blk-mq: kill q->mq_map
It's just a pointer to set->mq_map, use that instead. Move the assignment a bit earlier, so we always know it's valid. Reviewed-by: NChristoph Hellwig <hch@lst.de> Reviewed-by: NHannes Reinecke <hare@suse.com> Reviewed-by: NBart Van Assche <bvanassche@acm.org> Reviewed-by: NKeith Busch <keith.busch@intel.com> Signed-off-by: NJens Axboe <axboe@kernel.dk>
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