Peter Zijlstra wrote:
The double unmap gives a preemption point, which sounds like a good thing to have, because your scheme could run for a long while without enabling preemption, which is badness.
Thanks, optimizing my loop, I forgot all about the old long code path not preempting problem. Now I have to love the patch for making it harder to be stupid :) -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html