Merge branch 'rcu/urgent' of...

Merge branch 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

 into core/urgent

Pull low probability CONFIG_RCU_BOOST=y deadlock fix from Paul E. McKenney.

Signed-off-by: Ingo Molnar <mingo@kernel.org>