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Date: Wed, 29 Mar 2017 06:46:27 -0400 (EDT) From: Pankaj Gupta <pagupta@...hat.com> To: Jason Wang <jasowang@...hat.com> Cc: "Michael S. Tsirkin" <mst@...hat.com>, kvm@...r.kernel.org, virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH net-next 7/8] vhost_net: try batch dequing from skb array Hi Jason, > > On 2017年03月23日 13:34, Jason Wang wrote: > > > > > >> > >>> +{ > >>> + if (rvq->rh != rvq->rt) > >>> + goto out; > >>> + > >>> + rvq->rh = rvq->rt = 0; > >>> + rvq->rt = skb_array_consume_batched_bh(rvq->rx_array, rvq->rxq, > >>> + VHOST_RX_BATCH); > >> A comment explaining why is is -bh would be helpful. > > > > Ok. > > > > Thanks > > Rethink about this. It looks like -bh is not needed in this case since > no consumer run in bh. In that case do we need other variants of "ptr_ring_consume_batched_*()" functions. Are we planning to use them in future? > > Thanks >
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