Re: Linux time code

From: Roman Zippel
Date: Thu Aug 17 2006 - 07:40:36 EST


On Wed, 16 Aug 2006, john stultz wrote:

> > For example there is a POSIX-like sys_clock_gettime() intended to
> > server the end-user directly, but there's no counterpart do_clock_gettime() to
> > server any in-kernel needs.
> Hmmm.. ktime_get(), ktime_get_ts() and ktime_get_real(), provide this
> info. Is there something missing here?

What is missing is the abiltity to map a clock to a posix clock, so that
you would have CLOCK_REALTIME/CLOCK_MONOTONIC as NTP controlled clocks and
other CLOCK_* as the raw clock.
At some point I tried to discuss such possibilities, but it probably
wasn't relevant for the rt kernel, so it was utterly ignored. :(

bye, Roman
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