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

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Message-ID: <600fd7e2-70b4-810f-8d12-62cba80af80d@oracle.com>
Date:   Thu, 3 Dec 2020 15:48:32 -0800
From:   Mike Kravetz <mike.kravetz@...cle.com>
To:     Muchun Song <songmuchun@...edance.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: [PATCH v7 00/15] Free some vmemmap pages of hugetlb page

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.

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.
-- 
Mike Kravetz