Looking at that closure stuff, why is there an smp_mb() in closure_wake_up() ? Typically wakeup only needs to imply a wmb.
Also note that __closure_wake_up() starts with a fully serializing instruction (xchg) and thereby already implies the full barrier. -- 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/
