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=ham 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 072F5C47083 for ; Wed, 2 Jun 2021 07:02:02 +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 C5B1A60FDA for ; Wed, 2 Jun 2021 07:02:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C5B1A60FDA 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=TF1aYSQflu7wA0JZujQcBbyFSPSw+mHg/l+TDu7t19c=; b=cTvFMgz8U9oQ/V SYZ74bPZqnkXNV+korPnE0/pagMqnPLzuOT4RrBJS+QHUCwERRqwQl7adE1WbtrV9wdIHrJFM+3Hi BkfhcfIbvTQ0wXXyH9C8rtrPhY6E61OxW3/eD7Rt+XNRLRMK6GyyZxr/PtnXtbjezeVl/Ssdi3pX1 xbe96EQppuvsMQgwp3CXdttO4uYFgL2gikjFzSGmwppg/B6J8DATbm/K9jyVKsarKQzVGJfQc67yk Ku2iJEsAdimrBtJt6fNQ8WVlLZYavs+fdFs9SZLJKj5C1XbD3mJaG4XLPJsi1DnAmRQDZmqoMD35v gFPlU2vX2dC03tWiYkeQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1loKsB-002986-N4; Wed, 02 Jun 2021 07:01:03 +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 1loKlc-0025MH-2X; Wed, 02 Jun 2021 06:54:16 +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 05/30] pcd: use blk_mq_alloc_disk Date: Wed, 2 Jun 2021 09:53:20 +0300 Message-Id: <20210602065345.355274-6-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 the blk_mq_alloc_disk API to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig --- drivers/block/paride/pcd.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/drivers/block/paride/pcd.c b/drivers/block/paride/pcd.c index 70da8b86ce58..f9cdd11f02f5 100644 --- a/drivers/block/paride/pcd.c +++ b/drivers/block/paride/pcd.c @@ -309,21 +309,19 @@ static void pcd_init_units(void) pcd_drive_count = 0; for (unit = 0, cd = pcd; unit < PCD_UNITS; unit++, cd++) { - struct gendisk *disk = alloc_disk(1); + struct gendisk *disk; - if (!disk) + if (blk_mq_alloc_sq_tag_set(&cd->tag_set, &pcd_mq_ops, 1, + BLK_MQ_F_SHOULD_MERGE)) continue; - disk->queue = blk_mq_init_sq_queue(&cd->tag_set, &pcd_mq_ops, - 1, BLK_MQ_F_SHOULD_MERGE); - if (IS_ERR(disk->queue)) { - disk->queue = NULL; - put_disk(disk); + disk = blk_mq_alloc_disk(&cd->tag_set, cd); + if (IS_ERR(disk)) { + blk_mq_free_tag_set(&cd->tag_set); continue; } INIT_LIST_HEAD(&cd->rq_list); - disk->queue->queuedata = cd; blk_queue_bounce_limit(disk->queue, BLK_BOUNCE_HIGH); cd->disk = disk; cd->pi = &cd->pia; @@ -343,6 +341,7 @@ static void pcd_init_units(void) cd->info.mask = 0; disk->major = major; disk->first_minor = unit; + disk->minors = 1; strcpy(disk->disk_name, cd->name); /* umm... */ disk->fops = &pcd_bdops; disk->flags = GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE; @@ -759,10 +758,8 @@ static int pcd_detect(void) for (unit = 0, cd = pcd; unit < PCD_UNITS; unit++, cd++) { if (!cd->disk) continue; - blk_cleanup_queue(cd->disk->queue); - cd->disk->queue = NULL; + blk_cleanup_disk(cd->disk); blk_mq_free_tag_set(&cd->tag_set); - put_disk(cd->disk); } pi_unregister_driver(par_drv); return -1; -- 2.30.2 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/