Add a putback_lru_page() wrapper. Removes a couple of compound_head()
calls.
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
mm/folio-compat.c | 5 +++++
mm/internal.h | 3 ++-
mm/vmscan.c | 16 ++++++++--------
3 files changed, 15 insertions(+), 9 deletions(-)
diff --git a/mm/folio-compat.c b/mm/folio-compat.c
index a4a7725f4486..46fa179e32fb 100644
--- a/mm/folio-compat.c
+++ b/mm/folio-compat.c
@@ -159,3 +159,8 @@ int isolate_lru_page(struct page *page)
return -EBUSY;
return folio_isolate_lru((struct folio *)page);
}
+
+void putback_lru_page(struct page *page)
+{
+ folio_putback_lru(page_folio(page));
+}
diff --git a/mm/internal.h b/mm/internal.h
index 8b0249909b06..b7a2195c12b1 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -159,7 +159,8 @@ extern unsigned long highest_memmap_pfn;
*/
int isolate_lru_page(struct page *page);
int folio_isolate_lru(struct folio *folio);
-extern void putback_lru_page(struct page *page);
+void putback_lru_page(struct page *page);
+void folio_putback_lru(struct folio *folio);
extern void reclaim_throttle(pg_data_t *pgdat, enum vmscan_throttle_state reason);
/*
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 08dcb1897f58..9f11960b1db8 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1355,18 +1355,18 @@ int remove_mapping(struct address_space *mapping, struct page *page)
}
/**
- * putback_lru_page - put previously isolated page onto appropriate LRU list
- * @page: page to be put back to appropriate lru list
+ * folio_putback_lru - Put previously isolated folio onto appropriate LRU list.
+ * @folio: Folio to be returned to an LRU list.
*
- * Add previously isolated @page to appropriate LRU list.
- * Page may still be unevictable for other reasons.
+ * Add previously isolated @folio to appropriate LRU list.
+ * The folio may still be unevictable for other reasons.
*
- * lru_lock must not be held, interrupts must be enabled.
+ * Context: lru_lock must not be held, interrupts must be enabled.
*/
-void putback_lru_page(struct page *page)
+void folio_putback_lru(struct folio *folio)
{
- lru_cache_add(page);
- put_page(page); /* drop ref from isolate */
+ folio_add_lru(folio);
+ folio_put(folio); /* drop ref from isolate */
}
enum page_references {
--
2.34.1
