linux-kernel - [PATCH 2/2] SCHED_TTWU_QUEUE is not longer needed since sparc32 now implements IPI

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Date:	Fri, 20 May 2011 16:01:10 +0200
From:	Daniel Hellstrom <daniel@...sler.com>
To:	davem@...emloft.net
Cc:	sparclinux@...r.kernel.org, sfr@...b.auug.org.au,
	peterz@...radead.org, tglx@...utronix.de, mingo@...e.hu,
	hpa@...or.com, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] SCHED_TTWU_QUEUE is not longer needed since sparc32 now implements IPI

Signed-off-by: Daniel Hellstrom <daniel@...sler.com>
Reported-by: Peter Zijlstra <peterz@...radead.org>
Acked-by: Peter Zijlstra <peterz@...radead.org>
---
 init/Kconfig   |    5 -----
 kernel/sched.c |    2 +-
 2 files changed, 1 insertions(+), 6 deletions(-)

diff --git a/init/Kconfig b/init/Kconfig
index df64627..a66b656 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -827,11 +827,6 @@ config SCHED_AUTOGROUP
 	  desktop applications.  Task group autogeneration is currently based
 	  upon task session.
 
-config SCHED_TTWU_QUEUE
-	bool
-	depends on !SPARC32
-	default y
-
 config MM_OWNER
 	bool
 
diff --git a/kernel/sched.c b/kernel/sched.c
index c62acf4..0516af4 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -2564,7 +2564,7 @@ static void ttwu_queue(struct task_struct *p, int cpu)
 {
 	struct rq *rq = cpu_rq(cpu);
 
-#if defined(CONFIG_SMP) && defined(CONFIG_SCHED_TTWU_QUEUE)
+#if defined(CONFIG_SMP)
 	if (sched_feat(TTWU_QUEUE) && cpu != smp_processor_id()) {
 		ttwu_queue_remote(p, cpu);
 		return;
-- 
1.6.0.3

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