From 4ebc581828d5d0fe189ca06cef8b7a63cb4583d5 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@suse.cz>
Date: Sat, 13 Dec 2014 00:59:46 +0100
Subject: [PATCH] ovl: allow statfs if no upper layer

Handle "no upper layer" case in statfs.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
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