On Fri, Nov 22, 2013 at 08:56:00AM +0200, Eliezer Tamir wrote: > On 21/11/2013 15:39, Peter Zijlstra wrote: > > On Thu, Nov 21, 2013 at 03:26:17PM +0200, Eliezer Tamir wrote: > > >> We don't override any limit the user has put on the system call. > > > > You are in fact, note how the normal select @endtime argument is only > > set up _after_ you're done polling. So if the syscall had a timeout of 5 > > seconds, you just blew it by 55. > > > > That's a bug, we will fix it.
The entire thing is a bug, and if I could take away sched_clock() from you I would, but sadly its all inlines so I can't :-( Please use local_clock(), yes its slightly more expensive, but I doubt you can actually measure the effects on sane hardware. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
