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Re: Adding new zone in Linux MM



On Tue, 8 Jan 2002, Ravi K wrote:
> --- Rik van Riel <riel@conectiva.com.br> wrote:
> > The big problem is teaching kswapd to not try and
> > free pages in this zone, since it will never succeed
> > if you have all pages used and you don't want kswapd
> > to loop ;)
>
>  Can it be handled by one additional check in
> __alloc_pages()? If need_balance is never set for the
> new zone, kswapd shouldn't touch it.
>  Of course, users of the new zone should be coded to
> handle null return values. Apart from this, is there
> anything else to worry about?

That should work, indeed.

Rik
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