linux-ext4 - [PATCH 20/29] pstore/blk: use bdev_nr_sectors instead of open coding it

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Message-Id: <20211013051042.1065752-21-hch@lst.de>
Date:   Wed, 13 Oct 2021 07:10:33 +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 20/29] pstore/blk: use bdev_nr_sectors instead of open coding it

Use the proper helper to read the block device size.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 fs/pstore/blk.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/pstore/blk.c b/fs/pstore/blk.c
index 04ce58c939a0b..f43009cb2ec82 100644
--- a/fs/pstore/blk.c
+++ b/fs/pstore/blk.c
@@ -223,8 +223,8 @@ static int __register_pstore_blk(struct pstore_device_info *dev,
 		goto err_fput;
 	}
 
-	inode = I_BDEV(psblk_file->f_mapping->host)->bd_inode;
-	dev->zone.total_size = i_size_read(inode);
+	inode = psblk_file->f_mapping->host;
+	dev->zone.total_size = bdev_nr_sectors(I_BDEV(inode)) << SECTOR_SHIFT;
 
 	ret = __register_pstore_device(dev);
 	if (ret)
-- 
2.30.2