Merge tag 'ipvs2-for-v4.7' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/ipvs-next

Simon Horman says:

====================
Second Round of IPVS Updates for v4.7

please consider these enhancements to the IPVS. They allow its DoS
mitigation strategy effective in conjunction with the SIP persistence
engine.
====================

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>