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Date:	Tue, 22 May 2007 08:59:15 +0100
From:	Kieran Mansley <>
To:	Keir Fraser <>
Cc:	Stephen Hemminger <>,,,,
Subject: Re: [Xen-devel] Re: [PATCH 3/4] [Net] Support Xen accelerated
	network plugin modules

On Tue, 2007-05-22 at 08:48 +0100, Keir Fraser wrote:
> On 22/5/07 08:28, "Kieran Mansley" <> wrote:
> > On Tue, 2007-05-22 at 08:15 +0100, Kieran Mansley wrote:
> >> RCU on its own wouldn't
> >> prevent the accelerated plugin being unloaded while netfront was using
> >> one of the hooks.
> > 
> > Hmm, actually I think it could be used to do that.  I'll take a look.
> Eagerly zap the function pointers, then wait one RCU period so every CPU
> goes through a quiescent point before unloading the module?

Yes, that's what I was going to try.  


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