[PATCH] nfs: do not initialize back channel with DS

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Signed-off-by: Tigran Mkrtchyan <tigran.mkrtchyan@xxxxxxx>
---
 fs/nfs/nfs4proc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 2e7c9f7..7f9674d 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -7236,9 +7236,12 @@ static int _nfs4_proc_create_session(struct nfs_client *clp,
 		.rpc_cred = cred,
 	};
 	int status;
+	int flags = SESSION4_PERSIST;
 
 	nfs4_init_channel_attrs(&args);
-	args.flags = (SESSION4_PERSIST | SESSION4_BACK_CHAN);
+	if (!is_ds_only_client(clp))
+		flags |= SESSION4_BACK_CHAN;
+	args.flags = flags;
 
 	status = rpc_call_sync(session->clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
 	trace_nfs4_create_session(clp, status);
-- 
2.1.0

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