Re: [RFC][PATCH] memory controller per zone patches take 2 [2/10] add nid/zid function for page_cgroup

[KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>]

On Sat, 17 Nov 2007 14:45:45 +0530
Balbir Singh <balbir@linux.vnet.ibm.com> wrote:

> KAMEZAWA Hiroyuki wrote:
> > Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
> >  mm/memcontrol.c |   10 ++++++++++
> >  1 file changed, 10 insertions(+)
> > 
> > Index: linux-2.6.24-rc2-mm1/mm/memcontrol.c
> > ===================================================================
> > --- linux-2.6.24-rc2-mm1.orig/mm/memcontrol.c
> > +++ linux-2.6.24-rc2-mm1/mm/memcontrol.c
> > @@ -135,6 +135,16 @@ struct page_cgroup {
> >  #define PAGE_CGROUP_FLAG_CACHE	(0x1)	/* charged as cache */
> >  #define PAGE_CGROUP_FLAG_ACTIVE (0x2)	/* page is active in this cgroup */
> > 
> > +static inline int page_cgroup_nid(struct page_cgroup *pc)
> > +{
> > +	return page_to_nid(pc->page);
> > +}
> > +
> > +static inline int page_cgroup_zid(struct page_cgroup *pc)
> > +{
> > +	return page_zonenum(pc->page);
> 
> page_zonenum returns zone_type, isn't it better we carry the
> type through to the caller?
> 
seems resonable. ok. I will fix.

-Kame

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