Messages in this thread | | | Date | Tue, 20 Sep 2022 10:57:00 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH v2 03/44] cpuidle/poll: Ensure IRQ state is invariant |
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On Mon, Sep 19, 2022 at 03:19:27PM +0200, Frederic Weisbecker wrote: > On Mon, Sep 19, 2022 at 11:59:42AM +0200, Peter Zijlstra wrote: > > cpuidle_state::enter() methods should be IRQ invariant > > Got a bit confused with the invariant thing since the first chunck I > see in this patch is a conversion to an non-traceable local_irq_enable(). > > Maybe just add a short mention about that and why?
Changelog now reads:
--- Subject: cpuidle/poll: Ensure IRQ state is invariant From: Peter Zijlstra <peterz@infradead.org> Date: Tue May 31 15:43:32 CEST 2022
cpuidle_state::enter() methods should be IRQ invariant.
Additionally make sure to use raw_local_irq_*() methods since this cpuidle callback will be called with RCU already disabled.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> ---
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