diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 6e371f43fc80..6df80d47a525 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -2878,7 +2878,9 @@ static inline u64 cfs_rq_clock_task(struct cfs_rq *cfs_rq); static inline int update_cfs_rq_load_avg(u64 now, struct cfs_rq *cfs_rq) { struct sched_avg *sa = &cfs_rq->avg; + struct rq *rq = rq_of(cfs_rq); int decayed, removed = 0; + int cpu = cpu_of(rq); if (atomic_long_read(&cfs_rq->removed_load_avg)) { s64 r = atomic_long_xchg(&cfs_rq->removed_load_avg, 0); @@ -2893,7 +2895,7 @@ static inline int update_cfs_rq_load_avg(u64 now, struct cfs_rq *cfs_rq) sa->util_sum = max_t(s32, sa->util_sum - r * LOAD_AVG_MAX, 0); } - decayed = __update_load_avg(now, cpu_of(rq_of(cfs_rq)), sa, + decayed = __update_load_avg(now, cpu, sa, scale_load_down(cfs_rq->load.weight), cfs_rq->curr != NULL, cfs_rq); #ifndef CONFIG_64BIT @@ -2901,6 +2903,29 @@ static inline int update_cfs_rq_load_avg(u64 now, struct cfs_rq *cfs_rq) cfs_rq->load_last_update_time_copy = sa->last_update_time; #endif + if (cpu == smp_processor_id() && &rq->cfs == cfs_rq) { + unsigned long max = rq->cpu_capacity_orig; + + /* + * There are a few boundary cases this might miss but it should + * get called often enough that that should (hopefully) not be + * a real problem -- added to that it only calls on the local + * CPU, so if we enqueue remotely we'll miss an update, but + * the next tick/schedule should update. + * + * It will not get called when we go idle, because the idle + * thread is a different class (!fair), nor will the utilization + * number include things like RT tasks. + * + * As is, the util number is not freq-invariant (we'd have to + * implement arch_scale_freq_capacity() for that). + * + * See cpu_util(). + */ + cpufreq_update_util(rq_clock(rq), + min(sa->util_avg, max), max); + } + return decayed || removed; } @@ -2922,29 +2947,6 @@ static inline void update_load_avg(struct sched_entity *se, int update_tg) if (update_cfs_rq_load_avg(now, cfs_rq) && update_tg) update_tg_load_avg(cfs_rq, 0); - - if (cpu == smp_processor_id() && &rq->cfs == cfs_rq) { - unsigned long max = rq->cpu_capacity_orig; - - /* - * There are a few boundary cases this might miss but it should - * get called often enough that that should (hopefully) not be - * a real problem -- added to that it only calls on the local - * CPU, so if we enqueue remotely we'll miss an update, but - * the next tick/schedule should update. - * - * It will not get called when we go idle, because the idle - * thread is a different class (!fair), nor will the utilization - * number include things like RT tasks. - * - * As is, the util number is not freq-invariant (we'd have to - * implement arch_scale_freq_capacity() for that). - * - * See cpu_util(). - */ - cpufreq_update_util(rq_clock(rq), - min(cfs_rq->avg.util_avg, max), max); - } } static void attach_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se)