From: Yudong Gao Subject: Implementation of delegation Date: Mon, 12 Jul 2010 14:37:29 -0700 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 To: linux-nfs@vger.kernel.org Return-path: Received: from mail-vw0-f46.google.com ([209.85.212.46]:44166 "EHLO mail-vw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752199Ab0GLVhu (ORCPT ); Mon, 12 Jul 2010 17:37:50 -0400 Received: by vws5 with SMTP id 5so4884776vws.19 for ; Mon, 12 Jul 2010 14:37:49 -0700 (PDT) Sender: linux-nfs-owner@vger.kernel.org List-ID: Hi, I am reading the NFS source code of the file open function in kernel 2.6.34, but I cannot find any implementation with delegation to allow client to open a file locally without contacting the server. We are tying to use delegation to do something interesting. So I am wondering how much delegation support specified in the NFS 4.1 protocol is available in the current Linux implementation? Thanks a lot! best, Yudong