Re: [PATCH v1 04/11] mm: thp: simlify total_mapcount()

[Kirill A. Shutemov]

On Fri, Dec 17, 2021 at 12:30:42PM +0100, David Hildenbrand wrote:
> Let's simplify a bit, returning for PageHuge() early and using
> head_compound_page() as we are only getting called for HEAD pages.
> 
> Note the VM_BUG_ON_PAGE(PageTail(page), page) check at the beginning of
> total_mapcount().
> 
> This is a preparation for further changes.
> 
> Reviewed-by: Peter Xu <peterx@xxxxxxxxxx>
> Signed-off-by: David Hildenbrand <david@xxxxxxxxxx>

Acked-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>

-- 
 Kirill A. Shutemov