rcutorture: Test extended "rcu" read-side critical sections

This commit makes the "rcu" torture type test extended read-side
critical sections in order to test the deferral of RCU-preempt
quiescent-state testing.

In CONFIG_PREEMPT=n kernels, this simply duplicates the setup already
in place for the "sched" torture type.

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

diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index c596c6f..c55d148 100644 (file)
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -431,6 +431,7 @@ static struct rcu_torture_ops rcu_ops = {
        .stats          = NULL,
        .irq_capable    = 1,
        .can_boost      = rcu_can_boost(),
+       .extendables    = RCUTORTURE_MAX_EXTEND,
        .name           = "rcu"
 };