231 #define for_each_mem_cgroup_tree(iter, root)		\  argument
232 	for (iter = mem_cgroup_iter(root, NULL, NULL);	\
234 	     iter = mem_cgroup_iter(root, iter, NULL))
1032 struct mem_cgroup *mem_cgroup_iter(struct mem_cgroup *root,  in mem_cgroup_iter()  argument
1044 	if (!root)  in mem_cgroup_iter()
1045 		root = root_mem_cgroup;  in mem_cgroup_iter()
1055 		mz = root->nodeinfo[reclaim->pgdat->node_id];  in mem_cgroup_iter()
1081 		css = css_next_descendant_pre(css, &root->css);  in mem_cgroup_iter()
1101 		if (css == &root->css)  in mem_cgroup_iter()
1129 	if (prev && prev != root)  in mem_cgroup_iter()
1140 void mem_cgroup_iter_break(struct mem_cgroup *root,  in mem_cgroup_iter_break()  argument
1143 	if (!root)  in mem_cgroup_iter_break()
1144 		root = root_mem_cgroup;  in mem_cgroup_iter_break()
1145 	if (prev && prev != root)  in mem_cgroup_iter_break()
6757 void mem_cgroup_calculate_protection(struct mem_cgroup *root,  in mem_cgroup_calculate_protection()  argument
6766 	if (!root)  in mem_cgroup_calculate_protection()
6767 		root = root_mem_cgroup;  in mem_cgroup_calculate_protection()
6776 	if (memcg == root)  in mem_cgroup_calculate_protection()
6790 	if (parent == root) {  in mem_cgroup_calculate_protection()