Re: [PATCH 0/5] Fix incorrect access of hugetlb pte entries

[Dev Jain]

On 25/06/26 7:29 pm, Zi Yan wrote:
> On Thu Jun 25, 2026 at 7:29 AM EDT, Dev Jain wrote:
>> There are various places which use ptep_get() to get the pte entry
>> corresponding to a hugetlb folio. Some arches have special handling
> 
> I think it is better to mention s390 as a concrete example.

Sure. In case there is no v2, requesting Andrew to change
"Some arches have special handling" to "Some arches like s390 have
special handling".

> 
>> to compute the pteval, so they provide huge_ptep_get(). Use this
>> helper consistently.
>>
>> Dev Jain (5):
>>   mm/rmap: use huge_ptep_get() in try_to_unmap_one()
>>   mm/rmap: use huge_ptep_get() in try_to_migrate_one()
>>   mm/migrate: use huge_ptep_get() in remove_migration_pte()
>>   mm/page_vma_mapped: use huge_ptep_get() for hugetlb
>>   mm/mprotect: use huge_ptep_get() for hugetlb
>>
>>  include/linux/hugetlb.h |  3 +++
>>  mm/migrate.c            |  6 +++++-
>>  mm/mprotect.c           |  8 +++++++-
>>  mm/page_vma_mapped.c    |  8 +++++++-
>>  mm/rmap.c               | 32 ++++++++++++++++++++------------
>>  5 files changed, 42 insertions(+), 15 deletions(-)
> 
> 
> 
>