Commit 7a6a4107 authored by Paul E. McKenney's avatar Paul E. McKenney
Browse files

rcu: Make rcutorture emit online failures if verbose 



Although rcutorture counts CPU-hotplug online failures, it does
not explicitly record which CPUs were having trouble coming online.
This commit therefore emits a console message when online failure occurs.

Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: default avatarJosh Triplett <josh@joshtriplett.org>
parent ef47db8e

kernel/rcutorture.c

+7 −1
Original line number Diff line number Diff line
@@ -1434,7 +1434,13 @@ rcu_torture_onoff(void *arg) 
					 torture_type, cpu);

			starttime = jiffies;

			n_online_attempts++;

			if (cpu_up(cpu) == 0) {

			ret = cpu_up(cpu);

			if (ret) {

				if (verbose)

					pr_alert("%s" TORTURE_FLAG

						 "rcu_torture_onoff task: online %d failed: errno %d\n",

						 torture_type, cpu, ret);

			} else {

				if (verbose)

					pr_alert("%s" TORTURE_FLAG

						 "rcu_torture_onoff task: onlined %d\n",