[master 3/5] Snapshot format exists upon snapshot creation.

[dashea]

From: David Lehman

Related: rhbz#1113207
---
 blivet/devices/lvm.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/blivet/devices/lvm.py b/blivet/devices/lvm.py
index c524a11..6ad9408 100644
--- a/blivet/devices/lvm.py
+++ b/blivet/devices/lvm.py
@@ -1271,6 +1271,11 @@ def _create(self):
         blockdev.lvm.thsnapshotcreate(self.vg.name, self._name, self.origin.lvname,
                                       pool_name=pool_name)

+    def _postCreate(self):
+        super(LVMThinSnapShotDevice, self)._postCreate()
+        # A snapshot's format exists as soon as the snapshot has been created.
+        self.format.exists = True
+
     def dependsOn(self, dep):
         # once a thin snapshot exists it no longer depends on its origin
         return ((self.origin == dep and not self.exists) or