The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/geom/journal/g_journal_ufs.c

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    1 /*-
    2  * Copyright (c) 2005-2006 Pawel Jakub Dawidek <pjd@FreeBSD.org>
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  */
   26 
   27 #include <sys/cdefs.h>
   28 __FBSDID("$FreeBSD$");
   29 
   30 #include <sys/param.h>
   31 #include <sys/systm.h>
   32 #include <sys/vnode.h>
   33 #include <sys/mount.h>
   34 
   35 #include <ufs/ufs/extattr.h>
   36 #include <ufs/ufs/quota.h>
   37 #include <ufs/ufs/inode.h>
   38 #include <ufs/ufs/ufs_extern.h>
   39 #include <ufs/ufs/ufsmount.h>
   40 
   41 #include <ufs/ffs/fs.h>
   42 #include <ufs/ffs/ffs_extern.h>
   43 
   44 #include <geom/geom.h>
   45 #include <geom/journal/g_journal.h>
   46 
   47 static const int superblocks[] = SBLOCKSEARCH;
   48 
   49 static int
   50 g_journal_ufs_clean(struct mount *mp)
   51 {
   52         struct ufsmount *ump;
   53         struct fs *fs;
   54         int flags;
   55 
   56         ump = VFSTOUFS(mp);
   57         fs = ump->um_fs;
   58 
   59         flags = fs->fs_flags;
   60         fs->fs_flags &= ~(FS_UNCLEAN | FS_NEEDSFSCK);
   61         ffs_sbupdate(ump, MNT_WAIT, 1);
   62         fs->fs_flags = flags;
   63 
   64         return (0);
   65 }
   66 
   67 static void
   68 g_journal_ufs_dirty(struct g_consumer *cp)
   69 {
   70         struct fs *fs;
   71         int error, i, sb;
   72 
   73         if (SBLOCKSIZE % cp->provider->sectorsize != 0)
   74                 return;
   75         for (i = 0; (sb = superblocks[i]) != -1; i++) {
   76                 if (sb % cp->provider->sectorsize != 0)
   77                         continue;
   78                 fs = g_read_data(cp, sb, SBLOCKSIZE, NULL);
   79                 if (fs == NULL)
   80                         continue;
   81                 if (fs->fs_magic != FS_UFS1_MAGIC &&
   82                     fs->fs_magic != FS_UFS2_MAGIC) {
   83                         g_free(fs);
   84                         continue;
   85                 }
   86                 GJ_DEBUG(0, "clean=%d flags=0x%x", fs->fs_clean, fs->fs_flags);
   87                 fs->fs_clean = 0;
   88                 fs->fs_flags |= FS_NEEDSFSCK | FS_UNCLEAN;
   89                 error = g_write_data(cp, sb, fs, SBLOCKSIZE);
   90                 g_free(fs);
   91                 if (error != 0) {
   92                         GJ_DEBUG(0, "Cannot mark file system %s as dirty "
   93                             "(error=%d).", cp->provider->name, error);
   94                 } else {
   95                         GJ_DEBUG(0, "File system %s marked as dirty.",
   96                             cp->provider->name);
   97                 }
   98         }
   99 }
  100 
  101 const struct g_journal_desc g_journal_ufs = {
  102         .jd_fstype = "ufs",
  103         .jd_clean = g_journal_ufs_clean,
  104         .jd_dirty = g_journal_ufs_dirty
  105 };
  106 
  107 MODULE_DEPEND(g_journal, ufs, 1, 1, 1);
  108 MODULE_VERSION(geom_journal, 0);

Cache object: 562a0a60d4f81d3bbe7f45c1592ea908


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