[PATCH v2 3/4] Implement clockevents driver for powerpc

Sergei Shtylyov sshtylyov at ru.mvista.com
Wed Oct 24 22:07:41 EST 2007

Hello, I wrote:

>>>   The only thing I'm still unusre about is that deterministic accounting. 
>>>Could you point me at the patch which deals with this (at least for System 390 

>>See efe567fc8281661524ffa75477a7c4ca9b466c63 in Linus' tree, and look

>     Wait, how this is related to the hrtimer's event handlers not being able 
> to call account_process_time() from arch/powerpc/kernel/time.c instead of 
> update_process_timess()?

    I've just realized that I've missed the call to account_process_time() in 
the new timer_interrupt(). :-<
    Anyway, this leads to each tick being accounted twice if the deterministic 
accounting is not enabled -- first by timer_interrupt() and then by the 
hrtimers core, doesn't it?

WBR, Sergei

More information about the Linuxppc-dev mailing list