void mcgroup_index_remove(struct mcgroup_index *, const struct uuid *);
void mcgroup_index_clear(struct mcgroup_index *);
void mcgroup_index_destroy(struct mcgroup_index *);
void mcgroup_index_remove(struct mcgroup_index *, const struct uuid *);
void mcgroup_index_clear(struct mcgroup_index *);
void mcgroup_index_destroy(struct mcgroup_index *);