Re: vmstat: On demand vmstat workers V8

[Frederic Weisbecker]

On Fri, Jul 11, 2014 at 08:56:04AM -0500, Christoph Lameter wrote:
> On Fri, 11 Jul 2014, Frederic Weisbecker wrote:
> 
> > > @@ -1228,20 +1244,105 @@ static const struct file_operations proc
> > >  #ifdef CONFIG_SMP
> > >  static DEFINE_PER_CPU(struct delayed_work, vmstat_work);
> > >  int sysctl_stat_interval __read_mostly = HZ;
> > > +struct cpumask *cpu_stat_off;
> >
> > I thought you converted it?
> 
> Converted what? We still need to keep a cpumask around that tells us which
> processor have vmstat running and which do not.
> 

Converted to cpumask_var_t.

I mean we spent dozens emails on that...
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