On Wed, May 18, 2016 at 02:02:36PM +0200, Arnd Bergmann wrote: > It's the missing "possible_" that Mark mentioned in his reply on Friday.
Actually, that was this morning. My VM on my laptop had a stale date due to suspend/resume of the host. :/ I should be back at a real computer by Friday, and can respin the patch to fix the issue Andrey pointed out. Thanks for the fixup, and sorry for the confusion! Mark. > Please fold the fixup below into the patch if you want to get it to build. > > Signed-off-by: Arnd Bergmann <a...@arndb.de > > diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h > index fd6b0f701bed..bb137b0ef6f3 100644 > --- a/kernel/rcu/tree_plugin.h > +++ b/kernel/rcu/tree_plugin.h > @@ -1165,7 +1165,7 @@ static void rcu_boost_kthread_setaffinity(struct > rcu_node *rnp, int outgoingcpu) > return; > if (!zalloc_cpumask_var(&cm, GFP_KERNEL)) > return; > - for_each_leaf_node_cpu_bit(rnp, cpu, bit) > + for_each_leaf_node_possible_cpu_bit(rnp, cpu, bit) > if ((mask & bit) && cpu != outgoingcpu) > cpumask_set_cpu(cpu, cm); > if (cpumask_weight(cm) == 0) >