nfs4: flexfiles: respect noresvport when establishing connections to DSes

Signed-off-by: NTigran Mkrtchyan <tigran.mkrtchyan@desy.de>
Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>

fs/nfs/internal.h

@@ -195,7 +195,7 @@ extern struct nfs_client *nfs4_set_ds_client(struct nfs_server *mds_srv,
 					     rpc_authflavor_t au_flavor);
 extern struct rpc_clnt *nfs4_find_or_create_ds_client(struct nfs_client *,
 						struct inode *);
-extern struct nfs_client *nfs3_set_ds_client(struct nfs_client *mds_clp,
+extern struct nfs_client *nfs3_set_ds_client(struct nfs_server *mds_srv,
 			const struct sockaddr *ds_addr, int ds_addrlen,
 			int ds_proto, unsigned int ds_timeo,
 			unsigned int ds_retrans, rpc_authflavor_t au_flavor);

fs/nfs/nfs3client.c

@@ -76,12 +76,13 @@ struct nfs_server *nfs3_clone_server(struct nfs_server *source,
  * low timeout interval so that if a connection is lost, we retry through
  * the MDS.
  */
-struct nfs_client *nfs3_set_ds_client(struct nfs_client *mds_clp,
+struct nfs_client *nfs3_set_ds_client(struct nfs_server *mds_srv,
 		const struct sockaddr *ds_addr, int ds_addrlen,
 		int ds_proto, unsigned int ds_timeo, unsigned int ds_retrans,
 		rpc_authflavor_t au_flavor)
 {
 	struct rpc_timeout ds_timeout;
+	struct nfs_client *mds_clp = mds_srv->nfs_client;
 	struct nfs_client_initdata cl_init = {
 		.addr = ds_addr,
 		.addrlen = ds_addrlen,
@@ -100,6 +101,9 @@ struct nfs_client *nfs3_set_ds_client(struct nfs_client *mds_clp,
 		return ERR_PTR(-EINVAL);
 	cl_init.hostname = buf;
 
+	if (mds_srv->flags & NFS_MOUNT_NORESVPORT)
+		set_bit(NFS_CS_NORESVPORT, &cl_init.init_flags);
+
 	/* Use the MDS nfs_client cl_ipaddr. */
 	nfs_init_timeout_values(&ds_timeout, ds_proto, ds_timeo, ds_retrans);
 	clp = nfs_get_client(&cl_init, au_flavor);

fs/nfs/pnfs_nfs.c

@@ -595,7 +595,7 @@ static void nfs4_clear_ds_conn_bit(struct nfs4_pnfs_ds *ds)
 }
 
 static struct nfs_client *(*get_v3_ds_connect)(
-			struct nfs_client *mds_clp,
+			struct nfs_server *mds_srv,
 			const struct sockaddr *ds_addr,
 			int ds_addrlen,
 			int ds_proto,
@@ -654,7 +654,7 @@ static int _nfs4_pnfs_v3_ds_connect(struct nfs_server *mds_srv,
 			rpc_clnt_add_xprt(clp->cl_rpcclient, &xprt_args,
 					rpc_clnt_test_and_add_xprt, NULL);
 		} else
-			clp = get_v3_ds_connect(mds_srv->nfs_client,
+			clp = get_v3_ds_connect(mds_srv,
 					(struct sockaddr *)&da->da_addr,
 					da->da_addrlen, IPPROTO_TCP,
 					timeo, retrans, au_flavor);