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authorSteve Wise <swise@opengridcomputing.com>2009-04-09 14:09:38 +0000
committerDavid S. Miller <davem@davemloft.net>2009-04-09 17:21:16 -0700
commitd39e0602bb987133321d358d9b837d67c27b223d (patch)
tree0353b7c1fd6b9b5672c5d4b74e1935428822a47a /net/rds/ib_send.c
parent11bc9421da3040c71fc96da1a31e95217e8cf2af (diff)
downloadop-kernel-dev-d39e0602bb987133321d358d9b837d67c27b223d.zip
op-kernel-dev-d39e0602bb987133321d358d9b837d67c27b223d.tar.gz
RDS/IW+IB: Set the RDS_LL_SEND_FULL bit when we're throttled.
The RDS_LL_SEND_FULL bit should be set when we stop transmitted due to flow control. Otherwise the send worker will keep trying as opposed to sleeping until we unthrottle. Saves CPU. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/rds/ib_send.c')
-rw-r--r--net/rds/ib_send.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/rds/ib_send.c b/net/rds/ib_send.c
index cb6c52c..fa684b7 100644
--- a/net/rds/ib_send.c
+++ b/net/rds/ib_send.c
@@ -506,7 +506,7 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
flow_controlled++;
}
if (work_alloc == 0) {
- rds_ib_ring_unalloc(&ic->i_send_ring, work_alloc);
+ set_bit(RDS_LL_SEND_FULL, &conn->c_flags);
rds_ib_stats_inc(s_ib_tx_throttle);
ret = -ENOMEM;
goto out;
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