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Diffstat (limited to 'kernel/time/tick-broadcast.c')
-rw-r--r--kernel/time/tick-broadcast.c19
1 files changed, 12 insertions, 7 deletions
diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c
index 4430fa695b48..6d3f91631de6 100644
--- a/kernel/time/tick-broadcast.c
+++ b/kernel/time/tick-broadcast.c
@@ -583,6 +583,12 @@ again:
}
}
+ /*
+ * Remove the current cpu from the pending mask. The event is
+ * delivered immediately in tick_do_broadcast() !
+ */
+ cpumask_clear_cpu(smp_processor_id(), tick_broadcast_pending_mask);
+
/* Take care of enforced broadcast requests */
cpumask_or(tmpmask, tmpmask, tick_broadcast_force_mask);
cpumask_clear(tick_broadcast_force_mask);
@@ -654,8 +660,8 @@ void tick_broadcast_oneshot_control(unsigned long reason)
raw_spin_lock_irqsave(&tick_broadcast_lock, flags);
if (reason == CLOCK_EVT_NOTIFY_BROADCAST_ENTER) {
- WARN_ON_ONCE(cpumask_test_cpu(cpu, tick_broadcast_pending_mask));
if (!cpumask_test_and_set_cpu(cpu, tick_broadcast_oneshot_mask)) {
+ WARN_ON_ONCE(cpumask_test_cpu(cpu, tick_broadcast_pending_mask));
clockevents_set_mode(dev, CLOCK_EVT_MODE_SHUTDOWN);
/*
* We only reprogram the broadcast timer if we
@@ -672,8 +678,6 @@ void tick_broadcast_oneshot_control(unsigned long reason)
} else {
if (cpumask_test_and_clear_cpu(cpu, tick_broadcast_oneshot_mask)) {
clockevents_set_mode(dev, CLOCK_EVT_MODE_ONESHOT);
- if (dev->next_event.tv64 == KTIME_MAX)
- goto out;
/*
* The cpu which was handling the broadcast
* timer marked this cpu in the broadcast
@@ -688,6 +692,11 @@ void tick_broadcast_oneshot_control(unsigned long reason)
goto out;
/*
+ * Bail out if there is no next event.
+ */
+ if (dev->next_event.tv64 == KTIME_MAX)
+ goto out;
+ /*
* If the pending bit is not set, then we are
* either the CPU handling the broadcast
* interrupt or we got woken by something else.
@@ -771,10 +780,6 @@ void tick_broadcast_setup_oneshot(struct clock_event_device *bc)
bc->event_handler = tick_handle_oneshot_broadcast;
- /* Take the do_timer update */
- if (!tick_nohz_full_cpu(cpu))
- tick_do_timer_cpu = cpu;
-
/*
* We must be careful here. There might be other CPUs
* waiting for periodic broadcast. We need to set the