From c336d148adc4181f31741ae066df41429be64b67 Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Thu, 24 May 2012 17:56:43 -0600
Subject: [PATCH] userns: Implement sk_user_ns

Add a helper sk_user_ns to make it easy to find the user namespace
of the process that opened a socket.

Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
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Reading git-format-patch failed