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Date:	Tue, 12 May 2015 14:28:53 +0200
From:	Nicolas Dichtel <nicolas.dichtel@...nd.com>
To:	David Laight <David.Laight@...LAB.COM>,
	"'Eric W. Biederman'" <ebiederm@...ssion.com>,
	"davem@...emloft.net" <davem@...emloft.net>
CC:	Ying Xue <ying.xue@...driver.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"cwang@...pensource.com" <cwang@...pensource.com>,
	"xemul@...nvz.org" <xemul@...nvz.org>,
	"eric.dumazet@...il.com" <eric.dumazet@...il.com>,
	"maxk@....qualcomm.com" <maxk@....qualcomm.com>,
	"stephen@...workplumber.org" <stephen@...workplumber.org>,
	"tgraf@...g.ch" <tgraf@...g.ch>,
	"tom@...bertland.com" <tom@...bertland.com>,
	"jchapman@...alix.com" <jchapman@...alix.com>,
	"erik.hugne@...csson.com" <erik.hugne@...csson.com>,
	"jon.maloy@...csson.com" <jon.maloy@...csson.com>,
	"horms@...ge.net.au" <horms@...ge.net.au>,
	Herbert Xu <herbert@...dor.apana.org.au>
Subject: Re: [PATCH 2/6] net: Add a struct net parameter to sock_create_kern

Le 12/05/2015 13:48, David Laight a écrit :
> From: Eric W. Biederman
>> Sent: 12 May 2015 09:55
>>
>> On May 12, 2015 3:24:11 AM CDT, David Laight <David.Laight@...LAB.COM> wrote:
> ...
>>> Wouldn't it involve far less churn to add a new function that uses a
>>> non-default namespace?
>>
>> The goal is comprehensible and maintainable kernel code.
>>
>> Which network namespace your socket is in, is an important property and something you probably care
>> about if you are creating kernel sockets.
>
> That rather depends on whether you've anywhere to get a namespace from.
> eg something like ceph/messenger.c
sk_net(con->sock->sk)?

This parameter is essential, hiding it will just hides bugs.
Having this parameter forces the developer to ask himself what is the best
value.
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