def rebase(self, backingVol, backingVolPath, backingFormat, unsafe,
rollback):
"""
Rebase volume on top of new backing volume
"""
if rollback:
pvol = self.getParentVolume()
if not pvol:
self.log.warn("Can't rebase volume %s, parent missing",
self.volUUID)
return
name = "Merge volume: " + self.volUUID
vars.task.pushRecovery(
task.Recovery(name, "volume", "Volume", "rebaseVolumeRollback",
[
self.sdUUID,
self.getImage(), self.volUUID,
str(pvol.getFormat()), pvol.volUUID,
str(True)
]))
volumePath = self.getVolumePath()
try:
qemuimg.rebase(volumePath,
backingVolPath, fmt2str(self.getFormat()),
fmt2str(backingFormat), unsafe, vars.task.aborting)
except qemuimg.QImgError:
self.log.exception('cannot rebase volume %s on %s', volumePath,
backingVolPath)
raise se.MergeSnapshotsError(self.volUUID)
self.setParent(backingVol)
self.recheckIfLeaf()
def rebase(self, backingVol, backingVolPath,
backingFormat, unsafe, rollback):
"""
Rebase volume on top of new backing volume
"""
if rollback:
pvol = self.getParentVolume()
if not pvol:
self.log.warn("Can't rebase volume %s, parent missing",
self.volUUID)
return
name = "Merge volume: " + self.volUUID
vars.task.pushRecovery(
task.Recovery(name, "volume", "Volume",
"rebaseVolumeRollback",
[self.sdUUID, self.getImage(),
self.volUUID, str(pvol.getFormat()),
pvol.volUUID, str(True)]))
(rc, out, err) = qemuRebase(self.getVolumePath(), self.getFormat(),
backingVolPath, backingFormat, unsafe,
vars.task.aborting, rollback)
if rc:
raise se.MergeSnapshotsError(self.volUUID)
self.setParent(backingVol)
self.recheckIfLeaf()