Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1211530

[PATCH 06/14] RDS: check for congestion updates during rds_send_xmit

Show all headers | View raw

Ensure we don't keep sending the data if the link is congested.

Reviewed-by: Ajaykumar Hotchandani <ajaykumar.hotchandani@oracle.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
---
 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

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[PATCH 00/14] RDS: Assorted bug fixes Santosh Shilimkar <santosh.shilimkar@oracle.com> - 2015-08-23 00:50 +0200
  [PATCH 12/14] RDS: make sure rds_send_drop_to properly takes the m_rs_lock Santosh Shilimkar <santosh.shilimkar@oracle.com> - 2015-08-23 00:50 +0200
  [PATCH 01/14] RDS: restore return value in rds_cmsg_rdma_args() Santosh Shilimkar <santosh.shilimkar@oracle.com> - 2015-08-23 01:00 +0200
  [PATCH 06/14] RDS: check for congestion updates during rds_send_xmit Santosh Shilimkar <santosh.shilimkar@oracle.com> - 2015-08-23 01:00 +0200
  Re: [PATCH 00/14] RDS: Assorted bug fixes David Miller <davem@davemloft.net> - 2015-08-25 22:40 +0200

csiph-web