On Fri, Apr 06, 2018 at 04:52:15PM +0300, Andrey Ryabinin wrote: > On 04/06/2018 05:13 AM, Shakeel Butt wrote: > > Question: Should this 'flags' be per-node? Is it ok for a congested > > memcg to call wait_iff_congested for all nodes? > > Indeed, congestion state should be pre-node. If memcg on node A is > congested, there is no point is stalling memcg reclaim from node B. > > Make congestion state per-cgroup-per-node and record it in > 'struct mem_cgroup_per_node'. > > Signed-off-by: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx> Thanks for fixing this, Andrey. This is great. For the combined patch and this fix: Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
