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From: john stultz <johnstul@us.ibm.com>
To: Lee Revell <rlrevell@joe-job.com>
Cc: Andrew Morton <akpm@osdl.org>, lkml <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH -mm] Time: Keep clock=pmtmr functional, but depricated
Date: Mon, 23 Jan 2006 19:02:36 -0800	[thread overview]
Message-ID: <1138071756.15682.85.camel@cog.beaverton.ibm.com> (raw)
In-Reply-To: <1138071554.2771.45.camel@mindpipe>

On Mon, 2006-01-23 at 21:59 -0500, Lee Revell wrote:
> On Mon, 2006-01-23 at 18:52 -0800, john stultz wrote:
> > With the new clocksource code, the ACPI PM timer is now called acpi_pm.
> > This has confused users that are familiar w/ using the clock=pmtmr boot
> > option.
> > 
> > This patch insures that the clock=pmtmr boot option will still function,
> > but will warn the users to use clocksource=acpi_pm in the future.
> 
> What about the other clock= boot options?

They are using the same old names: "cyclone", "hpet", "pit", "tsc"
So nothing changes there, clock= will still function (but prints out a
warning).

> I believe that changing their behavior counts as "breaking userspace".

I'm not sure I'd consider changing a kernel boot parameter as "breaking
userspace", but I do agree that we should preserve behavior for awhile
to avoid confusion, and that is what this patch provides.

thanks
-john




      reply	other threads:[~2006-01-24  3:02 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-01-24  2:52 john stultz
2006-01-24  2:59 ` Lee Revell
2006-01-24  3:02   ` john stultz [this message]

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