1 /* $NetBSD: config.h,v 1.8 2003/12/17 05:08:43 yamt Exp $ */ 2 3 /*- 4 * Copyright (c) 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)config.h 8.3 (Berkeley) 5/24/95 32 */ 33 34 /* 35 * Version of the LFS to make. Default to the newest one. 36 */ 37 #define DFL_VERSION LFS_VERSION 38 39 /* 40 * 1/DFL_MIN_FREE_SEGS gives the fraction of segments to be reserved for 41 * the cleaner. 42 */ 43 #define DFL_MIN_FREE_SEGS 20 44 45 /* 46 * MINFREE gives the minimum acceptable percentage of file system 47 * blocks which may be free. If the freelist drops below this level 48 * only the superuser may continue to allocate blocks. 49 */ 50 #define MINFREE 10 51 52 /* 53 * The following constants set the default block and segment size for a log 54 * structured file system. The block size must be a power of two and less 55 * than the segment size. 56 */ 57 #define LFS_MINSEGSIZE (64 * 1024) 58 #define DFL_LFSSEG (1024 * 1024) 59 #define DFL_LFSSEG_SHIFT 20 60 #define DFL_LFSSEG_MASK 0xFFFFF 61 62 #define LFS_MINBLOCKSIZE 512 63 #define DFL_LFSBLOCK 8192 64 #define DFL_LFSBLOCK_SHIFT 13 65 #define DFL_LFSBLOCK_MASK 0x1FFF 66 67 #define DFL_LFSFRAG 1024 68 #define DFL_LFS_FFMASK 0x3FF 69 #define DFL_LFS_FFSHIFT 10 70 #define DFL_LFS_FBMASK 0x7 71 #define DFL_LFS_FBSHIFT 3 72