linux-kernel - [PATCH 3.18 056/144] NFS: Ignore transport protocol when detecting server trunking

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Message-Id: <20181108215058.897159886@linuxfoundation.org>
Date:   Thu,  8 Nov 2018 13:50:27 -0800
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dai Ngo <dai.ngo@...cle.com>,
        Chuck Lever <chuck.lever@...cle.com>,
        Trond Myklebust <trond.myklebust@...marydata.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 3.18 056/144] NFS: Ignore transport protocol when detecting server trunking

3.18-stable review patch.  If anyone has any objections, please let me know.

------------------

[ Upstream commit 7a01edf0058df98d6cc734c5a4ecc51f929a86ec ]

Detect server trunking across transport protocols. Otherwise, an
RDMA mount and a TCP mount of the same server will end up with
separate nfs_clients using the same clientid4.

Reported-by: Dai Ngo <dai.ngo@...cle.com>
Signed-off-by: Chuck Lever <chuck.lever@...cle.com>
Signed-off-by: Trond Myklebust <trond.myklebust@...marydata.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 fs/nfs/nfs4client.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index a8a9be4c6cf4..eb8777eb4d2b 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -495,9 +495,6 @@ int nfs40_walk_client_list(struct nfs_client *new,
 		if (pos->rpc_ops != new->rpc_ops)
 			continue;
 
-		if (pos->cl_proto != new->cl_proto)
-			continue;
-
 		if (pos->cl_minorversion != new->cl_minorversion)
 			continue;
 
@@ -633,9 +630,6 @@ int nfs41_walk_client_list(struct nfs_client *new,
 		if (pos->rpc_ops != new->rpc_ops)
 			continue;
 
-		if (pos->cl_proto != new->cl_proto)
-			continue;
-
 		if (pos->cl_minorversion != new->cl_minorversion)
 			continue;
 
-- 
2.17.1