NetBSD/sbin/newfs_lfs/config.h

86 lines
3.2 KiB
C

/* $NetBSD: config.h,v 1.6 2001/07/13 20:30:19 perseant Exp $ */
/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)config.h 8.3 (Berkeley) 5/24/95
*/
/*
* Version of the LFS to make. Default to the newest one.
*/
#define DFL_VERSION LFS_VERSION
/*
* The following two constants set the default block and fragment sizes.
* Both constants must be a power of 2 and meet the following constraints:
* MINBSIZE <= DESBLKSIZE <= MAXBSIZE
* sectorsize <= DESFRAGSIZE <= DESBLKSIZE
* DESBLKSIZE / DESFRAGSIZE <= 8
*/
#define DFL_FRAGSIZE 512
#define DFL_BLKSIZE 8192
/*
* 1/DFL_MIN_FREE_SEGS gives the fraction of segments to be reserved for
* the cleaner.
*/
#define DFL_MIN_FREE_SEGS 20
/*
* MINFREE gives the minimum acceptable percentage of file system
* blocks which may be free. If the freelist drops below this level
* only the superuser may continue to allocate blocks.
*/
#define MINFREE 10
/*
* The following constants set the default block and segment size for a log
* structured file system. The block size must be a power of two and less
* than the segment size.
*/
#define LFS_MINSEGSIZE (64 * 1024)
#define DFL_LFSSEG (1024 * 1024)
#define DFL_LFSSEG_SHIFT 20
#define DFL_LFSSEG_MASK 0xFFFFF
#define LFS_MINBLOCKSIZE 512
#define DFL_LFSBLOCK 8192
#define DFL_LFSBLOCK_SHIFT 13
#define DFL_LFSBLOCK_MASK 0x1FFF
#define DFL_LFSFRAG 1024
#define DFL_LFS_FFMASK 0x3FF
#define DFL_LFS_FFSHIFT 10
#define DFL_LFS_FBMASK 0x7
#define DFL_LFS_FBSHIFT 3