From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Ursula Braun Subject: [PATCH net-next 3/7] net/smc: no delay for free tx buffer wait Date: Tue, 12 Feb 2019 16:29:52 +0100 In-Reply-To: <20190212152956.71041-1-ubraun@linux.ibm.com> References: <20190212152956.71041-1-ubraun@linux.ibm.com> Message-Id: <20190212152956.71041-4-ubraun@linux.ibm.com> Sender: netdev-owner@vger.kernel.org List-Archive: List-Post: To: davem@davemloft.net Cc: netdev@vger.kernel.org, linux-s390@vger.kernel.org, schwidefsky@de.ibm.com, heiko.carstens@de.ibm.com, raspl@linux.ibm.com, ubraun@linux.ibm.com List-ID: From: Karsten Graul When no free transfer buffers are available then a work to call smc_tx_work() is scheduled. Set the schedule delay to zero, because for the out-of-buffers condition the work can start immediately and will block in the called function smc_wr_tx_get_free_slot(), waiting for free buffers. Signed-off-by: Karsten Graul Signed-off-by: Ursula Braun --- net/smc/smc_tx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/smc/smc_tx.c b/net/smc/smc_tx.c index dd10a913b38e..a3bff08ff8c8 100644 --- a/net/smc/smc_tx.c +++ b/net/smc/smc_tx.c @@ -28,7 +28,7 @@ #include "smc_ism.h" #include "smc_tx.h" -#define SMC_TX_WORK_DELAY HZ +#define SMC_TX_WORK_DELAY 0 #define SMC_TX_CORK_DELAY (HZ >> 2) /* 250 ms */ /***************************** sndbuf producer *******************************/ -- 2.16.4