Re: [PATCH v2 06/25] mm: Allow hpages to be arbitrary order

[Kirill A. Shutemov]

On Tue, Feb 11, 2020 at 08:18:26PM -0800, Matthew Wilcox wrote:
> From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
> 
> Remove the assumption in hpage_nr_pages() that compound pages are
> necessarily PMD sized.  The return type needs to be signed as we need
> to use the negative value, eg when calling update_lru_size().

But should it be long?
Any reason to use macros instead of inline function?

-- 
 Kirill A. Shutemov