From 9c5ccf2db04b8d7c3df363fdd4856c2b79ab2c6a Mon Sep 17 00:00:00 2001
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Date: Wed, 16 Aug 2023 16:11:55 +0100
Subject: mm: remove HUGETLB_PAGE_DTOR

We can use a bit in page[1].flags to indicate that this folio belongs to
hugetlb instead of using a value in page[1].dtors.  That lets
folio_test_hugetlb() become an inline function like it should be.  We can
also get rid of NULL_COMPOUND_DTOR.

Link: https://lkml.kernel.org/r/20230816151201.3655946-8-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Cc: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 include/linux/mm.h | 4 ----
 1 file changed, 4 deletions(-)

(limited to 'include/linux/mm.h')

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 0955b6b13fd0..e241f5ee4dc4 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1240,11 +1240,7 @@ void folio_copy(struct folio *dst, struct folio *src);
 unsigned long nr_free_buffer_pages(void);
 
 enum compound_dtor_id {
-	NULL_COMPOUND_DTOR,
 	COMPOUND_PAGE_DTOR,
-#ifdef CONFIG_HUGETLB_PAGE
-	HUGETLB_PAGE_DTOR,
-#endif
 	TRANSHUGE_PAGE_DTOR,
 	NR_COMPOUND_DTORS,
 };
-- 
cgit