sys_write_seen 25 samples/bpf/trace_event_user.c static bool sys_read_seen, sys_write_seen; sys_write_seen 43 samples/bpf/trace_event_user.c sys_write_seen = true; sys_write_seen 107 samples/bpf/trace_event_user.c sys_read_seen = sys_write_seen = false; sys_write_seen 115 samples/bpf/trace_event_user.c if (!sys_read_seen || !sys_write_seen) {