linux-kernel - Re: [PATCH v1 1/2] mm/hugetlb: fix hugetlb not supporting write-notify

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Date:   Mon, 8 Aug 2022 12:10:02 -0400
From:   Peter Xu <peterx@...hat.com>
To:     Mike Kravetz <mike.kravetz@...cle.com>
Cc:     David Hildenbrand <david@...hat.com>, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
        Muchun Song <songmuchun@...edance.com>,
        Peter Feiner <pfeiner@...gle.com>,
        "Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>,
        stable@...r.kernel.org
Subject: Re: [PATCH v1 1/2] mm/hugetlb: fix hugetlb not supporting
 write-notify

On Fri, Aug 05, 2022 at 04:33:56PM -0700, Mike Kravetz wrote:
> It looks like vma_soft_dirty_enabled is recent and not in any stable
> trees (or even 5.19).
> 
> Yes, I did start working on hugetlb softdirty support in the past.
> https://lore.kernel.org/lkml/20210211000322.159437-1-mike.kravetz@oracle.com/
> 
> Unfortunately, it got preempted by other things.  I will try to move it up
> the priority list.

Thanks, Mike.

It'll also makes sense to forbid it if it may take time to finish, so we
don't need to push ourselves.

-- 
Peter Xu