From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4A2C16D00 for ; Mon, 24 May 2021 07:24:59 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id 08B3867373; Mon, 24 May 2021 09:24:57 +0200 (CEST) Date: Mon, 24 May 2021 09:24:56 +0200 From: Christoph Hellwig To: Hannes Reinecke Cc: Christoph Hellwig , Jens Axboe , Geert Uytterhoeven , Chris Zankel , Max Filippov , Philipp Reisner , Lars Ellenberg , Jim Paris , Joshua Morris , Philip Kelleher , Minchan Kim , Nitin Gupta , Matias Bjorling , Coly Li , Mike Snitzer , Song Liu , Maxim Levitsky , Alex Dubov , Ulf Hansson , Dan Williams , Vishal Verma , Dave Jiang , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , linux-block@vger.kernel.org, dm-devel@redhat.com, linux-m68k@lists.linux-m68k.org, linux-xtensa@linux-xtensa.org, drbd-dev@lists.linbit.com, linuxppc-dev@lists.ozlabs.org, linux-bcache@vger.kernel.org, linux-raid@vger.kernel.org, linux-mmc@vger.kernel.org, nvdimm@lists.linux.dev, linux-nvme@lists.infradead.org, linux-s390@vger.kernel.org Subject: Re: [PATCH 06/26] brd: convert to blk_alloc_disk/blk_cleanup_disk Message-ID: <20210524072456.GD23890@lst.de> References: <20210521055116.1053587-1-hch@lst.de> <20210521055116.1053587-7-hch@lst.de> <83fc5cdc-53ed-0bd3-fbe8-93d0afd20771@suse.de> X-Mailing-List: nvdimm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <83fc5cdc-53ed-0bd3-fbe8-93d0afd20771@suse.de> User-Agent: Mutt/1.5.17 (2007-11-01) On Sun, May 23, 2021 at 09:58:48AM +0200, Hannes Reinecke wrote: >> + /* >> + * This is so fdisk will align partitions on 4k, because of >> + * direct_access API needing 4k alignment, returning a PFN >> + * (This is only a problem on very small devices <= 4M, >> + * otherwise fdisk will align on 1M. Regardless this call >> + * is harmless) >> + */ >> + blk_queue_physical_block_size(disk->queue, PAGE_SIZE); >> > > Maybe converting the comment to refer to 'PAGE_SIZE' instead of 4k while > you're at it ... I really do not want to touch these kinds of unrelated things here. 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=-5.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 63B34C04FF3 for ; Mon, 24 May 2021 22:38:00 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id EDAE5613EC for ; Mon, 24 May 2021 22:37:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EDAE5613EC Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=5tODVTRCEKvWzPsWhyO+gBv8MFrzz2+1ymh/x9x+oSk=; b=dwJ8coGAidvZzE gdR+kXZ0HW4vFVcgpciRl8MnxiejioSSJ0YeYrNXGntJdgyt7syn8EyeZHdfL3VvK4WcgSs6nmIwD N463a33qOUo+HERWlAJobiEzyCQuolS1PzzwUB9BDKT64C48gHejbjlQObY0bk49NYPFbTKNTvq6/ 5JhfBZxwAnJbtnIAGyGiFazE92FNhsm/DRfqZRjxkKKiVz4B+UtEp+B41oIWFzXb2CF6Dup9GOxA1 HCL+WuTyAoQySIxxGSt+HiEZe9b+XrvNAqIzRfSePKSq9dM9CmgNyIXylTH6z7zRZiIMndzQqXUvb E1rZFWuCFabEjtjbA5lw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1llJCX-002A5Y-OC; Mon, 24 May 2021 22:37:33 +0000 Received: from verein.lst.de ([213.95.11.211]) by bombadil.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1ll4xP-000k2Z-20 for linux-nvme@lists.infradead.org; Mon, 24 May 2021 07:25:00 +0000 Received: by verein.lst.de (Postfix, from userid 2407) id 08B3867373; Mon, 24 May 2021 09:24:57 +0200 (CEST) Date: Mon, 24 May 2021 09:24:56 +0200 From: Christoph Hellwig To: Hannes Reinecke Cc: Christoph Hellwig , Jens Axboe , Geert Uytterhoeven , Chris Zankel , Max Filippov , Philipp Reisner , Lars Ellenberg , Jim Paris , Joshua Morris , Philip Kelleher , Minchan Kim , Nitin Gupta , Matias Bjorling , Coly Li , Mike Snitzer , Song Liu , Maxim Levitsky , Alex Dubov , Ulf Hansson , Dan Williams , Vishal Verma , Dave Jiang , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , linux-block@vger.kernel.org, dm-devel@redhat.com, linux-m68k@lists.linux-m68k.org, linux-xtensa@linux-xtensa.org, drbd-dev@lists.linbit.com, linuxppc-dev@lists.ozlabs.org, linux-bcache@vger.kernel.org, linux-raid@vger.kernel.org, linux-mmc@vger.kernel.org, nvdimm@lists.linux.dev, linux-nvme@lists.infradead.org, linux-s390@vger.kernel.org Subject: Re: [PATCH 06/26] brd: convert to blk_alloc_disk/blk_cleanup_disk Message-ID: <20210524072456.GD23890@lst.de> References: <20210521055116.1053587-1-hch@lst.de> <20210521055116.1053587-7-hch@lst.de> <83fc5cdc-53ed-0bd3-fbe8-93d0afd20771@suse.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <83fc5cdc-53ed-0bd3-fbe8-93d0afd20771@suse.de> 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-20210524_002459_269139_065C9129 X-CRM114-Status: GOOD ( 14.41 ) X-Mailman-Approved-At: Mon, 24 May 2021 11:59:45 -0700 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On Sun, May 23, 2021 at 09:58:48AM +0200, Hannes Reinecke wrote: >> + /* >> + * This is so fdisk will align partitions on 4k, because of >> + * direct_access API needing 4k alignment, returning a PFN >> + * (This is only a problem on very small devices <= 4M, >> + * otherwise fdisk will align on 1M. Regardless this call >> + * is harmless) >> + */ >> + blk_queue_physical_block_size(disk->queue, PAGE_SIZE); >> > > Maybe converting the comment to refer to 'PAGE_SIZE' instead of 4k while > you're at it ... I really do not want to touch these kinds of unrelated things here. _______________________________________________ Linux-nvme mailing list Linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme 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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 BB9C2C04FF3 for ; Mon, 24 May 2021 07:25:25 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 242AB61153 for ; Mon, 24 May 2021 07:25:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 242AB61153 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4FpTJM4sY1z3bsS for ; Mon, 24 May 2021 17:25:23 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lst.de (client-ip=213.95.11.211; helo=verein.lst.de; envelope-from=hch@lst.de; receiver=) Received: from verein.lst.de (verein.lst.de [213.95.11.211]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4FpTHw3gzJz2xZH for ; Mon, 24 May 2021 17:25:00 +1000 (AEST) Received: by verein.lst.de (Postfix, from userid 2407) id 08B3867373; Mon, 24 May 2021 09:24:57 +0200 (CEST) Date: Mon, 24 May 2021 09:24:56 +0200 From: Christoph Hellwig To: Hannes Reinecke Subject: Re: [PATCH 06/26] brd: convert to blk_alloc_disk/blk_cleanup_disk Message-ID: <20210524072456.GD23890@lst.de> References: <20210521055116.1053587-1-hch@lst.de> <20210521055116.1053587-7-hch@lst.de> <83fc5cdc-53ed-0bd3-fbe8-93d0afd20771@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <83fc5cdc-53ed-0bd3-fbe8-93d0afd20771@suse.de> User-Agent: Mutt/1.5.17 (2007-11-01) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: nvdimm@lists.linux.dev, Ulf Hansson , Mike Snitzer , linux-nvme@lists.infradead.org, Song Liu , dm-devel@redhat.com, linux-bcache@vger.kernel.org, Joshua Morris , drbd-dev@lists.linbit.com, linux-s390@vger.kernel.org, Dave Jiang , Maxim Levitsky , Vishal Verma , Christoph Hellwig , Christian Borntraeger , Geert Uytterhoeven , Matias Bjorling , Nitin Gupta , Vasily Gorbik , linux-xtensa@linux-xtensa.org, Alex Dubov , Heiko Carstens , Coly Li , linux-block@vger.kernel.org, linux-m68k@lists.linux-m68k.org, Philip Kelleher , Dan Williams , Jens Axboe , Chris Zankel , linux-raid@vger.kernel.org, Max Filippov , linux-mmc@vger.kernel.org, Philipp Reisner , Jim Paris , Minchan Kim , Lars Ellenberg , linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Sun, May 23, 2021 at 09:58:48AM +0200, Hannes Reinecke wrote: >> + /* >> + * This is so fdisk will align partitions on 4k, because of >> + * direct_access API needing 4k alignment, returning a PFN >> + * (This is only a problem on very small devices <= 4M, >> + * otherwise fdisk will align on 1M. Regardless this call >> + * is harmless) >> + */ >> + blk_queue_physical_block_size(disk->queue, PAGE_SIZE); >> > > Maybe converting the comment to refer to 'PAGE_SIZE' instead of 4k while > you're at it ... I really do not want to touch these kinds of unrelated things here. 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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 2D422C04FF3 for ; Mon, 24 May 2021 07:25:18 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AEC96611AC for ; Mon, 24 May 2021 07:25:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AEC96611AC Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=tempfail smtp.mailfrom=dm-devel-bounces@redhat.com Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-5-iwRNX5gDM_2P1B5dGV5cQQ-1; Mon, 24 May 2021 03:25:14 -0400 X-MC-Unique: iwRNX5gDM_2P1B5dGV5cQQ-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 8FB00180FD65; Mon, 24 May 2021 07:25:09 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.21]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 46E031800B; Mon, 24 May 2021 07:25:09 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id 15BFA55343; Mon, 24 May 2021 07:25:09 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id 14O7P69p012467 for ; Mon, 24 May 2021 03:25:07 -0400 Received: by smtp.corp.redhat.com (Postfix) id C719A43669; Mon, 24 May 2021 07:25:06 +0000 (UTC) Received: from mimecast-mx02.redhat.com (mimecast01.extmail.prod.ext.rdu2.redhat.com [10.11.55.17]) by smtp.corp.redhat.com (Postfix) with ESMTPS id C1E5B43683 for ; Mon, 24 May 2021 07:25:04 +0000 (UTC) Received: from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com [207.211.31.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 3C52D9124FF for ; Mon, 24 May 2021 07:25:04 +0000 (UTC) Received: from verein.lst.de (verein.lst.de [213.95.11.211]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-119-uw85zyq_Pouu5thFN2HdRQ-1; Mon, 24 May 2021 03:24:59 -0400 X-MC-Unique: uw85zyq_Pouu5thFN2HdRQ-1 Received: by verein.lst.de (Postfix, from userid 2407) id 08B3867373; Mon, 24 May 2021 09:24:57 +0200 (CEST) Date: Mon, 24 May 2021 09:24:56 +0200 From: Christoph Hellwig To: Hannes Reinecke Message-ID: <20210524072456.GD23890@lst.de> References: <20210521055116.1053587-1-hch@lst.de> <20210521055116.1053587-7-hch@lst.de> <83fc5cdc-53ed-0bd3-fbe8-93d0afd20771@suse.de> MIME-Version: 1.0 In-Reply-To: <83fc5cdc-53ed-0bd3-fbe8-93d0afd20771@suse.de> User-Agent: Mutt/1.5.17 (2007-11-01) X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-loop: dm-devel@redhat.com Cc: nvdimm@lists.linux.dev, Ulf Hansson , Mike Snitzer , linux-m68k@vger.kernel.org, linux-nvme@lists.infradead.org, Song Liu , dm-devel@redhat.com, Joshua Morris , linux-s390@vger.kernel.org, Dave Jiang , Maxim Levitsky , Vishal Verma , Christoph Hellwig , Christian Borntraeger , Geert Uytterhoeven , Matias Bjorling , Nitin Gupta , Vasily Gorbik , linux-xtensa@linux-xtensa.org, Alex Dubov , Heiko Carstens , Coly Li , linux-block@vger.kernel.org, linux-bcache@vger.kernel.org, drbd-dev@tron.linbit.com, Philip Kelleher , Dan Williams , Jens Axboe , Chris Zankel , linux-raid@vger.kernel.org, Max Filippov , linux-mmc@vger.kernel.org, Philipp Reisner , Jim Paris , Minchan Kim , Lars Ellenberg , linuxppc-dev@lists.ozlabs.org Subject: Re: [dm-devel] [PATCH 06/26] brd: convert to blk_alloc_disk/blk_cleanup_disk X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dm-devel-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Disposition: inline Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit On Sun, May 23, 2021 at 09:58:48AM +0200, Hannes Reinecke wrote: >> + /* >> + * This is so fdisk will align partitions on 4k, because of >> + * direct_access API needing 4k alignment, returning a PFN >> + * (This is only a problem on very small devices <= 4M, >> + * otherwise fdisk will align on 1M. Regardless this call >> + * is harmless) >> + */ >> + blk_queue_physical_block_size(disk->queue, PAGE_SIZE); >> > > Maybe converting the comment to refer to 'PAGE_SIZE' instead of 4k while > you're at it ... I really do not want to touch these kinds of unrelated things here. -- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel