Julia Kartseva
5f8ba20d7f
- Introduce support of cgroup-bpf programs managed (i.e. compiled, loaded to and unloaded from kernel) externally. Systemd is only responsible for attaching programs to unit cgroup hence the name 'foreign'. Foreign BPF programs are identified by bpf program ID and attach type. systemd: - Gets kernel FD of BPF program; - Makes a unique identifier of BPF program from BPF attach type and program ID. Same program IDs mean the same program, i.e the same chunk of kernel memory. Even if the same program is passed multiple times, identical (program_id, attach_type) instances are collapsed into one; - Attaches programs to unit cgroup.
System and Service Manager
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