Re: [PATCH v2 1/4] Defer skb allocation -- add destroy buffersfunction for virtio

[Michael S. Tsirkin]

On Mon, Dec 14, 2009 at 03:22:22PM -0800, Shirley Ma wrote:
> Hello Michael,
> 
> On Mon, 2009-12-14 at 22:22 +0200, Michael S. Tsirkin wrote:
> > I dont insist, but my idea was
> > 
> > for (;;) {
> >         b = vq->destroy(vq);
> >         if (!b)
> >                 break;
> >         --vi->num;
> >         put_page(b);
> > }
> > 
> > so we do not have to lose track of the counter.
> 
> That's not a bad idea, but to do this, then this fuction will be
> specific for virtio_net device (vi is virtnet_info) only in a generic
> virtqueue API.
> 
> Thanks
> Shirley

No, this code would be in virtio net.
destroy would simply be the virtqueue API that returns
data pointer.

-- 
MST
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