[PATCH] nvmet: fix nvmet_execute_write_zeroes function

chaitany kulkarni ckulkarnilinux at gmail.com
Mon Apr 2 01:03:21 PDT 2018


Please give me a couple of days, I'll look into this.

On Fri, Mar 30, 2018 at 2:48 PM, Rodrigo Rosatti Galvão
<rosattig at linux.vnet.ibm.com> wrote:
>
>> 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. Galvão
> Intern - Linux Technology Center - IBM
>
>
>
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