linux-kernel - [PATCH] cpufreq: schedutil: Update last_update from sugov_set_iowait

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Date:   Tue, 18 Jul 2017 10:24:32 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Rafael Wysocki <rjw@...ysocki.net>, Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>
Cc:     Viresh Kumar <viresh.kumar@...aro.org>, linux-pm@...r.kernel.org,
        Vincent Guittot <vincent.guittot@...aro.org>,
        joelaf@...gle.com, Juri Lelli <Juri.Lelli@....com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] cpufreq: schedutil: Update last_update from sugov_set_iowait_boost()

sg_cpu->last_update is always updated right after we call
sugov_set_iowait_boost() and its better to update it from that routine
itself. This makes it more readable.

Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
 kernel/sched/cpufreq_schedutil.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c
index 29a397067ffa..63557b9f36b6 100644
--- a/kernel/sched/cpufreq_schedutil.c
+++ b/kernel/sched/cpufreq_schedutil.c
@@ -177,6 +177,8 @@ static void sugov_set_iowait_boost(struct sugov_cpu *sg_cpu, u64 time,
 		if (delta_ns > TICK_NSEC)
 			sg_cpu->iowait_boost = 0;
 	}
+
+	sg_cpu->last_update = time;
 }
 
 static void sugov_iowait_boost(struct sugov_cpu *sg_cpu, unsigned long *util,
@@ -219,7 +221,6 @@ static void sugov_update_single(struct update_util_data *hook, u64 time,
 	bool busy;
 
 	sugov_set_iowait_boost(sg_cpu, time, flags);
-	sg_cpu->last_update = time;
 
 	if (!sugov_should_update_freq(sg_policy, time))
 		return;
@@ -299,7 +300,6 @@ static void sugov_update_shared(struct update_util_data *hook, u64 time,
 	sg_cpu->flags = flags;
 
 	sugov_set_iowait_boost(sg_cpu, time, flags);
-	sg_cpu->last_update = time;
 
 	if (sugov_should_update_freq(sg_policy, time)) {
 		if (flags & SCHED_CPUFREQ_RT_DL)
-- 
2.13.0.71.gd7076ec9c9cb