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freebsd/usr.sbin/makefs/ffs.h
Nathan Whitehorn afb6a168f8 Allocate extra inodes in makefs when leaving free space in UFS images.
By default, makefs(8) has very few spare inodes in its output images,
which is fine for static filesystems, but not so great for VM images
where many more files will be added. Make makefs(8) use the same
default settings as newfs(8) when creating images with free space --
there isn't much point to leaving free space on the image if you
can't put files there. If no free space is requested, use current
behavior of a minimal number of available inodes.

Reviewed by:	manu
MFC after:	3 weeks
Differential Revision:	https://reviews.freebsd.org/D29492
2021-04-06 13:43:29 -04:00

76 lines
3.1 KiB
C

/* $NetBSD: ffs.h,v 1.2 2004/12/20 20:51:42 jmc Exp $ */
/*-
* SPDX-License-Identifier: BSD-4-Clause
*
* Copyright (c) 2001-2003 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Luke Mewburn for Wasabi Systems, Inc.
*
* 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 for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
* 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.
*
* $FreeBSD$
*/
#ifndef _FFS_H
#define _FFS_H
#include <ufs/ufs/dinode.h>
#include <ufs/ffs/fs.h>
#include <stdbool.h>
typedef struct {
char label[MAXVOLLEN]; /* volume name/label */
int bsize; /* block size */
int fsize; /* fragment size */
int cpg; /* cylinders per group */
int cpgflg; /* cpg was specified by user */
int density; /* bytes per inode */
bool min_inodes; /* allocate minimum number of inodes */
int ntracks; /* number of tracks */
int nsectors; /* number of sectors */
int rpm; /* rpm */
int minfree; /* free space threshold */
int optimization; /* optimization (space or time) */
int maxcontig; /* max contiguous blocks to allocate */
int rotdelay; /* rotational delay between blocks */
int maxbpg; /* maximum blocks per file in a cyl group */
int nrpos; /* # of distinguished rotational positions */
int avgfilesize; /* expected average file size */
int avgfpdir; /* expected # of files per directory */
int version; /* filesystem version (1 = FFS, 2 = UFS2) */
int maxbsize; /* maximum extent size */
int maxblkspercg; /* max # of blocks per cylinder group */
int softupdates; /* soft updates */
/* XXX: support `old' file systems ? */
} ffs_opt_t;
#endif /* _FFS_H */