Merge branch 'pernet-convert-part8'

Kirill Tkhai says:

====================
Converting pernet_operations (part #8)

this series continues to review and to convert pernet_operations
to make them possible to be executed in parallel for several
net namespaces at the same time. There are different operations
over the tree, mostly are ipvs.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>