run_node
return kmalloc(sizeof (struct run_node), M_DEVBUF, M_WAITOK | M_ZERO);
struct run_node *rn;
struct run_node *rn = RUN_NODE(ni);
struct run_node *rn = RUN_NODE(ni);
struct run_node *rn = RUN_NODE(ni);
struct run_node *rn = RUN_NODE(ni);
#define RUN_NODE(ni) ((struct run_node *)(ni))