server: Refuse to close handles in other processes if they have an associated fd.
diff --git a/server/mapping.c b/server/mapping.c
index 212af1b..d526e75 100644
--- a/server/mapping.c
+++ b/server/mapping.c
@@ -68,7 +68,7 @@
     mapping_get_fd,              /* get_fd */
     mapping_map_access,          /* map_access */
     no_lookup_name,              /* lookup_name */
-    no_close_handle,             /* close_handle */
+    fd_close_handle,             /* close_handle */
     mapping_destroy              /* destroy */
 };