From 3d268c9b136f51385f9d041f3f2424501b257388 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 23 Oct 2014 22:56:05 -0400
Subject: [PATCH] overlayfs: don't hold ->i_mutex over opening the real
 directory

just use it to serialize the assignment

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Reading git-format-patch failed