From 9559f68915024ece8be3781003f25aef3677e574 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 28 Sep 2013 20:47:57 -0400
Subject: [PATCH] fold dup_mnt_ns() into its only surviving caller

should've been done 6 years ago...

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