On 05/14/2016 06:45 AM, Denis V. Lunev wrote:
> From: Pavel Butsykin <pbutsy...@virtuozzo.com>
> 
> There are no block drivers left that implement the old
> .bdrv_write_compressed interface, so it can be removed now.
> 
> Signed-off-by: Pavel Butsykin <pbutsy...@virtuozzo.com>
> Signed-off-by: Denis V. Lunev <d...@openvz.org>
> CC: Jeff Cody <jc...@redhat.com>
> CC: Markus Armbruster <arm...@redhat.com>
> CC: Eric Blake <ebl...@redhat.com>
> CC: John Snow <js...@redhat.com>
> CC: Stefan Hajnoczi <stefa...@redhat.com>
> CC: Kevin Wolf <kw...@redhat.com>
> ---

> +++ b/block/io.c
> @@ -1876,7 +1876,6 @@ static void bdrv_write_compressed_co_entry(void *opaque)
>  int bdrv_write_compressed(BlockDriverState *bs, int64_t sector_num,
>                            const uint8_t *buf, int nb_sectors)
>  {
> -    BlockDriver *drv = bs->drv;
>      BdrvWriteCompressedCo data = {
>          .bs         = bs,
>          .sector_num = sector_num,
> @@ -1885,19 +1884,6 @@ int bdrv_write_compressed(BlockDriverState *bs, 
> int64_t sector_num,
>          .ret        = -EINPROGRESS,
>      };
>  
> -    if (!drv) {
> -        return -ENOMEDIUM;
> -    }

Why are you deleting this check?

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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