Re: [PATCH 1/2] KVM: fix cache stale memslot info with correct mmio generation number

From: Paolo Bonzini
Date: Mon Aug 18 2014 - 17:24:46 EST


Il 18/08/2014 23:15, David Matlack ha scritto:
> I just realized how simple Paolo's idea is. I think it can be a one line
> patch (without comments):
>
> [...]
> update_memslots(slots, new, kvm->memslots->generation);
> rcu_assign_pointer(kvm->memslots, slots);
> synchronize_srcu_expedited(&kvm->srcu);
> + slots->generation++;
>
> kvm_arch_memslots_updated(kvm);
> [...]

Yeah, you're right. I think at this point it makes sense to put all
generation handling in install_new_memslots, but with proper comments
the above can do as well.

Would you like to send it? Patch 2 still applies on top.
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