2004-07-20  Dave Brolley  <brolley@redhat.com>

	* cacheutil.cxx (find): Make sure cache line is valid before returning
	it.
	* cache.cxx (write_any): Move call to addr_to_tag to a later point when
	the result is actually needed. Make sure cache line is valid before
	flushing it.
	(read_any): Make sure cache line is valid before flushing it.