Messages in this thread | | | Date | Wed, 18 May 2016 11:41:55 -0700 | From | "Paul E. McKenney" <> | Subject | Re: [PATCHv2] rcu: tree: correctly handle sparse possible CPUs |
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On Wed, May 18, 2016 at 07:15:09PM +0100, Mark Rutland wrote: > 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 <arnd@arndb.de
Thank you both!
Looking forward to the respin that covers the various issues that have been located.
Thanx, Paul
> > 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) > > >
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