- Set `inherit = 1` only for per-task perf event. Inspired from change
  https://github.com/torvalds/linux/commit/81b9cf8028a17bdbdaa0da80b735b32150d4e89e
- Kernel now support more events (see #1448). Also it's checked in
  `bpf_attach_perf_event` already. Remove the check from C++ API