linux-kernel - Re: [PATCH net-next-2.6 V2] igmp: RCU conversion of in_dev->mc

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Message-Id: <20101112.131936.191390015.davem@davemloft.net>
Date:	Fri, 12 Nov 2010 13:19:36 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	xiyou.wangcong@...il.com, cypher.w@...il.com,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH net-next-2.6 V2] igmp: RCU conversion of in_dev->mc_list

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Fri, 12 Nov 2010 16:46:50 +0100

> [PATCH net-next-2.6 V2] igmp: RCU conversion of in_dev->mc_list
> 
> in_dev->mc_list is protected by one rwlock (in_dev->mc_list_lock).
> 
> This can easily be converted to a RCU protection.
> 
> Writers hold RTNL, so mc_list_lock is removed, not replaced by a
> spinlock.
> 
> Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>

This looks good to me, so I've applied it to net-next-2.6

We have enough time there to fix any fallout or revert if
necessary.
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