Revert "[PATCH] RPC,NFS: new rpc_pipefs patch"

This reverts 17f4e6febca160a9f9dd4bdece9784577a2f4524 commit.
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index b5b51c1..ab151bb 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -59,7 +59,7 @@
 
 	int			cl_nodelen;	/* nodename length */
 	char 			cl_nodename[UNX_MAXNODENAME];
-	struct dentry *		__cl_parent_dentry;
+	char			cl_pathname[30];/* Path in rpc_pipe_fs */
 	struct dentry *		cl_dentry;	/* inode */
 	struct rpc_clnt *	cl_parent;	/* Points to parent of clones */
 	struct rpc_rtt		cl_rtt_default;
diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
index 63878d0..6392934 100644
--- a/include/linux/sunrpc/rpc_pipe_fs.h
+++ b/include/linux/sunrpc/rpc_pipe_fs.h
@@ -41,11 +41,10 @@
 
 extern int rpc_queue_upcall(struct inode *, struct rpc_pipe_msg *);
 
-extern struct dentry *rpc_mkdir(struct dentry *, char *, struct rpc_clnt *);
-extern void rpc_rmdir(struct dentry *);
-extern struct dentry *rpc_mkpipe(struct dentry *, char *, void *,
-		struct rpc_pipe_ops *, int flags);
-extern void rpc_unlink(struct dentry *);
+extern struct dentry *rpc_mkdir(char *, struct rpc_clnt *);
+extern int rpc_rmdir(char *);
+extern struct dentry *rpc_mkpipe(char *, void *, struct rpc_pipe_ops *, int flags);
+extern int rpc_unlink(char *);
 
 #endif
 #endif