sbin/fsck_lfs/segwrite.h

   1 /* $NetBSD: segwrite.h,v 1.1 2003/03/28 08:09:54 perseant 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         fragstofsb((fs), (fs)->lfs_frag))
  37
  38 /* op values to lfs_writevnodes */
  39 #define VN_REG          0
  40 #define VN_DIROP        1
  41
  42 int lfs_segwrite(struct lfs *, int);
  43 void lfs_writefile(struct lfs *, struct segment *, struct uvnode *);
  44 int lfs_writeinode(struct lfs *, struct segment *, struct inode *);
  45 int lfs_gatherblock(struct segment *, struct ubuf *);
  46 int lfs_gather(struct lfs *, struct segment *, struct uvnode *,
  47            int (*match) (struct lfs *, struct ubuf *));
  48 void lfs_update_single(struct lfs *, struct segment *, daddr_t, int32_t, int);
  49 void lfs_updatemeta(struct segment *);
  50 int lfs_initseg(struct lfs *);
  51 void lfs_newseg(struct lfs *);
  52 int lfs_writeseg(struct lfs *, struct segment *);
  53 void lfs_writesuper(struct lfs *, ufs_daddr_t);
  54
  55 int lfs_match_data(struct lfs *, struct ubuf *);
  56 int lfs_match_indir(struct lfs *, struct ubuf *);
  57 int lfs_match_dindir(struct lfs *, struct ubuf *);
  58 int lfs_match_tindir(struct lfs *, struct ubuf *);
  59
  60 void lfs_shellsort(struct ubuf **, int32_t *, int, int);
  61
  62 int ufs_getlbns(struct lfs *, struct uvnode *, daddr_t, struct indir *, int *);
  63 int ufs_bmaparray(struct lfs *, struct uvnode *, daddr_t, daddr_t *, struct indir *, int *);
  64
  65 int lfs_seglock(struct lfs *, unsigned long);
  66 void lfs_segunlock(struct lfs *);
  67 int lfs_writevnodes(struct lfs *, struct segment *, int);
  68
  69 void lfs_writesuper(struct lfs *, ufs_daddr_t);