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-rw-r--r--mm/swap.c14
1 files changed, 3 insertions, 11 deletions
diff --git a/mm/swap.c b/mm/swap.c
index 9e8e3472248b..d8eb4d09ffa2 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -589,6 +589,9 @@ static void __lru_cache_activate_page(struct page *page)
* inactive,unreferenced -> inactive,referenced
* inactive,referenced -> active,unreferenced
* active,unreferenced -> active,referenced
+ *
+ * When a newly allocated page is not yet visible, so safe for non-atomic ops,
+ * __SetPageReferenced(page) may be substituted for mark_page_accessed(page).
*/
void mark_page_accessed(struct page *page)
{
@@ -614,17 +617,6 @@ void mark_page_accessed(struct page *page)
}
EXPORT_SYMBOL(mark_page_accessed);
-/*
- * Used to mark_page_accessed(page) that is not visible yet and when it is
- * still safe to use non-atomic ops
- */
-void init_page_accessed(struct page *page)
-{
- if (!PageReferenced(page))
- __SetPageReferenced(page);
-}
-EXPORT_SYMBOL(init_page_accessed);
-
static void __lru_cache_add(struct page *page)
{
struct pagevec *pvec = &get_cpu_var(lru_add_pvec);