netdev - Deleting a network namespace

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Message-ID: <CAJJAcodGG6nmRNcF_rC+AUUpCp1MWjU3faGLfRTm9FNc6LT_Yw@mail.gmail.com>
Date:	Thu, 28 Mar 2013 12:43:27 +0200
From:	David Shwatrz <dshwatrz@...il.com>
To:	netdev@...r.kernel.org
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>
Subject: Deleting a network namespace

Hello,
When assigning a network interface to a network namespace and
afterwards deleting the namespace, we will not see the network
interface in any other namespace (including the default namespace) anymore:

ip netns add ns1
ip link set eth0 netns ns1
ip netns del ns1

This means that in fact we cannot use this interface again (only after
rebooting)
Am I right on this ?
Is moving an interface back to the default (init) namespace,
when deleting the namespace which contains it, can be considered?

(AFAIK, we don't need to check that this interface is in any other namespace,
because by definition, a network interface belongs only to one namespace)

DS
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