Date:   Thu, 26 Jan 2023 17:48:06 -0500
From:   Peter Xu <peterx@redhat.com>
To:     Mike Kravetz <mike.kravetz@oracle.com>
Cc:     linux-mm@kvack.org, linux-kernel@vger.kernel.org,
        Naoya Horiguchi <naoya.horiguchi@linux.dev>,
        James Houghton <jthoughton@google.com>,
        David Hildenbrand <david@redhat.com>,
        Michal Hocko <mhocko@suse.com>, Yang Shi <shy828301@gmail.com>,
        Vishal Moola <vishal.moola@gmail.com>,
        Matthew Wilcox <willy@infradead.org>,
        Muchun Song <songmuchun@bytedance.com>,
        Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH 0/2] Fixes for hugetlb mapcount at most 1 for shared PMDs
Message-ID: <Y9MDJuPWsk9820xD@x1n>
References: <20230126222721.222195-1-mike.kravetz@oracle.com>
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On Thu, Jan 26, 2023 at 02:27:19PM -0800, Mike Kravetz wrote:
> This issue of mapcount in hugetlb pages referenced by shared PMDs was
> discussed in [1].  The following two patches address user visible
> behavior caused by this issue.
> 
> Patches apply to mm-stable as they can also target stable backports.
> 
> Ongoing folio conversions cause context conflicts in the second patch
> when applied to mm-unstable/linux-next.  I can create separate patch(es)
> if people agree with these.
> 
> [1] https://lore.kernel.org/linux-mm/Y9BF+OCdWnCSilEu@monkey/
> Mike Kravetz (2):
>   mm: hugetlb: proc: check for hugetlb shared PMD in /proc/PID/smaps
>   migrate: hugetlb: Check for hugetlb shared PMD in node migration

Acked-by: Peter Xu <peterx@redhat.com>

-- 
Peter Xu