On Fri 31 Jan 2020 06:44:25 PM CET, Eric Blake wrote: > When we added bdrv_has_zero_init_truncate(), we chose to blindly > return 0 if a backing file was present, because we knew of the corner > case where a backing layer larger than the current layer might leak > the tail of the backing layer into the resized region. But as this > setup is rare, it penalizes the more common case of a backing layer > smaller than the current layer. > > Signed-off-by: Eric Blake <ebl...@redhat.com>
Reviewed-by: Alberto Garcia <be...@igalia.com> Berto
