From patchwork Wed Jun 2 06:53:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12293197 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=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 3C043C4708F for ; Wed, 2 Jun 2021 07:03:49 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 098D86135D for ; Wed, 2 Jun 2021 07:03:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 098D86135D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.135567.251916 (Exim 4.92) (envelope-from ) id 1loKuj-0003c0-3h; Wed, 02 Jun 2021 07:03:41 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 135567.251916; Wed, 02 Jun 2021 07:03:40 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1loKui-0003ZG-If; Wed, 02 Jun 2021 07:03:40 +0000 Received: by outflank-mailman (input) for mailman id 135567; Wed, 02 Jun 2021 07:03:37 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1loKn9-0007A2-5X for xen-devel@lists.xenproject.org; Wed, 02 Jun 2021 06:55:51 +0000 Received: from bombadil.infradead.org (unknown [2607:7c80:54:e::133]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id b9185394-a990-477c-9918-92a8993a35e9; Wed, 02 Jun 2021 06:55:06 +0000 (UTC) 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 1loKm2-0025WN-Lj; Wed, 02 Jun 2021 06:54:43 +0000 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: b9185394-a990-477c-9918-92a8993a35e9 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=FS+70uyYe+4tLFvg24eJMtfqOnrP5LJ1R+LEkZqTKlU=; b=XaazqAYB8sweEFqM2vMqm2BF1a 1A6gyISfZs5MiI+w7Ee7x8edliJofVEmh9+Mx86DNUmvx47GaLfDmZ091KW9cpX7wVUeqEGqiRsSr gYH9yuynmotrC/Z84Q1dT3M3+dCa+hte+sWLIalSchRf3P3NlYSXLH8M9Vnytw0SUBcvQc2lsA9Q+ Z+GDx2MIWDM0rBH85AuZdxZFOvz66B5vXQu6l2EaDGdQvxiHVJCR81wkPj1Uh3HkiiJVkksNGRl30 79AcKSm0yUrgNvUfyA9x1cG9jsfkPUkL2zxUXnaTSgmkRfc75N+g558tteVCrwudBz7Eg5HX5gdRp O/xhSQ1g==; 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_Pau_Monn?= =?utf-8?q?=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 10/30] ps3disk: use blk_mq_alloc_disk Date: Wed, 2 Jun 2021 09:53:25 +0300 Message-Id: <20210602065345.355274-11-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-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Use the blk_mq_alloc_disk API to simplify the gendisk and request_queue allocation. Signed-off-by: Christoph Hellwig Tested-by: Geoff Levand --- drivers/block/ps3disk.c | 36 ++++++++++++++---------------------- 1 file changed, 14 insertions(+), 22 deletions(-) diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c index ba3ece56cbb3..f374ea2c67ce 100644 --- a/drivers/block/ps3disk.c +++ b/drivers/block/ps3disk.c @@ -29,7 +29,6 @@ struct ps3disk_private { spinlock_t lock; /* Request queue spinlock */ - struct request_queue *queue; struct blk_mq_tag_set tag_set; struct gendisk *gendisk; unsigned int blocking_factor; @@ -267,7 +266,7 @@ static irqreturn_t ps3disk_interrupt(int irq, void *data) blk_mq_end_request(req, error); spin_unlock(&priv->lock); - blk_mq_run_hw_queues(priv->queue, true); + blk_mq_run_hw_queues(priv->gendisk->queue, true); return IRQ_HANDLED; } @@ -441,17 +440,20 @@ static int ps3disk_probe(struct ps3_system_bus_device *_dev) ps3disk_identify(dev); - queue = blk_mq_init_sq_queue(&priv->tag_set, &ps3disk_mq_ops, 1, + error = blk_mq_alloc_sq_tag_set(&priv->tag_set, &ps3disk_mq_ops, 1, BLK_MQ_F_SHOULD_MERGE); - if (IS_ERR(queue)) { - dev_err(&dev->sbd.core, "%s:%u: blk_mq_init_queue failed\n", - __func__, __LINE__); - error = PTR_ERR(queue); + if (error) goto fail_teardown; + + gendisk = blk_mq_alloc_disk(&priv->tag_set, dev); + if (IS_ERR(gendisk)) { + dev_err(&dev->sbd.core, "%s:%u: blk_mq_alloc_disk failed\n", + __func__, __LINE__); + error = PTR_ERR(gendisk); + goto fail_free_tag_set; } - priv->queue = queue; - queue->queuedata = dev; + queue = gendisk->queue; blk_queue_max_hw_sectors(queue, dev->bounce_size >> 9); blk_queue_dma_alignment(queue, dev->blk_size-1); @@ -462,19 +464,11 @@ static int ps3disk_probe(struct ps3_system_bus_device *_dev) blk_queue_max_segments(queue, -1); blk_queue_max_segment_size(queue, dev->bounce_size); - gendisk = alloc_disk(PS3DISK_MINORS); - if (!gendisk) { - dev_err(&dev->sbd.core, "%s:%u: alloc_disk failed\n", __func__, - __LINE__); - error = -ENOMEM; - goto fail_cleanup_queue; - } - priv->gendisk = gendisk; gendisk->major = ps3disk_major; gendisk->first_minor = devidx * PS3DISK_MINORS; + gendisk->minors = PS3DISK_MINORS; gendisk->fops = &ps3disk_fops; - gendisk->queue = queue; gendisk->private_data = dev; snprintf(gendisk->disk_name, sizeof(gendisk->disk_name), PS3DISK_NAME, devidx+'a'); @@ -490,8 +484,7 @@ static int ps3disk_probe(struct ps3_system_bus_device *_dev) device_add_disk(&dev->sbd.core, gendisk, NULL); return 0; -fail_cleanup_queue: - blk_cleanup_queue(queue); +fail_free_tag_set: blk_mq_free_tag_set(&priv->tag_set); fail_teardown: ps3stor_teardown(dev); @@ -517,9 +510,8 @@ static void ps3disk_remove(struct ps3_system_bus_device *_dev) &ps3disk_mask); mutex_unlock(&ps3disk_mask_mutex); del_gendisk(priv->gendisk); - blk_cleanup_queue(priv->queue); + blk_cleanup_disk(priv->gendisk); blk_mq_free_tag_set(&priv->tag_set); - put_disk(priv->gendisk); dev_notice(&dev->sbd.core, "Synchronizing disk cache\n"); ps3disk_sync_cache(dev); ps3stor_teardown(dev);