Il 12/03/2012 07:29, zwu.ker...@gmail.com ha scritto: > From: Zhi Yong Wu <wu...@linux.vnet.ibm.com> > > Signed-off-by: Zhi Yong Wu <wu...@linux.vnet.ibm.com> > --- > block.c | 21 +++++++++++++++++++++ > block_int.h | 1 + > 2 files changed, 22 insertions(+), 0 deletions(-) > > diff --git a/block.c b/block.c > index 52ffe14..0825168 100644 > --- a/block.c > +++ b/block.c > @@ -853,6 +853,21 @@ void bdrv_close_all(void) > } > } > > +/** > + * Complete all pending requests for a block device > + */ > +void bdrv_drain(BlockDriverState *bs) > +{ > + do { > + qemu_co_queue_restart_all(&bs->throttled_reqs); > + } while (!qemu_co_queue_empty(&bs->throttled_reqs)); > + > + qemu_aio_flush();
This doesn't work, qemu_aio_flush can start new I/O. Paolo