From: Kefeng Wang <wangkefeng.wang@huawei.com>
Date: Fri, 10 Nov 2023 03:33:21 +0000 (+0800)
Subject: mm: huge_memory: use more folio api in __split_huge_page_tail()
X-Git-Tag: v6.8-rc1~180^2~217
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b75427691f4a1fd3625d1f4c016832b8c75c2326;p=thirdparty%2Fkernel%2Flinux.git

mm: huge_memory: use more folio api in __split_huge_page_tail()

Use more folio APIs to save six compound_head() calls in
__split_huge_page_tail().

Link: https://lkml.kernel.org/r/20231110033324.2455523-5-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 6eb55f97a3d2b..c848ea97ab02d 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2509,13 +2509,13 @@ static void __split_huge_page_tail(struct folio *folio, int tail,
 	clear_compound_head(page_tail);
 
 	/* Finally unfreeze refcount. Additional reference from page cache. */
-	page_ref_unfreeze(page_tail, 1 + (!PageAnon(head) ||
-					  PageSwapCache(head)));
+	page_ref_unfreeze(page_tail, 1 + (!folio_test_anon(folio) ||
+					  folio_test_swapcache(folio)));
 
-	if (page_is_young(head))
-		set_page_young(page_tail);
-	if (page_is_idle(head))
-		set_page_idle(page_tail);
+	if (folio_test_young(folio))
+		folio_set_young(new_folio);
+	if (folio_test_idle(folio))
+		folio_set_idle(new_folio);
 
 	folio_xchg_last_cpupid(new_folio, folio_last_cpupid(folio));