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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E33E5CCA479 for ; Wed, 13 Jul 2022 12:19:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236003AbiGMMTP (ORCPT ); Wed, 13 Jul 2022 08:19:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38194 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229613AbiGMMTO (ORCPT ); Wed, 13 Jul 2022 08:19:14 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D3C7DE1E; Wed, 13 Jul 2022 05:19:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=mJjBmMAXT2h6I0nmMQuW56J/7RtTYtOpHF5Tj5AvOWE=; b=WMa19WfnzPViDLABSHs3QnQmSW 4Yn9G+E+X+eHmXygmZ9SJISv+OjO4Uet8m9+0J8uKFMeGLXluy40BJGPVnAieJzm0fn+vmh5jDS9P d3JN2TlJCNWWpUL/PwQSv79shcoOlUdWO8TcM5BkVLX7NU45Y9z78/dU4PHkKFkcIexCFJs2m9R+R RG5tg4d9l0HcbjratWoNf9PCm/ofpp7zdYUZbpwPLjnqq6Y/iHgZMgpPulPD8LAUwZW4PtUZ390qa lAEs/1h8We8KTGbsylxYgERHE/pMWH+Lui46xp88dsXquY86RVjWfA5/O9QucoBk9BC5KebK2lgkR +dJ/tBoA==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1oBbKd-008Alv-T2; Wed, 13 Jul 2022 12:19:07 +0000 Date: Wed, 13 Jul 2022 13:19:07 +0100 From: Matthew Wilcox To: Chaitanya Kulkarni Cc: linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, linux-nvme@lists.infradead.org, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, axboe@kernel.dk, agk@redhat.com, song@kernel.org, djwong@kernel.org, kbusch@kernel.org, hch@lst.de, sagi@grimberg.me, jejb@linux.ibm.com, martin.petersen@oracle.com, viro@zeniv.linux.org.uk, javier@javigon.com, johannes.thumshirn@wdc.com, bvanassche@acm.org, dongli.zhang@oracle.com, ming.lei@redhat.com, jefflexu@linux.alibaba.com, josef@toxicpanda.com, clm@fb.com, dsterba@suse.com, jack@suse.com, tytso@mit.edu, adilger.kernel@dilger.ca, jlayton@kernel.org, idryomov@gmail.com, danil.kipnis@cloud.ionos.com, ebiggers@google.com, jinpu.wang@cloud.ionos.com Subject: Re: [PATCH V2 0/6] block: add support for REQ_OP_VERIFY Message-ID: References: <20220713072019.5885-1-kch@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220713072019.5885-1-kch@nvidia.com> Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Wed, Jul 13, 2022 at 12:20:13AM -0700, Chaitanya Kulkarni wrote: > Hi, > > One of the responsibilities of the Operating System, along with managing > resources, is to provide a unified interface to the user by creating > hardware abstractions. In the Linux Kernel storage stack that > abstraction is created by implementing the generic request operations > such as REQ_OP_READ/REQ_OP_WRITE or REQ_OP_DISCARD/REQ_OP_WRITE_ZEROES, > etc that are mapped to the specific low-level hardware protocol commands > e.g. SCSI or NVMe. Still NAK, see previous thread for reasons. Somewhat disappointing that you sent a new version instead of addressing those comments first.