1 files changed, 3 insertions, 0 deletions

diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index 023b35502509..58a48444e5c9 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -1200,6 +1200,9 @@ select_task_rq_rt(struct task_struct *p, int sd_flag, int flags)
 
         cpu = task_cpu(p);
 
+        if (p->rt.nr_cpus_allowed == 1)
+                goto out;
+
         /* For anything but wake ups, just return the task_cpu */
         if (sd_flag != SD_BALANCE_WAKE && sd_flag != SD_BALANCE_FORK)
                 goto out;