RDS-TCP: Make RDS-TCP work correctly when it is set up in a netns other than init_net

Open the sockets calling sock_create_kern() with the correct struct net
pointer, and use that struct net pointer when verifying the
address passed to rds_bind().

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/rds/transport.c b/net/rds/transport.c
index 83498e1..f3afd1d 100644
--- a/net/rds/transport.c
+++ b/net/rds/transport.c
@@ -77,7 +77,7 @@
 		module_put(trans->t_owner);
 }
 
-struct rds_transport *rds_trans_get_preferred(__be32 addr)
+struct rds_transport *rds_trans_get_preferred(struct net *net, __be32 addr)
 {
 	struct rds_transport *ret = NULL;
 	struct rds_transport *trans;
@@ -90,7 +90,7 @@
 	for (i = 0; i < RDS_TRANS_COUNT; i++) {
 		trans = transports[i];
 
-		if (trans && (trans->laddr_check(addr) == 0) &&
+		if (trans && (trans->laddr_check(net, addr) == 0) &&
 		    (!trans->t_owner || try_module_get(trans->t_owner))) {
 			ret = trans;
 			break;