Messages in this thread | | | Date | Fri, 13 May 2011 11:23:09 +0200 | From | Michal Hocko <> | Subject | Re: [rfc patch 1/6] memcg: remove unused retry signal from reclaim |
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On Thu 12-05-11 16:53:53, Johannes Weiner wrote: > If the memcg reclaim code detects the target memcg below its limit it > exits and returns a guaranteed non-zero value so that the charge is > retried. > > Nowadays, the charge side checks the memcg limit itself and does not > rely on this non-zero return value trick. > > This patch removes it. The reclaim code will now always return the > true number of pages it reclaimed on its own. > > Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Makes sense Reviewed-by: Michal Hocko <mhocko@suse.cz>
> --- > mm/memcontrol.c | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > diff --git a/mm/memcontrol.c b/mm/memcontrol.c > index 010f916..bf5ab87 100644 > --- a/mm/memcontrol.c > +++ b/mm/memcontrol.c > @@ -1503,7 +1503,7 @@ static int mem_cgroup_hierarchical_reclaim(struct mem_cgroup *root_mem, > if (!res_counter_soft_limit_excess(&root_mem->res)) > return total; > } else if (mem_cgroup_margin(root_mem)) > - return 1 + total; > + return total; > } > return total; > } > -- > 1.7.5.1 >
-- Michal Hocko SUSE Labs SUSE LINUX s.r.o. Lihovarska 1060/12 190 00 Praha 9 Czech Republic
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