Re: [PATCH] configure HAVE_UNSTABLE_SCHED_CLOCK for SGI_SN systems

From: Greg KH
Date: Thu Jan 22 2009 - 14:37:36 EST

On Thu, Jan 15, 2009 at 11:21:05AM -0800, Luck, Tony wrote:
> > > Greg, if everyone is OK with this patch, this should also be applied
> > > to all stable trees starting with 2.6.26.
> > What is the status of this going into Linus's tree?
> I'm about to ask Linus to pull a modified version that does
> a "select HAVE_UNSTABLE_SCHED_CLOCK" for all IA64 systems ...
> SGI sched_clock() is a lot less "stable" than most, but all
> ia64 systems can hit this as the ar.itc cycle counter is only
> s/w synchronized between cpus.

Thanks, I see it now and will queue it up for the next -stable releases.

greg k-h
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