Re: [PATCH 3/6] KVM MMU: optimize/cleanup for marking parent unsync

[Xiao Guangrong]

Marcelo Tosatti wrote:

> Xiao,
> 
> Did you actually see this codepath as being performance sensitive? 

Actually, i not run benchmarks to contrast the performance before this patch
and after this patch.

> 
> I'd prefer to not touch it.

This patch avoids walk all parents and i think this overload is really unnecessary.
It has other tricks in this codepath but i not noticed? :-)

Thanks,
Xiao
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