Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755818AbXFTVDx (ORCPT ); Wed, 20 Jun 2007 17:03:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752570AbXFTVDp (ORCPT ); Wed, 20 Jun 2007 17:03:45 -0400 Received: from zeniv.linux.org.uk ([195.92.253.2]:50566 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752221AbXFTVDo (ORCPT ); Wed, 20 Jun 2007 17:03:44 -0400 Date: Wed, 20 Jun 2007 22:03:43 +0100 From: Al Viro To: "H. Peter Anvin" Cc: Linux Kernel Mailing List , linux-fsdevel@vger.kernel.org, util-linux-ng@vger.kernel.org Subject: Re: Adding subroot information to /proc/mounts, or obtaining that through other means Message-ID: <20070620210343.GQ21478@ftp.linux.org.uk> References: <467994BD.6000403@zytor.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <467994BD.6000403@zytor.com> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 934 Lines: 20 On Wed, Jun 20, 2007 at 01:57:33PM -0700, H. Peter Anvin wrote: > ... or, alternatively, add a subfield to the first field (which would > entail escaping whatever separator we choose): > > /dev/md6 /export ext3 rw,data=ordered 0 0 > /dev/md6:/users/foo /home/foo ext3 rw,data=ordered 0 0 > /dev/md6:/users/bar /home/bar ext3 rw,data=ordered 0 0 Hell, no. The first field is in principle impossible to parse unless you know the fs type. How about making a new file with sane format? From the very beginning. E.g. mountpoint + ID + relative path + type + options, where ID uniquely identifies superblock (e.g. numeric st_dev) and backing device (if any) is sitting among the options... - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/