Re: [PATCH v3 4/5] block/io: fix bdrv_is_allocated_above

[Eric Blake]

On 5/20/20 3:35 AM, Vladimir Sementsov-Ogievskiy wrote:
> bdrv_is_allocated_above wrongly handles short backing files: it reports
> after-EOF space as UNALLOCATED which is wrong, as on read the data is
> generated on the level of short backing file (if all overlays has
> unallocated area at that place).
>
> Reusing bdrv_common_block_status_above fixes the issue and unifies code
> path.
>
> Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
> ---
>   block/io.c | 43 +++++--------------------------------------
>   1 file changed, 5 insertions(+), 38 deletions(-)

Reviewed-by: Eric Blake <address@hidden>

--
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3226
Virtualization:  qemu.org | libvirt.org