3897 	unsigned long gseq = READ_ONCE(rcu_state.barrier_sequence);  in rcu_barrier_entrain()  local
3901 	if (rcu_seq_state(lseq) || !rcu_seq_state(gseq) || rcu_seq_ctr(lseq) != rcu_seq_ctr(gseq))  in rcu_barrier_entrain()
3915 	smp_store_release(&rdp->barrier_seq_snap, gseq);  in rcu_barrier_entrain()
3946 	unsigned long gseq;  in rcu_barrier()  local
3966 	gseq = rcu_state.barrier_sequence;  in rcu_barrier()
3988 		if (smp_load_acquire(&rdp->barrier_seq_snap) == gseq)  in rcu_barrier()
3992 			WRITE_ONCE(rdp->barrier_seq_snap, gseq);  in rcu_barrier()
3999 			WARN_ON_ONCE(READ_ONCE(rdp->barrier_seq_snap) != gseq);  in rcu_barrier()
4009 		WARN_ON_ONCE(READ_ONCE(rdp->barrier_seq_snap) != gseq);  in rcu_barrier()
4026 	gseq = rcu_state.barrier_sequence;  in rcu_barrier()
4030 		WRITE_ONCE(rdp->barrier_seq_snap, gseq);  in rcu_barrier()