Re: get_user_pages() still broken in 2.6

Christoph Hellwig
2004-09-29T15:01:34Z

On Wed, Sep 29, 2004 at 09:48:09AM -0500, Timur Tabi wrote:
> Christoph Hellwig wrote:
>
> > get_user_pages locks the page in memory. It doesn't do anything about ptes.
>
> I don't understand the difference. I thought a locked page is one that
> stays in memory (i.e. isn't swapped out) and whose physical address
> never changes. Is that wrong?

Yes. But if you're walking ptes you're looking at virtual addresses
somehow. Can you send me a pointer to your code please? I suspect
it's doing something terribly stupid.