linux-ext4 - Re: [PATCH 02/30] block: add a bdev_nr

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Date:   Fri, 15 Oct 2021 08:49:35 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Anton Altaparmakov <anton@...era.com>
Cc:     Christoph Hellwig <hch@....de>, Jens Axboe <axboe@...nel.dk>,
        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>,
        Konstantin Komarov <almaz.alexandrovich@...agon-software.com>,
        Phillip Lougher <phillip@...ashfs.org.uk>,
        Jan Kara <jack@...e.com>,
        "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        "dm-devel@...hat.com" <dm-devel@...hat.com>,
        "drbd-dev@...ts.linbit.com" <drbd-dev@...ts.linbit.com>,
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        <linux-ntfs-dev@...ts.sourceforge.net>,
        "ntfs3@...ts.linux.dev" <ntfs3@...ts.linux.dev>,
        "reiserfs-devel@...r.kernel.org" <reiserfs-devel@...r.kernel.org>
Subject: Re: [PATCH 02/30] block: add a bdev_nr_bytes helper

On Fri, Oct 15, 2021 at 02:37:41PM +0000, Anton Altaparmakov wrote:
> Hi Christoph,
> 
> > On 15 Oct 2021, at 14:26, Christoph Hellwig <hch@....de> wrote:
> > 
> > Add a helpe to query the size of a block device in bytes.  This
> > will be used to remove open coded access to ->bd_inode.
> 
> Matthew already pointed out the return type for bdev_nr_bytes() but also your commit message has a typo: "Add a helpe" -> "Add a helper".

Right. With these fixed, I'm a fan. :)

Reviewed-by: Kees Cook <keescook@...omium.org>

-Kees

-- 
Kees Cook