From dbef0c1c4c5f8ce5d1f5bd8cee092a7afb4ac21b Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Sat, 9 Mar 2013 16:15:23 -0800
Subject: [PATCH] namespaces: Simplify copy_namespaces so it is clear what is
 going on.

Remove the test for the impossible case where tsk->nsproxy == NULL.  Fork
will never be called with tsk->nsproxy == NULL.

Only call get_nsproxy when we don't need to generate a new_nsproxy,
and mark the case where we don't generate a new nsproxy as likely.

Remove the code to drop an unnecessarily acquired nsproxy value.

Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
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