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head/lib/geom/journal/geom_journal_ufs.c
Property | Old Value | New Value |
---|---|---|
svn:keywords | null | FreeBSD=%H \ No newline at end of property |
/*- | |||||
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD | |||||
* | |||||
* Copyright (c) 2006 Pawel Jakub Dawidek <pjd@FreeBSD.org> | |||||
* 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. | |||||
* | |||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS 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 AUTHORS 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. | |||||
*/ | |||||
#include <sys/cdefs.h> | |||||
__FBSDID("$FreeBSD$"); | |||||
#include <sys/param.h> | |||||
#include <sys/disklabel.h> | |||||
#include <sys/mount.h> | |||||
#include <ufs/ufs/dinode.h> | |||||
#include <ufs/ffs/fs.h> | |||||
#include <libufs.h> | |||||
#include <libgeom.h> | |||||
#include <core/geom.h> | |||||
#include <misc/subr.h> | |||||
#include "geom_journal.h" | |||||
static struct fs * | |||||
read_superblock(const char *prov) | |||||
{ | |||||
static struct uufsd disk; | |||||
struct fs *fs; | |||||
if (ufs_disk_fillout(&disk, prov) == -1) | |||||
return (NULL); | |||||
fs = &disk.d_fs; | |||||
ufs_disk_close(&disk); | |||||
return (fs); | |||||
} | |||||
int | |||||
g_journal_ufs_exists(const char *prov) | |||||
{ | |||||
return (read_superblock(prov) != NULL); | |||||
} | |||||
int | |||||
g_journal_ufs_using_last_sector(const char *prov) | |||||
{ | |||||
struct fs *fs; | |||||
off_t psize, fssize; | |||||
fs = read_superblock(prov); | |||||
if (fs == NULL) | |||||
return (0); | |||||
/* Provider size in 512 bytes blocks. */ | |||||
psize = g_get_mediasize(prov) / DEV_BSIZE; | |||||
/* File system size in 512 bytes blocks. */ | |||||
fssize = fsbtodb(fs, fs->fs_size); | |||||
return (psize <= fssize); | |||||
} |