linux-kernel - Re: [PATCH] mm/hugetlb: remove hugetlb_page

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Date:   Tue, 16 May 2023 16:03:31 -0700
From:   Mike Kravetz <mike.kravetz@...cle.com>
To:     Sidhartha Kumar <sidhartha.kumar@...cle.com>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        akpm@...ux-foundation.org, songmuchun@...edance.com,
        willy@...radead.org, david@...hat.com
Subject: Re: [PATCH] mm/hugetlb: remove hugetlb_page_subpool()

On 05/16/23 15:52, Sidhartha Kumar wrote:
> All users of hugetlb_page_subpool() have been converted to use the folio
> equivalent. This function can be safely removed.
> 
> Signed-off-by: Sidhartha Kumar <sidhartha.kumar@...cle.com>
> ---
>  include/linux/hugetlb.h | 13 -------------
>  1 file changed, 13 deletions(-)

Thanks!

Reviewed-by: Mike Kravetz <mike.kravetz@...cle.com>
-- 
Mike Kravetz

> 
> diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
> index b2b698f9a2ecb..21f942025fecd 100644
> --- a/include/linux/hugetlb.h
> +++ b/include/linux/hugetlb.h
> @@ -755,14 +755,6 @@ static inline struct hugepage_subpool *hugetlb_folio_subpool(struct folio *folio
>  	return folio->_hugetlb_subpool;
>  }
>  
> -/*
> - * hugetlb page subpool pointer located in hpage[2].hugetlb_subpool
> - */
> -static inline struct hugepage_subpool *hugetlb_page_subpool(struct page *hpage)
> -{
> -	return hugetlb_folio_subpool(page_folio(hpage));
> -}
> -
>  static inline void hugetlb_set_folio_subpool(struct folio *folio,
>  					struct hugepage_subpool *subpool)
>  {
> @@ -1029,11 +1021,6 @@ static inline struct hugepage_subpool *hugetlb_folio_subpool(struct folio *folio
>  	return NULL;
>  }
>  
> -static inline struct hugepage_subpool *hugetlb_page_subpool(struct page *hpage)
> -{
> -	return NULL;
> -}
> -
>  static inline int isolate_or_dissolve_huge_page(struct page *page,
>  						struct list_head *list)
>  {
> -- 
> 2.40.1
>