linux-kernel - Re: [PATCH 05/14] mm: workingset: let cache workingset challenge anon

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Message-ID: <CAAmzW4MLAtPyLUbYRZJv5=kcbYRj3jH5MHzx-PkU51OqEt3b+g@mail.gmail.com>
Date:   Tue, 16 Jun 2020 15:09:46 +0900
From:   Joonsoo Kim <js1304@...il.com>
To:     Johannes Weiner <hannes@...xchg.org>
Cc:     Vlastimil Babka <vbabka@...e.cz>,
        Linux Memory Management List <linux-mm@...ck.org>,
        Rik van Riel <riel@...riel.com>,
        Minchan Kim <minchan.kim@...il.com>,
        Michal Hocko <mhocko@...e.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        LKML <linux-kernel@...r.kernel.org>, kernel-team@...com
Subject: Re: [PATCH 05/14] mm: workingset: let cache workingset challenge anon

2020년 6월 15일 (월) 오후 10:41, Johannes Weiner <hannes@...xchg.org>님이 작성:
>
> On Fri, Jun 12, 2020 at 12:19:58PM +0900, Joonsoo Kim wrote:
> > 2020년 6월 5일 (금) 오전 12:06, Johannes Weiner <hannes@...xchg.org>님이 작성:
> > >
> > > On Thu, Jun 04, 2020 at 03:35:27PM +0200, Vlastimil Babka wrote:
> > > > On 6/1/20 10:44 PM, Johannes Weiner wrote:
> > > > > From a8faceabc1454dfd878caee2a8422493d937a394 Mon Sep 17 00:00:00 2001
> > > > > From: Johannes Weiner <hannes@...xchg.org>
> > > > > Date: Mon, 1 Jun 2020 14:04:09 -0400
> > > > > Subject: [PATCH] mm: workingset: let cache workingset challenge anon fix
> > > >
> > > > Looks like the whole series is now in mainline (that was quick!) without this
> > > > followup? As such it won't be squashed so perhaps the subject should be more
> > > > "standalone" now, description referencing commit 34e58cac6d8f ("mm: workingset:
> > > > let cache workingset challenge anon"), possibly with Fixes: tag etc...
> > >
> > > Yep, I'll send a stand-alone version of this. It was a bit fat to get
> > > squashed last minute anyway, and I don't mind having a bit of extra
> > > time to quantify the actual impact of this delta.
> >
> > Hello, Johannes.
> >
> > Now, a week has passed. I hope that this patch is merged as soon as possible,
> > since my WIP patchset depends on this patch. How about trying to merge
> > this patch now? If you don't mind, I could send it on your behalf.
>
> I didn't realize you directly depended on it, my apologies.

No problem.

> Do you depend on it code-wise or do you have test case that shows a
> the difference?

Code-wise. My patchset also requires activation counting for the anon
pages and conflict could occur in this case.

> Here is the latest version again, you can include it in your patch
> series until we get it merged. But I think we should be able to merge
> it as a follow-up fix into 5.8 still.

Yes. I will send it separately for 5.8. And, I will send some minor fixes, too.
It's appreciated if you review them.

Thanks.