Re: [PATCH v6 09/18] arm64/mm: Convert ptep_clear() to ptep_get_and_clear()

Mark Rutland
2024-02-15T11:20:31Z

On Thu, Feb 15, 2024 at 10:31:56AM +0000, Ryan Roberts wrote:
> ptep_clear() is a generic wrapper around the arch-implemented
> ptep_get_and_clear(). We are about to convert ptep_get_and_clear() into
> a public version and private version (__ptep_get_and_clear()) to support
> the transparent contpte work. We won't have a private version of
> ptep_clear() so let's convert it to directly call ptep_get_and_clear().
>
> Tested-by: John Hubbard <jhubbard@nvidia.com>
> Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>

Acked-by: Mark Rutland <mark.rutland@arm.com>

Mark.

> ---
> arch/arm64/mm/hugetlbpage.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c
> index 27f6160890d1..48e8b429879d 100644
> --- a/arch/arm64/mm/hugetlbpage.c
> +++ b/arch/arm64/mm/hugetlbpage.c
> @@ -229,7 +229,7 @@ static void clear_flush(struct mm_struct *mm,
> unsigned long i, saddr = addr;
>
> for (i = 0; i < ncontig; i++, addr += pgsize, ptep++)
> - ptep_clear(mm, addr, ptep);
> + ptep_get_and_clear(mm, addr, ptep);
>
> flush_tlb_range(&vma, saddr, addr);
> }
> --
> 2.25.1
>