chunk_status     1758 mm/migrate.c   	int chunk_status[DO_PAGES_STAT_CHUNK_NR];
chunk_status     1770 mm/migrate.c   		do_pages_stat_array(mm, chunk_nr, chunk_pages, chunk_status);
chunk_status     1772 mm/migrate.c   		if (copy_to_user(status, chunk_status, chunk_nr * sizeof(*status)))