Re: [PATCH] mm: memcg: remove checking reclaim order in soft limit reclaim

From: Hillf Danton
Date: Tue Jan 17 2012 - 08:29:52 EST


On Tue, Jan 17, 2012 at 9:16 PM, Michal Hocko <mhocko@xxxxxxx> wrote:
> Hi,
>
> On Tue 17-01-12 20:47:59, Hillf Danton wrote:
>> If async order-O reclaim expected here, it is settled down when setting up scan
>> control, with scan priority hacked to be zero. Other than that, deny of reclaim
>> should be removed.
>
> Maybe I have misunderstood you but this is not right. The check is to
> protect from the _global_ reclaim with order > 0 when we prevent from
> memcg soft reclaim.
>
need to bear mm hog in this way?

Thanks
Hillf
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