Max Reitz f1a7f18f07 block: Drop backing_bs()
We want to make it explicit where bs->backing is used, and we have done
so.  The old role of backing_bs() is now effectively taken by
bdrv_cow_bs().

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
2020-09-07 12:31:31 +02:00
..
2019-10-10 10:56:17 +02:00
2020-09-07 12:31:31 +02:00
2019-09-10 08:58:43 +02:00
2020-07-10 15:18:09 +02:00