Re: [RFC][PATCH 4/7 v2] memcg: use res_counter_uncharge_until in move_parent

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On Fri, Apr 27, 2012 at 02:54:58PM +0900, KAMEZAWA Hiroyuki wrote:
> By using res_counter_uncharge_until(), we can avoid 
> unnecessary charging.
> 
> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
> ---
>  mm/memcontrol.c |   63 ++++++++++++++++++++++++++++++++++++------------------
>  1 files changed, 42 insertions(+), 21 deletions(-)
> 
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index 613bb15..ed53d64 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -2420,6 +2420,24 @@ static void __mem_cgroup_cancel_charge(struct mem_cgroup *memcg,
>  }
>  
>  /*
> + * Cancel chages in this cgroup....doesn't propagates to parent cgroup.

             ^typo                                     ^ unnecessary s

-- 
tejun
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