From: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Date: Thu, 24 Jan 2013 23:51:31 +0000 (+0000)
Subject: virtio-net: reset virtqueue affinity when doing cpu hotplug
X-Git-Tag: v3.8-rc6~20^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8de4b2f3ae90c8fc0f17eeaab87d5a951b66ee17;p=pandora-kernel.git

virtio-net: reset virtqueue affinity when doing cpu hotplug

Add a cpu notifier to virtio-net, so that we can reset the
virtqueue affinity if the cpu hotplug happens. It improve
the performance through enabling or disabling the virtqueue
affinity after doing cpu hotplug.

Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Eric Dumazet <erdnetdev@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: virtualization@lists.linux-foundation.org
Cc: netdev@vger.kernel.org
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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