a23d879f34
journaling and can be tought about marking file system as clean before doing journal switch, which easly allows to add journaling to file systems that don't have this feature. Sponsored by: home.pl
108 lines
3.1 KiB
C
108 lines
3.1 KiB
C
/*-
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* Copyright (c) 2005-2006 Pawel Jakub Dawidek <pjd@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/vnode.h>
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#include <sys/mount.h>
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#include <ufs/ufs/extattr.h>
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#include <ufs/ufs/quota.h>
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#include <ufs/ufs/inode.h>
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#include <ufs/ufs/ufs_extern.h>
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#include <ufs/ufs/ufsmount.h>
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#include <ufs/ffs/fs.h>
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#include <ufs/ffs/ffs_extern.h>
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#include <geom/geom.h>
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#include <geom/journal/g_journal.h>
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static const int superblocks[] = SBLOCKSEARCH;
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static int
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g_journal_ufs_clean(struct mount *mp)
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{
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struct ufsmount *ump;
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struct fs *fs;
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int flags;
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ump = VFSTOUFS(mp);
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fs = ump->um_fs;
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flags = fs->fs_flags;
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fs->fs_flags &= ~(FS_UNCLEAN | FS_NEEDSFSCK);
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ffs_sbupdate(ump, MNT_WAIT, 1);
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fs->fs_flags = flags;
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return (0);
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}
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static void
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g_journal_ufs_dirty(struct g_consumer *cp)
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{
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struct fs *fs;
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int error, i, sb;
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if (SBLOCKSIZE % cp->provider->sectorsize != 0)
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return;
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for (i = 0; (sb = superblocks[i]) != -1; i++) {
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if (sb % cp->provider->sectorsize != 0)
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continue;
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fs = g_read_data(cp, sb, SBLOCKSIZE, NULL);
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if (fs == NULL)
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continue;
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if (fs->fs_magic != FS_UFS1_MAGIC &&
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fs->fs_magic != FS_UFS2_MAGIC) {
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g_free(fs);
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continue;
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}
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GJ_DEBUG(0, "clean=%d flags=0x%x", fs->fs_clean, fs->fs_flags);
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fs->fs_clean = 0;
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fs->fs_flags |= FS_NEEDSFSCK | FS_UNCLEAN;
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error = g_write_data(cp, sb, fs, SBLOCKSIZE);
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g_free(fs);
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if (error != 0) {
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GJ_DEBUG(0, "Cannot mark file system %s as dirty "
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"(error=%d).", cp->provider->name, error);
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} else {
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GJ_DEBUG(0, "File system %s marked as dirty.",
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cp->provider->name);
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}
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}
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}
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const struct g_journal_desc g_journal_ufs = {
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.jd_fstype = "ufs",
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.jd_clean = g_journal_ufs_clean,
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.jd_dirty = g_journal_ufs_dirty
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};
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MODULE_DEPEND(g_journal, ufs, 1, 1, 1);
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