From: Michal Kubecek <redacted>
Date: Thu, 1 Aug 2013 00:19:31 +0200

I received the feedback today. The customer reported the patch moving
update of ip6_rt_last_gc into fib6_run_gc() before the call of
fib6_clean_all() was not sufficient to prevent the contention with their
workload.

So I suggest to return back to the approach I submitted originally but
to move the update into fib6_run_gc() anyway so that every run of the
garbage collector updates it. I will submit the patches tomorrow.

Fair enough.