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SubjectRe: [PATCH v2 1/1] psi: stop relying on timer_pending for poll_work rescheduling
On Wed, Jun 30, 2021 at 01:51:51PM -0700, Suren Baghdasaryan wrote:
> + /* cmpxchg should be called even when !force to set poll_scheduled */
> + if (atomic_cmpxchg(&group->poll_scheduled, 0, 1) && !force)
> return;

Why is that a cmpxchg() ?

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