netdev - Re: [PATCH 2/3] PPTP: PPP over IPv4 (Point-to-Point Tunneling Protocol)

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Date:	Wed, 4 Aug 2010 10:25:35 -0700
From:	Stephen Hemminger <shemminger@...tta.com>
To:	xeb@...l.ru
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH 2/3] PPTP: PPP over IPv4 (Point-to-Point Tunneling
 Protocol)

On Wed, 04 Aug 2010 14:45:33 +0400
xeb@...l.ru wrote:

> +static DEFINE_RWLOCK(chan_lock);

A reader-writer lock is going to be slower than a spin lock
(or RCU) for this. IF possible, could you use RCU?

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