linux-kernel - Re: [PATCH 0/3] Add support for free vmemmap pages of HugeTLB for arm64

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Message-ID: <ED06294F-F046-4B21-9E52-F439C2B32B45@amazon.com>
Date:   Thu, 11 Mar 2021 05:00:42 +0000
From:   "Bodeddula, Balasubramaniam" <bodeddub@...zon.com>
To:     Chen Huang <chenhuang5@...wei.com>,
        Muchun Song <songmuchun@...edance.com>,
        "will@...nel.org" <will@...nel.org>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "david@...hat.com" <david@...hat.com>,
        "osalvador@...e.de" <osalvador@...e.de>,
        "mike.kravetz@...cle.com" <mike.kravetz@...cle.com>,
        "rientjes@...gle.com" <rientjes@...gle.com>
CC:     "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "duanxiongchun@...edance.com" <duanxiongchun@...edance.com>,
        "Umesh Sargur, Gautam" <sargur@...zon.com>
Subject: Re: [PATCH 0/3] Add support for free vmemmap pages of HugeTLB for arm64

Chen, is your testing steps documented somewhere, can you please point us to the same. I followed some steps for testing the x86 patches, just wanted to make sure I am covering your tests as well. We are actively working on building and testing these patches for ARM.

On 11/03/21, 9:44 AM, "Chen Huang" <chenhuang5@...wei.com> wrote:

    CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you can confirm the sender and know the content is safe.



    在 2021/3/10 15:15, Muchun Song 写道:
    > This patchset is based on the series of "Free some vmemmap pages of HugeTLB
    > page". More details can refer to the below link.
    >
    >   https://lkml.kernel.org/r/20210308102807.59745-1-songmuchun@bytedance.com
    >
    > I often received some feedback (We want to test this feature on arm64) before.
    > Because the previous code has been reviewed for 18 versions and is merged
    > into mm tree, I think that it is time to release this patchset. If you want
    > to test then you can start now :-). And I also hope someone can review this.
    >
    > Thanks.
    >
    > Muchun Song (3):
    >   mm: bootmem_info: mark register_page_bootmem_info_section __init
    >   mm: hugetlb: introduce arch_free_vmemmap_page
    >   arm64: mm: hugetlb: add support for free vmemmap pages of HugeTLB
    >
    >  arch/arm64/mm/mmu.c   | 5 +++++
    >  arch/x86/mm/init_64.c | 5 +++++
    >  fs/Kconfig            | 4 ++--
    >  mm/bootmem_info.c     | 4 ++--
    >  mm/sparse-vmemmap.c   | 9 +++++++--
    >  5 files changed, 21 insertions(+), 6 deletions(-)
    >

    Tested-by: Chen Huang <chenhuang5@...wei.com>

    I have tested the patch and the result is same as the last time.