On Tue, Mar 11, 2025 at 10:21 PM Shakeel Butt <shakeel.butt@xxxxxxxxx> wrote:
>
> On Tue, Mar 11, 2025 at 06:06:56PM -0600, 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.
> >
> > Signed-off-by: Nico Pache <npache@xxxxxxxxxx>
> > ---
> > fs/proc/meminfo.c | 2 ++
> > include/linux/mmzone.h | 1 +
> > mm/memcontrol.c | 1 +
> > mm/show_mem.c | 4 +++-
> > mm/vmstat.c | 1 +
> > 5 files changed, 8 insertions(+), 1 deletion(-)
> >
> > diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
> > index 8ba9b1472390..83be312159c9 100644
> > --- a/fs/proc/meminfo.c
> > +++ b/fs/proc/meminfo.c
> > @@ -162,6 +162,8 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
> > show_val_kb(m, "Unaccepted: ",
> > global_zone_page_state(NR_UNACCEPTED));
> > #endif
> > + show_val_kb(m, "Balloon: ",
> > + global_node_page_state(NR_BALLOON_PAGES));
> >
> > hugetlb_report_meminfo(m);
> >
> > diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
> > index 9540b41894da..71d3ff19267a 100644
> > --- a/include/linux/mmzone.h
> > +++ b/include/linux/mmzone.h
> > @@ -223,6 +223,7 @@ enum node_stat_item {
> > #ifdef CONFIG_HUGETLB_PAGE
> > NR_HUGETLB,
> > #endif
> > + NR_BALLOON_PAGES,
> > NR_VM_NODE_STAT_ITEMS
> > };
> >
> > diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> > index 4de6acb9b8ec..182b44646bfa 100644
> > --- a/mm/memcontrol.c
> > +++ b/mm/memcontrol.c
> > @@ -1377,6 +1377,7 @@ static const struct memory_stat memory_stats[] = {
> > #ifdef CONFIG_HUGETLB_PAGE
> > { "hugetlb", NR_HUGETLB },
> > #endif
> > + { "nr_balloon_pages", NR_BALLOON_PAGES },
>
> Please remove the above counter from memcontrol.c as I don't think this
> memory is accounted towards memcg.
Fixed-- Thank you!
>
