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From: Eric Biggers <ebiggers@kernel.org>
To: Satya Tangirala <satyat@google.com>
Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
	dm-devel@redhat.com, Jens Axboe <axboe@kernel.dk>,
	Alasdair Kergon <agk@redhat.com>,
	Mike Snitzer <snitzer@redhat.com>
Subject: Re: [PATCH v2 4/4] dm: enable may_passthrough_inline_crypto on some targets
Date: Tue, 27 Oct 2020 14:10:22 -0700
Message-ID: <20201027211022.GB2416412@gmail.com> (raw)
In-Reply-To: <20201015214632.41951-5-satyat@google.com>

On Thu, Oct 15, 2020 at 09:46:32PM +0000, Satya Tangirala wrote:
> dm-linear and dm-flakey obviously can pass through inline crypto support.
> 
> Co-developed-by: Eric Biggers <ebiggers@google.com>
> Signed-off-by: Eric Biggers <ebiggers@google.com>
> Signed-off-by: Satya Tangirala <satyat@google.com>
> ---
>  drivers/md/dm-flakey.c | 1 +
>  drivers/md/dm-linear.c | 1 +
>  2 files changed, 2 insertions(+)
> 
> diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c
> index a2cc9e45cbba..655286dacc35 100644
> --- a/drivers/md/dm-flakey.c
> +++ b/drivers/md/dm-flakey.c
> @@ -253,6 +253,7 @@ static int flakey_ctr(struct dm_target *ti, unsigned int argc, char **argv)
>  	ti->num_discard_bios = 1;
>  	ti->per_io_data_size = sizeof(struct per_bio_data);
>  	ti->private = fc;
> +	ti->may_passthrough_inline_crypto = true;
>  	return 0;
>  
>  bad:
> diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
> index 00774b5d7668..345e22b9be5d 100644
> --- a/drivers/md/dm-linear.c
> +++ b/drivers/md/dm-linear.c
> @@ -62,6 +62,7 @@ static int linear_ctr(struct dm_target *ti, unsigned int argc, char **argv)
>  	ti->num_secure_erase_bios = 1;
>  	ti->num_write_same_bios = 1;
>  	ti->num_write_zeroes_bios = 1;
> +	ti->may_passthrough_inline_crypto = true;
>  	ti->private = lc;
>  	return 0;

How about instead using a flag DM_TARGET_PASSES_CRYPTO in target_type::features,
analogous to DM_TARGET_PASSES_INTEGRITY?

- Eric

      reply index

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-15 21:46 [PATCH v2 0/4] add support for inline encryption to device mapper Satya Tangirala
2020-10-15 21:46 ` [PATCH v2 1/4] block: keyslot-manager: Introduce passthrough keyslot manager Satya Tangirala
2020-10-16  7:20   ` Christoph Hellwig
2020-10-21  4:44     ` Eric Biggers
2020-10-21  5:27       ` Satya Tangirala
2020-10-27 20:04   ` Eric Biggers
2020-10-15 21:46 ` [PATCH v2 2/4] block: add private field to struct keyslot_manager Satya Tangirala
2020-10-16  7:19   ` Christoph Hellwig
2020-10-16  8:39     ` Satya Tangirala
2020-10-15 21:46 ` [PATCH v2 3/4] dm: add support for passing through inline crypto support Satya Tangirala
2020-10-25 21:02   ` kernel test robot
2020-10-25 21:02   ` [PATCH] dm: fix err_cast.cocci warnings kernel test robot
2020-10-27 21:31   ` [PATCH v2 3/4] dm: add support for passing through inline crypto support Eric Biggers
2020-10-27 23:58     ` Satya Tangirala
2020-10-28  0:17       ` Eric Biggers
2020-10-29  4:44         ` Satya Tangirala
2020-10-15 21:46 ` [PATCH v2 4/4] dm: enable may_passthrough_inline_crypto on some targets Satya Tangirala
2020-10-27 21:10   ` Eric Biggers [this message]

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