On Wed, 1 Mar 2017 09:37:01 +0100
Peter Zijlstra wrote:
> On Tue, Feb 28, 2017 at 04:48:56PM -0500, Steven Rostedt wrote:
>
> > + /*
> > +* Normally, has_pushable_tasks() would be performed within the
> > +* runqueue lock being held. But if it was not set when entering
>
> "not set"
On Tue, Feb 28, 2017 at 04:48:56PM -0500, Steven Rostedt wrote:
> + /*
> + * Normally, has_pushable_tasks() would be performed within the
> + * runqueue lock being held. But if it was not set when entering
"not set" what? I'm having trouble parsing this.
> + * this hard interr
From: Steven Rostedt (VMware)
While reviewing the RT scheduling IPI logic, I was thinking that it was
a bug that has_pushable_tasks(rq) was not called under the runqueue
lock. But then I realized that there isn't a case where a race would
cause a problem, as to update has_pushable_tasks() would
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