Re: [PATCH 10/13] mm: memcontrol: do not account memory+swap on unified hierarchy

From: David Miller
Date: Wed Nov 25 2015 - 11:29:46 EST


From: Johannes Weiner <hannes@xxxxxxxxxxx>
Date: Tue, 24 Nov 2015 16:52:02 -0500

> The unified hierarchy memory controller doesn't expose the memory+swap
> counter to userspace, but its accounting is hardcoded in all charge
> paths right now, including the per-cpu charge cache ("the stock").
>
> To avoid adding yet more pointless memory+swap accounting with the
> socket memory support in unified hierarchy, disable the counter
> altogether when in unified hierarchy mode.
>
> Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>
> Acked-by: Michal Hocko <mhocko@xxxxxxxx>
> Reviewed-by: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx>

Acked-by: David S. Miller <davem@xxxxxxxxxxxxx>
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