From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4CA48C07E94 for ; Fri, 4 Jun 2021 13:36:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 203E961008 for ; Fri, 4 Jun 2021 13:36:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230122AbhFDNiS (ORCPT ); Fri, 4 Jun 2021 09:38:18 -0400 Received: from mail.kernel.org ([198.145.29.99]:57350 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230004AbhFDNiS (ORCPT ); Fri, 4 Jun 2021 09:38:18 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 1265B613F9; Fri, 4 Jun 2021 13:36:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1622813780; bh=+PjA/ZBMXZCoThYQZw0o1YAsWQxXDE5Dv6q3hC+0snk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=TB9JzMtG67vssHBSn+DG7i/OA8BADd0qP7/eCYGICJ268ccd+rIzPeNwW2MyhshzJ PC7g6r3DxtVktxAZw/XxNGJYQe9OQ9PaOeWQVwTKg7MZxju3r4AfwSmdweHStxY2Yc /R8EqYubb4nYEiOzOjUBMcSy8MdmukEXULhIGpQo= Date: Fri, 4 Jun 2021 15:36:17 +0200 From: Greg KH To: Hannes Reinecke Cc: Arnd Bergmann , Christoph Hellwig , Jens Axboe , linux-block Subject: Re: [PATCH] remove the raw driver Message-ID: References: <20210531072526.97052-1-hch@lst.de> <3665636f-6a74-e24f-e4b7-ff7790ebb3e4@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3665636f-6a74-e24f-e4b7-ff7790ebb3e4@suse.de> Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Mon, May 31, 2021 at 10:24:33AM +0200, Hannes Reinecke wrote: > On 5/31/21 10:21 AM, Arnd Bergmann wrote: > > On Mon, May 31, 2021 at 9:38 AM Greg KH wrote: > > > > > > On Mon, May 31, 2021 at 10:25:26AM +0300, Christoph Hellwig wrote: > > > > The raw driver used to provide direct unbuffered access to block devices > > > > before O_DIRECT was invented. It has been obsolete for more than a > > > > decade. > > > > > > What? Really? We can finally do this? Yes! > > > > > > For some reason, I thought there was some IBM userspace tools that > > > relied on this device, if not, then great! > > > > > > > Signed-off-by: Christoph Hellwig > > > > > > Acked-by: Greg Kroah-Hartman > > > > Acked-by: Arnd Bergmann > > Link: https://lore.kernel.org/lkml/Pine.LNX.4.64.0703180754060.6605@CPE00045a9c397f-CM001225dbafb6/ > > > > The discussion from 2007 is the last one I could find on lore that has > > useful information on when and why this was not removed in the past. > > The driver was scheduled from a 2005 removal in 2004, but not removed > > because both Red Hat and SuSE relied on the feature in their distros. > > > > From what I could find out, this continued to be the case in Red Hat > > Enterprise Linux 6 and SUSE Linux Enterprise server 11 that were > > supported between 2009 and 2020, but the following versions dropped > > the support. > > > Which I can confirm for SUSE. Thanks, I've queued this up now. greg k-h