old_block_type 2397 mm/page_alloc.c int old_block_type; old_block_type 2399 mm/page_alloc.c old_block_type = get_pageblock_migratetype(page); old_block_type 2405 mm/page_alloc.c if (is_migrate_highatomic(old_block_type)) old_block_type 2444 mm/page_alloc.c if (old_block_type == MIGRATE_MOVABLE)