Re: [Qemu-devel] [Qemu-block] [PATCH RFC v3 1/8] block: move ThrottleGroup membership to ThrottleGroupMember

[Stefan Hajnoczi]

On Fri, Jun 23, 2017 at 03:46:53PM +0300, Manos Pitsidianakis wrote:
> This commit gathers ThrottleGroup membership details from
> BlockBackendPublic into ThrottleGroupMember and refactors existing code
> to use the structure.

This summarizes the code change but doesn't explain why it's necessary.

I suggest something like this:

  This patch eliminates the 1:1 relationship between BlockBackend and
  throttle group state.  Users will be able to create multiple throttle
  nodes, each with its own throttle group state, in the future.  The
  throttle group state cannot be per-BlockBackend anymore, it must be
  per-throttle node.

> Signed-off-by: Manos Pitsidianakis <address@hidden>
> ---
>  block/block-backend.c           |  66 +++++----
>  block/qapi.c                    |   8 +-
>  block/throttle-groups.c         | 304 
> ++++++++++++++++++++--------------------
>  blockdev.c                      |   4 +-
>  include/block/throttle-groups.h |  15 +-
>  include/qemu/throttle.h         |  26 ++++
>  include/sysemu/block-backend.h  |  20 +--
>  tests/test-throttle.c           |  53 +++----
>  8 files changed, 260 insertions(+), 236 deletions(-)

Reviewed-by: Stefan Hajnoczi <address@hidden>

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