linux-kernel - Re: [PATCH 06/24] swap: rework swapin_no

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Message-ID: <CAMgjq7A2uMyYAkpp_ZYYhVw9wZenv-2t7xOO-MJc613o-o27iA@mail.gmail.com>
Date:   Thu, 23 Nov 2023 18:51:13 +0800
From:   Kairui Song <ryncsn@...il.com>
To:     Chris Li <chrisl@...nel.org>
Cc:     linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
        "Huang, Ying" <ying.huang@...el.com>,
        David Hildenbrand <david@...hat.com>,
        Hugh Dickins <hughd@...gle.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Matthew Wilcox <willy@...radead.org>,
        Michal Hocko <mhocko@...e.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 06/24] swap: rework swapin_no_readahead arguments

Chris Li <chrisl@...nel.org> 于2023年11月21日周二 14:44写道：
>
> On Sun, Nov 19, 2023 at 11:48 AM Kairui Song <ryncsn@...il.com> wrote:
> >
> > From: Kairui Song <kasong@...cent.com>
> >
> > Make it use alloc_pages_mpol instead of vma_alloc_folio, and accept
> > mm_struct directly as an argument instead of taking a vmf as argument.
> > Make its arguments similar to swap_{cluster,vma}_readahead, to
> > make the code more aligned.
>
> It is unclear to me what is the value of making the
> swap_{cluster,vma}_readahead more aligned here.
>
> > Also prepare for following commits which will skip vmf for certain
> > swapin paths.
>
> The following patch 07/24 does not seem to use this patch.
> Can it merge with the other patch that uses it?
>
> As it is, this patch does not serve a stand alone value to justify it.

Yes, I'll rearrange this.