On Thu, May 28, 2015 at 04:21:43PM +0200, Paolo Bonzini wrote:
> Draining is not necessary, I/O can happen as soon as the
> commit coroutine yields.  Draining can be necessary before
> reopening the file for read/write, or while modifying the
> backing file chain, but that is done separately in
> bdrv_reopen_multiple or bdrv_close; this particular
> bdrv_drain_all does nothing for that.
> 
> Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
> ---
>  blockdev.c | 3 ---
>  1 file changed, 3 deletions(-)

Reviewed-by: Stefan Hajnoczi <stefa...@redhat.com>

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