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authorPeter Zijlstra <peterz@infradead.org>2023-01-12 22:43:30 +0300
committerIngo Molnar <mingo@kernel.org>2023-01-13 13:48:15 +0300
commit00717eb8c9557b5fcdd338db6faef532f6991d63 (patch)
tree7d92306275ea0227ea80667bfcece81733744805 /drivers/cpuidle
parent8ce78470bf2dd1d08107736e813fa62e09aa4647 (diff)
downloadlinux-00717eb8c9557b5fcdd338db6faef532f6991d63.tar.xz
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
Diffstat (limited to 'drivers/cpuidle')
-rw-r--r--drivers/cpuidle/poll_state.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/cpuidle/poll_state.c b/drivers/cpuidle/poll_state.c
index 1f578ed09c73..d25ec52846e6 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;
}