On Tue, Jul 17, 2018 at 05:17:05PM +0200, Peter Zijlstra wrote:
> On Thu, Jul 12, 2018 at 01:29:40PM -0400, Johannes Weiner wrote:
> > @@ -457,6 +457,22 @@ config TASK_IO_ACCOUNTING
> >
> > Say N if unsure.
> >
> > +config PSI
> > + bool "Pressure stall information tracking"
> > + select SCHED_INFO
>
> What's the deal here? AFAICT it does not in fact use SCHED_INFO for
> _anything_. You just hooked into the sched_info_{en,de}queue() hooks,
> but you don't use any of the sched_info data.
>
> So the dependency is an artificial one that should not exist.
You're right, it doesn't strictly depend on it. I'll split that out.
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