diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 6e5d5a5..fd86b37 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -967,6 +967,7 @@
 		bio_list_merge(&conf->pending_bio_list, &plug->pending);
 		conf->pending_count += plug->pending_cnt;
 		spin_unlock_irq(&conf->device_lock);
+		wake_up(&conf->wait_barrier);
 		md_wakeup_thread(mddev->thread);
 		kfree(plug);
 		return;
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 61ed150..77b562d 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1119,6 +1119,7 @@
 		bio_list_merge(&conf->pending_bio_list, &plug->pending);
 		conf->pending_count += plug->pending_cnt;
 		spin_unlock_irq(&conf->device_lock);
+		wake_up(&conf->wait_barrier);
 		md_wakeup_thread(mddev->thread);
 		kfree(plug);
 		return;