[PATCH 3/7] memcontrol: use simple_malloc()/simple_free()

[Lai Jiangshan <laijs@cn.fujitsu.com>]

use simple_malloc()/simple_free() instead of current codes.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
---
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 866dcc7..66e1c6d 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1062,11 +1062,7 @@ static struct mem_cgroup *mem_cgroup_alloc(void)
 {
 	struct mem_cgroup *mem;
 
-	if (sizeof(*mem) < PAGE_SIZE)
-		mem = kmalloc(sizeof(*mem), GFP_KERNEL);
-	else
-		mem = vmalloc(sizeof(*mem));
-
+	mem = simple_malloc(sizeof(*mem));
 	if (mem)
 		memset(mem, 0, sizeof(*mem));
 	return mem;
@@ -1074,10 +1070,7 @@ static struct mem_cgroup *mem_cgroup_alloc(void)
 
 static void mem_cgroup_free(struct mem_cgroup *mem)
 {
-	if (sizeof(*mem) < PAGE_SIZE)
-		kfree(mem);
-	else
-		vfree(mem);
+	simple_free(mem);
 }