linux-kernel - [PATCH v2 08/11] sched: remove weighted

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Date:	Mon, 17 Feb 2014 09:55:14 +0800
From:	Alex Shi <alex.shi@...aro.org>
To:	mingo@...hat.com, peterz@...radead.org, morten.rasmussen@....com
Cc:	vincent.guittot@...aro.org, daniel.lezcano@...aro.org,
	fweisbec@...il.com, linux@....linux.org.uk, tony.luck@...el.com,
	fenghua.yu@...el.com, james.hogan@...tec.com, alex.shi@...aro.org,
	jason.low2@...com, viresh.kumar@...aro.org, hanjun.guo@...aro.org,
	linux-kernel@...r.kernel.org, tglx@...utronix.de,
	akpm@...ux-foundation.org, arjan@...ux.intel.com, pjt@...gle.com,
	fengguang.wu@...el.com, linaro-kernel@...ts.linaro.org,
	wangyun@...ux.vnet.ibm.com
Subject: [PATCH v2 08/11] sched: remove weighted_load()

Although weighted_load is a inline founction, it's not needed in fact.
so remove it.

Signed-off-by: Alex Shi <alex.shi@...aro.org>
---
 kernel/sched/fair.c | 23 ++++-------------------
 1 file changed, 4 insertions(+), 19 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 5cdc838..6c37ee1 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3939,31 +3939,16 @@ static void dequeue_task_fair(struct rq *rq, struct task_struct *p, int flags)
 }
 
 #ifdef CONFIG_SMP
-/* Used instead of source_load when we know the type == 0 */
-static inline unsigned long weighted_cpuload(const int cpu)
-{
-	return cpu_rq(cpu)->cfs.runnable_load_avg;
-}
-
-/*
- * Return a low guess at the load of a migration-source cpu weighted
- * according to the scheduling class and "nice" value.
- *
- * We want to under-estimate the load of migration sources, to
- * balance conservatively.
- */
+/* Return the real load of 'cpu' */
 static unsigned long source_load(int cpu)
 {
-	return weighted_cpuload(cpu);
+	return cpu_rq(cpu)->cfs.runnable_load_avg;
 }
 
-/*
- * Return a high guess at the load of a migration-target cpu weighted
- * according to the scheduling class and "nice" value.
- */
+/* Return a high bias at the load of a migration-target cpu weighted */
 static unsigned long target_load(int cpu, int imbalance_pct)
 {
-	unsigned long total = weighted_cpuload(cpu);
+	unsigned long total = cpu_rq(cpu)->cfs.runnable_load_avg;
 
 	if (!sched_feat(LB_BIAS))
 		return total;
-- 
1.8.1.2

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