udp: avoid one cache line miss in recvmsg()

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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>

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Eric Dumazet 2016-11-18 17:18:03 -08:00 • committed by David S. Miller

parent ee9d5461c0

commit d21dbdfe0a

2 changed files with 4 additions and 2 deletions

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3

net/ipv4/udp.c

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3

net/ipv6/udp.c

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