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Date:	Fri, 16 Dec 2011 01:13:16 +0900
From:	KAMEZAWA Hiroyuki <>
To:	Glauber Costa <>
	Eric Dumazet <>,
	Stephen Rothwell <>
Subject: Re: [PATCH 2/2] Explicitly call tcp creation and init from

On Thu, 15 Dec 2011 13:34:32 +0400
Glauber Costa <> wrote:

> Walking the proto_list holds a read_lock, which prevents us from doing
> allocations. Splitting the tcp create function into create + init is
> good, but it is not enough since create_files will do allocations as well
> (dentry ones, mostly).
> Since this does not involve any protocol state, I propose we call the tcp
> functions explicitly from memcontrol.c
> With this, we lose by now the ability of doing cgroup memcontrol for
> protocols that are loaded as modules. But at least the ones I have in mind
> won't really need it (tcp_ipv6 being the only one, but it uses the same data
> structures as tcp_ipv4). So I believe this to be the simpler solution to this
> problem.
> Signed-off-by: Glauber Costa <>
> CC: Hiroyouki Kamezawa <>
> CC: David S. Miller <>
> CC: Eric Dumazet <>
> CC: Stephen Rothwell <>

Could you remake the patch onto the 'latest' linux-next ?
As Dave mentioned, some bandaids are already applied and this patch hunks.


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