Re: [PATCH v2 4/6] mm: drop HIGHPTE support altogether

["David Hildenbrand (Arm)" <david@kernel.org>]

On 11/12/26 12:54, Mike Rapoport wrote:
> On Thu, Nov 12, 2026 at 12:25:26PM +0100, Arnd Bergmann wrote:
>> From: Arnd Bergmann <arnd@arndb.de>
>>
>> With both x86 and arm having dropped CONFIG_HIGHPTE support, no
>> architecture is left using it, so remove the remnants in common code.
>>
>> It is likely that further cleanups are possible in the page table
>> code but those are not obvious from the config options.
>>
>> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
>> ---
>>  include/linux/hugetlb.h | 5 +----
>>  include/linux/mm.h      | 1 -
>>  include/linux/pgtable.h | 9 ---------
>>  3 files changed, 1 insertion(+), 14 deletions(-)
> 
> With this and arm HIGHPTE patches applied there are still a few leftovers:
> 
> $ git grep  HIGHPTE
> arch/arm/configs/vt8500_v6_v7_defconfig:CONFIG_HIGHPTE=y
> mm/memory.c:     * Dumping the PTE would be nice, but it's tricky with CONFIG_HIGHPTE,
> mm/pgtable-generic.c: * kmapped if necessary (when CONFIG_HIGHPTE), and locked against concurrent
> mm/userfaultfd.c:        * index ordering when CONFIG_HIGHPTE is enabled. We mapped dst_pte
> 
> Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
> 


With these gone

Acked-by: David Hildenbrand (Arm) <david@kernel.org>

-- 
Cheers,

David