47 #define block_start_pfn(pfn, order)	round_down(pfn, 1UL << (order))  macro
49 #define pageblock_start_pfn(pfn)	block_start_pfn(pfn, pageblock_order)
595 	unsigned long isolated, pfn, block_start_pfn, block_end_pfn;  in isolate_freepages_range()  local
599 	block_start_pfn = pageblock_start_pfn(pfn);  in isolate_freepages_range()
600 	if (block_start_pfn < cc->zone->zone_start_pfn)  in isolate_freepages_range()
601 		block_start_pfn = cc->zone->zone_start_pfn;  in isolate_freepages_range()
605 				block_start_pfn = block_end_pfn,  in isolate_freepages_range()
618 			block_start_pfn = pageblock_start_pfn(pfn);  in isolate_freepages_range()
623 		if (!pageblock_pfn_to_page(block_start_pfn,  in isolate_freepages_range()
975 	unsigned long pfn, block_start_pfn, block_end_pfn;  in isolate_migratepages_range()  local
979 	block_start_pfn = pageblock_start_pfn(pfn);  in isolate_migratepages_range()
980 	if (block_start_pfn < cc->zone->zone_start_pfn)  in isolate_migratepages_range()
981 		block_start_pfn = cc->zone->zone_start_pfn;  in isolate_migratepages_range()
985 				block_start_pfn = block_end_pfn,  in isolate_migratepages_range()
990 		if (!pageblock_pfn_to_page(block_start_pfn,  in isolate_migratepages_range()
1070 	unsigned long block_start_pfn;	/* start of current pageblock */  in isolate_freepages()  local
1088 	block_start_pfn = pageblock_start_pfn(cc->free_pfn);  in isolate_freepages()
1089 	block_end_pfn = min(block_start_pfn + pageblock_nr_pages,  in isolate_freepages()
1098 	for (; block_start_pfn >= low_pfn;  in isolate_freepages()
1099 				block_end_pfn = block_start_pfn,  in isolate_freepages()
1100 				block_start_pfn -= pageblock_nr_pages,  in isolate_freepages()
1101 				isolate_start_pfn = block_start_pfn) {  in isolate_freepages()
1107 		if (!(block_start_pfn % (SWAP_CLUSTER_MAX * pageblock_nr_pages))  in isolate_freepages()
1111 		page = pageblock_pfn_to_page(block_start_pfn, block_end_pfn,  in isolate_freepages()
1140 					block_start_pfn - pageblock_nr_pages;  in isolate_freepages()
1227 	unsigned long block_start_pfn;  in isolate_migratepages()  local
1240 	block_start_pfn = pageblock_start_pfn(low_pfn);  in isolate_migratepages()
1241 	if (block_start_pfn < zone->zone_start_pfn)  in isolate_migratepages()
1242 		block_start_pfn = zone->zone_start_pfn;  in isolate_migratepages()
1253 			block_start_pfn = block_end_pfn,  in isolate_migratepages()
1265 		page = pageblock_pfn_to_page(block_start_pfn, block_end_pfn,  in isolate_migratepages()
1657 				block_start_pfn(cc->migrate_pfn, cc->order);  in compact_zone()