linux-kernel - Re: [PATCH] nvmet: fix nvmet_execute_write_zeroes function

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Date:   Mon, 2 Apr 2018 01:03:21 -0700
From:   chaitany kulkarni <ckulkarnilinux@...il.com>
To:     Rodrigo Rosatti Galvão 
        <rosattig@...ux.vnet.ibm.com>
Cc:     Keith Busch <keith.busch@...el.com>,
        Sagi Grimberg <sagi@...mberg.me>, linux-kernel@...r.kernel.org,
        linux-nvme@...ts.infradead.org, hch@....de,
        Chaitanya Kulkarni <chaitanya.kulkarni@....com>
Subject: Re: [PATCH] nvmet: fix nvmet_execute_write_zeroes function

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@...ux.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
>
>
>
> _______________________________________________
> Linux-nvme mailing list
> Linux-nvme@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-nvme

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