334 static inline void set_pte(pte_t *ptep, pte_t pteval)  in set_pte()  argument
341 	    (!pte_present(*ptep) ||  in set_pte()
342 		pte_pfn(*ptep) != pte_pfn(pteval)))  in set_pte()
345 	*ptep = pteval;  in set_pte()
348 #define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)  argument
416 ptep_test_and_clear_young (struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)  in ptep_test_and_clear_young()  argument
419 	if (!pte_young(*ptep))  in ptep_test_and_clear_young()
421 	return test_and_clear_bit(_PAGE_A_BIT, ptep);  in ptep_test_and_clear_young()
423 	pte_t pte = *ptep;  in ptep_test_and_clear_young()
426 	set_pte_at(vma->vm_mm, addr, ptep, pte_mkold(pte));  in ptep_test_and_clear_young()
432 ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)  in ptep_get_and_clear()  argument
435 	return __pte(xchg((long *) ptep, 0));  in ptep_get_and_clear()
437 	pte_t pte = *ptep;  in ptep_get_and_clear()
438 	pte_clear(mm, addr, ptep);  in ptep_get_and_clear()
444 ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)  in ptep_set_wrprotect()  argument
450 		old = pte_val(*ptep);  in ptep_set_wrprotect()
452 	} while (cmpxchg((unsigned long *) ptep, old, new) != old);  in ptep_set_wrprotect()
454 	pte_t old_pte = *ptep;  in ptep_set_wrprotect()
455 	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));  in ptep_set_wrprotect()