Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus

[sfrench/cifs-2.6.git] / mm / swap_state.c

diff --git a/mm/swap_state.c b/mm/swap_state.c
index 6ce0669acedc8022f4088fc8a482c7faff34f1e9..50757ee3f9f3ee243ad23df60ae56a923bb0e64e 100644 (file)
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -17,7 +17,6 @@
 #include <linux/backing-dev.h>
 #include <linux/pagevec.h>
 #include <linux/migrate.h>
-#include <linux/memcontrol.h>
 
 #include <asm/pgtable.h>
 
@@ -75,11 +74,6 @@ int add_to_swap_cache(struct page *page, swp_entry_t entry, gfp_t gfp_mask)
        BUG_ON(!PageLocked(page));
        BUG_ON(PageSwapCache(page));
        BUG_ON(PagePrivate(page));
-
-       error = mem_cgroup_cache_charge(page, current->mm, gfp_mask);
-       if (error)
-               goto out;
-
        error = radix_tree_preload(gfp_mask);
        if (!error) {
                write_lock_irq(&swapper_space.tree_lock);
@@ -92,14 +86,10 @@ int add_to_swap_cache(struct page *page, swp_entry_t entry, gfp_t gfp_mask)
                        total_swapcache_pages++;
                        __inc_zone_page_state(page, NR_FILE_PAGES);
                        INC_CACHE_INFO(add_total);
-               } else {
-                       mem_cgroup_uncharge_page(page);
                }
                write_unlock_irq(&swapper_space.tree_lock);
                radix_tree_preload_end();
-       } else
-               mem_cgroup_uncharge_page(page);
-out:
+       }
        return error;
 }
 
@@ -114,7 +104,6 @@ void __delete_from_swap_cache(struct page *page)
        BUG_ON(PageWriteback(page));
        BUG_ON(PagePrivate(page));
 
-       mem_cgroup_uncharge_page(page);
        radix_tree_delete(&swapper_space.page_tree, page_private(page));
        set_page_private(page, 0);
        ClearPageSwapCache(page);
@@ -126,6 +115,7 @@ void __delete_from_swap_cache(struct page *page)
 /**
  * add_to_swap - allocate swap space for a page
  * @page: page we want to move to swap
+ * @gfp_mask: memory allocation flags
  *
  * Allocate swap space for the page and add the page to the
  * swap cache.  Caller needs to hold the page lock. 
@@ -326,6 +316,7 @@ struct page *read_swap_cache_async(swp_entry_t entry, gfp_t gfp_mask,
 /**
  * swapin_readahead - swap in pages in hope we need them soon
  * @entry: swap entry of this memory
+ * @gfp_mask: memory allocation flags
  * @vma: user vma this address belongs to
  * @addr: target address for mempolicy
  *