linux-kernel - Re: [PATCH 06/14] net: tcp_memcontrol: remove dead per-memcg count of allocated sockets

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Message-Id: <20151113.110137.1839985112517581850.davem@davemloft.net>
Date:	Fri, 13 Nov 2015 11:01:37 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	hannes@...xchg.org
Cc:	akpm@...ux-foundation.org, vdavydov@...tuozzo.com, tj@...nel.org,
	mhocko@...e.cz, netdev@...r.kernel.org, linux-mm@...ck.org,
	cgroups@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel-team@...com
Subject: Re: [PATCH 06/14] net: tcp_memcontrol: remove dead per-memcg count
 of allocated sockets

From: Johannes Weiner <hannes@...xchg.org>
Date: Thu, 12 Nov 2015 18:41:25 -0500

> The number of allocated sockets is used for calculations in the soft
> limit phase, where packets are accepted but the socket is under memory
> pressure. Since there is no soft limit phase in tcp_memcontrol, and
> memory pressure is only entered when packets are already dropped, this
> is actually dead code. Remove it.
> 
> As this is the last user of parent_cg_proto(), remove that too.
> 
> Signed-off-by: Johannes Weiner <hannes@...xchg.org>

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