1 files changed, 1 insertions, 1 deletions

diff --git a/mm/swap.c b/mm/swap.c
index b0f529b38979..fff1ff7fb9ad 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -659,7 +659,7 @@ void lru_add_page_tail(struct zone* zone,
         VM_BUG_ON(!PageHead(page));
         VM_BUG_ON(PageCompound(page_tail));
         VM_BUG_ON(PageLRU(page_tail));
-        VM_BUG_ON(!spin_is_locked(&zone->lru_lock));
+        VM_BUG_ON(NR_CPUS != 1 && !spin_is_locked(&zone->lru_lock));
 
         SetPageLRU(page_tail);