linux-kernel - Re: [PATCH] netlink: switch net_ns only if net is not init

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Date:	Sun, 09 Mar 2014 19:09:41 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	guz.fnst@...fujitsu.com
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] netlink: switch net_ns only if net is not init_net

From: Gu Zheng <guz.fnst@...fujitsu.com>
Date: Fri, 07 Mar 2014 18:47:30 +0800

> Many netlink users create netlink sock in the init_net, and the
> switching nes_ns(init_net-->net) is needless in this case. So here
> we add a pre-check to avoid this.
> 
> Signed-off-by: Gu Zheng <guz.fnst@...fujitsu.com>

This check is more appropriately placed into sk_change_net() itself.
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