Re: [RFC 1/3] mm: ptep_clear() page table helper

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On 11/17/21 3:30 AM, Pasha Tatashin wrote:
> diff --git a/Documentation/vm/arch_pgtable_helpers.rst b/Documentation/vm/arch_pgtable_helpers.rst
> index 552567d863b8..fbe06ec75370 100644
> --- a/Documentation/vm/arch_pgtable_helpers.rst
> +++ b/Documentation/vm/arch_pgtable_helpers.rst
> @@ -66,9 +66,11 @@ PTE Page Table Helpers
>  +---------------------------+--------------------------------------------------+
>  | pte_mknotpresent          | Invalidates a mapped PTE                         |
>  +---------------------------+--------------------------------------------------+
> -| ptep_get_and_clear        | Clears a PTE                                     |
> +| ptep_clear                | Clears a PTE                                     |
>  +---------------------------+--------------------------------------------------+
> -| ptep_get_and_clear_full   | Clears a PTE                                     |
> +| ptep_get_and_clear        | Clears and returns PTE                           |
> ++---------------------------+--------------------------------------------------+
> +| ptep_get_and_clear_full   | Clears and returns PTE (batched PTE unmap)       |
>  +---------------------------+--------------------------------------------------+
>  | ptep_test_and_clear_young | Clears young from a PTE                          |
>  +---------------------------+--------------------------------------------------+

Just curious. This does not have a corresponding change in mm/debug_vm_pgtable.c ?




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