On Thu, Jan 31, 2008 at 09:04:39PM -0800, Christoph Lameter wrote:
- Has page tables to track pages whose refcount was elevated(?) but
no reverse maps.
Just a correction, rmaps exists or swap couldn't be sane, it's just
that it's not built on the page_t because the guest memory is really
This is a patchset implementing MMU notifier callbacks based on Andrea's
earlier work. These are needed if Linux pages are referenced from something
else than tracked by the rmaps of the kernel (an external MMU).
The known immediate users are
KVM
- Establishes a refcount to the page via
