Re: [Xen-devel] [PATCH 4/6] replace vCPU's dirty CPU mask by numeric ID

[George Dunlap <george.dunlap@xxxxxxxxxx>]

On 01/19/2018 04:06 PM, Jan Beulich wrote:
> At most one bit can be set in the masks, so especially on larger systems
> it's quite a bit of unnecessary memory and processing overhead to track
> the information as a mask. Store the numeric ID of the respective CPU
> instead, or NR_CPUS if no dirty state exists.
> 
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

I like it:

Reviewed-by: George Dunlap <george.dunlap@xxxxxxxxxx>

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