Re: [PATCH] mm, kvm: account kvm_vcpu_mmap to kmemcg

[Paolo Bonzini]

On 06/11/20 21:52, Roman Gushchin wrote:
> On Fri, Nov 06, 2020 at 12:29:23PM -0800, Shakeel Butt wrote:
> > A VCPU of a VM can allocate couple of pages which can be mmap'ed by the
> > user space application. At the moment this memory is not charged to the
> > memcg of the VMM. On a large machine running large number of VMs or
> > small number of VMs having large number of VCPUs, this unaccounted
> > memory can be very significant. So, charge this memory to the memcg of
> > the VMM. Please note that lifetime of these allocations corresponds to
> > the lifetime of the VMM.
> >
> > Signed-off-by: Shakeel Butt <shakeelb@xxxxxxxxxx>
> > ---
>
> Acked-by: Roman Gushchin <guro@xxxxxx>
>
> Thanks, Shakeel!

Acked-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>

If this patch is not merged via -mm, please ping me again once its 
dependency is part of Linus's tree.

Thanks,

Paolo