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segwrite.h revision 1.1
      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 (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  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *	This product includes software developed by the NetBSD
     20  *	Foundation, Inc. and its contributors.
     21  * 4. Neither the name of The NetBSD Foundation nor the names of its
     22  *    contributors may be used to endorse or promote products derived
     23  *    from this software without specific prior written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     26  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     35  * POSSIBILITY OF SUCH DAMAGE.
     36  */
     37 /*
     38  * Determine if it's OK to start a partial in this segment, or if we need
     39  * to go on to a new segment.
     40  */
     41 #define	LFS_PARTIAL_FITS(fs) \
     42 	((fs)->lfs_fsbpseg - ((fs)->lfs_offset - (fs)->lfs_curseg) > \
     43 	fragstofsb((fs), (fs)->lfs_frag))
     44 
     45 /* op values to lfs_writevnodes */
     46 #define	VN_REG		0
     47 #define	VN_DIROP	1
     48 
     49 int lfs_segwrite(struct lfs *, int);
     50 void lfs_writefile(struct lfs *, struct segment *, struct uvnode *);
     51 int lfs_writeinode(struct lfs *, struct segment *, struct inode *);
     52 int lfs_gatherblock(struct segment *, struct ubuf *);
     53 int lfs_gather(struct lfs *, struct segment *, struct uvnode *,
     54 	   int (*match) (struct lfs *, struct ubuf *));
     55 void lfs_update_single(struct lfs *, struct segment *, daddr_t, int32_t, int);
     56 void lfs_updatemeta(struct segment *);
     57 int lfs_initseg(struct lfs *);
     58 void lfs_newseg(struct lfs *);
     59 int lfs_writeseg(struct lfs *, struct segment *);
     60 void lfs_writesuper(struct lfs *, ufs_daddr_t);
     61 
     62 int lfs_match_data(struct lfs *, struct ubuf *);
     63 int lfs_match_indir(struct lfs *, struct ubuf *);
     64 int lfs_match_dindir(struct lfs *, struct ubuf *);
     65 int lfs_match_tindir(struct lfs *, struct ubuf *);
     66 
     67 void lfs_shellsort(struct ubuf **, int32_t *, int, int);
     68 
     69 int ufs_getlbns(struct lfs *, struct uvnode *, daddr_t, struct indir *, int *);
     70 int ufs_bmaparray(struct lfs *, struct uvnode *, daddr_t, daddr_t *, struct indir *, int *);
     71 
     72 int lfs_seglock(struct lfs *, unsigned long);
     73 void lfs_segunlock(struct lfs *);
     74 int lfs_writevnodes(struct lfs *, struct segment *, int);
     75 
     76 void lfs_writesuper(struct lfs *, ufs_daddr_t);
     77