Re: [Xen-devel] [PATCH] xen-evtchn: Bind dyn evtchn:qemu-dm interrupt to next online VCPU

[Anoob Soman <anoob.soman@xxxxxxxxxx>]

On 02/06/17 16:10, Juergen Gross wrote:
> I'd prefer the to have irq disabled from taking the lock until here.
> This will avoid problems due to preemption and will be faster as it
> avoids one irq on/off cycle. So:
>
> local_irq_disable();
> raw_spin_lock();
> ...
> raw_spin_unlock();
> this_cpu_write();
> xen_rebind_evtchn_to_cpu();
> local_irq_enable();
>
>
> Juergen

Agreed, I will send a V2 with your suggestion.


-Anoob.


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