1501 	spinlock_t *pml = NULL, *ptl;  in collapse_pte_mapped_thp()  local
1602 		pml = pmd_lock(mm, pmd);  in collapse_pte_mapped_thp()
1607 	if (!pml)  in collapse_pte_mapped_thp()
1609 	else if (ptl != pml)  in collapse_pte_mapped_thp()
1645 	if (!pml)  in collapse_pte_mapped_thp()
1655 	if (!pml) {  in collapse_pte_mapped_thp()
1656 		pml = pmd_lock(mm, pmd);  in collapse_pte_mapped_thp()
1657 		if (ptl != pml)  in collapse_pte_mapped_thp()
1662 	if (ptl != pml)  in collapse_pte_mapped_thp()
1664 	spin_unlock(pml);  in collapse_pte_mapped_thp()
1686 	if (pml && pml != ptl)  in collapse_pte_mapped_thp()
1687 		spin_unlock(pml);  in collapse_pte_mapped_thp()
1706 		spinlock_t *pml;  in retract_page_tables()  local
1744 		pml = pmd_lock(mm, pmd);  in retract_page_tables()
1746 		if (ptl != pml)  in retract_page_tables()
1765 		if (ptl != pml)  in retract_page_tables()
1767 		spin_unlock(pml);  in retract_page_tables()