From patchwork Fri May 21 05:51:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12272003 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=-16.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 0CDC3C43470 for ; Fri, 21 May 2021 05:52:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E8078613BD for ; Fri, 21 May 2021 05:52:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235836AbhEUFxy (ORCPT ); Fri, 21 May 2021 01:53:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37352 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235073AbhEUFxj (ORCPT ); Fri, 21 May 2021 01:53:39 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 121F8C06138A; Thu, 20 May 2021 22:52:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=4szuJYmR11pD2G4fH+QS+nxV5W8Ptmu52A+D0MN3nXg=; b=FP2W445ofVpl9uQMnmJieRiFy+ QSv42mqlYEUVOOs+asx3KXcv0geXkpNMKZYXZAXP5p2y5+O45wO/WtFx3rDgToiWABOEyDIVtpmjr nAetv60YXcfz7h3701O7QfQp/Bh4cTEotj4KGj86xIr/Lve1UUvC0q2IezjSHzTn2KDLMeiOuXjg6 +Iw/b/oJzQZCMYctV7ZGw1Y/0OMW33VtBV8Dy8/TxvYxqHcuMiKyU0A8q93uIeEgKcBHabIySrOrl cCkjZfAGYIJjd+8jz6ouAlw4OTY1qfClEpJxeB07hWIxuyvo4rDSuofjhAY5KzCvn1EOjHXQWVmcd uR3swFoA==; Received: from [2001:4bb8:180:5add:4fd7:4137:d2f2:46e6] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94 #2 (Red Hat Linux)) id 1ljy4l-00Gq2r-6Q; Fri, 21 May 2021 05:51:59 +0000 From: Christoph Hellwig To: 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 Cc: 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: [PATCH 13/26] dm: convert to blk_alloc_disk/blk_cleanup_disk Date: Fri, 21 May 2021 07:51:03 +0200 Message-Id: <20210521055116.1053587-14-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210521055116.1053587-1-hch@lst.de> References: <20210521055116.1053587-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org Convert the dm driver to use the blk_alloc_disk and blk_cleanup_disk helpers to simplify gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig --- drivers/md/dm.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-) diff --git a/drivers/md/dm.c b/drivers/md/dm.c index ca2aedd8ee7d..3c7c2d257018 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1801,13 +1801,13 @@ static void cleanup_mapped_device(struct mapped_device *md) md->disk->private_data = NULL; spin_unlock(&_minor_lock); del_gendisk(md->disk); - put_disk(md->disk); } - if (md->queue) { + if (md->queue) dm_queue_destroy_keyslot_manager(md->queue); - blk_cleanup_queue(md->queue); - } + + if (md->disk) + blk_cleanup_disk(md->disk); cleanup_srcu_struct(&md->io_barrier); @@ -1869,13 +1869,10 @@ static struct mapped_device *alloc_dev(int minor) * established. If request-based table is loaded: blk-mq will * override accordingly. */ - md->queue = blk_alloc_queue(numa_node_id); - if (!md->queue) - goto bad; - - md->disk = alloc_disk_node(1, md->numa_node_id); + md->disk = blk_alloc_disk(md->numa_node_id); if (!md->disk) goto bad; + md->queue = md->disk->queue; init_waitqueue_head(&md->wait); INIT_WORK(&md->work, dm_wq_work); @@ -1888,6 +1885,7 @@ static struct mapped_device *alloc_dev(int minor) md->disk->major = _major; md->disk->first_minor = minor; + md->disk->minors = 1; md->disk->fops = &dm_blk_dops; md->disk->queue = md->queue; md->disk->private_data = md;