diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index e867ee4..ce6960b 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -4478,11 +4478,13 @@
 	struct stripe_head *sh;
 	raid5_conf_t *conf = mddev->private;
 	int handled;
+	struct blk_plug plug;
 
 	pr_debug("+++ raid5d active\n");
 
 	md_check_recovery(mddev);
 
+	blk_start_plug(&plug);
 	handled = 0;
 	spin_lock_irq(&conf->device_lock);
 	while (1) {
@@ -4525,6 +4527,7 @@
 	spin_unlock_irq(&conf->device_lock);
 
 	async_tx_issue_pending_all();
+	blk_finish_plug(&plug);
 
 	pr_debug("--- raid5d inactive\n");
 }