linux-kernel - Re: [External] Re: [PATCH v7 00/15] Free some vmemmap pages of hugetlb page

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Message-ID: <CAMZfGtX2mu1tyE_898mQeEpmP4Pd+rEKOHpYF=KN=5v4WExpig@mail.gmail.com>
Date:   Fri, 4 Dec 2020 11:39:31 +0800
From:   Muchun Song <songmuchun@...edance.com>
To:     Mike Kravetz <mike.kravetz@...cle.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Jonathan Corbet <corbet@....net>, dave.hansen@...ux.intel.com,
        hpa@...or.com, x86@...nel.org, bp@...en8.de, mingo@...hat.com,
        Thomas Gleixner <tglx@...utronix.de>,
        pawan.kumar.gupta@...ux.intel.com, mchehab+huawei@...nel.org,
        paulmck@...nel.org, viro@...iv.linux.org.uk,
        Peter Zijlstra <peterz@...radead.org>, luto@...nel.org,
        oneukum@...e.com, jroedel@...e.de,
        Matthew Wilcox <willy@...radead.org>,
        David Rientjes <rientjes@...gle.com>,
        Mina Almasry <almasrymina@...gle.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        anshuman.khandual@....com, Oscar Salvador <osalvador@...e.de>,
        Michal Hocko <mhocko@...e.com>,
        "Song Bao Hua (Barry Song)" <song.bao.hua@...ilicon.com>,
        Xiongchun duan <duanxiongchun@...edance.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux Memory Management List <linux-mm@...ck.org>,
        linux-doc@...r.kernel.org,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>
Subject: Re: [External] Re: [PATCH v7 00/15] Free some vmemmap pages of
 hugetlb page

On Fri, Dec 4, 2020 at 7:49 AM Mike Kravetz <mike.kravetz@...cle.com> wrote:
>
> On 12/3/20 12:35 AM, Muchun Song wrote:
> > On Mon, Nov 30, 2020 at 11:19 PM Muchun Song <songmuchun@...edance.com> wrote:
> >>
> >> Hi all,
> >>
> >> This patch series will free some vmemmap pages(struct page structures)
> >> associated with each hugetlbpage when preallocated to save memory.
> >
> > Hi Mike,
> >
> > What's your opinion on this version?  Any comments or suggestions?
> > And hoping you or more people review the series. Thank you very
> > much.
>
> Sorry Muchun, I have been busy with other things and have not looked at
> this new version.  Should have some time soon.

Thanks very much.

>
> As previously mentioned, I feel qualified to review the hugetlb changes
> and some other closely related changes.  However, this patch set is
> touching quite a few areas and I do not feel qualified to make authoritative
> statements about them all.  I too hope others will take a look.

Agree. I also hope others can take a look at other modules(e.g.
sparse-vmemmap, memory-hotplug). Thanks for everyone's efforts
on this.

> --
> Mike Kravetz



-- 
Yours,
Muchun