linux-kernel - Re: [PATCH] mm/hugetlbfs: use macro SZ

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Message-ID: <YyIEsuOm0wEkmpAA@ZenIV>
Date:   Wed, 14 Sep 2022 17:43:30 +0100
From:   Al Viro <viro@...iv.linux.org.uk>
To:     Xin Hao <xhao@...ux.alibaba.com>
Cc:     sj@...nel.org, akpm@...ux-foundation.org, damon@...ts.linux.dev,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm/hugetlbfs: use macro SZ_1K to replace 1024

On Wed, Sep 14, 2022 at 07:57:23PM +0800, Xin Hao wrote:
> Using macro SZ_1K in hugetlbfs_show_options() has no any functional
> changes, just makes code more readable.

Why is it any more readable that way?

> Signed-off-by: Xin Hao <xhao@...ux.alibaba.com>
> ---
>  fs/hugetlbfs/inode.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
> index f7a5b5124d8a..9b9784ffe8de 100644
> --- a/fs/hugetlbfs/inode.c
> +++ b/fs/hugetlbfs/inode.c
> @@ -1023,10 +1023,10 @@ static int hugetlbfs_show_options(struct seq_file *m, struct dentry *root)
>  	if (sbinfo->max_inodes != -1)
>  		seq_printf(m, ",nr_inodes=%lu", sbinfo->max_inodes);
> 
> -	hpage_size /= 1024;
> +	hpage_size /= SZ_1K;
>  	mod = 'K';
> -	if (hpage_size >= 1024) {
> -		hpage_size /= 1024;
> +	if (hpage_size >= SZ_1K) {
> +		hpage_size /= SZ_1K;
>  		mod = 'M';
>  	}
>  	seq_printf(m, ",pagesize=%lu%c", hpage_size, mod);
> --
> 2.31.0