Re: [PATCH 2/2] net: Implement SO_PASSCGROUP to enable passing cgroup path

[Andy Lutomirski]

On Thu, Apr 17, 2014 at 11:50 AM, Vivek Goyal <vgoyal@xxxxxxxxxx> wrote:
> On Thu, Apr 17, 2014 at 02:23:33PM -0400, Simo Sorce wrote:
>> Perhaps this could be done with a sendmsg() header flag or simplified
>> ancillary data even, rather than forcing the sender process to retrieve
>> and construct the whole information which is already available in
>> kernel.
>
> So what would be the protocol here? When should somebody send an
> SCM_CGROUP message using sendmsg()?
>

Presumably whenever it knows talking to someone who cares about the
cgroup.  Since I don't understand why you would want to know someone's
cgroup when speaking a protocol that didn't previously require cgroup
infomation, I don't really have a good answer for you.

--Andy
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