linux-kernel - Re: [v2 PATCH 5/7] mm: thp: kill transparent_hugepage

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Date:   Thu, 2 Jun 2022 22:00:02 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     Yang Shi <shy828301@...il.com>
Cc:     vbabka@...e.cz, kirill.shutemov@...ux.intel.com,
        akpm@...ux-foundation.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [v2 PATCH 5/7] mm: thp: kill transparent_hugepage_active()

On Thu, Jun 02, 2022 at 11:21:57AM -0700, Yang Shi wrote:
> diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
> index 79d5919beb83..f315c70d5256 100644
> --- a/include/linux/huge_mm.h
> +++ b/include/linux/huge_mm.h
> @@ -209,7 +209,9 @@ static inline bool file_thp_enabled(struct vm_area_struct *vma)
>  	       !inode_is_open_for_write(inode) && S_ISREG(inode->i_mode);
>  }
>  
> -bool transparent_hugepage_active(struct vm_area_struct *vma);
> +extern bool hugepage_vma_check(struct vm_area_struct *vma,

Please remove the 'extern's.  They add no value to function
declarations.