Re: [PATCH] mm,migration: Avoid race between shift_arg_pages() andrmap_walk() during migration by not migrating temporary stacks

[Linus Torvalds]

On Tue, 11 May 2010, Mel Gorman wrote:
> 
> This patch closes the most important race in relation to exec and
> migration. With it applied, the swapops bug is no longer triggering for
> known problem workloads. If you pick it up, it should go with the other
> mmmigration-* fixes in mm.

Ack. _Much_ better and clearer.

I'm not entirely sure we need that "maybe_stack" (if we need it, that 
would sound like a problem anyway), but I guess it can't hurt either.

		Linus
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