Re: [PATCH 4/4] Swap migration V3: sys_migrate_pages interface

[Christoph Lameter]

On Fri, 21 Oct 2005, Paul Jackson wrote:

> Kame wroteL
> > I'm just afraid of swapped-out pages will goes back to original nodes
> 
> The pages could end up there, yes, if that's where they are faulted
> back into.

Right. But the cpuset code will change the mems_allowed. The pages will 
then be allocated in that context.

> In general, the swap-based migration method does not guarantee
> where the pages will end up.  The more difficult direct node-to-node
> migration method will be needed to guarantee that.

Correct, tt does not guarantee that without cpuset assistance. 
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