Martin Schwidefsky writes: > The minor fault path has grown a lot in terms of cycles. In particular > the kprobes hook is very costly. Optimize the path to save a couple of > cycles. If kprobes is enabled more than 300 cycles can be avoided if > kprobes_running() is false. There's no good reason to use a notifier for page faults, since there's only one external piece of code that wants to know about them... Regards, Paul. - To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html