linux-kernel - [PATCH] nfs41: flexfiles: drop dependency between flexfiles layout driver and NFSv3 modules

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Message-Id: <20230829110411.8394-1-tigran.mkrtchyan@desy.de>
Date:   Tue, 29 Aug 2023 11:04:11 +0000
From:   Tigran Mkrtchyan <tigran.mkrtchyan@...y.de>
To:     linux-kernel@...r.kernel.org
Cc:     anna@...nel.org, trond.myklebust@...merspace.com,
        Tigran Mkrtchyan <tigran.mkrtchyan@...y.de>
Subject: [PATCH] nfs41: flexfiles: drop dependency between flexfiles layout driver and NFSv3 modules

The flexfiles layout driver depends on NFSv3 module as data servers
might be configure to provide nfsv3 only.

Disabling the nfsv3 protocol completely disables the flexfiles layout driver,
however, the data server still might support v4.1 protocol. Thus the strond
couling betwwen flexfiles and nfsv3 modules should be relaxed, as layout driver
will return UNSUPPORTED if not matching protocol is found.

Signed-off-by: Tigran Mkrtchyan <tigran.mkrtchyan@...y.de>
---
 fs/nfs/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
index b6fc169be1b1..ba95246be09e 100644
--- a/fs/nfs/Kconfig
+++ b/fs/nfs/Kconfig
@@ -125,7 +125,7 @@ config PNFS_BLOCK

 config PNFS_FLEXFILE_LAYOUT
 	tristate
-	depends on NFS_V4_1 && NFS_V3
+	depends on NFS_V4_1
 	default NFS_V4

 config NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
-- 
2.39.1