1 files changed, 2 insertions, 0 deletions

diff --git a/mm/slub.c b/mm/slub.c
index 2d0e610d195a..b21fd24b08b1 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -338,11 +338,13 @@ static inline int oo_objects(struct kmem_cache_order_objects x)
  */
 static __always_inline void slab_lock(struct page *page)
 {
+        VM_BUG_ON_PAGE(PageTail(page), page);
         bit_spin_lock(PG_locked, &page->flags);
 }
 
 static __always_inline void slab_unlock(struct page *page)
 {
+        VM_BUG_ON_PAGE(PageTail(page), page);
         __bit_spin_unlock(PG_locked, &page->flags);
 }