netdev - Re: [PATCH net] bpf: fix bpf_skb_in

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Message-Id: <20160812.215356.268607618202188381.davem@davemloft.net>
Date:	Fri, 12 Aug 2016 21:53:56 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	daniel@...earbox.net
Cc:	alexei.starovoitov@...il.com, kafai@...com, tj@...nel.org,
	sargun@...gun.me, netdev@...r.kernel.org
Subject: Re: [PATCH net] bpf: fix bpf_skb_in_cgroup helper naming

From: Daniel Borkmann <daniel@...earbox.net>
Date: Fri, 12 Aug 2016 22:17:17 +0200

> While hashing out BPF's current_task_under_cgroup helper bits, it came
> to discussion that the skb_in_cgroup helper name was suboptimally chosen.
> 
> Tejun says:
> 
>   So, I think in_cgroup should mean that the object is in that
>   particular cgroup while under_cgroup in the subhierarchy of that
>   cgroup. Let's rename the other subhierarchy test to under too. I
>   think that'd be a lot less confusing going forward.
> 
>   [...]
> 
>   It's more intuitive and gives us the room to implement the real
>   "in" test if ever necessary in the future.
> 
> Since this touches uapi bits, we need to change this as long as v4.8
> is not yet officially released. Thus, change the helper enum and rename
> related bits.
> 
> Fixes: 4a482f34afcc ("cgroup: bpf: Add bpf_skb_in_cgroup_proto")
> Reference: http://patchwork.ozlabs.org/patch/658500/
> Suggested-by: Sargun Dhillon <sargun@...gun.me>
> Suggested-by: Tejun Heo <tj@...nel.org>
> Signed-off-by: Daniel Borkmann <daniel@...earbox.net>

Applied.