commit 16a1d0225e22e4e273e6b60a21db95decde666c2
author Daniel De Graaf <dgdegra@tycho.nsa.gov> Wed Jan 02 22:57:12 2013 +0000
committer Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Tue Jan 15 16:01:30 2013 -0500
tree 4a640870d7121933f8a94d0fbe7e5fe7014e1bf2
parent 2512f298cb9886e06938e761c9e924c8448d9ab8

xen/gntdev: correctly unmap unlinked maps in mmu notifier

If gntdev_ioctl_unmap_grant_ref is called on a range before unmapping
it, the entry is removed from priv->maps and the later call to
mn_invl_range_start won't find it to do the unmapping. Fix this by
creating another list of freeable maps that the mmu notifier can search
and use to unmap grants.

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