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Date:	Wed, 21 May 2014 16:31:13 -0400 (EDT)
From:	David Miller <>
Subject: Re: [patch net-next] net: ipv6: trigger action when setting
 conf.all sysctls

From: Cong Wang <>
Date: Wed, 21 May 2014 10:35:17 -0700

> On Mon, May 19, 2014 at 10:09 AM, Milos Vyletel <> wrote:
>> As it is right now most of these tunables don't do anything - they don't
>> set any interface specific settings to the desired value and they don't
>> take precedence before device specific settings in most cases.
>> Documentation/networking/ip-sysctl.txt defines them to be:
>> conf/all/*:
>>         Change all the interface-specific settings.
>> but that is not really the case.
> I don't think it's a good idea, it enforces interface specific changes.
> You need to mimic what IPv4 conf does (if it hasn't done yet), something
> like below:
> #define IN_DEV_MAXCONF(in_dev, attr) \
>         (max(IPV4_DEVCONF_ALL(dev_net(in_dev->dev), attr), \
>              IN_DEV_CONF_GET((in_dev), attr)))

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