Missing cache flush.

[David S. Miller]

David Woodhouse writes:
 > What shall we call this function? The intuitive "flush_dcache_range" appears
 > to have already been taken.

Call it flush_ecache_full() or something.

Many architectures need to implement this anyways if they have
parity error exception handling.  Most platforms sadly do not.
Sparc64 is one of the exceptions here...

Later,
David S. Miller
davem at redhat.com