On -RT we see a double wake up if the waiter has a higher priority than the process doing the wake up. Patch #1 avoids in the PI wake code, #2 in the non-PI variant (and only for one waiter).
#3 is a small optimisation for message queues avoid a "cpu_relax()" loop. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
