From: Martin Schwidefsky <schwidefsky@de.ibm.com>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Chris Wright <chrisw@sous-sol.org>, Andi Kleen <ak@suse.de>,
linux-arch@vger.kernel.org,
Keir Fraser <Keir.Fraser@cl.cam.ac.uk>
Subject: Re: [patch] s390 kconfig cleanup.
Date: Wed, 17 May 2006 14:24:21 +0200 [thread overview]
Message-ID: <1147868661.5540.10.camel@localhost> (raw)
In-Reply-To: <Pine.LNX.4.62.0605171408240.30686@pademelon.sonytel.be>
On Wed, 2006-05-17 at 14:12 +0200, Geert Uytterhoeven wrote:
> > Hmm, so far s390 has lived quite happily without /dev/rtc. What is the
> > added benefit to have an emulation of a hardware interface that doesn't
> > exists for the architecture ?
>
> hwclock(8) can query the hardware clock?
>
> Originally hwclock used direct I/O accesses, which of course work on PC
> hardware only, but on `newer' systems it uses /dev/rtc.
What is hwclock? ;-)
That utility is not compiled / used on s390 distributions. We could add
genrtc, readd hwclock to the util-linux compile for s390 and just call
it in the init scripts. Some of the current scripts have something like
if [ `uname -s` == "Linux" -a `uname -m` != "s390" ]
then ...
around the calls to hwclock.
And it would be easy to do, just remove the !S390 from the GEN_RTC
option in my cleanup patch.
--
blue skies,
Martin.
Martin Schwidefsky
Linux for zSeries Development & Services
IBM Deutschland Entwicklung GmbH
"Reality continues to ruin my life." - Calvin.
next prev parent reply other threads:[~2006-05-17 12:24 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-15 17:16 [patch] s390 kconfig cleanup Martin Schwidefsky
2006-05-15 17:30 ` Andi Kleen
2006-05-15 19:00 ` Geert Uytterhoeven
2006-05-15 21:24 ` Chris Wright
2006-05-16 8:08 ` Martin Schwidefsky
2006-05-16 21:12 ` Chris Wright
2006-05-17 8:17 ` Martin Schwidefsky
2006-05-17 11:18 ` Geert Uytterhoeven
2006-05-17 11:22 ` Martin Schwidefsky
2006-05-17 11:24 ` Geert Uytterhoeven
2006-05-17 12:07 ` Martin Schwidefsky
2006-05-17 12:12 ` Geert Uytterhoeven
2006-05-17 12:24 ` Martin Schwidefsky [this message]
2006-05-17 13:25 ` Matthew Wilcox
2006-05-17 16:50 ` Martin Schwidefsky
2006-05-17 20:06 ` Geert Uytterhoeven
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