Re: [Xen-devel] Re: [PATCH 3/4] [Net] Support Xen accelerated network plugin modules

Kieran Mansley
2007-05-22T07:59:15Z

On Tue, 2007-05-22 at 08:48 +0100, Keir Fraser wrote:
>
>
> On 22/5/07 08:28, "Kieran Mansley"
<kmansley@solarflare.com> 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.

Kieran