linux-kernel - [PATCH v2 13/14] mm/ksm: use folio_set_stable_node in try_to_merge_one

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Date: Fri, 22 Mar 2024 16:37:00 +0800
From: alexs@...nel.org
To: Matthew Wilcox <willy@...radead.org>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Izik Eidus <izik.eidus@...ellosystems.com>,
	david@...hat.com,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Cc: "Alex Shi (tencent)" <alexs@...nel.org>,
	Hugh Dickins <hughd@...gle.com>,
	Chris Wright <chrisw@...s-sol.org>
Subject: [PATCH v2 13/14] mm/ksm: use folio_set_stable_node in try_to_merge_one_page

From: "Alex Shi (tencent)" <alexs@...nel.org>

Only single page could be reached where we set stable node after write
protect, so use folio converted func to replace page's.

Signed-off-by: Alex Shi (tencent) <alexs@...nel.org>
Cc: Izik Eidus <izik.eidus@...ellosystems.com>
Cc: Matthew Wilcox <willy@...radead.org>
Cc: Andrea Arcangeli <aarcange@...hat.com>
Cc: Hugh Dickins <hughd@...gle.com>
Cc: Chris Wright <chrisw@...s-sol.org>
---
 mm/ksm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/ksm.c b/mm/ksm.c
index 15a78a9bab59..d7c4cc4a0cc1 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -1518,7 +1518,7 @@ static int try_to_merge_one_page(struct vm_area_struct *vma,
 			 * PageAnon+anon_vma to PageKsm+NULL stable_node:
 			 * stable_tree_insert() will update stable_node.
 			 */
-			set_page_stable_node(page, NULL);
+			folio_set_stable_node(page_folio(page), NULL);
 			mark_page_accessed(page);
 			/*
 			 * Page reclaim just frees a clean page with no dirty
-- 
2.43.0