *, struct timeval *, int));
90int	ffs_valloc __P((struct vnode *, int, struct ucred *, struct vnode **));
91
92int	ffs_vfree __P((struct vnode *, ino_t, int));
93int	ffs_vget __P((struct mount *, ino_t, struct vnode **));
94int	ffs_vptofh __P((struct vnode *, struct fid *));
95
96#ifdef DIAGNOSTIC
97int	ffs_checkblk __P((struct inode *, ufs_daddr_t, long));
98void	ffs_checkoverlap __P((struct buf *, struct inode *));
99#endif
100
101extern vop_t **ffs_vnodeop_p;
102extern vop_t **ffs_specop_p;
103extern vop_t **ffs_fifoop_p;
104
105#endif /* !_UFS_FFS_EXTERN_H */
106