linux-kernel - [PATCH 5/6] sched: fair: Drop always true parameter of update_cfs_rq_load

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Message-Id: <2d28d295f3f591ede7e931462bce1bda5aaa4896.1495603536.git.viresh.kumar@linaro.org>
Date:   Wed, 24 May 2017 10:59:56 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>
Cc:     Viresh Kumar <viresh.kumar@...aro.org>,
        linaro-kernel@...ts.linaro.org, linux-kernel@...r.kernel.org,
        Vincent Guittot <vincent.guittot@...aro.org>
Subject: [PATCH 5/6] sched: fair: Drop always true parameter of update_cfs_rq_load_avg()

update_freq is always true and there is no need to pass it to
update_cfs_rq_load_avg(). Remove it.

Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
 kernel/sched/fair.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index e519f6c03fe9..89d61d09d083 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -806,7 +806,7 @@ void post_init_entity_util_avg(struct sched_entity *se)
 			/*
 			 * For !fair tasks do:
 			 *
-			update_cfs_rq_load_avg(now, cfs_rq, false);
+			update_cfs_rq_load_avg(now, cfs_rq);
 			attach_entity_load_avg(cfs_rq, se);
 			switched_from_fair(rq, p);
 			 *
@@ -3259,7 +3259,6 @@ static inline void set_tg_cfs_propagate(struct cfs_rq *cfs_rq) {}
  * update_cfs_rq_load_avg - update the cfs_rq's load/util averages
  * @now: current time, as per cfs_rq_clock_task()
  * @cfs_rq: cfs_rq to update
- * @update_freq: should we call cfs_rq_util_change() or will the call do so
  *
  * The cfs_rq avg is the direct sum of all its entities (blocked and runnable)
  * avg. The immediate corollary is that all (fair) tasks must be attached, see
@@ -3273,7 +3272,7 @@ static inline void set_tg_cfs_propagate(struct cfs_rq *cfs_rq) {}
  * call update_tg_load_avg() when this function returns true.
  */
 static inline int
-update_cfs_rq_load_avg(u64 now, struct cfs_rq *cfs_rq, bool update_freq)
+update_cfs_rq_load_avg(u64 now, struct cfs_rq *cfs_rq)
 {
 	struct sched_avg *sa = &cfs_rq->avg;
 	int decayed, removed_load = 0, removed_util = 0;
@@ -3301,7 +3300,7 @@ update_cfs_rq_load_avg(u64 now, struct cfs_rq *cfs_rq, bool update_freq)
 	cfs_rq->load_last_update_time_copy = sa->last_update_time;
 #endif
 
-	if (update_freq && (decayed || removed_util))
+	if (decayed || removed_util)
 		cfs_rq_util_change(cfs_rq);
 
 	return decayed || removed_load;
@@ -3329,7 +3328,7 @@ static inline void update_load_avg(struct sched_entity *se, int flags)
 	if (se->avg.last_update_time && !(flags & SKIP_AGE_LOAD))
 		__update_load_avg_se(now, cpu, cfs_rq, se);
 
-	decayed  = update_cfs_rq_load_avg(now, cfs_rq, true);
+	decayed  = update_cfs_rq_load_avg(now, cfs_rq);
 	decayed |= propagate_entity_load_avg(se);
 
 	if (decayed && (flags & UPDATE_TG))
@@ -3473,7 +3472,7 @@ static int idle_balance(struct rq *this_rq, struct rq_flags *rf);
 #else /* CONFIG_SMP */
 
 static inline int
-update_cfs_rq_load_avg(u64 now, struct cfs_rq *cfs_rq, bool update_freq)
+update_cfs_rq_load_avg(u64 now, struct cfs_rq *cfs_rq)
 {
 	return 0;
 }
@@ -6995,7 +6994,7 @@ static void update_blocked_averages(int cpu)
 		if (throttled_hierarchy(cfs_rq))
 			continue;
 
-		if (update_cfs_rq_load_avg(cfs_rq_clock_task(cfs_rq), cfs_rq, true))
+		if (update_cfs_rq_load_avg(cfs_rq_clock_task(cfs_rq), cfs_rq))
 			update_tg_load_avg(cfs_rq, 0);
 
 		/* Propagate pending load changes to the parent, if any: */
@@ -7068,7 +7067,7 @@ static inline void update_blocked_averages(int cpu)
 
 	rq_lock_irqsave(rq, &rf);
 	update_rq_clock(rq);
-	update_cfs_rq_load_avg(cfs_rq_clock_task(cfs_rq), cfs_rq, true);
+	update_cfs_rq_load_avg(cfs_rq_clock_task(cfs_rq), cfs_rq);
 	rq_unlock_irqrestore(rq, &rf);
 }
 
-- 
2.13.0.70.g6367777092d9