pte_lockptr       929 include/linux/mm.h #define pte_lockptr(mm, pmd)	({(void)(mm); __pte_lockptr(pmd_page(*(pmd)));})
pte_lockptr       936 include/linux/mm.h #define pte_lockptr(mm, pmd)	({(void)(pmd); &(mm)->page_table_lock;})