netdev - Re: [PATCH 0/2] net: Implement SO_PEERCGROUP and SO

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Message-ID: <CALCETrWHA5ZmzOHnz9LO+7v4byc8QiynGyjE_ju5sjokNqrjZA@mail.gmail.com>
Date:	Tue, 22 Apr 2014 13:08:59 -0700
From:	Andy Lutomirski <luto@...capital.net>
To:	David Miller <davem@...emloft.net>
Cc:	Vivek Goyal <vgoyal@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	cgroups@...r.kernel.org,
	Network Development <netdev@...r.kernel.org>,
	Tejun Heo <tj@...nel.org>, Simo Sorce <ssorce@...hat.com>,
	lpoetter@...hat.com, kay@...hat.com,
	Daniel Walsh <dwalsh@...hat.com>
Subject: Re: [PATCH 0/2] net: Implement SO_PEERCGROUP and SO_PASSCGROUP socket options

On Tue, Apr 22, 2014 at 1:05 PM, David Miller <davem@...emloft.net> wrote:
> From: Vivek Goyal <vgoyal@...hat.com>
> Date: Tue, 15 Apr 2014 17:15:44 -0400
>
>> This is another version of patchset to add support passing cgroup
>> information of client over unix socket API.
>
> I'm marking this patch series as "changes requested" in patchwork
> because if we still end up adding this feature SO_PASSCGROUP needs to
> be changed to behave like SO_PASSCRED.
>
> Specifically, like SO_PASSCRED, it should pass the "real" cgroup, ie.
> the cgroup at socket open() time.
>

I suspect that making this change will render it useless,
unfortunately.  I really want to understand the use case.

--Andy
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