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

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@redhat.com Signed-off-by: David Hildenbrand david@redhat.com

Acked-by: Kirill A. Shutemov kirill.shutemov@linux.intel.com