On Thu, May 22, 2014 at 06:41:57AM +0900, Thomas Gleixner wrote:
> 
> Shouldn't this depend on CONFIG_PROCFS?
> 
> >  static const struct file_operations timerfd_fops = {
> >  	.release	= timerfd_release,
> >  	.poll		= timerfd_poll,
> >  	.read		= timerfd_read,
> >  	.llseek		= noop_llseek,
> > +	.show_fdinfo	= timerfd_show,
> >  };
> >  
> >  static int timerfd_fget(int fd, struct fd *p)

yeah, good point, thanks! Updated.