In commit 
ea785a1a573b("net/smc: Send directly when
TCP_CORK is cleared"), we don't use delayed work
to implement cork.
This patch use the same algorithm, removes the
delayed work when setting TCP_NODELAY and send
directly in setsockopt(). This also makes the
TCP_NODELAY the same as TCP.
Cc: Tony Lu <tonylu@linux.alibaba.com>
Signed-off-by: Dust Li <dust.li@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
                    sk->sk_state != SMC_CLOSED) {
                        if (val) {
                                SMC_STAT_INC(smc, ndly_cnt);
-                               mod_delayed_work(smc->conn.lgr->tx_wq,
-                                                &smc->conn.tx_work, 0);
+                               smc_tx_pending(&smc->conn);
+                               cancel_delayed_work(&smc->conn.tx_work);
                        }
                }
                break;