diff options
| author | Sagi Grimberg <sagi@grimberg.me> | 2017-07-04 10:03:03 +0300 |
|---|---|---|
| committer | Sagi Grimberg <sagi@grimberg.me> | 2017-07-06 09:49:34 +0300 |
| commit | 9b3e99058453399b506087b3ac99d67a80343333 (patch) | |
| tree | 300511d16ca704e16143cf301d44313547fb9bba /drivers/block | |
| parent | 436c15ab6596b12cfee7618ecaa69a4341ac3c51 (diff) | |
| download | linux-9b3e99058453399b506087b3ac99d67a80343333.tar.bz2 | |
virtio_blk: quiesce/unquiesce live IO when entering PM states
Without it its not guaranteed that no .queue_rq is inflight.
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Cc: virtio-dev@lists.oasis-open.org
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/virtio_blk.c | 4 |
1 files 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 |