Re: [Qemu-block] [PATCH 1/3] block: add bdrv_co_drain_end callback

[Stefan Hajnoczi]

On Wed, Sep 20, 2017 at 01:23:09PM +0300, Manos Pitsidianakis wrote:
> diff --git a/include/block/block_int.h b/include/block/block_int.h
> index ba4c383393..ea1326e3c7 100644
> --- a/include/block/block_int.h
> +++ b/include/block/block_int.h
> @@ -359,6 +359,8 @@ struct BlockDriver {
>       */
>      void coroutine_fn (*bdrv_co_drain)(BlockDriverState *bs);
>  
> +    void coroutine_fn (*bdrv_co_drain_end)(BlockDriverState *bs);

Please update the doc comment to describe the environment under which
begin() and end() are invoked.  It should be clear when to implement
begin() and/or end().