Re: [PATCH 4/5] sock, cgroup: add sock->sk_cgroup

From: David Miller
Date: Tue Nov 17 2015 - 16:26:03 EST

From: Tejun Heo <tj@xxxxxxxxxx>
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.
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