From patchwork Thu Sep 3 05:40:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 257762 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_INVALID, DKIM_SIGNED, 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 F131DC43461 for ; Thu, 3 Sep 2020 05:42:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CD6FF2080C for ; Thu, 3 Sep 2020 05:42:15 +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="uNn9oGdw" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728314AbgICFmM (ORCPT ); Thu, 3 Sep 2020 01:42:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39518 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725943AbgICFlM (ORCPT ); Thu, 3 Sep 2020 01:41:12 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 07872C061249; Wed, 2 Sep 2020 22:41:12 -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=uYwGVDMXHB40jgd9uVKYjeLPM/XdqdMbtHf32kGpuZo=; b=uNn9oGdwo0OWqccQ+kdfaUKpAZ b3FgK4Q9KIUCYXYSBrPhFCLkhSOFO7zvxp8GCc10MEga6TaeQRrJs9P8Ya95fluVt7QSZuuVOIal6 DbhUGoPt2HqJXLbaShnw+fkBPxA5FNR7m/GRQdBVzh7ej6A6XiBV0XhCncSvC6Npj95+DQq9Ki02F 4T3sj7BkCQIYpvmCMrX+FlTbfGgODBf0nmy9Dq5hPjy+JdxWxm8BqQGYO5VKNLyi4UtQUFQsoy0iF 8mokLtzWbh7ytYPgSnDxQMaHKBzsJafd4xRiiaJpUNcJ3wJDzvyXyUpVyo89Lkfog3R4UnolwE3m3 P1ZiW28w==; Received: from [2001:4bb8:184:af1:c70:4a89:bc61:2] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kDhzh-0007OY-UH; Thu, 03 Sep 2020 05:41:10 +0000 From: Christoph Hellwig To: Jens Axboe Cc: dm-devel@redhat.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, drbd-dev@lists.linbit.com, linux-ide@vger.kernel.org, linux-raid@vger.kernel.org, linux-mmc@vger.kernel.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org Subject: [PATCH 4/9] md: don't detour through bd_contains for the gendisk Date: Thu, 3 Sep 2020 07:40:59 +0200 Message-Id: <20200903054104.228829-5-hch@lst.de> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200903054104.228829-1-hch@lst.de> References: <20200903054104.228829-1-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 Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org bd_disk is set on all block devices, including those for partitions. Signed-off-by: Christoph Hellwig Acked-by: Song Liu --- drivers/md/md.c | 2 +- drivers/md/md.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index 3f33562d10d6f5..5a0fd93769a70e 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -8444,7 +8444,7 @@ static int is_mddev_idle(struct mddev *mddev, int init) idle = 1; rcu_read_lock(); rdev_for_each_rcu(rdev, mddev) { - struct gendisk *disk = rdev->bdev->bd_contains->bd_disk; + struct gendisk *disk = rdev->bdev->bd_disk; curr_events = (int)part_stat_read_accum(&disk->part0, sectors) - atomic_read(&disk->sync_io); /* sync IO will cause sync_io to increase before the disk_stats diff --git a/drivers/md/md.h b/drivers/md/md.h index f9e2ccdd22c478..2175a5ac4f7c68 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -551,7 +551,7 @@ extern void mddev_unlock(struct mddev *mddev); static inline void md_sync_acct(struct block_device *bdev, unsigned long nr_sectors) { - atomic_add(nr_sectors, &bdev->bd_contains->bd_disk->sync_io); + atomic_add(nr_sectors, &bdev->bd_disk->sync_io); } static inline void md_sync_acct_bio(struct bio *bio, unsigned long nr_sectors)