Chen Hanxiao <chenhanx...@cn.fujitsu.com> writes: > libvirt commit 466b29c8c3593b2dac92acad5dd8ec923c428259 > introduce btrfsCloneFile() for COW copy. > This patch add support for --reflink option for virt-clone. > When specified --reflink, if src and dst images all on a btrfs > fs, we could take advantage of COW copy. > If not, error out. > > Signed-off-by: Chen Hanxiao <chenhanx...@cn.fujitsu.com> > --- > virt-clone | 4 +++- > virtinst/cloner.py | 5 +++-- > virtinst/devicedisk.py | 4 ++-- > virtinst/diskbackend.py | 14 ++++++++------ > virtinst/storage.py | 5 ++++- > 5 files changed, 20 insertions(+), 12 deletions(-) > > diff --git a/virtinst/storage.py b/virtinst/storage.py > index bdbd064..fe7f9cb 100644 > --- a/virtinst/storage.py > +++ b/virtinst/storage.py > @@ -723,7 +723,7 @@ class StorageVolume(_StorageObject): > "setting allocation equal to capacity")) > self.allocation = self.capacity > > - def install(self, meter=None): > + def install(self, meter=None, reflink=None): > """ > Build and install storage volume from xml > """ > @@ -748,6 +748,9 @@ class StorageVolume(_StorageObject): > self.conn.SUPPORT_POOL_METADATA_PREALLOC, self.pool)): > createflags |= libvirt.VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA > > + if reflink: > + cloneflags |= libvirt.VIR_STORAGE_VOL_CREATE_REFLINK > +
you should check that the VIR_STORAGE_VOL_CREATE_REFLINK flag is defined before using it. You can do this in support.py. Thanks, Giuseppe _______________________________________________ virt-tools-list mailing list virt-tools-list@redhat.com https://www.redhat.com/mailman/listinfo/virt-tools-list
