From 0c484240210a8c835a216dbca6f1d690e4094a7c Mon Sep 17 00:00:00 2001 From: "santosh.shilimkar@oracle.com" Date: Sat, 22 Aug 2015 15:45:27 -0700 Subject: [PATCH] RDS: check for congestion updates during rds_send_xmit 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 Signed-off-by: David S. Miller --- 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 2581b8e..dd901c3 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; -- 2.7.4