800 static struct psi_group *iterate_groups(struct task_struct *task, void **iter)  in iterate_groups()  argument
802 	if (*iter == &psi_system)  in iterate_groups()
809 		if (!*iter)  in iterate_groups()
812 			cgroup = cgroup_parent(*iter);  in iterate_groups()
815 			*iter = cgroup;  in iterate_groups()
820 	*iter = &psi_system;  in iterate_groups()
844 	void *iter = NULL;  in psi_task_change()  local
862 	while ((group = iterate_groups(task, &iter)))  in psi_task_change()
871 	void *iter;  in psi_task_switch()  local
882 		iter = NULL;  in psi_task_switch()
883 		while ((group = iterate_groups(next, &iter))) {  in psi_task_switch()
904 		iter = NULL;  in psi_task_switch()
905 		while ((group = iterate_groups(prev, &iter)) && group != common)  in psi_task_switch()
913 	void *iter = NULL;  in psi_memstall_tick()  local
915 	while ((group = iterate_groups(task, &iter))) {  in psi_memstall_tick()