On Mon, May 16, 2016 at 04:31:08PM +0100, Dietmar Eggemann wrote: > On 09/05/16 11:48, Peter Zijlstra wrote: > > Couldn't you just always access sd->shared via > sd = rcu_dereference(per_cpu(sd_llc, cpu)) for > updating nr_busy_cpus?
Sure; but why would I want to add that extra dereference? Note that in the next patch I add more users of sd_llc_shared.
