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 6eb55f9..c848ea9 100644 (file)
--- 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));