RDS: Export symbols from core RDS

Now that rdma and tcp transports will be modularized,
we need to export a number of functions so they can call them.

Signed-off-by: Andy Grover <andy.grover@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/rds/send.c b/net/rds/send.c
index a4a7f42..28c88ff 100644
--- a/net/rds/send.c
+++ b/net/rds/send.c
@@ -439,6 +439,7 @@
 		sock_put(rds_rs_to_sk(rs));
 	}
 }
+EXPORT_SYMBOL_GPL(rds_rdma_send_complete);
 
 /*
  * This is the same as rds_rdma_send_complete except we
@@ -494,6 +495,7 @@
 
 	return found;
 }
+EXPORT_SYMBOL_GPL(rds_send_get_message);
 
 /*
  * This removes messages from the socket's list if they're on it.  The list
@@ -610,6 +612,7 @@
 	/* now remove the messages from the sock list as needed */
 	rds_send_remove_from_sock(&list, RDS_RDMA_SUCCESS);
 }
+EXPORT_SYMBOL_GPL(rds_send_drop_acked);
 
 void rds_send_drop_to(struct rds_sock *rs, struct sockaddr_in *dest)
 {