1 files changed, 27 insertions, 50 deletions

diff --git a/mm/swap.c b/mm/swap.c
index b135ec90cdeb..8adb9feb61e1 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -151,6 +151,26 @@ void  rotate_reclaimable_page(struct page *page)
         }
 }
 
+static void update_page_reclaim_stat(struct zone *zone, struct page *page,
+                                     int file, int rotated)
+{
+        struct zone_reclaim_stat *reclaim_stat = &zone->reclaim_stat;
+        struct zone_reclaim_stat *memcg_reclaim_stat;
+
+        memcg_reclaim_stat = mem_cgroup_get_reclaim_stat_from_page(page);
+
+        reclaim_stat->recent_scanned[file]++;
+        if (rotated)
+                reclaim_stat->recent_rotated[file]++;
+
+        if (!memcg_reclaim_stat)
+                return;
+
+        memcg_reclaim_stat->recent_scanned[file]++;
+        if (rotated)
+                memcg_reclaim_stat->recent_rotated[file]++;
+}
+
 /*
  * FIXME: speed this up?
  */
@@ -168,10 +188,8 @@ void activate_page(struct page *page)
                 lru += LRU_ACTIVE;
                 add_page_to_lru_list(zone, page, lru);
                 __count_vm_event(PGACTIVATE);
-                mem_cgroup_move_lists(page, lru);
 
-                zone->recent_rotated[!!file]++;
-                zone->recent_scanned[!!file]++;
+                update_page_reclaim_stat(zone, page, !!file, 1);
         }
         spin_unlock_irq(&zone->lru_lock);
 }
@@ -246,25 +264,6 @@ 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
@@ -398,28 +397,6 @@ void __pagevec_release(struct pagevec *pvec)
 EXPORT_SYMBOL(__pagevec_release);
 
 /*
- * pagevec_release() for pages which are known to not be on the LRU
- *
- * This function reinitialises the caller's pagevec.
- */
-void __pagevec_release_nonlru(struct pagevec *pvec)
-{
-        int i;
-        struct pagevec pages_to_free;
-
-        pagevec_init(&pages_to_free, pvec->cold);
-        for (i = 0; i < pagevec_count(pvec); i++) {
-                struct page *page = pvec->pages[i];
-
-                VM_BUG_ON(PageLRU(page));
-                if (put_page_testzero(page))
-                        pagevec_add(&pages_to_free, page);
-        }
-        pagevec_free(&pages_to_free);
-        pagevec_reinit(pvec);
-}
-
-/*
  * Add the passed pages to the LRU, then drop the caller's refcount
  * on them.  Reinitialises the caller's pagevec.
  */
@@ -427,12 +404,14 @@ void ____pagevec_lru_add(struct pagevec *pvec, enum lru_list lru)
 {
         int i;
         struct zone *zone = NULL;
+
         VM_BUG_ON(is_unevictable_lru(lru));
 
         for (i = 0; i < pagevec_count(pvec); i++) {
                 struct page *page = pvec->pages[i];
                 struct zone *pagezone = page_zone(page);
                 int file;
+                int active;
 
                 if (pagezone != zone) {
                         if (zone)
@@ -444,12 +423,11 @@ void ____pagevec_lru_add(struct pagevec *pvec, enum lru_list lru)
                 VM_BUG_ON(PageUnevictable(page));
                 VM_BUG_ON(PageLRU(page));
                 SetPageLRU(page);
+                active = is_active_lru(lru);
                 file = is_file_lru(lru);
-                zone->recent_scanned[file]++;
-                if (is_active_lru(lru)) {
+                if (active)
                         SetPageActive(page);
-                        zone->recent_rotated[file]++;
-                }
+                update_page_reclaim_stat(zone, page, file, active);
                 add_page_to_lru_list(zone, page, lru);
         }
         if (zone)
@@ -495,8 +473,7 @@ void pagevec_swap_free(struct pagevec *pvec)
                 struct page *page = pvec->pages[i];
 
                 if (PageSwapCache(page) && trylock_page(page)) {
-                        if (PageSwapCache(page))
-                                remove_exclusive_swap_page_ref(page);
+                        try_to_free_swap(page);
                         unlock_page(page);
                 }
         }