Error while enabling io_poll for NVMe SSD

[Nikhil Sambhus <nikhilsambhus@xxxxxxxxx>]

Hi,

On a Linux Kernel 5.0.0+ machine (Ubuntu 16.04)  I am using the
following command as a root user to enable polling for a NVMe SSD
device.

# echo 1 > /sys/block/nvme2n1/queue/io_poll

I get the following error:

bash: echo: write error: Invalid argument

The current value of io_poll is 0.
-- 
Regards,
Nikhil P Sambhus

"To bug is human, to debug is divine"