On 11/14/2014 06:06 AM, Max Reitz wrote: > No longer refuse to open images with a different refcount entry width > than 16 bits; only reject images with a refcount width larger than 64 > bits (which is prohibited by the specification). > > Signed-off-by: Max Reitz <mre...@redhat.com> > --- > block/qcow2.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/block/qcow2.c b/block/qcow2.c
> index d70e927..528d696 100644
> --- a/block/qcow2.c
> +++ b/block/qcow2.c
> @@ -677,10 +677,10 @@ static int qcow2_open(BlockDriverState *bs, QDict
> *options, int flags,
> }
>
> /* Check support for various header values */
> - if (header.refcount_order != 4) {
> - report_unsupported(bs, errp, "%d bit reference counts",
> - 1 << header.refcount_order);
> - ret = -ENOTSUP;
> + if (header.refcount_order > 6) {
> + error_setg(errp, "Reference count entry width too large; may not "
> + "exceed 64 bit");
s/bit/bits/
Maintainer can make that tweak, so:
Reviewed-by: Eric Blake <ebl...@redhat.com>
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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