On Saturday 12 January 2008 18:51:35 Benjamin LaHaise wrote: > On Sat, Jan 12, 2008 at 03:37:59AM +0100, Andi Kleen wrote: > > > And yes, the > > > network stack shouldn't call synchronize_rcu() quite so much, but fixing that > > > is a little more involved. > > > > ... but the correct solution. > > There has to be at least 1 synchronize_rcu() or equivalent in the > unregister_netdev() path. I suspect the easiest way to fix it might be to > use call_rcu() to actually free the network device, as anything else will > limit performance of single threaded teardown (ie, when an l2tp daemon > gets terminated via kill -9). This means an API change that exposes > rcu for unregister_netdev(). The call_rcu() could be in free_netdev() couldn't it? -Andi - 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
