linux-kernel - Re: [PATCH 5/7] bio-integrity: add bio_integrity

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Date:   Tue, 4 Apr 2017 00:06:41 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Dmitry Monakhov <dmonakhov@...nvz.org>
Cc:     linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
        martin.petersen@...cle.com
Subject: Re: [PATCH 5/7] bio-integrity: add bio_integrity_setup helper

On Mon, Apr 03, 2017 at 11:23:30AM +0400, Dmitry Monakhov wrote:
> Currently all integrity prep hooks are open-coded, and if prepare fails
> we ignore it's code and fail bio with EIO. Let's return real error to
> upper layer, so later caller may react accordingly. For example retry in
> case of ENOMEM.

bio_integrity_enabled and bio_integrity_prep seem to be unused outside
of  bio_integrity_setup, so they can be removed / folded into
bio_integrity_setup.  Which at this point might just keep the
bio_integrity_prep name to fit into the blocking traditions :)

Also please update Documentation/block/data-integrity.txt for your
changes and add a kerneldoc comment for the new function.