From: Paolo Abeni <pab...@redhat.com> Date: Fri, 31 Mar 2017 11:47:39 +0200
> In the udp_sock struct, the 'forward_deficit' and 'pcflag' fields > share the same cacheline. While the first is dirtied by > udp_recvmsg, the latter is read, possibly several times, by the > bottom half processing to discriminate between udp and udplite > sockets. > > With this patch, sk->sk_protocol is used to check is the socket is > really an udplite one, avoiding some cache misses per > packet and improving the performance under udp_flood with > small packet up to 10%. > > Signed-off-by: Paolo Abeni <pab...@redhat.com> Applied, thanks.
