memcg: remove nid and zid argument from mem_cgroup_soft_limit_reclaim()

mem_cgroup_soft_limit_reclaim() has zone, nid and zid argument.  but nid
and zid can be calculated from zone.  So remove it.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Nishimura Daisuke <d-nishimura@mtf.biglobe.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 3 deletions

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 8d0bfd7fe32..5e95996ddfb 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2865,8 +2865,7 @@ static int mem_cgroup_resize_memsw_limit(struct mem_cgroup *memcg,
 }
 
 unsigned long mem_cgroup_soft_limit_reclaim(struct zone *zone, int order,
-                                                gfp_t gfp_mask, int nid,
-                                                int zid)
+                                            gfp_t gfp_mask)
 {
         unsigned long nr_reclaimed = 0;
         struct mem_cgroup_per_zone *mz, *next_mz = NULL;
@@ -2878,7 +2877,7 @@ unsigned long mem_cgroup_soft_limit_reclaim(struct zone *zone, int order,
         if (order > 0)
                 return 0;
 
-        mctz = soft_limit_tree_node_zone(nid, zid);
+        mctz = soft_limit_tree_node_zone(zone_to_nid(zone), zone_idx(zone));
         /*
          * This loop can run a while, specially if mem_cgroup's continuously
          * keep exceeding their soft limit and putting the system under