30 lines
826 B
Diff
30 lines
826 B
Diff
Subject: sched-disable-ttwu-queue.patch
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From: Thomas Gleixner <tglx@linutronix.de>
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Date: Tue, 13 Sep 2011 16:42:35 +0200
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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---
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kernel/sched_features.h | 4 ++++
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1 file changed, 4 insertions(+)
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Index: linux-3.2/kernel/sched_features.h
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===================================================================
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--- linux-3.2.orig/kernel/sched_features.h
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+++ linux-3.2/kernel/sched_features.h
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@@ -60,11 +60,15 @@ SCHED_FEAT(OWNER_SPIN, 1)
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*/
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SCHED_FEAT(NONTASK_POWER, 1)
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+#ifndef CONFIG_PREEMPT_RT_FULL
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/*
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* Queue remote wakeups on the target CPU and process them
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* using the scheduler IPI. Reduces rq->lock contention/bounces.
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*/
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SCHED_FEAT(TTWU_QUEUE, 1)
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+#else
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+SCHED_FEAT(TTWU_QUEUE, 0)
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+#endif
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SCHED_FEAT(FORCE_SD_OVERLAP, 0)
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SCHED_FEAT(RT_RUNTIME_SHARE, 1)
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