On 01/26/2016 03:38 AM, Fam Zheng wrote: > So that driver can write the dirty bits into persistent dirty bitmaps in > the write callback. > > Signed-off-by: Fam Zheng <f...@redhat.com> > --- > block/io.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-)
Reviewed-by: Eric Blake <ebl...@redhat.com>
>
> diff --git a/block/io.c b/block/io.c
> index 343ff1f..b964e7e 100644
> --- a/block/io.c
> +++ b/block/io.c
> @@ -1164,6 +1164,8 @@ static int coroutine_fn
> bdrv_aligned_pwritev(BlockDriverState *bs,
> }
> }
>
> + bdrv_set_dirty(bs, sector_num, nb_sectors);
> +
> if (ret < 0) {
> /* Do nothing, write notifier decided to fail this request */
This sets the dirty bit even on failure, but I guess that doesn't hurt
(it's better to mark too much dirty than it is to not mark enough).
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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