Re: [PATCH net-next v7 3/4] net: vhost: factor out busy polling logic to vhost_net_busy_poll()

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On 2018年08月01日 17:52, Tonghao Zhang wrote:
+
+             cpu_relax();
+     }
+
+     preempt_enable();
+
+     if (!rx)
+             vhost_net_enable_vq(net, vq);
No need to enable rx virtqueue, if we are sure handle_rx() will be
called soon.
If we disable rx virtqueue in handle_tx and don't send packets from
guest anymore(handle_tx is not called), so we can wake up for sock rx.
so the network is broken.

Not sure I understand here. I mean is we schedule work for handle_rx(), there's no need to enable it since handle_rx() will do this for us.

Thanks
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