1472 	spinlock_t *pml = NULL, *ptl;  in collapse_pte_mapped_thp()  local
1578 		pml = pmd_lock(mm, pmd);  in collapse_pte_mapped_thp()
1583 	if (!pml)  in collapse_pte_mapped_thp()
1585 	else if (ptl != pml)  in collapse_pte_mapped_thp()
1621 	if (!pml)  in collapse_pte_mapped_thp()
1631 	if (!pml) {  in collapse_pte_mapped_thp()
1632 		pml = pmd_lock(mm, pmd);  in collapse_pte_mapped_thp()
1633 		if (ptl != pml)  in collapse_pte_mapped_thp()
1638 	if (ptl != pml)  in collapse_pte_mapped_thp()
1640 	spin_unlock(pml);  in collapse_pte_mapped_thp()
1662 	if (pml && pml != ptl)  in collapse_pte_mapped_thp()
1663 		spin_unlock(pml);  in collapse_pte_mapped_thp()
1682 		spinlock_t *pml;  in retract_page_tables()  local
1720 		pml = pmd_lock(mm, pmd);  in retract_page_tables()
1722 		if (ptl != pml)  in retract_page_tables()
1741 		if (ptl != pml)  in retract_page_tables()
1743 		spin_unlock(pml);  in retract_page_tables()