Re: [PATCH] mm: Drop unused set_pte_safe()

From: Mike Rapoport
Date: Tue Sep 10 2024 - 09:29:32 EST


On Tue, Sep 10, 2024 at 02:34:09PM +0530, Anshuman Khandual wrote:
> All set_pte_safe() usage have been dropped after the commit eccd906484d1
> ("x86/mm: Do not use set_{pud, pmd}_safe() when splitting a large page")
> This just drops now unused helper set_pte_safe().
>
> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> Cc: David Hildenbrand <david@xxxxxxxxxx>
> Cc: Ryan Roberts <ryan.roberts@xxxxxxx>
> Cc: "Mike Rapoport (IBM)" <rppt@xxxxxxxxxx>
> Cc: linux-mm@xxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> Signed-off-by: Anshuman Khandual <anshuman.khandual@xxxxxxx>

Reviewed-by: Mike Rapoport (Microsoft) <rppt@xxxxxxxxxx>

> ---
> include/linux/pgtable.h | 6 ------
> 1 file changed, 6 deletions(-)
>
> diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
> index 2a6a3cccfc36..aeabbf0db7c8 100644
> --- a/include/linux/pgtable.h
> +++ b/include/linux/pgtable.h
> @@ -1058,12 +1058,6 @@ static inline int pgd_same(pgd_t pgd_a, pgd_t pgd_b)
> * same value. Otherwise, use the typical "set" helpers and flush the
> * TLB.
> */
> -#define set_pte_safe(ptep, pte) \
> -({ \
> - WARN_ON_ONCE(pte_present(*ptep) && !pte_same(*ptep, pte)); \
> - set_pte(ptep, pte); \
> -})
> -
> #define set_pmd_safe(pmdp, pmd) \
> ({ \
> WARN_ON_ONCE(pmd_present(*pmdp) && !pmd_same(*pmdp, pmd)); \
> --
> 2.30.2
>
>

--
Sincerely yours,
Mike.