Re: [PATCH] selftests/mm: remove obsolete hugetlb vmemmap test
From: David Hildenbrand (Arm)
Date: Fri Jul 10 2026 - 07:15:58 EST
On 7/10/26 11:24, Muchun Song wrote:
> The hugetlb vmemmap selftest was added to check the old HVO
> layout where tail vmemmap pages reused the head page. That
> assumption no longer matches the current HVO mapping layout.
>
> HVO now keeps a private backing page for the head vmemmap page
> and remaps redundant tail vmemmap pages to a shared read-only
> backing page. The old page flag check is therefore testing an
> obsolete implementation detail rather than the current ABI or
> behavior.
>
> Remove the stale test and its build, run, and ignore entries.
>
> Signed-off-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>
> ---
Acked-by: David Hildenbrand (Arm) <david@xxxxxxxxxx>
--
Cheers,
David