# Re: \[PATCH 4/5\] sock, cgroup: add sock-\>sk\_cgroup

- From: David Miller \<hidden\>
- Date: 2015-11-17 21:25:59 
- List: netdev
- Page: https://ratatoskr.run/netdev/2015/11/4622762
- Thread: https://ratatoskr.run/netdev/2015/11/4622696/t.md

```text
From: Tejun Heo <redacted>
Date: Tue, 17 Nov 2015 14:40:39 -0500

> In preparation, this patch adds sock->sk_cgroup which points to the
> associated cgroup.  A sock is associated on creation and stays
> associated to the same cgroup until freed; unfortunately, this ends up
> adding another cgroup field to struct sock on top of sk_cgrp_prioidx
> and sk_classid.  I tried to think of a way to somehow overload the
> existing fields but couldn't come up with a reasonable one.

sk->sk_cgrp_prioidx is simply sk->sk_cgroup->id, is it not?

We really need to consolidate this before we stuff even more members
into the socket for control group support, sorry.
```