Re: [PATCH net-next v5 2/3] bpf: Add bpf_current_task_under_cgroup helper

2016-08-12 Thread Daniel Borkmann
On 08/12/2016 05:56 PM, Sargun Dhillon wrote: This adds a bpf helper that's similar to the skb_in_cgroup helper to check whether the probe is currently executing in the context of a specific subset of the cgroupsv2 hierarchy. It does this based on membership test for a cgroup arraymap. It is

[PATCH net-next v5 2/3] bpf: Add bpf_current_task_under_cgroup helper

2016-08-12 Thread Sargun Dhillon
This adds a bpf helper that's similar to the skb_in_cgroup helper to check whether the probe is currently executing in the context of a specific subset of the cgroupsv2 hierarchy. It does this based on membership test for a cgroup arraymap. It is invalid to call this in an interrupt, and it'll