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=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, 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 C5F41C47083 for ; Wed, 2 Jun 2021 07:27:02 +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 6D287611CA for ; Wed, 2 Jun 2021 07:27:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6D287611CA 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-mtd-bounces+linux-mtd=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:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=mjM6gkSGLmIydj7TWtDwjKrNuDXLqKBgPBHSVP98nO8=; b=Idow6/r3ye6M9R GIFKh3skBbEtjBjNriBms8/93OhCo+GSYPajwR3d6duzZ/CV05c2eA1tqYFGnEPABRb/dSz+sdyZm ahUU4opTxMpuFVg9WeIQVTmfIs2dLVo7IGitMPz1FOKpesnF1SMgZiIkh/sbQzA36dFnbKI7lfQWW ytd/2EDOFl7k5Fi/NSgYOSx9Dg5xBVdcXAtrTk8cVwpHcxedhkzhad6RyOBFmxwMbeVovrFOhc6/5 2SZXK8EkVxWmlFQt90nQI/Y3kc0Da6m7FgZuaAr7krR4j5slJjRfQW3XQTb65GyrLReCsAuZYxLC3 lS+KbSCyoibD9/ilgTlw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1loLGl-002I1w-W6; Wed, 02 Jun 2021 07:26:28 +0000 Received: from shol69.static.otenet.gr ([83.235.170.67] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1loKma-0025sw-BW; Wed, 02 Jun 2021 06:55:17 +0000 From: Christoph Hellwig To: Jens Axboe Cc: 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 , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= , 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 Subject: [PATCH 18/30] loop: use blk_mq_alloc_disk and blk_cleanup_disk Date: Wed, 2 Jun 2021 09:53:33 +0300 Message-Id: <20210602065345.355274-19-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210602065345.355274-1-hch@lst.de> References: <20210602065345.355274-1-hch@lst.de> MIME-Version: 1.0 X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig --- drivers/block/loop.c | 19 ++++++------------- 1 file changed, 6 insertions(+), 13 deletions(-) diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 95c570f5923f..3f40e673a101 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -2117,12 +2117,12 @@ static int loop_add(struct loop_device **l, int i) if (err) goto out_free_idr; - lo->lo_queue = blk_mq_init_queue(&lo->tag_set); - if (IS_ERR(lo->lo_queue)) { - err = PTR_ERR(lo->lo_queue); + disk = lo->lo_disk = blk_mq_alloc_disk(&lo->tag_set, lo); + if (IS_ERR(disk)) { + err = PTR_ERR(disk); goto out_cleanup_tags; } - lo->lo_queue->queuedata = lo; + lo->lo_queue = lo->lo_disk->queue; blk_queue_max_hw_sectors(lo->lo_queue, BLK_DEF_MAX_SECTORS); @@ -2134,11 +2134,6 @@ static int loop_add(struct loop_device **l, int i) */ blk_queue_flag_set(QUEUE_FLAG_NOMERGES, lo->lo_queue); - err = -ENOMEM; - disk = lo->lo_disk = alloc_disk(1 << part_shift); - if (!disk) - goto out_free_queue; - /* * Disable partition scanning by default. The in-kernel partition * scanning can be requested individually per-device during its @@ -2166,6 +2161,7 @@ static int loop_add(struct loop_device **l, int i) spin_lock_init(&lo->lo_lock); disk->major = LOOP_MAJOR; disk->first_minor = i << part_shift; + disk->minors = 1 << part_shift; disk->fops = &lo_fops; disk->private_data = lo; disk->queue = lo->lo_queue; @@ -2174,8 +2170,6 @@ static int loop_add(struct loop_device **l, int i) *l = lo; return lo->lo_number; -out_free_queue: - blk_cleanup_queue(lo->lo_queue); out_cleanup_tags: blk_mq_free_tag_set(&lo->tag_set); out_free_idr: @@ -2189,9 +2183,8 @@ static int loop_add(struct loop_device **l, int i) static void loop_remove(struct loop_device *lo) { del_gendisk(lo->lo_disk); - blk_cleanup_queue(lo->lo_queue); blk_mq_free_tag_set(&lo->tag_set); - put_disk(lo->lo_disk); + blk_cleanup_disk(lo->lo_disk); mutex_destroy(&lo->lo_mutex); kfree(lo); } -- 2.30.2 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/