Re: time interpolation hooks

[Andrew Morton <akpm@digeo.com>]

David Mosberger <davidm@napali.hpl.hp.com> wrote:
>
> Andrew, I assume it's OK with you if I update the ia64 code to the
>  proposed interface and then send you an updated patch?

Sure.  It's be good to see an ia32 implementation which can be beaten on. 
Maybe John can look into that?

>From an implementation point of view, I wonder if all platforms will need
the indirection?

If not then it would be better to just do

	update_wall_time_hook(sys_tz.tz_minuteswest * 60 * NSEC_PER_SEC);

in kernel/time.c and let the architecture decide whether it wants to add
the extra overwriteable hooks.

So include/asm/time-interpolation.h has:

	#include <asm-generic/time-interpolation.h>

and asm-generic/time-interpolation.h has:

	struct time_interpolator {
		...
	}

	static inline void update_wall_time_hook(unsigne long nsec)
	{
		time_interpolator.update_wall_time(nsec);
	}

if you get my drift.