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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 447F4C25B76 for ; Wed, 5 Jun 2024 08:31:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=lxpLXdra+9pecKklrCgmBSLbVAd/IGLWXeR6ZOSOT6w=; b=DpfXMYWjL4u3Bj4xGYkpZHEgb7 WmYGZmywgwmcMO2RphhR6jgUwJeP8vDZEiEtY6JzjyPHwf7JrzE7c6aDCvgY0+mnrgx4GDunBZ2xC qIJ81W2pS+nrW24EhY4ZB/NgIvZo7mWnHtGK+x9XP2n5+3ZFPBCxuazQpscD6YJoxAD0Zl9A1MFvC KOLvyKkJBMGuObL4iodTnPTrStwQ6DzChSfNy7kZTrlixtZm6zU20qHW3tKKk72KZE27cSHiLFL4c 8u+VS9ER6AZ3ZihPHKFvKAzYj3KaLta+8RRNiql59zj+JYE3p4zaSJnS90u7gT6jzMK960Mf22DFD MCn1ldeg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sEm3f-00000005Diz-1jh6; Wed, 05 Jun 2024 08:31:47 +0000 Received: from verein.lst.de ([213.95.11.211]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sEm3c-00000005DhW-2AIG for linux-nvme@lists.infradead.org; Wed, 05 Jun 2024 08:31:45 +0000 Received: by verein.lst.de (Postfix, from userid 2407) id A2C0A227A8E; Wed, 5 Jun 2024 10:31:41 +0200 (CEST) Date: Wed, 5 Jun 2024 10:31:40 +0200 From: Christoph Hellwig To: Hannes Reinecke Cc: John Garry , axboe@kernel.dk, kbusch@kernel.org, hch@lst.de, sagi@grimberg.me, jejb@linux.ibm.com, martin.petersen@oracle.com, djwong@kernel.org, viro@zeniv.linux.org.uk, brauner@kernel.org, dchinner@redhat.com, jack@suse.cz, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, linux-fsdevel@vger.kernel.org, tytso@mit.edu, jbongio@google.com, linux-scsi@vger.kernel.org, ojaswin@linux.ibm.com, linux-aio@kvack.org, linux-btrfs@vger.kernel.org, io-uring@vger.kernel.org, nilay@linux.ibm.com, ritesh.list@gmail.com, willy@infradead.org, Himanshu Madhani Subject: Re: [PATCH v7 4/9] block: Add core atomic write support Message-ID: <20240605083140.GB20984@lst.de> References: <20240602140912.970947-1-john.g.garry@oracle.com> <20240602140912.970947-5-john.g.garry@oracle.com> <749f9615-2fd2-49a3-9c9e-c725cb027ad3@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240605_013144_738211_C7A7AF7C X-CRM114-Status: GOOD ( 10.85 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On Mon, Jun 03, 2024 at 02:31:04PM +0200, Hannes Reinecke wrote: > We currently use chunk_sectors for quite some different things, most > notably zones boundaries, NIOIB, raid stripes etc. > So I don't have an issue adding another use-case for it. So as zone as a device supports atomic/untorn writes you limit all I/O including reads to the boundaries? I can't see how that would ever make sense.