[PATCH V2] nvme: fix nvme_remove going to uninterruptible sleep for ever

[Sagi Grimberg]

> I think we need the NVME_CTRL_SCHED_RESET state.  In fact I'm pretty
> sure some time in the past I already had it in a local tree as a
> generalization of rdma and loop already use NVME_CTRL_RESETTING
> (they set it before queueing the reset work).

I don't remember having it, but I might be wrong...

Can you explain again why you think we need it? Sorry for being
difficult, but I'm not exactly sure why it makes things better
or simpler.