===================================================================
@@ -4500,6 +4500,14 @@ enqueue_task_fair(struct rq *rq, struct
struct cfs_rq *cfs_rq;
struct sched_entity *se = &p->se;
+ /*
+ * If in_iowait is set, the code below may not trigger any cpufreq
+ * utilization updates, so do it here explicitly with the IOWAIT flag
+ * passed.
+ */
+ if (p->in_iowait)
+ cpufreq_update_this_cpu(rq, SCHED_CPUFREQ_IOWAIT);
+
for_each_sched_entity(se) {
if (se->on_rq)
break;
===================================================================
@@ -3471,6 +3471,7 @@ static inline unsigned long rlimit_max(u
#define SCHED_CPUFREQ_RT (1U << 0)
#define SCHED_CPUFREQ_DL (1U << 1)
+#define SCHED_CPUFREQ_IOWAIT (1U << 2)
#define SCHED_CPUFREQ_RT_DL (SCHED_CPUFREQ_RT | SCHED_CPUFREQ_DL)