[Kimchi-devel] [PATCH 1/5] Bug fix: Use VIR_STORAGE_VOL_RESIZE_SHRINK flag when decreasing the volume size

To decrease the volume size the flag VIR_STORAGE_VOL_RESIZE_SHRINK must be used. But even using this flag, libvirt is not able to resize the volume due a bug: https://bugzilla.redhat.com/show_bug.cgi?id=1021802 Signed-off-by: Aline Manera <alinefm(a)linux.vnet.ibm.com&gt; --- src/kimchi/model/storagevolumes.py | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/src/kimchi/model/storagevolumes.py b/src/kimchi/model/storagevolumes.py index cb79966..6fbb8b4 100644 --- a/src/kimchi/model/storagevolumes.py +++ b/src/kimchi/model/storagevolumes.py @@ -366,8 +366,19 @@ class StorageVolumeModel(object): def resize(self, pool, name, size): volume = StorageVolumeModel.get_storagevolume(pool, name, self.conn) + + # When decreasing the storage volume capacity, the flag + # VIR_STORAGE_VOL_RESIZE_SHRINK must be used + flags = 0 + if volume.info()[1] > size: + # FIXME: Even using VIR_STORAGE_VOL_RESIZE_SHRINK flag it is not + # possible to decrease the volume capacity due a libvirt bug + # For reference: + # - https://bugzilla.redhat.com/show_bug.cgi?id=1021802 + flags = libvirt.VIR_STORAGE_VOL_RESIZE_SHRINK + try: - volume.resize(size, 0) + volume.resize(size, flags) except libvirt.libvirtError as e: raise OperationFailed("KCHVOL0011E", {'name': name, 'err': e.get_error_message()}) -- 2.1.0