338 	unsigned long migrate_pfn = zone->zone_start_pfn;  in __reset_isolation_suitable()  local
341 	unsigned long reset_free = migrate_pfn;  in __reset_isolation_suitable()
356 	for (; migrate_pfn < free_pfn; migrate_pfn += pageblock_nr_pages,  in __reset_isolation_suitable()
361 		if (__reset_isolation_pfn(zone, migrate_pfn, true, source_set) &&  in __reset_isolation_suitable()
362 		    migrate_pfn < reset_migrate) {  in __reset_isolation_suitable()
364 			reset_migrate = migrate_pfn;  in __reset_isolation_suitable()
382 		zone->compact_cached_migrate_pfn[0] = migrate_pfn;  in __reset_isolation_suitable()
383 		zone->compact_cached_migrate_pfn[1] = migrate_pfn;  in __reset_isolation_suitable()
841 	cc->migrate_pfn = low_pfn;  in isolate_migratepages_block()
1236 	cc->migrate_pfn = low_pfn;  in isolate_migratepages_block()
1356 		<= (cc->migrate_pfn >> pageblock_order);  in compact_scanners_met()
1470 	distance = (cc->free_pfn - cc->migrate_pfn);  in fast_isolate_freepages()
1637 	low_pfn = pageblock_end_pfn(cc->migrate_pfn);  in isolate_freepages()
1795 		return cc->migrate_pfn;  in reinit_migrate_pfn()
1797 	cc->migrate_pfn = cc->fast_start_pfn;  in reinit_migrate_pfn()
1800 	return cc->migrate_pfn;  in reinit_migrate_pfn()
1813 	unsigned long pfn = cc->migrate_pfn;  in fast_find_migrateblock()
1853 	distance = (cc->free_pfn - cc->migrate_pfn) >> 1;  in fast_find_migrateblock()
1854 	if (cc->migrate_pfn != cc->zone->zone_start_pfn)  in fast_find_migrateblock()
1856 	high_pfn = pageblock_start_pfn(cc->migrate_pfn + distance);  in fast_find_migrateblock()
1951 	fast_find_block = low_pfn != cc->migrate_pfn && !cc->fast_search_fail;  in isolate_migratepages()
1962 			cc->migrate_pfn = low_pfn = block_end_pfn,  in isolate_migratepages()
2161 	if (!IS_ALIGNED(cc->migrate_pfn, pageblock_nr_pages))  in __compact_finished()
2200 					IS_ALIGNED(cc->migrate_pfn,  in __compact_finished()
2400 		cc->migrate_pfn = start_pfn;  in compact_zone()
2403 		cc->migrate_pfn = cc->zone->compact_cached_migrate_pfn[sync];  in compact_zone()
2409 		if (cc->migrate_pfn < start_pfn || cc->migrate_pfn >= end_pfn) {  in compact_zone()
2410 			cc->migrate_pfn = start_pfn;  in compact_zone()
2411 			cc->zone->compact_cached_migrate_pfn[0] = cc->migrate_pfn;  in compact_zone()
2412 			cc->zone->compact_cached_migrate_pfn[1] = cc->migrate_pfn;  in compact_zone()
2415 		if (cc->migrate_pfn <= cc->zone->compact_init_migrate_pfn)  in compact_zone()
2432 	trace_mm_compaction_begin(start_pfn, cc->migrate_pfn,  in compact_zone()
2440 		unsigned long iteration_start_pfn = cc->migrate_pfn;  in compact_zone()
2506 				cc->migrate_pfn = block_end_pfn(  in compact_zone()
2507 						cc->migrate_pfn - 1, cc->order);  in compact_zone()
2523 				block_start_pfn(cc->migrate_pfn, cc->order);  in compact_zone()
2562 	trace_mm_compaction_end(start_pfn, cc->migrate_pfn,  in compact_zone()