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Subject[PATCH 12/14] procfs: Use vtime aware kcpustat accessor to fetch CPUTIME_SYSTEM
Date
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: 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>
---
fs/proc/stat.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index 80c305f206bb..5c6bd0ae3802 100644
--- a/fs/proc/stat.c
+++ b/fs/proc/stat.c
@@ -124,7 +124,7 @@ static int show_stat(struct seq_file *p, void *v)

user += kcs->cpustat[CPUTIME_USER];
nice += kcs->cpustat[CPUTIME_NICE];
- system += kcs->cpustat[CPUTIME_SYSTEM];
+ system += kcpustat_field(kcs, CPUTIME_SYSTEM, i);
idle += get_idle_time(kcs, i);
iowait += get_iowait_time(kcs, i);
irq += kcs->cpustat[CPUTIME_IRQ];
@@ -162,7 +162,7 @@ static int show_stat(struct seq_file *p, void *v)
/* Copy values here to work around gcc-2.95.3, gcc-2.96 */
user = kcs->cpustat[CPUTIME_USER];
nice = kcs->cpustat[CPUTIME_NICE];
- system = kcs->cpustat[CPUTIME_SYSTEM];
+ system = kcpustat_field(kcs, CPUTIME_SYSTEM, i);
idle = get_idle_time(kcs, i);
iowait = get_iowait_time(kcs, i);
irq = kcs->cpustat[CPUTIME_IRQ];
--
2.23.0
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