On Tue, Jul 04, 2017 at 10:55:11AM +0300, Sagi Grimberg wrote: > We must make sure that no requests are being queued before we iterate > delete vqs. quiesce/unquiesce the request queue istead of start/stop > hw queues. > > Cc: Michael S. Tsirkin <mst@xxxxxxxxxx> > Cc: Jason Wang <jasowang@xxxxxxxxxx> > Signed-off-by: Sagi Grimberg <sagi@xxxxxxxxxxx> > --- > 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 > Looks fine, Reviewed-by: Ming Lei <ming.lei@xxxxxxxxxx> -- Ming
