From patchwork Sat Nov 28 16:14:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11937643 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 7B302C63777 for ; Sat, 28 Nov 2020 16:16:14 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 25332246C0 for ; Sat, 28 Nov 2020 16:16:14 +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="YCL5FH8M" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 25332246C0 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 9D0BF8D001A; Sat, 28 Nov 2020 11:15:56 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 9599A8D001B; Sat, 28 Nov 2020 11:15:56 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7AA2F8D001A; Sat, 28 Nov 2020 11:15:56 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 602218D0017 for ; Sat, 28 Nov 2020 11:15:56 -0500 (EST) Received: from smtpin28.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 2ED28824999B for ; Sat, 28 Nov 2020 16:15:56 +0000 (UTC) X-FDA: 77534328312.28.spy29_3117ff627392 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin28.hostedemail.com (Postfix) with ESMTP id 0C8276C3B for ; Sat, 28 Nov 2020 16:15:56 +0000 (UTC) X-HE-Tag: spy29_3117ff627392 X-Filterd-Recvd-Size: 3432 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf24.hostedemail.com (Postfix) with ESMTP for ; Sat, 28 Nov 2020 16:15:55 +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=vZ+otfYsHp/5sXLwka7CjsX7ANnZwDehRGIR4ErlsRo=; b=YCL5FH8MEXmod6g3jd1iMhvYAp r+bAbhViZpySQ0LZ/4JWGmSi9cw+X5fkO6HG9IeN5Nviz2tqj2MtFnQUpczX1hjQln47u+pCl1W/o r8Wl7DeAHeHOTcBCxvqF6ux0ARYgITzWcjIlR1flsFzf6uYZ2HKWMcU9FIYUDN5XdFlefe0Pkq9rD V5IPZryzeFJg416Ba+u4n1dnP/CQ6nTtjDsG7DTRYjJAi/4zyRJgYFOH+udtU0EKVQlAvrcXzv+Pw +Gpp8a8dnYj2O0GN5CbPdwHF5rbNpeCR9b6Ggu7ZoPyWMrWOn3wIODIRZGPtaNnoPm/zh1C80d+5c vJn6pwGA==; 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 1kj2sy-0000Hf-23; Sat, 28 Nov 2020 16:15:44 +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 20/45] block: refactor __blkdev_put Date: Sat, 28 Nov 2020 17:14:45 +0100 Message-Id: <20201128161510.347752-21-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: Reorder the code to have one big section for the last close, and to use bdev_is_partition. Signed-off-by: Christoph Hellwig Reviewed-by: Greg Kroah-Hartman Reviewed-by: Jan Kara Acked-by: Tejun Heo Reviewed-by: Hannes Reinecke --- fs/block_dev.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/fs/block_dev.c b/fs/block_dev.c index 962fabe8a67b83..6016777b648336 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -1742,22 +1742,22 @@ static void __blkdev_put(struct block_device *bdev, fmode_t mode, int for_part) WARN_ON_ONCE(bdev->bd_holders); sync_blockdev(bdev); kill_bdev(bdev); - bdev_write_inode(bdev); - } - if (bdev->bd_contains == bdev) { - if (disk->fops->release) + + if (!bdev_is_partition(bdev) && disk->fops->release) disk->fops->release(disk, mode); - } - if (!bdev->bd_openers) { + disk_put_part(bdev->bd_part); bdev->bd_part = NULL; bdev->bd_disk = NULL; - if (bdev != bdev->bd_contains) + if (bdev_is_partition(bdev)) victim = bdev->bd_contains; bdev->bd_contains = NULL; put_disk_and_module(disk); + } else { + if (!bdev_is_partition(bdev) && disk->fops->release) + disk->fops->release(disk, mode); } mutex_unlock(&bdev->bd_mutex); bdput(bdev);