linux-kernel - Re: [PATCH] mm/huge_memory: use RMAP_NONE when calling page_add_anon

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Message-ID: <ad8b9857-9aa8-8f33-d378-fdd5ce8f28f5@redhat.com>
Date:   Fri, 14 Jul 2023 16:24:10 +0200
From:   David Hildenbrand <david@...hat.com>
To:     Miaohe Lin <linmiaohe@...wei.com>, akpm@...ux-foundation.org
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm/huge_memory: use RMAP_NONE when calling
 page_add_anon_rmap()

On 13.07.23 14:05, Miaohe Lin wrote:
> It's more convenient and readable to use RMAP_NONE instead of false when
> calling page_add_anon_rmap(). No functional change intended.
> 
> Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
> ---
>   mm/huge_memory.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/mm/huge_memory.c b/mm/huge_memory.c
> index 9f3109ed7351..762be2f4244c 100644
> --- a/mm/huge_memory.c
> +++ b/mm/huge_memory.c
> @@ -2255,7 +2255,7 @@ static void __split_huge_pmd_locked(struct vm_area_struct *vma, pmd_t *pmd,
>   				entry = pte_mksoft_dirty(entry);
>   			if (uffd_wp)
>   				entry = pte_mkuffd_wp(entry);
> -			page_add_anon_rmap(page + i, vma, addr, false);
> +			page_add_anon_rmap(page + i, vma, addr, RMAP_NONE);
>   		}
>   		VM_BUG_ON(!pte_none(ptep_get(pte)));
>   		set_pte_at(mm, addr, pte, entry);

Indeed

Reviewed-by: David Hildenbrand <david@...hat.com>

-- 
Cheers,

David / dhildenb