67 #define block_start_pfn(pfn, order)	round_down(pfn, 1UL << (order))  macro
731 	unsigned long isolated, pfn, block_start_pfn, block_end_pfn;  in isolate_freepages_range()  local
738 	block_start_pfn = pageblock_start_pfn(pfn);  in isolate_freepages_range()
739 	if (block_start_pfn < cc->zone->zone_start_pfn)  in isolate_freepages_range()
740 		block_start_pfn = cc->zone->zone_start_pfn;  in isolate_freepages_range()
744 				block_start_pfn = block_end_pfn,  in isolate_freepages_range()
755 			block_start_pfn = pageblock_start_pfn(pfn);  in isolate_freepages_range()
761 		if (!pageblock_pfn_to_page(block_start_pfn,  in isolate_freepages_range()
1359 	unsigned long pfn, block_start_pfn, block_end_pfn;  in isolate_migratepages_range()  local
1364 	block_start_pfn = pageblock_start_pfn(pfn);  in isolate_migratepages_range()
1365 	if (block_start_pfn < cc->zone->zone_start_pfn)  in isolate_migratepages_range()
1366 		block_start_pfn = cc->zone->zone_start_pfn;  in isolate_migratepages_range()
1370 				block_start_pfn = block_end_pfn,  in isolate_migratepages_range()
1375 		if (!pageblock_pfn_to_page(block_start_pfn,  in isolate_migratepages_range()
1717 	unsigned long block_start_pfn;	/* start of current pageblock */  in isolate_freepages()  local
1740 	block_start_pfn = pageblock_start_pfn(isolate_start_pfn);  in isolate_freepages()
1741 	block_end_pfn = min(block_start_pfn + pageblock_nr_pages,  in isolate_freepages()
1751 	for (; block_start_pfn >= low_pfn;  in isolate_freepages()
1752 				block_end_pfn = block_start_pfn,  in isolate_freepages()
1753 				block_start_pfn -= pageblock_nr_pages,  in isolate_freepages()
1754 				isolate_start_pfn = block_start_pfn) {  in isolate_freepages()
1761 		if (!(block_start_pfn % (COMPACT_CLUSTER_MAX * pageblock_nr_pages)))  in isolate_freepages()
1764 		page = pageblock_pfn_to_page(block_start_pfn, block_end_pfn,  in isolate_freepages()
1769 			next_pfn = skip_offline_sections_reverse(block_start_pfn);  in isolate_freepages()
1771 				block_start_pfn = max(next_pfn, low_pfn);  in isolate_freepages()
1790 			update_pageblock_skip(cc, page, block_start_pfn -  in isolate_freepages()
1801 					block_start_pfn - pageblock_nr_pages;  in isolate_freepages()
2083 	unsigned long block_start_pfn;  in isolate_migratepages()  local
2098 	block_start_pfn = pageblock_start_pfn(low_pfn);  in isolate_migratepages()
2099 	if (block_start_pfn < cc->zone->zone_start_pfn)  in isolate_migratepages()
2100 		block_start_pfn = cc->zone->zone_start_pfn;  in isolate_migratepages()
2119 			block_start_pfn = block_end_pfn,  in isolate_migratepages()
2130 		page = pageblock_pfn_to_page(block_start_pfn,  in isolate_migratepages()
2135 			next_pfn = skip_offline_sections(block_start_pfn);  in isolate_migratepages()
2725 				block_start_pfn(cc->migrate_pfn, cc->order);  in compact_zone()