From 94de8b27d0dcb2608d56a7e5c2941b87e6da7ce3 Mon Sep 17 00:00:00 2001 From: Andy Adamson Date: Tue, 1 Mar 2011 01:34:12 +0000 Subject: NFSv4.1: add MDS mount DS only check The DS only role cannot be used to mount. Signed-off-by: Andy Adamson Signed-off-by: Trond Myklebust --- fs/nfs/nfs4_fs.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'fs/nfs/nfs4_fs.h') diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index 1be36cf65bfc..d4cfacc40003 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -259,6 +259,13 @@ extern int nfs4_proc_destroy_session(struct nfs4_session *); extern int nfs4_init_session(struct nfs_server *server); extern int nfs4_proc_get_lease_time(struct nfs_client *clp, struct nfs_fsinfo *fsinfo); + +static inline bool +is_ds_only_client(struct nfs_client *clp) +{ + return (clp->cl_exchange_flags & EXCHGID4_FLAG_MASK_PNFS) == + EXCHGID4_FLAG_USE_PNFS_DS; +} #else /* CONFIG_NFS_v4_1 */ static inline struct nfs4_session *nfs4_get_session(const struct nfs_server *server) { @@ -276,6 +283,12 @@ static inline int nfs4_init_session(struct nfs_server *server) { return 0; } + +static inline bool +is_ds_only_client(struct nfs_client *clp) +{ + return false; +} #endif /* CONFIG_NFS_V4_1 */ extern const struct nfs4_minor_version_ops *nfs_v4_minor_ops[]; -- cgit v1.2.1