On Fri, Jul 18, 2014 at 11:11:31AM +0800, Fam Zheng wrote: > On Thu, 07/17 19:50, Liu Yuan wrote: > > - allow drive-mirror to create sprase mirror on images like qcow2 > > - allow qemu-img map to work as expected on quorum driver > > > > Cc: Benoit Canet <ben...@irqsave.net> > > Cc: Kevin Wolf <kw...@redhat.com> > > Cc: Stefan Hajnoczi <stefa...@redhat.com> > > Signed-off-by: Liu Yuan <namei.u...@gmail.com> > > --- > > block/quorum.c | 16 ++++++++++++++++ > > 1 file changed, 16 insertions(+) > > > > diff --git a/block/quorum.c b/block/quorum.c > > index ebf5c71..f0d0a98 100644 > > --- a/block/quorum.c > > +++ b/block/quorum.c > > @@ -780,6 +780,21 @@ static coroutine_fn int > > quorum_co_flush(BlockDriverState *bs) > > return result; > > } > > > > +static int64_t coroutine_fn quorum_co_get_block_status(BlockDriverState > > *bs, > > + int64_t sector_num, > > + int nb_sectors, > > + int *pnum) > > +{ > > + BDRVQuorumState *s = bs->opaque; > > + BlockDriverState *child_bs = s->bs[0]; > > Should we consider other children? >
No, other children are identical because we always do multiple sync writes and at boot time we check the length. Thanks Yuan