On Fri, Apr 22, 2016 at 07:42:29PM +0200, Kevin Wolf wrote:
> This is another feature that was "logically" part of the BlockBackend, but
> implemented as a BlockDriverState feature. It was always kept on top using
> swap_feature_fields().
>
> This series moves it to be actually implemented in the BlockBackend, removing
> another obstacle for removing bs->blk and allowing multiple BBs per BDS.
>
> Applies to block-next.
>
> v2:
> - Rebased on top of Paolo's 'bdrv_flush_io_queue removal, shared
> LinuxAioState'
> Most notable this includes a complete rewrite of patch 9 (was 10): 'block:
> Drain throttling queue with BdrvChild'. Instead of a single drain_queue()
> callback we now have a drained_begin/end() pair.
>
> - Patch 2 (was 3): 'block: Introduce BlockBackendPublic'
> Add int dummy to yet empty struct BlockBackendPublic [Eric]
>
> - Patch 11: 'block: Remove bdrv_move_feature_fields()'
> After the rebase, the function ended up empty, we can remove it now
>
> - Patch 12: 'Revert "block: Forbid I/O throttling on nodes with
> multiple parents for 2.6"'
> This was committed to master after v1 had been posted, so this one is new as
> well. The reason for forbidding this was that patch 6 ('block: Move actual
> I/O throttling to BlockBackend') would change the behaviour of the non-BB
> parents. Now that the final behaviour is implemented, we can allow the
> setup.I have posted comments. Looks good overall.
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