linux/mm/memory.c

795 copy_nonpresent_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm,
815 						&src_mm->mmlist);
821 			set_pte_at(src_mm, addr, src_pte, pte);
843 			set_pte_at(src_mm, addr, src_pte, pte);
877 			set_pte_at(src_mm, addr, src_pte, pte);
956 	struct mm_struct *src_mm = src_vma->vm_mm;
960 		wrprotect_ptes(src_mm, addr, src_pte, nr);
1055 static inline struct folio *folio_prealloc(struct mm_struct *src_mm,
1068 	if (mem_cgroup_charge(new_folio, src_mm, GFP_KERNEL)) {
1083 	struct mm_struct *src_mm = src_vma->vm_mm;
1119 	src_pte = pte_offset_map_rw_nolock(src_mm, src_pmd, addr, &dummy_pmdval,
1150 			ret = copy_nonpresent_pte(dst_mm, src_mm,
1214 		prealloc = folio_prealloc(src_mm, src_vma, addr, false);
1238 	struct mm_struct *src_mm = src_vma->vm_mm;
1251 			err = copy_huge_pmd(dst_mm, src_mm, dst_pmd, src_pmd,
1274 	struct mm_struct *src_mm = src_vma->vm_mm;
1288 			err = copy_huge_pud(dst_mm, src_mm,
1368 	struct mm_struct *src_mm = src_vma->vm_mm;
1378 		return copy_hugetlb_page_range(dst_mm, src_mm, dst_vma, src_vma);
1390 					0, src_mm, addr, end);
1400 		raw_write_seqcount_begin(&src_mm->write_protect_seq);
1405 	src_pgd = pgd_offset(src_mm, addr);
1418 		raw_write_seqcount_end(&src_mm->write_protect_seq);