diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 1d1fe9361d29..89d4ed08afba 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -1979,7 +1979,9 @@ static int cpuset_css_online(struct cgroup_subsys_state *css)
 
 	spin_lock_irq(&callback_lock);
 	cs->mems_allowed = parent->mems_allowed;
+	cs->effective_mems = parent->mems_allowed;
 	cpumask_copy(cs->cpus_allowed, parent->cpus_allowed);
+	cpumask_copy(cs->effective_cpus, parent->cpus_allowed);
 	spin_unlock_irq(&callback_lock);
 out_unlock:
 	mutex_unlock(&cpuset_mutex);