Re: [PATCH 9/9] qspinlock,x86,kvm: Implement KVM support for paravirt qspinlock

[Raghavendra K T]

On 03/20/2015 02:38 AM, Waiman Long wrote:
> On 03/19/2015 06:01 AM, Peter Zijlstra wrote:
[...]
> You are probably right. The initial apply_paravirt() was done before the
> SMP boot. Subsequent ones were at kernel module load time. I put a
> counter in the __native_queue_spin_unlock() and it registered 26949
> unlock calls in a 16-cpu guest before it got patched out.

because even printks take lock..

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