[parisc-linux] Fwd: Problems with raw interface.

David S. Miller davem@redhat.com
Fri, 26 Sep 2003 07:04:50 -0700


On Fri, 26 Sep 2003 15:09:48 +0100
Matthew Wilcox <willy@debian.org> wrote:

> > You have to find a way to walk all the address spaces to figure out
> > where the page is mapped.
> 
> That's ridiculous.  For a start, pages can't be mapped into multiple
> address spaces without being in the page cache.

How in the world can anonymous pages work then?  Of course anonymous
pages can be in multiple address spaces without being in the page
cache.