From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH net-next-2.6] udp: use atomic_inc_not_zero_hint
Date: Tue, 16 Nov 2010 11:35:19 -0800 (PST)
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From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Tue, 16 Nov 2010 06:58:26 +0100

> UDP sockets refcount is usually 2, unless an incoming frame is going to
> be queued in receive or backlog queue.
> 
> Using atomic_inc_not_zero_hint() permits to reduce latency, because
> processor issues less memory transactions.
> 
> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>

Applied.