1 /* $NetBSD: ffs.h,v 1.1 2004/12/20 20:51:42 jmc Exp $ */ 2 3 /* 4 * Copyright (c) 2001-2003 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Luke Mewburn for Wasabi Systems, Inc. 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 for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * 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 WASABI SYSTEMS, INC 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 * $FreeBSD$ 38 */ 39 40 #ifndef _FFS_H 41 #define _FFS_H 42 43 typedef struct { 44 int bsize; /* block size */ 45 int fsize; /* fragment size */ 46 int cpg; /* cylinders per group */ 47 int cpgflg; /* cpg was specified by user */ 48 int density; /* bytes per inode */ 49 int ntracks; /* number of tracks */ 50 int nsectors; /* number of sectors */ 51 int rpm; /* rpm */ 52 int minfree; /* free space threshold */ 53 int optimization; /* optimization (space or time) */ 54 int maxcontig; /* max contiguous blocks to allocate */ 55 int rotdelay; /* rotational delay between blocks */ 56 int maxbpg; /* maximum blocks per file in a cyl group */ 57 int nrpos; /* # of distinguished rotational positions */ 58 int avgfilesize; /* expected average file size */ 59 int avgfpdir; /* expected # of files per directory */ 60 int version; /* filesystem version (1 = FFS, 2 = UFS2) */ 61 int maxbsize; /* maximum extent size */ 62 int maxblkspercg; /* max # of blocks per cylinder group */ 63 /* XXX: support `old' file systems ? */ 64 } ffs_opt_t; 65 66 #endif /* _FFS_H */ 67