On Tue, Dec 18, 2018 at 01:28:56AM +0800, Ming Lei wrote:
> >From 7e849dd9cf37 ("nvme-pci: don't share queue maps"), the mapping
> table won't be initialized actually if map->nr_queues is zero, so
> we can't use blk_mq_map_queue_type() to retrieve hctx any more.
>
> This way still may cause broken mapping, fix it by skipping zero-queues
> maps in blk_mq_map_swqueue().
Looks fine,
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
