Re: [PATCH] 2.4-ac: sparc64 support for O(1) scheduler

From: Robert Love (
Date: Fri Jun 14 2002 - 12:32:32 EST

On Thu, 2002-06-13 at 21:25, David S. Miller wrote:

> Ummm what is with all of those switch_mm() hacks? Is this an attempt
> to work around the locking problems? Please don't do that as it is
> going to kill performance and having ifdef sparc64 sched.c changes is
> ugly to say the least.
> Ingo posted the correct fix to the locking problem with the patch
> he posted the other day, that is what should go into the -ac patches.

I am explicitly refraining from sending Alan any code that is not
well-tested in 2.5 and my machines first. As Ingo's new switch_mm()
bits are not even in 2.5 yet, I plan to wait a bit before sending
them... (I am currently putting together all the scheduler bits we have
been working on for a 2.4-ac patch...)

If you like, Alan can hold off on this and take it when the appropriate
patches are in.

        Robert Love

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