Without it its not guaranteed that no .queue_rq is inflight. Reviewed-by: Ming Lei <ming....@redhat.com> Acked-by: Michael S. Tsirkin <m...@redhat.com> Cc: virtio-...@lists.oasis-open.org Cc: Jason Wang <jasow...@redhat.com> Signed-off-by: Sagi Grimberg <s...@grimberg.me> --- drivers/block/virtio_blk.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 0297ad7c1452..4e02aa5fdac0 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -840,7 +840,7 @@ static int virtblk_freeze(struct virtio_device *vdev) /* Make sure no work handler is accessing the device. */ flush_work(&vblk->config_work); - blk_mq_stop_hw_queues(vblk->disk->queue); + blk_mq_quiesce_queue(vblk->disk->queue); vdev->config->del_vqs(vdev); return 0; @@ -857,7 +857,7 @@ static int virtblk_restore(struct virtio_device *vdev) virtio_device_ready(vdev); - blk_mq_start_stopped_hw_queues(vblk->disk->queue, true); + blk_mq_unquiesce_queue(vblk->disk->queue); return 0; } #endif -- 2.7.4