linux-ext4 - [PATCH 21/29] reiserfs: use bdev_nr_sectors instead of open coding it

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Message-Id: <20211013051042.1065752-22-hch@lst.de>
Date:   Wed, 13 Oct 2021 07:10:34 +0200
From:   Christoph Hellwig <hch@....de>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     Coly Li <colyli@...e.de>, Mike Snitzer <snitzer@...hat.com>,
        Song Liu <song@...nel.org>, David Sterba <dsterba@...e.com>,
        Josef Bacik <josef@...icpanda.com>,
        "Theodore Ts'o" <tytso@....edu>,
        OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>,
        Dave Kleikamp <shaggy@...nel.org>,
        Ryusuke Konishi <konishi.ryusuke@...il.com>,
        Anton Altaparmakov <anton@...era.com>,
        Konstantin Komarov <almaz.alexandrovich@...agon-software.com>,
        Kees Cook <keescook@...omium.org>,
        Phillip Lougher <phillip@...ashfs.org.uk>,
        Jan Kara <jack@...e.com>, linux-block@...r.kernel.org,
        dm-devel@...hat.com, drbd-dev@...ts.linbit.com,
        linux-bcache@...r.kernel.org, linux-raid@...r.kernel.org,
        linux-mtd@...ts.infradead.org, linux-nvme@...ts.infradead.org,
        linux-scsi@...r.kernel.org, target-devel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-btrfs@...r.kernel.org,
        linux-ext4@...r.kernel.org, jfs-discussion@...ts.sourceforge.net,
        linux-nfs@...r.kernel.org, linux-nilfs@...r.kernel.org,
        linux-ntfs-dev@...ts.sourceforge.net, ntfs3@...ts.linux.dev,
        reiserfs-devel@...r.kernel.org
Subject: [PATCH 21/29] reiserfs: use bdev_nr_sectors instead of open coding it

Use the proper helper to read the block device size and remove two
cargo culted checks that can't be false.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 fs/reiserfs/super.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 58481f8d63d5b..6c9681e2809f0 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -1986,8 +1986,7 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 	 * smaller than the filesystem. If the check fails then abort and
 	 * scream, because bad stuff will happen otherwise.
 	 */
-	if (s->s_bdev && s->s_bdev->bd_inode
-	    && i_size_read(s->s_bdev->bd_inode) <
+	if ((bdev_nr_sectors(s->s_bdev) << SECTOR_SHIFT) <
 	    sb_block_count(rs) * sb_blocksize(rs)) {
 		SWARN(silent, s, "", "Filesystem cannot be "
 		      "mounted because it is bigger than the device");
-- 
2.30.2