diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index cdcd25c..eff3de3 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1426,11 +1426,12 @@
 
 bool move_huge_pmd(struct vm_area_struct *vma, unsigned long old_addr,
 		  unsigned long new_addr, unsigned long old_end,
-		  pmd_t *old_pmd, pmd_t *new_pmd)
+		  pmd_t *old_pmd, pmd_t *new_pmd, bool *need_flush)
 {
 	spinlock_t *old_ptl, *new_ptl;
 	pmd_t pmd;
 	struct mm_struct *mm = vma->vm_mm;
+	bool force_flush = false;
 
 	if ((old_addr & ~HPAGE_PMD_MASK) ||
 	    (new_addr & ~HPAGE_PMD_MASK) ||
@@ -1455,6 +1456,8 @@
 		new_ptl = pmd_lockptr(mm, new_pmd);
 		if (new_ptl != old_ptl)
 			spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
+		if (pmd_present(*old_pmd) && pmd_dirty(*old_pmd))
+			force_flush = true;
 		pmd = pmdp_huge_get_and_clear(mm, old_addr, old_pmd);
 		VM_BUG_ON(!pmd_none(*new_pmd));
 
@@ -1467,6 +1470,10 @@
 		set_pmd_at(mm, new_addr, new_pmd, pmd_mksoft_dirty(pmd));
 		if (new_ptl != old_ptl)
 			spin_unlock(new_ptl);
+		if (force_flush)
+			flush_tlb_range(vma, old_addr, old_addr + PMD_SIZE);
+		else
+			*need_flush = true;
 		spin_unlock(old_ptl);
 		return true;
 	}