[dm-devel] [PATCH 01/11] blk-mq: Add blk_mq_init_queue_ops()

[Bart Van Assche]

On 3/22/22 03:39, John Garry wrote:
> Add an API to allocate a request queue which accepts a custom set of
> blk_mq_ops for that request queue.
> 
> The reason which we may want custom ops is for queuing requests which we
> don't want to go through the normal queuing path.

Custom ops shouldn't be required for this. See e.g. how tmf_queue
is used in the UFS driver for an example of a queue implementation
with custom operations and that does not require changes of the block
layer core.

Thanks,

Bart.