[PATCH RFC 20/21] blk-mq: Allow combined hardware queues

This is 4th and last step change in a bid to enable mapping of multiple device hardware queues to a single CPU. Available hardware queues are evenly distributed to CPUs. Still, there might some number of queues left spared, but no more than (number of queues) % (number of CPUs) in the worst case.

[PATCH RFC 20/21] blk-mq: Allow combined hardware queues

This is 4th and last step change in a bid to enable mapping of multiple device hardware queues to a single CPU. Available hardware queues are evenly distributed to CPUs. Still, there might some number of queues left spared, but no more than (number of queues) % (number of CPUs) in the worst case.