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>
This commit is contained in:
Tomoki Sekiyama 2014-01-13 12:25:39 -05:00 committed by Michael Roth
parent ff8adbcfdb
commit d9e1f574cb

View File

@ -278,7 +278,9 @@ STDMETHODIMP CQGAVssProvider::DeleteSnapshots(
VSS_ID SourceObjectId, VSS_OBJECT_TYPE eSourceObjectType,
BOOL bForceDelete, LONG *plDeletedSnapshots, VSS_ID *pNondeletedSnapshotID)
{
return E_NOTIMPL;
*plDeletedSnapshots = 0;
*pNondeletedSnapshotID = SourceObjectId;
return S_OK;
}
STDMETHODIMP CQGAVssProvider::BeginPrepareSnapshot(