233 	unsigned long i, pfn, end_pfn, nr_pages;  in register_page_bootmem_info_node()  local
237 	nr_pages = PAGE_ALIGN(sizeof(struct pglist_data)) >> PAGE_SHIFT;  in register_page_bootmem_info_node()
240 	for (i = 0; i < nr_pages; i++, page++)  in register_page_bootmem_info_node()
260 static int check_pfn_span(unsigned long pfn, unsigned long nr_pages,  in check_pfn_span()  argument
279 			|| !IS_ALIGNED(nr_pages, min_align)) {  in check_pfn_span()
281 				reason, pfn, pfn + nr_pages - 1);  in check_pfn_span()
288 					    unsigned long nr_pages)  in check_hotplug_memory_addressable()  argument
290 	const u64 max_addr = PFN_PHYS(pfn + nr_pages) - 1;  in check_hotplug_memory_addressable()
309 int __ref __add_pages(int nid, unsigned long pfn, unsigned long nr_pages,  in __add_pages()  argument
312 	const unsigned long end_pfn = pfn + nr_pages;  in __add_pages()
320 	err = check_hotplug_memory_addressable(pfn, nr_pages);  in __add_pages()
329 				|| vmem_altmap_offset(altmap) > nr_pages) {  in __add_pages()
336 	err = check_pfn_span(pfn, nr_pages, "add");  in __add_pages()
472 				      unsigned long nr_pages)  in remove_pfn_range_from_zone()  argument
474 	const unsigned long end_pfn = start_pfn + nr_pages;  in remove_pfn_range_from_zone()
502 	shrink_zone_span(zone, start_pfn, start_pfn + nr_pages);  in remove_pfn_range_from_zone()
509 static void __remove_section(unsigned long pfn, unsigned long nr_pages,  in __remove_section()  argument
518 	sparse_remove_section(ms, pfn, nr_pages, map_offset, altmap);  in __remove_section()
532 void __remove_pages(unsigned long pfn, unsigned long nr_pages,  in __remove_pages()  argument
535 	const unsigned long end_pfn = pfn + nr_pages;  in __remove_pages()
541 	if (check_pfn_span(pfn, nr_pages, "remove"))  in __remove_pages()
610 static void online_pages_range(unsigned long start_pfn, unsigned long nr_pages)  in online_pages_range()  argument
612 	const unsigned long end_pfn = start_pfn + nr_pages;  in online_pages_range()
629 static void node_states_check_changes_online(unsigned long nr_pages,  in node_states_check_changes_online()  argument
661 		unsigned long nr_pages)  in resize_zone_range()  argument
668 	zone->spanned_pages = max(start_pfn + nr_pages, old_end_pfn) - zone->zone_start_pfn;  in resize_zone_range()
672                                      unsigned long nr_pages)  in resize_pgdat_range()  argument
679 	pgdat->node_spanned_pages = max(start_pfn + nr_pages, old_end_pfn) - pgdat->node_start_pfn;  in resize_pgdat_range()
692 				  unsigned long nr_pages,  in move_pfn_range_to_zone()  argument
705 		init_currently_empty_zone(zone, start_pfn, nr_pages);  in move_pfn_range_to_zone()
706 	resize_zone_range(zone, start_pfn, nr_pages);  in move_pfn_range_to_zone()
708 	resize_pgdat_range(pgdat, start_pfn, nr_pages);  in move_pfn_range_to_zone()
717 	memmap_init_zone(nr_pages, nid, zone_idx(zone), start_pfn,  in move_pfn_range_to_zone()
729 		unsigned long nr_pages)  in default_kernel_zone_for_pfn()  argument
737 		if (zone_intersects(zone, start_pfn, nr_pages))  in default_kernel_zone_for_pfn()
745 		unsigned long nr_pages)  in default_zone_for_pfn()  argument
748 			nr_pages);  in default_zone_for_pfn()
750 	bool in_kernel = zone_intersects(kernel_zone, start_pfn, nr_pages);  in default_zone_for_pfn()
751 	bool in_movable = zone_intersects(movable_zone, start_pfn, nr_pages);  in default_zone_for_pfn()
769 		unsigned long nr_pages)  in zone_for_pfn_range()  argument
772 		return default_kernel_zone_for_pfn(nid, start_pfn, nr_pages);  in zone_for_pfn_range()
777 	return default_zone_for_pfn(nid, start_pfn, nr_pages);  in zone_for_pfn_range()
780 int __ref online_pages(unsigned long pfn, unsigned long nr_pages,  in online_pages()  argument
790 	if (WARN_ON_ONCE(!nr_pages ||  in online_pages()
791 			 !IS_ALIGNED(pfn | nr_pages, PAGES_PER_SECTION)))  in online_pages()
797 	zone = zone_for_pfn_range(online_type, nid, pfn, nr_pages);  in online_pages()
798 	move_pfn_range_to_zone(zone, pfn, nr_pages, NULL, MIGRATE_ISOLATE);  in online_pages()
801 	arg.nr_pages = nr_pages;  in online_pages()
802 	node_states_check_changes_online(nr_pages, zone, &arg);  in online_pages()
814 	zone->nr_isolate_pageblock += nr_pages / pageblock_nr_pages;  in online_pages()
827 	online_pages_range(pfn, nr_pages);  in online_pages()
828 	zone->present_pages += nr_pages;  in online_pages()
831 	zone->zone_pgdat->node_present_pages += nr_pages;  in online_pages()
840 	undo_isolate_page_range(pfn, pfn + nr_pages, MIGRATE_MOVABLE);  in online_pages()
864 		 (((unsigned long long) pfn + nr_pages) << PAGE_SHIFT) - 1);  in online_pages()
866 	remove_pfn_range_from_zone(zone, pfn, nr_pages);  in online_pages()
1377 static void node_states_check_changes_offline(unsigned long nr_pages,  in node_states_check_changes_offline()  argument
1398 	if (zone_idx(zone) <= ZONE_NORMAL && nr_pages >= present_pages)  in node_states_check_changes_offline()
1411 	if (zone_idx(zone) <= ZONE_HIGHMEM && nr_pages >= present_pages)  in node_states_check_changes_offline()
1427 	if (nr_pages >= present_pages)  in node_states_check_changes_offline()
1444 				     unsigned long nr_pages, void *data)  in count_system_ram_pages_cb()  argument
1448 	*nr_system_ram_pages += nr_pages;  in count_system_ram_pages_cb()
1452 int __ref offline_pages(unsigned long start_pfn, unsigned long nr_pages)  in offline_pages()  argument
1454 	const unsigned long end_pfn = start_pfn + nr_pages;  in offline_pages()
1463 	if (WARN_ON_ONCE(!nr_pages ||  in offline_pages()
1464 			 !IS_ALIGNED(start_pfn | nr_pages, PAGES_PER_SECTION)))  in offline_pages()
1477 	walk_system_ram_range(start_pfn, nr_pages, &system_ram_pages,  in offline_pages()
1479 	if (system_ram_pages != nr_pages) {  in offline_pages()
1505 	arg.nr_pages = nr_pages;  in offline_pages()
1506 	node_states_check_changes_offline(nr_pages, zone, &arg);  in offline_pages()
1572 	pr_info("Offlined Pages %ld\n", nr_pages);  in offline_pages()
1580 	zone->nr_isolate_pageblock -= nr_pages / pageblock_nr_pages;  in offline_pages()
1584 	adjust_managed_page_count(pfn_to_page(start_pfn), -nr_pages);  in offline_pages()
1585 	zone->present_pages -= nr_pages;  in offline_pages()
1588 	zone->zone_pgdat->node_present_pages -= nr_pages;  in offline_pages()
1608 	remove_pfn_range_from_zone(zone, start_pfn, nr_pages);  in offline_pages()