On Tue, 26 Nov 2019 at 20:13, David Hildenbrand <david@xxxxxxxxxx> wrote: > > On 25.11.19 15:53, Hao Lee wrote: > > The address of zone has been stored in variable 'zone', so there is no need > > to get it again with a duplicate statement. > > > > --- a/mm/vmscan.c > > +++ b/mm/vmscan.c > > @@ -363,22 +363,21 @@ unsigned long lruvec_lru_size(struct lruvec *lruvec, enum lru_list lru, int zone > > for (zid = zone_idx + 1; zid < MAX_NR_ZONES; zid++) { > > struct zone *zone = &lruvec_pgdat(lruvec)->node_zones[zid]; > > unsigned long size; > > > > if (!managed_zone(zone)) > > continue; > > > > if (!mem_cgroup_disabled()) > > size = mem_cgroup_get_zone_lru_size(lruvec, lru, zid); > > else > > - size = zone_page_state(&lruvec_pgdat(lruvec)->node_zones[zid], > > - NR_ZONE_LRU_BASE + lru); > > + size = zone_page_state(zone, NR_ZONE_LRU_BASE + lru); > > lru_size -= min(size, lru_size); > > } > > > > return lru_size; > > > > } > > Maybe tweak the subject to something meaningful: > > "mm/vmscan: reuse stored zone in lruvec_lru_size()" > > Reviewed-by: David Hildenbrand <david@xxxxxxxxxx> > Thanks. I get it! Regards, Hao Lee