[PATCH v2 08/44] cpuidle,imx6: Push RCU-idle into driver

Peter Zijlstra peterz at infradead.org
Tue Sep 20 01:58:59 PDT 2022


On Mon, Sep 19, 2022 at 04:21:23PM +0200, Frederic Weisbecker wrote:
> On Mon, Sep 19, 2022 at 11:59:47AM +0200, Peter Zijlstra wrote:
> > Doing RCU-idle outside the driver, only to then temporarily enable it
> > again, at least twice, before going idle is daft.
> 
> Hmm, what ends up calling RCU_IDLE() here? Also what about
> cpu_do_idle()?

I've ammended patches 5-12 with a comment like:

Notably both cpu_pm_enter() and cpu_cluster_pm_enter() implicity
re-enable RCU.

(each noting the specific sites for the relevant patch).



More information about the linux-riscv mailing list