Re: [RFC 1/5] meminfo: add a per node counter for balloon drivers

[Michael S. Tsirkin]

On Wed, Mar 12, 2025 at 11:19:06PM +0100, David Hildenbrand wrote:
> On 12.03.25 01:06, Nico Pache wrote:
> > Add NR_BALLOON_PAGES counter to track memory used by balloon drivers and
> > expose it through /proc/meminfo and other memory reporting interfaces.
> 
> In balloon_page_enqueue_one(), we perform a
> 
> __count_vm_event(BALLOON_INFLATE)
> 
> and in balloon_page_list_dequeue
> 
> __count_vm_event(BALLOON_DEFLATE);
> 
> 
> Should we maybe simply do the per-node accounting similarly there?


BTW should virtio mem be tied into this too, in some way? or is it too
different?

> -- 
> Cheers,
> 
> David / dhildenb