1/* $NetBSD: segwrite.h,v 1.2 2008/04/28 20:23:08 martin Exp $ */
2/*-
3 * Copyright (c) 2003 The NetBSD Foundation, Inc.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to The NetBSD Foundation
7 * by Konrad E. Schroder <perseant@hhhh.org>.
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 *
18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30/*
31 * Determine if it's OK to start a partial in this segment, or if we need
32 * to go on to a new segment.
33 */
34#define	LFS_PARTIAL_FITS(fs) \
35	((fs)->lfs_fsbpseg - ((fs)->lfs_offset - (fs)->lfs_curseg) > \
36	(fs)->lfs_frag)
37
38/* op values to lfs_writevnodes */
39#define	VN_REG		0
40#define	VN_DIROP	1
41
42int lfs_segwrite(struct lfs *, int);
43void lfs_writefile(struct lfs *, struct segment *, struct uvnode *);
44int lfs_writeinode(struct lfs *, struct segment *, struct inode *);
45int lfs_gatherblock(struct segment *, struct ubuf *);
46int lfs_gather(struct lfs *, struct segment *, struct uvnode *,
47	   int (*match) (struct lfs *, struct ubuf *));
48void lfs_update_single(struct lfs *, struct segment *, daddr_t, int32_t, int);
49void lfs_updatemeta(struct segment *);
50int lfs_initseg(struct lfs *);
51void lfs_newseg(struct lfs *);
52int lfs_writeseg(struct lfs *, struct segment *);
53void lfs_writesuper(struct lfs *, ufs_daddr_t);
54
55int lfs_match_data(struct lfs *, struct ubuf *);
56int lfs_match_indir(struct lfs *, struct ubuf *);
57int lfs_match_dindir(struct lfs *, struct ubuf *);
58int lfs_match_tindir(struct lfs *, struct ubuf *);
59
60void lfs_shellsort(struct ubuf **, int32_t *, int, int);
61
62int ufs_getlbns(struct lfs *, struct uvnode *, daddr_t, struct indir *, int *);
63int ufs_bmaparray(struct lfs *, struct uvnode *, daddr_t, daddr_t *, struct indir *, int *);
64
65int lfs_seglock(struct lfs *, unsigned long);
66void lfs_segunlock(struct lfs *);
67int lfs_writevnodes(struct lfs *, struct segment *, int);
68
69void lfs_writesuper(struct lfs *, ufs_daddr_t);
70