1 files changed, 7 insertions, 0 deletions

diff --git a/kernel/sched.c b/kernel/sched.c
index 34b7d721d735..35ef06c99214 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -365,6 +365,13 @@ struct root_domain {
         atomic_t refcount;
         cpumask_t span;
         cpumask_t online;
+
+        /*
+         * The "RT overload" flag: it gets set if a CPU has more than
+         * one runnable RT task.
+         */
+        cpumask_t rto_mask;
+        atomic_t  rto_count;
 };
 
 static struct root_domain def_root_domain;