[PATCH] nvmet: fix nvmet_execute_write_zeroes function

[rosattig@linux.vnet.ibm.com (Rodrigo Rosatti Galvão)]

> Doesn't that mean your host is using this command wrong? The NLB is a
> 0's based value, we're supposed to +1 to get the correct block count.

Keith, I tested passing different values to the c (number of blocks) and 
s (64-bit LBA of first block to access) parameters, and it was failing. 
When I removed the +1, the command worked fine.

I used a simple script to validate this:

for s in {0..20}
 ??? do
 ??? ??? ??? for c in {0..20}
 ??? ??? ??? do
 ??? ??? ??????????? nvme write-zeroes /dev/nvme0 -n 10 -s $s -c $c
 ??? ??? ??? done
 ??? done


Is there some other way to test it?

-- 
Rodrigo R. Galv?o
Intern - Linux Technology Center - IBM