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| author | Andy Adamson <andros@netapp.com> | 2011-03-01 01:34:12 +0000 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-03-11 15:38:41 -0500 |
| commit | 94de8b27d0dcb2608d56a7e5c2941b87e6da7ce3 (patch) | |
| tree | bd4b98e229bfbb9d6276e663b2eaca4c70b5bba1 /fs/nfs/client.c | |
| parent | d6fb79d433d0a34c36bdf74eaf90857193a6261f (diff) | |
| download | lwn-94de8b27d0dcb2608d56a7e5c2941b87e6da7ce3.tar.gz lwn-94de8b27d0dcb2608d56a7e5c2941b87e6da7ce3.zip | |
NFSv4.1: add MDS mount DS only check
The DS only role cannot be used to mount.
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/client.c')
| -rw-r--r-- | fs/nfs/client.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/nfs/client.c b/fs/nfs/client.c index 280d41f64a57..d5c5bdfa4231 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -1453,6 +1453,10 @@ 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; |