tree b1e1b59079dad95151e0300bc4c5966e997b724c
parent ff8adbcfdbbd9c0f2b01ff8a32bc75082fdd9844
author Tomoki Sekiyama <tomoki.sekiyama@hds.com> 1389633939 -0500
committer Michael Roth <mdroth@linux.vnet.ibm.com> 1393182712 -0600

qga: vss-win32: Fix interference with snapshot deletion by other VSS request

When a VSS requester such as vshadow.exe or diskshadow.exe requests to
delete snapshots, qemu-ga VSS provider's DeleteSnapshots() is also called
and returns E_NOTIMPL, that makes the deletion fail.
To avoid this issue, return S_OK and set values that represent no snapshots
are deleted by qemu-ga VSS provider.

Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
Reviewed-by: Gal Hammer <ghammer@redhat.com>
Reviewed-by: Yan Vugenfirer <yvugenfi@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>