From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751543AbZHLVdu (ORCPT ); Wed, 12 Aug 2009 17:33:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751476AbZHLVdt (ORCPT ); Wed, 12 Aug 2009 17:33:49 -0400 Received: from metis.ext.pengutronix.de ([92.198.50.35]:50692 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750868AbZHLVdt (ORCPT ); Wed, 12 Aug 2009 17:33:49 -0400 Date: Wed, 12 Aug 2009 23:33:48 +0200 From: Robert Schwebel To: Greg KH Cc: linux-kernel@vger.kernel.org, Kay Sievers , Jan Blunck , gregkh@suse.de, Harald Hoyer , Scott James Remnant Subject: Re: [PATCH] Driver Core: devtmpfs - kernel-maintained tmpfs-based /dev Message-ID: <20090812213348.GY13320@pengutronix.de> References: <20090805171513.GA10443@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: <20090805171513.GA10443@kroah.com> X-Sent-From: Pengutronix Entwicklungszentrum Nord - Hildesheim X-URL: http://www.pengutronix.de/ X-IRC: #ptxdist @freenode X-Accept-Language: de,en X-Accept-Content-Type: text/plain X-Impressum: Pengutronix - Linux Solutions for Science and Industry Handelsregister: Amtsgericht Hildesheim, HRA 2686 Peiner Strasse 6-8, 31137 Hildesheim, Germany Phone: +49-5121-206917-0 | Fax: +49-5121-206917-5555 Inhaber: Dipl.-Ing. Robert Schwebel X-Message-Flag: See Message Headers for Impressum X-Uptime: 23:29:39 up 7 days, 8:48, 11 users, load average: 0.00, 0.00, 0.00 User-Agent: Mutt/1.5.18 (2008-05-17) X-SA-Exim-Connect-IP: 2001:6f8:1178:2:215:17ff:fe12:23b0 X-SA-Exim-Mail-From: rsc@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Aug 05, 2009 at 10:15:13AM -0700, Greg KH wrote: > Here's the devtmpfs patch again. As an embedded distro maintainer, I'd really like such an approach. With ptxdist, we can today build the complete rootfs for an embedded system without root permissions - just if we want to nfs-root boot the boards during development, it doesn't work, because you have to create /dev/console, /dev/null and /dev/zero and that works only for root. On slow embedded systems (i.e. ARM 200 MHz), note that boot times are often much slower than on full-blown x86. So any speed improvement is welcome here as well. rsc -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |