On Wed, Dec 13, 2006 at 03:37:57PM +1100, Benjamin Herrenschmidt wrote:
> Hi folks !
>
> What is the logic regarding VM_RESERVED, and more specifically, why is
> vm_normal_page() nor returning NULL for these ?
Near as I could ever tell from the discussion on linux-mm, it is a page
which should not be dumped. If you have a normal page in a mapping
which you don't want swapped out, the only way I could ever figure to
prevent that from happening is by doing an extra get_user_page() on it
to add a reference.
Thanks,
Robin
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