Re: [Qemu-block] [PATCH v6 13/13] block/mirror: Block "device IO" during mirror exit

[Max Reitz]

On 21.05.2015 08:43, Fam Zheng wrote:
> When mirror should complete, the source and target are in sync.  But we
> call bdrv_swap() only a while later in the main loop bh. If the guest
> writes something before that, target will not get the new data.
>
> Block "device IO" before bdrv_drain and unblock it after bdrw_swap().
>
> Reported-by: Wen Congyang <address@hidden>
> Signed-off-by: Fam Zheng <address@hidden>
> ---
>   block/mirror.c | 9 ++++++++-
>   1 file changed, 8 insertions(+), 1 deletion(-)

Reviewed-by: Max Reitz <address@hidden>