Merge remote-tracking branch 'asoc/topic/component' into asoc-next

[firefly-linux-kernel-4.4.55.git] / kernel / time / tick-sched.c

diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 99aa6ee3908fbbff83923b2a8bb4c72b06e3f281..f654a8a298fad5cac36465bdcb23fddeb854f2ef 100644 (file)
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -224,6 +224,20 @@ static DEFINE_PER_CPU(struct irq_work, nohz_full_kick_work) = {
        .func = nohz_full_kick_work_func,
 };
 
+/*
+ * Kick this CPU if it's full dynticks in order to force it to
+ * re-evaluate its dependency on the tick and restart it if necessary.
+ * This kick, unlike tick_nohz_full_kick_cpu() and tick_nohz_full_kick_all(),
+ * is NMI safe.
+ */
+void tick_nohz_full_kick(void)
+{
+       if (!tick_nohz_full_cpu(smp_processor_id()))
+               return;
+
+       irq_work_queue(&__get_cpu_var(nohz_full_kick_work));
+}
+
 /*
  * Kick the CPU if it's full dynticks in order to force it to
  * re-evaluate its dependency on the tick and restart it if necessary.