From: Anna-Maria Gleixner <[email protected]> The hotplug notifier rcutorture_cpu_notify() doesn't consider the corresponding CPU_XXX_FROZEN transitions. They occur on suspend/resume and are usually handled the same way as the corresponding non frozen transitions.
Mask the switch case action argument with '~CPU_TASKS_FROZEN' to map CPU_XXX_FROZEN hotplug transitions on corresponding non-frozen transitions. Cc: Josh Triplett <[email protected]> Cc: "Paul E. McKenney" <[email protected]> Signed-off-by: Anna-Maria Gleixner <[email protected]> Signed-off-by: Paul E. McKenney <[email protected]> --- kernel/rcu/rcutorture.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index 52b49fe90919..633a68a09440 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -1585,7 +1585,7 @@ static int rcutorture_cpu_notify(struct notifier_block *self, { long cpu = (long)hcpu; - switch (action) { + switch (action & ~CPU_TASKS_FROZEN) { case CPU_ONLINE: case CPU_DOWN_FAILED: (void)rcutorture_booster_init(cpu); -- 2.5.2
