linux-kernel - Re: [PATCH v3 0/9] mm/hugetlb: Make huge_pte

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Message-ID: <Y5OFAfYA9sNr3m6Q@monkey>
Date:   Fri, 9 Dec 2022 10:57:05 -0800
From:   Mike Kravetz <mike.kravetz@...cle.com>
To:     Peter Xu <peterx@...hat.com>
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Miaohe Lin <linmiaohe@...wei.com>,
        David Hildenbrand <david@...hat.com>,
        Nadav Amit <nadav.amit@...il.com>,
        Andrea Arcangeli <aarcange@...hat.com>,
        Jann Horn <jannh@...gle.com>,
        John Hubbard <jhubbard@...dia.com>,
        James Houghton <jthoughton@...gle.com>,
        Rik van Riel <riel@...riel.com>,
        Muchun Song <songmuchun@...edance.com>
Subject: Re: [PATCH v3 0/9] mm/hugetlb: Make huge_pte_offset() thread-safe
 for pmd unshare

On 12/09/22 12:00, Peter Xu wrote:
> Based on latest mm-unstable (dbccafc6e992).
> 
> This can be seen as a follow-up series to Mike's recent hugetlb vma lock
> series for pmd unsharing, but majorly covering safe use of huge_pte_offset.
> 
> Changelog for v2->v3:
> - Added a-bs and r-bs
> - In walk_hugetlb_range() hooks, don't release vma lock for cond_resched()

Thanks for your continued work on this Peter!

As a followup to that discussion about releasing vma lock for cond_resched(),
I do not have a strong opinion.  Glad you kept my r-b.
-- 
Mike Kravetz