tree 2c0e30146d70859144e25cdf665b09750fa6eb99
parent ee9d5461c0e88c51f08d0ef7149ce8469a4b4340
author Eric Dumazet <edumazet@google.com> 1479518283 -0800
committer David S. Miller <davem@davemloft.net> 1479745619 -0500

udp: avoid one cache line miss in recvmsg()

UDP_SKB_CB(skb)->partial_cov is located at offset 66 in skb,
requesting a cold cache line being read in cpu cache.

We can avoid this cache line miss for UDP sockets,
as partial_cov has a meaning only for UDPLite.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>