On Thu, Feb 27, 2025 at 06:57:17PM +0000, Frank van der Linden wrote:
> SPARSEMEM_VMEMMAP_PREINIT is not useful as a user-facing
> option, it is just something that should be selected
> if a subsystem wishes to do vmemmap preinit. That's
> currently only HUGETLB_PAGE_OPTIMIZE_VMEMMAP.
>
> So, make it a default-less option that is only selected
> by HUGETLB_PAGE_OPTIMIZE_VMEMMAP, iff the architecture
> has noted it is capable of doing hugetlb vmemmap preinit.
> That is done via ARCH_WANT_HUGETLB_VMEMMAP_PREINIT,
> renamed from ARCH_WANT_SPARSE_VMEMMAP_PREINIT.
>
> Fixes: a916062fdd134 ("mm/sparse: allow for alternate vmemmap section init at boot")
> Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
> Signed-off-by: Frank van der Linden <fvdl@xxxxxxxxxx>
Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Thank you!
