1 files changed, 1 insertions, 1 deletions

diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index e4ffa565a69f..690c0307afed 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -1195,7 +1195,7 @@ static inline pmd_t pmdp_establish(struct vm_area_struct *vma,
                 return xchg(pmdp, pmd);
         } else {
                 pmd_t old = *pmdp;
-                *pmdp = pmd;
+                WRITE_ONCE(*pmdp, pmd);
                 return old;
         }
 }