On 04/06/21 09:21, Vitaly Kuznetsov wrote:
preempt_notifier_inc();
+ kvm_init_pm_notifier(kvm);
You've probably thought it through and I didn't but wouldn't it be
easier to have one global pm_notifier call for KVM which would go
through the list of VMs instead of registering/deregistering a
pm_notifier call for every created/destroyed VM?
That raises questions on the locking, i.e. if we can we take the
kvm_lock safely from the notifier.
Paolo
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