Re: [PATCH 2/7] timekeeping: Provide new API to get the current time resolution

Harald Geyer
2015-05-20T18:56:00Z

John Stultz writes:
> > I was thinking that the variable hrtimer_resolution, that Thomas
> > introduced in
> > https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit/include/linux/hrtimer.h?h=timers/wip&id=03eeacdb07e2fdfc4ef311c2593286c92eba609c
> > is meant to provide the same information. I haven't looked into this
> > in detail yet, so I might be wrong, but it is on my todo list for
> > after it appears in the trees I work with...
>
> Well, I don't think the above covers the same usage, since one is the
> hrtimer resolution (which we expose to userspace via the posix timers
> interface) vs the timekeeping/clocksource resolution (which we don't
> intend to expose to userspace).

Ok, hrtimer resolution is not updated when we change clocksource.
Seems like I misinterpreted something when I read the series.

> That said, if you're not sure if this patch is still necessary, I'm
> happy to drop it, since your iio code was the only potential user so
> far. :)

Looks like my patch is still needed... :(

Thanks,
Harald