[PATCH 2/4] SQUASHME: NFSv4.1: DS only check

[andros@netapp.com]

From: Andy Adamson <andros@netapp.com>

squash into fdd1e4e137c75a69a274acc680706906c72344e1
NFSv4.1: add MDS mount DS only check

Signed-off-by: Andy Adamson <andros@netapp.com>
---
 fs/nfs/client.c    |   10 ++++------
 fs/nfs/nfs4state.c |    2 +-
 2 files changed, 5 insertions(+), 7 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;
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 6da026a..0021f40 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -153,7 +153,7 @@ static int nfs41_setup_state_renewal(struct nfs_client *clp)
 	int status;
 	struct nfs_fsinfo fsinfo;
 
-	if (!test_bit(NFS_CS_CHECK_LEASE_TIME, &clp->cl_res_state)) {
+	if (!test_bit(NFS_CS_CHECK_LEASE_TIME, &clp->cl_res_state))
 		nfs4_schedule_state_renewal(clp);
 		return 0;
 	}
-- 
1.7.3.1