netdev - Re: [PATCH] decnet: RCU conversion and get rid of dev_base

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Date:	Mon, 08 Nov 2010 13:43:51 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	steve@...gwyn.com
Cc:	eric.dumazet@...il.com, netdev@...r.kernel.org
Subject: Re: [PATCH] decnet: RCU conversion and get rid of dev_base_lock

From: Steven Whitehouse <steve@...gwyn.com>
Date: Fri, 29 Oct 2010 14:54:39 +0100

> Hi,
> 
> On Fri, 2010-10-29 at 15:09 +0200, Eric Dumazet wrote:
>> While tracking dev_base_lock users, I found decnet used it in
>> dnet_select_source(), but for a wrong purpose:
>> 
>> Writers only hold RTNL, not dev_base_lock, so readers must use RCU if
>> they cannot use RTNL.
>> 
>> Adds an rcu_head in struct dn_ifaddr and handle proper RCU management.
>> 
>> Adds __rcu annotation in dn_route as well.
>> 
>> Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>
> 
> I've not tested this, but I've read through it all and it seems good to
> me.
> 
> Acked-by: Steven Whitehouse <swhiteho@...hat.com>

Applied.
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