+static void map_groups__flush(struct map_groups *self)
+{
+ int type;
+
+ for (type = 0; type < MAP__NR_TYPES; type++) {
+ struct rb_root *root = &self->maps[type];
+ struct rb_node *next = rb_first(root);
+
+ while (next) {
+ struct map *pos = rb_entry(next, struct map, rb_node);
+ next = rb_next(&pos->rb_node);
+ rb_erase(&pos->rb_node, root);
+ /*
+ * We may have references to this map, for
+ * instance in some hist_entry instances, so
+ * just move them to a separate list.
+ */
+ list_add_tail(&pos->node, &self->removed_maps[pos->type]);
+ }
+ }
+}
+