From: Zhi Yong Wu <wu...@linux.vnet.ibm.com> The patch is based on the latest QEMU upstream. If you will backport the patchset to QEMU 1.0, pls note the difference.
Signed-off-by: Zhi Yong Wu <wu...@linux.vnet.ibm.com> --- block.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/block.c b/block.c index ae297bb..07cd143 100644 --- a/block.c +++ b/block.c @@ -863,6 +863,12 @@ void bdrv_drain_all(void) { BlockDriverState *bs; + QTAILQ_FOREACH(bs, &bdrv_states, list) { + if (!qemu_co_queue_empty(&bs->throttled_reqs)) { + qemu_co_queue_restart_all(&bs->throttled_reqs); + } + } + qemu_aio_flush(); /* If requests are still pending there is a bug somewhere */ -- 1.7.6