Re: [PATCH 6/24] make atomic_read() behave consistently on frv

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Please check the definition of "cache coherence".

Which of the twelve thousand such definitions?  :-)

Summary: the CPU is indeed within its rights to execute loads and stores to a single variable out of order, -but- only if it gets the same result that it would have obtained by executing them in order. Which means that
any reordering of accesses by a single CPU to a single variable will be
invisible to the software.

I'm still not sure if that applies to all architectures.
Doesn't matter anyway, let's kill this thread :-)


Segher

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