Re: NVMe induced NULL deref in bt_iter()

Sagi Grimberg
2017-07-04T07:56:23Z

> There are at least one case in which we have to use stop queues:
>
> - when QUEUE_BUSY(now it becomes BLK_STS_RESOURCE) happens, some drivers
> need to stop queues for avoiding to hurt CPU, such as virtio-blk, ...

Why isn't virtio_blk using blk_mq_delay_run_hw_queue like scsi does?