blkcg_serial_nr   726 block/bfq-cgroup.c 	if (unlikely(!bfqd) || likely(bic->blkcg_serial_nr == serial_nr))
blkcg_serial_nr   781 block/bfq-cgroup.c 	bic->blkcg_serial_nr = serial_nr;
blkcg_serial_nr   394 block/bfq-iosched.h 	uint64_t blkcg_serial_nr; /* the current blkcg serial */