[RFC/PATCH v5 5/7] ARM: ARM11 MPCore: cpu_v6_dcache_clean_area needs RFO

[Russell King - ARM Linux]

On Wed, Jun 13, 2012 at 10:32:18AM +0100, Catalin Marinas wrote:
> Alternatively, we could disable the interrupts around RFO and D-cache
> cleaning (inside the loop), though I think the preempt disabling is
> faster.

It also has the *important* effect that it doesn't cause problems with
interrupt latency, which is a real concern if you have peripherals
requiring quick servicing.