[PATCH] ext3: journalled data fsync fix

This optimisation data=journal isn't working right, because journalled-data
pages are not marked dirty when they are dirty against the journal.  Hence
I_DIRTY_PAGES doesn't get set hence we can fail to sync the file under some
circumstances.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/ext3/fsync.c

@@ -49,10 +49,6 @@ int ext3_sync_file(struct file * file, struct dentry *dentry, int datasync)
 
 	J_ASSERT(ext3_journal_current_handle() == 0);
 
-	smp_mb();		/* prepare for lockless i_state read */
-	if (!(inode->i_state & I_DIRTY))
-		goto out;
-
 	/*
 	 * data=writeback:
 	 *  The caller's filemap_fdatawrite()/wait will sync the data.