From patchwork Thu Sep 17 16:57:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 256750 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=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,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 4DA1EC35263 for ; Thu, 17 Sep 2020 17:13:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0140C22205 for ; Thu, 17 Sep 2020 17:13:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="MwZFnulZ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727137AbgIQRND (ORCPT ); Thu, 17 Sep 2020 13:13:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56310 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726787AbgIQRMs (ORCPT ); Thu, 17 Sep 2020 13:12:48 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 041C3C06174A; Thu, 17 Sep 2020 10:12:48 -0700 (PDT) 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=kKrnsk0G0+/53OYcI1nKBJAYP0PP2drQYHczMU8H8l8=; b=MwZFnulZi1LfJM937tTsYWCyhm YerrYib6vq6IbrVzIuSbW2dwtw/Yepy/GgNkmqmDLV1ILR6GIg248ZqX8OTUxI/WDd9d/7o2VHKSj Umr1892Slzjar0tpfD3Po+8+uO86XR3fxhGgpZnrMFxMcj20WED0VmU0O5u8+XdXlIegVum76eBJW m6c4W6pX+MgE5pzcelvsIFRP2yio9EfVSu+YfB+SJEk8CkN/A2A8HFUHBQsJR9uFy+UEwQR0G8OLh KNtugUkN3I1EkMIKHHk73j4uyh3iYLaZHcD8ZKSpcv7fgtUpA/QPY26/mUnRhlRvKmw2KZc2NkchJ tihpW3mA==; Received: from 089144214092.atnat0023.highway.a1.net ([89.144.214.92] helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kIxSZ-0001JQ-E5; Thu, 17 Sep 2020 17:12:39 +0000 From: Christoph Hellwig To: Jens Axboe Cc: Josef Bacik , Minchan Kim , Stefan Haberland , Jan Hoeppner , Joseph Qi , "Rafael J. Wysocki" , Pavel Machek , Len Brown , Andrew Morton , linux-kernel@vger.kernel.org, nbd@other.debian.org, linux-ide@vger.kernel.org, linux-s390@vger.kernel.org, linux-fsdevel@vger.kernel.org, ocfs2-devel@oss.oracle.com, linux-pm@vger.kernel.org, linux-mm@kvack.org, linux-block@vger.kernel.org Subject: [PATCH 06/14] zram: cleanup backing_dev_store Date: Thu, 17 Sep 2020 18:57:12 +0200 Message-Id: <20200917165720.3285256-7-hch@lst.de> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200917165720.3285256-1-hch@lst.de> References: <20200917165720.3285256-1-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 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Use blkdev_get_by_dev instead of bdgrab + blkdev_get. Signed-off-by: Christoph Hellwig --- drivers/block/zram/zram_drv.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index a356275605b104..91ccfe444525b4 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -491,9 +491,10 @@ static ssize_t backing_dev_store(struct device *dev, goto out; } - bdev = bdgrab(I_BDEV(inode)); - err = blkdev_get(bdev, FMODE_READ | FMODE_WRITE | FMODE_EXCL, zram); - if (err < 0) { + bdev = blkdev_get_by_dev(inode->i_rdev, + FMODE_READ | FMODE_WRITE | FMODE_EXCL, zram); + if (IS_ERR(bdev)) { + err = PTR_ERR(bdev); bdev = NULL; goto out; }