[PATCH v1] NFSD: Define actions for the new time_deleg FATTR4 attributes

[Chuck Lever <cel@kernel.org>]

From: Chuck Lever <chuck.lever@oracle.com>

NFSv4 clients won't send legitimate GETATTR requests for these new
attributes because they are intended to be used only with CB_GETATTR.
But NFSD has to do something besides crashing if it ever sees such
a request. The correct thing to do is ignore them.

Reported-by: rtm@csail.mit.edu
Closes: https://lore.kernel.org/linux-nfs/7819419cf0cb50d8130dc6b747765d2b8febc88a.camel@kernel.org/T/#t
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 fs/nfsd/nfs4xdr.c | 2 ++
 1 file changed, 2 insertions(+)

Compile-tested only.

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index c0a3c6a7c8bb..97e9e9afa80a 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -3560,6 +3560,8 @@ static const nfsd4_enc_attr nfsd4_enc_fattr4_encode_ops[] = {
 
 	[FATTR4_MODE_UMASK]		= nfsd4_encode_fattr4__noop,
 	[FATTR4_XATTR_SUPPORT]		= nfsd4_encode_fattr4_xattr_support,
+	[FATTR4_TIME_DELEG_ACCESS]	= nfsd4_encode_fattr4__noop,
+	[FATTR4_TIME_DELEG_MODIFY]	= nfsd4_encode_fattr4__noop,
 	[FATTR4_OPEN_ARGUMENTS]		= nfsd4_encode_fattr4_open_arguments,
 };
 
-- 
2.50.0