nvme/nvd - trim seems to be one block a time

[Wojciech Puchar]

>
>       what am i doing wrong?
> 
> 
> That's what it does. Upgrade to 12 and you can use the trim collapsing code in UFS to reduce the number of trims,
so there is a final reason to upgrade.
i will - after using it on my laptop for some time.

For now i just disabled trim for this 2 UFS partitions. Not a problem 
really as it's just 1/8 of SSD space, the rest are virtual machines that 
do trim properly or unused space.