From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH net-next] tcp: Namespace-ify
 sysctl_tcp_default_congestion_control
Date: Mon, 13 Nov 2017 10:27:00 +0900 (KST)
Message-ID: <20171113.102700.2072956247690538502.davem@davemloft.net>
References: <20171110012637.2454-1-sthemmin@microsoft.com>
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From: Stephen Hemminger <stephen@networkplumber.org>
Date: Fri, 10 Nov 2017 10:26:37 +0900

> Make default TCP default congestion control to a per namespace
> value. The congestion control setting of new namespaces is inherited
> from the root namespace. Modules are only autoloaded in the root namespace.
> 
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

I have to think some more about this and the semantics you've choosen.

Is it really buying us anything to restrict the module load to the
initial namespace?  Unless it's really required this makes things like
running tests in sub-namespaces unnecessarily cumbersome.