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From: David Howells <dhowells@redhat.com>
To: willy@infradead.org
Cc: linux-mm@kvack.org, linux-fsdevel@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH] mm: Export PageHeadHuge()
Date: Fri, 20 Aug 2021 17:14:47 +0100	[thread overview]
Message-ID: <162947608701.760537.640097323184606750.stgit@warthog.procyon.org.uk> (raw)

Export PageHeadHuge() - it's used by folio_test_hugetlb() and thence by
folio_file_page() and folio_contains().

Signed-off-by: David Howells <dhowells@redhat.com>
---

 mm/hugetlb.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 68eead0259cc..ad6ef6d2c0bc 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1717,6 +1717,7 @@ int PageHeadHuge(struct page *page_head)
 
 	return page_head[1].compound_dtor == HUGETLB_PAGE_DTOR;
 }
+EXPORT_SYMBOL(PageHeadHuge);
 
 /*
  * Find and lock address space (mapping) in write mode.



             reply	other threads:[~2021-08-20 16:14 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-20 16:14 David Howells [this message]
2021-08-20 17:35 ` [PATCH] mm: Export PageHeadHuge() Christoph Hellwig
2021-11-16 13:54 David Howells
2021-11-17  8:36 ` Kirill A. Shutemov
2021-11-17 13:20   ` Matthew Wilcox
2021-11-17 14:01     ` Kirill A. Shutemov
2022-02-28 13:22 David Howells
2022-02-28 13:41 ` Christoph Hellwig

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