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| author | Eric Dumazet <edumazet@google.com> | 2017-02-04 16:49:21 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-02-05 01:38:28 +0100 |
| commit | 4d6308aac3258ecad8444811a16951a919adc131 (patch) | |
| tree | 866aefc115e959b34de38e715069ce0304c051af /crypto | |
| parent | Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirshe... (diff) | |
| download | linux-4d6308aac3258ecad8444811a16951a919adc131.tar.xz linux-4d6308aac3258ecad8444811a16951a919adc131.zip | |
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 'crypto')
0 files changed, 0 insertions, 0 deletions