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From: qinyu <qin.yuA@h3c.com>
To: <akpm@linux-foundation.org>, <david@kernel.org>
Cc: <linux-mm@kvack.org>, qinyu <qin.yuA@h3c.com>
Subject: [PATCH] mm/page_idle.c: remove redundant mmu notifier in aging code
Date: Tue, 3 Feb 2026 18:26:49 +0800	[thread overview]
Message-ID: <20260203102649.2486836-1-qin.yuA@h3c.com> (raw)

now we have mmu_notifier_clear_young immediately follows
pmdp_clear_young_notify which internally call mmu_notifier_clear_young,
this is redundant. change it with non-notify variant and keep consistent
with ptep aging code.

Signed-off-by: qinyu <qin.yuA@h3c.com>
---
 mm/page_idle.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/page_idle.c b/mm/page_idle.c
index 96bb94c7b..9c67cbac2 100644
--- a/mm/page_idle.c
+++ b/mm/page_idle.c
@@ -74,7 +74,7 @@ static bool page_idle_clear_pte_refs_one(struct folio *folio,
 			pmd_t pmdval = pmdp_get(pvmw.pmd);
 
 			if (likely(pmd_present(pmdval)))
-				referenced |= pmdp_clear_young_notify(vma, addr, pvmw.pmd);
+				referenced |= pmdp_test_and_clear_young(vma, addr, pvmw.pmd);
 			referenced |= mmu_notifier_clear_young(vma->vm_mm, addr, addr + PMD_SIZE);
 		} else {
 			/* unexpected pmd-mapped page? */
-- 
2.33.0



             reply	other threads:[~2026-02-03 10:27 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-03 10:26 qinyu [this message]
2026-02-04  1:27 ` Baolin Wang
2026-02-04  6:10 ` SeongJae Park
2026-02-04 17:04 ` David Hildenbrand (arm)
2026-02-05  1:27   ` SeongJae Park

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