linux-kernel - Re: [PATCH 0/8] make hugetlb put_page safe for all calling contexts

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Message-ID: <e12c8bfe-c726-cf40-ce26-7c7fd8fc7702@oracle.com>
Date:   Fri, 26 Mar 2021 13:00:50 -0700
From:   Mike Kravetz <mike.kravetz@...cle.com>
To:     Miaohe Lin <linmiaohe@...wei.com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Cc:     Roman Gushchin <guro@...com>, Michal Hocko <mhocko@...e.com>,
        Shakeel Butt <shakeelb@...gle.com>,
        Oscar Salvador <osalvador@...e.de>,
        David Hildenbrand <david@...hat.com>,
        Muchun Song <songmuchun@...edance.com>,
        David Rientjes <rientjes@...gle.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Matthew Wilcox <willy@...radead.org>,
        HORIGUCHI NAOYA <naoya.horiguchi@....com>,
        "Aneesh Kumar K . V" <aneesh.kumar@...ux.ibm.com>,
        Waiman Long <longman@...hat.com>, Peter Xu <peterx@...hat.com>,
        Mina Almasry <almasrymina@...gle.com>,
        Hillf Danton <hdanton@...a.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 0/8] make hugetlb put_page safe for all calling contexts

On 3/25/21 6:42 PM, Miaohe Lin wrote:
> Hi:
> On 2021/3/25 8:28, Mike Kravetz wrote:
>> This effort is the result a recent bug report [1].  In subsequent
>> discussions [2], it was deemed necessary to properly fix the hugetlb
> 
> Many thanks for the effort. I have read the discussions and it is pretty long.
> Maybe it would be helpful if you give a brief summary here?
> 
>> put_page path (free_huge_page).  This RFC provides a possible way to
> 
> trival: Not RFC here.
> 
>> address the issue.  Comments are welcome/encouraged as several attempts
>> at this have been made in the past.
>>> This series is based on v5.12-rc3-mmotm-2021-03-17-22-24.  At a high
>> level, the series provides:
>> - Patches 1 & 2 from Roman Gushchin provide cma_release_nowait()
> 
> trival: missing description of the Patches 3 ?
> 

Thanks,
I will clean this up with next version.
-- 
Mike Kravetz