linux-ext4 - Re: [PATCH 16/29] jfs: use bdev_nr_sectors instead of open coding it

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Date:   Wed, 13 Oct 2021 09:13:57 -0500
From:   Dave Kleikamp <dave.kleikamp@...cle.com>
To:     Christoph Hellwig <hch@....de>, 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>,
        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: Re: [PATCH 16/29] jfs: use bdev_nr_sectors instead of open coding it

On 10/13/21 12:10AM, Christoph Hellwig wrote:
> Use the proper helper to read the block device size.
> 
> Signed-off-by: Christoph Hellwig <hch@....de>

Acked-by: Dave Kleikamp <dave.kleikamp@...cle.com>

> ---
>   fs/jfs/resize.c | 2 +-
>   fs/jfs/super.c  | 2 +-
>   2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/fs/jfs/resize.c b/fs/jfs/resize.c
> index bde787c354fcc..51a8b22e71030 100644
> --- a/fs/jfs/resize.c
> +++ b/fs/jfs/resize.c
> @@ -199,7 +199,7 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
>   	txQuiesce(sb);
>   
>   	/* Reset size of direct inode */
> -	sbi->direct_inode->i_size =  i_size_read(sb->s_bdev->bd_inode);
> +	sbi->direct_inode->i_size = bdev_nr_sectors(sb->s_bdev) << SECTOR_SHIFT;
>   
>   	if (sbi->mntflag & JFS_INLINELOG) {
>   		/*
> diff --git a/fs/jfs/super.c b/fs/jfs/super.c
> index 9030aeaf0f886..992870160903d 100644
> --- a/fs/jfs/super.c
> +++ b/fs/jfs/super.c
> @@ -551,7 +551,7 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
>   		ret = -ENOMEM;
>   		goto out_unload;
>   	}
> -	inode->i_size = i_size_read(sb->s_bdev->bd_inode);
> +	inode->i_size = bdev_nr_sectors(sb->s_bdev) << SECTOR_SHIFT;
>   	inode->i_mapping->a_ops = &jfs_metapage_aops;
>   	inode_fake_hash(inode);
>   	mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
>