Re: [nfsv4] changing fileid of a file during a mount

bfields@fieldses.org (J. Bruce Fields) Fri, 09 March 2018 15:56 UTC

Return-Path: <bfields@fieldses.org>
X-Original-To: nfsv4@ietfa.amsl.com
Delivered-To: nfsv4@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3C93B126D85 for <nfsv4@ietfa.amsl.com>; Fri, 9 Mar 2018 07:56:09 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.91
X-Spam-Level:
X-Spam-Status: No, score=-1.91 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id PlY6V3Ty9A5I for <nfsv4@ietfa.amsl.com>; Fri, 9 Mar 2018 07:56:07 -0800 (PST)
Received: from fieldses.org (fieldses.org [173.255.197.46]) by ietfa.amsl.com (Postfix) with ESMTP id 939E2120713 for <nfsv4@ietf.org>; Fri, 9 Mar 2018 07:56:07 -0800 (PST)
Received: by fieldses.org (Postfix, from userid 2815) id C2DB02056; Fri, 9 Mar 2018 10:55:36 -0500 (EST)
Date: Fri, 09 Mar 2018 10:55:36 -0500
To: Olga Kornievskaia <aglo@umich.edu>
Cc: nfsv4@ietf.org
Message-ID: <20180309155536.GA5624@fieldses.org>
References: <CAN-5tyEce2x+e6AuYi7vBC-=5nOPvtEbTD1VvLYA_Q9VBcW0fA@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Disposition: inline
In-Reply-To: <CAN-5tyEce2x+e6AuYi7vBC-=5nOPvtEbTD1VvLYA_Q9VBcW0fA@mail.gmail.com>
User-Agent: Mutt/1.5.21 (2010-09-15)
From: bfields@fieldses.org
Archived-At: <https://mailarchive.ietf.org/arch/msg/nfsv4/kHpnPIy9sJvF1yENk5WqtsGYjsA>
Subject: Re: [nfsv4] changing fileid of a file during a mount
X-BeenThere: nfsv4@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: NFSv4 Working Group <nfsv4.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/nfsv4>, <mailto:nfsv4-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/nfsv4/>
List-Post: <mailto:nfsv4@ietf.org>
List-Help: <mailto:nfsv4-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/nfsv4>, <mailto:nfsv4-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 09 Mar 2018 15:56:09 -0000

On Thu, Mar 08, 2018 at 05:17:03PM -0500, Olga Kornievskaia wrote:
> Is it allowed that the server changes a fileid of a file on a mounted
> file system?

I think the relevant spec language is:

	https://tools.ietf.org/html/rfc7530#section-10.3.4

	If GETATTR directed to the two filehandles returns different
	values for the fileid attribute, then they are distinct objects.

--b.