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=-15.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable 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 B1E39C48BE8 for ; Tue, 15 Jun 2021 15:59:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 99AD661606 for ; Tue, 15 Jun 2021 15:59:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232274AbhFOQBI (ORCPT ); Tue, 15 Jun 2021 12:01:08 -0400 Received: from verein.lst.de ([213.95.11.211]:50038 "EHLO verein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231899AbhFOQA1 (ORCPT ); Tue, 15 Jun 2021 12:00:27 -0400 Received: by verein.lst.de (Postfix, from userid 2407) id 757AD67373; Tue, 15 Jun 2021 17:58:17 +0200 (CEST) Date: Tue, 15 Jun 2021 17:58:17 +0200 From: Christoph Hellwig To: Marek Szyprowski Cc: Christoph Hellwig , Jens Axboe , Justin Sanders , Denis Efremov , Josef Bacik , Tim Waugh , Geoff Levand , Ilya Dryomov , "Md. Haris Iqbal" , Jack Wang , "Michael S. Tsirkin" , Jason Wang , Konrad Rzeszutek Wilk , Roger Pau =?iso-8859-1?Q?Monn=E9?= , Mike Snitzer , Maxim Levitsky , Alex Dubov , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , dm-devel@redhat.com, linux-block@vger.kernel.org, nbd@other.debian.org, linuxppc-dev@lists.ozlabs.org, ceph-devel@vger.kernel.org, virtualization@lists.linux-foundation.org, xen-devel@lists.xenproject.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, linux-s390@vger.kernel.org, Bartlomiej Zolnierkiewicz Subject: Re: [PATCH 09/30] mtd_blkdevs: use blk_mq_alloc_disk Message-ID: <20210615155817.GA31047@lst.de> References: <20210602065345.355274-1-hch@lst.de> <20210602065345.355274-10-hch@lst.de> <13b21a07-b7c7-37db-fdc9-77bf174b6f8f@samsung.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <13b21a07-b7c7-37db-fdc9-77bf174b6f8f@samsung.com> User-Agent: Mutt/1.5.17 (2007-11-01) Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Tue, Jun 15, 2021 at 05:47:44PM +0200, Marek Szyprowski wrote: > Hi, > > On 02.06.2021 08:53, Christoph Hellwig wrote: > > Use the blk_mq_alloc_disk API to simplify the gendisk and request_queue > > allocation. > > > > Signed-off-by: Christoph Hellwig > > This patch landed in linux-next as commit 6966bb921def ("mtd_blkdevs: > use blk_mq_alloc_disk"). It causes the following regression on my QEMU > arm64 setup: Please try the patch below: diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index 5dc4c966ea73..6ce4bc57f919 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -382,6 +382,7 @@ int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new) } new->disk = gd; + new->rq = new->disk->queue; gd->private_data = new; gd->major = tr->major; gd->first_minor = (new->devnum) << tr->part_bits;