Am 18.03.2011 18:07, schrieb Eric Dumazet: > We currently use a percpu spinlock to 'protect' rule bytes/packets > counters, after various attempts to use RCU instead. > > Lately we added a seqlock so that get_counters() can run without > blocking BH or 'writers'. But we really use the seqcount in it. > > Spinlock itself is only locked by the current/owner cpu, so we can > remove it completely. > > This cleanups api, using correct 'writer' vs 'reader' semantic. > > At replace time, the get_counters() call makes sure all cpus are done > using the old table. I think this will have to wait until net-next opens up again since its not a bugfix. -- 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
