diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 78508f2..acee327 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -114,6 +114,7 @@
 					   struct nfs_fh *,
 					   struct nfs_fattr *);
 extern void nfs_mark_client_ready(struct nfs_client *clp, int state);
+extern int nfs4_check_client_ready(struct nfs_client *clp);
 #ifdef CONFIG_PROC_FS
 extern int __init nfs_fs_proc_init(void);
 extern void nfs_fs_proc_exit(void);