From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 3 Jul 2001 05:48:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 3 Jul 2001 05:48:21 -0400 Received: from nat-pool-meridian.redhat.com ([199.183.24.200]:8174 "EHLO devserv.devel.redhat.com") by vger.kernel.org with ESMTP id ; Tue, 3 Jul 2001 05:48:14 -0400 Date: Tue, 3 Jul 2001 10:42:53 +0100 From: "Stephen C. Tweedie" To: Dan Kegel Cc: "linux-kernel@vger.kernel.org" , Stephen Tweedie Subject: Re: O_DIRECT please; Sybase 12.5 Message-ID: <20010703104253.B29868@redhat.com> In-Reply-To: <3B3C4CB4.6B3D2B2F@kegel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <3B3C4CB4.6B3D2B2F@kegel.com>; from dank@kegel.com on Fri, Jun 29, 2001 at 02:39:00AM -0700 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, On Fri, Jun 29, 2001 at 02:39:00AM -0700, Dan Kegel wrote: > It supports raw partitions, which is good; that might satisfy my > boss (although the administration will be a pain, and I'm not > sure whether it's really supported by Dell RAID devices). All block devices support raw IO --- the raw IO mechanism talks to the device driver through the normal kernel-internal block IO entry points. > I'd prefer O_DIRECT :-( Andrea Arcangeli has already posted patches you can try for ext2. The functionality isn't in the mainline kernel yet, though. --Stephen