[PATCH] nvme-rdma: nvme-fc: Fix avoid tag set initialization twice.

[Christoph Hellwig]

On Tue, Feb 28, 2017 at 08:06:39PM -0600, Parav Pandit wrote:
> When BLK_MQ_F_NO_SCHED is not set for a tagset of a request queue,
> it tries to initialize the queue twice where blk_mq_alloc_rq_map() gets
> invoked twice as part of blk_mq_alloc_tag_set() and blk_mq_init_queue()
> through elevator init path.

Maybe we'll need to fix this in the block core instead of working around it?