Merge ../linus

[pandora-kernel.git] / mm / swap.c

diff --git a/mm/swap.c b/mm/swap.c
index 03ae207..687686a 100644 (file)
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -54,6 +54,26 @@ void put_page(struct page *page)
 }
 EXPORT_SYMBOL(put_page);
 
+/**
+ * put_pages_list(): release a list of pages
+ *
+ * Release a list of pages which are strung together on page.lru.  Currently
+ * used by read_cache_pages() and related error recovery code.
+ *
+ * @pages: list of pages threaded on page->lru
+ */
+void put_pages_list(struct list_head *pages)
+{
+       while (!list_empty(pages)) {
+               struct page *victim;
+
+               victim = list_entry(pages->prev, struct page, lru);
+               list_del(&victim->lru);
+               page_cache_release(victim);
+       }
+}
+EXPORT_SYMBOL(put_pages_list);
+
 /*
  * Writeback is about to end against a page which has been marked for immediate
  * reclaim.  If it still appears to be reclaimable, move it to the tail of the
@@ -86,9 +106,8 @@ int rotate_reclaimable_page(struct page *page)
        zone = page_zone(page);
        spin_lock_irqsave(&zone->lru_lock, flags);
        if (PageLRU(page) && !PageActive(page)) {
-               list_del(&page->lru);
-               list_add_tail(&page->lru, &zone->inactive_list);
-               inc_page_state(pgrotated);
+               list_move_tail(&page->lru, &zone->inactive_list);
+               __count_vm_event(PGROTATED);
        }
        if (!test_clear_page_writeback(page))
                BUG();
@@ -108,7 +127,7 @@ void fastcall activate_page(struct page *page)
                del_page_from_inactive_list(zone, page);
                SetPageActive(page);
                add_page_to_active_list(zone, page);
-               inc_page_state(pgactivate);
+               __count_vm_event(PGACTIVATE);
        }
        spin_unlock_irq(&zone->lru_lock);
 }