262 static inline bool mem_cgroup_is_root(struct mem_cgroup *memcg)  in mem_cgroup_is_root()  function
312 			BUG_ON(mem_cgroup_is_root(sk->sk_cgrp->memcg));  in sock_update_memcg()
341 	if (!memcg || mem_cgroup_is_root(memcg))  in tcp_proto_cgroup()
2038 	if (mem_cgroup_is_root(memcg))  in try_charge()
2168 	if (mem_cgroup_is_root(memcg))  in cancel_charge()
2448 	VM_BUG_ON_PAGE(mem_cgroup_is_root(memcg), page);  in __memcg_kmem_uncharge()
2772 	if (mem_cgroup_is_root(memcg))  in mem_cgroup_force_empty_write()
2834 	if (mem_cgroup_is_root(memcg)) {  in mem_cgroup_usage()
3012 		if (mem_cgroup_is_root(memcg)) { /* Can't set limit on root */  in mem_cgroup_write()
4785 		if (!mem_cgroup_is_root(mc.from))  in __mem_cgroup_clear_mc()
4792 		if (!mem_cgroup_is_root(mc.to))  in __mem_cgroup_clear_mc()
5469 	if (!mem_cgroup_is_root(memcg)) {  in uncharge_batch()
5485 	if (!mem_cgroup_is_root(memcg))  in uncharge_batch()
5694 	if (!mem_cgroup_is_root(memcg))  in mem_cgroup_swapout()
5726 		if (!mem_cgroup_is_root(memcg))  in mem_cgroup_uncharge_swap()