* KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> [2010-07-21 22:33:56]:
> > > +static inline int zone_nid(struct zone *zone)
> > > +{
> > > + return zone->zone_pgdat->node_id;
> > > +}
> > > +
> >
> > hmm, adding a helper and not converting the existing users of
> > zone->zone_pgdat may be a little confusing particularly as both types of
> > usage would exist in the same file e.g. in mem_cgroup_zone_nr_pages.
>
> I see. here is incrementa patch.
>
> Thanks
>
> From 62cf765251af257c98fc92a58215d101d200e7ef Mon Sep 17 00:00:00 2001
> From: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
> Date: Tue, 20 Jul 2010 11:30:14 +0900
> Subject: [PATCH] memcg: convert to zone_nid() from bare zone->zone_pgdat->node_id
>
> Now, we have zone_nid(). this patch convert all existing users of
> zone->zone_pgdat.
>
> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
> ---
> mm/memcontrol.c | 6 +++---
> 1 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index 82e191f..3d5b645 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -951,7 +951,7 @@ unsigned long mem_cgroup_zone_nr_pages(struct mem_cgroup *memcg,
> struct zone *zone,
> enum lru_list lru)
> {
> - int nid = zone->zone_pgdat->node_id;
> + int nid = zone_nid(zone);
> int zid = zone_idx(zone);
> struct mem_cgroup_per_zone *mz = mem_cgroup_zoneinfo(memcg, nid, zid);
>
> @@ -961,7 +961,7 @@ unsigned long mem_cgroup_zone_nr_pages(struct mem_cgroup *memcg,
> struct zone_reclaim_stat *mem_cgroup_get_reclaim_stat(struct mem_cgroup *memcg,
> struct zone *zone)
> {
> - int nid = zone->zone_pgdat->node_id;
> + int nid = zone_nid(zone);
> int zid = zone_idx(zone);
> struct mem_cgroup_per_zone *mz = mem_cgroup_zoneinfo(memcg, nid, zid);
>
> @@ -1006,7 +1006,7 @@ unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan,
> LIST_HEAD(pc_list);
> struct list_head *src;
> struct page_cgroup *pc, *tmp;
> - int nid = z->zone_pgdat->node_id;
> + int nid = zone_nid(z);
> int zid = zone_idx(z);
> struct mem_cgroup_per_zone *mz;
> int lru = LRU_FILE * file + active;
Acked-by: Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx>
--
Three Cheers,
Balbir
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