linux-kernel - [PATCH] sched: Fix compiler errors for NO

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Message-Id: <1432324094-29573-1-git-send-email-abelvesa@gmail.com>
Date:	Fri, 22 May 2015 22:48:14 +0300
From:	Abel Vesa <abelvesa@...il.com>
To:	morten.rasmussen@....com, peterz@...radead.org, mingo@...hat.com
Cc:	vincent.guittot@...aro.org, Dietmar.Eggemann@....com,
	yuyang.du@...el.com, preeti@...ux.vnet.ibm.com,
	mturquette@...aro.org, rjw@...ysocki.net, Juri.Lelli@....com,
	sgurrappadi@...dia.com, pang.xunlei@....com.cn,
	linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
	Abel Vesa <abelvesa@...il.com>
Subject: [PATCH] sched: Fix compiler errors for NO_SMP machines

Trivial fixes forh machines without SMP.

Signed-off-by: Abel Vesa <abelvesa@...il.com>
---
 kernel/sched/fair.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index e6d32e6..dae3db7 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -672,6 +672,8 @@ static unsigned long task_h_load(struct task_struct *p);
 static inline void __update_task_entity_contrib(struct sched_entity *se);
 static inline void __update_task_entity_utilization(struct sched_entity *se);
 
+static bool cpu_overutilized(int cpu);
+
 /* Give new task start runnable values to heavy its load in infant time */
 void init_task_runnable_average(struct task_struct *p)
 {
@@ -4266,8 +4268,6 @@ static inline void hrtick_update(struct rq *rq)
 }
 #endif
 
-static bool cpu_overutilized(int cpu);
-
 /*
  * The enqueue_task method is called before nr_running is
  * increased. Here we update the fair scheduling stats and
@@ -4278,7 +4278,6 @@ enqueue_task_fair(struct rq *rq, struct task_struct *p, int flags)
 {
 	struct cfs_rq *cfs_rq;
 	struct sched_entity *se = &p->se;
-	int task_new = !(flags & ENQUEUE_WAKEUP);
 
 	for_each_sched_entity(se) {
 		if (se->on_rq)
@@ -4313,10 +4312,13 @@ enqueue_task_fair(struct rq *rq, struct task_struct *p, int flags)
 	if (!se) {
 		update_rq_runnable_avg(rq, rq->nr_running);
 		add_nr_running(rq, 1);
-		if (!task_new && !rq->rd->overutilized &&
+#ifdef CONFIG_SMP
+		if ((flags & ENQUEUE_WAKEUP) && !rq->rd->overutilized &&
 		    cpu_overutilized(rq->cpu))
 			rq->rd->overutilized = true;
+#endif
 	}
+
 	hrtick_update(rq);
 }
 
@@ -8497,8 +8499,10 @@ static void task_tick_fair(struct rq *rq, struct task_struct *curr, int queued)
 
 	update_rq_runnable_avg(rq, 1);
 
+#ifdef CONFIG_SMP
 	if (!rq->rd->overutilized && cpu_overutilized(task_cpu(curr)))
 		rq->rd->overutilized = true;
+#endif
 }
 
 /*
-- 
1.9.1

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