From: Konstantin Khorenko <khore...@virtuozzo.com>
Signed-off-by: Konstantin Khorenko <khore...@virtuozzo.com>
Reviewed-by: Andrey Ryabinin <aryabi...@virtuozzo.com>
(cherry-picked from vz8 commit 0e0747f3318b ("sched: Fix task_group
"iowait_sum" statistic accounting"))
Signed-off-by: Nikita Yushchenko <nikita.yushche...@virtuozzo.com>
---
kernel/sched/fair.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 556bd109049a..c0bf49db868d 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1051,7 +1051,8 @@ update_stats_enqueue_sleeper(struct cfs_rq *cfs_rq,
struct sched_entity *se)
delta >> 20);
}
account_scheduler_latency(tsk, delta >> 10, 0);
- }
+ } else
+ __schedstat_add(se->statistics.iowait_sum, delta);
}
}
--
2.30.2
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