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

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Date:	Thu, 05 Aug 2010 00:49:43 +0400
From:	xeb@...l.ru
To:	Stephen Hemminger <shemminger@...tta.com>
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH 2/3] PPTP: PPP over IPv4 (Point-to-Point Tunneling Protocol)

On Wed, 4 Aug 2010 10:25:35 -0700 Stephen Hemminger <shemminger@...tta.com> 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?
> 

don't know, need to think about ...

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