Re: [PATCH] 2.4-ac: migration_init improvements

From: William Lee Irwin III (
Date: Tue May 07 2002 - 13:07:25 EST

On Tue, May 07, 2002 at 10:53:57AM -0700, Robert Love wrote:
> The attached patch simplifies the migration_init code (an ugly lot) with
> a simpler mechanism. This is Erich Focht's version which is now in
> 2.5. It has proved stable both there and in my testing.
> The new method is to bring up the first migration_thread, and then use
> it to migrate the remaining threads to their respective CPUs. The
> method makes sense and removes a lot of code.
> This patch also includes a boot hang fix demonstrated on arches where
> logical CPU mapping != physical CPU mapping. The bug was reported and
> fixed by James Bottomley in 2.5.
> Patch is against 2.4.19-pre7-ac4, please apply.
> Robert Love

No objections here. Focht's code works just as well or better, and has
further advantages with respect to hotplug cpu support.

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