netdev - Re: [net-next-2.6 PATCH 0/6] net: Speedup netdevice unregisters

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Message-Id: <20091028.022318.155344824.davem@davemloft.net>
Date:	Wed, 28 Oct 2009 02:23:18 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	netdev@...r.kernel.org
Subject: Re: [net-next-2.6 PATCH 0/6] net: Speedup netdevice unregisters

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Tue, 27 Oct 2009 18:02:19 +0100

> netdevice unregisters are serialized and call synchronize_{net|rcu}()
> three times per device.
> 
> This means it can take a long time to remove a device, if many virtual
> devices are attached. (vlan, macvlan, tunnels, ...)
>
> This patch series partially solve the problem by batching several devices in a list,
> so that two synchronize_net() calls can be factorized.

Looks really good Eric.

> PATCH 1/6 : net: Introduce unregister_netdevice_queue()
> PATCH 2/6 : net: Introduce unregister_netdevice_many()
> PATCH 3/6 : net: Add a list_head parameter to dellink() method
> PATCH 4/6 : vlan: Optimize multiple unregistration
> PATCH 5/6 : ipip: Optimize multiple unregistration
> PATCH 6/6 : gre: Optimize multiple unregistration
> 

All applied to net-next-2.6, thanks!
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