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Message-Id: <20191016025700.31277-15-frederic@kernel.org>
Date: Wed, 16 Oct 2019 04:57:00 +0200
From: Frederic Weisbecker <frederic@...nel.org>
To: LKML <linux-kernel@...r.kernel.org>
Cc: Frederic Weisbecker <frederic@...nel.org>,
Jacek Anaszewski <jacek.anaszewski@...il.com>,
Peter Zijlstra <peterz@...radead.org>,
Wanpeng Li <wanpengli@...cent.com>,
"Rafael J . Wysocki" <rjw@...ysocki.net>,
Rik van Riel <riel@...riel.com>,
Thomas Gleixner <tglx@...utronix.de>,
Yauheni Kaliuta <yauheni.kaliuta@...hat.com>,
Ingo Molnar <mingo@...nel.org>,
Viresh Kumar <viresh.kumar@...aro.org>,
Pavel Machek <pavel@....cz>
Subject: [PATCH 14/14] leds: Use vtime aware kcpustat accessor to fetch CPUTIME_SYSTEM
Now that we have a vtime safe kcpustat accessor for CPUTIME_SYSTEM, use
it to start fixing frozen kcpustat values on nohz_full CPUs.
Reported-by: Yauheni Kaliuta <yauheni.kaliuta@...hat.com>
Signed-off-by: Frederic Weisbecker <frederic@...nel.org>
Cc: Jacek Anaszewski <jacek.anaszewski@...il.com>
Cc: Pavel Machek <pavel@....cz>
Cc: Yauheni Kaliuta <yauheni.kaliuta@...hat.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Rik van Riel <riel@...riel.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Wanpeng Li <wanpengli@...cent.com>
Cc: Ingo Molnar <mingo@...nel.org>
---
drivers/leds/trigger/ledtrig-activity.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/leds/trigger/ledtrig-activity.c b/drivers/leds/trigger/ledtrig-activity.c
index 6a72b7e13719..ddfc5edd07c8 100644
--- a/drivers/leds/trigger/ledtrig-activity.c
+++ b/drivers/leds/trigger/ledtrig-activity.c
@@ -59,7 +59,7 @@ static void led_activity_function(struct timer_list *t)
for_each_possible_cpu(i) {
curr_used += kcpustat_cpu(i).cpustat[CPUTIME_USER]
+ kcpustat_cpu(i).cpustat[CPUTIME_NICE]
- + kcpustat_cpu(i).cpustat[CPUTIME_SYSTEM]
+ + kcpustat_field(&kcpustat_cpu(i), CPUTIME_SYSTEM, i)
+ kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ]
+ kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
cpus++;
--
2.23.0
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