Re: [PATCH net-next] virtio-net: avoid unnecessary sg initialzation

From: David Miller
Date: Thu Aug 27 2015 - 18:52:18 EST

From: Jason Wang <jasowang@xxxxxxxxxx>
Date: Thu, 27 Aug 2015 14:53:06 +0800

> Usually an skb does not have up to MAX_SKB_FRAGS frags. So no need to
> initialize the unuse part of sg. This patch initialize the sg based on
> the real number it will used:
> - during xmit, it could be inferred from nr_frags and can_push.
> - for small receive buffer, it will also be 2.
> Cc: Michael S. Tsirkin <mst@xxxxxxxxxx>
> Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx>

This looks fine, thanks Jason.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at