Re: [PATCH] SCSI: don't hold device refcount in IO path

[Dongli Zhang <dongli.zhang@xxxxxxxxxx>]

On 4/2/19 7:48 PM, Ming Lei wrote:
> scsi_device's refcount is always grabed in IO path.

'grabbed'

> 
> Turns out it isn't necessary, becasue blk_queue_cleanup() will

'because blk_cleanup_queue()'

> drain any in-flight IOs, then cancel timeout/requeue work, and
> SCSI's requeue_work is canceled too in __scsi_remove_device().

Dongli Zhang