From: Andy Adamson <andros@xxxxxxxxxx>
squash into fdd1e4e137c75a69a274acc680706906c72344e1
NFSv4.1: add MDS mount DS only check
Signed-off-by: Andy Adamson <andros@xxxxxxxxxx>
---
fs/nfs/client.c | 10 ++++------
1 files changed, 4 insertions(+), 6 deletions(-)
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 738f624..6dd50ac 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -1400,12 +1400,6 @@ static int nfs4_set_client(struct nfs_server *server,
goto error;
}
- /* Cannot mount a DS only server */
- if (is_ds_only_client(clp)) {
- error = -ENODEV;
- goto error;
- }
-
/*
* Query for the lease time on clientid setup or renewal
*
@@ -1500,6 +1494,10 @@ static int nfs4_server_common_setup(struct nfs_server *server,
BUG_ON(!server->nfs_client->rpc_ops);
BUG_ON(!server->nfs_client->rpc_ops->file_inode_ops);
+ /* data servers support only a subset of NFSv4.1 */
+ if (is_ds_only_client(server->nfs_client))
+ return -EPROTONOSUPPORT;
+
fattr = nfs_alloc_fattr();
if (fattr == NULL)
return -ENOMEM;
--
1.6.2.5
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