348 				     unsigned long start_pfn,  in find_smallest_section_pfn()  argument
351 	for (; start_pfn < end_pfn; start_pfn += PAGES_PER_SUBSECTION) {  in find_smallest_section_pfn()
352 		if (unlikely(!pfn_to_online_page(start_pfn)))  in find_smallest_section_pfn()
355 		if (unlikely(pfn_to_nid(start_pfn) != nid))  in find_smallest_section_pfn()
358 		if (zone != page_zone(pfn_to_page(start_pfn)))  in find_smallest_section_pfn()
361 		return start_pfn;  in find_smallest_section_pfn()
369 				    unsigned long start_pfn,  in find_biggest_section_pfn()  argument
376 	for (; pfn >= start_pfn; pfn -= PAGES_PER_SUBSECTION) {  in find_biggest_section_pfn()
392 static void shrink_zone_span(struct zone *zone, unsigned long start_pfn,  in shrink_zone_span()  argument
398 	if (zone->zone_start_pfn == start_pfn) {  in shrink_zone_span()
422 					       start_pfn);  in shrink_zone_span()
461 				      unsigned long start_pfn,  in remove_pfn_range_from_zone()  argument
464 	const unsigned long end_pfn = start_pfn + nr_pages;  in remove_pfn_range_from_zone()
469 	for (pfn = start_pfn; pfn < end_pfn; pfn += cur_nr_pages) {  in remove_pfn_range_from_zone()
489 	shrink_zone_span(zone, start_pfn, start_pfn + nr_pages);  in remove_pfn_range_from_zone()
593 static void online_pages_range(unsigned long start_pfn, unsigned long nr_pages)  in online_pages_range()  argument
595 	const unsigned long end_pfn = start_pfn + nr_pages;  in online_pages_range()
607 	for (pfn = start_pfn; pfn < end_pfn;) {  in online_pages_range()
615 	online_mem_sections(start_pfn, end_pfn);  in online_pages_range()
642 static void __meminit resize_zone_range(struct zone *zone, unsigned long start_pfn,  in resize_zone_range()  argument
647 	if (zone_is_empty(zone) || start_pfn < zone->zone_start_pfn)  in resize_zone_range()
648 		zone->zone_start_pfn = start_pfn;  in resize_zone_range()
650 	zone->spanned_pages = max(start_pfn + nr_pages, old_end_pfn) - zone->zone_start_pfn;  in resize_zone_range()
653 static void __meminit resize_pgdat_range(struct pglist_data *pgdat, unsigned long start_pfn,  in resize_pgdat_range()  argument
658 	if (!pgdat->node_spanned_pages || start_pfn < pgdat->node_start_pfn)  in resize_pgdat_range()
659 		pgdat->node_start_pfn = start_pfn;  in resize_pgdat_range()
661 	pgdat->node_spanned_pages = max(start_pfn + nr_pages, old_end_pfn) - pgdat->node_start_pfn;  in resize_pgdat_range()
687 void __ref move_pfn_range_to_zone(struct zone *zone, unsigned long start_pfn,  in move_pfn_range_to_zone()  argument
697 		init_currently_empty_zone(zone, start_pfn, nr_pages);  in move_pfn_range_to_zone()
698 	resize_zone_range(zone, start_pfn, nr_pages);  in move_pfn_range_to_zone()
699 	resize_pgdat_range(pgdat, start_pfn, nr_pages);  in move_pfn_range_to_zone()
708 		if (!IS_ALIGNED(start_pfn, PAGES_PER_SECTION))  in move_pfn_range_to_zone()
709 			section_taint_zone_device(start_pfn);  in move_pfn_range_to_zone()
710 		if (!IS_ALIGNED(start_pfn + nr_pages, PAGES_PER_SECTION))  in move_pfn_range_to_zone()
711 			section_taint_zone_device(start_pfn + nr_pages);  in move_pfn_range_to_zone()
720 	memmap_init_range(nr_pages, nid, zone_idx(zone), start_pfn, 0,  in move_pfn_range_to_zone()
834 static struct zone *default_kernel_zone_for_pfn(int nid, unsigned long start_pfn,  in default_kernel_zone_for_pfn()  argument
843 		if (zone_intersects(zone, start_pfn, nr_pages))  in default_kernel_zone_for_pfn()
961 static inline struct zone *default_zone_for_pfn(int nid, unsigned long start_pfn,  in default_zone_for_pfn()  argument
964 	struct zone *kernel_zone = default_kernel_zone_for_pfn(nid, start_pfn,  in default_zone_for_pfn()
967 	bool in_kernel = zone_intersects(kernel_zone, start_pfn, nr_pages);  in default_zone_for_pfn()
968 	bool in_movable = zone_intersects(movable_zone, start_pfn, nr_pages);  in default_zone_for_pfn()
986 		struct memory_group *group, unsigned long start_pfn,  in zone_for_pfn_range()  argument
990 		return default_kernel_zone_for_pfn(nid, start_pfn, nr_pages);  in zone_for_pfn_range()
996 		return auto_movable_zone_for_pfn(nid, group, start_pfn, nr_pages);  in zone_for_pfn_range()
998 	return default_zone_for_pfn(nid, start_pfn, nr_pages);  in zone_for_pfn_range()
1097 	arg.start_pfn = pfn;  in online_pages()
1624 do_migrate_range(unsigned long start_pfn, unsigned long end_pfn)  in do_migrate_range()  argument
1633 	for (pfn = start_pfn; pfn < end_pfn; pfn++) {  in do_migrate_range()
1781 static int count_system_ram_pages_cb(unsigned long start_pfn,  in count_system_ram_pages_cb()  argument
1790 int __ref offline_pages(unsigned long start_pfn, unsigned long nr_pages,  in offline_pages()  argument
1793 	const unsigned long end_pfn = start_pfn + nr_pages;  in offline_pages()
1808 	if (WARN_ON_ONCE(!nr_pages || !pageblock_aligned(start_pfn) ||  in offline_pages()
1809 			 !IS_ALIGNED(start_pfn + nr_pages, PAGES_PER_SECTION)))  in offline_pages()
1822 	walk_system_ram_range(start_pfn, nr_pages, &system_ram_pages,  in offline_pages()
1835 	if (WARN_ON_ONCE(page_zone(pfn_to_page(start_pfn)) != zone ||  in offline_pages()
1850 	ret = start_isolate_page_range(start_pfn, end_pfn,  in offline_pages()
1859 	arg.start_pfn = start_pfn;  in offline_pages()
1871 		pfn = start_pfn;  in offline_pages()
1901 		ret = dissolve_free_huge_pages(start_pfn, end_pfn);  in offline_pages()
1907 		ret = test_pages_isolated(start_pfn, end_pfn, MEMORY_OFFLINE);  in offline_pages()
1912 	__offline_isolated_pages(start_pfn, end_pfn);  in offline_pages()
1928 	adjust_managed_page_count(pfn_to_page(start_pfn), -nr_pages);  in offline_pages()
1929 	adjust_present_page_count(pfn_to_page(start_pfn), group, -nr_pages);  in offline_pages()
1948 	remove_pfn_range_from_zone(zone, start_pfn, nr_pages);  in offline_pages()
1954 	undo_isolate_page_range(start_pfn, end_pfn, MIGRATE_MOVABLE);  in offline_pages()
1961 		 (unsigned long long) start_pfn << PAGE_SHIFT,  in offline_pages()