38 		pte_t *pte, unsigned int flags)  in follow_pfn_pte()  argument
45 		pte_t entry = *pte;  in follow_pfn_pte()
51 		if (!pte_same(*pte, entry)) {  in follow_pfn_pte()
52 			set_pte_at(vma->vm_mm, address, pte, entry);  in follow_pfn_pte()
53 			update_mmu_cache(vma, address, pte);  in follow_pfn_pte()
67 	pte_t *ptep, pte;  in follow_page_pte()  local
74 	pte = *ptep;  in follow_page_pte()
75 	if (!pte_present(pte)) {  in follow_page_pte()
84 		if (pte_none(pte))  in follow_page_pte()
86 		entry = pte_to_swp_entry(pte);  in follow_page_pte()
93 	if ((flags & FOLL_NUMA) && pte_protnone(pte))  in follow_page_pte()
95 	if ((flags & FOLL_WRITE) && !pte_write(pte)) {  in follow_page_pte()
100 	page = vm_normal_page(vma, address, pte);  in follow_page_pte()
108 		if (is_zero_pfn(pte_pfn(pte))) {  in follow_page_pte()
109 			page = pte_page(pte);  in follow_page_pte()
123 		    !pte_dirty(pte) && !PageDirty(page))  in follow_page_pte()
159 	if (!pte_none(pte))  in follow_page_pte()
253 	pte_t *pte;  in get_gate_page()  local
270 	pte = pte_offset_map(pmd, address);  in get_gate_page()
271 	if (pte_none(*pte))  in get_gate_page()
276 	*page = vm_normal_page(*vma, address, *pte);  in get_gate_page()
278 		if ((gup_flags & FOLL_DUMP) || !is_zero_pfn(pte_pfn(*pte)))  in get_gate_page()
280 		*page = pte_page(*pte);  in get_gate_page()
286 	pte_unmap(pte);  in get_gate_page()
1068 		pte_t pte = READ_ONCE(*ptep);  in gup_pte_range()  local
1075 		if (!pte_present(pte) || pte_special(pte) ||  in gup_pte_range()
1076 			pte_protnone(pte) || (write && !pte_write(pte)))  in gup_pte_range()
1079 		VM_BUG_ON(!pfn_valid(pte_pfn(pte)));  in gup_pte_range()
1080 		page = pte_page(pte);  in gup_pte_range()
1085 		if (unlikely(pte_val(pte) != pte_val(*ptep))) {  in gup_pte_range()