linux-kernel - Re: [PATCH 9/9] bio-integrity: Restore original iterator on verify stage

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Date:   Wed, 5 Apr 2017 08:41:07 +0200
From:   Hannes Reinecke <hare@...e.de>
To:     Dmitry Monakhov <dmonakhov@...nvz.org>,
        linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
        martin.petersen@...cle.com
Subject: Re: [PATCH 9/9] bio-integrity: Restore original iterator on verify
 stage

On 04/04/2017 08:56 PM, Dmitry Monakhov wrote:
> Currently ->verify_fn not woks at all because at the moment it is called
> bio->bi_iter.bi_size == 0, so we do not iterate integrity bvecs at all.
> 
> In order to perform verification we need to know original data vector,
> with new bvec rewind API this is trivial.
> 
> testcase: https://github.com/dmonakhov/xfstests/commit/3c6509eaa83b9c17cd0bc95d73fcdd76e1c54a85
> Signed-off-by: Dmitry Monakhov <dmonakhov@...nvz.org>
> ---
>  block/bio-integrity.c | 22 +++++++++++++++-------
>  1 file changed, 15 insertions(+), 7 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare@...e.com>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		   Teamlead Storage & Networking
hare@...e.de			               +49 911 74053 688
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