> Once stop_machine() is gone from the CPU offline path, we won't be able > to depend on disabling preemption to prevent CPUs from going offline > from under us. Could you use an rcu-like sequence so that disabling pre-emption would be enough? Something like rebuilding the cpu list, then forcing yourself to run on all the cpu. That would be far less intrusive. David -- 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
