Ack. It could do with the update from Eric about how non-current CPU writelocks only require preemp-disable around get_counters() (and then the local_bh_disable() only around the current-CPU case). I _think_ get_counters() is the only case that can use that optimization, but it's quite possible that it's worth doing especially for machines with lots of cores, if BH latency is an issue (and it might be). Of course, for the lots-and-lots of cores case, even the preemption disable might be an issue. And then it really does get much more complicated. At that point, you probably want the RCU thing. Linus -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
