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SubjectRe: [PATCH 4/4] Memory controller soft limit reclaim on contention (v3)
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Hi Balbir,

> @@ -2015,9 +2016,12 @@ static int kswapd(void *p)
> finish_wait(&pgdat->kswapd_wait, &wait);
>
> if (!try_to_freeze()) {
> + struct zonelist *zl = pgdat->node_zonelists;
> /* We can speed up thawing tasks if we don't call
> * balance_pgdat after returning from the refrigerator
> */
> + if (!order)
> + mem_cgroup_soft_limit_reclaim(zl, GFP_KERNEL);
> balance_pgdat(pgdat, order);
> }
> }

kswapd's roll is increasing free pages until zone->pages_high in "own node".
mem_cgroup_soft_limit_reclaim() free one (or more) exceed page in any node.

Oh, well.
I think it is not consistency.

if mem_cgroup_soft_limit_reclaim() is aware to target node and its pages_high,
I'm glad.






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