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Date: Sun, 22 Mar 2015 17:12:26 -0700 (PDT)
From: Hugh Dickins <hughd@google.com>
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To: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
cc: Andrew Morton <akpm@linux-foundation.org>,
        Andrea Arcangeli <aarcange@redhat.com>,
        Hugh Dickins <hughd@google.com>, Dave Hansen <dave.hansen@intel.com>,
        Mel Gorman <mgorman@suse.de>, Rik van Riel <riel@redhat.com>,
        Vlastimil Babka <vbabka@suse.cz>, Christoph Lameter <cl@gentwo.org>,
        Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
        Steve Capper <steve.capper@linaro.org>,
        "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
        Johannes Weiner <hannes@cmpxchg.org>, Michal Hocko <mhocko@suse.cz>,
        Jerome Marchand <jmarchan@redhat.com>, linux-kernel@vger.kernel.org,
        linux-mm@kvack.org
Subject: Re: [PATCH 02/16] page-flags: trivial cleanup for PageTrans*
 helpers
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On Thu, 19 Mar 2015, Kirill A. Shutemov wrote:

> Use TESTPAGEFLAG_FALSE() to get it a bit cleaner.
> 
> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>

Yeah, this is okay too.

> ---
>  include/linux/page-flags.h | 18 +++---------------
>  1 file changed, 3 insertions(+), 15 deletions(-)
> 
> diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
> index 84d10b65cec6..327aabd9792e 100644
> --- a/include/linux/page-flags.h
> +++ b/include/linux/page-flags.h
> @@ -511,21 +511,9 @@ static inline int PageTransTail(struct page *page)
>  }
>  
>  #else
> -
> -static inline int PageTransHuge(struct page *page)
> -{
> -	return 0;
> -}
> -
> -static inline int PageTransCompound(struct page *page)
> -{
> -	return 0;
> -}
> -
> -static inline int PageTransTail(struct page *page)
> -{
> -	return 0;
> -}
> +TESTPAGEFLAG_FALSE(TransHuge)
> +TESTPAGEFLAG_FALSE(TransCompound)
> +TESTPAGEFLAG_FALSE(TransTail)
>  #endif
>  
>  /*
> -- 
> 2.1.4