blk-mq: separate number of hardware queues from nr_cpu_ids

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With multiple maps, nr_cpu_ids is no longer the maximum number of
hardware queues we support on a given devices. The initializer of
the tag_set can have set ->nr_hw_queues larger than the available
number of CPUs, since we can exceed that with multiple queue maps.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Jens Axboe 2018-10-29 13:25:27 -06:00

parent b3c661b15d

commit 392546aed2

1 changed files with 21 additions and 7 deletions

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block/blk-mq.c

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