On 2014-05-16 08:54, Christoph Hellwig wrote:
On Fri, May 16, 2014 at 08:53:22AM -0600, Jens Axboe wrote:
This patch fixes the problem by starting/stopping blk-mq
with holding vq_lock.
Why not just use blk_mq_start_hw_queues()?
That would kick off a work item on every I/O completion, something
you didn't particularly like in scsi-mq :)
It would suck, I sent a followup after that one :-)
And yes, it still needs improving in scsi-mq too.
--
Jens Axboe
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