From patchwork Mon Oct 18 10:11:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12565533 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 D4641C18E18 for ; Mon, 18 Oct 2021 10:12:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B877A60E90 for ; Mon, 18 Oct 2021 10:12:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231796AbhJRKOr (ORCPT ); Mon, 18 Oct 2021 06:14:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44726 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231658AbhJRKOc (ORCPT ); Mon, 18 Oct 2021 06:14:32 -0400 Received: from bombadil.infradead.org (unknown [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C338DC061769; Mon, 18 Oct 2021 03:12:16 -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=IR8E02XMGGGYY/7AuAB98aQIqqpNb05KI4jjU1KZi0g=; b=jlyC2wKlv0Dk0mRuurE/joWlZF VpNlBkeeA0PjZ2NajJoDjr9v3EiIwtPF1JteO360FGKJkhfh9OLHtaWcNC/YYVRHzn4igezSYHxT1 7XEkIBOlDwUEBTv9B9OT48ouZ/iOk9da/fqLwcy1JfO/lTqQxPh0qQWN/uTAwOGMhGF1R4I0TADUh QWh+vV4ybNP0mjpdri/xlUfWGBm2coE3H8OuZR3R+2pX12iGo1tvmes3bbBGd5Z27Cct7Z7Iczbza Vr7ekLBFYDDUPusgz0/chUWS0Ox+NEfQQloEJw9Li0TnbKMxDsvOhdpn9LUloR0D9XN9N4HEwoK6P KVvyt3rA==; Received: from [2001:4bb8:199:73c5:c70:4a89:bc61:2] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1mcPcj-00EuH9-BJ; Mon, 18 Oct 2021 10:12:05 +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, Anand Jain , Chaitanya Kulkarni Subject: [PATCH 12/30] btrfs: use bdev_nr_bytes instead of open coding it Date: Mon, 18 Oct 2021 12:11:12 +0200 Message-Id: <20211018101130.1838532-13-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20211018101130.1838532-1-hch@lst.de> References: <20211018101130.1838532-1-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 Use the proper helper to read the block device size. Signed-off-by: Christoph Hellwig Reviewed-by: Kees Cook Reviewed-by: Anand Jain Reviewed-by: Chaitanya Kulkarni Acked-by: David Sterba --- fs/btrfs/dev-replace.c | 3 +-- fs/btrfs/disk-io.c | 2 +- fs/btrfs/ioctl.c | 4 ++-- fs/btrfs/volumes.c | 8 ++++---- 4 files changed, 8 insertions(+), 9 deletions(-) diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c index d029be40ea6f0..fbb8b4457a721 100644 --- a/fs/btrfs/dev-replace.c +++ b/fs/btrfs/dev-replace.c @@ -283,8 +283,7 @@ static int btrfs_init_dev_replace_tgtdev(struct btrfs_fs_info *fs_info, } - if (i_size_read(bdev->bd_inode) < - btrfs_device_get_total_bytes(srcdev)) { + if (bdev_nr_bytes(bdev) < btrfs_device_get_total_bytes(srcdev)) { btrfs_err(fs_info, "target device is smaller than source device!"); ret = -EINVAL; diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 355ea88d5c5f7..29e7598584c4c 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -3740,7 +3740,7 @@ struct btrfs_super_block *btrfs_read_dev_one_super(struct block_device *bdev, else if (ret) return ERR_PTR(ret); - if (bytenr + BTRFS_SUPER_INFO_SIZE >= i_size_read(bdev->bd_inode)) + if (bytenr + BTRFS_SUPER_INFO_SIZE >= bdev_nr_bytes(bdev)) return ERR_PTR(-EINVAL); page = read_cache_page_gfp(mapping, bytenr >> PAGE_SHIFT, GFP_NOFS); diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index cc61813213d83..36ff713da1b12 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -1730,7 +1730,7 @@ static noinline int btrfs_ioctl_resize(struct file *file, } if (!strcmp(sizestr, "max")) - new_size = device->bdev->bd_inode->i_size; + new_size = bdev_nr_bytes(device->bdev); else { if (sizestr[0] == '-') { mod = -1; @@ -1771,7 +1771,7 @@ static noinline int btrfs_ioctl_resize(struct file *file, ret = -EINVAL; goto out_finish; } - if (new_size > device->bdev->bd_inode->i_size) { + if (new_size > bdev_nr_bytes(device->bdev)) { ret = -EFBIG; goto out_finish; } diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 2ec3b8ac8fa35..676c7c4e6e59d 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -1286,7 +1286,7 @@ static struct btrfs_super_block *btrfs_read_disk_super(struct block_device *bdev pgoff_t index; /* make sure our super fits in the device */ - if (bytenr + PAGE_SIZE >= i_size_read(bdev->bd_inode)) + if (bytenr + PAGE_SIZE >= bdev_nr_bytes(bdev)) return ERR_PTR(-EINVAL); /* make sure our super fits in the page */ @@ -2610,8 +2610,8 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path device->io_width = fs_info->sectorsize; device->io_align = fs_info->sectorsize; device->sector_size = fs_info->sectorsize; - device->total_bytes = round_down(i_size_read(bdev->bd_inode), - fs_info->sectorsize); + device->total_bytes = + round_down(bdev_nr_bytes(bdev), fs_info->sectorsize); device->disk_total_bytes = device->total_bytes; device->commit_total_bytes = device->total_bytes; set_bit(BTRFS_DEV_STATE_IN_FS_METADATA, &device->dev_state); @@ -7236,7 +7236,7 @@ static int read_one_dev(struct extent_buffer *leaf, fill_device_from_item(leaf, dev_item, device); if (device->bdev) { - u64 max_total_bytes = i_size_read(device->bdev->bd_inode); + u64 max_total_bytes = bdev_nr_bytes(device->bdev); if (device->total_bytes > max_total_bytes) { btrfs_err(fs_info,