8a52f3a59cda5c7db0b9c2a99ebb156
author Daniel De Graaf <dgdegra@tycho.nsa.gov> 1297174446 -0500
committer Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> 1297710979 -0500

xen-gntdev: Fix unmap notify on PV domains

In paravirtualized guests, the struct page* for mappings is only a
placeholder, and cannot be used to access the granted memory. Use the
userspace mapping that we have set up in order to implement
UNMAP_NOTIFY_CLEAR_BYTE.

Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
ΠΙ™