Re: [PATCH RFC] virtio_net: fix refill related races

From: Tejun Heo
Date: Tue Dec 20 2011 - 14:32:08 EST


On Tue, Dec 20, 2011 at 09:30:55PM +0200, Michael S. Tsirkin wrote:
> Hmm, in that case it looks like a nasty race could get
> triggered, with try_fill_recv run on multiple CPUs in parallel,
> corrupting the linked list within the vq.
>
> Using the mutex as my patch did will fix that naturally, as well.

Don't know the code but just use nrt wq. There's even a system one
called system_nrq_wq.

Thanks.

--
tejun
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