On 23.12.2015 05:12, Fam Zheng wrote:
> The "pnum < nb_sectors" condition in deciding whether to actually copy
> data is unnecessarily strict, and the qiov initialization is
> unnecessarily for bdrv_aio_write_zeroes and bdrv_aio_discard.
> 
> Rewrite mirror_iteration to fix both flaws.
> 
> Signed-off-by: Fam Zheng <f...@redhat.com>
> ---
>  block/mirror.c | 308 
> +++++++++++++++++++++++++++++++++++----------------------
>  1 file changed, 188 insertions(+), 120 deletions(-)

Reviewed-by: Max Reitz <mre...@redhat.com>

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