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| author |   Eric Dumazet <edumazet@google.com> | 2016-11-18 17:18:03 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-11-21 11:26:59 -0500 |
| commit | d21dbdfe0afb5195607d207f894fe86d5b322d46 (patch) | |
| tree | 2c0e30146d70859144e25cdf665b09750fa6eb99 /net/ipv4/tcp_scalable.c | |
| parent | Merge branch 'mlx5-bpf-refcnt-fixes' (diff) | |
| download | wireguard-linux-d21dbdfe0afb5195607d207f894fe86d5b322d46.tar.xz wireguard-linux-d21dbdfe0afb5195607d207f894fe86d5b322d46.zip | |
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>
Diffstat (limited to 'net/ipv4/tcp_scalable.c')
0 files changed, 0 insertions, 0 deletions