On Wed 16 Sep 2020 02:20:04 PM CEST, Vladimir Sementsov-Ogievskiy
wrote:
> bdrv_co_block_status_above has several design problems with handling
> short backing files:
>
> 1. With want_zeros=true, it may return ret with BDRV_BLOCK_ZERO but
> without BDRV_BLOCK_ALLOCATED flag, when actually short b
bdrv_co_block_status_above has several design problems with handling
short backing files:
1. With want_zeros=true, it may return ret with BDRV_BLOCK_ZERO but
without BDRV_BLOCK_ALLOCATED flag, when actually short backing file
which produces these after-EOF zeros is inside requested backing
sequenc