The following commit has been merged into the sched/core branch of tip:
Commit-ID: 00717eb8c9557b5fcdd338db6faef532f6991d63
Gitweb: https://git.kernel.org/tip/00717eb8c9557b5fcdd338db6faef532f6991d63
Author: Peter Zijlstra <peterz@infradead.org>
AuthorDate: Thu, 12 Jan 2023 20:43:30 +01:00
Committer: Ingo Molnar <mingo@kernel.org>
CommitterDate: Fri, 13 Jan 2023 11:48:15 +01:00
cpuidle: Annotate poll_idle()
The __cpuidle functions will become a noinstr class, as such they need
explicit annotations.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230112195540.312601331@infradead.org
---
drivers/cpuidle/poll_state.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/cpuidle/poll_state.c b/drivers/cpuidle/poll_state.c
index 1f578ed..d25ec52 100644
--- 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 cpuidle_device *dev,
raw_local_irq_disable();
current_clr_polling();
+ instrumentation_end();
return index;
}