Merge branch 'rds-tcp-fixes'

Sowmini Varadhan says:

====================
rds: tcp: fixes

Patch1 is a bug fix for correct reconnect when a connection
is restarted. Patch 2 accelerates cleanup by setting linger
to 1 and sending a RST to the peer.
====================

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