From: Dust Li <dust.li@xxxxxxxxxxxxxxxxx> commit b70a5cc045197aad9c159042621baf3c015f6cc7 upstream. 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@xxxxxxxxxxxxxxxxx> Signed-off-by: Dust Li <dust.li@xxxxxxxxxxxxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- net/smc/af_smc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -2625,8 +2625,8 @@ static int smc_setsockopt(struct socket 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; Patches currently in stable-queue which might be from dust.li@xxxxxxxxxxxxxxxxx are queue-5.17/net-smc-send-directly-on-setting-tcp_nodelay.patch queue-5.17/net-smc-correct-settings-of-rmb-window-update-limit.patch