[blivet 07/13] Check that a BTRFS subvolume has exactly one parent in constructor.
mulhern
amulhern at redhat.com
Fri Dec 6 16:50:07 UTC 2013
Signed-off-by: mulhern <amulhern at redhat.com>
---
blivet/devices.py | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/blivet/devices.py b/blivet/devices.py
index 8a1c4a6..b22cb38 100644
--- a/blivet/devices.py
+++ b/blivet/devices.py
@@ -4549,8 +4549,15 @@ class BTRFSSubVolumeDevice(BTRFSDevice):
def __init__(self, *args, **kwargs):
self.vol_id = kwargs.pop("vol_id", None)
+
super(BTRFSSubVolumeDevice, self).__init__(*args, **kwargs)
+ if len(self.parents) != 1:
+ raise DeviceError("%s %s must have exactly one parent." % (self.type, self.name))
+
+ if not isinstance(self.parents[0], BTRFSDevice):
+ raise DeviceError("%s %s's unique parent must be a BTRFSDevice." % (self.type, self.name))
+
self.volume._addSubVolume(self)
@property
--
1.8.3.1
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