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, 2 insertions, 1 deletions

diff --git a/net/rds/cong.c b/net/rds/cong.c
index 6641bcf7c185..8398fee7c866 100644
--- a/net/rds/cong.c
+++ b/net/rds/cong.c
@@ -235,7 +235,8 @@ void rds_cong_queue_updates(struct rds_cong_map *map)
                          *    therefore trigger warnings.
                          * Defer the xmit to rds_send_worker() instead.
                          */
-                        queue_delayed_work(rds_wq, &conn->c_send_w, 0);
+                        queue_delayed_work(rds_wq,
+                                           &conn->c_path[0].cp_send_w, 0);
                 }
         }