fat: split include/msdos_fs.h

[linux-2.6-omap-h63xx.git] / mm / swap.c

diff --git a/mm/swap.c b/mm/swap.c
index bc58c1369dd6def1add1d55b0b53a605c6308e27..2152e48a7b8f0726f06a88c516d82a0becf3c19d 100644 (file)
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -31,6 +31,8 @@
 #include <linux/backing-dev.h>
 #include <linux/memcontrol.h>
 
+#include "internal.h"
+
 /* How many pages do we try to swap or page in/out together? */
 int page_cluster;
 
@@ -244,6 +246,25 @@ void add_page_to_unevictable_list(struct page *page)
        spin_unlock_irq(&zone->lru_lock);
 }
 
+/**
+ * lru_cache_add_active_or_unevictable
+ * @page:  the page to be added to LRU
+ * @vma:   vma in which page is mapped for determining reclaimability
+ *
+ * place @page on active or unevictable LRU list, depending on
+ * page_evictable().  Note that if the page is not evictable,
+ * it goes directly back onto it's zone's unevictable list.  It does
+ * NOT use a per cpu pagevec.
+ */
+void lru_cache_add_active_or_unevictable(struct page *page,
+                                       struct vm_area_struct *vma)
+{
+       if (page_evictable(page, vma))
+               lru_cache_add_lru(page, LRU_ACTIVE + page_is_file_cache(page));
+       else
+               add_page_to_unevictable_list(page);
+}
+
 /*
  * Drain pages out of the cpu's pagevecs.
  * Either "cpu" is the current CPU, and preemption has already been