On 30.09.2016 12:53, Vladimir Sementsov-Ogievskiy wrote:
> Reviewed-by: John Snow <jsnow@redhat.com>
> Reviewed-by: Eric Blake <eblake@redhat.com>
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> ---
>  block/dirty-bitmap.c   | 1 +
>  include/qemu/hbitmap.h | 8 ++++++++
>  qapi/block-core.json   | 5 ++++-
>  util/hbitmap.c         | 8 ++++++++
>  4 files changed, 21 insertions(+), 1 deletion(-)

Having read John's and Eric's comments, I won't block this patch, but I
won't give an R-b either.

It's probably true that this will not significantly slow down the
query-block call, but doing this only for debugging does not seem right
to me.

I'm not sure what the right way would be to get this information out
(...maybe make it optional and set it only if qtest_enabled() is true?),
but in my opinion this is not the right way.

Since I'm not the maintainer of the bitmap code (Fam and John are, even
though their MAINTAINERS patch is not in master still...), I can't and
won't block this, though.

Max