Re: [PATCH 0/2] userfaultfd: merge fs/userfaultfd.c into mm/userfaultfd.c

[Mike Rapoport <rppt@kernel.org>]

On Fri, May 01, 2026 at 08:33:04PM +0200, David Hildenbrand (Arm) wrote:
> On 4/30/26 16:56, Mike Rapoport wrote:
> > On Thu, Apr 30, 2026 at 04:23:08PM +0200, David Hildenbrand (Arm) wrote:
> >> On 4/30/26 13:38, David Hildenbrand (Arm) wrote:
> >>>
> >>> Yeah, makes sense to me!
> >>>
> >>
> >> Thinking about this, is it reasonable that the kconfig stuff stays in fs/ ?
> > 
> > But it's in mm already.
> 
> $ grep HUGETLB fs/Kconfig
> config ARCH_SUPPORTS_HUGETLBFS
> menuconfig HUGETLBFS
>         depends on ARCH_SUPPORTS_HUGETLBFS
> if HUGETLBFS
> config HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON
>         depends on HUGETLB_PAGE_OPTIMIZE_VMEMMAP
> endif # HUGETLBFS
> config HUGETLB_PAGE
>         def_bool HUGETLBFS
> config HUGETLB_PAGE_OPTIMIZE_VMEMMAP
>         def_bool HUGETLB_PAGE
>         depends on ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP
>         select SPARSEMEM_VMEMMAP_PREINIT if ARCH_WANT_HUGETLB_VMEMMAP_PREINIT
> config HUGETLB_PMD_PAGE_TABLE_SHARING
>         def_bool HUGETLB_PAGE
> 

$ grep -c USERFAULT fs/Kconfig
0

HugeTLB is another story.
 
> -- 
> Cheers,
> David

-- 
Sincerely yours,
Mike.