On 11/14/2017 04:16 AM, Anton Nefedov wrote: > Misaligned compressed write is not supported. > > Signed-off-by: Anton Nefedov <anton.nefe...@virtuozzo.com> > --- > block/qcow2.c | 4 ++++ > 1 file changed, 4 insertions(+)
Should this one be applied in 2.11?
Reviewed-by: Eric Blake <ebl...@redhat.com>
>
> diff --git a/block/qcow2.c b/block/qcow2.c
> index 92cb9f9..45c5651 100644
> --- a/block/qcow2.c
> +++ b/block/qcow2.c
> @@ -3349,6 +3349,10 @@ qcow2_co_pwritev_compressed(BlockDriverState *bs,
> uint64_t offset,
> return bdrv_truncate(bs->file, cluster_offset, PREALLOC_MODE_OFF,
> NULL);
> }
>
> + if (offset_into_cluster(s, offset)) {
> + return -EINVAL;
> + }
> +
> buf = qemu_blockalign(bs, s->cluster_size);
> if (bytes != s->cluster_size) {
> if (bytes > s->cluster_size ||
>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
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