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NFSv4.1: add MDS mount DS only check

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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>
This commit is contained in:
Andy Adamson 2011-03-01 01:34:12 +00:00 • committed by Trond Myklebust
parent d6fb79d433
commit 94de8b27d0
2 changed files with 17 additions and 0 deletions
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13
fs/nfs/nfs4_fs.h
View file

@ -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[];