1 files changed, 7 insertions, 0 deletions

diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index d3d1cccb3d7b..50735bb96149 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -934,6 +934,13 @@ static int find_lowest_rq(struct task_struct *task)
                 return -1; /* No targets found */
 
         /*
+         * Only consider CPUs that are usable for migration.
+         * I guess we might want to change cpupri_find() to ignore those
+         * in the first place.
+         */
+        cpus_and(*lowest_mask, *lowest_mask, cpu_active_map);
+
+        /*
          * At this point we have built a mask of cpus representing the
          * lowest priority tasks in the system.  Now we want to elect
          * the best one based on our affinity and topology.