diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c index da7b40fdf6d0d90c9e9500151ef683035a05c65c..70b47bc928b9d87ac92c9226a9a89ef1074e5f1f 100644 --- a/kernel/time/tick-broadcast.c +++ b/kernel/time/tick-broadcast.c @@ -725,11 +725,15 @@ int __tick_broadcast_oneshot_control(enum tick_broadcast_state state) * if the cpu local event is earlier than the * broadcast event. If the current CPU is in * the force mask, then we are going to be - * woken by the IPI right away. + * woken by the IPI right away; we return + * busy, so the CPU does not try to go deep + * idle. */ - if (!cpumask_test_cpu(cpu, tick_broadcast_force_mask) && - dev->next_event.tv64 < bc->next_event.tv64) + if (cpumask_test_cpu(cpu, tick_broadcast_force_mask)) { + ret = -EBUSY; + } else if (dev->next_event.tv64 < bc->next_event.tv64) { tick_broadcast_set_event(bc, cpu, dev->next_event); + } } /* * If the current CPU owns the hrtimer broadcast