Commit 0aa67e75 authored Mar 30, 2016 by Paul E. McKenney

rcutorture: Add irqs-disabled test for call_rcu()



Mutation testing carried out by Iftekhar Ahmed of Oregon State
University showed that rcutorture is failing to test invocations
of call_rcu() having interrupts disabled.  This commit therefore
adds interrupt disabling around one of the existing invocations
of call_rcu() (and friends).

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

parent e9fb365a

kernel/rcu/rcutorture.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1478,7 +1478,9 @@ static int rcu_torture_barrier_cbs(void *arg)
		* The above smp_load_acquire() ensures barrier_phase load
		* is ordered before the folloiwng ->call().
		*/
		local_irq_disable(); /* Just to test no-irq call_rcu(). */
		cur_ops->call(&rcu, rcu_torture_barrier_cbf);
		local_irq_enable();
		if (atomic_dec_and_test(&barrier_cbs_count))
		wake_up(&barrier_wq);
		} while (!torture_must_stop());