Re: __get_free_pages

From: Rik van Riel (riel@conectiva.com.br)
Date: Tue Sep 03 2002 - 21:38:26 EST

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On 3 Sep 2002, Robert Love wrote:
> On Tue, 2002-09-03 at 22:19, Imran Badr wrote:
>
> > Does __get_free_pages(..) return physically contiguous pages?
>
> Yes.

But only if they're available. Linux doesn't currently have
any mechanisms for smart defragmentation of physical memory
and even if we had them they couldn't be fully reliable.

So be careful what you ask for, if you ask for too large a
chunk of memory you might end up not getting any at all.

regards,

Rik

-- Bravely reimplemented by the knights who say "NIH".

http://www.surriel.com/ http://distro.conectiva.com/

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