[PATCH 1/2] NVMe: Make surprise removal work again

[Keith Busch]

On Tue, Feb 02, 2016 at 02:41:53AM +0000, Wenbo Wang wrote:
> Is it confirmed that blk_cleanup_queue has returned? It is likely the driver stuck in del_gendisk.

Yes, the entire driver's remove completes, which includes
blk_cleanup_queue and del_gendisk.

I don't know what the task is waiting for, but recall this worked
before. Might bisect.