Re: [Qemu-devel] [PATCH v2 06/17] job: Use AIO_WAIT_WHILE() in job_finish_sync()

[Paolo Bonzini]

On 13/09/2018 14:52, Kevin Wolf wrote:
> Also, job_drain() without aio_poll() isn't necessarily enough to make
> progress on a job, it could depend on bottom halves to be executed.

This is not changed by the patch though; AIO_WAIT_WHILE does not do the
bottom halves part anymore, bdrv_drain_poll_top_level does it instead.

What is it that needs bottom halves to be executed?  Could it delay
switching the job state until after that?

Thanks,

Paolo