diff --git a/mm/swap.c b/mm/swap.c
index 955930f41d20..32bc97b73831 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -933,6 +933,7 @@ void lru_add_drain_all(void)
 #endif /* CONFIG_SMP */
 
 atomic_t lru_disable_count = ATOMIC_INIT(0);
+EXPORT_SYMBOL_GPL(lru_disable_count);
 
 /*
  * lru_cache_disable() needs to be called before we start compiling
@@ -944,7 +945,12 @@ atomic_t lru_disable_count = ATOMIC_INIT(0);
  */
 void lru_cache_disable(void)
 {
-	atomic_inc(&lru_disable_count);
+	/*
+	 * If someone is already disabled lru_cache, just return with
+	 * increasing the lru_disable_count.
+	 */
+	if (atomic_inc_not_zero(&lru_disable_count))
+		return;
 	/*
 	 * Readers of lru_disable_count are protected by either disabling
 	 * preemption or rcu_read_lock:
@@ -964,7 +970,9 @@ void lru_cache_disable(void)
 #else
 	lru_add_and_bh_lrus_drain();
 #endif
+	atomic_inc(&lru_disable_count);
 }
+EXPORT_SYMBOL_GPL(lru_cache_disable);
 
 /**
  * release_pages - batched put_page()