Author: Christine Caulfield <ccaulfie(a)redhat.com>
Date: 2017-05-26 (Fri, 26 May 2017)
[sctp] Don't hold global_rwlock while sleeping.
The SCTP connect and accept threads can do small sleeps
when there are errors. The global_rwlock should not be held
while this is happening.
While the lock is a read lock and doesn't block sending and
receiving in other threads it can cause a deadlock on shutdown.
Signed-off-by: Christine Caulfield <ccaulfie(a)redhat.com>