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H A Dloop.cdiff 6ecda70ea9c1bf37d2abdcf52dfe06d023276173 Mon Mar 13 06:27:51 CDT 2017 Sagi Grimberg <sagi@grimberg.me> nvme-loop: handle cpu unplug when re-establishing the controller

If a cpu unplug event has occured, we need to take the minimum
of the provided nr_io_queues and the number of online cpus,
otherwise we won't be able to connect them as blk-mq mapping
won't dispatch to those queues.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>