C++ (Cpp) marker_probe_register Beispiele

Beispiel #1

static int __init probe_init(void)
{
	int result;
	int i;

	for (i = 0; i < ARRAY_SIZE(probe_array); i++) {
		result = marker_probe_register(probe_array[i].name,
				probe_array[i].format,
				probe_array[i].probe_func, &probe_array[i]);
		if (result)
			printk(KERN_INFO "Unable to register probe %s\n",
				probe_array[i].name);
	}
	return 0;
}

Beispiel #2

Datei: kvm_trace.c Projekt: masbog/iphonelinux-kernel

static int do_kvm_trace_enable(struct kvm_user_trace_setup *kuts)
{
	struct kvm_trace *kt;
	int i, r = -ENOMEM;

	if (!kuts->buf_size || !kuts->buf_nr)
		return -EINVAL;

	kt = kzalloc(sizeof(*kt), GFP_KERNEL);
	if (!kt)
		goto err;

	r = -EIO;
	atomic_set(&kt->lost_records, 0);
	kt->lost_file = debugfs_create_file("lost_records", 0444, kvm_debugfs_dir,
					    kt, &kvm_trace_lost_ops);
	if (!kt->lost_file)
		goto err;

	kt->rchan = relay_open("trace", kvm_debugfs_dir, kuts->buf_size,
				kuts->buf_nr, &kvm_relay_callbacks, kt);
	if (!kt->rchan)
		goto err;

	kvm_trace = kt;

	for (i = 0; i < ARRAY_SIZE(kvm_trace_probes); i++) {
		struct kvm_trace_probe *p = &kvm_trace_probes[i];

		r = marker_probe_register(p->name, p->format, p->probe_func, p);
		if (r)
			printk(KERN_INFO "Unable to register probe %s\n",
			       p->name);
	}

	kvm_trace->trace_state = KVM_TRACE_STATE_RUNNING;

	return 0;
err:
	if (kt) {
		if (kt->lost_file)
			debugfs_remove(kt->lost_file);
		if (kt->rchan)
			relay_close(kt->rchan);
		kfree(kt);
	}
	return r;
}