memcg: remove mem_cgroup_calc_mapped_ratio()

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

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 2bdb614..7bb14fd 100644 (file)
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -507,23 +507,6 @@ int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem)
        return ret;
 }
 
-/*
- * Calculate mapped_ratio under memory controller. This will be used in
- * vmscan.c for deteremining we have to reclaim mapped pages.
- */
-int mem_cgroup_calc_mapped_ratio(struct mem_cgroup *mem)
-{
-       long total, rss;
-
-       /*
-        * usage is recorded in bytes. But, here, we assume the number of
-        * physical pages can be represented by "long" on any arch.
-        */
-       total = (long) (mem->res.usage >> PAGE_SHIFT) + 1L;
-       rss = (long)mem_cgroup_read_stat(&mem->stat, MEM_CGROUP_STAT_RSS);
-       return (int)((rss * 100L) / total);
-}
-
 /*
  * prev_priority control...this will be used in memory reclaim path.
  */