From: Paul Turner <pjt@google.com>
Date: Tue, 8 Nov 2011 04:26:34 +0000 (-0800)
Subject: sched: Fix buglet in return_cfs_rq_runtime()
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=fccfdc6f0d8c83c854eeb6d93aa158f0e551bd49;p=deliverable%2Flinux.git

sched: Fix buglet in return_cfs_rq_runtime()

In return_cfs_rq_runtime() we want to return bandwidth when there are no
remaining tasks, not "return" when this is the case.

Signed-off-by: Paul Turner <pjt@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20111108042736.623812423@google.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index ba0e1f49a22f..a78ed2736ba7 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -1756,7 +1756,7 @@ static void __return_cfs_rq_runtime(struct cfs_rq *cfs_rq)
 
 static __always_inline void return_cfs_rq_runtime(struct cfs_rq *cfs_rq)
 {
-	if (!cfs_rq->runtime_enabled || !cfs_rq->nr_running)
+	if (!cfs_rq->runtime_enabled || cfs_rq->nr_running)
 		return;
 
 	__return_cfs_rq_runtime(cfs_rq);