diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c index f3c02a5fbb41b02be8b23600f9507eb1e60f68f0..07dd76ad73113b5d8081447bcbc18795466b768d 100644 --- a/kernel/sched/rt.c +++ b/kernel/sched/rt.c @@ -1780,6 +1780,16 @@ static struct rq *find_lock_lowest_rq(struct task_struct *task, struct rq *rq) lowest_rq = cpu_rq(cpu); + if (lowest_rq->rt.highest_prio.curr <= task->prio) { + /* + * Target rq has tasks of equal or higher priority, + * retrying does not release any lock and is unlikely + * to yield a different result. + */ + lowest_rq = NULL; + break; + } + /* if the prio of this runqueue changed, try again */ if (double_lock_balance(rq, lowest_rq)) { /*