On 28.06.20 13:02, Alberto Garcia wrote: > The QCOW_OFLAG_ZERO bit that indicates that a cluster reads as > zeroes is only used in standard L2 entries. Extended L2 entries use > individual 'all zeroes' bits for each subcluster. > > This must be taken into account when updating the L2 entry and also > when deciding that an existing entry does not need to be updated. > > Signed-off-by: Alberto Garcia <be...@igalia.com> > Reviewed-by: Eric Blake <ebl...@redhat.com> > --- > block/qcow2-cluster.c | 36 +++++++++++++++++++----------------- > 1 file changed, 19 insertions(+), 17 deletions(-)
Reviewed-by: Max Reitz <mre...@redhat.com>
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