NTP time sync

[Benjamin Herrenschmidt]

On Thu, 2006-11-23 at 11:54 +0100, Andi Kleen wrote:
> > [1] http://lkml.org/lkml/2006/3/28/358
> 
> What was the answer to Matt's last question in there?
> If the existing user land does it already then 
> probably.  If not then a good migration strategy would 
> be needed.

Couldn't we have a transition period by making the kernel not rely on
interrupts ? if the NTP irq code just triggers a work queue, then all of
a sudden, all of the RTC drivers can be used and the latency is small.
That might well be a good enough solution and is very simple.

Ben