Re: [PATCH v1 0/8] Fix set_huge_pte_at() panic on arm64

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On 21/09/2023 18:38, Catalin Marinas wrote:
> On Thu, Sep 21, 2023 at 05:35:54PM +0100, Ryan Roberts wrote:
>> On 21/09/2023 17:30, Andrew Morton wrote:
>>> On Thu, 21 Sep 2023 17:19:59 +0100 Ryan Roberts <ryan.roberts@xxxxxxx> wrote:
>>>> Ryan Roberts (8):
>>>>   parisc: hugetlb: Convert set_huge_pte_at() to take vma
>>>>   powerpc: hugetlb: Convert set_huge_pte_at() to take vma
>>>>   riscv: hugetlb: Convert set_huge_pte_at() to take vma
>>>>   s390: hugetlb: Convert set_huge_pte_at() to take vma
>>>>   sparc: hugetlb: Convert set_huge_pte_at() to take vma
>>>>   mm: hugetlb: Convert set_huge_pte_at() to take vma
>>>>   arm64: hugetlb: Convert set_huge_pte_at() to take vma
>>>>   arm64: hugetlb: Fix set_huge_pte_at() to work with all swap entries
>>>>
>>>>  arch/arm64/include/asm/hugetlb.h              |  2 +-
>>>>  arch/arm64/mm/hugetlbpage.c                   | 22 ++++----------
>>>>  arch/parisc/include/asm/hugetlb.h             |  2 +-
>>>>  arch/parisc/mm/hugetlbpage.c                  |  4 +--
>>>>  .../include/asm/nohash/32/hugetlb-8xx.h       |  3 +-
>>>>  arch/powerpc/mm/book3s64/hugetlbpage.c        |  2 +-
>>>>  arch/powerpc/mm/book3s64/radix_hugetlbpage.c  |  2 +-
>>>>  arch/powerpc/mm/nohash/8xx.c                  |  2 +-
>>>>  arch/powerpc/mm/pgtable.c                     |  7 ++++-
>>>>  arch/riscv/include/asm/hugetlb.h              |  2 +-
>>>>  arch/riscv/mm/hugetlbpage.c                   |  3 +-
>>>>  arch/s390/include/asm/hugetlb.h               |  8 +++--
>>>>  arch/s390/mm/hugetlbpage.c                    |  8 ++++-
>>>>  arch/sparc/include/asm/hugetlb.h              |  8 +++--
>>>>  arch/sparc/mm/hugetlbpage.c                   |  8 ++++-
>>>>  include/asm-generic/hugetlb.h                 |  6 ++--
>>>>  include/linux/hugetlb.h                       |  6 ++--
>>>>  mm/damon/vaddr.c                              |  2 +-
>>>>  mm/hugetlb.c                                  | 30 +++++++++----------
>>>>  mm/migrate.c                                  |  2 +-
>>>>  mm/rmap.c                                     | 10 +++----
>>>>  mm/vmalloc.c                                  |  5 +++-
>>>>  22 files changed, 80 insertions(+), 64 deletions(-)
>>>
>>> Looks scary but it's actually a fairly modest patchset.  It could
>>> easily be all rolled into a single patch for ease of backporting. 
>>> Maybe Greg has an opinion?
>>
>> Yes, I thought about doing that; or perhaps 2 patches - one for the interface
>> change across all arches and core code, and one for the actual bug fix?
> 
> I think this would make more sense, especially if we want to backport
> it. The first patch would have no functional change, only an interface
> change, followed by the arm64 fix.

OK I'll do it like this for v2.

> 




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