rb_simple_node
struct rb_simple_node simple_node;
struct rb_simple_node *entry;
entry = rb_entry(node, struct rb_simple_node, rb_node);
struct rb_simple_node *entry, *ret_entry = NULL;
entry = rb_entry(node, struct rb_simple_node, rb_node);
struct rb_simple_node *new_entry = rb_entry(new, struct rb_simple_node, rb_node);
struct rb_simple_node *existing_entry = rb_entry(existing, struct rb_simple_node, rb_node);
struct rb_simple_node *simple_node)
struct rb_simple_node simple_node;
struct rb_simple_node simple_node;