linux-kernel - Re: [PATCH v8 00/12] Free some vmemmap pages of HugeTLB page

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Date:   Thu, 10 Dec 2020 10:18:12 +0100
From:   Oscar Salvador <osalvador@...e.de>
To:     Muchun Song <songmuchun@...edance.com>
Cc:     corbet@....net, mike.kravetz@...cle.com, tglx@...utronix.de,
        mingo@...hat.com, bp@...en8.de, x86@...nel.org, hpa@...or.com,
        dave.hansen@...ux.intel.com, luto@...nel.org, peterz@...radead.org,
        viro@...iv.linux.org.uk, akpm@...ux-foundation.org,
        paulmck@...nel.org, mchehab+huawei@...nel.org,
        pawan.kumar.gupta@...ux.intel.com, rdunlap@...radead.org,
        oneukum@...e.com, anshuman.khandual@....com, jroedel@...e.de,
        almasrymina@...gle.com, rientjes@...gle.com, willy@...radead.org,
        mhocko@...e.com, song.bao.hua@...ilicon.com, david@...hat.com,
        duanxiongchun@...edance.com, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH v8 00/12] Free some vmemmap pages of HugeTLB page

On Thu, Dec 10, 2020 at 11:55:14AM +0800, Muchun Song wrote:
> Muchun Song (12):
>   mm/memory_hotplug: Factor out bootmem core functions to bootmem_info.c
>   mm/hugetlb: Introduce a new config HUGETLB_PAGE_FREE_VMEMMAP
>   mm/bootmem_info: Introduce free_bootmem_page helper
>   mm/hugetlb: Free the vmemmap pages associated with each HugeTLB page
>   mm/hugetlb: Defer freeing of HugeTLB pages
>   mm/hugetlb: Allocate the vmemmap pages associated with each HugeTLB
>     page
>   mm/hugetlb: Set the PageHWPoison to the raw error page
>   mm/hugetlb: Flush work when dissolving hugetlb page
>   mm/hugetlb: Add a kernel parameter hugetlb_free_vmemmap
>   mm/hugetlb: Introduce nr_free_vmemmap_pages in the struct hstate
>   mm/hugetlb: Gather discrete indexes of tail page
>   mm/hugetlb: Optimize the code with the help of the compiler

Well, we went from 24 patches down to 12 patches.
Not bad at all :-)

I will have a look later

Thanks


-- 
Oscar Salvador
SUSE L3