1 files changed, 2 insertions, 1 deletions
diff --git a/mm/rmap.c b/mm/rmap.c
index 45ba250..c5bc241 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -583,7 +583,8 @@ pmd_t *mm_find_pmd(struct mm_struct *mm, unsigned long address)
 	 * without holding anon_vma lock for write.  So when looking for a
 	 * genuine pmde (in which to find pte), test present and !THP together.
 	 */
-	pmde = ACCESS_ONCE(*pmd);
+	pmde = *pmd;
+	barrier();
 	if (!pmd_present(pmde) || pmd_trans_huge(pmde))
 		pmd = NULL;
 out: