From: Satya Tangirala <satyat@google.com>
To: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
dm-devel@redhat.com
Cc: Jens Axboe <axboe@kernel.dk>, Alasdair Kergon <agk@redhat.com>,
Mike Snitzer <snitzer@redhat.com>,
Eric Biggers <ebiggers@google.com>,
Satya Tangirala <satyat@google.com>
Subject: [PATCH 3/3] dm: enable may_passthrough_inline_crypto on some targets
Date: Wed, 9 Sep 2020 23:44:22 +0000 [thread overview]
Message-ID: <20200909234422.76194-4-satyat@google.com> (raw)
In-Reply-To: <20200909234422.76194-1-satyat@google.com>
From: Eric Biggers <ebiggers@google.com>
dm-linear and dm-flakey obviously can pass through inline crypto support.
dm-zero should declare that it passes through inline crypto support, since
any reads from dm-zero should return zeroes, and blk-crypto should not
attempt to decrypt data returned from dm-zero.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Co-developed-by: Satya Tangirala <satyat@google.com>
Signed-off-by: Satya Tangirala <satyat@google.com>
---
drivers/md/dm-flakey.c | 1 +
drivers/md/dm-linear.c | 1 +
drivers/md/dm-zero.c | 1 +
3 files changed, 3 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 e1db43446327..6d81878e2ca8 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;
diff --git a/drivers/md/dm-zero.c b/drivers/md/dm-zero.c
index b65ca8dcfbdc..07e02f3a9cd1 100644
--- a/drivers/md/dm-zero.c
+++ b/drivers/md/dm-zero.c
@@ -26,6 +26,7 @@ static int zero_ctr(struct dm_target *ti, unsigned int argc, char **argv)
* Silently drop discards, avoiding -EOPNOTSUPP.
*/
ti->num_discard_bios = 1;
+ ti->may_passthrough_inline_crypto = true;
return 0;
}
--
2.28.0.618.gf4bc123cb7-goog
next prev parent reply other threads:[~2020-09-09 23:44 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-09 23:44 [PATCH 0/3] add support for inline encryption to device mapper Satya Tangirala
2020-09-09 23:44 ` [PATCH 1/3] block: keyslot-manager: Introduce passthrough keyslot manager Satya Tangirala
2020-09-22 0:27 ` Eric Biggers
2020-09-09 23:44 ` [PATCH 2/3] dm: add support for passing through inline crypto support Satya Tangirala
2020-09-22 0:32 ` Eric Biggers
2020-09-24 1:14 ` Mike Snitzer
2020-09-24 7:17 ` Satya Tangirala
2020-09-24 13:46 ` Mike Snitzer
2020-09-24 15:45 ` Eric Biggers
2020-09-24 16:16 ` Mike Snitzer
2020-09-24 16:57 ` Eric Biggers
2020-09-24 1:21 ` Mike Snitzer
2020-09-24 7:38 ` Satya Tangirala
2020-09-24 14:23 ` Mike Snitzer
2020-10-15 22:05 ` [dm-devel] " Satya Tangirala
2020-09-24 7:48 ` Satya Tangirala
2020-09-24 13:40 ` Mike Snitzer
2020-10-15 21:55 ` [dm-devel] " Satya Tangirala
2020-09-09 23:44 ` Satya Tangirala [this message]
2020-09-22 0:49 ` [PATCH 3/3] dm: enable may_passthrough_inline_crypto on some targets Eric Biggers
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