net/ipv4: add dst cache support for gre lwtunnels
authorPaolo Abeni <pabeni@redhat.com>
Fri, 12 Feb 2016 14:43:59 +0000 (15:43 +0100)
committerDavid S. Miller <davem@davemloft.net>
Wed, 17 Feb 2016 01:21:49 +0000 (20:21 -0500)
commit3c1cb4d2604c03779a6c9485204e2a80be6c28f0
tree576d9b9b839017a90b336b2908b95dd6f2668e4e
parent468dfffcd762cbb2777ec5a76bc21e3748ebf47e
net/ipv4: add dst cache support for gre lwtunnels

In case of UDP traffic with datagram length below MTU this
gives about 4% performance increase

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Suggested-and-Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/ip_gre.c