uvm_mapent_addr_remove
uvm_mapent_addr_remove(map, e2);
uvm_mapent_addr_remove(map, last);
uvm_mapent_addr_remove(map, first);
void uvm_mapent_addr_remove(struct vm_map*,
uvm_mapent_addr_remove(map, entry);
uvm_mapent_addr_remove(map, entry);
uvm_mapent_addr_remove(map, entry);