[bug report] blktests nvme/tcp triggered WARNING at kernel/workqueue.c:2628 check_flush_dependency+0x110/0x14c

[Sagi Grimberg]

> Hello
> 
> I reproduced this issue on the linux-block/for-next, pls help check
> it, feel free to let me know if you need info/test, thanks.


These reports are making me tired... Should we just remove
MEM_RECLAIM from all nvme/nvmet workqueues are be done with
it?

The only downside is that nvme reset/error-recovery will
also be susceptible for low-memory situation...

Christoph, Keith, what are your thoughts?