Re: [Xen-devel] [PATCH v2] xen/smp: Use die_complete completion when taking CPU down

From: H. Peter Anvin
Date: Wed Oct 22 2014 - 11:37:07 EST


On 10/22/2014 08:32 AM, David Vrabel wrote:
> On 16/10/14 17:47, Boris Ostrovsky wrote:
>> Commit 2ed53c0d6cc9 ("x86/smpboot: Speed up suspend/resume by avoiding
>> 100ms sleep for CPU offline during S3") introduced completions to CPU
>> offlining process. These completions are not initialized on Xen kernels
>> causing a panic in play_dead_common().
>>
>> Move handling of die_complete into common routines to make them
>> available to Xen guests.
>>
>> (Also, while at it, move these routines as well as die_complete under
>> ifdef CONFIG_HOTPLUG_CPU)
>
> Reviewed-by: David Vrabel <david.vrabel@xxxxxxxxxx>
>
> I can merge this via the Xen tree if that is preferred.
>

Since it touches non-Xen code I'd rather not.

-hpa


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