From 9ad1aaa61522ffba001a5599623182fe23083a94 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 12 May 2015 16:44:39 -0400
Subject: [PATCH] namei: shift nameidata inside filename_lookup()

pass root instead; non-NULL => copy to nd.root and
set LOOKUP_ROOT in flags

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