netdev - [PATCH 06/12] RDS: Establish connection before parsing CMSGs

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Date:	Thu,  9 Apr 2009 17:09:41 -0700
From:	Andy Grover <andy.grover@...cle.com>
To:	netdev@...r.kernel.org
Cc:	rds-devel@....oracle.com
Subject: [PATCH 06/12] RDS: Establish connection before parsing CMSGs

The first message to a remote node should prompt a new connection.
Even an RDMA op via CMSG. Therefore move CMSG parsing to after
connection establishment.

Signed-off-by: Andy Grover <andy.grover@...cle.com>
---
 net/rds/send.c |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/net/rds/send.c b/net/rds/send.c
index 104fe03..a4a7f42 100644
--- a/net/rds/send.c
+++ b/net/rds/send.c
@@ -854,11 +854,6 @@ int rds_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg,
 
 	rm->m_daddr = daddr;
 
-	/* Parse any control messages the user may have included. */
-	ret = rds_cmsg_send(rs, rm, msg, &allocated_mr);
-	if (ret)
-		goto out;
-
 	/* rds_conn_create has a spinlock that runs with IRQ off.
 	 * Caching the conn in the socket helps a lot. */
 	if (rs->rs_conn && rs->rs_conn->c_faddr == daddr)
@@ -874,6 +869,11 @@ int rds_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg,
 		rs->rs_conn = conn;
 	}
 
+	/* Parse any control messages the user may have included. */
+	ret = rds_cmsg_send(rs, rm, msg, &allocated_mr);
+	if (ret)
+		goto out;
+
 	if ((rm->m_rdma_cookie || rm->m_rdma_op)
 	 && conn->c_trans->xmit_rdma == NULL) {
 		if (printk_ratelimit())
-- 
1.5.6.3

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