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

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Message-Id: <20151125.112921.1371682675467323296.davem@davemloft.net>
Date:	Wed, 25 Nov 2015 11:29:21 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	hannes@...xchg.org
Cc:	akpm@...ux-foundation.org, vdavydov@...tuozzo.com, mhocko@...e.cz,
	tj@...nel.org, eric.dumazet@...il.com, netdev@...r.kernel.org,
	linux-mm@...ck.org, cgroups@...r.kernel.org,
	linux-kernel@...r.kernel.org, kernel-team@...com
Subject: Re: [PATCH 10/13] mm: memcontrol: do not account memory+swap on
 unified hierarchy

From: Johannes Weiner <hannes@...xchg.org>
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@...xchg.org>
> Acked-by: Michal Hocko <mhocko@...e.com>
> Reviewed-by: Vladimir Davydov <vdavydov@...tuozzo.com>

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