Re: [PATCH] RTC: Add mmap method to rtc character driver

From: Neil Horman
Date: Tue Jul 25 2006 - 19:58:30 EST

On Wed, Jul 26, 2006 at 01:29:25AM +0200, Segher Boessenkool wrote:
> >Yes, but if its in trade for something thats being used currently
> >which hurts
> >more (case in point being the X server), using this solution is a
> >net gain.
> the short term.
And for any arch that isn't able to leverage a speedup via a vdso implementation
of a simmilar functionality in the long term

> >I'm not arguing with you that adding a low res gettimeofday
> >vsyscall is a better
> >long term solution, but doing that requires potentially several
> >implementations
> >in the C library accross a range of architectures, some of which
> >may not be able
> >to provide a time solution any better than what the gettimeofday
> >syscall
> >provides today. The /dev/rtc solution is easy, available right
> >now, and applies
> >to all arches.
> "All"?
It there any arch for which the rtc driver doesn't function?

> Segher
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