Commit-ID: 0aa67e75b3d59cfe412bfa54ca23797e6c2e3270 Gitweb: http://git.kernel.org/tip/0aa67e75b3d59cfe412bfa54ca23797e6c2e3270 Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> AuthorDate: Wed, 30 Mar 2016 11:40:44 -0700 Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> CommitDate: Thu, 21 Apr 2016 13:47:04 -0700 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@xxxxxxxxxxxxxxxxxx> --- kernel/rcu/rcutorture.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index 633a68a..084a28a 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -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()); -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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