Messages in this thread Patch in this message | | | From | Frederic Weisbecker <> | Subject | [PATCH 13/14] cpufreq: Use vtime aware kcpustat accessor to fetch CPUTIME_SYSTEM | Date | Wed, 16 Oct 2019 04:56:59 +0200 |
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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@redhat.com> Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Yauheni Kaliuta <yauheni.kaliuta@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Rik van Riel <riel@surriel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wanpeng Li <wanpengli@tencent.com> Cc: Ingo Molnar <mingo@kernel.org> --- drivers/cpufreq/cpufreq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index c52d6fa32aac..a37ebfd7e0e8 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -120,7 +120,7 @@ static inline u64 get_cpu_idle_time_jiffy(unsigned int cpu, u64 *wall) cur_wall_time = jiffies64_to_nsecs(get_jiffies_64()); busy_time = kcpustat_cpu(cpu).cpustat[CPUTIME_USER]; - busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_SYSTEM]; + busy_time += kcpustat_field(&kcpustat_cpu(cpu), CPUTIME_SYSTEM, cpu); busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_IRQ]; busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_SOFTIRQ]; busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_STEAL]; -- 2.23.0
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