diff options
| -rw-r--r-- | kernel/sched/fair.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 38462305bc39..600fdde1e7ac 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -10657,7 +10657,8 @@ static inline void update_sd_lb_stats(struct lb_env *env, struct sd_lb_stats *sd if (!env->sd->parent) { /* update overload indicator if we are at root domain */ - WRITE_ONCE(env->dst_rq->rd->overload, sg_status & SG_OVERLOAD); + if (READ_ONCE(env->dst_rq->rd->overload) != (sg_status & SG_OVERLOAD)) + WRITE_ONCE(env->dst_rq->rd->overload, sg_status & SG_OVERLOAD); /* Update over-utilization (tipping point, U >= 0) indicator */ set_rd_overutilized_status(env->dst_rq->rd, |