Re: [PATCH v2 1/4] meminfo: add a per node counter for balloon drivers

Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> · Fri, 14 Mar 2025 18:06:25 -0700

On Fri, 14 Mar 2025 15:37:54 -0600 Nico Pache <npache@xxxxxxxxxx> wrote:

> Add NR_BALLOON_PAGES counter to track memory used by balloon drivers and
> expose it through /proc/meminfo and other memory reporting interfaces.
> 
> ...
>
> --- 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));

Please update Documentation/filesystems/proc.rst for this.