Re: [PATCH tip/sched/core v2] sched/rt: Simplify the IPI rt balancing logic

[Peter Zijlstra]

On Mon, Apr 24, 2017 at 11:47:32AM -0400, Steven Rostedt wrote:
> +     /* Keep the loop going if the IPI is currently active */
> +     atomic_inc_return(&rq->rd->rto_loop_next);

What's the return for?