[PATCH REPOST blktests v2 2/9] nvme: Do not hard code device size for dd test

[Daniel Wagner]

> > -	dd if=/dev/urandom of="/dev/${nvmedev}n1" count=128000 bs=4k status=none
> > +	size="$(blockdev --getsize64 "/dev/${nvmedev}n1")"
> > +	bs="$(blockdev --getbsz "/dev/${nvmedev}n1")"
> > +	count=$((size / bs - 1))
> 
> Do we need -1?

Not really. My aim was to just to make it test case a bit more
reliable. The original test didn't fill up the disk either.

I am going to drop it.