umem_odp_node
static u64 node_start(struct umem_odp_node *n)
static u64 node_last(struct umem_odp_node *n)
INTERVAL_TREE_DEFINE(struct umem_odp_node, rb, u64, __subtree_last,
struct umem_odp_node *node, *next;
struct umem_odp_node *node;
struct umem_odp_node interval_tree;