diff options
| author |   Frederic Weisbecker <frederic@kernel.org> | 2019-10-16 04:56:59 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2019-10-29 10:01:18 +0100 |
| commit | 49bb001e246d3a44692f8418c8e38d9ef4aa405f (patch) | |
| tree | 8a69b6ed0caa44aecc089278a5e441e122f3ac4a /drivers | |
| parent | procfs: Use vtime aware kcpustat accessor to fetch CPUTIME_SYSTEM (diff) | |
| download | linux-dev-49bb001e246d3a44692f8418c8e38d9ef4aa405f.tar.xz linux-dev-49bb001e246d3a44692f8418c8e38d9ef4aa405f.zip | |
cpufreq: 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@redhat.com>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rafael J . Wysocki <rjw@rjwysocki.net>
Cc: Rik van Riel <riel@surriel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Wanpeng Li <wanpengli@tencent.com>
Link: https://lkml.kernel.org/r/20191016025700.31277-14-frederic@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 2 |
1 files changed, 1 insertions, 1 deletions
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]; |