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sched: Remove FAIR_SLEEPERS feature

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Our preemption model relies too heavily on sleeper fairness to disable it
without dire consequences.  Remove the feature, and save a branch or two.

Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1268301520.6785.40.camel@marge.simson.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Mike Galbraith
2010-03-11 17:17:17 +01:00
committed by Ingo Molnar
parent 6bc6cf2b61
commit 5ca9880c6f
2 changed files with 1 additions and 8 deletions
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2
kernel/sched_fair.c
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@@ -738,7 +738,7 @@ place_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int initial)
vruntime += sched_vslice(cfs_rq, se);
/* sleeps up to a single latency don't count. */
if (!initial && sched_feat(FAIR_SLEEPERS)) {
if (!initial) {
unsigned long thresh = sysctl_sched_latency;
/*