Hello, Dave!

This set provides a unification for control socket usage/creation for
all protocols. The idea is to use sock rather than socket all around the
protocols. (This has been partly done previously for ICMP/IPv6 staff).

Additionally, the creation of such a sockets now performed uniformly via
inet_csk_ctl_sock_create.

After that TCP control socket is created and used on a per/namespace
basis.

Regards,
	Den

P.S. This set includes the patch discussed yesterday with Vlad Yasevich.