On Mon, 4 Jan 2016 21:25:46 -0500 Sasha Levin <sasha.levin@xxxxxxxxxx> wrote: > When we need to lock all buckets in the connection hashtable we'd attempt to > lock 1024 spinlocks, which is way more preemption levels than supported by > the kernel. Furthermore, this behavior was hidden by checking if lockdep is > enabled, and if it was - use only 8 buckets(!). > > Fix this by using a global lock and synchronize all buckets on it when we > need to lock them all. This is pretty heavyweight, but is only done when we > need to resize the hashtable, and that doesn't happen often enough (or at all). > > Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx> > --- Looks good to me, and I like the idea. Acked-by: Jesper Dangaard Brouer <brouer@xxxxxxxxxx> -- Best regards, Jesper Dangaard Brouer MSc.CS, Principal Kernel Engineer at Red Hat Author of http://www.iptv-analyzer.org LinkedIn: http://www.linkedin.com/in/brouer -- 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
