uvm_unmap_detach
uvm_unmap_detach(dead_entries, AMAP_REFALL);
uvm_unmap_detach(dead_entries, 0);
uvm_unmap_detach(deadentry, 0); /* dispose of old entries */
uvm_unmap_detach(chain,
uvm_unmap_detach(dead_entries, 0);
uvm_unmap_detach(dead_entries, 0);
void uvm_unmap_detach(struct vm_map_entry *,int);
uvm_unmap_detach(dead_entries, 0);
uvm_unmap_detach(entries, 0);