linux-kernel - Re: [PATCH mm-new v5 2/5] mm: khugepaged: refine scan progress number

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Message-ID: <CACZaFFPx3b9VH9GLoXY1HrMaLs9OtJ+oENfobAvoyaQxAhCsQg@mail.gmail.com>
Date: Fri, 23 Jan 2026 23:29:08 +0800
From: Vernon Yang <vernon2gm@...il.com>
To: Matthew Wilcox <willy@...radead.org>
Cc: akpm@...ux-foundation.org, david@...nel.org, lorenzo.stoakes@...cle.com, 
	ziy@...dia.com, dev.jain@....com, baohua@...nel.org, lance.yang@...ux.dev, 
	linux-mm@...ck.org, linux-kernel@...r.kernel.org, 
	Vernon Yang <yanglincheng@...inos.cn>
Subject: Re: [PATCH mm-new v5 2/5] mm: khugepaged: refine scan progress number

On Fri, Jan 23, 2026 at 11:19 PM Matthew Wilcox <willy@...radead.org> wrote:
>
> On Fri, Jan 23, 2026 at 04:22:29PM +0800, Vernon Yang wrote:
> > +     if (cur_progress) {
> > +             unsigned long idx = xas_get_index(&xas) - start;
>
> I agree with Dev.  This is less readable than:
>
>                 unsigned long idx = xas.xa_index - start;

LGTM, I will use "xas->xa_index" directly in the next version. Thanks!