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authorEric Dumazet <edumazet@google.com>2017-02-04 07:49:21 -0800
committerDavid S. Miller <davem@davemloft.net>2017-02-04 19:38:28 -0500
commit4d6308aac3258ecad8444811a16951a919adc131 (patch)
tree866aefc115e959b34de38e715069ce0304c051af /include
parenta076d1bdc678a2b9157660af8bd691322c0ba3dd (diff)
virtio_net: exploit napi_complete_done() return value
Since commit 364b6055738b ("net: busy-poll: return busypolling status to drivers"), napi_complete_done() returns a boolean that can be used by drivers to conditionally rearm interrupts. This patch changes virtio_net to use this boolean to avoid a bit of overhead for busy-poll users. Jason reports about 1.1% improvement for 1 byte TCP_RR (burst 100). Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Jason Wang <jasowang@redhat.com> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
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