-int cg_attach_everywhere(CGroupControllerMask supported, const char *path, pid_t pid);
-int cg_attach_many_everywhere(CGroupControllerMask supported, const char *path, Set* pids);
+int cg_attach_everywhere(CGroupControllerMask supported, const char *path, pid_t pid, cg_migrate_callback_t callback, void *userdata);
+int cg_attach_many_everywhere(CGroupControllerMask supported, const char *path, Set* pids, cg_migrate_callback_t callback, void *userdata);