Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/selinux into for...

[linux-2.6-block.git] / include / linux / swap.h

diff --git a/include/linux/swap.h b/include/linux/swap.h
index 6282f1eb3d6a3f179fc070f03ea80605d8c530aa..7ba7dccaf0e7e1291b3489c9ece30318cb44fc6f 100644 (file)
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -351,7 +351,15 @@ extern void check_move_unevictable_pages(struct page **, int nr_pages);
 extern int kswapd_run(int nid);
 extern void kswapd_stop(int nid);
 #ifdef CONFIG_MEMCG
-extern int mem_cgroup_swappiness(struct mem_cgroup *mem);
+static inline int mem_cgroup_swappiness(struct mem_cgroup *memcg)
+{
+       /* root ? */
+       if (mem_cgroup_disabled() || !memcg->css.parent)
+               return vm_swappiness;
+
+       return memcg->swappiness;
+}
+
 #else
 static inline int mem_cgroup_swappiness(struct mem_cgroup *mem)
 {
@@ -398,6 +406,9 @@ extern void free_pages_and_swap_cache(struct page **, int);
 extern struct page *lookup_swap_cache(swp_entry_t);
 extern struct page *read_swap_cache_async(swp_entry_t, gfp_t,
                        struct vm_area_struct *vma, unsigned long addr);
+extern struct page *__read_swap_cache_async(swp_entry_t, gfp_t,
+                       struct vm_area_struct *vma, unsigned long addr,
+                       bool *new_page_allocated);
 extern struct page *swapin_readahead(swp_entry_t, gfp_t,
                        struct vm_area_struct *vma, unsigned long addr);