Re: [PATCH] i386 tsc: remove xtime_lock'ing around cpufreq notifier

[Jeremy Fitzhardinge]

Andi Kleen wrote:
> Ok. I think it's better to just fix sched_clock() again than to
> add another one.  I can probably
> eliminate the ktime_get() and use something based on jiffies. That will
> be inaccurate for the instable case of course.
>
> I will do that later today.

sched_clock seems a bit weird to use.  In the pv_ops world, it only
counts unstolen time, and it is therefore inherently per-cpu.  The
timestamps should be at least system-wide monotonic.

    J
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