This commit adds irq, NMI, and softirq context checks to the rcu_torture_timer() function. Just because you are paranoid does not mean that they are not out to get you... ;-)
Signed-off-by: Paul E. McKenney <[email protected]> --- kernel/rcu/rcutorture.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index d00b043823aef..63053031ade21 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -2454,6 +2454,9 @@ static DEFINE_TORTURE_RANDOM_PERCPU(rcu_torture_timer_rand); */ static void rcu_torture_timer(struct timer_list *unused) { + WARN_ON_ONCE(!in_serving_softirq()); + WARN_ON_ONCE(in_hardirq()); + WARN_ON_ONCE(in_nmi()); atomic_long_inc(&n_rcu_torture_timers); (void)rcu_torture_one_read(this_cpu_ptr(&rcu_torture_timer_rand), -1); -- 2.40.1
