1/*	$OpenBSD: ffs_extern.h,v 1.6 2016/10/22 17:15:28 natano Exp $	*/
2/*	$NetBSD: ffs_extern.h,v 1.6 2003/08/07 11:25:33 agc Exp $	*/
3/* From: NetBSD: ffs_extern.h,v 1.19 2001/08/17 02:18:48 lukem Exp */
4
5/*-
6 * Copyright (c) 1991, 1993, 1994
7 *	The Regents of the University of California.  All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. 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 */
35
36#include "ffs/buf.h"
37
38/*
39 * Structure used to pass around logical block paths generated by
40 * ufs_getlbns and used by truncate and bmap code.
41 */
42struct indir {
43	daddr_t in_lbn;		/* Logical block number. */
44	int	in_off;			/* Offset in buffer. */
45	int	in_exists;		/* Flag if the block exists. */
46};
47
48	/* ffs_alloc.c */
49struct inode;
50int ffs_alloc(struct inode *, daddr_t, daddr_t, int, daddr_t *);
51daddr_t ffs_blkpref_ufs1(struct inode *, daddr_t, int, int32_t *);
52daddr_t ffs_blkpref_ufs2(struct inode *, daddr_t, int, int64_t *);
53void ffs_clusteracct(struct fs *, struct cg *, int32_t, int);
54
55	/* ffs_balloc.c */
56int ffs_balloc(struct inode *, off_t, int, struct mkfsbuf **);
57
58	/* ffs_subr.c */
59int ffs_isblock(struct fs *, u_char *, int32_t);
60void ffs_clrblock(struct fs *, u_char *, int32_t);
61void ffs_setblock(struct fs *, u_char *, int32_t);
62
63	/* ufs_bmap.c */
64int ufs_getlbns(struct inode *, daddr_t, struct indir *, int *);
65