Date: Tue, 19 Mar 2013 10:50:35 -0400
From: "J. Bruce Fields" <bfields@fieldses.org>
To: "Myklebust, Trond" <Trond.Myklebust@netapp.com>
Cc: "linux-nfs@vger.kernel.org" <linux-nfs@vger.kernel.org>
Subject: Re: [PATCH 10/11] NFSv4.1: Enable open-by-filehandle
Message-ID: <20130319145035.GE7912@fieldses.org>
References: <1363698463-3681-5-git-send-email-Trond.Myklebust@netapp.com>
 <1363698463-3681-6-git-send-email-Trond.Myklebust@netapp.com>
 <1363698463-3681-7-git-send-email-Trond.Myklebust@netapp.com>
 <1363698463-3681-8-git-send-email-Trond.Myklebust@netapp.com>
 <1363698463-3681-9-git-send-email-Trond.Myklebust@netapp.com>
 <1363698463-3681-10-git-send-email-Trond.Myklebust@netapp.com>
 <20130319140901.GB7912@fieldses.org>
 <1363702570.7515.6.camel@leira.trondhjem.org>
 <20130319143236.GD7912@fieldses.org>
 <1363704100.7515.12.camel@leira.trondhjem.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
In-Reply-To: <1363704100.7515.12.camel@leira.trondhjem.org>
Sender: linux-nfs-owner@vger.kernel.org

On Tue, Mar 19, 2013 at 02:41:42PM +0000, Myklebust, Trond wrote:
> On Tue, 2013-03-19 at 10:32 -0400, J. Bruce Fields wrote:
> > (Sorry for the digression, I was just trying to decide whether I can get
> > away with turning on 4.1 by default before implementing SP4_MACH_CRED or
> > GSS on the backchannel....)
> 
> If you don't, could you please at least offer up a module parameter that
> allows me to do that? The current thing is a PITA, since it isn't
> supported by any distro scripts, and it requires you to switch off the
> server in order to change the version pseudofile contents.

The module parameter on its own wouldn't help with that.

We could probably fix the pseudofile interface to allow changing the
version on the fly.

My vague plan was to teach rpc.nfsd to read this (and other parameters)
from a config file, so then it'd be "vi /etc/nfsd && service nfsd
restart" or equivalent.

So is the main thing you want a more convenient interface or a way to
change it without rebooting?

--b.