On Mon, Sep 29, 2008 at 9:48 AM, Peter Teoh <htmldeveloper@xxxxxxxxx> wrote:
> I would like to know the maximum memory I can allocate (using
> alloc_page()) in GFP_KERNEL and __GFP_HIGHMEM memory area - how can I
> know that?
Peter, I doubt you can precisely know that at any given time. :)
A lot of issues come into picture, the order of pages you want to
allocate, fragmentation, pages used as anonymous pages , pages for
other dynamic allocation which is required by kernel etc.
All these make it really difficult for precise answer.
Approximation I think you do it using some simple maths.
HTH,
Thanks,
--Pradeep
>
> Thanks.
>
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> Regards,
> Peter Teoh
>
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