There are a number of stats that were previously accessible via zoneinfo
that are now invisible. While it is possible to create a new file for the
node stats, this may be missed by users. Instead this patch prints the
stats under the first populated zone in /proc/zoneinfo.
Signed-off-by: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Acked-by: Hillf Danton <hillf.zj@xxxxxxxxxxxxxxx>