1 files changed, 7 insertions, 0 deletions
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 9e6c69d18581..92448f2c362c 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -2881,6 +2881,13 @@ __poll_t smc_poll(struct file *file, struct socket *sock,
 			} else {
 				sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk);
 				set_bit(SOCK_NOSPACE, &sk->sk_socket->flags);
+
+				if (sk->sk_state != SMC_INIT) {
+					/* Race breaker the same way as tcp_poll(). */
+					smp_mb__after_atomic();
+					if (atomic_read(&smc->conn.sndbuf_space))
+						mask |= EPOLLOUT | EPOLLWRNORM;
+				}
 			}
 			if (atomic_read(&smc->conn.bytes_to_rcv))
 				mask |= EPOLLIN | EPOLLRDNORM;