Messages in this thread | | | Date | Fri, 20 Mar 2015 13:13:56 +0530 | From | Raghavendra K T <> | Subject | Re: [PATCH 9/9] qspinlock,x86,kvm: Implement KVM support for paravirt qspinlock |
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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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