Re: [PATCH v2 1/3] block: add BDRV_BLOCK_COMPRESSED flag for bdrv_block_status()

[Hanna Czenczek]

On 06.07.23 18:30, Andrey Drobyshev wrote:
> Functions qcow2_get_host_offset(), get_cluster_offset(),
> vmdk_co_block_status() explicitly report compressed cluster types when data
> is compressed.  However, this information is never passed further.  Let's
> make use of it by adding new BDRV_BLOCK_COMPRESSED flag for
> bdrv_block_status(), so that caller may know that the data range is
> compressed.  In particular, we're going to use this flag to tweak
> "qemu-img map" output.
>
> This new flag is only being utilized by qcow, qcow2 and vmdk formats, as only
> those support compression.
>
> Signed-off-by: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com>
> ---
>   block/qcow.c                 | 5 ++++-
>   block/qcow2.c                | 3 +++
>   block/vmdk.c                 | 2 ++
>   include/block/block-common.h | 3 +++
>   4 files changed, 12 insertions(+), 1 deletion(-)

Reviewed-by: Hanna Czenczek <hreitz@redhat.com>