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=-13.7 required=3.0 tests=BAYES_00,DATE_IN_PAST_06_12, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 6BCE0C64E7B for ; Wed, 18 Nov 2020 21:34:31 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id CA47F20715 for ; Wed, 18 Nov 2020 21:34:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CA47F20715 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.cz Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 4EBAB6B0068; Wed, 18 Nov 2020 16:34:27 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 3318F6B006C; Wed, 18 Nov 2020 16:34:27 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id F3FB66B0068; Wed, 18 Nov 2020 16:34:26 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0164.hostedemail.com [216.40.44.164]) by kanga.kvack.org (Postfix) with ESMTP id B7EFC6B005D for ; Wed, 18 Nov 2020 16:34:26 -0500 (EST) Received: from smtpin28.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 510C2180AD830 for ; Wed, 18 Nov 2020 21:34:26 +0000 (UTC) X-FDA: 77498842932.28.chess06_3c0ae232733d Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin28.hostedemail.com (Postfix) with ESMTP id 282DA6C0A for ; Wed, 18 Nov 2020 21:34:26 +0000 (UTC) X-HE-Tag: chess06_3c0ae232733d X-Filterd-Recvd-Size: 2955 Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by imf42.hostedemail.com (Postfix) with ESMTP for ; Wed, 18 Nov 2020 21:34:25 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 01321B000; Wed, 18 Nov 2020 21:34:23 +0000 (UTC) Received: by quack2.suse.cz (Postfix, from userid 1000) id BCB4E1E1330; Wed, 18 Nov 2020 15:46:40 +0100 (CET) Date: Wed, 18 Nov 2020 15:46:40 +0100 From: Jan Kara To: Christoph Hellwig Cc: Jens Axboe , Tejun Heo , Josef Bacik , Konrad Rzeszutek Wilk , Coly Li , Mike Snitzer , dm-devel@redhat.com, Richard Weinberger , Jan Kara , linux-block@vger.kernel.org, xen-devel@lists.xenproject.org, linux-bcache@vger.kernel.org, linux-mtd@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH 10/20] block: refactor __blkdev_put Message-ID: <20201118144640.GO1981@quack2.suse.cz> References: <20201118084800.2339180-1-hch@lst.de> <20201118084800.2339180-11-hch@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201118084800.2339180-11-hch@lst.de> User-Agent: Mutt/1.10.1 (2018-07-13) 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: On Wed 18-11-20 09:47:50, Christoph Hellwig wrote: > Reorder the code to have one big section for the last close, and to use > bdev_is_partition. > > Signed-off-by: Christoph Hellwig Looks good. You can add: Reviewed-by: Jan Kara Honza > --- > 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 29db12c3bb501c..4c4d6c30382c06 100644 > --- a/fs/block_dev.c > +++ b/fs/block_dev.c > @@ -1745,22 +1745,22 @@ 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); > -- > 2.29.2 > -- Jan Kara SUSE Labs, CR