[RFC] clocksouce implementation for powerpc

[Sergei Shtylyov]

Hello.

Thomas Gleixner wrote:

>>>>+void update_vsyscall(struct timespec *wall_time, struct clocksource *clock)
>>>>+{
>>>>+	timer_recalc_offset(tb_last_jiffy);
>>>>+	timer_check_rtc();
>>>>+}
>>
>>>Hmm .. This doesn't look like it's taking into account that the time has
>>>changed ..
>>
>>    Why? By the time it gets called (form the timer softirq context) 
> 
> 
> It is called from interrupt context at least in mainline. Only the -rt
> patch moves this to the softirq.

    Anyway, by the time it gets called, tb_last_jiffy gets updated.

> 	tglx

WBR, Sergei