Re: [PATCH v12 5/6] khugepaged: enable collapse pmd for pte-mapped THP

["Kirill A. Shutemov" <kirill@xxxxxxxxxxxxx>]

On Fri, Aug 09, 2019 at 06:01:18PM +0000, Song Liu wrote:
> +		if (pte_none(*pte) || !pte_present(*pte))
> +			continue;

You don't need to check both. Present is never none.

-- 
 Kirill A. Shutemov