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-rw-r--r--kernel/sched/fair.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index eb5a2572b4f8..b00f16700f9c 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -7193,6 +7193,11 @@ static bool dequeue_task_fair(struct rq *rq, struct task_struct *p, int flags)
return true;
}
+static inline unsigned int cfs_h_nr_delayed(struct rq *rq)
+{
+ return (rq->cfs.h_nr_queued - rq->cfs.h_nr_runnable);
+}
+
#ifdef CONFIG_SMP
/* Working cpumask for: sched_balance_rq(), sched_balance_newidle(). */
@@ -7354,8 +7359,12 @@ wake_affine_idle(int this_cpu, int prev_cpu, int sync)
if (available_idle_cpu(this_cpu) && cpus_share_cache(this_cpu, prev_cpu))
return available_idle_cpu(prev_cpu) ? prev_cpu : this_cpu;
- if (sync && cpu_rq(this_cpu)->nr_running == 1)
- return this_cpu;
+ if (sync) {
+ struct rq *rq = cpu_rq(this_cpu);
+
+ if ((rq->nr_running - cfs_h_nr_delayed(rq)) == 1)
+ return this_cpu;
+ }
if (available_idle_cpu(prev_cpu))
return prev_cpu;