Index: kernel/generic/include/mm/as.h
===================================================================
--- kernel/generic/include/mm/as.h	(revision f1d1f5d3d65116db3fe2744bb3cf38c85e99f14c)
+++ kernel/generic/include/mm/as.h	(revision 57da95c482edb0cea2f17139f72f308e960ddd0f)
@@ -161,4 +161,6 @@
 	/** Data to be used by the backend. */
 	mem_backend_data_t backend_data;
+	
+	as_arch_t arch;
 };
 
@@ -193,4 +195,7 @@
 extern void as_install_arch(as_t *as);
 #endif /* !def as_install_arch */
+#ifndef as_deinstall_arch
+extern void as_deinstall_arch(as_t *as);
+#endif /* !def as_deinstall_arch */
 
 /* Backend declarations. */