Re: [PATCH 02/30] block: add a bdev_nr_bytes helper

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Subject: Re: [PATCH 02/30] block: add a bdev_nr_bytes helper
From: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Date: Fri, 15 Oct 2021 14:35:15 +0100
Cc: Dave Kleikamp <shaggy@xxxxxxxxxx>, jfs-discussion@xxxxxxxxxxxxxxxxxxxxx, Mike Snitzer <snitzer@xxxxxxxxxx>, linux-nvme@xxxxxxxxxxxxxxxxxxx, Konstantin Komarov <almaz.alexandrovich@xxxxxxxxxxxxxxxxxxxx>, Song Liu <song@xxxxxxxxxx>, dm-devel@xxxxxxxxxx, target-devel@xxxxxxxxxxxxxxx, reiserfs-devel@xxxxxxxxxxxxxxx, drbd-dev@xxxxxxxxxxxxxxxx, linux-nilfs@xxxxxxxxxxxxxxx, linux-scsi@xxxxxxxxxxxxxxx, OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>, linux-ext4@xxxxxxxxxxxxxxx, Kees Cook <keescook@xxxxxxxxxxxx>, Josef Bacik <josef@xxxxxxxxxxxxxx>, Coly Li <colyli@xxxxxxx>, linux-raid@xxxxxxxxxxxxxxx, linux-bcache@xxxxxxxxxxxxxxx, David Sterba <dsterba@xxxxxxxx>, Ryusuke Konishi <konishi.ryusuke@xxxxxxxxx>, Anton Altaparmakov <anton@xxxxxxxxxx>, Jens Axboe <axboe@xxxxxxxxx>, linux-block@xxxxxxxxxxxxxxx, linux-nfs@xxxxxxxxxxxxxxx, "Theodore Ts'o" <tytso@xxxxxxx>, linux-ntfs-dev@xxxxxxxxxxxxxxxxxxxxx, Jan Kara <jack@xxxxxxxx>, linux-fsdevel@xxxxxxxxxxxxxxx, Phillip Lougher <phillip@xxxxxxxxxxxxxxx>, ntfs3@xxxxxxxxxxxxxxx, linux-btrfs@xxxxxxxxxxxxxxx
In-reply-to: <20211015132643.1621913-3-hch@lst.de>
References: <20211015132643.1621913-1-hch@lst.de> <20211015132643.1621913-3-hch@lst.de>

On Fri, Oct 15, 2021 at 03:26:15PM +0200, Christoph Hellwig wrote:
> +static inline sector_t bdev_nr_bytes(struct block_device *bdev)
> +{
> +	return i_size_read(bdev->bd_inode);

Uh.  loff_t, surely?

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Follow-Ups:
- Re: [PATCH 02/30] block: add a bdev_nr_bytes helper
  - From: Christoph Hellwig

References:
- don't use ->bd_inode to access the block device size v2
  - From: Christoph Hellwig
- [PATCH 02/30] block: add a bdev_nr_bytes helper
  - From: Christoph Hellwig

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