sys/uvm/uvm_map.c

1266 	struct vm_map_entry *dead = NULL, *dead_entries = NULL;
1316 		uvm_unmap_remove(map, start, start + size, &dead_entries, 0);
1614 	if (dead_entries)
1615 		uvm_unmap_detach(dead_entries, 0);
4325 	struct vm_map_entry *dead_entries;
4352 		    &dead_entries, flags);
4353 		if (dead_entries != NULL)
4354 			uvm_unmap_detach(dead_entries, 0);
4805 	struct vm_map_entry *dead_entries;
4822 	uvm_unmap_remove(map, start, end, &dead_entries, flags);
4825 	if (dead_entries != NULL)
4826 		uvm_unmap_detach(dead_entries, 0);