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domain: Only regenerate target if we really need to

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Certain different devices like scsi, usb, and sata use the same
target prefix. In those cases, just reuse it.
This commit is contained in:
Cole Robinson 2012-01-29 15:38:33 -05:00
parent 18f68bb581
commit a0dee00678
1 changed files with 6 additions and 2 deletions
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8
src/virtManager/domain.py
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@ -581,14 +581,18 @@ class vmmDomain(vmmLibvirtObject):
return self._redefine_device(change, devobj)
def define_disk_bus(self, devobj, newval):
def change(editdev):
diffbus = (editdev.bus != newval)
oldprefix = editdev.get_target_prefix()[0]
oldbus = editdev.bus
editdev.bus = newval
if not diffbus:
if oldbus == newval:
return
editdev.address.clear()
if oldprefix == editdev.get_target_prefix()[0]:
return
used = []
disks = (self.get_disk_devices() +
self.get_disk_devices(inactive=True))