linux-kernel - [PATCH 10/18] mm: memory: use mm_counter_file_folio() in copy_present

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Date:   Fri, 3 Nov 2023 22:01:11 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
CC:     <linux-kernel@...r.kernel.org>, <linux-mm@...ck.org>,
        Matthew Wilcox <willy@...radead.org>,
        David Hildenbrand <david@...hat.com>,
        <linux-s390@...r.kernel.org>,
        Kefeng Wang <wangkefeng.wang@...wei.com>
Subject: [PATCH 10/18] mm: memory: use mm_counter_file_folio() in copy_present_pte()

Use mm_counter_file_folio() to save one compound_head() call.

Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
---
 mm/memory.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/memory.c b/mm/memory.c
index 09009094a5f2..d35ca499bf1c 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -960,7 +960,7 @@ copy_present_pte(struct vm_area_struct *dst_vma, struct vm_area_struct *src_vma,
 	} else if (page) {
 		folio_get(folio);
 		page_dup_file_rmap(page, false);
-		rss[mm_counter_file(page)]++;
+		rss[mm_counter_file_folio(folio)]++;
 	}
 
 	/*
-- 
2.27.0