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@xxxxxxxxxxxxx> 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@xxxxxxxxxxxxx> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> --- _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
