Re: [PATCH] sched: Support current clocksource handling in fallback sched_clock().

Daniel Walker
2009-05-28T16:13:47Z

On Thu, 2009-05-28 at 14:59 +0200, Peter Zijlstra wrote:

>
>
> CPU0 CPU1
>
> clock = ACCESS_ONCE(sched_clocksource);
>
> unload module
> clocksource_unregister()
> sched_clocksource = jiffies
> unmap data/text
>
> cyc2ns(clock, clocksource_read(clock)) <--- fireworks
>
>

Do any module based clocksources even exist right now?
clocksource_unregister only seems to be used 3 times..

Daniel