linux-kernel - [PATCH 5.15 2/3] NFSv4: Clear NFS_CAP_OPEN_XOR and NFS_CAP

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Message-ID: <2e811427a30b62898f63bab33ec07d9253061a33.1758805195.git.siddh.raman.pant@oracle.com>
Date: Thu, 25 Sep 2025 18:31:45 +0530
From: Siddh Raman Pant <siddh.raman.pant@...cle.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org, stable@...nel.org
Cc: Trond Myklebust <trond.myklebust@...merspace.com>
Subject: [PATCH 5.15 2/3] NFSv4: Clear NFS_CAP_OPEN_XOR and NFS_CAP_DELEGTIME if not supported

From: Trond Myklebust <trond.myklebust@...merspace.com>

_nfs4_server_capabilities() should clear capabilities that are not
supported by the server.

Fixes: d2a00cceb93a ("NFSv4: Detect support for OPEN4_SHARE_ACCESS_WANT_OPEN_XOR_DELEGATION")
Signed-off-by: Trond Myklebust <trond.myklebust@...merspace.com>
(cherry picked from commit b3ac33436030bce37ecb3dcae581ecfaad28078c)
Signed-off-by: Siddh Raman Pant <siddh.raman.pant@...cle.com>
---
 fs/nfs/nfs4proc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 3d854e2537bc..91b95310e107 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -3906,7 +3906,8 @@ static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *f
 		memcpy(server->attr_bitmask, res.attr_bitmask, sizeof(server->attr_bitmask));
 		server->caps &=
 			~(NFS_CAP_ACLS | NFS_CAP_HARDLINKS | NFS_CAP_SYMLINKS |
-			  NFS_CAP_SECURITY_LABEL | NFS_CAP_FS_LOCATIONS);
+			  NFS_CAP_SECURITY_LABEL | NFS_CAP_FS_LOCATIONS |
+			  NFS_CAP_OPEN_XOR | NFS_CAP_DELEGTIME);
 		server->fattr_valid = NFS_ATTR_FATTR_V4;
 		if (res.attr_bitmask[0] & FATTR4_WORD0_ACL &&
 				res.acl_bitmask & ACL4_SUPPORT_ALLOW_ACL)
-- 
2.51.0