[PATCH 1/1] mm/ksm: remove page_stable_node() and use folio_stable_node() directly

[Longlong Xia]

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@xxxxxxxxxx>
---
 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