1/*	$NetBSD: buf.h,v 1.3 2001/11/02 03:12:49 lukem Exp $	*/
2
3/*-
4 * SPDX-License-Identifier: BSD-4-Clause
5 *
6 * Copyright (c) 2001 Wasabi Systems, Inc.
7 * All rights reserved.
8 *
9 * Written by Luke Mewburn for Wasabi Systems, Inc.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 *    must display the following acknowledgement:
21 *      This product includes software developed for the NetBSD Project by
22 *      Wasabi Systems, Inc.
23 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
24 *    or promote products derived from this software without specific prior
25 *    written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 *
39 * $FreeBSD$
40 */
41
42#ifndef _FFS_BUF_H
43#define	_FFS_BUF_H
44
45#include <sys/param.h>
46#include <sys/queue.h>
47
48struct componentname;
49struct makefs_fsinfo;
50struct ucred;
51
52struct vnode {
53	struct makefs_fsinfo *fs;
54	void *v_data;
55};
56
57struct buf {
58	char *		b_data;
59	long		b_bufsize;
60	long		b_bcount;
61	daddr_t		b_blkno;
62	daddr_t		b_lblkno;
63	struct makefs_fsinfo *b_fs;
64
65	TAILQ_ENTRY(buf)	b_tailq;
66};
67
68void		bcleanup(void);
69int		bread(struct vnode *, daddr_t, int, struct ucred *,
70    struct buf **);
71void		brelse(struct buf *);
72int		bwrite(struct buf *);
73struct buf *	getblk(struct vnode *, daddr_t, int, int, int, int);
74
75#define	bdwrite(bp)	bwrite(bp)
76#define	clrbuf(bp)	memset((bp)->b_data, 0, (u_int)(bp)->b_bcount)
77
78#endif	/* _FFS_BUF_H */
79