From patchwork Sat Nov 28 16:14:47 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11937649 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=-16.5 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=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 16C81C63697 for ; Sat, 28 Nov 2020 16:16:22 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id B97882224D for ; Sat, 28 Nov 2020 16:16:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="NketMA/q" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B97882224D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id CDF3D8D001D; Sat, 28 Nov 2020 11:16:03 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id BA3968D0017; Sat, 28 Nov 2020 11:16:03 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A6CB28D001D; Sat, 28 Nov 2020 11:16:03 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0147.hostedemail.com [216.40.44.147]) by kanga.kvack.org (Postfix) with ESMTP id 81F618D0017 for ; Sat, 28 Nov 2020 11:16:03 -0500 (EST) Received: from smtpin06.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 4C6253637 for ; Sat, 28 Nov 2020 16:16:03 +0000 (UTC) X-FDA: 77534328606.06.balls69_19114e327392 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin06.hostedemail.com (Postfix) with ESMTP id 0396E10039819 for ; Sat, 28 Nov 2020 16:16:02 +0000 (UTC) X-HE-Tag: balls69_19114e327392 X-Filterd-Recvd-Size: 3370 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf22.hostedemail.com (Postfix) with ESMTP for ; Sat, 28 Nov 2020 16:16:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; 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=58eRvABQ9wcBaVUecn4OAyBZ+Jv++aJOLsdqKdGeutg=; b=NketMA/qS9o3GPr2SbKJRQmdNq pAtkMDydyPF3ecFOIsS4NbLEEDFNmefQuMBkQit3GpjJKLRxXm8pnvFD3NCyW3+kflIhNBh8C8DQe xjLrMJaAC6hNsYGzFNl9IuapwYcRhReMChdfv7HMgFZ83JP5Vvy0UlYixykYMDKlwKmewLdOSSqz5 mWwZTizFMMlajZWalQr1vYwESDdaWv1WfnpDRlFB9bw8SHbYfmfCPt9+0qfRcmknoOqPtopPUzHDS q+yt+4ZSx0spCtDL7PPF2dD49DtamtSjr+HzjaHpeftqqv6Le/xaG5EzHCP3xl2FTNzfXoAZ1vx6x o5IaGSkA==; Received: from [2001:4bb8:18c:1dd6:48f3:741a:602e:7fdd] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kj2t2-0000Iy-4Q; Sat, 28 Nov 2020 16:15:49 +0000 From: Christoph Hellwig To: Jens Axboe Cc: Tejun Heo , Josef Bacik , Coly Li , Mike Snitzer , Greg Kroah-Hartman , Jan Kara , Johannes Thumshirn , dm-devel@redhat.com, Jan Kara , linux-block@vger.kernel.org, linux-bcache@vger.kernel.org, linux-mtd@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 22/45] block: move bdput() to the callers of __blkdev_get Date: Sat, 28 Nov 2020 17:14:47 +0100 Message-Id: <20201128161510.347752-23-hch@lst.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201128161510.347752-1-hch@lst.de> References: <20201128161510.347752-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: This will allow for a more symmetric calling convention going forward. Signed-off-by: Christoph Hellwig Reviewed-by: Jan Kara Reviewed-by: Hannes Reinecke --- fs/block_dev.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/fs/block_dev.c b/fs/block_dev.c index 0c533ac92e2492..a2d5050c97ee08 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -1462,6 +1462,7 @@ static int __blkdev_get(struct block_device *bdev, struct gendisk *disk, if (!(disk->flags & GENHD_FL_UP) || !bdev->bd_part || !bdev->bd_part->nr_sects) { __blkdev_put(whole, mode, 1); + bdput(whole); ret = -ENXIO; goto out_clear; } @@ -1744,9 +1745,10 @@ static void __blkdev_put(struct block_device *bdev, fmode_t mode, int for_part) disk->fops->release(disk, mode); } mutex_unlock(&bdev->bd_mutex); - bdput(bdev); - if (victim) + if (victim) { __blkdev_put(victim, mode, 1); + bdput(victim); + } } void blkdev_put(struct block_device *bdev, fmode_t mode) @@ -1796,6 +1798,7 @@ void blkdev_put(struct block_device *bdev, fmode_t mode) mutex_unlock(&bdev->bd_mutex); __blkdev_put(bdev, mode, 0); + bdput(bdev); put_disk_and_module(disk); } EXPORT_SYMBOL(blkdev_put);