Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S269900AbTGMPlQ (ORCPT ); Sun, 13 Jul 2003 11:41:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S269912AbTGMPlQ (ORCPT ); Sun, 13 Jul 2003 11:41:16 -0400 Received: from parcelfarce.linux.theplanet.co.uk ([195.92.249.252]:36781 "EHLO www.linux.org.uk") by vger.kernel.org with ESMTP id S269900AbTGMPlP (ORCPT ); Sun, 13 Jul 2003 11:41:15 -0400 Message-ID: <3F118105.8000200@pobox.com> Date: Sun, 13 Jul 2003 11:55:49 -0400 From: Jeff Garzik Organization: none User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2.1) Gecko/20021213 Debian/1.2.1-2.bunk X-Accept-Language: en MIME-Version: 1.0 To: Andreas Dilger CC: Jamie Lokier , Andrew Morton , davej@codemonkey.org.uk, linux-kernel@vger.kernel.org Subject: Re: 2.5 'what to expect' References: <20030711140219.GB16433@suse.de> <20030712152406.GA9521@mail.jlokier.co.uk> <3F103018.6020008@pobox.com> <20030712112722.55f80b60.akpm@osdl.org> <20030712183929.GA10450@mail.jlokier.co.uk> <3F105B9A.7070803@pobox.com> <20030712193401.GD10450@mail.jlokier.co.uk> <3F1063AD.40206@pobox.com> <20030712194624.GF10450@mail.jlokier.co.uk> <20030713085118.V4482@schatzie.adilger.int> In-Reply-To: <20030713085118.V4482@schatzie.adilger.int> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 996 Lines: 34 Andreas Dilger wrote: > On Jul 12, 2003 20:46 +0100, Jamie Lokier wrote: > >>Jeff Garzik wrote: >> >>>Jamie Lokier wrote: >>> >>>>2.4 fails on write()? A strace of "rpm --rebuilddb" shows it is >>>>opening with O_DIRECT and writing just fine. Or does that only work >>>>with RedHat's 2.4 kernels? >>> >>>Are you testing on a filesystem where an O_DIRECT is not supported? >>>The "it works" case is not an issue. >> >>ext3. > > > ext3 in 2.4 kernels does not support O_DIRECT. To confuse matters, > recent RH kernels silently ignore O_DIRECT if you are not root, so > you may think O_DIRECT is being used, but it isn't. ahhh, that's probably what is going on. I was thinking only of stock 2.4 behavior (open succeeds, write fails). Jeff - 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/