Commit 7a6a4107 authored Jun 21, 2013 by Paul E. McKenney

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: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh 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",