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SubjectRe: [RFC PATCH for 4.17 02/21] rseq: Introduce restartable sequences system call (v12)
On Tue, Mar 27, 2018 at 12:05:23PM -0400, Mathieu Desnoyers wrote:
> diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
> index fb5fc458547f..66b070444a7e 100644
> --- a/kernel/sched/sched.h
> +++ b/kernel/sched/sched.h
> @@ -1249,6 +1249,7 @@ static inline void __set_task_cpu(struct task_struct *p, unsigned int cpu)
> #endif
> p->wake_cpu = cpu;
> #endif
> + rseq_migrate(p);
> }

I think you want that in set_task_cpu(), right next to nr_migrations++.

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