On Thu, Nov 01, 2012 at 11:50:24AM -0400, David Miller wrote: > From: "Michael S. Tsirkin" <mst@xxxxxxxxxx> > Date: Wed, 31 Oct 2012 12:31:06 +0200 > > > -void vhost_zerocopy_callback(struct ubuf_info *ubuf) > > +void vhost_zerocopy_callback(struct ubuf_info *ubuf, int zerocopy_status) > > If you're only reporting true/false values, even just for now, > please use 'bool' for this. In fact next patch reports -ENOMEM when tun hits OOM so callback can distinguish between copy (>0 value) and error (<0 value) and reduce zerocopy more aggressively in case of errors. The *callback* in vhost-net currently handles all non-zero values identically, but I am not sure it's the optimal behaviour so I thought it's worth it to give callbacks the info. Do you think it's over-engineering, or a good idea? -- MST -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
