Re: [PATCH] [RFC] notify userspace about time changes

From: john stultz
Date: Thu Aug 05 2010 - 18:30:22 EST


On Fri, 2010-08-06 at 00:17 +0200, Kay Sievers wrote:
> On Thu, Aug 5, 2010 at 23:11, john stultz <johnstul@xxxxxxxxxx> wrote:
> > On Thu, 2010-08-05 at 15:33 +0300, Alexander Shishkin wrote:
> >> On 4 August 2010 18:58, john stultz <johnstul@xxxxxxxxxx> wrote:
> >> > Is there a actual use case that you need this for? I don't really have
> >> > an issue with the code I just really want to make sure the feature would
> >> > be useful enough to justify the API and code maintenance going forward.
>
> Basically everything that schedules an action based on an absolute
> time specification, like at 3pm today, and not in 3 hours from now,
> needs to track such system time changes. Otherwise it has to do
> nonsense like cron does, to wake up every minute to check the current
> time.

time_create(CLOCK_REALTIME,...) creates absolute (not relative) timers
that should be adjusted when the clock is changed. Is that not the case?

-john

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/