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virtio_net: replace netdev_alloc_skb_ip_align() with napi_alloc_skb()

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This gives small but noticeable rx performance improvement (2-3%)
and will allow exploiting future napi improvement.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Paolo Abeni 2016-03-17 15:44:00 +01:00 committed by Michael S. Tsirkin
parent 0308813724
commit c67f5db820
1 changed files with 1 additions and 1 deletions
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2
drivers/net/virtio_net.c
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@ -256,7 +256,7 @@ static struct sk_buff *page_to_skb(struct virtnet_info *vi,
p = page_address(page) + offset;
/* copy small packet so we can reuse these pages for small data */
skb = netdev_alloc_skb_ip_align(vi->dev, GOOD_COPY_LEN);
skb = napi_alloc_skb(&rq->napi, GOOD_COPY_LEN);
if (unlikely(!skb))
return NULL;