On Thu, Oct 03, 2013 at 04:01:50PM +0200, Peter Zijlstra wrote:
> On Wed, Oct 02, 2013 at 04:56:56PM +0200, Peter Zijlstra wrote:
> > + if (atomic_dec_and_test(&cpuhp_waitcount))
> > + wake_up(&cpuhp_writer);
> > +
> > + goto again:
> > }
>
> > +
> > +#define per_cpu_sum(var) \
> > +({
> > \
> > + typeof(var) __sum = 0; \
> > + int cpu; \
> > + for_each_possible_cpu(cpu) \
> > + __sum += per_cpu(var, cpu); \
> > + __sum; \
> > +)}
> >
>
> I just noticed I forgot a refresh..
And including these changes as well. ;-)
Thanx, Paul
> +++ b/kernel/cpu.c
> @@ -120,7 +120,7 @@ void __get_online_cpus(void)
> if (atomic_dec_and_test(&cpuhp_waitcount))
> wake_up(&cpuhp_writer);
>
> - goto again:
> + goto again;
> }
> EXPORT_SYMBOL_GPL(__get_online_cpus);
>
> @@ -146,7 +146,7 @@ EXPORT_SYMBOL_GPL(__put_online_cpus);
> for_each_possible_cpu(cpu) \
> __sum += per_cpu(var, cpu); \
> __sum; \
> -)}
> +})
>
> /*
> * See srcu_readers_active_idx_check() for a rather more detailed
> explanation.
>
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