From patchwork Fri Oct 15 13:26:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12561549 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BAE12C4332F for ; Fri, 15 Oct 2021 13:27:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9BB8A60FC3 for ; Fri, 15 Oct 2021 13:27:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239424AbhJON3T (ORCPT ); Fri, 15 Oct 2021 09:29:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40592 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229566AbhJON3R (ORCPT ); Fri, 15 Oct 2021 09:29:17 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E6D79C061570; Fri, 15 Oct 2021 06:27:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; 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=3V9fbTJuZDj71a+9mtkBQXQRRqP9hAgnu+ZIhkaADhI=; b=zDXL/abHH8Hy7DpCzkgiW3Aiv1 vdacyZ7SPKBEIXUCbyEsKC0gp64D671n5SCRSmVJigriIQMAA10dYY9IOAlC7vM1GfXcnLtwdsD3O ypu7eCKX1Owu87zR+xuv8SalJND4PppRsawt0gD2aew4jQMKNPsnqvr4GENtTgKm0dkfWS0Ry8Bt9 GNrrcHN5Mql2SnbjOZ9yBDofBiARYHY8gUio35POxOUeg1jnPPUYIsTgg/6hrrCyoMGTWjkIExSb3 Icg7BYK/HVmnjML6lPWBo2ViaJXsJ4mE7gIS4UnwvqqbKAdg/c4HqbuEOV4byXXt0MBzfo2aXWJOP +y/4a+bA==; Received: from [2001:4bb8:199:73c5:ddfe:9587:819b:83b0] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1mbNEZ-007Ce6-3w; Fri, 15 Oct 2021 13:26:51 +0000 From: Christoph Hellwig To: Jens Axboe Cc: Coly Li , Mike Snitzer , Song Liu , David Sterba , Josef Bacik , "Theodore Ts'o" , OGAWA Hirofumi , Dave Kleikamp , Ryusuke Konishi , Anton Altaparmakov , Konstantin Komarov , Kees Cook , Phillip Lougher , Jan Kara , linux-block@vger.kernel.org, dm-devel@redhat.com, drbd-dev@lists.linbit.com, linux-bcache@vger.kernel.org, linux-raid@vger.kernel.org, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org, jfs-discussion@lists.sourceforge.net, linux-nfs@vger.kernel.org, linux-nilfs@vger.kernel.org, linux-ntfs-dev@lists.sourceforge.net, ntfs3@lists.linux.dev, reiserfs-devel@vger.kernel.org Subject: [PATCH 02/30] block: add a bdev_nr_bytes helper Date: Fri, 15 Oct 2021 15:26:15 +0200 Message-Id: <20211015132643.1621913-3-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20211015132643.1621913-1-hch@lst.de> References: <20211015132643.1621913-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: target-devel@vger.kernel.org Add a helpe to query the size of a block device in bytes. This will be used to remove open coded access to ->bd_inode. Signed-off-by: Christoph Hellwig Reviewed-by: Kees Cook --- include/linux/genhd.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 082a3e5fd8fa1..f67db3c5a04b3 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -235,9 +235,14 @@ static inline sector_t get_start_sect(struct block_device *bdev) return bdev->bd_start_sect; } +static inline sector_t bdev_nr_bytes(struct block_device *bdev) +{ + return i_size_read(bdev->bd_inode); +} + static inline sector_t bdev_nr_sectors(struct block_device *bdev) { - return i_size_read(bdev->bd_inode) >> 9; + return bdev_nr_bytes(bdev) >> SECTOR_SHIFT; } static inline sector_t get_capacity(struct gendisk *disk)