1 // SPDX-License-Identifier: GPL-2.0 2 #include <linux/bpf.h> 3 #include <bpf/bpf_tracing.h> 4 5 char LICENSE[] SEC("license") = "GPL"; 6 7 struct trace_event_raw_timerlat_sample { 8 unsigned long long timer_latency; 9 } __attribute__((preserve_access_index)); 10 11 SEC("tp/timerlat_action") 12 int action_handler(struct trace_event_raw_timerlat_sample *tp_args) 13 { 14 bpf_printk("Latency: %lld\n", tp_args->timer_latency); 15 return 0; 16 } 17