Re: [BUGFIX][PATCH v3] memcg: fix behavior of per cpu charge cache draining.

[Michal Hocko <mhocko@suse.cz>]

On Fri 10-06-11 21:24:51, Hiroyuki Kamezawa wrote:
> 2011/6/10 Michal Hocko <mhocko@suse.cz>:
> > On Fri 10-06-11 18:59:52, KAMEZAWA Hiroyuki wrote:
[...]
> >> @@ -1670,8 +1670,7 @@ static int mem_cgroup_hierarchical_reclaim(struct mem_cgroup *root_mem,
> >>               victim = mem_cgroup_select_victim(root_mem);
> >>               if (victim == root_mem) {
> >>                       loop++;
> >> -                     if (loop >= 1)
> >> -                             drain_all_stock_async();
> >> +                     drain_all_stock_async(root_mem);
> >>                       if (loop >= 2) {
> >>                               /*
> >>                                * If we have not been able to reclaim
> >
> > This still doesn't prevent from direct reclaim even though we have freed
> > enough pages from pcp caches. Should I post it as a separate patch?
> >
> 
> yes. please in different thread. Maybe moving this out of loop will
> make sense. (And I have a cleanup patch for this loop. I'll do that
> when I post it later, anyway)

OK, I will wait for your cleanup then.
-- 
Michal Hocko
SUSE Labs
SUSE LINUX s.r.o.
Lihovarska 1060/12
190 00 Praha 9    
Czech Republic