786 		pte_t *dst_pte, pte_t *src_pte, struct vm_area_struct *dst_vma,  in copy_nonpresent_pte()  argument
789 	unsigned long vm_flags = dst_vma->vm_flags;  in copy_nonpresent_pte()
882 		WARN_ON_ONCE(!userfaultfd_wp(dst_vma));  in copy_nonpresent_pte()
886 	if (!userfaultfd_wp(dst_vma))  in copy_nonpresent_pte()
905 copy_present_page(struct vm_area_struct *dst_vma, struct vm_area_struct *src_vma,  in copy_present_page()  argument
923 	page_add_new_anon_rmap(new_page, dst_vma, addr);  in copy_present_page()
924 	lru_cache_add_inactive_or_unevictable(new_page, dst_vma);  in copy_present_page()
928 	pte = mk_pte(new_page, dst_vma->vm_page_prot);  in copy_present_page()
929 	pte = maybe_mkwrite(pte_mkdirty(pte), dst_vma);  in copy_present_page()
930 	if (userfaultfd_pte_wp(dst_vma, *src_pte))  in copy_present_page()
933 	set_pte_at(dst_vma->vm_mm, addr, dst_pte, pte);  in copy_present_page()
942 copy_present_pte(struct vm_area_struct *dst_vma, struct vm_area_struct *src_vma,  in copy_present_pte()  argument
963 			return copy_present_page(dst_vma, src_vma, dst_pte, src_pte,  in copy_present_pte()
991 	if (!userfaultfd_wp(dst_vma))  in copy_present_pte()
994 	set_pte_at(dst_vma->vm_mm, addr, dst_pte, pte);  in copy_present_pte()
1018 copy_pte_range(struct vm_area_struct *dst_vma, struct vm_area_struct *src_vma,  in copy_pte_range()  argument
1022 	struct mm_struct *dst_mm = dst_vma->vm_mm;  in copy_pte_range()
1066 						  dst_vma, src_vma,  in copy_pte_range()
1085 		ret = copy_present_pte(dst_vma, src_vma, dst_pte, src_pte,  in copy_pte_range()
1142 copy_pmd_range(struct vm_area_struct *dst_vma, struct vm_area_struct *src_vma,  in copy_pmd_range()  argument
1146 	struct mm_struct *dst_mm = dst_vma->vm_mm;  in copy_pmd_range()
1162 					    addr, dst_vma, src_vma);  in copy_pmd_range()
1171 		if (copy_pte_range(dst_vma, src_vma, dst_pmd, src_pmd,  in copy_pmd_range()
1179 copy_pud_range(struct vm_area_struct *dst_vma, struct vm_area_struct *src_vma,  in copy_pud_range()  argument
1183 	struct mm_struct *dst_mm = dst_vma->vm_mm;  in copy_pud_range()
1208 		if (copy_pmd_range(dst_vma, src_vma, dst_pud, src_pud,  in copy_pud_range()
1216 copy_p4d_range(struct vm_area_struct *dst_vma, struct vm_area_struct *src_vma,  in copy_p4d_range()  argument
1220 	struct mm_struct *dst_mm = dst_vma->vm_mm;  in copy_p4d_range()
1232 		if (copy_pud_range(dst_vma, src_vma, dst_p4d, src_p4d,  in copy_p4d_range()
1245 vma_needs_copy(struct vm_area_struct *dst_vma, struct vm_area_struct *src_vma)  in vma_needs_copy()  argument
1253 	if (userfaultfd_wp(dst_vma))  in vma_needs_copy()
1272 copy_page_range(struct vm_area_struct *dst_vma, struct vm_area_struct *src_vma)  in copy_page_range()  argument
1278 	struct mm_struct *dst_mm = dst_vma->vm_mm;  in copy_page_range()
1284 	if (!vma_needs_copy(dst_vma, src_vma))  in copy_page_range()
1288 		return copy_hugetlb_page_range(dst_mm, src_mm, dst_vma, src_vma);  in copy_page_range()
1330 		if (unlikely(copy_p4d_range(dst_vma, src_vma, dst_pgd, src_pgd,  in copy_page_range()