On Mon 20 Apr 2020 03:32:09 PM CEST, Kevin Wolf wrote: > If BDRV_REQ_ZERO_WRITE is set and we're extending the image, calling > qcow2_cluster_zeroize() with flags=0 does the right thing: It doesn't > undo any previous preallocation, but just adds the zero flag to all > relevant L2 entries. If an external data file is in use, a write_zeroes > request to the data file is made instead. > > Signed-off-by: Kevin Wolf <kw...@redhat.com>
Reviewed-by: Alberto Garcia <be...@igalia.com> Berto
