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Date:   Wed, 17 Nov 2021 13:20:02 +0000
From:   Matthew Wilcox <willy@infradead.org>
To:     "Kirill A. Shutemov" <kirill@shutemov.name>
Cc:     David Howells <dhowells@redhat.com>, linux-mm@kvack.org,
        torvalds@linux-foundation.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mm: Export PageHeadHuge()
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On Wed, Nov 17, 2021 at 11:36:23AM +0300, Kirill A. Shutemov wrote:
> On Tue, Nov 16, 2021 at 01:54:13PM +0000, David Howells wrote:
> > Export PageHeadHuge() - it's used by folio_test_hugetlb() and thence by
> > folio_file_page() and folio_contains().
> 
> Maybe move it to page-flag.h instead? It is trivial enough.

HUGETLB_PAGE_DTOR is defined in mm.h so there's a bit of a dependency
problem there.