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Subject[PATCH] fsync on unmounting root
Hi guys,

Looks like the prerelease, and at least test13 don't fsync the device when
someone does an unmount on /

mount -o remount works, just unmounting the root misses the fsync.

This patch works for me:

-chris

--- linux/fs/super.c.1 Thu Jan 4 13:38:55 2001
+++ linux/fs/super.c Thu Jan 4 13:38:39 2001
@@ -1031,8 +1031,12 @@
* we just try to remount it readonly.
*/
mntput(mnt);
- if (!(sb->s_flags & MS_RDONLY))
+ if (!(sb->s_flags & MS_RDONLY)) {
+ shrink_dcache_sb(sb);
+ fsync_dev(sb->s_dev);
+ acct_auto_close(sb->s_dev);
retval = do_remount_sb(sb, MS_RDONLY, 0);
+ }
return retval;
}

-
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