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From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH] netns: keep vlan slaves on master netns move
Date: Fri, 17 Sep 2010 10:56:08 -0700 (PDT)
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From: David Lamparter <equinox@diac24.net>
Date: Fri, 17 Sep 2010 15:22:19 +0200

> previously, if a vlan master device was moved from one network namespace
> to another, all 802.1q and macvlan slaves were deleted.
> 
> we can use dev->reg_state to figure out whether dev_change_net_namespace
> is happening, since that won't set dev->reg_state NETREG_UNREGISTERING.
> so, this changes 8021q and macvlan to ignore NETDEV_UNREGISTER when
> reg_state is not NETREG_UNREGISTERING.
> 
> Signed-off-by: David Lamparter <equinox@diac24.net>
> Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
> Acked-by: Daniel Lezcano <daniel.lezcano@free.fr>
> Acked-by: Patrick McHardy <kaber@trash.net>
> ---
> Hi David,
> 
> Q)ueue, F)eedback, A)pply?

I'll apply this when I get a chance, thanks.