On 10/13/2017 11:24 AM, Ming Lei wrote:
> For SCSI devices, there is often per-request-queue depth, which need
> to be respected before queuing one request.
>
> The current blk-mq always dequeues request first, then calls .queue_rq()
> to dispatch the request to lld. One obvious issue of this way
For SCSI devices, there is often per-request-queue depth, which need
to be respected before queuing one request.
The current blk-mq always dequeues request first, then calls .queue_rq()
to dispatch the request to lld. One obvious issue of this way is that I/O
merge may not be good, because when th
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