Messages in this thread | | | From | Yafang Shao <> | Date | Thu, 25 Jan 2018 23:56:18 +0800 | Subject | Re: [PATCH bpf-next] cgroup: support attaching eBPF programs to net_prio cgroup |
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On Thu, Jan 25, 2018 at 11:50 PM, Tejun Heo <tj@kernel.org> wrote: > On Thu, Jan 25, 2018 at 11:38:48PM +0800, Yafang Shao wrote: >> If net_prio is used, we could also use eBPF programs to attach it, >> because the net_prio cgroup could be got with prioidx in struct >> sock_cgroup_data. >> Hence it should not only be limited to cgroup2. > > I really don't wanna do this. This comes with all sorts of reverse > lookup and naming issues. In addition, cgroup1 and 2 aren't mutually > exclusive. If the use case is on cgroup1 and wants to use cgroup bpf > programs, just replicate the cgroup2 hierarchy for bpf. Hierarchy > replication across different controllers is how most use cgroup1 after > all. With recent versions of systemd which defaults to using cgroup2 > for process management, you get the replication for free too. >
Hi Tejun,
I don't understand what do you mean Hierarchy replication. Could you pls. show me some examples ?
Thanks Yafang
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