sched: Remove NORMALIZED_SLEEPER
This feature hasn't been enabled in a long time, remove effectively dead code.
Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1268301447.6785.38.camel@marge.simson.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 0008cc4..de98e2e 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -742,16 +742,6 @@
unsigned long thresh = sysctl_sched_latency;
/*
- * Convert the sleeper threshold into virtual time.
- * SCHED_IDLE is a special sub-class. We care about
- * fairness only relative to other SCHED_IDLE tasks,
- * all of which have the same weight.
- */
- if (sched_feat(NORMALIZED_SLEEPER) && (!entity_is_task(se) ||
- task_of(se)->policy != SCHED_IDLE))
- thresh = calc_delta_fair(thresh, se);
-
- /*
* Halve their sleep time's effect, to allow
* for a gentler effect of sleepers:
*/
diff --git a/kernel/sched_features.h b/kernel/sched_features.h
index c545e04..4042883 100644
--- a/kernel/sched_features.h
+++ b/kernel/sched_features.h
@@ -13,13 +13,6 @@
SCHED_FEAT(GENTLE_FAIR_SLEEPERS, 1)
/*
- * By not normalizing the sleep time, heavy tasks get an effective
- * longer period, and lighter task an effective shorter period they
- * are considered running.
- */
-SCHED_FEAT(NORMALIZED_SLEEPER, 0)
-
-/*
* Place new tasks ahead so that they do not starve already running
* tasks
*/