diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 894a24d5ec55..81fa83133c2c 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2178,8 +2178,9 @@ static void drain_local_stock(struct work_struct *dummy)
 	unsigned long flags;
 
 	/*
-	 * The only protection from memory hotplug vs. drain_stock races is
-	 * that we always operate on local CPU stock here with IRQ disabled
+	 * The only protection from cpu hotplug (memcg_hotplug_cpu_dead) vs.
+	 * drain_stock races is that we always operate on local CPU stock
+	 * here with IRQ disabled
 	 */
 	local_irq_save(flags);