linux-kernel - Re: [PATCHv2 2/7] nvme: allow integrity on extended metadata formats

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Date:   Wed, 2 Feb 2022 14:12:36 +0100
From:   Hannes Reinecke <hare@...e.de>
To:     Keith Busch <kbusch@...nel.org>, linux-nvme@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-block@...r.kernel.org
Cc:     axboe@...nel.dk, hch@....de, martin.petersen@...cle.com,
        colyli@...e.de
Subject: Re: [PATCHv2 2/7] nvme: allow integrity on extended metadata formats

On 2/1/22 20:01, Keith Busch wrote:
> The block integrity subsystem knows how to construct protection
> information buffers with metadata beyond the protection information
> fields. Remove the driver restriction.
> 
> Note, this can only work if the PI field appears first in the metadata,
> as the integrity subsystem doesn't calculate guard tags on preceding
> metadata.
> 
> Signed-off-by: Keith Busch <kbusch@...nel.org>
> ---
>   drivers/nvme/host/core.c | 7 ++-----
>   1 file changed, 2 insertions(+), 5 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare@...e.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		           Kernel Storage Architect
hare@...e.de			                  +49 911 74053 688
SUSE Software Solutions Germany GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 36809 (AG Nürnberg), GF: Felix Imendörffer