linux-kernel - [PATCH RFC 03/28] mm: workingset: use folio_lruvec() in workingset

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Message-Id: <20250415024532.26632-4-songmuchun@bytedance.com>
Date: Tue, 15 Apr 2025 10:45:07 +0800
From: Muchun Song <songmuchun@...edance.com>
To: hannes@...xchg.org,
	mhocko@...nel.org,
	roman.gushchin@...ux.dev,
	shakeel.butt@...ux.dev,
	muchun.song@...ux.dev,
	akpm@...ux-foundation.org,
	david@...morbit.com,
	zhengqi.arch@...edance.com,
	yosry.ahmed@...ux.dev,
	nphamcs@...il.com,
	chengming.zhou@...ux.dev
Cc: linux-kernel@...r.kernel.org,
	cgroups@...r.kernel.org,
	linux-mm@...ck.org,
	hamzamahfooz@...ux.microsoft.com,
	apais@...ux.microsoft.com,
	Muchun Song <songmuchun@...edance.com>
Subject: [PATCH RFC 03/28] mm: workingset: use folio_lruvec() in workingset_refault()

Use folio_lruvec() to simplify the code.

Signed-off-by: Muchun Song <songmuchun@...edance.com>
---
 mm/workingset.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/mm/workingset.c b/mm/workingset.c
index 4841ae8af411..ebafc0eaafba 100644
--- a/mm/workingset.c
+++ b/mm/workingset.c
@@ -534,8 +534,6 @@ bool workingset_test_recent(void *shadow, bool file, bool *workingset,
 void workingset_refault(struct folio *folio, void *shadow)
 {
 	bool file = folio_is_file_lru(folio);
-	struct pglist_data *pgdat;
-	struct mem_cgroup *memcg;
 	struct lruvec *lruvec;
 	bool workingset;
 	long nr;
@@ -557,10 +555,7 @@ void workingset_refault(struct folio *folio, void *shadow)
 	 * locked to guarantee folio_memcg() stability throughout.
 	 */
 	nr = folio_nr_pages(folio);
-	memcg = folio_memcg(folio);
-	pgdat = folio_pgdat(folio);
-	lruvec = mem_cgroup_lruvec(memcg, pgdat);
-
+	lruvec = folio_lruvec(folio);
 	mod_lruvec_state(lruvec, WORKINGSET_REFAULT_BASE + file, nr);
 
 	if (!workingset_test_recent(shadow, file, &workingset, true))
-- 
2.20.1