Re: [PATCH 6/9] block/io: expand in_flight inc/dec section: block-status

[Stefan Hajnoczi]

On Wed, Apr 08, 2020 at 12:30:48PM +0300, Vladimir Sementsov-Ogievskiy wrote:
> It's safer to expand in_flight request to start before enter to
> coroutine in synchronous wrappers and end after BDRV_POLL_WHILE loop.
> Note that qemu_coroutine_enter may only schedule the coroutine in some
> circumstances.
> 
> block-status requests are complex, they involve querying different
> block driver states across backing chain. Let's expand only in_flight
> section for the top bs, keeping other sections as is.
> 
> Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
> ---
>  block/io.c | 60 +++++++++++++++++++++++++++++++++++++++++-------------
>  1 file changed, 46 insertions(+), 14 deletions(-)

Reviewed-by: Stefan Hajnoczi <address@hidden>

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