linux-kernel - Re: [PATCH 1/4] fs: add i_blocksize

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Message-ID: <CAHc6FU7vGD9NGn0phJsLEmcU8O7AaBS+hm=AEwYOc0nFGHS-hQ@mail.gmail.com>
Date:   Thu, 9 Mar 2023 11:21:23 +0100
From:   Andreas Gruenbacher <agruenba@...hat.com>
To:     Yangtao Li <frank.li@...o.com>
Cc:     xiang@...nel.org, chao@...nel.org, huyue2@...lpad.com,
        jefflexu@...ux.alibaba.com, tytso@....edu,
        adilger.kernel@...ger.ca, rpeterso@...hat.com,
        viro@...iv.linux.org.uk, brauner@...nel.org,
        linux-erofs@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        linux-ext4@...r.kernel.org, cluster-devel@...hat.com,
        linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH 1/4] fs: add i_blocksize_mask()

On Thu, Mar 9, 2023 at 10:43 AM Yangtao Li <frank.li@...o.com> wrote:
> Introduce i_blocksize_mask() to simplify code, which replace
> (i_blocksize(node) - 1). Like done in commit
> 93407472a21b("fs: add i_blocksize()").

I would call this i_blockmask().

Note that it could be used in ocfs2_is_io_unaligned() as well.

>
> Signed-off-by: Yangtao Li <frank.li@...o.com>
> ---
>  include/linux/fs.h | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/include/linux/fs.h b/include/linux/fs.h
> index c85916e9f7db..db335bd9c256 100644
> --- a/include/linux/fs.h
> +++ b/include/linux/fs.h
> @@ -711,6 +711,11 @@ static inline unsigned int i_blocksize(const struct inode *node)
>         return (1 << node->i_blkbits);
>  }
>
> +static inline unsigned int i_blocksize_mask(const struct inode *node)
> +{
> +       return i_blocksize(node) - 1;
> +}
> +
>  static inline int inode_unhashed(struct inode *inode)
>  {
>         return hlist_unhashed(&inode->i_hash);
> --
> 2.25.1
>

Thanks,
Andreas