Home | History | Annotate | Line # | Download | only in fsck_lfs
segwrite.h revision 1.3.12.1 
      1 /* $NetBSD: segwrite.h,v 1.3.12.1 2013/06/23 06:28:51 tls 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 (at) 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 
     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 *, ulfs_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 ulfs_getlbns(struct lfs *, struct uvnode *, daddr_t, struct indir *, int *);
     63 int ulfs_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 *, ulfs_daddr_t);
     70