56 #define RB_EMPTY_NODE(node)  \  argument
57 	((node)->__rb_parent_color == (unsigned long)(node))
58 #define RB_CLEAR_NODE(node)  \  argument
59 	((node)->__rb_parent_color = (unsigned long)(node))
80 static inline void rb_link_node(struct rb_node *node, struct rb_node *parent,  in rb_link_node()  argument
83 	node->__rb_parent_color = (unsigned long)parent;  in rb_link_node()
84 	node->rb_left = node->rb_right = NULL;  in rb_link_node()
86 	*rb_link = node;  in rb_link_node()
89 static inline void rb_link_node_rcu(struct rb_node *node, struct rb_node *parent,  in rb_link_node_rcu()  argument
92 	node->__rb_parent_color = (unsigned long)parent;  in rb_link_node_rcu()
93 	node->rb_left = node->rb_right = NULL;  in rb_link_node_rcu()
95 	rcu_assign_pointer(*rb_link, node);  in rb_link_node_rcu()