linux-kernel - [PATCH 1/1] mm/ksm: remove page_stable_node() and use folio_stable

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250916080533.2385624-1-xialonglong@kylinos.cn>
Date: Tue, 16 Sep 2025 16:05:33 +0800
From: Longlong Xia <xialonglong@...inos.cn>
To: akpm@...ux-foundation.org,
	david@...hat.com
Cc: xu.xin16@....com.cn,
	chengming.zhou@...ux.dev,
	linux-kernel@...r.kernel.org,
	linux-mm@...ck.org,
	Longlong Xia <xialonglong@...inos.cn>
Subject: [PATCH 1/1] mm/ksm: remove page_stable_node() and use folio_stable_node() directly

The page_stable_node() function was a trivial wrapper around
folio_stable_node() that had only one call site. Remove this
unnecessary helper and call folio_stable_node(page_folio(page))
directly at that site.There is no functional change.

Signed-off-by: Longlong Xia <xialonglong@...inos.cn>
---
 mm/ksm.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/mm/ksm.c b/mm/ksm.c
index 160787bb121c..eab5348d19a7 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -1061,11 +1061,6 @@ struct ksm_stable_node *folio_stable_node(const struct folio *folio)
 	return folio_test_ksm(folio) ? folio_raw_mapping(folio) : NULL;
 }
 
-static inline struct ksm_stable_node *page_stable_node(struct page *page)
-{
-	return folio_stable_node(page_folio(page));
-}
-
 static inline void folio_set_stable_node(struct folio *folio,
 					 struct ksm_stable_node *stable_node)
 {
@@ -2233,7 +2228,7 @@ static void cmp_and_merge_page(struct page *page, struct ksm_rmap_item *rmap_ite
 	int err;
 	bool max_page_sharing_bypass = false;
 
-	stable_node = page_stable_node(page);
+	stable_node = folio_stable_node(page_folio(page));
 	if (stable_node) {
 		if (stable_node->head != &migrate_nodes &&
 		    get_kpfn_nid(READ_ONCE(stable_node->kpfn)) !=
-- 
2.43.0