From mboxrd@z Thu Jan 1 00:00:00 1970 From: Santosh Shilimkar Subject: [PATCH 06/14] RDS: check for congestion updates during rds_send_xmit Date: Sat, 22 Aug 2015 15:45:27 -0700 Message-ID: <1440283535-4800-7-git-send-email-santosh.shilimkar@oracle.com> References: <1440283535-4800-1-git-send-email-santosh.shilimkar@oracle.com> Cc: linux-kernel@vger.kernel.org, davem@davemloft.net, ssantosh@kernel.org, Santosh Shilimkar To: netdev@vger.kernel.org Return-path: In-Reply-To: <1440283535-4800-1-git-send-email-santosh.shilimkar@oracle.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Ensure we don't keep sending the data if the link is congested. Reviewed-by: Ajaykumar Hotchandani Signed-off-by: Santosh Shilimkar Signed-off-by: Santosh Shilimkar --- net/rds/send.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/rds/send.c b/net/rds/send.c index e9430f5..dbdf907 100644 --- a/net/rds/send.c +++ b/net/rds/send.c @@ -411,7 +411,8 @@ over_batch: */ if (ret == 0) { smp_mb(); - if (!list_empty(&conn->c_send_queue) && + if ((test_bit(0, &conn->c_map_queued) || + !list_empty(&conn->c_send_queue)) && send_gen == conn->c_send_gen) { rds_stats_inc(s_send_lock_queue_raced); goto restart; -- 1.9.1