quoted

That result was only for patch 18 of the series, not pvspinlock in
general.

Okay - I've re-read the performance numbers and they are impressive, so no
objections from me.

The x86 impact seems to be a straightforward API change, with most of the
changes on the virtualization side. So:

Acked-by: Ingo Molnar <mingo@kernel.org>

I guess you'd want to carry this in the KVM tree or so - maybe in a
separate branch because it changes Xen as well?

Thank you Ingo for taking a relook.

Gleb, Please let me know if you want me to resend the first 17 patches
with acked-bys. i.e excluding the 18th patch.