ffs_extern.h revision 1.1 
1/*	$NetBSD: ffs_extern.h,v 1.1 2001/10/26 06:21:48 lukem Exp $	*/
2/* From: NetBSD: ffs_extern.h,v 1.19 2001/08/17 02:18:48 lukem Exp */
3
4/*-
5 * Copyright (c) 1991, 1993, 1994
6 *	The Regents of the University of California.  All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 *    must display the following acknowledgement:
18 *	This product includes software developed by the University of
19 *	California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 *	@(#)ffs_extern.h	8.6 (Berkeley) 3/30/95
37 */
38
39#include "ffs/buf.h"
40
41#define i_fd	i_modrev		/* XXX: stuff this somewhere */
42
43/*
44 * Structure used to pass around logical block paths generated by
45 * ufs_getlbns and used by truncate and bmap code.
46 */
47struct indir {
48	ufs_daddr_t in_lbn;		/* Logical block number. */
49	int	in_off;			/* Offset in buffer. */
50	int	in_exists;		/* Flag if the block exists. */
51};
52
53	/* ffs.c */
54void panic(const char *, ...)
55    __attribute__((__noreturn__,__format__(__printf__,1,2)));
56
57	/* ffs_alloc.c */
58int ffs_alloc(struct inode *, ufs_daddr_t, ufs_daddr_t, int, ufs_daddr_t *);
59ufs_daddr_t ffs_blkpref(struct inode *, ufs_daddr_t, int, ufs_daddr_t *);
60void ffs_blkfree(struct inode *, ufs_daddr_t, long);
61void ffs_clusteracct(struct fs *, struct cg *, ufs_daddr_t, int);
62
63	/* ffs_balloc.c */
64int ffs_balloc(struct inode *, off_t, int, struct buf **);
65
66	/* ffs_bswap.c */
67void ffs_sb_swap(struct fs*, struct fs *);
68void ffs_dinode_swap(struct dinode *, struct dinode *);
69void ffs_csum_swap(struct csum *, struct csum *, int);
70
71	/* ffs_subr.c */
72void ffs_fragacct(struct fs *, int, int32_t[], int, int);
73int ffs_isblock(struct fs *, u_char *, ufs_daddr_t);
74int ffs_isfreeblock(struct fs *, u_char *, ufs_daddr_t);
75void ffs_clrblock(struct fs *, u_char *, ufs_daddr_t);
76void ffs_setblock(struct fs *, u_char *, ufs_daddr_t);
77
78	/* ufs_bmap.c */
79int ufs_getlbns(struct inode *, ufs_daddr_t, struct indir *, int *);
80