From patchwork Wed Jun 2 06:53:28 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12293183 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 E1B87C4708F for ; Wed, 2 Jun 2021 07:03:35 +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 AD2CD61361 for ; Wed, 2 Jun 2021 07:03:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AD2CD61361 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.135547.251844 (Exim 4.92) (envelope-from ) id 1loKuY-0000u9-4O; Wed, 02 Jun 2021 07:03:30 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 135547.251844; Wed, 02 Jun 2021 07:03:30 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1loKuX-0000tx-W1; Wed, 02 Jun 2021 07:03:29 +0000 Received: by outflank-mailman (input) for mailman id 135547; Wed, 02 Jun 2021 07:03:29 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1loKni-0007A2-6Y for xen-devel@lists.xenproject.org; Wed, 02 Jun 2021 06:56:26 +0000 Received: from bombadil.infradead.org (unknown [2607:7c80:54:e::133]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 35fb7b1f-44c7-4b27-ad45-0306383e6a1a; Wed, 02 Jun 2021 06:55:16 +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 1loKmD-0025eq-Jk; Wed, 02 Jun 2021 06:54:54 +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: 35fb7b1f-44c7-4b27-ad45-0306383e6a1a 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=pV41u4G0u0xaNGxoxDb/eyNeH9eLbF/Aei3AXX+HWdY=; b=xynVkbApPKJ1V6SCFnDhqzTRhk HG0wUR2lljnrg8jjaBi3fB5wReJl4j8YP38RFTuxGHRPiXc3MvRjlT3pljHnX0XyyZXySOVGvD36r Yn+kDsgqGIGCgFW7UzE2sDUrTXFZpZSvReujYSqg/GDnk+jMrGw/l7eQr8EmpYPtyi2dlKoDQZniQ A295rgd6IcGuhT/qNWGyPQm803gvicBX9TIVBVODY+wwREKWrX67HS+VcQ/s9Gl/7xUWi6bQoGvGi xaTI/gKDuismLjMiDlvwEAfqkBTMh3FXwJk3/FqJCq/s8UQ5jthfbUwng9lkO26oujqiNf9SJQcbE JqveapQg==; 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 13/30] sunvdc: use blk_mq_alloc_disk Date: Wed, 2 Jun 2021 09:53:28 +0300 Message-Id: <20210602065345.355274-14-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 --- drivers/block/sunvdc.c | 47 ++++++++++++------------------------------ 1 file changed, 13 insertions(+), 34 deletions(-) diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c index 39aeebc6837d..c53b38578bb7 100644 --- a/drivers/block/sunvdc.c +++ b/drivers/block/sunvdc.c @@ -780,27 +780,6 @@ static const struct blk_mq_ops vdc_mq_ops = { .queue_rq = vdc_queue_rq, }; -static void cleanup_queue(struct request_queue *q) -{ - struct vdc_port *port = q->queuedata; - - blk_cleanup_queue(q); - blk_mq_free_tag_set(&port->tag_set); -} - -static struct request_queue *init_queue(struct vdc_port *port) -{ - struct request_queue *q; - - q = blk_mq_init_sq_queue(&port->tag_set, &vdc_mq_ops, VDC_TX_RING_SIZE, - BLK_MQ_F_SHOULD_MERGE); - if (IS_ERR(q)) - return q; - - q->queuedata = port; - return q; -} - static int probe_disk(struct vdc_port *port) { struct request_queue *q; @@ -838,21 +817,21 @@ static int probe_disk(struct vdc_port *port) (u64)geom.num_sec); } - q = init_queue(port); - if (IS_ERR(q)) { - printk(KERN_ERR PFX "%s: Could not allocate queue.\n", - port->vio.name); - return PTR_ERR(q); - } - g = alloc_disk(1 << PARTITION_SHIFT); - if (!g) { + err = blk_mq_alloc_sq_tag_set(&port->tag_set, &vdc_mq_ops, + VDC_TX_RING_SIZE, BLK_MQ_F_SHOULD_MERGE); + if (err) + return err; + + g = blk_mq_alloc_disk(&port->tag_set, port); + if (IS_ERR(g)) { printk(KERN_ERR PFX "%s: Could not allocate gendisk.\n", port->vio.name); - cleanup_queue(q); - return -ENOMEM; + blk_mq_free_tag_set(&port->tag_set); + return PTR_ERR(g); } port->disk = g; + q = g->queue; /* Each segment in a request is up to an aligned page in size. */ blk_queue_segment_boundary(q, PAGE_SIZE - 1); @@ -862,6 +841,7 @@ static int probe_disk(struct vdc_port *port) blk_queue_max_hw_sectors(q, port->max_xfer_size); g->major = vdc_major; g->first_minor = port->vio.vdev->dev_no << PARTITION_SHIFT; + g->minors = 1 << PARTITION_SHIFT; strcpy(g->disk_name, port->disk_name); g->fops = &vdc_fops; @@ -1083,9 +1063,8 @@ static int vdc_port_remove(struct vio_dev *vdev) del_timer_sync(&port->vio.timer); del_gendisk(port->disk); - cleanup_queue(port->disk->queue); - put_disk(port->disk); - port->disk = NULL; + blk_cleanup_disk(port->disk); + blk_mq_free_tag_set(&port->tag_set); vdc_free_tx_ring(port); vio_ldc_free(&port->vio);