minix/sys/fs/v7fs/v7fs_superblock_util.c

102 lines
3.2 KiB
C
Raw Normal View History

/* $NetBSD: v7fs_superblock_util.c,v 1.2 2011/07/18 21:51:49 apb Exp $ */
/*-
* Copyright (c) 2011 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by UCHIYAMA Yasushi.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: v7fs_superblock_util.c,v 1.2 2011/07/18 21:51:49 apb Exp $");
#if defined _KERNEL_OPT
#include "opt_v7fs.h"
#endif
#ifdef _KERNEL
#include <sys/systm.h>
#include <sys/param.h> /* errno */
#else
#include <stdio.h>
#include <time.h>
#endif
#include "v7fs.h"
#include "v7fs_impl.h"
#include "v7fs_superblock.h"
#include "v7fs_inode.h"
#ifdef V7FS_SUPERBLOCK_DEBUG
#define DPRINTF(fmt, args...) printf("%s: " fmt, __func__, ##args)
#define DPRINTF_(fmt, args...) printf(fmt, ##args)
#else
#define DPRINTF(fmt, args...) ((void)0)
#define DPRINTF_(fmt, args...) ((void)0)
#endif
void
v7fs_superblock_status(struct v7fs_self *fs)
{
struct v7fs_superblock *sb = &fs->superblock;
struct v7fs_stat *stat = &fs->stat;
stat->total_blocks = sb->volume_size - sb->datablock_start_sector;
stat->total_inode = V7FS_MAX_INODE(sb);
stat->free_inode = sb->total_freeinode;
stat->free_blocks = sb->total_freeblock;
stat->total_files = stat->total_inode - sb->total_freeinode - 1;
DPRINTF("block %d/%d, inode %d/%d\n", stat->free_blocks,
stat->total_blocks, stat->free_inode, stat->total_inode);
}
void
v7fs_superblock_dump(const struct v7fs_self *fs)
{
const struct v7fs_superblock *sb = &fs->superblock;
#define print(x) printf("%s: %d\n", #x, sb->x)
print(datablock_start_sector);
print(volume_size);
print(nfreeblock);
print(nfreeinode);
print(update_time);
print(lock_freeblock);
print(lock_freeinode);
print(modified);
print(readonly);
#if !defined _KERNEL
time_t t = sb->update_time;
printf("%s", ctime(&t));
#endif
print(total_freeblock);
print(total_freeinode);
#undef print
}