SUNRPC: Add an rpc_pipefs front end for the sunrpc cache code

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
index 88332ef..a92571a 100644
--- a/include/linux/sunrpc/rpc_pipe_fs.h
+++ b/include/linux/sunrpc/rpc_pipe_fs.h
@@ -47,6 +47,14 @@
 struct rpc_clnt;
 extern struct dentry *rpc_create_client_dir(struct dentry *, struct qstr *, struct rpc_clnt *);
 extern int rpc_remove_client_dir(struct dentry *);
+
+struct cache_detail;
+extern struct dentry *rpc_create_cache_dir(struct dentry *,
+					   struct qstr *,
+					   mode_t umode,
+					   struct cache_detail *);
+extern void rpc_remove_cache_dir(struct dentry *);
+
 extern struct dentry *rpc_mkpipe(struct dentry *, const char *, void *,
 				 const struct rpc_pipe_ops *, int flags);
 extern int rpc_unlink(struct dentry *);