In order to make sure Energy Aware Scheduling (EAS) doesn't hurt systems not using it, add a new sched_feat, called ENERGY_AWARE, guarding the access to EAS code paths.
Signed-off-by: Quentin Perret <[email protected]> --- kernel/sched/features.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/kernel/sched/features.h b/kernel/sched/features.h index 85ae8488039c..26ff6752e492 100644 --- a/kernel/sched/features.h +++ b/kernel/sched/features.h @@ -90,3 +90,10 @@ SCHED_FEAT(WA_BIAS, true) * UtilEstimation. Use estimated CPU utilization. */ SCHED_FEAT(UTIL_EST, true) + +/* + * Energy-Aware Scheduling. Whether or not tasks will be placed into an + * energy-aware fashion depends on this feature being enabled and on the + * root domain having an Energy Model attached. + */ +SCHED_FEAT(ENERGY_AWARE, false) -- 2.18.0
