On 22.11.2016 18:54, Vladimir Sementsov-Ogievskiy wrote:
> Postcopy migration of dirty bitmaps. Only named dirty bitmaps,
> associated with root nodes and non-root named nodes are migrated.
> 
> If destination qemu is already containing a dirty bitmap with the same name
> as a migrated bitmap (for the same node), than, if their granularities are
> the same the migration will be done, otherwise the error will be generated.
> 
> If destination qemu doesn't contain such bitmap it will be created.
> 
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> ---
>  include/migration/block.h      |   1 +
>  include/migration/migration.h  |   4 +
>  migration/Makefile.objs        |   2 +-
>  migration/block-dirty-bitmap.c | 679 +++++++++++++++++++++++++++++++++++++++++
>  migration/migration.c          |   3 +
>  migration/savevm.c             |   2 +
>  migration/trace-events         |  14 +
>  vl.c                           |   1 +
>  8 files changed, 705 insertions(+), 1 deletion(-)
>  create mode 100644 migration/block-dirty-bitmap.c

From someone who doesn't know a thing about migration, a rather cursory:

Reviewed-by: Max Reitz <mreitz@redhat.com>

But at least that probably means the set of code covered by this R-b is
disjoint from the set of code covered by Juan's R-b. :-)

Max