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RDS: Do not send congestion updates to loopback connections 

This issue was discovered by HP's Pradeep and fixed in OFED
1.3, but not fixed in later versions, since the fix's implementation
was not immediately applyable to the later code. This patch should
do the trick for 1.4+ codebases.

Signed-off-by: Andy Grover <andy.grover@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andy Grover 2009-10-30 08:51:56 +00:00 committed by David S. Miller
parent 433d308dd8
commit 0514f8a9c0
1 changed files with 2 additions and 0 deletions
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2
net/rds/cong.c
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@ -218,6 +218,8 @@ void rds_cong_queue_updates(struct rds_cong_map *map)
spin_lock_irqsave(&rds_cong_lock, flags);
list_for_each_entry(conn, &map->m_conn_list, c_map_item) {
if (conn->c_loopback)
continue;
if (!test_and_set_bit(0, &conn->c_map_queued)) {
rds_stats_inc(s_cong_update_queued);
queue_delayed_work(rds_wq, &conn->c_send_w, 0);