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From: Satya Tangirala via Linux-f2fs-devel <linux-f2fs-devel@lists.sourceforge.net>
To: linux-fscrypt@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	 linux-f2fs-devel@lists.sourceforge.net,
	linux-ext4@vger.kernel.org
Cc: Satya Tangirala <satyat@google.com>
Subject: [f2fs-dev] [PATCH 0/5] add support for direct I/O with fscrypt using blk-crypto
Date: Thu,  9 Jul 2020 19:47:46 +0000
Message-ID: <20200709194751.2579207-1-satyat@google.com> (raw)

This patch series adds support for direct I/O with fscrypt using
blk-crypto. It has been rebased on fscrypt/inline-encryption.

Patch 1 adds two functions to fscrypt that need to be called to determine
if direct I/O is supported for a request.

Patches 2 and 3 wire up direct-io and iomap respectively with the functions
introduced in Patch 1 and set bio crypt contexts on bios when appropriate
by calling into fscrypt.

Patches 4 and 5 allow ext4 and f2fs direct I/O to support fscrypt without
falling back to buffered I/O.

This patch series was tested by running xfstests with test_dummy_encryption
with and without the 'inlinecrypt' mount option, and there were no
meaningful regressions. The only regression was for generic/587 on ext4,
but that test isn't compatible with test_dummy_encryption in the first
place, and the test "incorrectly" passes without the 'inlinecrypt' mount
option - a patch will be sent out to exclude that test when
test_dummy_encryption is turned on with ext4 (like the other quota related
tests that use user visible quota files).

Eric Biggers (5):
  fscrypt: Add functions for direct I/O support
  direct-io: add support for fscrypt using blk-crypto
  iomap: support direct I/O with fscrypt using blk-crypto
  ext4: support direct I/O with fscrypt using blk-crypto
  f2fs: support direct I/O with fscrypt using blk-crypto

 fs/crypto/crypto.c       |  8 +++++
 fs/crypto/inline_crypt.c | 72 ++++++++++++++++++++++++++++++++++++++++
 fs/direct-io.c           | 15 ++++++++-
 fs/ext4/file.c           | 10 +++---
 fs/f2fs/f2fs.h           |  4 ++-
 fs/iomap/direct-io.c     |  8 +++++
 include/linux/fscrypt.h  | 19 +++++++++++
 7 files changed, 130 insertions(+), 6 deletions(-)

-- 
2.27.0.383.g050319c2ae-goog



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Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-09 19:47 Satya Tangirala via Linux-f2fs-devel [this message]
2020-07-09 19:47 ` [f2fs-dev] [PATCH 1/5] fscrypt: Add functions for direct I/O support Satya Tangirala via Linux-f2fs-devel
2020-07-09 21:54   ` Eric Biggers
2020-07-09 19:47 ` [f2fs-dev] [PATCH 2/5] direct-io: add support for fscrypt using blk-crypto Satya Tangirala via Linux-f2fs-devel
2020-07-10  5:34   ` Christoph Hellwig
2020-07-13 18:36     ` Eric Biggers
2020-07-17  1:56       ` Satya Tangirala via Linux-f2fs-devel
2020-07-09 19:47 ` [f2fs-dev] [PATCH 3/5] iomap: support direct I/O with " Satya Tangirala via Linux-f2fs-devel
2020-07-09 21:59   ` Eric Biggers
2020-07-09 19:47 ` [f2fs-dev] [PATCH 4/5] ext4: " Satya Tangirala via Linux-f2fs-devel
2020-07-09 22:30   ` Eric Biggers
2020-07-09 19:47 ` [f2fs-dev] [PATCH 5/5] f2fs: " Satya Tangirala via Linux-f2fs-devel
2020-07-10  1:05   ` Chao Yu
2020-07-10  1:15     ` Eric Biggers
2020-07-09 22:46 ` [f2fs-dev] [PATCH 0/5] add support for " Eric Biggers

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