[PATCH] NFSv4: add declaration of current_stateid

[Ben Dooks <ben.dooks@codethink.co.uk>]

The current_stateid is exported from nfs4state.c but not
declared in any of the headers. Add to nfs4_fs.h to
remove the following warning:

fs/nfs/nfs4state.c:80:20: warning: symbol 'current_stateid' was not declared. Should it be static?

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
---
Cc: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: Anna Schumaker <anna.schumaker@netapp.com>
Cc: linux-nfs@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
 fs/nfs/nfs4_fs.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 16b2e5cc3e94..330f45268060 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -445,6 +445,8 @@ extern void nfs4_set_lease_period(struct nfs_client *clp,
 
 
 /* nfs4state.c */
+extern const nfs4_stateid current_stateid;
+
 const struct cred *nfs4_get_clid_cred(struct nfs_client *clp);
 const struct cred *nfs4_get_machine_cred(struct nfs_client *clp);
 const struct cred *nfs4_get_renew_cred(struct nfs_client *clp);
-- 
2.23.0