diff mbox series

[v2,16/44] cpuidle: Annotate poll_idle()

Message ID 20220919101521.407822201@infradead.org
State Superseded
Headers show
Series cpuidle,rcu: Clean up the mess | expand

Commit Message

Peter Zijlstra Sept. 19, 2022, 9:59 a.m. UTC 
The __cpuidle functions will become a noinstr class, as such they need
explicit annotations.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpuidle/poll_state.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
diff mbox series

Patch

--- a/drivers/cpuidle/poll_state.c
+++ b/drivers/cpuidle/poll_state.c
@@ -13,7 +13,10 @@ 
 static int __cpuidle poll_idle(struct cpuidle_device *dev,
 			       struct cpuidle_driver *drv, int index)
 {
-	u64 time_start = local_clock();
+	u64 time_start;
+
+	instrumentation_begin();
+	time_start = local_clock();
 
 	dev->poll_time_limit = false;
 
@@ -39,6 +42,7 @@  static int __cpuidle poll_idle(struct cp
 	raw_local_irq_disable();
 
 	current_clr_polling();
+	instrumentation_end();
 
 	return index;
 }