1#include <uapi/linux/ptrace.h>
 2#include <uapi/linux/bpf.h>
 3#include <linux/version.h>
 4#include <bpf/bpf_helpers.h>
 5
 6SEC("kprobe/open_ctree")
 7int bpf_prog1(struct pt_regs *ctx)
 8{
 9	unsigned long rc = -12;
10
11	bpf_override_return(ctx, rc);
12	return 0;
13}
14
15char _license[] SEC("license") = "GPL";
16u32 _version SEC("version") = LINUX_VERSION_CODE;