block: save previous hardware queue count before udpate
blk_mq_realloc_tag_set_tags will update set->nr_hw_queues, so save old set->nr_hw_queues before call this function. Signed-off-by:Weiping Zhang <zhangweiping@didiglobal.com> Reviewed-by:
Bart Van Assche <bvanassche@acm.org> Reviewed-by:
Ming Lei <ming.lei@redhat.com> Reviewed-by:
Christoph Hellwig <hch@lst.de> Reviewed-by:
Hannes Reinecke <hare@suse.de> Signed-off-by:
Jens Axboe <axboe@kernel.dk>
parent
2e194422
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