[PATCH 14/17] Special treatment for getting parted device for old-style lvm snapshots.
David Lehman
dlehman at redhat.com
Thu Jun 5 16:47:34 UTC 2014
The device at the obvious path shows the same size as the origin, which
is not necessarily the size of the snapshot. This special device with
"-cow" appended to it seems to show the correct size.
---
blivet/devices.py | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/blivet/devices.py b/blivet/devices.py
index 4df633d..8eec9a6 100644
--- a/blivet/devices.py
+++ b/blivet/devices.py
@@ -657,17 +657,21 @@ class StorageDevice(Device):
return crypted
+ def _getPartedDevicePath(self):
+ return self.path
+
@property
def partedDevice(self):
+ devicePath = self._getPartedDevicePath()
if self.exists and self.status and not self._partedDevice:
- log.debug("looking up parted Device: %s", self.path)
+ log.debug("looking up parted Device: %s", devicePath)
# We aren't guaranteed to be able to get a device. In
# particular, built-in USB flash readers show up as devices but
# do not always have any media present, so parted won't be able
# to find a device.
try:
- self._partedDevice = parted.Device(path=self.path)
+ self._partedDevice = parted.Device(path=devicePath)
except (_ped.IOException, _ped.DeviceException):
pass
@@ -3240,6 +3244,9 @@ class LVMSnapShotDevice(LVMSnapShotBase, LVMLogicalVolumeDevice):
# that it is okay to remove the active snapshot
lvm.lvremove(self.vg.name, self._name, force=True)
+ def _getPartedDevicePath(self):
+ return "%s-cow" % self.path
+
def dependsOn(self, dep):
# pylint: disable=bad-super-call
return (self.origin == dep or
--
1.9.0
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