From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D29D5C04AA7 for ; Mon, 13 May 2019 13:44:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AE07320879 for ; Mon, 13 May 2019 13:44:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729133AbfEMNo6 (ORCPT ); Mon, 13 May 2019 09:44:58 -0400 Received: from fieldses.org ([173.255.197.46]:58336 "EHLO fieldses.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728755AbfEMNo5 (ORCPT ); Mon, 13 May 2019 09:44:57 -0400 Received: by fieldses.org (Postfix, from userid 2815) id 6E19F1DCB; Mon, 13 May 2019 09:44:57 -0400 (EDT) Date: Mon, 13 May 2019 09:44:57 -0400 From: "J. Bruce Fields" To: Jeff Layton Cc: steved@redhat.com, linux-nfs@vger.kernel.org, jfajerski@suse.com Subject: Re: [PATCH] manpage: explain why showmount doesn't really work against a v4-only server Message-ID: <20190513134457.GA13359@fieldses.org> References: <20190510215445.1823-1-jlayton@kernel.org> <20190511135442.GA15721@fieldses.org> <593884facebf2ebcafcbe577845a961abbaa9928.camel@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <593884facebf2ebcafcbe577845a961abbaa9928.camel@kernel.org> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org On Mon, May 13, 2019 at 09:29:42AM -0400, Jeff Layton wrote: > Yeah, that certainly wouldn't hurt. I'd suggest we add that in a > separate patch though. Agreed. > We will need to spell this out in the manpage either way. At least with > ganesha, you can export some filesystems via v3 and others via v4 only, > and the MNT service there will only report the v3 ones. In that case, > you have a reachable service, but the v4-only filesystems will be > missing from showmount's output. That doesn't sound like a great idea to me, but maybe you have no choice if for some reason you want to allow simultaneous support for v3-only clients and for filesystems that require long filehandles? Ugh. Anyway, this kind of warning doesn't have to catch every odd case. --b.