K 10
svn:author
V 3
rrs
K 8
svn:date
V 27
2016-04-28T13:27:12.034716Z
K 7
svn:log
V 350
This cleans up the timers code in TCP to start using the new
async_drain functionality. This as been tested in NF as well as
by Verisign. Still to do in here is to remove all the old flags. They
are currently left being maintained but probably are no longer needed.

Sponsored by:	Netflix Inc.
Differential Revision:	http://reviews.freebsd.org/D5924

END