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SubjectRe: [PATCH v2] EXP rcu: Move expedited grace period (GP) work to RT kthread_worker
On Fri, 8 Apr 2022 10:53:53 -0700
Kalesh Singh <kaleshsingh@google.com> wrote:

> If PREEMT_RT systems don’t disable expedited grace periods, we can
> remove default off for those. Steve?

Yep, commit 36221e109eb20 ("rcu: Enable rcu_normal_after_boot
unconditionally for RT") is still there.

OK, that explains it. I missed that change, so I didn't see the relation to
PREEMPT_RT. It wasn't described in the change log nor was there any
comment in the kconfig to say why it was special. Perhaps that should be
added for those that don't know all this tribal knowledge ;-)

-- Steve

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