diff options
Diffstat (limited to 'kernel/cpu')
| -rw-r--r-- | kernel/cpu/idle.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/kernel/cpu/idle.c b/kernel/cpu/idle.c index 168cf407a25..8b86c0c68ed 100644 --- a/kernel/cpu/idle.c +++ b/kernel/cpu/idle.c @@ -76,7 +76,16 @@ static void cpu_idle_loop(void) local_irq_disable(); arch_cpu_idle_enter(); - if (cpu_idle_force_poll) { + /* + * In poll mode we reenable interrupts and spin. + * + * Also if we detected in the wakeup from idle + * path that the tick broadcast device expired + * for us, we don't want to go deep idle as we + * know that the IPI is going to arrive right + * away + */ + if (cpu_idle_force_poll || tick_check_broadcast_expired()) { cpu_idle_poll(); } else { current_clr_polling(); |