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SubjectRe: Improve preempt-scheduling and x86 user access v3

* Andi Kleen <andi@firstfloor.org> wrote:

> Various optimizations related to CONFIG_PREEMPT_VOLUNTARY and x86
> uaccess

Looks mostly good.

Does this patchset change the number of cond_resched() preemption points
on CONFIG_PREEMPT_VOLUNTARY=y, or is it a scheduling invariant?

Thanks,

Ingo


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