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-rw-r--r--kernel/sched/fair.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 75c58c77450a..ef5b66b110f8 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -2991,6 +2991,18 @@ ___update_load_avg(u64 now, int cpu, struct sched_avg *sa,
sa->last_update_time += delta << 10;
/*
+ * running is a subset of runnable (weight) so running can't be set if
+ * runnable is clear. But there are some corner cases where the current
+ * se has been already dequeued but cfs_rq->curr still points to it.
+ * This means that weight will be 0 but not running for a sched_entity
+ * but also for a cfs_rq if the latter becomes idle. As an example,
+ * this happens during idle_balance() which calls
+ * update_blocked_averages()
+ */
+ if (!weight)
+ running = 0;
+
+ /*
* Now we know we crossed measurement unit boundaries. The *_avg
* accrues by two steps:
*