RDS: split out connection specific state from rds_connection to rds_conn_path

In preparation for multipath RDS, split the rds_connection
structure into a base structure, and a per-path struct rds_conn_path.
The base structure tracks information and locks common to all
paths. The workqs for send/recv/shutdown etc are tracked per
rds_conn_path. Thus the workq callbacks now work with rds_conn_path.

This commit allows for one rds_conn_path per rds_connection, and will
be extended into multiple conn_paths in  subsequent commits.

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 1 deletions

diff --git a/net/rds/tcp_connect.c b/net/rds/tcp_connect.c
index fba13d0305fb..ba9ec67f4e41 100644
--- a/net/rds/tcp_connect.c
+++ b/net/rds/tcp_connect.c
@@ -34,6 +34,7 @@
 #include <linux/in.h>
 #include <net/tcp.h>
 
+#include "rds_single_path.h"
 #include "rds.h"
 #include "tcp.h"
 
@@ -60,7 +61,8 @@ void rds_tcp_state_change(struct sock *sk)
                 case TCP_SYN_RECV:
                         break;
                 case TCP_ESTABLISHED:
-                        rds_connect_path_complete(conn, RDS_CONN_CONNECTING);
+                        rds_connect_path_complete(&conn->c_path[0],
+                                                  RDS_CONN_CONNECTING);
                         break;
                 case TCP_CLOSE_WAIT:
                 case TCP_CLOSE: