On Fri, Apr 8, 2022 at 2:42 PM Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:
>
> On Fri, 8 Apr 2022 10:53:53 -0700
> Kalesh Singh <kaleshsingh@xxxxxxxxxx> 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 ;-)
Thanks for verifying Steve. I'll update the commit and Kconfig texts
accordingly.
-Kalesh
>
> -- Steve
>
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