diff options
Diffstat (limited to 'drivers/cpuidle/cpuidle.c')
| -rw-r--r-- | drivers/cpuidle/cpuidle.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c index ee9df5e3f5e..125150dc6e8 100644 --- a/drivers/cpuidle/cpuidle.c +++ b/drivers/cpuidle/cpuidle.c @@ -223,8 +223,14 @@ void cpuidle_uninstall_idle_handler(void) { if (enabled_devices) { initialized = 0; - kick_all_cpus_sync(); + wake_up_all_idle_cpus(); } + + /* + * Make sure external observers (such as the scheduler) + * are done looking at pointed idle states. + */ + synchronize_rcu(); } /** @@ -530,11 +536,6 @@ EXPORT_SYMBOL_GPL(cpuidle_register); #ifdef CONFIG_SMP -static void smp_callback(void *v) -{ - /* we already woke the CPU up, nothing more to do */ -} - /* * This function gets called when a part of the kernel has a new latency * requirement. This means we need to get all processors out of their C-state, @@ -544,7 +545,7 @@ static void smp_callback(void *v) static int cpuidle_latency_notify(struct notifier_block *b, unsigned long l, void *v) { - smp_call_function(smp_callback, NULL, 1); + wake_up_all_idle_cpus(); return NOTIFY_OK; } |