set_active_memcg
struct mem_cgroup *memcg = set_active_memcg(encl_memcg);
set_active_memcg(memcg);
old_memcg = set_active_memcg(
set_active_memcg(old_memcg);
old_memcg = set_active_memcg(memcg);
set_active_memcg(old_memcg);
old_memcg = set_active_memcg(group->memcg);
set_active_memcg(old_memcg);
old_memcg = set_active_memcg(group->memcg);
set_active_memcg(old_memcg);
old_memcg = set_active_memcg(memcg);
set_active_memcg(old_memcg);
old_memcg = set_active_memcg(memcg);
set_active_memcg(old_memcg);
*old_memcg = set_active_memcg(*new_memcg);
set_active_memcg(old_memcg);
tmp = set_active_memcg(root_mem_cgroup);
set_active_memcg(tmp);
old_memcg = set_active_memcg(parent);
set_active_memcg(old_memcg);