[PATCH v2 14/14] mm/ksm: remove set_page_stable_node

[alexs]

From: "Alex Shi (tencent)" <alexs@xxxxxxxxxx>

Remove the func since all caller are gone. Also remove the
VM_BUG_ON_PAGE() because it's not applicable for a folio.

Signed-off-by: Alex Shi (tencent) <alexs@xxxxxxxxxx>
To: linux-kernel@xxxxxxxxxxxxxxx
To: linux-mm@xxxxxxxxx
To: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Izik Eidus <izik.eidus@xxxxxxxxxxxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Chris Wright <chrisw@xxxxxxxxxxxx>
---
 mm/ksm.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/mm/ksm.c b/mm/ksm.c
index d7c4cc4a0cc1..136909f0c5d5 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -1094,17 +1094,10 @@ static inline struct ksm_stable_node *page_stable_node(struct page *page)
 	return folio_stable_node(page_folio(page));
 }
 
-static inline void set_page_stable_node(struct page *page,
-					struct ksm_stable_node *stable_node)
-{
-	VM_BUG_ON_PAGE(PageAnon(page) && PageAnonExclusive(page), page);
-	page->mapping = (void *)((unsigned long)stable_node | PAGE_MAPPING_KSM);
-}
-
 static inline void folio_set_stable_node(struct folio *folio,
 					 struct ksm_stable_node *stable_node)
 {
-	set_page_stable_node(&folio->page, stable_node);
+	folio->mapping = (void *)((unsigned long)stable_node | PAGE_MAPPING_KSM);
 }
 
 #ifdef CONFIG_SYSFS
-- 
2.43.0