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On Thu, 6 Jul 2006, Chris Friesen wrote: > > As long as you're not talking to external devices, each cpu must be coherent > with respect to itself, no? It's allowed to execute out-of-order, but it > needs to make sure that by doing so it doesn't cause changes that are visible > to software. Right. But then "volatile" won't really matter either, unless you have some _ordering_ constraint, in which case "volatile" is not enough unless you're guaranteed to be single-threaded. In other words, again, "volatile" is almost always the wrong thing to have, and just makes you _think_ your code is correct. Linus - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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