135 		unsigned long old_addr, unsigned long old_end,  in move_ptes()  argument
143 	unsigned long len = old_end - old_addr;  in move_ptes()
170 	old_pte = pte_offset_map_lock(mm, old_pmd, old_addr, &old_ptl);  in move_ptes()
178 	for (; old_addr < old_end; old_pte++, old_addr += PAGE_SIZE,  in move_ptes()
183 		pte = ptep_get_and_clear(mm, old_addr, old_pte);  in move_ptes()
197 		pte = move_pte(pte, new_vma->vm_page_prot, old_addr, new_addr);  in move_ptes()
256 static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr,  in move_normal_pmd()  argument
315 	flush_tlb_range(vma, old_addr, old_addr + PMD_SIZE);  in move_normal_pmd()
325 		unsigned long old_addr, unsigned long new_addr, pmd_t *old_pmd,  in move_normal_pmd()  argument
333 static bool move_normal_pud(struct vm_area_struct *vma, unsigned long old_addr,  in move_normal_pud()  argument
373 	flush_tlb_range(vma, old_addr, old_addr + PUD_SIZE);  in move_normal_pud()
383 		unsigned long old_addr, unsigned long new_addr, pud_t *old_pud,  in move_normal_pud()  argument
391 static bool move_huge_pud(struct vm_area_struct *vma, unsigned long old_addr,  in move_huge_pud()  argument
423 	flush_pud_tlb_range(vma, old_addr, old_addr + HPAGE_PUD_SIZE);  in move_huge_pud()
431 static bool move_huge_pud(struct vm_area_struct *vma, unsigned long old_addr,  in move_huge_pud()  argument
453 			unsigned long old_addr, unsigned long old_end,  in get_extent()  argument
474 	next = (old_addr + size) & mask;  in get_extent()
476 	extent = next - old_addr;  in get_extent()
477 	if (extent > old_end - old_addr)  in get_extent()
478 		extent = old_end - old_addr;  in get_extent()
490 			unsigned long old_addr, unsigned long new_addr,  in move_pgt_entry()  argument
501 		moved = move_normal_pmd(vma, old_addr, new_addr, old_entry,  in move_pgt_entry()
505 		moved = move_normal_pud(vma, old_addr, new_addr, old_entry,  in move_pgt_entry()
510 			move_huge_pmd(vma, old_addr, new_addr, old_entry,  in move_pgt_entry()
515 			move_huge_pud(vma, old_addr, new_addr, old_entry,  in move_pgt_entry()
531 		unsigned long old_addr, struct vm_area_struct *new_vma,  in move_page_tables()  argument
543 	old_end = old_addr + len;  in move_page_tables()
544 	flush_cache_range(vma, old_addr, old_end);  in move_page_tables()
547 				old_addr, old_end);  in move_page_tables()
550 	for (; old_addr < old_end; old_addr += extent, new_addr += extent) {  in move_page_tables()
556 		extent = get_extent(NORMAL_PUD, old_addr, old_end, new_addr);  in move_page_tables()
558 		old_pud = get_old_pud(vma->vm_mm, old_addr);  in move_page_tables()
566 				move_pgt_entry(HPAGE_PUD, vma, old_addr, new_addr,  in move_page_tables()
573 			if (move_pgt_entry(NORMAL_PUD, vma, old_addr, new_addr,  in move_page_tables()
578 		extent = get_extent(NORMAL_PMD, old_addr, old_end, new_addr);  in move_page_tables()
579 		old_pmd = get_old_pmd(vma->vm_mm, old_addr);  in move_page_tables()
588 			    move_pgt_entry(HPAGE_PMD, vma, old_addr, new_addr,  in move_page_tables()
591 			split_huge_pmd(vma, old_pmd, old_addr);  in move_page_tables()
600 			if (move_pgt_entry(NORMAL_PMD, vma, old_addr, new_addr,  in move_page_tables()
607 		move_ptes(vma, old_pmd, old_addr, old_addr + extent, new_vma,  in move_page_tables()
613 	return len + old_addr - old_end;	/* how much done */  in move_page_tables()
617 		unsigned long old_addr, unsigned long old_len,  in move_vma()  argument
641 		if (vma->vm_start != old_addr)  in move_vma()
642 			err = vma->vm_ops->may_split(vma, old_addr);  in move_vma()
643 		if (!err && vma->vm_end != old_addr + old_len)  in move_vma()
644 			err = vma->vm_ops->may_split(vma, old_addr + old_len);  in move_vma()
656 	err = ksm_madvise(vma, old_addr, old_addr + old_len,  in move_vma()
666 	new_pgoff = vma->vm_pgoff + ((old_addr - vma->vm_start) >> PAGE_SHIFT);  in move_vma()
675 	moved_len = move_page_tables(vma, old_addr, new_vma, new_addr, old_len,  in move_vma()
689 		move_page_tables(new_vma, new_addr, vma, old_addr, moved_len,  in move_vma()
693 		old_addr = new_addr;  in move_vma()
703 		if (old_addr > vma->vm_start &&  in move_vma()
704 		    old_addr + old_len < vma->vm_end)  in move_vma()
733 		if (new_vma != vma && vma->vm_start == old_addr &&  in move_vma()
734 			vma->vm_end == (old_addr + old_len))  in move_vma()
742 	if (do_munmap(mm, old_addr, old_len, uf_unmap) < 0) {  in move_vma()