Subject: Re: map user memory in kernel
To: Wolfgang Solfrank <firstname.lastname@example.org>
From: Emmanuel Dreyfus <email@example.com>
Date: 11/05/2005 15:32:00
On Sat, Nov 05, 2005 at 12:22:45PM +0100, Wolfgang Solfrank wrote:
> So no need to actually map the page into memory. Just make a more or
> less unique address out of the address given (like e.g. use the physical
> address on machines where physical and virtual address sizes match) and be
> done with it.
But what if the page where the address is gets paged out? I can't
rely on a physical address in that situation.