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authorTomoki Sekiyama <tomoki.sekiyama@hds.com>2014-01-13 12:25:39 -0500
committerMichael Roth <mdroth@linux.vnet.ibm.com>2014-02-23 13:11:52 -0600
commitd9e1f574cb6eac0a3a2f97b67d2e7a3ad9c1dc95 (patch)
treeb1e1b59079dad95151e0300bc4c5966e997b724c
parentff8adbcfdbbd9c0f2b01ff8a32bc75082fdd9844 (diff)
downloadfocaccia-qemu-d9e1f574cb6eac0a3a2f97b67d2e7a3ad9c1dc95.tar.gz
focaccia-qemu-d9e1f574cb6eac0a3a2f97b67d2e7a3ad9c1dc95.zip
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>
-rw-r--r--qga/vss-win32/provider.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/qga/vss-win32/provider.cpp b/qga/vss-win32/provider.cpp
index b2336465ac..d5129f8f65 100644
--- a/qga/vss-win32/provider.cpp
+++ b/qga/vss-win32/provider.cpp
@@ -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(