On Tue, Aug 25, 2009 at 04:16:34PM +0300, Michael S. Tsirkin wrote: > > > + /* If they don't want an interrupt, don't send one, unless empty. */ > > > + if ((flags & VRING_AVAIL_F_NO_INTERRUPT) && vq->inflight) > > > + return; > > > > And I wouldn't support notify on empty at all, TBH. > > If I don't, virtio net in guest uses a timer, which might be expensive. > Will need to check what this does. > > > It should > > definitely be conditional on the guest accepting the NOTIFY_ON_EMPTY > > feature. lguest does not do it this way though, do it? -- 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
