On Thu, Jan 25, 2018 at 11:50 PM, Tejun Heo <t...@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
