Commit e3e9d44d authored Jun 16, 2024 by Trond Myklebust Committed by Anna Schumaker Jul 08, 2024

NFSv4: Enable attribute delegations



If we see that the server supports attribute delegations, then request
them by setting the appropriate OPEN arguments.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Lance Shelton <lance.shelton@hammerspace.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

parent dcb3c20f

fs/nfs/nfs4proc.c

+6 −1

Original line number	Diff line number	Diff line
		@@ -1339,8 +1339,13 @@ nfs4_map_atomic_open_share(struct nfs_server *server,
		if (!(server->caps & NFS_CAP_ATOMIC_OPEN_V1))
		goto out;
		/* Want no delegation if we're using O_DIRECT */
		if (openflags & O_DIRECT)
		if (openflags & O_DIRECT) {
		res \|= NFS4_SHARE_WANT_NO_DELEG;
		goto out;
		}
		/* res \|= NFS4_SHARE_WANT_NO_PREFERENCE; */
		if (server->caps & NFS_CAP_DELEGTIME)
		res \|= NFS4_SHARE_WANT_DELEG_TIMESTAMPS;
		out:
		return res;
		}