Re: [PATCH v2 4/5] signal: support CLONE_PIDFD with pidfd_send_signal

[Oleg Nesterov]

On 04/18, Christian Brauner wrote:
>
> +static struct pid *pidfd_to_pid(const struct file *file)
> +{
> +	if (file->f_op == &pidfd_fops)
> +		return file->private_data;
> +
> +	return tgid_pidfd_to_pid(file);
> +}

the patch looks obviously fine to me, but I have an absolutely off-topic
question... why tgid_pidfd_to_pid() has to check d_is_dir() ?

Oleg.